src/third_party/WebKit/Source/web/WebInputEventFactoryAndroid.cpp

   1 /*
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   3  *
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   6  * met:
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   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.
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  29  */
  30
  31 #include "config.h"
  32 #include "WebInputEventFactory.h"
  33
  34 #include "WebInputEvent.h"
  35 #include "platform/KeyCodeConversion.h"
  36 #include "platform/KeyboardCodes.h"
  37 #include "wtf/Assertions.h"
  38
  39 namespace blink {
  40
  41 WebKeyboardEvent WebInputEventFactory::keyboardEvent(WebInputEvent::Type type,
  42                                                      int modifiers,
  43                                                      double timeStampSeconds,
  44                                                      int keycode,
  45                                                      WebUChar unicodeCharacter,
  46                                                      bool isSystemKey)
  47 {
  48     WebKeyboardEvent result;
  49
  50     result.type = type;
  51     result.modifiers = modifiers;
  52     result.timeStampSeconds = timeStampSeconds;
  53     int windowsKeyCode = WebCore::windowsKeyCodeForKeyEvent(keycode);
  54     result.windowsKeyCode = WebKeyboardEvent::windowsKeyCodeWithoutLocation(windowsKeyCode);
  55     result.modifiers |= WebKeyboardEvent::locationModifiersFromWindowsKeyCode(windowsKeyCode);
  56     result.nativeKeyCode = keycode;
  57     result.unmodifiedText[0] = unicodeCharacter;
  58     if (result.windowsKeyCode == WebCore::VKEY_RETURN) {
  59         // This is the same behavior as GTK:
  60         // We need to treat the enter key as a key press of character \r. This
  61         // is apparently just how webkit handles it and what it expects.
  62         result.unmodifiedText[0] = '\r';
  63     }
  64     result.text[0] = result.unmodifiedText[0];
  65     result.setKeyIdentifierFromWindowsKeyCode();
  66     result.isSystemKey = isSystemKey;
  67
  68     return result;
  69 }
  70
  71 WebMouseEvent WebInputEventFactory::mouseEvent(MouseEventType type,
  72                                                WebMouseEvent::Button button,
  73                                                double timeStampSeconds,
  74                                                int windowX,
  75                                                int windowY,
  76                                                int modifiers,
  77                                                int clickCount)
  78 {
  79     WebMouseEvent result;
  80
  81     result.x = windowX;
  82     result.y = windowY;
  83     result.windowX = windowX;
  84     result.windowY = windowY;
  85     result.timeStampSeconds = timeStampSeconds;
  86     result.clickCount = clickCount;
  87     result.modifiers = modifiers;
  88
  89     switch (type) {
  90     case MouseEventTypeDown:
  91         result.type = WebInputEvent::MouseDown;
  92         result.button = button;
  93         break;
  94     case MouseEventTypeUp:
  95         result.type = WebInputEvent::MouseUp;
  96         result.button = button;
  97         break;
  98     case MouseEventTypeMove:
  99         result.type = WebInputEvent::MouseMove;
 100         result.button = WebMouseEvent::ButtonNone;
 101         break;
 102     };
 103
 104     return result;
 105 }
 106
 107 bool WebInputEventFactory::isSystemKeyEvent(const WebKeyboardEvent& event)
 108 {
 109     // On Windows all keys with Alt modifier will be marked as system key.
 110     // We keep the same behavior on Linux and everywhere non-Mac.
 111     return event.modifiers & WebInputEvent::AltKey;
 112 }
 113
 114 // WebMouseWheelEvent ------------------------------------------------------------
 115
 116 WebMouseWheelEvent WebInputEventFactory::mouseWheelEvent(MouseWheelDirectionType direction,
 117                                                          double timeStampSeconds,
 118                                                          int windowX,
 119                                                          int windowY)
 120 {
 121     WebMouseWheelEvent result;
 122
 123     result.type = WebInputEvent::MouseWheel;
 124     result.x = windowX;
 125     result.y = windowY;
 126     result.windowX = windowX;
 127     result.windowY = windowY;
 128     result.timeStampSeconds = timeStampSeconds;
 129     result.button = WebMouseEvent::ButtonNone;
 130
 131     // The below choices are matched from GTK.
 132     static const float scrollbarPixelsPerTick = 160.0f / 3.0f;
 133
 134     switch (direction) {
 135     case MouseWheelDirectionTypeUp:
 136         result.deltaY = scrollbarPixelsPerTick;
 137         result.wheelTicksY = 1;
 138         break;
 139     case MouseWheelDirectionTypeDown:
 140         result.deltaY = -scrollbarPixelsPerTick;
 141         result.wheelTicksY = -1;
 142         break;
 143     case MouseWheelDirectionTypeLeft:
 144         result.deltaX = scrollbarPixelsPerTick;
 145         result.wheelTicksX = 1;
 146         break;
 147     case MouseWheelDirectionTypeRight:
 148         result.deltaX = -scrollbarPixelsPerTick;
 149         result.wheelTicksX = -1;
 150         break;
 151     }
 152
 153     return result;
 154 }
 155
 156 // WebGestureEvent ------------------------------------------------------------
 157
 158 // FIXME: remove this obsolete version
 159 WebGestureEvent WebInputEventFactory::gestureEvent(WebInputEvent::Type type,
 160                                                    double timeStampSeconds,
 161                                                    int x,
 162                                                    int y,
 163                                                    float,
 164                                                    float,
 165                                                    int modifiers) {
 166     return gestureEvent(type, timeStampSeconds, x, y, modifiers);
 167 }
 168
 169 WebGestureEvent WebInputEventFactory::gestureEvent(WebInputEvent::Type type,
 170                                                    double timeStampSeconds,
 171                                                    int x,
 172                                                    int y,
 173                                                    int modifiers)
 174 {
 175     WebGestureEvent result;
 176
 177     result.type = type;
 178     result.x = x;
 179     result.y = y;
 180     result.timeStampSeconds = timeStampSeconds;
 181     result.modifiers = modifiers;
 182
 183     return result;
 184 }
 185
 186 } // namespace blink