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// Copyright 2013 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "chrome/browser/ui/webui/chromeos/slow_trace_ui.h"
#include <stddef.h>
#include <memory>
#include "base/bind.h"
#include "base/memory/ref_counted_memory.h"
#include "base/strings/string_number_conversions.h"
#include "chrome/browser/profiles/profile.h"
#include "chrome/common/url_constants.h"
#include "components/feedback/tracing_manager.h"
#include "content/public/browser/url_data_source.h"
#include "content/public/browser/web_ui.h"
namespace chromeos {
////////////////////////////////////////////////////////////////////////////////
//
// SlowTraceSource
//
////////////////////////////////////////////////////////////////////////////////
SlowTraceSource::SlowTraceSource() {
}
std::string SlowTraceSource::GetSource() {
return chrome::kChromeUISlowTraceHost;
}
void SlowTraceSource::StartDataRequest(
const std::string& path,
const content::WebContents::Getter& wc_getter,
const content::URLDataSource::GotDataCallback& callback) {
int trace_id = 0;
size_t pos = path.find('#');
TracingManager* manager = TracingManager::Get();
if (!manager ||
pos == std::string::npos ||
!base::StringToInt(path.substr(pos + 1), &trace_id)) {
callback.Run(NULL);
return;
}
manager->GetTraceData(trace_id,
base::Bind(&SlowTraceSource::OnGetTraceData,
base::Unretained(this),
callback));
}
std::string SlowTraceSource::GetMimeType(const std::string& path) {
return "application/zip";
}
SlowTraceSource::~SlowTraceSource() {}
void SlowTraceSource::OnGetTraceData(
const content::URLDataSource::GotDataCallback& callback,
scoped_refptr<base::RefCountedString> trace_data) {
callback.Run(trace_data.get());
}
bool SlowTraceSource::AllowCaching() {
// Should not be cached to reflect dynamically-generated contents that may
// depend on current settings.
return false;
}
////////////////////////////////////////////////////////////////////////////////
//
// SlowTraceController
//
////////////////////////////////////////////////////////////////////////////////
SlowTraceController::SlowTraceController(content::WebUI* web_ui)
: WebUIController(web_ui) {
// Set up the chrome://slow_trace/ source.
content::URLDataSource::Add(Profile::FromWebUI(web_ui),
std::make_unique<SlowTraceSource>());
}
} // namespace chromeos
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