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      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 "WebInputEvent.h"
     33 
     34 #include <ctype.h>
     35 #include "core/platform/chromium/KeyboardCodes.h"
     36 #include "wtf/Assertions.h"
     37 #include "wtf/StringExtras.h"
     38 
     39 using namespace WebCore;
     40 
     41 namespace WebKit {
     42 
     43 struct SameSizeAsWebInputEvent {
     44     int inputData[5];
     45 };
     46 
     47 struct SameSizeAsWebKeyboardEvent : public SameSizeAsWebInputEvent {
     48     int keyboardData[12];
     49 };
     50 
     51 struct SameSizeAsWebMouseEvent : public SameSizeAsWebInputEvent {
     52     int mouseData[10];
     53 };
     54 
     55 struct SameSizeAsWebMouseWheelEvent : public SameSizeAsWebMouseEvent {
     56     int mousewheelData[10];
     57 };
     58 
     59 struct SameSizeAsWebGestureEvent : public SameSizeAsWebInputEvent {
     60     int gestureData[9];
     61 };
     62 
     63 struct SameSizeAsWebTouchEvent : public SameSizeAsWebInputEvent {
     64     WebTouchPoint touchPoints[3 * WebTouchEvent::touchesLengthCap];
     65     int touchData[3];
     66 };
     67 
     68 COMPILE_ASSERT(sizeof(WebInputEvent) == sizeof(SameSizeAsWebInputEvent), WebInputEvent_has_gaps);
     69 COMPILE_ASSERT(sizeof(WebKeyboardEvent) == sizeof(SameSizeAsWebKeyboardEvent), WebKeyboardEvent_has_gaps);
     70 COMPILE_ASSERT(sizeof(WebMouseEvent) == sizeof(SameSizeAsWebMouseEvent), WebMouseEvent_has_gaps);
     71 COMPILE_ASSERT(sizeof(WebMouseWheelEvent) == sizeof(SameSizeAsWebMouseWheelEvent), WebMouseWheelEvent_has_gaps);
     72 COMPILE_ASSERT(sizeof(WebGestureEvent) == sizeof(SameSizeAsWebGestureEvent), WebGestureEvent_has_gaps);
     73 COMPILE_ASSERT(sizeof(WebTouchEvent) == sizeof(SameSizeAsWebTouchEvent), WebTouchEvent_has_gaps);
     74 
     75 static const char* staticKeyIdentifiers(unsigned short keyCode)
     76 {
     77     switch (keyCode) {
     78     case VKEY_MENU:
     79         return "Alt";
     80     case VKEY_CONTROL:
     81         return "Control";
     82     case VKEY_SHIFT:
     83         return "Shift";
     84     case VKEY_CAPITAL:
     85         return "CapsLock";
     86     case VKEY_LWIN:
     87     case VKEY_RWIN:
     88         return "Win";
     89     case VKEY_CLEAR:
     90         return "Clear";
     91     case VKEY_DOWN:
     92         return "Down";
     93     case VKEY_END:
     94         return "End";
     95     case VKEY_RETURN:
     96         return "Enter";
     97     case VKEY_EXECUTE:
     98         return "Execute";
     99     case VKEY_F1:
    100         return "F1";
    101     case VKEY_F2:
    102         return "F2";
    103     case VKEY_F3:
    104         return "F3";
    105     case VKEY_F4:
    106         return "F4";
    107     case VKEY_F5:
    108         return "F5";
    109     case VKEY_F6:
    110         return "F6";
    111     case VKEY_F7:
    112         return "F7";
    113     case VKEY_F8:
    114         return "F8";
    115     case VKEY_F9:
    116         return "F9";
    117     case VKEY_F10:
    118         return "F10";
    119     case VKEY_F11:
    120         return "F11";
    121     case VKEY_F12:
    122         return "F12";
    123     case VKEY_F13:
    124         return "F13";
    125     case VKEY_F14:
    126         return "F14";
    127     case VKEY_F15:
    128         return "F15";
    129     case VKEY_F16:
    130         return "F16";
    131     case VKEY_F17:
    132         return "F17";
    133     case VKEY_F18:
    134         return "F18";
    135     case VKEY_F19:
    136         return "F19";
    137     case VKEY_F20:
    138         return "F20";
    139     case VKEY_F21:
    140         return "F21";
    141     case VKEY_F22:
    142         return "F22";
    143     case VKEY_F23:
    144         return "F23";
    145     case VKEY_F24:
    146         return "F24";
    147     case VKEY_HELP:
    148         return "Help";
    149     case VKEY_HOME:
    150         return "Home";
    151     case VKEY_INSERT:
    152         return "Insert";
    153     case VKEY_LEFT:
    154         return "Left";
    155     case VKEY_NEXT:
    156         return "PageDown";
    157     case VKEY_PRIOR:
    158         return "PageUp";
    159     case VKEY_PAUSE:
    160         return "Pause";
    161     case VKEY_SNAPSHOT:
    162         return "PrintScreen";
    163     case VKEY_RIGHT:
    164         return "Right";
    165     case VKEY_SCROLL:
    166         return "Scroll";
    167     case VKEY_SELECT:
    168         return "Select";
    169     case VKEY_UP:
    170         return "Up";
    171     case VKEY_DELETE:
    172         return "U+007F"; // Standard says that DEL becomes U+007F.
    173     case VKEY_MEDIA_NEXT_TRACK:
    174         return "MediaNextTrack";
    175     case VKEY_MEDIA_PREV_TRACK:
    176         return "MediaPreviousTrack";
    177     case VKEY_MEDIA_STOP:
    178         return "MediaStop";
    179     case VKEY_MEDIA_PLAY_PAUSE:
    180         return "MediaPlayPause";
    181     case VKEY_VOLUME_MUTE:
    182         return "VolumeMute";
    183     case VKEY_VOLUME_DOWN:
    184         return "VolumeDown";
    185     case VKEY_VOLUME_UP:
    186         return "VolumeUp";
    187     default:
    188         return 0;
    189     }
    190 }
    191 
    192 void WebKeyboardEvent::setKeyIdentifierFromWindowsKeyCode()
    193 {
    194     const char* id = staticKeyIdentifiers(windowsKeyCode);
    195     if (id) {
    196         strncpy(keyIdentifier, id, sizeof(keyIdentifier) - 1);
    197         keyIdentifier[sizeof(keyIdentifier) - 1] = '\0';
    198     } else
    199         snprintf(keyIdentifier, sizeof(keyIdentifier), "U+%04X", toupper(windowsKeyCode));
    200 }
    201 
    202 // static
    203 int WebKeyboardEvent::windowsKeyCodeWithoutLocation(int keycode)
    204 {
    205     switch (keycode) {
    206     case VK_LCONTROL:
    207     case VK_RCONTROL:
    208         return VK_CONTROL;
    209     case VK_LSHIFT:
    210     case VK_RSHIFT:
    211         return VK_SHIFT;
    212     case VK_LMENU:
    213     case VK_RMENU:
    214         return VK_MENU;
    215     default:
    216         return keycode;
    217     }
    218 }
    219 
    220 // static
    221 int WebKeyboardEvent::locationModifiersFromWindowsKeyCode(int keycode)
    222 {
    223     switch (keycode) {
    224     case VK_LCONTROL:
    225     case VK_LSHIFT:
    226     case VK_LMENU:
    227     case VK_LWIN:
    228         return IsLeft;
    229     case VK_RCONTROL:
    230     case VK_RSHIFT:
    231     case VK_RMENU:
    232     case VK_RWIN:
    233         return IsRight;
    234     default:
    235         return 0;
    236     }
    237 }
    238 
    239 } // namespace WebKit
    240