modules/caret.js

   1 /**
   2  * (C) Copyright 2007-2008 Jeremy Maitin-Shepard
   3  * (C) Copyright 2008-2009 John J. Foerch
   4  *
   5  * Use, modification, and distribution are subject to the terms specified in the
   6  * COPYING file.
   7 **/
   8
   9 function caret_modality (buffer, elem) {
  10     return caret_keymap;
  11 }
  12
  13 define_buffer_mode('caret_mode',
  14     $display_name = 'CARET',
  15     $enable = function (buffer) {
  16         buffer.browser.setAttribute('showcaret', 'true');
  17         var sc = getFocusedSelCtrl(buffer);
  18         sc.setCaretEnabled(true);
  19         buffer.top_frame.focus();
  20         buffer.modalities.push(caret_modality);
  21         buffer.set_input_mode();
  22     },
  23     $disable = function (buffer) {
  24         buffer.browser.setAttribute('showcaret', 'false');
  25         var sc = getFocusedSelCtrl(buffer);
  26         sc.setCaretEnabled(false);
  27         buffer.browser.focus();
  28         var i = buffer.modalities.indexOf(caret_modality);
  29         if (i > -1)
  30             buffer.modalities.splice(i, 1);
  31         buffer.set_input_mode();
  32     });
  33
  34 function caret_mode_enable (buffer) {
  35     caret_mode(buffer, true);
  36 }
  37
  38 watch_pref('accessibility.browsewithcaret',
  39            function caret_toggle_all_buffers () {
  40                if (get_pref('accessibility.browsewithcaret')) {
  41                    for_each_buffer(function (buffer) {
  42                        caret_mode(buffer, true);
  43                    });
  44                    add_hook('create_buffer_hook', caret_mode_enable);
  45                } else {
  46                    for_each_buffer(function (buffer) {
  47                        caret_mode(buffer, false);
  48                    });
  49                    remove_hook('create_buffer_hook', caret_mode_enable);
  50                }
  51            });