Gallery: Store image caches in Gallery items.

ui/file_manager/gallery/js/slide_mode.js

 // Copyright 2014 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.
 
 'use strict';
 
 /**
  * Slide mode displays a single image and has a set of controls to navigate
  * between the images and to edit an image.
  *
@@ skipping 19 matching lines @@
   this.prompt_ = prompt;
   this.dataModel_ = dataModel;
   this.selectionModel_ = selectionModel;
   this.context_ = context;
   this.metadataCache_ = context.metadataCache;
   this.toggleMode_ = toggleMode;
   this.displayStringFunction_ = displayStringFunction;
 
   this.onSelectionBound_ = this.onSelection_.bind(this);
   this.onSpliceBound_ = this.onSplice_.bind(this);
-  this.onContentBound_ = this.onContentChange_.bind(this);
 
   // Unique numeric key, incremented per each load attempt used to discard
   // old attempts. This can happen especially when changing selection fast or
   // Internet connection is slow.
   this.currentUniqueKey_ = 0;
 
   this.initListeners_();
   this.initDom_();
 }
 
@@ skipping 198 matching lines @@
 SlideMode.prototype.enter = function(
     zoomFromRect, displayCallback, loadCallback) {
   this.sequenceDirection_ = 0;
   this.sequenceLength_ = 0;
 
   var loadDone = function(loadType, delay) {
     this.active_ = true;
 
     this.selectionModel_.addEventListener('change', this.onSelectionBound_);
     this.dataModel_.addEventListener('splice', this.onSpliceBound_);
-    this.dataModel_.addEventListener('content', this.onContentBound_);
 
     ImageUtil.setAttribute(this.arrowBox_, 'active', this.getItemCount_() > 1);
     this.ribbon_.enable();
 
     // Wait 1000ms after the animation is done, then prefetch the next image.
     this.requestPrefetch(1, delay + 1000);
 
     if (loadCallback) loadCallback();
   }.bind(this);
 
@@ skipping 37 matching lines @@
         });
   }.bind(this)).then(function(delay) {
     // Turn the mode active.
     this.active_ = true;
     ImageUtil.setAttribute(this.arrowBox_, 'active', this.getItemCount_() > 1);
     this.ribbon_.enable();
 
     // Register handlers.
     this.selectionModel_.addEventListener('change', this.onSelectionBound_);
     this.dataModel_.addEventListener('splice', this.onSpliceBound_);
-    this.dataModel_.addEventListener('content', this.onContentBound_);
     this.touchHandlers_.enabled = true;
 
     // Wait 1000ms after the animation is done, then prefetch the next image.
     this.requestPrefetch(1, delay + 1000);
 
     // Call load callback.
     if (loadCallback)
       loadCallback();
   }.bind(this)).catch(function(error) {
     console.error(error.stack, error);
   });
 };
 
 /**
  * Leave the mode.
  * @param {Rect} zoomToRect Rectangle for zoom effect.
  * @param {function} callback Called when the image is committed and
  *   the zoom-out animation has started.
  */
 SlideMode.prototype.leave = function(zoomToRect, callback) {
   var commitDone = function() {
       this.stopEditing_();
       this.stopSlideshow_();
       ImageUtil.setAttribute(this.arrowBox_, 'active', false);
       this.selectionModel_.removeEventListener(
           'change', this.onSelectionBound_);
       this.dataModel_.removeEventListener('splice', this.onSpliceBound_);
-      this.dataModel_.removeEventListener('content', this.onContentBound_);
       this.ribbon_.disable();
       this.active_ = false;
       if (this.savedSelection_)
         this.selectionModel_.selectedIndexes = this.savedSelection_;
       this.unloadImage_(zoomToRect);
       callback();
     }.bind(this);
 
   this.viewport_.resetView();
   if (this.getItemCount_() === 0) {
@@ skipping 633 matching lines @@
       ImageUtil.metrics.recordUserAction(ImageUtil.getMetricName('Edit'));
 
     callback();
     cr.dispatchSimpleEvent(this, 'image-saved');
   }.bind(this)).catch(function(error) {
     console.error(error.stack || error);
   });
 };
 
 /**
- * Update caches when the selected item has been renamed.
- * @param {Event} event Event.
- * @private
- */
-SlideMode.prototype.onContentChange_ = function(event) {
-  var newEntry = event.item.getEntry();
-  if (!util.isSameEntry(newEntry, event.oldEntry))
-    this.imageView_.changeEntry(newEntry);
-};
-
-/**
  * Flash 'Saved' label briefly to indicate that the image has been saved.
  * @private
  */
 SlideMode.prototype.flashSavedLabel_ = function() {
   var setLabelHighlighted =
       ImageUtil.setAttribute.bind(null, this.savedLabel_, 'highlighted');
   setTimeout(setLabelHighlighted.bind(null, true), 0);
   setTimeout(setLabelHighlighted.bind(null, false), 300);
 };
 
@@ skipping 531 matching lines @@
       else
         viewport.setRotation(this.gestureStartRotation_);
       this.slideMode_.applyViewportChange();
       break;
   }
 
   // Update the last event.
   this.lastEvent_ = event;
   this.lastZoom_ = viewport.getZoom();
 };