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 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 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 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