/* * Copyright (C) 2018-2019 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. */ #pragma once #include "SVGList.h" namespace WebCore { template<typename PropertyType> class SVGPropertyList : public SVGList<Ref<PropertyType>>, public SVGPropertyOwner { public: using BaseList = SVGList<Ref<PropertyType>>; using BaseList::isEmpty; using BaseList::size; using BaseList::append; // Visual Studio doesn't seem to see these private constructors from subclasses. // FIXME: See what it takes to remove this hack. #if !COMPILER(MSVC) protected: #endif using SVGPropertyOwner::SVGPropertyOwner; using BaseList::m_items; using BaseList::m_access; using BaseList::m_owner; SVGPropertyList(SVGPropertyOwner* owner = nullptr, SVGPropertyAccess access = SVGPropertyAccess::ReadWrite) : BaseList(owner, access) { } ~SVGPropertyList() { // Detach the items from the list before it is deleted. detachItems(); } void detachItems() override { for (auto& item : m_items) item->detach(); } SVGPropertyOwner* owner() const override { return m_owner; } void commitPropertyChange(SVGProperty*) override { if (owner()) owner()->commitPropertyChange(this); } Ref<PropertyType> at(unsigned index) const override { ASSERT(index < size()); return m_items.at(index).copyRef(); } Ref<PropertyType> insert(unsigned index, Ref<PropertyType>&& newItem) override { ASSERT(index <= size()); // Spec: if newItem is not a detached object, then set newItem to be // a clone object of newItem. if (newItem->isAttached()) newItem = newItem->clone(); // Spec: Attach newItem to the list object. newItem->attach(this, m_access); m_items.insert(index, WTFMove(newItem)); return at(index); } Ref<PropertyType> replace(unsigned index, Ref<PropertyType>&& newItem) override { ASSERT(index < size()); Ref<PropertyType>& item = m_items[index]; // Spec: Detach item. item->detach(); // Spec: if newItem is not a detached object, then set newItem to be // a clone object of newItem. if (newItem->isAttached()) item = newItem->clone(); else item = WTFMove(newItem); // Spec: Attach newItem to the list object. item->attach(this, m_access); return at(index); } Ref<PropertyType> remove(unsigned index) override { ASSERT(index < size()); Ref<PropertyType> item = at(index); // Spec: Detach item. item->detach(); m_items.remove(index); return item; } Ref<PropertyType> append(Ref<PropertyType>&& newItem) override { // Spec: if newItem is not a detached object, then set newItem to be // a clone object of newItem. if (newItem->isAttached()) newItem = newItem->clone(); // Spec: Attach newItem to the list object. newItem->attach(this, m_access); m_items.append(WTFMove(newItem)); return at(size() - 1); } }; }