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/*
* Copyright (C) 2023 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.
*/
#pragma once
#include "Document.h"
#include "Element.h"
#include "ExceptionOr.h"
#include "JSValueInWrappedObject.h"
#include "ViewTransitionUpdateCallback.h"
#include <wtf/CheckedRef.h>
#include <wtf/Ref.h>
#include <wtf/text/AtomString.h>
namespace WebCore {
class DOMPromise;
class DeferredPromise;
enum class ViewTransitionPhase : uint8_t {
PendingCapture,
CapturingOldState, // Not part of the spec.
UpdateCallbackCalled,
Animating,
Done
};
struct CapturedElement {
WTF_MAKE_FAST_ALLOCATED;
public:
// FIXME: Add the following:
// old image (2d bitmap)
// old width / height
// old transform
// old writing mode
// old direction
// old text-orientation
// old mix-blend-mode
WeakPtr<Element, WeakPtrImplWithEventTargetData> newElement;
// FIXME: Also handle these:
// group keyframes
// group animation name rule
// group styles rule
// image pair isolation rule
// image animation name rule
};
struct OrderedNamedElementsMap {
public:
bool contains(const AtomString& key) const
{
return m_keys.contains(key);
}
void add(const AtomString& key, CapturedElement& value)
{
m_keys.add(key);
m_map.set(key, makeUniqueRef<CapturedElement>(value));
}
void remove(const AtomString& key)
{
m_map.remove(key);
m_keys.remove(key);
}
auto& keys() const
{
return m_keys;
}
bool isEmpty() const
{
return m_keys.isEmpty();
}
CapturedElement* find(const AtomString& key)
{
if (auto it = m_map.find(key); it != m_map.end())
return &it->value;
return nullptr;
}
private:
ListHashSet<AtomString> m_keys;
HashMap<AtomString, UniqueRef<CapturedElement>> m_map;
};
class ViewTransition : public RefCounted<ViewTransition>, public CanMakeWeakPtr<ViewTransition> {
public:
static Ref<ViewTransition> create(Document&, RefPtr<ViewTransitionUpdateCallback>&&);
~ViewTransition();
void skipTransition();
void skipViewTransition(ExceptionOr<JSC::JSValue>&&);
void callUpdateCallback();
void setupViewTransition();
ExceptionOr<void> captureOldState();
ExceptionOr<void> captureNewState();
void setupTransitionPseudoElements();
void activateViewTransition();
void handleTransitionFrame();
void clearViewTransition();
DOMPromise& ready();
DOMPromise& updateCallbackDone();
DOMPromise& finished();
ViewTransitionPhase phase() const { return m_phase; }
const OrderedNamedElementsMap& namedElements() const { return m_namedElements; };
RefPtr<Document> protectedDocument() const { return m_document.get(); }
private:
ViewTransition(Document&, RefPtr<ViewTransitionUpdateCallback>&&);
WeakPtr<Document, WeakPtrImplWithEventTargetData> m_document;
OrderedNamedElementsMap m_namedElements;
ViewTransitionPhase m_phase { ViewTransitionPhase::PendingCapture };
RefPtr<ViewTransitionUpdateCallback> m_updateCallback;
using PromiseAndWrapper = std::pair<Ref<DOMPromise>, Ref<DeferredPromise>>;
PromiseAndWrapper m_ready;
PromiseAndWrapper m_updateCallbackDone;
PromiseAndWrapper m_finished;
FloatSize m_initialSnapshotContainingBlockSize;
};
}
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