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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 GOOGLE 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 GOOGLE 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 "modules/mediastream/MediaStreamTrackSourcesRequestImpl.h"
     28 
     29 #include "core/dom/CrossThreadTask.h"
     30 #include "core/dom/ExecutionContext.h"
     31 #include "modules/mediastream/MediaStreamTrackSourcesCallback.h"
     32 #include "platform/weborigin/SecurityOrigin.h"
     33 #include "public/platform/WebSourceInfo.h"
     34 #include "wtf/Functional.h"
     35 #include "wtf/PassOwnPtr.h"
     36 
     37 namespace blink {
     38 
     39 MediaStreamTrackSourcesRequestImpl* MediaStreamTrackSourcesRequestImpl::create(ExecutionContext& context, MediaStreamTrackSourcesCallback* callback)
     40 {
     41     return new MediaStreamTrackSourcesRequestImpl(context, callback);
     42 }
     43 
     44 MediaStreamTrackSourcesRequestImpl::MediaStreamTrackSourcesRequestImpl(ExecutionContext& context, MediaStreamTrackSourcesCallback* callback)
     45     : m_callback(callback)
     46     , m_executionContext(&context)
     47 {
     48 }
     49 
     50 MediaStreamTrackSourcesRequestImpl::~MediaStreamTrackSourcesRequestImpl()
     51 {
     52 }
     53 
     54 String MediaStreamTrackSourcesRequestImpl::origin()
     55 {
     56     return m_executionContext->securityOrigin()->toString();
     57 }
     58 
     59 void MediaStreamTrackSourcesRequestImpl::requestSucceeded(const WebVector<WebSourceInfo>& webSourceInfos)
     60 {
     61     ASSERT(m_callback);
     62 
     63     for (size_t i = 0; i < webSourceInfos.size(); ++i)
     64         m_sourceInfos.append(SourceInfo::create(webSourceInfos[i]));
     65     m_executionContext->postTask(createCrossThreadTask(&MediaStreamTrackSourcesRequestImpl::performCallback, this));
     66 }
     67 
     68 void MediaStreamTrackSourcesRequestImpl::performCallback()
     69 {
     70     m_callback->handleEvent(m_sourceInfos);
     71     m_callback.clear();
     72 }
     73 
     74 void MediaStreamTrackSourcesRequestImpl::trace(Visitor* visitor)
     75 {
     76     visitor->trace(m_callback);
     77     visitor->trace(m_executionContext);
     78     visitor->trace(m_sourceInfos);
     79     MediaStreamTrackSourcesRequest::trace(visitor);
     80 }
     81 
     82 } // namespace blink
     83