1 files changed, 83 insertions, 0 deletions
diff --git a/Source/WebCore/page/SuspendableTimer.cpp b/Source/WebCore/page/SuspendableTimer.cpp
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+++ b/Source/WebCore/page/SuspendableTimer.cpp
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+/*
+ * Copyright (C) 2008 Apple 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. ``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 COMPUTER, INC. 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 "SuspendableTimer.h"
+
+#include "ScriptExecutionContext.h"
+
+namespace WebCore {
+
+SuspendableTimer::SuspendableTimer(ScriptExecutionContext* context)
+    : ActiveDOMObject(context, this)
+    , m_nextFireInterval(0)
+    , m_repeatInterval(0)
+#if !ASSERT_DISABLED
+    , m_suspended(false)
+#endif
+{
+}
+
+SuspendableTimer::~SuspendableTimer()
+{
+}
+
+bool SuspendableTimer::hasPendingActivity() const
+{
+    return isActive();
+}
+
+void SuspendableTimer::stop()
+{
+    TimerBase::stop();
+}
+
+void SuspendableTimer::suspend(ReasonForSuspension)
+{
+#if !ASSERT_DISABLED
+    ASSERT(!m_suspended);
+    m_suspended = true;
+#endif
+    m_nextFireInterval = nextFireInterval();
+    m_repeatInterval = repeatInterval();
+    TimerBase::stop();
+}
+
+void SuspendableTimer::resume()
+{
+#if !ASSERT_DISABLED
+    ASSERT(m_suspended);
+    m_suspended = false;
+#endif
+    start(m_nextFireInterval, m_repeatInterval);
+}
+
+bool SuspendableTimer::canSuspend() const
+{
+    return true;
+}
+
+} // namespace WebCore