feat(core): 🎸 Added Overlay::of to allow querying the overlay in ev…

…ent callbacks BREAKING CHANGE: 🧨 Removed `Overlay::new_with_handle`, `OverlayCloseHandle` and `OverlayStyle`
RibirX · Aug 20, 2024 · 4fa2a38 · 4fa2a38
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diff --git a/CHANGELOG.md b/CHANGELOG.md
@@ -75,10 +75,12 @@ Please only add new entries below the [Unreleased](#unreleased---releasedate) he
   });
   ```
 
+- **core**: Added `Overlay::of` to allow querying the overlay in event callbacks. (#pr @M-Adoo)
 - **core**: Added `WidgetCtx::query`, `WidgetCtx::query_write`, `WidgetCtx::query_of_widget` and  `WidgetCtx::query_write_of_widget`. (#pr @M-Adoo)
 
 ### Breaking
 
+- **core**: Removed `Overlay::new_with_handle` and `OverlayCloseHandle`. (#pr @M-Adoo)
 - **core**: `GenWidget::gen_widget` no longer requires a `&mut BuildCtx` parameter. (#616 @M-Adoo)
 - **core**: Removed `FullTheme` and `InheritTheme`, now only using `Theme`. Any part of the theme, such as `Palette`, can be directly used to overwrite its corresponding theme component. (#pr @M-Adoo)
 

diff --git a/core/src/builtin_widgets/global_anchor.rs b/core/src/builtin_widgets/global_anchor.rs
@@ -86,6 +86,7 @@ impl<W> FatObj<W> {
   /// Anchor the widget's horizontal position by placing its left edge right to
   /// the left edge of the specified widget (`wid`) with the given relative
   /// pixel value (`relative`).
+  // Todo: Should we control the subscription in the inner part?
   pub fn left_align_to(
     &mut self, wid: &LazyWidgetId, offset: f32, ctx: &BuildCtx,
   ) -> impl Subscription {

diff --git a/core/src/builtin_widgets/theme.rs b/core/src/builtin_widgets/theme.rs
@@ -39,7 +39,7 @@ pub enum Brightness {
 ///
 /// Every descendant widget of the theme can query it or its parts.
 ///
-/// ```
+/// ```no_run
 /// use ribir::prelude::*;
 ///
 /// let w = fn_widget! {

diff --git a/core/src/context/widget_ctx.rs b/core/src/context/widget_ctx.rs
@@ -16,6 +16,10 @@ pub trait WidgetCtx {
   fn widget_id(&self) -> WidgetId;
   /// Return parent of widget of this context.
   fn parent(&self) -> Option<WidgetId>;
+  // Determine if the current widget in the context is an ancestor of `w`.
+  fn ancestor_of(&self, w: WidgetId) -> bool;
+  // Determine if the current widget in the context is an successor of `w`.
+  fn successor_of(&self, w: WidgetId) -> bool;
   /// Return parent of widget `w`.
   fn widget_parent(&self, w: WidgetId) -> Option<WidgetId>;
   /// Return the single child of `widget`.
@@ -98,6 +102,12 @@ impl<T: WidgetCtxImpl> WidgetCtx for T {
   #[inline]
   fn parent(&self) -> Option<WidgetId> { self.id().parent(self.tree()) }
 
+  #[inline]
+  fn ancestor_of(&self, w: WidgetId) -> bool { self.id().ancestor_of(w, self.tree()) }
+
+  #[inline]
+  fn successor_of(&self, w: WidgetId) -> bool { w.ancestor_of(self.id(), self.tree()) }
+
   #[inline]
   fn widget_parent(&self, w: WidgetId) -> Option<WidgetId> { w.parent(self.tree()) }
 

diff --git a/core/src/lib.rs b/core/src/lib.rs
@@ -46,7 +46,7 @@ pub mod prelude {
   #[doc(no_inline)]
   pub use crate::events::*;
   #[doc(no_inline)]
-  pub use crate::overlay::{Overlay, OverlayCloseHandle};
+  pub use crate::overlay::Overlay;
   #[doc(no_inline)]
   pub use crate::pipe::{BoxPipe, FinalChain, MapPipe, ModifiesPipe, Pipe};
   #[doc(no_inline)]