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|
//! Mouse button related code
use crate::{config::BUTTON_BINDS, conn_info::Connection, debug, WM};
use xcb::{
x::{
ButtonIndex, ButtonPressEvent, Cursor, EventMask, GrabButton, GrabMode, ModMask,
UngrabButton, Window,
},
Xid,
};
impl WM<'_> {
/// Dispatch the given button press event according to [`self::BUTTON_BINDS`]
pub fn handle_button_press(&mut self, e: &ButtonPressEvent) {
let button = match e.detail() {
1 => ButtonIndex::N1,
2 => ButtonIndex::N2,
3 => ButtonIndex::N3,
4 => ButtonIndex::N4,
5 => ButtonIndex::N5,
_ => return,
};
BUTTON_BINDS.dispatch(
self,
button,
ModMask::from_bits_truncate(e.state().bits())
.difference(self.conn.keyboard_state.numlock_mask() | ModMask::LOCK),
);
}
}
pub fn grab(conn: &Connection<'_>, window: Window, focused: bool) {
conn.send_request(&UngrabButton {
button: ButtonIndex::Any,
grab_window: window,
modifiers: ModMask::ANY,
});
if !focused {
conn.send_request(&GrabButton {
button: ButtonIndex::Any,
modifiers: ModMask::ANY,
grab_window: window,
owner_events: false,
event_mask: EventMask::BUTTON_PRESS | EventMask::BUTTON_RELEASE,
pointer_mode: GrabMode::Sync,
keyboard_mode: GrabMode::Sync,
confine_to: Window::none(),
cursor: Cursor::none(),
});
}
for btn in BUTTON_BINDS.binds() {
for modifiers in [
ModMask::empty(),
ModMask::LOCK,
conn.keyboard_state.numlock_mask(),
conn.keyboard_state.numlock_mask() | ModMask::LOCK,
] {
conn.send_request(&GrabButton {
button: btn.button,
modifiers: btn.modifiers | modifiers,
grab_window: window,
owner_events: false,
event_mask: EventMask::BUTTON_PRESS | EventMask::BUTTON_RELEASE,
pointer_mode: GrabMode::Async,
keyboard_mode: GrabMode::Sync,
confine_to: Window::none(),
cursor: Cursor::none(),
});
}
}
}
/// A button bound to some action
pub struct ButtonBind {
pub modifiers: ModMask,
pub button: ButtonIndex,
pub action: &'static dyn Fn(&mut WM<'_>),
}
/// A set of button binds. Currently, there is only one instance of this defined statically: [`crate::config::BUTTONBINDS`].
pub struct ButtonBinds(pub &'static [ButtonBind]);
impl ButtonBinds {
/// Get an iterator over all bound buttons
pub fn binds(&self) -> impl Iterator<Item = &ButtonBind> {
self.0.iter()
}
/// Attempt to run the action for the matching buttonbind, if it exists.
pub fn dispatch(&self, wm: &mut WM<'_>, button: ButtonIndex, modifiers: ModMask) {
debug!("received {modifiers:?} {button:?}");
if let Some(bind) = self
.binds()
.find(|b| b.button == button && modifiers == b.modifiers)
{
debug!("found action");
(bind.action)(wm);
}
}
}
impl std::fmt::Debug for ButtonBind {
fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
f.debug_struct("ButtonBind")
.field("modifiers", &self.modifiers)
.field("button", &self.button)
.finish_non_exhaustive()
}
}
|
