third_party/WebKit/Source/web/WebInputEvent.cpp

   1 /*
   2  * Copyright (C) 2009 Google Inc. All rights reserved.
   3  *
   4  * Redistribution and use in source and binary forms, with or without
   5  * modification, are permitted provided that the following conditions are
   6  * met:
   7  *
   8  *     * Redistributions of source code must retain the above copyright
   9  * notice, this list of conditions and the following disclaimer.
  10  *     * Redistributions in binary form must reproduce the above
  11  * copyright notice, this list of conditions and the following disclaimer
  12  * in the documentation and/or other materials provided with the
  13  * distribution.
  14  *     * Neither the name of Google Inc. nor the names of its
  15  * contributors may be used to endorse or promote products derived from
  16  * this software without specific prior written permission.
  17  *
  18  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
  19  * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
  20  * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
  21  * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
  22  * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
  23  * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
  24  * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
  25  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
  26  * THEORY 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 "public/web/WebInputEvent.h"
  33
  34 #include "platform/KeyboardCodes.h"
  35 #include "wtf/Assertions.h"
  36 #include "wtf/StringExtras.h"
  37 #include <ctype.h>
  38
  39 namespace blink {
  40
  41 struct SameSizeAsWebInputEvent {
  42     int inputData[5];
  43 };
  44
  45 struct SameSizeAsWebKeyboardEvent : public SameSizeAsWebInputEvent {
  46     int keyboardData[14];
  47 };
  48
  49 struct SameSizeAsWebMouseEvent : public SameSizeAsWebInputEvent {
  50     int mouseData[15];
  51 };
  52
  53 struct SameSizeAsWebMouseWheelEvent : public SameSizeAsWebMouseEvent {
  54     int mousewheelData[12];
  55 };
  56
  57 struct SameSizeAsWebGestureEvent : public SameSizeAsWebInputEvent {
  58     int gestureData[11];
  59 };
  60
  61 struct SameSizeAsWebTouchEvent : public SameSizeAsWebInputEvent {
  62     WebTouchPoint touchPoints[WebTouchEvent::touchesLengthCap];
  63     int touchData[3];
  64 };
  65
  66 static_assert(sizeof(WebInputEvent) == sizeof(SameSizeAsWebInputEvent), "WebInputEvent should not have gaps");
  67 static_assert(sizeof(WebKeyboardEvent) == sizeof(SameSizeAsWebKeyboardEvent), "WebKeyboardEvent should not have gaps");
  68 static_assert(sizeof(WebMouseEvent) == sizeof(SameSizeAsWebMouseEvent), "WebMouseEvent should not have gaps");
  69 static_assert(sizeof(WebMouseWheelEvent) == sizeof(SameSizeAsWebMouseWheelEvent), "WebMouseWheelEvent should not have gaps");
  70 static_assert(sizeof(WebGestureEvent) == sizeof(SameSizeAsWebGestureEvent), "WebGestureEvent should not have gaps");
  71 static_assert(sizeof(WebTouchEvent) == sizeof(SameSizeAsWebTouchEvent), "WebTouchEvent should not have gaps");
  72
  73 static const char* staticKeyIdentifiers(unsigned short keyCode)
  74 {
  75     switch (keyCode) {
  76     case VKEY_MENU:
  77         return "Alt";
  78     case VKEY_CONTROL:
  79         return "Control";
  80     case VKEY_SHIFT:
  81         return "Shift";
  82     case VKEY_CAPITAL:
  83         return "CapsLock";
  84     case VKEY_LWIN:
  85     case VKEY_RWIN:
  86         return "Win";
  87     case VKEY_CLEAR:
  88         return "Clear";
  89     case VKEY_DOWN:
  90         return "Down";
  91     case VKEY_END:
  92         return "End";
  93     case 0x0A: // Carriage return
  94     case VKEY_RETURN:
  95         return "Enter";
  96     case VKEY_EXECUTE:
  97         return "Execute";
  98     case VKEY_F1:
  99         return "F1";
 100     case VKEY_F2:
 101         return "F2";
 102     case VKEY_F3:
 103         return "F3";
 104     case VKEY_F4:
 105         return "F4";
 106     case VKEY_F5:
 107         return "F5";
 108     case VKEY_F6:
 109         return "F6";
 110     case VKEY_F7:
 111         return "F7";
 112     case VKEY_F8:
 113         return "F8";
 114     case VKEY_F9:
 115         return "F9";
 116     case VKEY_F10:
 117         return "F10";
 118     case VKEY_F11:
 119         return "F11";
 120     case VKEY_F12:
 121         return "F12";
 122     case VKEY_F13:
 123         return "F13";
 124     case VKEY_F14:
 125         return "F14";
 126     case VKEY_F15:
 127         return "F15";
 128     case VKEY_F16:
 129         return "F16";
 130     case VKEY_F17:
 131         return "F17";
 132     case VKEY_F18:
 133         return "F18";
 134     case VKEY_F19:
 135         return "F19";
 136     case VKEY_F20:
 137         return "F20";
 138     case VKEY_F21:
 139         return "F21";
 140     case VKEY_F22:
 141         return "F22";
 142     case VKEY_F23:
 143         return "F23";
 144     case VKEY_F24:
 145         return "F24";
 146     case VKEY_HELP:
 147         return "Help";
 148     case VKEY_HOME:
 149         return "Home";
 150     case VKEY_INSERT:
 151         return "Insert";
 152     case VKEY_LEFT:
 153         return "Left";
 154     case VKEY_NEXT:
 155         return "PageDown";
 156     case VKEY_PRIOR:
 157         return "PageUp";
 158     case VKEY_PAUSE:
 159         return "Pause";
 160     case VKEY_SNAPSHOT:
 161         return "PrintScreen";
 162     case VKEY_RIGHT:
 163         return "Right";
 164     case VKEY_SCROLL:
 165         return "Scroll";
 166     case VKEY_SELECT:
 167         return "Select";
 168     case VKEY_UP:
 169         return "Up";
 170     case VKEY_DELETE:
 171         return "U+007F"; // Standard says that DEL becomes U+007F.
 172     case VKEY_MEDIA_NEXT_TRACK:
 173         return "MediaNextTrack";
 174     case VKEY_MEDIA_PREV_TRACK:
 175         return "MediaPreviousTrack";
 176     case VKEY_MEDIA_STOP:
 177         return "MediaStop";
 178     case VKEY_MEDIA_PLAY_PAUSE:
 179         return "MediaPlayPause";
 180     case VKEY_VOLUME_MUTE:
 181         return "VolumeMute";
 182     case VKEY_VOLUME_DOWN:
 183         return "VolumeDown";
 184     case VKEY_VOLUME_UP:
 185         return "VolumeUp";
 186     default:
 187         return 0;
 188     }
 189 }
 190
 191 void WebKeyboardEvent::setKeyIdentifierFromWindowsKeyCode()
 192 {
 193     const char* id = staticKeyIdentifiers(windowsKeyCode);
 194     if (id) {
 195         strncpy(keyIdentifier, id, sizeof(keyIdentifier) - 1);
 196         keyIdentifier[sizeof(keyIdentifier) - 1] = '\0';
 197     } else
 198         snprintf(keyIdentifier, sizeof(keyIdentifier), "U+%04X", toupper(windowsKeyCode));
 199 }
 200
 201 } // namespace blink