RandomSec/extensions/freebase/module/scripts/dialogs/schema-alignment/ui-link.js

/*

Copyright 2010, Google Inc.
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 * Redistributions of source code must retain the above copyright
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 */

SchemaAlignmentDialog.UILink = function(dialog, link, table, options, parentUINode) {
  this._dialog = dialog;
  this._link = link;
  this._options = options;
  this._parentUINode = parentUINode;

  // Make sure target node is there
  this._link.target = this._link.target || { nodeType: "cell-as-value" }

  this._tr = table.insertRow(table.rows.length);
  this._tdMain = this._tr.insertCell(0);
  this._tdToggle = this._tr.insertCell(1);
  this._tdDetails = this._tr.insertCell(2);

  $(this._tdMain).addClass("schema-alignment-link-main").attr("width", "250").addClass("padded");
  $(this._tdToggle).addClass("schema-alignment-link-toggle").attr("width", "1%").addClass("padded");
  $(this._tdDetails).addClass("schema-alignment-link-details").attr("width", "90%");

  this._collapsedDetailDiv = $('<div></div>').appendTo(this._tdDetails).addClass("padded").html("...");
  this._expandedDetailDiv = $('<div></div>').appendTo(this._tdDetails).addClass("schema-alignment-detail-container");
  var self = this;
  var show = function() {
    if (self._options.expanded) {
      self._collapsedDetailDiv.hide();
      self._expandedDetailDiv.show();
    } else {
      self._collapsedDetailDiv.show();
      self._expandedDetailDiv.hide();
    }
  };
  show();

  $(this._tdToggle).html("&nbsp;");
  $('<img />')
  .attr("src", this._options.expanded ? "images/expanded.png" : "images/collapsed.png")
  .appendTo(this._tdToggle)
  .click(function() {
    self._options.expanded = !self._options.expanded;

    $(this).attr("src", self._options.expanded ? "images/expanded.png" : "images/collapsed.png");

    show();
  });

  this._renderMain();
  this._renderDetails();
};

SchemaAlignmentDialog.UILink.prototype._renderMain = function() {
  $(this._tdMain).empty();

  var label = this._link.property !== null ? 
      (this._link.property.id + ((this._link.condition) ? " [?]" : "")) : 
      "property?";

  var self = this;

  $('<img />')
  .attr("title", "remove property")
  .attr("src", "images/close.png")
  .css("cursor", "pointer")
  .prependTo(this._tdMain)
  .click(function() {
    window.setTimeout(function() {
      self._parentUINode.removeLink(self);
      self._tr.parentNode.removeChild(self._tr);
      self._dialog.preview();
    }, 100);
  });

  var a = $('<a href="javascript:{}"></a>')
  .addClass("schema-alignment-link-tag")
  .html(label)
  .appendTo(this._tdMain)
  .click(function(evt) {
    self._startEditProperty(this);
  });

  $('<img />').attr("src", "images/arrow-start.png").prependTo(a);
  $('<img />').attr("src", "images/arrow-end.png").appendTo(a);
};

SchemaAlignmentDialog.UILink.prototype._renderDetails = function() {
  if (this._targetUI) {
    this._targetUI.dispose();
  }
  if (this._tableDetails) {
    this._tableDetails.remove();
  }

  this._tableDetails = $('<table></table>').addClass("schema-alignment-table-layout").appendTo(this._expandedDetailDiv);
  this._targetUI = new SchemaAlignmentDialog.UINode(
      this._dialog,
      this._link.target, 
      this._tableDetails[0], 
      { expanded: "links" in this._link.target && this._link.target.links.length > 0 });
};

SchemaAlignmentDialog.UILink.prototype._startEditProperty = function(elmt) {
  var sourceTypeID = this._parentUINode.getExpectedType();
  var targetNode = this._targetUI._node;
  var targetTypeID = "type" in targetNode && targetNode.type !== null ? targetNode.type.id : null;
  var targetTypeName = "columnNames" in targetNode ? targetNode.columnNames[0] : null;

  if (sourceTypeID !== null) {
    var self = this;
    var dismissBusy = DialogSystem.showBusy();

    var instanceCount = 0;
    var outgoing = [];
    var incoming = [];

    var onDone = function(properties) {
      dismissBusy();

      self._showPropertySuggestPopup(
          elmt, 
          properties
      );
    };

    SchemaAlignmentDialog.UILink._getPropertiesOfType(
        sourceTypeID,
        targetTypeID,
        targetTypeName,
        onDone
    );
  } else {
    this._showPropertySuggestPopup(elmt, []);
  }
};

SchemaAlignmentDialog.UILink._getPropertiesOfType = function(typeID, targetTypeID, targetTypeName, onDone) {
  var done = false;

  var params = {
      "type" : typeID
  };
  if (targetTypeID !== null) {
    params.expects = targetTypeID;
  } else if (targetTypeName !== null) {
    params.expects = targetTypeName;
  }

  $.getJSON(
    Refine.refineHelperService + "/get_properties_of_type?" + $.param(params) + "&callback=?",
    null,
    function(data) {
      if (done) return;

      done = true;
      onDone(data.properties || []);
    }
  );

  window.setTimeout(function() {
    if (done) return;

    done = true;
    onDone([]);
  }, 7000); // time to give up?
};

SchemaAlignmentDialog.UILink.prototype._showPropertySuggestPopup = function(elmt, suggestions) {
  self = this;

  var menu = MenuSystem.createMenu().width("350px");

  var commitProperty = function(p) {
    window.setTimeout(function() { MenuSystem.dismissAll(); }, 100);

    if ("id2" in p) {
      // self._targetUI.dispose();
      self._link.property = {
        id: p.id,
        name: p.name
      };
      self._link.target = {
        nodeType: "anonymous",
        links: [{
          property: {
            id: p.id2,
            name: p.name2
          },
          target: self._link.target
        }]
      };

      self._renderDetails();
    } else {
      self._link.property = {
          id: p.id,
          name: p.name
      };
    }

    var conditionColumnName = conditionalSelect[0].value;
    if (conditionColumnName != "") {
      self._link.condition = { columnName: conditionColumnName };
    } else {
      delete self._link.condition;
    }

    self._configureTarget();
  };

  var divConditional = $('<div>')
  .addClass("schema-alignment-link-menu-section")
  .html("Assert link when 'true' is found in column<br/>").appendTo(menu);

  var conditionalSelect = $('<select>').appendTo(divConditional);
  $('<option>')
  .text("(always assert)")
  .attr("value", "")
  .attr("name", "schema-alignment-link-menu-condition")
  .appendTo(conditionalSelect);

  for (var c = 0; c < theProject.columnModel.columns.length; c++) {
    var column = theProject.columnModel.columns[c];
    var option = $('<option>')
    .text(column.name)
    .attr("value", column.name)
    .attr("name", "schema-alignment-link-menu-condition")
    .appendTo(conditionalSelect);

    if ((self._link.condition) && column.name == self._link.condition.columnName) {
      option.attr("selected", "true");
    }
  }

  var divSearch;
  if (suggestions.length > 0) {
    divSearch = $('<div>')
    .addClass("schema-alignment-link-menu-section")
    .css("margin-bottom", "2em")
    .html('<div>Search for a property or pick one below</div>').appendTo(menu);

    var createSuggestion = function(suggestion) {
      var menuItem = MenuSystem.createMenuItem().appendTo(menu);

      $('<span>')
      .text(suggestion.name)
      .attr("title", suggestion.id)
      .appendTo(menuItem);

      if ("name2" in suggestion) {
        $('<span>').html(" &raquo; ").appendTo(menuItem);

        $('<span>')
        .text(suggestion.name2)
        .attr("title", suggestion.id2)
        .appendTo(menuItem);
      }

      menuItem.click(function() {
        commitProperty(suggestion);
      });
    };

    for (var i = 0; i < suggestions.length && i < 10; i++) {
      createSuggestion(suggestions[i]);
    }
  } else {
    divSearch = $('<div>')
    .addClass("schema-alignment-link-menu-section-last")
    .html('<div>Search for a property</div>').appendTo(menu);
  }
  var input = $('<input />').appendTo($('<div>').appendTo(divSearch));

  MenuSystem.showMenu(menu, function(){});
  MenuSystem.positionMenuAboveBelow(menu, $(elmt));

  var suggestOptions = {
      type : '/type/property'
  };
  var sourceTypeID = this._parentUINode.getExpectedType();
  if (sourceTypeID !== null) {
    suggestOptions.ac_param = { schema: sourceTypeID };
  }
  input.suggestP(suggestOptions).bind("fb-select", function(e, data) { commitProperty(data); });

  input[0].focus();
};

SchemaAlignmentDialog.UILink.prototype.getJSON = function() {
  if ("property" in this._link && this._link.property !== null &&
      "target" in this._link && this._link.target !== null) {

    var targetJSON = this._targetUI.getJSON();
    if (targetJSON !== null) {
      var json = {
          property: cloneDeep(this._link.property),
          target: targetJSON
      };
      if (this._link.condition) {
        json.condition = cloneDeep(this._link.condition);
      }
      return json;
    }
  }
  return null;
};

SchemaAlignmentDialog.UILink.prototype._configureTarget = function() {
  var self = this;
  var dismissBusy = DialogSystem.showBusy();

  $.getJSON(
    "http://api.freebase.com/api/service/mqlread?query=" + JSON.stringify({
      query: {
        "id" : this._link.property.id,
        "type" : "/type/property",
        "expected_type" : {
          "id" : null,
          "name" : null,
          "/freebase/type_hints/mediator" : null
        }
      }
    }) + "&callback=?",
    null,
    function(o) {
      dismissBusy();

      if ("result" in o) {
        var expected_type = o.result.expected_type;
        self._link.target.type = {
            id: expected_type.id,
            name: expected_type.name
        };
        if (expected_type["/freebase/type_hints/mediator"] === true) {
          self._link.target.nodeType = "anonymous";
        } else if (expected_type.id == "/type/key") {
          self._link.target.nodeType = "cell-as-key";
        } else if (expected_type.id.match(/^\/type\//)) {
          self._link.target.nodeType = "cell-as-value";
        } else if (!("topic" in self._link.target)) {
          self._link.target.nodeType = "cell-as-topic";
          self._link.target.createForNoReconMatch = true;
        }

        self._targetUI.render();
      }

      self._renderMain();
      self._dialog.preview();
    },
    "jsonp"
  );
};