checkForAddonsUpdates.js

// http://infocatcher.ucoz.net/js/cb/checkForAddonsUpdates.js
// https://forum.mozilla-russia.org/viewtopic.php?id=57958
// https://github.com/Infocatcher/Custom_Buttons/tree/master/Check_for_Addons_Updates

// Check for Addons Updates button for Custom Buttons
// (code for "code" section)

// (c) Infocatcher 2012-2021
// version 0.1.6pre4 - 2021-03-28

// Button just open hidden tab with about:addons and trigger built-in "Check for Updates" function.
// And show tab, if found updates.

(function() {
var btn = this instanceof XULElement
	? this
	: { // Launched not from custom button
		image: "", // Base64-encoded icon (if empty, will be used "imgLoading")
		label: "Check for Addons Updates",
		tooltipText: ""
	};
if("_cb_disabled" in btn)
	return;
btn._cb_disabled = true;

if(!("Services" in window))
	Components.utils.import("resource://gre/modules/Services.jsm");
var app = Services.appinfo.name;
var pv = parseFloat(Services.appinfo.platformVersion);

var ADDONS_URL = "about:addons";

var progressIcon = new ProgressIcon(btn);
var image = btn.image || progressIcon.imgLoading;
var tip = btn.tooltipText;
btn.tooltipText = "Open " + ADDONS_URL + "…";

var tab, browser, gBrowser;
var tbTabInfo, tbTab;

var trgWindow = Services.wm.getMostRecentWindow("navigator:browser")
	|| app == "Thunderbird" && Services.wm.getMostRecentWindow("mail:3pane")
	|| window;
var trgDocument = trgWindow.document;
var tabmail = trgDocument.getElementById("tabmail");

if(tabmail && app == "Thunderbird") { // Note: SeaMonkey doesn't support content tabs in mail window
	let addonsWin;
	let receivePong = function(subject, topic, data) {
		addonsWin = subject;
	};
	Services.obs.addObserver(receivePong, "EM-pong", false);
	Services.obs.notifyObservers(null, "EM-ping", "");
	Services.obs.removeObserver(receivePong, "EM-pong");
	if(addonsWin) {
		let rootWindow = addonsWin
			.QueryInterface(Components.interfaces.nsIInterfaceRequestor)
			.getInterface(Components.interfaces.nsIWebNavigation)
			.QueryInterface(Components.interfaces.nsIDocShellTreeItem)
			.rootTreeItem
			.QueryInterface(Components.interfaces.nsIInterfaceRequestor)
			.getInterface(Components.interfaces.nsIDOMWindow);
		tabmail = rootWindow.document.getElementById("tabmail");
		tbTabInfo = tabmail.getBrowserForDocument(addonsWin);
		tbTab = tab = tbTabInfo.tabNode;
		processAddonsTab(addonsWin);
	}
	else {
		Services.obs.addObserver(function observer(subject, topic, data) {
			Services.obs.removeObserver(observer, topic);
			if(subject.document.readyState == "complete")
				processAddonsTab(subject);
			else {
				subject.addEventListener("load", function onLoad(e) {
					subject.removeEventListener(e.type, onLoad, false);
					processAddonsTab(subject);
				}, false);
			}
		}, "EM-loaded", false);
		// See openAddonsMgr() -> openContentTab()
		tbTabInfo = tabmail.openTab("contentTab", {
			contentPage: ADDONS_URL,
			clickHandler: "specialTabs.siteClickHandler(event, /addons\.mozilla\.org/);",
			background: true
		});
		tbTab = tab = tbTabInfo.tabNode;
		tbTab.collapsed = true;
		// Note: dontSelectHiddenTab() not implemented
	}
}
else if("gBrowser" in trgWindow && trgWindow.gBrowser.tabs) {
	let isPending = false;
	let ws = Services.wm.getEnumerator("navigator:browser");
	windowsLoop:
	while(ws.hasMoreElements()) {
		let w = ws.getNext();
		let tabs = w.gBrowser.tabs;
		for(let i = 0, l = tabs.length; i < l; ++i) {
			let t = tabs[i];
			if(
				!t.closing
				&& t.linkedBrowser
				&& t.linkedBrowser.currentURI.spec == ADDONS_URL
			) {
				tab = t;
				break windowsLoop;
			}
		}
	}

	gBrowser = trgWindow.gBrowser;
	if(!tab) {
		tab = gBrowser.addTab(ADDONS_URL, {
			triggeringPrincipal: "Services" in window // Firefox 63+
				&& Services.scriptSecurityManager
				&& Services.scriptSecurityManager.getSystemPrincipal()
		});
		tab.collapsed = true;
		tab.closing = true; // See "visibleTabs" getter in chrome://browser/content/tabbrowser.xml
		trgWindow.addEventListener("TabSelect", dontSelectHiddenTab, false);
	}
	else if(
		tab.getAttribute("pending") == "true" // Gecko >= 9.0
		|| tab.linkedBrowser.contentDocument.readyState == "uninitialized"
		// || tab.linkedBrowser.__SS_restoreState == 1
	)
		isPending = true;

	browser = tab.linkedBrowser;
	if(
		isPending
		|| browser.webProgress.isLoadingDocument
		|| browser.currentURI.spec == "about:blank" // Firefox 79+
	) {
		browser.addEventListener("load", processAddonsTab, true);
		if(isPending) {
			if(pv >= 41) {
				// Workaround to correctly restore pending tab
				// See https://github.com/Infocatcher/Custom_Buttons/issues/39
				let selTab = gBrowser.selectedTab;
				gBrowser.selectedTab = tab;
				gBrowser.selectedTab = selTab;
			}
			else {
				browser.reload();
			}
		}
	}
	else {
		processAddonsTab();
	}
}
else {
	progressIcon.restore();
	btn.tooltipText = tip;
	delete btn._cb_disabled;
	Services.prompt.alert(window, btn.label, "Error: Can't find supported window!");
	return;
}

function processAddonsTab(e, again) {
	var doc;
	if(e && e instanceof Components.interfaces.nsIDOMWindow) {
		doc = e.document;
	}
	else if(e) {
		doc = e.target;
		if(doc.location != ADDONS_URL)
			return;
		browser.removeEventListener(e.type, processAddonsTab, true);
	}
	else {
		doc = browser.contentDocument;
	}

	btn.tooltipText = "Process " + ADDONS_URL + "…";
	progressIcon.loading();

	var origAttr = "_cb_checkForAddonsUpdates_origImage";
	if(!tab.hasAttribute(origAttr)) {
		var link = doc.querySelector('link[rel="shortcut icon"]'); // Not loaded yet?
		tab.setAttribute(origAttr, link && link.href || tab.image);
	}
	tab.image = image;

	var fu = $("cmd_findAllUpdates");
	if(!fu) { // Firefox 72+
		var win = doc.defaultView;
		var vb = doc.getElementById("html-view-browser");
		if(!vb) {
			if(!HTMLHtmlElement.isInstance(doc.documentElement)) { // Firefox 87+
				win.setTimeout(processAddonsTab, 20, win);
				return;
			}
			vb = browser;
		}
		if(!again) { // Strange errors happens
			// chrome://mozapps/content/extensions/aboutaddons.js
			// getTelemetryViewName() -> el.closest(...) is null
			win.setTimeout(processAddonsTab, 20, win, true);
			return;
		}
		var vbDoc = vb.contentDocument;
		fu = vbDoc.querySelector('[action="check-for-updates"]');
		var um = vbDoc.getElementById("updates-message");
	}

	var notFound = $("updates-noneFound") || {
		get hidden() { return um.getAttribute("state") != "none-found"; }
	};
	var updated = $("updates-installed") || {
		get hidden() { return um.getAttribute("state") != "installed"; }
	};
	// Avoid getting false results from the past update check (may not be required for "noneFound")
	if(um) { // Firefox 72+
		um.hidden = true;
		um.removeAttribute("state");
	}
	else {
		notFound.hidden = updated.hidden = true;
	}

	//fu.doCommand();
	fu.click();

	function localize(node, key, callback) {
		if(um) { // Firefox 72+
			doc.l10n.formatValue(key).then(function(s) {
				callback(s || key);
			}, Components.utils.reportError);
			return;
		}
		callback(node.getAttribute("value") || key);
	}

	var inProgress = $("updates-progress") || {
		get hidden() { return um.getAttribute("state") != "updating"; }
	};
	localize(inProgress, "addon-updates-updating", function(s) {
		btn.tooltipText = s;
	});

	var waitTimer = setInterval(function() {
		if(!doc.defaultView || doc.defaultView.closed) {
			stopWait();
			notify("Tab with add-ons manager was closed!");
			return;
		}
		if(!inProgress.hidden)
			return;
		var autoUpdate = $("utils-autoUpdateDefault")
			|| vbDoc.querySelector('[action="set-update-automatically"]');
		var autoUpdateChecked = autoUpdate.getAttribute("checked") == "true"
			|| autoUpdate.checked;

		var found = $("updates-manualUpdatesFound-btn") || {
			get hidden() { return um.getAttribute("state") != "manual-updates-found"; }
		};
		if(
			autoUpdateChecked
				? notFound.hidden && updated.hidden
				: notFound.hidden && found.hidden
		) // Too early?
			return;

		stopWait();
		if(!tbTab)
			tab.closing = false;
		function removeTab() {
			if(!tab.collapsed)
				return;
			if(tbTab) {
				tabmail.closeTab(tbTabInfo, true /*aNoUndo*/);
				return;
			}
			gBrowser.removeTab(tab);
			(function forgetClosedTab(isSecondTry) {
				var ss = "nsISessionStore" in Components.interfaces
					? (
						Components.classes["@mozilla.org/browser/sessionstore;1"]
						|| Components.classes["@mozilla.org/suite/sessionstore;1"]
					).getService(Components.interfaces.nsISessionStore)
					: trgWindow.SessionStore; // Firefox 61+ https://bugzilla.mozilla.org/show_bug.cgi?id=1450559
				if(!("forgetClosedTab" in ss))
					return;
				var closedTabs = JSON.parse(ss.getClosedTabData(window));
				for(let i = 0, l = closedTabs.length; i < l; ++i) {
					let closedTab = closedTabs[i];
					let state = closedTab.state;
					if(state.entries[state.index - 1].url == ADDONS_URL) {
						ss.forgetClosedTab(window, i);
						return;
					}
				}
				if(!isSecondTry) // May be needed in SeaMonkey
					setTimeout(forgetClosedTab, 0, true);
			})();
		}

		if(!notFound.hidden) {
			removeTab();
			localize(notFound, "addon-updates-none-found", function(s) {
				notify(s);
			});
			return;
		}
		if(autoUpdateChecked) {
			removeTab();
			localize(updated, "addon-updates-installed", function(s) {
				notify(s);
			});
			return;
		}

		tab.collapsed = false;

		var cats = $("categories");
		var upds = $("category-availableUpdates");
		if(cats && upds) {
			if(vb && cats.selectedItem == upds) // Only for Firefox 72+
				cats.selectedItem = $("category-extension"); // Trick to force update
			cats.selectedItem = upds;
		}
		else { // Firefox 76+ ?
			vbDoc.querySelector('.category[name="available-updates"]').click();
		}

		var tabWin = tab.ownerDocument.defaultView;
		if(tbTab)
			tabmail.switchToTab(tbTabInfo);
		else
			tabWin.gBrowser.selectedTab = tab;
		setTimeout(function() {
			tabWin.focus();
			doc.defaultView.focus();
			var al = $("addon-list") || vb;
			al.focus();
		}, 0);
	}, 50);
	function $(id) {
		return doc.getElementById(id);
	}
	function stopWait() {
		clearInterval(waitTimer);
		progressIcon.restore();
		btn.tooltipText = tip;
		if(tab.image == image)
			tab.image = tab.getAttribute(origAttr);
		tab.removeAttribute(origAttr);
		trgWindow.removeEventListener("TabSelect", dontSelectHiddenTab, false);
		setTimeout(function() {
			delete btn._cb_disabled;
		}, 500);
	}
	function notify(msg) {
		Components.classes["@mozilla.org/alerts-service;1"]
			.getService(Components.interfaces.nsIAlertsService)
			.showAlertNotification(
				app == "Firefox" && pv >= 57
					? "chrome://mozapps/skin/extensions/extensionGeneric.svg"
					: "chrome://mozapps/skin/extensions/extensionGeneric.png",
				btn.label,
				msg, false, "", null
			);
	}
}
function dontSelectHiddenTab(e) {
	// <tab /><tab collapsed="true" />
	// Close first tab: collapsed tab becomes selected
	var trgTab = e.originalTarget || e.target;
	if(trgTab != tab)
		return;

	if(/\n(?:BrowserOpenAddonsMgr|toEM)@chrome:\/\//.test(new Error().stack)) {
		// User open Add-ons Manager, show tab
		trgWindow.removeEventListener("TabSelect", dontSelectHiddenTab, false);
		setTimeout(function() { // Hidden tab can't be selected, so select it manually...
			tab.collapsed = tab.closing = false;
			gBrowser.selectedTab = tab;
		}, 0);
	}

	function done(t) {
		if(!t.hidden && !t.closing) {
			e.preventDefault();
			e.stopPropagation();
			return gBrowser.selectedTab = t;
		}
		return false;
	}
	for(var t = tab.nextSibling; t; t = t.nextSibling)
		if(done(t))
			return;
	for(var t = tab.previousSibling; t; t = t.previousSibling)
		if(done(t))
			return;
}
function ProgressIcon(btn) {
	var app = Services.appinfo.name;
	var pv = parseFloat(Services.appinfo.platformVersion);
	if(app == "SeaMonkey")
		this.imgConnecting = this.imgLoading = "chrome://communicator/skin/icons/loading.gif";
	else if(app == "Thunderbird") {
		this.imgConnecting = "chrome://messenger/skin/icons/connecting.png";
		this.imgLoading = "chrome://messenger/skin/icons/loading.png";
	}
	else {
		this.imgConnecting = app == "Firefox" && pv >= 58
			? "chrome://browser/skin/tabbrowser/tab-connecting.png"
			: "chrome://browser/skin/tabbrowser/connecting.png";
		this.imgLoading = app == "Firefox" && pv >= 48
			? "chrome://global/skin/icons/loading.png"
			: "chrome://browser/skin/tabbrowser/loading.png";
	}
	if(!(btn instanceof XULElement)) {
		this.loading = this.restore = function() {};
		return;
	}
	var useAnimation = app == "Firefox" && pv >= 32 && pv < 48;
	var btnIcon = btn.icon
		|| btn.ownerDocument.getAnonymousElementByAttribute(btn, "class", "toolbarbutton-icon");
	var origIcon = btnIcon.src;
	btnIcon.src = this.imgConnecting;
	if(useAnimation) {
		let cs = btnIcon.ownerDocument.defaultView.getComputedStyle(btnIcon, null);
		let s = btnIcon.style;
		s.margin = [cs.marginTop, cs.marginRight, cs.marginBottom, cs.marginLeft].join(" ");
		s.padding = [cs.paddingTop, cs.paddingRight, cs.paddingBottom, cs.paddingLeft].join(" ");
		s.width = cs.width;
		s.height = cs.height;
		s.boxShadow = "none";
		s.borderColor = s.background = "transparent";
		btnIcon.setAttribute("fadein", "true");
		btnIcon.setAttribute("busy", "true");
		btnIcon.classList.add("tab-throbber");
		btnIcon._restore = function() {
			delete btnIcon._restore;
			btnIcon.removeAttribute("busy");
			btnIcon.removeAttribute("progress");
			setTimeout(function() {
				btnIcon.classList.remove("tab-throbber");
				btnIcon.removeAttribute("style");
				btnIcon.removeAttribute("fadein");
			}, 0);
		};
	}
	this.loading = function() {
		btnIcon.src = this.imgLoading;
		if(useAnimation)
			btnIcon.setAttribute("progress", "true");
	};
	this.restore = function() {
		btnIcon.src = origIcon;
		if(useAnimation)
			btnIcon._restore();
	};
}
}).call(this);