add custom recognizer (#1196)

lib/src/widgets/delegate.dart

@@ -14,6 +14,8 @@ typedef EmbedsBuilder = EmbedBuilder Function(Embed node);
 
 typedef CustomStyleBuilder = TextStyle Function(Attribute attribute);
 
+typedef CustomRecognizerBuilder = GestureRecognizer? Function(Attribute attribute);
+
 /// Delegate interface for the [EditorTextSelectionGestureDetectorBuilder].
 ///
 /// The interface is usually implemented by textfield implementations wrapping

lib/src/widgets/editor.dart

@@ -176,6 +176,7 @@ class QuillEditor extends StatefulWidget {
     this.unknownEmbedBuilder,
     this.linkActionPickerDelegate = defaultLinkActionPickerDelegate,
     this.customStyleBuilder,
+    this.customRecognizerBuilder,
     this.locale,
     this.floatingCursorDisabled = false,
     this.textSelectionControls,
@@ -372,6 +373,7 @@ class QuillEditor extends StatefulWidget {
   final Iterable<EmbedBuilder>? embedBuilders;
   final EmbedBuilder? unknownEmbedBuilder;
   final CustomStyleBuilder? customStyleBuilder;
+  final CustomRecognizerBuilder? customRecognizerBuilder;
 
   /// The locale to use for the editor toolbar, defaults to system locale
   /// More https://github.com/singerdmx/flutter-quill#translation
@@ -518,6 +520,7 @@ class QuillEditorState extends State<QuillEditor>
       embedBuilder: _getEmbedBuilder,
       linkActionPickerDelegate: widget.linkActionPickerDelegate,
       customStyleBuilder: widget.customStyleBuilder,
+      customRecognizerBuilder: widget.customRecognizerBuilder,
       floatingCursorDisabled: widget.floatingCursorDisabled,
       onImagePaste: widget.onImagePaste,
       customShortcuts: widget.customShortcuts,

lib/src/widgets/raw_editor.dart

@@ -79,6 +79,7 @@ class RawEditor extends StatefulWidget {
     this.scrollPhysics,
     this.linkActionPickerDelegate = defaultLinkActionPickerDelegate,
     this.customStyleBuilder,
+    this.customRecognizerBuilder,
     this.floatingCursorDisabled = false,
     this.onImagePaste,
     this.customLinkPrefixes = const <String>[],
@@ -262,6 +263,7 @@ class RawEditor extends StatefulWidget {
   final EmbedsBuilder embedBuilder;
   final LinkActionPickerDelegate linkActionPickerDelegate;
   final CustomStyleBuilder? customStyleBuilder;
+  final CustomRecognizerBuilder? customRecognizerBuilder;
   final bool floatingCursorDisabled;
   final List<String> customLinkPrefixes;
 
@@ -925,6 +927,7 @@ class RawEditorState extends EditorState
       textDirection: _textDirection,
       embedBuilder: widget.embedBuilder,
       customStyleBuilder: widget.customStyleBuilder,
+      customRecognizerBuilder: widget.customRecognizerBuilder,
       styles: _styles!,
       readOnly: widget.readOnly,
       controller: controller,

lib/src/widgets/text_line.dart

@@ -41,6 +41,7 @@ class TextLine extends StatefulWidget {
     required this.linkActionPicker,
     this.textDirection,
     this.customStyleBuilder,
+    this.customRecognizerBuilder,
     this.customLinkPrefixes = const <String>[],
     Key? key,
   }) : super(key: key);
@@ -52,6 +53,7 @@ class TextLine extends StatefulWidget {
   final bool readOnly;
   final QuillController controller;
   final CustomStyleBuilder? customStyleBuilder;
+  final CustomRecognizerBuilder? customRecognizerBuilder;
   final ValueChanged<String>? onLaunchUrl;
   final LinkActionPicker linkActionPicker;
   final List<String> customLinkPrefixes;
@@ -313,12 +315,14 @@ class _TextLineState extends State<TextLine> {
     final isLink = nodeStyle.containsKey(Attribute.link.key) &&
         nodeStyle.attributes[Attribute.link.key]!.value != null;
 
+    final recognizer = _getRecognizer(node, isLink);
+
     return TextSpan(
       text: textNode.value,
       style: _getInlineTextStyle(
           textNode, defaultStyles, nodeStyle, lineStyle, isLink),
-      recognizer: isLink && canLaunchLinks ? _getRecognizer(node) : null,
-      mouseCursor: isLink && canLaunchLinks ? SystemMouseCursors.click : null,
+      recognizer: recognizer,
+      mouseCursor: (recognizer != null) ? SystemMouseCursors.click : null,
     );
   }
 
@@ -406,19 +410,38 @@ class _TextLineState extends State<TextLine> {
     return res;
   }
 
-  GestureRecognizer _getRecognizer(Node segment) {
+  GestureRecognizer? _getRecognizer(Node segment, bool isLink) {
     if (_linkRecognizers.containsKey(segment)) {
       return _linkRecognizers[segment]!;
     }
 
-    if (isDesktop() || widget.readOnly) {
-      _linkRecognizers[segment] = TapGestureRecognizer()
-        ..onTap = () => _tapNodeLink(segment);
-    } else {
-      _linkRecognizers[segment] = LongPressGestureRecognizer()
-        ..onLongPress = () => _longPressLink(segment);
+    if (widget.customRecognizerBuilder != null) {
+      final textNode = segment as leaf.Text;
+      final nodeStyle = textNode.style;
+
+      nodeStyle.attributes.forEach((key, value) {
+        final recognizer = widget.customRecognizerBuilder!.call(value);
+        if (recognizer != null) {
+          _linkRecognizers[segment] = recognizer;
+          return;
+        }
+      });
+    }
+
+    if (_linkRecognizers.containsKey(segment)) {
+      return _linkRecognizers[segment]!;
+    }
+
+    if (isLink && canLaunchLinks) {
+      if (isDesktop() || widget.readOnly) {
+        _linkRecognizers[segment] = TapGestureRecognizer()
+          ..onTap = () => _tapNodeLink(segment);
+      } else {
+        _linkRecognizers[segment] = LongPressGestureRecognizer()
+          ..onLongPress = () => _longPressLink(segment);
+      }
     }
-    return _linkRecognizers[segment]!;
+    return _linkRecognizers[segment];
   }
 
   Future<void> _launchUrl(String url) async {