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/* 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/. */
"use strict";
const {Cc, Ci} = require("chrome");
const protocol = require("devtools/shared/protocol");
const {DebuggerServer} = require("devtools/server/main");
const promise = require("promise");
const Services = require("Services");
const { settingsSpec } = require("devtools/shared/specs/settings");
const { FileUtils} = require("resource://gre/modules/FileUtils.jsm");
const { NetUtil} = require("resource://gre/modules/NetUtil.jsm");
var defaultSettings = {};
var settingsFile;
exports.register = function (handle) {
handle.addGlobalActor(SettingsActor, "settingsActor");
};
exports.unregister = function (handle) {
};
function getDefaultSettings() {
let chan = NetUtil.newChannel({
uri: NetUtil.newURI(settingsFile),
loadUsingSystemPrincipal: true});
let stream = chan.open2();
// Obtain a converter to read from a UTF-8 encoded input stream.
let converter = Cc["@mozilla.org/intl/scriptableunicodeconverter"]
.createInstance(Ci.nsIScriptableUnicodeConverter);
converter.charset = "UTF-8";
let rawstr = converter.ConvertToUnicode(NetUtil.readInputStreamToString(
stream,
stream.available()) || "");
try {
defaultSettings = JSON.parse(rawstr);
} catch (e) { }
stream.close();
}
function loadSettingsFile() {
// Loading resource://app/defaults/settings.json doesn't work because
// settings.json is not in the omnijar.
// So we look for the app dir instead and go from here...
if (settingsFile) {
return;
}
settingsFile = FileUtils.getFile("DefRt", ["settings.json"], false);
if (!settingsFile || (settingsFile && !settingsFile.exists())) {
// On b2g desktop builds the settings.json file is moved in the
// profile directory by the build system.
settingsFile = FileUtils.getFile("ProfD", ["settings.json"], false);
if (!settingsFile || (settingsFile && !settingsFile.exists())) {
console.log("settings.json file does not exist");
}
}
if (settingsFile.exists()) {
getDefaultSettings();
}
}
var SettingsActor = exports.SettingsActor = protocol.ActorClassWithSpec(settingsSpec, {
_getSettingsService: function () {
let win = Services.wm.getMostRecentWindow(DebuggerServer.chromeWindowType);
return win.navigator.mozSettings;
},
getSetting: function (name) {
let deferred = promise.defer();
let lock = this._getSettingsService().createLock();
let req = lock.get(name);
req.onsuccess = function () {
deferred.resolve(req.result[name]);
};
req.onerror = function () {
deferred.reject(req.error);
};
return deferred.promise;
},
setSetting: function (name, value) {
let deferred = promise.defer();
let data = {};
data[name] = value;
let lock = this._getSettingsService().createLock();
let req = lock.set(data);
req.onsuccess = function () {
deferred.resolve(true);
};
req.onerror = function () {
deferred.reject(req.error);
};
return deferred.promise;
},
_hasUserSetting: function (name, value) {
if (typeof value === "object") {
return JSON.stringify(defaultSettings[name]) !== JSON.stringify(value);
}
return (defaultSettings[name] !== value);
},
getAllSettings: function () {
loadSettingsFile();
let settings = {};
let self = this;
let deferred = promise.defer();
let lock = this._getSettingsService().createLock();
let req = lock.get("*");
req.onsuccess = function () {
for (var name in req.result) {
settings[name] = {
value: req.result[name],
hasUserValue: self._hasUserSetting(name, req.result[name])
};
}
deferred.resolve(settings);
};
req.onfailure = function () {
deferred.reject(req.error);
};
return deferred.promise;
},
clearUserSetting: function (name) {
loadSettingsFile();
try {
this.setSetting(name, defaultSettings[name]);
} catch (e) {
console.log(e);
}
}
});
// For tests
exports._setDefaultSettings = function (settings) {
defaultSettings = settings || {};
};
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