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// 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.
#include "ash/accelerators/accelerator_dispatcher.h"
#include "base/memory/scoped_ptr.h"
#include "base/message_loop/message_pump_dispatcher.h"
#include "base/run_loop.h"
#include "ui/events/event.h"
using base::MessagePumpDispatcher;
namespace ash {
namespace {
bool IsKeyEvent(const MSG& msg) {
return msg.message == WM_KEYDOWN || msg.message == WM_SYSKEYDOWN ||
msg.message == WM_KEYUP || msg.message == WM_SYSKEYUP;
}
} // namespace
class AcceleratorDispatcherWin : public AcceleratorDispatcher,
public MessagePumpDispatcher {
public:
explicit AcceleratorDispatcherWin(MessagePumpDispatcher* nested)
: nested_dispatcher_(nested) {}
virtual ~AcceleratorDispatcherWin() {}
private:
// AcceleratorDispatcher:
virtual scoped_ptr<base::RunLoop> CreateRunLoop() OVERRIDE {
return scoped_ptr<base::RunLoop>(new base::RunLoop(this));
}
// MessagePumpDispatcher:
virtual uint32_t Dispatch(const MSG& event) OVERRIDE {
if (IsKeyEvent(event)) {
ui::KeyEvent key_event(event, false);
if (MenuClosedForPossibleAccelerator(key_event))
return POST_DISPATCH_QUIT_LOOP;
if (AcceleratorProcessedForKeyEvent(key_event))
return POST_DISPATCH_NONE;
}
return nested_dispatcher_ ? nested_dispatcher_->Dispatch(event)
: POST_DISPATCH_PERFORM_DEFAULT;
}
MessagePumpDispatcher* nested_dispatcher_;
DISALLOW_COPY_AND_ASSIGN(AcceleratorDispatcherWin);
};
scoped_ptr<AcceleratorDispatcher> AcceleratorDispatcher::Create(
MessagePumpDispatcher* nested_dispatcher) {
return scoped_ptr<AcceleratorDispatcher>(
new AcceleratorDispatcherWin(nested_dispatcher));
}
} // namespace ash
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