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| 1 /* | |
| 2 * Copyright (C) 2008, 2009, 2011 Google 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 are | |
| 6 * met: | |
| 7 * | |
| 8 * * Redistributions of source code must retain the above copyright | |
| 9 * notice, this list of conditions and the following disclaimer. | |
| 10 * * Redistributions in binary form must reproduce the above | |
| 11 * copyright notice, this list of conditions and the following disclaimer | |
| 12 * in the documentation and/or other materials provided with the | |
| 13 * distribution. | |
| 14 * * Neither the name of Google Inc. nor the names of its | |
| 15 * contributors may be used to endorse or promote products derived from | |
| 16 * this software without specific prior written permission. | |
| 17 * | |
| 18 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS | |
| 19 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT | |
| 20 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR | |
| 21 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT | |
| 22 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, | |
| 23 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT | |
| 24 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, | |
| 25 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY | |
| 26 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT | |
| 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. | |
| 29 */ | |
| 30 | |
| 31 #include "config.h" | |
| 32 #include "bindings/core/v8/V8WindowShell.h" | |
| 33 | |
| 34 #include "bindings/core/v8/DOMWrapperWorld.h" | |
| 35 #include "bindings/core/v8/ScriptController.h" | |
| 36 #include "bindings/core/v8/V8Binding.h" | |
| 37 #include "bindings/core/v8/V8DOMActivityLogger.h" | |
| 38 #include "bindings/core/v8/V8Document.h" | |
| 39 #include "bindings/core/v8/V8GCForContextDispose.h" | |
| 40 #include "bindings/core/v8/V8HTMLCollection.h" | |
| 41 #include "bindings/core/v8/V8HTMLDocument.h" | |
| 42 #include "bindings/core/v8/V8HiddenValue.h" | |
| 43 #include "bindings/core/v8/V8Initializer.h" | |
| 44 #include "bindings/core/v8/V8ObjectConstructor.h" | |
| 45 #include "bindings/core/v8/V8Window.h" | |
| 46 #include "core/frame/LocalFrame.h" | |
| 47 #include "core/frame/csp/ContentSecurityPolicy.h" | |
| 48 #include "core/html/HTMLCollection.h" | |
| 49 #include "core/html/HTMLIFrameElement.h" | |
| 50 #include "core/inspector/InspectorInstrumentation.h" | |
| 51 #include "core/loader/DocumentLoader.h" | |
| 52 #include "core/loader/FrameLoader.h" | |
| 53 #include "core/loader/FrameLoaderClient.h" | |
| 54 #include "platform/RuntimeEnabledFeatures.h" | |
| 55 #include "platform/ScriptForbiddenScope.h" | |
| 56 #include "platform/TraceEvent.h" | |
| 57 #include "platform/heap/Handle.h" | |
| 58 #include "platform/weborigin/SecurityOrigin.h" | |
| 59 #include "public/platform/Platform.h" | |
| 60 #include "wtf/Assertions.h" | |
| 61 #include "wtf/OwnPtr.h" | |
| 62 #include "wtf/StringExtras.h" | |
| 63 #include "wtf/text/CString.h" | |
| 64 #include <algorithm> | |
| 65 #include <utility> | |
| 66 #include <v8-debug.h> | |
| 67 #include <v8.h> | |
| 68 | |
| 69 namespace blink { | |
| 70 | |
| 71 static void checkDocumentWrapper(v8::Handle<v8::Object> wrapper, Document* docum
ent) | |
| 72 { | |
| 73 ASSERT(V8Document::toNative(wrapper) == document); | |
| 74 ASSERT(!document->isHTMLDocument() || (V8Document::toNative(v8::Handle<v8::O
bject>::Cast(wrapper->GetPrototype())) == document)); | |
| 75 } | |
| 76 | |
| 77 PassOwnPtr<V8WindowShell> V8WindowShell::create(LocalFrame* frame, DOMWrapperWor
ld& world, v8::Isolate* isolate) | |
| 78 { | |
| 79 return adoptPtr(new V8WindowShell(frame, &world, isolate)); | |
| 80 } | |
| 81 | |
| 82 V8WindowShell::V8WindowShell(LocalFrame* frame, PassRefPtr<DOMWrapperWorld> worl
d, v8::Isolate* isolate) | |
| 83 : m_frame(frame) | |
| 84 , m_isolate(isolate) | |
| 85 , m_world(world) | |
| 86 { | |
| 87 } | |
| 88 | |
| 89 void V8WindowShell::disposeContext(GlobalDetachmentBehavior behavior) | |
| 90 { | |
| 91 if (!isContextInitialized()) | |
| 92 return; | |
| 93 | |
| 94 v8::HandleScope handleScope(m_isolate); | |
| 95 v8::Handle<v8::Context> context = m_scriptState->context(); | |
| 96 m_frame->loader().client()->willReleaseScriptContext(context, m_world->world
Id()); | |
| 97 | |
| 98 if (behavior == DetachGlobal) | |
| 99 context->DetachGlobal(); | |
| 100 | |
| 101 m_scriptState->disposePerContextData(); | |
| 102 | |
| 103 // It's likely that disposing the context has created a lot of | |
| 104 // garbage. Notify V8 about this so it'll have a chance of cleaning | |
| 105 // it up when idle. | |
| 106 V8GCForContextDispose::instanceTemplate().notifyContextDisposed(m_frame->isM
ainFrame()); | |
| 107 } | |
| 108 | |
| 109 void V8WindowShell::clearForClose() | |
| 110 { | |
| 111 if (!isContextInitialized()) | |
| 112 return; | |
| 113 | |
| 114 m_document.clear(); | |
| 115 disposeContext(DoNotDetachGlobal); | |
| 116 } | |
| 117 | |
| 118 void V8WindowShell::clearForNavigation() | |
| 119 { | |
| 120 if (!isContextInitialized()) | |
| 121 return; | |
| 122 | |
| 123 ScriptState::Scope scope(m_scriptState.get()); | |
| 124 | |
| 125 m_document.clear(); | |
| 126 | |
| 127 // Clear the document wrapper cache before turning on access checks on | |
| 128 // the old LocalDOMWindow wrapper. This way, access to the document wrapper | |
| 129 // will be protected by the security checks on the LocalDOMWindow wrapper. | |
| 130 clearDocumentProperty(); | |
| 131 | |
| 132 v8::Handle<v8::Object> windowWrapper = V8Window::findInstanceInPrototypeChai
n(m_global.newLocal(m_isolate), m_isolate); | |
| 133 ASSERT(!windowWrapper.IsEmpty()); | |
| 134 windowWrapper->TurnOnAccessCheck(); | |
| 135 disposeContext(DetachGlobal); | |
| 136 } | |
| 137 | |
| 138 // Create a new environment and setup the global object. | |
| 139 // | |
| 140 // The global object corresponds to a LocalDOMWindow instance. However, to | |
| 141 // allow properties of the JS LocalDOMWindow instance to be shadowed, we | |
| 142 // use a shadow object as the global object and use the JS LocalDOMWindow | |
| 143 // instance as the prototype for that shadow object. The JS LocalDOMWindow | |
| 144 // instance is undetectable from JavaScript code because the __proto__ | |
| 145 // accessors skip that object. | |
| 146 // | |
| 147 // The shadow object and the LocalDOMWindow instance are seen as one object | |
| 148 // from JavaScript. The JavaScript object that corresponds to a | |
| 149 // LocalDOMWindow instance is the shadow object. When mapping a LocalDOMWindow | |
| 150 // instance to a V8 object, we return the shadow object. | |
| 151 // | |
| 152 // To implement split-window, see | |
| 153 // 1) https://bugs.webkit.org/show_bug.cgi?id=17249 | |
| 154 // 2) https://wiki.mozilla.org/Gecko:SplitWindow | |
| 155 // 3) https://bugzilla.mozilla.org/show_bug.cgi?id=296639 | |
| 156 // we need to split the shadow object further into two objects: | |
| 157 // an outer window and an inner window. The inner window is the hidden | |
| 158 // prototype of the outer window. The inner window is the default | |
| 159 // global object of the context. A variable declared in the global | |
| 160 // scope is a property of the inner window. | |
| 161 // | |
| 162 // The outer window sticks to a LocalFrame, it is exposed to JavaScript | |
| 163 // via window.window, window.self, window.parent, etc. The outer window | |
| 164 // has a security token which is the domain. The outer window cannot | |
| 165 // have its own properties. window.foo = 'x' is delegated to the | |
| 166 // inner window. | |
| 167 // | |
| 168 // When a frame navigates to a new page, the inner window is cut off | |
| 169 // the outer window, and the outer window identify is preserved for | |
| 170 // the frame. However, a new inner window is created for the new page. | |
| 171 // If there are JS code holds a closure to the old inner window, | |
| 172 // it won't be able to reach the outer window via its global object. | |
| 173 bool V8WindowShell::initializeIfNeeded() | |
| 174 { | |
| 175 if (isContextInitialized()) | |
| 176 return true; | |
| 177 | |
| 178 DOMWrapperWorld::setWorldOfInitializingWindow(m_world.get()); | |
| 179 bool result = initialize(); | |
| 180 DOMWrapperWorld::setWorldOfInitializingWindow(0); | |
| 181 return result; | |
| 182 } | |
| 183 | |
| 184 bool V8WindowShell::initialize() | |
| 185 { | |
| 186 TRACE_EVENT0("v8", "V8WindowShell::initialize"); | |
| 187 TRACE_EVENT_SCOPED_SAMPLING_STATE("blink", "InitializeWindow"); | |
| 188 | |
| 189 ScriptForbiddenScope::AllowUserAgentScript allowScript; | |
| 190 | |
| 191 v8::HandleScope handleScope(m_isolate); | |
| 192 | |
| 193 createContext(); | |
| 194 | |
| 195 if (!isContextInitialized()) | |
| 196 return false; | |
| 197 | |
| 198 ScriptState::Scope scope(m_scriptState.get()); | |
| 199 v8::Handle<v8::Context> context = m_scriptState->context(); | |
| 200 if (m_global.isEmpty()) { | |
| 201 m_global.set(m_isolate, context->Global()); | |
| 202 if (m_global.isEmpty()) { | |
| 203 disposeContext(DoNotDetachGlobal); | |
| 204 return false; | |
| 205 } | |
| 206 } | |
| 207 | |
| 208 if (!installDOMWindow()) { | |
| 209 disposeContext(DoNotDetachGlobal); | |
| 210 return false; | |
| 211 } | |
| 212 | |
| 213 if (m_world->isMainWorld()) { | |
| 214 // ActivityLogger for main world is updated within updateDocument(). | |
| 215 updateDocument(); | |
| 216 if (m_frame->document()) { | |
| 217 setSecurityToken(m_frame->document()->securityOrigin()); | |
| 218 ContentSecurityPolicy* csp = m_frame->document()->contentSecurityPol
icy(); | |
| 219 context->AllowCodeGenerationFromStrings(csp->allowEval(0, ContentSec
urityPolicy::SuppressReport)); | |
| 220 context->SetErrorMessageForCodeGenerationFromStrings(v8String(m_isol
ate, csp->evalDisabledErrorMessage())); | |
| 221 } | |
| 222 } else { | |
| 223 updateActivityLogger(); | |
| 224 SecurityOrigin* origin = m_world->isolatedWorldSecurityOrigin(); | |
| 225 setSecurityToken(origin); | |
| 226 if (origin && InspectorInstrumentation::hasFrontends()) { | |
| 227 InspectorInstrumentation::didCreateIsolatedContext(m_frame, m_script
State.get(), origin); | |
| 228 } | |
| 229 } | |
| 230 m_frame->loader().client()->didCreateScriptContext(context, m_world->extensi
onGroup(), m_world->worldId()); | |
| 231 return true; | |
| 232 } | |
| 233 | |
| 234 void V8WindowShell::createContext() | |
| 235 { | |
| 236 // The documentLoader pointer could be 0 during frame shutdown. | |
| 237 // FIXME: Can we remove this check? | |
| 238 if (!m_frame->loader().documentLoader()) | |
| 239 return; | |
| 240 | |
| 241 // Create a new environment using an empty template for the shadow | |
| 242 // object. Reuse the global object if one has been created earlier. | |
| 243 v8::Handle<v8::ObjectTemplate> globalTemplate = V8Window::getShadowObjectTem
plate(m_isolate); | |
| 244 if (globalTemplate.IsEmpty()) | |
| 245 return; | |
| 246 | |
| 247 double contextCreationStartInSeconds = currentTime(); | |
| 248 | |
| 249 // Dynamically tell v8 about our extensions now. | |
| 250 const V8Extensions& extensions = ScriptController::registeredExtensions(); | |
| 251 OwnPtr<const char*[]> extensionNames = adoptArrayPtr(new const char*[extensi
ons.size()]); | |
| 252 int index = 0; | |
| 253 int extensionGroup = m_world->extensionGroup(); | |
| 254 int worldId = m_world->worldId(); | |
| 255 for (size_t i = 0; i < extensions.size(); ++i) { | |
| 256 if (!m_frame->loader().client()->allowScriptExtension(extensions[i]->nam
e(), extensionGroup, worldId)) | |
| 257 continue; | |
| 258 | |
| 259 extensionNames[index++] = extensions[i]->name(); | |
| 260 } | |
| 261 v8::ExtensionConfiguration extensionConfiguration(index, extensionNames.get(
)); | |
| 262 | |
| 263 v8::Handle<v8::Context> context = v8::Context::New(m_isolate, &extensionConf
iguration, globalTemplate, m_global.newLocal(m_isolate)); | |
| 264 if (context.IsEmpty()) | |
| 265 return; | |
| 266 m_scriptState = ScriptState::create(context, m_world); | |
| 267 | |
| 268 double contextCreationDurationInMilliseconds = (currentTime() - contextCreat
ionStartInSeconds) * 1000; | |
| 269 const char* histogramName = "WebCore.V8WindowShell.createContext.MainWorld"; | |
| 270 if (!m_world->isMainWorld()) | |
| 271 histogramName = "WebCore.V8WindowShell.createContext.IsolatedWorld"; | |
| 272 blink::Platform::current()->histogramCustomCounts(histogramName, contextCrea
tionDurationInMilliseconds, 0, 10000, 50); | |
| 273 } | |
| 274 | |
| 275 static v8::Handle<v8::Object> toInnerGlobalObject(v8::Handle<v8::Context> contex
t) | |
| 276 { | |
| 277 return v8::Handle<v8::Object>::Cast(context->Global()->GetPrototype()); | |
| 278 } | |
| 279 | |
| 280 bool V8WindowShell::installDOMWindow() | |
| 281 { | |
| 282 LocalDOMWindow* window = m_frame->domWindow(); | |
| 283 v8::Local<v8::Object> windowWrapper = V8ObjectConstructor::newInstance(m_iso
late, m_scriptState->perContextData()->constructorForType(&V8Window::wrapperType
Info)); | |
| 284 if (windowWrapper.IsEmpty()) | |
| 285 return false; | |
| 286 | |
| 287 V8DOMWrapper::setNativeInfoForHiddenWrapper(v8::Handle<v8::Object>::Cast(win
dowWrapper->GetPrototype()), &V8Window::wrapperTypeInfo, window); | |
| 288 | |
| 289 // Install the windowWrapper as the prototype of the innerGlobalObject. | |
| 290 // The full structure of the global object is as follows: | |
| 291 // | |
| 292 // outerGlobalObject (Empty object, remains after navigation) | |
| 293 // -- has prototype --> innerGlobalObject (Holds global variables, changes
during navigation) | |
| 294 // -- has prototype --> LocalDOMWindow instance | |
| 295 // -- has prototype --> Window.prototype | |
| 296 // -- has prototype --> Object.prototype | |
| 297 // | |
| 298 // Note: Much of this prototype structure is hidden from web content. The | |
| 299 // outer, inner, and LocalDOMWindow instance all appear to be the same | |
| 300 // JavaScript object. | |
| 301 // | |
| 302 // Note: With Oilpan, the LocalDOMWindow object is garbage collected. | |
| 303 // Persistent references to this inner global object view of the Local
DOMWindow | |
| 304 // aren't kept, as that would prevent the global object from ever bein
g released. | |
| 305 // It is safe not to do so, as the wrapper for the LocalDOMWindow bein
g installed here | |
| 306 // already keeps a persistent reference, and it along with the inner g
lobal object | |
| 307 // views of the LocalDOMWindow will die together once that wrapper cle
ars the persistent | |
| 308 // reference. | |
| 309 v8::Handle<v8::Object> innerGlobalObject = toInnerGlobalObject(m_scriptState
->context()); | |
| 310 V8DOMWrapper::setNativeInfoForHiddenWrapper(innerGlobalObject, &V8Window::wr
apperTypeInfo, window); | |
| 311 innerGlobalObject->SetPrototype(windowWrapper); | |
| 312 V8DOMWrapper::associateObjectWithWrapper<V8Window>(PassRefPtrWillBeRawPtr<Lo
calDOMWindow>(window), &V8Window::wrapperTypeInfo, windowWrapper, m_isolate, Wra
pperConfiguration::Dependent); | |
| 313 V8Window::installPerContextEnabledProperties(windowWrapper, window, m_isolat
e); | |
| 314 return true; | |
| 315 } | |
| 316 | |
| 317 void V8WindowShell::updateDocumentWrapper(v8::Handle<v8::Object> wrapper) | |
| 318 { | |
| 319 ASSERT(m_world->isMainWorld()); | |
| 320 m_document.set(m_isolate, wrapper); | |
| 321 } | |
| 322 | |
| 323 void V8WindowShell::updateDocumentProperty() | |
| 324 { | |
| 325 if (!m_world->isMainWorld()) | |
| 326 return; | |
| 327 | |
| 328 ScriptState::Scope scope(m_scriptState.get()); | |
| 329 v8::Handle<v8::Context> context = m_scriptState->context(); | |
| 330 v8::Handle<v8::Value> documentWrapper = toV8(m_frame->document(), context->G
lobal(), context->GetIsolate()); | |
| 331 ASSERT(documentWrapper == m_document.newLocal(m_isolate) || m_document.isEmp
ty()); | |
| 332 if (m_document.isEmpty()) | |
| 333 updateDocumentWrapper(v8::Handle<v8::Object>::Cast(documentWrapper)); | |
| 334 checkDocumentWrapper(m_document.newLocal(m_isolate), m_frame->document()); | |
| 335 | |
| 336 // If instantiation of the document wrapper fails, clear the cache | |
| 337 // and let the LocalDOMWindow accessor handle access to the document. | |
| 338 if (documentWrapper.IsEmpty()) { | |
| 339 clearDocumentProperty(); | |
| 340 return; | |
| 341 } | |
| 342 ASSERT(documentWrapper->IsObject()); | |
| 343 context->Global()->ForceSet(v8AtomicString(m_isolate, "document"), documentW
rapper, static_cast<v8::PropertyAttribute>(v8::ReadOnly | v8::DontDelete)); | |
| 344 | |
| 345 // We also stash a reference to the document on the inner global object so t
hat | |
| 346 // LocalDOMWindow objects we obtain from JavaScript references are guarantee
d to have | |
| 347 // live Document objects. | |
| 348 V8HiddenValue::setHiddenValue(m_isolate, toInnerGlobalObject(context), V8Hid
denValue::document(m_isolate), documentWrapper); | |
| 349 } | |
| 350 | |
| 351 void V8WindowShell::clearDocumentProperty() | |
| 352 { | |
| 353 ASSERT(isContextInitialized()); | |
| 354 if (!m_world->isMainWorld()) | |
| 355 return; | |
| 356 v8::HandleScope handleScope(m_isolate); | |
| 357 m_scriptState->context()->Global()->ForceDelete(v8AtomicString(m_isolate, "d
ocument")); | |
| 358 } | |
| 359 | |
| 360 void V8WindowShell::updateActivityLogger() | |
| 361 { | |
| 362 m_scriptState->perContextData()->setActivityLogger(V8DOMActivityLogger::acti
vityLogger( | |
| 363 m_world->worldId(), m_frame->document() ? m_frame->document()->baseURI()
: KURL())); | |
| 364 } | |
| 365 | |
| 366 void V8WindowShell::setSecurityToken(SecurityOrigin* origin) | |
| 367 { | |
| 368 // If two tokens are equal, then the SecurityOrigins canAccess each other. | |
| 369 // If two tokens are not equal, then we have to call canAccess. | |
| 370 // Note: we can't use the HTTPOrigin if it was set from the DOM. | |
| 371 String token; | |
| 372 // We stick with an empty token if document.domain was modified or if we | |
| 373 // are in the initial empty document, so that we can do a full canAccess | |
| 374 // check in those cases. | |
| 375 bool delaySet = m_world->isMainWorld() | |
| 376 && (origin->domainWasSetInDOM() | |
| 377 || m_frame->loader().stateMachine()->isDisplayingInitialEmptyDocumen
t()); | |
| 378 if (origin && !delaySet) | |
| 379 token = origin->toString(); | |
| 380 | |
| 381 // An empty or "null" token means we always have to call | |
| 382 // canAccess. The toString method on securityOrigins returns the | |
| 383 // string "null" for empty security origins and for security | |
| 384 // origins that should only allow access to themselves. In this | |
| 385 // case, we use the global object as the security token to avoid | |
| 386 // calling canAccess when a script accesses its own objects. | |
| 387 v8::HandleScope handleScope(m_isolate); | |
| 388 v8::Handle<v8::Context> context = m_scriptState->context(); | |
| 389 if (token.isEmpty() || token == "null") { | |
| 390 context->UseDefaultSecurityToken(); | |
| 391 return; | |
| 392 } | |
| 393 | |
| 394 if (m_world->isPrivateScriptIsolatedWorld()) | |
| 395 token = "private-script://" + token; | |
| 396 | |
| 397 CString utf8Token = token.utf8(); | |
| 398 // NOTE: V8 does identity comparison in fast path, must use a symbol | |
| 399 // as the security token. | |
| 400 context->SetSecurityToken(v8AtomicString(m_isolate, utf8Token.data(), utf8To
ken.length())); | |
| 401 } | |
| 402 | |
| 403 void V8WindowShell::updateDocument() | |
| 404 { | |
| 405 ASSERT(m_world->isMainWorld()); | |
| 406 if (!isGlobalInitialized()) | |
| 407 return; | |
| 408 if (!isContextInitialized()) | |
| 409 return; | |
| 410 updateActivityLogger(); | |
| 411 updateDocumentProperty(); | |
| 412 updateSecurityOrigin(m_frame->document()->securityOrigin()); | |
| 413 } | |
| 414 | |
| 415 static v8::Handle<v8::Value> getNamedProperty(HTMLDocument* htmlDocument, const
AtomicString& key, v8::Handle<v8::Object> creationContext, v8::Isolate* isolate) | |
| 416 { | |
| 417 if (!htmlDocument->hasNamedItem(key) && !htmlDocument->hasExtraNamedItem(key
)) | |
| 418 return v8Undefined(); | |
| 419 | |
| 420 RefPtrWillBeRawPtr<HTMLCollection> items = htmlDocument->documentNamedItems(
key); | |
| 421 if (items->isEmpty()) | |
| 422 return v8Undefined(); | |
| 423 | |
| 424 if (items->hasExactlyOneItem()) { | |
| 425 Element* element = items->item(0); | |
| 426 ASSERT(element); | |
| 427 Frame* frame = isHTMLIFrameElement(*element) ? toHTMLIFrameElement(*elem
ent).contentFrame() : 0; | |
| 428 if (frame) | |
| 429 return toV8(frame->domWindow(), creationContext, isolate); | |
| 430 return toV8(element, creationContext, isolate); | |
| 431 } | |
| 432 return toV8(items.release(), creationContext, isolate); | |
| 433 } | |
| 434 | |
| 435 static void getter(v8::Local<v8::String> property, const v8::PropertyCallbackInf
o<v8::Value>& info) | |
| 436 { | |
| 437 // FIXME: Consider passing StringImpl directly. | |
| 438 AtomicString name = toCoreAtomicString(property); | |
| 439 HTMLDocument* htmlDocument = V8HTMLDocument::toNative(info.Holder()); | |
| 440 ASSERT(htmlDocument); | |
| 441 v8::Handle<v8::Value> result = getNamedProperty(htmlDocument, name, info.Hol
der(), info.GetIsolate()); | |
| 442 if (!result.IsEmpty()) { | |
| 443 v8SetReturnValue(info, result); | |
| 444 return; | |
| 445 } | |
| 446 v8::Handle<v8::Value> prototype = info.Holder()->GetPrototype(); | |
| 447 if (prototype->IsObject()) { | |
| 448 v8SetReturnValue(info, prototype.As<v8::Object>()->Get(property)); | |
| 449 return; | |
| 450 } | |
| 451 } | |
| 452 | |
| 453 void V8WindowShell::namedItemAdded(HTMLDocument* document, const AtomicString& n
ame) | |
| 454 { | |
| 455 ASSERT(m_world->isMainWorld()); | |
| 456 | |
| 457 if (!isContextInitialized()) | |
| 458 return; | |
| 459 | |
| 460 ScriptState::Scope scope(m_scriptState.get()); | |
| 461 ASSERT(!m_document.isEmpty()); | |
| 462 v8::Handle<v8::Object> documentHandle = m_document.newLocal(m_isolate); | |
| 463 checkDocumentWrapper(documentHandle, document); | |
| 464 documentHandle->SetAccessor(v8String(m_isolate, name), getter); | |
| 465 } | |
| 466 | |
| 467 void V8WindowShell::namedItemRemoved(HTMLDocument* document, const AtomicString&
name) | |
| 468 { | |
| 469 ASSERT(m_world->isMainWorld()); | |
| 470 | |
| 471 if (!isContextInitialized()) | |
| 472 return; | |
| 473 | |
| 474 if (document->hasNamedItem(name) || document->hasExtraNamedItem(name)) | |
| 475 return; | |
| 476 | |
| 477 ScriptState::Scope scope(m_scriptState.get()); | |
| 478 ASSERT(!m_document.isEmpty()); | |
| 479 v8::Handle<v8::Object> documentHandle = m_document.newLocal(m_isolate); | |
| 480 checkDocumentWrapper(documentHandle, document); | |
| 481 documentHandle->Delete(v8String(m_isolate, name)); | |
| 482 } | |
| 483 | |
| 484 void V8WindowShell::updateSecurityOrigin(SecurityOrigin* origin) | |
| 485 { | |
| 486 ASSERT(m_world->isMainWorld()); | |
| 487 if (!isContextInitialized()) | |
| 488 return; | |
| 489 setSecurityToken(origin); | |
| 490 } | |
| 491 | |
| 492 } // namespace blink | |
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Chromium Code Reviews
Issue 451013003:
Rename V8WindowShell to WindowProxy (Closed)
Base URL: svn://svn.chromium.org/blink/trunk