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// Copyright 2014 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "chrome/browser/metrics/first_web_contents_profiler.h"
#include <memory>
#include <string>
#include "base/check.h"
#include "base/functional/bind.h"
#include "base/location.h"
#include "base/metrics/histogram_functions.h"
#include "base/time/time.h"
#include "chrome/browser/metrics/first_web_contents_profiler_base.h"
#include "chrome/browser/ui/browser_list.h"
#include "components/startup_metric_utils/browser/startup_metric_utils.h"
#include "content/public/browser/navigation_controller.h"
#include "content/public/browser/navigation_entry.h"
#include "content/public/browser/render_process_host.h"
#include "content/public/browser/web_contents.h"
namespace metrics {
namespace {
void RecordFirstWebContentsFinishReason(
StartupProfilingFinishReason finish_reason) {
base::UmaHistogramEnumeration("Startup.FirstWebContents.FinishReason",
finish_reason);
}
class FirstWebContentsProfiler : public FirstWebContentsProfilerBase {
public:
explicit FirstWebContentsProfiler(content::WebContents* web_contents);
FirstWebContentsProfiler(const FirstWebContentsProfiler&) = delete;
FirstWebContentsProfiler& operator=(const FirstWebContentsProfiler&) = delete;
protected:
// FirstWebContentsProfilerBase:
void RecordFinishReason(StartupProfilingFinishReason finish_reason) override;
void RecordNavigationFinished(base::TimeTicks navigation_start) override;
void RecordFirstNonEmptyPaint() override;
bool WasStartupInterrupted() override;
private:
~FirstWebContentsProfiler() override = default;
};
FirstWebContentsProfiler::FirstWebContentsProfiler(
content::WebContents* web_contents)
: FirstWebContentsProfilerBase(web_contents) {
// FirstWebContentsProfiler is created before the main MessageLoop starts
// running. At that time, any visible WebContents should have a pending
// NavigationEntry, i.e. should have dispatched DidStartNavigation() but not
// DidFinishNavigation().
DCHECK(web_contents->GetController().GetPendingEntry());
}
void FirstWebContentsProfiler::RecordFinishReason(
StartupProfilingFinishReason finish_reason) {
RecordFirstWebContentsFinishReason(finish_reason);
}
void FirstWebContentsProfiler::RecordNavigationFinished(
base::TimeTicks navigation_start) {
startup_metric_utils::GetBrowser().RecordFirstWebContentsMainNavigationStart(
navigation_start);
startup_metric_utils::GetBrowser()
.RecordFirstWebContentsMainNavigationFinished(base::TimeTicks::Now());
}
void FirstWebContentsProfiler::RecordFirstNonEmptyPaint() {
startup_metric_utils::GetBrowser().RecordFirstWebContentsNonEmptyPaint(
base::TimeTicks::Now(),
web_contents()->GetPrimaryMainFrame()->GetProcess()->GetLastInitTime());
}
bool FirstWebContentsProfiler::WasStartupInterrupted() {
return startup_metric_utils::GetBrowser().WasMainWindowStartupInterrupted();
}
} // namespace
void BeginFirstWebContentsProfiling() {
content::WebContents* visible_contents = nullptr;
const BrowserList* browser_list = BrowserList::GetInstance();
for (Browser* browser : browser_list->OrderedByActivation()) {
visible_contents =
FirstWebContentsProfilerBase::GetVisibleContents(browser);
if (visible_contents)
break;
}
if (!visible_contents) {
RecordFirstWebContentsFinishReason(
StartupProfilingFinishReason::kAbandonNoInitiallyVisibleContent);
return;
}
// FirstWebContentsProfiler owns itself and is also bound to
// |visible_contents|'s lifetime by observing WebContentsDestroyed().
new FirstWebContentsProfiler(visible_contents);
}
} // namespace metrics
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