add safearea for toolbar

* make list continuation more universal
* add support for indentation
* add support for numbered list continuation

lib/formatter.dart

@@ -37,18 +37,44 @@ class MarkdownFormatter extends TextInputFormatter {
       TextEditingValue oldValue, TextEditingValue newValue) {
     if (oldValue.text.length > newValue.text.length) return newValue;
 
+    var newVal = newValue;
+
     final char = newValue.text[newValue.selection.baseOffset - 1];
+
     if (char == '\n') {
       final lineBefore =
           newValue.text.lineBefore(newValue.selection.baseOffset - 2);
-      if (lineBefore.startsWith('- ')) {
-        return newValue.append('- ');
+
+      TextEditingValue listContinuation(String listChar, TextEditingValue tev) {
+        final regex = RegExp('(\\s*)${RegExp.escape(listChar)} ');
+        final match = regex.matchAsPrefix(lineBefore);
+        if (match == null) {
+          return tev;
+        }
+        final indent = match.group(1);
+
+        return tev.append('$indent$listChar ');
       }
-      if (lineBefore.startsWith('* ')) {
-        return newValue.append('* ');
+
+      TextEditingValue numberedListContinuation(
+          String afterNumberChar, TextEditingValue tev) {
+        final regex = RegExp('(\\s*)(\\d+)${RegExp.escape(afterNumberChar)} ');
+        final match = regex.matchAsPrefix(lineBefore);
+        if (match == null) {
+          return tev;
+        }
+        final indent = match.group(1);
+        final number = int.parse(match.group(2)!) + 1;
+
+        return tev.append('$indent$number$afterNumberChar ');
       }
+
+      newVal = listContinuation('-', newVal);
+      newVal = listContinuation('*', newVal);
+      newVal = numberedListContinuation('.', newVal);
+      newVal = numberedListContinuation(')', newVal);
     }
 
-    return newValue;
+    return newVal;
   }
 }

lib/pages/create_post/create_post.dart

@@ -134,6 +134,7 @@ class CreatePostPage extends HookWidget {
                           )
                         ],
                       ),
+                      Toolbar.safeArea,
                     ].spaced(6),
                   ),
                 ),

lib/widgets/editor/toolbar.dart

@@ -62,12 +62,13 @@ extension on TextEditingController {
 class Toolbar extends HookWidget {
   final TextEditingController controller;
 
+  static const _height = 50.0;
   const Toolbar(this.controller);
 
   @override
   Widget build(BuildContext context) {
     return Container(
-      height: 50,
+      height: _height,
       width: double.infinity,
       color: Theme.of(context).cardColor,
       child: Material(
@@ -144,6 +145,8 @@ class Toolbar extends HookWidget {
       ),
     );
   }
+
+  static Widget safeArea = const SizedBox(height: _height);
 }
 
 class AddLinkDialog extends HookWidget {
@@ -151,9 +154,11 @@ class AddLinkDialog extends HookWidget {
   final String url;
   final String selection;
 
+  static final _websiteRegex = RegExp(r'https?:\/\/', caseSensitive: false);
+
   AddLinkDialog(this.selection)
-      : title = selection.startsWith('https?://') ? '' : selection,
-        url = selection.startsWith('https?://') ? selection : '';
+      : title = selection.startsWith(_websiteRegex) ? '' : selection,
+        url = selection.startsWith(_websiteRegex) ? selection : '';
 
   @override
   Widget build(BuildContext context) {