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 in_module(null);
  10
  11 function caret_modality (buffer, elem) {
  12     buffer.keymaps.push(caret_keymap);
  13 }
  14
  15 define_buffer_mode('caret_mode',
  16     $display_name = 'CARET',
  17     $enable = function (buffer) {
  18         buffer.browser.setAttribute('showcaret', 'true');
  19         var sc = buffer.focused_selection_controller;
  20         sc.setCaretEnabled(true);
  21         buffer.top_frame.focus();
  22         buffer.modalities.push(caret_modality);
  23         buffer.set_input_mode();
  24     },
  25     $disable = function (buffer) {
  26         buffer.browser.setAttribute('showcaret', 'false');
  27         var sc = buffer.focused_selection_controller;
  28         sc.setCaretEnabled(false);
  29         buffer.browser.focus();
  30         var i = buffer.modalities.indexOf(caret_modality);
  31         if (i > -1)
  32             buffer.modalities.splice(i, 1);
  33         buffer.set_input_mode();
  34     });
  35
  36 function caret_mode_enable (buffer) {
  37     caret_mode(buffer, true);
  38 }
  39
  40 watch_pref('accessibility.browsewithcaret',
  41            function caret_toggle_all_buffers () {
  42                if (get_pref('accessibility.browsewithcaret')) {
  43                    for_each_buffer(function (buffer) {
  44                        caret_mode(buffer, true);
  45                    });
  46                    add_hook('create_buffer_hook', caret_mode_enable);
  47                } else {
  48                    for_each_buffer(function (buffer) {
  49                        caret_mode(buffer, false);
  50                    });
  51                    remove_hook('create_buffer_hook', caret_mode_enable);
  52                }
  53            });
  54
  55 provide("caret");