From f47952042c5dfc6b9cc6d7b9a4ceeb82f26b4527 Mon Sep 17 00:00:00 2001
From: =?utf8?q?Tim=20D=C3=BCsterhus?= <duesterhus@woltlab.com>
Date: Tue, 19 May 2015 01:41:06 +0200
Subject: [PATCH] Add WoltLab/WCF/Timer/Repeating

---
 wcfsetup/install/files/js/WCF.js              |  7 +-
 .../install/files/js/WoltLab/WCF/Template.js  |  2 +-
 .../files/js/WoltLab/WCF/Timer/Repeating.js   | 70 +++++++++++++++++++
 3 files changed, 72 insertions(+), 7 deletions(-)
 create mode 100644 wcfsetup/install/files/js/WoltLab/WCF/Timer/Repeating.js

diff --git a/wcfsetup/install/files/js/WCF.js b/wcfsetup/install/files/js/WCF.js
index 6a76186847..ce88b23550 100755
--- a/wcfsetup/install/files/js/WCF.js
+++ b/wcfsetup/install/files/js/WCF.js
@@ -1962,12 +1962,7 @@ WCF.Clipboard = {
 };
 
 /**
- * Provides a simple call for periodical executed functions. Based upon
- * ideas by Prototype's PeriodicalExecuter.
- * 
- * @see		https://github.com/sstephenson/prototype/blob/master/src/prototype/lang/periodical_executer.js
- * @param	function		callback
- * @param	integer			delay
+ * @deprecated Use WoltLab/WCF/Timer/Repeating
  */
 WCF.PeriodicalExecuter = Class.extend({
 	/**
diff --git a/wcfsetup/install/files/js/WoltLab/WCF/Template.js b/wcfsetup/install/files/js/WoltLab/WCF/Template.js
index 2ce9afd4d9..ea28a33d12 100644
--- a/wcfsetup/install/files/js/WoltLab/WCF/Template.js
+++ b/wcfsetup/install/files/js/WoltLab/WCF/Template.js
@@ -42,7 +42,7 @@ define(['./Template.grammar', './StringUtil', 'Language'], function(parser, Stri
 			+ "v.__wcf = window.WCF; v.__window = window;\n"
 			+ "return " + template;
 			
-			this.fetch = new Function("StringUtil", "Language", "v", template).bind(null, StringUtil, Language);
+			this.fetch = new Function("StringUtil", "Language", "v", template).bind(undefined, StringUtil, Language);
 		}
 		catch (e) {
 			console.debug(e.message);
diff --git a/wcfsetup/install/files/js/WoltLab/WCF/Timer/Repeating.js b/wcfsetup/install/files/js/WoltLab/WCF/Timer/Repeating.js
new file mode 100644
index 0000000000..baa94f72b2
--- /dev/null
+++ b/wcfsetup/install/files/js/WoltLab/WCF/Timer/Repeating.js
@@ -0,0 +1,70 @@
+/**
+ * Provides an object oriented API on top of `setInterval`.
+ * 
+ * @author	Tim Duesterhus
+ * @copyright	2001-2015 WoltLab GmbH
+ * @license	GNU Lesser General Public License <http://opensource.org/licenses/lgpl-license.php>
+ * @module	WoltLab/WCF/Timer/Repeating
+ */
+define([], function() {
+	"use strict";
+	
+	/**
+	 * Creates a new timer that executes the given `callback` every `delta` milliseconds.
+	 * It will be created in started mode. Call `stop()` if necessary.
+	 * The `callback` will be passed the owning instance of `Repeating`.
+	 * 
+	 * @constructor
+	 * @param	{function(Repeating)}	callback
+	 * @param	{int}			delta
+	 */
+	function Repeating(callback, delta) {
+		if (typeof callback !== 'function') {
+			throw new TypeError("Expected a valid callback as first argument.");
+		}
+		if (delta < 0 || delta > 86400 * 1000) {
+			throw new RangeError("Invalid delta " + delta + ". Delta must be in the interval [0, 86400000].");
+		}
+		
+		// curry callback with `this` as the first parameter
+		this._callback = callback.bind(undefined, this);
+		
+		this._delta = delta;
+		this._timer = undefined;
+		
+		this.restart();
+	};
+	Repeating.prototype = {
+		/**
+		 * Stops the timer and restarts it. The next call will occur in `delta` milliseconds.
+		 */
+		restart: function() {
+			this.stop();
+			
+			this._timer = setInterval(this._callback, this._delta);
+		},
+		
+		/**
+		 * Stops the timer. It will no longer be called until you call `restart`.
+		 */
+		stop: function() {
+			if (this._timer !== undefined) {
+				clearInterval(this._timer);
+				this._timer = undefined;
+			}
+		},
+		
+		/**
+		 * Changes the `delta` of the timer and `restart`s it.
+		 * 
+		 * @param	{int}	delta	New delta of the timer.
+		 */
+		setDelta: function(delta) {
+			this._delta = delta;
+			
+			this.restart();
+		}
+	};
+	
+	return Repeating;
+});
-- 
2.20.1