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| 1 // Copyright 2014 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 UI_DISPLAY_CHROMEOS_CONFIGURATION_TASK_H_ | |
| 6 #define UI_DISPLAY_CHROMEOS_CONFIGURATION_TASK_H_ | |
| 7 | |
| 8 #include <stddef.h> | |
| 9 | |
| 10 #include <queue> | |
| 11 #include <vector> | |
| 12 | |
| 13 #include "base/callback.h" | |
| 14 #include "base/macros.h" | |
| 15 #include "base/memory/weak_ptr.h" | |
| 16 #include "ui/display/display_export.h" | |
| 17 #include "ui/gfx/geometry/point.h" | |
| 18 | |
| 19 namespace ui { | |
| 20 | |
| 21 class DisplayMode; | |
| 22 class DisplaySnapshot; | |
| 23 class NativeDisplayDelegate; | |
| 24 | |
| 25 struct DISPLAY_EXPORT DisplayConfigureRequest { | |
| 26 DisplayConfigureRequest(DisplaySnapshot* display, | |
| 27 const DisplayMode* mode, | |
| 28 const gfx::Point& origin); | |
| 29 | |
| 30 DisplaySnapshot* display; | |
| 31 const DisplayMode* mode; | |
| 32 gfx::Point origin; | |
| 33 }; | |
| 34 | |
| 35 // Applies the display configuration asynchronously. | |
| 36 class DISPLAY_EXPORT ConfigureDisplaysTask { | |
| 37 public: | |
| 38 enum Status { | |
| 39 // At least one of the displays failed to apply any mode it supports. | |
| 40 ERROR, | |
| 41 | |
| 42 // The requested configuration was applied. | |
| 43 SUCCESS, | |
| 44 | |
| 45 // At least one of the displays failed to apply the requested | |
| 46 // configuration, but it managed to fall back to another mode. | |
| 47 PARTIAL_SUCCESS, | |
| 48 }; | |
| 49 | |
| 50 typedef base::Callback<void(Status)> ResponseCallback; | |
| 51 | |
| 52 ConfigureDisplaysTask(NativeDisplayDelegate* delegate, | |
| 53 const std::vector<DisplayConfigureRequest>& requests, | |
| 54 const ResponseCallback& callback); | |
| 55 ~ConfigureDisplaysTask(); | |
| 56 | |
| 57 // Starts the configuration task. | |
| 58 void Run(); | |
| 59 | |
| 60 private: | |
| 61 void OnConfigured(size_t index, bool success); | |
| 62 | |
| 63 NativeDisplayDelegate* delegate_; // Not owned. | |
| 64 | |
| 65 std::vector<DisplayConfigureRequest> requests_; | |
| 66 | |
| 67 // When the task finishes executing it runs the callback to notify that the | |
| 68 // task is done and the task status. | |
| 69 ResponseCallback callback_; | |
| 70 | |
| 71 // Stores the indexes of pending requests in |requests_|. | |
| 72 std::queue<size_t> pending_request_indexes_; | |
| 73 | |
| 74 // Used to keep make sure that synchronous executions do not recurse during | |
| 75 // the configuration. | |
| 76 bool is_configuring_; | |
| 77 | |
| 78 // Number of display configured. This is used to check whether there are | |
| 79 // pending requests. | |
| 80 size_t num_displays_configured_; | |
| 81 | |
| 82 Status task_status_; | |
| 83 | |
| 84 base::WeakPtrFactory<ConfigureDisplaysTask> weak_ptr_factory_; | |
| 85 | |
| 86 DISALLOW_COPY_AND_ASSIGN(ConfigureDisplaysTask); | |
| 87 }; | |
| 88 | |
| 89 } // namespace ui | |
| 90 | |
| 91 #endif // UI_DISPLAY_CHROMEOS_CONFIGURATION_TASK_H_ | |
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Chromium Code Reviews
Issue 2540313002:
Split //ui/display and create //ui/display/manager. (Closed)
