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[DBus (name = "com.canonical.indicator.keyboard")]
public class Indicator.Keyboard.Service : Object {
private MainLoop loop;
private Settings settings;
private SimpleActionGroup action_group;
private SimpleAction indicator_action;
private MenuModel menu_model;
private Menu sources_menu;
private IBus.Bus ibus;
[DBus (visible = false)]
public Service (bool force) {
Bus.own_name (BusType.SESSION,
"com.canonical.indicator.keyboard",
BusNameOwnerFlags.ALLOW_REPLACEMENT | (force ? BusNameOwnerFlags.REPLACE : 0),
this.handle_bus_acquired,
null,
this.handle_name_lost);
this.settings = new Settings ("org.gnome.desktop.input-sources");
this.settings.changed["current"].connect (this.handle_changed_current);
this.settings.changed["sources"].connect (this.handle_changed_sources);
this.loop = new MainLoop ();
this.loop.run ();
}
[DBus (visible = false)]
private Gtk.StyleContext get_style_context () {
var context = new Gtk.StyleContext ();
context.set_screen (Gdk.Screen.get_default ());
var path = new Gtk.WidgetPath ();
path.append_type (typeof (Gtk.MenuItem));
context.set_path (path);
return context;
}
[DBus (visible = false)]
protected virtual Icon create_icon (string text) {
const int W = 20;
const int H = 20;
const double R = 2.0;
Pango.FontDescription description;
var style = get_style_context ();
var colour = style.get_color (Gtk.StateFlags.NORMAL);
style.get (Gtk.StateFlags.NORMAL, Gtk.STYLE_PROPERTY_FONT, out description);
var surface = new Cairo.ImageSurface (Cairo.Format.ARGB32, W, H);
var context = new Cairo.Context (surface);
context.new_sub_path ();
context.arc (R, R, R, Math.PI, -0.5 * Math.PI);
context.arc (W - R, R, R, -0.5 * Math.PI, 0);
context.arc (W - R, H - R, R, 0, 0.5 * Math.PI);
context.arc (R, H - R, R, 0.5 * Math.PI, Math.PI);
context.close_path ();
context.set_source_rgba (colour.red, colour.green, colour.blue, colour.alpha);
context.set_source_rgba (1.0, 0.0, 0.0, 1.0);
context.fill ();
context.set_operator (Cairo.Operator.CLEAR);
var layout = Pango.cairo_create_layout (context);
layout.set_alignment (Pango.Alignment.CENTER);
layout.set_font_description (description);
layout.set_text (text, -1);
Pango.cairo_update_layout (context, layout);
int width;
int height;
layout.get_pixel_size (out width, out height);
context.translate ((W - width) / 2, (H - height) / 2);
Pango.cairo_layout_path (context, layout);
context.fill ();
return Gdk.pixbuf_get_from_surface (surface, 0, 0, W, H);
}
[DBus (visible = false)]
protected virtual SimpleActionGroup create_action_group (Action root_action) {
var group = new SimpleActionGroup ();
group.insert (root_action);
group.insert (this.settings.create_action ("current"));
var action = new SimpleAction ("map", null);
action.activate.connect (this.handle_activate_map);
group.insert (action);
action = new SimpleAction ("chart", null);
action.activate.connect (this.handle_activate_chart);
group.insert (action);
action = new SimpleAction ("settings", null);
action.activate.connect (this.handle_activate_settings);
group.insert (action);
action = new SimpleAction ("foo", null);
action.activate.connect (this.handle_activate_foo);
group.insert (action);
return group;
}
[DBus (visible = false)]
private void update_indicator_action () {
var current = this.settings.get_uint ("current");
Variant array;
this.settings.get ("sources", "@a(ss)", out array);
if (current < array.n_children ()) {
string type;
string name;
array.get_child (current, "(ss)", out type, out name);
var state = new Variant.parsed ("(%s, '', '', true)", name);
get_indicator_action ().set_state (state);
}
}
[DBus (visible = false)]
private SimpleAction get_indicator_action () {
if (this.indicator_action == null) {
var state = new Variant.parsed ("('', '', '', true)");
this.indicator_action = new SimpleAction.stateful ("indicator", null, state);
update_indicator_action ();
}
return this.indicator_action;
}
[DBus (visible = false)]
public SimpleActionGroup get_action_group () {
if (this.action_group == null) {
this.action_group = create_action_group (get_indicator_action ());
}
return this.action_group;
}
[DBus (visible = false)]
protected virtual MenuModel create_menu_model (MenuModel section_menu) {
var menu = new Menu ();
var submenu = new Menu ();
submenu.append_section (null, section_menu);
var section = new Menu ();
section.append ("Character Map", "indicator.map");
section.append ("Keyboard Layout Chart", "indicator.chart");
section.append ("Text Entry Settings...", "indicator.settings");
section.append ("foo", "indicator.foo");
submenu.append_section (null, section);
var indicator = new MenuItem.submenu ("x", submenu);
indicator.set_attribute ("x-canonical-type", "s", "com.canonical.indicator.root");
indicator.set_detailed_action ("indicator.indicator");
menu.append_item (indicator);
return menu;
}
[DBus (visible = false)]
private IBus.Bus get_ibus () {
if (this.ibus == null) {
IBus.init ();
this.ibus = new IBus.Bus ();
}
return this.ibus;
}
[DBus (visible = false)]
private void update_sources_menu () {
if (this.sources_menu != null) {
var menu = get_sources_menu ();
while (menu.get_n_items () > 0)
menu.remove (0);
VariantIter iter;
string type;
string name;
this.settings.get ("sources", "a(ss)", out iter);
for (var i = 0; iter.next ("(ss)", out type, out name); i++) {
if (type == "xkb") {
var language = Xkl.get_language_name (name);
var country = Xkl.get_country_name (name);
if (language != null && country != null) {
name = @"$language ($country)";
} else if (language != null) {
name = language;
} else if (country != null) {
name = country;
}
}
else if (type == "ibus") {
var ibus = get_ibus ();
string[] names = { name, null };
var engines = ibus.get_engines_by_names (names);
var engine = engines[0];
var longname = engine.longname;
var language = Xkl.get_language_name (engine.language);
var country = Xkl.get_country_name (engine.language);
if (language != null) {
name = @"$language ($longname)";
} else if (country != null) {
name = @"$country ($longname)";
} else {
name = longname;
}
}
var menu_item = new MenuItem (name, "indicator.current");
menu_item.set_attribute (Menu.ATTRIBUTE_TARGET, "u", i);
menu.append_item (menu_item);
}
} else {
get_sources_menu ();
}
}
[DBus (visible = false)]
private Menu get_sources_menu () {
if (this.sources_menu == null) {
this.sources_menu = new Menu ();
update_sources_menu ();
}
return this.sources_menu;
}
[DBus (visible = false)]
public MenuModel get_menu_model () {
if (this.menu_model == null) {
this.menu_model = create_menu_model (get_sources_menu ());
}
return this.menu_model;
}
[DBus (visible = false)]
private void handle_changed_current (string key) {
update_indicator_action ();
}
[DBus (visible = false)]
private void handle_changed_sources (string key) {
update_sources_menu ();
}
[DBus (visible = false)]
private void handle_activate_map (Variant? parameter) {
try {
Process.spawn_command_line_async ("gucharmap");
} catch {
warn_if_reached ();
}
}
[DBus (visible = false)]
private void handle_activate_chart (Variant? parameter) {
var layout = "us";
var current = this.settings.get_uint ("current");
Variant array;
this.settings.get ("sources", "@a(ss)", out array);
if (current < array.n_children ()) {
string type;
string name;
array.get_child (current, "(ss)", out type, out name);
if (type == "xkb") {
layout = name;
}
}
try {
Process.spawn_command_line_async (@"gkbd-keyboard-display -l $layout");
} catch {
warn_if_reached ();
}
}
[DBus (visible = false)]
private void handle_activate_settings (Variant? parameter) {
try {
Process.spawn_command_line_async ("gnome-control-center region layouts");
} catch {
warn_if_reached ();
}
}
[DBus (visible = false)]
private void handle_activate_foo (Variant? parameter) {
var window = new Gtk.Window ();
window.add (new Gtk.Image.from_gicon (create_icon ("US"), Gtk.IconSize.INVALID));
window.show_all ();
}
[DBus (visible = false)]
private void handle_bus_acquired (DBusConnection connection, string name) {
try {
connection.export_action_group ("/com/canonical/indicator/keyboard", get_action_group ());
connection.export_menu_model ("/com/canonical/indicator/keyboard/desktop", get_menu_model ());
} catch {
warn_if_reached ();
}
}
[DBus (visible = false)]
private void handle_name_lost (DBusConnection connection, string name) {
this.loop.quit ();
this.loop = null;
}
[DBus (visible = false)]
public static int main (string[] args) {
Gtk.init (ref args);
new Service ("--force" in args);
return 0;
}
}
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