instructure_helper.js

/**
 * Copyright (C) 2011 Instructure, Inc.
 *
 * This file is part of Canvas.
 *
 * Canvas is free software: you can redistribute it and/or modify it under
 * the terms of the GNU Affero General Public License as published by the Free
 * Software Foundation, version 3 of the License.
 *
 * Canvas is distributed in the hope that it will be useful, but WITHOUT ANY
 * WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
 * A PARTICULAR PURPOSE. See the GNU Affero General Public License for more
 * details.
 *
 * You should have received a copy of the GNU Affero General Public License
 * along with this program. If not, see <http://www.gnu.org/licenses/>.
 */

//create a global object "INST" that we will have be Instructure's namespace.
define([
  'INST' /* INST */,
  'i18n!instructure',
  'jquery' /* $ */,
  'jqueryui/dialog'
], function(INST, I18n, $) {

  function getTld(hostname){
    hostname = (hostname || "").split(":")[0];
    var parts = hostname.split("."),
        length = parts.length;
    return ( length > 1  ?
      [ parts[length - 2] , parts[length - 1] ] :
      parts
    ).join("");
  }
  var locationTld = getTld(window.location.hostname);
  $.expr[':'].external = function(element){
    var href = $(element).attr('href');
    //if a browser doesnt support <a>.hostname then just dont mark anything as external, better to not get false positives.
    return !!(href && href.length && !href.match(/^(mailto\:|javascript\:)/) && element.hostname && getTld(element.hostname) != locationTld);
  };

  window.equella = {
    ready: function(data) {
      $(document).triggerHandler('equella_ready', data);
    },
    cancel: function() {
      $(document).triggerHandler('equella_cancel');
    }
  };
  $(document).bind('equella_ready', function(event, data) {
    $("#equella_dialog").triggerHandler('equella_ready', data);
  }).bind('equella_cancel', function() {
    $("#equella_dialog").dialog('close');
  });

  window.external_tool_dialog = {
    ready: function(data) {
      var e = jQuery.Event( 'selection' )
      e.contentItems = data
      $("#resource_selection_dialog:visible").triggerHandler(e);
      $("#homework_selection_dialog:visible").triggerHandler(e);
    },
    cancel: function() {
      $("#external_tool_button_dialog").dialog('close');
      $("#resource_selection_dialog").dialog('close');
      $("#homework_selection_dialog:visible").dialog('close');
    }
  };

  window.jsonFlickrApi = function(data) {
    $("#instructure_image_search").triggerHandler('search_results', data);
  };

});