Merge pull request #2211 from zauberzeug/expansion

Make text of `ui.expansion` bindable

nicegui/elements/expansion.py

@@ -1,10 +1,11 @@
 from typing import Any, Callable, Optional
 
 from .mixins.disableable_element import DisableableElement
+from .mixins.text_element import TextElement
 from .mixins.value_element import ValueElement
 
 
-class Expansion(ValueElement, DisableableElement):
+class Expansion(TextElement, ValueElement, DisableableElement):
 
     def __init__(self,
                  text: Optional[str] = None, *,
@@ -21,9 +22,7 @@ class Expansion(ValueElement, DisableableElement):
         :param value: whether the expansion should be opened on creation (default: `False`)
         :param on_value_change: callback to execute when value changes
         """
-        super().__init__(tag='q-expansion-item', value=value, on_value_change=on_value_change)
-        if text is not None:
-            self._props['label'] = text
+        super().__init__(tag='q-expansion-item', text=text, value=value, on_value_change=on_value_change)
         self._props['icon'] = icon
         self._classes.append('nicegui-expansion')
 
@@ -34,3 +33,6 @@ class Expansion(ValueElement, DisableableElement):
     def close(self) -> None:
         """Close the expansion."""
         self.value = False
+
+    def _text_to_model_text(self, text: str) -> None:
+        self._props['label'] = text