| /* |
| * Copyright (C) 2008, 2009, 2011 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 "third_party/blink/renderer/bindings/core/v8/script_value.h" |
| |
| #include "third_party/blink/renderer/bindings/core/v8/serialization/serialized_script_value_factory.h" |
| #include "third_party/blink/renderer/bindings/core/v8/v8_binding_for_core.h" |
| #include "third_party/blink/renderer/platform/bindings/script_state.h" |
| |
| namespace blink { |
| namespace { |
| |
| v8::Local<v8::Value> ToWorldSafeValue(ScriptState* target_script_state, |
| v8::Local<v8::Value> value) { |
| if (value.IsEmpty() || !value->IsObject()) |
| return value; |
| |
| v8::Local<v8::Context> creation_context = |
| value.As<v8::Object>()->CreationContext(); |
| v8::Isolate* isolate = target_script_state->GetIsolate(); |
| if (&ScriptState::From(creation_context)->World() == |
| &target_script_state->World()) { |
| return value; |
| } |
| |
| v8::Context::Scope target_context_scope(target_script_state->GetContext()); |
| scoped_refptr<SerializedScriptValue> serialized = |
| SerializedScriptValue::SerializeAndSwallowExceptions(isolate, value); |
| return serialized->Deserialize(isolate); |
| } |
| |
| } // namespace |
| |
| v8::Local<v8::Value> ScriptValue::V8Value() const { |
| if (IsEmpty()) |
| return v8::Local<v8::Value>(); |
| |
| DCHECK(GetIsolate()->InContext()); |
| |
| // This is a check to validate that you don't return a ScriptValue to a world |
| // different from the world that created the ScriptValue. |
| // Probably this could be: |
| // if (&script_state_->world() == &DOMWrapperWorld::current(isolate())) |
| // return v8::Local<v8::Value>(); |
| // instead of triggering CHECK. |
| CHECK_EQ(&script_state_->World(), &DOMWrapperWorld::Current(GetIsolate())); |
| return value_->NewLocal(GetIsolate()); |
| } |
| |
| v8::Local<v8::Value> ScriptValue::V8ValueFor( |
| ScriptState* target_script_state) const { |
| if (IsEmpty()) |
| return v8::Local<v8::Value>(); |
| |
| return ToWorldSafeValue(target_script_state, |
| value_->NewLocal(target_script_state->GetIsolate())); |
| } |
| |
| bool ScriptValue::ToString(String& result) const { |
| if (IsEmpty()) |
| return false; |
| |
| ScriptState::Scope scope(script_state_); |
| v8::Local<v8::Value> string = V8Value(); |
| if (string.IsEmpty() || !string->IsString()) |
| return false; |
| result = ToCoreString(v8::Local<v8::String>::Cast(string)); |
| return true; |
| } |
| |
| ScriptValue ScriptValue::CreateNull(ScriptState* script_state) { |
| return ScriptValue(script_state, v8::Null(script_state->GetIsolate())); |
| } |
| |
| } // namespace blink |