| // Copyright 2013 The Chromium Authors. All rights reserved. |
| // Use of this source code is governed by a BSD-style license that can be |
| // found in the LICENSE file. |
| |
| #ifndef CHROME_BROWSER_CHROMEOS_DISPLAY_OUTPUT_PROTECTION_DELEGATE_H_ |
| #define CHROME_BROWSER_CHROMEOS_DISPLAY_OUTPUT_PROTECTION_DELEGATE_H_ |
| |
| #include <stdint.h> |
| |
| #include <memory> |
| |
| #include "base/macros.h" |
| #include "base/memory/weak_ptr.h" |
| #include "ui/aura/window.h" |
| #include "ui/aura/window_observer.h" |
| |
| namespace chromeos { |
| |
| // A class to query output protection status and/or enable output protection. |
| // All methods except constructor should be invoked in UI thread. |
| class OutputProtectionDelegate : public aura::WindowObserver { |
| public: |
| typedef base::Callback<void(bool /* success */, |
| uint32_t /* link_mask */, |
| uint32_t /* protection_mask*/)> |
| QueryStatusCallback; |
| typedef base::Callback<void(bool /* success */)> SetProtectionCallback; |
| |
| OutputProtectionDelegate(int render_process_id, int render_frame_id); |
| ~OutputProtectionDelegate() override; |
| |
| // aura::WindowObserver overrides. |
| void OnWindowHierarchyChanged( |
| const aura::WindowObserver::HierarchyChangeParams& params) override; |
| void OnWindowDestroying(aura::Window* window) override; |
| |
| void QueryStatus(const QueryStatusCallback& callback); |
| void SetProtection(uint32_t desired_method_mask, |
| const SetProtectionCallback& callback); |
| |
| // Display content protection controller interface. |
| class Controller { |
| public: |
| Controller(); |
| virtual ~Controller(); |
| virtual void QueryStatus(int64_t display_id, |
| const QueryStatusCallback& callback) = 0; |
| virtual void SetProtection(int64_t display_id, |
| uint32_t desired_method_mask, |
| const SetProtectionCallback& callback) = 0; |
| |
| private: |
| DISALLOW_COPY_AND_ASSIGN(Controller); |
| }; |
| |
| private: |
| bool InitializeControllerIfNecessary(); |
| |
| // Used to lookup the WebContents associated with the render frame. |
| int render_process_id_; |
| int render_frame_id_; |
| |
| // Native window being observed. |
| aura::Window* window_; |
| |
| // The display id which the renderer currently uses. |
| int64_t display_id_; |
| |
| // The last desired method mask. Will enable this mask on new display if |
| // renderer changes display. |
| uint32_t desired_method_mask_; |
| |
| // The display content protection controller. |
| std::unique_ptr<Controller> controller_; |
| |
| base::WeakPtrFactory<OutputProtectionDelegate> weak_ptr_factory_; |
| |
| DISALLOW_COPY_AND_ASSIGN(OutputProtectionDelegate); |
| }; |
| |
| } // namespace chromeos |
| |
| #endif // CHROME_BROWSER_CHROMEOS_DISPLAY_OUTPUT_PROTECTION_DELEGATE_H_ |