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-/*
- * Copyright (c) 2008, 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.
- */
-
-#ifndef FramelessScrollView_h
-#define FramelessScrollView_h
-
-#include "ScrollView.h"
-
-namespace WebCore {
-
- class FramelessScrollViewClient;
- class PlatformKeyboardEvent;
- class PlatformMouseEvent;
- class PlatformWheelEvent;
-
- // A FramelessScrollView is a ScrollView that can be used to render custom
- // content, which does not have an associated Frame.
- //
- // NOTE: It may be better to just develop a custom subclass of Widget that
- // can have scroll bars for this instead of trying to reuse ScrollView.
- //
- class FramelessScrollView : public ScrollView {
- public:
- FramelessScrollView() : m_client(0) {}
- ~FramelessScrollView();
-
- FramelessScrollViewClient* client() const { return m_client; }
- void setClient(FramelessScrollViewClient* client) { m_client = client; }
-
- // Event handlers that subclasses must implement.
- virtual bool handleMouseDownEvent(const PlatformMouseEvent&) = 0;
- virtual bool handleMouseMoveEvent(const PlatformMouseEvent&) = 0;
- virtual bool handleMouseReleaseEvent(const PlatformMouseEvent&) = 0;
- virtual bool handleWheelEvent(const PlatformWheelEvent&) = 0;
- virtual bool handleKeyEvent(const PlatformKeyboardEvent&) = 0;
-
- // ScrollbarClient public methods:
- virtual void invalidateScrollbarRect(Scrollbar*, const IntRect&);
- virtual bool isActive() const;
-
- // Widget public methods:
- virtual void invalidateRect(const IntRect&);
-
- // ScrollView public methods:
- virtual HostWindow* hostWindow() const;
- virtual IntRect windowClipRect(bool clipToContents = true) const;
-
- protected:
- // ScrollView protected methods:
- virtual void paintContents(GraphicsContext*, const IntRect& damageRect);
- virtual void contentsResized();
- virtual void visibleContentsResized();
-
- private:
- FramelessScrollViewClient* m_client;
- };
-
-} // namespace WebCore
-
-#endif