Bug 1015000 - [Vertical Homescreen] Trying to stop a flywheel scrolli…

…ng start an application r=kgrandon

shared/elements/gaia_grid/js/grid_view.js

@@ -8,6 +8,8 @@
 
 (function(exports) {
 
+  const PREVENT_CLICK_TIMEOUT = 300;
+
   /**
    * GridView is a generic class to render and display a grid of items.
    * @param {Object} config Configuration object containing: 
@@ -16,6 +18,7 @@
   function GridView(config) {
     this.config = config;
     this.clickIcon = this.clickIcon.bind(this);
+    this.onScroll = this.onScroll.bind(this);
 
     if (config.features.zoom) {
       this.zoom = new GridZoom(this);
@@ -65,10 +68,20 @@
 
     start: function() {
       this.element.addEventListener('click', this.clickIcon);
+      window.addEventListener('scroll', this.onScroll);
     },
 
     stop: function() {
       this.element.removeEventListener('click', this.clickIcon);
+      window.removeEventListener('scroll', this.onScroll);
+    },
+
+    onScroll: function(e) {
+      this.element.removeEventListener('click', this.clickIcon);
+      clearTimeout(this.preventClickTimeout);
+      this.preventClickTimeout = setTimeout(function addClickEvent() {
+        this.element.addEventListener('click', this.clickIcon);
+      }.bind(this), PREVENT_CLICK_TIMEOUT);
     },
 
     /**