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 "PlatformKeyboardEvent.h"
29
30 #if OS(WINDOWS)
31 #include <windows.h>
32 #elif OS(DARWIN)
33 #import <Carbon/Carbon.h>
34 #else
35 #include "NotImplemented.h"
36 #endif
37
38 namespace WebCore {
39
40 #if OS(WINDOWS)
41 static const unsigned short HIGH_BIT_MASK_SHORT = 0x8000;
42 #endif
43
disambiguateKeyDownEvent(Type type,bool backwardCompatibilityMode)44 void PlatformKeyboardEvent::disambiguateKeyDownEvent(Type type, bool backwardCompatibilityMode)
45 {
46 #if OS(WINDOWS)
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 == KeyDown);
52 ASSERT(type == RawKeyDown || type == Char);
53 m_type = type;
54 if (backwardCompatibilityMode)
55 return;
56
57 if (type == RawKeyDown) {
58 m_text = String();
59 m_unmodifiedText = String();
60 } else {
61 m_keyIdentifier = String();
62 m_windowsVirtualKeyCode = 0;
63 #if OS(DARWIN)
64 if (m_text.length() == 1 && (m_text[0U] >= 0xF700 && m_text[0U] <= 0xF7FF)) {
65 // According to NSEvents.h, OpenStep reserves the range 0xF700-0xF8FF for function keys. However, some actual private use characters
66 // happen to be in this range, e.g. the Apple logo (Option+Shift+K).
67 // 0xF7FF is an arbitrary cut-off.
68 m_text = String();
69 m_unmodifiedText = String();
70 }
71 #endif
72 }
73 #endif
74 }
75
currentCapsLockState()76 bool PlatformKeyboardEvent::currentCapsLockState()
77 {
78 #if OS(WINDOWS)
79 // FIXME: Does this even work inside the sandbox?
80 return GetKeyState(VK_CAPITAL) & 1;
81 #elif OS(DARWIN)
82 return GetCurrentKeyModifiers() & alphaLock;
83 #else
84 notImplemented();
85 return false;
86 #endif
87 }
88
getCurrentModifierState(bool & shiftKey,bool & ctrlKey,bool & altKey,bool & metaKey)89 void PlatformKeyboardEvent::getCurrentModifierState(bool& shiftKey, bool& ctrlKey, bool& altKey, bool& metaKey)
90 {
91 #if OS(WINDOWS)
92 shiftKey = GetKeyState(VK_SHIFT) & HIGH_BIT_MASK_SHORT;
93 ctrlKey = GetKeyState(VK_CONTROL) & HIGH_BIT_MASK_SHORT;
94 altKey = GetKeyState(VK_MENU) & HIGH_BIT_MASK_SHORT;
95 metaKey = false;
96 #elif OS(DARWIN)
97 UInt32 currentModifiers = GetCurrentKeyModifiers();
98 shiftKey = currentModifiers & ::shiftKey;
99 ctrlKey = currentModifiers & ::controlKey;
100 altKey = currentModifiers & ::optionKey;
101 metaKey = currentModifiers & ::cmdKey;
102 #else
103 notImplemented();
104 #endif
105 }
106
107 } // namespace WebCore
108