StandardView/JournalView: Implement search highlighting

Fixes #14

lib/folder_views/journal_view.dart

@@ -7,6 +7,7 @@ import 'package:gitjournal/core/note.dart';
 import 'package:gitjournal/core/notes_folder.dart';
 import 'package:gitjournal/core/sorting_mode.dart';
 import 'package:gitjournal/folder_views/list_view.dart';
+import 'package:gitjournal/widgets/highlighted_text.dart';
 
 class JournalView extends StatelessWidget {
   final NoteSelectedFunction noteTapped;
@@ -16,6 +17,7 @@ class JournalView extends StatelessWidget {
   final NotesFolder folder;
   final String emptyText;
   final String searchTerm;
+  final String searchTermLowerCase;
 
   static final _dateFormat = DateFormat('dd MMM, yyyy  ');
   static final _timeFormat = DateFormat('Hm');
@@ -27,7 +29,7 @@ class JournalView extends StatelessWidget {
     @required this.isNoteSelected,
     @required this.emptyText,
     @required this.searchTerm,
-  });
+  }) : searchTermLowerCase = searchTerm.toLowerCase();
 
   @override
   Widget build(BuildContext context) {
@@ -70,11 +72,13 @@ class JournalView extends StatelessWidget {
 
     var children = <Widget>[
       const SizedBox(height: 8.0),
-      Text(
+      HighlightedText(
-        note.summary + '\n', // no minLines option
+        text: note.summary + '\n', // no minLines option
         maxLines: 3,
         overflow: TextOverflow.ellipsis,
         style: textTheme.bodyText2,
+        highlightText: searchTerm,
+        highlightTextLowerCase: searchTermLowerCase,
       ),
     ];
 

lib/folder_views/standard_view.dart

@@ -7,6 +7,7 @@ import 'package:gitjournal/core/note.dart';
 import 'package:gitjournal/core/notes_folder.dart';
 import 'package:gitjournal/core/sorting_mode.dart';
 import 'package:gitjournal/folder_views/list_view.dart';
+import 'package:gitjournal/widgets/highlighted_text.dart';
 
 enum StandardViewHeader {
   TitleOrFileName,
@@ -26,6 +27,7 @@ class StandardView extends StatelessWidget {
   final bool showSummary;
 
   final String searchTerm;
+  final String searchTermLowerCase;
 
   static final _dateFormat = DateFormat('dd MMM, yyyy');
 
@@ -38,9 +40,8 @@ class StandardView extends StatelessWidget {
     @required this.showSummary,
     @required this.isNoteSelected,
     @required this.searchTerm,
-  });
+  }) : searchTermLowerCase = searchTerm.toLowerCase();
 
-  @override
   @override
   Widget build(BuildContext context) {
     return FolderListView(
@@ -79,10 +80,12 @@ class StandardView extends StatelessWidget {
         assert(false, "StandardViewHeader must not be null");
     }
 
-    Widget titleWidget = Text(
+    Widget titleWidget = HighlightedText(
-      title,
+      text: title,
       style: textTheme.headline6,
       overflow: TextOverflow.ellipsis,
+      highlightText: searchTerm,
+      highlightTextLowerCase: searchTermLowerCase,
     );
     Widget trailing = Container();
 
@@ -110,11 +113,13 @@ class StandardView extends StatelessWidget {
     if (showSummary) {
       var summary = <Widget>[
         const SizedBox(height: 8.0),
-        Text(
+        HighlightedText(
-          note.summary + '\n', // no minLines option
+          text: note.summary + '\n', // no minLines option
           maxLines: 3,
           overflow: TextOverflow.ellipsis,
           style: textTheme.bodyText2,
+          highlightText: searchTerm,
+          highlightTextLowerCase: searchTermLowerCase,
         ),
       ];
 

lib/widgets/highlighted_text.dart

@@ -21,22 +21,12 @@ class HighlightedText extends StatelessWidget {
   @override
   Widget build(BuildContext context) {
     if (highlightText.isEmpty) {
-      return Text(
+      return Text(text, maxLines: maxLines, overflow: overflow, style: style);
-        text,
-        maxLines: maxLines - 1,
-        overflow: overflow,
-        style: style,
-      );
     }
 
     var i = text.toLowerCase().indexOf(highlightTextLowerCase);
     if (i == -1) {
-      return Text(
+      return Text(text, maxLines: maxLines, overflow: overflow, style: style);
-        text,
-        maxLines: maxLines - 1,
-        overflow: overflow,
-        style: style,
-      );
     }
 
     var highlightStyle = style.copyWith(