15c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles)/* 25c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) * Copyright (C) 2010 Google Inc. All rights reserved. 35c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) * 45c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) * Redistribution and use in source and binary forms, with or without 55c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) * modification, are permitted provided that the following conditions are 65c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) * met: 75c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) * 85c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) * * Redistributions of source code must retain the above copyright 95c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) * notice, this list of conditions and the following disclaimer. 105c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) * * Redistributions in binary form must reproduce the above 115c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) * copyright notice, this list of conditions and the following disclaimer 125c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) * in the documentation and/or other materials provided with the 135c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) * distribution. 145c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) * * Neither the name of Google Inc. nor the names of its 155c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) * contributors may be used to endorse or promote products derived from 165c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) * this software without specific prior written permission. 175c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) * 185c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 195c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 205c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR 215c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 225c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 235c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 245c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 255c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 265c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 275c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 285c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 295c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) */ 305c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) 315c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles)#include "config.h" 32d6cdb82654e8f3343a693ca752d5c4cee0324e17Torne (Richard Coles)#include "bindings/core/v8/V8PopStateEvent.h" 335c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) 34197021e6b966cfb06891637935ef33fff06433d1Ben Murdoch#include "bindings/core/v8/SerializedScriptValue.h" 35197021e6b966cfb06891637935ef33fff06433d1Ben Murdoch#include "bindings/core/v8/V8HiddenValue.h" 36d6cdb82654e8f3343a693ca752d5c4cee0324e17Torne (Richard Coles)#include "bindings/core/v8/V8History.h" 3706f816c7c76bc45a15e452ade8a34e8af077693eTorne (Richard Coles)#include "core/events/PopStateEvent.h" 381e202183a5dc46166763171984b285173f8585e5Torne (Richard Coles)#include "core/frame/History.h" 395c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) 40c1847b1379d12d0e05df27436bf19a9b1bf12deaTorne (Richard Coles)namespace blink { 415c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) 425c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles)// Save the state value to a hidden attribute in the V8PopStateEvent, and return it, for convenience. 4306f816c7c76bc45a15e452ade8a34e8af077693eTorne (Richard Coles)static v8::Handle<v8::Value> cacheState(v8::Handle<v8::Object> popStateEvent, v8::Handle<v8::Value> state, v8::Isolate* isolate) 445c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles){ 45d5428f32f5d1719f774f62e19147104ca245a3abTorne (Richard Coles) V8HiddenValue::setHiddenValue(isolate, popStateEvent, V8HiddenValue::state(isolate), state); 465c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) return state; 475c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles)} 485c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) 4919cde67944066db31e633d9e386f2aa9bf9fadb3Torne (Richard Coles)void V8PopStateEvent::stateAttributeGetterCustom(const v8::PropertyCallbackInfo<v8::Value>& info) 505c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles){ 51d5428f32f5d1719f774f62e19147104ca245a3abTorne (Richard Coles) v8::Handle<v8::Value> result = V8HiddenValue::getHiddenValue(info.GetIsolate(), info.Holder(), V8HiddenValue::state(info.GetIsolate())); 525c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) 535267f701546148b83dfbe1d151cb184385bb5c22Torne (Richard Coles) if (!result.IsEmpty()) { 545267f701546148b83dfbe1d151cb184385bb5c22Torne (Richard Coles) v8SetReturnValue(info, result); 555267f701546148b83dfbe1d151cb184385bb5c22Torne (Richard Coles) return; 565267f701546148b83dfbe1d151cb184385bb5c22Torne (Richard Coles) } 575c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) 587242dc3dbeb210b5e876a3c42d1ec1a667fc621aPrimiano Tucci PopStateEvent* event = V8PopStateEvent::toImpl(info.Holder()); 595c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) History* history = event->history(); 605267f701546148b83dfbe1d151cb184385bb5c22Torne (Richard Coles) if (!history || !event->serializedState()) { 617757ec2eadfa2dd8ac2aeed0a4399e9b07ec38cbBen Murdoch if (!event->serializedState()) { 627757ec2eadfa2dd8ac2aeed0a4399e9b07ec38cbBen Murdoch // If we're in an isolated world and the event was created in the main world, 637757ec2eadfa2dd8ac2aeed0a4399e9b07ec38cbBen Murdoch // we need to find the 'state' property on the main world wrapper and clone it. 64d5428f32f5d1719f774f62e19147104ca245a3abTorne (Richard Coles) v8::Local<v8::Value> mainWorldState = V8HiddenValue::getHiddenValueFromMainWorldWrapper(info.GetIsolate(), event, V8HiddenValue::state(info.GetIsolate())); 657757ec2eadfa2dd8ac2aeed0a4399e9b07ec38cbBen Murdoch if (!mainWorldState.IsEmpty()) 667757ec2eadfa2dd8ac2aeed0a4399e9b07ec38cbBen Murdoch event->setSerializedState(SerializedScriptValue::createAndSwallowExceptions(mainWorldState, info.GetIsolate())); 677757ec2eadfa2dd8ac2aeed0a4399e9b07ec38cbBen Murdoch } 687757ec2eadfa2dd8ac2aeed0a4399e9b07ec38cbBen Murdoch if (event->serializedState()) 697757ec2eadfa2dd8ac2aeed0a4399e9b07ec38cbBen Murdoch result = event->serializedState()->deserialize(); 707757ec2eadfa2dd8ac2aeed0a4399e9b07ec38cbBen Murdoch else 717757ec2eadfa2dd8ac2aeed0a4399e9b07ec38cbBen Murdoch result = v8::Null(info.GetIsolate()); 7206f816c7c76bc45a15e452ade8a34e8af077693eTorne (Richard Coles) v8SetReturnValue(info, cacheState(info.Holder(), result, info.GetIsolate())); 735267f701546148b83dfbe1d151cb184385bb5c22Torne (Richard Coles) return; 745267f701546148b83dfbe1d151cb184385bb5c22Torne (Richard Coles) } 755c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) 765c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) // There's no cached value from a previous invocation, nor a state value was provided by the 775c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) // event, but there is a history object, so first we need to see if the state object has been 785c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) // deserialized through the history object already. 795c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) // The current history state object might've changed in the meantime, so we need to take care 805c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) // of using the correct one, and always share the same deserialization with history.state. 815c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) 82e69819bd8e388ea4ad1636a19aa6b2eed4952191Ben Murdoch bool isSameState = history->isSameAsCurrentState(event->serializedState()); 835c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) 845c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) if (isSameState) { 85e1f1df5f01594c0e62e751e4b46e779b85c2faa5Torne (Richard Coles) v8::Handle<v8::Object> v8History = toV8(history, info.Holder(), info.GetIsolate()).As<v8::Object>(); 865c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) if (!history->stateChanged()) { 87d5428f32f5d1719f774f62e19147104ca245a3abTorne (Richard Coles) result = V8HiddenValue::getHiddenValue(info.GetIsolate(), v8History, V8HiddenValue::state(info.GetIsolate())); 885267f701546148b83dfbe1d151cb184385bb5c22Torne (Richard Coles) if (!result.IsEmpty()) { 8906f816c7c76bc45a15e452ade8a34e8af077693eTorne (Richard Coles) v8SetReturnValue(info, cacheState(info.Holder(), result, info.GetIsolate())); 905267f701546148b83dfbe1d151cb184385bb5c22Torne (Richard Coles) return; 915267f701546148b83dfbe1d151cb184385bb5c22Torne (Richard Coles) } 925c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) } 93926b001d589ce2f10facb93dd4b87578ea35a855Torne (Richard Coles) result = event->serializedState()->deserialize(info.GetIsolate()); 94d5428f32f5d1719f774f62e19147104ca245a3abTorne (Richard Coles) V8HiddenValue::setHiddenValue(info.GetIsolate(), v8History, V8HiddenValue::state(info.GetIsolate()), result); 957757ec2eadfa2dd8ac2aeed0a4399e9b07ec38cbBen Murdoch } else { 96926b001d589ce2f10facb93dd4b87578ea35a855Torne (Richard Coles) result = event->serializedState()->deserialize(info.GetIsolate()); 977757ec2eadfa2dd8ac2aeed0a4399e9b07ec38cbBen Murdoch } 985c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) 9906f816c7c76bc45a15e452ade8a34e8af077693eTorne (Richard Coles) v8SetReturnValue(info, cacheState(info.Holder(), result, info.GetIsolate())); 1005c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles)} 1015c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) 102c1847b1379d12d0e05df27436bf19a9b1bf12deaTorne (Richard Coles)} // namespace blink 103