NTP5: Fix page blacklisting and remove recently closed tabs when they're clicked. Fix the styling …

chrome/browser/resources/ntp_search/thumbnail_page.js

 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 cr.define('ntp', function() {
   'use strict';
 
   var Tile = ntp.Tile2;
   var TilePage = ntp.TilePage2;
 
@@ skipping 92 matching lines @@
       var favicon = thumbnailImage.querySelector('.thumbnail-favicon');
       if (favicon)
         thumbnailImage.removeChild(favicon);
 
       var self = this;
       var image = new Image();
 
       // If the thumbnail image fails to load, show the favicon and URL instead.
       // TODO(jeremycho): Move to a separate function?
       image.onerror = function() {
-        banner = self.ownerDocument.createElement('div');
+        banner = thumbnailImage.querySelector('.thumbnail-banner') ||
+            self.ownerDocument.createElement('div');
         banner.className = 'thumbnail-banner';
 
         // For now, just strip leading http://www and trailing backslash.
         // TODO(jeremycho): Consult with UX on URL truncation.
         banner.textContent = dataUrl.replace(/^(http:\/\/)?(www\.)?|\/$/gi, '');
         thumbnailImage.appendChild(banner);
 
-        favicon = self.ownerDocument.createElement('div');
+        favicon = thumbnailImage.querySelector('.thumbnail-favicon') ||
+            self.ownerDocument.createElement('div');
         favicon.className = 'thumbnail-favicon';
         favicon.style.backgroundImage =
             url('chrome://favicon/size/16/' + dataUrl);
         thumbnailImage.appendChild(favicon);
       }
 
       var thumbnailUrl = ntp.getThumbnailUrl(dataUrl);
       thumbnailImage.style.backgroundImage = url(thumbnailUrl);
       image.src = thumbnailUrl;
     },
@@ skipping 53 matching lines @@
     },
 
     /**
      * Update the tiles after a change to |data_|.
      */
     updateTiles_: function() {
       if (!this.hasBeenRendered())
         this.layout_();
 
       var maxTileCount = this.config_.maxTileCount;
-      var data = this.data_;
+      var data = this.getValidData_();
       var tiles = this.tiles;
       for (var i = 0; i < maxTileCount; i++) {
         var page = data[i];
         var tile = tiles[i];
 
         // TODO(pedrosimonetti): What do we do when there's no tile here?
         if (!tile)
           return;
 
         if (i >= data.length)
           tile.reset();
         else
           tile.updateForData(page);
       }
     },
 
     /**
-     * Array of thumbnail data objects.
-     * @type {Array}
+     * Returns an array of thumbnail data objects.
+     * @return {Array} An array of thumbnail data objects.
      */
-    get data() {
+    getData: function() {
       return this.data_;
     },
-    set data(data) {
-      console.error('ThumbnailPage: data_ setter is not implemented.');
+
+    /**
+     * Sets the data that will be used to create Thumbnails.
+     * @param {Array} data The array of data.
+     */
+    setData: function(data) {
+      var maxTileCount = this.config_.maxTileCount;
+
+      if (!this.data_)
+        this.data_ = data.slice(0, maxTileCount);
+      else
+        this.data_ = this.refreshData_(this.data_, data, maxTileCount);
+
+      var validDataLength = this.getValidData_().length;
+      var tileCount = this.tileCount;
+      // Create or remove tiles if necessary.
+      if (tileCount < validDataLength)
+        this.createTiles_(validDataLength - tileCount);
+      else if (tileCount > validDataLength) {
+        // TODO(jeremycho): Consider rewriting removeTile to be compatible with
+        // pages other than Apps and calling it here.
+        for (var i = 0; i < tileCount - validDataLength; i++)
+          this.tiles_.pop();
+      }
+
+      // TODO(pedrosimonetti): Fix this as part of a larger restructuring of
+      // the layout/render logic.
+      if (validDataLength != tileCount && tileCount > 0)
+        this.renderGrid_();
+      this.updateTiles_();
+    },
+
+    /**
+     * Given an array of new data, returns the data that should replace the
+     * current array of data.  Here we simply return the new data.
+     * @param {Array} oldData The current page list.
+     * @param {Array} newData The new page list.
+     * @param {number} maxTileCount The maximum number of tiles to render.
+     * @return {Array} The merged page list that should replace the current page
+     *     list.
+     * @private
+     */
+    refreshData_: function(oldData, newData, maxTileCount) {
+      return newData.slice(0, maxTileCount);
+    },
+
+    /**
+     * Returns all data entries that should be used when updating the tiles.
+     * @private
+     * @return {Array} Data entries for updating tiles.
+     */
+    getValidData_: function() {
+      return this.data_;
     },
 
     /** @inheritDoc */
     shouldAcceptDrag: function(e) {
       return false;
     },
   };
 
   return {
     Thumbnail: Thumbnail,
     ThumbnailPage: ThumbnailPage
   };
 });