5978 lines
216 KiB
JavaScript
5978 lines
216 KiB
JavaScript
/**
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* interact.js v1.2.6
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*
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* Copyright (c) 2012-2015 Taye Adeyemi <dev@taye.me>
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* Open source under the MIT License.
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* https://raw.github.com/taye/interact.js/master/LICENSE
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*/
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(function (realWindow) {
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'use strict';
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// return early if there's no window to work with (eg. Node.js)
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if (!realWindow) { return; }
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var // get wrapped window if using Shadow DOM polyfill
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window = (function () {
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// create a TextNode
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var el = realWindow.document.createTextNode('');
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// check if it's wrapped by a polyfill
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if (el.ownerDocument !== realWindow.document
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&& typeof realWindow.wrap === 'function'
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&& realWindow.wrap(el) === el) {
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// return wrapped window
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return realWindow.wrap(realWindow);
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}
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// no Shadow DOM polyfil or native implementation
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return realWindow;
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}()),
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document = window.document,
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DocumentFragment = window.DocumentFragment || blank,
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SVGElement = window.SVGElement || blank,
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SVGSVGElement = window.SVGSVGElement || blank,
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SVGElementInstance = window.SVGElementInstance || blank,
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HTMLElement = window.HTMLElement || window.Element,
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PointerEvent = (window.PointerEvent || window.MSPointerEvent),
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pEventTypes,
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hypot = Math.hypot || function (x, y) { return Math.sqrt(x * x + y * y); },
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tmpXY = {}, // reduce object creation in getXY()
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documents = [], // all documents being listened to
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interactables = [], // all set interactables
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interactions = [], // all interactions
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dynamicDrop = false,
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// {
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// type: {
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// selectors: ['selector', ...],
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// contexts : [document, ...],
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// listeners: [[listener, useCapture], ...]
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// }
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// }
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delegatedEvents = {},
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defaultOptions = {
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base: {
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accept : null,
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actionChecker : null,
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styleCursor : true,
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preventDefault: 'auto',
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origin : { x: 0, y: 0 },
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deltaSource : 'page',
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allowFrom : null,
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ignoreFrom : null,
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_context : document,
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dropChecker : null
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},
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drag: {
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enabled: false,
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manualStart: true,
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max: Infinity,
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maxPerElement: 1,
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snap: null,
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restrict: null,
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inertia: null,
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autoScroll: null,
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axis: 'xy'
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},
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drop: {
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enabled: false,
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accept: null,
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overlap: 'pointer'
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},
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resize: {
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enabled: false,
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manualStart: false,
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max: Infinity,
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maxPerElement: 1,
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snap: null,
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restrict: null,
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inertia: null,
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autoScroll: null,
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square: false,
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preserveAspectRatio: false,
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axis: 'xy',
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// use default margin
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margin: NaN,
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// object with props left, right, top, bottom which are
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// true/false values to resize when the pointer is over that edge,
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// CSS selectors to match the handles for each direction
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// or the Elements for each handle
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edges: null,
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// a value of 'none' will limit the resize rect to a minimum of 0x0
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// 'negate' will alow the rect to have negative width/height
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// 'reposition' will keep the width/height positive by swapping
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// the top and bottom edges and/or swapping the left and right edges
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invert: 'none'
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},
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gesture: {
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manualStart: false,
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enabled: false,
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max: Infinity,
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maxPerElement: 1,
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restrict: null
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},
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perAction: {
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manualStart: false,
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max: Infinity,
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maxPerElement: 1,
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snap: {
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enabled : false,
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endOnly : false,
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range : Infinity,
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targets : null,
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offsets : null,
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relativePoints: null
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},
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restrict: {
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enabled: false,
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endOnly: false
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},
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autoScroll: {
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enabled : false,
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container : null, // the item that is scrolled (Window or HTMLElement)
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margin : 60,
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speed : 300 // the scroll speed in pixels per second
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},
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inertia: {
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enabled : false,
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resistance : 10, // the lambda in exponential decay
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minSpeed : 100, // target speed must be above this for inertia to start
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endSpeed : 10, // the speed at which inertia is slow enough to stop
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allowResume : true, // allow resuming an action in inertia phase
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zeroResumeDelta : true, // if an action is resumed after launch, set dx/dy to 0
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smoothEndDuration: 300 // animate to snap/restrict endOnly if there's no inertia
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}
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},
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_holdDuration: 600
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},
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// Things related to autoScroll
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autoScroll = {
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interaction: null,
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i: null, // the handle returned by window.setInterval
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x: 0, y: 0, // Direction each pulse is to scroll in
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// scroll the window by the values in scroll.x/y
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scroll: function () {
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var options = autoScroll.interaction.target.options[autoScroll.interaction.prepared.name].autoScroll,
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container = options.container || getWindow(autoScroll.interaction.element),
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now = new Date().getTime(),
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// change in time in seconds
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dtx = (now - autoScroll.prevTimeX) / 1000,
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dty = (now - autoScroll.prevTimeY) / 1000,
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vx, vy, sx, sy;
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// displacement
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if (options.velocity) {
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vx = options.velocity.x;
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vy = options.velocity.y;
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}
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else {
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vx = vy = options.speed
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}
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sx = vx * dtx;
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sy = vy * dty;
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if (sx >= 1 || sy >= 1) {
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if (isWindow(container)) {
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container.scrollBy(autoScroll.x * sx, autoScroll.y * sy);
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}
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else if (container) {
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container.scrollLeft += autoScroll.x * sx;
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container.scrollTop += autoScroll.y * sy;
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}
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if (sx >=1) autoScroll.prevTimeX = now;
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if (sy >= 1) autoScroll.prevTimeY = now;
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}
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if (autoScroll.isScrolling) {
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cancelFrame(autoScroll.i);
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autoScroll.i = reqFrame(autoScroll.scroll);
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}
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},
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isScrolling: false,
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prevTimeX: 0,
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prevTimeY: 0,
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start: function (interaction) {
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autoScroll.isScrolling = true;
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cancelFrame(autoScroll.i);
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autoScroll.interaction = interaction;
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autoScroll.prevTimeX = new Date().getTime();
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autoScroll.prevTimeY = new Date().getTime();
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autoScroll.i = reqFrame(autoScroll.scroll);
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},
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stop: function () {
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autoScroll.isScrolling = false;
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cancelFrame(autoScroll.i);
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}
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},
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// Does the browser support touch input?
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supportsTouch = (('ontouchstart' in window) || window.DocumentTouch && document instanceof window.DocumentTouch),
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// Does the browser support PointerEvents
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// Avoid PointerEvent bugs introduced in Chrome 55
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supportsPointerEvent = PointerEvent && !/Chrome/.test(navigator.userAgent),
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// Less Precision with touch input
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margin = supportsTouch || supportsPointerEvent? 20: 10,
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pointerMoveTolerance = 1,
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// for ignoring browser's simulated mouse events
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prevTouchTime = 0,
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// Allow this many interactions to happen simultaneously
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maxInteractions = Infinity,
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// Check if is IE9 or older
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actionCursors = (document.all && !window.atob) ? {
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drag : 'move',
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resizex : 'e-resize',
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resizey : 's-resize',
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resizexy: 'se-resize',
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resizetop : 'n-resize',
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resizeleft : 'w-resize',
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resizebottom : 's-resize',
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resizeright : 'e-resize',
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resizetopleft : 'se-resize',
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resizebottomright: 'se-resize',
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resizetopright : 'ne-resize',
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resizebottomleft : 'ne-resize',
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gesture : ''
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} : {
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drag : 'move',
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resizex : 'ew-resize',
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resizey : 'ns-resize',
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resizexy: 'nwse-resize',
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resizetop : 'ns-resize',
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resizeleft : 'ew-resize',
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resizebottom : 'ns-resize',
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resizeright : 'ew-resize',
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resizetopleft : 'nwse-resize',
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resizebottomright: 'nwse-resize',
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resizetopright : 'nesw-resize',
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resizebottomleft : 'nesw-resize',
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gesture : ''
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},
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actionIsEnabled = {
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drag : true,
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resize : true,
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gesture: true
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},
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// because Webkit and Opera still use 'mousewheel' event type
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wheelEvent = 'onmousewheel' in document? 'mousewheel': 'wheel',
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eventTypes = [
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'dragstart',
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'dragmove',
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'draginertiastart',
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'dragend',
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'dragenter',
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'dragleave',
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'dropactivate',
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'dropdeactivate',
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'dropmove',
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'drop',
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'resizestart',
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'resizemove',
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'resizeinertiastart',
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'resizeend',
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'gesturestart',
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'gesturemove',
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'gestureinertiastart',
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'gestureend',
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'down',
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'move',
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'up',
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'cancel',
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'tap',
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'doubletap',
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'hold'
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],
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globalEvents = {},
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// Opera Mobile must be handled differently
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isOperaMobile = navigator.appName == 'Opera' &&
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supportsTouch &&
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navigator.userAgent.match('Presto'),
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// scrolling doesn't change the result of getClientRects on iOS 7
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isIOS7 = (/iP(hone|od|ad)/.test(navigator.platform)
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&& /OS 7[^\d]/.test(navigator.appVersion)),
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// prefix matchesSelector
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prefixedMatchesSelector = 'matches' in Element.prototype?
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'matches': 'webkitMatchesSelector' in Element.prototype?
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'webkitMatchesSelector': 'mozMatchesSelector' in Element.prototype?
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'mozMatchesSelector': 'oMatchesSelector' in Element.prototype?
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'oMatchesSelector': 'msMatchesSelector',
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// will be polyfill function if browser is IE8
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ie8MatchesSelector,
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// native requestAnimationFrame or polyfill
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reqFrame = realWindow.requestAnimationFrame,
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cancelFrame = realWindow.cancelAnimationFrame,
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// Events wrapper
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events = (function () {
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var useAttachEvent = ('attachEvent' in window) && !('addEventListener' in window),
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addEvent = useAttachEvent? 'attachEvent': 'addEventListener',
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removeEvent = useAttachEvent? 'detachEvent': 'removeEventListener',
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on = useAttachEvent? 'on': '',
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elements = [],
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targets = [],
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attachedListeners = [];
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function add (element, type, listener, useCapture) {
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var elementIndex = indexOf(elements, element),
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target = targets[elementIndex];
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if (!target) {
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target = {
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events: {},
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typeCount: 0
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};
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elementIndex = elements.push(element) - 1;
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targets.push(target);
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attachedListeners.push((useAttachEvent ? {
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supplied: [],
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wrapped : [],
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useCount: []
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} : null));
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}
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if (!target.events[type]) {
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target.events[type] = [];
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target.typeCount++;
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}
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if (!contains(target.events[type], listener)) {
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var ret;
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if (useAttachEvent) {
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var listeners = attachedListeners[elementIndex],
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listenerIndex = indexOf(listeners.supplied, listener);
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var wrapped = listeners.wrapped[listenerIndex] || function (event) {
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if (!event.immediatePropagationStopped) {
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event.target = event.srcElement;
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event.currentTarget = element;
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||
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event.preventDefault = event.preventDefault || preventDef;
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event.stopPropagation = event.stopPropagation || stopProp;
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event.stopImmediatePropagation = event.stopImmediatePropagation || stopImmProp;
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||
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if (/mouse|click/.test(event.type)) {
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event.pageX = event.clientX + getWindow(element).document.documentElement.scrollLeft;
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event.pageY = event.clientY + getWindow(element).document.documentElement.scrollTop;
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}
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listener(event);
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}
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};
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ret = element[addEvent](on + type, wrapped, Boolean(useCapture));
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if (listenerIndex === -1) {
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listeners.supplied.push(listener);
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listeners.wrapped.push(wrapped);
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listeners.useCount.push(1);
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}
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else {
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listeners.useCount[listenerIndex]++;
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}
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}
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else {
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ret = element[addEvent](type, listener, useCapture || false);
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}
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target.events[type].push(listener);
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return ret;
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}
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}
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function remove (element, type, listener, useCapture) {
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var i,
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elementIndex = indexOf(elements, element),
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target = targets[elementIndex],
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listeners,
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listenerIndex,
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wrapped = listener;
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||
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if (!target || !target.events) {
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return;
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}
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if (useAttachEvent) {
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listeners = attachedListeners[elementIndex];
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listenerIndex = indexOf(listeners.supplied, listener);
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wrapped = listeners.wrapped[listenerIndex];
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}
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if (type === 'all') {
|
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for (type in target.events) {
|
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if (target.events.hasOwnProperty(type)) {
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remove(element, type, 'all');
|
||
}
|
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}
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||
return;
|
||
}
|
||
|
||
if (target.events[type]) {
|
||
var len = target.events[type].length;
|
||
|
||
if (listener === 'all') {
|
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for (i = 0; i < len; i++) {
|
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remove(element, type, target.events[type][i], Boolean(useCapture));
|
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}
|
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return;
|
||
} else {
|
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for (i = 0; i < len; i++) {
|
||
if (target.events[type][i] === listener) {
|
||
element[removeEvent](on + type, wrapped, useCapture || false);
|
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target.events[type].splice(i, 1);
|
||
|
||
if (useAttachEvent && listeners) {
|
||
listeners.useCount[listenerIndex]--;
|
||
if (listeners.useCount[listenerIndex] === 0) {
|
||
listeners.supplied.splice(listenerIndex, 1);
|
||
listeners.wrapped.splice(listenerIndex, 1);
|
||
listeners.useCount.splice(listenerIndex, 1);
|
||
}
|
||
}
|
||
|
||
break;
|
||
}
|
||
}
|
||
}
|
||
|
||
if (target.events[type] && target.events[type].length === 0) {
|
||
target.events[type] = null;
|
||
target.typeCount--;
|
||
}
|
||
}
|
||
|
||
if (!target.typeCount) {
|
||
targets.splice(elementIndex, 1);
|
||
elements.splice(elementIndex, 1);
|
||
attachedListeners.splice(elementIndex, 1);
|
||
}
|
||
}
|
||
|
||
function preventDef () {
|
||
this.returnValue = false;
|
||
}
|
||
|
||
function stopProp () {
|
||
this.cancelBubble = true;
|
||
}
|
||
|
||
function stopImmProp () {
|
||
this.cancelBubble = true;
|
||
this.immediatePropagationStopped = true;
|
||
}
|
||
|
||
return {
|
||
add: add,
|
||
remove: remove,
|
||
useAttachEvent: useAttachEvent,
|
||
|
||
_elements: elements,
|
||
_targets: targets,
|
||
_attachedListeners: attachedListeners
|
||
};
|
||
}());
|
||
|
||
function blank () {}
|
||
|
||
function isElement (o) {
|
||
if (!o || (typeof o !== 'object')) { return false; }
|
||
|
||
var _window = getWindow(o) || window;
|
||
|
||
return (/object|function/.test(typeof _window.Element)
|
||
? o instanceof _window.Element //DOM2
|
||
: o.nodeType === 1 && typeof o.nodeName === "string");
|
||
}
|
||
function isWindow (thing) { return thing === window || !!(thing && thing.Window) && (thing instanceof thing.Window); }
|
||
function isDocFrag (thing) { return !!thing && thing instanceof DocumentFragment; }
|
||
function isArray (thing) {
|
||
return isObject(thing)
|
||
&& (typeof thing.length !== undefined)
|
||
&& isFunction(thing.splice);
|
||
}
|
||
function isObject (thing) { return !!thing && (typeof thing === 'object'); }
|
||
function isFunction (thing) { return typeof thing === 'function'; }
|
||
function isNumber (thing) { return typeof thing === 'number' ; }
|
||
function isBool (thing) { return typeof thing === 'boolean' ; }
|
||
function isString (thing) { return typeof thing === 'string' ; }
|
||
|
||
function trySelector (value) {
|
||
if (!isString(value)) { return false; }
|
||
|
||
// an exception will be raised if it is invalid
|
||
document.querySelector(value);
|
||
return true;
|
||
}
|
||
|
||
function extend (dest, source) {
|
||
for (var prop in source) {
|
||
dest[prop] = source[prop];
|
||
}
|
||
return dest;
|
||
}
|
||
|
||
var prefixedPropREs = {
|
||
webkit: /(Movement[XY]|Radius[XY]|RotationAngle|Force)$/
|
||
};
|
||
|
||
function pointerExtend (dest, source) {
|
||
for (var prop in source) {
|
||
var deprecated = false;
|
||
|
||
// skip deprecated prefixed properties
|
||
for (var vendor in prefixedPropREs) {
|
||
if (prop.indexOf(vendor) === 0 && prefixedPropREs[vendor].test(prop)) {
|
||
deprecated = true;
|
||
break;
|
||
}
|
||
}
|
||
|
||
if (!deprecated) {
|
||
dest[prop] = source[prop];
|
||
}
|
||
}
|
||
return dest;
|
||
}
|
||
|
||
function copyCoords (dest, src) {
|
||
dest.page = dest.page || {};
|
||
dest.page.x = src.page.x;
|
||
dest.page.y = src.page.y;
|
||
|
||
dest.client = dest.client || {};
|
||
dest.client.x = src.client.x;
|
||
dest.client.y = src.client.y;
|
||
|
||
dest.timeStamp = src.timeStamp;
|
||
}
|
||
|
||
function setEventXY (targetObj, pointers, interaction) {
|
||
var pointer = (pointers.length > 1
|
||
? pointerAverage(pointers)
|
||
: pointers[0]);
|
||
|
||
getPageXY(pointer, tmpXY, interaction);
|
||
targetObj.page.x = tmpXY.x;
|
||
targetObj.page.y = tmpXY.y;
|
||
|
||
getClientXY(pointer, tmpXY, interaction);
|
||
targetObj.client.x = tmpXY.x;
|
||
targetObj.client.y = tmpXY.y;
|
||
|
||
targetObj.timeStamp = new Date().getTime();
|
||
}
|
||
|
||
function setEventDeltas (targetObj, prev, cur) {
|
||
targetObj.page.x = cur.page.x - prev.page.x;
|
||
targetObj.page.y = cur.page.y - prev.page.y;
|
||
targetObj.client.x = cur.client.x - prev.client.x;
|
||
targetObj.client.y = cur.client.y - prev.client.y;
|
||
targetObj.timeStamp = new Date().getTime() - prev.timeStamp;
|
||
|
||
// set pointer velocity
|
||
var dt = Math.max(targetObj.timeStamp / 1000, 0.001);
|
||
targetObj.page.speed = hypot(targetObj.page.x, targetObj.page.y) / dt;
|
||
targetObj.page.vx = targetObj.page.x / dt;
|
||
targetObj.page.vy = targetObj.page.y / dt;
|
||
|
||
targetObj.client.speed = hypot(targetObj.client.x, targetObj.page.y) / dt;
|
||
targetObj.client.vx = targetObj.client.x / dt;
|
||
targetObj.client.vy = targetObj.client.y / dt;
|
||
}
|
||
|
||
function isNativePointer (pointer) {
|
||
return (pointer instanceof window.Event
|
||
|| (supportsTouch && window.Touch && pointer instanceof window.Touch));
|
||
}
|
||
|
||
// Get specified X/Y coords for mouse or event.touches[0]
|
||
function getXY (type, pointer, xy) {
|
||
xy = xy || {};
|
||
type = type || 'page';
|
||
|
||
xy.x = pointer[type + 'X'];
|
||
xy.y = pointer[type + 'Y'];
|
||
|
||
return xy;
|
||
}
|
||
|
||
function getPageXY (pointer, page) {
|
||
page = page || {};
|
||
|
||
// Opera Mobile handles the viewport and scrolling oddly
|
||
if (isOperaMobile && isNativePointer(pointer)) {
|
||
getXY('screen', pointer, page);
|
||
|
||
page.x += window.scrollX;
|
||
page.y += window.scrollY;
|
||
}
|
||
else {
|
||
getXY('page', pointer, page);
|
||
}
|
||
|
||
return page;
|
||
}
|
||
|
||
function getClientXY (pointer, client) {
|
||
client = client || {};
|
||
|
||
if (isOperaMobile && isNativePointer(pointer)) {
|
||
// Opera Mobile handles the viewport and scrolling oddly
|
||
getXY('screen', pointer, client);
|
||
}
|
||
else {
|
||
getXY('client', pointer, client);
|
||
}
|
||
|
||
return client;
|
||
}
|
||
|
||
function getScrollXY (win) {
|
||
win = win || window;
|
||
return {
|
||
x: win.scrollX || win.document.documentElement.scrollLeft,
|
||
y: win.scrollY || win.document.documentElement.scrollTop
|
||
};
|
||
}
|
||
|
||
function getPointerId (pointer) {
|
||
return isNumber(pointer.pointerId)? pointer.pointerId : pointer.identifier;
|
||
}
|
||
|
||
function getActualElement (element) {
|
||
return (element instanceof SVGElementInstance
|
||
? element.correspondingUseElement
|
||
: element);
|
||
}
|
||
|
||
function getWindow (node) {
|
||
if (isWindow(node)) {
|
||
return node;
|
||
}
|
||
|
||
var rootNode = (node.ownerDocument || node);
|
||
|
||
return rootNode.defaultView || rootNode.parentWindow || window;
|
||
}
|
||
|
||
function getElementClientRect (element) {
|
||
var clientRect = (element instanceof SVGElement
|
||
? element.getBoundingClientRect()
|
||
: element.getClientRects()[0]);
|
||
|
||
return clientRect && {
|
||
left : clientRect.left,
|
||
right : clientRect.right,
|
||
top : clientRect.top,
|
||
bottom: clientRect.bottom,
|
||
width : clientRect.width || clientRect.right - clientRect.left,
|
||
height: clientRect.height || clientRect.bottom - clientRect.top
|
||
};
|
||
}
|
||
|
||
function getElementRect (element) {
|
||
var clientRect = getElementClientRect(element);
|
||
|
||
if (!isIOS7 && clientRect) {
|
||
var scroll = getScrollXY(getWindow(element));
|
||
|
||
clientRect.left += scroll.x;
|
||
clientRect.right += scroll.x;
|
||
clientRect.top += scroll.y;
|
||
clientRect.bottom += scroll.y;
|
||
}
|
||
|
||
return clientRect;
|
||
}
|
||
|
||
function getTouchPair (event) {
|
||
var touches = [];
|
||
|
||
// array of touches is supplied
|
||
if (isArray(event)) {
|
||
touches[0] = event[0];
|
||
touches[1] = event[1];
|
||
}
|
||
// an event
|
||
else {
|
||
if (event.type === 'touchend') {
|
||
if (event.touches.length === 1) {
|
||
touches[0] = event.touches[0];
|
||
touches[1] = event.changedTouches[0];
|
||
}
|
||
else if (event.touches.length === 0) {
|
||
touches[0] = event.changedTouches[0];
|
||
touches[1] = event.changedTouches[1];
|
||
}
|
||
}
|
||
else {
|
||
touches[0] = event.touches[0];
|
||
touches[1] = event.touches[1];
|
||
}
|
||
}
|
||
|
||
return touches;
|
||
}
|
||
|
||
function pointerAverage (pointers) {
|
||
var average = {
|
||
pageX : 0,
|
||
pageY : 0,
|
||
clientX: 0,
|
||
clientY: 0,
|
||
screenX: 0,
|
||
screenY: 0
|
||
};
|
||
var prop;
|
||
|
||
for (var i = 0; i < pointers.length; i++) {
|
||
for (prop in average) {
|
||
average[prop] += pointers[i][prop];
|
||
}
|
||
}
|
||
for (prop in average) {
|
||
average[prop] /= pointers.length;
|
||
}
|
||
|
||
return average;
|
||
}
|
||
|
||
function touchBBox (event) {
|
||
if (!event.length && !(event.touches && event.touches.length > 1)) {
|
||
return;
|
||
}
|
||
|
||
var touches = getTouchPair(event),
|
||
minX = Math.min(touches[0].pageX, touches[1].pageX),
|
||
minY = Math.min(touches[0].pageY, touches[1].pageY),
|
||
maxX = Math.max(touches[0].pageX, touches[1].pageX),
|
||
maxY = Math.max(touches[0].pageY, touches[1].pageY);
|
||
|
||
return {
|
||
x: minX,
|
||
y: minY,
|
||
left: minX,
|
||
top: minY,
|
||
width: maxX - minX,
|
||
height: maxY - minY
|
||
};
|
||
}
|
||
|
||
function touchDistance (event, deltaSource) {
|
||
deltaSource = deltaSource || defaultOptions.deltaSource;
|
||
|
||
var sourceX = deltaSource + 'X',
|
||
sourceY = deltaSource + 'Y',
|
||
touches = getTouchPair(event);
|
||
|
||
|
||
var dx = touches[0][sourceX] - touches[1][sourceX],
|
||
dy = touches[0][sourceY] - touches[1][sourceY];
|
||
|
||
return hypot(dx, dy);
|
||
}
|
||
|
||
function touchAngle (event, prevAngle, deltaSource) {
|
||
deltaSource = deltaSource || defaultOptions.deltaSource;
|
||
|
||
var sourceX = deltaSource + 'X',
|
||
sourceY = deltaSource + 'Y',
|
||
touches = getTouchPair(event),
|
||
dx = touches[0][sourceX] - touches[1][sourceX],
|
||
dy = touches[0][sourceY] - touches[1][sourceY],
|
||
angle = 180 * Math.atan(dy / dx) / Math.PI;
|
||
|
||
if (isNumber(prevAngle)) {
|
||
var dr = angle - prevAngle,
|
||
drClamped = dr % 360;
|
||
|
||
if (drClamped > 315) {
|
||
angle -= 360 + (angle / 360)|0 * 360;
|
||
}
|
||
else if (drClamped > 135) {
|
||
angle -= 180 + (angle / 360)|0 * 360;
|
||
}
|
||
else if (drClamped < -315) {
|
||
angle += 360 + (angle / 360)|0 * 360;
|
||
}
|
||
else if (drClamped < -135) {
|
||
angle += 180 + (angle / 360)|0 * 360;
|
||
}
|
||
}
|
||
|
||
return angle;
|
||
}
|
||
|
||
function getOriginXY (interactable, element) {
|
||
var origin = interactable
|
||
? interactable.options.origin
|
||
: defaultOptions.origin;
|
||
|
||
if (origin === 'parent') {
|
||
origin = parentElement(element);
|
||
}
|
||
else if (origin === 'self') {
|
||
origin = interactable.getRect(element);
|
||
}
|
||
else if (trySelector(origin)) {
|
||
origin = closest(element, origin) || { x: 0, y: 0 };
|
||
}
|
||
|
||
if (isFunction(origin)) {
|
||
origin = origin(interactable && element);
|
||
}
|
||
|
||
if (isElement(origin)) {
|
||
origin = getElementRect(origin);
|
||
}
|
||
|
||
origin.x = ('x' in origin)? origin.x : origin.left;
|
||
origin.y = ('y' in origin)? origin.y : origin.top;
|
||
|
||
return origin;
|
||
}
|
||
|
||
// http://stackoverflow.com/a/5634528/2280888
|
||
function _getQBezierValue(t, p1, p2, p3) {
|
||
var iT = 1 - t;
|
||
return iT * iT * p1 + 2 * iT * t * p2 + t * t * p3;
|
||
}
|
||
|
||
function getQuadraticCurvePoint(startX, startY, cpX, cpY, endX, endY, position) {
|
||
return {
|
||
x: _getQBezierValue(position, startX, cpX, endX),
|
||
y: _getQBezierValue(position, startY, cpY, endY)
|
||
};
|
||
}
|
||
|
||
// http://gizma.com/easing/
|
||
function easeOutQuad (t, b, c, d) {
|
||
t /= d;
|
||
return -c * t*(t-2) + b;
|
||
}
|
||
|
||
function nodeContains (parent, child) {
|
||
while (child) {
|
||
if (child === parent) {
|
||
return true;
|
||
}
|
||
|
||
child = child.parentNode;
|
||
}
|
||
|
||
return false;
|
||
}
|
||
|
||
function closest (child, selector) {
|
||
var parent = parentElement(child);
|
||
|
||
while (isElement(parent)) {
|
||
if (matchesSelector(parent, selector)) { return parent; }
|
||
|
||
parent = parentElement(parent);
|
||
}
|
||
|
||
return null;
|
||
}
|
||
|
||
function parentElement (node) {
|
||
var parent = node.parentNode;
|
||
|
||
if (isDocFrag(parent)) {
|
||
// skip past #shado-root fragments
|
||
while ((parent = parent.host) && isDocFrag(parent)) {}
|
||
|
||
return parent;
|
||
}
|
||
|
||
return parent;
|
||
}
|
||
|
||
function inContext (interactable, element) {
|
||
return interactable._context === element.ownerDocument
|
||
|| nodeContains(interactable._context, element);
|
||
}
|
||
|
||
function testIgnore (interactable, interactableElement, element) {
|
||
var ignoreFrom = interactable.options.ignoreFrom;
|
||
|
||
if (!ignoreFrom || !isElement(element)) { return false; }
|
||
|
||
if (isString(ignoreFrom)) {
|
||
return matchesUpTo(element, ignoreFrom, interactableElement);
|
||
}
|
||
else if (isElement(ignoreFrom)) {
|
||
return nodeContains(ignoreFrom, element);
|
||
}
|
||
|
||
return false;
|
||
}
|
||
|
||
function testAllow (interactable, interactableElement, element) {
|
||
var allowFrom = interactable.options.allowFrom;
|
||
|
||
if (!allowFrom) { return true; }
|
||
|
||
if (!isElement(element)) { return false; }
|
||
|
||
if (isString(allowFrom)) {
|
||
return matchesUpTo(element, allowFrom, interactableElement);
|
||
}
|
||
else if (isElement(allowFrom)) {
|
||
return nodeContains(allowFrom, element);
|
||
}
|
||
|
||
return false;
|
||
}
|
||
|
||
function checkAxis (axis, interactable) {
|
||
if (!interactable) { return false; }
|
||
|
||
var thisAxis = interactable.options.drag.axis;
|
||
|
||
return (axis === 'xy' || thisAxis === 'xy' || thisAxis === axis);
|
||
}
|
||
|
||
function checkSnap (interactable, action) {
|
||
var options = interactable.options;
|
||
|
||
if (/^resize/.test(action)) {
|
||
action = 'resize';
|
||
}
|
||
|
||
return options[action].snap && options[action].snap.enabled;
|
||
}
|
||
|
||
function checkRestrict (interactable, action) {
|
||
var options = interactable.options;
|
||
|
||
if (/^resize/.test(action)) {
|
||
action = 'resize';
|
||
}
|
||
|
||
return options[action].restrict && options[action].restrict.enabled;
|
||
}
|
||
|
||
function checkAutoScroll (interactable, action) {
|
||
var options = interactable.options;
|
||
|
||
if (/^resize/.test(action)) {
|
||
action = 'resize';
|
||
}
|
||
|
||
return options[action].autoScroll && options[action].autoScroll.enabled;
|
||
}
|
||
|
||
function withinInteractionLimit (interactable, element, action) {
|
||
var options = interactable.options,
|
||
maxActions = options[action.name].max,
|
||
maxPerElement = options[action.name].maxPerElement,
|
||
activeInteractions = 0,
|
||
targetCount = 0,
|
||
targetElementCount = 0;
|
||
|
||
for (var i = 0, len = interactions.length; i < len; i++) {
|
||
var interaction = interactions[i],
|
||
otherAction = interaction.prepared.name,
|
||
active = interaction.interacting();
|
||
|
||
if (!active) { continue; }
|
||
|
||
activeInteractions++;
|
||
|
||
if (activeInteractions >= maxInteractions) {
|
||
return false;
|
||
}
|
||
|
||
if (interaction.target !== interactable) { continue; }
|
||
|
||
targetCount += (otherAction === action.name)|0;
|
||
|
||
if (targetCount >= maxActions) {
|
||
return false;
|
||
}
|
||
|
||
if (interaction.element === element) {
|
||
targetElementCount++;
|
||
|
||
if (otherAction !== action.name || targetElementCount >= maxPerElement) {
|
||
return false;
|
||
}
|
||
}
|
||
}
|
||
|
||
return maxInteractions > 0;
|
||
}
|
||
|
||
// Test for the element that's "above" all other qualifiers
|
||
function indexOfDeepestElement (elements) {
|
||
var dropzone,
|
||
deepestZone = elements[0],
|
||
index = deepestZone? 0: -1,
|
||
parent,
|
||
deepestZoneParents = [],
|
||
dropzoneParents = [],
|
||
child,
|
||
i,
|
||
n;
|
||
|
||
for (i = 1; i < elements.length; i++) {
|
||
dropzone = elements[i];
|
||
|
||
// an element might belong to multiple selector dropzones
|
||
if (!dropzone || dropzone === deepestZone) {
|
||
continue;
|
||
}
|
||
|
||
if (!deepestZone) {
|
||
deepestZone = dropzone;
|
||
index = i;
|
||
continue;
|
||
}
|
||
|
||
// check if the deepest or current are document.documentElement or document.rootElement
|
||
// - if the current dropzone is, do nothing and continue
|
||
if (dropzone.parentNode === dropzone.ownerDocument) {
|
||
continue;
|
||
}
|
||
// - if deepest is, update with the current dropzone and continue to next
|
||
else if (deepestZone.parentNode === dropzone.ownerDocument) {
|
||
deepestZone = dropzone;
|
||
index = i;
|
||
continue;
|
||
}
|
||
|
||
if (!deepestZoneParents.length) {
|
||
parent = deepestZone;
|
||
while (parent.parentNode && parent.parentNode !== parent.ownerDocument) {
|
||
deepestZoneParents.unshift(parent);
|
||
parent = parent.parentNode;
|
||
}
|
||
}
|
||
|
||
// if this element is an svg element and the current deepest is
|
||
// an HTMLElement
|
||
if (deepestZone instanceof HTMLElement
|
||
&& dropzone instanceof SVGElement
|
||
&& !(dropzone instanceof SVGSVGElement)) {
|
||
|
||
if (dropzone === deepestZone.parentNode) {
|
||
continue;
|
||
}
|
||
|
||
parent = dropzone.ownerSVGElement;
|
||
}
|
||
else {
|
||
parent = dropzone;
|
||
}
|
||
|
||
dropzoneParents = [];
|
||
|
||
while (parent.parentNode !== parent.ownerDocument) {
|
||
dropzoneParents.unshift(parent);
|
||
parent = parent.parentNode;
|
||
}
|
||
|
||
n = 0;
|
||
|
||
// get (position of last common ancestor) + 1
|
||
while (dropzoneParents[n] && dropzoneParents[n] === deepestZoneParents[n]) {
|
||
n++;
|
||
}
|
||
|
||
var parents = [
|
||
dropzoneParents[n - 1],
|
||
dropzoneParents[n],
|
||
deepestZoneParents[n]
|
||
];
|
||
|
||
child = parents[0].lastChild;
|
||
|
||
while (child) {
|
||
if (child === parents[1]) {
|
||
deepestZone = dropzone;
|
||
index = i;
|
||
deepestZoneParents = [];
|
||
|
||
break;
|
||
}
|
||
else if (child === parents[2]) {
|
||
break;
|
||
}
|
||
|
||
child = child.previousSibling;
|
||
}
|
||
}
|
||
|
||
return index;
|
||
}
|
||
|
||
function Interaction () {
|
||
this.target = null; // current interactable being interacted with
|
||
this.element = null; // the target element of the interactable
|
||
this.dropTarget = null; // the dropzone a drag target might be dropped into
|
||
this.dropElement = null; // the element at the time of checking
|
||
this.prevDropTarget = null; // the dropzone that was recently dragged away from
|
||
this.prevDropElement = null; // the element at the time of checking
|
||
|
||
this.prepared = { // action that's ready to be fired on next move event
|
||
name : null,
|
||
axis : null,
|
||
edges: null
|
||
};
|
||
|
||
this.matches = []; // all selectors that are matched by target element
|
||
this.matchElements = []; // corresponding elements
|
||
|
||
this.inertiaStatus = {
|
||
active : false,
|
||
smoothEnd : false,
|
||
ending : false,
|
||
|
||
startEvent: null,
|
||
upCoords: {},
|
||
|
||
xe: 0, ye: 0,
|
||
sx: 0, sy: 0,
|
||
|
||
t0: 0,
|
||
vx0: 0, vys: 0,
|
||
duration: 0,
|
||
|
||
resumeDx: 0,
|
||
resumeDy: 0,
|
||
|
||
lambda_v0: 0,
|
||
one_ve_v0: 0,
|
||
i : null
|
||
};
|
||
|
||
if (isFunction(Function.prototype.bind)) {
|
||
this.boundInertiaFrame = this.inertiaFrame.bind(this);
|
||
this.boundSmoothEndFrame = this.smoothEndFrame.bind(this);
|
||
}
|
||
else {
|
||
var that = this;
|
||
|
||
this.boundInertiaFrame = function () { return that.inertiaFrame(); };
|
||
this.boundSmoothEndFrame = function () { return that.smoothEndFrame(); };
|
||
}
|
||
|
||
this.activeDrops = {
|
||
dropzones: [], // the dropzones that are mentioned below
|
||
elements : [], // elements of dropzones that accept the target draggable
|
||
rects : [] // the rects of the elements mentioned above
|
||
};
|
||
|
||
// keep track of added pointers
|
||
this.pointers = [];
|
||
this.pointerIds = [];
|
||
this.downTargets = [];
|
||
this.downTimes = [];
|
||
this.holdTimers = [];
|
||
|
||
// Previous native pointer move event coordinates
|
||
this.prevCoords = {
|
||
page : { x: 0, y: 0 },
|
||
client : { x: 0, y: 0 },
|
||
timeStamp: 0
|
||
};
|
||
// current native pointer move event coordinates
|
||
this.curCoords = {
|
||
page : { x: 0, y: 0 },
|
||
client : { x: 0, y: 0 },
|
||
timeStamp: 0
|
||
};
|
||
|
||
// Starting InteractEvent pointer coordinates
|
||
this.startCoords = {
|
||
page : { x: 0, y: 0 },
|
||
client : { x: 0, y: 0 },
|
||
timeStamp: 0
|
||
};
|
||
|
||
// Change in coordinates and time of the pointer
|
||
this.pointerDelta = {
|
||
page : { x: 0, y: 0, vx: 0, vy: 0, speed: 0 },
|
||
client : { x: 0, y: 0, vx: 0, vy: 0, speed: 0 },
|
||
timeStamp: 0
|
||
};
|
||
|
||
this.downEvent = null; // pointerdown/mousedown/touchstart event
|
||
this.downPointer = {};
|
||
|
||
this._eventTarget = null;
|
||
this._curEventTarget = null;
|
||
|
||
this.prevEvent = null; // previous action event
|
||
this.tapTime = 0; // time of the most recent tap event
|
||
this.prevTap = null;
|
||
|
||
this.startOffset = { left: 0, right: 0, top: 0, bottom: 0 };
|
||
this.restrictOffset = { left: 0, right: 0, top: 0, bottom: 0 };
|
||
this.snapOffsets = [];
|
||
|
||
this.gesture = {
|
||
start: { x: 0, y: 0 },
|
||
|
||
startDistance: 0, // distance between two touches of touchStart
|
||
prevDistance : 0,
|
||
distance : 0,
|
||
|
||
scale: 1, // gesture.distance / gesture.startDistance
|
||
|
||
startAngle: 0, // angle of line joining two touches
|
||
prevAngle : 0 // angle of the previous gesture event
|
||
};
|
||
|
||
this.snapStatus = {
|
||
x : 0, y : 0,
|
||
dx : 0, dy : 0,
|
||
realX : 0, realY : 0,
|
||
snappedX: 0, snappedY: 0,
|
||
targets : [],
|
||
locked : false,
|
||
changed : false
|
||
};
|
||
|
||
this.restrictStatus = {
|
||
dx : 0, dy : 0,
|
||
restrictedX: 0, restrictedY: 0,
|
||
snap : null,
|
||
restricted : false,
|
||
changed : false
|
||
};
|
||
|
||
this.restrictStatus.snap = this.snapStatus;
|
||
|
||
this.pointerIsDown = false;
|
||
this.pointerWasMoved = false;
|
||
this.gesturing = false;
|
||
this.dragging = false;
|
||
this.resizing = false;
|
||
this.resizeAxes = 'xy';
|
||
|
||
this.mouse = false;
|
||
|
||
interactions.push(this);
|
||
}
|
||
|
||
Interaction.prototype = {
|
||
getPageXY : function (pointer, xy) { return getPageXY(pointer, xy, this); },
|
||
getClientXY: function (pointer, xy) { return getClientXY(pointer, xy, this); },
|
||
setEventXY : function (target, ptr) { return setEventXY(target, ptr, this); },
|
||
|
||
pointerOver: function (pointer, event, eventTarget) {
|
||
if (this.prepared.name || !this.mouse) { return; }
|
||
|
||
var curMatches = [],
|
||
curMatchElements = [],
|
||
prevTargetElement = this.element;
|
||
|
||
this.addPointer(pointer);
|
||
|
||
if (this.target
|
||
&& (testIgnore(this.target, this.element, eventTarget)
|
||
|| !testAllow(this.target, this.element, eventTarget))) {
|
||
// if the eventTarget should be ignored or shouldn't be allowed
|
||
// clear the previous target
|
||
this.target = null;
|
||
this.element = null;
|
||
this.matches = [];
|
||
this.matchElements = [];
|
||
}
|
||
|
||
var elementInteractable = interactables.get(eventTarget),
|
||
elementAction = (elementInteractable
|
||
&& !testIgnore(elementInteractable, eventTarget, eventTarget)
|
||
&& testAllow(elementInteractable, eventTarget, eventTarget)
|
||
&& validateAction(
|
||
elementInteractable.getAction(pointer, event, this, eventTarget),
|
||
elementInteractable));
|
||
|
||
if (elementAction && !withinInteractionLimit(elementInteractable, eventTarget, elementAction)) {
|
||
elementAction = null;
|
||
}
|
||
|
||
function pushCurMatches (interactable, selector) {
|
||
if (interactable
|
||
&& inContext(interactable, eventTarget)
|
||
&& !testIgnore(interactable, eventTarget, eventTarget)
|
||
&& testAllow(interactable, eventTarget, eventTarget)
|
||
&& matchesSelector(eventTarget, selector)) {
|
||
|
||
curMatches.push(interactable);
|
||
curMatchElements.push(eventTarget);
|
||
}
|
||
}
|
||
|
||
if (elementAction) {
|
||
this.target = elementInteractable;
|
||
this.element = eventTarget;
|
||
this.matches = [];
|
||
this.matchElements = [];
|
||
}
|
||
else {
|
||
interactables.forEachSelector(pushCurMatches);
|
||
|
||
if (this.validateSelector(pointer, event, curMatches, curMatchElements)) {
|
||
this.matches = curMatches;
|
||
this.matchElements = curMatchElements;
|
||
|
||
this.pointerHover(pointer, event, this.matches, this.matchElements);
|
||
events.add(eventTarget,
|
||
supportsPointerEvent? pEventTypes.move : 'mousemove',
|
||
listeners.pointerHover);
|
||
}
|
||
else if (this.target) {
|
||
if (nodeContains(prevTargetElement, eventTarget)) {
|
||
this.pointerHover(pointer, event, this.matches, this.matchElements);
|
||
events.add(this.element,
|
||
supportsPointerEvent? pEventTypes.move : 'mousemove',
|
||
listeners.pointerHover);
|
||
}
|
||
else {
|
||
this.target = null;
|
||
this.element = null;
|
||
this.matches = [];
|
||
this.matchElements = [];
|
||
}
|
||
}
|
||
}
|
||
},
|
||
|
||
// Check what action would be performed on pointerMove target if a mouse
|
||
// button were pressed and change the cursor accordingly
|
||
pointerHover: function (pointer, event, eventTarget, curEventTarget, matches, matchElements) {
|
||
var target = this.target;
|
||
|
||
if (!this.prepared.name && this.mouse) {
|
||
|
||
var action;
|
||
|
||
// update pointer coords for defaultActionChecker to use
|
||
this.setEventXY(this.curCoords, [pointer]);
|
||
|
||
if (matches) {
|
||
action = this.validateSelector(pointer, event, matches, matchElements);
|
||
}
|
||
else if (target) {
|
||
action = validateAction(target.getAction(this.pointers[0], event, this, this.element), this.target);
|
||
}
|
||
|
||
if (target && target.options.styleCursor) {
|
||
if (action) {
|
||
target._doc.documentElement.style.cursor = getActionCursor(action);
|
||
}
|
||
else {
|
||
target._doc.documentElement.style.cursor = '';
|
||
}
|
||
}
|
||
}
|
||
else if (this.prepared.name) {
|
||
this.checkAndPreventDefault(event, target, this.element);
|
||
}
|
||
},
|
||
|
||
pointerOut: function (pointer, event, eventTarget) {
|
||
if (this.prepared.name) { return; }
|
||
|
||
// Remove temporary event listeners for selector Interactables
|
||
if (!interactables.get(eventTarget)) {
|
||
events.remove(eventTarget,
|
||
supportsPointerEvent? pEventTypes.move : 'mousemove',
|
||
listeners.pointerHover);
|
||
}
|
||
|
||
if (this.target && this.target.options.styleCursor && !this.interacting()) {
|
||
this.target._doc.documentElement.style.cursor = '';
|
||
}
|
||
},
|
||
|
||
selectorDown: function (pointer, event, eventTarget, curEventTarget) {
|
||
var that = this,
|
||
// copy event to be used in timeout for IE8
|
||
eventCopy = events.useAttachEvent? extend({}, event) : event,
|
||
element = eventTarget,
|
||
pointerIndex = this.addPointer(pointer),
|
||
action;
|
||
|
||
this.holdTimers[pointerIndex] = setTimeout(function () {
|
||
that.pointerHold(events.useAttachEvent? eventCopy : pointer, eventCopy, eventTarget, curEventTarget);
|
||
}, defaultOptions._holdDuration);
|
||
|
||
this.pointerIsDown = true;
|
||
|
||
// Check if the down event hits the current inertia target
|
||
if (this.inertiaStatus.active && this.target.selector) {
|
||
// climb up the DOM tree from the event target
|
||
while (isElement(element)) {
|
||
|
||
// if this element is the current inertia target element
|
||
if (element === this.element
|
||
// and the prospective action is the same as the ongoing one
|
||
&& validateAction(this.target.getAction(pointer, event, this, this.element), this.target).name === this.prepared.name) {
|
||
|
||
// stop inertia so that the next move will be a normal one
|
||
cancelFrame(this.inertiaStatus.i);
|
||
this.inertiaStatus.active = false;
|
||
|
||
this.collectEventTargets(pointer, event, eventTarget, 'down');
|
||
return;
|
||
}
|
||
element = parentElement(element);
|
||
}
|
||
}
|
||
|
||
// do nothing if interacting
|
||
if (this.interacting()) {
|
||
this.collectEventTargets(pointer, event, eventTarget, 'down');
|
||
return;
|
||
}
|
||
|
||
function pushMatches (interactable, selector, context) {
|
||
var elements = ie8MatchesSelector
|
||
? context.querySelectorAll(selector)
|
||
: undefined;
|
||
|
||
if (inContext(interactable, element)
|
||
&& !testIgnore(interactable, element, eventTarget)
|
||
&& testAllow(interactable, element, eventTarget)
|
||
&& matchesSelector(element, selector, elements)) {
|
||
|
||
that.matches.push(interactable);
|
||
that.matchElements.push(element);
|
||
}
|
||
}
|
||
|
||
// update pointer coords for defaultActionChecker to use
|
||
this.setEventXY(this.curCoords, [pointer]);
|
||
this.downEvent = event;
|
||
|
||
while (isElement(element) && !action) {
|
||
this.matches = [];
|
||
this.matchElements = [];
|
||
|
||
interactables.forEachSelector(pushMatches);
|
||
|
||
action = this.validateSelector(pointer, event, this.matches, this.matchElements);
|
||
element = parentElement(element);
|
||
}
|
||
|
||
if (action) {
|
||
this.prepared.name = action.name;
|
||
this.prepared.axis = action.axis;
|
||
this.prepared.edges = action.edges;
|
||
|
||
this.collectEventTargets(pointer, event, eventTarget, 'down');
|
||
|
||
return this.pointerDown(pointer, event, eventTarget, curEventTarget, action);
|
||
}
|
||
else {
|
||
// do these now since pointerDown isn't being called from here
|
||
this.downTimes[pointerIndex] = new Date().getTime();
|
||
this.downTargets[pointerIndex] = eventTarget;
|
||
pointerExtend(this.downPointer, pointer);
|
||
|
||
copyCoords(this.prevCoords, this.curCoords);
|
||
this.pointerWasMoved = false;
|
||
}
|
||
|
||
this.collectEventTargets(pointer, event, eventTarget, 'down');
|
||
},
|
||
|
||
// Determine action to be performed on next pointerMove and add appropriate
|
||
// style and event Listeners
|
||
pointerDown: function (pointer, event, eventTarget, curEventTarget, forceAction) {
|
||
if (!forceAction && !this.inertiaStatus.active && this.pointerWasMoved && this.prepared.name) {
|
||
this.checkAndPreventDefault(event, this.target, this.element);
|
||
|
||
return;
|
||
}
|
||
|
||
this.pointerIsDown = true;
|
||
this.downEvent = event;
|
||
|
||
var pointerIndex = this.addPointer(pointer),
|
||
action;
|
||
|
||
// If it is the second touch of a multi-touch gesture, keep the
|
||
// target the same and get a new action if a target was set by the
|
||
// first touch
|
||
if (this.pointerIds.length > 1 && this.target._element === this.element) {
|
||
var newAction = validateAction(forceAction || this.target.getAction(pointer, event, this, this.element), this.target);
|
||
|
||
if (withinInteractionLimit(this.target, this.element, newAction)) {
|
||
action = newAction;
|
||
}
|
||
|
||
this.prepared.name = null;
|
||
}
|
||
// Otherwise, set the target if there is no action prepared
|
||
else if (!this.prepared.name) {
|
||
var interactable = interactables.get(curEventTarget);
|
||
|
||
if (interactable
|
||
&& !testIgnore(interactable, curEventTarget, eventTarget)
|
||
&& testAllow(interactable, curEventTarget, eventTarget)
|
||
&& (action = validateAction(forceAction || interactable.getAction(pointer, event, this, curEventTarget), interactable, eventTarget))
|
||
&& withinInteractionLimit(interactable, curEventTarget, action)) {
|
||
this.target = interactable;
|
||
this.element = curEventTarget;
|
||
}
|
||
}
|
||
|
||
var target = this.target,
|
||
options = target && target.options;
|
||
|
||
if (target && (forceAction || !this.prepared.name)) {
|
||
action = action || validateAction(forceAction || target.getAction(pointer, event, this, curEventTarget), target, this.element);
|
||
|
||
this.setEventXY(this.startCoords, this.pointers);
|
||
|
||
if (!action) { return; }
|
||
|
||
if (options.styleCursor) {
|
||
target._doc.documentElement.style.cursor = getActionCursor(action);
|
||
}
|
||
|
||
this.resizeAxes = action.name === 'resize'? action.axis : null;
|
||
|
||
if (action === 'gesture' && this.pointerIds.length < 2) {
|
||
action = null;
|
||
}
|
||
|
||
this.prepared.name = action.name;
|
||
this.prepared.axis = action.axis;
|
||
this.prepared.edges = action.edges;
|
||
|
||
this.snapStatus.snappedX = this.snapStatus.snappedY =
|
||
this.restrictStatus.restrictedX = this.restrictStatus.restrictedY = NaN;
|
||
|
||
this.downTimes[pointerIndex] = new Date().getTime();
|
||
this.downTargets[pointerIndex] = eventTarget;
|
||
pointerExtend(this.downPointer, pointer);
|
||
|
||
copyCoords(this.prevCoords, this.startCoords);
|
||
this.pointerWasMoved = false;
|
||
|
||
this.checkAndPreventDefault(event, target, this.element);
|
||
}
|
||
// if inertia is active try to resume action
|
||
else if (this.inertiaStatus.active
|
||
&& curEventTarget === this.element
|
||
&& validateAction(target.getAction(pointer, event, this, this.element), target).name === this.prepared.name) {
|
||
|
||
cancelFrame(this.inertiaStatus.i);
|
||
this.inertiaStatus.active = false;
|
||
|
||
this.checkAndPreventDefault(event, target, this.element);
|
||
}
|
||
},
|
||
|
||
setModifications: function (coords, preEnd) {
|
||
var target = this.target,
|
||
shouldMove = true,
|
||
shouldSnap = checkSnap(target, this.prepared.name) && (!target.options[this.prepared.name].snap.endOnly || preEnd),
|
||
shouldRestrict = checkRestrict(target, this.prepared.name) && (!target.options[this.prepared.name].restrict.endOnly || preEnd);
|
||
|
||
if (shouldSnap ) { this.setSnapping (coords); } else { this.snapStatus .locked = false; }
|
||
if (shouldRestrict) { this.setRestriction(coords); } else { this.restrictStatus.restricted = false; }
|
||
|
||
if (shouldSnap && this.snapStatus.locked && !this.snapStatus.changed) {
|
||
shouldMove = shouldRestrict && this.restrictStatus.restricted && this.restrictStatus.changed;
|
||
}
|
||
else if (shouldRestrict && this.restrictStatus.restricted && !this.restrictStatus.changed) {
|
||
shouldMove = false;
|
||
}
|
||
|
||
return shouldMove;
|
||
},
|
||
|
||
setStartOffsets: function (action, interactable, element) {
|
||
var rect = interactable.getRect(element),
|
||
origin = getOriginXY(interactable, element),
|
||
snap = interactable.options[this.prepared.name].snap,
|
||
restrict = interactable.options[this.prepared.name].restrict,
|
||
width, height;
|
||
|
||
if (rect) {
|
||
this.startOffset.left = this.startCoords.page.x - rect.left;
|
||
this.startOffset.top = this.startCoords.page.y - rect.top;
|
||
|
||
this.startOffset.right = rect.right - this.startCoords.page.x;
|
||
this.startOffset.bottom = rect.bottom - this.startCoords.page.y;
|
||
|
||
if ('width' in rect) { width = rect.width; }
|
||
else { width = rect.right - rect.left; }
|
||
if ('height' in rect) { height = rect.height; }
|
||
else { height = rect.bottom - rect.top; }
|
||
}
|
||
else {
|
||
this.startOffset.left = this.startOffset.top = this.startOffset.right = this.startOffset.bottom = 0;
|
||
}
|
||
|
||
this.snapOffsets.splice(0);
|
||
|
||
var snapOffset = snap && snap.offset === 'startCoords'
|
||
? {
|
||
x: this.startCoords.page.x - origin.x,
|
||
y: this.startCoords.page.y - origin.y
|
||
}
|
||
: snap && snap.offset || { x: 0, y: 0 };
|
||
|
||
if (rect && snap && snap.relativePoints && snap.relativePoints.length) {
|
||
for (var i = 0; i < snap.relativePoints.length; i++) {
|
||
this.snapOffsets.push({
|
||
x: this.startOffset.left - (width * snap.relativePoints[i].x) + snapOffset.x,
|
||
y: this.startOffset.top - (height * snap.relativePoints[i].y) + snapOffset.y
|
||
});
|
||
}
|
||
}
|
||
else {
|
||
this.snapOffsets.push(snapOffset);
|
||
}
|
||
|
||
if (rect && restrict.elementRect) {
|
||
this.restrictOffset.left = this.startOffset.left - (width * restrict.elementRect.left);
|
||
this.restrictOffset.top = this.startOffset.top - (height * restrict.elementRect.top);
|
||
|
||
this.restrictOffset.right = this.startOffset.right - (width * (1 - restrict.elementRect.right));
|
||
this.restrictOffset.bottom = this.startOffset.bottom - (height * (1 - restrict.elementRect.bottom));
|
||
}
|
||
else {
|
||
this.restrictOffset.left = this.restrictOffset.top = this.restrictOffset.right = this.restrictOffset.bottom = 0;
|
||
}
|
||
},
|
||
|
||
/*\
|
||
* Interaction.start
|
||
[ method ]
|
||
*
|
||
* Start an action with the given Interactable and Element as tartgets. The
|
||
* action must be enabled for the target Interactable and an appropriate number
|
||
* of pointers must be held down – 1 for drag/resize, 2 for gesture.
|
||
*
|
||
* Use it with `interactable.<action>able({ manualStart: false })` to always
|
||
* [start actions manually](https://github.com/taye/interact.js/issues/114)
|
||
*
|
||
- action (object) The action to be performed - drag, resize, etc.
|
||
- interactable (Interactable) The Interactable to target
|
||
- element (Element) The DOM Element to target
|
||
= (object) interact
|
||
**
|
||
| interact(target)
|
||
| .draggable({
|
||
| // disable the default drag start by down->move
|
||
| manualStart: true
|
||
| })
|
||
| // start dragging after the user holds the pointer down
|
||
| .on('hold', function (event) {
|
||
| var interaction = event.interaction;
|
||
|
|
||
| if (!interaction.interacting()) {
|
||
| interaction.start({ name: 'drag' },
|
||
| event.interactable,
|
||
| event.currentTarget);
|
||
| }
|
||
| });
|
||
\*/
|
||
start: function (action, interactable, element) {
|
||
if (this.interacting()
|
||
|| !this.pointerIsDown
|
||
|| this.pointerIds.length < (action.name === 'gesture'? 2 : 1)) {
|
||
return;
|
||
}
|
||
|
||
// if this interaction had been removed after stopping
|
||
// add it back
|
||
if (indexOf(interactions, this) === -1) {
|
||
interactions.push(this);
|
||
}
|
||
|
||
// set the startCoords if there was no prepared action
|
||
if (!this.prepared.name) {
|
||
this.setEventXY(this.startCoords, this.pointers);
|
||
}
|
||
|
||
this.prepared.name = action.name;
|
||
this.prepared.axis = action.axis;
|
||
this.prepared.edges = action.edges;
|
||
this.target = interactable;
|
||
this.element = element;
|
||
|
||
this.setStartOffsets(action.name, interactable, element);
|
||
this.setModifications(this.startCoords.page);
|
||
|
||
this.prevEvent = this[this.prepared.name + 'Start'](this.downEvent);
|
||
},
|
||
|
||
pointerMove: function (pointer, event, eventTarget, curEventTarget, preEnd) {
|
||
if (this.inertiaStatus.active) {
|
||
var pageUp = this.inertiaStatus.upCoords.page;
|
||
var clientUp = this.inertiaStatus.upCoords.client;
|
||
|
||
var inertiaPosition = {
|
||
pageX : pageUp.x + this.inertiaStatus.sx,
|
||
pageY : pageUp.y + this.inertiaStatus.sy,
|
||
clientX: clientUp.x + this.inertiaStatus.sx,
|
||
clientY: clientUp.y + this.inertiaStatus.sy
|
||
};
|
||
|
||
this.setEventXY(this.curCoords, [inertiaPosition]);
|
||
}
|
||
else {
|
||
this.recordPointer(pointer);
|
||
this.setEventXY(this.curCoords, this.pointers);
|
||
}
|
||
|
||
var duplicateMove = (this.curCoords.page.x === this.prevCoords.page.x
|
||
&& this.curCoords.page.y === this.prevCoords.page.y
|
||
&& this.curCoords.client.x === this.prevCoords.client.x
|
||
&& this.curCoords.client.y === this.prevCoords.client.y);
|
||
|
||
var dx, dy,
|
||
pointerIndex = this.mouse? 0 : indexOf(this.pointerIds, getPointerId(pointer));
|
||
|
||
// register movement greater than pointerMoveTolerance
|
||
if (this.pointerIsDown && !this.pointerWasMoved) {
|
||
dx = this.curCoords.client.x - this.startCoords.client.x;
|
||
dy = this.curCoords.client.y - this.startCoords.client.y;
|
||
|
||
this.pointerWasMoved = hypot(dx, dy) > pointerMoveTolerance;
|
||
}
|
||
|
||
if (!duplicateMove && (!this.pointerIsDown || this.pointerWasMoved)) {
|
||
if (this.pointerIsDown) {
|
||
clearTimeout(this.holdTimers[pointerIndex]);
|
||
}
|
||
|
||
this.collectEventTargets(pointer, event, eventTarget, 'move');
|
||
}
|
||
|
||
if (!this.pointerIsDown) { return; }
|
||
|
||
if (duplicateMove && this.pointerWasMoved && !preEnd) {
|
||
this.checkAndPreventDefault(event, this.target, this.element);
|
||
return;
|
||
}
|
||
|
||
// set pointer coordinate, time changes and speeds
|
||
setEventDeltas(this.pointerDelta, this.prevCoords, this.curCoords);
|
||
|
||
if (!this.prepared.name) { return; }
|
||
|
||
if (this.pointerWasMoved
|
||
// ignore movement while inertia is active
|
||
&& (!this.inertiaStatus.active || (pointer instanceof InteractEvent && /inertiastart/.test(pointer.type)))) {
|
||
|
||
// if just starting an action, calculate the pointer speed now
|
||
if (!this.interacting()) {
|
||
setEventDeltas(this.pointerDelta, this.prevCoords, this.curCoords);
|
||
|
||
// check if a drag is in the correct axis
|
||
if (this.prepared.name === 'drag') {
|
||
var absX = Math.abs(dx),
|
||
absY = Math.abs(dy),
|
||
targetAxis = this.target.options.drag.axis,
|
||
axis = (absX > absY ? 'x' : absX < absY ? 'y' : 'xy');
|
||
|
||
// if the movement isn't in the axis of the interactable
|
||
if (axis !== 'xy' && targetAxis !== 'xy' && targetAxis !== axis) {
|
||
// cancel the prepared action
|
||
this.prepared.name = null;
|
||
|
||
// then try to get a drag from another ineractable
|
||
|
||
var element = eventTarget;
|
||
|
||
// check element interactables
|
||
while (isElement(element)) {
|
||
var elementInteractable = interactables.get(element);
|
||
|
||
if (elementInteractable
|
||
&& elementInteractable !== this.target
|
||
&& !elementInteractable.options.drag.manualStart
|
||
&& elementInteractable.getAction(this.downPointer, this.downEvent, this, element).name === 'drag'
|
||
&& checkAxis(axis, elementInteractable)) {
|
||
|
||
this.prepared.name = 'drag';
|
||
this.target = elementInteractable;
|
||
this.element = element;
|
||
break;
|
||
}
|
||
|
||
element = parentElement(element);
|
||
}
|
||
|
||
// if there's no drag from element interactables,
|
||
// check the selector interactables
|
||
if (!this.prepared.name) {
|
||
var thisInteraction = this;
|
||
|
||
var getDraggable = function (interactable, selector, context) {
|
||
var elements = ie8MatchesSelector
|
||
? context.querySelectorAll(selector)
|
||
: undefined;
|
||
|
||
if (interactable === thisInteraction.target) { return; }
|
||
|
||
if (inContext(interactable, eventTarget)
|
||
&& !interactable.options.drag.manualStart
|
||
&& !testIgnore(interactable, element, eventTarget)
|
||
&& testAllow(interactable, element, eventTarget)
|
||
&& matchesSelector(element, selector, elements)
|
||
&& interactable.getAction(thisInteraction.downPointer, thisInteraction.downEvent, thisInteraction, element).name === 'drag'
|
||
&& checkAxis(axis, interactable)
|
||
&& withinInteractionLimit(interactable, element, 'drag')) {
|
||
|
||
return interactable;
|
||
}
|
||
};
|
||
|
||
element = eventTarget;
|
||
|
||
while (isElement(element)) {
|
||
var selectorInteractable = interactables.forEachSelector(getDraggable);
|
||
|
||
if (selectorInteractable) {
|
||
this.prepared.name = 'drag';
|
||
this.target = selectorInteractable;
|
||
this.element = element;
|
||
break;
|
||
}
|
||
|
||
element = parentElement(element);
|
||
}
|
||
}
|
||
}
|
||
}
|
||
}
|
||
|
||
var starting = !!this.prepared.name && !this.interacting();
|
||
|
||
if (starting
|
||
&& (this.target.options[this.prepared.name].manualStart
|
||
|| !withinInteractionLimit(this.target, this.element, this.prepared))) {
|
||
this.stop(event);
|
||
return;
|
||
}
|
||
|
||
if (this.prepared.name && this.target) {
|
||
if (starting) {
|
||
this.start(this.prepared, this.target, this.element);
|
||
}
|
||
|
||
var shouldMove = this.setModifications(this.curCoords.page, preEnd);
|
||
|
||
// move if snapping or restriction doesn't prevent it
|
||
if (shouldMove || starting) {
|
||
this.prevEvent = this[this.prepared.name + 'Move'](event);
|
||
}
|
||
|
||
this.checkAndPreventDefault(event, this.target, this.element);
|
||
}
|
||
}
|
||
|
||
copyCoords(this.prevCoords, this.curCoords);
|
||
|
||
if (this.dragging || this.resizing) {
|
||
this.autoScrollMove(pointer);
|
||
}
|
||
},
|
||
|
||
dragStart: function (event) {
|
||
var dragEvent = new InteractEvent(this, event, 'drag', 'start', this.element);
|
||
|
||
this.dragging = true;
|
||
this.target.fire(dragEvent);
|
||
|
||
// reset active dropzones
|
||
this.activeDrops.dropzones = [];
|
||
this.activeDrops.elements = [];
|
||
this.activeDrops.rects = [];
|
||
|
||
if (!this.dynamicDrop) {
|
||
this.setActiveDrops(this.element);
|
||
}
|
||
|
||
var dropEvents = this.getDropEvents(event, dragEvent);
|
||
|
||
if (dropEvents.activate) {
|
||
this.fireActiveDrops(dropEvents.activate);
|
||
}
|
||
|
||
return dragEvent;
|
||
},
|
||
|
||
dragMove: function (event) {
|
||
var target = this.target,
|
||
dragEvent = new InteractEvent(this, event, 'drag', 'move', this.element),
|
||
draggableElement = this.element,
|
||
drop = this.getDrop(dragEvent, event, draggableElement);
|
||
|
||
this.dropTarget = drop.dropzone;
|
||
this.dropElement = drop.element;
|
||
|
||
var dropEvents = this.getDropEvents(event, dragEvent);
|
||
|
||
target.fire(dragEvent);
|
||
|
||
if (dropEvents.leave) { this.prevDropTarget.fire(dropEvents.leave); }
|
||
if (dropEvents.enter) { this.dropTarget.fire(dropEvents.enter); }
|
||
if (dropEvents.move ) { this.dropTarget.fire(dropEvents.move ); }
|
||
|
||
this.prevDropTarget = this.dropTarget;
|
||
this.prevDropElement = this.dropElement;
|
||
|
||
return dragEvent;
|
||
},
|
||
|
||
resizeStart: function (event) {
|
||
var resizeEvent = new InteractEvent(this, event, 'resize', 'start', this.element);
|
||
|
||
if (this.prepared.edges) {
|
||
var startRect = this.target.getRect(this.element);
|
||
|
||
/*
|
||
* When using the `resizable.square` or `resizable.preserveAspectRatio` options, resizing from one edge
|
||
* will affect another. E.g. with `resizable.square`, resizing to make the right edge larger will make
|
||
* the bottom edge larger by the same amount. We call these 'linked' edges. Any linked edges will depend
|
||
* on the active edges and the edge being interacted with.
|
||
*/
|
||
if (this.target.options.resize.square || this.target.options.resize.preserveAspectRatio) {
|
||
var linkedEdges = extend({}, this.prepared.edges);
|
||
|
||
linkedEdges.top = linkedEdges.top || (linkedEdges.left && !linkedEdges.bottom);
|
||
linkedEdges.left = linkedEdges.left || (linkedEdges.top && !linkedEdges.right );
|
||
linkedEdges.bottom = linkedEdges.bottom || (linkedEdges.right && !linkedEdges.top );
|
||
linkedEdges.right = linkedEdges.right || (linkedEdges.bottom && !linkedEdges.left );
|
||
|
||
this.prepared._linkedEdges = linkedEdges;
|
||
}
|
||
else {
|
||
this.prepared._linkedEdges = null;
|
||
}
|
||
|
||
// if using `resizable.preserveAspectRatio` option, record aspect ratio at the start of the resize
|
||
if (this.target.options.resize.preserveAspectRatio) {
|
||
this.resizeStartAspectRatio = startRect.width / startRect.height;
|
||
}
|
||
|
||
this.resizeRects = {
|
||
start : startRect,
|
||
current : extend({}, startRect),
|
||
restricted: extend({}, startRect),
|
||
previous : extend({}, startRect),
|
||
delta : {
|
||
left: 0, right : 0, width : 0,
|
||
top : 0, bottom: 0, height: 0
|
||
}
|
||
};
|
||
|
||
resizeEvent.rect = this.resizeRects.restricted;
|
||
resizeEvent.deltaRect = this.resizeRects.delta;
|
||
}
|
||
|
||
this.target.fire(resizeEvent);
|
||
|
||
this.resizing = true;
|
||
|
||
return resizeEvent;
|
||
},
|
||
|
||
resizeMove: function (event) {
|
||
var resizeEvent = new InteractEvent(this, event, 'resize', 'move', this.element);
|
||
|
||
var edges = this.prepared.edges,
|
||
invert = this.target.options.resize.invert,
|
||
invertible = invert === 'reposition' || invert === 'negate';
|
||
|
||
if (edges) {
|
||
var dx = resizeEvent.dx,
|
||
dy = resizeEvent.dy,
|
||
|
||
start = this.resizeRects.start,
|
||
current = this.resizeRects.current,
|
||
restricted = this.resizeRects.restricted,
|
||
delta = this.resizeRects.delta,
|
||
previous = extend(this.resizeRects.previous, restricted),
|
||
|
||
originalEdges = edges;
|
||
|
||
// `resize.preserveAspectRatio` takes precedence over `resize.square`
|
||
if (this.target.options.resize.preserveAspectRatio) {
|
||
var resizeStartAspectRatio = this.resizeStartAspectRatio;
|
||
|
||
edges = this.prepared._linkedEdges;
|
||
|
||
if ((originalEdges.left && originalEdges.bottom)
|
||
|| (originalEdges.right && originalEdges.top)) {
|
||
dy = -dx / resizeStartAspectRatio;
|
||
}
|
||
else if (originalEdges.left || originalEdges.right) { dy = dx / resizeStartAspectRatio; }
|
||
else if (originalEdges.top || originalEdges.bottom) { dx = dy * resizeStartAspectRatio; }
|
||
}
|
||
else if (this.target.options.resize.square) {
|
||
edges = this.prepared._linkedEdges;
|
||
|
||
if ((originalEdges.left && originalEdges.bottom)
|
||
|| (originalEdges.right && originalEdges.top)) {
|
||
dy = -dx;
|
||
}
|
||
else if (originalEdges.left || originalEdges.right) { dy = dx; }
|
||
else if (originalEdges.top || originalEdges.bottom) { dx = dy; }
|
||
}
|
||
|
||
// update the 'current' rect without modifications
|
||
if (edges.top ) { current.top += dy; }
|
||
if (edges.bottom) { current.bottom += dy; }
|
||
if (edges.left ) { current.left += dx; }
|
||
if (edges.right ) { current.right += dx; }
|
||
|
||
if (invertible) {
|
||
// if invertible, copy the current rect
|
||
extend(restricted, current);
|
||
|
||
if (invert === 'reposition') {
|
||
// swap edge values if necessary to keep width/height positive
|
||
var swap;
|
||
|
||
if (restricted.top > restricted.bottom) {
|
||
swap = restricted.top;
|
||
|
||
restricted.top = restricted.bottom;
|
||
restricted.bottom = swap;
|
||
}
|
||
if (restricted.left > restricted.right) {
|
||
swap = restricted.left;
|
||
|
||
restricted.left = restricted.right;
|
||
restricted.right = swap;
|
||
}
|
||
}
|
||
}
|
||
else {
|
||
// if not invertible, restrict to minimum of 0x0 rect
|
||
restricted.top = Math.min(current.top, start.bottom);
|
||
restricted.bottom = Math.max(current.bottom, start.top);
|
||
restricted.left = Math.min(current.left, start.right);
|
||
restricted.right = Math.max(current.right, start.left);
|
||
}
|
||
|
||
restricted.width = restricted.right - restricted.left;
|
||
restricted.height = restricted.bottom - restricted.top ;
|
||
|
||
for (var edge in restricted) {
|
||
delta[edge] = restricted[edge] - previous[edge];
|
||
}
|
||
|
||
resizeEvent.edges = this.prepared.edges;
|
||
resizeEvent.rect = restricted;
|
||
resizeEvent.deltaRect = delta;
|
||
}
|
||
|
||
this.target.fire(resizeEvent);
|
||
|
||
return resizeEvent;
|
||
},
|
||
|
||
gestureStart: function (event) {
|
||
var gestureEvent = new InteractEvent(this, event, 'gesture', 'start', this.element);
|
||
|
||
gestureEvent.ds = 0;
|
||
|
||
this.gesture.startDistance = this.gesture.prevDistance = gestureEvent.distance;
|
||
this.gesture.startAngle = this.gesture.prevAngle = gestureEvent.angle;
|
||
this.gesture.scale = 1;
|
||
|
||
this.gesturing = true;
|
||
|
||
this.target.fire(gestureEvent);
|
||
|
||
return gestureEvent;
|
||
},
|
||
|
||
gestureMove: function (event) {
|
||
if (!this.pointerIds.length) {
|
||
return this.prevEvent;
|
||
}
|
||
|
||
var gestureEvent;
|
||
|
||
gestureEvent = new InteractEvent(this, event, 'gesture', 'move', this.element);
|
||
gestureEvent.ds = gestureEvent.scale - this.gesture.scale;
|
||
|
||
this.target.fire(gestureEvent);
|
||
|
||
this.gesture.prevAngle = gestureEvent.angle;
|
||
this.gesture.prevDistance = gestureEvent.distance;
|
||
|
||
if (gestureEvent.scale !== Infinity &&
|
||
gestureEvent.scale !== null &&
|
||
gestureEvent.scale !== undefined &&
|
||
!isNaN(gestureEvent.scale)) {
|
||
|
||
this.gesture.scale = gestureEvent.scale;
|
||
}
|
||
|
||
return gestureEvent;
|
||
},
|
||
|
||
pointerHold: function (pointer, event, eventTarget) {
|
||
this.collectEventTargets(pointer, event, eventTarget, 'hold');
|
||
},
|
||
|
||
pointerUp: function (pointer, event, eventTarget, curEventTarget) {
|
||
var pointerIndex = this.mouse? 0 : indexOf(this.pointerIds, getPointerId(pointer));
|
||
|
||
clearTimeout(this.holdTimers[pointerIndex]);
|
||
|
||
this.collectEventTargets(pointer, event, eventTarget, 'up' );
|
||
this.collectEventTargets(pointer, event, eventTarget, 'tap');
|
||
|
||
this.pointerEnd(pointer, event, eventTarget, curEventTarget);
|
||
|
||
this.removePointer(pointer);
|
||
},
|
||
|
||
pointerCancel: function (pointer, event, eventTarget, curEventTarget) {
|
||
var pointerIndex = this.mouse? 0 : indexOf(this.pointerIds, getPointerId(pointer));
|
||
|
||
clearTimeout(this.holdTimers[pointerIndex]);
|
||
|
||
this.collectEventTargets(pointer, event, eventTarget, 'cancel');
|
||
this.pointerEnd(pointer, event, eventTarget, curEventTarget);
|
||
|
||
this.removePointer(pointer);
|
||
},
|
||
|
||
// http://www.quirksmode.org/dom/events/click.html
|
||
// >Events leading to dblclick
|
||
//
|
||
// IE8 doesn't fire down event before dblclick.
|
||
// This workaround tries to fire a tap and doubletap after dblclick
|
||
ie8Dblclick: function (pointer, event, eventTarget) {
|
||
if (this.prevTap
|
||
&& event.clientX === this.prevTap.clientX
|
||
&& event.clientY === this.prevTap.clientY
|
||
&& eventTarget === this.prevTap.target) {
|
||
|
||
this.downTargets[0] = eventTarget;
|
||
this.downTimes[0] = new Date().getTime();
|
||
this.collectEventTargets(pointer, event, eventTarget, 'tap');
|
||
}
|
||
},
|
||
|
||
// End interact move events and stop auto-scroll unless inertia is enabled
|
||
pointerEnd: function (pointer, event, eventTarget, curEventTarget) {
|
||
var endEvent,
|
||
target = this.target,
|
||
options = target && target.options,
|
||
inertiaOptions = options && this.prepared.name && options[this.prepared.name].inertia,
|
||
inertiaStatus = this.inertiaStatus;
|
||
|
||
if (this.interacting()) {
|
||
|
||
if (inertiaStatus.active && !inertiaStatus.ending) { return; }
|
||
|
||
var pointerSpeed,
|
||
now = new Date().getTime(),
|
||
inertiaPossible = false,
|
||
inertia = false,
|
||
smoothEnd = false,
|
||
endSnap = checkSnap(target, this.prepared.name) && options[this.prepared.name].snap.endOnly,
|
||
endRestrict = checkRestrict(target, this.prepared.name) && options[this.prepared.name].restrict.endOnly,
|
||
dx = 0,
|
||
dy = 0,
|
||
startEvent;
|
||
|
||
if (this.dragging) {
|
||
if (options.drag.axis === 'x' ) { pointerSpeed = Math.abs(this.pointerDelta.client.vx); }
|
||
else if (options.drag.axis === 'y' ) { pointerSpeed = Math.abs(this.pointerDelta.client.vy); }
|
||
else /*options.drag.axis === 'xy'*/{ pointerSpeed = this.pointerDelta.client.speed; }
|
||
}
|
||
else {
|
||
pointerSpeed = this.pointerDelta.client.speed;
|
||
}
|
||
|
||
// check if inertia should be started
|
||
inertiaPossible = (inertiaOptions && inertiaOptions.enabled
|
||
&& this.prepared.name !== 'gesture'
|
||
&& event !== inertiaStatus.startEvent);
|
||
|
||
inertia = (inertiaPossible
|
||
&& (now - this.curCoords.timeStamp) < 50
|
||
&& pointerSpeed > inertiaOptions.minSpeed
|
||
&& pointerSpeed > inertiaOptions.endSpeed);
|
||
|
||
if (inertiaPossible && !inertia && (endSnap || endRestrict)) {
|
||
|
||
var snapRestrict = {};
|
||
|
||
snapRestrict.snap = snapRestrict.restrict = snapRestrict;
|
||
|
||
if (endSnap) {
|
||
this.setSnapping(this.curCoords.page, snapRestrict);
|
||
if (snapRestrict.locked) {
|
||
dx += snapRestrict.dx;
|
||
dy += snapRestrict.dy;
|
||
}
|
||
}
|
||
|
||
if (endRestrict) {
|
||
this.setRestriction(this.curCoords.page, snapRestrict);
|
||
if (snapRestrict.restricted) {
|
||
dx += snapRestrict.dx;
|
||
dy += snapRestrict.dy;
|
||
}
|
||
}
|
||
|
||
if (dx || dy) {
|
||
smoothEnd = true;
|
||
}
|
||
}
|
||
|
||
if (inertia || smoothEnd) {
|
||
copyCoords(inertiaStatus.upCoords, this.curCoords);
|
||
|
||
this.pointers[0] = inertiaStatus.startEvent = startEvent =
|
||
new InteractEvent(this, event, this.prepared.name, 'inertiastart', this.element);
|
||
|
||
inertiaStatus.t0 = now;
|
||
|
||
target.fire(inertiaStatus.startEvent);
|
||
|
||
if (inertia) {
|
||
inertiaStatus.vx0 = this.pointerDelta.client.vx;
|
||
inertiaStatus.vy0 = this.pointerDelta.client.vy;
|
||
inertiaStatus.v0 = pointerSpeed;
|
||
|
||
this.calcInertia(inertiaStatus);
|
||
|
||
var page = extend({}, this.curCoords.page),
|
||
origin = getOriginXY(target, this.element),
|
||
statusObject;
|
||
|
||
page.x = page.x + inertiaStatus.xe - origin.x;
|
||
page.y = page.y + inertiaStatus.ye - origin.y;
|
||
|
||
statusObject = {
|
||
useStatusXY: true,
|
||
x: page.x,
|
||
y: page.y,
|
||
dx: 0,
|
||
dy: 0,
|
||
snap: null
|
||
};
|
||
|
||
statusObject.snap = statusObject;
|
||
|
||
dx = dy = 0;
|
||
|
||
if (endSnap) {
|
||
var snap = this.setSnapping(this.curCoords.page, statusObject);
|
||
|
||
if (snap.locked) {
|
||
dx += snap.dx;
|
||
dy += snap.dy;
|
||
}
|
||
}
|
||
|
||
if (endRestrict) {
|
||
var restrict = this.setRestriction(this.curCoords.page, statusObject);
|
||
|
||
if (restrict.restricted) {
|
||
dx += restrict.dx;
|
||
dy += restrict.dy;
|
||
}
|
||
}
|
||
|
||
inertiaStatus.modifiedXe += dx;
|
||
inertiaStatus.modifiedYe += dy;
|
||
|
||
inertiaStatus.i = reqFrame(this.boundInertiaFrame);
|
||
}
|
||
else {
|
||
inertiaStatus.smoothEnd = true;
|
||
inertiaStatus.xe = dx;
|
||
inertiaStatus.ye = dy;
|
||
|
||
inertiaStatus.sx = inertiaStatus.sy = 0;
|
||
|
||
inertiaStatus.i = reqFrame(this.boundSmoothEndFrame);
|
||
}
|
||
|
||
inertiaStatus.active = true;
|
||
return;
|
||
}
|
||
|
||
if (endSnap || endRestrict) {
|
||
// fire a move event at the snapped coordinates
|
||
this.pointerMove(pointer, event, eventTarget, curEventTarget, true);
|
||
}
|
||
}
|
||
|
||
if (this.dragging) {
|
||
endEvent = new InteractEvent(this, event, 'drag', 'end', this.element);
|
||
|
||
var draggableElement = this.element,
|
||
drop = this.getDrop(endEvent, event, draggableElement);
|
||
|
||
this.dropTarget = drop.dropzone;
|
||
this.dropElement = drop.element;
|
||
|
||
var dropEvents = this.getDropEvents(event, endEvent);
|
||
|
||
if (dropEvents.leave) { this.prevDropTarget.fire(dropEvents.leave); }
|
||
if (dropEvents.enter) { this.dropTarget.fire(dropEvents.enter); }
|
||
if (dropEvents.drop ) { this.dropTarget.fire(dropEvents.drop ); }
|
||
if (dropEvents.deactivate) {
|
||
this.fireActiveDrops(dropEvents.deactivate);
|
||
}
|
||
|
||
target.fire(endEvent);
|
||
}
|
||
else if (this.resizing) {
|
||
endEvent = new InteractEvent(this, event, 'resize', 'end', this.element);
|
||
target.fire(endEvent);
|
||
}
|
||
else if (this.gesturing) {
|
||
endEvent = new InteractEvent(this, event, 'gesture', 'end', this.element);
|
||
target.fire(endEvent);
|
||
}
|
||
|
||
this.stop(event);
|
||
},
|
||
|
||
collectDrops: function (element) {
|
||
var drops = [],
|
||
elements = [],
|
||
i;
|
||
|
||
element = element || this.element;
|
||
|
||
// collect all dropzones and their elements which qualify for a drop
|
||
for (i = 0; i < interactables.length; i++) {
|
||
if (!interactables[i].options.drop.enabled) { continue; }
|
||
|
||
var current = interactables[i],
|
||
accept = current.options.drop.accept;
|
||
|
||
// test the draggable element against the dropzone's accept setting
|
||
if ((isElement(accept) && accept !== element)
|
||
|| (isString(accept)
|
||
&& !matchesSelector(element, accept))) {
|
||
|
||
continue;
|
||
}
|
||
|
||
// query for new elements if necessary
|
||
var dropElements = current.selector? current._context.querySelectorAll(current.selector) : [current._element];
|
||
|
||
for (var j = 0, len = dropElements.length; j < len; j++) {
|
||
var currentElement = dropElements[j];
|
||
|
||
if (currentElement === element) {
|
||
continue;
|
||
}
|
||
|
||
drops.push(current);
|
||
elements.push(currentElement);
|
||
}
|
||
}
|
||
|
||
return {
|
||
dropzones: drops,
|
||
elements: elements
|
||
};
|
||
},
|
||
|
||
fireActiveDrops: function (event) {
|
||
var i,
|
||
current,
|
||
currentElement,
|
||
prevElement;
|
||
|
||
// loop through all active dropzones and trigger event
|
||
for (i = 0; i < this.activeDrops.dropzones.length; i++) {
|
||
current = this.activeDrops.dropzones[i];
|
||
currentElement = this.activeDrops.elements [i];
|
||
|
||
// prevent trigger of duplicate events on same element
|
||
if (currentElement !== prevElement) {
|
||
// set current element as event target
|
||
event.target = currentElement;
|
||
current.fire(event);
|
||
}
|
||
prevElement = currentElement;
|
||
}
|
||
},
|
||
|
||
// Collect a new set of possible drops and save them in activeDrops.
|
||
// setActiveDrops should always be called when a drag has just started or a
|
||
// drag event happens while dynamicDrop is true
|
||
setActiveDrops: function (dragElement) {
|
||
// get dropzones and their elements that could receive the draggable
|
||
var possibleDrops = this.collectDrops(dragElement, true);
|
||
|
||
this.activeDrops.dropzones = possibleDrops.dropzones;
|
||
this.activeDrops.elements = possibleDrops.elements;
|
||
this.activeDrops.rects = [];
|
||
|
||
for (var i = 0; i < this.activeDrops.dropzones.length; i++) {
|
||
this.activeDrops.rects[i] = this.activeDrops.dropzones[i].getRect(this.activeDrops.elements[i]);
|
||
}
|
||
},
|
||
|
||
getDrop: function (dragEvent, event, dragElement) {
|
||
var validDrops = [];
|
||
|
||
if (dynamicDrop) {
|
||
this.setActiveDrops(dragElement);
|
||
}
|
||
|
||
// collect all dropzones and their elements which qualify for a drop
|
||
for (var j = 0; j < this.activeDrops.dropzones.length; j++) {
|
||
var current = this.activeDrops.dropzones[j],
|
||
currentElement = this.activeDrops.elements [j],
|
||
rect = this.activeDrops.rects [j];
|
||
|
||
validDrops.push(current.dropCheck(dragEvent, event, this.target, dragElement, currentElement, rect)
|
||
? currentElement
|
||
: null);
|
||
}
|
||
|
||
// get the most appropriate dropzone based on DOM depth and order
|
||
var dropIndex = indexOfDeepestElement(validDrops),
|
||
dropzone = this.activeDrops.dropzones[dropIndex] || null,
|
||
element = this.activeDrops.elements [dropIndex] || null;
|
||
|
||
return {
|
||
dropzone: dropzone,
|
||
element: element
|
||
};
|
||
},
|
||
|
||
getDropEvents: function (pointerEvent, dragEvent) {
|
||
var dropEvents = {
|
||
enter : null,
|
||
leave : null,
|
||
activate : null,
|
||
deactivate: null,
|
||
move : null,
|
||
drop : null
|
||
};
|
||
|
||
if (this.dropElement !== this.prevDropElement) {
|
||
// if there was a prevDropTarget, create a dragleave event
|
||
if (this.prevDropTarget) {
|
||
dropEvents.leave = {
|
||
target : this.prevDropElement,
|
||
dropzone : this.prevDropTarget,
|
||
relatedTarget: dragEvent.target,
|
||
draggable : dragEvent.interactable,
|
||
dragEvent : dragEvent,
|
||
interaction : this,
|
||
timeStamp : dragEvent.timeStamp,
|
||
type : 'dragleave'
|
||
};
|
||
|
||
dragEvent.dragLeave = this.prevDropElement;
|
||
dragEvent.prevDropzone = this.prevDropTarget;
|
||
}
|
||
// if the dropTarget is not null, create a dragenter event
|
||
if (this.dropTarget) {
|
||
dropEvents.enter = {
|
||
target : this.dropElement,
|
||
dropzone : this.dropTarget,
|
||
relatedTarget: dragEvent.target,
|
||
draggable : dragEvent.interactable,
|
||
dragEvent : dragEvent,
|
||
interaction : this,
|
||
timeStamp : dragEvent.timeStamp,
|
||
type : 'dragenter'
|
||
};
|
||
|
||
dragEvent.dragEnter = this.dropElement;
|
||
dragEvent.dropzone = this.dropTarget;
|
||
}
|
||
}
|
||
|
||
if (dragEvent.type === 'dragend' && this.dropTarget) {
|
||
dropEvents.drop = {
|
||
target : this.dropElement,
|
||
dropzone : this.dropTarget,
|
||
relatedTarget: dragEvent.target,
|
||
draggable : dragEvent.interactable,
|
||
dragEvent : dragEvent,
|
||
interaction : this,
|
||
timeStamp : dragEvent.timeStamp,
|
||
type : 'drop'
|
||
};
|
||
|
||
dragEvent.dropzone = this.dropTarget;
|
||
}
|
||
if (dragEvent.type === 'dragstart') {
|
||
dropEvents.activate = {
|
||
target : null,
|
||
dropzone : null,
|
||
relatedTarget: dragEvent.target,
|
||
draggable : dragEvent.interactable,
|
||
dragEvent : dragEvent,
|
||
interaction : this,
|
||
timeStamp : dragEvent.timeStamp,
|
||
type : 'dropactivate'
|
||
};
|
||
}
|
||
if (dragEvent.type === 'dragend') {
|
||
dropEvents.deactivate = {
|
||
target : null,
|
||
dropzone : null,
|
||
relatedTarget: dragEvent.target,
|
||
draggable : dragEvent.interactable,
|
||
dragEvent : dragEvent,
|
||
interaction : this,
|
||
timeStamp : dragEvent.timeStamp,
|
||
type : 'dropdeactivate'
|
||
};
|
||
}
|
||
if (dragEvent.type === 'dragmove' && this.dropTarget) {
|
||
dropEvents.move = {
|
||
target : this.dropElement,
|
||
dropzone : this.dropTarget,
|
||
relatedTarget: dragEvent.target,
|
||
draggable : dragEvent.interactable,
|
||
dragEvent : dragEvent,
|
||
interaction : this,
|
||
dragmove : dragEvent,
|
||
timeStamp : dragEvent.timeStamp,
|
||
type : 'dropmove'
|
||
};
|
||
dragEvent.dropzone = this.dropTarget;
|
||
}
|
||
|
||
return dropEvents;
|
||
},
|
||
|
||
currentAction: function () {
|
||
return (this.dragging && 'drag') || (this.resizing && 'resize') || (this.gesturing && 'gesture') || null;
|
||
},
|
||
|
||
interacting: function () {
|
||
return this.dragging || this.resizing || this.gesturing;
|
||
},
|
||
|
||
clearTargets: function () {
|
||
this.target = this.element = null;
|
||
|
||
this.dropTarget = this.dropElement = this.prevDropTarget = this.prevDropElement = null;
|
||
},
|
||
|
||
stop: function (event) {
|
||
if (this.interacting()) {
|
||
autoScroll.stop();
|
||
this.matches = [];
|
||
this.matchElements = [];
|
||
|
||
var target = this.target;
|
||
|
||
if (target.options.styleCursor) {
|
||
target._doc.documentElement.style.cursor = '';
|
||
}
|
||
|
||
// prevent Default only if were previously interacting
|
||
if (event && isFunction(event.preventDefault)) {
|
||
this.checkAndPreventDefault(event, target, this.element);
|
||
}
|
||
|
||
if (this.dragging) {
|
||
this.activeDrops.dropzones = this.activeDrops.elements = this.activeDrops.rects = null;
|
||
}
|
||
}
|
||
|
||
this.clearTargets();
|
||
|
||
this.pointerIsDown = this.snapStatus.locked = this.dragging = this.resizing = this.gesturing = false;
|
||
this.prepared.name = this.prevEvent = null;
|
||
this.inertiaStatus.resumeDx = this.inertiaStatus.resumeDy = 0;
|
||
|
||
// remove pointers if their ID isn't in this.pointerIds
|
||
for (var i = 0; i < this.pointers.length; i++) {
|
||
if (indexOf(this.pointerIds, getPointerId(this.pointers[i])) === -1) {
|
||
this.pointers.splice(i, 1);
|
||
}
|
||
}
|
||
},
|
||
|
||
inertiaFrame: function () {
|
||
var inertiaStatus = this.inertiaStatus,
|
||
options = this.target.options[this.prepared.name].inertia,
|
||
lambda = options.resistance,
|
||
t = new Date().getTime() / 1000 - inertiaStatus.t0;
|
||
|
||
if (t < inertiaStatus.te) {
|
||
|
||
var progress = 1 - (Math.exp(-lambda * t) - inertiaStatus.lambda_v0) / inertiaStatus.one_ve_v0;
|
||
|
||
if (inertiaStatus.modifiedXe === inertiaStatus.xe && inertiaStatus.modifiedYe === inertiaStatus.ye) {
|
||
inertiaStatus.sx = inertiaStatus.xe * progress;
|
||
inertiaStatus.sy = inertiaStatus.ye * progress;
|
||
}
|
||
else {
|
||
var quadPoint = getQuadraticCurvePoint(
|
||
0, 0,
|
||
inertiaStatus.xe, inertiaStatus.ye,
|
||
inertiaStatus.modifiedXe, inertiaStatus.modifiedYe,
|
||
progress);
|
||
|
||
inertiaStatus.sx = quadPoint.x;
|
||
inertiaStatus.sy = quadPoint.y;
|
||
}
|
||
|
||
this.pointerMove(inertiaStatus.startEvent, inertiaStatus.startEvent);
|
||
|
||
inertiaStatus.i = reqFrame(this.boundInertiaFrame);
|
||
}
|
||
else {
|
||
inertiaStatus.ending = true;
|
||
|
||
inertiaStatus.sx = inertiaStatus.modifiedXe;
|
||
inertiaStatus.sy = inertiaStatus.modifiedYe;
|
||
|
||
this.pointerMove(inertiaStatus.startEvent, inertiaStatus.startEvent);
|
||
this.pointerEnd(inertiaStatus.startEvent, inertiaStatus.startEvent);
|
||
|
||
inertiaStatus.active = inertiaStatus.ending = false;
|
||
}
|
||
},
|
||
|
||
smoothEndFrame: function () {
|
||
var inertiaStatus = this.inertiaStatus,
|
||
t = new Date().getTime() - inertiaStatus.t0,
|
||
duration = this.target.options[this.prepared.name].inertia.smoothEndDuration;
|
||
|
||
if (t < duration) {
|
||
inertiaStatus.sx = easeOutQuad(t, 0, inertiaStatus.xe, duration);
|
||
inertiaStatus.sy = easeOutQuad(t, 0, inertiaStatus.ye, duration);
|
||
|
||
this.pointerMove(inertiaStatus.startEvent, inertiaStatus.startEvent);
|
||
|
||
inertiaStatus.i = reqFrame(this.boundSmoothEndFrame);
|
||
}
|
||
else {
|
||
inertiaStatus.ending = true;
|
||
|
||
inertiaStatus.sx = inertiaStatus.xe;
|
||
inertiaStatus.sy = inertiaStatus.ye;
|
||
|
||
this.pointerMove(inertiaStatus.startEvent, inertiaStatus.startEvent);
|
||
this.pointerEnd(inertiaStatus.startEvent, inertiaStatus.startEvent);
|
||
|
||
inertiaStatus.smoothEnd =
|
||
inertiaStatus.active = inertiaStatus.ending = false;
|
||
}
|
||
},
|
||
|
||
addPointer: function (pointer) {
|
||
var id = getPointerId(pointer),
|
||
index = this.mouse? 0 : indexOf(this.pointerIds, id);
|
||
|
||
if (index === -1) {
|
||
index = this.pointerIds.length;
|
||
}
|
||
|
||
this.pointerIds[index] = id;
|
||
this.pointers[index] = pointer;
|
||
|
||
return index;
|
||
},
|
||
|
||
removePointer: function (pointer) {
|
||
var id = getPointerId(pointer),
|
||
index = this.mouse? 0 : indexOf(this.pointerIds, id);
|
||
|
||
if (index === -1) { return; }
|
||
|
||
this.pointers .splice(index, 1);
|
||
this.pointerIds .splice(index, 1);
|
||
this.downTargets.splice(index, 1);
|
||
this.downTimes .splice(index, 1);
|
||
this.holdTimers .splice(index, 1);
|
||
},
|
||
|
||
recordPointer: function (pointer) {
|
||
var index = this.mouse? 0: indexOf(this.pointerIds, getPointerId(pointer));
|
||
|
||
if (index === -1) { return; }
|
||
|
||
this.pointers[index] = pointer;
|
||
},
|
||
|
||
collectEventTargets: function (pointer, event, eventTarget, eventType) {
|
||
var pointerIndex = this.mouse? 0 : indexOf(this.pointerIds, getPointerId(pointer));
|
||
|
||
// do not fire a tap event if the pointer was moved before being lifted
|
||
if (eventType === 'tap' && (this.pointerWasMoved
|
||
// or if the pointerup target is different to the pointerdown target
|
||
|| !(this.downTargets[pointerIndex] && this.downTargets[pointerIndex] === eventTarget))) {
|
||
return;
|
||
}
|
||
|
||
var targets = [],
|
||
elements = [],
|
||
element = eventTarget;
|
||
|
||
function collectSelectors (interactable, selector, context) {
|
||
var els = ie8MatchesSelector
|
||
? context.querySelectorAll(selector)
|
||
: undefined;
|
||
|
||
if (interactable._iEvents[eventType]
|
||
&& isElement(element)
|
||
&& inContext(interactable, element)
|
||
&& !testIgnore(interactable, element, eventTarget)
|
||
&& testAllow(interactable, element, eventTarget)
|
||
&& matchesSelector(element, selector, els)) {
|
||
|
||
targets.push(interactable);
|
||
elements.push(element);
|
||
}
|
||
}
|
||
|
||
while (element) {
|
||
if (interact.isSet(element) && interact(element)._iEvents[eventType]) {
|
||
targets.push(interact(element));
|
||
elements.push(element);
|
||
}
|
||
|
||
interactables.forEachSelector(collectSelectors);
|
||
|
||
element = parentElement(element);
|
||
}
|
||
|
||
// create the tap event even if there are no listeners so that
|
||
// doubletap can still be created and fired
|
||
if (targets.length || eventType === 'tap') {
|
||
this.firePointers(pointer, event, eventTarget, targets, elements, eventType);
|
||
}
|
||
},
|
||
|
||
firePointers: function (pointer, event, eventTarget, targets, elements, eventType) {
|
||
var pointerIndex = this.mouse? 0 : indexOf(this.pointerIds, getPointerId(pointer)),
|
||
pointerEvent = {},
|
||
i,
|
||
// for tap events
|
||
interval, createNewDoubleTap;
|
||
|
||
// if it's a doubletap then the event properties would have been
|
||
// copied from the tap event and provided as the pointer argument
|
||
if (eventType === 'doubletap') {
|
||
pointerEvent = pointer;
|
||
}
|
||
else {
|
||
pointerExtend(pointerEvent, event);
|
||
if (event !== pointer) {
|
||
pointerExtend(pointerEvent, pointer);
|
||
}
|
||
|
||
pointerEvent.preventDefault = preventOriginalDefault;
|
||
pointerEvent.stopPropagation = InteractEvent.prototype.stopPropagation;
|
||
pointerEvent.stopImmediatePropagation = InteractEvent.prototype.stopImmediatePropagation;
|
||
pointerEvent.interaction = this;
|
||
|
||
pointerEvent.timeStamp = new Date().getTime();
|
||
pointerEvent.originalEvent = event;
|
||
pointerEvent.originalPointer = pointer;
|
||
pointerEvent.type = eventType;
|
||
pointerEvent.pointerId = getPointerId(pointer);
|
||
pointerEvent.pointerType = this.mouse? 'mouse' : !supportsPointerEvent? 'touch'
|
||
: isString(pointer.pointerType)
|
||
? pointer.pointerType
|
||
: [,,'touch', 'pen', 'mouse'][pointer.pointerType];
|
||
}
|
||
|
||
if (eventType === 'tap') {
|
||
pointerEvent.dt = pointerEvent.timeStamp - this.downTimes[pointerIndex];
|
||
|
||
interval = pointerEvent.timeStamp - this.tapTime;
|
||
createNewDoubleTap = !!(this.prevTap && this.prevTap.type !== 'doubletap'
|
||
&& this.prevTap.target === pointerEvent.target
|
||
&& interval < 500);
|
||
|
||
pointerEvent.double = createNewDoubleTap;
|
||
|
||
this.tapTime = pointerEvent.timeStamp;
|
||
}
|
||
|
||
for (i = 0; i < targets.length; i++) {
|
||
pointerEvent.currentTarget = elements[i];
|
||
pointerEvent.interactable = targets[i];
|
||
targets[i].fire(pointerEvent);
|
||
|
||
if (pointerEvent.immediatePropagationStopped
|
||
||(pointerEvent.propagationStopped && elements[i + 1] !== pointerEvent.currentTarget)) {
|
||
break;
|
||
}
|
||
}
|
||
|
||
if (createNewDoubleTap) {
|
||
var doubleTap = {};
|
||
|
||
extend(doubleTap, pointerEvent);
|
||
|
||
doubleTap.dt = interval;
|
||
doubleTap.type = 'doubletap';
|
||
|
||
this.collectEventTargets(doubleTap, event, eventTarget, 'doubletap');
|
||
|
||
this.prevTap = doubleTap;
|
||
}
|
||
else if (eventType === 'tap') {
|
||
this.prevTap = pointerEvent;
|
||
}
|
||
},
|
||
|
||
validateSelector: function (pointer, event, matches, matchElements) {
|
||
for (var i = 0, len = matches.length; i < len; i++) {
|
||
var match = matches[i],
|
||
matchElement = matchElements[i],
|
||
action = validateAction(match.getAction(pointer, event, this, matchElement), match);
|
||
|
||
if (action && withinInteractionLimit(match, matchElement, action)) {
|
||
this.target = match;
|
||
this.element = matchElement;
|
||
|
||
return action;
|
||
}
|
||
}
|
||
},
|
||
|
||
setSnapping: function (pageCoords, status) {
|
||
var snap = this.target.options[this.prepared.name].snap,
|
||
targets = [],
|
||
target,
|
||
page,
|
||
i;
|
||
|
||
status = status || this.snapStatus;
|
||
|
||
if (status.useStatusXY) {
|
||
page = { x: status.x, y: status.y };
|
||
}
|
||
else {
|
||
var origin = getOriginXY(this.target, this.element);
|
||
|
||
page = extend({}, pageCoords);
|
||
|
||
page.x -= origin.x;
|
||
page.y -= origin.y;
|
||
}
|
||
|
||
status.realX = page.x;
|
||
status.realY = page.y;
|
||
|
||
page.x = page.x - this.inertiaStatus.resumeDx;
|
||
page.y = page.y - this.inertiaStatus.resumeDy;
|
||
|
||
var len = snap.targets? snap.targets.length : 0;
|
||
|
||
for (var relIndex = 0; relIndex < this.snapOffsets.length; relIndex++) {
|
||
var relative = {
|
||
x: page.x - this.snapOffsets[relIndex].x,
|
||
y: page.y - this.snapOffsets[relIndex].y
|
||
};
|
||
|
||
for (i = 0; i < len; i++) {
|
||
if (isFunction(snap.targets[i])) {
|
||
target = snap.targets[i](relative.x, relative.y, this);
|
||
}
|
||
else {
|
||
target = snap.targets[i];
|
||
}
|
||
|
||
if (!target) { continue; }
|
||
|
||
targets.push({
|
||
x: isNumber(target.x) ? (target.x + this.snapOffsets[relIndex].x) : relative.x,
|
||
y: isNumber(target.y) ? (target.y + this.snapOffsets[relIndex].y) : relative.y,
|
||
|
||
range: isNumber(target.range)? target.range: snap.range
|
||
});
|
||
}
|
||
}
|
||
|
||
var closest = {
|
||
target: null,
|
||
inRange: false,
|
||
distance: 0,
|
||
range: 0,
|
||
dx: 0,
|
||
dy: 0
|
||
};
|
||
|
||
for (i = 0, len = targets.length; i < len; i++) {
|
||
target = targets[i];
|
||
|
||
var range = target.range,
|
||
dx = target.x - page.x,
|
||
dy = target.y - page.y,
|
||
distance = hypot(dx, dy),
|
||
inRange = distance <= range;
|
||
|
||
// Infinite targets count as being out of range
|
||
// compared to non infinite ones that are in range
|
||
if (range === Infinity && closest.inRange && closest.range !== Infinity) {
|
||
inRange = false;
|
||
}
|
||
|
||
if (!closest.target || (inRange
|
||
// is the closest target in range?
|
||
? (closest.inRange && range !== Infinity
|
||
// the pointer is relatively deeper in this target
|
||
? distance / range < closest.distance / closest.range
|
||
// this target has Infinite range and the closest doesn't
|
||
: (range === Infinity && closest.range !== Infinity)
|
||
// OR this target is closer that the previous closest
|
||
|| distance < closest.distance)
|
||
// The other is not in range and the pointer is closer to this target
|
||
: (!closest.inRange && distance < closest.distance))) {
|
||
|
||
if (range === Infinity) {
|
||
inRange = true;
|
||
}
|
||
|
||
closest.target = target;
|
||
closest.distance = distance;
|
||
closest.range = range;
|
||
closest.inRange = inRange;
|
||
closest.dx = dx;
|
||
closest.dy = dy;
|
||
|
||
status.range = range;
|
||
}
|
||
}
|
||
|
||
var snapChanged;
|
||
|
||
if (closest.target) {
|
||
snapChanged = (status.snappedX !== closest.target.x || status.snappedY !== closest.target.y);
|
||
|
||
status.snappedX = closest.target.x;
|
||
status.snappedY = closest.target.y;
|
||
}
|
||
else {
|
||
snapChanged = true;
|
||
|
||
status.snappedX = NaN;
|
||
status.snappedY = NaN;
|
||
}
|
||
|
||
status.dx = closest.dx;
|
||
status.dy = closest.dy;
|
||
|
||
status.changed = (snapChanged || (closest.inRange && !status.locked));
|
||
status.locked = closest.inRange;
|
||
|
||
return status;
|
||
},
|
||
|
||
setRestriction: function (pageCoords, status) {
|
||
var target = this.target,
|
||
restrict = target && target.options[this.prepared.name].restrict,
|
||
restriction = restrict && restrict.restriction,
|
||
page;
|
||
|
||
if (!restriction) {
|
||
return status;
|
||
}
|
||
|
||
status = status || this.restrictStatus;
|
||
|
||
page = status.useStatusXY
|
||
? page = { x: status.x, y: status.y }
|
||
: page = extend({}, pageCoords);
|
||
|
||
if (status.snap && status.snap.locked) {
|
||
page.x += status.snap.dx || 0;
|
||
page.y += status.snap.dy || 0;
|
||
}
|
||
|
||
page.x -= this.inertiaStatus.resumeDx;
|
||
page.y -= this.inertiaStatus.resumeDy;
|
||
|
||
status.dx = 0;
|
||
status.dy = 0;
|
||
status.restricted = false;
|
||
|
||
var rect, restrictedX, restrictedY;
|
||
|
||
if (isString(restriction)) {
|
||
if (restriction === 'parent') {
|
||
restriction = parentElement(this.element);
|
||
}
|
||
else if (restriction === 'self') {
|
||
restriction = target.getRect(this.element);
|
||
}
|
||
else {
|
||
restriction = closest(this.element, restriction);
|
||
}
|
||
|
||
if (!restriction) { return status; }
|
||
}
|
||
|
||
if (isFunction(restriction)) {
|
||
restriction = restriction(page.x, page.y, this.element);
|
||
}
|
||
|
||
if (isElement(restriction)) {
|
||
restriction = getElementRect(restriction);
|
||
}
|
||
|
||
rect = restriction;
|
||
|
||
if (!restriction) {
|
||
restrictedX = page.x;
|
||
restrictedY = page.y;
|
||
}
|
||
// object is assumed to have
|
||
// x, y, width, height or
|
||
// left, top, right, bottom
|
||
else if ('x' in restriction && 'y' in restriction) {
|
||
restrictedX = Math.max(Math.min(rect.x + rect.width - this.restrictOffset.right , page.x), rect.x + this.restrictOffset.left);
|
||
restrictedY = Math.max(Math.min(rect.y + rect.height - this.restrictOffset.bottom, page.y), rect.y + this.restrictOffset.top );
|
||
}
|
||
else {
|
||
restrictedX = Math.max(Math.min(rect.right - this.restrictOffset.right , page.x), rect.left + this.restrictOffset.left);
|
||
restrictedY = Math.max(Math.min(rect.bottom - this.restrictOffset.bottom, page.y), rect.top + this.restrictOffset.top );
|
||
}
|
||
|
||
status.dx = restrictedX - page.x;
|
||
status.dy = restrictedY - page.y;
|
||
|
||
status.changed = status.restrictedX !== restrictedX || status.restrictedY !== restrictedY;
|
||
status.restricted = !!(status.dx || status.dy);
|
||
|
||
status.restrictedX = restrictedX;
|
||
status.restrictedY = restrictedY;
|
||
|
||
return status;
|
||
},
|
||
|
||
checkAndPreventDefault: function (event, interactable, element) {
|
||
if (!(interactable = interactable || this.target)) { return; }
|
||
|
||
var options = interactable.options,
|
||
prevent = options.preventDefault;
|
||
|
||
if (prevent === 'auto' && element && !/^(input|select|textarea)$/i.test(event.target.nodeName)) {
|
||
// do not preventDefault on pointerdown if the prepared action is a drag
|
||
// and dragging can only start from a certain direction - this allows
|
||
// a touch to pan the viewport if a drag isn't in the right direction
|
||
if (/down|start/i.test(event.type)
|
||
&& this.prepared.name === 'drag' && options.drag.axis !== 'xy') {
|
||
|
||
return;
|
||
}
|
||
|
||
// with manualStart, only preventDefault while interacting
|
||
if (options[this.prepared.name] && options[this.prepared.name].manualStart
|
||
&& !this.interacting()) {
|
||
return;
|
||
}
|
||
|
||
event.preventDefault();
|
||
return;
|
||
}
|
||
|
||
if (prevent === 'always') {
|
||
event.preventDefault();
|
||
return;
|
||
}
|
||
},
|
||
|
||
calcInertia: function (status) {
|
||
var inertiaOptions = this.target.options[this.prepared.name].inertia,
|
||
lambda = inertiaOptions.resistance,
|
||
inertiaDur = -Math.log(inertiaOptions.endSpeed / status.v0) / lambda;
|
||
|
||
status.x0 = this.prevEvent.pageX;
|
||
status.y0 = this.prevEvent.pageY;
|
||
status.t0 = status.startEvent.timeStamp / 1000;
|
||
status.sx = status.sy = 0;
|
||
|
||
status.modifiedXe = status.xe = (status.vx0 - inertiaDur) / lambda;
|
||
status.modifiedYe = status.ye = (status.vy0 - inertiaDur) / lambda;
|
||
status.te = inertiaDur;
|
||
|
||
status.lambda_v0 = lambda / status.v0;
|
||
status.one_ve_v0 = 1 - inertiaOptions.endSpeed / status.v0;
|
||
},
|
||
|
||
autoScrollMove: function (pointer) {
|
||
if (!(this.interacting()
|
||
&& checkAutoScroll(this.target, this.prepared.name))) {
|
||
return;
|
||
}
|
||
|
||
if (this.inertiaStatus.active) {
|
||
autoScroll.x = autoScroll.y = 0;
|
||
return;
|
||
}
|
||
|
||
var top,
|
||
right,
|
||
bottom,
|
||
left,
|
||
options = this.target.options[this.prepared.name].autoScroll,
|
||
container = options.container || getWindow(this.element);
|
||
|
||
if (isWindow(container)) {
|
||
left = pointer.clientX < autoScroll.margin;
|
||
top = pointer.clientY < autoScroll.margin;
|
||
right = pointer.clientX > container.innerWidth - autoScroll.margin;
|
||
bottom = pointer.clientY > container.innerHeight - autoScroll.margin;
|
||
}
|
||
else {
|
||
var rect = getElementClientRect(container);
|
||
|
||
left = pointer.clientX < rect.left + autoScroll.margin;
|
||
top = pointer.clientY < rect.top + autoScroll.margin;
|
||
right = pointer.clientX > rect.right - autoScroll.margin;
|
||
bottom = pointer.clientY > rect.bottom - autoScroll.margin;
|
||
}
|
||
|
||
autoScroll.x = (right ? 1: left? -1: 0);
|
||
autoScroll.y = (bottom? 1: top? -1: 0);
|
||
|
||
if (!autoScroll.isScrolling) {
|
||
// set the autoScroll properties to those of the target
|
||
autoScroll.margin = options.margin;
|
||
autoScroll.speed = options.speed;
|
||
|
||
autoScroll.start(this);
|
||
}
|
||
},
|
||
|
||
_updateEventTargets: function (target, currentTarget) {
|
||
this._eventTarget = target;
|
||
this._curEventTarget = currentTarget;
|
||
}
|
||
|
||
};
|
||
|
||
function getInteractionFromPointer (pointer, eventType, eventTarget) {
|
||
var i = 0, len = interactions.length,
|
||
mouseEvent = (/mouse/i.test(pointer.pointerType || eventType)
|
||
// MSPointerEvent.MSPOINTER_TYPE_MOUSE
|
||
|| pointer.pointerType === 4),
|
||
interaction;
|
||
|
||
var id = getPointerId(pointer);
|
||
|
||
// try to resume inertia with a new pointer
|
||
if (/down|start/i.test(eventType)) {
|
||
for (i = 0; i < len; i++) {
|
||
interaction = interactions[i];
|
||
|
||
var element = eventTarget;
|
||
|
||
if (interaction.inertiaStatus.active && interaction.target.options[interaction.prepared.name].inertia.allowResume
|
||
&& (interaction.mouse === mouseEvent)) {
|
||
while (element) {
|
||
// if the element is the interaction element
|
||
if (element === interaction.element) {
|
||
return interaction;
|
||
}
|
||
element = parentElement(element);
|
||
}
|
||
}
|
||
}
|
||
}
|
||
|
||
// if it's a mouse interaction
|
||
if (mouseEvent || !(supportsTouch || supportsPointerEvent)) {
|
||
|
||
// find a mouse interaction that's not in inertia phase
|
||
for (i = 0; i < len; i++) {
|
||
if (interactions[i].mouse && !interactions[i].inertiaStatus.active) {
|
||
return interactions[i];
|
||
}
|
||
}
|
||
|
||
// find any interaction specifically for mouse.
|
||
// if the eventType is a mousedown, and inertia is active
|
||
// ignore the interaction
|
||
for (i = 0; i < len; i++) {
|
||
if (interactions[i].mouse && !(/down/.test(eventType) && interactions[i].inertiaStatus.active)) {
|
||
return interaction;
|
||
}
|
||
}
|
||
|
||
// create a new interaction for mouse
|
||
interaction = new Interaction();
|
||
interaction.mouse = true;
|
||
|
||
return interaction;
|
||
}
|
||
|
||
// get interaction that has this pointer
|
||
for (i = 0; i < len; i++) {
|
||
if (contains(interactions[i].pointerIds, id)) {
|
||
return interactions[i];
|
||
}
|
||
}
|
||
|
||
// at this stage, a pointerUp should not return an interaction
|
||
if (/up|end|out/i.test(eventType)) {
|
||
return null;
|
||
}
|
||
|
||
// get first idle interaction
|
||
for (i = 0; i < len; i++) {
|
||
interaction = interactions[i];
|
||
|
||
if ((!interaction.prepared.name || (interaction.target.options.gesture.enabled))
|
||
&& !interaction.interacting()
|
||
&& !(!mouseEvent && interaction.mouse)) {
|
||
|
||
return interaction;
|
||
}
|
||
}
|
||
|
||
return new Interaction();
|
||
}
|
||
|
||
function doOnInteractions (method) {
|
||
return (function (event) {
|
||
var interaction,
|
||
eventTarget = getActualElement(event.path
|
||
? event.path[0]
|
||
: event.target),
|
||
curEventTarget = getActualElement(event.currentTarget),
|
||
i;
|
||
|
||
if (supportsTouch && /touch/.test(event.type)) {
|
||
prevTouchTime = new Date().getTime();
|
||
|
||
for (i = 0; i < event.changedTouches.length; i++) {
|
||
var pointer = event.changedTouches[i];
|
||
|
||
interaction = getInteractionFromPointer(pointer, event.type, eventTarget);
|
||
|
||
if (!interaction) { continue; }
|
||
|
||
interaction._updateEventTargets(eventTarget, curEventTarget);
|
||
|
||
interaction[method](pointer, event, eventTarget, curEventTarget);
|
||
}
|
||
}
|
||
else {
|
||
if (!supportsPointerEvent && /mouse/.test(event.type)) {
|
||
// ignore mouse events while touch interactions are active
|
||
for (i = 0; i < interactions.length; i++) {
|
||
if (!interactions[i].mouse && interactions[i].pointerIsDown) {
|
||
return;
|
||
}
|
||
}
|
||
|
||
// try to ignore mouse events that are simulated by the browser
|
||
// after a touch event
|
||
if (new Date().getTime() - prevTouchTime < 500) {
|
||
return;
|
||
}
|
||
}
|
||
|
||
interaction = getInteractionFromPointer(event, event.type, eventTarget);
|
||
|
||
if (!interaction) { return; }
|
||
|
||
interaction._updateEventTargets(eventTarget, curEventTarget);
|
||
|
||
interaction[method](event, event, eventTarget, curEventTarget);
|
||
}
|
||
});
|
||
}
|
||
|
||
function InteractEvent (interaction, event, action, phase, element, related) {
|
||
var client,
|
||
page,
|
||
target = interaction.target,
|
||
snapStatus = interaction.snapStatus,
|
||
restrictStatus = interaction.restrictStatus,
|
||
pointers = interaction.pointers,
|
||
deltaSource = (target && target.options || defaultOptions).deltaSource,
|
||
sourceX = deltaSource + 'X',
|
||
sourceY = deltaSource + 'Y',
|
||
options = target? target.options: defaultOptions,
|
||
origin = getOriginXY(target, element),
|
||
starting = phase === 'start',
|
||
ending = phase === 'end',
|
||
coords = starting? interaction.startCoords : interaction.curCoords;
|
||
|
||
element = element || interaction.element;
|
||
|
||
page = extend({}, coords.page);
|
||
client = extend({}, coords.client);
|
||
|
||
page.x -= origin.x;
|
||
page.y -= origin.y;
|
||
|
||
client.x -= origin.x;
|
||
client.y -= origin.y;
|
||
|
||
var relativePoints = options[action].snap && options[action].snap.relativePoints ;
|
||
|
||
if (checkSnap(target, action) && !(starting && relativePoints && relativePoints.length)) {
|
||
this.snap = {
|
||
range : snapStatus.range,
|
||
locked : snapStatus.locked,
|
||
x : snapStatus.snappedX,
|
||
y : snapStatus.snappedY,
|
||
realX : snapStatus.realX,
|
||
realY : snapStatus.realY,
|
||
dx : snapStatus.dx,
|
||
dy : snapStatus.dy
|
||
};
|
||
|
||
if (snapStatus.locked) {
|
||
page.x += snapStatus.dx;
|
||
page.y += snapStatus.dy;
|
||
client.x += snapStatus.dx;
|
||
client.y += snapStatus.dy;
|
||
}
|
||
}
|
||
|
||
if (checkRestrict(target, action) && !(starting && options[action].restrict.elementRect) && restrictStatus.restricted) {
|
||
page.x += restrictStatus.dx;
|
||
page.y += restrictStatus.dy;
|
||
client.x += restrictStatus.dx;
|
||
client.y += restrictStatus.dy;
|
||
|
||
this.restrict = {
|
||
dx: restrictStatus.dx,
|
||
dy: restrictStatus.dy
|
||
};
|
||
}
|
||
|
||
this.pageX = page.x;
|
||
this.pageY = page.y;
|
||
this.clientX = client.x;
|
||
this.clientY = client.y;
|
||
|
||
this.x0 = interaction.startCoords.page.x - origin.x;
|
||
this.y0 = interaction.startCoords.page.y - origin.y;
|
||
this.clientX0 = interaction.startCoords.client.x - origin.x;
|
||
this.clientY0 = interaction.startCoords.client.y - origin.y;
|
||
this.ctrlKey = event.ctrlKey;
|
||
this.altKey = event.altKey;
|
||
this.shiftKey = event.shiftKey;
|
||
this.metaKey = event.metaKey;
|
||
this.button = event.button;
|
||
this.buttons = event.buttons;
|
||
this.target = element;
|
||
this.t0 = interaction.downTimes[0];
|
||
this.type = action + (phase || '');
|
||
|
||
this.interaction = interaction;
|
||
this.interactable = target;
|
||
|
||
var inertiaStatus = interaction.inertiaStatus;
|
||
|
||
if (inertiaStatus.active) {
|
||
this.detail = 'inertia';
|
||
}
|
||
|
||
if (related) {
|
||
this.relatedTarget = related;
|
||
}
|
||
|
||
// end event dx, dy is difference between start and end points
|
||
if (ending) {
|
||
if (deltaSource === 'client') {
|
||
this.dx = client.x - interaction.startCoords.client.x;
|
||
this.dy = client.y - interaction.startCoords.client.y;
|
||
}
|
||
else {
|
||
this.dx = page.x - interaction.startCoords.page.x;
|
||
this.dy = page.y - interaction.startCoords.page.y;
|
||
}
|
||
}
|
||
else if (starting) {
|
||
this.dx = 0;
|
||
this.dy = 0;
|
||
}
|
||
// copy properties from previousmove if starting inertia
|
||
else if (phase === 'inertiastart') {
|
||
this.dx = interaction.prevEvent.dx;
|
||
this.dy = interaction.prevEvent.dy;
|
||
}
|
||
else {
|
||
if (deltaSource === 'client') {
|
||
this.dx = client.x - interaction.prevEvent.clientX;
|
||
this.dy = client.y - interaction.prevEvent.clientY;
|
||
}
|
||
else {
|
||
this.dx = page.x - interaction.prevEvent.pageX;
|
||
this.dy = page.y - interaction.prevEvent.pageY;
|
||
}
|
||
}
|
||
if (interaction.prevEvent && interaction.prevEvent.detail === 'inertia'
|
||
&& !inertiaStatus.active
|
||
&& options[action].inertia && options[action].inertia.zeroResumeDelta) {
|
||
|
||
inertiaStatus.resumeDx += this.dx;
|
||
inertiaStatus.resumeDy += this.dy;
|
||
|
||
this.dx = this.dy = 0;
|
||
}
|
||
|
||
if (action === 'resize' && interaction.resizeAxes) {
|
||
if (options.resize.square) {
|
||
if (interaction.resizeAxes === 'y') {
|
||
this.dx = this.dy;
|
||
}
|
||
else {
|
||
this.dy = this.dx;
|
||
}
|
||
this.axes = 'xy';
|
||
}
|
||
else {
|
||
this.axes = interaction.resizeAxes;
|
||
|
||
if (interaction.resizeAxes === 'x') {
|
||
this.dy = 0;
|
||
}
|
||
else if (interaction.resizeAxes === 'y') {
|
||
this.dx = 0;
|
||
}
|
||
}
|
||
}
|
||
else if (action === 'gesture') {
|
||
this.touches = [pointers[0], pointers[1]];
|
||
|
||
if (starting) {
|
||
this.distance = touchDistance(pointers, deltaSource);
|
||
this.box = touchBBox(pointers);
|
||
this.scale = 1;
|
||
this.ds = 0;
|
||
this.angle = touchAngle(pointers, undefined, deltaSource);
|
||
this.da = 0;
|
||
}
|
||
else if (ending || event instanceof InteractEvent) {
|
||
this.distance = interaction.prevEvent.distance;
|
||
this.box = interaction.prevEvent.box;
|
||
this.scale = interaction.prevEvent.scale;
|
||
this.ds = this.scale - 1;
|
||
this.angle = interaction.prevEvent.angle;
|
||
this.da = this.angle - interaction.gesture.startAngle;
|
||
}
|
||
else {
|
||
this.distance = touchDistance(pointers, deltaSource);
|
||
this.box = touchBBox(pointers);
|
||
this.scale = this.distance / interaction.gesture.startDistance;
|
||
this.angle = touchAngle(pointers, interaction.gesture.prevAngle, deltaSource);
|
||
|
||
this.ds = this.scale - interaction.gesture.prevScale;
|
||
this.da = this.angle - interaction.gesture.prevAngle;
|
||
}
|
||
}
|
||
|
||
if (starting) {
|
||
this.timeStamp = interaction.downTimes[0];
|
||
this.dt = 0;
|
||
this.duration = 0;
|
||
this.speed = 0;
|
||
this.velocityX = 0;
|
||
this.velocityY = 0;
|
||
}
|
||
else if (phase === 'inertiastart') {
|
||
this.timeStamp = interaction.prevEvent.timeStamp;
|
||
this.dt = interaction.prevEvent.dt;
|
||
this.duration = interaction.prevEvent.duration;
|
||
this.speed = interaction.prevEvent.speed;
|
||
this.velocityX = interaction.prevEvent.velocityX;
|
||
this.velocityY = interaction.prevEvent.velocityY;
|
||
}
|
||
else {
|
||
this.timeStamp = new Date().getTime();
|
||
this.dt = this.timeStamp - interaction.prevEvent.timeStamp;
|
||
this.duration = this.timeStamp - interaction.downTimes[0];
|
||
|
||
if (event instanceof InteractEvent) {
|
||
var dx = this[sourceX] - interaction.prevEvent[sourceX],
|
||
dy = this[sourceY] - interaction.prevEvent[sourceY],
|
||
dt = this.dt / 1000;
|
||
|
||
this.speed = hypot(dx, dy) / dt;
|
||
this.velocityX = dx / dt;
|
||
this.velocityY = dy / dt;
|
||
}
|
||
// if normal move or end event, use previous user event coords
|
||
else {
|
||
// speed and velocity in pixels per second
|
||
this.speed = interaction.pointerDelta[deltaSource].speed;
|
||
this.velocityX = interaction.pointerDelta[deltaSource].vx;
|
||
this.velocityY = interaction.pointerDelta[deltaSource].vy;
|
||
}
|
||
}
|
||
|
||
if ((ending || phase === 'inertiastart')
|
||
&& interaction.prevEvent.speed > 600 && this.timeStamp - interaction.prevEvent.timeStamp < 150) {
|
||
|
||
var angle = 180 * Math.atan2(interaction.prevEvent.velocityY, interaction.prevEvent.velocityX) / Math.PI,
|
||
overlap = 22.5;
|
||
|
||
if (angle < 0) {
|
||
angle += 360;
|
||
}
|
||
|
||
var left = 135 - overlap <= angle && angle < 225 + overlap,
|
||
up = 225 - overlap <= angle && angle < 315 + overlap,
|
||
|
||
right = !left && (315 - overlap <= angle || angle < 45 + overlap),
|
||
down = !up && 45 - overlap <= angle && angle < 135 + overlap;
|
||
|
||
this.swipe = {
|
||
up : up,
|
||
down : down,
|
||
left : left,
|
||
right: right,
|
||
angle: angle,
|
||
speed: interaction.prevEvent.speed,
|
||
velocity: {
|
||
x: interaction.prevEvent.velocityX,
|
||
y: interaction.prevEvent.velocityY
|
||
}
|
||
};
|
||
}
|
||
}
|
||
|
||
InteractEvent.prototype = {
|
||
preventDefault: blank,
|
||
stopImmediatePropagation: function () {
|
||
this.immediatePropagationStopped = this.propagationStopped = true;
|
||
},
|
||
stopPropagation: function () {
|
||
this.propagationStopped = true;
|
||
}
|
||
};
|
||
|
||
function preventOriginalDefault () {
|
||
this.originalEvent.preventDefault();
|
||
}
|
||
|
||
function getActionCursor (action) {
|
||
var cursor = '';
|
||
|
||
if (action.name === 'drag') {
|
||
cursor = actionCursors.drag;
|
||
}
|
||
if (action.name === 'resize') {
|
||
if (action.axis) {
|
||
cursor = actionCursors[action.name + action.axis];
|
||
}
|
||
else if (action.edges) {
|
||
var cursorKey = 'resize',
|
||
edgeNames = ['top', 'bottom', 'left', 'right'];
|
||
|
||
for (var i = 0; i < 4; i++) {
|
||
if (action.edges[edgeNames[i]]) {
|
||
cursorKey += edgeNames[i];
|
||
}
|
||
}
|
||
|
||
cursor = actionCursors[cursorKey];
|
||
}
|
||
}
|
||
|
||
return cursor;
|
||
}
|
||
|
||
function checkResizeEdge (name, value, page, element, interactableElement, rect, margin) {
|
||
// false, '', undefined, null
|
||
if (!value) { return false; }
|
||
|
||
// true value, use pointer coords and element rect
|
||
if (value === true) {
|
||
// if dimensions are negative, "switch" edges
|
||
var width = isNumber(rect.width)? rect.width : rect.right - rect.left,
|
||
height = isNumber(rect.height)? rect.height : rect.bottom - rect.top;
|
||
|
||
if (width < 0) {
|
||
if (name === 'left' ) { name = 'right'; }
|
||
else if (name === 'right') { name = 'left' ; }
|
||
}
|
||
if (height < 0) {
|
||
if (name === 'top' ) { name = 'bottom'; }
|
||
else if (name === 'bottom') { name = 'top' ; }
|
||
}
|
||
|
||
if (name === 'left' ) { return page.x < ((width >= 0? rect.left: rect.right ) + margin); }
|
||
if (name === 'top' ) { return page.y < ((height >= 0? rect.top : rect.bottom) + margin); }
|
||
|
||
if (name === 'right' ) { return page.x > ((width >= 0? rect.right : rect.left) - margin); }
|
||
if (name === 'bottom') { return page.y > ((height >= 0? rect.bottom: rect.top ) - margin); }
|
||
}
|
||
|
||
// the remaining checks require an element
|
||
if (!isElement(element)) { return false; }
|
||
|
||
return isElement(value)
|
||
// the value is an element to use as a resize handle
|
||
? value === element
|
||
// otherwise check if element matches value as selector
|
||
: matchesUpTo(element, value, interactableElement);
|
||
}
|
||
|
||
function defaultActionChecker (pointer, interaction, element) {
|
||
var rect = this.getRect(element),
|
||
shouldResize = false,
|
||
action = null,
|
||
resizeAxes = null,
|
||
resizeEdges,
|
||
page = extend({}, interaction.curCoords.page),
|
||
options = this.options;
|
||
|
||
if (!rect) { return null; }
|
||
|
||
if (actionIsEnabled.resize && options.resize.enabled) {
|
||
var resizeOptions = options.resize;
|
||
|
||
resizeEdges = {
|
||
left: false, right: false, top: false, bottom: false
|
||
};
|
||
|
||
// if using resize.edges
|
||
if (isObject(resizeOptions.edges)) {
|
||
for (var edge in resizeEdges) {
|
||
resizeEdges[edge] = checkResizeEdge(edge,
|
||
resizeOptions.edges[edge],
|
||
page,
|
||
interaction._eventTarget,
|
||
element,
|
||
rect,
|
||
resizeOptions.margin || margin);
|
||
}
|
||
|
||
resizeEdges.left = resizeEdges.left && !resizeEdges.right;
|
||
resizeEdges.top = resizeEdges.top && !resizeEdges.bottom;
|
||
|
||
shouldResize = resizeEdges.left || resizeEdges.right || resizeEdges.top || resizeEdges.bottom;
|
||
}
|
||
else {
|
||
var right = options.resize.axis !== 'y' && page.x > (rect.right - margin),
|
||
bottom = options.resize.axis !== 'x' && page.y > (rect.bottom - margin);
|
||
|
||
shouldResize = right || bottom;
|
||
resizeAxes = (right? 'x' : '') + (bottom? 'y' : '');
|
||
}
|
||
}
|
||
|
||
action = shouldResize
|
||
? 'resize'
|
||
: actionIsEnabled.drag && options.drag.enabled
|
||
? 'drag'
|
||
: null;
|
||
|
||
if (actionIsEnabled.gesture
|
||
&& interaction.pointerIds.length >=2
|
||
&& !(interaction.dragging || interaction.resizing)) {
|
||
action = 'gesture';
|
||
}
|
||
|
||
if (action) {
|
||
return {
|
||
name: action,
|
||
axis: resizeAxes,
|
||
edges: resizeEdges
|
||
};
|
||
}
|
||
|
||
return null;
|
||
}
|
||
|
||
// Check if action is enabled globally and the current target supports it
|
||
// If so, return the validated action. Otherwise, return null
|
||
function validateAction (action, interactable) {
|
||
if (!isObject(action)) { return null; }
|
||
|
||
var actionName = action.name,
|
||
options = interactable.options;
|
||
|
||
if (( (actionName === 'resize' && options.resize.enabled )
|
||
|| (actionName === 'drag' && options.drag.enabled )
|
||
|| (actionName === 'gesture' && options.gesture.enabled))
|
||
&& actionIsEnabled[actionName]) {
|
||
|
||
if (actionName === 'resize' || actionName === 'resizeyx') {
|
||
actionName = 'resizexy';
|
||
}
|
||
|
||
return action;
|
||
}
|
||
return null;
|
||
}
|
||
|
||
var listeners = {},
|
||
interactionListeners = [
|
||
'dragStart', 'dragMove', 'resizeStart', 'resizeMove', 'gestureStart', 'gestureMove',
|
||
'pointerOver', 'pointerOut', 'pointerHover', 'selectorDown',
|
||
'pointerDown', 'pointerMove', 'pointerUp', 'pointerCancel', 'pointerEnd',
|
||
'addPointer', 'removePointer', 'recordPointer', 'autoScrollMove'
|
||
];
|
||
|
||
for (var i = 0, len = interactionListeners.length; i < len; i++) {
|
||
var name = interactionListeners[i];
|
||
|
||
listeners[name] = doOnInteractions(name);
|
||
}
|
||
|
||
// bound to the interactable context when a DOM event
|
||
// listener is added to a selector interactable
|
||
function delegateListener (event, useCapture) {
|
||
var fakeEvent = {},
|
||
delegated = delegatedEvents[event.type],
|
||
eventTarget = getActualElement(event.path
|
||
? event.path[0]
|
||
: event.target),
|
||
element = eventTarget;
|
||
|
||
useCapture = useCapture? true: false;
|
||
|
||
// duplicate the event so that currentTarget can be changed
|
||
for (var prop in event) {
|
||
fakeEvent[prop] = event[prop];
|
||
}
|
||
|
||
fakeEvent.originalEvent = event;
|
||
fakeEvent.preventDefault = preventOriginalDefault;
|
||
|
||
// climb up document tree looking for selector matches
|
||
while (isElement(element)) {
|
||
for (var i = 0; i < delegated.selectors.length; i++) {
|
||
var selector = delegated.selectors[i],
|
||
context = delegated.contexts[i];
|
||
|
||
if (matchesSelector(element, selector)
|
||
&& nodeContains(context, eventTarget)
|
||
&& nodeContains(context, element)) {
|
||
|
||
var listeners = delegated.listeners[i];
|
||
|
||
fakeEvent.currentTarget = element;
|
||
|
||
for (var j = 0; j < listeners.length; j++) {
|
||
if (listeners[j][1] === useCapture) {
|
||
listeners[j][0](fakeEvent);
|
||
}
|
||
}
|
||
}
|
||
}
|
||
|
||
element = parentElement(element);
|
||
}
|
||
}
|
||
|
||
function delegateUseCapture (event) {
|
||
return delegateListener.call(this, event, true);
|
||
}
|
||
|
||
interactables.indexOfElement = function indexOfElement (element, context) {
|
||
context = context || document;
|
||
|
||
for (var i = 0; i < this.length; i++) {
|
||
var interactable = this[i];
|
||
|
||
if ((interactable.selector === element
|
||
&& (interactable._context === context))
|
||
|| (!interactable.selector && interactable._element === element)) {
|
||
|
||
return i;
|
||
}
|
||
}
|
||
return -1;
|
||
};
|
||
|
||
interactables.get = function interactableGet (element, options) {
|
||
return this[this.indexOfElement(element, options && options.context)];
|
||
};
|
||
|
||
interactables.forEachSelector = function (callback) {
|
||
for (var i = 0; i < this.length; i++) {
|
||
var interactable = this[i];
|
||
|
||
if (!interactable.selector) {
|
||
continue;
|
||
}
|
||
|
||
var ret = callback(interactable, interactable.selector, interactable._context, i, this);
|
||
|
||
if (ret !== undefined) {
|
||
return ret;
|
||
}
|
||
}
|
||
};
|
||
|
||
/*\
|
||
* interact
|
||
[ method ]
|
||
*
|
||
* The methods of this variable can be used to set elements as
|
||
* interactables and also to change various default settings.
|
||
*
|
||
* Calling it as a function and passing an element or a valid CSS selector
|
||
* string returns an Interactable object which has various methods to
|
||
* configure it.
|
||
*
|
||
- element (Element | string) The HTML or SVG Element to interact with or CSS selector
|
||
= (object) An @Interactable
|
||
*
|
||
> Usage
|
||
| interact(document.getElementById('draggable')).draggable(true);
|
||
|
|
||
| var rectables = interact('rect');
|
||
| rectables
|
||
| .gesturable(true)
|
||
| .on('gesturemove', function (event) {
|
||
| // something cool...
|
||
| })
|
||
| .autoScroll(true);
|
||
\*/
|
||
function interact (element, options) {
|
||
return interactables.get(element, options) || new Interactable(element, options);
|
||
}
|
||
|
||
/*\
|
||
* Interactable
|
||
[ property ]
|
||
**
|
||
* Object type returned by @interact
|
||
\*/
|
||
function Interactable (element, options) {
|
||
this._element = element;
|
||
this._iEvents = this._iEvents || {};
|
||
|
||
var _window;
|
||
|
||
if (trySelector(element)) {
|
||
this.selector = element;
|
||
|
||
var context = options && options.context;
|
||
|
||
_window = context? getWindow(context) : window;
|
||
|
||
if (context && (_window.Node
|
||
? context instanceof _window.Node
|
||
: (isElement(context) || context === _window.document))) {
|
||
|
||
this._context = context;
|
||
}
|
||
}
|
||
else {
|
||
_window = getWindow(element);
|
||
|
||
if (isElement(element, _window)) {
|
||
|
||
if (supportsPointerEvent) {
|
||
events.add(this._element, pEventTypes.down, listeners.pointerDown );
|
||
events.add(this._element, pEventTypes.move, listeners.pointerHover);
|
||
}
|
||
else {
|
||
events.add(this._element, 'mousedown' , listeners.pointerDown );
|
||
events.add(this._element, 'mousemove' , listeners.pointerHover);
|
||
events.add(this._element, 'touchstart', listeners.pointerDown );
|
||
events.add(this._element, 'touchmove' , listeners.pointerHover);
|
||
}
|
||
}
|
||
}
|
||
|
||
this._doc = _window.document;
|
||
|
||
if (!contains(documents, this._doc)) {
|
||
listenToDocument(this._doc);
|
||
}
|
||
|
||
interactables.push(this);
|
||
|
||
this.set(options);
|
||
}
|
||
|
||
Interactable.prototype = {
|
||
setOnEvents: function (action, phases) {
|
||
if (action === 'drop') {
|
||
if (isFunction(phases.ondrop) ) { this.ondrop = phases.ondrop ; }
|
||
if (isFunction(phases.ondropactivate) ) { this.ondropactivate = phases.ondropactivate ; }
|
||
if (isFunction(phases.ondropdeactivate)) { this.ondropdeactivate = phases.ondropdeactivate; }
|
||
if (isFunction(phases.ondragenter) ) { this.ondragenter = phases.ondragenter ; }
|
||
if (isFunction(phases.ondragleave) ) { this.ondragleave = phases.ondragleave ; }
|
||
if (isFunction(phases.ondropmove) ) { this.ondropmove = phases.ondropmove ; }
|
||
}
|
||
else {
|
||
action = 'on' + action;
|
||
|
||
if (isFunction(phases.onstart) ) { this[action + 'start' ] = phases.onstart ; }
|
||
if (isFunction(phases.onmove) ) { this[action + 'move' ] = phases.onmove ; }
|
||
if (isFunction(phases.onend) ) { this[action + 'end' ] = phases.onend ; }
|
||
if (isFunction(phases.oninertiastart)) { this[action + 'inertiastart' ] = phases.oninertiastart ; }
|
||
}
|
||
|
||
return this;
|
||
},
|
||
|
||
/*\
|
||
* Interactable.draggable
|
||
[ method ]
|
||
*
|
||
* Gets or sets whether drag actions can be performed on the
|
||
* Interactable
|
||
*
|
||
= (boolean) Indicates if this can be the target of drag events
|
||
| var isDraggable = interact('ul li').draggable();
|
||
* or
|
||
- options (boolean | object) #optional true/false or An object with event listeners to be fired on drag events (object makes the Interactable draggable)
|
||
= (object) This Interactable
|
||
| interact(element).draggable({
|
||
| onstart: function (event) {},
|
||
| onmove : function (event) {},
|
||
| onend : function (event) {},
|
||
|
|
||
| // the axis in which the first movement must be
|
||
| // for the drag sequence to start
|
||
| // 'xy' by default - any direction
|
||
| axis: 'x' || 'y' || 'xy',
|
||
|
|
||
| // max number of drags that can happen concurrently
|
||
| // with elements of this Interactable. Infinity by default
|
||
| max: Infinity,
|
||
|
|
||
| // max number of drags that can target the same element+Interactable
|
||
| // 1 by default
|
||
| maxPerElement: 2
|
||
| });
|
||
\*/
|
||
draggable: function (options) {
|
||
if (isObject(options)) {
|
||
this.options.drag.enabled = options.enabled === false? false: true;
|
||
this.setPerAction('drag', options);
|
||
this.setOnEvents('drag', options);
|
||
|
||
if (/^x$|^y$|^xy$/.test(options.axis)) {
|
||
this.options.drag.axis = options.axis;
|
||
}
|
||
else if (options.axis === null) {
|
||
delete this.options.drag.axis;
|
||
}
|
||
|
||
return this;
|
||
}
|
||
|
||
if (isBool(options)) {
|
||
this.options.drag.enabled = options;
|
||
|
||
return this;
|
||
}
|
||
|
||
return this.options.drag;
|
||
},
|
||
|
||
setPerAction: function (action, options) {
|
||
// for all the default per-action options
|
||
for (var option in options) {
|
||
// if this option exists for this action
|
||
if (option in defaultOptions[action]) {
|
||
// if the option in the options arg is an object value
|
||
if (isObject(options[option])) {
|
||
// duplicate the object
|
||
this.options[action][option] = extend(this.options[action][option] || {}, options[option]);
|
||
|
||
if (isObject(defaultOptions.perAction[option]) && 'enabled' in defaultOptions.perAction[option]) {
|
||
this.options[action][option].enabled = options[option].enabled === false? false : true;
|
||
}
|
||
}
|
||
else if (isBool(options[option]) && isObject(defaultOptions.perAction[option])) {
|
||
this.options[action][option].enabled = options[option];
|
||
}
|
||
else if (options[option] !== undefined) {
|
||
// or if it's not undefined, do a plain assignment
|
||
this.options[action][option] = options[option];
|
||
}
|
||
}
|
||
}
|
||
},
|
||
|
||
/*\
|
||
* Interactable.dropzone
|
||
[ method ]
|
||
*
|
||
* Returns or sets whether elements can be dropped onto this
|
||
* Interactable to trigger drop events
|
||
*
|
||
* Dropzones can receive the following events:
|
||
* - `dropactivate` and `dropdeactivate` when an acceptable drag starts and ends
|
||
* - `dragenter` and `dragleave` when a draggable enters and leaves the dropzone
|
||
* - `dragmove` when a draggable that has entered the dropzone is moved
|
||
* - `drop` when a draggable is dropped into this dropzone
|
||
*
|
||
* Use the `accept` option to allow only elements that match the given CSS selector or element.
|
||
*
|
||
* Use the `overlap` option to set how drops are checked for. The allowed values are:
|
||
* - `'pointer'`, the pointer must be over the dropzone (default)
|
||
* - `'center'`, the draggable element's center must be over the dropzone
|
||
* - a number from 0-1 which is the `(intersection area) / (draggable area)`.
|
||
* e.g. `0.5` for drop to happen when half of the area of the
|
||
* draggable is over the dropzone
|
||
*
|
||
- options (boolean | object | null) #optional The new value to be set.
|
||
| interact('.drop').dropzone({
|
||
| accept: '.can-drop' || document.getElementById('single-drop'),
|
||
| overlap: 'pointer' || 'center' || zeroToOne
|
||
| }
|
||
= (boolean | object) The current setting or this Interactable
|
||
\*/
|
||
dropzone: function (options) {
|
||
if (isObject(options)) {
|
||
this.options.drop.enabled = options.enabled === false? false: true;
|
||
this.setOnEvents('drop', options);
|
||
|
||
if (/^(pointer|center)$/.test(options.overlap)) {
|
||
this.options.drop.overlap = options.overlap;
|
||
}
|
||
else if (isNumber(options.overlap)) {
|
||
this.options.drop.overlap = Math.max(Math.min(1, options.overlap), 0);
|
||
}
|
||
if ('accept' in options) {
|
||
this.options.drop.accept = options.accept;
|
||
}
|
||
if ('checker' in options) {
|
||
this.options.drop.checker = options.checker;
|
||
}
|
||
|
||
return this;
|
||
}
|
||
|
||
if (isBool(options)) {
|
||
this.options.drop.enabled = options;
|
||
|
||
return this;
|
||
}
|
||
|
||
return this.options.drop;
|
||
},
|
||
|
||
dropCheck: function (dragEvent, event, draggable, draggableElement, dropElement, rect) {
|
||
var dropped = false;
|
||
|
||
// if the dropzone has no rect (eg. display: none)
|
||
// call the custom dropChecker or just return false
|
||
if (!(rect = rect || this.getRect(dropElement))) {
|
||
return (this.options.drop.checker
|
||
? this.options.drop.checker(dragEvent, event, dropped, this, dropElement, draggable, draggableElement)
|
||
: false);
|
||
}
|
||
|
||
var dropOverlap = this.options.drop.overlap;
|
||
|
||
if (dropOverlap === 'pointer') {
|
||
var page = getPageXY(dragEvent),
|
||
origin = getOriginXY(draggable, draggableElement),
|
||
horizontal,
|
||
vertical;
|
||
|
||
page.x += origin.x;
|
||
page.y += origin.y;
|
||
|
||
horizontal = (page.x > rect.left) && (page.x < rect.right);
|
||
vertical = (page.y > rect.top ) && (page.y < rect.bottom);
|
||
|
||
dropped = horizontal && vertical;
|
||
}
|
||
|
||
var dragRect = draggable.getRect(draggableElement);
|
||
|
||
if (dropOverlap === 'center') {
|
||
var cx = dragRect.left + dragRect.width / 2,
|
||
cy = dragRect.top + dragRect.height / 2;
|
||
|
||
dropped = cx >= rect.left && cx <= rect.right && cy >= rect.top && cy <= rect.bottom;
|
||
}
|
||
|
||
if (isNumber(dropOverlap)) {
|
||
var overlapArea = (Math.max(0, Math.min(rect.right , dragRect.right ) - Math.max(rect.left, dragRect.left))
|
||
* Math.max(0, Math.min(rect.bottom, dragRect.bottom) - Math.max(rect.top , dragRect.top ))),
|
||
overlapRatio = overlapArea / (dragRect.width * dragRect.height);
|
||
|
||
dropped = overlapRatio >= dropOverlap;
|
||
}
|
||
|
||
if (this.options.drop.checker) {
|
||
dropped = this.options.drop.checker(dragEvent, event, dropped, this, dropElement, draggable, draggableElement);
|
||
}
|
||
|
||
return dropped;
|
||
},
|
||
|
||
/*\
|
||
* Interactable.dropChecker
|
||
[ method ]
|
||
*
|
||
* DEPRECATED. Use interactable.dropzone({ checker: function... }) instead.
|
||
*
|
||
* Gets or sets the function used to check if a dragged element is
|
||
* over this Interactable.
|
||
*
|
||
- checker (function) #optional The function that will be called when checking for a drop
|
||
= (Function | Interactable) The checker function or this Interactable
|
||
*
|
||
* The checker function takes the following arguments:
|
||
*
|
||
- dragEvent (InteractEvent) The related dragmove or dragend event
|
||
- event (TouchEvent | PointerEvent | MouseEvent) The user move/up/end Event related to the dragEvent
|
||
- dropped (boolean) The value from the default drop checker
|
||
- dropzone (Interactable) The dropzone interactable
|
||
- dropElement (Element) The dropzone element
|
||
- draggable (Interactable) The Interactable being dragged
|
||
- draggableElement (Element) The actual element that's being dragged
|
||
*
|
||
> Usage:
|
||
| interact(target)
|
||
| .dropChecker(function(dragEvent, // related dragmove or dragend event
|
||
| event, // TouchEvent/PointerEvent/MouseEvent
|
||
| dropped, // bool result of the default checker
|
||
| dropzone, // dropzone Interactable
|
||
| dropElement, // dropzone elemnt
|
||
| draggable, // draggable Interactable
|
||
| draggableElement) {// draggable element
|
||
|
|
||
| return dropped && event.target.hasAttribute('allow-drop');
|
||
| }
|
||
\*/
|
||
dropChecker: function (checker) {
|
||
if (isFunction(checker)) {
|
||
this.options.drop.checker = checker;
|
||
|
||
return this;
|
||
}
|
||
if (checker === null) {
|
||
delete this.options.getRect;
|
||
|
||
return this;
|
||
}
|
||
|
||
return this.options.drop.checker;
|
||
},
|
||
|
||
/*\
|
||
* Interactable.accept
|
||
[ method ]
|
||
*
|
||
* Deprecated. add an `accept` property to the options object passed to
|
||
* @Interactable.dropzone instead.
|
||
*
|
||
* Gets or sets the Element or CSS selector match that this
|
||
* Interactable accepts if it is a dropzone.
|
||
*
|
||
- newValue (Element | string | null) #optional
|
||
* If it is an Element, then only that element can be dropped into this dropzone.
|
||
* If it is a string, the element being dragged must match it as a selector.
|
||
* If it is null, the accept options is cleared - it accepts any element.
|
||
*
|
||
= (string | Element | null | Interactable) The current accept option if given `undefined` or this Interactable
|
||
\*/
|
||
accept: function (newValue) {
|
||
if (isElement(newValue)) {
|
||
this.options.drop.accept = newValue;
|
||
|
||
return this;
|
||
}
|
||
|
||
// test if it is a valid CSS selector
|
||
if (trySelector(newValue)) {
|
||
this.options.drop.accept = newValue;
|
||
|
||
return this;
|
||
}
|
||
|
||
if (newValue === null) {
|
||
delete this.options.drop.accept;
|
||
|
||
return this;
|
||
}
|
||
|
||
return this.options.drop.accept;
|
||
},
|
||
|
||
/*\
|
||
* Interactable.resizable
|
||
[ method ]
|
||
*
|
||
* Gets or sets whether resize actions can be performed on the
|
||
* Interactable
|
||
*
|
||
= (boolean) Indicates if this can be the target of resize elements
|
||
| var isResizeable = interact('input[type=text]').resizable();
|
||
* or
|
||
- options (boolean | object) #optional true/false or An object with event listeners to be fired on resize events (object makes the Interactable resizable)
|
||
= (object) This Interactable
|
||
| interact(element).resizable({
|
||
| onstart: function (event) {},
|
||
| onmove : function (event) {},
|
||
| onend : function (event) {},
|
||
|
|
||
| edges: {
|
||
| top : true, // Use pointer coords to check for resize.
|
||
| left : false, // Disable resizing from left edge.
|
||
| bottom: '.resize-s',// Resize if pointer target matches selector
|
||
| right : handleEl // Resize if pointer target is the given Element
|
||
| },
|
||
|
|
||
| // Width and height can be adjusted independently. When `true`, width and
|
||
| // height are adjusted at a 1:1 ratio.
|
||
| square: false,
|
||
|
|
||
| // Width and height can be adjusted independently. When `true`, width and
|
||
| // height maintain the aspect ratio they had when resizing started.
|
||
| preserveAspectRatio: false,
|
||
|
|
||
| // a value of 'none' will limit the resize rect to a minimum of 0x0
|
||
| // 'negate' will allow the rect to have negative width/height
|
||
| // 'reposition' will keep the width/height positive by swapping
|
||
| // the top and bottom edges and/or swapping the left and right edges
|
||
| invert: 'none' || 'negate' || 'reposition'
|
||
|
|
||
| // limit multiple resizes.
|
||
| // See the explanation in the @Interactable.draggable example
|
||
| max: Infinity,
|
||
| maxPerElement: 1,
|
||
| });
|
||
\*/
|
||
resizable: function (options) {
|
||
if (isObject(options)) {
|
||
this.options.resize.enabled = options.enabled === false? false: true;
|
||
this.setPerAction('resize', options);
|
||
this.setOnEvents('resize', options);
|
||
|
||
if (/^x$|^y$|^xy$/.test(options.axis)) {
|
||
this.options.resize.axis = options.axis;
|
||
}
|
||
else if (options.axis === null) {
|
||
this.options.resize.axis = defaultOptions.resize.axis;
|
||
}
|
||
|
||
if (isBool(options.preserveAspectRatio)) {
|
||
this.options.resize.preserveAspectRatio = options.preserveAspectRatio;
|
||
}
|
||
else if (isBool(options.square)) {
|
||
this.options.resize.square = options.square;
|
||
}
|
||
|
||
return this;
|
||
}
|
||
if (isBool(options)) {
|
||
this.options.resize.enabled = options;
|
||
|
||
return this;
|
||
}
|
||
return this.options.resize;
|
||
},
|
||
|
||
/*\
|
||
* Interactable.squareResize
|
||
[ method ]
|
||
*
|
||
* Deprecated. Add a `square: true || false` property to @Interactable.resizable instead
|
||
*
|
||
* Gets or sets whether resizing is forced 1:1 aspect
|
||
*
|
||
= (boolean) Current setting
|
||
*
|
||
* or
|
||
*
|
||
- newValue (boolean) #optional
|
||
= (object) this Interactable
|
||
\*/
|
||
squareResize: function (newValue) {
|
||
if (isBool(newValue)) {
|
||
this.options.resize.square = newValue;
|
||
|
||
return this;
|
||
}
|
||
|
||
if (newValue === null) {
|
||
delete this.options.resize.square;
|
||
|
||
return this;
|
||
}
|
||
|
||
return this.options.resize.square;
|
||
},
|
||
|
||
/*\
|
||
* Interactable.gesturable
|
||
[ method ]
|
||
*
|
||
* Gets or sets whether multitouch gestures can be performed on the
|
||
* Interactable's element
|
||
*
|
||
= (boolean) Indicates if this can be the target of gesture events
|
||
| var isGestureable = interact(element).gesturable();
|
||
* or
|
||
- options (boolean | object) #optional true/false or An object with event listeners to be fired on gesture events (makes the Interactable gesturable)
|
||
= (object) this Interactable
|
||
| interact(element).gesturable({
|
||
| onstart: function (event) {},
|
||
| onmove : function (event) {},
|
||
| onend : function (event) {},
|
||
|
|
||
| // limit multiple gestures.
|
||
| // See the explanation in @Interactable.draggable example
|
||
| max: Infinity,
|
||
| maxPerElement: 1,
|
||
| });
|
||
\*/
|
||
gesturable: function (options) {
|
||
if (isObject(options)) {
|
||
this.options.gesture.enabled = options.enabled === false? false: true;
|
||
this.setPerAction('gesture', options);
|
||
this.setOnEvents('gesture', options);
|
||
|
||
return this;
|
||
}
|
||
|
||
if (isBool(options)) {
|
||
this.options.gesture.enabled = options;
|
||
|
||
return this;
|
||
}
|
||
|
||
return this.options.gesture;
|
||
},
|
||
|
||
/*\
|
||
* Interactable.autoScroll
|
||
[ method ]
|
||
**
|
||
* Deprecated. Add an `autoscroll` property to the options object
|
||
* passed to @Interactable.draggable or @Interactable.resizable instead.
|
||
*
|
||
* Returns or sets whether dragging and resizing near the edges of the
|
||
* window/container trigger autoScroll for this Interactable
|
||
*
|
||
= (object) Object with autoScroll properties
|
||
*
|
||
* or
|
||
*
|
||
- options (object | boolean) #optional
|
||
* options can be:
|
||
* - an object with margin, distance and interval properties,
|
||
* - true or false to enable or disable autoScroll or
|
||
= (Interactable) this Interactable
|
||
\*/
|
||
autoScroll: function (options) {
|
||
if (isObject(options)) {
|
||
options = extend({ actions: ['drag', 'resize']}, options);
|
||
}
|
||
else if (isBool(options)) {
|
||
options = { actions: ['drag', 'resize'], enabled: options };
|
||
}
|
||
|
||
return this.setOptions('autoScroll', options);
|
||
},
|
||
|
||
/*\
|
||
* Interactable.snap
|
||
[ method ]
|
||
**
|
||
* Deprecated. Add a `snap` property to the options object passed
|
||
* to @Interactable.draggable or @Interactable.resizable instead.
|
||
*
|
||
* Returns or sets if and how action coordinates are snapped. By
|
||
* default, snapping is relative to the pointer coordinates. You can
|
||
* change this by setting the
|
||
* [`elementOrigin`](https://github.com/taye/interact.js/pull/72).
|
||
**
|
||
= (boolean | object) `false` if snap is disabled; object with snap properties if snap is enabled
|
||
**
|
||
* or
|
||
**
|
||
- options (object | boolean | null) #optional
|
||
= (Interactable) this Interactable
|
||
> Usage
|
||
| interact(document.querySelector('#thing')).snap({
|
||
| targets: [
|
||
| // snap to this specific point
|
||
| {
|
||
| x: 100,
|
||
| y: 100,
|
||
| range: 25
|
||
| },
|
||
| // give this function the x and y page coords and snap to the object returned
|
||
| function (x, y) {
|
||
| return {
|
||
| x: x,
|
||
| y: (75 + 50 * Math.sin(x * 0.04)),
|
||
| range: 40
|
||
| };
|
||
| },
|
||
| // create a function that snaps to a grid
|
||
| interact.createSnapGrid({
|
||
| x: 50,
|
||
| y: 50,
|
||
| range: 10, // optional
|
||
| offset: { x: 5, y: 10 } // optional
|
||
| })
|
||
| ],
|
||
| // do not snap during normal movement.
|
||
| // Instead, trigger only one snapped move event
|
||
| // immediately before the end event.
|
||
| endOnly: true,
|
||
|
|
||
| relativePoints: [
|
||
| { x: 0, y: 0 }, // snap relative to the top left of the element
|
||
| { x: 1, y: 1 }, // and also to the bottom right
|
||
| ],
|
||
|
|
||
| // offset the snap target coordinates
|
||
| // can be an object with x/y or 'startCoords'
|
||
| offset: { x: 50, y: 50 }
|
||
| }
|
||
| });
|
||
\*/
|
||
snap: function (options) {
|
||
var ret = this.setOptions('snap', options);
|
||
|
||
if (ret === this) { return this; }
|
||
|
||
return ret.drag;
|
||
},
|
||
|
||
setOptions: function (option, options) {
|
||
var actions = options && isArray(options.actions)
|
||
? options.actions
|
||
: ['drag'];
|
||
|
||
var i;
|
||
|
||
if (isObject(options) || isBool(options)) {
|
||
for (i = 0; i < actions.length; i++) {
|
||
var action = /resize/.test(actions[i])? 'resize' : actions[i];
|
||
|
||
if (!isObject(this.options[action])) { continue; }
|
||
|
||
var thisOption = this.options[action][option];
|
||
|
||
if (isObject(options)) {
|
||
extend(thisOption, options);
|
||
thisOption.enabled = options.enabled === false? false: true;
|
||
|
||
if (option === 'snap') {
|
||
if (thisOption.mode === 'grid') {
|
||
thisOption.targets = [
|
||
interact.createSnapGrid(extend({
|
||
offset: thisOption.gridOffset || { x: 0, y: 0 }
|
||
}, thisOption.grid || {}))
|
||
];
|
||
}
|
||
else if (thisOption.mode === 'anchor') {
|
||
thisOption.targets = thisOption.anchors;
|
||
}
|
||
else if (thisOption.mode === 'path') {
|
||
thisOption.targets = thisOption.paths;
|
||
}
|
||
|
||
if ('elementOrigin' in options) {
|
||
thisOption.relativePoints = [options.elementOrigin];
|
||
}
|
||
}
|
||
}
|
||
else if (isBool(options)) {
|
||
thisOption.enabled = options;
|
||
}
|
||
}
|
||
|
||
return this;
|
||
}
|
||
|
||
var ret = {},
|
||
allActions = ['drag', 'resize', 'gesture'];
|
||
|
||
for (i = 0; i < allActions.length; i++) {
|
||
if (option in defaultOptions[allActions[i]]) {
|
||
ret[allActions[i]] = this.options[allActions[i]][option];
|
||
}
|
||
}
|
||
|
||
return ret;
|
||
},
|
||
|
||
|
||
/*\
|
||
* Interactable.inertia
|
||
[ method ]
|
||
**
|
||
* Deprecated. Add an `inertia` property to the options object passed
|
||
* to @Interactable.draggable or @Interactable.resizable instead.
|
||
*
|
||
* Returns or sets if and how events continue to run after the pointer is released
|
||
**
|
||
= (boolean | object) `false` if inertia is disabled; `object` with inertia properties if inertia is enabled
|
||
**
|
||
* or
|
||
**
|
||
- options (object | boolean | null) #optional
|
||
= (Interactable) this Interactable
|
||
> Usage
|
||
| // enable and use default settings
|
||
| interact(element).inertia(true);
|
||
|
|
||
| // enable and use custom settings
|
||
| interact(element).inertia({
|
||
| // value greater than 0
|
||
| // high values slow the object down more quickly
|
||
| resistance : 16,
|
||
|
|
||
| // the minimum launch speed (pixels per second) that results in inertia start
|
||
| minSpeed : 200,
|
||
|
|
||
| // inertia will stop when the object slows down to this speed
|
||
| endSpeed : 20,
|
||
|
|
||
| // boolean; should actions be resumed when the pointer goes down during inertia
|
||
| allowResume : true,
|
||
|
|
||
| // boolean; should the jump when resuming from inertia be ignored in event.dx/dy
|
||
| zeroResumeDelta: false,
|
||
|
|
||
| // if snap/restrict are set to be endOnly and inertia is enabled, releasing
|
||
| // the pointer without triggering inertia will animate from the release
|
||
| // point to the snaped/restricted point in the given amount of time (ms)
|
||
| smoothEndDuration: 300,
|
||
|
|
||
| // an array of action types that can have inertia (no gesture)
|
||
| actions : ['drag', 'resize']
|
||
| });
|
||
|
|
||
| // reset custom settings and use all defaults
|
||
| interact(element).inertia(null);
|
||
\*/
|
||
inertia: function (options) {
|
||
var ret = this.setOptions('inertia', options);
|
||
|
||
if (ret === this) { return this; }
|
||
|
||
return ret.drag;
|
||
},
|
||
|
||
getAction: function (pointer, event, interaction, element) {
|
||
var action = this.defaultActionChecker(pointer, interaction, element);
|
||
|
||
if (this.options.actionChecker) {
|
||
return this.options.actionChecker(pointer, event, action, this, element, interaction);
|
||
}
|
||
|
||
return action;
|
||
},
|
||
|
||
defaultActionChecker: defaultActionChecker,
|
||
|
||
/*\
|
||
* Interactable.actionChecker
|
||
[ method ]
|
||
*
|
||
* Gets or sets the function used to check action to be performed on
|
||
* pointerDown
|
||
*
|
||
- checker (function | null) #optional A function which takes a pointer event, defaultAction string, interactable, element and interaction as parameters and returns an object with name property 'drag' 'resize' or 'gesture' and optionally an `edges` object with boolean 'top', 'left', 'bottom' and right props.
|
||
= (Function | Interactable) The checker function or this Interactable
|
||
*
|
||
| interact('.resize-drag')
|
||
| .resizable(true)
|
||
| .draggable(true)
|
||
| .actionChecker(function (pointer, event, action, interactable, element, interaction) {
|
||
|
|
||
| if (interact.matchesSelector(event.target, '.drag-handle') {
|
||
| // force drag with handle target
|
||
| action.name = drag;
|
||
| }
|
||
| else {
|
||
| // resize from the top and right edges
|
||
| action.name = 'resize';
|
||
| action.edges = { top: true, right: true };
|
||
| }
|
||
|
|
||
| return action;
|
||
| });
|
||
\*/
|
||
actionChecker: function (checker) {
|
||
if (isFunction(checker)) {
|
||
this.options.actionChecker = checker;
|
||
|
||
return this;
|
||
}
|
||
|
||
if (checker === null) {
|
||
delete this.options.actionChecker;
|
||
|
||
return this;
|
||
}
|
||
|
||
return this.options.actionChecker;
|
||
},
|
||
|
||
/*\
|
||
* Interactable.getRect
|
||
[ method ]
|
||
*
|
||
* The default function to get an Interactables bounding rect. Can be
|
||
* overridden using @Interactable.rectChecker.
|
||
*
|
||
- element (Element) #optional The element to measure.
|
||
= (object) The object's bounding rectangle.
|
||
o {
|
||
o top : 0,
|
||
o left : 0,
|
||
o bottom: 0,
|
||
o right : 0,
|
||
o width : 0,
|
||
o height: 0
|
||
o }
|
||
\*/
|
||
getRect: function rectCheck (element) {
|
||
element = element || this._element;
|
||
|
||
if (this.selector && !(isElement(element))) {
|
||
element = this._context.querySelector(this.selector);
|
||
}
|
||
|
||
return getElementRect(element);
|
||
},
|
||
|
||
/*\
|
||
* Interactable.rectChecker
|
||
[ method ]
|
||
*
|
||
* Returns or sets the function used to calculate the interactable's
|
||
* element's rectangle
|
||
*
|
||
- checker (function) #optional A function which returns this Interactable's bounding rectangle. See @Interactable.getRect
|
||
= (function | object) The checker function or this Interactable
|
||
\*/
|
||
rectChecker: function (checker) {
|
||
if (isFunction(checker)) {
|
||
this.getRect = checker;
|
||
|
||
return this;
|
||
}
|
||
|
||
if (checker === null) {
|
||
delete this.options.getRect;
|
||
|
||
return this;
|
||
}
|
||
|
||
return this.getRect;
|
||
},
|
||
|
||
/*\
|
||
* Interactable.styleCursor
|
||
[ method ]
|
||
*
|
||
* Returns or sets whether the action that would be performed when the
|
||
* mouse on the element are checked on `mousemove` so that the cursor
|
||
* may be styled appropriately
|
||
*
|
||
- newValue (boolean) #optional
|
||
= (boolean | Interactable) The current setting or this Interactable
|
||
\*/
|
||
styleCursor: function (newValue) {
|
||
if (isBool(newValue)) {
|
||
this.options.styleCursor = newValue;
|
||
|
||
return this;
|
||
}
|
||
|
||
if (newValue === null) {
|
||
delete this.options.styleCursor;
|
||
|
||
return this;
|
||
}
|
||
|
||
return this.options.styleCursor;
|
||
},
|
||
|
||
/*\
|
||
* Interactable.preventDefault
|
||
[ method ]
|
||
*
|
||
* Returns or sets whether to prevent the browser's default behaviour
|
||
* in response to pointer events. Can be set to:
|
||
* - `'always'` to always prevent
|
||
* - `'never'` to never prevent
|
||
* - `'auto'` to let interact.js try to determine what would be best
|
||
*
|
||
- newValue (string) #optional `true`, `false` or `'auto'`
|
||
= (string | Interactable) The current setting or this Interactable
|
||
\*/
|
||
preventDefault: function (newValue) {
|
||
if (/^(always|never|auto)$/.test(newValue)) {
|
||
this.options.preventDefault = newValue;
|
||
return this;
|
||
}
|
||
|
||
if (isBool(newValue)) {
|
||
this.options.preventDefault = newValue? 'always' : 'never';
|
||
return this;
|
||
}
|
||
|
||
return this.options.preventDefault;
|
||
},
|
||
|
||
/*\
|
||
* Interactable.origin
|
||
[ method ]
|
||
*
|
||
* Gets or sets the origin of the Interactable's element. The x and y
|
||
* of the origin will be subtracted from action event coordinates.
|
||
*
|
||
- origin (object | string) #optional An object eg. { x: 0, y: 0 } or string 'parent', 'self' or any CSS selector
|
||
* OR
|
||
- origin (Element) #optional An HTML or SVG Element whose rect will be used
|
||
**
|
||
= (object) The current origin or this Interactable
|
||
\*/
|
||
origin: function (newValue) {
|
||
if (trySelector(newValue)) {
|
||
this.options.origin = newValue;
|
||
return this;
|
||
}
|
||
else if (isObject(newValue)) {
|
||
this.options.origin = newValue;
|
||
return this;
|
||
}
|
||
|
||
return this.options.origin;
|
||
},
|
||
|
||
/*\
|
||
* Interactable.deltaSource
|
||
[ method ]
|
||
*
|
||
* Returns or sets the mouse coordinate types used to calculate the
|
||
* movement of the pointer.
|
||
*
|
||
- newValue (string) #optional Use 'client' if you will be scrolling while interacting; Use 'page' if you want autoScroll to work
|
||
= (string | object) The current deltaSource or this Interactable
|
||
\*/
|
||
deltaSource: function (newValue) {
|
||
if (newValue === 'page' || newValue === 'client') {
|
||
this.options.deltaSource = newValue;
|
||
|
||
return this;
|
||
}
|
||
|
||
return this.options.deltaSource;
|
||
},
|
||
|
||
/*\
|
||
* Interactable.restrict
|
||
[ method ]
|
||
**
|
||
* Deprecated. Add a `restrict` property to the options object passed to
|
||
* @Interactable.draggable, @Interactable.resizable or @Interactable.gesturable instead.
|
||
*
|
||
* Returns or sets the rectangles within which actions on this
|
||
* interactable (after snap calculations) are restricted. By default,
|
||
* restricting is relative to the pointer coordinates. You can change
|
||
* this by setting the
|
||
* [`elementRect`](https://github.com/taye/interact.js/pull/72).
|
||
**
|
||
- options (object) #optional an object with keys drag, resize, and/or gesture whose values are rects, Elements, CSS selectors, or 'parent' or 'self'
|
||
= (object) The current restrictions object or this Interactable
|
||
**
|
||
| interact(element).restrict({
|
||
| // the rect will be `interact.getElementRect(element.parentNode)`
|
||
| drag: element.parentNode,
|
||
|
|
||
| // x and y are relative to the the interactable's origin
|
||
| resize: { x: 100, y: 100, width: 200, height: 200 }
|
||
| })
|
||
|
|
||
| interact('.draggable').restrict({
|
||
| // the rect will be the selected element's parent
|
||
| drag: 'parent',
|
||
|
|
||
| // do not restrict during normal movement.
|
||
| // Instead, trigger only one restricted move event
|
||
| // immediately before the end event.
|
||
| endOnly: true,
|
||
|
|
||
| // https://github.com/taye/interact.js/pull/72#issue-41813493
|
||
| elementRect: { top: 0, left: 0, bottom: 1, right: 1 }
|
||
| });
|
||
\*/
|
||
restrict: function (options) {
|
||
if (!isObject(options)) {
|
||
return this.setOptions('restrict', options);
|
||
}
|
||
|
||
var actions = ['drag', 'resize', 'gesture'],
|
||
ret;
|
||
|
||
for (var i = 0; i < actions.length; i++) {
|
||
var action = actions[i];
|
||
|
||
if (action in options) {
|
||
var perAction = extend({
|
||
actions: [action],
|
||
restriction: options[action]
|
||
}, options);
|
||
|
||
ret = this.setOptions('restrict', perAction);
|
||
}
|
||
}
|
||
|
||
return ret;
|
||
},
|
||
|
||
/*\
|
||
* Interactable.context
|
||
[ method ]
|
||
*
|
||
* Gets the selector context Node of the Interactable. The default is `window.document`.
|
||
*
|
||
= (Node) The context Node of this Interactable
|
||
**
|
||
\*/
|
||
context: function () {
|
||
return this._context;
|
||
},
|
||
|
||
_context: document,
|
||
|
||
/*\
|
||
* Interactable.ignoreFrom
|
||
[ method ]
|
||
*
|
||
* If the target of the `mousedown`, `pointerdown` or `touchstart`
|
||
* event or any of it's parents match the given CSS selector or
|
||
* Element, no drag/resize/gesture is started.
|
||
*
|
||
- newValue (string | Element | null) #optional a CSS selector string, an Element or `null` to not ignore any elements
|
||
= (string | Element | object) The current ignoreFrom value or this Interactable
|
||
**
|
||
| interact(element, { ignoreFrom: document.getElementById('no-action') });
|
||
| // or
|
||
| interact(element).ignoreFrom('input, textarea, a');
|
||
\*/
|
||
ignoreFrom: function (newValue) {
|
||
if (trySelector(newValue)) { // CSS selector to match event.target
|
||
this.options.ignoreFrom = newValue;
|
||
return this;
|
||
}
|
||
|
||
if (isElement(newValue)) { // specific element
|
||
this.options.ignoreFrom = newValue;
|
||
return this;
|
||
}
|
||
|
||
return this.options.ignoreFrom;
|
||
},
|
||
|
||
/*\
|
||
* Interactable.allowFrom
|
||
[ method ]
|
||
*
|
||
* A drag/resize/gesture is started only If the target of the
|
||
* `mousedown`, `pointerdown` or `touchstart` event or any of it's
|
||
* parents match the given CSS selector or Element.
|
||
*
|
||
- newValue (string | Element | null) #optional a CSS selector string, an Element or `null` to allow from any element
|
||
= (string | Element | object) The current allowFrom value or this Interactable
|
||
**
|
||
| interact(element, { allowFrom: document.getElementById('drag-handle') });
|
||
| // or
|
||
| interact(element).allowFrom('.handle');
|
||
\*/
|
||
allowFrom: function (newValue) {
|
||
if (trySelector(newValue)) { // CSS selector to match event.target
|
||
this.options.allowFrom = newValue;
|
||
return this;
|
||
}
|
||
|
||
if (isElement(newValue)) { // specific element
|
||
this.options.allowFrom = newValue;
|
||
return this;
|
||
}
|
||
|
||
return this.options.allowFrom;
|
||
},
|
||
|
||
/*\
|
||
* Interactable.element
|
||
[ method ]
|
||
*
|
||
* If this is not a selector Interactable, it returns the element this
|
||
* interactable represents
|
||
*
|
||
= (Element) HTML / SVG Element
|
||
\*/
|
||
element: function () {
|
||
return this._element;
|
||
},
|
||
|
||
/*\
|
||
* Interactable.fire
|
||
[ method ]
|
||
*
|
||
* Calls listeners for the given InteractEvent type bound globally
|
||
* and directly to this Interactable
|
||
*
|
||
- iEvent (InteractEvent) The InteractEvent object to be fired on this Interactable
|
||
= (Interactable) this Interactable
|
||
\*/
|
||
fire: function (iEvent) {
|
||
if (!(iEvent && iEvent.type) || !contains(eventTypes, iEvent.type)) {
|
||
return this;
|
||
}
|
||
|
||
var listeners,
|
||
i,
|
||
len,
|
||
onEvent = 'on' + iEvent.type,
|
||
funcName = '';
|
||
|
||
// Interactable#on() listeners
|
||
if (iEvent.type in this._iEvents) {
|
||
listeners = this._iEvents[iEvent.type];
|
||
|
||
for (i = 0, len = listeners.length; i < len && !iEvent.immediatePropagationStopped; i++) {
|
||
funcName = listeners[i].name;
|
||
listeners[i](iEvent);
|
||
}
|
||
}
|
||
|
||
// interactable.onevent listener
|
||
if (isFunction(this[onEvent])) {
|
||
funcName = this[onEvent].name;
|
||
this[onEvent](iEvent);
|
||
}
|
||
|
||
// interact.on() listeners
|
||
if (iEvent.type in globalEvents && (listeners = globalEvents[iEvent.type])) {
|
||
|
||
for (i = 0, len = listeners.length; i < len && !iEvent.immediatePropagationStopped; i++) {
|
||
funcName = listeners[i].name;
|
||
listeners[i](iEvent);
|
||
}
|
||
}
|
||
|
||
return this;
|
||
},
|
||
|
||
/*\
|
||
* Interactable.on
|
||
[ method ]
|
||
*
|
||
* Binds a listener for an InteractEvent or DOM event.
|
||
*
|
||
- eventType (string | array | object) The types of events to listen for
|
||
- listener (function) The function to be called on the given event(s)
|
||
- useCapture (boolean) #optional useCapture flag for addEventListener
|
||
= (object) This Interactable
|
||
\*/
|
||
on: function (eventType, listener, useCapture) {
|
||
var i;
|
||
|
||
if (isString(eventType) && eventType.search(' ') !== -1) {
|
||
eventType = eventType.trim().split(/ +/);
|
||
}
|
||
|
||
if (isArray(eventType)) {
|
||
for (i = 0; i < eventType.length; i++) {
|
||
this.on(eventType[i], listener, useCapture);
|
||
}
|
||
|
||
return this;
|
||
}
|
||
|
||
if (isObject(eventType)) {
|
||
for (var prop in eventType) {
|
||
this.on(prop, eventType[prop], listener);
|
||
}
|
||
|
||
return this;
|
||
}
|
||
|
||
if (eventType === 'wheel') {
|
||
eventType = wheelEvent;
|
||
}
|
||
|
||
// convert to boolean
|
||
useCapture = useCapture? true: false;
|
||
|
||
if (contains(eventTypes, eventType)) {
|
||
// if this type of event was never bound to this Interactable
|
||
if (!(eventType in this._iEvents)) {
|
||
this._iEvents[eventType] = [listener];
|
||
}
|
||
else {
|
||
this._iEvents[eventType].push(listener);
|
||
}
|
||
}
|
||
// delegated event for selector
|
||
else if (this.selector) {
|
||
if (!delegatedEvents[eventType]) {
|
||
delegatedEvents[eventType] = {
|
||
selectors: [],
|
||
contexts : [],
|
||
listeners: []
|
||
};
|
||
|
||
// add delegate listener functions
|
||
for (i = 0; i < documents.length; i++) {
|
||
events.add(documents[i], eventType, delegateListener);
|
||
events.add(documents[i], eventType, delegateUseCapture, true);
|
||
}
|
||
}
|
||
|
||
var delegated = delegatedEvents[eventType],
|
||
index;
|
||
|
||
for (index = delegated.selectors.length - 1; index >= 0; index--) {
|
||
if (delegated.selectors[index] === this.selector
|
||
&& delegated.contexts[index] === this._context) {
|
||
break;
|
||
}
|
||
}
|
||
|
||
if (index === -1) {
|
||
index = delegated.selectors.length;
|
||
|
||
delegated.selectors.push(this.selector);
|
||
delegated.contexts .push(this._context);
|
||
delegated.listeners.push([]);
|
||
}
|
||
|
||
// keep listener and useCapture flag
|
||
delegated.listeners[index].push([listener, useCapture]);
|
||
}
|
||
else {
|
||
events.add(this._element, eventType, listener, useCapture);
|
||
}
|
||
|
||
return this;
|
||
},
|
||
|
||
/*\
|
||
* Interactable.off
|
||
[ method ]
|
||
*
|
||
* Removes an InteractEvent or DOM event listener
|
||
*
|
||
- eventType (string | array | object) The types of events that were listened for
|
||
- listener (function) The listener function to be removed
|
||
- useCapture (boolean) #optional useCapture flag for removeEventListener
|
||
= (object) This Interactable
|
||
\*/
|
||
off: function (eventType, listener, useCapture) {
|
||
var i;
|
||
|
||
if (isString(eventType) && eventType.search(' ') !== -1) {
|
||
eventType = eventType.trim().split(/ +/);
|
||
}
|
||
|
||
if (isArray(eventType)) {
|
||
for (i = 0; i < eventType.length; i++) {
|
||
this.off(eventType[i], listener, useCapture);
|
||
}
|
||
|
||
return this;
|
||
}
|
||
|
||
if (isObject(eventType)) {
|
||
for (var prop in eventType) {
|
||
this.off(prop, eventType[prop], listener);
|
||
}
|
||
|
||
return this;
|
||
}
|
||
|
||
var eventList,
|
||
index = -1;
|
||
|
||
// convert to boolean
|
||
useCapture = useCapture? true: false;
|
||
|
||
if (eventType === 'wheel') {
|
||
eventType = wheelEvent;
|
||
}
|
||
|
||
// if it is an action event type
|
||
if (contains(eventTypes, eventType)) {
|
||
eventList = this._iEvents[eventType];
|
||
|
||
if (eventList && (index = indexOf(eventList, listener)) !== -1) {
|
||
this._iEvents[eventType].splice(index, 1);
|
||
}
|
||
}
|
||
// delegated event
|
||
else if (this.selector) {
|
||
var delegated = delegatedEvents[eventType],
|
||
matchFound = false;
|
||
|
||
if (!delegated) { return this; }
|
||
|
||
// count from last index of delegated to 0
|
||
for (index = delegated.selectors.length - 1; index >= 0; index--) {
|
||
// look for matching selector and context Node
|
||
if (delegated.selectors[index] === this.selector
|
||
&& delegated.contexts[index] === this._context) {
|
||
|
||
var listeners = delegated.listeners[index];
|
||
|
||
// each item of the listeners array is an array: [function, useCaptureFlag]
|
||
for (i = listeners.length - 1; i >= 0; i--) {
|
||
var fn = listeners[i][0],
|
||
useCap = listeners[i][1];
|
||
|
||
// check if the listener functions and useCapture flags match
|
||
if (fn === listener && useCap === useCapture) {
|
||
// remove the listener from the array of listeners
|
||
listeners.splice(i, 1);
|
||
|
||
// if all listeners for this interactable have been removed
|
||
// remove the interactable from the delegated arrays
|
||
if (!listeners.length) {
|
||
delegated.selectors.splice(index, 1);
|
||
delegated.contexts .splice(index, 1);
|
||
delegated.listeners.splice(index, 1);
|
||
|
||
// remove delegate function from context
|
||
events.remove(this._context, eventType, delegateListener);
|
||
events.remove(this._context, eventType, delegateUseCapture, true);
|
||
|
||
// remove the arrays if they are empty
|
||
if (!delegated.selectors.length) {
|
||
delegatedEvents[eventType] = null;
|
||
}
|
||
}
|
||
|
||
// only remove one listener
|
||
matchFound = true;
|
||
break;
|
||
}
|
||
}
|
||
|
||
if (matchFound) { break; }
|
||
}
|
||
}
|
||
}
|
||
// remove listener from this Interatable's element
|
||
else {
|
||
events.remove(this._element, eventType, listener, useCapture);
|
||
}
|
||
|
||
return this;
|
||
},
|
||
|
||
/*\
|
||
* Interactable.set
|
||
[ method ]
|
||
*
|
||
* Reset the options of this Interactable
|
||
- options (object) The new settings to apply
|
||
= (object) This Interactable
|
||
\*/
|
||
set: function (options) {
|
||
if (!isObject(options)) {
|
||
options = {};
|
||
}
|
||
|
||
this.options = extend({}, defaultOptions.base);
|
||
|
||
var i,
|
||
actions = ['drag', 'drop', 'resize', 'gesture'],
|
||
methods = ['draggable', 'dropzone', 'resizable', 'gesturable'],
|
||
perActions = extend(extend({}, defaultOptions.perAction), options[action] || {});
|
||
|
||
for (i = 0; i < actions.length; i++) {
|
||
var action = actions[i];
|
||
|
||
this.options[action] = extend({}, defaultOptions[action]);
|
||
|
||
this.setPerAction(action, perActions);
|
||
|
||
this[methods[i]](options[action]);
|
||
}
|
||
|
||
var settings = [
|
||
'accept', 'actionChecker', 'allowFrom', 'deltaSource',
|
||
'dropChecker', 'ignoreFrom', 'origin', 'preventDefault',
|
||
'rectChecker', 'styleCursor'
|
||
];
|
||
|
||
for (i = 0, len = settings.length; i < len; i++) {
|
||
var setting = settings[i];
|
||
|
||
this.options[setting] = defaultOptions.base[setting];
|
||
|
||
if (setting in options) {
|
||
this[setting](options[setting]);
|
||
}
|
||
}
|
||
|
||
return this;
|
||
},
|
||
|
||
/*\
|
||
* Interactable.unset
|
||
[ method ]
|
||
*
|
||
* Remove this interactable from the list of interactables and remove
|
||
* it's drag, drop, resize and gesture capabilities
|
||
*
|
||
= (object) @interact
|
||
\*/
|
||
unset: function () {
|
||
events.remove(this._element, 'all');
|
||
|
||
if (!isString(this.selector)) {
|
||
events.remove(this, 'all');
|
||
if (this.options.styleCursor) {
|
||
this._element.style.cursor = '';
|
||
}
|
||
}
|
||
else {
|
||
// remove delegated events
|
||
for (var type in delegatedEvents) {
|
||
var delegated = delegatedEvents[type];
|
||
|
||
for (var i = 0; i < delegated.selectors.length; i++) {
|
||
if (delegated.selectors[i] === this.selector
|
||
&& delegated.contexts[i] === this._context) {
|
||
|
||
delegated.selectors.splice(i, 1);
|
||
delegated.contexts .splice(i, 1);
|
||
delegated.listeners.splice(i, 1);
|
||
|
||
// remove the arrays if they are empty
|
||
if (!delegated.selectors.length) {
|
||
delegatedEvents[type] = null;
|
||
}
|
||
}
|
||
|
||
events.remove(this._context, type, delegateListener);
|
||
events.remove(this._context, type, delegateUseCapture, true);
|
||
|
||
break;
|
||
}
|
||
}
|
||
}
|
||
|
||
this.dropzone(false);
|
||
|
||
interactables.splice(indexOf(interactables, this), 1);
|
||
|
||
return interact;
|
||
}
|
||
};
|
||
|
||
function warnOnce (method, message) {
|
||
var warned = false;
|
||
|
||
return function () {
|
||
if (!warned) {
|
||
window.console.warn(message);
|
||
warned = true;
|
||
}
|
||
|
||
return method.apply(this, arguments);
|
||
};
|
||
}
|
||
|
||
Interactable.prototype.snap = warnOnce(Interactable.prototype.snap,
|
||
'Interactable#snap is deprecated. See the new documentation for snapping at http://interactjs.io/docs/snapping');
|
||
Interactable.prototype.restrict = warnOnce(Interactable.prototype.restrict,
|
||
'Interactable#restrict is deprecated. See the new documentation for resticting at http://interactjs.io/docs/restriction');
|
||
Interactable.prototype.inertia = warnOnce(Interactable.prototype.inertia,
|
||
'Interactable#inertia is deprecated. See the new documentation for inertia at http://interactjs.io/docs/inertia');
|
||
Interactable.prototype.autoScroll = warnOnce(Interactable.prototype.autoScroll,
|
||
'Interactable#autoScroll is deprecated. See the new documentation for autoScroll at http://interactjs.io/docs/#autoscroll');
|
||
Interactable.prototype.squareResize = warnOnce(Interactable.prototype.squareResize,
|
||
'Interactable#squareResize is deprecated. See http://interactjs.io/docs/#resize-square');
|
||
|
||
Interactable.prototype.accept = warnOnce(Interactable.prototype.accept,
|
||
'Interactable#accept is deprecated. use Interactable#dropzone({ accept: target }) instead');
|
||
Interactable.prototype.dropChecker = warnOnce(Interactable.prototype.dropChecker,
|
||
'Interactable#dropChecker is deprecated. use Interactable#dropzone({ dropChecker: checkerFunction }) instead');
|
||
Interactable.prototype.context = warnOnce(Interactable.prototype.context,
|
||
'Interactable#context as a method is deprecated. It will soon be a DOM Node instead');
|
||
|
||
/*\
|
||
* interact.isSet
|
||
[ method ]
|
||
*
|
||
* Check if an element has been set
|
||
- element (Element) The Element being searched for
|
||
= (boolean) Indicates if the element or CSS selector was previously passed to interact
|
||
\*/
|
||
interact.isSet = function(element, options) {
|
||
return interactables.indexOfElement(element, options && options.context) !== -1;
|
||
};
|
||
|
||
/*\
|
||
* interact.on
|
||
[ method ]
|
||
*
|
||
* Adds a global listener for an InteractEvent or adds a DOM event to
|
||
* `document`
|
||
*
|
||
- type (string | array | object) The types of events to listen for
|
||
- listener (function) The function to be called on the given event(s)
|
||
- useCapture (boolean) #optional useCapture flag for addEventListener
|
||
= (object) interact
|
||
\*/
|
||
interact.on = function (type, listener, useCapture) {
|
||
if (isString(type) && type.search(' ') !== -1) {
|
||
type = type.trim().split(/ +/);
|
||
}
|
||
|
||
if (isArray(type)) {
|
||
for (var i = 0; i < type.length; i++) {
|
||
interact.on(type[i], listener, useCapture);
|
||
}
|
||
|
||
return interact;
|
||
}
|
||
|
||
if (isObject(type)) {
|
||
for (var prop in type) {
|
||
interact.on(prop, type[prop], listener);
|
||
}
|
||
|
||
return interact;
|
||
}
|
||
|
||
// if it is an InteractEvent type, add listener to globalEvents
|
||
if (contains(eventTypes, type)) {
|
||
// if this type of event was never bound
|
||
if (!globalEvents[type]) {
|
||
globalEvents[type] = [listener];
|
||
}
|
||
else {
|
||
globalEvents[type].push(listener);
|
||
}
|
||
}
|
||
// If non InteractEvent type, addEventListener to document
|
||
else {
|
||
events.add(document, type, listener, useCapture);
|
||
}
|
||
|
||
return interact;
|
||
};
|
||
|
||
/*\
|
||
* interact.off
|
||
[ method ]
|
||
*
|
||
* Removes a global InteractEvent listener or DOM event from `document`
|
||
*
|
||
- type (string | array | object) The types of events that were listened for
|
||
- listener (function) The listener function to be removed
|
||
- useCapture (boolean) #optional useCapture flag for removeEventListener
|
||
= (object) interact
|
||
\*/
|
||
interact.off = function (type, listener, useCapture) {
|
||
if (isString(type) && type.search(' ') !== -1) {
|
||
type = type.trim().split(/ +/);
|
||
}
|
||
|
||
if (isArray(type)) {
|
||
for (var i = 0; i < type.length; i++) {
|
||
interact.off(type[i], listener, useCapture);
|
||
}
|
||
|
||
return interact;
|
||
}
|
||
|
||
if (isObject(type)) {
|
||
for (var prop in type) {
|
||
interact.off(prop, type[prop], listener);
|
||
}
|
||
|
||
return interact;
|
||
}
|
||
|
||
if (!contains(eventTypes, type)) {
|
||
events.remove(document, type, listener, useCapture);
|
||
}
|
||
else {
|
||
var index;
|
||
|
||
if (type in globalEvents
|
||
&& (index = indexOf(globalEvents[type], listener)) !== -1) {
|
||
globalEvents[type].splice(index, 1);
|
||
}
|
||
}
|
||
|
||
return interact;
|
||
};
|
||
|
||
/*\
|
||
* interact.enableDragging
|
||
[ method ]
|
||
*
|
||
* Deprecated.
|
||
*
|
||
* Returns or sets whether dragging is enabled for any Interactables
|
||
*
|
||
- newValue (boolean) #optional `true` to allow the action; `false` to disable action for all Interactables
|
||
= (boolean | object) The current setting or interact
|
||
\*/
|
||
interact.enableDragging = warnOnce(function (newValue) {
|
||
if (newValue !== null && newValue !== undefined) {
|
||
actionIsEnabled.drag = newValue;
|
||
|
||
return interact;
|
||
}
|
||
return actionIsEnabled.drag;
|
||
}, 'interact.enableDragging is deprecated and will soon be removed.');
|
||
|
||
/*\
|
||
* interact.enableResizing
|
||
[ method ]
|
||
*
|
||
* Deprecated.
|
||
*
|
||
* Returns or sets whether resizing is enabled for any Interactables
|
||
*
|
||
- newValue (boolean) #optional `true` to allow the action; `false` to disable action for all Interactables
|
||
= (boolean | object) The current setting or interact
|
||
\*/
|
||
interact.enableResizing = warnOnce(function (newValue) {
|
||
if (newValue !== null && newValue !== undefined) {
|
||
actionIsEnabled.resize = newValue;
|
||
|
||
return interact;
|
||
}
|
||
return actionIsEnabled.resize;
|
||
}, 'interact.enableResizing is deprecated and will soon be removed.');
|
||
|
||
/*\
|
||
* interact.enableGesturing
|
||
[ method ]
|
||
*
|
||
* Deprecated.
|
||
*
|
||
* Returns or sets whether gesturing is enabled for any Interactables
|
||
*
|
||
- newValue (boolean) #optional `true` to allow the action; `false` to disable action for all Interactables
|
||
= (boolean | object) The current setting or interact
|
||
\*/
|
||
interact.enableGesturing = warnOnce(function (newValue) {
|
||
if (newValue !== null && newValue !== undefined) {
|
||
actionIsEnabled.gesture = newValue;
|
||
|
||
return interact;
|
||
}
|
||
return actionIsEnabled.gesture;
|
||
}, 'interact.enableGesturing is deprecated and will soon be removed.');
|
||
|
||
interact.eventTypes = eventTypes;
|
||
|
||
/*\
|
||
* interact.debug
|
||
[ method ]
|
||
*
|
||
* Returns debugging data
|
||
= (object) An object with properties that outline the current state and expose internal functions and variables
|
||
\*/
|
||
interact.debug = function () {
|
||
var interaction = interactions[0] || new Interaction();
|
||
|
||
return {
|
||
interactions : interactions,
|
||
target : interaction.target,
|
||
dragging : interaction.dragging,
|
||
resizing : interaction.resizing,
|
||
gesturing : interaction.gesturing,
|
||
prepared : interaction.prepared,
|
||
matches : interaction.matches,
|
||
matchElements : interaction.matchElements,
|
||
|
||
prevCoords : interaction.prevCoords,
|
||
startCoords : interaction.startCoords,
|
||
|
||
pointerIds : interaction.pointerIds,
|
||
pointers : interaction.pointers,
|
||
addPointer : listeners.addPointer,
|
||
removePointer : listeners.removePointer,
|
||
recordPointer : listeners.recordPointer,
|
||
|
||
snap : interaction.snapStatus,
|
||
restrict : interaction.restrictStatus,
|
||
inertia : interaction.inertiaStatus,
|
||
|
||
downTime : interaction.downTimes[0],
|
||
downEvent : interaction.downEvent,
|
||
downPointer : interaction.downPointer,
|
||
prevEvent : interaction.prevEvent,
|
||
|
||
Interactable : Interactable,
|
||
interactables : interactables,
|
||
pointerIsDown : interaction.pointerIsDown,
|
||
defaultOptions : defaultOptions,
|
||
defaultActionChecker : defaultActionChecker,
|
||
|
||
actionCursors : actionCursors,
|
||
dragMove : listeners.dragMove,
|
||
resizeMove : listeners.resizeMove,
|
||
gestureMove : listeners.gestureMove,
|
||
pointerUp : listeners.pointerUp,
|
||
pointerDown : listeners.pointerDown,
|
||
pointerMove : listeners.pointerMove,
|
||
pointerHover : listeners.pointerHover,
|
||
|
||
eventTypes : eventTypes,
|
||
|
||
events : events,
|
||
globalEvents : globalEvents,
|
||
delegatedEvents : delegatedEvents,
|
||
|
||
prefixedPropREs : prefixedPropREs
|
||
};
|
||
};
|
||
|
||
// expose the functions used to calculate multi-touch properties
|
||
interact.getPointerAverage = pointerAverage;
|
||
interact.getTouchBBox = touchBBox;
|
||
interact.getTouchDistance = touchDistance;
|
||
interact.getTouchAngle = touchAngle;
|
||
|
||
interact.getElementRect = getElementRect;
|
||
interact.getElementClientRect = getElementClientRect;
|
||
interact.matchesSelector = matchesSelector;
|
||
interact.closest = closest;
|
||
|
||
/*\
|
||
* interact.margin
|
||
[ method ]
|
||
*
|
||
* Deprecated. Use `interact(target).resizable({ margin: number });` instead.
|
||
* Returns or sets the margin for autocheck resizing used in
|
||
* @Interactable.getAction. That is the distance from the bottom and right
|
||
* edges of an element clicking in which will start resizing
|
||
*
|
||
- newValue (number) #optional
|
||
= (number | interact) The current margin value or interact
|
||
\*/
|
||
interact.margin = warnOnce(function (newvalue) {
|
||
if (isNumber(newvalue)) {
|
||
margin = newvalue;
|
||
|
||
return interact;
|
||
}
|
||
return margin;
|
||
},
|
||
'interact.margin is deprecated. Use interact(target).resizable({ margin: number }); instead.') ;
|
||
|
||
/*\
|
||
* interact.supportsTouch
|
||
[ method ]
|
||
*
|
||
= (boolean) Whether or not the browser supports touch input
|
||
\*/
|
||
interact.supportsTouch = function () {
|
||
return supportsTouch;
|
||
};
|
||
|
||
/*\
|
||
* interact.supportsPointerEvent
|
||
[ method ]
|
||
*
|
||
= (boolean) Whether or not the browser supports PointerEvents
|
||
\*/
|
||
interact.supportsPointerEvent = function () {
|
||
return supportsPointerEvent;
|
||
};
|
||
|
||
/*\
|
||
* interact.stop
|
||
[ method ]
|
||
*
|
||
* Cancels all interactions (end events are not fired)
|
||
*
|
||
- event (Event) An event on which to call preventDefault()
|
||
= (object) interact
|
||
\*/
|
||
interact.stop = function (event) {
|
||
for (var i = interactions.length - 1; i >= 0; i--) {
|
||
interactions[i].stop(event);
|
||
}
|
||
|
||
return interact;
|
||
};
|
||
|
||
/*\
|
||
* interact.dynamicDrop
|
||
[ method ]
|
||
*
|
||
* Returns or sets whether the dimensions of dropzone elements are
|
||
* calculated on every dragmove or only on dragstart for the default
|
||
* dropChecker
|
||
*
|
||
- newValue (boolean) #optional True to check on each move. False to check only before start
|
||
= (boolean | interact) The current setting or interact
|
||
\*/
|
||
interact.dynamicDrop = function (newValue) {
|
||
if (isBool(newValue)) {
|
||
//if (dragging && dynamicDrop !== newValue && !newValue) {
|
||
//calcRects(dropzones);
|
||
//}
|
||
|
||
dynamicDrop = newValue;
|
||
|
||
return interact;
|
||
}
|
||
return dynamicDrop;
|
||
};
|
||
|
||
/*\
|
||
* interact.pointerMoveTolerance
|
||
[ method ]
|
||
* Returns or sets the distance the pointer must be moved before an action
|
||
* sequence occurs. This also affects tolerance for tap events.
|
||
*
|
||
- newValue (number) #optional The movement from the start position must be greater than this value
|
||
= (number | Interactable) The current setting or interact
|
||
\*/
|
||
interact.pointerMoveTolerance = function (newValue) {
|
||
if (isNumber(newValue)) {
|
||
pointerMoveTolerance = newValue;
|
||
|
||
return this;
|
||
}
|
||
|
||
return pointerMoveTolerance;
|
||
};
|
||
|
||
/*\
|
||
* interact.maxInteractions
|
||
[ method ]
|
||
**
|
||
* Returns or sets the maximum number of concurrent interactions allowed.
|
||
* By default only 1 interaction is allowed at a time (for backwards
|
||
* compatibility). To allow multiple interactions on the same Interactables
|
||
* and elements, you need to enable it in the draggable, resizable and
|
||
* gesturable `'max'` and `'maxPerElement'` options.
|
||
**
|
||
- newValue (number) #optional Any number. newValue <= 0 means no interactions.
|
||
\*/
|
||
interact.maxInteractions = function (newValue) {
|
||
if (isNumber(newValue)) {
|
||
maxInteractions = newValue;
|
||
|
||
return this;
|
||
}
|
||
|
||
return maxInteractions;
|
||
};
|
||
|
||
interact.createSnapGrid = function (grid) {
|
||
return function (x, y) {
|
||
var offsetX = 0,
|
||
offsetY = 0;
|
||
|
||
if (isObject(grid.offset)) {
|
||
offsetX = grid.offset.x;
|
||
offsetY = grid.offset.y;
|
||
}
|
||
|
||
var gridx = Math.round((x - offsetX) / grid.x),
|
||
gridy = Math.round((y - offsetY) / grid.y),
|
||
|
||
newX = gridx * grid.x + offsetX,
|
||
newY = gridy * grid.y + offsetY;
|
||
|
||
return {
|
||
x: newX,
|
||
y: newY,
|
||
range: grid.range
|
||
};
|
||
};
|
||
};
|
||
|
||
function endAllInteractions (event) {
|
||
for (var i = 0; i < interactions.length; i++) {
|
||
interactions[i].pointerEnd(event, event);
|
||
}
|
||
}
|
||
|
||
function listenToDocument (doc) {
|
||
if (contains(documents, doc)) { return; }
|
||
|
||
var win = doc.defaultView || doc.parentWindow;
|
||
|
||
// add delegate event listener
|
||
for (var eventType in delegatedEvents) {
|
||
events.add(doc, eventType, delegateListener);
|
||
events.add(doc, eventType, delegateUseCapture, true);
|
||
}
|
||
|
||
if (supportsPointerEvent) {
|
||
if (PointerEvent === win.MSPointerEvent) {
|
||
pEventTypes = {
|
||
up: 'MSPointerUp', down: 'MSPointerDown', over: 'mouseover',
|
||
out: 'mouseout', move: 'MSPointerMove', cancel: 'MSPointerCancel' };
|
||
}
|
||
else {
|
||
pEventTypes = {
|
||
up: 'pointerup', down: 'pointerdown', over: 'pointerover',
|
||
out: 'pointerout', move: 'pointermove', cancel: 'pointercancel' };
|
||
}
|
||
|
||
events.add(doc, pEventTypes.down , listeners.selectorDown );
|
||
events.add(doc, pEventTypes.move , listeners.pointerMove );
|
||
events.add(doc, pEventTypes.over , listeners.pointerOver );
|
||
events.add(doc, pEventTypes.out , listeners.pointerOut );
|
||
events.add(doc, pEventTypes.up , listeners.pointerUp );
|
||
events.add(doc, pEventTypes.cancel, listeners.pointerCancel);
|
||
|
||
// autoscroll
|
||
events.add(doc, pEventTypes.move, listeners.autoScrollMove);
|
||
}
|
||
else {
|
||
events.add(doc, 'mousedown', listeners.selectorDown);
|
||
events.add(doc, 'mousemove', listeners.pointerMove );
|
||
events.add(doc, 'mouseup' , listeners.pointerUp );
|
||
events.add(doc, 'mouseover', listeners.pointerOver );
|
||
events.add(doc, 'mouseout' , listeners.pointerOut );
|
||
|
||
events.add(doc, 'touchstart' , listeners.selectorDown );
|
||
events.add(doc, 'touchmove' , listeners.pointerMove );
|
||
events.add(doc, 'touchend' , listeners.pointerUp );
|
||
events.add(doc, 'touchcancel', listeners.pointerCancel);
|
||
|
||
// autoscroll
|
||
events.add(doc, 'mousemove', listeners.autoScrollMove);
|
||
events.add(doc, 'touchmove', listeners.autoScrollMove);
|
||
}
|
||
|
||
events.add(win, 'blur', endAllInteractions);
|
||
|
||
try {
|
||
if (win.frameElement) {
|
||
var parentDoc = win.frameElement.ownerDocument,
|
||
parentWindow = parentDoc.defaultView;
|
||
|
||
events.add(parentDoc , 'mouseup' , listeners.pointerEnd);
|
||
events.add(parentDoc , 'touchend' , listeners.pointerEnd);
|
||
events.add(parentDoc , 'touchcancel' , listeners.pointerEnd);
|
||
events.add(parentDoc , 'pointerup' , listeners.pointerEnd);
|
||
events.add(parentDoc , 'MSPointerUp' , listeners.pointerEnd);
|
||
events.add(parentWindow, 'blur' , endAllInteractions );
|
||
}
|
||
}
|
||
catch (error) {
|
||
interact.windowParentError = error;
|
||
}
|
||
|
||
// prevent native HTML5 drag on interact.js target elements
|
||
events.add(doc, 'dragstart', function (event) {
|
||
for (var i = 0; i < interactions.length; i++) {
|
||
var interaction = interactions[i];
|
||
|
||
if (interaction.element
|
||
&& (interaction.element === event.target
|
||
|| nodeContains(interaction.element, event.target))) {
|
||
|
||
interaction.checkAndPreventDefault(event, interaction.target, interaction.element);
|
||
return;
|
||
}
|
||
}
|
||
});
|
||
|
||
if (events.useAttachEvent) {
|
||
// For IE's lack of Event#preventDefault
|
||
events.add(doc, 'selectstart', function (event) {
|
||
var interaction = interactions[0];
|
||
|
||
if (interaction.currentAction()) {
|
||
interaction.checkAndPreventDefault(event);
|
||
}
|
||
});
|
||
|
||
// For IE's bad dblclick event sequence
|
||
events.add(doc, 'dblclick', doOnInteractions('ie8Dblclick'));
|
||
}
|
||
|
||
documents.push(doc);
|
||
}
|
||
|
||
listenToDocument(document);
|
||
|
||
function indexOf (array, target) {
|
||
for (var i = 0, len = array.length; i < len; i++) {
|
||
if (array[i] === target) {
|
||
return i;
|
||
}
|
||
}
|
||
|
||
return -1;
|
||
}
|
||
|
||
function contains (array, target) {
|
||
return indexOf(array, target) !== -1;
|
||
}
|
||
|
||
function matchesSelector (element, selector, nodeList) {
|
||
if (ie8MatchesSelector) {
|
||
return ie8MatchesSelector(element, selector, nodeList);
|
||
}
|
||
|
||
// remove /deep/ from selectors if shadowDOM polyfill is used
|
||
if (window !== realWindow) {
|
||
selector = selector.replace(/\/deep\//g, ' ');
|
||
}
|
||
|
||
return element[prefixedMatchesSelector](selector);
|
||
}
|
||
|
||
function matchesUpTo (element, selector, limit) {
|
||
while (isElement(element)) {
|
||
if (matchesSelector(element, selector)) {
|
||
return true;
|
||
}
|
||
|
||
element = parentElement(element);
|
||
|
||
if (element === limit) {
|
||
return matchesSelector(element, selector);
|
||
}
|
||
}
|
||
|
||
return false;
|
||
}
|
||
|
||
// For IE8's lack of an Element#matchesSelector
|
||
// taken from http://tanalin.com/en/blog/2012/12/matches-selector-ie8/ and modified
|
||
if (!(prefixedMatchesSelector in Element.prototype) || !isFunction(Element.prototype[prefixedMatchesSelector])) {
|
||
ie8MatchesSelector = function (element, selector, elems) {
|
||
elems = elems || element.parentNode.querySelectorAll(selector);
|
||
|
||
for (var i = 0, len = elems.length; i < len; i++) {
|
||
if (elems[i] === element) {
|
||
return true;
|
||
}
|
||
}
|
||
|
||
return false;
|
||
};
|
||
}
|
||
|
||
// requestAnimationFrame polyfill
|
||
(function() {
|
||
var lastTime = 0,
|
||
vendors = ['ms', 'moz', 'webkit', 'o'];
|
||
|
||
for(var x = 0; x < vendors.length && !realWindow.requestAnimationFrame; ++x) {
|
||
reqFrame = realWindow[vendors[x]+'RequestAnimationFrame'];
|
||
cancelFrame = realWindow[vendors[x]+'CancelAnimationFrame'] || realWindow[vendors[x]+'CancelRequestAnimationFrame'];
|
||
}
|
||
|
||
if (!reqFrame) {
|
||
reqFrame = function(callback) {
|
||
var currTime = new Date().getTime(),
|
||
timeToCall = Math.max(0, 16 - (currTime - lastTime)),
|
||
id = setTimeout(function() { callback(currTime + timeToCall); },
|
||
timeToCall);
|
||
lastTime = currTime + timeToCall;
|
||
return id;
|
||
};
|
||
}
|
||
|
||
if (!cancelFrame) {
|
||
cancelFrame = function(id) {
|
||
clearTimeout(id);
|
||
};
|
||
}
|
||
}());
|
||
|
||
/* global exports: true, module, define */
|
||
|
||
// http://documentcloud.github.io/underscore/docs/underscore.html#section-11
|
||
if (typeof exports !== 'undefined') {
|
||
if (typeof module !== 'undefined' && module.exports) {
|
||
exports = module.exports = interact;
|
||
}
|
||
exports.interact = interact;
|
||
}
|
||
// AMD
|
||
else if (typeof define === 'function' && define.amd) {
|
||
define('interact', function() {
|
||
return interact;
|
||
});
|
||
}
|
||
else {
|
||
realWindow.interact = interact;
|
||
}
|
||
|
||
} (typeof window === 'undefined'? undefined : window));
|