RandomSec/extensions/freebase/module/scripts/dialogs/extend-data-preview-dialog.js

/*

Copyright 2010, Google Inc.
All rights reserved.

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 * Redistributions of source code must retain the above copyright
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 */

function ExtendDataPreviewDialog(column, columnIndex, rowIndices, onDone) {
  this._column = column;
  this._columnIndex = columnIndex;
  this._rowIndices = rowIndices;
  this._onDone = onDone;
  this._extension = { properties: [] };

  var self = this;
  this._dialog = $(DOM.loadHTML("freebase", "scripts/dialogs/extend-data-preview-dialog.html"));
  this._elmts = DOM.bind(this._dialog);
  this._elmts.dialogHeader.text("Add Columns from Freebase Based on Column " + column.name);
  this._elmts.resetButton.click(function() {
    self._extension.properties = [];
    self._update();
  });

  this._elmts.okButton.click(function() {
    if (self._extension.properties.length === 0) {
      alert("Please add some properties first.");
    } else {
      DialogSystem.dismissUntil(self._level - 1);
      self._onDone(self._extension);
    }
  });
  this._elmts.cancelButton.click(function() {
    DialogSystem.dismissUntil(self._level - 1);
  });

  var dismissBusy = DialogSystem.showBusy();
  var type = (column.reconConfig) && (column.reconConfig.type) ? column.reconConfig.type.id : "/common/topic";

  ExtendDataPreviewDialog.getAllProperties(type, function(properties) {
    dismissBusy();
    self._show(properties);
  });
}

ExtendDataPreviewDialog.getAllProperties = function(typeID, onDone) {
  var done = false;

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

      var allProperties = [];
      for (var i = 0; i < data.properties.length; i++) {
        var property = data.properties[i];
        var property2 = {
            id: property.id,
            name: property.name
        };
        if ("id2" in property) {
          property2.expected = property.schema2;
          property2.properties = [{
            id: property.id2,
            name: property.name2,
            expected: property.expects
          }];
        } else {
          property2.expected = property.expects;
        }
        allProperties.push(property2);
      }
      allProperties.sort(function(a, b) { return a.name.localeCompare(b.name); });

      onDone(allProperties);
    }
  );

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

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

ExtendDataPreviewDialog.prototype._show = function(properties) {
  this._level = DialogSystem.showDialog(this._dialog);

  var n = this._elmts.suggestedPropertyContainer.offset().top +
  this._elmts.suggestedPropertyContainer.outerHeight(true) -
  this._elmts.addPropertyInput.offset().top;

  this._elmts.previewContainer.height(Math.floor(n));

  var self = this;
  var container = this._elmts.suggestedPropertyContainer;
  var renderSuggestedProperty = function(property) {
    var label = ("properties" in property) ? (property.name + " &raquo; " + property.properties[0].name) : property.name;
    var div = $('<div>').addClass("suggested-property").appendTo(container);

    $('<a>')
    .attr("href", "javascript:{}")
    .html(label)
    .appendTo(div)
    .click(function() {
      self._addProperty(property);
    });
  };
  for (var i = 0; i < properties.length; i++) {
    renderSuggestedProperty(properties[i]);
  }

  var suggestConfig = {
      filter: '(all type:/type/property)'
  };
  if ((this._column.reconConfig) && (this._column.reconConfig.type)) {
    suggestConfig.filter = '(all type:/type/property (any namespace:/type/object namespace:' + this._column.reconConfig.type.id + '))';
  }

  this._elmts.addPropertyInput.suggestP(suggestConfig).bind("fb-select", function(evt, data) {
    var expected = data.expected_type;
    self._addProperty({
      id : data.id,
      name: data.name,
      expected: {
        id: expected.id,
        name: expected.name
      }
    });
  });
};

ExtendDataPreviewDialog.prototype._update = function() {
  this._elmts.previewContainer.empty().text("Querying Freebase ...");

  var self = this;
  var params = {
      project: theProject.id,
      columnName: this._column.name
  };

  $.post(
    "/command/freebase/preview-extend-data?" + $.param(params), 
    {
      rowIndices: JSON.stringify(this._rowIndices),
      extension: JSON.stringify(this._extension)
    },
    function(data) {
      self._renderPreview(data);
    },
    "json"
  );
};

ExtendDataPreviewDialog.prototype._addProperty = function(p) {
  var addSeveralToList = function(properties, oldProperties) {
    for (var i = 0; i < properties.length; i++) {
      addToList(properties[i], oldProperties);
    }
  };
  var addToList = function(property, oldProperties) {
    for (var i = 0; i < oldProperties.length; i++) {
      var oldProperty = oldProperties[i];
      if (oldProperty.id == property.id) {
        if ("included" in property) {
          oldProperty.included = "included" in oldProperty ? 
              (oldProperty.included || property.included) : 
                property.included;
        }

        if ("properties" in property) {
          if ("properties" in oldProperty) {
            addSeveralToList(property.properties, oldProperty.properties);
          } else {
            oldProperty.properties = property.properties;
          }
        }
        return;
      }
    }

    oldProperties.push(property);
  };

  addToList(p, this._extension.properties);

  this._update();
};

ExtendDataPreviewDialog.prototype._renderPreview = function(data) {
  var self = this;
  var container = this._elmts.previewContainer.empty();
  if (data.code == "error") {
    container.text("Error.");
    return;
  }

  var table = $('<table>')[0];
  var trHead = table.insertRow(table.rows.length);
  $('<th>').appendTo(trHead).text(this._column.name);

  var renderColumnHeader = function(column) {
    var th = $('<th>').appendTo(trHead);

    $('<span>').html(column.names.join(" &raquo; ")).appendTo(th);
    $('<br>').appendTo(th);

    $('<a href="javascript:{}"></a>')
    .text("remove")
    .addClass("action")
    .attr("title", "Remove this column")
    .click(function() {
      self._removeProperty(column.path);
    }).appendTo(th);

    $('<a href="javascript:{}"></a>')
    .text("constrain")
    .addClass("action")
    .attr("title", "Add constraints to this column")
    .click(function() {
      self._constrainProperty(column.path);
    }).appendTo(th);
  };
  for (var c = 0; c < data.columns.length; c++) {
    renderColumnHeader(data.columns[c]);
  }

  for (var r = 0; r < data.rows.length; r++) {
    var tr = table.insertRow(table.rows.length);
    var row = data.rows[r];

    for (var c = 0; c < row.length; c++) {
      var td = tr.insertCell(tr.cells.length);
      var cell = row[c];
      if (cell !== null) {
        if ($.isPlainObject(cell)) {
          $('<a>').attr("href", "http://www.freebase.com/view" + cell.id).text(cell.name).appendTo(td);
        } else {
          $('<span>').text(cell).appendTo(td);
        }
      }
    }
  }

  container.append(table);
};

ExtendDataPreviewDialog.prototype._removeProperty = function(path) {
  var removeFromList = function(path, index, properties) {
    var id = path[index];

    for (var i = properties.length - 1; i >= 0; i--) {
      var property = properties[i];
      if (property.id == id) {
        if (index === path.length - 1) {
          if ("included" in property) {
            delete property.included;
          }
        } else if ("properties" in property && property.properties.length > 0) {
          removeFromList(path, index + 1, property.properties);
        }

        if (!("properties" in property) || property.properties.length === 0) {
          properties.splice(i, 1);
        }

        return;
      }
    }
  };

  removeFromList(path, 0, this._extension.properties);

  this._update();
};

ExtendDataPreviewDialog.prototype._findProperty = function(path) {
  var find = function(path, index, properties) {
    var id = path[index];

    for (var i = properties.length - 1; i >= 0; i--) {
      var property = properties[i];
      if (property.id == id) {
        if (index === path.length - 1) {
          return property;
        } else if ("properties" in property && property.properties.length > 0) {
          return find(path, index + 1, property.properties);
        }
        break;
      }
    }

    return null;
  };

  return find(path, 0, this._extension.properties);
};

ExtendDataPreviewDialog.prototype._constrainProperty = function(path) {
  var self = this;
  var property = this._findProperty(path);

  var frame = DialogSystem.createDialog();
  frame.width("500px");

  var header = $('<div></div>').addClass("dialog-header").text("Constrain " + path.join(" > ")).appendTo(frame);
  var body = $('<div></div>').addClass("dialog-body").appendTo(frame);
  var footer = $('<div></div>').addClass("dialog-footer").appendTo(frame);

  body.html(
    '<div class="grid-layout layout-normal layout-full"><table>' +
    '<tr><td>' +
    'Enter MQL query constraints as JSON' +
    '</td></tr>' +
    '<tr><td>' +
    '<textarea style="width: 100%; height: 300px; font-family: monospace;" bind="textarea"></textarea>' +
    '</td></tr>' +
    '</table></div>'
  );
  var bodyElmts = DOM.bind(body);

  if ("constraints" in property) {
    bodyElmts.textarea[0].value = JSON.stringify(property.constraints, null, 2);
  } else {
    bodyElmts.textarea[0].value = JSON.stringify({ "limit" : 10 }, null, 2);
  }

  footer.html(
    '<button class="button" bind="okButton">&nbsp;&nbsp;OK&nbsp;&nbsp;</button>' +
    '<button class="button" bind="cancelButton">Cancel</button>'
  );
  var footerElmts = DOM.bind(footer);

  var level = DialogSystem.showDialog(frame);
  var dismiss = function() {
    DialogSystem.dismissUntil(level - 1);
  };

  footerElmts.cancelButton.click(dismiss);
  footerElmts.okButton.click(function() {
    try {
      var o = JSON.parse(bodyElmts.textarea[0].value);
      if (o === undefined) {
        alert("Please ensure that the JSON you enter is valid.");
        return;
      }

      if ($.isArray(o) && o.length == 1) {
        o = o[0];
      }
      if (!$.isPlainObject(o)) {
        alert("The JSON you enter must be an object, that is, it is of this form { ... }.");
        return;
      }

      property.constraints = o;

      dismiss();

      self._update();
    } catch (e) {
      //console.log(e);
    }
  });

  bodyElmts.textarea.focus();
};