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Side by Side Diff: ui/wm/core/window_util.h

Issue 2383263002: Generalize layer mirroring for phantom windows (Closed)
Patch Set: Rebase Created 4 years, 1 month ago
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1 // Copyright (c) 2012 The Chromium Authors. All rights reserved. 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 2 // Use of this source code is governed by a BSD-style license that can be
3 // found in the LICENSE file. 3 // found in the LICENSE file.
4 4
5 #ifndef UI_WM_CORE_WINDOW_UTIL_H_ 5 #ifndef UI_WM_CORE_WINDOW_UTIL_H_
6 #define UI_WM_CORE_WINDOW_UTIL_H_ 6 #define UI_WM_CORE_WINDOW_UTIL_H_
7 7
8 #include <memory> 8 #include <memory>
9 #include <vector> 9 #include <vector>
10 10
11 #include "base/compiler_specific.h" 11 #include "base/compiler_specific.h"
12 #include "ui/wm/wm_export.h" 12 #include "ui/wm/wm_export.h"
13 13
14 namespace aura { 14 namespace aura {
15 class Window; 15 class Window;
16 } 16 }
17 17
18 namespace ui { 18 namespace ui {
19 class Layer; 19 class Layer;
20 class LayerDelegate;
21 class LayerOwner; 20 class LayerOwner;
22 class LayerTreeOwner; 21 class LayerTreeOwner;
23 } 22 }
24 23
25 namespace wm { 24 namespace wm {
26 25
27 WM_EXPORT void ActivateWindow(aura::Window* window); 26 WM_EXPORT void ActivateWindow(aura::Window* window);
28 WM_EXPORT void DeactivateWindow(aura::Window* window); 27 WM_EXPORT void DeactivateWindow(aura::Window* window);
29 WM_EXPORT bool IsActiveWindow(aura::Window* window); 28 WM_EXPORT bool IsActiveWindow(aura::Window* window);
30 WM_EXPORT bool CanActivateWindow(aura::Window* window); 29 WM_EXPORT bool CanActivateWindow(aura::Window* window);
31 30
32 // Retrieves the activatable window for |window|. The ActivationClient makes 31 // Retrieves the activatable window for |window|. The ActivationClient makes
33 // this determination. 32 // this determination.
34 WM_EXPORT aura::Window* GetActivatableWindow(aura::Window* window); 33 WM_EXPORT aura::Window* GetActivatableWindow(aura::Window* window);
35 34
36 // Retrieves the toplevel window for |window|. The ActivationClient makes this 35 // Retrieves the toplevel window for |window|. The ActivationClient makes this
37 // determination. 36 // determination.
38 WM_EXPORT aura::Window* GetToplevelWindow(aura::Window* window); 37 WM_EXPORT aura::Window* GetToplevelWindow(aura::Window* window);
39 38
40 // A factory method to create a delegate for recreated layers.
41 class WM_EXPORT LayerDelegateFactory {
42 public:
43 virtual ~LayerDelegateFactory() = default;
44 // |original_layer| may already be deleted by the time the new
45 // delegate is created, so if the new delegate has to access it
46 // later, it is the new delegate's responsibility to make sure the
47 // original layer/delegate is alive.
48 virtual ui::LayerDelegate* CreateDelegate(ui::Layer* new_layer,
49 ui::Layer* original_layer) = 0;
50 };
51
52 // Returns the existing Layer for |root| (and all its descendants) and creates 39 // Returns the existing Layer for |root| (and all its descendants) and creates
53 // a new layer for |root| and all its descendants. This is intended for 40 // a new layer for |root| and all its descendants. This is intended for
54 // animations that want to animate between the existing visuals and a new state. 41 // animations that want to animate between the existing visuals and a new state.
55 // 42 //
56 // As a result of this |root| has freshly created layers, meaning the layers 43 // As a result of this |root| has freshly created layers, meaning the layers
57 // have not yet been painted to. 44 // have not yet been painted to.
58 //
59 // When a non null |delegate_factory| is passed, it will be used to
60 // create a delegate for an old layer which had its own delegate.
61 WM_EXPORT std::unique_ptr<ui::LayerTreeOwner> RecreateLayers( 45 WM_EXPORT std::unique_ptr<ui::LayerTreeOwner> RecreateLayers(
62 ui::LayerOwner* root, 46 ui::LayerOwner* root);
63 LayerDelegateFactory* delegate_factory); 47
48 // Returns a layer tree that mirrors |root|. Used for live window previews. If
49 // |sync_bounds| is true, the bounds of all mirror layers except the root are
50 // synchronized. See |sync_bounds_| in ui::Layer.
51 WM_EXPORT std::unique_ptr<ui::LayerTreeOwner> MirrorLayers(
52 ui::LayerOwner* root, bool sync_bounds);
64 53
65 // Convenience functions that get the TransientWindowManager for the window and 54 // Convenience functions that get the TransientWindowManager for the window and
66 // redirect appropriately. These are preferable to calling functions on 55 // redirect appropriately. These are preferable to calling functions on
67 // TransientWindowManager as they handle the appropriate NULL checks. 56 // TransientWindowManager as they handle the appropriate NULL checks.
68 WM_EXPORT aura::Window* GetTransientParent(aura::Window* window); 57 WM_EXPORT aura::Window* GetTransientParent(aura::Window* window);
69 WM_EXPORT const aura::Window* GetTransientParent( 58 WM_EXPORT const aura::Window* GetTransientParent(
70 const aura::Window* window); 59 const aura::Window* window);
71 WM_EXPORT const std::vector<aura::Window*>& GetTransientChildren( 60 WM_EXPORT const std::vector<aura::Window*>& GetTransientChildren(
72 const aura::Window* window); 61 const aura::Window* window);
73 WM_EXPORT void AddTransientChild(aura::Window* parent, aura::Window* child); 62 WM_EXPORT void AddTransientChild(aura::Window* parent, aura::Window* child);
74 WM_EXPORT void RemoveTransientChild(aura::Window* parent, aura::Window* child); 63 WM_EXPORT void RemoveTransientChild(aura::Window* parent, aura::Window* child);
75 64
76 // Returns true if |window| has |ancestor| as a transient ancestor. A transient 65 // Returns true if |window| has |ancestor| as a transient ancestor. A transient
77 // ancestor is found by following the transient parent chain of the window. 66 // ancestor is found by following the transient parent chain of the window.
78 WM_EXPORT bool HasTransientAncestor(const aura::Window* window, 67 WM_EXPORT bool HasTransientAncestor(const aura::Window* window,
79 const aura::Window* ancestor); 68 const aura::Window* ancestor);
80 69
81 } // namespace wm 70 } // namespace wm
82 71
83 #endif // UI_WM_CORE_WINDOW_UTIL_H_ 72 #endif // UI_WM_CORE_WINDOW_UTIL_H_
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