third_party/WebKit/Source/platform/scroll/ScrollbarThemeOverlayMock.h

/*
 * Copyright (C) 2013 Google Inc. All rights reserved.
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 * 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
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 */

#ifndef ScrollbarThemeOverlayMock_h
#define ScrollbarThemeOverlayMock_h

#include "platform/scroll/ScrollbarThemeOverlay.h"

namespace blink {

class PLATFORM_EXPORT ScrollbarThemeOverlayMock : public ScrollbarThemeOverlay {
 public:
  ScrollbarThemeOverlayMock()
      : ScrollbarThemeOverlay(3, 4, kDisallowHitTest, Color(128, 128, 128)),
        delay_in_seconds_(0.0) {}

  double OverlayScrollbarFadeOutDelaySeconds() const override {
    return delay_in_seconds_;
  }
  double OverlayScrollbarFadeOutDurationSeconds() const override { return 0.0; }

  void SetOverlayScrollbarFadeOutDelay(double delay_in_seconds) {
    delay_in_seconds_ = delay_in_seconds;
  }

  void PaintThumb(GraphicsContext& gc,
                  const Scrollbar& scrollbar,
                  const IntRect& rect) override {
    if (!scrollbar.Enabled())
      return;
    ScrollbarThemeOverlay::PaintThumb(gc, scrollbar, rect);
  }

  bool ShouldSnapBackToDragOrigin(const ScrollbarThemeClient& scrollbar,
                                  const WebMouseEvent& evt) override {
    return false;
  }

  int MinimumThumbLength(const ScrollbarThemeClient&) override { return 7; }

 private:
  double delay_in_seconds_;
  bool IsMockTheme() const final { return true; }
};

}  // namespace blink
#endif  // ScrollbarThemeOverlayMock_h