src/chrome/browser/ui/app_list/app_list_service_mac.mm

   1 // Copyright 2013 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 #import "chrome/browser/ui/app_list/app_list_service_mac.h"
   6
   7 #include <ApplicationServices/ApplicationServices.h>
   8 #import <Cocoa/Cocoa.h>
   9
  10 #include "apps/app_shim/app_shim_mac.h"
  11 #include "base/bind.h"
  12 #include "base/command_line.h"
  13 #include "base/file_util.h"
  14 #include "base/lazy_instance.h"
  15 #include "base/mac/mac_util.h"
  16 #include "base/memory/singleton.h"
  17 #include "base/message_loop/message_loop.h"
  18 #import "chrome/browser/app_controller_mac.h"
  19 #include "chrome/browser/browser_process.h"
  20 #include "chrome/browser/extensions/extension_service.h"
  21 #include "chrome/browser/profiles/profile_manager.h"
  22 #include "chrome/browser/ui/app_list/app_list_controller_delegate_impl.h"
  23 #include "chrome/browser/ui/app_list/app_list_positioner.h"
  24 #include "chrome/browser/ui/app_list/app_list_service.h"
  25 #include "chrome/browser/ui/app_list/app_list_service_impl.h"
  26 #include "chrome/browser/ui/app_list/app_list_util.h"
  27 #include "chrome/browser/ui/app_list/app_list_view_delegate.h"
  28 #include "chrome/browser/ui/browser_commands.h"
  29 #include "chrome/browser/ui/extensions/application_launch.h"
  30 #include "chrome/browser/web_applications/web_app.h"
  31 #include "chrome/browser/web_applications/web_app_mac.h"
  32 #include "chrome/common/chrome_switches.h"
  33 #include "chrome/common/chrome_version_info.h"
  34 #include "chrome/common/extensions/manifest_handlers/app_launch_info.h"
  35 #include "chrome/common/mac/app_mode_common.h"
  36 #include "chrome/common/pref_names.h"
  37 #include "content/public/browser/browser_thread.h"
  38 #include "extensions/browser/extension_system.h"
  39 #include "grit/chrome_unscaled_resources.h"
  40 #include "grit/google_chrome_strings.h"
  41 #include "net/base/url_util.h"
  42 #import "ui/app_list/cocoa/app_list_view_controller.h"
  43 #import "ui/app_list/cocoa/app_list_window_controller.h"
  44 #include "ui/app_list/search_box_model.h"
  45 #include "ui/base/l10n/l10n_util.h"
  46 #include "ui/base/resource/resource_bundle.h"
  47 #include "ui/gfx/display.h"
  48 #include "ui/gfx/screen.h"
  49
  50 namespace gfx {
  51 class ImageSkia;
  52 }
  53
  54 // Controller for animations that show or hide the app list.
  55 @interface AppListAnimationController : NSObject<NSAnimationDelegate> {
  56  @private
  57   // When closing, the window to close. Retained until the animation ends.
  58   base::scoped_nsobject<NSWindow> window_;
  59   // The animation started and owned by |self|. Reset when the animation ends.
  60   base::scoped_nsobject<NSViewAnimation> animation_;
  61 }
  62
  63 // Returns whether |window_| is scheduled to be closed when the animation ends.
  64 - (BOOL)isClosing;
  65
  66 // Animate |window| to show or close it, after cancelling any current animation.
  67 // Translates from the current location to |targetOrigin| and fades in or out.
  68 - (void)animateWindow:(NSWindow*)window
  69          targetOrigin:(NSPoint)targetOrigin
  70               closing:(BOOL)closing;
  71
  72 // Called on the UI thread once the animation has completed to reset the
  73 // animation state, close the window (if it is a close animation), and possibly
  74 // terminate Chrome.
  75 - (void)cleanupOnUIThread;
  76
  77 @end
  78
  79 namespace {
  80
  81 // Version of the app list shortcut version installed.
  82 const int kShortcutVersion = 1;
  83
  84 // Duration of show and hide animations.
  85 const NSTimeInterval kAnimationDuration = 0.2;
  86
  87 // Distance towards the screen edge that the app list moves from when showing.
  88 const CGFloat kDistanceMovedOnShow = 20;
  89
  90 web_app::ShortcutInfo GetAppListShortcutInfo(
  91     const base::FilePath& profile_path) {
  92   web_app::ShortcutInfo shortcut_info;
  93   chrome::VersionInfo::Channel channel = chrome::VersionInfo::GetChannel();
  94   if (channel == chrome::VersionInfo::CHANNEL_CANARY) {
  95     shortcut_info.title =
  96         l10n_util::GetStringUTF16(IDS_APP_LIST_SHORTCUT_NAME_CANARY);
  97   } else {
  98     shortcut_info.title = l10n_util::GetStringUTF16(IDS_APP_LIST_SHORTCUT_NAME);
  99   }
 100
 101   shortcut_info.extension_id = app_mode::kAppListModeId;
 102   shortcut_info.description = shortcut_info.title;
 103   shortcut_info.profile_path = profile_path;
 104
 105   return shortcut_info;
 106 }
 107
 108 void CreateAppListShim(const base::FilePath& profile_path) {
 109   DCHECK_CURRENTLY_ON(content::BrowserThread::UI);
 110   WebApplicationInfo web_app_info;
 111   web_app::ShortcutInfo shortcut_info =
 112       GetAppListShortcutInfo(profile_path);
 113
 114   ResourceBundle& resource_bundle = ResourceBundle::GetSharedInstance();
 115   chrome::VersionInfo::Channel channel = chrome::VersionInfo::GetChannel();
 116   if (channel == chrome::VersionInfo::CHANNEL_CANARY) {
 117 #if defined(GOOGLE_CHROME_BUILD)
 118     shortcut_info.favicon.Add(
 119         *resource_bundle.GetImageSkiaNamed(IDR_APP_LIST_CANARY_16));
 120     shortcut_info.favicon.Add(
 121         *resource_bundle.GetImageSkiaNamed(IDR_APP_LIST_CANARY_32));
 122     shortcut_info.favicon.Add(
 123         *resource_bundle.GetImageSkiaNamed(IDR_APP_LIST_CANARY_128));
 124     shortcut_info.favicon.Add(
 125         *resource_bundle.GetImageSkiaNamed(IDR_APP_LIST_CANARY_256));
 126 #else
 127     NOTREACHED();
 128 #endif
 129   } else {
 130     shortcut_info.favicon.Add(
 131         *resource_bundle.GetImageSkiaNamed(IDR_APP_LIST_16));
 132     shortcut_info.favicon.Add(
 133         *resource_bundle.GetImageSkiaNamed(IDR_APP_LIST_32));
 134     shortcut_info.favicon.Add(
 135         *resource_bundle.GetImageSkiaNamed(IDR_APP_LIST_128));
 136     shortcut_info.favicon.Add(
 137         *resource_bundle.GetImageSkiaNamed(IDR_APP_LIST_256));
 138   }
 139
 140   web_app::ShortcutLocations shortcut_locations;
 141   PrefService* local_state = g_browser_process->local_state();
 142   int installed_version =
 143       local_state->GetInteger(prefs::kAppLauncherShortcutVersion);
 144
 145   // If this is a first-time install, add a dock icon. Otherwise just update
 146   // the target, and wait for OSX to refresh its icon caches. This might not
 147   // occur until a reboot, but OSX does not offer a nicer way. Deleting cache
 148   // files on disk and killing processes can easily result in icon corruption.
 149   if (installed_version == 0)
 150     shortcut_locations.in_quick_launch_bar = true;
 151
 152   web_app::CreateShortcutsForShortcutInfo(
 153       web_app::SHORTCUT_CREATION_AUTOMATED,
 154       shortcut_locations,
 155       shortcut_info);
 156
 157   local_state->SetInteger(prefs::kAppLauncherShortcutVersion,
 158                           kShortcutVersion);
 159 }
 160
 161 NSRunningApplication* ActiveApplicationNotChrome() {
 162   NSArray* applications = [[NSWorkspace sharedWorkspace] runningApplications];
 163   for (NSRunningApplication* application in applications) {
 164     if (![application isActive])
 165       continue;
 166
 167     if ([application isEqual:[NSRunningApplication currentApplication]])
 168       return nil;  // Chrome is active.
 169
 170     return application;
 171   }
 172
 173   return nil;
 174 }
 175
 176 // Determines which screen edge the dock is aligned to.
 177 AppListPositioner::ScreenEdge DockLocationInDisplay(
 178     const gfx::Display& display) {
 179   // Assume the dock occupies part of the work area either on the left, right or
 180   // bottom of the display. Note in the autohide case, it is always 4 pixels.
 181   const gfx::Rect work_area = display.work_area();
 182   const gfx::Rect display_bounds = display.bounds();
 183   if (work_area.bottom() != display_bounds.bottom())
 184     return AppListPositioner::SCREEN_EDGE_BOTTOM;
 185
 186   if (work_area.x() != display_bounds.x())
 187     return AppListPositioner::SCREEN_EDGE_LEFT;
 188
 189   if (work_area.right() != display_bounds.right())
 190     return AppListPositioner::SCREEN_EDGE_RIGHT;
 191
 192   return AppListPositioner::SCREEN_EDGE_UNKNOWN;
 193 }
 194
 195 // If |display|'s work area is too close to its boundary on |dock_edge|, adjust
 196 // the work area away from the edge by a constant amount to reduce overlap and
 197 // ensure the dock icon can still be clicked to dismiss the app list.
 198 void AdjustWorkAreaForDock(const gfx::Display& display,
 199                            AppListPositioner* positioner,
 200                            AppListPositioner::ScreenEdge dock_edge) {
 201   const int kAutohideDockThreshold = 10;
 202   const int kExtraDistance = 50;  // A dock with 40 items is about this size.
 203
 204   const gfx::Rect work_area = display.work_area();
 205   const gfx::Rect display_bounds = display.bounds();
 206
 207   switch (dock_edge) {
 208     case AppListPositioner::SCREEN_EDGE_LEFT:
 209       if (work_area.x() - display_bounds.x() <= kAutohideDockThreshold)
 210         positioner->WorkAreaInset(kExtraDistance, 0, 0, 0);
 211       break;
 212     case AppListPositioner::SCREEN_EDGE_RIGHT:
 213       if (display_bounds.right() - work_area.right() <= kAutohideDockThreshold)
 214         positioner->WorkAreaInset(0, 0, kExtraDistance, 0);
 215       break;
 216     case AppListPositioner::SCREEN_EDGE_BOTTOM:
 217       if (display_bounds.bottom() - work_area.bottom() <=
 218           kAutohideDockThreshold) {
 219         positioner->WorkAreaInset(0, 0, 0, kExtraDistance);
 220       }
 221       break;
 222     case AppListPositioner::SCREEN_EDGE_UNKNOWN:
 223     case AppListPositioner::SCREEN_EDGE_TOP:
 224       NOTREACHED();
 225       break;
 226   }
 227 }
 228
 229 void GetAppListWindowOrigins(
 230     NSWindow* window, NSPoint* target_origin, NSPoint* start_origin) {
 231   gfx::Screen* const screen = gfx::Screen::GetScreenFor([window contentView]);
 232   // Ensure y coordinates are flipped back into AppKit's coordinate system.
 233   bool cursor_is_visible = CGCursorIsVisible();
 234   gfx::Display display;
 235   gfx::Point cursor;
 236   if (!cursor_is_visible) {
 237     // If Chrome is the active application, display on the same display as
 238     // Chrome's keyWindow since this will catch activations triggered, e.g, via
 239     // WebStore install. If another application is active, OSX doesn't provide a
 240     // reliable way to get the display in use. Fall back to the primary display
 241     // since it has the menu bar and is likely to be correct, e.g., for
 242     // activations from Spotlight.
 243     const gfx::NativeView key_view = [[NSApp keyWindow] contentView];
 244     display = key_view && [NSApp isActive] ?
 245         screen->GetDisplayNearestWindow(key_view) :
 246         screen->GetPrimaryDisplay();
 247   } else {
 248     cursor = screen->GetCursorScreenPoint();
 249     display = screen->GetDisplayNearestPoint(cursor);
 250   }
 251
 252   const NSSize ns_window_size = [window frame].size;
 253   gfx::Size window_size(ns_window_size.width, ns_window_size.height);
 254   int primary_display_height =
 255       NSMaxY([[[NSScreen screens] objectAtIndex:0] frame]);
 256   AppListServiceMac::FindAnchorPoint(window_size,
 257                                      display,
 258                                      primary_display_height,
 259                                      cursor_is_visible,
 260                                      cursor,
 261                                      target_origin,
 262                                      start_origin);
 263 }
 264
 265 }  // namespace
 266
 267 AppListServiceMac::AppListServiceMac()
 268     : profile_(NULL),
 269       controller_delegate_(new AppListControllerDelegateImpl(this)) {
 270   animation_controller_.reset([[AppListAnimationController alloc] init]);
 271 }
 272
 273 AppListServiceMac::~AppListServiceMac() {}
 274
 275 // static
 276 AppListServiceMac* AppListServiceMac::GetInstance() {
 277   return Singleton<AppListServiceMac,
 278                    LeakySingletonTraits<AppListServiceMac> >::get();
 279 }
 280
 281 // static
 282 void AppListServiceMac::FindAnchorPoint(const gfx::Size& window_size,
 283                                         const gfx::Display& display,
 284                                         int primary_display_height,
 285                                         bool cursor_is_visible,
 286                                         const gfx::Point& cursor,
 287                                         NSPoint* target_origin,
 288                                         NSPoint* start_origin) {
 289   AppListPositioner positioner(display, window_size, 0);
 290   AppListPositioner::ScreenEdge dock_location = DockLocationInDisplay(display);
 291
 292   gfx::Point anchor;
 293   // Snap to the dock edge. If the cursor is greater than the window
 294   // width/height away or not visible, anchor to the center of the dock.
 295   // Otherwise, anchor to the cursor position.
 296   if (dock_location == AppListPositioner::SCREEN_EDGE_UNKNOWN) {
 297     anchor = positioner.GetAnchorPointForScreenCorner(
 298         AppListPositioner::SCREEN_CORNER_BOTTOM_LEFT);
 299   } else {
 300     int snap_distance =
 301         dock_location == AppListPositioner::SCREEN_EDGE_BOTTOM ||
 302                 dock_location == AppListPositioner::SCREEN_EDGE_TOP ?
 303             window_size.height() :
 304             window_size.width();
 305     // Subtract the dock area since the display's default work_area will not
 306     // subtract it if the dock is set to auto-hide, and the app list should
 307     // never overlap the dock.
 308     AdjustWorkAreaForDock(display, &positioner, dock_location);
 309     if (!cursor_is_visible || positioner.GetCursorDistanceFromShelf(
 310                                   dock_location, cursor) > snap_distance) {
 311       anchor = positioner.GetAnchorPointForShelfCenter(dock_location);
 312     } else {
 313       anchor = positioner.GetAnchorPointForShelfCursor(dock_location, cursor);
 314     }
 315   }
 316
 317   *target_origin = NSMakePoint(
 318       anchor.x() - window_size.width() / 2,
 319       primary_display_height - anchor.y() - window_size.height() / 2);
 320   *start_origin = *target_origin;
 321
 322   // If the launcher is anchored to the dock (regardless of whether the cursor
 323   // is visible), animate in inwards from the edge of screen
 324   switch (dock_location) {
 325     case AppListPositioner::SCREEN_EDGE_UNKNOWN:
 326       break;
 327     case AppListPositioner::SCREEN_EDGE_LEFT:
 328       start_origin->x -= kDistanceMovedOnShow;
 329       break;
 330     case AppListPositioner::SCREEN_EDGE_RIGHT:
 331       start_origin->x += kDistanceMovedOnShow;
 332       break;
 333     case AppListPositioner::SCREEN_EDGE_TOP:
 334       NOTREACHED();
 335       break;
 336     case AppListPositioner::SCREEN_EDGE_BOTTOM:
 337       start_origin->y -= kDistanceMovedOnShow;
 338       break;
 339   }
 340 }
 341
 342 void AppListServiceMac::Init(Profile* initial_profile) {
 343   // On Mac, Init() is called multiple times for a process: any time there is no
 344   // browser window open and a new window is opened, and during process startup
 345   // to handle the silent launch case (e.g. for app shims). In the startup case,
 346   // a profile has not yet been determined so |initial_profile| will be NULL.
 347   static bool init_called_with_profile = false;
 348   if (initial_profile && !init_called_with_profile) {
 349     init_called_with_profile = true;
 350     PerformStartupChecks(initial_profile);
 351     PrefService* local_state = g_browser_process->local_state();
 352     if (!IsAppLauncherEnabled()) {
 353       local_state->SetInteger(prefs::kAppLauncherShortcutVersion, 0);
 354     } else {
 355       int installed_shortcut_version =
 356           local_state->GetInteger(prefs::kAppLauncherShortcutVersion);
 357
 358       if (kShortcutVersion > installed_shortcut_version)
 359         CreateShortcut();
 360     }
 361   }
 362
 363   static bool init_called = false;
 364   if (init_called)
 365     return;
 366
 367   init_called = true;
 368   apps::AppShimHandler::RegisterHandler(app_mode::kAppListModeId,
 369                                         AppListServiceMac::GetInstance());
 370
 371   // Handle the case where Chrome was not running and was started with the app
 372   // launcher shim. The profile has not yet been loaded. To improve response
 373   // times, start animating an empty window which will be populated via
 374   // OnShimLaunch(). Note that if --silent-launch is not also passed, the window
 375   // will instead populate via StartupBrowserCreator::Launch(). Shim-initiated
 376   // launches will always have --silent-launch.
 377   if (CommandLine::ForCurrentProcess()->HasSwitch(switches::kShowAppList))
 378     ShowWindowNearDock();
 379 }
 380
 381 Profile* AppListServiceMac::GetCurrentAppListProfile() {
 382   return profile_;
 383 }
 384
 385 void AppListServiceMac::CreateForProfile(Profile* requested_profile) {
 386   if (profile_ == requested_profile)
 387     return;
 388
 389   profile_ = requested_profile;
 390
 391   if (!window_controller_)
 392     window_controller_.reset([[AppListWindowController alloc] init]);
 393
 394   scoped_ptr<app_list::AppListViewDelegate> delegate(
 395       new AppListViewDelegate(profile_, GetControllerDelegate()));
 396   [[window_controller_ appListViewController] setDelegate:delegate.Pass()];
 397 }
 398
 399 void AppListServiceMac::ShowForProfile(Profile* requested_profile) {
 400   if (requested_profile->IsManaged())
 401     return;
 402
 403   InvalidatePendingProfileLoads();
 404
 405   if (requested_profile == profile_) {
 406     ShowWindowNearDock();
 407     return;
 408   }
 409
 410   SetProfilePath(requested_profile->GetPath());
 411   CreateForProfile(requested_profile);
 412   ShowWindowNearDock();
 413 }
 414
 415 void AppListServiceMac::DismissAppList() {
 416   if (!IsAppListVisible())
 417     return;
 418
 419   // If the app list is currently the main window, it will activate the next
 420   // Chrome window when dismissed. But if a different application was active
 421   // when the app list was shown, activate that instead.
 422   base::scoped_nsobject<NSRunningApplication> prior_app;
 423   if ([[window_controller_ window] isMainWindow])
 424     prior_app.swap(previously_active_application_);
 425   else
 426     previously_active_application_.reset();
 427
 428   // If activation is successful, the app list will lose main status and try to
 429   // close itself again. It can't be closed in this runloop iteration without
 430   // OSX deciding to raise the next Chrome window, and _then_ activating the
 431   // application on top. This also occurs if no activation option is given.
 432   if ([prior_app activateWithOptions:NSApplicationActivateIgnoringOtherApps])
 433     return;
 434
 435   [animation_controller_ animateWindow:[window_controller_ window]
 436                           targetOrigin:last_start_origin_
 437                                closing:YES];
 438 }
 439
 440 bool AppListServiceMac::IsAppListVisible() const {
 441   return [[window_controller_ window] isVisible] &&
 442       ![animation_controller_ isClosing];
 443 }
 444
 445 void AppListServiceMac::EnableAppList(Profile* initial_profile,
 446                                       AppListEnableSource enable_source) {
 447   AppListServiceImpl::EnableAppList(initial_profile, enable_source);
 448   AppController* controller = [NSApp delegate];
 449   [controller initAppShimMenuController];
 450 }
 451
 452 void AppListServiceMac::CreateShortcut() {
 453   CreateAppListShim(GetProfilePath(
 454       g_browser_process->profile_manager()->user_data_dir()));
 455 }
 456
 457 NSWindow* AppListServiceMac::GetAppListWindow() {
 458   return [window_controller_ window];
 459 }
 460
 461 AppListControllerDelegate* AppListServiceMac::GetControllerDelegate() {
 462   return controller_delegate_.get();
 463 }
 464
 465 void AppListServiceMac::OnShimLaunch(apps::AppShimHandler::Host* host,
 466                                      apps::AppShimLaunchType launch_type,
 467                                      const std::vector<base::FilePath>& files) {
 468   if (profile_ && IsAppListVisible()) {
 469     DismissAppList();
 470   } else {
 471     // Start by showing a possibly empty window to handle the case where Chrome
 472     // is running, but hasn't yet loaded the app launcher profile.
 473     ShowWindowNearDock();
 474     Show();
 475   }
 476
 477   // Always close the shim process immediately.
 478   host->OnAppLaunchComplete(apps::APP_SHIM_LAUNCH_DUPLICATE_HOST);
 479 }
 480
 481 void AppListServiceMac::OnShimClose(apps::AppShimHandler::Host* host) {}
 482
 483 void AppListServiceMac::OnShimFocus(apps::AppShimHandler::Host* host,
 484                                     apps::AppShimFocusType focus_type,
 485                                     const std::vector<base::FilePath>& files) {}
 486
 487 void AppListServiceMac::OnShimSetHidden(apps::AppShimHandler::Host* host,
 488                                         bool hidden) {}
 489
 490 void AppListServiceMac::OnShimQuit(apps::AppShimHandler::Host* host) {}
 491
 492 void AppListServiceMac::ShowWindowNearDock() {
 493   if (IsAppListVisible())
 494     return;
 495
 496   if (!window_controller_) {
 497     // Note that this will start showing an unpopulated window, the caller needs
 498     // to ensure it will be populated later.
 499     window_controller_.reset([[AppListWindowController alloc] init]);
 500   }
 501
 502   NSWindow* window = GetAppListWindow();
 503   DCHECK(window);
 504   NSPoint target_origin;
 505   GetAppListWindowOrigins(window, &target_origin, &last_start_origin_);
 506   [window setFrameOrigin:last_start_origin_];
 507
 508   // Before activating, see if an application other than Chrome is currently the
 509   // active application, so that it can be reactivated when dismissing.
 510   previously_active_application_.reset([ActiveApplicationNotChrome() retain]);
 511
 512   [animation_controller_ animateWindow:[window_controller_ window]
 513                           targetOrigin:target_origin
 514                                closing:NO];
 515   [window makeKeyAndOrderFront:nil];
 516   [NSApp activateIgnoringOtherApps:YES];
 517   RecordAppListLaunch();
 518 }
 519
 520 void AppListServiceMac::WindowAnimationDidEnd() {
 521   [animation_controller_ cleanupOnUIThread];
 522 }
 523
 524 // static
 525 AppListService* AppListService::Get(chrome::HostDesktopType desktop_type) {
 526   return AppListServiceMac::GetInstance();
 527 }
 528
 529 // static
 530 void AppListService::InitAll(Profile* initial_profile) {
 531   AppListServiceMac::GetInstance()->Init(initial_profile);
 532 }
 533
 534 @implementation AppListAnimationController
 535
 536 - (BOOL)isClosing {
 537   return !!window_;
 538 }
 539
 540 - (void)animateWindow:(NSWindow*)window
 541          targetOrigin:(NSPoint)targetOrigin
 542               closing:(BOOL)closing {
 543   // First, stop the existing animation, if there is one.
 544   [animation_ stopAnimation];
 545
 546   NSRect targetFrame = [window frame];
 547   targetFrame.origin = targetOrigin;
 548
 549   // NSViewAnimation has a quirk when setting the curve to NSAnimationEaseOut
 550   // where it attempts to auto-reverse the animation. FadeOut becomes FadeIn
 551   // (good), but FrameKey is also switched (bad). So |targetFrame| needs to be
 552   // put on the StartFrameKey when using NSAnimationEaseOut for showing.
 553   NSArray* animationArray = @[
 554     @{
 555       NSViewAnimationTargetKey : window,
 556       NSViewAnimationEffectKey : NSViewAnimationFadeOutEffect,
 557       (closing ? NSViewAnimationEndFrameKey : NSViewAnimationStartFrameKey) :
 558           [NSValue valueWithRect:targetFrame]
 559     }
 560   ];
 561   animation_.reset(
 562       [[NSViewAnimation alloc] initWithViewAnimations:animationArray]);
 563   [animation_ setDuration:kAnimationDuration];
 564   [animation_ setDelegate:self];
 565
 566   if (closing) {
 567     [animation_ setAnimationCurve:NSAnimationEaseIn];
 568     window_.reset([window retain]);
 569   } else {
 570     [window setAlphaValue:0.0f];
 571     [animation_ setAnimationCurve:NSAnimationEaseOut];
 572     window_.reset();
 573   }
 574   // Threaded animations are buggy on Snow Leopard. See http://crbug.com/335550.
 575   // Note that in the non-threaded case, the animation won't start unless the
 576   // UI runloop has spun up, so on <= Lion the animation will only animate if
 577   // Chrome is already running.
 578   if (base::mac::IsOSMountainLionOrLater())
 579     [animation_ setAnimationBlockingMode:NSAnimationNonblockingThreaded];
 580   else
 581     [animation_ setAnimationBlockingMode:NSAnimationNonblocking];
 582
 583   [animation_ startAnimation];
 584 }
 585
 586 - (void)cleanupOnUIThread {
 587   bool closing = [self isClosing];
 588   [window_ close];
 589   window_.reset();
 590   animation_.reset();
 591
 592   if (closing)
 593     apps::AppShimHandler::MaybeTerminate();
 594 }
 595
 596 - (void)animationDidEnd:(NSAnimation*)animation {
 597   content::BrowserThread::PostTask(
 598       content::BrowserThread::UI,
 599       FROM_HERE,
 600       base::Bind(&AppListServiceMac::WindowAnimationDidEnd,
 601                  base::Unretained(AppListServiceMac::GetInstance())));
 602 }
 603
 604 @end