Index: Source/core/platform/ScrollableArea.cpp |
diff --git a/Source/core/platform/ScrollableArea.cpp b/Source/core/platform/ScrollableArea.cpp |
deleted file mode 100644 |
index 3fa7616400dab9c67f60be057ab1873b29297086..0000000000000000000000000000000000000000 |
--- a/Source/core/platform/ScrollableArea.cpp |
+++ /dev/null |
@@ -1,410 +0,0 @@ |
-/* |
- * Copyright (c) 2010, Google Inc. All rights reserved. |
- * Copyright (C) 2008, 2011 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: |
- * |
- * * 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 "config.h" |
-#include "core/platform/ScrollableArea.h" |
- |
-#include "core/platform/ScrollAnimator.h" |
-#include "core/platform/ScrollbarTheme.h" |
-#include "core/platform/graphics/GraphicsLayer.h" |
-#include "platform/geometry/FloatPoint.h" |
-#include "wtf/PassOwnPtr.h" |
- |
-#include "platform/TraceEvent.h" |
- |
-static const int kPixelsPerLineStep = 40; |
-static const float kMinFractionToStepWhenPaging = 0.875f; |
- |
-namespace WebCore { |
- |
-struct SameSizeAsScrollableArea { |
- virtual ~SameSizeAsScrollableArea(); |
- void* pointer; |
- unsigned bitfields : 16; |
- IntPoint origin; |
-}; |
- |
-COMPILE_ASSERT(sizeof(ScrollableArea) == sizeof(SameSizeAsScrollableArea), ScrollableArea_should_stay_small); |
- |
-int ScrollableArea::pixelsPerLineStep() |
-{ |
- return kPixelsPerLineStep; |
-} |
- |
-float ScrollableArea::minFractionToStepWhenPaging() |
-{ |
- return kMinFractionToStepWhenPaging; |
-} |
- |
-int ScrollableArea::maxOverlapBetweenPages() |
-{ |
- static int maxOverlapBetweenPages = ScrollbarTheme::theme()->maxOverlapBetweenPages(); |
- return maxOverlapBetweenPages; |
-} |
- |
-ScrollableArea::ScrollableArea() |
- : m_constrainsScrollingToContentEdge(true) |
- , m_inLiveResize(false) |
- , m_verticalScrollElasticity(ScrollElasticityNone) |
- , m_horizontalScrollElasticity(ScrollElasticityNone) |
- , m_scrollbarOverlayStyle(ScrollbarOverlayStyleDefault) |
- , m_scrollOriginChanged(false) |
-{ |
-} |
- |
-ScrollableArea::~ScrollableArea() |
-{ |
-} |
- |
-ScrollAnimator* ScrollableArea::scrollAnimator() const |
-{ |
- if (!m_scrollAnimator) |
- m_scrollAnimator = ScrollAnimator::create(const_cast<ScrollableArea*>(this)); |
- |
- return m_scrollAnimator.get(); |
-} |
- |
-void ScrollableArea::setScrollOrigin(const IntPoint& origin) |
-{ |
- if (m_scrollOrigin != origin) { |
- m_scrollOrigin = origin; |
- m_scrollOriginChanged = true; |
- } |
-} |
- |
-bool ScrollableArea::scroll(ScrollDirection direction, ScrollGranularity granularity, float multiplier) |
-{ |
- ScrollbarOrientation orientation; |
- |
- if (direction == ScrollUp || direction == ScrollDown) |
- orientation = VerticalScrollbar; |
- else |
- orientation = HorizontalScrollbar; |
- |
- if (!userInputScrollable(orientation)) |
- return false; |
- |
- float step = 0; |
- switch (granularity) { |
- case ScrollByLine: |
- step = lineStep(orientation); |
- break; |
- case ScrollByPage: |
- step = pageStep(orientation); |
- break; |
- case ScrollByDocument: |
- step = documentStep(orientation); |
- break; |
- case ScrollByPixel: |
- case ScrollByPrecisePixel: |
- step = pixelStep(orientation); |
- break; |
- } |
- |
- if (direction == ScrollUp || direction == ScrollLeft) |
- multiplier = -multiplier; |
- |
- return scrollAnimator()->scroll(orientation, granularity, step, multiplier); |
-} |
- |
-void ScrollableArea::scrollToOffsetWithoutAnimation(const FloatPoint& offset) |
-{ |
- scrollAnimator()->scrollToOffsetWithoutAnimation(offset); |
-} |
- |
-void ScrollableArea::scrollToOffsetWithoutAnimation(ScrollbarOrientation orientation, float offset) |
-{ |
- if (orientation == HorizontalScrollbar) |
- scrollToOffsetWithoutAnimation(FloatPoint(offset, scrollAnimator()->currentPosition().y())); |
- else |
- scrollToOffsetWithoutAnimation(FloatPoint(scrollAnimator()->currentPosition().x(), offset)); |
-} |
- |
-void ScrollableArea::notifyScrollPositionChanged(const IntPoint& position) |
-{ |
- scrollPositionChanged(position); |
- scrollAnimator()->setCurrentPosition(position); |
-} |
- |
-void ScrollableArea::scrollPositionChanged(const IntPoint& position) |
-{ |
- TRACE_EVENT0("webkit", "ScrollableArea::scrollPositionChanged"); |
- |
- IntPoint oldPosition = scrollPosition(); |
- // Tell the derived class to scroll its contents. |
- setScrollOffset(position); |
- |
- Scrollbar* verticalScrollbar = this->verticalScrollbar(); |
- |
- // Tell the scrollbars to update their thumb postions. |
- if (Scrollbar* horizontalScrollbar = this->horizontalScrollbar()) { |
- horizontalScrollbar->offsetDidChange(); |
- if (horizontalScrollbar->isOverlayScrollbar() && !hasLayerForHorizontalScrollbar()) { |
- if (!verticalScrollbar) |
- horizontalScrollbar->invalidate(); |
- else { |
- // If there is both a horizontalScrollbar and a verticalScrollbar, |
- // then we must also invalidate the corner between them. |
- IntRect boundsAndCorner = horizontalScrollbar->boundsRect(); |
- boundsAndCorner.setWidth(boundsAndCorner.width() + verticalScrollbar->width()); |
- horizontalScrollbar->invalidateRect(boundsAndCorner); |
- } |
- } |
- } |
- if (verticalScrollbar) { |
- verticalScrollbar->offsetDidChange(); |
- if (verticalScrollbar->isOverlayScrollbar() && !hasLayerForVerticalScrollbar()) |
- verticalScrollbar->invalidate(); |
- } |
- |
- if (scrollPosition() != oldPosition) |
- scrollAnimator()->notifyContentAreaScrolled(scrollPosition() - oldPosition); |
-} |
- |
-bool ScrollableArea::handleWheelEvent(const PlatformWheelEvent& wheelEvent) |
-{ |
- return scrollAnimator()->handleWheelEvent(wheelEvent); |
-} |
- |
-// NOTE: Only called from Internals for testing. |
-void ScrollableArea::setScrollOffsetFromInternals(const IntPoint& offset) |
-{ |
- setScrollOffsetFromAnimation(offset); |
-} |
- |
-void ScrollableArea::setScrollOffsetFromAnimation(const IntPoint& offset) |
-{ |
- scrollPositionChanged(offset); |
-} |
- |
-void ScrollableArea::willStartLiveResize() |
-{ |
- if (m_inLiveResize) |
- return; |
- m_inLiveResize = true; |
- if (ScrollAnimator* scrollAnimator = existingScrollAnimator()) |
- scrollAnimator->willStartLiveResize(); |
-} |
- |
-void ScrollableArea::willEndLiveResize() |
-{ |
- if (!m_inLiveResize) |
- return; |
- m_inLiveResize = false; |
- if (ScrollAnimator* scrollAnimator = existingScrollAnimator()) |
- scrollAnimator->willEndLiveResize(); |
-} |
- |
-void ScrollableArea::contentAreaWillPaint() const |
-{ |
- if (ScrollAnimator* scrollAnimator = existingScrollAnimator()) |
- scrollAnimator->contentAreaWillPaint(); |
-} |
- |
-void ScrollableArea::mouseEnteredContentArea() const |
-{ |
- if (ScrollAnimator* scrollAnimator = existingScrollAnimator()) |
- scrollAnimator->mouseEnteredContentArea(); |
-} |
- |
-void ScrollableArea::mouseExitedContentArea() const |
-{ |
- if (ScrollAnimator* scrollAnimator = existingScrollAnimator()) |
- scrollAnimator->mouseEnteredContentArea(); |
-} |
- |
-void ScrollableArea::mouseMovedInContentArea() const |
-{ |
- if (ScrollAnimator* scrollAnimator = existingScrollAnimator()) |
- scrollAnimator->mouseMovedInContentArea(); |
-} |
- |
-void ScrollableArea::mouseEnteredScrollbar(Scrollbar* scrollbar) const |
-{ |
- scrollAnimator()->mouseEnteredScrollbar(scrollbar); |
-} |
- |
-void ScrollableArea::mouseExitedScrollbar(Scrollbar* scrollbar) const |
-{ |
- scrollAnimator()->mouseExitedScrollbar(scrollbar); |
-} |
- |
-void ScrollableArea::contentAreaDidShow() const |
-{ |
- if (ScrollAnimator* scrollAnimator = existingScrollAnimator()) |
- scrollAnimator->contentAreaDidShow(); |
-} |
- |
-void ScrollableArea::contentAreaDidHide() const |
-{ |
- if (ScrollAnimator* scrollAnimator = existingScrollAnimator()) |
- scrollAnimator->contentAreaDidHide(); |
-} |
- |
-void ScrollableArea::finishCurrentScrollAnimations() const |
-{ |
- if (ScrollAnimator* scrollAnimator = existingScrollAnimator()) |
- scrollAnimator->finishCurrentScrollAnimations(); |
-} |
- |
-void ScrollableArea::didAddScrollbar(Scrollbar* scrollbar, ScrollbarOrientation orientation) |
-{ |
- if (orientation == VerticalScrollbar) |
- scrollAnimator()->didAddVerticalScrollbar(scrollbar); |
- else |
- scrollAnimator()->didAddHorizontalScrollbar(scrollbar); |
- |
- // <rdar://problem/9797253> AppKit resets the scrollbar's style when you attach a scrollbar |
- setScrollbarOverlayStyle(scrollbarOverlayStyle()); |
-} |
- |
-void ScrollableArea::willRemoveScrollbar(Scrollbar* scrollbar, ScrollbarOrientation orientation) |
-{ |
- if (orientation == VerticalScrollbar) |
- scrollAnimator()->willRemoveVerticalScrollbar(scrollbar); |
- else |
- scrollAnimator()->willRemoveHorizontalScrollbar(scrollbar); |
-} |
- |
-void ScrollableArea::contentsResized() |
-{ |
- if (ScrollAnimator* scrollAnimator = existingScrollAnimator()) |
- scrollAnimator->contentsResized(); |
-} |
- |
-bool ScrollableArea::hasOverlayScrollbars() const |
-{ |
- return (verticalScrollbar() && verticalScrollbar()->isOverlayScrollbar()) |
- || (horizontalScrollbar() && horizontalScrollbar()->isOverlayScrollbar()); |
-} |
- |
-void ScrollableArea::setScrollbarOverlayStyle(ScrollbarOverlayStyle overlayStyle) |
-{ |
- m_scrollbarOverlayStyle = overlayStyle; |
- |
- if (horizontalScrollbar()) { |
- ScrollbarTheme::theme()->updateScrollbarOverlayStyle(horizontalScrollbar()); |
- horizontalScrollbar()->invalidate(); |
- } |
- |
- if (verticalScrollbar()) { |
- ScrollbarTheme::theme()->updateScrollbarOverlayStyle(verticalScrollbar()); |
- verticalScrollbar()->invalidate(); |
- } |
-} |
- |
-void ScrollableArea::invalidateScrollbar(Scrollbar* scrollbar, const IntRect& rect) |
-{ |
- if (scrollbar == horizontalScrollbar()) { |
- if (GraphicsLayer* graphicsLayer = layerForHorizontalScrollbar()) { |
- graphicsLayer->setNeedsDisplay(); |
- graphicsLayer->setContentsNeedsDisplay(); |
- return; |
- } |
- } else if (scrollbar == verticalScrollbar()) { |
- if (GraphicsLayer* graphicsLayer = layerForVerticalScrollbar()) { |
- graphicsLayer->setNeedsDisplay(); |
- graphicsLayer->setContentsNeedsDisplay(); |
- return; |
- } |
- } |
- invalidateScrollbarRect(scrollbar, rect); |
-} |
- |
-void ScrollableArea::invalidateScrollCorner(const IntRect& rect) |
-{ |
- if (GraphicsLayer* graphicsLayer = layerForScrollCorner()) { |
- graphicsLayer->setNeedsDisplay(); |
- return; |
- } |
- invalidateScrollCornerRect(rect); |
-} |
- |
-bool ScrollableArea::hasLayerForHorizontalScrollbar() const |
-{ |
- return layerForHorizontalScrollbar(); |
-} |
- |
-bool ScrollableArea::hasLayerForVerticalScrollbar() const |
-{ |
- return layerForVerticalScrollbar(); |
-} |
- |
-bool ScrollableArea::hasLayerForScrollCorner() const |
-{ |
- return layerForScrollCorner(); |
-} |
- |
-void ScrollableArea::serviceScrollAnimations() |
-{ |
- if (ScrollAnimator* scrollAnimator = existingScrollAnimator()) |
- scrollAnimator->serviceScrollAnimations(); |
-} |
- |
-IntRect ScrollableArea::visibleContentRect(IncludeScrollbarsInRect scrollbarInclusion) const |
-{ |
- int verticalScrollbarWidth = 0; |
- int horizontalScrollbarHeight = 0; |
- |
- if (scrollbarInclusion == IncludeScrollbars) { |
- if (Scrollbar* verticalBar = verticalScrollbar()) |
- verticalScrollbarWidth = !verticalBar->isOverlayScrollbar() ? verticalBar->width() : 0; |
- if (Scrollbar* horizontalBar = horizontalScrollbar()) |
- horizontalScrollbarHeight = !horizontalBar->isOverlayScrollbar() ? horizontalBar->height() : 0; |
- } |
- |
- return IntRect(scrollPosition().x(), |
- scrollPosition().y(), |
- std::max(0, visibleWidth() + verticalScrollbarWidth), |
- std::max(0, visibleHeight() + horizontalScrollbarHeight)); |
-} |
- |
-IntPoint ScrollableArea::clampScrollPosition(const IntPoint& scrollPosition) const |
-{ |
- return scrollPosition.shrunkTo(maximumScrollPosition()).expandedTo(minimumScrollPosition()); |
-} |
- |
-int ScrollableArea::lineStep(ScrollbarOrientation) const |
-{ |
- return pixelsPerLineStep(); |
-} |
- |
-int ScrollableArea::documentStep(ScrollbarOrientation orientation) const |
-{ |
- return scrollSize(orientation); |
-} |
- |
-float ScrollableArea::pixelStep(ScrollbarOrientation) const |
-{ |
- return 1; |
-} |
- |
-} // namespace WebCore |