Source/core/layout/LayoutObject.cpp - Issue 1145993002: Refactor root element background painting

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Issue 1145993002: Refactor root element background painting (Closed) Base URL: svn://svn.chromium.org/blink/trunk

Patch Set: revise for xianzhu's comment Created 5 years, 6 months ago

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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) 2000 Dirk Mueller (mueller@kde.org)	4 * (C) 2000 Dirk Mueller (mueller@kde.org)

5 * (C) 2004 Allan Sandfeld Jensen (kde@carewolf.com)	5 * (C) 2004 Allan Sandfeld Jensen (kde@carewolf.com)

6 * Copyright (C) 2004, 2005, 2006, 2007, 2008, 2011 Apple Inc. All rights reserv ed.	6 * Copyright (C) 2004, 2005, 2006, 2007, 2008, 2011 Apple Inc. All rights reserv ed.

7 * Copyright (C) 2009 Google Inc. All rights reserved.	7 * Copyright (C) 2009 Google Inc. All rights reserved.

8 * Copyright (C) 2009 Torch Mobile Inc. All rights reserved. (http://www.torchmo bile.com/)	8 * Copyright (C) 2009 Torch Mobile Inc. All rights reserved. (http://www.torchmo bile.com/)

9 *	9 *

10 * This library is free software; you can redistribute it and/or	10 * This library is free software; you can redistribute it and/or

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2304 bool LayoutObject::isRooted() const	2304 bool LayoutObject::isRooted() const

2305 {	2305 {

2306 const LayoutObject* object = this;	2306 const LayoutObject* object = this;

2307 while (object->parent() && !object->hasLayer())	2307 while (object->parent() && !object->hasLayer())

2308 object = object->parent();	2308 object = object->parent();

2309 if (object->hasLayer())	2309 if (object->hasLayer())

2310 return toLayoutBoxModelObject(object)->layer()->root()->isRootLayer();	2310 return toLayoutBoxModelObject(object)->layer()->root()->isRootLayer();

2311 return false;	2311 return false;

2312 }	2312 }

2313	2313

2314 LayoutObject* LayoutObject::layoutObjectForRootBackground()

2315 {

2316 ASSERT(isDocumentElement());

2317 if (!hasBackground() && isHTMLHtmlElement(node())) {

2318 // Locate the <body> element using the DOM. This is easier than trying

2319 // to crawl around a layout tree with potential :before/:after content a nd

2320 // anonymous blocks created by inline <body> tags etc. We can locate the <body>

2321 // layout object very easily via the DOM.

2322 HTMLElement* body = document().body();

2323 LayoutObject* bodyObject = isHTMLBodyElement(body) ? body->layoutObject( ) : 0;

2324 if (bodyObject)

2325 return bodyObject;

2326 }

2327

2328 return this;

2329 }

2330

2331 RespectImageOrientationEnum LayoutObject::shouldRespectImageOrientation() const	2314 RespectImageOrientationEnum LayoutObject::shouldRespectImageOrientation() const

2332 {	2315 {

2333 // Respect the image's orientation if it's being used as a full-page image o r it's	2316 // Respect the image's orientation if it's being used as a full-page image o r it's

2334 // an <img> and the setting to respect it everywhere is set.	2317 // an <img> and the setting to respect it everywhere is set.

2335 return document().isImageDocument()	2318 return document().isImageDocument()

2336 \|\| (document().settings() && document().settings()->shouldRespectImageOr ientation() && isHTMLImageElement(node())) ? RespectImageOrientation : DoNotResp ectImageOrientation;	2319 \|\| (document().settings() && document().settings()->shouldRespectImageOr ientation() && isHTMLImageElement(node())) ? RespectImageOrientation : DoNotResp ectImageOrientation;

2337 }	2320 }

2338	2321

2339 LayoutObject* LayoutObject::container(const LayoutBoxModelObject* paintInvalidat ionContainer, bool* paintInvalidationContainerSkipped) const	2322 LayoutObject* LayoutObject::container(const LayoutBoxModelObject* paintInvalidat ionContainer, bool* paintInvalidationContainerSkipped) const

2340 {	2323 {

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3176 {	3159 {

3177 // Only full invalidation reasons are allowed.	3160 // Only full invalidation reasons are allowed.

3178 ASSERT(isFullPaintInvalidationReason(reason));	3161 ASSERT(isFullPaintInvalidationReason(reason));

3179	3162

3180 bool isUpgradingDelayedFullToFull = m_bitfields.fullPaintInvalidationReason( ) == PaintInvalidationDelayedFull && reason != PaintInvalidationDelayedFull;	3163 bool isUpgradingDelayedFullToFull = m_bitfields.fullPaintInvalidationReason( ) == PaintInvalidationDelayedFull && reason != PaintInvalidationDelayedFull;

3181	3164

3182 if (m_bitfields.fullPaintInvalidationReason() == PaintInvalidationNone \|\| is UpgradingDelayedFullToFull) {	3165 if (m_bitfields.fullPaintInvalidationReason() == PaintInvalidationNone \|\| is UpgradingDelayedFullToFull) {

3183 if (reason == PaintInvalidationFull)	3166 if (reason == PaintInvalidationFull)

3184 reason = documentLifecycleBasedPaintInvalidationReason(document().li fecycle());	3167 reason = documentLifecycleBasedPaintInvalidationReason(document().li fecycle());

3185 m_bitfields.setFullPaintInvalidationReason(reason);	3168 m_bitfields.setFullPaintInvalidationReason(reason);

3186

3187 if (RuntimeEnabledFeatures::slimmingPaintEnabled() && isBody()) {

3188 // The rootObject paints view's background. We need to invalidate it when

3189 // view's background changes because of change of body's style.

3190 // FIXME: The condition is broader than needed for simplicity.

3191 // Might remove this when fixing crbug.com/475115.

3192 if (LayoutObject* rootObject = document().documentElement()->layoutO bject())

3193 rootObject->setShouldDoFullPaintInvalidation();

3194 }

3195 }	3169 }

3196	3170

3197 if (!isUpgradingDelayedFullToFull) {	3171 if (!isUpgradingDelayedFullToFull) {

3198 ASSERT(document().lifecycle().state() != DocumentLifecycle::InPaintInval idation);	3172 ASSERT(document().lifecycle().state() != DocumentLifecycle::InPaintInval idation);

3199 frame()->page()->animator().scheduleVisualUpdate(); // In case that this is called outside of FrameView::updateLayoutAndStyleForPainting().	3173 frame()->page()->animator().scheduleVisualUpdate(); // In case that this is called outside of FrameView::updateLayoutAndStyleForPainting().

3200 markContainerChainForPaintInvalidation();	3174 markContainerChainForPaintInvalidation();

3201 }	3175 }

3202 }	3176 }

3203	3177

3204 void LayoutObject::setMayNeedPaintInvalidation()	3178 void LayoutObject::setMayNeedPaintInvalidation()

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3305 const blink::LayoutObject* root = object1;	3279 const blink::LayoutObject* root = object1;

3306 while (root->parent())	3280 while (root->parent())

3307 root = root->parent();	3281 root = root->parent();

3308 root->showLayoutTreeAndMark(object1, "*", object2, "-", 0);	3282 root->showLayoutTreeAndMark(object1, "*", object2, "-", 0);

3309 } else {	3283 } else {

3310 fprintf(stderr, "Cannot showLayoutTree. Root is (nil)\n");	3284 fprintf(stderr, "Cannot showLayoutTree. Root is (nil)\n");

3311 }	3285 }

3312 }	3286 }

3313	3287

3314 #endif	3288 #endif

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« Source/core/layout/LayoutBoxModelObject.cpp ('K') | « Source/core/layout/LayoutObject.h ('k') | Source/core/layout/LayoutView.h » ('j') | Source/core/paint/BoxPainter.h » ('J')