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[conkeror.git] / modules / tab-bar.js
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1 /**
2  * (C) Copyright 2008 Jeremy Maitin-Shepard
3  *
4  * Use, modification, and distribution are subject to the terms specified in the
5  * COPYING file.
6 **/
8 in_module(null);
10 require("favicon.js");
11 require("mode.js");
13 function tab_bar (window) {
14     window.tab_bar = this;
15     var element = create_XUL(window, "arrowscrollbox");
16     element.setAttribute("id", "tab-bar");
17     element.setAttribute("orient", "horizontal");
18     var after = window.buffers.container;
19     this.window = window;
20     this.element = element;
21     after.parentNode.insertBefore(element, after);
23     add_hook.call(window, "select_buffer_hook", tab_bar_select_buffer);
24     add_hook.call(window, "create_buffer_early_hook", tab_bar_add_buffer);
25     add_hook.call(window, "kill_buffer_hook", tab_bar_kill_buffer);
26     add_hook.call(window, "create_buffer_hook", tab_bar_update_buffer_title);
27     add_hook.call(window, "buffer_title_change_hook", tab_bar_update_buffer_title);
28     add_hook.call(window, "buffer_description_change_hook", tab_bar_update_buffer_title);
29     add_hook.call(window, "buffer_icon_change_hook", tab_bar_update_buffer_icon);
31     window.buffers.for_each(tab_bar_add_buffer);
32     this.update_multiple_attribute();
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, "create_buffer_hook", tab_bar_update_buffer_title);
41     remove_hook.call(this.window, "buffer_title_change_hook", tab_bar_update_buffer_title);
42     remove_hook.call(this.window, "buffer_description_change_hook", tab_bar_update_buffer_title);
43     remove_hook.call(this.window, "buffer_icon_change_hook", tab_bar_update_buffer_icon);
44     this.window.buffers.for_each(function (b) { delete b.tab; });
45     this.selected_buffer = null;
46     this.element.parentNode.removeChild(this.element);
47     delete this.window.tab_bar;
49 tab_bar.prototype.update_multiple_attribute = function () {
50     if (this.window.buffers.count > 1)
51         this.element.setAttribute("multiple", "true");
52     else
53         this.element.setAttribute("multiple", "false");
56 function tab_bar_add_buffer (b) {
57     var t = b.window.tab_bar;
58     t.update_multiple_attribute();
59     var tab = create_XUL(b.window, "hbox");
60     tab.setAttribute("class", "tab");
61     tab.addEventListener("click", function () {
62             if (!b.dead)
63                 b.window.buffers.current = b;
64         }, false /* not capturing */);
65     tab.setAttribute("selected", "false");
66     var image = create_XUL(b.window, "image");
67     image.setAttribute("class", "tab-icon");
68     if (b.icon != null)
69         image.setAttribute("src", b.icon);
70     var label = create_XUL(b.window, "label");
71     label.setAttribute("class", "tab-label");
72     label.setAttribute("crop", "end");
73     var button = create_XUL(b.window, "toolbarbutton");
74     button.setAttribute("class", "tab-close-button");
75     button.addEventListener("click", function (event) {
76             kill_buffer(b);
77             event.stopPropagation();
78         }, false /* not capturing */);
79     tab.appendChild(image);
80     tab.appendChild(label);
81     tab.appendChild(button);
82     tab.tab_label = label;
83     tab.tab_image = image;
84     t.element.appendChild(tab);
85     b.tab = tab;
86     tab_bar_update_buffer_title(b);
89 function tab_bar_kill_buffer (b) {
90     var t = b.window.tab_bar;
91     t.update_multiple_attribute();
92     if (t.selected_buffer == b)
93         t.selected_buffer = null;
94     b.tab.parentNode.removeChild(b.tab);
95     delete b.tab;
98 function tab_bar_select_buffer (b) {
99     var t = b.window.tab_bar;
100     if (t.selected_buffer != null)
101         t.selected_buffer.tab.setAttribute("selected", "false");
102     t.selected_buffer = b;
103     b.tab.setAttribute("selected", "true");
104     t.element.ensureElementIsVisible(b.tab);
107 function tab_bar_update_buffer_title (b) {
108     var title = b.title;
109     if (title == null || title.length == 0)
110         title = b.description;
111     b.tab.tab_label.setAttribute("value", title);
114 function tab_bar_update_buffer_icon (b) {
115     if (b.icon != null)
116         b.tab.tab_image.setAttribute("src", b.icon);
117     else
118         b.tab.tab_image.removeAttribute("src");
121 function tab_bar_install (window) {
122     if (window.tab_bar)
123         throw new Error("tab bar already initialized for window");
124     new tab_bar(window);
127 function tab_bar_uninstall (window) {
128     if (!window.tab_bar)
129         throw new Error("tab bar not initialized for window");
130     window.tab_bar.destroy();
133 define_global_mode("tab_bar_mode",
134                    function () { // enable
135                        add_hook("window_initialize_hook", tab_bar_install);
136                        for_each_window(tab_bar_install);
137                    },
138                    function () { // disable
139                        remove_hook("window_initialize_hook", tab_bar_install);
140                        for_each_window(tab_bar_uninstall);
141                    });
143 tab_bar_mode(true);
145 provide("new-tabs");
146 provide("tab-bar");