Do not sync StaticText.value with the frontend (#7038)

panel/tests/widgets/test_input.py

@@ -228,7 +228,6 @@ def test_literal_input(document, comm):
     with pytest.raises(ValueError):
         literal.value = []
 
-
 def test_static_text(document, comm):
 
     text = StaticText(value='ABC', name='Text:')
@@ -244,6 +243,31 @@ def test_static_text(document, comm):
     text.value = '<b>Text:</b>: ABC'
     assert widget.text == '<b>Text:</b>: ABC'
 
+def test_static_text_no_sync(document, comm):
+    text = StaticText(value='ABC', name='Text:')
+
+    widget = text.get_root(document, comm=comm)
+
+    widget.text = 'CBA'
+    assert text.value == 'ABC'
+
+def test_static_text_empty(document, comm):
+
+    text = StaticText(name='Text:')
+
+    widget = text.get_root(document, comm=comm)
+
+    assert widget.text == '<b>Text:</b>: '
+
+def test_static_text_repr(document, comm):
+
+    text = StaticText(value=StaticText, name='Text:')
+
+    widget = text.get_root(document, comm=comm)
+
+    assert widget.text == '<b>Text:</b>: &lt;class &#x27;panel.widgets.input.StaticText&#x27;&gt;'
+
+
 
 def test_text_input(document, comm):
 

panel/widgets/input.py

@@ -33,7 +33,9 @@
     DatetimePicker as _bkDatetimePicker, TextAreaInput as _bkTextAreaInput,
     TextInput as _BkTextInput,
 )
-from ..util import lazy_load, param_reprs, try_datetime64_to_datetime
+from ..util import (
+    escape, lazy_load, param_reprs, try_datetime64_to_datetime,
+)
 from .base import CompositeWidget, Widget
 
 if TYPE_CHECKING:
@@ -429,7 +431,7 @@ class StaticText(Widget):
     """
 
     value = param.Parameter(default=None, doc="""
-        The current value""")
+        The current value to be displayed.""")
 
     _format: ClassVar[str] = '<b>{title}</b>: {value}'
 
@@ -445,10 +447,22 @@ class StaticText(Widget):
 
     _widget_type: ClassVar[type[Model]] = _BkDiv
 
+    @property
+    def _linked_properties(self) -> tuple[str]:
+        return ()
+
+    def _init_params(self) -> dict[str, Any]:
+        return {
+            k: v for k, v in self.param.values().items()
+            if k in self._synced_params and (v is not None or k == 'value')
+        }
+
     def _process_param_change(self, msg):
         msg = super()._process_param_change(msg)
         if 'text' in msg:
-            text = str(msg.pop('text'))
+            text = msg.pop('text')
+            if not isinstance(text, str):
+                text = escape("" if text is None else str(text))
             partial = self._format.replace('{value}', '').format(title=self.name)
             if self.name:
                 text = self._format.format(title=self.name, value=text.replace(partial, ''))