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// Copyright 2025 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/ui/waap/waap_ui_metrics_recorder.h"
#include "base/strings/strcat.h"
#include "chrome/browser/profiles/profile.h"
#include "chrome/browser/ui/waap/waap_ui_metrics_service.h"
#include "ui/events/event.h"
#include "ui/events/types/event_type.h"
#include "ui/views/controls/button/button.h" // For Button::STATE_*
namespace {
// Converts a ui::EventType to a ReloadButtonInputType.
// If the event type is not relevant to the ReloadButton, this will fail
// immediately.
WaapUIMetricsRecorder::ReloadButtonInputType ToReloadButtonInputType(
const ui::EventType& type) {
switch (type) {
case ui::EventType::kMouseReleased:
return WaapUIMetricsRecorder::ReloadButtonInputType::kMouseRelease;
case ui::EventType::kKeyPressed:
return WaapUIMetricsRecorder::ReloadButtonInputType::kKeyPress;
default:
NOTREACHED();
}
}
// Returns true if the event type is relevant to the ReloadButton.
bool IsReloadButtonInputType(const ui::EventType& type) {
switch (type) {
case ui::EventType::kMouseReleased:
case ui::EventType::kKeyPressed:
return true;
default:
return false;
}
}
} // namespace
WaapUIMetricsRecorder::WaapUIMetricsRecorder(Profile* profile)
: waap_service_(WaapUIMetricsService::Get(profile)) {}
WaapUIMetricsRecorder::~WaapUIMetricsRecorder() = default;
void WaapUIMetricsRecorder::OnMouseEntered(base::TimeTicks time) {
if (mouse_entered_time_.is_null()) {
mouse_entered_time_ = time;
}
}
void WaapUIMetricsRecorder::OnMouseExited(base::TimeTicks time) {
// The next mouseenter will only happen after this mouseexit.
mouse_entered_time_ = base::TimeTicks();
}
void WaapUIMetricsRecorder::OnMousePressed(base::TimeTicks time) {
// There can be multiple mousepress events before the mouserelease.
// Only the timestamp of the last mousepress is remembered.
mouse_pressed_time_ = time;
}
void WaapUIMetricsRecorder::OnMouseReleased(base::TimeTicks time) {
mouse_pressed_time_ = base::TimeTicks();
}
void WaapUIMetricsRecorder::OnButtonPressedStart(
const ui::Event& event,
ReloadButtonMode current_mode) {
if (!waap_service_ || !IsReloadButtonInputType(event.type())) {
return;
}
auto input_type = ToReloadButtonInputType(event.type());
last_input_info_.emplace(LastInputInfo{
.time = event.time_stamp(),
.type = input_type,
.mode_at_input = current_mode,
});
waap_service_->OnReloadButtonInput(input_type);
}
void WaapUIMetricsRecorder::DidExecuteStopCommand(base::TimeTicks time) {
if (!waap_service_ || !last_input_info_.has_value()) {
return;
}
waap_service_->OnReloadButtonInputToStop(last_input_info_->time, time,
last_input_info_->type);
}
// Called after the Reload command has been executed.
void WaapUIMetricsRecorder::DidExecuteReloadCommand(base::TimeTicks time) {
if (!waap_service_ || !last_input_info_.has_value()) {
return;
}
waap_service_->OnReloadButtonInputToReload(last_input_info_->time, time,
last_input_info_->type);
}
void WaapUIMetricsRecorder::OnChangeVisibleMode(ReloadButtonMode current_mode,
ReloadButtonMode intended_mode,
base::TimeTicks time) {
if (!waap_service_ || current_mode == intended_mode) {
return;
}
pending_mode_change_.emplace(PendingModeChange{
.start_time = time,
.target_mode = intended_mode,
});
}
void WaapUIMetricsRecorder::OnPaint(ReloadButtonMode visible_mode,
int button_state,
base::TimeTicks now) {
static bool is_first_paint_recorded = false;
if (!waap_service_) {
return;
}
// Log first paint metrics.
if (!is_first_paint_recorded) {
is_first_paint_recorded = true;
waap_service_->OnFirstPaint(now);
waap_service_->OnFirstContentfulPaint(now);
}
// Log MousePressToNextPaint.
if (button_state == views::Button::STATE_PRESSED &&
!mouse_pressed_time_.is_null()) {
waap_service_->OnReloadButtonMousePressToNextPaint(mouse_pressed_time_,
now);
mouse_pressed_time_ = base::TimeTicks(); // Reset
}
// Log MouseHoverToNextPaint.
if (button_state == views::Button::STATE_HOVERED &&
!mouse_entered_time_.is_null()) {
waap_service_->OnReloadButtonMouseHoverToNextPaint(mouse_entered_time_,
now);
mouse_entered_time_ = base::TimeTicks(); // Reset
}
// Log InputToNextPaint.
if (last_input_info_.has_value()) {
waap_service_->OnReloadButtonInputToNextPaint(last_input_info_->time, now,
last_input_info_->type);
last_input_info_.reset();
}
// Log ChangeVisibleModeToNextPaint.
if (pending_mode_change_.has_value() &&
visible_mode == pending_mode_change_->target_mode) {
waap_service_->OnReloadButtonChangeVisibleModeToNextPaint(
pending_mode_change_->start_time, now, visible_mode);
pending_mode_change_.reset();
}
}
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