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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/html/HTMLSlotElement.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/html/HTMLSlotElement.cpp')
-rw-r--r-- | Source/WebCore/html/HTMLSlotElement.cpp | 102 |
1 files changed, 102 insertions, 0 deletions
diff --git a/Source/WebCore/html/HTMLSlotElement.cpp b/Source/WebCore/html/HTMLSlotElement.cpp new file mode 100644 index 000000000..73cc9612d --- /dev/null +++ b/Source/WebCore/html/HTMLSlotElement.cpp @@ -0,0 +1,102 @@ +/* + * Copyright (C) 2015 Apple Inc. 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 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 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 "HTMLSlotElement.h" + +#if ENABLE(SHADOW_DOM) || ENABLE(DETAILS_ELEMENT) + +#include "ElementChildIterator.h" +#include "HTMLNames.h" +#include "ShadowRoot.h" + +namespace WebCore { + +using namespace HTMLNames; + +Ref<HTMLSlotElement> HTMLSlotElement::create(const QualifiedName& tagName, Document& document) +{ + return adoptRef(*new HTMLSlotElement(tagName, document)); +} + +HTMLSlotElement::HTMLSlotElement(const QualifiedName& tagName, Document& document) + : HTMLElement(tagName, document) +{ + ASSERT(hasTagName(slotTag)); +} + +HTMLSlotElement::InsertionNotificationRequest HTMLSlotElement::insertedInto(ContainerNode& insertionPoint) +{ + auto insertionResult = HTMLElement::insertedInto(insertionPoint); + ASSERT_UNUSED(insertionResult, insertionResult == InsertionDone); + + // This function could be called when this element's shadow root's host or its ancestor is inserted. + // This element is new to the shadow tree (and its tree scope) only if the parent into which this element + // or its ancestor is inserted belongs to the same tree scope as this element's. + if (insertionPoint.isInShadowTree() && isInShadowTree() && &insertionPoint.treeScope() == &treeScope()) { + if (auto shadowRoot = containingShadowRoot()) + shadowRoot->addSlotElementByName(fastGetAttribute(nameAttr), *this); + } + + return InsertionDone; +} + +void HTMLSlotElement::removedFrom(ContainerNode& insertionPoint) +{ + // ContainerNode::removeBetween always sets the removed chid's tree scope to Document's but InShadowRoot flag is unset in Node::removedFrom. + // So if InShadowRoot flag is set but this element's tree scope is Document's, this element has just been removed from a shadow root. + if (insertionPoint.isInShadowTree() && isInShadowTree() && &treeScope() == &document()) { + auto* oldShadowRoot = insertionPoint.containingShadowRoot(); + ASSERT(oldShadowRoot); + oldShadowRoot->removeSlotElementByName(fastGetAttribute(nameAttr), *this); + } + + HTMLElement::removedFrom(insertionPoint); +} + +void HTMLSlotElement::attributeChanged(const QualifiedName& name, const AtomicString& oldValue, const AtomicString& newValue, AttributeModificationReason reason) +{ + HTMLElement::attributeChanged(name, oldValue, newValue, reason); + + if (isInShadowTree() && name == nameAttr) { + if (auto* shadowRoot = containingShadowRoot()) { + shadowRoot->removeSlotElementByName(oldValue, *this); + shadowRoot->addSlotElementByName(newValue, *this); + } + } +} + +const Vector<Node*>* HTMLSlotElement::assignedNodes() const +{ + auto* shadowRoot = containingShadowRoot(); + if (!shadowRoot) + return nullptr; + + return shadowRoot->assignedNodesForSlot(*this); +} + +} + +#endif |