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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/. */
var EXPORTED_SYMBOLS = ["LightweightThemeConsumer"];
var Cc = Components.classes;
var Ci = Components.interfaces;
Components.utils.import("resource://gre/modules/Services.jsm");
Components.utils.import("resource://gre/modules/LightweightThemeManager.jsm");
function LightweightThemeConsumer(aDocument) {
this._doc = aDocument;
Services.obs.addObserver(this, "lightweight-theme-styling-update", false);
Services.obs.addObserver(this, "lightweight-theme-apply", false);
this._update(LightweightThemeManager.currentThemeForDisplay);
}
LightweightThemeConsumer.prototype = {
observe: function (aSubject, aTopic, aData) {
if (aTopic == "lightweight-theme-styling-update")
this._update(JSON.parse(aData));
else if (aTopic == "lightweight-theme-apply")
this._update(LightweightThemeManager.currentThemeForDisplay);
},
destroy: function () {
Services.obs.removeObserver(this, "lightweight-theme-styling-update");
Services.obs.removeObserver(this, "lightweight-theme-apply");
this._doc = null;
},
_update: function (aData) {
if (!aData)
aData = { headerURL: "", footerURL: "", textcolor: "", accentcolor: "" };
let active = !!aData.headerURL;
let msg = active ? { type: "LightweightTheme:Update", data: aData } :
{ type: "LightweightTheme:Disable" };
Services.androidBridge.handleGeckoMessage(msg);
}
}
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