gnome-shell/js/extensionPrefs/main.js
Didier Roche 9928125e7d extensionPrefs: Switch to D-Bus API to get extension live state
By direclty using the underlying GSetting, whether or not an extension
appears as enabled or disabled currently depends only on whether it is
included in the 'enabled-extensions' list or not.

However this doesn't necessarily reflect the real extension state, as an
extension may be in error state, or enabled via the session mode.

Switch to the extensions D-Bus API to ensure that the list of extensions
and each extension's state correctly reflects the state in gnome-shell.

https://bugzilla.gnome.org/show_bug.cgi?id=789852
2019-07-20 14:17:35 +00:00

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const Gettext = imports.gettext;
const { Gdk, GLib, Gio, GObject, Gtk, Pango } = imports.gi;
const Format = imports.format;
const _ = Gettext.gettext;
const Config = imports.misc.config;
const ExtensionUtils = imports.misc.extensionUtils;
const { loadInterfaceXML } = imports.misc.fileUtils;
const { ExtensionState } = ExtensionUtils;
const GnomeShellIface = loadInterfaceXML('org.gnome.Shell.Extensions');
const GnomeShellProxy = Gio.DBusProxy.makeProxyWrapper(GnomeShellIface);
function stripPrefix(string, prefix) {
if (string.slice(0, prefix.length) == prefix)
return string.slice(prefix.length);
return string;
}
var Application = GObject.registerClass({
GTypeName: 'ExtensionPrefs_Application'
}, class Application extends Gtk.Application {
_init() {
GLib.set_prgname('gnome-shell-extension-prefs');
super._init({
application_id: 'org.gnome.shell.ExtensionPrefs',
flags: Gio.ApplicationFlags.HANDLES_COMMAND_LINE
});
this._startupUuid = null;
this._loaded = false;
this._skipMainWindow = false;
this._shellProxy = null;
}
get shellProxy() {
return this._shellProxy;
}
_showPrefs(uuid) {
let row = this._extensionSelector.get_children().find(c => {
return c.uuid === uuid && c.hasPrefs;
});
if (!row)
return false;
let widget;
try {
widget = row.prefsModule.buildPrefsWidget();
} catch (e) {
widget = this._buildErrorUI(row, e);
}
let dialog = new Gtk.Window({
modal: !this._skipMainWindow,
type_hint: Gdk.WindowTypeHint.DIALOG
});
dialog.set_titlebar(new Gtk.HeaderBar({
show_close_button: true,
title: row.name,
visible: true
}));
if (this._skipMainWindow) {
this.add_window(dialog);
if (this._window)
this._window.destroy();
this._window = dialog;
this._window.window_position = Gtk.WindowPosition.CENTER;
} else {
dialog.transient_for = this._window;
}
dialog.set_default_size(600, 400);
dialog.add(widget);
dialog.show();
}
_buildErrorUI(row, exc) {
let scroll = new Gtk.ScrolledWindow({
hscrollbar_policy: Gtk.PolicyType.NEVER,
propagate_natural_height: true
});
let box = new Gtk.Box({
orientation: Gtk.Orientation.VERTICAL,
spacing: 12,
margin: 100,
margin_bottom: 60
});
scroll.add(box);
let label = new Gtk.Label({
label: '<span size="x-large">%s</span>'.format(_("Somethings gone wrong")),
use_markup: true
});
label.get_style_context().add_class(Gtk.STYLE_CLASS_DIM_LABEL);
box.add(label);
label = new Gtk.Label({
label: _("Were very sorry, but theres been a problem: the settings for this extension cant be displayed. We recommend that you report the issue to the extension authors."),
justify: Gtk.Justification.CENTER,
wrap: true
});
box.add(label);
let expander = new Expander({
label: _("Technical Details"),
margin_top: 12
});
box.add(expander);
let errortext = `${exc}\n\nStack trace:\n${
// Indent stack trace.
exc.stack.split('\n').map(line => ` ${line}`).join('\n')
}`;
let buffer = new Gtk.TextBuffer({ text: errortext });
let textview = new Gtk.TextView({
buffer: buffer,
wrap_mode: Gtk.WrapMode.WORD,
monospace: true,
editable: false,
top_margin: 12,
bottom_margin: 12,
left_margin: 12,
right_margin: 12
});
let toolbar = new Gtk.Toolbar();
let provider = new Gtk.CssProvider();
provider.load_from_data(`* {
border: 0 solid @borders;
border-top-width: 1px;
}`);
toolbar.get_style_context().add_provider(
provider,
Gtk.STYLE_PROVIDER_PRIORITY_APPLICATION
);
let copyButton = new Gtk.ToolButton({
icon_name: 'edit-copy-symbolic',
tooltip_text: _("Copy Error")
});
toolbar.add(copyButton);
copyButton.connect('clicked', w => {
let clipboard = Gtk.Clipboard.get_default(w.get_display());
// markdown for pasting in gitlab issues
let lines = [
`The settings of extension ${row.uuid} had an error:`,
'```',
`${exc}`,
'```',
'',
'Stack trace:',
'```',
exc.stack.replace(/\n$/, ''), // stack without trailing newline
'```',
''
];
clipboard.set_text(lines.join('\n'), -1);
});
let spacing = new Gtk.SeparatorToolItem({ draw: false });
toolbar.add(spacing);
toolbar.child_set_property(spacing, "expand", true);
let urlButton = new Gtk.ToolButton({
label: _("Homepage"),
tooltip_text: _("Visit extension homepage"),
no_show_all: true,
visible: row.url != null
});
toolbar.add(urlButton);
urlButton.connect('clicked', w => {
let context = w.get_display().get_app_launch_context();
Gio.AppInfo.launch_default_for_uri(row.url, context);
});
let expandedBox = new Gtk.Box({
orientation: Gtk.Orientation.VERTICAL
});
expandedBox.add(textview);
expandedBox.add(toolbar);
expander.add(expandedBox);
scroll.show_all();
return scroll;
}
_buildUI() {
this._window = new Gtk.ApplicationWindow({ application: this,
window_position: Gtk.WindowPosition.CENTER });
this._window.set_default_size(800, 500);
this._titlebar = new Gtk.HeaderBar({ show_close_button: true,
title: _("Shell Extensions") });
this._window.set_titlebar(this._titlebar);
let killSwitch = new Gtk.Switch({ valign: Gtk.Align.CENTER });
this._titlebar.pack_end(killSwitch);
this._settings = new Gio.Settings({ schema_id: 'org.gnome.shell' });
this._settings.bind('disable-user-extensions', killSwitch, 'active',
Gio.SettingsBindFlags.DEFAULT |
Gio.SettingsBindFlags.INVERT_BOOLEAN);
this._mainStack = new Gtk.Stack({
transition_type: Gtk.StackTransitionType.CROSSFADE
});
this._window.add(this._mainStack);
let scroll = new Gtk.ScrolledWindow({ hscrollbar_policy: Gtk.PolicyType.NEVER });
this._extensionSelector = new Gtk.ListBox({ selection_mode: Gtk.SelectionMode.NONE });
this._extensionSelector.set_sort_func(this._sortList.bind(this));
this._extensionSelector.set_header_func(this._updateHeader.bind(this));
scroll.add(this._extensionSelector);
this._mainStack.add_named(scroll, 'listing');
this._mainStack.add_named(new EmptyPlaceholder(), 'placeholder');
this._shellProxy = new GnomeShellProxy(Gio.DBus.session, 'org.gnome.Shell', '/org/gnome/Shell');
this._shellProxy.connectSignal('ExtensionStateChanged',
this._onExtensionStateChanged.bind(this));
this._window.show_all();
}
_sortList(row1, row2) {
return row1.name.localeCompare(row2.name);
}
_updateHeader(row, before) {
if (!before || row.get_header())
return;
let sep = new Gtk.Separator({ orientation: Gtk.Orientation.HORIZONTAL });
row.set_header(sep);
}
_findExtensionRow(uuid) {
return this._extensionSelector.get_children().find(c => c.uuid === uuid);
}
_onExtensionStateChanged(proxy, senderName, [uuid, newState]) {
let row = this._findExtensionRow(uuid);
if (row) {
let { state } = ExtensionUtils.deserializeExtension(newState);
if (state == ExtensionState.UNINSTALLED)
row.destroy();
return; // we only deal with new and deleted extensions here
}
this._shellProxy.GetExtensionInfoRemote(uuid, ([serialized]) => {
let extension = ExtensionUtils.deserializeExtension(serialized);
if (!extension)
return;
// check the extension wasn't added in between
if (this._findExtensionRow(uuid) != null)
return;
this._addExtensionRow(extension);
});
}
_scanExtensions() {
this._shellProxy.ListExtensionsRemote(([extensionsMap], e) => {
if (e) {
if (e instanceof Gio.DBusError) {
log(`Failed to connect to shell proxy: ${e}`);
this._mainStack.add_named(new NoShellPlaceholder(), 'noshell');
this._mainStack.visible_child_name = 'noshell';
} else
throw e;
return;
}
for (let uuid in extensionsMap) {
let extension = ExtensionUtils.deserializeExtension(extensionsMap[uuid]);
this._addExtensionRow(extension);
}
this._extensionsLoaded();
});
}
_addExtensionRow(extension) {
let row = new ExtensionRow(extension);
row.prefsButton.connect('clicked', () => {
this._showPrefs(row.uuid);
});
row.show_all();
this._extensionSelector.add(row);
}
_extensionsLoaded() {
if (this._extensionSelector.get_children().length > 0)
this._mainStack.visible_child_name = 'listing';
else
this._mainStack.visible_child_name = 'placeholder';
if (this._startupUuid)
this._showPrefs(this._startupUuid);
this._startupUuid = null;
this._skipMainWindow = false;
this._loaded = true;
}
vfunc_activate() {
this._window.present();
}
vfunc_startup() {
super.vfunc_startup();
this._buildUI();
this._scanExtensions();
}
vfunc_command_line(commandLine) {
this.activate();
let args = commandLine.get_arguments();
if (args.length) {
let uuid = args[0];
this._skipMainWindow = true;
// Strip off "extension:///" prefix which fakes a URI, if it exists
uuid = stripPrefix(uuid, "extension:///");
if (!this._loaded)
this._startupUuid = uuid;
else if (!this._showPrefs(uuid))
this._skipMainWindow = false;
}
return 0;
}
});
var Expander = GObject.registerClass({
Properties: {
'label': GObject.ParamSpec.string(
'label', 'label', 'label',
GObject.ParamFlags.READWRITE,
null
)
}
}, class Expander extends Gtk.Box {
_init(params = {}) {
this._labelText = null;
super._init(Object.assign(params, {
orientation: Gtk.Orientation.VERTICAL,
spacing: 0
}));
this._frame = new Gtk.Frame({
shadow_type: Gtk.ShadowType.IN,
hexpand: true
});
let eventBox = new Gtk.EventBox();
this._frame.add(eventBox);
let hbox = new Gtk.Box({
spacing: 6,
margin: 12
});
eventBox.add(hbox);
this._arrow = new Gtk.Image({
icon_name: 'pan-end-symbolic'
});
hbox.add(this._arrow);
this._label = new Gtk.Label({ label: this._labelText });
hbox.add(this._label);
this._revealer = new Gtk.Revealer();
this._childBin = new Gtk.Frame({
shadow_type: Gtk.ShadowType.IN
});
this._revealer.add(this._childBin);
// Directly chain up to parent for internal children
super.add(this._frame);
super.add(this._revealer);
let provider = new Gtk.CssProvider();
provider.load_from_data('* { border-top-width: 0; }');
this._childBin.get_style_context().add_provider(
provider,
Gtk.STYLE_PROVIDER_PRIORITY_APPLICATION
);
this._gesture = new Gtk.GestureMultiPress({
widget: this._frame,
button: 0,
exclusive: true
});
this._gesture.connect('released', (gesture, nPress) => {
if (nPress == 1)
this._revealer.reveal_child = !this._revealer.reveal_child;
});
this._revealer.connect('notify::reveal-child', () => {
if (this._revealer.reveal_child)
this._arrow.icon_name = 'pan-down-symbolic';
else
this._arrow.icon_name = 'pan-end-symbolic';
});
}
get label() {
return this._labelText;
}
set label(text) {
if (this._labelText == text)
return;
if (this._label)
this._label.label = text;
this._labelText = text;
this.notify('label');
}
add(child) {
// set expanded child
this._childBin.get_children().forEach(c => {
this._childBin.remove(c);
});
if (child)
this._childBin.add(child);
}
});
var EmptyPlaceholder = GObject.registerClass(
class EmptyPlaceholder extends Gtk.Box {
_init() {
super._init({
orientation: Gtk.Orientation.VERTICAL,
spacing: 6,
margin: 32
});
let image = new Gtk.Image({
icon_name: 'application-x-addon-symbolic',
pixel_size: 96,
visible: true,
vexpand: true,
valign: Gtk.Align.END
});
image.get_style_context().add_class(Gtk.STYLE_CLASS_DIM_LABEL);
this.add(image);
let label = new Gtk.Label({
label: `<b><span size="x-large">${_("No Extensions Installed" )}</span></b>`,
use_markup: true,
visible: true
});
label.get_style_context().add_class(Gtk.STYLE_CLASS_DIM_LABEL);
this.add(label);
let appInfo = Gio.DesktopAppInfo.new('org.gnome.Software.desktop');
let desc = new Gtk.Label({
label: _("Extensions can be installed through Software or <a href=\"https://extensions.gnome.org\">extensions.gnome.org</a>."),
use_markup: true,
wrap: true,
justify: Gtk.Justification.CENTER,
visible: true,
max_width_chars: 50,
hexpand: true,
vexpand: (appInfo == null),
halign: Gtk.Align.CENTER,
valign: Gtk.Align.START
});
this.add(desc);
if (appInfo) {
let button = new Gtk.Button({
label: _("Browse in Software"),
image: new Gtk.Image({
icon_name: "org.gnome.Software-symbolic"
}),
always_show_image: true,
margin_top: 12,
visible: true,
halign: Gtk.Align.CENTER,
valign: Gtk.Align.START,
vexpand: true
});
this.add(button);
button.connect('clicked', w => {
let context = w.get_display().get_app_launch_context();
appInfo.launch([], context);
});
}
}
});
var NoShellPlaceholder = GObject.registerClass(
class NoShellPlaceholder extends Gtk.Box {
_init() {
super._init({
orientation: Gtk.Orientation.VERTICAL,
spacing: 12,
margin: 100,
margin_bottom: 60
});
let label = new Gtk.Label({
label: '<span size="x-large">%s</span>'.format(
_("Somethings gone wrong")),
use_markup: true
});
label.get_style_context().add_class(Gtk.STYLE_CLASS_DIM_LABEL);
this.add(label);
label = new Gtk.Label({
label: _("Were very sorry, but it was not possible to get the list of installed extensions. Make sure you are logged into GNOME and try again."),
justify: Gtk.Justification.CENTER,
wrap: true
});
this.add(label);
this.show_all();
}
});
var DescriptionLabel = GObject.registerClass(
class DescriptionLabel extends Gtk.Label {
vfunc_get_preferred_height_for_width(width) {
// Hack: Request the maximum height allowed by the line limit
if (this.lines > 0)
return super.vfunc_get_preferred_height_for_width(0);
return super.vfunc_get_preferred_height_for_width(width);
}
});
var ExtensionRow = GObject.registerClass(
class ExtensionRow extends Gtk.ListBoxRow {
_init(extension) {
super._init();
this._app = Gio.Application.get_default();
this._extension = extension;
this._prefsModule = null;
this._extensionStateChangedId = this._app.shellProxy.connectSignal(
'ExtensionStateChanged', (p, sender, [uuid, newState]) => {
if (this.uuid !== uuid)
return;
this._extension = ExtensionUtils.deserializeExtension(newState);
let state = (this._extension.state == ExtensionState.ENABLED);
this._switch.state = state;
this._switch.sensitive = this._canToggle();
});
this.connect('destroy', this._onDestroy.bind(this));
this._buildUI();
}
get uuid() {
return this._extension.uuid;
}
get name() {
return this._extension.metadata.name;
}
get hasPrefs() {
return this._extension.hasPrefs;
}
get url() {
return this._extension.metadata.url;
}
_onDestroy() {
if (!this._app.shellProxy)
return;
if (this._extensionStateChangedId)
this._app.shellProxy.disconnectSignal(this._extensionStateChangedId);
this._extensionStateChangedId = 0;
}
_buildUI() {
let hbox = new Gtk.Box({ orientation: Gtk.Orientation.HORIZONTAL,
hexpand: true, margin_end: 24, spacing: 24,
margin: 12 });
this.add(hbox);
let vbox = new Gtk.Box({ orientation: Gtk.Orientation.VERTICAL,
spacing: 6, hexpand: true });
hbox.add(vbox);
let name = GLib.markup_escape_text(this.name, -1);
let label = new Gtk.Label({ label: '<b>' + name + '</b>',
use_markup: true,
halign: Gtk.Align.START });
vbox.add(label);
let desc = this._extension.metadata.description.split('\n')[0];
label = new DescriptionLabel({ label: desc, wrap: true, lines: 2,
ellipsize: Pango.EllipsizeMode.END,
xalign: 0, yalign: 0 });
vbox.add(label);
let button = new Gtk.Button({ valign: Gtk.Align.CENTER,
visible: this.hasPrefs,
no_show_all: true });
button.set_image(new Gtk.Image({ icon_name: 'emblem-system-symbolic',
icon_size: Gtk.IconSize.BUTTON,
visible: true }));
button.get_style_context().add_class('circular');
hbox.add(button);
this.prefsButton = button;
this._switch = new Gtk.Switch({
valign: Gtk.Align.CENTER,
sensitive: this._canToggle(),
state: this._extension.state === ExtensionState.ENABLED
});
this._switch.connect('notify::active', () => {
if (this._switch.active)
this._app.shellProxy.EnableExtensionRemote(this.uuid);
else
this._app.shellProxy.DisableExtensionRemote(this.uuid);
});
this._switch.connect('state-set', () => true);
hbox.add(this._switch);
}
_canToggle() {
return this._extension.canChange;
}
get prefsModule() {
if (!this._prefsModule) {
ExtensionUtils.installImporter(this._extension);
// give extension prefs access to their own extension object
ExtensionUtils.getCurrentExtension = () => this._extension;
this._prefsModule = this._extension.imports.prefs;
this._prefsModule.init(this._extension.metadata);
}
return this._prefsModule;
}
});
function initEnvironment() {
// Monkey-patch in a "global" object that fakes some Shell utilities
// that ExtensionUtils depends on.
window.global = {
log(...args) {
print(args.join(', '));
},
logError(s) {
log(`ERROR: ${s}`);
},
userdatadir: GLib.build_filenamev([GLib.get_user_data_dir(), 'gnome-shell'])
};
String.prototype.format = Format.format;
}
function main(argv) {
initEnvironment();
Gettext.bindtextdomain(Config.GETTEXT_PACKAGE, Config.LOCALEDIR);
Gettext.textdomain(Config.GETTEXT_PACKAGE);
new Application().run(argv);
}