OLD | NEW |
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/WindowProxy.h" | 31 #include "bindings/core/v8/WindowProxy.h" |
32 | 32 |
33 #include <utility> | 33 #include <utility> |
34 | 34 |
35 #include "bindings/core/v8/V8DOMWrapper.h" | 35 #include "bindings/core/v8/V8DOMWrapper.h" |
36 #include "bindings/core/v8/V8Window.h" | |
37 #include "core/frame/Frame.h" | 36 #include "core/frame/Frame.h" |
38 #include "v8/include/v8.h" | 37 #include "v8/include/v8.h" |
39 #include "wtf/Assertions.h" | 38 #include "wtf/Assertions.h" |
40 #include "wtf/debug/Alias.h" | |
41 | 39 |
42 namespace blink { | 40 namespace blink { |
43 | 41 |
44 WindowProxy::~WindowProxy() { | 42 WindowProxy::~WindowProxy() { |
45 // clearForClose() or clearForNavigation() must be invoked before destruction | 43 // clearForClose() or clearForNavigation() must be invoked before destruction |
46 // starts. | 44 // starts. |
47 DCHECK(m_lifecycle != Lifecycle::ContextInitialized); | 45 DCHECK(m_lifecycle != Lifecycle::ContextInitialized); |
48 } | 46 } |
49 | 47 |
50 DEFINE_TRACE(WindowProxy) { | 48 DEFINE_TRACE(WindowProxy) { |
(...skipping 74 matching lines...) Expand 10 before | Expand all | Expand 10 after Loading... |
125 // has a security token which is the domain. The outer window cannot | 123 // has a security token which is the domain. The outer window cannot |
126 // have its own properties. window.foo = 'x' is delegated to the | 124 // have its own properties. window.foo = 'x' is delegated to the |
127 // inner window. | 125 // inner window. |
128 // | 126 // |
129 // When a frame navigates to a new page, the inner window is cut off | 127 // When a frame navigates to a new page, the inner window is cut off |
130 // the outer window, and the outer window identify is preserved for | 128 // the outer window, and the outer window identify is preserved for |
131 // the frame. However, a new inner window is created for the new page. | 129 // the frame. However, a new inner window is created for the new page. |
132 // If there are JS code holds a closure to the old inner window, | 130 // If there are JS code holds a closure to the old inner window, |
133 // it won't be able to reach the outer window via its global object. | 131 // it won't be able to reach the outer window via its global object. |
134 void WindowProxy::initializeIfNeeded() { | 132 void WindowProxy::initializeIfNeeded() { |
135 v8::HandleScope handleScope(m_isolate); | |
136 Lifecycle oldLifecycle = m_lifecycle; | |
137 DOMWindow* window = m_frame->domWindow(); | |
138 bool isLocal = window->isLocalDOMWindow(); | |
139 // Prevent these locals from getting optimized out, and hopefully, the heap | |
140 // contents captured into minidumps. | |
141 WTF::debug::alias(&oldLifecycle); | |
142 WTF::debug::alias(&window); | |
143 WTF::debug::alias(&isLocal); | |
144 | |
145 // TODO(haraken): It is wrong to re-initialize an already detached window | 133 // TODO(haraken): It is wrong to re-initialize an already detached window |
146 // proxy. This must be 'if(m_lifecycle == Lifecycle::ContextUninitialized)'. | 134 // proxy. This must be 'if(m_lifecycle == Lifecycle::ContextUninitialized)'. |
147 if (m_lifecycle != Lifecycle::ContextInitialized) { | 135 if (m_lifecycle != Lifecycle::ContextInitialized) { |
148 initialize(); | 136 initialize(); |
149 // Note: this set of CHECKs is intentionally duplicated below to distinguish | |
150 // between initializing the global with null internal fields or returning a | |
151 // global that claims to be initialized but has null internal fields. | |
152 v8::Local<v8::Object> globalProxy = m_globalProxy.newLocal(m_isolate); | |
153 CHECK(!globalProxy.IsEmpty()); | |
154 CHECK(V8Window::hasInstance(globalProxy, m_isolate)); | |
155 CHECK(window); | |
156 CHECK_EQ(window, V8Window::toImpl(globalProxy)); | |
157 } else { | |
158 v8::Local<v8::Object> globalProxy = m_globalProxy.newLocal(m_isolate); | |
159 CHECK(!globalProxy.IsEmpty()); | |
160 CHECK(V8Window::hasInstance(globalProxy, m_isolate)); | |
161 CHECK(window); | |
162 CHECK_EQ(window, V8Window::toImpl(globalProxy)); | |
163 } | 137 } |
164 | |
165 // Sanity check: WindowProxy's frame's window should still be the same | |
166 DOMWindow* window2 = m_frame->domWindow(); | |
167 WTF::debug::alias(&window2); | |
168 CHECK_EQ(window, window2); | |
169 } | 138 } |
170 | 139 |
171 } // namespace blink | 140 } // namespace blink |
OLD | NEW |