From a24a6e4e3c441389fd7731320f47e61e567e237f Mon Sep 17 00:00:00 2001
From: Ivan Molodetskikh <yalterz@gmail.com>
Date: Fri, 27 Dec 2024 11:20:03 +0300
Subject: Implement is-floating window rule matcher

---
 src/layout/floating.rs  |  1 +
 src/layout/mod.rs       |  4 ++++
 src/layout/scrolling.rs |  1 +
 src/window/mapped.rs    | 14 ++++++++++++++
 src/window/mod.rs       | 21 +++++++++++++++++++++
 5 files changed, 41 insertions(+)

(limited to 'src')

diff --git a/src/layout/floating.rs b/src/layout/floating.rs
index a04c9b94..b3647844 100644
--- a/src/layout/floating.rs
+++ b/src/layout/floating.rs
@@ -1029,6 +1029,7 @@ impl<W: LayoutElement> FloatingSpace<W> {
             let win = tile.window_mut();
 
             win.set_active_in_column(true);
+            win.set_floating(true);
 
             let is_active = is_active && Some(win.id()) == active.as_ref();
             win.set_activated(is_active);
diff --git a/src/layout/mod.rs b/src/layout/mod.rs
index 8f512c3b..2b12c7bb 100644
--- a/src/layout/mod.rs
+++ b/src/layout/mod.rs
@@ -186,6 +186,7 @@ pub trait LayoutElement {
     fn set_offscreen_element_id(&self, id: Option<Id>);
     fn set_activated(&mut self, active: bool);
     fn set_active_in_column(&mut self, active: bool);
+    fn set_floating(&mut self, floating: bool);
     fn set_bounds(&self, bounds: Size<i32, Logical>);
 
     fn configure_intent(&self) -> ConfigureIntent;
@@ -3746,6 +3747,7 @@ impl<W: LayoutElement> Layout<W> {
             let win = move_.tile.window_mut();
 
             win.set_active_in_column(true);
+            win.set_floating(move_.is_floating);
             win.set_activated(true);
 
             win.set_interactive_resize(None);
@@ -4074,6 +4076,8 @@ mod tests {
 
         fn set_active_in_column(&mut self, _active: bool) {}
 
+        fn set_floating(&mut self, _floating: bool) {}
+
         fn is_fullscreen(&self) -> bool {
             false
         }
diff --git a/src/layout/scrolling.rs b/src/layout/scrolling.rs
index 5b13d0c6..5d1b8234 100644
--- a/src/layout/scrolling.rs
+++ b/src/layout/scrolling.rs
@@ -2614,6 +2614,7 @@ impl<W: LayoutElement> ScrollingSpace<W> {
 
                 let active_in_column = col.active_tile_idx == tile_idx;
                 win.set_active_in_column(active_in_column);
+                win.set_floating(false);
 
                 let active = is_active && self.active_column_idx == col_idx && active_in_column;
                 win.set_activated(active);
diff --git a/src/window/mapped.rs b/src/window/mapped.rs
index 022a57a0..75551ef1 100644
--- a/src/window/mapped.rs
+++ b/src/window/mapped.rs
@@ -66,6 +66,9 @@ pub struct Mapped {
     /// Whether this window is the active window in its column.
     is_active_in_column: bool,
 
+    /// Whether this window is floating.
+    is_floating: bool,
+
     /// Buffer to draw instead of the window when it should be blocked out.
     block_out_buffer: RefCell<SolidColorBuffer>,
 
@@ -163,6 +166,7 @@ impl Mapped {
             need_to_recompute_rules: false,
             is_focused: false,
             is_active_in_column: false,
+            is_floating: false,
             block_out_buffer: RefCell::new(SolidColorBuffer::new((0., 0.), [0., 0., 0., 1.])),
             animate_next_configure: false,
             animate_serials: Vec::new(),
@@ -220,6 +224,10 @@ impl Mapped {
         self.is_active_in_column
     }
 
+    pub fn is_floating(&self) -> bool {
+        self.is_floating
+    }
+
     pub fn set_is_focused(&mut self, is_focused: bool) {
         if self.is_focused == is_focused {
             return;
@@ -690,6 +698,12 @@ impl LayoutElement for Mapped {
         self.need_to_recompute_rules |= changed;
     }
 
+    fn set_floating(&mut self, floating: bool) {
+        let changed = self.is_floating != floating;
+        self.is_floating = floating;
+        self.need_to_recompute_rules |= changed;
+    }
+
     fn set_bounds(&self, bounds: Size<i32, Logical>) {
         self.toplevel().with_pending_state(|state| {
             state.bounds = Some(bounds);
diff --git a/src/window/mod.rs b/src/window/mod.rs
index 44d5359e..1cf576df 100644
--- a/src/window/mod.rs
+++ b/src/window/mod.rs
@@ -115,6 +115,21 @@ impl<'a> WindowRef<'a> {
             WindowRef::Mapped(mapped) => mapped.is_active_in_column(),
         }
     }
+
+    pub fn is_floating(self) -> bool {
+        match self {
+            // FIXME: This means you cannot set initial configure rules based on is-floating. I'm
+            // not sure there's a good way to support it, since this matcher makes a cycle with the
+            // open-floating rule.
+            //
+            // That said, I don't think there are a lot of useful initial configure properties you
+            // may want to set through an is-floating matcher? Like, if you're configuring a
+            // specific window to open as floating, you can also set those properties in that same
+            // window rule, rather than relying on a different is-floating rule.
+            WindowRef::Unmapped(_) => false,
+            WindowRef::Mapped(mapped) => mapped.is_floating(),
+        }
+    }
 }
 
 impl ResolvedWindowRules {
@@ -381,5 +396,11 @@ fn window_matches(window: WindowRef, role: &XdgToplevelSurfaceRoleAttributes, m:
         }
     }
 
+    if let Some(is_floating) = m.is_floating {
+        if window.is_floating() != is_floating {
+            return false;
+        }
+    }
+
     true
 }
-- 
cgit