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WebXRSystem.h
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WebXRSystem.h
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/*
* Copyright (C) 2020 Igalia S.L. 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
#if ENABLE(WEBXR)
#include "ActiveDOMObject.h"
#include "EventTarget.h"
#include "HTMLCanvasElement.h"
#include "JSDOMPromiseDeferred.h"
#include "WebGLContextAttributes.h"
#include "WebGLRenderingContextBase.h"
#include "XRReferenceSpaceType.h"
#include "XRSessionMode.h"
#include <wtf/HashSet.h>
#include <wtf/IsoMalloc.h>
#include <wtf/Optional.h>
#include <wtf/RefCounted.h>
#include <wtf/WeakHashSet.h>
#include <wtf/WeakPtr.h>
namespace JSC {
class JSGlobalObject;
}
namespace WebCore {
class DOMWindow;
class ScriptExecutionContext;
class WebXRSession;
struct XRSessionInit;
class WebXRSystem final : public RefCounted<WebXRSystem>, public EventTargetWithInlineData, public ActiveDOMObject, public CanMakeWeakPtr<WebXRSystem> {
WTF_MAKE_ISO_ALLOCATED(WebXRSystem);
public:
using IsSessionSupportedPromise = DOMPromiseDeferred<IDLBoolean>;
using RequestSessionPromise = DOMPromiseDeferred<IDLInterface<WebXRSession>>;
static Ref<WebXRSystem> create(ScriptExecutionContext&);
~WebXRSystem();
using RefCounted<WebXRSystem>::ref;
using RefCounted<WebXRSystem>::deref;
void isSessionSupported(XRSessionMode, IsSessionSupportedPromise&&);
void requestSession(Document&, XRSessionMode, const XRSessionInit&, RequestSessionPromise&&);
// This is also needed by WebGLRenderingContextBase::makeXRCompatible() and HTMLCanvasElement::createContextWebGL().
void ensureImmersiveXRDeviceIsSelected(CompletionHandler<void()>&&);
bool hasActiveImmersiveXRDevice() { return !!m_activeImmersiveDevice; }
void sessionEnded(WebXRSession&);
// For testing purpouses only.
WEBCORE_EXPORT void registerSimulatedXRDeviceForTesting(PlatformXR::Device&);
WEBCORE_EXPORT void unregisterSimulatedXRDeviceForTesting(PlatformXR::Device&);
protected:
// EventTarget
EventTargetInterface eventTargetInterface() const override { return WebXRSystemEventTargetInterfaceType; }
ScriptExecutionContext* scriptExecutionContext() const override { return ActiveDOMObject::scriptExecutionContext(); }
void refEventTarget() override { ref(); }
void derefEventTarget() override { deref(); }
// ActiveDOMObject
const char* activeDOMObjectName() const override;
void stop() override;
private:
WebXRSystem(ScriptExecutionContext&);
using FeaturesArray = PlatformXR::Device::ListOfEnabledFeatures;
using JSFeaturesArray = Vector<JSC::JSValue>;
void obtainCurrentDevice(XRSessionMode, const JSFeaturesArray& requiredFeatures, const JSFeaturesArray& optionalFeatures, CompletionHandler<void(PlatformXR::Device*)>&&);
bool immersiveSessionRequestIsAllowedForGlobalObject(DOMWindow&, Document&) const;
bool inlineSessionRequestIsAllowedForGlobalObject(DOMWindow&, Document&, const XRSessionInit&) const;
struct ResolvedRequestedFeatures;
Optional<ResolvedRequestedFeatures> resolveRequestedFeatures(XRSessionMode, const XRSessionInit&, PlatformXR::Device*, JSC::JSGlobalObject&) const;
bool isXRPermissionGranted(XRSessionMode, const XRSessionInit&, PlatformXR::Device*, JSC::JSGlobalObject&) const;
// https://immersive-web.github.io/webxr/#default-inline-xr-device
class DummyInlineDevice final : public PlatformXR::Device {
public:
DummyInlineDevice();
};
DummyInlineDevice m_defaultInlineDevice;
bool m_immersiveXRDevicesHaveBeenEnumerated { false };
uint m_testingDevices { 0 };
bool m_pendingImmersiveSession { false };
RefPtr<WebXRSession> m_activeImmersiveSession;
// We use a set here although the specs talk about a list of inline sessions
// https://immersive-web.github.io/webxr/#list-of-inline-sessions.
HashSet<Ref<WebXRSession>> m_inlineSessions;
WeakPtr<PlatformXR::Device> m_activeImmersiveDevice;
WeakHashSet<PlatformXR::Device> m_immersiveDevices;
WeakPtr<PlatformXR::Device> m_inlineXRDevice;
};
} // namespace WebCore
#endif // ENABLE(WEBXR)