1 /*
2 * Copyright (C) 2006, 2007 Apple Inc. All rights reserved.
3 * Copyright (C) 2008, 2009 Google Inc.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
7 * are met:
8 * 1. Redistributions of source code must retain the above copyright
9 * notice, this list of conditions and the following disclaimer.
10 * 2. Redistributions in binary form must reproduce the above copyright
11 * notice, this list of conditions and the following disclaimer in the
12 * documentation and/or other materials provided with the distribution.
13 *
14 * THIS SOFTWARE IS PROVIDED BY APPLE COMPUTER, INC. ``AS IS'' AND ANY
15 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
16 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
17 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE COMPUTER, INC. OR
18 * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
19 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
20 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
21 * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
22 * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
23 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
24 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
25 */
26
27 #include "config.h"
28 #include "platform/PlatformKeyboardEvent.h"
29
30 #if OS(WIN)
31 #include <windows.h>
32 #elif OS(MACOSX)
33 #import <Carbon/Carbon.h>
34 #else
35 #include "platform/NotImplemented.h"
36 #endif
37
38 namespace WebCore {
39
40 #if OS(WIN)
41 static const unsigned short HIGHBITMASKSHORT = 0x8000;
42 #endif
43
disambiguateKeyDownEvent(Type type)44 void PlatformKeyboardEvent::disambiguateKeyDownEvent(Type type)
45 {
46 #if OS(WIN)
47 // No KeyDown events on Windows to disambiguate.
48 ASSERT_NOT_REACHED();
49 #else
50 // Can only change type from KeyDown to RawKeyDown or Char, as we lack information for other conversions.
51 ASSERT(m_type == PlatformEvent::KeyDown);
52 ASSERT(type == PlatformEvent::RawKeyDown || type == PlatformEvent::Char);
53 m_type = type;
54
55 if (type == RawKeyDown) {
56 m_text = String();
57 m_unmodifiedText = String();
58 } else {
59 m_keyIdentifier = String();
60 m_windowsVirtualKeyCode = 0;
61 #if OS(MACOSX)
62 if (m_text.length() == 1 && (m_text[0U] >= 0xF700 && m_text[0U] <= 0xF7FF)) {
63 // According to NSEvents.h, OpenStep reserves the range 0xF700-0xF8FF for function keys. However, some actual private use characters
64 // happen to be in this range, e.g. the Apple logo (Option+Shift+K).
65 // 0xF7FF is an arbitrary cut-off.
66 m_text = String();
67 m_unmodifiedText = String();
68 }
69 #endif
70 }
71 #endif
72 }
73
currentCapsLockState()74 bool PlatformKeyboardEvent::currentCapsLockState()
75 {
76 #if OS(WIN)
77 // FIXME: Does this even work inside the sandbox?
78 return GetKeyState(VK_CAPITAL) & 1;
79 #elif OS(MACOSX)
80 return GetCurrentKeyModifiers() & alphaLock;
81 #else
82 notImplemented();
83 return false;
84 #endif
85 }
86
getCurrentModifierState(bool & shiftKey,bool & ctrlKey,bool & altKey,bool & metaKey)87 void PlatformKeyboardEvent::getCurrentModifierState(bool& shiftKey, bool& ctrlKey, bool& altKey, bool& metaKey)
88 {
89 #if OS(WIN)
90 shiftKey = GetKeyState(VK_SHIFT) & HIGHBITMASKSHORT;
91 ctrlKey = GetKeyState(VK_CONTROL) & HIGHBITMASKSHORT;
92 altKey = GetKeyState(VK_MENU) & HIGHBITMASKSHORT;
93 metaKey = false;
94 #elif OS(MACOSX)
95 UInt32 currentModifiers = GetCurrentKeyModifiers();
96 shiftKey = currentModifiers & ::shiftKey;
97 ctrlKey = currentModifiers & ::controlKey;
98 altKey = currentModifiers & ::optionKey;
99 metaKey = currentModifiers & ::cmdKey;
100 #else
101 shiftKey = false;
102 ctrlKey = false;
103 altKey = false;
104 metaKey = false;
105 notImplemented();
106 #endif
107 }
108
109 } // namespace WebCore
110