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// Copyright 2021 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/ash/system_web_apps/system_web_app_background_task.h"
#include "base/functional/bind.h"
#include "base/location.h"
#include "base/memory/weak_ptr.h"
#include "base/metrics/histogram_functions.h"
#include "base/time/time.h"
#include "base/timer/timer.h"
#include "chrome/browser/profiles/profile.h"
#include "content/public/browser/web_contents.h"
#include "third_party/blink/public/common/web_preferences/web_preferences.h"
#include "ui/base/idle/idle.h"
namespace ash {
SystemWebAppBackgroundTask::SystemWebAppBackgroundTask(
Profile* profile,
const SystemWebAppBackgroundTaskInfo& info)
: profile_(profile),
web_contents_(nullptr),
web_app_url_loader_(std::make_unique<webapps::WebAppUrlLoader>()),
timer_(std::make_unique<base::OneShotTimer>()),
url_(info.url),
period_(info.period),
open_immediately_(info.open_immediately),
delegate_(this) {}
SystemWebAppBackgroundTask::~SystemWebAppBackgroundTask() = default;
void SystemWebAppBackgroundTask::StartTask() {
if (open_immediately_ ||
period_ < base::Seconds(kInitialWaitForBackgroundTasksSeconds)) {
timer_->Start(FROM_HERE,
base::Seconds(kInitialWaitForBackgroundTasksSeconds),
base::BindOnce(&SystemWebAppBackgroundTask::MaybeOpenPage,
weak_ptr_factory_.GetWeakPtr()));
state_ = INITIAL_WAIT;
} else if (period_) {
timer_->Start(FROM_HERE, period_.value(),
base::BindOnce(&SystemWebAppBackgroundTask::MaybeOpenPage,
weak_ptr_factory_.GetWeakPtr()));
state_ = WAIT_PERIOD;
}
}
void SystemWebAppBackgroundTask::StopTask() {
timer_.reset();
web_contents_.reset();
}
void SystemWebAppBackgroundTask::MaybeOpenPage() {
ui::IdleState idle_state = ui::CalculateIdleState(kIdleThresholdSeconds);
base::Time now = base::Time::Now();
// Start polling
if (polling_since_time_.is_null()) {
polling_since_time_ = now;
}
base::TimeDelta polling_duration = (now - polling_since_time_);
if (polling_duration < base::Seconds(kIdlePollMaxTimeToWaitSeconds) &&
idle_state == ui::IDLE_STATE_ACTIVE) {
// We've gone through some weird clock adjustment (daylight savings?) that's
// sent us back in time. We don't know what's going on, so zero the polling
// time and stop polling.
if (polling_duration < base::Seconds(0) && period_) {
timer_->Start(FROM_HERE, period_.value(),
base::BindOnce(&SystemWebAppBackgroundTask::MaybeOpenPage,
weak_ptr_factory_.GetWeakPtr()));
state_ = WAIT_PERIOD;
polling_since_time_ = base::Time();
return;
}
// Poll
timer_->Start(FROM_HERE, base::Seconds(kIdlePollIntervalSeconds),
base::BindOnce(&SystemWebAppBackgroundTask::MaybeOpenPage,
weak_ptr_factory_.GetWeakPtr()));
state_ = WAIT_IDLE;
return;
}
if (period_) {
timer_->Start(FROM_HERE, period_.value(),
base::BindOnce(&SystemWebAppBackgroundTask::MaybeOpenPage,
weak_ptr_factory_.GetWeakPtr()));
}
polling_since_time_ = base::Time();
state_ = WAIT_PERIOD;
NavigateBackgroundPage();
}
void SystemWebAppBackgroundTask::CloseDelegate::CloseContents(
content::WebContents* contents) {
task_->CloseWebContents(contents);
}
void SystemWebAppBackgroundTask::CloseWebContents(
content::WebContents* contents) {
DCHECK(contents == web_contents_.get());
web_contents_.reset();
}
void SystemWebAppBackgroundTask::NavigateBackgroundPage() {
if (!web_contents_) {
web_contents_ = content::WebContents::Create(
content::WebContents::CreateParams(profile_));
web_contents_->SetDelegate(&delegate_);
}
timer_activated_count_++;
auto prefs = web_contents_->GetOrCreateWebPreferences();
prefs.allow_scripts_to_close_windows = true;
web_contents_->SetWebPreferences(prefs);
web_app_url_loader_->LoadUrl(
url_, web_contents_.get(),
webapps::WebAppUrlLoader::UrlComparison::kExact,
base::BindOnce(&SystemWebAppBackgroundTask::OnPageReady,
weak_ptr_factory_.GetWeakPtr()));
}
void SystemWebAppBackgroundTask::OnPageReady(
webapps::WebAppUrlLoaderResult result) {
if (result == webapps::WebAppUrlLoaderResult::kUrlLoaded) {
opened_count_++;
}
}
} // namespace ash
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