diff options
Diffstat (limited to '')
| -rw-r--r-- | js/ui/runDialog.js | 256 |
1 files changed, 256 insertions, 0 deletions
diff --git a/js/ui/runDialog.js b/js/ui/runDialog.js new file mode 100644 index 0000000..356a974 --- /dev/null +++ b/js/ui/runDialog.js @@ -0,0 +1,256 @@ +// -*- 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(); + } +}); |