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   1  // This file is part of Moodle - http://moodle.org/
   2  //
   3  // Moodle is free software: you can redistribute it and/or modify
   4  // it under the terms of the GNU General Public License as published by
   5  // the Free Software Foundation, either version 3 of the License, or
   6  // (at your option) any later version.
   7  //
   8  // Moodle is distributed in the hope that it will be useful,
   9  // but WITHOUT ANY WARRANTY; without even the implied warranty of
  10  // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  11  // GNU General Public License for more details.
  12  //
  13  // You should have received a copy of the GNU General Public License
  14  // along with Moodle.  If not, see <http://www.gnu.org/licenses/>.
  15  
  16  /**
  17   * Javascript helper function for wiki
  18   *
  19   * @package   mod-wiki
  20   * @copyright 2010 Dongsheng Cai <dongsheng@moodle.com>
  21   * @license   http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
  22   */
  23  
  24  M.mod_wiki = {};
  25  
  26  M.mod_wiki.init = function(Y, args) {
  27      var WikiHelper = function(args) {
  28          WikiHelper.superclass.constructor.apply(this, arguments);
  29      }
  30      WikiHelper.NAME = "WIKI";
  31      WikiHelper.ATTRS = {
  32          options: {},
  33          lang: {}
  34      };
  35      Y.extend(WikiHelper, Y.Base, {
  36          initializer: function(args) {
  37          }
  38      });
  39      new WikiHelper(args);
  40  };
  41  M.mod_wiki.renew_lock = function() {
  42      var args = {
  43          sesskey: M.cfg.sesskey,
  44          pageid: wiki.pageid
  45      };
  46      if (wiki.section) {
  47          args.section = wiki.section;
  48      }
  49      YUI().use('io', function(Y) {
  50          function renewLock() {
  51              Y.io('lock.php?' + build_querystring(args), {
  52                  method: 'POST'
  53              });
  54          }
  55          setInterval(renewLock, wiki.renew_lock_timeout * 1000);
  56      });
  57  };
  58  M.mod_wiki.history = function(Y, args) {
  59      var compare = false;
  60      var comparewith = false;
  61      var radio  = document.getElementsByName('compare');
  62      var radio2 = document.getElementsByName('comparewith');
  63      for(var i=0; i<radio.length;i++){
  64            if(radio[i].checked){
  65              compare = true;
  66          }
  67          if(!comparewith){
  68              radio[i].disabled=true;
  69              radio2[i].disabled=false;
  70          } else if(!compare && comparewith){
  71              radio[i].disabled=false;
  72              radio2[i].disabled=false;
  73          } else {
  74              radio[i].disabled=false;
  75              radio2[i].disabled=true;
  76          }
  77  
  78          if(radio2[i].checked){
  79              comparewith = true;
  80          }
  81      }
  82  }
  83  
  84  M.mod_wiki.deleteversion = function(Y, args) {
  85      var fromversion = false;
  86      var toversion = false;
  87      var radio  = document.getElementsByName('fromversion');
  88      var radio2 = document.getElementsByName('toversion');
  89      var length = radio.length;
  90      //version to should be more then version from
  91      for (var i = 0; i < radio.length; i++) {
  92          //if from-version is selected then disable all to-version options after that.
  93          if (fromversion) {
  94              radio2[i].disabled = true;
  95          } else {
  96              radio2[i].disabled = false;
  97          }
  98          //check when to-version option is selected
  99          if (radio2[i].checked) {
 100              toversion = true;
 101          }
 102          //make sure to-version should be >= from-version
 103          if (radio[i].checked) {
 104              fromversion = true;
 105              if (!toversion) {
 106                  radio2[i].checked = true;
 107              }
 108          }
 109      }
 110      //avoid selecting first and last version
 111      if (radio[0].checked && radio2[length-1].checked) {
 112          radio2[length - 2].checked = true;
 113      } else if(radio[length - 1].checked && radio2[0].checked) {
 114          radio2[1].checked = true;
 115          radio2[0].disabled = true;
 116          toversion = true;
 117      }
 118  }
 119  
 120  M.mod_wiki.init_tree = function(Y, expand_all, htmlid) {
 121      Y.use('yui2-treeview', function(Y) {
 122          var tree = new Y.YUI2.widget.TreeView(htmlid);
 123  
 124          tree.subscribe("clickEvent", function(node, event) {
 125              // we want normal clicking which redirects to url
 126              return false;
 127          });
 128  
 129          if (expand_all) {
 130              tree.expandAll();
 131          }
 132  
 133          tree.render();
 134      });
 135  };