104 lines
3.9 KiB
C++
104 lines
3.9 KiB
C++
/*
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* Copyright (C) 2014 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. AND ITS CONTRIBUTORS ``AS IS''
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* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
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* THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR ITS CONTRIBUTORS
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* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
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* THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#include "config.h"
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#include "UserMessageHandlersNamespace.h"
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#if ENABLE(USER_MESSAGE_HANDLERS)
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#include "DOMWrapperWorld.h"
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#include "Frame.h"
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#include "Page.h"
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#include "UserContentController.h"
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#include "UserMessageHandler.h"
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namespace WebCore {
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UserMessageHandlersNamespace::UserMessageHandlersNamespace(Frame& frame, UserContentProvider& userContentProvider)
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: FrameDestructionObserver(&frame)
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, m_userContentProvider(userContentProvider)
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{
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m_userContentProvider->registerForUserMessageHandlerInvalidation(*this);
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}
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UserMessageHandlersNamespace::~UserMessageHandlersNamespace()
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{
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m_userContentProvider->unregisterForUserMessageHandlerInvalidation(*this);
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}
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void UserMessageHandlersNamespace::didInvalidate(UserContentProvider& provider)
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{
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auto oldMap = WTFMove(m_messageHandlers);
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provider.forEachUserMessageHandler([&](const UserMessageHandlerDescriptor& descriptor) {
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auto userMessageHandler = oldMap.take(std::make_pair(descriptor.name(), const_cast<DOMWrapperWorld*>(&descriptor.world())));
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if (userMessageHandler) {
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m_messageHandlers.add(std::make_pair(descriptor.name(), const_cast<DOMWrapperWorld*>(&descriptor.world())), userMessageHandler);
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return;
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}
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});
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for (auto& userMessageHandler : oldMap.values())
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userMessageHandler->invalidateDescriptor();
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}
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Vector<AtomString> UserMessageHandlersNamespace::supportedPropertyNames() const
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{
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// FIXME: Consider adding support for iterating the registered UserMessageHandlers. This would
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// require adding support for passing the DOMWrapperWorld to supportedPropertyNames.
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return { };
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}
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UserMessageHandler* UserMessageHandlersNamespace::namedItem(DOMWrapperWorld& world, const AtomString& name)
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{
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Frame* frame = this->frame();
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if (!frame)
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return nullptr;
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Page* page = frame->page();
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if (!page)
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return nullptr;
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UserMessageHandler* handler = m_messageHandlers.get(std::pair<AtomString, RefPtr<DOMWrapperWorld>>(name, &world));
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if (handler)
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return handler;
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page->userContentProvider().forEachUserMessageHandler([&](const UserMessageHandlerDescriptor& descriptor) {
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if (descriptor.name() != name || &descriptor.world() != &world)
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return;
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ASSERT(!handler);
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auto addResult = m_messageHandlers.add(std::make_pair(descriptor.name(), const_cast<DOMWrapperWorld*>(&descriptor.world())), UserMessageHandler::create(*frame, const_cast<UserMessageHandlerDescriptor&>(descriptor)));
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handler = addResult.iterator->value.get();
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});
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return handler;
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}
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} // namespace WebCore
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#endif // ENABLE(USER_MESSAGE_HANDLERS)
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