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[DBus (name="io.Astal.Application")]
public class Astal.Application : Gtk.Application, AstalIO.Application {
private List<Gtk.CssProvider> css_providers = new List<Gtk.CssProvider>();
private SocketService service;
private DBusConnection conn;
private string _instance_name = "astal";
private string socket_path { get; private set; }
/**
* Emitted when a window that has been added using
* [[email protected]_window] changes its visibility .
*/
[DBus (visible=false)]
public signal void window_toggled(Gtk.Window window);
/**
* Get all monitors from [[email protected]].
*/
[DBus (visible=false)]
public List<weak Gdk.Monitor> monitors {
owned get {
var mons = Gdk.Display.get_default().get_monitors();
var list = new List<weak Gdk.Monitor>();
for (var i = 0; i <= mons.get_n_items(); ++i) {
var mon = (Gdk.Monitor)mons.get_item(i);
if (mon != null) {
list.append(mon);
}
}
return list;
}
}
/**
* A unique instance name.
*
* This is the identifier used by the AstalIO package and the CLI.
*/
[DBus (visible=false)]
public string instance_name {
owned get { return _instance_name; }
construct set {
_instance_name = value != null ? value : "astal";
application_id = @"io.Astal.$_instance_name";
}
}
/**
* Windows that has been added to this app using [[email protected]_window].
*/
[DBus (visible=false)]
public List<Gtk.Window> windows {
get { return get_windows(); }
}
private Gtk.Settings settings {
get { return Gtk.Settings.get_default(); }
}
private Gdk.Display display {
get { return Gdk.Display.get_default(); }
}
/**
* Shortcut for [[email protected]:gtk_theme_name]
*/
[DBus (visible=false)]
public string gtk_theme {
owned get { return settings.gtk_theme_name; }
set { settings.gtk_theme_name = value; }
}
/**
* Shortcut for [[email protected]:gtk_icon_theme_name]
*/
[DBus (visible=false)]
public string icon_theme {
owned get { return settings.gtk_icon_theme_name; }
set { settings.gtk_icon_theme_name = value; }
}
/**
* Shortcut for [[email protected]:gtk_cursor_theme_name]
*/
[DBus (visible=false)]
public string cursor_theme {
owned get { return settings.gtk_cursor_theme_name; }
set { settings.gtk_cursor_theme_name = value; }
}
/**
* Remove all [[email protected]] providers.
*/
[DBus (visible=false)]
public void reset_css() {
foreach(var provider in css_providers) {
Gtk.StyleContext.remove_provider_for_display(display, provider);
}
css_providers = new List<Gtk.CssProvider>();
}
/**
* Shortcut for [[email protected]_interactive_debugging].
*/
public void inspector() throws DBusError, IOError {
Gtk.Window.set_interactive_debugging(true);
}
/**
* Get a window by its [[email protected]:name] that has been added to this app
* using [[email protected]_window].
*/
[DBus (visible=false)]
public Gtk.Window? get_window(string name) {
foreach(var win in windows) {
if (win.name == name)
return win;
}
critical("no window with name \"%s\"".printf(name));
return null;
}
/**
* Toggle the visibility of a window by its [[email protected]:name]
* that has been added to this app using [[email protected]_window].
*/
public void toggle_window(string window) throws Error {
var win = get_window(window);
if (win != null) {
win.visible = !win.visible;
} else {
throw new IOError.FAILED("window not found");
}
}
/**
* Add a new [[email protected]] provider.
*
* @param style Css string or a path to a css file.
*/
[DBus (visible=false)]
public void apply_css(string style, bool reset = false) {
var provider = new Gtk.CssProvider();
provider.parsing_error.connect((section, error) => {
critical("CSS Error %s:%zu:%zu: %s\n",
section.get_file()?.get_basename() ?? "",
section.get_start_location().lines + 1,
section.get_start_location().line_chars + 1,
error.message
);
});
if (reset)
reset_css();
if (FileUtils.test(style, FileTest.EXISTS)) {
provider.load_from_path(style);
} else if (style.has_prefix("resource://")) {
provider.load_from_resource(style.replace("resource://", ""));
} else {
provider.load_from_string(style);
}
Gtk.StyleContext.add_provider_for_display(
display, provider, Gtk.STYLE_PROVIDER_PRIORITY_USER);
css_providers.append(provider);
}
/**
* Shortcut for [[email protected]_search_path].
*/
[DBus (visible=false)]
public void add_icons(string? path) {
if (path != null) {
Gtk.IconTheme.get_for_display(display).add_search_path(path);
}
}
/**
* Handler for an incoming request.
*
* @param request Body of the request
* @param conn The connection which expects the response.
*/
[DBus (visible=false)]
public virtual void request(string request, SocketConnection conn) {
AstalIO.write_sock.begin(conn, @"missing response implementation on $application_id");
}
/**
* Attempt to acquire the astal socket for this app identified by its [[email protected]:instance_name].
* If the socket is in use by another app with the same name an [[email protected]_OCCUPIED] is thrown.
*/
[DBus (visible=false)]
public void acquire_socket() throws Error {
string path;
service = AstalIO.acquire_socket(this, out path);
socket_path = path;
Bus.own_name(
BusType.SESSION,
application_id,
BusNameOwnerFlags.NONE,
(conn) => {
try {
this.conn = conn;
conn.register_object("/io/Astal/Application", this);
} catch (Error err) {
critical(err.message);
}
},
() => {},
() => {}
);
}
/**
* Quit and stop the socket if it was acquired.
*/
public new void quit() throws DBusError, IOError {
if (service != null) {
service.stop();
service.close();
}
base.quit();
}
construct {
window_added.connect((window) => {
ulong id1, id2;
id1 = window.notify["visible"].connect(() => window_toggled(window));
id2 = window_removed.connect((removed) => {
if (removed == window) {
window.disconnect(id1);
this.disconnect(id2);
}
});
});
shutdown.connect(() => { try { quit(); } catch(Error err) {} });
Unix.signal_add(1, () => { try { quit(); } catch(Error err) {} }, Priority.HIGH);
Unix.signal_add(2, () => { try { quit(); } catch(Error err) {} }, Priority.HIGH);
Unix.signal_add(15, () => { try { quit(); } catch(Error err) {} }, Priority.HIGH);
}
}
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