| // 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 ASH_DISPLAY_OUTPUT_PROTECTION_DELEGATE_H_ |
| #define ASH_DISPLAY_OUTPUT_PROTECTION_DELEGATE_H_ |
| |
| #include <stdint.h> |
| |
| #include <memory> |
| |
| #include "ash/ash_export.h" |
| #include "base/macros.h" |
| #include "ui/aura/window.h" |
| #include "ui/aura/window_observer.h" |
| #include "ui/display/display_observer.h" |
| #include "ui/display/types/display_constants.h" |
| |
| namespace ash { |
| |
| // Proxies output protection requests for an associated window, and renews them |
| // when the window is reparented to another display. |
| class ASH_EXPORT OutputProtectionDelegate : public aura::WindowObserver, |
| public display::DisplayObserver { |
| public: |
| using QueryStatusCallback = base::OnceCallback< |
| void(bool success, uint32_t connection_mask, uint32_t protection_mask)>; |
| using SetProtectionCallback = base::OnceCallback<void(bool success)>; |
| |
| explicit OutputProtectionDelegate(aura::Window* window); |
| ~OutputProtectionDelegate() override; |
| |
| void QueryStatus(QueryStatusCallback callback); |
| void SetProtection(uint32_t protection_mask, SetProtectionCallback callback); |
| |
| private: |
| // display::DisplayObserver: |
| void OnDisplayMetricsChanged(const display::Display& display, |
| uint32_t changed_metrics) override; |
| |
| // aura::WindowObserver: |
| void OnWindowHierarchyChanged( |
| const aura::WindowObserver::HierarchyChangeParams& params) override; |
| void OnWindowDestroying(aura::Window* window) override; |
| |
| void OnWindowMayHaveMovedToAnotherDisplay(); |
| |
| bool RegisterClientIfNecessary(); |
| |
| // Native window being observed. |
| aura::Window* window_ = nullptr; |
| |
| // Display ID of the observed window. |
| int64_t display_id_; |
| |
| // Last requested ContentProtectionMethod bitmask, applied when the observed |
| // window moves to another display. |
| uint32_t protection_mask_ = display::CONTENT_PROTECTION_METHOD_NONE; |
| |
| // RAII wrapper to register/unregister ContentProtectionManager client. |
| struct ClientIdHolder; |
| std::unique_ptr<ClientIdHolder> client_; |
| |
| DISALLOW_COPY_AND_ASSIGN(OutputProtectionDelegate); |
| }; |
| |
| } // namespace ash |
| |
| #endif // ASH_DISPLAY_OUTPUT_PROTECTION_DELEGATE_H_ |