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move launcher window to center when it is resized

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This commit is contained in:
Ashley Wulber 2021-12-28 09:52:05 -05:00
parent 39fe8bbafe
commit 701cfe1ef2
2 changed files with 86 additions and 22 deletions
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87
examples/launcher/window/mod.rs
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@ -1,17 +1,24 @@
mod imp;
use crate::application_row::ApplicationRow;
use crate::ApplicationObject;
use crate::TX;
use gtk4 as gtk;
use postage::prelude::Sink;
use crate::application_row::ApplicationRow;
use crate::X11_CONN;
use gdk4::Rectangle;
use gdk4_x11::X11Display;
use gdk4_x11::X11Surface;
use glib::Object;
use gtk::prelude::*;
use gtk::subclass::prelude::*;
use gtk::{gio, glib};
use gtk::{Application, SignalListItemFactory};
use gtk4 as gtk;
use libcosmic::x;
use postage::prelude::Sink;
use x11rb::connection::Connection;
use x11rb::protocol::xproto;
use x11rb::protocol::xproto::ConnectionExt as OtherConnectionExt;
use x11rb::protocol::xproto::*;
use x11rb::wrapper::ConnectionExt;
glib::wrapper! {
pub struct Window(ObjectSubclass<imp::Window>)
@ -133,15 +140,67 @@ impl Window {
window.connect_realize(move |window| {
if let Some((display, surface)) = x::get_window_x11(window) {
unsafe {
x::change_property(
&display,
&surface,
"_NET_WM_WINDOW_TYPE",
x::PropMode::Replace,
&[x::Atom::new(&display, "_NET_WM_WINDOW_TYPE_DIALOG").unwrap()],
);
}
// ignore all x11 errors...
let xdisplay = display.clone().downcast::<X11Display>().expect("Failed to downgrade X11 Display.");
xdisplay.error_trap_push();
let conn = X11_CONN.get().expect("Failed to get X11 connection");
let window_type_atom = conn.intern_atom(false, b"_NET_WM_WINDOW_TYPE").unwrap().reply().unwrap().atom;
let dock_type_atom = conn.intern_atom(false, b"_NET_WM_WINDOW_TYPE_DOCK").unwrap().reply().unwrap().atom;
conn.change_property32(
PropMode::REPLACE,
surface.xid().try_into().unwrap(),
window_type_atom,
AtomEnum::ATOM,
&[dock_type_atom]
).unwrap();
let resize = glib::clone!(@weak window => move || {
let s = window.surface().expect("Failed to get Surface for Window");
let height = window.height();
let width = window.width();
if let Some((display, _surface)) = x::get_window_x11(&window) {
let monitor = display
.primary_monitor()
.expect("Failed to get Monitor");
let Rectangle {
x: monitor_x,
y: monitor_y,
width: monitor_width,
height: monitor_height,
} = monitor.geometry();
// dbg!(monitor_width);
// dbg!(monitor_height);
// dbg!(width);
// dbg!(height);
let w_conf = xproto::ConfigureWindowAux::default()
.x((monitor_x + monitor_width / 2 - width / 2).clamp(0, monitor_x + monitor_width - 1))
.y((monitor_y + monitor_height / 2 - height / 2).clamp(0, monitor_y + monitor_height - 1));
let conn = X11_CONN.get().expect("Failed to get X11_CONN");
let x11surface = gdk4_x11::X11Surface::xid(
&s.clone().downcast::<X11Surface>()
.expect("Failed to downcast Surface to X11Surface"),
);
conn.configure_window(
x11surface.try_into().expect("Failed to convert XID"),
&w_conf,
)
.expect("failed to configure window...");
conn.flush().expect("failed to flush");
}
});
let s = window.surface().expect("Failed to get Surface for Window");
let resize_height = resize.clone();
s.connect_height_notify(move |_s| {
glib::source::idle_add_local_once(resize_height.clone());
});
let resize_width = resize.clone();
s.connect_width_notify(move |_s| {
glib::source::idle_add_local_once(resize_width.clone());
});
s.connect_scale_factor_notify(move |_s| {
glib::source::idle_add_local_once(resize.clone());
});
} else {
println!("failed to get X11 window");
}