xsession_chooser_linux.cc | Explore in Territory

// Copyright 2019 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.

#ifdef UNSAFE_BUFFERS_BUILD
// TODO(crbug.com/40285824): Remove this and convert code to safer constructs.
#pragma allow_unsafe_buffers
#endif

// This file implements a dialog allowing the user to pick between installed
// X session types. It finds sessions by looking for .desktop files in
// /etc/X11/sessions and in the xsessions folder (if any) in each XDG system
// data directory. (By default, this will be /usr/local/share/xsessions and
// /usr/share/xsessions.) Once the user selects a session, it will be launched
// via /etc/X11/Xsession. There will additionally be an "Xsession" will will
// invoke Xsession without arguments to launch a "default" session based on the
// system's configuration. If no session .desktop files are found, this will be
// the only option present.

#include <gtk/gtk.h>
#include <unistd.h>

#include <map>
#include <memory>
#include <optional>
#include <string>
#include <vector>

#include "base/environment.h"
#include "base/files/file_enumerator.h"
#include "base/files/file_path.h"
#include "base/files/file_util.h"
#include "base/functional/bind.h"
#include "base/functional/callback.h"
#include "base/i18n/icu_util.h"
#include "base/logging.h"
#include "base/message_loop/message_pump_type.h"
#include "base/nix/xdg_util.h"
#include "base/path_service.h"
#include "base/run_loop.h"
#include "base/strings/string_util.h"
#include "base/task/single_thread_task_executor.h"
#include "remoting/base/logging.h"
#include "remoting/base/string_resources.h"
#include "remoting/host/xsession_chooser_ui.inc"
#include "third_party/icu/source/common/unicode/unistr.h"
#include "third_party/icu/source/i18n/unicode/coll.h"
#include "ui/base/glib/scoped_gobject.h"
#include "ui/base/glib/scoped_gsignal.h"
#include "ui/base/l10n/l10n_util.h"

namespace remoting {

namespace {

struct XSession { … };

class SessionDialog { … };

void SessionDialog::OnRowActivated(GtkTreeView* session_list,
                                   GtkTreePath* path,
                                   GtkTreeViewColumn*) { … }

void SessionDialog::OnOkClicked(GtkButton*) { … }

gboolean SessionDialog::OnClose(GtkWidget* dialog, GdkEvent*) { … }

std::optional<XSession> TryLoadSession(base::FilePath path) { … }

std::vector<XSession> CollectXSessions() { … }

void ExecXSession(base::OnceClosure quit_closure, XSession session) { … }

}  // namespace

int XSessionChooserMain() { … }

}  // namespace remoting
chromium/remoting/host/xsession_chooser_linux.cc
