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-rw-r--r--js/ui/runDialog.js256
1 files changed, 256 insertions, 0 deletions
diff --git a/js/ui/runDialog.js b/js/ui/runDialog.js
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+// -*- mode: js; js-indent-level: 4; indent-tabs-mode: nil -*-
+/* exported RunDialog */
+
+const { Clutter, Gio, GLib, GObject, Meta, Shell, St } = imports.gi;
+
+const Dialog = imports.ui.dialog;
+const Main = imports.ui.main;
+const ModalDialog = imports.ui.modalDialog;
+const ShellEntry = imports.ui.shellEntry;
+const Util = imports.misc.util;
+const History = imports.misc.history;
+
+const HISTORY_KEY = 'command-history';
+
+const LOCKDOWN_SCHEMA = 'org.gnome.desktop.lockdown';
+const DISABLE_COMMAND_LINE_KEY = 'disable-command-line';
+
+const TERMINAL_SCHEMA = 'org.gnome.desktop.default-applications.terminal';
+const EXEC_KEY = 'exec';
+const EXEC_ARG_KEY = 'exec-arg';
+
+var RunDialog = GObject.registerClass(
+class RunDialog extends ModalDialog.ModalDialog {
+ _init() {
+ super._init({
+ styleClass: 'run-dialog',
+ destroyOnClose: false,
+ });
+
+ this._lockdownSettings = new Gio.Settings({ schema_id: LOCKDOWN_SCHEMA });
+ this._terminalSettings = new Gio.Settings({ schema_id: TERMINAL_SCHEMA });
+ global.settings.connect('changed::development-tools', () => {
+ this._enableInternalCommands = global.settings.get_boolean('development-tools');
+ });
+ this._enableInternalCommands = global.settings.get_boolean('development-tools');
+
+ this._internalCommands = {
+ 'lg': () => Main.createLookingGlass().open(),
+
+ 'r': this._restart.bind(this),
+
+ // Developer brain backwards compatibility
+ 'restart': this._restart.bind(this),
+
+ 'debugexit': () => Meta.quit(Meta.ExitCode.ERROR),
+
+ // rt is short for "reload theme"
+ 'rt': () => {
+ Main.reloadThemeResource();
+ Main.loadTheme();
+ },
+
+ 'check_cloexec_fds': () => {
+ Shell.util_check_cloexec_fds();
+ },
+ };
+
+ let title = _('Run a Command');
+
+ let content = new Dialog.MessageDialogContent({ title });
+ this.contentLayout.add_actor(content);
+
+ let entry = new St.Entry({
+ style_class: 'run-dialog-entry',
+ can_focus: true,
+ });
+ ShellEntry.addContextMenu(entry);
+
+ this._entryText = entry.clutter_text;
+ content.add_child(entry);
+ this.setInitialKeyFocus(this._entryText);
+
+ let defaultDescriptionText = _('Press ESC to close');
+
+ this._descriptionLabel = new St.Label({
+ style_class: 'run-dialog-description',
+ text: defaultDescriptionText,
+ });
+ content.add_child(this._descriptionLabel);
+
+ this._commandError = false;
+
+ this._pathCompleter = new Gio.FilenameCompleter();
+
+ this._history = new History.HistoryManager({
+ gsettingsKey: HISTORY_KEY,
+ entry: this._entryText,
+ });
+ this._entryText.connect('activate', o => {
+ this.popModal();
+ this._run(o.get_text(),
+ Clutter.get_current_event().get_state() & Clutter.ModifierType.CONTROL_MASK);
+ if (!this._commandError ||
+ !this.pushModal())
+ this.close();
+ });
+ this._entryText.connect('key-press-event', (o, e) => {
+ let symbol = e.get_key_symbol();
+ if (symbol === Clutter.KEY_Tab) {
+ let text = o.get_text();
+ let prefix;
+ if (text.lastIndexOf(' ') == -1)
+ prefix = text;
+ else
+ prefix = text.substr(text.lastIndexOf(' ') + 1);
+ let postfix = this._getCompletion(prefix);
+ if (postfix != null && postfix.length > 0) {
+ o.insert_text(postfix, -1);
+ o.set_cursor_position(text.length + postfix.length);
+ }
+ return Clutter.EVENT_STOP;
+ }
+ return Clutter.EVENT_PROPAGATE;
+ });
+ this._entryText.connect('text-changed', () => {
+ this._descriptionLabel.set_text(defaultDescriptionText);
+ });
+ }
+
+ vfunc_key_release_event(event) {
+ if (event.keyval === Clutter.KEY_Escape) {
+ this.close();
+ return Clutter.EVENT_STOP;
+ }
+
+ return Clutter.EVENT_PROPAGATE;
+ }
+
+ _getCommandCompletion(text) {
+ function _getCommon(s1, s2) {
+ if (s1 == null)
+ return s2;
+
+ let k = 0;
+ for (; k < s1.length && k < s2.length; k++) {
+ if (s1[k] != s2[k])
+ break;
+ }
+ if (k == 0)
+ return '';
+ return s1.substr(0, k);
+ }
+
+ let paths = GLib.getenv('PATH').split(':');
+ paths.push(GLib.get_home_dir());
+ let someResults = paths.map(path => {
+ let results = [];
+ try {
+ let file = Gio.File.new_for_path(path);
+ let fileEnum = file.enumerate_children('standard::name', Gio.FileQueryInfoFlags.NONE, null);
+ let info;
+ while ((info = fileEnum.next_file(null))) {
+ let name = info.get_name();
+ if (name.slice(0, text.length) == text)
+ results.push(name);
+ }
+ } catch (e) {
+ if (!e.matches(Gio.IOErrorEnum, Gio.IOErrorEnum.NOT_FOUND) &&
+ !e.matches(Gio.IOErrorEnum, Gio.IOErrorEnum.NOT_DIRECTORY))
+ log(e);
+ }
+ return results;
+ });
+ let results = someResults.reduce((a, b) => a.concat(b), []);
+
+ if (!results.length)
+ return null;
+
+ let common = results.reduce(_getCommon, null);
+ return common.substr(text.length);
+ }
+
+ _getCompletion(text) {
+ if (text.includes('/'))
+ return this._pathCompleter.get_completion_suffix(text);
+ else
+ return this._getCommandCompletion(text);
+ }
+
+ _run(input, inTerminal) {
+ let command = input;
+
+ this._history.addItem(input);
+ this._commandError = false;
+ let f;
+ if (this._enableInternalCommands)
+ f = this._internalCommands[input];
+ else
+ f = null;
+ if (f) {
+ f();
+ } else if (input) {
+ try {
+ if (inTerminal) {
+ let exec = this._terminalSettings.get_string(EXEC_KEY);
+ let execArg = this._terminalSettings.get_string(EXEC_ARG_KEY);
+ command = '%s %s %s'.format(exec, execArg, input);
+ }
+ Util.trySpawnCommandLine(command);
+ } catch (e) {
+ // Mmmh, that failed - see if @input matches an existing file
+ let path = null;
+ if (input.charAt(0) == '/') {
+ path = input;
+ } else {
+ if (input.charAt(0) == '~')
+ input = input.slice(1);
+ path = '%s/%s'.format(GLib.get_home_dir(), input);
+ }
+
+ if (GLib.file_test(path, GLib.FileTest.EXISTS)) {
+ let file = Gio.file_new_for_path(path);
+ try {
+ Gio.app_info_launch_default_for_uri(file.get_uri(),
+ global.create_app_launch_context(0, -1));
+ } catch (err) {
+ // The exception from gjs contains an error string like:
+ // Error invoking Gio.app_info_launch_default_for_uri: No application
+ // is registered as handling this file
+ // We are only interested in the part after the first colon.
+ let message = err.message.replace(/[^:]*: *(.+)/, '$1');
+ this._showError(message);
+ }
+ } else {
+ this._showError(e.message);
+ }
+ }
+ }
+ }
+
+ _showError(message) {
+ this._commandError = true;
+ this._descriptionLabel.set_text(message);
+ }
+
+ _restart() {
+ if (Meta.is_wayland_compositor()) {
+ this._showError(_("Restart is not available on Wayland"));
+ return;
+ }
+ this._shouldFadeOut = false;
+ this.close();
+ Meta.restart(_("Restarting…"));
+ }
+
+ open() {
+ this._history.lastItem();
+ this._entryText.set_text('');
+ this._commandError = false;
+
+ if (this._lockdownSettings.get_boolean(DISABLE_COMMAND_LINE_KEY))
+ return;
+
+ super.open();
+ }
+});