clipboard.js

   1 copyhint = true;
   2 function clipboardcopy(val) {
   3         if (window && window.clipboardData) {
   4                 // msie
   5                 return window.clipboardData.setData('text', val);
   6         }
   7
   8         if (netscape && netscape.security) {
   9                 // request access to XPCOM api
  10                 try {
  11                         netscape.security.PrivilegeManager.enablePrivilege('UniversalXPConnect');
  12                 }
  13                 catch(e) {
  14                         if (copyhint)
  15                                 alert('Cannot access clipboard.\nSet boolean signed.applets.codebase_principal_support in about:config');
  16                         copyhint = false;
  17                         return false;
  18                 }
  19
  20                 // use nsIClipboard interface
  21                 try {
  22                         Components.classes['@mozilla.org/widget/clipboardhelper;1']
  23                                 .getService(Components.interfaces.nsIClipboardHelper)
  24                                 .copyString(val);
  25                         return true;
  26                 }
  27                 catch(e) {
  28                         alert('Copy failed');
  29                         return false;
  30                 }
  31         }
  32 }
  33
  34 charmatch = /^U\+([0-9A-F]{4,})/;
  35 function copycellchars() {
  36         var unicode = charmatch.exec(this.title);
  37         var str = String.fromCharCode(parseInt(unicode[1], 16));
  38         return clipboardcopy(str);
  39 }
  40
  41 var cells = document.getElementsByTagName('TD');
  42 for (var i = 0; i < cells.length; i++) {
  43         if (!cells[i].title) continue;
  44         if (!charmatch.test(cells[i].title)) continue;
  45         cells[i].onclick = copycellchars;
  46 }
  47