xul-ext-adblock-plus-element-hiding-helper 1.2.2-1 / usr / share / xul-ext / adblock-plus-element-hiding-helper / windowWrapper.js

/*
 * This Source Code is subject to the terms of the Mozilla Public License
 * version 2.0 (the "License"). You can obtain a copy of the License at
 * http://mozilla.org/MPL/2.0/.
 */

let {Aardvark} = require("aardvark");
let {Prefs} = require("prefs");
let {KeySelector} = require("keySelector");

let key = undefined;

function getMenuItem()
{
	// Randomize URI to work around bug 719376
	let stringBundle = Services.strings.createBundle("chrome://elemhidehelper/locale/global.properties?" + Math.random());
	let result = [stringBundle.GetStringFromName("selectelement.label"), stringBundle.GetStringFromName("stopselection.label")];

	getMenuItem = function() result;
	return getMenuItem();
}

exports.WindowWrapper = WindowWrapper;
function WindowWrapper(wnd, elementMarkerClass)
{
	this.window = wnd;

	this.popupShowingHandler = this.popupShowingHandler.bind(this);
	this.popupHiddenHandler = this.popupHiddenHandler.bind(this);
	this.keyPressHandler = this.keyPressHandler.bind(this);
	this.toggleSelection = this.toggleSelection.bind(this);
	this.hideTooltips = this.hideTooltips.bind(this);

	this.E("ehh-elementmarker").firstElementChild.setAttribute("class", elementMarkerClass);

	this.init();
}
WindowWrapper.prototype =
{
	window: null,

	get browser()
	{
		if ("gBrowser" in this.window)
			return this.window.gBrowser;            // Firefox / SeaMonkey browser
		else if (typeof this.window.getBrowser == "function")
			return this.window.getBrowser();        // Thunderbird
		else if (typeof this.window.getMessageBrowser == "function")
			return this.window.getMessageBrowser(); // SeaMonkey mail

		throw new Error("Failed to find browser element in this application");
	},

	init: function()
	{
		this.window.addEventListener("popupshowing", this.popupShowingHandler, false);
		this.window.addEventListener("popuphidden", this.popupHiddenHandler, false);
		this.window.addEventListener("keypress", this.keyPressHandler, false);
		this.window.addEventListener("blur", this.hideTooltips, true);
	},

	shutdown: function()
	{
		this.window.removeEventListener("popupshowing", this.popupShowingHandler, false);
		this.window.removeEventListener("popuphidden", this.popupHiddenHandler, false);
		this.window.removeEventListener("keypress", this.keyPressHandler, false);
		this.window.removeEventListener("blur", this.hideTooltips, true);
	},

	E: function(id)
	{
		let doc = this.window.document;
		this.E = function(id) doc.getElementById(id);
		return this.E(id);
	},

	key: undefined,

	popupShowingHandler: function(event)
	{
		let popup = event.target;
		if (!/^(abp-(?:toolbar|status|menuitem)-)popup$/.test(popup.id))
			return;

		this.popupHiddenHandler(event);

		let enabled = Aardvark.canSelect(this.browser);
		let running = (enabled && this.browser == Aardvark.browser);

		let [labelStart, labelStop] = getMenuItem();
		let item = popup.ownerDocument.createElement("menuitem");
		item.setAttribute("label", running ? labelStop : labelStart);
		item.setAttribute("class", "elemhidehelper-item");
		if (!enabled)
			item.setAttribute("disabled", "true");

		if (typeof key == "undefined")
			this.configureKey(event.currentTarget);
		item.setAttribute("acceltext", KeySelector.getTextForKey(key));

		item.addEventListener("command", this.toggleSelection, false);

		let insertBefore = null;
		for (let child = popup.firstChild; child; child = child.nextSibling)
			if (/-options$/.test(child.id))
				insertBefore = child;
		popup.insertBefore(item, insertBefore);
	},

	popupHiddenHandler: function(event)
	{
		let popup = event.target;
		if (!/^(abp-(?:toolbar|status|menuitem)-)popup$/.test(popup.id))
			return;

		let items = popup.getElementsByClassName("elemhidehelper-item");
		while (items.length)
			items[0].parentNode.removeChild(items[0]);
	},

	keyPressHandler: function(event)
	{
		if (typeof key == "undefined")
			this.configureKey(event.currentTarget);

		if (KeySelector.matchesKey(event, key))
		{
			event.preventDefault();
			this.toggleSelection();
		}
	},

	configureKey: function(window)
	{
		key = new KeySelector(window).selectKey(Prefs.selectelement_key);
	},

	hideTooltips: function()
	{
		if (Aardvark.window == this.window)
			Aardvark.hideTooltips();
	},

	toggleSelection: function()
	{
		if ("@adblockplus.org/abp/public;1" in Cc && this.browser != Aardvark.browser)
			Aardvark.start(this);
		else
			Aardvark.quit();
	}
};