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Unified Diff: ui/base/accelerators/accelerator_history.h

Issue 727583002: Regression: Search+Key pops up app launcher (Closed) Base URL: https://chromium.googlesource.com/chromium/src.git@master
Patch Set: Created 6 years, 1 month ago
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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_

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