feat(core): 🎸 supports Provider to dirty the tree

CHANGELOG.md

@@ -28,6 +28,7 @@ Please only add new entries below the [Unreleased](#unreleased---releasedate) he
 ### Features
 
 - **core**: The `Render::dirty_phase` method has been added to allow widgets to mark only the paint phase as dirty when it is modified. (#689 @M-Adoo)
+- **core**: Supports `Provider` to dirty the tree if it's a state writer. (#pr @M-Adoo)
 - **macros**: Added the `part_reader!` macro to generate a partial reader from a reference of a reader. (#688 @M-Adoo)
 - **macros**: The `simple_declare` now supports the `stateless` meta attribute, `#[simple_declare(stateless)]`. (#688 @M-Adoo)
 

core/src/builtin_widgets/class.rs

@@ -31,9 +31,10 @@
 //! App::run(w).with_app_theme(theme);
 //! ```
 
-use std::hash::Hash;
+use std::{convert::Infallible, hash::Hash};
 
 use data_widget::AnonymousAttacher;
+use ops::box_it::CloneableBoxOp;
 use pipe::PipeNode;
 use smallvec::{SmallVec, smallvec};
 
@@ -186,6 +187,12 @@ impl ProviderSetup for Classes {
     let classes = Box::new(Setup::new(*self)).setup(map);
     Box::new(ClassesRestore { overrides, classes })
   }
+
+  fn unzip(
+    self: Box<Self>,
+  ) -> (Box<dyn ProviderSetup>, DirtyPhase, CloneableBoxOp<'static, ModifyScope, Infallible>) {
+    unreachable!();
+  }
 }
 
 impl<R: StateReader<Value = Classes> + Query> ProviderSetup for ClassesReaderSetup<R> {
@@ -195,6 +202,12 @@ impl<R: StateReader<Value = Classes> + Query> ProviderSetup for ClassesReaderSet
     let classes = Box::new(Setup::from_state(classes)).setup(map);
     Box::new(ClassesRestore { overrides, classes })
   }
+
+  fn unzip(
+    self: Box<Self>,
+  ) -> (Box<dyn ProviderSetup>, DirtyPhase, CloneableBoxOp<'static, ModifyScope, Infallible>) {
+    unreachable!();
+  }
 }
 
 impl ProviderRestore for ClassesRestore {
@@ -271,7 +284,8 @@ impl Class {
   /// };
   /// ```
   pub fn provider(name: ClassName, cls_impl: ClassImpl) -> Provider {
-    Provider::custom(name.type_info(), Box::new(Queryable(cls_impl)))
+    let setup = Setup::custom(name.type_info(), Box::new(Queryable(cls_impl)));
+    Provider::Setup(Box::new(setup))
   }
 
   fn apply_style<'a>(&self, w: Widget<'a>) -> Widget<'a> {
@@ -421,7 +435,7 @@ mod tests {
   }
 
   impl Classes {
-    fn into_provider(self) -> Provider { Provider::Setup(Box::new(Setup::new(self))) }
+    fn into_provider(self) -> Provider { Provider::new(self) }
   }
 
   #[test]

core/src/builtin_widgets/painting_style.rs

@@ -20,10 +20,10 @@ impl<'c> ComposeChild<'c> for PaintingStyleWidget {
     // We need to provide the text style for the children to access.
     let provider = match this.try_into_value() {
       Ok(this) => Provider::new(this.painting_style),
-      Err(this) => {
-        let style = this.map_reader(|w| PartData::from_ref(&w.painting_style));
-        Provider::value_of_state(style)
-      }
+      Err(this) => Provider::value_of_writer(
+        this.map_writer(|w| PartData::from_ref_mut(&mut w.painting_style)),
+        Some(DirtyPhase::LayoutSubtree),
+      ),
     };
 
     Providers::new([provider])