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// Copyright 2012 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "content/browser/media/media_internals_proxy.h"
#include "base/functional/bind.h"
#include "base/location.h"
#include "build/build_config.h"
#include "content/browser/media/media_internals.h"
#include "content/browser/media/media_internals_handler.h"
#include "content/public/browser/browser_task_traits.h"
#include "content/public/browser/browser_thread.h"
namespace content {
MediaInternalsProxy::MediaInternalsProxy() {
}
MediaInternalsProxy::~MediaInternalsProxy() {}
void MediaInternalsProxy::Attach(MediaInternalsMessageHandler* handler) {
DCHECK_CURRENTLY_ON(BrowserThread::UI);
DCHECK(!update_callback_);
update_callback_ =
base::BindRepeating(&MediaInternalsProxy::UpdateUIOnUIThread, handler);
MediaInternals::GetInstance()->AddUpdateCallback(update_callback_);
}
void MediaInternalsProxy::Detach() {
DCHECK_CURRENTLY_ON(BrowserThread::UI);
MediaInternals::GetInstance()->RemoveUpdateCallback(update_callback_);
update_callback_.Reset();
}
void MediaInternalsProxy::GetEverything() {
DCHECK_CURRENTLY_ON(BrowserThread::UI);
MediaInternals::GetInstance()->SendHistoricalMediaEvents();
MediaInternals::GetInstance()->SendGeneralAudioInformation();
#if !BUILDFLAG(IS_ANDROID)
MediaInternals::GetInstance()->SendAudioFocusState();
#endif
MediaInternals::GetInstance()->GetRegisteredCdms();
// Ask MediaInternals for its data on IO thread.
GetIOThreadTaskRunner({})->PostTask(
FROM_HERE,
base::BindOnce(&MediaInternalsProxy::GetEverythingOnIOThread, this));
}
void MediaInternalsProxy::GetEverythingOnIOThread() {
DCHECK_CURRENTLY_ON(BrowserThread::IO);
// TODO(xhwang): Investigate whether we can update on UI thread directly.
MediaInternals::GetInstance()->SendAudioStreamData();
MediaInternals::GetInstance()->SendVideoCaptureDeviceCapabilities();
}
// static
void MediaInternalsProxy::UpdateUIOnUIThread(
MediaInternalsMessageHandler* handler,
const std::u16string& update) {
DCHECK_CURRENTLY_ON(BrowserThread::UI);
handler->OnUpdate(update);
}
} // namespace content
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