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1 /* | 1 /* |
2 * Copyright (C) 1999 Lars Knoll (knoll@kde.org) | 2 * Copyright (C) 1999 Lars Knoll (knoll@kde.org) |
3 * (C) 1999 Antti Koivisto (koivisto@kde.org) | 3 * (C) 1999 Antti Koivisto (koivisto@kde.org) |
4 * (C) 2005 Allan Sandfeld Jensen (kde@carewolf.com) | 4 * (C) 2005 Allan Sandfeld Jensen (kde@carewolf.com) |
5 * (C) 2005, 2006 Samuel Weinig (sam.weinig@gmail.com) | 5 * (C) 2005, 2006 Samuel Weinig (sam.weinig@gmail.com) |
6 * Copyright (C) 2005, 2006, 2007, 2008, 2009 Apple Inc. All rights reserved. | 6 * Copyright (C) 2005, 2006, 2007, 2008, 2009 Apple Inc. All rights reserved. |
7 * Copyright (C) 2010 Google Inc. All rights reserved. | 7 * Copyright (C) 2010 Google Inc. All rights reserved. |
8 * | 8 * |
9 * This library is free software; you can redistribute it and/or | 9 * This library is free software; you can redistribute it and/or |
10 * modify it under the terms of the GNU Library General Public | 10 * modify it under the terms of the GNU Library General Public |
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26 #include "config.h" | 26 #include "config.h" |
27 #include "core/rendering/RenderBoxModelObject.h" | 27 #include "core/rendering/RenderBoxModelObject.h" |
28 | 28 |
29 #include "HTMLNames.h" | 29 #include "HTMLNames.h" |
30 #include "core/frame/Settings.h" | 30 #include "core/frame/Settings.h" |
31 #include "core/html/HTMLFrameOwnerElement.h" | 31 #include "core/html/HTMLFrameOwnerElement.h" |
32 #include "core/page/scrolling/ScrollingConstraints.h" | 32 #include "core/page/scrolling/ScrollingConstraints.h" |
33 #include "core/rendering/CompositedLayerMapping.h" | 33 #include "core/rendering/CompositedLayerMapping.h" |
34 #include "core/rendering/ImageQualityController.h" | 34 #include "core/rendering/ImageQualityController.h" |
35 #include "core/rendering/RenderBlock.h" | 35 #include "core/rendering/RenderBlock.h" |
| 36 #include "core/rendering/RenderFlowThread.h" |
36 #include "core/rendering/RenderGeometryMap.h" | 37 #include "core/rendering/RenderGeometryMap.h" |
37 #include "core/rendering/RenderInline.h" | 38 #include "core/rendering/RenderInline.h" |
38 #include "core/rendering/RenderLayer.h" | 39 #include "core/rendering/RenderLayer.h" |
39 #include "core/rendering/RenderLayerCompositor.h" | 40 #include "core/rendering/RenderLayerCompositor.h" |
40 #include "core/rendering/RenderNamedFlowThread.h" | |
41 #include "core/rendering/RenderRegion.h" | 41 #include "core/rendering/RenderRegion.h" |
42 #include "core/rendering/RenderView.h" | 42 #include "core/rendering/RenderView.h" |
43 #include "core/rendering/style/ShadowList.h" | 43 #include "core/rendering/style/ShadowList.h" |
44 #include "platform/geometry/TransformState.h" | 44 #include "platform/geometry/TransformState.h" |
45 #include "platform/graphics/DrawLooper.h" | 45 #include "platform/graphics/DrawLooper.h" |
46 #include "platform/graphics/GraphicsContextStateSaver.h" | 46 #include "platform/graphics/GraphicsContextStateSaver.h" |
47 #include "platform/graphics/Path.h" | 47 #include "platform/graphics/Path.h" |
48 #include "wtf/CurrentTime.h" | 48 #include "wtf/CurrentTime.h" |
49 | 49 |
50 using namespace std; | 50 using namespace std; |
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287 | 287 |
288 if (const RenderBoxModelObject* offsetParent = element->renderBoxModelObject
()) { | 288 if (const RenderBoxModelObject* offsetParent = element->renderBoxModelObject
()) { |
289 if (offsetParent->isBox() && !offsetParent->isBody()) | 289 if (offsetParent->isBox() && !offsetParent->isBody()) |
290 referencePoint.move(-toRenderBox(offsetParent)->borderLeft(), -toRen
derBox(offsetParent)->borderTop()); | 290 referencePoint.move(-toRenderBox(offsetParent)->borderLeft(), -toRen
derBox(offsetParent)->borderTop()); |
291 if (!isOutOfFlowPositioned() || flowThreadContainingBlock()) { | 291 if (!isOutOfFlowPositioned() || flowThreadContainingBlock()) { |
292 if (isRelPositioned()) | 292 if (isRelPositioned()) |
293 referencePoint.move(relativePositionOffset()); | 293 referencePoint.move(relativePositionOffset()); |
294 else if (isStickyPositioned()) | 294 else if (isStickyPositioned()) |
295 referencePoint.move(stickyPositionOffset()); | 295 referencePoint.move(stickyPositionOffset()); |
296 | 296 |
297 // CSS regions specification says that region flows should return th
e body element as their offsetParent. | |
298 // Since we will bypass the body’s renderer anyway, just end the loo
p if we encounter a region flow (named flow thread). | |
299 // See http://dev.w3.org/csswg/css-regions/#cssomview-offset-attribu
tes | |
300 RenderObject* current; | 297 RenderObject* current; |
301 for (current = parent(); current != offsetParent && !current->isRend
erNamedFlowThread() && current->parent(); current = current->parent()) { | 298 for (current = parent(); current != offsetParent && current->parent(
); current = current->parent()) { |
302 // FIXME: What are we supposed to do inside SVG content? | 299 // FIXME: What are we supposed to do inside SVG content? |
303 if (!isOutOfFlowPositioned()) { | 300 if (!isOutOfFlowPositioned()) { |
304 if (current->isBox() && !current->isTableRow()) | 301 if (current->isBox() && !current->isTableRow()) |
305 referencePoint.moveBy(toRenderBox(current)->topLeftLocat
ion()); | 302 referencePoint.moveBy(toRenderBox(current)->topLeftLocat
ion()); |
306 referencePoint.move(current->parent()->offsetForColumns(refe
rencePoint)); | 303 referencePoint.move(current->parent()->offsetForColumns(refe
rencePoint)); |
307 } | 304 } |
308 } | 305 } |
309 | 306 |
310 // Compute the offset position for elements inside named flow thread
s for which the offsetParent was the body. | 307 if (offsetParent->isBox() && offsetParent->isBody() && !offsetParent
->isPositioned()) |
311 // See https://code.google.com/p/chromium/issues/detail?id=242168 | |
312 if (current->isRenderNamedFlowThread()) | |
313 referencePoint = toRenderNamedFlowThread(current)->adjustedPosit
ionRelativeToOffsetParent(*this, referencePoint); | |
314 else if (offsetParent->isBox() && offsetParent->isBody() && !offsetP
arent->isPositioned()) | |
315 referencePoint.moveBy(toRenderBox(offsetParent)->topLeftLocation
()); | 308 referencePoint.moveBy(toRenderBox(offsetParent)->topLeftLocation
()); |
316 } | 309 } |
317 } | 310 } |
318 | 311 |
319 return referencePoint; | 312 return referencePoint; |
320 } | 313 } |
321 | 314 |
322 void RenderBoxModelObject::computeStickyPositionConstraints(StickyPositionViewpo
rtConstraints& constraints, const FloatRect& constrainingRect) const | 315 void RenderBoxModelObject::computeStickyPositionConstraints(StickyPositionViewpo
rtConstraints& constraints, const FloatRect& constrainingRect) const |
323 { | 316 { |
324 RenderBlock* containingBlock = this->containingBlock(); | 317 RenderBlock* containingBlock = this->containingBlock(); |
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378 } | 371 } |
379 | 372 |
380 LayoutSize RenderBoxModelObject::stickyPositionOffset() const | 373 LayoutSize RenderBoxModelObject::stickyPositionOffset() const |
381 { | 374 { |
382 FloatRect constrainingRect; | 375 FloatRect constrainingRect; |
383 | 376 |
384 ASSERT(hasLayer()); | 377 ASSERT(hasLayer()); |
385 RenderLayer* enclosingClippingLayer = layer()->enclosingOverflowClipLayer(Ex
cludeSelf); | 378 RenderLayer* enclosingClippingLayer = layer()->enclosingOverflowClipLayer(Ex
cludeSelf); |
386 if (enclosingClippingLayer) { | 379 if (enclosingClippingLayer) { |
387 RenderBox* enclosingClippingBox = toRenderBox(enclosingClippingLayer->re
nderer()); | 380 RenderBox* enclosingClippingBox = toRenderBox(enclosingClippingLayer->re
nderer()); |
388 LayoutRect clipRect = enclosingClippingBox->overflowClipRect(LayoutPoint
(), 0); // FIXME: make this work in regions. | 381 LayoutRect clipRect = enclosingClippingBox->overflowClipRect(LayoutPoint
()); |
389 constrainingRect = enclosingClippingBox->localToContainerQuad(FloatRect(
clipRect), view()).boundingBox(); | 382 constrainingRect = enclosingClippingBox->localToContainerQuad(FloatRect(
clipRect), view()).boundingBox(); |
390 } else { | 383 } else { |
391 LayoutRect viewportRect = view()->frameView()->viewportConstrainedVisibl
eContentRect(); | 384 LayoutRect viewportRect = view()->frameView()->viewportConstrainedVisibl
eContentRect(); |
392 constrainingRect = viewportRect; | 385 constrainingRect = viewportRect; |
393 } | 386 } |
394 | 387 |
395 StickyPositionViewportConstraints constraints; | 388 StickyPositionViewportConstraints constraints; |
396 computeStickyPositionConstraints(constraints, constrainingRect); | 389 computeStickyPositionConstraints(constraints, constrainingRect); |
397 | 390 |
398 // The sticky offset is physical, so we can just return the delta computed i
n absolute coords (though it may be wrong with transforms). | 391 // The sticky offset is physical, so we can just return the delta computed i
n absolute coords (though it may be wrong with transforms). |
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619 int bLeft = includeLeftEdge ? borderLeft() : 0; | 612 int bLeft = includeLeftEdge ? borderLeft() : 0; |
620 int bRight = includeRightEdge ? borderRight() : 0; | 613 int bRight = includeRightEdge ? borderRight() : 0; |
621 LayoutUnit pLeft = includeLeftEdge ? paddingLeft() : LayoutUnit(); | 614 LayoutUnit pLeft = includeLeftEdge ? paddingLeft() : LayoutUnit(); |
622 LayoutUnit pRight = includeRightEdge ? paddingRight() : LayoutUnit(); | 615 LayoutUnit pRight = includeRightEdge ? paddingRight() : LayoutUnit(); |
623 | 616 |
624 GraphicsContextStateSaver clipWithScrollingStateSaver(*context, clippedWithL
ocalScrolling); | 617 GraphicsContextStateSaver clipWithScrollingStateSaver(*context, clippedWithL
ocalScrolling); |
625 LayoutRect scrolledPaintRect = rect; | 618 LayoutRect scrolledPaintRect = rect; |
626 if (clippedWithLocalScrolling) { | 619 if (clippedWithLocalScrolling) { |
627 // Clip to the overflow area. | 620 // Clip to the overflow area. |
628 RenderBox* thisBox = toRenderBox(this); | 621 RenderBox* thisBox = toRenderBox(this); |
629 context->clip(thisBox->overflowClipRect(rect.location(), paintInfo.rende
rRegion)); | 622 context->clip(thisBox->overflowClipRect(rect.location())); |
630 | 623 |
631 // Adjust the paint rect to reflect a scrolled content box with borders
at the ends. | 624 // Adjust the paint rect to reflect a scrolled content box with borders
at the ends. |
632 IntSize offset = thisBox->scrolledContentOffset(); | 625 IntSize offset = thisBox->scrolledContentOffset(); |
633 scrolledPaintRect.move(-offset); | 626 scrolledPaintRect.move(-offset); |
634 scrolledPaintRect.setWidth(bLeft + thisBox->scrollWidth() + bRight); | 627 scrolledPaintRect.setWidth(bLeft + thisBox->scrollWidth() + bRight); |
635 scrolledPaintRect.setHeight(borderTop() + thisBox->scrollHeight() + bord
erBottom()); | 628 scrolledPaintRect.setHeight(borderTop() + thisBox->scrollHeight() + bord
erBottom()); |
636 } | 629 } |
637 | 630 |
638 GraphicsContextStateSaver backgroundClipStateSaver(*context, false); | 631 GraphicsContextStateSaver backgroundClipStateSaver(*context, false); |
639 IntRect maskRect; | 632 IntRect maskRect; |
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759 if (bgLayer->clip() == TextFillBox) { | 752 if (bgLayer->clip() == TextFillBox) { |
760 // Create the text mask layer. | 753 // Create the text mask layer. |
761 context->setCompositeOperation(CompositeDestinationIn); | 754 context->setCompositeOperation(CompositeDestinationIn); |
762 context->beginTransparencyLayer(1); | 755 context->beginTransparencyLayer(1); |
763 | 756 |
764 // FIXME: Workaround for https://code.google.com/p/skia/issues/detail?id
=1291. | 757 // FIXME: Workaround for https://code.google.com/p/skia/issues/detail?id
=1291. |
765 context->clearRect(maskRect); | 758 context->clearRect(maskRect); |
766 | 759 |
767 // Now draw the text into the mask. We do this by painting using a speci
al paint phase that signals to | 760 // Now draw the text into the mask. We do this by painting using a speci
al paint phase that signals to |
768 // InlineTextBoxes that they should just add their contents to the clip. | 761 // InlineTextBoxes that they should just add their contents to the clip. |
769 PaintInfo info(context, maskRect, PaintPhaseTextClip, PaintBehaviorForce
BlackText, 0, paintInfo.renderRegion); | 762 PaintInfo info(context, maskRect, PaintPhaseTextClip, PaintBehaviorForce
BlackText, 0); |
770 context->setCompositeOperation(CompositeSourceOver); | 763 context->setCompositeOperation(CompositeSourceOver); |
771 if (box) { | 764 if (box) { |
772 RootInlineBox* root = box->root(); | 765 RootInlineBox* root = box->root(); |
773 box->paint(info, LayoutPoint(scrolledPaintRect.x() - box->x(), scrol
ledPaintRect.y() - box->y()), root->lineTop(), root->lineBottom()); | 766 box->paint(info, LayoutPoint(scrolledPaintRect.x() - box->x(), scrol
ledPaintRect.y() - box->y()), root->lineTop(), root->lineBottom()); |
774 } else { | 767 } else { |
775 LayoutSize localOffset = isBox() ? toRenderBox(this)->locationOffset
() : LayoutSize(); | 768 LayoutSize localOffset = isBox() ? toRenderBox(this)->locationOffset
() : LayoutSize(); |
776 paint(info, scrolledPaintRect.location() - localOffset); | 769 paint(info, scrolledPaintRect.location() - localOffset); |
777 } | 770 } |
778 | 771 |
779 context->endLayer(); | 772 context->endLayer(); |
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2838 ASSERT(!beforeChild || toBoxModelObject == beforeChild->parent()); | 2831 ASSERT(!beforeChild || toBoxModelObject == beforeChild->parent()); |
2839 for (RenderObject* child = startChild; child && child != endChild; ) { | 2832 for (RenderObject* child = startChild; child && child != endChild; ) { |
2840 // Save our next sibling as moveChildTo will clear it. | 2833 // Save our next sibling as moveChildTo will clear it. |
2841 RenderObject* nextSibling = child->nextSibling(); | 2834 RenderObject* nextSibling = child->nextSibling(); |
2842 moveChildTo(toBoxModelObject, child, beforeChild, fullRemoveInsert); | 2835 moveChildTo(toBoxModelObject, child, beforeChild, fullRemoveInsert); |
2843 child = nextSibling; | 2836 child = nextSibling; |
2844 } | 2837 } |
2845 } | 2838 } |
2846 | 2839 |
2847 } // namespace WebCore | 2840 } // namespace WebCore |
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