Timer updates

- Switch to Mozilla's Timer.jsm for timer functions in XPCOM scope
- Add setInterval/clearInterval/requestIdleCallback/cancelIdleCallback
- Add all timer functions to plugins sandbox

chrome/content/zotero/xpcom/plugins.js

@@ -92,8 +92,12 @@ Zotero.Plugins = new function () {
 		}
 		Object.assign(scope, { Services, Worker, ChromeWorker, Zotero });
 		// Add additional global functions
-		scope.setTimeout = Zotero.setTimeout;
-		scope.clearTimeout = Zotero.clearTimeout;
+		scope.setTimeout = setTimeout;
+		scope.clearTimeout = clearTimeout;
+		scope.setInterval = setInterval;
+		scope.clearInterval = clearInterval;
+		scope.requestIdleCallback = requestIdleCallback;
+		scope.cancelIdleCallback = cancelIdleCallback;
 		
 		scopes.set(addon.id, scope);
 		

chrome/content/zotero/xpcom/zotero.js

@@ -1427,41 +1427,6 @@ Services.scriptloader.loadSubScript("resource://zotero/polyfill.js");
 		return Zotero.Utilities.Internal.spawn(generator, thisObject);
 	}
 	
-	
-	/**
-	 * Emulates the behavior of window.setTimeout
-	 *
-	 * @param {Function} func			The function to be called
-	 * @param {Integer} ms				The number of milliseconds to wait before calling func
-	 * @return {Integer} - ID of timer to be passed to clearTimeout()
-	 */
-	var _lastTimeoutID = 0;
-	this.setTimeout = function (func, ms) {
-		var id = ++_lastTimeoutID;
-		
-		var timer = Components.classes["@mozilla.org/timer;1"]
-			.createInstance(Components.interfaces.nsITimer);
-		var timerCallback = {
-			"notify": function () {
-				func();
-				_runningTimers.delete(id);
-			}
-		};
-		timer.initWithCallback(timerCallback, ms, Components.interfaces.nsITimer.TYPE_ONE_SHOT);
-		_runningTimers.set(id, timer);
-		return id;
-	};
-	
-	
-	this.clearTimeout = function (id) {
-		var timer = _runningTimers.get(id);
-		if (timer) {
-			timer.cancel();
-			_runningTimers.delete(id);
-		}
-	};
-	
-	
 	/**
 	 * Show Zotero pane overlay and progress bar in all windows
 	 *

components/zotero-service.js

@@ -200,17 +200,6 @@ ZoteroContext.prototype = {
 	"Cc":Cc,
 	"Ci":Ci,
 	
-	/**
-	 * Convenience method to replicate window.setTimeout()
-	 **/
-	"setTimeout":function setTimeout(func, ms){
-		return this.Zotero.setTimeout(func, ms);
-	},
-	
-	"clearTimeout":function setTimeout(id) {
-		this.Zotero.clearTimeout(id);
-	},
-	
 	/**
 	 * Switches in or out of connector mode
 	 */
@@ -246,6 +235,18 @@ ZoteroContext.prototype = {
 	}
 };
 
+const { XPCOMUtils } = ChromeUtils.import(
+	"resource://gre/modules/XPCOMUtils.jsm"
+);
+XPCOMUtils.defineLazyModuleGetters(ZoteroContext.prototype, {
+	setTimeout: "resource://gre/modules/Timer.jsm",
+	clearTimeout: "resource://gre/modules/Timer.jsm",
+	setInterval: "resource://gre/modules/Timer.jsm",
+	clearInterval: "resource://gre/modules/Timer.jsm",
+	requestIdleCallback: "resource://gre/modules/Timer.jsm",
+	cancelIdleCallback: "resource://gre/modules/Timer.jsm",
+});
+
 /**
  * The class from which the Zotero global XPCOM context is constructed
  *