home *** CD-ROM | disk | FTP | other *** search
/ PC User 2001 August / APC_Aug2001_CD2.iso / features / web_dev / files / mwjpp516.exe / %MAINDIR% / Tools / Bookmark / gotoPrevious.script < prev    next >
Encoding:
Text File  |  2001-06-19  |  1.4 KB  |  76 lines
  1. !!Script 
  2. // Copyright ⌐ 2001 - Miguel Angel Rojas
  3. // @Modified build 497 cm20010225
  4.  
  5. /**
  6. @Tool: gotoPrevious~goes to the previous bookmark.
  7. If previous bookmark does not exist, this will be the last.
  8. */
  9.  
  10. function DoCommand()
  11. { 
  12.     var bookmarkMap = getMapFile( "Bookmarks" );
  13.     
  14.     if ( bookmarkMap.count == 0 )
  15.     {
  16.         return;
  17.     }
  18.     
  19.     var currentBookmark = getGlobal( "currentBookmark", -1);
  20.     var list = getBookmarksAsList( bookmarkMap );
  21.     
  22.     if ( currentBookmark > 0 ) // is not the first
  23.     {
  24.         currentBookmark -= 1;
  25.     }
  26.     else
  27.     {
  28.         currentBookmark = list.count-1;
  29.     }
  30.     
  31.     var position = list.getPosition( currentBookmark );
  32.     
  33.     if ( position && position.valid )
  34.     {
  35.         setGlobal( "currentBookmark", currentBookmark );
  36.         
  37.         // alert( "gotoPrevious="+getGlobal( "currentBookmark" ) );
  38.         
  39.         var previous = list.getAt( position );
  40.         var bookmark = bookmarkMap.lookup( previous.value.hashKey );
  41.         if (bookmark)
  42.         {
  43.             if (bookmark.valid())
  44.             {
  45.                 bookmark.go();
  46.             }
  47.             
  48.         }
  49.     }
  50. }
  51.  
  52. function getBookmarksAsList( bookmarkMap )
  53. { 
  54.     var list = newList();
  55.     var position = bookmarkMap.getHeadPosition();
  56.     
  57.     while ( position && position.valid )
  58.     {
  59.         var next = bookmarkMap.getNext( position );
  60.         if (next.value.valid())
  61.         {
  62.             list.addTail(next);
  63.         }
  64.         else
  65.         {
  66.             bookmarkMap.remove(next.value.hashKey);
  67.         }
  68.     }
  69.     
  70.     list.sort(); // sort in order of creation
  71.  
  72.     return list;
  73. }
  74.  
  75. !!/Script
  76.