More text improvements, performance enhancements, input handling, text selection, wl cursors

lib/ui/src/tree.rs

@@ -20,6 +20,13 @@ pub enum FlexDirection {
     Column,
 }
 
+#[derive(Clone, Copy, Debug, Eq, Hash, PartialEq)]
+pub enum CursorIcon {
+    Default,
+    Pointer,
+    Text,
+}
+
 #[derive(Clone, Copy, Debug, PartialEq)]
 pub struct Edges {
     pub top: f32,
@@ -65,6 +72,7 @@ pub struct Style {
     pub padding: Edges,
     pub background: Option<Color>,
     pub pointer_events: bool,
+    pub cursor: Option<CursorIcon>,
 }
 
 impl Default for Style {
@@ -78,6 +86,7 @@ impl Default for Style {
             padding: Edges::ZERO,
             background: None,
             pointer_events: true,
+            cursor: None,
         }
     }
 }
@@ -189,6 +198,11 @@ impl Element {
         self
     }
 
+    pub fn cursor(mut self, cursor: CursorIcon) -> Self {
+        self.style.cursor = Some(cursor);
+        self
+    }
+
     pub fn child(mut self, child: Element) -> Self {
         self.assert_container();
         self.children.push(child);