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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/chromeos/first_run/step.h"
#include <cctype>
#include "ash/first_run/first_run_helper.h"
#include "base/memory/scoped_ptr.h"
#include "base/metrics/histogram.h"
#include "chrome/browser/ui/webui/chromeos/first_run/first_run_actor.h"
#include "ui/gfx/geometry/size.h"
#include "ui/views/widget/widget.h"
namespace {
// Converts from "with-dashes-names" to "WithDashesNames".
std::string ToCamelCase(const std::string& name) {
std::string result;
bool next_to_upper = true;
for (size_t i = 0; i < name.length(); ++i) {
if (name[i] == '-') {
next_to_upper = true;
} else if (next_to_upper) {
result.push_back(std::toupper(name[i]));
next_to_upper = false;
} else {
result.push_back(name[i]);
}
}
return result;
}
} // namespace
namespace chromeos {
namespace first_run {
Step::Step(const std::string& name,
ash::FirstRunHelper* shell_helper,
FirstRunActor* actor)
: name_(name),
shell_helper_(shell_helper),
actor_(actor) {
}
Step::~Step() { RecordCompletion(); }
void Step::Show() {
show_time_ = base::Time::Now();
DoShow();
}
void Step::OnBeforeHide() {
actor()->RemoveBackgroundHoles();
DoOnBeforeHide();
}
void Step::OnAfterHide() {
RecordCompletion();
DoOnAfterHide();
}
gfx::Size Step::GetOverlaySize() const {
return shell_helper()->GetOverlayWidget()->GetWindowBoundsInScreen().size();
}
void Step::RecordCompletion() {
if (show_time_.is_null())
return;
std::string histogram_name =
"CrosFirstRun.TimeSpentOnStep" + ToCamelCase(name());
// Equivalent to using UMA_HISTOGRAM_CUSTOM_TIMES with 50 buckets on range
// [100ms, 3 min.]. UMA_HISTOGRAM_CUSTOM_TIMES can not be used here, because
// |histogram_name| is calculated dynamically and changes from call to call.
base::HistogramBase* histogram = base::Histogram::FactoryTimeGet(
histogram_name,
base::TimeDelta::FromMilliseconds(100),
base::TimeDelta::FromMinutes(3),
50,
base::HistogramBase::kUmaTargetedHistogramFlag);
histogram->AddTime(base::Time::Now() - show_time_);
show_time_ = base::Time();
}
} // namespace first_run
} // namespace chromeos
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