1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
|
/*
* 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 "ContextDestructionObserver.h"
#include "EventTarget.h"
#include "TransformationMatrix.h"
#include "WebXRSession.h"
#include <wtf/RefCounted.h>
namespace WebCore {
class Document;
class ScriptExecutionContext;
class WebXRRigidTransform;
class WebXRSpace : public EventTarget, public ContextDestructionObserver {
WTF_MAKE_TZONE_OR_ISO_ALLOCATED(WebXRSpace);
public:
virtual ~WebXRSpace();
virtual WebXRSession* session() const = 0;
virtual std::optional<TransformationMatrix> nativeOrigin() const = 0;
std::optional<TransformationMatrix> effectiveOrigin() const;
virtual std::optional<bool> isPositionEmulated() const;
virtual bool isReferenceSpace() const { return false; }
virtual bool isBoundedReferenceSpace() const { return false; }
#if ENABLE(WEBXR_HANDS)
virtual bool isJointSpace() const { return false; }
#endif
protected:
WebXRSpace(Document&, Ref<WebXRRigidTransform>&&);
const WebXRRigidTransform& originOffset() const { return m_originOffset.get(); }
// EventTarget
ScriptExecutionContext* scriptExecutionContext() const final { return ContextDestructionObserver::scriptExecutionContext(); }
private:
// EventTarget
enum EventTargetInterfaceType eventTargetInterface() const final { return EventTargetInterfaceType::WebXRSpace; }
Ref<WebXRRigidTransform> m_originOffset;
};
// https://immersive-web.github.io/webxr/#xrsession-viewer-reference-space
// This is a helper class to implement the viewer space owned by a WebXRSession.
// It avoids a circular reference between the session and the reference space.
class WebXRViewerSpace : public RefCounted<WebXRViewerSpace>, public WebXRSpace {
WTF_MAKE_TZONE_OR_ISO_ALLOCATED(WebXRViewerSpace);
public:
static Ref< WebXRViewerSpace> create(Document& document, WebXRSession& session)
{
return adoptRef(*new WebXRViewerSpace(document, session));
}
virtual ~WebXRViewerSpace();
using RefCounted::ref;
using RefCounted::deref;
private:
WebXRViewerSpace(Document&, WebXRSession&);
WebXRSession* session() const final { return m_session.get(); }
std::optional<TransformationMatrix> nativeOrigin() const final;
void refEventTarget() final { ref(); }
void derefEventTarget() final { deref(); }
WeakPtr<WebXRSession> m_session;
};
} // namespace WebCore
#define SPECIALIZE_TYPE_TRAITS_WEBXRSPACE(ToValueTypeName, predicate) \
SPECIALIZE_TYPE_TRAITS_BEGIN(WebCore::ToValueTypeName) \
static bool isType(const WebCore::WebXRSpace& context) { return context.predicate; } \
SPECIALIZE_TYPE_TRAITS_END()
#endif // ENABLE(WEBXR)
|
