Ensure variable inputs receive updated env

src/posting/widgets/variable_autocomplete.py

@@ -46,13 +46,11 @@ def __init__(
             classes,
             disabled,
         )
-        self.variable_candidates = variable_candidates
-
-    def on_mount(self) -> None:
-        if self.variable_candidates is None:
-            self.variable_candidates = [
+        if variable_candidates is None:
+            variable_candidates = [
                 DropdownItem(main=f"${variable}") for variable in get_variables()
             ]
+        self.variable_candidates = variable_candidates
 
     def get_candidates(self, target_state: TargetState) -> list[DropdownItem]:
         cursor = target_state.selection.end[1]

src/posting/widgets/variable_input.py

@@ -1,6 +1,10 @@
+from textual import on
+from textual.widgets import Input
+from textual_autocomplete import DropdownItem, TargetState
 from posting.help_screen import HelpData
 from posting.highlighters import VariableHighlighter
 from posting.themes import Theme
+from posting.variables import get_variables
 from posting.widgets.input import PostingInput
 
 from posting.widgets.variable_autocomplete import VariableAutoComplete
@@ -22,12 +26,11 @@ def on_mount(self) -> None:
         self.highlighter = VariableHighlighter()
         self.auto_complete = VariableAutoComplete(
             candidates=[],
+            variable_candidates=self._get_variable_candidates,
             target=self,
         )
         self.screen.mount(self.auto_complete)
 
-        # Trigger the callback to set the initial highlighter
-
     def on_theme_change(self, theme: Theme) -> None:
         """Callback which fires when the app-level theme changes in order
         to update the color scheme of the variable highlighter.
@@ -39,3 +42,6 @@ def on_theme_change(self, theme: Theme) -> None:
         if theme.variable:
             self.highlighter.variable_styles = theme.variable.fill_with_defaults(theme)
             self.refresh()
+
+    def _get_variable_candidates(self, target_state: TargetState) -> list[DropdownItem]:
+        return [DropdownItem(main=f"${variable}") for variable in get_variables()]