From 2317021a7c4a7296606533d38f1fdce96826f7dc Mon Sep 17 00:00:00 2001
From: Ivan Molodetskikh <yalterz@gmail.com>
Date: Fri, 23 Feb 2024 13:57:56 +0400
Subject: Implement explicit unmapped window state tracking

---
 src/window.rs | 71 +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 71 insertions(+)
 create mode 100644 src/window.rs

(limited to 'src/window.rs')

diff --git a/src/window.rs b/src/window.rs
new file mode 100644
index 00000000..68d1e3a0
--- /dev/null
+++ b/src/window.rs
@@ -0,0 +1,71 @@
+use smithay::desktop::Window;
+use smithay::output::Output;
+
+use crate::layout::workspace::ColumnWidth;
+
+#[derive(Debug)]
+pub struct Unmapped {
+    pub window: Window,
+    pub state: InitialConfigureState,
+}
+
+#[derive(Debug)]
+pub enum InitialConfigureState {
+    /// The window has not been initially configured yet.
+    NotConfigured {
+        /// Whether the window requested to be fullscreened, and the requested output, if any.
+        wants_fullscreen: Option<Option<Output>>,
+    },
+    /// The window has been configured.
+    Configured {
+        /// Up-to-date rules.
+        ///
+        /// We start tracking window rules when sending the initial configure, since they don't
+        /// affect anything before that.
+        rules: ResolvedWindowRules,
+
+        /// Resolved default width for this window.
+        ///
+        /// `None` means that the window will pick its own width.
+        width: Option<ColumnWidth>,
+
+        /// Output to open this window on.
+        ///
+        /// This can be `None` in cases like:
+        ///
+        /// - There are no outputs connected.
+        /// - This is a dialog with a parent, and there was no explicit output set, so this dialog
+        ///   should fetch the parent's current output again upon mapping.
+        output: Option<Output>,
+    },
+}
+
+/// Rules fully resolved for a window.
+#[derive(Debug, Default)]
+pub struct ResolvedWindowRules {
+    /// Default width for this window.
+    ///
+    /// - `None`: unset (global default should be used).
+    /// - `Some(None)`: set to empty (window picks its own width).
+    /// - `Some(Some(width))`: set to a particular width.
+    pub default_width: Option<Option<ColumnWidth>>,
+
+    /// Output to open this window on.
+    pub open_on_output: Option<String>,
+}
+
+impl Unmapped {
+    /// Wraps a newly created window that hasn't been initially configured yet.
+    pub fn new(window: Window) -> Self {
+        Self {
+            window,
+            state: InitialConfigureState::NotConfigured {
+                wants_fullscreen: None,
+            },
+        }
+    }
+
+    pub fn needs_initial_configure(&self) -> bool {
+        matches!(self.state, InitialConfigureState::NotConfigured { .. })
+    }
+}
-- 
cgit