Migrate from fullPath to Entry in the mosaic view.

This patch removes the last instance of fullPath in the mosaic view and replaces it with use of the volume manager to extract the location information.

TEST=Tested manually.
BUG=320967

Review URL: https://codereview.chromium.org/130383003

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@244126 0039d316-1c4b-4281-b951-d872f2087c98

chrome/browser/resources/file_manager/foreground/js/photo/gallery.js

@@ -219,6 +219,7 @@ Gallery.prototype.initDom_ = function() {
                                     this.dataModel_,
                                     this.selectionModel_,
                                     this.metadataCache_,
+                                    this.volumeManager_,
                                     this.toggleMode_.bind(this, null));
 
   this.slideMode_ = new SlideMode(this.container_,

chrome/browser/resources/file_manager/foreground/js/photo/mosaic_mode.js

@@ -9,13 +9,16 @@
  * @param {cr.ui.ArrayDataModel} dataModel Data model.
  * @param {cr.ui.ListSelectionModel} selectionModel Selection model.
  * @param {MetadataCache} metadataCache Metadata cache.
+ * @param {VolumeManagerWrapper} volumeManager Volume manager.
  * @param {function} toggleMode Function to switch to the Slide mode.
  * @constructor
  */
 function MosaicMode(
-    container, dataModel, selectionModel, metadataCache, toggleMode) {
+    container, dataModel, selectionModel, metadataCache, volumeManager,
+    toggleMode) {
   this.mosaic_ = new Mosaic(
-      container.ownerDocument, dataModel, selectionModel, metadataCache);
+      container.ownerDocument, dataModel, selectionModel, metadataCache,
+      volumeManager);
   container.appendChild(this.mosaic_);
 
   this.toggleMode_ = toggleMode;
@@ -73,12 +76,15 @@ MosaicMode.prototype.onKeyDown = function(event) {
  * @param {cr.ui.ArrayDataModel} dataModel Data model.
  * @param {cr.ui.ListSelectionModel} selectionModel Selection model.
  * @param {MetadataCache} metadataCache Metadata cache.
+ * @param {VolumeManagerWrapper} volumeManager Volume manager.
  * @return {Element} Mosaic element.
  * @constructor
  */
-function Mosaic(document, dataModel, selectionModel, metadataCache) {
+function Mosaic(document, dataModel, selectionModel, metadataCache,
+    volumeManager) {
   var self = document.createElement('div');
-  Mosaic.decorate(self, dataModel, selectionModel, metadataCache);
+  Mosaic.decorate(
+      self, dataModel, selectionModel, metadataCache, volumeManager);
   return self;
 }
 
@@ -109,14 +115,17 @@ Mosaic.ANIMATED_SCROLL_DURATION = 500;
  * @param {cr.ui.ArrayDataModel} dataModel Data model.
  * @param {cr.ui.ListSelectionModel} selectionModel Selection model.
  * @param {MetadataCache} metadataCache Metadata cache.
+ * @param {VolumeManagerWrapper} volumeManager Volume manager.
  */
-Mosaic.decorate = function(self, dataModel, selectionModel, metadataCache) {
+Mosaic.decorate = function(
+    self, dataModel, selectionModel, metadataCache, volumeManager) {
   self.__proto__ = Mosaic.prototype;
   self.className = 'mosaic';
 
   self.dataModel_ = dataModel;
   self.selectionModel_ = selectionModel;
   self.metadataCache_ = metadataCache;
+  self.volumeManager_ = volumeManager;
 
   // Initialization is completed lazily on the first call to |init|.
 };
@@ -135,8 +144,12 @@ Mosaic.prototype.init = function() {
       new Mosaic.SelectionController(this.selectionModel_, this.layoutModel_);
 
   this.tiles_ = [];
-  for (var i = 0; i !== this.dataModel_.length; i++)
-    this.tiles_.push(new Mosaic.Tile(this, this.dataModel_.item(i)));
+  for (var i = 0; i !== this.dataModel_.length; i++) {
+    var locationInfo =
+        this.volumeManager_.getLocationInfo(this.dataModel_.item(i).getEntry());
+    this.tiles_.push(
+        new Mosaic.Tile(this, this.dataModel_.item(i), locationInfo));
+  }
 
   this.selectionModel_.selectedIndexes.forEach(function(index) {
     this.tiles_[index].select(true);
@@ -1622,12 +1635,13 @@ Mosaic.Row.prototype.layout = function(left, top, width, height) {
  *
  * @param {Element} container Container element.
  * @param {Gallery.Item} item Gallery item associated with this tile.
+ * @param {EntryLocation} locationInfo Location information for the tile.
  * @return {Element} The new tile element.
  * @constructor
  */
-Mosaic.Tile = function(container, item) {
+Mosaic.Tile = function(container, item, locationInfo) {
   var self = container.ownerDocument.createElement('div');
-  Mosaic.Tile.decorate(self, container, item);
+  Mosaic.Tile.decorate(self, container, item, locationInfo);
   return self;
 };
 
@@ -1635,14 +1649,16 @@ Mosaic.Tile = function(container, item) {
  * @param {Element} self Self pointer.
  * @param {Element} container Container element.
  * @param {Gallery.Item} item Gallery item associated with this tile.
+ * @param {EntryLocation} locationInfo Location info for the tile image.
  */
-Mosaic.Tile.decorate = function(self, container, item) {
+Mosaic.Tile.decorate = function(self, container, item, locationInfo) {
   self.__proto__ = Mosaic.Tile.prototype;
   self.className = 'mosaic-tile';
 
   self.container_ = container;
   self.item_ = item;
   self.left_ = null; // Mark as not laid out.
+  self.hidpiEmbedded_ = locationInfo && locationInfo.isDriveBased;
 };
 
 /**
@@ -1777,21 +1793,18 @@ Mosaic.Tile.prototype.init = function(metadata, onImageMeasured) {
   var priority = this.getAttribute('selected') ? 2 : 3;
 
   // Use embedded thumbnails on Drive, since they have higher resolution.
-  // TODO(mtomasz): Use Entry instead of paths.
-  var hidpiEmbedded =
-      PathUtil.isDriveBasedPath(this.getItem().getEntry().fullPath);
   this.thumbnailLoader_ = new ThumbnailLoader(
       this.getItem().getEntry(),
       ThumbnailLoader.LoaderType.CANVAS,
       metadata,
       undefined,  // Media type.
-      hidpiEmbedded ? ThumbnailLoader.UseEmbedded.USE_EMBEDDED :
+      this.hidpiEmbedded_ ? ThumbnailLoader.UseEmbedded.USE_EMBEDDED :
                             ThumbnailLoader.UseEmbedded.NO_EMBEDDED,
       priority);
 
   // If no hidpi embedded thumbnail available, then use the low resolution
   // for preloading.
-  if (!hidpiEmbedded) {
+  if (!this.hidpiEmbedded_) {
     this.thumbnailPreloader_ = new ThumbnailLoader(
         this.getItem().getEntry(),
         ThumbnailLoader.LoaderType.CANVAS,