third_party/WebKit/Source/web/WebInputEvent.cpp

/*
 * Copyright (C) 2009 Google Inc. All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions are
 * met:
 *
 *     * Redistributions of source code must retain the above copyright
 * notice, this list of conditions and the following disclaimer.
 *     * Redistributions in binary form must reproduce the above
 * copyright notice, this list of conditions and the following disclaimer
 * in the documentation and/or other materials provided with the
 * distribution.
 *     * Neither the name of Google Inc. nor the names of its
 * contributors may be used to endorse or promote products derived from
 * this software without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 */

#include "public/platform/WebInputEvent.h"

#include "platform/KeyboardCodes.h"
#include "public/platform/WebGestureEvent.h"
#include "wtf/ASCIICType.h"
#include "wtf/Assertions.h"
#include "wtf/StringExtras.h"
#include <ctype.h>

namespace blink {

struct SameSizeAsWebInputEvent {
  int inputData[5];
};

struct SameSizeAsWebKeyboardEvent : public SameSizeAsWebInputEvent {
  int keyboardData[9];
};

struct SameSizeAsWebMouseEvent : public SameSizeAsWebInputEvent {
  int mouseData[15];
};

struct SameSizeAsWebMouseWheelEvent : public SameSizeAsWebMouseEvent {
  int mousewheelData[12];
};

struct SameSizeAsWebGestureEvent : public SameSizeAsWebInputEvent {
  int gestureData[14];
};

struct SameSizeAsWebTouchEvent : public SameSizeAsWebInputEvent {
  WebTouchPoint touchPoints[WebTouchEvent::kTouchesLengthCap];
  int touchData[4];
};

static_assert(sizeof(WebInputEvent) == sizeof(SameSizeAsWebInputEvent),
              "WebInputEvent should not have gaps");
static_assert(sizeof(WebKeyboardEvent) == sizeof(SameSizeAsWebKeyboardEvent),
              "WebKeyboardEvent should not have gaps");
static_assert(sizeof(WebMouseEvent) == sizeof(SameSizeAsWebMouseEvent),
              "WebMouseEvent should not have gaps");
static_assert(sizeof(WebMouseWheelEvent) ==
                  sizeof(SameSizeAsWebMouseWheelEvent),
              "WebMouseWheelEvent should not have gaps");
static_assert(sizeof(WebGestureEvent) == sizeof(SameSizeAsWebGestureEvent),
              "WebGestureEvent should not have gaps");
static_assert(sizeof(WebTouchEvent) == sizeof(SameSizeAsWebTouchEvent),
              "WebTouchEvent should not have gaps");

#define CASE_TYPE(t)     \
  case WebInputEvent::t: \
    return #t
// static
const char* WebInputEvent::GetName(WebInputEvent::Type type) {
  switch (type) {
    CASE_TYPE(Undefined);
    CASE_TYPE(MouseDown);
    CASE_TYPE(MouseUp);
    CASE_TYPE(MouseMove);
    CASE_TYPE(MouseEnter);
    CASE_TYPE(MouseLeave);
    CASE_TYPE(ContextMenu);
    CASE_TYPE(MouseWheel);
    CASE_TYPE(RawKeyDown);
    CASE_TYPE(KeyDown);
    CASE_TYPE(KeyUp);
    CASE_TYPE(Char);
    CASE_TYPE(GestureScrollBegin);
    CASE_TYPE(GestureScrollEnd);
    CASE_TYPE(GestureScrollUpdate);
    CASE_TYPE(GestureFlingStart);
    CASE_TYPE(GestureFlingCancel);
    CASE_TYPE(GestureShowPress);
    CASE_TYPE(GestureTap);
    CASE_TYPE(GestureTapUnconfirmed);
    CASE_TYPE(GestureTapDown);
    CASE_TYPE(GestureTapCancel);
    CASE_TYPE(GestureDoubleTap);
    CASE_TYPE(GestureTwoFingerTap);
    CASE_TYPE(GestureLongPress);
    CASE_TYPE(GestureLongTap);
    CASE_TYPE(GesturePinchBegin);
    CASE_TYPE(GesturePinchEnd);
    CASE_TYPE(GesturePinchUpdate);
    CASE_TYPE(TouchStart);
    CASE_TYPE(TouchMove);
    CASE_TYPE(TouchEnd);
    CASE_TYPE(TouchCancel);
    CASE_TYPE(TouchScrollStarted);
    default:
      NOTREACHED();
      return "";
  }
}
#undef CASE_TYPE

}  // namespace blink