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   1  YUI.add('moodle-mod_quiz-quizquestionbank', function (Y, NAME) {
   2  
   3  // This file is part of Moodle - http://moodle.org/
   4  //
   5  // Moodle is free software: you can redistribute it and/or modify
   6  // it under the terms of the GNU General Public License as published by
   7  // the Free Software Foundation, either version 3 of the License, or
   8  // (at your option) any later version.
   9  //
  10  // Moodle is distributed in the hope that it will be useful,
  11  // but WITHOUT ANY WARRANTY; without even the implied warranty of
  12  // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  13  // GNU General Public License for more details.
  14  //
  15  // You should have received a copy of the GNU General Public License
  16  // along with Moodle.  If not, see <http://www.gnu.org/licenses/>.
  17  
  18  
  19  /**
  20   * Add questions from question bank functionality for a popup in quiz editing page.
  21   *
  22   * @package   mod_quiz
  23   * @copyright 2014 The Open University
  24   * @license   http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
  25   */
  26  
  27  var CSS = {
  28          QBANKLOADING:       'div.questionbankloading',
  29          ADDQUESTIONLINKS:   'ul.menu a.questionbank',
  30          ADDTOQUIZCONTAINER: 'td.addtoquizaction',
  31          PREVIEWCONTAINER:   'td.previewaction',
  32          SEARCHOPTIONS:      '#advancedsearch'
  33  };
  34  
  35  var PARAMS = {
  36      PAGE: 'addonpage',
  37      HEADER: 'header'
  38  };
  39  
  40  var POPUP = function() {
  41      POPUP.superclass.constructor.apply(this, arguments);
  42  };
  43  
  44  Y.extend(POPUP, Y.Base, {
  45      loadingDiv: '',
  46      dialogue: null,
  47      addonpage: 0,
  48      searchRegionInitialised: false,
  49  
  50      create_dialogue: function() {
  51          // Create a dialogue on the page and hide it.
  52          config = {
  53              headerContent : '',
  54              bodyContent : Y.one(CSS.QBANKLOADING),
  55              draggable : true,
  56              modal : true,
  57              centered: true,
  58              width: null,
  59              visible: false,
  60              postmethod: 'form',
  61              footerContent: null,
  62              extraClasses: ['mod_quiz_qbank_dialogue']
  63          };
  64          this.dialogue = new M.core.dialogue(config);
  65          this.dialogue.bodyNode.delegate('click', this.link_clicked, 'a[href]', this);
  66          this.dialogue.hide();
  67  
  68          this.loadingDiv = this.dialogue.bodyNode.getHTML();
  69  
  70          Y.later(100, this, function() {this.load_content(window.location.search);});
  71      },
  72  
  73      initializer : function() {
  74          if (!Y.one(CSS.QBANKLOADING)) {
  75              return;
  76          }
  77          this.create_dialogue();
  78          Y.one('body').delegate('click', this.display_dialogue, CSS.ADDQUESTIONLINKS, this);
  79      },
  80  
  81      display_dialogue : function (e) {
  82          e.preventDefault();
  83          this.dialogue.set('headerContent', e.currentTarget.getData(PARAMS.HEADER));
  84  
  85          this.addonpage = e.currentTarget.getData(PARAMS.PAGE);
  86          var controlsDiv = this.dialogue.bodyNode.one('.modulespecificbuttonscontainer');
  87          if (controlsDiv) {
  88              var hidden = controlsDiv.one('input[name=addonpage]');
  89              if (!hidden) {
  90                  hidden = controlsDiv.appendChild('<input type="hidden" name="addonpage">');
  91              }
  92              hidden.set('value', this.addonpage);
  93          }
  94  
  95          this.initialiseSearchRegion();
  96          this.dialogue.show();
  97      },
  98  
  99      load_content : function(queryString) {
 100          Y.log('Starting load.', 'debug', 'moodle-mod_quiz-quizquestionbank');
 101          this.dialogue.bodyNode.append(this.loadingDiv);
 102  
 103          // If to support old IE.
 104          if (window.history.replaceState) {
 105              window.history.replaceState(null, '', M.cfg.wwwroot + '/mod/quiz/edit.php' + queryString);
 106          }
 107  
 108          Y.io(M.cfg.wwwroot + '/mod/quiz/questionbank.ajax.php' + queryString, {
 109              method: 'GET',
 110              on: {
 111                  success: this.load_done,
 112                  failure: this.load_failed
 113              },
 114              context: this
 115          });
 116  
 117          Y.log('Load request sent.', 'debug', 'moodle-mod_quiz-quizquestionbank');
 118      },
 119  
 120      load_done: function(transactionid, response) {
 121          var result = JSON.parse(response.responseText);
 122          if (!result.status || result.status !== 'OK') {
 123              // Because IIS is useless, Moodle can't send proper HTTP response
 124              // codes, so we have to detect failures manually.
 125              this.load_failed(transactionid, response);
 126              return;
 127          }
 128  
 129          Y.log('Load completed.', 'debug', 'moodle-mod_quiz-quizquestionbank');
 130  
 131          this.dialogue.bodyNode.setHTML(result.contents);
 132          Y.use('moodle-question-chooser', function() {M.question.init_chooser({});});
 133          this.dialogue.bodyNode.one('form').delegate('change', this.options_changed, '.searchoptions', this);
 134  
 135          if (this.dialogue.visible) {
 136              Y.later(0, this.dialogue, this.dialogue.centerDialogue);
 137          }
 138          M.question.qbankmanager.init();
 139  
 140          this.searchRegionInitialised = false;
 141          if (this.dialogue.get('visible')) {
 142              this.initialiseSearchRegion();
 143          }
 144  
 145          this.dialogue.fire('widget:contentUpdate');
 146          // TODO MDL-47602 really, the base class should listen for the even fired
 147          // on the previous line, and fix things like makeResponsive.
 148          // However, it does not. So the next two lines are a hack to fix up
 149          // display issues (e.g. overall scrollbars on the page). Once the base class
 150          // is fixed, this comment and the following four lines should be deleted.
 151          if (this.dialogue.get('visible')) {
 152              this.dialogue.hide();
 153              this.dialogue.show();
 154          }
 155      },
 156  
 157      load_failed: function() {
 158          Y.log('Load failed.', 'debug', 'moodle-mod_quiz-quizquestionbank');
 159      },
 160  
 161      link_clicked: function(e) {
 162          // Add question to quiz. mofify the URL, then let it work as normal.
 163          if (e.currentTarget.ancestor(CSS.ADDTOQUIZCONTAINER)) {
 164              e.currentTarget.set('href', e.currentTarget.get('href') + '&addonpage=' + this.addonpage);
 165              return;
 166          }
 167  
 168          // Question preview. Needs to open in a pop-up.
 169          if (e.currentTarget.ancestor(CSS.PREVIEWCONTAINER)) {
 170              openpopup(e, {
 171                  url: e.currentTarget.get('href'),
 172                  name: 'questionpreview',
 173                  options: 'height=600,width=800,top=0,left=0,menubar=0,location=0,scrollbars,resizable,toolbar,status,directories=0,fullscreen=0,dependent'
 174              });
 175              return;
 176          }
 177  
 178          // Click on expand/collaspse search-options. Has its own handler.
 179          // We should not interfere.
 180          if (e.currentTarget.ancestor(CSS.SEARCHOPTIONS)) {
 181              return;
 182          }
 183  
 184          // Anything else means reload the pop-up contents.
 185          e.preventDefault();
 186          this.load_content(e.currentTarget.get('search'));
 187      },
 188  
 189      options_changed: function(e) {
 190          e.preventDefault();
 191          this.load_content('?' + Y.IO.stringify(e.currentTarget.get('form')));
 192      },
 193  
 194      initialiseSearchRegion: function() {
 195          if (this.searchRegionInitialised === true) {
 196              return;
 197          }
 198          if (!Y.one(CSS.SEARCHOPTIONS)) {
 199              return;
 200          }
 201  
 202          M.util.init_collapsible_region(Y, "advancedsearch", "question_bank_advanced_search",
 203                  M.util.get_string('clicktohideshow', 'moodle'));
 204          this.searchRegionInitialised = true;
 205      }
 206  });
 207  
 208  M.mod_quiz = M.mod_quiz || {};
 209  M.mod_quiz.quizquestionbank = M.mod_quiz.quizquestionbank || {};
 210  M.mod_quiz.quizquestionbank.init = function() {
 211      return new POPUP();
 212  };
 213  
 214  
 215  }, '@VERSION@', {
 216      "requires": [
 217          "base",
 218          "event",
 219          "node",
 220          "io",
 221          "io-form",
 222          "yui-later",
 223          "moodle-question-qbankmanager",
 224          "moodle-core-notification-dialogue"
 225      ]
 226  });