config: add initial-tile-state window rule

jay-config/src/_private/client.rs

@@ -32,7 +32,7 @@ use {
             Transform, VrrMode,
             connector_type::{CON_UNKNOWN, ConnectorType},
         },
-        window::{MatchedWindow, Window, WindowCriterion, WindowMatcher, WindowType},
+        window::{MatchedWindow, TileState, Window, WindowCriterion, WindowMatcher, WindowType},
         xwayland::XScalingMode,
     },
     bincode::Options,
@@ -1708,6 +1708,17 @@ impl ConfigClient {
         });
     }
 
+    pub fn set_window_matcher_initial_tile_state(
+        &self,
+        matcher: WindowMatcher,
+        tile_state: TileState,
+    ) {
+        self.send(&ClientMessage::SetWindowMatcherInitialTileState {
+            matcher,
+            tile_state,
+        });
+    }
+
     pub fn set_window_matcher_latch_handler(
         &self,
         matcher: WindowMatcher,

jay-config/src/_private/ipc.rs

@@ -15,7 +15,7 @@ use {
             ColorSpace, Connector, DrmDevice, Format, GfxApi, TearingMode, TransferFunction,
             Transform, VrrMode, connector_type::ConnectorType,
         },
-        window::{Window, WindowMatcher, WindowType},
+        window::{TileState, Window, WindowMatcher, WindowType},
         xwayland::XScalingMode,
     },
     serde::{Deserialize, Serialize},
@@ -702,6 +702,10 @@ pub enum ClientMessage<'a> {
         matcher: WindowMatcher,
         auto_focus: bool,
     },
+    SetWindowMatcherInitialTileState {
+        matcher: WindowMatcher,
+        tile_state: TileState,
+    },
 }
 
 #[derive(Serialize, Deserialize, Debug)]

jay-config/src/window.rs

@@ -41,6 +41,16 @@ bitflags! {
     }
 }
 
+/// The tile state of a window.
+#[non_exhaustive]
+#[derive(Serialize, Deserialize, Copy, Clone, Debug, Hash, Eq, PartialEq)]
+pub enum TileState {
+    /// The window is tiled.
+    Tiled,
+    /// The window is floating.
+    Floating,
+}
+
 /// A window created by a client.
 ///
 /// This is the same as `XDG_TOPLEVEL | X_WINDOW`.
@@ -306,6 +316,17 @@ impl WindowCriterion<'_> {
     pub fn set_auto_focus(self, auto_focus: bool) {
         self.to_matcher().set_auto_focus(auto_focus);
     }
+
+    /// Sets whether newly mapped windows that match this matcher are mapped tiling or
+    /// floating.
+    ///
+    /// If multiple such window matchers match a window, the used tile state is
+    /// unspecified.
+    ///
+    /// This leaks the matcher.
+    pub fn set_initial_tile_state(self, tile_state: TileState) {
+        self.to_matcher().set_initial_tile_state(tile_state);
+    }
 }
 
 impl WindowMatcher {
@@ -330,6 +351,15 @@ impl WindowMatcher {
     pub fn set_auto_focus(self, auto_focus: bool) {
         get!().set_window_matcher_auto_focus(self, auto_focus);
     }
+
+    /// Sets whether newly mapped windows that match this matcher are mapped tiling or
+    /// floating.
+    ///
+    /// If multiple such window matchers match a window, the used tile state is
+    /// unspecified.
+    pub fn set_initial_tile_state(self, tile_state: TileState) {
+        get!().set_window_matcher_initial_tile_state(self, tile_state);
+    }
 }
 
 impl MatchedWindow {