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1 // Copyright 2016 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 #ifndef SERVICES_UI_DISPLAY_PLATFORM_SCREEN_IMPL_OZONE_H_ | |
6 #define SERVICES_UI_DISPLAY_PLATFORM_SCREEN_IMPL_OZONE_H_ | |
7 | |
8 #include <stdint.h> | |
9 | |
10 #include <set> | |
11 #include <vector> | |
12 | |
13 #include "base/callback.h" | |
14 #include "base/macros.h" | |
15 #include "services/ui/display/platform_screen.h" | |
16 #include "ui/display/chromeos/display_configurator.h" | |
17 #include "ui/display/display.h" | |
18 | |
19 namespace display { | |
20 | |
21 // PlatformScreenImplOzone provides the necessary functionality to configure all | |
22 // attached physical displays on the ozone platform. | |
23 class PlatformScreenImplOzone : public PlatformScreen, | |
24 public ui::DisplayConfigurator::Observer { | |
25 public: | |
26 PlatformScreenImplOzone(); | |
27 ~PlatformScreenImplOzone() override; | |
28 | |
29 // PlatformScreen: | |
30 void Init(PlatformScreenDelegate* delegate) override; | |
31 int64_t GetPrimaryDisplayId() const override; | |
32 | |
33 private: | |
34 // TODO(kylechar): This struct is just temporary until we migrate | |
35 // DisplayManager code out of ash so it can be used here. | |
36 struct DisplayInfo { | |
37 DisplayInfo(int64_t new_id, const gfx::Rect& new_bounds) | |
38 : id(new_id), bounds(new_bounds) {} | |
39 | |
40 int64_t id; | |
41 // The display bounds. | |
42 gfx::Rect bounds; | |
43 // The display bounds have been modified and delegate should be updated. | |
44 bool modified = false; | |
45 // The display has been removed and delegate should be updated. | |
46 bool removed = false; | |
47 }; | |
48 using CachedDisplayIterator = std::vector<DisplayInfo>::iterator; | |
49 | |
50 // Processes list of display snapshots and sets |removed| on any displays that | |
51 // have been removed. Updates |primary_display_id_| if the primary display was | |
52 // removed. Does not remove displays from |cached_displays_| or send updates | |
53 // to delegate. | |
54 void ProcessRemovedDisplays( | |
55 const ui::DisplayConfigurator::DisplayStateList& snapshots); | |
56 | |
57 // Processes list of display snapshots and updates the bounds of any displays | |
58 // in |cached_displays_| that have changed size. Does not send updates to | |
59 // delegate. | |
60 void ProcessModifiedDisplays( | |
61 const ui::DisplayConfigurator::DisplayStateList& snapshots); | |
62 | |
63 // Looks at |cached_displays_| for modified or removed displays. Also updates | |
64 // display bounds in response to modified or removed displays. Sends updates | |
65 // to the delegate when appropriate by calling OnDisplayModified() or | |
66 // OnDisplayRemoved(). Makes at most one call to delegate per display. | |
67 // | |
68 // Usually used after ProcessRemovedDisplays() and ProcessModifiedDisplays(). | |
69 void UpdateCachedDisplays(); | |
70 | |
71 // Processes list of display snapshots and adds any new displays to | |
72 // |cached_displays_|. Updates delegate by calling OnDisplayAdded(). | |
73 void AddNewDisplays( | |
74 const ui::DisplayConfigurator::DisplayStateList& snapshots); | |
75 | |
76 // Returns an iterator to the cached display with |display_id| or an end | |
77 // iterator if there is no display with that id. | |
78 CachedDisplayIterator GetCachedDisplayIterator(int64_t display_id); | |
79 | |
80 // ui::DisplayConfigurator::Observer: | |
81 void OnDisplayModeChanged( | |
82 const ui::DisplayConfigurator::DisplayStateList& displays) override; | |
83 void OnDisplayModeChangeFailed( | |
84 const ui::DisplayConfigurator::DisplayStateList& displays, | |
85 ui::MultipleDisplayState failed_new_state) override; | |
86 | |
87 PlatformScreenDelegate* delegate_ = nullptr; | |
88 ui::DisplayConfigurator display_configurator_; | |
89 | |
90 // TODO(kylechar): These values can/should be replaced by DisplayLayout. | |
91 int64_t primary_display_id_ = display::Display::kInvalidDisplayID; | |
92 std::vector<DisplayInfo> cached_displays_; | |
93 gfx::Point next_display_origin_; | |
94 | |
95 DISALLOW_COPY_AND_ASSIGN(PlatformScreenImplOzone); | |
96 }; | |
97 | |
98 } // namespace display | |
99 | |
100 #endif // SERVICES_UI_DISPLAY_PLATFORM_SCREEN_IMPL_OZONE_H_ | |
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