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| 1 // Copyright (c) 2012 The Chromium Authors. All rights reserved. | |
| 2 // Use of this source code is governed by a BSD-style license that can be | |
| 3 // found in the LICENSE file. | |
| 4 | |
| 5 'use strict'; | |
| 6 | |
| 7 /** | |
| 8 * Called from the main frame when unloading. | |
| 9 * @return {string?} User-visible message on null if it is OK to close. | |
| 10 */ | |
| 11 function beforeunload() { return Gallery.instance.onBeforeUnload() } | |
| 12 | |
| 13 /** | |
| 14 * Called from the main frame when unloading. | |
| 15 * @param {boolean=} opt_exiting True if the app is exiting. | |
| 16 */ | |
| 17 function unload(opt_exiting) { Gallery.instance.onUnload(opt_exiting) } | |
| 18 | |
| 19 /** | |
| 20 * Gallery for viewing and editing image files. | |
| 21 * | |
| 22 * @param {Object} context Object containing the following: | |
| 23 * {function(string)} onNameChange Called every time a selected | |
| 24 * item name changes (on rename and on selection change). | |
| 25 * {AppWindow} appWindow | |
| 26 * {function(string)} onBack | |
| 27 * {function()} onClose | |
| 28 * {function()} onMaximize | |
| 29 * {MetadataCache} metadataCache | |
| 30 * {Array.<Object>} shareActions | |
| 31 * {string} readonlyDirName Directory name for readonly warning or null. | |
| 32 * {DirEntry} saveDirEntry Directory to save to. | |
| 33 * {function(string)} displayStringFunction. | |
| 34 * @param {VolumeManagerWrapper} volumeManager The VolumeManager instance of | |
| 35 * the system. | |
| 36 * @class | |
| 37 * @constructor | |
| 38 */ | |
| 39 function Gallery(context, volumeManager) { | |
| 40 this.container_ = document.querySelector('.gallery'); | |
| 41 this.document_ = document; | |
| 42 this.context_ = context; | |
| 43 this.metadataCache_ = context.metadataCache; | |
| 44 this.volumeManager_ = volumeManager; | |
| 45 | |
| 46 this.dataModel_ = new cr.ui.ArrayDataModel([]); | |
| 47 this.selectionModel_ = new cr.ui.ListSelectionModel(); | |
| 48 this.displayStringFunction_ = context.displayStringFunction; | |
| 49 | |
| 50 this.initDom_(); | |
| 51 this.initListeners_(); | |
| 52 } | |
| 53 | |
| 54 /** | |
| 55 * Gallery extends cr.EventTarget. | |
| 56 */ | |
| 57 Gallery.prototype.__proto__ = cr.EventTarget.prototype; | |
| 58 | |
| 59 /** | |
| 60 * Create and initialize a Gallery object based on a context. | |
| 61 * | |
| 62 * @param {Object} context Gallery context. | |
| 63 * @param {VolumeManagerWrapper} volumeManager VolumeManager of the system. | |
| 64 * @param {Array.<string>} urls Array of urls. | |
| 65 * @param {Array.<string>} selectedUrls Array of selected urls. | |
| 66 */ | |
| 67 Gallery.open = function(context, volumeManager, urls, selectedUrls) { | |
| 68 Gallery.instance = new Gallery(context, volumeManager); | |
| 69 Gallery.instance.load(urls, selectedUrls); | |
| 70 }; | |
| 71 | |
| 72 /** | |
| 73 * Tools fade-out timeout im milliseconds. | |
| 74 * @const | |
| 75 * @type {number} | |
| 76 */ | |
| 77 Gallery.FADE_TIMEOUT = 3000; | |
| 78 | |
| 79 /** | |
| 80 * First time tools fade-out timeout im milliseconds. | |
| 81 * @const | |
| 82 * @type {number} | |
| 83 */ | |
| 84 Gallery.FIRST_FADE_TIMEOUT = 1000; | |
| 85 | |
| 86 /** | |
| 87 * Time until mosaic is initialized in the background. Used to make gallery | |
| 88 * in the slide mode load faster. In miiliseconds. | |
| 89 * @const | |
| 90 * @type {number} | |
| 91 */ | |
| 92 Gallery.MOSAIC_BACKGROUND_INIT_DELAY = 1000; | |
| 93 | |
| 94 /** | |
| 95 * Types of metadata Gallery uses (to query the metadata cache). | |
| 96 * @const | |
| 97 * @type {string} | |
| 98 */ | |
| 99 Gallery.METADATA_TYPE = 'thumbnail|filesystem|media|streaming|drive'; | |
| 100 | |
| 101 /** | |
| 102 * Initialize listeners. | |
| 103 * @private | |
| 104 */ | |
| 105 Gallery.prototype.initListeners_ = function() { | |
| 106 this.document_.oncontextmenu = function(e) { e.preventDefault(); }; | |
| 107 this.keyDownBound_ = this.onKeyDown_.bind(this); | |
| 108 this.document_.body.addEventListener('keydown', this.keyDownBound_); | |
| 109 | |
| 110 this.inactivityWatcher_ = new MouseInactivityWatcher( | |
| 111 this.container_, Gallery.FADE_TIMEOUT, this.hasActiveTool.bind(this)); | |
| 112 | |
| 113 // Search results may contain files from different subdirectories so | |
| 114 // the observer is not going to work. | |
| 115 if (!this.context_.searchResults && this.context_.curDirEntry) { | |
| 116 this.thumbnailObserverId_ = this.metadataCache_.addObserver( | |
| 117 this.context_.curDirEntry, | |
| 118 MetadataCache.CHILDREN, | |
| 119 'thumbnail', | |
| 120 this.updateThumbnails_.bind(this)); | |
| 121 } | |
| 122 | |
| 123 this.volumeManager_.addEventListener('externally-unmounted', | |
| 124 this.onExternallyUnmounted_.bind(this)); | |
| 125 }; | |
| 126 | |
| 127 /** | |
| 128 * Closes gallery when a volume containing the selected item is unmounted. | |
| 129 * @param {Event} event The unmount event. | |
| 130 * @private | |
| 131 */ | |
| 132 Gallery.prototype.onExternallyUnmounted_ = function(event) { | |
| 133 if (!this.selectedItemFilesystemPath_) | |
| 134 return; | |
| 135 if (this.selectedItemFilesystemPath_.indexOf(event.mountPath) == 0) | |
| 136 this.onBack_(); | |
| 137 }; | |
| 138 | |
| 139 /** | |
| 140 * Beforeunload handler. | |
| 141 * @return {string?} User-visible message on null if it is OK to close. | |
| 142 */ | |
| 143 Gallery.prototype.onBeforeUnload = function() { | |
| 144 return this.slideMode_.onBeforeUnload(); | |
| 145 }; | |
| 146 | |
| 147 /** | |
| 148 * Unload the Gallery. | |
| 149 * @param {boolean} exiting True if the app is exiting. | |
| 150 */ | |
| 151 Gallery.prototype.onUnload = function(exiting) { | |
| 152 if (!this.context_.searchResults) { | |
| 153 this.metadataCache_.removeObserver(this.thumbnailObserverId_); | |
| 154 } | |
| 155 this.slideMode_.onUnload(exiting); | |
| 156 }; | |
| 157 | |
| 158 /** | |
| 159 * Initializes DOM UI | |
| 160 * @private | |
| 161 */ | |
| 162 Gallery.prototype.initDom_ = function() { | |
| 163 var content = util.createChild(this.container_, 'content'); | |
| 164 content.addEventListener('click', this.onContentClick_.bind(this)); | |
| 165 | |
| 166 this.header_ = util.createChild(this.container_, 'header tool dimmable'); | |
| 167 this.toolbar_ = util.createChild(this.container_, 'toolbar tool dimmable'); | |
| 168 | |
| 169 var backButton = util.createChild(this.container_, | |
| 170 'back-button tool dimmable'); | |
| 171 util.createChild(backButton); | |
| 172 backButton.addEventListener('click', this.onBack_.bind(this)); | |
| 173 | |
| 174 var preventDefault = function(event) { event.preventDefault(); }; | |
| 175 | |
| 176 var maximizeButton = util.createChild(this.header_, | |
| 177 'maximize-button tool dimmable', | |
| 178 'button'); | |
| 179 maximizeButton.tabIndex = -1; | |
| 180 maximizeButton.addEventListener('click', this.onMaximize_.bind(this)); | |
| 181 maximizeButton.addEventListener('mousedown', preventDefault); | |
| 182 | |
| 183 var closeButton = util.createChild(this.header_, | |
| 184 'close-button tool dimmable', | |
| 185 'button'); | |
| 186 closeButton.tabIndex = -1; | |
| 187 closeButton.addEventListener('click', this.onClose_.bind(this)); | |
| 188 closeButton.addEventListener('mousedown', preventDefault); | |
| 189 | |
| 190 this.filenameSpacer_ = util.createChild(this.toolbar_, 'filename-spacer'); | |
| 191 this.filenameEdit_ = util.createChild(this.filenameSpacer_, | |
| 192 'namebox', 'input'); | |
| 193 | |
| 194 this.filenameEdit_.setAttribute('type', 'text'); | |
| 195 this.filenameEdit_.addEventListener('blur', | |
| 196 this.onFilenameEditBlur_.bind(this)); | |
| 197 | |
| 198 this.filenameEdit_.addEventListener('focus', | |
| 199 this.onFilenameFocus_.bind(this)); | |
| 200 | |
| 201 this.filenameEdit_.addEventListener('keydown', | |
| 202 this.onFilenameEditKeydown_.bind(this)); | |
| 203 | |
| 204 util.createChild(this.toolbar_, 'button-spacer'); | |
| 205 | |
| 206 this.prompt_ = new ImageEditor.Prompt( | |
| 207 this.container_, this.displayStringFunction_); | |
| 208 | |
| 209 this.modeButton_ = util.createChild(this.toolbar_, 'button mode', 'button'); | |
| 210 this.modeButton_.addEventListener('click', | |
| 211 this.toggleMode_.bind(this, null)); | |
| 212 | |
| 213 this.mosaicMode_ = new MosaicMode(content, | |
| 214 this.dataModel_, | |
| 215 this.selectionModel_, | |
| 216 this.metadataCache_, | |
| 217 this.toggleMode_.bind(this, null)); | |
| 218 | |
| 219 this.slideMode_ = new SlideMode(this.container_, | |
| 220 content, | |
| 221 this.toolbar_, | |
| 222 this.prompt_, | |
| 223 this.dataModel_, | |
| 224 this.selectionModel_, | |
| 225 this.context_, | |
| 226 this.toggleMode_.bind(this), | |
| 227 this.displayStringFunction_); | |
| 228 | |
| 229 this.slideMode_.addEventListener('image-displayed', function() { | |
| 230 cr.dispatchSimpleEvent(this, 'image-displayed'); | |
| 231 }.bind(this)); | |
| 232 this.slideMode_.addEventListener('image-saved', function() { | |
| 233 cr.dispatchSimpleEvent(this, 'image-saved'); | |
| 234 }.bind(this)); | |
| 235 | |
| 236 var deleteButton = this.createToolbarButton_('delete', 'GALLERY_DELETE'); | |
| 237 deleteButton.addEventListener('click', this.delete_.bind(this)); | |
| 238 | |
| 239 this.shareButton_ = this.createToolbarButton_('share', 'GALLERY_SHARE'); | |
| 240 this.shareButton_.setAttribute('disabled', ''); | |
| 241 this.shareButton_.addEventListener('click', this.toggleShare_.bind(this)); | |
| 242 | |
| 243 this.shareMenu_ = util.createChild(this.container_, 'share-menu'); | |
| 244 this.shareMenu_.hidden = true; | |
| 245 util.createChild(this.shareMenu_, 'bubble-point'); | |
| 246 | |
| 247 this.dataModel_.addEventListener('splice', this.onSplice_.bind(this)); | |
| 248 this.dataModel_.addEventListener('content', this.onContentChange_.bind(this)); | |
| 249 | |
| 250 this.selectionModel_.addEventListener('change', this.onSelection_.bind(this)); | |
| 251 this.slideMode_.addEventListener('useraction', this.onUserAction_.bind(this)); | |
| 252 }; | |
| 253 | |
| 254 /** | |
| 255 * Creates toolbar button. | |
| 256 * | |
| 257 * @param {string} className Class to add. | |
| 258 * @param {string} title Button title. | |
| 259 * @return {HTMLElement} Newly created button. | |
| 260 * @private | |
| 261 */ | |
| 262 Gallery.prototype.createToolbarButton_ = function(className, title) { | |
| 263 var button = util.createChild(this.toolbar_, className, 'button'); | |
| 264 button.title = this.displayStringFunction_(title); | |
| 265 return button; | |
| 266 }; | |
| 267 | |
| 268 /** | |
| 269 * Load the content. | |
| 270 * | |
| 271 * @param {Array.<string>} urls Array of urls. | |
| 272 * @param {Array.<string>} selectedUrls Array of selected urls. | |
| 273 */ | |
| 274 Gallery.prototype.load = function(urls, selectedUrls) { | |
| 275 var items = []; | |
| 276 for (var index = 0; index < urls.length; ++index) { | |
| 277 items.push(new Gallery.Item(urls[index])); | |
| 278 } | |
| 279 this.dataModel_.push.apply(this.dataModel_, items); | |
| 280 | |
| 281 this.selectionModel_.adjustLength(this.dataModel_.length); | |
| 282 | |
| 283 for (var i = 0; i != selectedUrls.length; i++) { | |
| 284 var selectedIndex = urls.indexOf(selectedUrls[i]); | |
| 285 if (selectedIndex >= 0) | |
| 286 this.selectionModel_.setIndexSelected(selectedIndex, true); | |
| 287 else | |
| 288 console.error('Cannot select ' + selectedUrls[i]); | |
| 289 } | |
| 290 | |
| 291 if (this.selectionModel_.selectedIndexes.length == 0) | |
| 292 this.onSelection_(); | |
| 293 | |
| 294 var mosaic = this.mosaicMode_ && this.mosaicMode_.getMosaic(); | |
| 295 | |
| 296 // Mosaic view should show up if most of the selected files are images. | |
| 297 var imagesCount = 0; | |
| 298 for (var i = 0; i != selectedUrls.length; i++) { | |
| 299 if (FileType.getMediaType(selectedUrls[i]) == 'image') | |
| 300 imagesCount++; | |
| 301 } | |
| 302 var mostlyImages = imagesCount > (selectedUrls.length / 2.0); | |
| 303 | |
| 304 var forcedMosaic = (this.context_.pageState && | |
| 305 this.context_.pageState.gallery == 'mosaic'); | |
| 306 | |
| 307 var showMosaic = (mostlyImages && selectedUrls.length > 1) || forcedMosaic; | |
| 308 if (mosaic && showMosaic) { | |
| 309 this.setCurrentMode_(this.mosaicMode_); | |
| 310 mosaic.init(); | |
| 311 mosaic.show(); | |
| 312 this.inactivityWatcher_.check(); // Show the toolbar. | |
| 313 cr.dispatchSimpleEvent(this, 'loaded'); | |
| 314 } else { | |
| 315 this.setCurrentMode_(this.slideMode_); | |
| 316 var maybeLoadMosaic = function() { | |
| 317 if (mosaic) | |
| 318 mosaic.init(); | |
| 319 cr.dispatchSimpleEvent(this, 'loaded'); | |
| 320 }.bind(this); | |
| 321 /* TODO: consider nice blow-up animation for the first image */ | |
| 322 this.slideMode_.enter(null, function() { | |
| 323 // Flash the toolbar briefly to show it is there. | |
| 324 this.inactivityWatcher_.kick(Gallery.FIRST_FADE_TIMEOUT); | |
| 325 }.bind(this), | |
| 326 maybeLoadMosaic); | |
| 327 } | |
| 328 }; | |
| 329 | |
| 330 /** | |
| 331 * Close the Gallery and go to Files.app. | |
| 332 * @private | |
| 333 */ | |
| 334 Gallery.prototype.back_ = function() { | |
| 335 if (util.isFullScreen(this.context_.appWindow)) { | |
| 336 util.toggleFullScreen(this.context_.appWindow, | |
| 337 false); // Leave the full screen mode. | |
| 338 } | |
| 339 this.context_.onBack(this.getSelectedUrls()); | |
| 340 }; | |
| 341 | |
| 342 /** | |
| 343 * Handle user's 'Back' action (Escape or a click on the X icon). | |
| 344 * @private | |
| 345 */ | |
| 346 Gallery.prototype.onBack_ = function() { | |
| 347 this.executeWhenReady(this.back_.bind(this)); | |
| 348 }; | |
| 349 | |
| 350 /** | |
| 351 * Handle user's 'Close' action. | |
| 352 * @private | |
| 353 */ | |
| 354 Gallery.prototype.onClose_ = function() { | |
| 355 this.executeWhenReady(this.context_.onClose); | |
| 356 }; | |
| 357 | |
| 358 /** | |
| 359 * Handle user's 'Maximize' action (Escape or a click on the X icon). | |
| 360 * @private | |
| 361 */ | |
| 362 Gallery.prototype.onMaximize_ = function() { | |
| 363 this.executeWhenReady(this.context_.onMaximize); | |
| 364 }; | |
| 365 | |
| 366 /** | |
| 367 * Execute a function when the editor is done with the modifications. | |
| 368 * @param {function} callback Function to execute. | |
| 369 */ | |
| 370 Gallery.prototype.executeWhenReady = function(callback) { | |
| 371 this.currentMode_.executeWhenReady(callback); | |
| 372 }; | |
| 373 | |
| 374 /** | |
| 375 * @return {Object} File browser private API. | |
| 376 */ | |
| 377 Gallery.getFileBrowserPrivate = function() { | |
| 378 return chrome.fileBrowserPrivate || window.top.chrome.fileBrowserPrivate; | |
| 379 }; | |
| 380 | |
| 381 /** | |
| 382 * @return {boolean} True if some tool is currently active. | |
| 383 */ | |
| 384 Gallery.prototype.hasActiveTool = function() { | |
| 385 return this.currentMode_.hasActiveTool() || | |
| 386 this.isSharing_() || this.isRenaming_(); | |
| 387 }; | |
| 388 | |
| 389 /** | |
| 390 * External user action event handler. | |
| 391 * @private | |
| 392 */ | |
| 393 Gallery.prototype.onUserAction_ = function() { | |
| 394 this.closeShareMenu_(); | |
| 395 // Show the toolbar and hide it after the default timeout. | |
| 396 this.inactivityWatcher_.kick(); | |
| 397 }; | |
| 398 | |
| 399 /** | |
| 400 * Set the current mode, update the UI. | |
| 401 * @param {Object} mode Current mode. | |
| 402 * @private | |
| 403 */ | |
| 404 Gallery.prototype.setCurrentMode_ = function(mode) { | |
| 405 if (mode != this.slideMode_ && mode != this.mosaicMode_) | |
| 406 console.error('Invalid Gallery mode'); | |
| 407 | |
| 408 this.currentMode_ = mode; | |
| 409 this.container_.setAttribute('mode', this.currentMode_.getName()); | |
| 410 this.updateSelectionAndState_(); | |
| 411 this.updateButtons_(); | |
| 412 }; | |
| 413 | |
| 414 /** | |
| 415 * Mode toggle event handler. | |
| 416 * @param {function=} opt_callback Callback. | |
| 417 * @param {Event=} opt_event Event that caused this call. | |
| 418 * @private | |
| 419 */ | |
| 420 Gallery.prototype.toggleMode_ = function(opt_callback, opt_event) { | |
| 421 if (!this.modeButton_) | |
| 422 return; | |
| 423 | |
| 424 if (this.changingMode_) // Do not re-enter while changing the mode. | |
| 425 return; | |
| 426 | |
| 427 if (opt_event) | |
| 428 this.onUserAction_(); | |
| 429 | |
| 430 this.changingMode_ = true; | |
| 431 | |
| 432 var onModeChanged = function() { | |
| 433 this.changingMode_ = false; | |
| 434 if (opt_callback) opt_callback(); | |
| 435 }.bind(this); | |
| 436 | |
| 437 var tileIndex = Math.max(0, this.selectionModel_.selectedIndex); | |
| 438 | |
| 439 var mosaic = this.mosaicMode_.getMosaic(); | |
| 440 var tileRect = mosaic.getTileRect(tileIndex); | |
| 441 | |
| 442 if (this.currentMode_ == this.slideMode_) { | |
| 443 this.setCurrentMode_(this.mosaicMode_); | |
| 444 mosaic.transform( | |
| 445 tileRect, this.slideMode_.getSelectedImageRect(), true /* instant */); | |
| 446 this.slideMode_.leave(tileRect, | |
| 447 function() { | |
| 448 // Animate back to normal position. | |
| 449 mosaic.transform(); | |
| 450 mosaic.show(); | |
| 451 onModeChanged(); | |
| 452 }.bind(this)); | |
| 453 } else { | |
| 454 this.setCurrentMode_(this.slideMode_); | |
| 455 this.slideMode_.enter(tileRect, | |
| 456 function() { | |
| 457 // Animate to zoomed position. | |
| 458 mosaic.transform(tileRect, this.slideMode_.getSelectedImageRect()); | |
| 459 mosaic.hide(); | |
| 460 }.bind(this), | |
| 461 onModeChanged); | |
| 462 } | |
| 463 }; | |
| 464 | |
| 465 /** | |
| 466 * Deletes the selected items. | |
| 467 * @private | |
| 468 */ | |
| 469 Gallery.prototype.delete_ = function() { | |
| 470 this.onUserAction_(); | |
| 471 | |
| 472 // Clone the sorted selected indexes array. | |
| 473 var indexesToRemove = this.selectionModel_.selectedIndexes.slice(); | |
| 474 if (!indexesToRemove.length) | |
| 475 return; | |
| 476 | |
| 477 /* TODO(dgozman): Implement Undo delete, Remove the confirmation dialog. */ | |
| 478 | |
| 479 var itemsToRemove = this.getSelectedItems(); | |
| 480 var plural = itemsToRemove.length > 1; | |
| 481 var param = plural ? itemsToRemove.length : itemsToRemove[0].getFileName(); | |
| 482 | |
| 483 function deleteNext() { | |
| 484 if (!itemsToRemove.length) | |
| 485 return; // All deleted. | |
| 486 | |
| 487 var url = itemsToRemove.pop().getUrl(); | |
| 488 webkitResolveLocalFileSystemURL(url, | |
| 489 function(entry) { | |
| 490 entry.remove(deleteNext, | |
| 491 util.flog('Error deleting ' + url, deleteNext)); | |
| 492 }, | |
| 493 util.flog('Error resolving ' + url, deleteNext)); | |
| 494 } | |
| 495 | |
| 496 // Prevent the Gallery from handling Esc and Enter. | |
| 497 this.document_.body.removeEventListener('keydown', this.keyDownBound_); | |
| 498 var restoreListener = function() { | |
| 499 this.document_.body.addEventListener('keydown', this.keyDownBound_); | |
| 500 }.bind(this); | |
| 501 | |
| 502 cr.ui.dialogs.BaseDialog.OK_LABEL = this.displayStringFunction_( | |
| 503 'GALLERY_OK_LABEL'); | |
| 504 cr.ui.dialogs.BaseDialog.CANCEL_LABEL = | |
| 505 this.displayStringFunction_('GALLERY_CANCEL_LABEL'); | |
| 506 var confirm = new cr.ui.dialogs.ConfirmDialog(this.container_); | |
| 507 confirm.show( | |
| 508 this.displayStringFunction_(plural ? 'GALLERY_CONFIRM_DELETE_SOME' : | |
| 509 'GALLERY_CONFIRM_DELETE_ONE', param), | |
| 510 function() { | |
| 511 restoreListener(); | |
| 512 this.selectionModel_.unselectAll(); | |
| 513 this.selectionModel_.leadIndex = -1; | |
| 514 // Remove items from the data model, starting from the highest index. | |
| 515 while (indexesToRemove.length) | |
| 516 this.dataModel_.splice(indexesToRemove.pop(), 1); | |
| 517 // Delete actual files. | |
| 518 deleteNext(); | |
| 519 }.bind(this), | |
| 520 function() { | |
| 521 // Restore the listener after a timeout so that ESC is processed. | |
| 522 setTimeout(restoreListener, 0); | |
| 523 }); | |
| 524 }; | |
| 525 | |
| 526 /** | |
| 527 * @return {Array.<Gallery.Item>} Current selection. | |
| 528 */ | |
| 529 Gallery.prototype.getSelectedItems = function() { | |
| 530 return this.selectionModel_.selectedIndexes.map( | |
| 531 this.dataModel_.item.bind(this.dataModel_)); | |
| 532 }; | |
| 533 | |
| 534 /** | |
| 535 * @return {Array.<string>} Array of currently selected urls. | |
| 536 */ | |
| 537 Gallery.prototype.getSelectedUrls = function() { | |
| 538 return this.selectionModel_.selectedIndexes.map(function(index) { | |
| 539 return this.dataModel_.item(index).getUrl(); | |
| 540 }.bind(this)); | |
| 541 }; | |
| 542 | |
| 543 /** | |
| 544 * @return {Gallery.Item} Current single selection. | |
| 545 */ | |
| 546 Gallery.prototype.getSingleSelectedItem = function() { | |
| 547 var items = this.getSelectedItems(); | |
| 548 if (items.length > 1) | |
| 549 throw new Error('Unexpected multiple selection'); | |
| 550 return items[0]; | |
| 551 }; | |
| 552 | |
| 553 /** | |
| 554 * Selection change event handler. | |
| 555 * @private | |
| 556 */ | |
| 557 Gallery.prototype.onSelection_ = function() { | |
| 558 this.updateSelectionAndState_(); | |
| 559 this.updateShareMenu_(); | |
| 560 }; | |
| 561 | |
| 562 /** | |
| 563 * Data model splice event handler. | |
| 564 * @private | |
| 565 */ | |
| 566 Gallery.prototype.onSplice_ = function() { | |
| 567 this.selectionModel_.adjustLength(this.dataModel_.length); | |
| 568 }; | |
| 569 | |
| 570 /** | |
| 571 * Content change event handler. | |
| 572 * @param {Event} event Event. | |
| 573 * @private | |
| 574 */ | |
| 575 Gallery.prototype.onContentChange_ = function(event) { | |
| 576 var index = this.dataModel_.indexOf(event.item); | |
| 577 if (index != this.selectionModel_.selectedIndex) | |
| 578 console.error('Content changed for unselected item'); | |
| 579 this.updateSelectionAndState_(); | |
| 580 }; | |
| 581 | |
| 582 /** | |
| 583 * Keydown handler. | |
| 584 * | |
| 585 * @param {Event} event Event. | |
| 586 * @private | |
| 587 */ | |
| 588 Gallery.prototype.onKeyDown_ = function(event) { | |
| 589 var wasSharing = this.isSharing_(); | |
| 590 this.closeShareMenu_(); | |
| 591 | |
| 592 if (this.currentMode_.onKeyDown(event)) | |
| 593 return; | |
| 594 | |
| 595 switch (util.getKeyModifiers(event) + event.keyIdentifier) { | |
| 596 case 'U+0008': // Backspace. | |
| 597 // The default handler would call history.back and close the Gallery. | |
| 598 event.preventDefault(); | |
| 599 break; | |
| 600 | |
| 601 case 'U+001B': // Escape | |
| 602 // Swallow Esc if it closed the Share menu, otherwise close the Gallery. | |
| 603 if (!wasSharing) | |
| 604 this.onBack_(); | |
| 605 break; | |
| 606 | |
| 607 case 'U+004D': // 'm' switches between Slide and Mosaic mode. | |
| 608 this.toggleMode_(null, event); | |
| 609 break; | |
| 610 | |
| 611 case 'U+0056': // 'v' | |
| 612 this.slideMode_.startSlideshow(SlideMode.SLIDESHOW_INTERVAL_FIRST, event); | |
| 613 break; | |
| 614 | |
| 615 case 'U+007F': // Delete | |
| 616 case 'Shift-U+0033': // Shift+'3' (Delete key might be missing). | |
| 617 this.delete_(); | |
| 618 break; | |
| 619 } | |
| 620 }; | |
| 621 | |
| 622 // Name box and rename support. | |
| 623 | |
| 624 /** | |
| 625 * Update the UI related to the selected item and the persistent state. | |
| 626 * | |
| 627 * @private | |
| 628 */ | |
| 629 Gallery.prototype.updateSelectionAndState_ = function() { | |
| 630 var path; | |
| 631 var displayName = ''; | |
| 632 | |
| 633 var selectedItems = this.getSelectedItems(); | |
| 634 if (selectedItems.length == 1) { | |
| 635 var item = selectedItems[0]; | |
| 636 path = util.extractFilePath(item.getUrl()); | |
| 637 var fullName = item.getFileName(); | |
| 638 window.top.document.title = fullName; | |
| 639 displayName = ImageUtil.getFileNameFromFullName(fullName); | |
| 640 } else if (selectedItems.length > 1 && this.context_.curDirEntry) { | |
| 641 // If the Gallery was opened on search results the search query will not be | |
| 642 // recorded in the app state and the relaunch will just open the gallery | |
| 643 // in the curDirEntry directory. | |
| 644 path = this.context_.curDirEntry.fullPath; | |
| 645 window.top.document.title = this.context_.curDirEntry.name; | |
| 646 displayName = | |
| 647 this.displayStringFunction_('GALLERY_ITEMS_SELECTED', | |
| 648 selectedItems.length); | |
| 649 } | |
| 650 | |
| 651 window.top.util.updateAppState(path, | |
| 652 {gallery: (this.currentMode_ == this.mosaicMode_ ? 'mosaic' : 'slide')}); | |
| 653 | |
| 654 // We can't rename files in readonly directory. | |
| 655 // We can only rename a single file. | |
| 656 this.filenameEdit_.disabled = selectedItems.length != 1 || | |
| 657 this.context_.readonlyDirName; | |
| 658 | |
| 659 this.filenameEdit_.value = displayName; | |
| 660 | |
| 661 // Resolve real filesystem path of the current file. | |
| 662 if (this.selectionModel_.selectedIndexes.length) { | |
| 663 var selectedIndex = this.selectionModel_.selectedIndex; | |
| 664 var selectedItem = | |
| 665 this.dataModel_.item(this.selectionModel_.selectedIndex); | |
| 666 | |
| 667 this.selectedItemFilesystemPath_ = null; | |
| 668 webkitResolveLocalFileSystemURL(selectedItem.getUrl(), | |
| 669 function(entry) { | |
| 670 if (this.selectionModel_.selectedIndex != selectedIndex) | |
| 671 return; | |
| 672 this.selectedItemFilesystemPath_ = entry.fullPath; | |
| 673 }.bind(this)); | |
| 674 } | |
| 675 }; | |
| 676 | |
| 677 /** | |
| 678 * Click event handler on filename edit box | |
| 679 * @private | |
| 680 */ | |
| 681 Gallery.prototype.onFilenameFocus_ = function() { | |
| 682 ImageUtil.setAttribute(this.filenameSpacer_, 'renaming', true); | |
| 683 this.filenameEdit_.originalValue = this.filenameEdit_.value; | |
| 684 setTimeout(this.filenameEdit_.select.bind(this.filenameEdit_), 0); | |
| 685 this.onUserAction_(); | |
| 686 }; | |
| 687 | |
| 688 /** | |
| 689 * Blur event handler on filename edit box. | |
| 690 * | |
| 691 * @param {Event} event Blur event. | |
| 692 * @return {boolean} if default action should be prevented. | |
| 693 * @private | |
| 694 */ | |
| 695 Gallery.prototype.onFilenameEditBlur_ = function(event) { | |
| 696 if (this.filenameEdit_.value && this.filenameEdit_.value[0] == '.') { | |
| 697 this.prompt_.show('file_hidden_name', 5000); | |
| 698 this.filenameEdit_.focus(); | |
| 699 event.stopPropagation(); | |
| 700 event.preventDefault(); | |
| 701 return false; | |
| 702 } | |
| 703 | |
| 704 var item = this.getSingleSelectedItem(); | |
| 705 var oldUrl = item.getUrl(); | |
| 706 | |
| 707 var onFileExists = function() { | |
| 708 this.prompt_.show('file_exists', 3000); | |
| 709 this.filenameEdit_.value = name; | |
| 710 this.filenameEdit_.focus(); | |
| 711 }.bind(this); | |
| 712 | |
| 713 var onSuccess = function() { | |
| 714 var e = new Event('content'); | |
| 715 e.item = item; | |
| 716 e.oldUrl = oldUrl; | |
| 717 e.metadata = null; // Metadata unchanged. | |
| 718 this.dataModel_.dispatchEvent(e); | |
| 719 }.bind(this); | |
| 720 | |
| 721 if (this.filenameEdit_.value) { | |
| 722 this.getSingleSelectedItem().rename( | |
| 723 this.filenameEdit_.value, onSuccess, onFileExists); | |
| 724 } | |
| 725 | |
| 726 ImageUtil.setAttribute(this.filenameSpacer_, 'renaming', false); | |
| 727 this.onUserAction_(); | |
| 728 }; | |
| 729 | |
| 730 /** | |
| 731 * Keydown event handler on filename edit box | |
| 732 * @private | |
| 733 */ | |
| 734 Gallery.prototype.onFilenameEditKeydown_ = function() { | |
| 735 switch (event.keyCode) { | |
| 736 case 27: // Escape | |
| 737 this.filenameEdit_.value = this.filenameEdit_.originalValue; | |
| 738 this.filenameEdit_.blur(); | |
| 739 break; | |
| 740 | |
| 741 case 13: // Enter | |
| 742 this.filenameEdit_.blur(); | |
| 743 break; | |
| 744 } | |
| 745 event.stopPropagation(); | |
| 746 }; | |
| 747 | |
| 748 /** | |
| 749 * @return {boolean} True if file renaming is currently in progress. | |
| 750 * @private | |
| 751 */ | |
| 752 Gallery.prototype.isRenaming_ = function() { | |
| 753 return this.filenameSpacer_.hasAttribute('renaming'); | |
| 754 }; | |
| 755 | |
| 756 /** | |
| 757 * Content area click handler. | |
| 758 * @private | |
| 759 */ | |
| 760 Gallery.prototype.onContentClick_ = function() { | |
| 761 this.closeShareMenu_(); | |
| 762 this.filenameEdit_.blur(); | |
| 763 }; | |
| 764 | |
| 765 // Share button support. | |
| 766 | |
| 767 /** | |
| 768 * @return {boolean} True if the Share menu is active. | |
| 769 * @private | |
| 770 */ | |
| 771 Gallery.prototype.isSharing_ = function() { | |
| 772 return !this.shareMenu_.hidden; | |
| 773 }; | |
| 774 | |
| 775 /** | |
| 776 * Close Share menu if it is open. | |
| 777 * @private | |
| 778 */ | |
| 779 Gallery.prototype.closeShareMenu_ = function() { | |
| 780 if (this.isSharing_()) | |
| 781 this.toggleShare_(); | |
| 782 }; | |
| 783 | |
| 784 /** | |
| 785 * Share button handler. | |
| 786 * @private | |
| 787 */ | |
| 788 Gallery.prototype.toggleShare_ = function() { | |
| 789 if (!this.shareButton_.hasAttribute('disabled')) | |
| 790 this.shareMenu_.hidden = !this.shareMenu_.hidden; | |
| 791 this.inactivityWatcher_.check(); | |
| 792 }; | |
| 793 | |
| 794 /** | |
| 795 * Updates available actions list based on the currently selected urls. | |
| 796 * @private. | |
| 797 */ | |
| 798 Gallery.prototype.updateShareMenu_ = function() { | |
| 799 var urls = this.getSelectedUrls(); | |
| 800 | |
| 801 function isShareAction(task) { | |
| 802 var taskParts = task.taskId.split('|'); | |
| 803 return taskParts[0] != chrome.runtime.id; | |
| 804 } | |
| 805 | |
| 806 var api = Gallery.getFileBrowserPrivate(); | |
| 807 var mimeTypes = []; // TODO(kaznacheev) Collect mime types properly. | |
| 808 | |
| 809 var createShareMenu = function(tasks) { | |
| 810 var wasHidden = this.shareMenu_.hidden; | |
| 811 this.shareMenu_.hidden = true; | |
| 812 var items = this.shareMenu_.querySelectorAll('.item'); | |
| 813 for (var i = 0; i != items.length; i++) { | |
| 814 items[i].parentNode.removeChild(items[i]); | |
| 815 } | |
| 816 | |
| 817 for (var t = 0; t != tasks.length; t++) { | |
| 818 var task = tasks[t]; | |
| 819 if (!isShareAction(task)) continue; | |
| 820 | |
| 821 var item = util.createChild(this.shareMenu_, 'item'); | |
| 822 item.textContent = task.title; | |
| 823 item.style.backgroundImage = 'url(' + task.iconUrl + ')'; | |
| 824 item.addEventListener('click', function(taskId) { | |
| 825 this.toggleShare_(); // Hide the menu. | |
| 826 this.executeWhenReady(api.executeTask.bind(api, taskId, urls)); | |
| 827 }.bind(this, task.taskId)); | |
| 828 } | |
| 829 | |
| 830 var empty = this.shareMenu_.querySelector('.item') == null; | |
| 831 ImageUtil.setAttribute(this.shareButton_, 'disabled', empty); | |
| 832 this.shareMenu_.hidden = wasHidden || empty; | |
| 833 }.bind(this); | |
| 834 | |
| 835 // Create or update the share menu with a list of sharing tasks and show | |
| 836 // or hide the share button. | |
| 837 if (!urls.length) | |
| 838 createShareMenu([]); // Empty list of tasks, since there is no selection. | |
| 839 else | |
| 840 api.getFileTasks(urls, mimeTypes, createShareMenu); | |
| 841 }; | |
| 842 | |
| 843 /** | |
| 844 * Updates thumbnails. | |
| 845 * @private | |
| 846 */ | |
| 847 Gallery.prototype.updateThumbnails_ = function() { | |
| 848 if (this.currentMode_ == this.slideMode_) | |
| 849 this.slideMode_.updateThumbnails(); | |
| 850 | |
| 851 if (this.mosaicMode_) { | |
| 852 var mosaic = this.mosaicMode_.getMosaic(); | |
| 853 if (mosaic.isInitialized()) | |
| 854 mosaic.reload(); | |
| 855 } | |
| 856 }; | |
| 857 | |
| 858 /** | |
| 859 * Updates buttons. | |
| 860 * @private | |
| 861 */ | |
| 862 Gallery.prototype.updateButtons_ = function() { | |
| 863 if (this.modeButton_) { | |
| 864 var oppositeMode = | |
| 865 this.currentMode_ == this.slideMode_ ? this.mosaicMode_ : | |
| 866 this.slideMode_; | |
| 867 this.modeButton_.title = | |
| 868 this.displayStringFunction_(oppositeMode.getTitle()); | |
| 869 } | |
| 870 }; | |
| OLD | NEW |
|---|
Chromium Code Reviews
Issue 39123003:
[Files.app] Split the JavaScript files into subdirectories: common, background, and foreground (Closed)
Base URL: svn://svn.chromium.org/chrome/trunk/src