1 files changed, 63 insertions, 0 deletions
diff --git a/src/javascript/jsc/bindings/webcore/ActiveDOMCallback.cpp b/src/javascript/jsc/bindings/webcore/ActiveDOMCallback.cpp
new file mode 100644
index 000000000..2f7936aef
--- /dev/null
+++ b/src/javascript/jsc/bindings/webcore/ActiveDOMCallback.cpp
@@ -0,0 +1,63 @@
+/*
+ * 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 "ActiveDOMCallback.h"
+
+#include "ScriptExecutionContext.h"
+
+namespace WebCore {
+
+ActiveDOMCallback::ActiveDOMCallback(ScriptExecutionContext* context)
+    : ContextDestructionObserver(context)
+{
+}
+
+ActiveDOMCallback::~ActiveDOMCallback() = default;
+
+bool ActiveDOMCallback::canInvokeCallback() const
+{
+    ScriptExecutionContext* context = scriptExecutionContext();
+    return context && !context->activeDOMObjectsAreSuspended() && !context->activeDOMObjectsAreStopped();
+}
+
+bool ActiveDOMCallback::activeDOMObjectsAreSuspended() const
+{
+    auto* context = scriptExecutionContext();
+    return context && context->activeDOMObjectsAreSuspended();
+}
+
+bool ActiveDOMCallback::activeDOMObjectAreStopped() const
+{
+    auto* context = scriptExecutionContext();
+    return !context || context->activeDOMObjectsAreStopped();
+}
+
+} // namespace WebCore