diff -r 000000000000 -r 4f2f89ce4247 WebCore/html/TimeRanges.h
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/WebCore/html/TimeRanges.h	Fri Sep 17 09:02:29 2010 +0300
@@ -0,0 +1,113 @@
+/*
+ * Copyright (C) 2007, 2009 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 COMPUTER, 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. 
+ */
+
+#ifndef TimeRanges_h
+#define TimeRanges_h
+
+#include "ExceptionCode.h"
+
+#include <algorithm>
+#include <wtf/PassRefPtr.h>
+#include <wtf/RefCounted.h>
+#include <wtf/Vector.h>
+
+namespace WebCore {
+
+class TimeRanges : public RefCounted<TimeRanges> {
+public:
+    static PassRefPtr<TimeRanges> create() 
+    {
+        return adoptRef(new TimeRanges);
+    }
+    static PassRefPtr<TimeRanges> create(float start, float end)
+    {
+        return adoptRef(new TimeRanges(start, end));
+    }
+
+    PassRefPtr<TimeRanges> copy();
+
+    unsigned length() const { return m_ranges.size(); }
+    float start(unsigned index, ExceptionCode&) const;
+    float end(unsigned index, ExceptionCode&) const;
+    
+    void add(float start, float end);
+    
+    bool contain(float time) const;
+    
+    float nearest(float time) const;
+
+private:
+    TimeRanges() { }
+    TimeRanges(float start, float end);
+    TimeRanges(const TimeRanges&);
+
+    // We consider all the Ranges to be semi-bounded as follow: [start, end[
+    struct Range {
+        Range() { }
+        Range(float start, float end)
+        {
+            m_start = start;
+            m_end = end;
+        }
+        float m_start;
+        float m_end;
+
+        inline bool isPointInRange(float point) const
+        {
+            return m_start <= point && point < m_end;
+        }
+        
+        inline bool isOverlappingRange(const Range& range) const
+        {
+            return isPointInRange(range.m_start) || isPointInRange(range.m_end) || range.isPointInRange(m_start);
+        }
+
+        inline bool isContiguousWithRange(const Range& range) const
+        {
+            return range.m_start == m_end || range.m_end == m_start;
+        }
+        
+        inline Range unionWithOverlappingOrContiguousRange(const Range& range) const
+        {
+            Range ret;
+
+            ret.m_start = std::min(m_start, range.m_start);
+            ret.m_end = std::max(m_end, range.m_end);
+
+            return ret;
+        }
+
+        inline bool isBeforeRange(const Range& range) const
+        {
+            return range.m_start >= m_end;
+        }
+    };
+    
+    Vector<Range> m_ranges;
+};
+
+} // namespace WebCore
+
+#endif