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      1 /*
      2  * Copyright (C) 2013 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
      6  * are met:
      7  * 1. Redistributions of source code must retain the above copyright
      8  *    notice, this list of conditions and the following disclaimer.
      9  * 2. Redistributions in binary form must reproduce the above copyright
     10  *    notice, this list of conditions and the following disclaimer in the
     11  *    documentation and/or other materials provided with the distribution.
     12  *
     13  * THIS SOFTWARE IS PROVIDED BY APPLE COMPUTER, INC. ``AS IS'' AND ANY
     14  * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
     15  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
     16  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL APPLE COMPUTER, INC. OR
     17  * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
     18  * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
     19  * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
     20  * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
     21  * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
     22  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
     23  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
     24  */
     25 
     26 #include "config.h"
     27 #include "core/html/track/vtt/VTTRegionList.h"
     28 
     29 namespace WebCore {
     30 
     31 VTTRegionList::VTTRegionList()
     32 {
     33 }
     34 
     35 unsigned long VTTRegionList::length() const
     36 {
     37     return m_list.size();
     38 }
     39 
     40 VTTRegion* VTTRegionList::item(unsigned index) const
     41 {
     42     if (index < m_list.size())
     43         return m_list[index].get();
     44 
     45     return 0;
     46 }
     47 
     48 VTTRegion* VTTRegionList::getRegionById(const String& id) const
     49 {
     50     if (id.isEmpty())
     51         return 0;
     52 
     53     for (size_t i = 0; i < m_list.size(); ++i) {
     54         if (m_list[i]->id() == id)
     55             return m_list[i].get();
     56     }
     57 
     58     return 0;
     59 }
     60 
     61 void VTTRegionList::add(PassRefPtr<VTTRegion> region)
     62 {
     63     m_list.append(region);
     64 }
     65 
     66 bool VTTRegionList::remove(VTTRegion* region)
     67 {
     68     size_t index = m_list.find(region);
     69     if (index == kNotFound)
     70         return false;
     71 
     72     m_list.remove(index);
     73     return true;
     74 }
     75 
     76 void VTTRegionList::clear()
     77 {
     78     m_list.clear();
     79 }
     80 
     81 } // namespace WebCore
     82