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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/ui/webui/whats_new/whats_new_util.h"
#include "base/command_line.h"
#include "base/feature_list.h"
#include "base/location.h"
#include "base/metrics/histogram_functions.h"
#include "base/notreached.h"
#include "chrome/browser/profiles/profile.h"
#include "chrome/browser/ui/ui_features.h"
#include "chrome/common/chrome_switches.h"
#include "chrome/common/chrome_version.h"
#include "chrome/common/pref_names.h"
#include "chrome/common/webui_url_constants.h"
#include "components/prefs/pref_service.h"
#include "net/base/url_util.h"
#include "ui/base/ui_base_features.h"
#include "url/gurl.h"
namespace whats_new {
bool g_is_remote_content_disabled = false;
#if !BUILDFLAG(IS_CHROMEOS)
// For testing purposes, so that WebUI tests run on non-branded
// CQ bots.
BASE_FEATURE(kForceEnabled,
"WhatsNewForceEnabled",
base::FEATURE_DISABLED_BY_DEFAULT);
#endif
bool IsEnabled() {
#if BUILDFLAG(GOOGLE_CHROME_BRANDING) && !BUILDFLAG(IS_CHROMEOS)
return true;
#elif !BUILDFLAG(IS_CHROMEOS)
return base::FeatureList::IsEnabled(whats_new::kForceEnabled);
#else
return false;
#endif
}
void DisableRemoteContentForTests() {
g_is_remote_content_disabled = true;
}
void LogStartupType(StartupType type) {
#if !BUILDFLAG(IS_CHROMEOS)
base::UmaHistogramEnumeration("WhatsNew.StartupType", type);
#endif
}
bool IsRemoteContentDisabled() {
return g_is_remote_content_disabled;
}
bool ShouldShowForState(PrefService* local_state,
bool promotional_tabs_enabled) {
#if BUILDFLAG(IS_CHROMEOS)
return false;
#else
LogStartupType(StartupType::kCalledShouldShow);
if (!promotional_tabs_enabled) {
whats_new::LogStartupType(whats_new::StartupType::kPromotionalTabsDisabled);
return false;
}
if (!local_state ||
!local_state->FindPreference(prefs::kLastWhatsNewVersion)) {
LogStartupType(StartupType::kInvalidState);
return false;
}
// Allow disabling the What's New experience in tests using the standard
// kNoFirstRun switch. This behavior can be overridden using the
// kForceWhatsNew switch for the What's New experience integration tests.
const base::CommandLine* command_line =
base::CommandLine::ForCurrentProcess();
if ((command_line->HasSwitch(switches::kNoFirstRun) &&
!command_line->HasSwitch(switches::kForceWhatsNew)) ||
!IsEnabled()) {
LogStartupType(StartupType::kFeatureDisabled);
return false;
}
int last_version = local_state->GetInteger(prefs::kLastWhatsNewVersion);
// Don't show What's New if it's already been shown for the current major
// milestone.
if (CHROME_VERSION_MAJOR <= last_version) {
LogStartupType(StartupType::kAlreadyShown);
return false;
}
// Set the last version here to indicate that What's New should not attempt
// to display again for this milestone. This prevents the page from
// potentially displaying multiple times in a given milestone, e.g. for
// multiple profile relaunches (see https://crbug.com/1274313).
local_state->SetInteger(prefs::kLastWhatsNewVersion, CHROME_VERSION_MAJOR);
return true;
#endif
}
GURL GetWebUIStartupURL() {
#if !BUILDFLAG(IS_CHROMEOS)
return net::AppendQueryParameter(GURL(chrome::kChromeUIWhatsNewURL), "auto",
"true");
#else
NOTREACHED();
#endif
}
} // namespace whats_new
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