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/*
* Copyright (C) 2018 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. AND ITS CONTRIBUTORS ``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 ITS 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 "Frame.h"
#include "DocumentInlines.h"
#include "HTMLFrameOwnerElement.h"
#include "LocalFrame.h"
#include "NavigationScheduler.h"
#include "Page.h"
#include "RemoteFrame.h"
#include "WindowProxy.h"
namespace WebCore {
Frame::Frame(Page& page, FrameIdentifier frameID, FrameType frameType, HTMLFrameOwnerElement* ownerElement, Frame* parent)
: m_page(page)
, m_frameID(frameID)
, m_treeNode(*this, parent)
, m_windowProxy(WindowProxy::create(*this))
, m_ownerElement(ownerElement)
, m_mainFrame(parent ? page.mainFrame() : *this)
, m_settings(page.settings())
, m_frameType(frameType)
, m_navigationScheduler(makeUniqueRef<NavigationScheduler>(*this))
{
if (parent)
parent->tree().appendChild(*this);
if (ownerElement)
ownerElement->setContentFrame(*this);
}
Frame::~Frame()
{
m_windowProxy->detachFromFrame();
m_navigationScheduler->cancel();
}
std::optional<PageIdentifier> Frame::pageID() const
{
if (auto* page = this->page())
return page->identifier();
return std::nullopt;
}
bool Frame::isRootFrame() const
{
// A root frame is a local frame with a remote frame parent or no parent.
// It is the root of its local frame tree in this process but might have
// a parent in another process.
switch (m_frameType) {
case FrameType::Local:
if (auto* parent = tree().parent())
return is<RemoteFrame>(parent);
ASSERT(&m_mainFrame == this);
return true;
case FrameType::Remote:
break;
}
return false;
}
void Frame::resetWindowProxy()
{
ASSERT(m_windowProxy->frame() == this);
m_windowProxy->detachFromFrame();
m_windowProxy = WindowProxy::create(*this);
}
void Frame::detachFromPage()
{
m_page = nullptr;
}
void Frame::disconnectOwnerElement()
{
if (m_ownerElement) {
m_ownerElement->clearContentFrame();
m_ownerElement = nullptr;
}
// FIXME: This is a layering violation. Move this code so Frame doesn't do anything with its Document.
if (auto* document = is<LocalFrame>(*this) ? downcast<LocalFrame>(*this).document() : nullptr)
document->frameWasDisconnectedFromOwner();
}
void Frame::takeWindowProxyFrom(Frame& frame)
{
ASSERT(m_windowProxy->frame() == this);
m_windowProxy->detachFromFrame();
m_windowProxy = frame.windowProxy();
m_windowProxy->replaceFrame(*this);
}
} // namespace WebCore
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