From 8174405924fde12488b73dbf58a70ceef4f57665 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?J=C3=BCrg=20Lehni?= <juerg@scratchdisk.com>
Date: Sun, 12 Apr 2015 15:23:24 +0200
Subject: [PATCH] Include force parameter in View#update()

Closes #675.
---
 src/view/CanvasView.js | 12 ++++++++----
 src/view/View.js       |  5 ++++-
 2 files changed, 12 insertions(+), 5 deletions(-)

diff --git a/src/view/CanvasView.js b/src/view/CanvasView.js
index eb184aef..4874b804 100644
--- a/src/view/CanvasView.js
+++ b/src/view/CanvasView.js
@@ -109,13 +109,17 @@ var CanvasView = View.extend(/** @lends CanvasView# */{
     },
 
     /**
-     * Updates the view if there are changes.
+     * Updates the view if there are changes. Note that when using built-in
+     * event hanlders for interaction, animation and load events, this method is
+     * invoked for you automatically at the end.
      *
-     * @function
+     * @param {Boolean} [force=false] {@true if the view should be updated even
+     * if no change has happened}
+     * @return {Boolean} {@true if the view was updated}
      */
-    update: function() {
+    update: function(force) {
         var project = this._project;
-        if (!project || !project._needsUpdate)
+        if (!project || !force && !project._needsUpdate)
             return false;
         // Initial tests conclude that clearing the canvas using clearRect
         // is always faster than setting canvas.width = canvas.width
diff --git a/src/view/View.js b/src/view/View.js
index c6c3f8f4..3f955749 100644
--- a/src/view/View.js
+++ b/src/view/View.js
@@ -457,8 +457,11 @@ var View = Base.extend(Emitter, /** @lends View# */{
      *
      * @name View#update
      * @function
+     * @param {Boolean} [force=false] {@true if the view should be updated even
+     * if no change has happened}
+     * @return {Boolean} {@true if the view was updated}
      */
-    // update: function() {
+    // update: function(force) {
     // },
 
     /**