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-rw-r--r--WebCore/bindings/v8/V8Utilities.cpp135
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diff --git a/WebCore/bindings/v8/V8Utilities.cpp b/WebCore/bindings/v8/V8Utilities.cpp
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--- a/WebCore/bindings/v8/V8Utilities.cpp
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-/*
- * Copyright (C) 2008, 2009 Google Inc. All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions are
- * met:
- *
- * * Redistributions of source code must retain the above copyright
- * notice, this list of conditions and the following disclaimer.
- * * Redistributions in binary form must reproduce the above
- * copyright notice, this list of conditions and the following disclaimer
- * in the documentation and/or other materials provided with the
- * distribution.
- * * Neither the name of Google Inc. nor the names of its
- * contributors may be used to endorse or promote products derived from
- * this software without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
- * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
- * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
- * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
- * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
- * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
- * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
- * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
- * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
- * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
- * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
- */
-
-#include "config.h"
-#include "V8Utilities.h"
-
-#include <v8.h>
-
-#include "Document.h"
-#include "Frame.h"
-#include "ScriptExecutionContext.h"
-#include "ScriptState.h"
-#include "V8Binding.h"
-#include "V8BindingState.h"
-#include "V8Proxy.h"
-#include "WorkerContext.h"
-#include "WorkerContextExecutionProxy.h"
-
-#include <wtf/Assertions.h>
-#include "Frame.h"
-
-namespace WebCore {
-
-// Use an array to hold dependents. It works like a ref-counted scheme.
-// A value can be added more than once to the DOM object.
-void createHiddenDependency(v8::Handle<v8::Object> object, v8::Local<v8::Value> value, int cacheIndex)
-{
- v8::Local<v8::Value> cache = object->GetInternalField(cacheIndex);
- if (cache->IsNull() || cache->IsUndefined()) {
- cache = v8::Array::New();
- object->SetInternalField(cacheIndex, cache);
- }
-
- v8::Local<v8::Array> cacheArray = v8::Local<v8::Array>::Cast(cache);
- cacheArray->Set(v8::Integer::New(cacheArray->Length()), value);
-}
-
-void removeHiddenDependency(v8::Handle<v8::Object> object, v8::Local<v8::Value> value, int cacheIndex)
-{
- v8::Local<v8::Value> cache = object->GetInternalField(cacheIndex);
- if (!cache->IsArray())
- return;
- v8::Local<v8::Array> cacheArray = v8::Local<v8::Array>::Cast(cache);
- for (int i = cacheArray->Length() - 1; i >= 0; --i) {
- v8::Local<v8::Value> cached = cacheArray->Get(v8::Integer::New(i));
- if (cached->StrictEquals(value)) {
- cacheArray->Delete(i);
- return;
- }
- }
-}
-
-void transferHiddenDependency(v8::Handle<v8::Object> object,
- EventListener* oldValue,
- v8::Local<v8::Value> newValue,
- int cacheIndex)
-{
- if (oldValue) {
- V8AbstractEventListener* oldListener = V8AbstractEventListener::cast(oldValue);
- if (oldListener) {
- v8::Local<v8::Object> oldListenerObject = oldListener->getExistingListenerObject();
- if (!oldListenerObject.IsEmpty())
- removeHiddenDependency(object, oldListenerObject, cacheIndex);
- }
- }
- if (!newValue->IsNull() && !newValue->IsUndefined())
- createHiddenDependency(object, newValue, cacheIndex);
-}
-
-bool processingUserGesture()
-{
- return V8BindingState::Only()->processingUserGesture();
-}
-
-Frame* callingOrEnteredFrame()
-{
- return V8BindingState::Only()->activeFrame();
-}
-
-bool shouldAllowNavigation(Frame* frame)
-{
- return V8BindingSecurity::shouldAllowNavigation(V8BindingState::Only(), frame);
-}
-
-KURL completeURL(const String& relativeURL)
-{
- return completeURL(V8BindingState::Only(), relativeURL);
-}
-
-void navigateIfAllowed(Frame* frame, const KURL& url, bool lockHistory, bool lockBackForwardList)
-{
- return V8Binding::Frame::navigateIfAllowed(V8BindingState::Only(), frame, url, lockHistory, lockBackForwardList);
-}
-
-ScriptExecutionContext* getScriptExecutionContext()
-{
-#if ENABLE(WORKERS)
- if (WorkerScriptController* controller = WorkerScriptController::controllerForContext())
- return controller->workerContext();
-#endif
-
- if (Frame* frame = V8Proxy::retrieveFrameForCurrentContext())
- return frame->document()->scriptExecutionContext();
-
- return 0;
-}
-
-} // namespace WebCore