d15fe661fa
git-svn-id: http://google-refine.googlecode.com/svn/trunk@1293 7d457c2a-affb-35e4-300a-418c747d4874
275 lines
9.3 KiB
JavaScript
275 lines
9.3 KiB
JavaScript
function BrowsingEngine(div, facetConfigs) {
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this._div = div;
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this._facets = [];
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this._initializeUI();
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if (facetConfigs.length > 0) {
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for (var i = 0; i < facetConfigs.length; i++) {
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var facetConfig = facetConfigs[i];
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var type = facetConfig.c.type;
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var elmt = this._createFacetContainer();
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var facet;
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switch (type) {
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case "range":
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facet = RangeFacet.reconstruct(elmt, facetConfig);
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break;
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case "timerange":
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facet = TimeRangeFacet.reconstruct(elmt, facetConfig);
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break;
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case "scatterplot":
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facet = ScatterplotFacet.reconstruct(elmt, facetConfig);
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break;
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case "text":
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facet = TextSearchFacet.reconstruct(elmt, facetConfig);
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break;
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default:
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facet = ListFacet.reconstruct(elmt, facetConfig);
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}
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this._facets.push({ elmt: elmt, facet: facet });
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}
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}
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}
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BrowsingEngine.prototype.resize = function() {
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if (this._facets.length > 0) {
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var body = this._div.find(".facets-container");
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var bodyPaddings = body.outerHeight(true) - body.height();
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var height =
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this._div.height() -
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this._div.find(".browsing-panel-header").outerHeight(true) -
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this._div.find(".browsing-panel-modes").outerHeight(true) -
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bodyPaddings;
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body.css("height", height + "px");
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this._elmts.facets.sortable("refresh");
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}
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};
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BrowsingEngine.prototype.getFacetUIStates = function() {
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var f = [];
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for (var i = 0; i < this._facets.length; i++) {
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var facet = this._facets[i];
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f.push(facet.facet.getUIState());
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}
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return f;
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};
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BrowsingEngine.prototype._initializeUI = function() {
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var self = this;
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this._div.html(
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'<div class="browsing-panel-help" bind="help">' +
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'<h1>Explore data ...</h1>' +
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'<p>by choosing a facet or filter method from the menus at the top of each column.</p>' +
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'<p>Not sure how to get started? <a href="http://vimeo.com/groups/gridworks/videos" target="_blank">Watch these screencasts</a>.</p>' +
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'</div>' +
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'<div class="browsing-panel-modes">' +
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'Browse by ' +
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'<span bind="modeSelectors">' +
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'<input type="radio" id="browsing-panel-mode-row-based" name="browsing-panel-mode" value="row-based" /><label for="browsing-panel-mode-row-based">rows</label>' +
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'<input type="radio" id="browsing-panel-mode-record-based" name="browsing-panel-mode" value="record-based" /><label for="browsing-panel-mode-record-based">records</label>' +
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'</span>' +
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'</div>' +
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'<div class="browsing-panel-header" bind="header">' +
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'<div class="browsing-panel-indicator" bind="indicator">' +
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'<img src="images/small-spinner.gif" /> refreshing facets ...' +
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'</div>' +
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'<div class="browsing-panel-controls" bind="controls"><div class="grid-layout layout-tightest layout-full"><table>' +
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'<tr>' +
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'<td>' +
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'<a href="javascript:{}" bind="refreshLink" class="action" title="Make sure all facets are up-to-date">Refresh</a>' +
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'</td>' +
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'<td width="1%">' +
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'<a href="javascript:{}" bind="resetLink" class="action" title="Clear selection in all facets">Reset All</a>' +
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'</td>' +
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'<td width="1%">' +
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'<a href="javascript:{}" bind="removeLink" class="action" title="Remove all facets">Remove All</a>' +
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'</td>' +
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'</tr>' +
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'</table></div></div>' +
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'</div>' +
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'<ul bind="facets" class="facets-container"></ul>'
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);
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this._elmts = DOM.bind(this._div);
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this._elmts.facets.sortable({
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handle: '.facet-title',
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update: function(event, ui) {
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self._updateFacetOrder();
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}
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});
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$("#browsing-panel-mode-" +
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(theProject.recordModel.hasRecords ? 'record-based' : 'row-based')).attr("checked", "checked");
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this._elmts.modeSelectors.buttonset();
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this._elmts.modeSelectors.find("input").change(function() {
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Refine.update({ engineChanged: true });
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});
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this._elmts.refreshLink.click(function() { self.update(); });
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this._elmts.resetLink.click(function() { self.reset(); });
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this._elmts.removeLink.click(function() { self.remove(); });
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};
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BrowsingEngine.prototype._updateFacetOrder = function() {
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var elmts = this._elmts.facets.children();
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var newFacets = [];
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for (var e = 0; e < elmts.length; e++) {
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var elmt = elmts[e];
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for (var f = 0; f < this._facets.length; f++) {
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if (elmt === this._facets[f].elmt[0]) {
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newFacets.push(this._facets[f]);
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break;
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}
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}
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}
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this._facets = newFacets;
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};
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BrowsingEngine.prototype.getMode = function() {
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return this._elmts.modeSelectors.find("input:checked")[0].value;
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};
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BrowsingEngine.prototype.getJSON = function(keepUnrestrictedFacets, except) {
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var a = {
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facets: [],
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mode: this._elmts.modeSelectors.find("input:checked")[0].value
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};
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for (var i = 0; i < this._facets.length; i++) {
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var facet = this._facets[i];
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if ((keepUnrestrictedFacets || facet.facet.hasSelection()) && (facet.facet !== except)) {
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a.facets.push(facet.facet.getJSON());
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}
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}
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return a;
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};
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BrowsingEngine.prototype.addFacet = function(type, config, options) {
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var elmt = this._createFacetContainer();
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var facet;
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switch (type) {
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case "range":
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facet = new RangeFacet(elmt, config, options);
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break;
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case "timerange":
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facet = new TimeRangeFacet(elmt, config, options);
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break;
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case "scatterplot":
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facet = new ScatterplotFacet(elmt, config, options);
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break;
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case "text":
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facet = new TextSearchFacet(elmt, config, options);
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break;
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default:
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facet = new ListFacet(elmt, config, options);
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}
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this._facets.push({ elmt: elmt, facet: facet });
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Refine.update({ engineChanged: true });
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};
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BrowsingEngine.prototype._createFacetContainer = function() {
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return $('<li></li>').addClass("facet-container").attr("id","facet-" + this._facets.length).hide().appendTo(this._elmts.facets);
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};
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BrowsingEngine.prototype.removeFacet = function(facet) {
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var update = facet.hasSelection();
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for (var i = this._facets.length - 1;i >= 0; i--) {
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var facetRecord = this._facets[i];
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if (facetRecord.facet === facet) {
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this._facets.splice(i, 1);
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facetRecord.facet.dispose();
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// This makes really big facet disappear right away. If you just call remove()
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// then it takes a while for all the event handlers to get unwired, and the UI
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// appear frozen.
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facetRecord.elmt.hide();
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window.setTimeout(function() {
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facetRecord.elmt.remove();
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}, 300);
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break;
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}
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}
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for (var i = 0; i < this._facets.length; i++) {
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if (typeof this._facets[i].facet.update == "function") {
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this._facets[i].facet.update();
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}
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}
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if (update) {
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Refine.update({ engineChanged: true });
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}
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};
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BrowsingEngine.prototype.update = function(onDone) {
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var self = this;
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this._elmts.help.hide();
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this._elmts.header.show();
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this._elmts.controls.css("visibility", "hidden");
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this._elmts.indicator.css("visibility", "visible");
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$.post(
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"/command/core/compute-facets?" + $.param({ project: theProject.id }),
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{ engine: JSON.stringify(this.getJSON(true)) },
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function(data) {
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var facetData = data.facets;
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for (var i = 0; i < facetData.length; i++) {
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self._facets[i].facet.updateState(facetData[i]);
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}
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self._elmts.indicator.css("visibility", "hidden");
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if (self._facets.length > 0) {
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self._elmts.header.show();
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self._elmts.controls.css("visibility", "visible");
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self.resize();
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} else {
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self._elmts.help.show();
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}
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if (onDone) {
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onDone();
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}
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},
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"json"
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);
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};
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BrowsingEngine.prototype.reset = function() {
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for (var i = 0; i < this._facets.length; i++) {
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this._facets[i].facet.reset();
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}
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Refine.update({ engineChanged: true });
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};
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BrowsingEngine.prototype.remove = function() {
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var oldFacets = this._facets;
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this._facets = [];
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for (var i = 0; i < oldFacets.length; i++) {
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var facet = oldFacets[i];
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facet.facet.dispose();
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facet.elmt.hide();
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}
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window.setTimeout(function() {
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for (var i = 0; i < oldFacets.length; i++) {
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oldFacets[i].elmt.remove();
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}
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}, 300);
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Refine.update({ engineChanged: true });
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};
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