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1 /* | 1 /* |
2 * Copyright (C) 2008, 2009, 2011 Google Inc. All rights reserved. | 2 * Copyright (C) 2008, 2009, 2011 Google Inc. All rights reserved. |
3 * | 3 * |
4 * Redistribution and use in source and binary forms, with or without | 4 * Redistribution and use in source and binary forms, with or without |
5 * modification, are permitted provided that the following conditions are | 5 * modification, are permitted provided that the following conditions are |
6 * met: | 6 * met: |
7 * | 7 * |
8 * * Redistributions of source code must retain the above copyright | 8 * * Redistributions of source code must retain the above copyright |
9 * notice, this list of conditions and the following disclaimer. | 9 * notice, this list of conditions and the following disclaimer. |
10 * * Redistributions in binary form must reproduce the above | 10 * * Redistributions in binary form must reproduce the above |
(...skipping 15 matching lines...) Expand all Loading... |
26 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT | 26 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
27 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE | 27 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE |
28 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. | 28 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
29 */ | 29 */ |
30 | 30 |
31 #include "bindings/core/v8/RemoteWindowProxy.h" | 31 #include "bindings/core/v8/RemoteWindowProxy.h" |
32 | 32 |
33 #include <utility> | 33 #include <utility> |
34 | 34 |
35 #include "bindings/core/v8/DOMWrapperWorld.h" | 35 #include "bindings/core/v8/DOMWrapperWorld.h" |
36 #include "bindings/core/v8/V8GCForContextDispose.h" | 36 #include "bindings/core/v8/V8DOMWrapper.h" |
37 #include "bindings/core/v8/V8Window.h" | 37 #include "bindings/core/v8/V8Window.h" |
38 #include "platform/Histogram.h" | 38 #include "platform/Histogram.h" |
39 #include "platform/RuntimeEnabledFeatures.h" | |
40 #include "platform/ScriptForbiddenScope.h" | |
41 #include "platform/heap/Handle.h" | |
42 #include "platform/instrumentation/tracing/TraceEvent.h" | 39 #include "platform/instrumentation/tracing/TraceEvent.h" |
43 #include "v8/include/v8.h" | 40 #include "v8/include/v8.h" |
44 #include "wtf/Assertions.h" | 41 #include "wtf/Assertions.h" |
45 | 42 |
46 namespace blink { | 43 namespace blink { |
47 | 44 |
48 RemoteWindowProxy::RemoteWindowProxy(v8::Isolate* isolate, | 45 RemoteWindowProxy::RemoteWindowProxy(v8::Isolate* isolate, |
49 RemoteFrame& frame, | 46 RemoteFrame& frame, |
50 RefPtr<DOMWrapperWorld> world) | 47 RefPtr<DOMWrapperWorld> world) |
51 : WindowProxy(isolate, frame, std::move(world)) {} | 48 : WindowProxy(isolate, frame, std::move(world)) {} |
52 | 49 |
53 void RemoteWindowProxy::disposeContext(GlobalDetachmentBehavior behavior) { | 50 void RemoteWindowProxy::disposeContext(GlobalDetachmentBehavior behavior) { |
54 if (m_lifecycle != Lifecycle::ContextInitialized) | 51 if (m_lifecycle != Lifecycle::ContextInitialized) |
55 return; | 52 return; |
56 | 53 |
57 if (behavior == DetachGlobal) { | 54 if (behavior == DetachGlobal && !m_globalProxy.isEmpty()) { |
58 v8::Local<v8::Context> context = m_scriptState->context(); | 55 m_globalProxy.get().SetWrapperClassId(0); |
59 // Clean up state on the global proxy, which will be reused. | 56 V8DOMWrapper::clearNativeInfo(isolate(), m_globalProxy.newLocal(isolate())); |
60 if (!m_globalProxy.isEmpty()) { | |
61 // TODO(yukishiino): This DCHECK failed on Canary (M57) and Dev (M56). | |
62 // We need to figure out why m_globalProxy != context->Global(). | |
63 DCHECK(m_globalProxy == context->Global()); | |
64 DCHECK_EQ(toScriptWrappable(context->Global()), | |
65 toScriptWrappable( | |
66 context->Global()->GetPrototype().As<v8::Object>())); | |
67 m_globalProxy.get().SetWrapperClassId(0); | |
68 } | |
69 V8DOMWrapper::clearNativeInfo(isolate(), context->Global()); | |
70 m_scriptState->detachGlobalObject(); | |
71 | |
72 #if DCHECK_IS_ON() | 57 #if DCHECK_IS_ON() |
73 didDetachGlobalProxy(); | 58 didDetachGlobalProxy(); |
74 #endif | 59 #endif |
75 } | 60 } |
76 | 61 |
77 m_scriptState->disposePerContextData(); | 62 DCHECK_EQ(Lifecycle::ContextInitialized, m_lifecycle); |
78 | |
79 // It's likely that disposing the context has created a lot of | |
80 // garbage. Notify V8 about this so it'll have a chance of cleaning | |
81 // it up when idle. | |
82 V8GCForContextDispose::instance().notifyContextDisposed( | |
83 frame()->isMainFrame()); | |
84 | |
85 DCHECK(m_lifecycle == Lifecycle::ContextInitialized); | |
86 m_lifecycle = Lifecycle::ContextDetached; | 63 m_lifecycle = Lifecycle::ContextDetached; |
87 } | 64 } |
88 | 65 |
89 void RemoteWindowProxy::initialize() { | 66 void RemoteWindowProxy::initialize() { |
90 TRACE_EVENT1("v8", "RemoteWindowProxy::initialize", "isMainWindow", | 67 TRACE_EVENT1("v8", "RemoteWindowProxy::initialize", "isMainWindow", |
91 frame()->isMainFrame()); | 68 frame()->isMainFrame()); |
92 SCOPED_BLINK_UMA_HISTOGRAM_TIMER( | 69 SCOPED_BLINK_UMA_HISTOGRAM_TIMER( |
93 frame()->isMainFrame() ? "Blink.Binding.InitializeMainWindowProxy" | 70 frame()->isMainFrame() ? "Blink.Binding.InitializeMainWindowProxy" |
94 : "Blink.Binding.InitializeNonMainWindowProxy"); | 71 : "Blink.Binding.InitializeNonMainWindowProxy"); |
95 | 72 |
96 ScriptForbiddenScope::AllowUserAgentScript allowScript; | |
97 | |
98 v8::HandleScope handleScope(isolate()); | 73 v8::HandleScope handleScope(isolate()); |
99 | 74 |
100 createContext(); | 75 createContext(); |
101 | 76 |
102 ScriptState::Scope scope(m_scriptState.get()); | |
103 v8::Local<v8::Context> context = m_scriptState->context(); | |
104 if (m_globalProxy.isEmpty()) { | |
105 m_globalProxy.set(isolate(), context->Global()); | |
106 CHECK(!m_globalProxy.isEmpty()); | |
107 } | |
108 | |
109 setupWindowPrototypeChain(); | 77 setupWindowPrototypeChain(); |
110 | |
111 // Remote frames always require a full canAccess() check. | |
112 context->UseDefaultSecurityToken(); | |
113 } | 78 } |
114 | 79 |
115 void RemoteWindowProxy::setupWindowPrototypeChain() { | 80 void RemoteWindowProxy::setupWindowPrototypeChain() { |
116 // Associate the window wrapper object and its prototype chain with the | |
117 // corresponding native DOMWindow object. | |
118 DOMWindow* window = frame()->domWindow(); | 81 DOMWindow* window = frame()->domWindow(); |
119 const WrapperTypeInfo* wrapperTypeInfo = window->wrapperTypeInfo(); | 82 const WrapperTypeInfo* wrapperTypeInfo = window->wrapperTypeInfo(); |
120 v8::Local<v8::Context> context = m_scriptState->context(); | |
121 | |
122 // The global proxy object. Note this is not the global object. | 83 // The global proxy object. Note this is not the global object. |
123 v8::Local<v8::Object> globalProxy = context->Global(); | 84 v8::Local<v8::Object> globalProxy = m_globalProxy.newLocal(isolate()); |
124 CHECK(m_globalProxy == globalProxy); | |
125 V8DOMWrapper::setNativeInfo(isolate(), globalProxy, wrapperTypeInfo, window); | 85 V8DOMWrapper::setNativeInfo(isolate(), globalProxy, wrapperTypeInfo, window); |
126 // Mark the handle to be traced by Oilpan, since the global proxy has a | 86 // Mark the handle to be traced by Oilpan, since the global proxy has a |
127 // reference to the DOMWindow. | 87 // reference to the DOMWindow. |
128 m_globalProxy.get().SetWrapperClassId(wrapperTypeInfo->wrapperClassId); | 88 m_globalProxy.get().SetWrapperClassId(wrapperTypeInfo->wrapperClassId); |
129 | 89 |
130 #if DCHECK_IS_ON() | 90 #if DCHECK_IS_ON() |
131 didAttachGlobalProxy(); | 91 didAttachGlobalProxy(); |
132 #endif | 92 #endif |
133 | 93 |
134 // The global object, aka window wrapper object. | 94 // The global object, aka window wrapper object. |
135 v8::Local<v8::Object> windowWrapper = | 95 v8::Local<v8::Object> windowWrapper = |
136 globalProxy->GetPrototype().As<v8::Object>(); | 96 globalProxy->GetPrototype().As<v8::Object>(); |
137 V8DOMWrapper::setNativeInfo(isolate(), windowWrapper, wrapperTypeInfo, | 97 V8DOMWrapper::setNativeInfo(isolate(), windowWrapper, wrapperTypeInfo, |
138 window); | 98 window); |
139 | |
140 // The prototype object of Window interface. | |
141 v8::Local<v8::Object> windowPrototype = | |
142 windowWrapper->GetPrototype().As<v8::Object>(); | |
143 CHECK(!windowPrototype.IsEmpty()); | |
144 V8DOMWrapper::setNativeInfo(isolate(), windowPrototype, wrapperTypeInfo, | |
145 window); | |
146 | |
147 // The named properties object of Window interface. | |
148 v8::Local<v8::Object> windowProperties = | |
149 windowPrototype->GetPrototype().As<v8::Object>(); | |
150 CHECK(!windowProperties.IsEmpty()); | |
151 V8DOMWrapper::setNativeInfo(isolate(), windowProperties, wrapperTypeInfo, | |
152 window); | |
153 } | 99 } |
154 | 100 |
155 void RemoteWindowProxy::createContext() { | 101 void RemoteWindowProxy::createContext() { |
156 // Create a new v8::Context with the window object as the global object | 102 // Create a new v8::Context with the window object as the global object |
157 // (aka the inner global). Reuse the outer global proxy if it already exists. | 103 // (aka the inner global). Reuse the outer global proxy if it already exists. |
158 v8::Local<v8::ObjectTemplate> globalTemplate = | 104 v8::Local<v8::ObjectTemplate> globalTemplate = |
159 V8Window::domTemplate(isolate(), *m_world)->InstanceTemplate(); | 105 V8Window::domTemplate(isolate(), *m_world)->InstanceTemplate(); |
160 CHECK(!globalTemplate.IsEmpty()); | 106 CHECK(!globalTemplate.IsEmpty()); |
161 | 107 |
162 v8::Local<v8::Context> context; | 108 v8::Local<v8::Object> globalProxy = |
163 { | 109 v8::Context::NewRemoteContext(isolate(), globalTemplate, |
164 V8PerIsolateData::UseCounterDisabledScope useCounterDisabled( | 110 m_globalProxy.newLocal(isolate())) |
165 V8PerIsolateData::from(isolate())); | 111 .ToLocalChecked(); |
166 context = v8::Context::New(isolate(), nullptr, globalTemplate, | 112 if (m_globalProxy.isEmpty()) |
167 m_globalProxy.newLocal(isolate())); | 113 m_globalProxy.set(isolate(), globalProxy); |
168 } | 114 else |
169 CHECK(!context.IsEmpty()); | 115 DCHECK(m_globalProxy.get() == globalProxy); |
170 | 116 CHECK(!m_globalProxy.isEmpty()); |
171 m_scriptState = ScriptState::create(context, m_world); | |
172 | 117 |
173 // TODO(haraken): Currently we cannot enable the following DCHECK because | 118 // TODO(haraken): Currently we cannot enable the following DCHECK because |
174 // an already detached window proxy can be re-initialized. This is wrong. | 119 // an already detached window proxy can be re-initialized. This is wrong. |
175 // DCHECK(m_lifecycle == Lifecycle::ContextUninitialized); | 120 // DCHECK(m_lifecycle == Lifecycle::ContextUninitialized); |
176 m_lifecycle = Lifecycle::ContextInitialized; | 121 m_lifecycle = Lifecycle::ContextInitialized; |
177 DCHECK(m_scriptState->contextIsValid()); | |
178 } | 122 } |
179 | 123 |
180 } // namespace blink | 124 } // namespace blink |
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