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   1  /**
   2   * @author Dongsheng Cai <[email protected]>
   3   */
   4  
   5  // No need to require lang packs in moodle plugins.
   6  
   7  var ed, url;
   8  
   9  if (url = tinyMCEPopup.getParam("media_external_list_url")) {
  10      document.write('<script language="javascript" type="text/javascript" src="' + tinyMCEPopup.editor.documentBaseURI.toAbsolute(url) + '"></script>');
  11  }
  12  
  13  function init() {
  14      ed = tinyMCEPopup.editor;
  15      document.getElementById('filebrowsercontainer').innerHTML = getFileBrowserHTML('filebrowser','src','media','media');
  16  }
  17  
  18  function insertMedia() {
  19      var f = document.forms[0];
  20      var url = f.filename.value;
  21      var linkname = url.substring(url.lastIndexOf('/')+1);
  22      var h = '<a href="'+f.src.value+'">'+linkname+'</a>';
  23      ed.execCommand('mceInsertContent', false, h);
  24      tinyMCEPopup.close();
  25  }
  26  
  27  function serializeParameters() {
  28      var d = document, s = '';
  29      s += getStr(null, 'src');
  30  
  31      // delete the tail comma
  32      s = s.length > 0 ? s.substring(0, s.length - 1) : s;
  33  
  34      return s;
  35  }
  36  
  37  function getStr(p, n, d) {
  38      var e = document.forms[0].elements[(p != null ? p + "_" : "") + n];
  39      var v = e.type == "hidden" ? e.value : e.options[e.selectedIndex].value;
  40  
  41      if (n == 'src')
  42              v = tinyMCEPopup.editor.convertURL(v, 'src', null);
  43  
  44      return ((n == d || v == '') ? '' : n + ":'" + jsEncode(v) + "',");
  45  }
  46  
  47  function jsEncode(s) {
  48      s = s.replace(new RegExp('\\\\', 'g'), '\\\\');
  49      s = s.replace(new RegExp('"', 'g'), '\\"');
  50      s = s.replace(new RegExp("'", 'g'), "\\'");
  51  
  52      return s;
  53  }
  54  
  55  function generatePreview(c) {
  56      var f = document.forms[0], p = document.getElementById('prev');
  57  
  58      p.innerHTML = '<!-- x --->';
  59      var re = new RegExp("(.+)\#(.+)", "i");
  60      var result = f.src.value.match(re);
  61      if (result) {
  62          f.src.value = result[1];
  63          f.filename.value = result[2];
  64      } else {
  65          f.src.value = f.src.value;
  66          f.filename.value = f.src.value;
  67      }
  68  
  69      // After constrain
  70      var pl = serializeParameters();
  71      if (pl == '') {
  72              p.innerHTML = '';
  73              return;
  74      }
  75      pl = tinyMCEPopup.editor.plugins.moodlemedia._parse(pl);
  76  
  77      if (!pl.src) {
  78              p.innerHTML = '';
  79              return;
  80      }
  81  
  82      pl.src = tinyMCEPopup.editor.documentBaseURI.toAbsolute(pl.src);
  83  
  84      // NOTE: Do not try to prevent https security popups here - users would get them later on real page anyway!
  85  
  86      // We can not include URL directly in parameters because some security filters might block it.
  87      p.innerHTML = '<iframe src="' + tinyMCEPopup.editor.getParam("moodle_plugin_base") + 'moodlemedia/preview.php'
  88          + '?media=' + encodeURIComponent(encode64(pl.src.toString()))
  89          + '&sesskey=' + encodeURIComponent(parent.M.cfg.sesskey)
  90          + '" width="100%" height="100%"></iframe>';
  91  }
  92  
  93  function encode64(input) {
  94      /*
  95        CryptoMX Tools
  96        Copyright (C) 2004 - 2006 Derek Buitenhuis
  97  
  98        This program is free software; you can redistribute it and/or
  99        modify it under the terms of the GNU General Public License
 100        as published by the Free Software Foundation; either version 2
 101        of the License, or (at your option) any later version.
 102  
 103        This program is distributed in the hope that it will be useful,
 104        but WITHOUT ANY WARRANTY; without even the implied warranty of
 105        MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 106        GNU General Public License for more details.
 107  
 108        You should have received a copy of the GNU General Public License
 109        along with this program; if not, write to the Free Software
 110        Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
 111     */
 112      var keyStr = "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/=";
 113      var output = "";
 114      var chr1, chr2, chr3 = "";
 115      var enc1, enc2, enc3, enc4 = "";
 116      var i = 0;
 117  
 118      do {
 119          chr1 = input.charCodeAt(i++);
 120          chr2 = input.charCodeAt(i++);
 121          chr3 = input.charCodeAt(i++);
 122  
 123          enc1 = chr1 >> 2;
 124          enc2 = ((chr1 & 3) << 4) | (chr2 >> 4);
 125          enc3 = ((chr2 & 15) << 2) | (chr3 >> 6);
 126          enc4 = chr3 & 63;
 127  
 128          if (isNaN(chr2)) {
 129              enc3 = enc4 = 64;
 130          } else if (isNaN(chr3)) {
 131              enc4 = 64;
 132          }
 133  
 134          output = output +
 135              keyStr.charAt(enc1) +
 136              keyStr.charAt(enc2) +
 137              keyStr.charAt(enc3) +
 138              keyStr.charAt(enc4);
 139          chr1 = chr2 = chr3 = "";
 140          enc1 = enc2 = enc3 = enc4 = "";
 141      } while (i < input.length);
 142  
 143      return output;
 144  }
 145  
 146  tinyMCEPopup.onInit.add(init);