-
Notifications
You must be signed in to change notification settings - Fork 2
/
bootstrap.js
219 lines (195 loc) · 7.27 KB
/
bootstrap.js
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
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
/* 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/. */
/*global Components, Services, ctypes, XPCOMUtils, CustomizableUI */
const {classes: Cc, interfaces: Ci, utils: Cu} = Components;
Cu.import("resource://gre/modules/Services.jsm");
/**
* Apply a callback to each open and new browser windows.
*
* @usage watchWindows(callback): Apply a callback to each browser window.
* @param [function] callback: 1-parameter function that gets a browser window.
* @param [string] option: If set to "enumerate-only", don't add a listener
* for future window-opens.
*/
function watchWindows(callback, option) {
function watcher(window) {
// Now that the window has loaded, only handle browser windows
let {documentElement} = window.document;
if (documentElement.getAttribute("windowtype") == "navigator:browser")
callback(window);
}
// Wait for the window to finish loading before running the callback
function runOnLoad(window) {
// Listen for one load event before checking the window type
window.addEventListener("load", function runOnce() {
window.removeEventListener("load", runOnce, false);
watcher(window);
}, false);
}
// Add functionality to existing windows
let windows = Services.wm.getEnumerator(null);
while (windows.hasMoreElements()) {
// Only run the watcher immediately if the window is completely loaded
let window = windows.getNext();
if (window.document.readyState == "complete")
watcher(window);
// Wait for the window to load before continuing
else
runOnLoad(window);
}
// Watch for new browser windows opening then wait for it to load
function windowWatcher(subject, topic) {
if (topic == "domwindowopened")
runOnLoad(subject);
}
if (option != "just-enumerate") {
Services.ww.registerNotification(windowWatcher);
// Make sure to stop watching for windows if we're unloading
unload(function() Services.ww.unregisterNotification(windowWatcher));
}
}
/**
* Save callbacks to run when unloading. Optionally scope the callback to a
* container, e.g., window. Provide a way to run all the callbacks.
*
* @usage unload(): Run all callbacks and release them.
*
* @usage unload(callback): Add a callback to run on unload.
* @param [function] callback: 0-parameter function to call on unload.
* @return [function]: A 0-parameter function that undoes adding the callback.
*
* @usage unload(callback, container) Add a scoped callback to run on unload.
* @param [function] callback: 0-parameter function to call on unload.
* @param [node] container: Remove the callback when this container unloads.
* @return [function]: A 0-parameter function that undoes adding the callback.
*/
function unload(callback, container) {
// Initialize the array of unloaders on the first usage
let unloaders = unload.unloaders;
if (unloaders == null)
unloaders = unload.unloaders = [];
// Calling with no arguments runs all the unloader callbacks
if (callback == null) {
unloaders.slice().forEach(function(unloader) unloader());
unloaders.length = 0;
return;
}
function removeUnloader() {
let index = unloaders.indexOf(unloader);
if (index != -1)
unloaders.splice(index, 1);
}
// The callback is bound to the lifetime of the container if we have one
if (container != null) {
// Remove the unloader when the container unloads
container.addEventListener("unload", removeUnloader, false);
// Wrap the callback to additionally remove the unload listener
let origCallback = callback;
callback = function() {
container.removeEventListener("unload", removeUnloader, false);
origCallback();
};
}
// Wrap the callback in a function that ignores failures
function unloader() {
try {
callback();
}
catch(ex) {}
}
unloaders.push(unloader);
}
function crash() {
Components.utils.import("resource://gre/modules/ctypes.jsm");
// ctypes checks for NULL pointer derefs, so just go near-NULL.
var zero = new ctypes.intptr_t(8);
var badptr = ctypes.cast(zero, ctypes.PointerType(ctypes.int32_t));
var crash = badptr.contents;
}
function crash_content() {
let wm = Cc["@mozilla.org/appshell/window-mediator;1"].
getService(Ci.nsIWindowMediator);
let win = wm.getMostRecentWindow("navigator:browser");
let browser = win.gBrowser.selectedBrowser;
if (browser.isRemoteBrowser) {
browser.messageManager.loadFrameScript("resource://crashmesimple/contentscript.js", true);
} else {
// Could try harder and force-load an e10s window or something.
}
}
let menuIDs = new WeakMap();
let metroSettingsPanelEntryId;
function addUI(window) {
let document = window.document;
if (Services.appinfo.ID == "{aa3c5121-dab2-40e2-81ca-7ea25febc110}") {
// Android Fennec
menuIDs.set(window,
window.NativeWindow.menu.add("Crash me!", null, function() {
crash();
}));
}
}
function removeUI(window) {
if (Services.appinfo.ID == "{aa3c5121-dab2-40e2-81ca-7ea25febc110}") {
if (menuIDs.has(window)) {
window.NativeWindow.menu.remove(menuIDs.get(window));
menuIDs.delete(window);
}
}
}
var ss = null;
var cssuri = null;
function install(data, reason) {}
function uninstall(data, reason) {}
function startup(data, reason) {
let resource = Services.io.getProtocolHandler("resource").QueryInterface(Ci.nsIResProtocolHandler);
resource.setSubstitution("crashmesimple", data.resourceURI);
watchWindows(addUI);
if (Services.appinfo.ID == "{ec8030f7-c20a-464f-9b0e-13a3a9e97384}") {
let io =
Cc["@mozilla.org/network/io-service;1"].
getService(Ci.nsIIOService);
// the 'style' directive isn't supported in chrome.manifest for boostrapped
// extensions, so this is the manual way of doing the same.
ss =
Cc["@mozilla.org/content/style-sheet-service;1"].
getService(Ci.nsIStyleSheetService);
cssuri = io.newURI("chrome://crashmesimple/skin/toolbar.css", null, null);
ss.loadAndRegisterSheet(cssuri, ss.USER_SHEET);
// Add a toolbar button
Components.utils.import("resource:///modules/CustomizableUI.jsm");
CustomizableUI.createWidget({
id: "toolbarbutton-crashmesimple",
removable: true,
label: "Crash me!",
tooltiptext: "Crash your browser",
onCommand: function() {
crash();
}
});
CustomizableUI.createWidget({
id: "toolbarbutton-crashmesimple-content",
removable: true,
label: "Crash content process!",
tooltiptext: "Crash the content process",
onCommand: function() {
crash_content();
}
});
}
}
function shutdown(data, reason) {
watchWindows(removeUI, "enumerate-only");
let resource = Services.io.getProtocolHandler("resource").QueryInterface(Ci.nsIResProtocolHandler);
resource.setSubstitution("crashmesimple", null);
if (Services.appinfo.ID == "{ec8030f7-c20a-464f-9b0e-13a3a9e97384}") {
CustomizableUI.destroyWidget("toolbarbutton-crashmesimple");
CustomizableUI.destroyWidget("toolbarbutton-crashmesimple-content");
}
if (ss && cssuri) {
if (ss.sheetRegistered(cssuri, ss.USER_SHEET)) {
ss.unregisterSheet(cssuri, ss.USER_SHEET);
}
}
}