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| 1 // Copyright (c) 2011 The Chromium Authors. All rights reserved. | |
| 2 // Use of this source code is governed by a BSD-style license that can be | |
| 3 // found in the LICENSE file. | |
| 4 | |
| 5 #include "views/focus/accelerator_handler.h" | |
| 6 | |
| 7 #include "ui/base/keycodes/keyboard_codes.h" | |
| 8 #include "ui/base/keycodes/keyboard_code_conversion_win.h" | |
| 9 #include "views/events/event.h" | |
| 10 #include "views/focus/focus_manager.h" | |
| 11 #include "views/widget/widget.h" | |
| 12 | |
| 13 namespace views { | |
| 14 | |
| 15 AcceleratorHandler::AcceleratorHandler() { | |
| 16 } | |
| 17 | |
| 18 bool AcceleratorHandler::Dispatch(const MSG& msg) { | |
| 19 bool process_message = true; | |
| 20 | |
| 21 if (msg.message >= WM_KEYFIRST && msg.message <= WM_KEYLAST) { | |
| 22 Widget* widget = Widget::GetTopLevelWidgetForNativeView(msg.hwnd); | |
| 23 FocusManager* focus_manager = widget ? widget->GetFocusManager() : NULL; | |
| 24 if (focus_manager) { | |
| 25 switch (msg.message) { | |
| 26 case WM_KEYDOWN: | |
| 27 case WM_SYSKEYDOWN: { | |
| 28 KeyEvent event(msg); | |
| 29 process_message = focus_manager->OnKeyEvent(event); | |
| 30 if (!process_message) { | |
| 31 // Record that this key is pressed so we can remember not to | |
| 32 // translate and dispatch the associated WM_KEYUP. | |
| 33 pressed_keys_.insert(msg.wParam); | |
| 34 } | |
| 35 break; | |
| 36 } | |
| 37 case WM_KEYUP: | |
| 38 case WM_SYSKEYUP: { | |
| 39 std::set<WPARAM>::iterator iter = pressed_keys_.find(msg.wParam); | |
| 40 if (iter != pressed_keys_.end()) { | |
| 41 // Don't translate/dispatch the KEYUP since we have eaten the | |
| 42 // associated KEYDOWN. | |
| 43 pressed_keys_.erase(iter); | |
| 44 return true; | |
| 45 } | |
| 46 break; | |
| 47 } | |
| 48 } | |
| 49 } | |
| 50 } | |
| 51 | |
| 52 if (process_message) { | |
| 53 TranslateMessage(&msg); | |
| 54 DispatchMessage(&msg); | |
| 55 } | |
| 56 | |
| 57 return true; | |
| 58 } | |
| 59 | |
| 60 } // namespace views | |
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