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authorSteve Block <steveblock@google.com>2011-05-13 06:44:40 -0700
committerAndroid (Google) Code Review <android-gerrit@google.com>2011-05-13 06:44:40 -0700
commit08014c20784f3db5df3a89b73cce46037b77eb59 (patch)
tree47749210d31e19e6e2f64036fa8fae2ad693476f /Source/WebCore/xml/XMLHttpRequestProgressEventThrottle.h
parent860220379e56aeb66424861ad602b07ee22b4055 (diff)
parent4c3661f7918f8b3f139f824efb7855bedccb4c94 (diff)
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Merge changes Ide388898,Ic49f367c,I1158a808,Iacb6ca5d,I2100dd3a,I5c1abe54,Ib0ef9902,I31dbc523,I570314b3
* changes: Merge WebKit at r75315: Update WebKit version Merge WebKit at r75315: Add FrameLoaderClient PageCache stubs Merge WebKit at r75315: Stub out AXObjectCache::remove() Merge WebKit at r75315: Fix ImageBuffer Merge WebKit at r75315: Fix PluginData::initPlugins() Merge WebKit at r75315: Fix conflicts Merge WebKit at r75315: Fix Makefiles Merge WebKit at r75315: Move Android-specific WebCore files to Source Merge WebKit at r75315: Initial merge by git.
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+/*
+ * Copyright (C) 2010 Julien Chaffraix <jchaffraix@webkit.org>
+ * All right 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 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.
+ */
+
+#ifndef XMLHttpRequestProgressEventThrottle_h
+#define XMLHttpRequestProgressEventThrottle_h
+
+#include "Timer.h"
+#include "wtf/PassRefPtr.h"
+#include "wtf/Vector.h"
+
+namespace WebCore {
+
+class Event;
+class EventTarget;
+
+enum ProgressEventAction {
+ DoNotFlushProgressEvent,
+ FlushProgressEvent
+};
+
+// This implements the XHR2 progress event dispatching: "dispatch a progress event called progress
+// about every 50ms or for every byte received, whichever is least frequent".
+class XMLHttpRequestProgressEventThrottle : public TimerBase {
+public:
+ XMLHttpRequestProgressEventThrottle(EventTarget*);
+ virtual ~XMLHttpRequestProgressEventThrottle();
+
+ void dispatchProgressEvent(bool lengthComputable, unsigned long long loaded, unsigned long long total);
+ void dispatchEvent(PassRefPtr<Event>, ProgressEventAction = DoNotFlushProgressEvent);
+
+ void suspend();
+ void resume();
+
+ bool suspended() const { return m_suspended; }
+
+private:
+ static const double minimumProgressEventDispatchingIntervalInSeconds;
+
+ virtual void fired();
+ void dispatchPausedEvent();
+ void flushProgressEvent();
+
+ bool hasEventToDispatch() const;
+
+ // Weak pointer to our XMLHttpRequest object as it is the one holding us.
+ EventTarget* m_target;
+
+ bool m_lengthComputable;
+ unsigned long long m_loaded;
+ unsigned long long m_total;
+
+ bool m_suspended;
+ RefPtr<Event> m_pausedEvent;
+};
+
+} // namespace WebCore
+
+#endif // XMLHttpRequestProgressEventThrottle_h