Add more tools for UI tree traversal

crates/bevy_ui/src/accessibility.rs

@@ -1,5 +1,5 @@
 use crate::{
-    experimental::UiChildren,
+    experimental::UiTree,
     prelude::{Button, Label},
     widget::TextUiReader,
     ComputedNode, UiImage,
@@ -66,11 +66,11 @@ fn calc_bounds(
 fn button_changed(
     mut commands: Commands,
     mut query: Query<(Entity, Option<&mut AccessibilityNode>), Changed<Button>>,
-    ui_children: UiChildren,
+    ui_tree: UiTree,
     mut text_reader: TextUiReader,
 ) {
     for (entity, accessible) in &mut query {
-        let name = calc_name(&mut text_reader, ui_children.iter_ui_children(entity));
+        let name = calc_name(&mut text_reader, ui_tree.iter_children(entity));
         if let Some(mut accessible) = accessible {
             accessible.set_role(Role::Button);
             if let Some(name) = name {
@@ -93,11 +93,11 @@ fn button_changed(
 fn image_changed(
     mut commands: Commands,
     mut query: Query<(Entity, Option<&mut AccessibilityNode>), (Changed<UiImage>, Without<Button>)>,
-    ui_children: UiChildren,
+    ui_tree: UiTree,
     mut text_reader: TextUiReader,
 ) {
     for (entity, accessible) in &mut query {
-        let name = calc_name(&mut text_reader, ui_children.iter_ui_children(entity));
+        let name = calc_name(&mut text_reader, ui_tree.iter_children(entity));
         if let Some(mut accessible) = accessible {
             accessible.set_role(Role::Image);
             if let Some(name) = name {

crates/bevy_ui/src/experimental/mod.rs

@@ -12,6 +12,6 @@
 //! Be careful when using these features, especially in concert with third-party crates,
 //! as they may not be fully supported, functional or stable.
 
-mod ghost_hierarchy;
+mod ui_tree;
 
-pub use ghost_hierarchy::*;
+pub use ui_tree::*;