forked from mirrors/gecko-dev
73 lines
2.2 KiB
JavaScript
73 lines
2.2 KiB
JavaScript
/* 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/. */
|
|
|
|
Components.utils.import("resource://gre/modules/XPCOMUtils.jsm");
|
|
Components.utils.import("resource://gre/modules/Services.jsm");
|
|
|
|
const PREF_BRANCH = "extensions.webcompat.";
|
|
const PREF_DEFAULTS = {perform_ua_overrides: true};
|
|
|
|
const UA_ENABLE_PREF_NAME = "extensions.webcompat.perform_ua_overrides";
|
|
|
|
XPCOMUtils.defineLazyModuleGetter(this, "UAOverrider", "chrome://webcompat/content/lib/ua_overrider.jsm");
|
|
XPCOMUtils.defineLazyModuleGetter(this, "UAOverrides", "chrome://webcompat/content/data/ua_overrides.jsm");
|
|
|
|
let overrider;
|
|
|
|
function UAEnablePrefObserver() {
|
|
let isEnabled = Services.prefs.getBoolPref(UA_ENABLE_PREF_NAME);
|
|
if (isEnabled && !overrider) {
|
|
overrider = new UAOverrider(UAOverrides);
|
|
overrider.init();
|
|
} else if (!isEnabled && overrider) {
|
|
overrider.uninit();
|
|
overrider = null;
|
|
}
|
|
}
|
|
|
|
function setDefaultPrefs() {
|
|
const branch = Services.prefs.getDefaultBranch(PREF_BRANCH);
|
|
for (const [key, val] of Object.entries(PREF_DEFAULTS)) {
|
|
// If someone beat us to setting a default, don't overwrite it.
|
|
if (branch.getPrefType(key) !== branch.PREF_INVALID) {
|
|
continue;
|
|
}
|
|
|
|
switch (typeof val) {
|
|
case "boolean":
|
|
branch.setBoolPref(key, val);
|
|
break;
|
|
case "number":
|
|
branch.setIntPref(key, val);
|
|
break;
|
|
case "string":
|
|
branch.setCharPref(key, val);
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
|
|
this.install = function() {};
|
|
this.uninstall = function() {};
|
|
|
|
this.startup = function({webExtension}) {
|
|
setDefaultPrefs();
|
|
|
|
// Intentionally reset the preference on every browser restart to avoid site
|
|
// breakage by accidentally toggled preferences or by leaving it off after
|
|
// debugging a site.
|
|
Services.prefs.clearUserPref(UA_ENABLE_PREF_NAME);
|
|
Services.prefs.addObserver(UA_ENABLE_PREF_NAME, UAEnablePrefObserver);
|
|
|
|
overrider = new UAOverrider(UAOverrides);
|
|
overrider.init();
|
|
};
|
|
|
|
this.shutdown = function() {
|
|
Services.prefs.removeObserver(UA_ENABLE_PREF_NAME, UAEnablePrefObserver);
|
|
|
|
if (overrider) {
|
|
overrider.uninit();
|
|
}
|
|
};
|