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      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 void PlatformKeyboardEvent::disambiguateKeyDownEvent(Type type, bool backwardCompatibilityMode)
     41 {
     42 #if OS(WINDOWS)
     43     // No KeyDown events on Windows to disambiguate.
     44     ASSERT_NOT_REACHED();
     45 #else
     46     // Can only change type from KeyDown to RawKeyDown or Char, as we lack information for other conversions.
     47     ASSERT(m_type == KeyDown);
     48     ASSERT(type == RawKeyDown || type == Char);
     49     m_type = type;
     50     if (backwardCompatibilityMode)
     51         return;
     52 
     53     if (type == RawKeyDown) {
     54         m_text = String();
     55         m_unmodifiedText = String();
     56     } else {
     57         m_keyIdentifier = String();
     58         m_windowsVirtualKeyCode = 0;
     59 #if OS(DARWIN)
     60         if (m_text.length() == 1 && (m_text[0U] >= 0xF700 && m_text[0U] <= 0xF7FF)) {
     61             // According to NSEvents.h, OpenStep reserves the range 0xF700-0xF8FF for function keys. However, some actual private use characters
     62             // happen to be in this range, e.g. the Apple logo (Option+Shift+K).
     63             // 0xF7FF is an arbitrary cut-off.
     64             m_text = String();
     65             m_unmodifiedText = String();
     66         }
     67 #endif
     68     }
     69 #endif
     70 }
     71 
     72 bool PlatformKeyboardEvent::currentCapsLockState()
     73 {
     74 #if OS(WINDOWS)
     75     // FIXME: Does this even work inside the sandbox?
     76     return GetKeyState(VK_CAPITAL) & 1;
     77 #elif OS(DARWIN)
     78     return GetCurrentKeyModifiers() & alphaLock;
     79 #else
     80     notImplemented();
     81     return false;
     82 #endif
     83 }
     84 
     85 } // namespace WebCore
     86