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| 1 // Copyright (c) 2011 The Chromium Authors. All rights reserved. | 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 | 2 // Use of this source code is governed by a BSD-style license that can be |
| 3 // found in the LICENSE file. | 3 // found in the LICENSE file. |
| 4 | 4 |
| 5 #include "chrome/browser/ui/views/unhandled_keyboard_event_handler.h" | 5 #include "chrome/browser/ui/views/unhandled_keyboard_event_handler.h" |
| 6 | 6 |
| 7 #include "base/logging.h" | |
| 8 #include "ui/views/focus/focus_manager.h" | |
| 9 | |
| 10 UnhandledKeyboardEventHandler::UnhandledKeyboardEventHandler() { | |
| 11 ignore_next_char_event_ = false; | |
| 12 } | |
| 13 | |
| 14 UnhandledKeyboardEventHandler::~UnhandledKeyboardEventHandler() { | 7 UnhandledKeyboardEventHandler::~UnhandledKeyboardEventHandler() { |
| 15 } | 8 } |
| 16 | |
| 17 void UnhandledKeyboardEventHandler::HandleKeyboardEvent( | |
| 18 const NativeWebKeyboardEvent& event, | |
| 19 views::FocusManager* focus_manager) { | |
| 20 if (!focus_manager) { | |
| 21 NOTREACHED(); | |
| 22 return; | |
| 23 } | |
| 24 // Previous calls to TranslateMessage can generate Char events as well as | |
| 25 // RawKeyDown events, even if the latter triggered an accelerator. In these | |
| 26 // cases, we discard the Char events. | |
| 27 if (event.type == WebKit::WebInputEvent::Char && ignore_next_char_event_) { | |
| 28 ignore_next_char_event_ = false; | |
| 29 return; | |
| 30 } | |
| 31 // It's necessary to reset this flag, because a RawKeyDown event may not | |
| 32 // always generate a Char event. | |
| 33 ignore_next_char_event_ = false; | |
| 34 | |
| 35 if (event.type == WebKit::WebInputEvent::RawKeyDown) { | |
| 36 ui::Accelerator accelerator( | |
| 37 static_cast<ui::KeyboardCode>(event.windowsKeyCode), | |
| 38 (event.modifiers & NativeWebKeyboardEvent::ShiftKey) == | |
| 39 NativeWebKeyboardEvent::ShiftKey, | |
| 40 (event.modifiers & NativeWebKeyboardEvent::ControlKey) == | |
| 41 NativeWebKeyboardEvent::ControlKey, | |
| 42 (event.modifiers & NativeWebKeyboardEvent::AltKey) == | |
| 43 NativeWebKeyboardEvent::AltKey); | |
| 44 | |
| 45 // This is tricky: we want to set ignore_next_char_event_ if | |
| 46 // ProcessAccelerator returns true. But ProcessAccelerator might delete | |
| 47 // |this| if the accelerator is a "close tab" one. So we speculatively | |
| 48 // set the flag and fix it if no event was handled. | |
| 49 ignore_next_char_event_ = true; | |
| 50 | |
| 51 if (focus_manager->ProcessAccelerator(accelerator)) { | |
| 52 return; | |
| 53 } | |
| 54 | |
| 55 // ProcessAccelerator didn't handle the accelerator, so we know both | |
| 56 // that |this| is still valid, and that we didn't want to set the flag. | |
| 57 ignore_next_char_event_ = false; | |
| 58 } | |
| 59 | |
| 60 #if defined(OS_WIN) && !defined(USE_AURA) | |
| 61 // Any unhandled keyboard/character messages should be defproced. | |
| 62 // This allows stuff like F10, etc to work correctly. | |
| 63 DefWindowProc(event.os_event.hwnd, event.os_event.message, | |
| 64 event.os_event.wParam, event.os_event.lParam); | |
| 65 #endif | |
| 66 } | |
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