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/*
* Copyright (C) 2021 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 "PermissionStatus.h"
#include "ClientOrigin.h"
#include "Document.h"
#include "DocumentInlines.h"
#include "EventNames.h"
#include "MainThreadPermissionObserver.h"
#include "PermissionController.h"
#include "PermissionState.h"
#include "Permissions.h"
#include "ScriptExecutionContext.h"
#include "SecurityOrigin.h"
#include "WorkerGlobalScope.h"
#include "WorkerLoaderProxy.h"
#include "WorkerThread.h"
#include <wtf/HashMap.h>
#include <wtf/MainThread.h>
#include <wtf/NeverDestroyed.h>
#include <wtf/TZoneMallocInlines.h>
namespace WebCore {
WTF_MAKE_TZONE_OR_ISO_ALLOCATED_IMPL(PermissionStatus);
static HashMap<MainThreadPermissionObserverIdentifier, std::unique_ptr<MainThreadPermissionObserver>>& allMainThreadPermissionObservers()
{
static MainThreadNeverDestroyed<HashMap<MainThreadPermissionObserverIdentifier, std::unique_ptr<MainThreadPermissionObserver>>> map;
return map;
}
Ref<PermissionStatus> PermissionStatus::create(ScriptExecutionContext& context, PermissionState state, PermissionDescriptor descriptor, PermissionQuerySource source, WeakPtr<Page>&& page)
{
auto status = adoptRef(*new PermissionStatus(context, state, descriptor, source, WTFMove(page)));
status->suspendIfNeeded();
return status;
}
PermissionStatus::PermissionStatus(ScriptExecutionContext& context, PermissionState state, PermissionDescriptor descriptor, PermissionQuerySource source, WeakPtr<Page>&& page)
: ActiveDOMObject(&context)
, m_state(state)
, m_descriptor(descriptor)
, m_mainThreadPermissionObserverIdentifier(MainThreadPermissionObserverIdentifier::generate())
{
RefPtr origin = context.securityOrigin();
auto originData = origin ? origin->data() : SecurityOriginData { };
ClientOrigin clientOrigin { context.topOrigin().data(), WTFMove(originData) };
ensureOnMainThread([weakThis = ThreadSafeWeakPtr { *this }, contextIdentifier = context.identifier(), state = m_state, descriptor = m_descriptor, source, page = WTFMove(page), origin = WTFMove(clientOrigin).isolatedCopy(), identifier = m_mainThreadPermissionObserverIdentifier]() mutable {
auto mainThreadPermissionObserver = makeUnique<MainThreadPermissionObserver>(WTFMove(weakThis), contextIdentifier, state, descriptor, source, WTFMove(page), WTFMove(origin));
allMainThreadPermissionObservers().add(identifier, WTFMove(mainThreadPermissionObserver));
});
}
PermissionStatus::~PermissionStatus()
{
callOnMainThread([identifier = m_mainThreadPermissionObserverIdentifier] {
allMainThreadPermissionObservers().remove(identifier);
});
}
void PermissionStatus::stateChanged(PermissionState newState)
{
if (m_state == newState)
return;
RefPtr context = scriptExecutionContext();
if (!context)
return;
RefPtr document = dynamicDowncast<Document>(context.get());
if (document && !document->isFullyActive())
return;
m_state = newState;
queueTaskToDispatchEvent(*this, TaskSource::Permission, Event::create(eventNames().changeEvent, Event::CanBubble::No, Event::IsCancelable::No));
}
bool PermissionStatus::virtualHasPendingActivity() const
{
if (!m_hasChangeEventListener)
return false;
if (auto* document = dynamicDowncast<Document>(scriptExecutionContext()))
return document->hasBrowsingContext();
return true;
}
void PermissionStatus::eventListenersDidChange()
{
m_hasChangeEventListener = hasEventListeners(eventNames().changeEvent);
}
} // namespace WebCore
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