WebCore/platform/android/KeyEventAndroid.cpp

   1 /*
   2  * Copyright 2007, The Android Open Source Project
   3  * Copyright (C) 2006, 2007 Apple Inc.  All rights reserved.
   4  * Copyright (C) 2006 Michael Emmel mike.emmel@gmail.com
   5  * Copyright (C) 2007 Holger Hans Peter Freyther
   6  * Copyright (C) 2008 Collabora, Ltd.  All rights reserved.
   7  * All rights reserved.
   8  *
   9  * Redistribution and use in source and binary forms, with or without
  10  * modification, are permitted provided that the following conditions
  11  * are met:
  12  *  * Redistributions of source code must retain the above copyright
  13  *    notice, this list of conditions and the following disclaimer.
  14  *  * Redistributions in binary form must reproduce the above copyright
  15  *    notice, this list of conditions and the following disclaimer in the
  16  *    documentation and/or other materials provided with the distribution.
  17  *
  18  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS ``AS IS'' AND ANY
  19  * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  20  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
  21  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL APPLE COMPUTER, INC. OR
  22  * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
  23  * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
  24  * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
  25  * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
  26  * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  27  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
  28  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  29  */
  30
  31 #include "config.h"
  32 #include "PlatformKeyboardEvent.h"
  33
  34 #include "KeyboardCodes.h"
  35 #include "NotImplemented.h"
  36 #include <ui/KeycodeLabels.h>
  37
  38 namespace WebCore {
  39
  40 // compare to same function in gdk/KeyEventGdk.cpp
  41 static int windowsKeyCodeForKeyEvent(unsigned int keyCode)
  42 {
  43     // Does not provide all key codes, and does not handle all keys.
  44     switch (keyCode) {
  45     case kKeyCodeDel:
  46         return VK_BACK;
  47     case kKeyCodeTab:
  48         return VK_TAB;
  49     case kKeyCodeClear:
  50         return VK_CLEAR;
  51     case kKeyCodeDpadCenter:
  52     case kKeyCodeNewline:
  53         return VK_RETURN;
  54     case kKeyCodeShiftLeft:
  55     case kKeyCodeShiftRight:
  56         return VK_SHIFT;
  57     // back will serve as escape, although we probably do not have access to it
  58     case kKeyCodeBack:
  59         return VK_ESCAPE;
  60     case kKeyCodeSpace:
  61         return VK_SPACE;
  62     case kKeyCodeHome:
  63         return VK_HOME;
  64     case kKeyCodeDpadLeft:
  65         return VK_LEFT;
  66     case kKeyCodeDpadUp:
  67         return VK_UP;
  68     case kKeyCodeDpadRight:
  69         return VK_RIGHT;
  70     case kKeyCodeDpadDown:
  71         return VK_DOWN;
  72     case kKeyCode0:
  73         return VK_0;
  74     case kKeyCode1:
  75         return VK_1;
  76     case kKeyCode2:
  77         return VK_2;
  78     case kKeyCode3:
  79         return VK_3;
  80     case kKeyCode4:
  81         return VK_4;
  82     case kKeyCode5:
  83         return VK_5;
  84     case kKeyCode6:
  85         return VK_6;
  86     case kKeyCode7:
  87         return VK_7;
  88     case kKeyCode8:
  89         return VK_8;
  90     case kKeyCode9:
  91         return VK_9;
  92     case kKeyCodeA:
  93         return VK_A;
  94     case kKeyCodeB:
  95         return VK_B;
  96     case kKeyCodeC:
  97         return VK_C;
  98     case kKeyCodeD:
  99         return VK_D;
 100     case kKeyCodeE:
 101         return VK_E;
 102     case kKeyCodeF:
 103         return VK_F;
 104     case kKeyCodeG:
 105         return VK_G;
 106     case kKeyCodeH:
 107         return VK_H;
 108     case kKeyCodeI:
 109         return VK_I;
 110     case kKeyCodeJ:
 111         return VK_J;
 112     case kKeyCodeK:
 113         return VK_K;
 114     case kKeyCodeL:
 115         return VK_L;
 116     case kKeyCodeM:
 117         return VK_M;
 118     case kKeyCodeN:
 119         return VK_N;
 120     case kKeyCodeO:
 121         return VK_O;
 122     case kKeyCodeP:
 123         return VK_P;
 124     case kKeyCodeQ:
 125         return VK_Q;
 126     case kKeyCodeR:
 127         return VK_R;
 128     case kKeyCodeS:
 129         return VK_S;
 130     case kKeyCodeT:
 131         return VK_T;
 132     case kKeyCodeU:
 133         return VK_U;
 134     case kKeyCodeV:
 135         return VK_V;
 136     case kKeyCodeW:
 137         return VK_W;
 138     case kKeyCodeX:
 139         return VK_X;
 140     case kKeyCodeY:
 141         return VK_Y;
 142     case kKeyCodeZ:
 143         return VK_Z;
 144     // colon
 145     case kKeyCodeSemicolon:
 146         return VK_OEM_1;
 147     case kKeyCodeComma:
 148         return VK_OEM_COMMA;
 149     case kKeyCodeMinus:
 150         return VK_OEM_MINUS;
 151     case kKeyCodeEquals:
 152         return VK_OEM_PLUS;
 153     case kKeyCodePeriod:
 154         return VK_OEM_PERIOD;
 155     case kKeyCodeSlash:
 156         return VK_OEM_2;
 157     // maybe not the right choice
 158     case kKeyCodeLeftBracket:
 159         return VK_OEM_4;
 160     case kKeyCodeBackslash:
 161         return VK_OEM_5;
 162     case kKeyCodeRightBracket:
 163         return VK_OEM_6;
 164     default:
 165         return 0;
 166     }
 167 }
 168
 169 static String keyIdentifierForAndroidKeyCode(int keyCode)
 170 {
 171     // Does not return all of the same key identifiers, and
 172     // does not handle all the keys.
 173     switch (keyCode) {
 174     case kKeyCodeClear:
 175         return "Clear";
 176     case kKeyCodeNewline:
 177     case kKeyCodeDpadCenter:
 178         return "Enter";
 179     case kKeyCodeHome:
 180         return "Home";
 181     case kKeyCodeDpadDown:
 182         return "Down";
 183     case kKeyCodeDpadLeft:
 184         return "Left";
 185     case kKeyCodeDpadRight:
 186         return "Right";
 187     case kKeyCodeDpadUp:
 188         return "Up";
 189     // Standard says that DEL becomes U+00007F.
 190     case kKeyCodeDel:
 191         return "U+00007F";
 192     default:
 193         char upper[16];
 194         sprintf(upper, "U+%06X", windowsKeyCodeForKeyEvent(keyCode));
 195         return String(upper);
 196     }
 197 }
 198
 199 static inline String singleCharacterString(UChar32 c)
 200 {
 201     if (!c)
 202         return String();
 203     if (c > 0xffff) {
 204         UChar lead = U16_LEAD(c);
 205         UChar trail = U16_TRAIL(c);
 206         UChar utf16[2] = {lead, trail};
 207         return String(utf16, 2);
 208     }
 209     UChar n = (UChar)c;
 210     return String(&n, 1);
 211 }
 212
 213 PlatformKeyboardEvent::PlatformKeyboardEvent(int keyCode, UChar32 unichar,
 214         int repeatCount, bool down, bool cap, bool alt, bool sym)
 215     : m_type(down ? KeyDown : KeyUp)
 216     , m_text(singleCharacterString(unichar))
 217     , m_unmodifiedText(singleCharacterString(unichar))
 218     , m_keyIdentifier(keyIdentifierForAndroidKeyCode(keyCode))
 219     , m_autoRepeat(repeatCount > 0)
 220     , m_windowsVirtualKeyCode(windowsKeyCodeForKeyEvent(keyCode))
 221     , m_nativeVirtualKeyCode(keyCode)
 222     , m_isKeypad(false)
 223     , m_shiftKey(cap ? ShiftKey : 0)
 224     , m_ctrlKey(sym ? CtrlKey : 0)
 225     , m_altKey(alt ? AltKey : 0)
 226     , m_metaKey(0)
 227     // added for android
 228     , m_repeatCount(repeatCount)
 229     , m_unichar(unichar)
 230 {
 231     // Copied from the mac port
 232     if (m_windowsVirtualKeyCode == '\r') {
 233         m_text = "\r";
 234         m_unmodifiedText = "\r";
 235     }
 236
 237     if (m_text == "\x7F")
 238         m_text = "\x8";
 239     if (m_unmodifiedText == "\x7F")
 240         m_unmodifiedText = "\x8";
 241
 242     if (m_windowsVirtualKeyCode == 9) {
 243         m_text = "\x9";
 244         m_unmodifiedText = "\x9";
 245     }
 246 }
 247
 248 bool PlatformKeyboardEvent::currentCapsLockState()
 249 {
 250     notImplemented();
 251     return false;
 252 }
 253
 254 void PlatformKeyboardEvent::disambiguateKeyDownEvent(Type type, bool backwardCompatibilityMode)
 255 {
 256     // Copied with modification from the mac port.
 257     ASSERT(m_type == KeyDown);
 258     ASSERT(type == RawKeyDown || type == Char);
 259     m_type = type;
 260     if (backwardCompatibilityMode)
 261         return;
 262
 263     if (type == RawKeyDown) {
 264         m_text = String();
 265         m_unmodifiedText = String();
 266     } else {
 267         m_keyIdentifier = String();
 268         m_windowsVirtualKeyCode = 0;
 269     }
 270 }
 271
 272 } // namespace WebCore