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// Copyright 2015 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/downloads_handler.h"
#include "base/functional/bind.h"
#include "base/metrics/user_metrics.h"
#include "base/values.h"
#include "chrome/browser/download/download_prefs.h"
#include "chrome/browser/profiles/profile.h"
#include "chrome/browser/ui/chrome_select_file_policy.h"
#include "chrome/common/pref_names.h"
#include "chrome/grit/generated_resources.h"
#include "components/prefs/pref_service.h"
#include "components/prefs/scoped_user_pref_update.h"
#include "content/public/browser/download_manager.h"
#include "content/public/browser/web_contents.h"
#include "content/public/browser/web_ui.h"
#include "ui/base/l10n/l10n_util.h"
#include "ui/shell_dialogs/selected_file_info.h"
#if BUILDFLAG(IS_CHROMEOS)
#include "chrome/browser/ash/file_manager/path_util.h"
#endif
using base::UserMetricsAction;
namespace settings {
DownloadsHandler::DownloadsHandler(Profile* profile) : profile_(profile) {}
DownloadsHandler::~DownloadsHandler() {
// There may be pending file dialogs, we need to tell them that we've gone
// away so they don't try and call back to us.
if (select_folder_dialog_) {
select_folder_dialog_->ListenerDestroyed();
}
}
void DownloadsHandler::RegisterMessages() {
web_ui()->RegisterMessageCallback(
"initializeDownloads",
base::BindRepeating(&DownloadsHandler::HandleInitialize,
base::Unretained(this)));
web_ui()->RegisterMessageCallback(
"resetAutoOpenFileTypes",
base::BindRepeating(&DownloadsHandler::HandleResetAutoOpenFileTypes,
base::Unretained(this)));
web_ui()->RegisterMessageCallback(
"selectDownloadLocation",
base::BindRepeating(&DownloadsHandler::HandleSelectDownloadLocation,
base::Unretained(this)));
#if BUILDFLAG(IS_CHROMEOS)
web_ui()->RegisterMessageCallback(
"getDownloadLocationText",
base::BindRepeating(&DownloadsHandler::HandleGetDownloadLocationText,
base::Unretained(this)));
#endif
}
void DownloadsHandler::OnJavascriptAllowed() {
pref_registrar_.Init(profile_->GetPrefs());
pref_registrar_.Add(
prefs::kDownloadExtensionsToOpen,
base::BindRepeating(&DownloadsHandler::SendAutoOpenDownloadsToJavascript,
base::Unretained(this)));
}
void DownloadsHandler::OnJavascriptDisallowed() {
pref_registrar_.RemoveAll();
}
void DownloadsHandler::HandleInitialize(const base::Value::List& args) {
AllowJavascript();
SendAutoOpenDownloadsToJavascript();
}
void DownloadsHandler::SendAutoOpenDownloadsToJavascript() {
content::DownloadManager* manager = profile_->GetDownloadManager();
bool auto_open_downloads =
DownloadPrefs::FromDownloadManager(manager)->IsAutoOpenByUserUsed();
FireWebUIListener("auto-open-downloads-changed",
base::Value(auto_open_downloads));
}
void DownloadsHandler::HandleResetAutoOpenFileTypes(
const base::Value::List& args) {
base::RecordAction(UserMetricsAction("Options_ResetAutoOpenFiles"));
content::DownloadManager* manager = profile_->GetDownloadManager();
DownloadPrefs::FromDownloadManager(manager)->ResetAutoOpenByUser();
}
void DownloadsHandler::HandleSelectDownloadLocation(
const base::Value::List& args) {
// Early return if the select folder dialog is already active.
if (select_folder_dialog_) {
return;
}
PrefService* pref_service = profile_->GetPrefs();
select_folder_dialog_ = ui::SelectFileDialog::Create(
this,
std::make_unique<ChromeSelectFilePolicy>(web_ui()->GetWebContents()));
ui::SelectFileDialog::FileTypeInfo info;
info.allowed_paths = ui::SelectFileDialog::FileTypeInfo::NATIVE_PATH;
select_folder_dialog_->SelectFile(
ui::SelectFileDialog::SELECT_FOLDER,
l10n_util::GetStringUTF16(IDS_SETTINGS_DOWNLOAD_LOCATION),
pref_service->GetFilePath(prefs::kDownloadDefaultDirectory), &info, 0,
base::FilePath::StringType(),
web_ui()->GetWebContents()->GetTopLevelNativeWindow(), nullptr);
}
void DownloadsHandler::FileSelected(const ui::SelectedFileInfo& file,
int index) {
select_folder_dialog_ = nullptr;
base::RecordAction(UserMetricsAction("Options_SetDownloadDirectory"));
PrefService* pref_service = profile_->GetPrefs();
pref_service->SetFilePath(prefs::kDownloadDefaultDirectory, file.path());
pref_service->SetFilePath(prefs::kSaveFileDefaultDirectory, file.path());
}
void DownloadsHandler::FileSelectionCanceled() {
select_folder_dialog_ = nullptr;
}
#if BUILDFLAG(IS_CHROMEOS)
void DownloadsHandler::HandleGetDownloadLocationText(
const base::Value::List& args) {
AllowJavascript();
CHECK_EQ(2U, args.size());
const std::string& callback_id = args[0].GetString();
const std::string& path = args[1].GetString();
ResolveJavascriptCallback(
base::Value(callback_id),
base::Value(
file_manager::util::GetPathDisplayTextForSettings(profile_, path)));
}
#endif
} // namespace settings
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