| // Copyright 2014 The Chromium Authors |
| // Use of this source code is governed by a BSD-style license that can be |
| // found in the LICENSE file. |
| |
| #ifndef THIRD_PARTY_BLINK_RENDERER_CORE_DOM_SCOPED_WINDOW_FOCUS_ALLOWED_INDICATOR_H_ |
| #define THIRD_PARTY_BLINK_RENDERER_CORE_DOM_SCOPED_WINDOW_FOCUS_ALLOWED_INDICATOR_H_ |
| |
| #include "third_party/blink/renderer/core/execution_context/execution_context.h" |
| |
| namespace blink { |
| |
| class ScopedWindowFocusAllowedIndicator final { |
| USING_FAST_MALLOC(ScopedWindowFocusAllowedIndicator); |
| |
| public: |
| explicit ScopedWindowFocusAllowedIndicator( |
| ExecutionContext* execution_context) |
| : execution_context_(execution_context) { |
| execution_context->AllowWindowInteraction(); |
| } |
| ScopedWindowFocusAllowedIndicator(const ScopedWindowFocusAllowedIndicator&) = |
| delete; |
| ScopedWindowFocusAllowedIndicator& operator=( |
| const ScopedWindowFocusAllowedIndicator&) = delete; |
| ~ScopedWindowFocusAllowedIndicator() { |
| execution_context_->ConsumeWindowInteraction(); |
| } |
| |
| private: |
| // This doesn't create a cycle because ScopedWindowFocusAllowedIndicator |
| // is used only on a machine stack. |
| Persistent<ExecutionContext> execution_context_; |
| }; |
| |
| } // namespace blink |
| |
| #endif // THIRD_PARTY_BLINK_RENDERER_CORE_DOM_SCOPED_WINDOW_FOCUS_ALLOWED_INDICATOR_H_ |