Split bindings/v8/custom into core and modules.

Source/bindings/v8/custom/V8PopStateEventCustom.cpp

-/*
- * Copyright (C) 2010 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 "bindings/core/v8/V8PopStateEvent.h"
-
-#include "bindings/core/v8/V8History.h"
-#include "bindings/v8/SerializedScriptValue.h"
-#include "bindings/v8/V8HiddenValue.h"
-#include "core/events/PopStateEvent.h"
-#include "core/frame/History.h"
-
-namespace WebCore {
-
-// Save the state value to a hidden attribute in the V8PopStateEvent, and return it, for convenience.
-static v8::Handle<v8::Value> cacheState(v8::Handle<v8::Object> popStateEvent, v8::Handle<v8::Value> state, v8::Isolate* isolate)
-{
-    V8HiddenValue::setHiddenValue(isolate, popStateEvent, V8HiddenValue::state(isolate), state);
-    return state;
-}
-
-void V8PopStateEvent::stateAttributeGetterCustom(const v8::PropertyCallbackInfo<v8::Value>& info)
-{
-    v8::Handle<v8::Value> result = V8HiddenValue::getHiddenValue(info.GetIsolate(), info.Holder(), V8HiddenValue::state(info.GetIsolate()));
-
-    if (!result.IsEmpty()) {
-        v8SetReturnValue(info, result);
-        return;
-    }
-
-    PopStateEvent* event = V8PopStateEvent::toNative(info.Holder());
-    History* history = event->history();
-    if (!history || !event->serializedState()) {
-        if (!event->serializedState()) {
-            // If we're in an isolated world and the event was created in the main world,
-            // we need to find the 'state' property on the main world wrapper and clone it.
-            v8::Local<v8::Value> mainWorldState = V8HiddenValue::getHiddenValueFromMainWorldWrapper(info.GetIsolate(), event, V8HiddenValue::state(info.GetIsolate()));
-            if (!mainWorldState.IsEmpty())
-                event->setSerializedState(SerializedScriptValue::createAndSwallowExceptions(mainWorldState, info.GetIsolate()));
-        }
-        if (event->serializedState())
-            result = event->serializedState()->deserialize();
-        else
-            result = v8::Null(info.GetIsolate());
-        v8SetReturnValue(info, cacheState(info.Holder(), result, info.GetIsolate()));
-        return;
-    }
-
-    // There's no cached value from a previous invocation, nor a state value was provided by the
-    // event, but there is a history object, so first we need to see if the state object has been
-    // deserialized through the history object already.
-    // The current history state object might've changed in the meantime, so we need to take care
-    // of using the correct one, and always share the same deserialization with history.state.
-
-    bool isSameState = history->isSameAsCurrentState(event->serializedState());
-
-    if (isSameState) {
-        v8::Handle<v8::Object> v8History = toV8(history, info.Holder(), info.GetIsolate()).As<v8::Object>();
-        if (!history->stateChanged()) {
-            result = V8HiddenValue::getHiddenValue(info.GetIsolate(), v8History, V8HiddenValue::state(info.GetIsolate()));
-            if (!result.IsEmpty()) {
-                v8SetReturnValue(info, cacheState(info.Holder(), result, info.GetIsolate()));
-                return;
-            }
-        }
-        result = event->serializedState()->deserialize(info.GetIsolate());
-        V8HiddenValue::setHiddenValue(info.GetIsolate(), v8History, V8HiddenValue::state(info.GetIsolate()), result);
-    } else {
-        result = event->serializedState()->deserialize(info.GetIsolate());
-    }
-
-    v8SetReturnValue(info, cacheState(info.Holder(), result, info.GetIsolate()));
-}
-
-} // namespace WebCore