| /* |
| * Copyright (C) 2013 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: |
| * 1. Redistributions of source code must retain the above copyright |
| * notice, this list of conditions and the following disclaimer. |
| * 2. 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. |
| * |
| * THIS SOFTWARE IS PROVIDED BY APPLE INC. AND ITS 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 APPLE INC. OR ITS 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/V8MutationCallback.h" |
| |
| #include "bindings/core/v8/ScriptController.h" |
| #include "bindings/core/v8/V8Binding.h" |
| #include "bindings/core/v8/V8HiddenValue.h" |
| #include "bindings/core/v8/V8MutationObserver.h" |
| #include "bindings/core/v8/V8MutationRecord.h" |
| #include "core/dom/ExecutionContext.h" |
| #include "wtf/Assertions.h" |
| |
| namespace blink { |
| |
| V8MutationCallback::V8MutationCallback(v8::Handle<v8::Function> callback, v8::Handle<v8::Object> owner, ScriptState* scriptState) |
| : ActiveDOMCallback(scriptState->executionContext()) |
| , m_callback(scriptState->isolate(), callback) |
| , m_scriptState(scriptState) |
| { |
| V8HiddenValue::setHiddenValue(scriptState->isolate(), owner, V8HiddenValue::callback(scriptState->isolate()), callback); |
| m_callback.setWeak(this, &setWeakCallback); |
| } |
| |
| void V8MutationCallback::call(const WillBeHeapVector<RefPtrWillBeMember<MutationRecord> >& mutations, MutationObserver* observer) |
| { |
| if (!canInvokeCallback()) |
| return; |
| |
| v8::Isolate* isolate = m_scriptState->isolate(); |
| |
| if (!m_scriptState->contextIsValid()) |
| return; |
| ScriptState::Scope scope(m_scriptState.get()); |
| |
| if (m_callback.isEmpty()) |
| return; |
| v8::Handle<v8::Value> observerHandle = toV8(observer, m_scriptState->context()->Global(), isolate); |
| if (observerHandle.IsEmpty()) { |
| if (!isScriptControllerTerminating()) |
| CRASH(); |
| return; |
| } |
| |
| if (!observerHandle->IsObject()) |
| return; |
| |
| v8::Handle<v8::Object> thisObject = v8::Handle<v8::Object>::Cast(observerHandle); |
| v8::Handle<v8::Value> argv[] = { v8Array(mutations, m_scriptState->context()->Global(), isolate), observerHandle }; |
| |
| v8::TryCatch exceptionCatcher; |
| exceptionCatcher.SetVerbose(true); |
| ScriptController::callFunction(executionContext(), m_callback.newLocal(isolate), thisObject, WTF_ARRAY_LENGTH(argv), argv, isolate); |
| } |
| |
| void V8MutationCallback::setWeakCallback(const v8::WeakCallbackData<v8::Function, V8MutationCallback>& data) |
| { |
| data.GetParameter()->m_callback.clear(); |
| } |
| |
| } // namespace blink |