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 | #include "config.h" |
27 | #include "PerformanceObserver.h" |
28 | |
29 | #include "DOMWindow.h" |
30 | #include "Document.h" |
31 | #include "InspectorInstrumentation.h" |
32 | #include "Performance.h" |
33 | #include "PerformanceObserverEntryList.h" |
34 | #include "WorkerGlobalScope.h" |
35 | |
36 | namespace WebCore { |
37 | |
38 | PerformanceObserver::PerformanceObserver(ScriptExecutionContext& scriptExecutionContext, Ref<PerformanceObserverCallback>&& callback) |
39 | : m_callback(WTFMove(callback)) |
40 | { |
41 | if (is<Document>(scriptExecutionContext)) { |
42 | auto& document = downcast<Document>(scriptExecutionContext); |
43 | if (DOMWindow* window = document.domWindow()) |
44 | m_performance = &window->performance(); |
45 | } else if (is<WorkerGlobalScope>(scriptExecutionContext)) { |
46 | auto& workerGlobalScope = downcast<WorkerGlobalScope>(scriptExecutionContext); |
47 | m_performance = &workerGlobalScope.performance(); |
48 | } else |
49 | ASSERT_NOT_REACHED(); |
50 | } |
51 | |
52 | void PerformanceObserver::disassociate() |
53 | { |
54 | m_performance = nullptr; |
55 | m_registered = false; |
56 | } |
57 | |
58 | ExceptionOr<void> PerformanceObserver::observe(Init&& init) |
59 | { |
60 | if (!m_performance) |
61 | return Exception { TypeError }; |
62 | |
63 | if (init.entryTypes.isEmpty()) |
64 | return Exception { TypeError, "entryTypes cannot be an empty list"_s }; |
65 | |
66 | OptionSet<PerformanceEntry::Type> filter; |
67 | for (const String& entryType : init.entryTypes) { |
68 | if (auto type = PerformanceEntry::parseEntryTypeString(entryType)) |
69 | filter.add(*type); |
70 | } |
71 | |
72 | if (filter.isEmpty()) |
73 | return Exception { TypeError, "entryTypes contained only unsupported types"_s }; |
74 | |
75 | m_typeFilter = filter; |
76 | |
77 | if (!m_registered) { |
78 | m_performance->registerPerformanceObserver(*this); |
79 | m_registered = true; |
80 | } |
81 | |
82 | return { }; |
83 | } |
84 | |
85 | void PerformanceObserver::disconnect() |
86 | { |
87 | if (m_performance) |
88 | m_performance->unregisterPerformanceObserver(*this); |
89 | |
90 | m_registered = false; |
91 | m_entriesToDeliver.clear(); |
92 | } |
93 | |
94 | void PerformanceObserver::queueEntry(PerformanceEntry& entry) |
95 | { |
96 | m_entriesToDeliver.append(&entry); |
97 | } |
98 | |
99 | void PerformanceObserver::deliver() |
100 | { |
101 | if (m_entriesToDeliver.isEmpty()) |
102 | return; |
103 | |
104 | auto* context = m_callback->scriptExecutionContext(); |
105 | if (!context) |
106 | return; |
107 | |
108 | Vector<RefPtr<PerformanceEntry>> entries = WTFMove(m_entriesToDeliver); |
109 | auto list = PerformanceObserverEntryList::create(WTFMove(entries)); |
110 | |
111 | InspectorInstrumentationCookie cookie = InspectorInstrumentation::willFireObserverCallback(*context, "PerformanceObserver"_s ); |
112 | m_callback->handleEvent(list, *this); |
113 | InspectorInstrumentation::didFireObserverCallback(cookie); |
114 | } |
115 | |
116 | Vector<String> PerformanceObserver::supportedEntryTypes() |
117 | { |
118 | return { |
119 | // FIXME: <https://webkit.org/b/184363> Add support for Navigation Timing Level 2 |
120 | // "navigation"_s, |
121 | "mark"_s , |
122 | "measure"_s , |
123 | "resource"_s |
124 | }; |
125 | } |
126 | |
127 | } // namespace WebCore |
128 | |