fix(collectionRepeat): remove elements at correct time when leaving page

Author: ajoslin

Diff for: js/angular/service/collectionRepeatDataSource.js

@@ -48,14 +48,7 @@ function($cacheFactory, $parse, $rootScope) {
     destroy: function() {
       this.dimensions.length = 0;
       this.data = null;
-      forEach(this.backupItemsArray, function(item) {
-        this.destroyItem(item);
-      }, this);
       this.backupItemsArray.length = 0;
-
-      forEach(this.attachedItems, function(item, key) {
-        this.destroyItem(item);
-      }, this);
       this.attachedItems = {};
     },
     calculateDataDimensions: function() {

Diff for: js/angular/service/collectionRepeatManager.js

@@ -78,9 +78,10 @@ function($rootScope, $timeout) {
 
   CollectionRepeatManager.prototype = {
     destroy: function() {
-      for (var i in this.renderedItems) {
-        this.removeItem(i);
-      }
+      this.renderedItems = {};
+      this.render = angular.noop;
+      this.calculateDimensions = angular.noop;
+      this.dimensions = [];
     },
 
     /*

Diff for: test/unit/angular/service/collectionDataSource.unit.js

@@ -70,20 +70,6 @@ describe('$collectionDataSource service', function() {
     });
   });
 
-  it('.destroy() should cleanup dimensions backupItemsArray and attachedItems', function() {
-    var source = setup();
-    source.dimensions = [1,2,3];
-    source.attachedItems = {0: 'a'};
-    source.backupItemsArray = ['b'];
-    spyOn(source, 'destroyItem');
-    source.destroy();
-    expect(source.dimensions.length).toBe(0);
-    expect(source.destroyItem).toHaveBeenCalledWith('a');
-    expect(source.destroyItem).toHaveBeenCalledWith('b');
-    expect(source.attachedItems).toEqual({});
-    expect(source.backupItemsArray).toEqual([]);
-  });
-
   it('.calculateDataDimensions()', function() {
     function widthGetter(scope, locals) {
       return locals.$index + locals.item + 'w';

Diff for: test/unit/angular/service/collectionRepeatManager.unit.js

@@ -168,15 +168,6 @@ describe('collectionRepeatManager service', function() {
 
   });
 
-  it('.destroy() should remove items', function() {
-    var manager = setup();
-    spyOn(manager, 'removeItem');
-    manager.renderedItems = { '1': true, '2': true };
-    manager.destroy();
-    expect(manager.removeItem).toHaveBeenCalledWith('1');
-    expect(manager.removeItem).toHaveBeenCalledWith('2');
-  });
-
   describe('.calculateDimensions()', function() {
     it('should work with 1 item per space', function() {
       var manager = setup();