2 * (C) Copyright 2008 Jeremy Maitin-Shepard
4 * Use, modification, and distribution are subject to the terms specified in the
11 function tab_bar (window) {
12 window.tab_bar = this;
13 var element = create_XUL(window, "arrowscrollbox");
14 element.setAttribute("id", "tab-bar");
15 element.setAttribute("orient", "horizontal");
16 var after = window.buffers.container;
18 this.element = element;
19 after.parentNode.insertBefore(element, after);
21 add_hook.call(window, "select_buffer_hook", tab_bar_select_buffer);
22 add_hook.call(window, "create_buffer_early_hook", tab_bar_add_buffer);
23 add_hook.call(window, "kill_buffer_hook", tab_bar_kill_buffer);
24 add_hook.call(window, "move_buffer_hook", tab_bar_move_buffer);
25 add_hook.call(window, "create_buffer_hook", tab_bar_update_buffer_title);
26 add_hook.call(window, "buffer_title_change_hook", tab_bar_update_buffer_title);
27 add_hook.call(window, "buffer_description_change_hook", tab_bar_update_buffer_title);
28 add_hook.call(window, "buffer_icon_change_hook", tab_bar_update_buffer_icon);
30 window.buffers.for_each(function (b) tab_bar_add_buffer(b, true));
31 this.update_multiple_attribute();
32 this.update_ordinals();
33 if (window.buffers.current != null)
34 tab_bar_select_buffer(window.buffers.current);
36 tab_bar.prototype.destroy = function () {
37 remove_hook.call(this.window, "select_buffer_hook", tab_bar_select_buffer);
38 remove_hook.call(this.window, "create_buffer_early_hook", tab_bar_add_buffer);
39 remove_hook.call(this.window, "kill_buffer_hook", tab_bar_kill_buffer);
40 remove_hook.call(this.window, "move_buffer_hook", tab_bar_move_buffer);
41 remove_hook.call(this.window, "create_buffer_hook", tab_bar_update_buffer_title);
42 remove_hook.call(this.window, "buffer_title_change_hook", tab_bar_update_buffer_title);
43 remove_hook.call(this.window, "buffer_description_change_hook", tab_bar_update_buffer_title);
44 remove_hook.call(this.window, "buffer_icon_change_hook", tab_bar_update_buffer_icon);
45 this.window.buffers.for_each(function (b) { delete b.tab; });
46 this.selected_buffer = null;
47 this.element.parentNode.removeChild(this.element);
48 delete this.window.tab_bar;
53 * Updates the "ordinal" attribute of all tabs.
55 tab_bar.prototype.update_ordinals = function () {
56 var buffers = this.window.buffers;
57 for (var i = 0, n = this.element.childNodes.length; i < n; i++) {
58 var ordinal = buffers.index_of(this.element.childNodes[i].buffer) + 1;
59 this.element.childNodes[i].setAttribute("ordinal", ordinal);
63 tab_bar.prototype.update_multiple_attribute = function () {
64 if (this.window.buffers.count > 1)
65 this.element.setAttribute("multiple", "true");
67 this.element.setAttribute("multiple", "false");
71 * Adds a tab for the given buffer. When second argument 'noupdate' is
72 * true, a new tab in the middle of the buffer list will not cause the
73 * ordinals of other tabs to be updated. This is used during
74 * initialization of the tab bar.
76 function tab_bar_add_buffer (b, noupdate) {
77 var t = b.window.tab_bar;
78 t.update_multiple_attribute();
79 var ordinal = b.window.buffers.index_of(b) + 1;
80 if (ordinal < b.window.buffers.buffer_list.length && ! noupdate)
82 var tab = create_XUL(b.window, "hbox");
84 tab.setAttribute("class", "tab");
85 tab.addEventListener("click", function () {
87 tab.buffer.window.buffers.current = tab.buffer;
88 }, false /* not capturing */);
89 tab.setAttribute("selected", "false");
90 var image = create_XUL(b.window, "image");
91 image.setAttribute("class", "tab-icon");
93 image.setAttribute("src", b.icon);
94 var label = create_XUL(b.window, "label");
95 label.setAttribute("class", "tab-label");
96 label.setAttribute("crop", "end");
97 var button = create_XUL(b.window, "toolbarbutton");
98 button.setAttribute("class", "tab-close-button");
99 button.addEventListener("click", function (event) {
100 kill_buffer(tab.buffer);
101 event.stopPropagation();
102 }, false /* not capturing */);
103 tab.appendChild(image);
104 tab.appendChild(label);
105 tab.appendChild(button);
106 tab.tab_label = label;
107 tab.tab_image = image;
108 t.element.appendChild(tab);
110 tab_bar_update_buffer_title(b);
112 // Note, XULRunner 1.9.x puts the tab in the wrong location if we set
113 // the ordinal before adding the tab to the tab-bar.
114 tab.setAttribute("ordinal", ordinal);
117 function tab_bar_kill_buffer (b) {
118 var t = b.window.tab_bar;
119 t.update_multiple_attribute();
120 if (t.selected_buffer == b)
121 t.selected_buffer = null;
122 b.tab.parentNode.removeChild(b.tab);
129 * Updates all tab indices and ensure that the current tab is still visible.
131 function tab_bar_move_buffer (b) {
132 var t = b.window.tab_bar;
134 t.element.ensureElementIsVisible(b.window.buffers.current.tab);
138 function tab_bar_select_buffer (b) {
139 var t = b.window.tab_bar;
140 if (t.selected_buffer != null)
141 t.selected_buffer.tab.setAttribute("selected", "false");
142 t.selected_buffer = b;
143 b.tab.setAttribute("selected", "true");
144 t.element.ensureElementIsVisible(b.tab);
147 function tab_bar_update_buffer_title (b) {
149 if (title == null || title.length == 0)
150 title = b.description;
151 b.tab.tab_label.setAttribute("value", title);
154 function tab_bar_update_buffer_icon (b) {
156 b.tab.tab_image.setAttribute("src", b.icon);
158 b.tab.tab_image.removeAttribute("src");
161 function tab_bar_install (window) {
163 throw new Error("tab bar already initialized for window");
167 function tab_bar_uninstall (window) {
169 throw new Error("tab bar not initialized for window");
170 window.tab_bar.destroy();
173 define_global_mode("tab_bar_mode",
174 function () { // enable
175 add_hook("window_initialize_hook", tab_bar_install);
176 for_each_window(tab_bar_install);
178 function () { // disable
179 remove_hook("window_initialize_hook", tab_bar_install);
180 for_each_window(tab_bar_uninstall);