Index: ui/base/accelerators/accelerator_history.h |
diff --git a/ui/base/accelerators/accelerator_history.h b/ui/base/accelerators/accelerator_history.h |
new file mode 100644 |
index 0000000000000000000000000000000000000000..3f29afef743b68eb201fdff12eee5d41ead2786d |
--- /dev/null |
+++ b/ui/base/accelerators/accelerator_history.h |
@@ -0,0 +1,42 @@ |
+// Copyright 2014 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 UI_BASE_ACCELERATORS_ACCELERATOR_HISTORY_H_ |
+#define UI_BASE_ACCELERATORS_ACCELERATOR_HISTORY_H_ |
+ |
+#include "base/memory/singleton.h" |
+#include "ui/base/accelerators/accelerator.h" |
+#include "ui/base/ui_base_export.h" |
+#include "ui/events/event.h" |
+#include "ui/events/event_handler.h" |
+ |
+namespace ui { |
+ |
+// Keeps track of the system-wide current and the most recent previous |
+// key accelerators. |
+class UI_BASE_EXPORT AcceleratorHistory { |
+ public: |
+ AcceleratorHistory(); |
+ ~AcceleratorHistory(); |
+ |
+ // Returns the most recent recorded accelerator. |
+ const Accelerator& GetCurrentAccelerator() const; |
+ |
+ // Returns the most recent previously recorded accelerator that is different |
+ // than the current. |
+ const Accelerator& GetPreviousAccelerator() const; |
sky
2014/11/18 22:11:48
inline these and name to match the fields, eg prev
afakhry
2014/11/18 23:08:40
Done.
|
+ |
+ // Stores the given |accelerator| only if it's different than the currently |
+ // stored one. |
+ void StoreCurrentAccelerator(const Accelerator& accelerator); |
+ |
+ private: |
+ |
sky
2014/11/18 22:11:48
nit: no newline here.
afakhry
2014/11/18 23:08:40
Done.
|
+ Accelerator current_accelerator_; |
+ Accelerator previous_accelerator_; |
+}; |
sky
2014/11/18 22:11:48
DISALLOW...
afakhry
2014/11/18 23:08:40
Done.
|
+ |
+}; // namespace ui |
+ |
+#endif // UI_BASE_ACCELERATORS_ACCELERATOR_HISTORY_H_ |