142 lines
4.4 KiB
C++
142 lines
4.4 KiB
C++
/*
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* Copyright (C) 2018-2019 Apple Inc. All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY APPLE INC. ``AS IS'' AND ANY
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* EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR
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* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
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* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
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* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
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* PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
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* OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#pragma once
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#include "SVGList.h"
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namespace WebCore {
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template<typename PropertyType>
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class SVGPropertyList : public SVGList<Ref<PropertyType>>, public SVGPropertyOwner {
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public:
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using BaseList = SVGList<Ref<PropertyType>>;
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using BaseList::isEmpty;
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using BaseList::size;
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using BaseList::append;
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// Visual Studio doesn't seem to see these private constructors from subclasses.
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// FIXME: See what it takes to remove this hack.
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#if !COMPILER(MSVC)
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protected:
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#endif
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using SVGPropertyOwner::SVGPropertyOwner;
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using BaseList::m_items;
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using BaseList::m_access;
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using BaseList::m_owner;
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SVGPropertyList(SVGPropertyOwner* owner = nullptr, SVGPropertyAccess access = SVGPropertyAccess::ReadWrite)
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: BaseList(owner, access)
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{
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}
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~SVGPropertyList()
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{
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// Detach the items from the list before it is deleted.
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detachItems();
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}
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void detachItems() override
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{
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for (auto& item : m_items)
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item->detach();
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}
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SVGPropertyOwner* owner() const override { return m_owner; }
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void commitPropertyChange(SVGProperty*) override
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{
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if (owner())
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owner()->commitPropertyChange(this);
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}
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Ref<PropertyType> at(unsigned index) const override
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{
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ASSERT(index < size());
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return m_items.at(index).copyRef();
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}
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Ref<PropertyType> insert(unsigned index, Ref<PropertyType>&& newItem) override
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{
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ASSERT(index <= size());
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// Spec: if newItem is not a detached object, then set newItem to be
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// a clone object of newItem.
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if (newItem->isAttached())
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newItem = newItem->clone();
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// Spec: Attach newItem to the list object.
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newItem->attach(this, m_access);
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m_items.insert(index, WTFMove(newItem));
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return at(index);
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}
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Ref<PropertyType> replace(unsigned index, Ref<PropertyType>&& newItem) override
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{
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ASSERT(index < size());
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Ref<PropertyType>& item = m_items[index];
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// Spec: Detach item.
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item->detach();
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// Spec: if newItem is not a detached object, then set newItem to be
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// a clone object of newItem.
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if (newItem->isAttached())
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item = newItem->clone();
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else
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item = WTFMove(newItem);
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// Spec: Attach newItem to the list object.
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item->attach(this, m_access);
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return at(index);
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}
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Ref<PropertyType> remove(unsigned index) override
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{
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ASSERT(index < size());
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Ref<PropertyType> item = at(index);
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// Spec: Detach item.
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item->detach();
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m_items.remove(index);
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return item;
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}
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Ref<PropertyType> append(Ref<PropertyType>&& newItem) override
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{
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// Spec: if newItem is not a detached object, then set newItem to be
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// a clone object of newItem.
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if (newItem->isAttached())
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newItem = newItem->clone();
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// Spec: Attach newItem to the list object.
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newItem->attach(this, m_access);
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m_items.append(WTFMove(newItem));
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return at(size() - 1);
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}
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};
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}
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