1 | /* |
2 | * Copyright (C) 2017 Apple Inc. All rights reserved. |
3 | * |
4 | * Redistribution and use in source and binary forms, with or without |
5 | * modification, are permitted provided that the following conditions |
6 | * are met: |
7 | * 1. Redistributions of source code must retain the above copyright |
8 | * notice, this list of conditions and the following disclaimer. |
9 | * 2. Redistributions in binary form must reproduce the above copyright |
10 | * notice, this list of conditions and the following disclaimer in the |
11 | * documentation and/or other materials provided with the distribution. |
12 | * |
13 | * THIS SOFTWARE IS PROVIDED BY APPLE INC. AND ITS CONTRIBUTORS ``AS IS'' |
14 | * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, |
15 | * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR |
16 | * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR ITS CONTRIBUTORS |
17 | * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR |
18 | * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF |
19 | * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS |
20 | * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN |
21 | * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) |
22 | * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF |
23 | * THE POSSIBILITY OF SUCH DAMAGE. |
24 | */ |
25 | |
26 | #pragma once |
27 | |
28 | #include "ExceptionOr.h" |
29 | #include "PerformanceEntry.h" |
30 | #include "PerformanceObserverCallback.h" |
31 | #include <wtf/OptionSet.h> |
32 | #include <wtf/RefCounted.h> |
33 | #include <wtf/Vector.h> |
34 | #include <wtf/text/WTFString.h> |
35 | |
36 | namespace WebCore { |
37 | |
38 | class Performance; |
39 | class ScriptExecutionContext; |
40 | |
41 | class PerformanceObserver : public RefCounted<PerformanceObserver> { |
42 | public: |
43 | struct Init { |
44 | Vector<String> entryTypes; |
45 | }; |
46 | |
47 | static Ref<PerformanceObserver> create(ScriptExecutionContext& context, Ref<PerformanceObserverCallback>&& callback) |
48 | { |
49 | return adoptRef(*new PerformanceObserver(context, WTFMove(callback))); |
50 | } |
51 | |
52 | static Vector<String> supportedEntryTypes(); |
53 | |
54 | void disassociate(); |
55 | |
56 | ExceptionOr<void> observe(Init&&); |
57 | void disconnect(); |
58 | |
59 | OptionSet<PerformanceEntry::Type> typeFilter() const { return m_typeFilter; } |
60 | |
61 | void queueEntry(PerformanceEntry&); |
62 | void deliver(); |
63 | |
64 | bool isRegistered() const { return m_registered; } |
65 | PerformanceObserverCallback& callback() { return m_callback.get(); } |
66 | |
67 | private: |
68 | PerformanceObserver(ScriptExecutionContext&, Ref<PerformanceObserverCallback>&&); |
69 | |
70 | RefPtr<Performance> m_performance; |
71 | Vector<RefPtr<PerformanceEntry>> m_entriesToDeliver; |
72 | Ref<PerformanceObserverCallback> m_callback; |
73 | OptionSet<PerformanceEntry::Type> m_typeFilter; |
74 | bool m_registered { false }; |
75 | }; |
76 | |
77 | } // namespace WebCore |
78 | |