1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
|
/* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/.
* PMkit shim for 'sdk/ui/button', (c) JustOff, 2017 */
"use strict";
module.metadata = {
"stability": "experimental",
"engines": {
"Palemoon": "> 27"
}
};
const { Ci, Cc } = require('chrome');
const prefs = require('../preferences/service');
const buttonsList = new Map();
const LOCATION_PREF_ROOT = "extensions.sdk-button-location.";
let gWindowListener;
function getLocation(id) {
let toolbarId = "nav-bar", nextItemId = "";
let location = prefs.get(LOCATION_PREF_ROOT + id);
if (location && location.indexOf(",") !== -1) {
[toolbarId, nextItemId] = location.split(",");
}
return [toolbarId, nextItemId];
}
function saveLocation(id, toolbarId, nextItemId) {
let _toolbarId = toolbarId || "";
let _nextItemId = nextItemId || "";
prefs.set(LOCATION_PREF_ROOT + id, [_toolbarId, _nextItemId].join(","));
}
// Insert button into window
function insertButton(aWindow, id, onBuild) {
// Build button and save reference to it
let doc = aWindow.document;
let b = onBuild(doc, id);
aWindow[id] = b;
// Add to the customization palette
let toolbox = doc.getElementById("navigator-toolbox");
toolbox.palette.appendChild(b);
// Retrieve button location from preferences
let [toolbarId, nextItemId] = getLocation(id);
let toolbar = toolbarId != "" && doc.getElementById(toolbarId);
if (toolbar) {
let nextItem = nextItemId != "" && doc.getElementById(nextItemId);
// If nextItem not in toolbar then retrieve it by reading currentset attribute
if (!(nextItem && nextItem.parentNode && nextItem.parentNode.id == toolbarId)) {
nextItem = null;
let currentSet = toolbar.getAttribute("currentset");
let ids = (currentSet == "__empty") ? [] : currentSet.split(",");
let idx = ids.indexOf(id);
if (idx != -1) {
for (let i = idx; i < ids.length; i++) {
nextItem = doc.getElementById(ids[i]);
if (nextItem)
break;
}
}
}
// Finally insert button in the right toolbar and in the right position
toolbar.insertItem(id, nextItem, null, false);
}
}
// Remove button from window
function removeButton(aWindow, id) {
let b = aWindow[id];
b.parentNode.removeChild(b);
delete aWindow[id];
}
// Save locations of buttons after customization
function afterCustomize(e) {
for (let [id] of buttonsList) {
let toolbox = e.target;
let b = toolbox.parentNode.querySelector("#" + id);
let toolbarId = null, nextItemId = null;
if (b) {
let parent = b.parentNode;
let nextItem = b.nextSibling;
if (parent && parent.localName == "toolbar") {
toolbarId = parent.id;
nextItemId = nextItem && nextItem.id;
}
}
saveLocation(id, toolbarId, nextItemId);
}
}
// Global window observer
function browserWindowObserver(handlers) {
this.handlers = handlers;
}
browserWindowObserver.prototype = {
observe: function(aSubject, aTopic, aData) {
if (aTopic == "domwindowopened") {
aSubject.QueryInterface(Ci.nsIDOMWindow).addEventListener("load", this, false);
} else if (aTopic == "domwindowclosed") {
if (aSubject.document.documentElement.getAttribute("windowtype") == "navigator:browser") {
this.handlers.onShutdown(aSubject);
}
}
},
handleEvent: function(aEvent) {
let aWindow = aEvent.currentTarget;
aWindow.removeEventListener(aEvent.type, this, false);
if (aWindow.document.documentElement.getAttribute("windowtype") == "navigator:browser") {
this.handlers.onStartup(aWindow);
}
}
};
// Run on every window startup
function browserWindowStartup(aWindow) {
for (let [id, onBuild] of buttonsList) {
insertButton(aWindow, id, onBuild);
}
aWindow.addEventListener("aftercustomization", afterCustomize, false);
};
// Run on every window shutdown
function browserWindowShutdown(aWindow) {
for (let [id, onBuild] of buttonsList) {
removeButton(aWindow, id);
}
aWindow.removeEventListener("aftercustomization", afterCustomize, false);
}
// Main object
const buttons = {
createButton: function(aProperties) {
// If no buttons were inserted yet, setup global window observer
if (buttonsList.size == 0) {
let ww = Cc["@mozilla.org/embedcomp/window-watcher;1"].getService(Ci.nsIWindowWatcher);
gWindowListener = new browserWindowObserver({
onStartup: browserWindowStartup,
onShutdown: browserWindowShutdown
});
ww.registerNotification(gWindowListener);
}
// Add button to list
buttonsList.set(aProperties.id, aProperties.onBuild);
// Inster button to all open windows
let wm = Cc["@mozilla.org/appshell/window-mediator;1"].getService(Ci.nsIWindowMediator);
let winenu = wm.getEnumerator("navigator:browser");
while (winenu.hasMoreElements()) {
let win = winenu.getNext();
insertButton(win, aProperties.id, aProperties.onBuild);
// When first button inserted, add afterCustomize listener
if (buttonsList.size == 1) {
win.addEventListener("aftercustomization", afterCustomize, false);
}
}
},
destroyButton: function(id) {
// Remove button from list
buttonsList.delete(id);
// If no more buttons exist, remove global window observer
if (buttonsList.size == 0) {
let ww = Cc["@mozilla.org/embedcomp/window-watcher;1"].getService(Ci.nsIWindowWatcher);
ww.unregisterNotification(gWindowListener);
gWindowListener = null;
}
// Remove button from all open windows
let wm = Cc["@mozilla.org/appshell/window-mediator;1"].getService(Ci.nsIWindowMediator);
let winenu = wm.getEnumerator("navigator:browser");
while (winenu.hasMoreElements()) {
let win = winenu.getNext();
removeButton(win, id);
// If no more buttons exist, remove afterCustomize listener
if (buttonsList.size == 0) {
win.removeEventListener("aftercustomization", afterCustomize, false);
}
}
},
getNode: function(id, window) {
return window[id];
}
};
exports.buttons = buttons;
|
