1 /* 2 * Copyright (C) 2013 Google Inc. All rights reserved. 3 * 4 * Redistribution and use in source and binary forms, with or without 5 * modification, are permitted provided that the following conditions are 6 * met: 7 * 8 * * Redistributions of source code must retain the above copyright 9 * notice, this list of conditions and the following disclaimer. 10 * * Redistributions in binary form must reproduce the above 11 * copyright notice, this list of conditions and the following disclaimer 12 * in the documentation and/or other materials provided with the 13 * distribution. 14 * * Neither the name of Google Inc. nor the names of its 15 * contributors may be used to endorse or promote products derived from 16 * this software without specific prior written permission. 17 * 18 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 19 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 20 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR 21 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 22 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 23 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 24 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 25 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 26 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 27 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 28 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 29 */ 30 31 #include "config.h" 32 #include "core/rendering/SubtreeLayoutScope.h" 33 34 #include "core/frame/FrameView.h" 35 #include "core/rendering/RenderObject.h" 36 37 namespace WebCore { 38 39 SubtreeLayoutScope::SubtreeLayoutScope(RenderObject& root) 40 : m_root(root) 41 { 42 RELEASE_ASSERT(m_root.document().view()->isInPerformLayout()); 43 } 44 45 SubtreeLayoutScope::~SubtreeLayoutScope() 46 { 47 RELEASE_ASSERT(!m_root.needsLayout()); 48 49 #ifndef NDEBUG 50 for (HashSet<RenderObject*>::iterator it = m_renderersToLayout.begin(); it != m_renderersToLayout.end(); ++it) 51 (*it)->assertRendererLaidOut(); 52 #endif 53 } 54 55 void SubtreeLayoutScope::setNeedsLayout(RenderObject* descendant) 56 { 57 ASSERT(descendant->isDescendantOf(&m_root)); 58 descendant->setNeedsLayoutAndFullPaintInvalidation(MarkContainingBlockChain, this); 59 } 60 61 void SubtreeLayoutScope::setChildNeedsLayout(RenderObject* descendant) 62 { 63 ASSERT(descendant->isDescendantOf(&m_root)); 64 descendant->setChildNeedsLayout(MarkContainingBlockChain, this); 65 } 66 67 void SubtreeLayoutScope::addRendererToLayout(RenderObject* renderer) 68 { 69 #ifndef NDEBUG 70 m_renderersToLayout.add(renderer); 71 #endif 72 } 73 74 } 75
