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94 lines
2.9 KiB
C++
94 lines
2.9 KiB
C++
/*
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* Copyright (C) 2012 Google Inc. All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY APPLE INC. AND ITS CONTRIBUTORS ``AS IS'' AND ANY
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* EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
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* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
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* DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR ITS CONTRIBUTORS BE LIABLE FOR ANY
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* DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
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* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
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* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
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* ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
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* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#ifndef WebScrollbar_h
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#define WebScrollbar_h
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#include "WebPoint.h"
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#include "WebRect.h"
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#include "WebSize.h"
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#include "WebVector.h"
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#if INSIDE_BLINK
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#include "wtf/PassOwnPtr.h"
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#endif
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namespace blink {
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// A const accessor interface for a WebKit scrollbar
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class BLINK_PLATFORM_EXPORT WebScrollbar {
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public:
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enum Orientation {
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Horizontal,
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Vertical
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};
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enum ScrollDirection {
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ScrollBackward,
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ScrollForward
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};
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enum ScrollGranularity {
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ScrollByLine,
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ScrollByPage,
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ScrollByDocument,
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ScrollByPixel
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};
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enum ScrollbarPart {
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NoPart,
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BackTrackPart,
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ThumbPart,
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ForwardTrackPart,
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};
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enum ScrollbarOverlayStyle {
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ScrollbarOverlayStyleDefault,
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ScrollbarOverlayStyleLight
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};
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virtual ~WebScrollbar() { }
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// Return true if this is an overlay scrollbar.
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virtual bool isOverlay() const = 0;
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// Gets the current value (i.e. position inside the region).
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virtual int value() const = 0;
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virtual WebPoint location() const = 0;
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virtual WebSize size() const = 0;
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virtual bool enabled() const = 0;
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virtual int maximum() const = 0;
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virtual int totalSize() const = 0;
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virtual bool isScrollableAreaActive() const = 0;
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virtual ScrollbarPart pressedPart() const = 0;
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virtual ScrollbarPart hoveredPart() const = 0;
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virtual ScrollbarOverlayStyle scrollbarOverlayStyle() const = 0;
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virtual Orientation orientation() const = 0;
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virtual bool isLeftSideVerticalScrollbar() const = 0;
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};
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} // namespace blink
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#endif
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