Move rendering/RenderObject to layout/LayoutObject.

Source/core/rendering/RenderObjectChildList.cpp

-/*
- * Copyright (C) 2009, 2010 Apple Inc. All rights reserved.
- * Copyright (C) Research In Motion Limited 2010. All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- * 1. Redistributions of source code must retain the above copyright
- *    notice, this list of conditions and the following disclaimer.
- * 2. 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.
- *
- * THIS SOFTWARE IS PROVIDED BY APPLE COMPUTER, INC. ``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 APPLE COMPUTER, INC. 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/rendering/RenderObjectChildList.h"
-
-#include "core/dom/AXObjectCache.h"
-#include "core/layout/Layer.h"
-#include "core/layout/LayoutCounter.h"
-#include "core/rendering/RenderObject.h"
-#include "core/rendering/RenderView.h"
-#include "core/rendering/style/RenderStyle.h"
-
-namespace blink {
-
-void RenderObjectChildList::destroyLeftoverChildren()
-{
-    while (firstChild()) {
-        // List markers are owned by their enclosing list and so don't get destroyed by this container.
-        if (firstChild()->isListMarker()) {
-            firstChild()->remove();
-            continue;
-        }
-
-        // Destroy any anonymous children remaining in the render tree, as well as implicit (shadow) DOM elements like those used in the engine-based text fields.
-        if (firstChild()->node())
-            firstChild()->node()->setRenderer(0);
-        firstChild()->destroy();
-    }
-}
-
-RenderObject* RenderObjectChildList::removeChildNode(RenderObject* owner, RenderObject* oldChild, bool notifyRenderer)
-{
-    ASSERT(oldChild->parent() == owner);
-    ASSERT(this == owner->virtualChildren());
-
-    if (oldChild->isFloatingOrOutOfFlowPositioned())
-        toRenderBox(oldChild)->removeFloatingOrPositionedChildFromBlockLists();
-
-    {
-        // FIXME: We should not be allowing paint invalidation during layout. crbug.com/336250
-        AllowPaintInvalidationScope scoper(owner->frameView());
-
-        // So that we'll get the appropriate dirty bit set (either that a normal flow child got yanked or
-        // that a positioned child got yanked). We also issue paint invalidations, so that the area exposed when the child
-        // disappears gets paint invalidated properly.
-        if (!owner->documentBeingDestroyed() && notifyRenderer && oldChild->everHadLayout()) {
-            oldChild->setNeedsLayoutAndPrefWidthsRecalc();
-            invalidatePaintOnRemoval(*oldChild);
-        }
-    }
-
-    // If we have a line box wrapper, delete it.
-    if (oldChild->isBox())
-        toRenderBox(oldChild)->deleteLineBoxWrapper();
-
-    // If oldChild is the start or end of the selection, then clear the selection to
-    // avoid problems of invalid pointers.
-    // FIXME: The FrameSelection should be responsible for this when it
-    // is notified of DOM mutations.
-    if (!owner->documentBeingDestroyed() && oldChild->isSelectionBorder())
-        owner->view()->clearSelection();
-
-    if (!owner->documentBeingDestroyed() && notifyRenderer)
-        oldChild->willBeRemovedFromTree();
-
-    // WARNING: There should be no code running between willBeRemovedFromTree and the actual removal below.
-    // This is needed to avoid race conditions where willBeRemovedFromTree would dirty the tree's structure
-    // and the code running here would force an untimely rebuilding, leaving |oldChild| dangling.
-
-    if (oldChild->previousSibling())
-        oldChild->previousSibling()->setNextSibling(oldChild->nextSibling());
-    if (oldChild->nextSibling())
-        oldChild->nextSibling()->setPreviousSibling(oldChild->previousSibling());
-
-    if (firstChild() == oldChild)
-        setFirstChild(oldChild->nextSibling());
-    if (lastChild() == oldChild)
-        setLastChild(oldChild->previousSibling());
-
-    oldChild->setPreviousSibling(0);
-    oldChild->setNextSibling(0);
-    oldChild->setParent(0);
-
-    // rendererRemovedFromTree walks the whole subtree. We can improve performance
-    // by skipping this step when destroying the entire tree.
-    if (!owner->documentBeingDestroyed())
-        LayoutCounter::rendererRemovedFromTree(oldChild);
-
-    if (AXObjectCache* cache = owner->document().existingAXObjectCache())
-        cache->childrenChanged(owner);
-
-    return oldChild;
-}
-
-void RenderObjectChildList::insertChildNode(RenderObject* owner, RenderObject* newChild, RenderObject* beforeChild, bool notifyRenderer)
-{
-    ASSERT(!newChild->parent());
-    ASSERT(this == owner->virtualChildren());
-    ASSERT(!owner->isRenderBlockFlow() || (!newChild->isTableSection() && !newChild->isTableRow() && !newChild->isTableCell()));
-
-    while (beforeChild && beforeChild->parent() && beforeChild->parent() != owner)
-        beforeChild = beforeChild->parent();
-
-    // This should never happen, but if it does prevent render tree corruption
-    // where child->parent() ends up being owner but child->nextSibling()->parent()
-    // is not owner.
-    if (beforeChild && beforeChild->parent() != owner) {
-        ASSERT_NOT_REACHED();
-        return;
-    }
-
-    newChild->setParent(owner);
-
-    if (firstChild() == beforeChild)
-        setFirstChild(newChild);
-
-    if (beforeChild) {
-        RenderObject* previousSibling = beforeChild->previousSibling();
-        if (previousSibling)
-            previousSibling->setNextSibling(newChild);
-        newChild->setPreviousSibling(previousSibling);
-        newChild->setNextSibling(beforeChild);
-        beforeChild->setPreviousSibling(newChild);
-    } else {
-        if (lastChild())
-            lastChild()->setNextSibling(newChild);
-        newChild->setPreviousSibling(lastChild());
-        setLastChild(newChild);
-    }
-
-    if (!owner->documentBeingDestroyed() && notifyRenderer)
-        newChild->insertedIntoTree();
-
-    if (!owner->documentBeingDestroyed()) {
-        LayoutCounter::rendererSubtreeAttached(newChild);
-    }
-
-    newChild->setNeedsLayoutAndPrefWidthsRecalc();
-    newChild->setShouldDoFullPaintInvalidation(PaintInvalidationRendererInsertion);
-    if (!owner->normalChildNeedsLayout())
-        owner->setChildNeedsLayout(); // We may supply the static position for an absolute positioned child.
-
-    if (AXObjectCache* cache = owner->document().axObjectCache())
-        cache->childrenChanged(owner);
-}
-
-void RenderObjectChildList::invalidatePaintOnRemoval(const RenderObject& oldChild)
-{
-    if (!oldChild.isRooted())
-        return;
-    if (oldChild.isBody()) {
-        oldChild.view()->setShouldDoFullPaintInvalidation();
-        return;
-    }
-    DisableCompositingQueryAsserts disabler;
-    oldChild.invalidatePaintUsingContainer(oldChild.containerForPaintInvalidation(), oldChild.previousPaintInvalidationRect(), PaintInvalidationRendererRemoval);
-}
-
-} // namespace blink