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      1 /*
      2  * Copyright (C) 2012 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 INC. AND ITS CONTRIBUTORS ``AS IS'' AND ANY
     14  * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
     15  * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
     16  * DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR ITS CONTRIBUTORS BE LIABLE FOR ANY
     17  * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
     18  * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
     19  * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
     20  * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
     21  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
     22  * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
     23  */
     24 
     25 #include "config.h"
     26 
     27 #include "modules/mediastream/RTCStatsRequestImpl.h"
     28 
     29 #include "modules/mediastream/MediaStreamTrack.h"
     30 #include "modules/mediastream/RTCStatsCallback.h"
     31 
     32 namespace WebCore {
     33 
     34 PassRefPtr<RTCStatsRequestImpl> RTCStatsRequestImpl::create(ExecutionContext* context, PassOwnPtr<RTCStatsCallback> callback, PassRefPtr<MediaStreamTrack> selector)
     35 {
     36     RefPtr<RTCStatsRequestImpl> request = adoptRef(new RTCStatsRequestImpl(context, callback, selector));
     37     request->suspendIfNeeded();
     38     return request.release();
     39 }
     40 
     41 RTCStatsRequestImpl::RTCStatsRequestImpl(ExecutionContext* context, PassOwnPtr<RTCStatsCallback> callback, PassRefPtr<MediaStreamTrack> selector)
     42     : ActiveDOMObject(context)
     43     , m_successCallback(callback)
     44     , m_stream(selector ? selector->component()->stream() : 0)
     45     , m_component(selector ? selector->component() : 0)
     46 {
     47 }
     48 
     49 RTCStatsRequestImpl::~RTCStatsRequestImpl()
     50 {
     51 }
     52 
     53 PassRefPtr<RTCStatsResponseBase> RTCStatsRequestImpl::createResponse()
     54 {
     55     return RTCStatsResponse::create();
     56 }
     57 
     58 bool RTCStatsRequestImpl::hasSelector()
     59 {
     60     return m_stream;
     61 }
     62 
     63 MediaStreamDescriptor* RTCStatsRequestImpl::stream()
     64 {
     65     return m_stream.get();
     66 }
     67 
     68 MediaStreamComponent* RTCStatsRequestImpl::component()
     69 {
     70     return m_component.get();
     71 }
     72 
     73 void RTCStatsRequestImpl::requestSucceeded(PassRefPtr<RTCStatsResponseBase> response)
     74 {
     75     if (!m_successCallback)
     76         return;
     77     m_successCallback->handleEvent(static_cast<RTCStatsResponse*>(response.get()));
     78     clear();
     79 }
     80 
     81 void RTCStatsRequestImpl::stop()
     82 {
     83     clear();
     84 }
     85 
     86 void RTCStatsRequestImpl::clear()
     87 {
     88     m_successCallback.clear();
     89 }
     90 
     91 
     92 } // namespace WebCore
     93