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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 #include "ash/wm/ash_activation_controller.h" | |
6 | |
7 #include "ash/launcher/launcher.h" | |
8 #include "ash/root_window_controller.h" | |
9 #include "ash/shelf/shelf_widget.h" | |
10 #include "ash/shell.h" | |
11 #include "ash/shell_delegate.h" | |
12 #include "ash/wm/activation_controller.h" | |
13 #include "ash/wm/property_util.h" | |
14 #include "ash/wm/window_util.h" | |
15 #include "ash/wm/workspace_controller.h" | |
16 #include "ui/views/corewm/window_modality_controller.h" | |
17 #include "ui/views/widget/widget.h" | |
18 | |
19 namespace ash { | |
20 namespace internal { | |
21 | |
22 //////////////////////////////////////////////////////////////////////////////// | |
23 // AshActivationController, public: | |
24 | |
25 AshActivationController::AshActivationController() { | |
26 } | |
27 | |
28 AshActivationController::~AshActivationController() { | |
29 } | |
30 | |
31 //////////////////////////////////////////////////////////////////////////////// | |
32 // AshActivationController, ActivationControllerDelegate implementation: | |
33 | |
34 aura::Window* AshActivationController::WillActivateWindow( | |
35 aura::Window* window) { | |
36 aura::Window* window_modal_transient = | |
37 views::corewm::GetModalTransient(window); | |
38 if (window_modal_transient) | |
39 return window_modal_transient; | |
40 | |
41 // Fallback to launcher | |
42 if (!window) | |
43 window = PrepareToActivateLauncher(); | |
44 | |
45 // Restore minimized window. This needs to be done before CanReceiveEvents() | |
46 // is called as that function checks window visibility. | |
47 if (window && wm::IsWindowMinimized(window)) | |
48 window->Show(); | |
49 | |
50 // If the screen is locked, just bring the window to top so that | |
51 // it will be activated when the lock window is destroyed. | |
52 // TODO(beng): Call EventClient directly here, rather than conflating with | |
53 // window visibility. | |
54 if (window && !window->CanReceiveEvents()) | |
55 return NULL; | |
56 | |
57 // TODO(beng): could probably move to being a ActivationChangeObserver on | |
58 // Shell. | |
59 if (window) { | |
60 DCHECK(window->GetRootWindow()); | |
61 Shell::GetInstance()->set_active_root_window(window->GetRootWindow()); | |
62 } | |
63 return window; | |
64 } | |
65 | |
66 aura::Window* AshActivationController::WillFocusWindow( | |
67 aura::Window* window) { | |
68 aura::Window* window_modal_transient = | |
69 views::corewm::GetModalTransient(window); | |
70 if (window_modal_transient) | |
71 return window_modal_transient; | |
72 return window; | |
73 } | |
74 | |
75 aura::Window* AshActivationController::PrepareToActivateLauncher() { | |
76 // If workspace controller is not available, then it means that the root | |
77 // window is being destroyed. We can't activate any window then. | |
78 if (!GetRootWindowController( | |
79 Shell::GetActiveRootWindow())->workspace_controller()) { | |
80 return NULL; | |
81 } | |
82 // Fallback to a launcher only when Spoken feedback is enabled. | |
83 if (!Shell::GetInstance()->delegate()->IsSpokenFeedbackEnabled()) | |
84 return NULL; | |
85 ShelfWidget* shelf = GetRootWindowController( | |
86 Shell::GetActiveRootWindow())->shelf(); | |
87 // Launcher's window may be already destroyed in shutting down process. | |
88 if (!shelf) | |
89 return NULL; | |
90 // Notify launcher to allow activation via CanActivate(). | |
91 shelf->WillActivateAsFallback(); | |
92 return shelf->GetNativeWindow(); | |
93 } | |
94 | |
95 } // namespace internal | |
96 } // namespace ash | |
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