1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
|
// Copyright (c) 2010 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 "chrome/browser/views/unhandled_keyboard_event_handler.h"
#include "base/logging.h"
#include "views/focus/focus_manager.h"
UnhandledKeyboardEventHandler::UnhandledKeyboardEventHandler() {
#if defined(OS_WIN)
ignore_next_char_event_ = false;
#endif
}
UnhandledKeyboardEventHandler::~UnhandledKeyboardEventHandler() {
}
void UnhandledKeyboardEventHandler::HandleKeyboardEvent(
const NativeWebKeyboardEvent& event,
views::FocusManager* focus_manager) {
if (!focus_manager) {
NOTREACHED();
return;
}
#if defined(OS_WIN)
// Previous calls to TranslateMessage can generate Char events as well as
// RawKeyDown events, even if the latter triggered an accelerator. In these
// cases, we discard the Char events.
if (event.type == WebKit::WebInputEvent::Char && ignore_next_char_event_) {
ignore_next_char_event_ = false;
return;
}
// It's necessary to reset this flag, because a RawKeyDown event may not
// always generate a Char event.
ignore_next_char_event_ = false;
#endif
if (event.type == WebKit::WebInputEvent::RawKeyDown) {
views::Accelerator accelerator(
static_cast<base::KeyboardCode>(event.windowsKeyCode),
(event.modifiers & NativeWebKeyboardEvent::ShiftKey) ==
NativeWebKeyboardEvent::ShiftKey,
(event.modifiers & NativeWebKeyboardEvent::ControlKey) ==
NativeWebKeyboardEvent::ControlKey,
(event.modifiers & NativeWebKeyboardEvent::AltKey) ==
NativeWebKeyboardEvent::AltKey);
#if defined(OS_WIN)
// This is tricky: we want to set ignore_next_char_event_ if
// ProcessAccelerator returns true. But ProcessAccelerator might delete
// |this| if the accelerator is a "close tab" one. So we speculatively
// set the flag and fix it if no event was handled.
ignore_next_char_event_ = true;
#endif
if (focus_manager->ProcessAccelerator(accelerator)) {
return;
}
#if defined(OS_WIN)
// ProcessAccelerator didn't handle the accelerator, so we know both
// that |this| is still valid, and that we didn't want to set the flag.
ignore_next_char_event_ = false;
#endif
}
#if defined(OS_WIN)
// Any unhandled keyboard/character messages should be defproced.
// This allows stuff like F10, etc to work correctly.
DefWindowProc(event.os_event.hwnd, event.os_event.message,
event.os_event.wParam, event.os_event.lParam);
#endif
}
|
