| // 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'; |
| |
| /** |
| * Called from the main frame when unloading. |
| * @param {boolean=} opt_exiting True if the app is exiting. |
| */ |
| function unload(opt_exiting) { Gallery.instance.onUnload(opt_exiting); } |
| |
| /** |
| * Overrided metadata worker's path. |
| * @type {string} |
| * @const |
| */ |
| ContentProvider.WORKER_SCRIPT = '/js/metadata_worker.js'; |
| |
| /** |
| * Data model for gallery. |
| * |
| * @param {MetadataCache} metadataCache Metadata cache. |
| * @constructor |
| * @extends {cr.ui.ArrayDataModel} |
| */ |
| function GalleryDataModel(metadataCache) { |
| cr.ui.ArrayDataModel.call(this, []); |
| |
| /** |
| * Metadata cache. |
| * @type {MetadataCache} |
| * @private |
| */ |
| this.metadataCache_ = metadataCache; |
| |
| /** |
| * Directory where the image is saved if the image is located in a read-only |
| * volume. |
| * @type {DirectoryEntry} |
| */ |
| this.fallbackSaveDirectory = null; |
| } |
| |
| /** |
| * Maximum number of full size image cache. |
| * @type {number} |
| * @const |
| * @private |
| */ |
| GalleryDataModel.MAX_FULL_IMAGE_CACHE_ = 3; |
| |
| /** |
| * Maximum number of screen size image cache. |
| * @type {number} |
| * @const |
| * @private |
| */ |
| GalleryDataModel.MAX_SCREEN_IMAGE_CACHE_ = 5; |
| |
| GalleryDataModel.prototype = { |
| __proto__: cr.ui.ArrayDataModel.prototype |
| }; |
| |
| /** |
| * Saves new image. |
| * |
| * @param {Gallery.Item} item Original gallery item. |
| * @param {Canvas} canvas Canvas containing new image. |
| * @param {boolean} overwrite Whether to overwrite the image to the item or not. |
| * @return {Promise} Promise to be fulfilled with when the operation completes. |
| */ |
| GalleryDataModel.prototype.saveItem = function(item, canvas, overwrite) { |
| var oldEntry = item.getEntry(); |
| var oldMetadata = item.getMetadata(); |
| var metadataEncoder = ImageEncoder.encodeMetadata( |
| item.getMetadata(), canvas, 1 /* quality */); |
| var newMetadata = ContentProvider.ConvertContentMetadata( |
| metadataEncoder.getMetadata(), |
| MetadataCache.cloneMetadata(item.getMetadata())); |
| if (newMetadata.filesystem) |
| newMetadata.filesystem.modificationTime = new Date(); |
| if (newMetadata.drive) |
| newMetadata.drive.present = true; |
| |
| return new Promise(function(fulfill, reject) { |
| item.saveToFile( |
| this.fallbackSaveDirectory, |
| overwrite, |
| canvas, |
| metadataEncoder, |
| function(success) { |
| if (!success) { |
| reject('Failed to save the image.'); |
| return; |
| } |
| |
| // The item's entry is updated to the latest entry. Update metadata. |
| item.setMetadata(newMetadata); |
| |
| // Current entry is updated. |
| // Dispatch an event. |
| var event = new Event('content'); |
| event.item = item; |
| event.oldEntry = oldEntry; |
| event.metadata = newMetadata; |
| this.dispatchEvent(event); |
| |
| if (util.isSameEntry(oldEntry, item.getEntry())) { |
| // Need an update of metdataCache. |
| this.metadataCache_.set( |
| item.getEntry(), |
| Gallery.METADATA_TYPE, |
| newMetadata); |
| } else { |
| // New entry is added and the item now tracks it. |
| // Add another item for the old entry. |
| var anotherItem = new Gallery.Item( |
| oldEntry, |
| oldMetadata, |
| this.metadataCache_, |
| item.isOriginal(), |
| item.isReadOnly()); |
| // The item must be added behind the existing item so that it does |
| // not change the index of the existing item. |
| // TODO(hirono): Update the item index of the selection model |
| // correctly. |
| this.splice(this.indexOf(item) + 1, 0, anotherItem); |
| } |
| |
| fulfill(); |
| }.bind(this)); |
| }.bind(this)); |
| }; |
| |
| /** |
| * Evicts image caches in the items. |
| * @param {Gallery.Item} currentSelectedItem Current selected item. |
| */ |
| GalleryDataModel.prototype.evictCache = function(currentSelectedItem) { |
| // Sort the item by the last accessed date. |
| var sorted = this.slice().sort(function(a, b) { |
| return b.getLastAccessedDate() - a.getLastAccessedDate(); |
| }); |
| |
| // Evict caches. |
| var contentCacheCount = 0; |
| var screenCacheCount = 0; |
| for (var i = 0; i < sorted.length; i++) { |
| if (sorted[i].contentImage) { |
| if (++contentCacheCount > GalleryDataModel.MAX_FULL_IMAGE_CACHE_) { |
| if (sorted[i].contentImage.parentNode) { |
| console.error('The content image has a parent node.'); |
| } else { |
| // Force to free the buffer of the canvas by assigning zero size. |
| sorted[i].contentImage.width = 0; |
| sorted[i].contentImage.height = 0; |
| sorted[i].contentImage = null; |
| } |
| } |
| } |
| if (sorted[i].screenImage) { |
| if (++screenCacheCount > GalleryDataModel.MAX_SCREEN_IMAGE_CACHE_) { |
| if (sorted[i].screenImage.parentNode) { |
| console.error('The screen image has a parent node.'); |
| } else { |
| // Force to free the buffer of the canvas by assigning zero size. |
| sorted[i].screenImage.width = 0; |
| sorted[i].screenImage.height = 0; |
| sorted[i].screenImage = null; |
| } |
| } |
| } |
| } |
| }; |
| |
| /** |
| * Gallery for viewing and editing image files. |
| * |
| * @param {!VolumeManager} volumeManager The VolumeManager instance of the |
| * system. |
| * @constructor |
| */ |
| function Gallery(volumeManager) { |
| this.context_ = { |
| appWindow: chrome.app.window.current(), |
| onClose: function() { close(); }, |
| onMaximize: function() { |
| var appWindow = chrome.app.window.current(); |
| if (appWindow.isMaximized()) |
| appWindow.restore(); |
| else |
| appWindow.maximize(); |
| }, |
| onMinimize: function() { chrome.app.window.current().minimize(); }, |
| onAppRegionChanged: function() {}, |
| metadataCache: MetadataCache.createFull(volumeManager), |
| readonlyDirName: '', |
| displayStringFunction: function() { return ''; }, |
| loadTimeData: {} |
| }; |
| this.container_ = document.querySelector('.gallery'); |
| this.document_ = document; |
| this.metadataCache_ = this.context_.metadataCache; |
| this.volumeManager_ = volumeManager; |
| this.selectedEntry_ = null; |
| this.metadataCacheObserverId_ = null; |
| this.onExternallyUnmountedBound_ = this.onExternallyUnmounted_.bind(this); |
| |
| this.dataModel_ = new GalleryDataModel(this.context_.metadataCache); |
| var downloadVolumeInfo = this.volumeManager_.getCurrentProfileVolumeInfo( |
| VolumeManagerCommon.VolumeType.DOWNLOADS); |
| downloadVolumeInfo.resolveDisplayRoot().then(function(entry) { |
| this.dataModel_.fallbackSaveDirectory = entry; |
| }.bind(this)).catch(function(error) { |
| console.error( |
| 'Failed to obtain the fallback directory: ' + (error.stack || error)); |
| }); |
| this.selectionModel_ = new cr.ui.ListSelectionModel(); |
| |
| this.initDom_(); |
| this.initListeners_(); |
| } |
| |
| /** |
| * Gallery extends cr.EventTarget. |
| */ |
| Gallery.prototype.__proto__ = cr.EventTarget.prototype; |
| |
| /** |
| * Tools fade-out timeout in milliseconds. |
| * @const |
| * @type {number} |
| */ |
| Gallery.FADE_TIMEOUT = 3000; |
| |
| /** |
| * First time tools fade-out timeout in milliseconds. |
| * @const |
| * @type {number} |
| */ |
| Gallery.FIRST_FADE_TIMEOUT = 1000; |
| |
| /** |
| * Time until mosaic is initialized in the background. Used to make gallery |
| * in the slide mode load faster. In milliseconds. |
| * @const |
| * @type {number} |
| */ |
| Gallery.MOSAIC_BACKGROUND_INIT_DELAY = 1000; |
| |
| /** |
| * Types of metadata Gallery uses (to query the metadata cache). |
| * @const |
| * @type {string} |
| */ |
| Gallery.METADATA_TYPE = 'thumbnail|filesystem|media|streaming|drive'; |
| |
| /** |
| * Initializes listeners. |
| * @private |
| */ |
| Gallery.prototype.initListeners_ = function() { |
| this.keyDownBound_ = this.onKeyDown_.bind(this); |
| this.document_.body.addEventListener('keydown', this.keyDownBound_); |
| |
| this.inactivityWatcher_ = new MouseInactivityWatcher( |
| this.container_, Gallery.FADE_TIMEOUT, this.hasActiveTool.bind(this)); |
| |
| // Search results may contain files from different subdirectories so |
| // the observer is not going to work. |
| if (!this.context_.searchResults && this.context_.curDirEntry) { |
| this.metadataCacheObserverId_ = this.metadataCache_.addObserver( |
| this.context_.curDirEntry, |
| MetadataCache.CHILDREN, |
| 'thumbnail', |
| this.updateThumbnails_.bind(this)); |
| } |
| this.volumeManager_.addEventListener( |
| 'externally-unmounted', this.onExternallyUnmountedBound_); |
| }; |
| |
| /** |
| * Closes gallery when a volume containing the selected item is unmounted. |
| * @param {!Event} event The unmount event. |
| * @private |
| */ |
| Gallery.prototype.onExternallyUnmounted_ = function(event) { |
| if (!this.selectedEntry_) |
| return; |
| |
| if (this.volumeManager_.getVolumeInfo(this.selectedEntry_) === |
| event.volumeInfo) { |
| close(); |
| } |
| }; |
| |
| /** |
| * Unloads the Gallery. |
| * @param {boolean} exiting True if the app is exiting. |
| */ |
| Gallery.prototype.onUnload = function(exiting) { |
| if (this.metadataCacheObserverId_ !== null) |
| this.metadataCache_.removeObserver(this.metadataCacheObserverId_); |
| this.volumeManager_.removeEventListener( |
| 'externally-unmounted', this.onExternallyUnmountedBound_); |
| this.slideMode_.onUnload(exiting); |
| }; |
| |
| /** |
| * Initializes DOM UI |
| * @private |
| */ |
| Gallery.prototype.initDom_ = function() { |
| // Initialize the dialog label. |
| cr.ui.dialogs.BaseDialog.OK_LABEL = str('GALLERY_OK_LABEL'); |
| cr.ui.dialogs.BaseDialog.CANCEL_LABEL = str('GALLERY_CANCEL_LABEL'); |
| |
| var content = document.querySelector('#content'); |
| content.addEventListener('click', this.onContentClick_.bind(this)); |
| |
| this.header_ = document.querySelector('#header'); |
| this.toolbar_ = document.querySelector('#toolbar'); |
| |
| var preventDefault = function(event) { event.preventDefault(); }; |
| |
| var minimizeButton = util.createChild(this.header_, |
| 'minimize-button tool dimmable', |
| 'button'); |
| minimizeButton.tabIndex = -1; |
| minimizeButton.addEventListener('click', this.onMinimize_.bind(this)); |
| minimizeButton.addEventListener('mousedown', preventDefault); |
| |
| var maximizeButton = util.createChild(this.header_, |
| 'maximize-button tool dimmable', |
| 'button'); |
| maximizeButton.tabIndex = -1; |
| maximizeButton.addEventListener('click', this.onMaximize_.bind(this)); |
| maximizeButton.addEventListener('mousedown', preventDefault); |
| |
| var closeButton = util.createChild(this.header_, |
| 'close-button tool dimmable', |
| 'button'); |
| closeButton.tabIndex = -1; |
| closeButton.addEventListener('click', this.onClose_.bind(this)); |
| closeButton.addEventListener('mousedown', preventDefault); |
| |
| this.filenameSpacer_ = this.toolbar_.querySelector('.filename-spacer'); |
| this.filenameEdit_ = util.createChild(this.filenameSpacer_, |
| 'namebox', 'input'); |
| |
| this.filenameEdit_.setAttribute('type', 'text'); |
| this.filenameEdit_.addEventListener('blur', |
| this.onFilenameEditBlur_.bind(this)); |
| |
| this.filenameEdit_.addEventListener('focus', |
| this.onFilenameFocus_.bind(this)); |
| |
| this.filenameEdit_.addEventListener('keydown', |
| this.onFilenameEditKeydown_.bind(this)); |
| |
| var middleSpacer = this.filenameSpacer_ = |
| this.toolbar_.querySelector('.middle-spacer'); |
| var buttonSpacer = this.toolbar_.querySelector('button-spacer'); |
| |
| this.prompt_ = new ImageEditor.Prompt(this.container_, strf); |
| |
| this.modeButton_ = this.toolbar_.querySelector('button.mode'); |
| this.modeButton_.addEventListener('click', this.toggleMode_.bind(this, null)); |
| |
| this.mosaicMode_ = new MosaicMode(content, |
| this.dataModel_, |
| this.selectionModel_, |
| this.volumeManager_, |
| this.toggleMode_.bind(this, null)); |
| |
| this.slideMode_ = new SlideMode(this.container_, |
| content, |
| this.toolbar_, |
| this.prompt_, |
| this.dataModel_, |
| this.selectionModel_, |
| this.context_, |
| this.toggleMode_.bind(this), |
| str); |
| |
| this.slideMode_.addEventListener('image-displayed', function() { |
| cr.dispatchSimpleEvent(this, 'image-displayed'); |
| }.bind(this)); |
| this.slideMode_.addEventListener('image-saved', function() { |
| cr.dispatchSimpleEvent(this, 'image-saved'); |
| }.bind(this)); |
| |
| var deleteButton = this.initToolbarButton_('delete', 'GALLERY_DELETE'); |
| deleteButton.addEventListener('click', this.delete_.bind(this)); |
| |
| this.shareButton_ = this.initToolbarButton_('share', 'GALLERY_SHARE'); |
| this.shareButton_.addEventListener( |
| 'click', this.onShareButtonClick_.bind(this)); |
| |
| this.dataModel_.addEventListener('splice', this.onSplice_.bind(this)); |
| this.dataModel_.addEventListener('content', this.onContentChange_.bind(this)); |
| |
| this.selectionModel_.addEventListener('change', this.onSelection_.bind(this)); |
| this.slideMode_.addEventListener('useraction', this.onUserAction_.bind(this)); |
| |
| this.shareDialog_ = new ShareDialog(this.container_); |
| }; |
| |
| /** |
| * Initializes a toolbar button. |
| * |
| * @param {string} className Class to add. |
| * @param {string} title Button title. |
| * @return {!HTMLElement} Newly created button. |
| * @private |
| */ |
| Gallery.prototype.initToolbarButton_ = function(className, title) { |
| var button = this.toolbar_.querySelector('button.' + className); |
| button.title = str(title); |
| return button; |
| }; |
| |
| /** |
| * Loads the content. |
| * |
| * @param {!Array.<Entry>} entries Array of entries. |
| * @param {!Array.<Entry>} selectedEntries Array of selected entries. |
| */ |
| Gallery.prototype.load = function(entries, selectedEntries) { |
| // Obtains max chank size. |
| var maxChunkSize = 20; |
| var volumeInfo = this.volumeManager_.getVolumeInfo(entries[0]); |
| if (volumeInfo && |
| volumeInfo.volumeType === VolumeManagerCommon.VolumeType.MTP) { |
| maxChunkSize = 1; |
| } |
| if (volumeInfo.isReadOnly) |
| this.context_.readonlyDirName = volumeInfo.label; |
| |
| // Make loading list. |
| var entrySet = {}; |
| for (var i = 0; i < entries.length; i++) { |
| var entry = entries[i]; |
| entrySet[entry.toURL()] = { |
| entry: entry, |
| selected: false, |
| index: i |
| }; |
| } |
| for (var i = 0; i < selectedEntries.length; i++) { |
| var entry = selectedEntries[i]; |
| entrySet[entry.toURL()] = { |
| entry: entry, |
| selected: true, |
| index: i |
| }; |
| } |
| var loadingList = []; |
| for (var url in entrySet) { |
| loadingList.push(entrySet[url]); |
| } |
| loadingList = loadingList.sort(function(a, b) { |
| if (a.selected && !b.selected) |
| return -1; |
| else if (!a.selected && b.selected) |
| return 1; |
| else |
| return a.index - b.index; |
| }); |
| |
| // Load entries. |
| // Use the self variable capture-by-closure because it is faster than bind. |
| var self = this; |
| var loadChunk = function(firstChunk) { |
| // Extract chunk. |
| var chunk = loadingList.splice(0, maxChunkSize); |
| if (!chunk.length) |
| return; |
| |
| return new Promise(function(fulfill) { |
| // Obtains metadata for chunk. |
| var entries = chunk.map(function(chunkItem) { |
| return chunkItem.entry; |
| }); |
| self.metadataCache_.get(entries, Gallery.METADATA_TYPE, fulfill); |
| }).then(function(metadataList) { |
| if (chunk.length !== metadataList.length) |
| return Promise.reject('Failed to load metadata.'); |
| |
| // Add items to the model. |
| var items = chunk.map(function(chunkItem, index) { |
| var volumeInfo = self.volumeManager_.getVolumeInfo(chunkItem.entry); |
| var clonedMetadata = MetadataCache.cloneMetadata(metadataList[index]); |
| return new Gallery.Item( |
| chunkItem.entry, |
| clonedMetadata, |
| self.metadataCache_, |
| /* original */ true, |
| /* readonly */ !!(volumeInfo && volumeInfo.isReadOnly)); |
| }); |
| self.dataModel_.push.apply(self.dataModel_, items); |
| |
| // Apply the selection. |
| var selectionUpdated = false; |
| for (var i = 0; i < chunk.length; i++) { |
| if (!chunk[i].selected) |
| continue; |
| var index = self.dataModel_.indexOf(items[i]); |
| if (index < 0) |
| continue; |
| self.selectionModel_.setIndexSelected(index, true); |
| selectionUpdated = true; |
| } |
| if (selectionUpdated) |
| self.onSelection_(); |
| |
| // Init modes after the first chunk is loaded. |
| if (firstChunk) { |
| // Determine the initial mode. |
| var shouldShowMosaic = selectedEntries.length > 1 || |
| (self.context_.pageState && |
| self.context_.pageState.gallery === 'mosaic'); |
| self.setCurrentMode_( |
| shouldShowMosaic ? self.mosaicMode_ : self.slideMode_); |
| |
| // Init mosaic mode. |
| var mosaic = self.mosaicMode_.getMosaic(); |
| mosaic.init(); |
| |
| // Do the initialization for each mode. |
| if (shouldShowMosaic) { |
| mosaic.show(); |
| self.inactivityWatcher_.check(); // Show the toolbar. |
| cr.dispatchSimpleEvent(self, 'loaded'); |
| } else { |
| self.slideMode_.enter( |
| null, |
| function() { |
| // Flash the toolbar briefly to show it is there. |
| self.inactivityWatcher_.kick(Gallery.FIRST_FADE_TIMEOUT); |
| }, |
| function() { |
| cr.dispatchSimpleEvent(self, 'loaded'); |
| }); |
| } |
| } |
| |
| // Continue to load chunks. |
| return loadChunk(/* firstChunk */ false); |
| }); |
| }; |
| loadChunk(/* firstChunk */ true).catch(function(error) { |
| console.error(error.stack || error); |
| }); |
| }; |
| |
| /** |
| * Handles user's 'Close' action. |
| * @private |
| */ |
| Gallery.prototype.onClose_ = function() { |
| this.executeWhenReady(this.context_.onClose); |
| }; |
| |
| /** |
| * Handles user's 'Maximize' action (Escape or a click on the X icon). |
| * @private |
| */ |
| Gallery.prototype.onMaximize_ = function() { |
| this.executeWhenReady(this.context_.onMaximize); |
| }; |
| |
| /** |
| * Handles user's 'Maximize' action (Escape or a click on the X icon). |
| * @private |
| */ |
| Gallery.prototype.onMinimize_ = function() { |
| this.executeWhenReady(this.context_.onMinimize); |
| }; |
| |
| /** |
| * Executes a function when the editor is done with the modifications. |
| * @param {function} callback Function to execute. |
| */ |
| Gallery.prototype.executeWhenReady = function(callback) { |
| this.currentMode_.executeWhenReady(callback); |
| }; |
| |
| /** |
| * @return {Object} File browser private API. |
| */ |
| Gallery.getFileBrowserPrivate = function() { |
| return chrome.fileBrowserPrivate || window.top.chrome.fileBrowserPrivate; |
| }; |
| |
| /** |
| * @return {boolean} True if some tool is currently active. |
| */ |
| Gallery.prototype.hasActiveTool = function() { |
| return (this.currentMode_ && this.currentMode_.hasActiveTool()) || |
| this.isRenaming_(); |
| }; |
| |
| /** |
| * External user action event handler. |
| * @private |
| */ |
| Gallery.prototype.onUserAction_ = function() { |
| // Show the toolbar and hide it after the default timeout. |
| this.inactivityWatcher_.kick(); |
| }; |
| |
| /** |
| * Sets the current mode, update the UI. |
| * @param {Object} mode Current mode. |
| * @private |
| */ |
| Gallery.prototype.setCurrentMode_ = function(mode) { |
| if (mode !== this.slideMode_ && mode !== this.mosaicMode_) |
| console.error('Invalid Gallery mode'); |
| |
| this.currentMode_ = mode; |
| this.container_.setAttribute('mode', this.currentMode_.getName()); |
| this.updateSelectionAndState_(); |
| this.updateButtons_(); |
| }; |
| |
| /** |
| * Mode toggle event handler. |
| * @param {function=} opt_callback Callback. |
| * @param {Event=} opt_event Event that caused this call. |
| * @private |
| */ |
| Gallery.prototype.toggleMode_ = function(opt_callback, opt_event) { |
| if (!this.modeButton_) |
| return; |
| |
| if (this.changingMode_) // Do not re-enter while changing the mode. |
| return; |
| |
| if (opt_event) |
| this.onUserAction_(); |
| |
| this.changingMode_ = true; |
| |
| var onModeChanged = function() { |
| this.changingMode_ = false; |
| if (opt_callback) opt_callback(); |
| }.bind(this); |
| |
| var tileIndex = Math.max(0, this.selectionModel_.selectedIndex); |
| |
| var mosaic = this.mosaicMode_.getMosaic(); |
| var tileRect = mosaic.getTileRect(tileIndex); |
| |
| if (this.currentMode_ === this.slideMode_) { |
| this.setCurrentMode_(this.mosaicMode_); |
| mosaic.transform( |
| tileRect, this.slideMode_.getSelectedImageRect(), true /* instant */); |
| this.slideMode_.leave( |
| tileRect, |
| function() { |
| // Animate back to normal position. |
| mosaic.transform(); |
| mosaic.show(); |
| onModeChanged(); |
| }.bind(this)); |
| } else { |
| this.setCurrentMode_(this.slideMode_); |
| this.slideMode_.enter( |
| tileRect, |
| function() { |
| // Animate to zoomed position. |
| mosaic.transform(tileRect, this.slideMode_.getSelectedImageRect()); |
| mosaic.hide(); |
| }.bind(this), |
| onModeChanged); |
| } |
| }; |
| |
| /** |
| * Deletes the selected items. |
| * @private |
| */ |
| Gallery.prototype.delete_ = function() { |
| this.onUserAction_(); |
| |
| // Clone the sorted selected indexes array. |
| var indexesToRemove = this.selectionModel_.selectedIndexes.slice(); |
| if (!indexesToRemove.length) |
| return; |
| |
| /* TODO(dgozman): Implement Undo delete, Remove the confirmation dialog. */ |
| |
| var itemsToRemove = this.getSelectedItems(); |
| var plural = itemsToRemove.length > 1; |
| var param = plural ? itemsToRemove.length : itemsToRemove[0].getFileName(); |
| |
| function deleteNext() { |
| if (!itemsToRemove.length) |
| return; // All deleted. |
| |
| var entry = itemsToRemove.pop().getEntry(); |
| entry.remove(deleteNext, function() { |
| util.flog('Error deleting: ' + entry.name, deleteNext); |
| }); |
| } |
| |
| // Prevent the Gallery from handling Esc and Enter. |
| this.document_.body.removeEventListener('keydown', this.keyDownBound_); |
| var restoreListener = function() { |
| this.document_.body.addEventListener('keydown', this.keyDownBound_); |
| }.bind(this); |
| |
| |
| var confirm = new cr.ui.dialogs.ConfirmDialog(this.container_); |
| confirm.setOkLabel(str('DELETE_BUTTON_LABEL')); |
| confirm.show(strf(plural ? |
| 'GALLERY_CONFIRM_DELETE_SOME' : 'GALLERY_CONFIRM_DELETE_ONE', param), |
| function() { |
| restoreListener(); |
| this.selectionModel_.unselectAll(); |
| this.selectionModel_.leadIndex = -1; |
| // Remove items from the data model, starting from the highest index. |
| while (indexesToRemove.length) |
| this.dataModel_.splice(indexesToRemove.pop(), 1); |
| // Delete actual files. |
| deleteNext(); |
| }.bind(this), |
| function() { |
| // Restore the listener after a timeout so that ESC is processed. |
| setTimeout(restoreListener, 0); |
| }); |
| }; |
| |
| /** |
| * @return {Array.<Gallery.Item>} Current selection. |
| */ |
| Gallery.prototype.getSelectedItems = function() { |
| return this.selectionModel_.selectedIndexes.map( |
| this.dataModel_.item.bind(this.dataModel_)); |
| }; |
| |
| /** |
| * @return {Array.<Entry>} Array of currently selected entries. |
| */ |
| Gallery.prototype.getSelectedEntries = function() { |
| return this.selectionModel_.selectedIndexes.map(function(index) { |
| return this.dataModel_.item(index).getEntry(); |
| }.bind(this)); |
| }; |
| |
| /** |
| * @return {?Gallery.Item} Current single selection. |
| */ |
| Gallery.prototype.getSingleSelectedItem = function() { |
| var items = this.getSelectedItems(); |
| if (items.length > 1) { |
| console.error('Unexpected multiple selection'); |
| return null; |
| } |
| return items[0]; |
| }; |
| |
| /** |
| * Selection change event handler. |
| * @private |
| */ |
| Gallery.prototype.onSelection_ = function() { |
| this.updateSelectionAndState_(); |
| }; |
| |
| /** |
| * Data model splice event handler. |
| * @private |
| */ |
| Gallery.prototype.onSplice_ = function() { |
| this.selectionModel_.adjustLength(this.dataModel_.length); |
| }; |
| |
| /** |
| * Content change event handler. |
| * @param {Event} event Event. |
| * @private |
| */ |
| Gallery.prototype.onContentChange_ = function(event) { |
| var index = this.dataModel_.indexOf(event.item); |
| if (index !== this.selectionModel_.selectedIndex) |
| console.error('Content changed for unselected item'); |
| this.updateSelectionAndState_(); |
| }; |
| |
| /** |
| * Keydown handler. |
| * |
| * @param {Event} event Event. |
| * @private |
| */ |
| Gallery.prototype.onKeyDown_ = function(event) { |
| if (this.currentMode_.onKeyDown(event)) |
| return; |
| |
| switch (util.getKeyModifiers(event) + event.keyIdentifier) { |
| case 'U+0008': // Backspace. |
| // The default handler would call history.back and close the Gallery. |
| event.preventDefault(); |
| break; |
| |
| case 'U+004D': // 'm' switches between Slide and Mosaic mode. |
| this.toggleMode_(null, event); |
| break; |
| |
| case 'U+0056': // 'v' |
| case 'MediaPlayPause': |
| this.slideMode_.startSlideshow(SlideMode.SLIDESHOW_INTERVAL_FIRST, event); |
| break; |
| |
| case 'U+007F': // Delete |
| case 'Shift-U+0033': // Shift+'3' (Delete key might be missing). |
| case 'U+0044': // 'd' |
| this.delete_(); |
| break; |
| } |
| }; |
| |
| // Name box and rename support. |
| |
| /** |
| * Updates the UI related to the selected item and the persistent state. |
| * |
| * @private |
| */ |
| Gallery.prototype.updateSelectionAndState_ = function() { |
| var numSelectedItems = this.selectionModel_.selectedIndexes.length; |
| var selectedEntryURL = null; |
| |
| // If it's selecting something, update the variable values. |
| if (numSelectedItems) { |
| // Obtains selected item. |
| var selectedItem = |
| this.dataModel_.item(this.selectionModel_.selectedIndex); |
| this.selectedEntry_ = selectedItem.getEntry(); |
| selectedEntryURL = this.selectedEntry_.toURL(); |
| |
| // Update cache. |
| selectedItem.touch(); |
| this.dataModel_.evictCache(); |
| |
| // Update the title and the display name. |
| if (numSelectedItems === 1) { |
| document.title = this.selectedEntry_.name; |
| this.filenameEdit_.disabled = selectedItem.isReadOnly(); |
| this.filenameEdit_.value = |
| ImageUtil.getDisplayNameFromName(this.selectedEntry_.name); |
| this.shareButton_.hidden = !selectedItem.isOnDrive(); |
| } else { |
| if (this.context_.curDirEntry) { |
| // If the Gallery was opened on search results the search query will not |
| // be recorded in the app state and the relaunch will just open the |
| // gallery in the curDirEntry directory. |
| document.title = this.context_.curDirEntry.name; |
| } else { |
| document.title = ''; |
| } |
| this.filenameEdit_.disabled = true; |
| this.filenameEdit_.value = |
| strf('GALLERY_ITEMS_SELECTED', numSelectedItems); |
| this.shareButton_.hidden = true; |
| } |
| } else { |
| document.title = ''; |
| this.filenameEdit_.value = ''; |
| this.shareButton_.hidden = true; |
| } |
| |
| util.updateAppState( |
| null, // Keep the current directory. |
| selectedEntryURL, // Update the selection. |
| {gallery: (this.currentMode_ === this.mosaicMode_ ? 'mosaic' : 'slide')}); |
| }; |
| |
| /** |
| * Click event handler on filename edit box |
| * @private |
| */ |
| Gallery.prototype.onFilenameFocus_ = function() { |
| ImageUtil.setAttribute(this.filenameSpacer_, 'renaming', true); |
| this.filenameEdit_.originalValue = this.filenameEdit_.value; |
| setTimeout(this.filenameEdit_.select.bind(this.filenameEdit_), 0); |
| this.onUserAction_(); |
| }; |
| |
| /** |
| * Blur event handler on filename edit box. |
| * |
| * @param {Event} event Blur event. |
| * @return {boolean} if default action should be prevented. |
| * @private |
| */ |
| Gallery.prototype.onFilenameEditBlur_ = function(event) { |
| var item = this.getSingleSelectedItem(); |
| if (item) { |
| var oldEntry = item.getEntry(); |
| |
| item.rename(this.filenameEdit_.value).then(function() { |
| var event = new Event('content'); |
| event.item = item; |
| event.oldEntry = oldEntry; |
| event.metadata = null; // Metadata unchanged. |
| this.dataModel_.dispatchEvent(event); |
| }.bind(this), function(error) { |
| if (error === 'NOT_CHANGED') |
| return; |
| this.filenameEdit_.value = |
| ImageUtil.getDisplayNameFromName(item.getEntry().name); |
| this.filenameEdit_.focus(); |
| if (typeof error === 'string') |
| this.prompt_.showStringAt('center', error, 5000); |
| else |
| return Promise.reject(error); |
| }.bind(this)).catch(function(error) { |
| console.error(error.stack || error); |
| }); |
| } |
| |
| ImageUtil.setAttribute(this.filenameSpacer_, 'renaming', false); |
| this.onUserAction_(); |
| }; |
| |
| /** |
| * Keydown event handler on filename edit box |
| * @private |
| */ |
| Gallery.prototype.onFilenameEditKeydown_ = function() { |
| switch (event.keyCode) { |
| case 27: // Escape |
| this.filenameEdit_.value = this.filenameEdit_.originalValue; |
| this.filenameEdit_.blur(); |
| break; |
| |
| case 13: // Enter |
| this.filenameEdit_.blur(); |
| break; |
| } |
| event.stopPropagation(); |
| }; |
| |
| /** |
| * @return {boolean} True if file renaming is currently in progress. |
| * @private |
| */ |
| Gallery.prototype.isRenaming_ = function() { |
| return this.filenameSpacer_.hasAttribute('renaming'); |
| }; |
| |
| /** |
| * Content area click handler. |
| * @private |
| */ |
| Gallery.prototype.onContentClick_ = function() { |
| this.filenameEdit_.blur(); |
| }; |
| |
| /** |
| * Share button handler. |
| * @private |
| */ |
| Gallery.prototype.onShareButtonClick_ = function() { |
| var item = this.getSingleSelectedItem(); |
| if (!item) |
| return; |
| this.shareDialog_.show(item.getEntry(), function() {}); |
| }; |
| |
| /** |
| * Updates thumbnails. |
| * @private |
| */ |
| Gallery.prototype.updateThumbnails_ = function() { |
| if (this.currentMode_ === this.slideMode_) |
| this.slideMode_.updateThumbnails(); |
| |
| if (this.mosaicMode_) { |
| var mosaic = this.mosaicMode_.getMosaic(); |
| if (mosaic.isInitialized()) |
| mosaic.reload(); |
| } |
| }; |
| |
| /** |
| * Updates buttons. |
| * @private |
| */ |
| Gallery.prototype.updateButtons_ = function() { |
| if (this.modeButton_) { |
| var oppositeMode = |
| this.currentMode_ === this.slideMode_ ? this.mosaicMode_ : |
| this.slideMode_; |
| this.modeButton_.title = str(oppositeMode.getTitle()); |
| } |
| }; |
| |
| /** |
| * Singleton gallery. |
| * @type {Gallery} |
| */ |
| var gallery = null; |
| |
| /** |
| * Initialize the window. |
| * @param {Object} backgroundComponents Background components. |
| */ |
| window.initialize = function(backgroundComponents) { |
| window.loadTimeData.data = backgroundComponents.stringData; |
| gallery = new Gallery(backgroundComponents.volumeManager); |
| }; |
| |
| /** |
| * Loads entries. |
| */ |
| window.loadEntries = function(entries, selectedEntries) { |
| gallery.load(entries, selectedEntries); |
| }; |