Add type annotations to gallery/js/gallery.js.

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.
 
 /**
  * Slide mode displays a single image and has a set of controls to navigate
  * between the images and to edit an image.
  *
  * @param {!HTMLElement} container Main container element.
  * @param {!HTMLElement} content Content container element.
  * @param {!HTMLElement} toolbar Toolbar element.
  * @param {!ImageEditor.Prompt} prompt Prompt.
  * @param {!ErrorBanner} errorBanner Error banner.
  * @param {!cr.ui.ArrayDataModel} dataModel Data model.
  * @param {!cr.ui.ListSelectionModel} selectionModel Selection model.
  * @param {!Object} context Context.
  * @param {!VolumeManager} volumeManager Volume manager.
  * @param {function(function())} toggleMode Function to toggle the Gallery mode.
  * @param {function(string):string} displayStringFunction String formatting
  *     function.
  * @constructor
  * @struct
+ * @extends {cr.EventTarget}
  */
 function SlideMode(container, content, toolbar, prompt, errorBanner, dataModel,
     selectionModel, context, volumeManager, toggleMode, displayStringFunction) {
   /**
    * @type {!HTMLElement}
    * @private
    * @const
    */
   this.container_ = container;
 
@@ skipping 464 matching lines @@
  */
 SlideMode.prototype.getTitle = function() { return 'GALLERY_SLIDE'; };
 
 /**
  * @return {!Viewport} Viewport.
  */
 SlideMode.prototype.getViewport = function() { return this.viewport_; };
 
 /**
  * Load items, display the selected item.
- * @param {!ImageRect} zoomFromRect Rectangle for zoom effect.
+ * @param {ImageRect} zoomFromRect Rectangle for zoom effect.
  * @param {function()} displayCallback Called when the image is displayed.
  * @param {function()} loadCallback Called when the image is displayed.
  */
 SlideMode.prototype.enter = function(
     zoomFromRect, displayCallback, loadCallback) {
   this.sequenceDirection_ = 0;
   this.sequenceLength_ = 0;
 
   var loadDone = function(loadType, delay) {
     this.active_ = true;
@@ skipping 67 matching lines @@
     // Call load callback.
     if (loadCallback)
       loadCallback();
   }.bind(this)).catch(function(error) {
     console.error(error.stack, error);
   });
 };
 
 /**
  * Leave the mode.
- * @param {!ImageRect} zoomToRect Rectangle for zoom effect.
+ * @param {ImageRect} 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_);
@@ skipping 461 matching lines @@
 SlideMode.prototype.requestPrefetch = function(direction, delay) {
   if (this.getItemCount_() <= 1) return;
 
   var index = this.getNextSelectedIndex_(direction);
   this.imageView_.prefetch(this.getItem(index), delay);
 };
 
 // Event handlers.
 
 /**
- * Unload handler, to be called from the top frame.
- * @param {boolean} exiting True if the app is exiting.
- */
-SlideMode.prototype.onUnload = function(exiting) {
-};
-
-/**
  * Click handler for the image container.
  *
  * @param {!Event} event Mouse click event.
  * @private
  */
 SlideMode.prototype.onClick_ = function(event) {
 };
 
 /**
  * Click handler for the entire document.
@@ skipping 765 matching lines @@
   var event = assertInstanceof(event, MouseEvent);
   var viewport = this.slideMode_.getViewport();
   if (!this.enabled_ || !viewport.isZoomed())
     return;
   this.stopOperation();
   viewport.setOffset(
       viewport.getOffsetX() + event.wheelDeltaX,
       viewport.getOffsetY() + event.wheelDeltaY);
   this.slideMode_.applyViewportChange();
 };