Pointer

lib/ui/src/tree.rs

@@ -1,6 +1,19 @@
 use crate::scene::Color;
 use crate::text::{TextSpan, TextStyle, TextWrap};
 
+#[derive(Clone, Copy, Debug, Eq, Hash, PartialEq)]
+pub struct ElementId(u64);
+
+impl ElementId {
+    pub const fn new(raw: u64) -> Self {
+        Self(raw)
+    }
+
+    pub const fn raw(self) -> u64 {
+        self.0
+    }
+}
+
 #[derive(Clone, Copy, Debug, Eq, PartialEq)]
 pub enum FlexDirection {
     Row,
@@ -51,6 +64,7 @@ pub struct Style {
     pub gap: f32,
     pub padding: Edges,
     pub background: Option<Color>,
+    pub pointer_events: bool,
 }
 
 impl Default for Style {
@@ -63,6 +77,7 @@ impl Default for Style {
             gap: 0.0,
             padding: Edges::ZERO,
             background: None,
+            pointer_events: true,
         }
     }
 }
@@ -81,6 +96,7 @@ pub(crate) struct TextNode {
 
 #[derive(Clone, Debug, PartialEq)]
 pub struct Element {
+    pub id: Option<ElementId>,
     pub style: Style,
     pub children: Vec<Element>,
     content: ElementContent,
@@ -89,6 +105,7 @@ pub struct Element {
 impl Element {
     pub fn new() -> Self {
         Self {
+            id: None,
             style: Style::default(),
             children: Vec::new(),
             content: ElementContent::Container,
@@ -101,6 +118,7 @@ impl Element {
 
     pub fn spans(spans: impl IntoIterator<Item = TextSpan>, style: TextStyle) -> Self {
         Self {
+            id: None,
             style: Style::default(),
             children: Vec::new(),
             content: ElementContent::Text(TextNode {
@@ -161,6 +179,16 @@ impl Element {
         self
     }
 
+    pub fn id(mut self, id: ElementId) -> Self {
+        self.id = Some(id);
+        self
+    }
+
+    pub fn pointer_events(mut self, pointer_events: bool) -> Self {
+        self.style.pointer_events = pointer_events;
+        self
+    }
+
     pub fn child(mut self, child: Element) -> Self {
         self.assert_container();
         self.children.push(child);