Init hot corner pressure

    only bottom left is working

Author: Fireye04

src/input/mod.rs

@@ -2600,15 +2600,43 @@ impl State {
         // contents_under() will return no surface when the hot corner should trigger, so
         // pointer.motion() will set the current focus to None.
         if under.hot_corner && pointer.current_focus().is_none() {
-            if !was_inside_hot_corner
+            // Main pressure constants
+            let dividend = 14.;
+            let pressure_cap = 20;
+            let target = 200;
+
+            if (!was_inside_hot_corner
                 && pointer
                     .with_grab(|_, grab| grab_allows_hot_corner(grab))
                     .unwrap_or(true)
+                && self.niri.hot_corner_pressure >= pressure_cap)
+                || pointer
+                    .with_grab(|_, grab| grab_allows_hot_corner(grab))
+                    .unwrap_or(true)
+                    && self.niri.hot_corner_pressure > target
             {
                 self.niri.layout.toggle_overview();
+                // set to minimum after trigger to avoid re-triggers without exiting
+                self.niri.hot_corner_pressure = i32::MIN;
+                info!("TRIGGERED");
+            }
+
+            // TODO: Only works for bottom-left right now
+
+            let vec = ((event.delta().y - event.delta().x) / dividend) as i32;
+
+            //TODO: Check addition for overflow
+            if vec < pressure_cap {
+                self.niri.hot_corner_pressure += vec;
+            } else {
+                self.niri.hot_corner_pressure += pressure_cap;
+                info!("Max pressure velocity reached");
             }
             self.niri.pointer_inside_hot_corner = true;
+        } else {
+            self.niri.hot_corner_pressure = 0;
         }
+        info!("{}", self.niri.hot_corner_pressure);
 
         // Activate a new confinement if necessary.
         self.niri.maybe_activate_pointer_constraint();

src/niri.rs

@@ -363,6 +363,7 @@ pub struct Niri {
     /// resolution mice.
     pub notified_activity_this_iteration: bool,
     pub pointer_inside_hot_corner: bool,
+    pub hot_corner_pressure: i32,
     pub tablet_cursor_location: Option<Point<f64, Logical>>,
     pub gesture_swipe_3f_cumulative: Option<(f64, f64)>,
     pub overview_scroll_swipe_gesture: ScrollSwipeGesture,
@@ -2768,6 +2769,7 @@ impl Niri {
             pointer_inactivity_timer_got_reset: false,
             notified_activity_this_iteration: false,
             pointer_inside_hot_corner: false,
+            hot_corner_pressure: 0,
             tablet_cursor_location: None,
             gesture_swipe_3f_cumulative: None,
             overview_scroll_swipe_gesture: ScrollSwipeGesture::new(),