| /* |
| * Copyright (C) 2008 Apple 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: |
| * 1. Redistributions of source code must retain the above copyright |
| * notice, this list of conditions and the following disclaimer. |
| * 2. 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. |
| * |
| * THIS SOFTWARE IS PROVIDED BY APPLE INC. ``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 APPLE INC. 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 ScrollbarClient_h |
| #define ScrollbarClient_h |
| |
| #include "IntRect.h" |
| #include "Scrollbar.h" |
| #include <wtf/Vector.h> |
| |
| namespace WebCore { |
| |
| class ScrollbarClient { |
| public: |
| virtual ~ScrollbarClient() {} |
| virtual void valueChanged(Scrollbar*) = 0; |
| |
| virtual void invalidateScrollbarRect(Scrollbar*, const IntRect&) = 0; |
| |
| virtual bool isActive() const = 0; |
| |
| virtual bool scrollbarCornerPresent() const = 0; |
| |
| virtual void getTickmarks(Vector<IntRect>&) const { } |
| |
| // Convert points and rects between the scrollbar and its containing view. |
| // The client needs to implement these in order to be aware of layout effects |
| // like CSS transforms. |
| virtual IntRect convertFromScrollbarToContainingView(const Scrollbar* scrollbar, const IntRect& scrollbarRect) const |
| { |
| return scrollbar->Widget::convertToContainingView(scrollbarRect); |
| } |
| |
| virtual IntRect convertFromContainingViewToScrollbar(const Scrollbar* scrollbar, const IntRect& parentRect) const |
| { |
| return scrollbar->Widget::convertFromContainingView(parentRect); |
| } |
| |
| virtual IntPoint convertFromScrollbarToContainingView(const Scrollbar* scrollbar, const IntPoint& scrollbarPoint) const |
| { |
| return scrollbar->Widget::convertToContainingView(scrollbarPoint); |
| } |
| |
| virtual IntPoint convertFromContainingViewToScrollbar(const Scrollbar* scrollbar, const IntPoint& parentPoint) const |
| { |
| return scrollbar->Widget::convertFromContainingView(parentPoint); |
| } |
| }; |
| |
| } |
| #endif |