Add trigger_redraw method

puepy/core.py

@@ -138,7 +138,9 @@ def __init__(
         if "id" in kwargs:
             self._element_id = kwargs["id"]
         elif self._page and self._page.application:
-            self._element_id = self._page.application.element_id_generator.get_id_for_element(self)
+            self._element_id = (
+                self._page.application.element_id_generator.get_id_for_element(self)
+            )
         else:
             self._element_id = f"ppauto-{id(self)}"
 
@@ -153,7 +155,9 @@ def __init__(
         if isinstance(parent_component, Component):
             self.parent_component = parent_component
         elif parent_component:
-            raise Exception(f"Unknown parent_component type {type(parent_component)}: {repr(parent_component)}")
+            raise Exception(
+                f"Unknown parent_component type {type(parent_component)}: {repr(parent_component)}"
+            )
         else:
             self.parent_component = None
 
@@ -182,7 +186,9 @@ def _handle_bind(self, kwargs):
             input_type = kwargs.get("type")
             tag_name = self.tag_name.lower()
 
-            if "value" in kwargs and not (tag_name == "input" and input_type == "radio"):
+            if "value" in kwargs and not (
+                tag_name == "input" and input_type == "radio"
+            ):
                 raise Exception("Cannot specify both 'bind' and 'value'")
 
         else:
@@ -556,7 +562,9 @@ def redraw(self):
         if is_server_side:
             old_active_element_id = None
         else:
-            old_active_element_id = self.document.activeElement.id if self.document.activeElement else None
+            old_active_element_id = (
+                self.document.activeElement.id if self.document.activeElement else None
+            )
 
             self.recursive_call("_retain_implicit_attrs")
 
@@ -726,7 +734,9 @@ def _on_state_change(self, context, key, value):
             if key in redraw_rule:
                 self.page.redraw_tag(self)
         else:
-            raise Exception(f"Unknown value for redraw rule: {redraw_rule} (context: {context})")
+            raise Exception(
+                f"Unknown value for redraw rule: {redraw_rule} (context: {context})"
+            )
 
     def insert_slot(self, name="default", **kwargs):
         """
@@ -740,9 +750,17 @@ def insert_slot(self, name="default", **kwargs):
             Slot: The inserted slot object.
         """
         if name in self.slots:
-            self.slots[name].parent = Tag.stack[-1]  # The children will be cleared during redraw, so re-establish
+            self.slots[name].parent = Tag.stack[
+                -1
+            ]  # The children will be cleared during redraw, so re-establish
         else:
-            self.slots[name] = Slot(ref=f"slot={name}", slot_name=name, page=self.page, parent=Tag.stack[-1], **kwargs)
+            self.slots[name] = Slot(
+                ref=f"slot={name}",
+                slot_name=name,
+                page=self.page,
+                parent=Tag.stack[-1],
+                **kwargs,
+            )
         slot = self.slots[name]
         if self.origin:
             slot.origin = self.origin
@@ -780,11 +798,24 @@ def __exit__(self, exc_type, exc_val, exc_tb):
         return False
 
     def __str__(self):
-        return f"{self.component_name or self.__class__.__name__} ({self.ref} {id(self)})"
+        return (
+            f"{self.component_name or self.__class__.__name__} ({self.ref} {id(self)})"
+        )
 
     def __repr__(self):
         return f"<{self}>"
 
+    def trigger_redraw(self):
+        """
+        Triggers a redraw of this component and its children.
+        """
+        if hasattr(self, "page") and self.page:
+            self.page.redraw_tag(self)
+        else:
+            # Fallback: try to redraw self if page is not set
+            if hasattr(self, "redraw_tag"):
+                self.redraw_tag(self)
+
 
 class Page(Component):
     def __init__(self, matched_route=None, application=None, **kwargs):
@@ -877,9 +908,9 @@ def generate_tag(self, tag_name, *children, **kwargs):
             tag_name = tag_name.replace("_", "-")
 
         if tag_name == "insert_slot":
-            print(f"Called t.insert_slot. Did you mean self.insert_slot?")
+            print("Called t.insert_slot. Did you mean self.insert_slot?")
         elif tag_name == "slot":
-            print(f"Called t.slot. Did you mean <component>.slot?")
+            print("Called t.slot. Did you mean <component>.slot?")
 
         parent = Tag.stack[-1] if Tag.stack else None
         parent_component = Tag.component_stack[-1] if Tag.component_stack else None
@@ -896,7 +927,9 @@ def generate_tag(self, tag_name, *children, **kwargs):
             raise Exception("t.generate_tag called without a context")
 
         # Determine ref value
-        ref_part = "__" + (f"{parent.ref}.{tag_name}_{len(parent.children) + 1}").lstrip("_")
+        ref_part = "__" + (
+            f"{parent.ref}.{tag_name}_{len(parent.children) + 1}"
+        ).lstrip("_")
 
         ref = kwargs.pop("ref", ref_part)