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// Copyright 2016 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/settings/on_startup_handler.h"
#include <string>
#include "base/check_op.h"
#include "base/functional/bind.h"
#include "base/functional/callback_helpers.h"
#include "chrome/browser/extensions/settings_api_helpers.h"
#include "chrome/browser/profiles/profile.h"
#include "chrome/browser/ui/webui/settings/settings_utils.h"
#include "content/public/browser/browser_thread.h"
#include "content/public/browser/web_ui.h"
#include "extensions/browser/extension_system.h"
#include "extensions/browser/management_policy.h"
#include "extensions/common/extension.h"
namespace settings {
// static
const char OnStartupHandler::kOnStartupNtpExtensionEventName[] =
"update-ntp-extension";
OnStartupHandler::OnStartupHandler(Profile* profile) : profile_(profile) {
DCHECK(profile);
}
OnStartupHandler::~OnStartupHandler() = default;
void OnStartupHandler::OnJavascriptAllowed() {
extension_registry_observation_.Observe(
extensions::ExtensionRegistry::Get(profile_));
}
void OnStartupHandler::OnJavascriptDisallowed() {
extension_registry_observation_.Reset();
}
void OnStartupHandler::RegisterMessages() {
web_ui()->RegisterMessageCallback(
"getNtpExtension",
base::BindRepeating(&OnStartupHandler::HandleGetNtpExtension,
base::Unretained(this)));
web_ui()->RegisterMessageCallback(
"validateStartupPage",
base::BindRepeating(&OnStartupHandler::HandleValidateStartupPage,
base::Unretained(this)));
}
void OnStartupHandler::OnExtensionUnloaded(
content::BrowserContext* browser_context,
const extensions::Extension* extension,
extensions::UnloadedExtensionReason reason) {
FireWebUIListener(kOnStartupNtpExtensionEventName, GetNtpExtension());
}
void OnStartupHandler::OnExtensionReady(
content::BrowserContext* browser_context,
const extensions::Extension* extension) {
FireWebUIListener(kOnStartupNtpExtensionEventName, GetNtpExtension());
}
base::Value OnStartupHandler::GetNtpExtension() {
const extensions::Extension* ntp_extension =
extensions::GetExtensionOverridingNewTabPage(profile_);
if (!ntp_extension) {
return base::Value();
}
base::Value::Dict dict;
dict.Set("id", ntp_extension->id());
dict.Set("name", ntp_extension->name());
dict.Set("canBeDisabled", !extensions::ExtensionSystem::Get(profile_)
->management_policy()
->MustRemainEnabled(ntp_extension, nullptr));
return base::Value(std::move(dict));
}
void OnStartupHandler::HandleGetNtpExtension(const base::Value::List& args) {
const base::Value& callback_id = args[0];
AllowJavascript();
ResolveJavascriptCallback(callback_id, GetNtpExtension());
}
void OnStartupHandler::HandleValidateStartupPage(
const base::Value::List& args) {
CHECK_EQ(args.size(), 2U);
const base::Value& callback_id = args[0];
const std::string& url_string = args[1].GetString();
AllowJavascript();
bool valid = settings_utils::FixupAndValidateStartupPage(url_string, nullptr);
ResolveJavascriptCallback(callback_id, base::Value(valid));
}
} // namespace settings
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