feat: subsurfaces

runtime/src/platform_specific/wayland/subsurface.rs

@@ -0,0 +1,77 @@
+use std::any::Any;
+use std::fmt;
+use std::hash::{Hash, Hasher};
+use std::sync::Arc;
+
+use cctk::sctk::reexports::protocols::xdg::shell::client::xdg_positioner::{
+    Anchor, Gravity,
+};
+use iced_core::layout::Limits;
+use iced_core::window::Id;
+use iced_core::{Element, Point, Rectangle, Size};
+
+/// Subsurface creation details
+#[derive(Debug, Clone)]
+pub struct SctkSubsurfaceSettings {
+    /// XXX must be unique, id of the parent
+    pub parent: Id,
+    /// XXX must be unique, id of the subsurface
+    pub id: Id,
+    /// anchor position of the subsurface
+    pub loc: Point,
+    /// size of the subsurface
+    pub size: Option<Size>,
+    // pub subsurface_view: Option<Arc<dyn Any + Send + Sync>>,
+    /// Z
+    pub z: u32,
+    /// Steal Keyboard focus from parent while open.
+    /// Will not work on a regular window.
+    pub steal_keyboard_focus: bool,
+
+    /// offset of the subsurface from the anchor
+    pub offset: (i32, i32),
+    /// the gravity of the popup
+    pub gravity: Gravity,
+
+    /// input zone
+    /// None results in accepting all input
+    pub input_zone: Option<Rectangle>,
+}
+
+impl Hash for SctkSubsurfaceSettings {
+    fn hash<H: Hasher>(&self, state: &mut H) {
+        self.id.hash(state);
+    }
+}
+
+#[derive(Clone)]
+/// Window Action
+pub enum Action {
+    /// create a window and receive a message with its Id
+    Subsurface {
+        /// subsurface
+        subsurface: SctkSubsurfaceSettings,
+    },
+    /// destroy the subsurface
+    Destroy {
+        /// id of the subsurface
+        id: Id,
+    },
+}
+
+impl fmt::Debug for Action {
+    fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
+        match self {
+            Action::Subsurface { subsurface, .. } => write!(
+                f,
+                "Action::SubsurfaceAction::Subsurface {{ subsurface: {:?} }}",
+                subsurface
+            ),
+            Action::Destroy { id } => write!(
+                f,
+                "Action::SubsurfaceAction::Destroy {{ id: {:?} }}",
+                id
+            ),
+        }
+    }
+}