Multiline textboxes done right

Author: FeodorFitsner

client/lib/controls/form_field.dart

@@ -32,7 +32,7 @@ TextInputType parseTextInputType(String type) {
     case "visiblepassword":
       return TextInputType.visiblePassword;
   }
-  return TextInputType.none;
+  return TextInputType.text;
 }
 
 InputDecoration buildInputDecoration(

client/lib/controls/page.dart

@@ -75,14 +75,19 @@ class PageControl extends StatelessWidget {
             colorScheme: lightColorScheme,
             brightness: Brightness.light,
             useMaterial3: true,
+            // fontFamily: kIsWeb && window.navigator.userAgent.contains('OS 15_')
+            //     ? '-apple-system'
+            //     : null,
             visualDensity: VisualDensity.adaptivePlatformDensity);
 
     var darkTheme = parseTheme(control, "darkTheme") ??
         ThemeData(
-            //colorSchemeSeed: const Color.fromARGB(255, 104, 192, 233),
             colorScheme: darkColorScheme,
             brightness: Brightness.dark,
             useMaterial3: true,
+            // fontFamily: kIsWeb && window.navigator.userAgent.contains('OS 15_')
+            //     ? '-apple-system'
+            //     : null,
             visualDensity: VisualDensity.adaptivePlatformDensity);
 
     var themeMode = ThemeMode.values.firstWhere(

client/lib/controls/textfield.dart

@@ -96,12 +96,15 @@ class _TextFieldControlState extends State<TextFieldControl> {
           var prefixControls = widget.children.where((c) => c.name == "prefix");
           var suffixControls = widget.children.where((c) => c.name == "suffix");
 
-          int? minLines = widget.control.attrInt("minLines");
-          int? maxLines = widget.control.attrInt("maxLines");
+          bool shiftEnter = widget.control.attrBool("shiftEnter", false)!;
+          bool multiline =
+              widget.control.attrBool("multiline", false)! || shiftEnter;
+          int minLines = widget.control.attrInt("minLines", 1)!;
+          int? maxLines =
+              widget.control.attrInt("maxLines", multiline ? null : 1);
 
           bool readOnly = widget.control.attrBool("readOnly", false)!;
           bool password = widget.control.attrBool("password", false)!;
-          bool shiftEnter = widget.control.attrBool("shiftEnter", false)!;
           bool canRevealPassword =
               widget.control.attrBool("canRevealPassword", false)!;
           bool onChange = widget.control.attrBool("onChange", false)!;
@@ -122,9 +125,7 @@ class _TextFieldControlState extends State<TextFieldControl> {
           TextInputType keyboardType = parseTextInputType(
               widget.control.attrString("keyboardType", "")!);
 
-          if (keyboardType == TextInputType.none &&
-              minLines != null &&
-              minLines > 0) {
+          if (multiline) {
             keyboardType = TextInputType.multiline;
           }
 
@@ -138,12 +139,14 @@ class _TextFieldControlState extends State<TextFieldControl> {
           var textField = TextFormField(
               autofocus: autofocus,
               enabled: !disabled,
-              onFieldSubmitted: (_) {
-                ws.pageEventFromWeb(
-                    eventTarget: widget.control.id,
-                    eventName: "submit",
-                    eventData: "");
-              },
+              onFieldSubmitted: !multiline
+                  ? (_) {
+                      ws.pageEventFromWeb(
+                          eventTarget: widget.control.id,
+                          eventName: "submit",
+                          eventData: "");
+                    }
+                  : null,
               decoration: buildInputDecoration(
                   widget.control,
                   prefixControls.isNotEmpty ? prefixControls.first : null,
@@ -152,13 +155,11 @@ class _TextFieldControlState extends State<TextFieldControl> {
               keyboardType: keyboardType,
               textAlign: textAlign,
               minLines: minLines,
-              maxLines: password ? 1 : maxLines,
+              maxLines: maxLines,
               readOnly: readOnly,
               obscureText: password && !_revealPassword,
               controller: _controller,
-              focusNode: keyboardType == TextInputType.multiline && shiftEnter
-                  ? _shiftEnterfocusNode
-                  : _focusNode,
+              focusNode: shiftEnter ? _shiftEnterfocusNode : _focusNode,
               onChanged: (String value) {
                 //debugPrint(value);
                 setState(() {

docs/roadmap.md

@@ -878,6 +878,7 @@ Properties:
 
 - value
 - keyboardType
+- multiline
 - minLines
 - maxLines
 - password

sdk/python/flet/textfield.py

@@ -62,6 +62,7 @@ def __init__(
         #
         value: str = None,
         keyboard_type: TextInputType = None,
+        multiline: bool = None,
         min_lines: int = None,
         max_lines: int = None,
         password: bool = None,
@@ -108,6 +109,7 @@ def __init__(
         self.value = value
         self.keyboard_type = keyboard_type
         self.text_align = text_align
+        self.multiline = multiline
         self.min_lines = min_lines
         self.max_lines = max_lines
         self.read_only = read_only
@@ -152,6 +154,16 @@ def text_align(self):
     def text_align(self, value: TextAlign):
         self._set_attr("textAlign", value)
 
+    # multiline
+    @property
+    def multiline(self):
+        return self._get_attr("multiline", data_type="bool", def_value=False)
+
+    @multiline.setter
+    @beartype
+    def multiline(self, value: Optional[bool]):
+        self._set_attr("multiline", value)
+
     # min_lines
     @property
     def min_lines(self):

sdk/python/playground/textfield-test.py

@@ -55,9 +55,10 @@ def chat_submit(e):
 
     chat_input = TextField(
         hint_text="Say something...",
-        min_lines=1,
         shift_enter=True,
+        min_lines=1,
         on_submit=chat_submit,
+        max_lines=5,
     )
 
     form = Column(
@@ -83,7 +84,7 @@ def chat_submit(e):
                 helper_text="Tell something about us",
                 border="underline",
                 filled=True,
-                min_lines=1,
+                multiline=True,
             ),
             Text(
                 "New line - Shift + Enter and submit on Enter",