xref: /external/chromium_org/third_party/WebKit/Source/bindings/core/v8/ActiveDOMCallback.cpp

/*
 * Copyright (C) 2010. 2012 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/ActiveDOMCallback.h"

#include "core/dom/ActiveDOMObject.h"
#include "core/dom/ExecutionContext.h"
#include "core/workers/WorkerGlobalScope.h"

namespace blink {

ActiveDOMCallback::ActiveDOMCallback(ExecutionContext* context)
    : ContextLifecycleObserver(context)
{
}

ActiveDOMCallback::~ActiveDOMCallback()
{
}

bool ActiveDOMCallback::canInvokeCallback() const
{
    ExecutionContext* context = executionContext();
    return context && !context->activeDOMObjectsAreSuspended() && !context->activeDOMObjectsAreStopped();
}

bool ActiveDOMCallback::isScriptControllerTerminating() const
{
    ExecutionContext* context = executionContext();
    if (context && context->isWorkerGlobalScope()) {
        WorkerScriptController* scriptController = toWorkerGlobalScope(context)->script();
        if (!scriptController || scriptController->isExecutionForbidden() || scriptController->isExecutionTerminating())
            return true;
    }
    return false;
}

} // namespace blink