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author | Konstantin Tokarev <annulen@yandex.ru> | 2016-08-25 19:20:41 +0300 |
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committer | Konstantin Tokarev <annulen@yandex.ru> | 2017-02-02 12:30:55 +0000 |
commit | 6882a04fb36642862b11efe514251d32070c3d65 (patch) | |
tree | b7959826000b061fd5ccc7512035c7478742f7b0 /Source/WebCore/dom/NodeRenderingContext.cpp | |
parent | ab6df191029eeeb0b0f16f127d553265659f739e (diff) | |
download | qtwebkit-6882a04fb36642862b11efe514251d32070c3d65.tar.gz |
Imported QtWebKit TP3 (git b57bc6801f1876c3220d5a4bfea33d620d477443)
Change-Id: I3b1d8a2808782c9f34d50240000e20cb38d3680f
Reviewed-by: Konstantin Tokarev <annulen@yandex.ru>
Diffstat (limited to 'Source/WebCore/dom/NodeRenderingContext.cpp')
-rw-r--r-- | Source/WebCore/dom/NodeRenderingContext.cpp | 338 |
1 files changed, 0 insertions, 338 deletions
diff --git a/Source/WebCore/dom/NodeRenderingContext.cpp b/Source/WebCore/dom/NodeRenderingContext.cpp deleted file mode 100644 index f33e5742d..000000000 --- a/Source/WebCore/dom/NodeRenderingContext.cpp +++ /dev/null @@ -1,338 +0,0 @@ -/* - * Copyright (C) 1999 Lars Knoll (knoll@kde.org) - * (C) 1999 Antti Koivisto (koivisto@kde.org) - * (C) 2001 Dirk Mueller (mueller@kde.org) - * Copyright (C) 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011 Apple Inc. All rights reserved. - * Copyright (C) 2008, 2009 Torch Mobile Inc. All rights reserved. (http://www.torchmobile.com/) - * Copyright (C) 2011 Google Inc. All rights reserved. - * - * This library is free software; you can redistribute it and/or - * modify it under the terms of the GNU Library General Public - * License as published by the Free Software Foundation; either - * version 2 of the License, or (at your option) any later version. - * - * This library is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - * Library General Public License for more details. - * - * You should have received a copy of the GNU Library General Public License - * along with this library; see the file COPYING.LIB. If not, write to - * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, - * Boston, MA 02110-1301, USA. - * - */ - -#include "config.h" -#include "NodeRenderingContext.h" - -#include "ContainerNode.h" -#include "ContentDistributor.h" -#include "ElementShadow.h" -#include "FlowThreadController.h" -#include "HTMLContentElement.h" -#include "HTMLInputElement.h" -#include "HTMLNames.h" -#include "Node.h" -#include "PseudoElement.h" -#include "RenderFullScreen.h" -#include "RenderNamedFlowThread.h" -#include "RenderObject.h" -#include "RenderText.h" -#include "RenderView.h" -#include "ShadowRoot.h" -#include "StyleInheritedData.h" -#include "StyleResolver.h" -#include "Text.h" - -#if ENABLE(SVG) -#include "SVGNames.h" -#endif - -namespace WebCore { - -using namespace HTMLNames; - -NodeRenderingContext::NodeRenderingContext(Node* node) - : m_node(node) - , m_parentFlowRenderer(0) -{ - m_renderingParent = NodeRenderingTraversal::parent(node, &m_parentDetails); -} - -NodeRenderingContext::NodeRenderingContext(Node* node, RenderStyle* style) - : m_node(node) - , m_renderingParent(0) - , m_style(style) - , m_parentFlowRenderer(0) -{ -} - -NodeRenderingContext::NodeRenderingContext(Node* node, const Node::AttachContext& context) - : m_node(node) - , m_style(context.resolvedStyle) - , m_parentFlowRenderer(0) -{ - m_renderingParent = NodeRenderingTraversal::parent(node, &m_parentDetails); -} - -NodeRenderingContext::~NodeRenderingContext() -{ -} - -static bool isRendererReparented(const RenderObject* renderer) -{ - if (!renderer->node()->isElementNode()) - return false; - if (renderer->style() && !renderer->style()->flowThread().isEmpty()) - return true; -#if ENABLE(DIALOG_ELEMENT) - if (toElement(renderer->node())->isInTopLayer()) - return true; -#endif - return false; -} - -RenderObject* NodeRenderingContext::nextRenderer() const -{ - if (RenderObject* renderer = m_node->renderer()) - return renderer->nextSibling(); - -#if ENABLE(DIALOG_ELEMENT) - Element* element = m_node->isElementNode() ? toElement(m_node) : 0; - if (element && element->isInTopLayer()) { - const Vector<RefPtr<Element> >& topLayerElements = element->document()->topLayerElements(); - size_t position = topLayerElements.find(element); - ASSERT(position != notFound); - for (size_t i = position + 1; i < topLayerElements.size(); ++i) { - if (RenderObject* renderer = topLayerElements[i]->renderer()) - return renderer; - } - return 0; - } -#endif - - if (m_parentFlowRenderer) - return m_parentFlowRenderer->nextRendererForNode(m_node); - - // Avoid an O(N^2) problem with this function by not checking for - // nextRenderer() when the parent element hasn't attached yet. - if (m_renderingParent && !m_renderingParent->attached()) - return 0; - - for (Node* sibling = NodeRenderingTraversal::nextSibling(m_node); sibling; sibling = NodeRenderingTraversal::nextSibling(sibling)) { - RenderObject* renderer = sibling->renderer(); - if (renderer && !isRendererReparented(renderer)) - return renderer; - } - - return 0; -} - -RenderObject* NodeRenderingContext::previousRenderer() const -{ - if (RenderObject* renderer = m_node->renderer()) - return renderer->previousSibling(); - -#if ENABLE(DIALOG_ELEMENT) - // FIXME: This doesn't work correctly for things in the top layer that are - // display: none. We'd need to duplicate the logic in nextRenderer, but since - // nothing needs that yet just assert. - ASSERT(!m_node->isElementNode() || !toElement(m_node)->isInTopLayer()); -#endif - - if (m_parentFlowRenderer) - return m_parentFlowRenderer->previousRendererForNode(m_node); - - // FIXME: We should have the same O(N^2) avoidance as nextRenderer does - // however, when I tried adding it, several tests failed. - for (Node* sibling = NodeRenderingTraversal::previousSibling(m_node); sibling; sibling = NodeRenderingTraversal::previousSibling(sibling)) { - RenderObject* renderer = sibling->renderer(); - if (renderer && !isRendererReparented(renderer)) - return renderer; - } - - return 0; -} - -RenderObject* NodeRenderingContext::parentRenderer() const -{ - if (RenderObject* renderer = m_node->renderer()) - return renderer->parent(); - -#if ENABLE(DIALOG_ELEMENT) - if (m_node->isElementNode() && toElement(m_node)->isInTopLayer()) { - // The parent renderer of top layer elements is the RenderView, but only - // if the normal parent would have had a renderer. - // FIXME: This behavior isn't quite right as the spec for top layer - // only talks about display: none ancestors so putting a <dialog> inside - // an <optgroup> seems like it should still work even though this check - // will prevent it. - if (!m_renderingParent || !m_renderingParent->renderer()) - return 0; - return m_node->document()->renderView(); - } -#endif - - if (m_parentFlowRenderer) - return m_parentFlowRenderer; - - return m_renderingParent ? m_renderingParent->renderer() : 0; -} - -bool NodeRenderingContext::shouldCreateRenderer() const -{ - if (!m_node->document()->shouldCreateRenderers()) - return false; - if (!m_renderingParent) - return false; - RenderObject* parentRenderer = this->parentRenderer(); - if (!parentRenderer) - return false; - if (!parentRenderer->canHaveChildren() && !(m_node->isPseudoElement() && parentRenderer->canHaveGeneratedChildren())) - return false; - if (!m_renderingParent->childShouldCreateRenderer(*this)) - return false; - return true; -} - -// Check the specific case of elements that are children of regions but are flowed into a flow thread themselves. -bool NodeRenderingContext::elementInsideRegionNeedsRenderer() -{ - bool elementInsideRegionNeedsRenderer = false; - -#if ENABLE(CSS_REGIONS) - Element* element = toElement(m_node); - RenderObject* parentRenderer = this->parentRenderer(); - if ((parentRenderer && !parentRenderer->canHaveChildren() && parentRenderer->isRenderRegion()) - || (!parentRenderer && element->parentElement() && element->parentElement()->isInsideRegion())) { - - if (!m_style) - m_style = element->styleForRenderer(); - - elementInsideRegionNeedsRenderer = element->shouldMoveToFlowThread(m_style.get()); - - // Children of this element will only be allowed to be flowed into other flow-threads if display is NOT none. - if (element->rendererIsNeeded(*this)) - element->setIsInsideRegion(true); - } -#endif - - return elementInsideRegionNeedsRenderer; -} - -void NodeRenderingContext::moveToFlowThreadIfNeeded() -{ -#if ENABLE(CSS_REGIONS) - Element* element = toElement(m_node); - - if (!element->shouldMoveToFlowThread(m_style.get())) - return; - - ASSERT(m_node->document()->renderView()); - FlowThreadController* flowThreadController = m_node->document()->renderView()->flowThreadController(); - m_parentFlowRenderer = flowThreadController->ensureRenderFlowThreadWithName(m_style->flowThread()); - flowThreadController->registerNamedFlowContentNode(m_node, m_parentFlowRenderer); -#endif -} - -bool NodeRenderingContext::isOnEncapsulationBoundary() const -{ - return isOnUpperEncapsulationBoundary() || isLowerEncapsulationBoundary(m_parentDetails.insertionPoint()) || isLowerEncapsulationBoundary(m_node->parentNode()); -} - -bool NodeRenderingContext::isOnUpperEncapsulationBoundary() const -{ - return m_node->parentNode() && m_node->parentNode()->isShadowRoot(); -} - -void NodeRenderingContext::createRendererForElementIfNeeded() -{ - ASSERT(!m_node->renderer()); - - Element* element = toElement(m_node); - - element->setIsInsideRegion(false); - - if (!shouldCreateRenderer() && !elementInsideRegionNeedsRenderer()) - return; - - if (!m_style) - m_style = element->styleForRenderer(); - ASSERT(m_style); - - moveToFlowThreadIfNeeded(); - - if (!element->rendererIsNeeded(*this)) - return; - - RenderObject* parentRenderer = this->parentRenderer(); - RenderObject* nextRenderer = this->nextRenderer(); - - Document* document = element->document(); - RenderObject* newRenderer = element->createRenderer(document->renderArena(), m_style.get()); - if (!newRenderer) - return; - if (!parentRenderer->isChildAllowed(newRenderer, m_style.get())) { - newRenderer->destroy(); - return; - } - - // Make sure the RenderObject already knows it is going to be added to a RenderFlowThread before we set the style - // for the first time. Otherwise code using inRenderFlowThread() in the styleWillChange and styleDidChange will fail. - newRenderer->setFlowThreadState(parentRenderer->flowThreadState()); - - element->setRenderer(newRenderer); - newRenderer->setAnimatableStyle(m_style.release()); // setAnimatableStyle() can depend on renderer() already being set. - -#if ENABLE(FULLSCREEN_API) - if (document->webkitIsFullScreen() && document->webkitCurrentFullScreenElement() == element) { - newRenderer = RenderFullScreen::wrapRenderer(newRenderer, parentRenderer, document); - if (!newRenderer) - return; - } -#endif - // Note: Adding newRenderer instead of renderer(). renderer() may be a child of newRenderer. - parentRenderer->addChild(newRenderer, nextRenderer); -} - -void NodeRenderingContext::createRendererForTextIfNeeded() -{ - ASSERT(!m_node->renderer()); - - Text* textNode = toText(m_node); - - if (!shouldCreateRenderer()) - return; - - RenderObject* parentRenderer = this->parentRenderer(); - ASSERT(parentRenderer); - Document* document = textNode->document(); - - if (resetStyleInheritance()) - m_style = document->ensureStyleResolver()->defaultStyleForElement(); - else - m_style = parentRenderer->style(); - - if (!textNode->textRendererIsNeeded(*this)) - return; - RenderText* newRenderer = textNode->createTextRenderer(document->renderArena(), m_style.get()); - if (!newRenderer) - return; - if (!parentRenderer->isChildAllowed(newRenderer, m_style.get())) { - newRenderer->destroy(); - return; - } - - // Make sure the RenderObject already knows it is going to be added to a RenderFlowThread before we set the style - // for the first time. Otherwise code using inRenderFlowThread() in the styleWillChange and styleDidChange will fail. - newRenderer->setFlowThreadState(parentRenderer->flowThreadState()); - - RenderObject* nextRenderer = this->nextRenderer(); - textNode->setRenderer(newRenderer); - // Parent takes care of the animations, no need to call setAnimatableStyle. - newRenderer->setStyle(m_style.release()); - parentRenderer->addChild(newRenderer, nextRenderer); -} - -} |