1 /*
2 * Copyright (C) 2010. 2012 Google Inc. All rights reserved.
3 *
4 * Redistribution and use in source and binary forms, with or without
5 * modification, are permitted provided that the following conditions are
6 * met:
7 *
8 * * Redistributions of source code must retain the above copyright
9 * notice, this list of conditions and the following disclaimer.
10 * * Redistributions in binary form must reproduce the above
11 * copyright notice, this list of conditions and the following disclaimer
12 * in the documentation and/or other materials provided with the
13 * distribution.
14 * * Neither the name of Google Inc. nor the names of its
15 * contributors may be used to endorse or promote products derived from
16 * this software without specific prior written permission.
17 *
18 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
19 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
20 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
21 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
22 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
23 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
24 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
25 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
26 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
27 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
28 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
29 */
30
31 #include "config.h"
32 #include "bindings/v8/ActiveDOMCallback.h"
33
34 #include "core/dom/ActiveDOMObject.h"
35 #include "core/dom/ExecutionContext.h"
36 #include "core/workers/WorkerGlobalScope.h"
37
38 namespace WebCore {
39
ActiveDOMCallback(ExecutionContext * context)40 ActiveDOMCallback::ActiveDOMCallback(ExecutionContext* context)
41 : ContextLifecycleObserver(context)
42 {
43 }
44
~ActiveDOMCallback()45 ActiveDOMCallback::~ActiveDOMCallback()
46 {
47 }
48
canInvokeCallback() const49 bool ActiveDOMCallback::canInvokeCallback() const
50 {
51 ExecutionContext* context = executionContext();
52 return context && !context->activeDOMObjectsAreSuspended() && !context->activeDOMObjectsAreStopped();
53 }
54
isScriptControllerTerminating() const55 bool ActiveDOMCallback::isScriptControllerTerminating() const
56 {
57 ExecutionContext* context = executionContext();
58 if (context && context->isWorkerGlobalScope()) {
59 WorkerScriptController* scriptController = toWorkerGlobalScope(context)->script();
60 if (!scriptController || scriptController->isExecutionForbidden() || scriptController->isExecutionTerminating())
61 return true;
62 }
63 return false;
64 }
65
66 } // namespace WebCore
67