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1 // Copyright 2014 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 "ui/views/controls/menu/menu_message_pump_dispatcher_win.h" | |
6 | |
7 #include <windowsx.h> | |
8 | |
9 #include "ui/events/event_utils.h" | |
10 #include "ui/events/keycodes/keyboard_code_conversion.h" | |
11 #include "ui/events/keycodes/keyboard_codes.h" | |
12 #include "ui/views/controls/menu/menu_controller.h" | |
13 #include "ui/views/controls/menu/menu_item_view.h" | |
14 | |
15 namespace views { | |
16 namespace internal { | |
17 | |
18 MenuMessagePumpDispatcher::MenuMessagePumpDispatcher(MenuController* controller) | |
19 : menu_controller_(controller) {} | |
20 | |
21 MenuMessagePumpDispatcher::~MenuMessagePumpDispatcher() {} | |
22 | |
23 uint32_t MenuMessagePumpDispatcher::Dispatch(const MSG& msg) { | |
24 DCHECK(menu_controller_->IsBlockingRun()); | |
25 | |
26 bool should_perform_default = true; | |
27 if (menu_controller_->exit_type() != MenuController::EXIT_ALL && | |
28 menu_controller_->exit_type() != MenuController::EXIT_DESTROYED) { | |
29 // NOTE: we don't get WM_ACTIVATE or anything else interesting in here. | |
30 switch (msg.message) { | |
31 // NOTE: focus wasn't changed when the menu was shown. As such, don't | |
32 // dispatch key events otherwise the focused window will get the events. | |
33 case WM_KEYDOWN: { | |
34 menu_controller_->OnKeyDown(ui::KeyboardCodeFromNative(msg)); | |
35 TranslateMessage(&msg); | |
36 should_perform_default = false; | |
37 break; | |
38 } | |
39 case WM_CHAR: { | |
40 menu_controller_->SelectByChar(static_cast<base::char16>(msg.wParam)); | |
41 should_perform_default = false; | |
42 break; | |
43 } | |
44 case WM_KEYUP: | |
45 case WM_SYSKEYUP: | |
46 // We may have been shown on a system key, as such don't do anything | |
47 // here. If another system key is pushed we'll get a WM_SYSKEYDOWN and | |
48 // close the menu. | |
49 should_perform_default = false; | |
50 break; | |
51 | |
52 case WM_CANCELMODE: | |
53 case WM_SYSKEYDOWN: | |
54 // Exit immediately on system keys. | |
55 menu_controller_->Cancel(MenuController::EXIT_ALL); | |
56 should_perform_default = false; | |
57 break; | |
58 | |
59 default: | |
60 break; | |
61 } | |
62 } | |
63 | |
64 menu_controller_->TerminateNestedMessageLoopIfNecessary(); | |
65 return should_perform_default ? POST_DISPATCH_PERFORM_DEFAULT | |
66 : POST_DISPATCH_NONE; | |
67 } | |
68 | |
69 } // namespace internal | |
70 } // namespace views | |
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