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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_handler.h"
#include "base/functional/bind.h"
#include "base/functional/callback_helpers.h"
#include "base/values.h"
#include "content/browser/media/media_internals_proxy.h"
#include "content/public/browser/browser_thread.h"
#include "content/public/browser/render_frame_host.h"
#include "content/public/browser/web_contents.h"
#include "content/public/browser/web_ui.h"
namespace content {
MediaInternalsMessageHandler::MediaInternalsMessageHandler()
: proxy_(new MediaInternalsProxy()),
page_load_complete_(false) {}
MediaInternalsMessageHandler::~MediaInternalsMessageHandler() {
proxy_->Detach();
}
void MediaInternalsMessageHandler::RegisterMessages() {
DCHECK_CURRENTLY_ON(BrowserThread::UI);
proxy_->Attach(this);
web_ui()->RegisterMessageCallback(
"getEverything",
base::BindRepeating(&MediaInternalsMessageHandler::OnGetEverything,
base::Unretained(this)));
}
void MediaInternalsMessageHandler::OnGetEverything(
const base::Value::List& list) {
page_load_complete_ = true;
proxy_->GetEverything();
}
void MediaInternalsMessageHandler::OnUpdate(const std::u16string& update) {
// Don't try to execute JavaScript in a `blink::WebView` that no longer exists
// nor if the chrome://media-internals page hasn't finished loading.
RenderFrameHost* host = web_ui()->GetWebContents()->GetPrimaryMainFrame();
if (host && page_load_complete_)
host->ExecuteJavaScript(update, base::NullCallback());
}
} // namespace content
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