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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 "core/platform/mediastream/RTCStatsRequest.h"
     30 #include "modules/mediastream/MediaStreamTrack.h"
     31 #include "modules/mediastream/RTCStatsCallback.h"
     32 #include "modules/mediastream/RTCStatsResponse.h"
     33 
     34 namespace WebCore {
     35 
     36 PassRefPtr<RTCStatsRequestImpl> RTCStatsRequestImpl::create(ScriptExecutionContext* context, PassRefPtr<RTCStatsCallback> callback, PassRefPtr<MediaStreamTrack> selector)
     37 {
     38     RefPtr<RTCStatsRequestImpl> request = adoptRef(new RTCStatsRequestImpl(context, callback, selector));
     39     request->suspendIfNeeded();
     40     return request.release();
     41 }
     42 
     43 RTCStatsRequestImpl::RTCStatsRequestImpl(ScriptExecutionContext* context, PassRefPtr<RTCStatsCallback> callback, PassRefPtr<MediaStreamTrack> selector)
     44     : ActiveDOMObject(context)
     45     , m_successCallback(callback)
     46     , m_stream(selector ? selector->component()->stream() : 0)
     47     , m_component(selector ? selector->component() : 0)
     48 {
     49 }
     50 
     51 RTCStatsRequestImpl::~RTCStatsRequestImpl()
     52 {
     53 }
     54 
     55 PassRefPtr<RTCStatsResponseBase> RTCStatsRequestImpl::createResponse()
     56 {
     57     return RTCStatsResponse::create();
     58 }
     59 
     60 bool RTCStatsRequestImpl::hasSelector()
     61 {
     62     return m_stream;
     63 }
     64 
     65 MediaStreamDescriptor* RTCStatsRequestImpl::stream()
     66 {
     67     return m_stream.get();
     68 }
     69 
     70 MediaStreamComponent* RTCStatsRequestImpl::component()
     71 {
     72     return m_component.get();
     73 }
     74 
     75 void RTCStatsRequestImpl::requestSucceeded(PassRefPtr<RTCStatsResponseBase> response)
     76 {
     77     if (!m_successCallback)
     78         return;
     79     m_successCallback->handleEvent(static_cast<RTCStatsResponse*>(response.get()));
     80     clear();
     81 }
     82 
     83 void RTCStatsRequestImpl::stop()
     84 {
     85     clear();
     86 }
     87 
     88 void RTCStatsRequestImpl::clear()
     89 {
     90     m_successCallback.clear();
     91 }
     92 
     93 
     94 } // namespace WebCore
     95