super_editor 0.2.6

Configurable, composable, extensible text editor and document renderer for Flutter.

example/lib/main.dart

import 'package:example/demos/components/demo_text_with_hint.dart';
import 'package:example/demos/components/demo_unselectable_hr.dart';
import 'package:example/demos/debugging/simple_deltas_input.dart';
import 'package:example/demos/demo_animated_task_height.dart';
import 'package:example/demos/demo_app_shortcuts.dart';
import 'package:example/demos/demo_empty_document.dart';
import 'package:example/demos/demo_markdown_serialization.dart';
import 'package:example/demos/demo_paragraphs.dart';
import 'package:example/demos/demo_rtl.dart';
import 'package:example/demos/demo_selectable_text.dart';
import 'package:example/demos/editor_configs/demo_mobile_editing_android.dart';
import 'package:example/demos/editor_configs/demo_mobile_editing_ios.dart';
import 'package:example/demos/example_editor/example_editor.dart';
import 'package:example/demos/flutter_features/demo_inline_widgets.dart';
import 'package:example/demos/flutter_features/textinputclient/basic_text_input_client.dart';
import 'package:example/demos/flutter_features/textinputclient/textfield.dart';
import 'package:example/demos/scrolling/demo_task_and_chat_with_customscrollview.dart';
import 'package:example/demos/sliver_example_editor.dart';
import 'package:example/demos/styles/demo_doc_styles.dart';
import 'package:example/demos/super_document/demo_super_reader.dart';
import 'package:example/demos/supertextfield/demo_textfield.dart';
import 'package:example/demos/supertextfield/ios/demo_superiostextfield.dart';
import 'package:example/logging.dart';
import 'package:flutter/material.dart';
import 'package:flutter_gen/gen_l10n/app_localizations.dart';
import 'package:flutter_localizations/flutter_localizations.dart';
import 'package:logging/logging.dart';
import 'package:super_editor/super_editor.dart';

import 'demos/demo_attributed_text.dart';
import 'demos/demo_document_loses_focus.dart';
import 'demos/demo_switch_document_content.dart';
import 'demos/super_document/demo_read_only_scrolling_document.dart';
import 'demos/supertextfield/android/demo_superandroidtextfield.dart';

/// Demo of a basic text editor, as well as various widgets that
/// are available in this package.
Future<void> main() async {
  initLoggers(Level.FINEST, {
    // editorScrollingLog,
    // editorGesturesLog,
    // editorImeLog,
    // editorKeyLog,
    // editorOpsLog,
    // editorLayoutLog,
    // editorDocLog,
    // editorStyleLog,
    // textFieldLog,
    appLog,
  });

  runApp(SuperEditorDemoApp());
}

class SuperEditorDemoApp extends StatelessWidget {
  @override
  Widget build(BuildContext context) {
    return MaterialApp(
      title: 'Super Editor Demo App',
      theme: ThemeData(
        primarySwatch: Colors.red,
      ),
      home: HomeScreen(),
      supportedLocales: const [
        Locale('en', ''),
        Locale('es', ''),
      ],
      localizationsDelegates: const [
        ...AppLocalizations.localizationsDelegates,
        GlobalMaterialLocalizations.delegate,
        GlobalWidgetsLocalizations.delegate,
        GlobalCupertinoLocalizations.delegate,
      ],
      debugShowCheckedModeBanner: false,
    );
  }
}

/// Displays various demos that are selected from a list of
/// options in a drawer.
class HomeScreen extends StatefulWidget {
  @override
  _HomeScreenState createState() => _HomeScreenState();
}

class _HomeScreenState extends State<HomeScreen> {
  final _scaffoldKey = GlobalKey<ScaffoldState>();

  _MenuItem? _selectedMenuItem;

  @override
  void initState() {
    super.initState();

    _selectedMenuItem = _menu[0].items[0];
  }

  void _toggleDrawer() {
    if (_scaffoldKey.currentState!.isDrawerOpen) {
      Navigator.of(context).pop();
    } else {
      _scaffoldKey.currentState!.openDrawer();
    }
  }

  void _closeDrawer() {
    if (_scaffoldKey.currentState!.isDrawerOpen) {
      Navigator.of(context).pop();
    }
  }

  void _selectMenuItem(_MenuItem item) {
    setState(() {
      _selectedMenuItem = item;
      _closeDrawer();
    });
  }

  @override
  Widget build(BuildContext context) {
    // We need a FocusScope above the Overlay so that focus can be shared between
    // SuperEditor in one OverlayEntry, and the popover toolbar in another OverlayEntry.
    return FocusScope(
      // We need our own [Overlay] instead of the one created by the navigator
      // because overlay entries added to navigator's [Overlay] are always
      // displayed above all routes.
      //
      // We display the editor's toolbar in an [OverlayEntry], so inserting it
      // at the navigator's [Overlay] causes widgets that are displayed in routes,
      // e.g. [DropdownButton] items, to be displayed beneath the toolbar.
      child: Overlay(
        initialEntries: [
          OverlayEntry(builder: (context) {
            return Scaffold(
              key: _scaffoldKey,
              body: Stack(
                children: [
                  _selectedMenuItem!.pageBuilder(context),
                  _buildDrawerButton(),
                ],
              ),
              drawer: _buildDrawer(),
            );
          })
        ],
      ),
    );
  }

  Widget _buildDrawerButton() {
    return SafeArea(
      child: Material(
        color: Colors.transparent,
        child: SizedBox(
          height: 56,
          width: 56,
          child: IconButton(
            icon: const Icon(Icons.menu),
            color: Theme.of(context).colorScheme.onSurface,
            splashRadius: 24,
            onPressed: _toggleDrawer,
          ),
        ),
      ),
    );
  }

  Widget _buildDrawer() {
    return Drawer(
      child: SingleChildScrollView(
        primary: false,
        child: Padding(
          padding: const EdgeInsets.symmetric(horizontal: 32, vertical: 48),
          child: Column(
            crossAxisAlignment: CrossAxisAlignment.start,
            children: [
              for (final group in _menu) ...[
                if (group.title != null) _DrawerHeader(title: group.title),
                for (final item in group.items) ...[
                  _DrawerButton(
                    icon: item.icon,
                    title: item.title,
                    isSelected: item == _selectedMenuItem,
                    onPressed: () {
                      _selectMenuItem(item);
                    },
                  ),
                ],
                const SizedBox(height: 24),
              ],
            ],
          ),
        ),
      ),
    );
  }
}

// Demo options that are shown in the `HomeScreen` drawer.
final _menu = <_MenuGroup>[
  _MenuGroup(
    title: 'Super Editor',
    items: [
      _MenuItem(
        icon: Icons.description,
        title: 'Editor Demo',
        pageBuilder: (context) {
          return ExampleEditor();
        },
      ),
      _MenuItem(
        icon: Icons.description,
        title: 'Sliver Editor Demo',
        pageBuilder: (context) {
          return SliverExampleEditor();
        },
      ),
      _MenuItem(
        icon: Icons.description,
        title: 'Switch Docs Demo',
        pageBuilder: (context) {
          return SwitchDocumentDemo();
        },
      ),
      _MenuItem(
        icon: Icons.description,
        title: 'Lose Focus Demo',
        pageBuilder: (context) {
          return LoseFocusDemo();
        },
      ),
      _MenuItem(
        icon: Icons.shortcut,
        title: 'App Shortcuts',
        pageBuilder: (context) {
          return AppShortcutsDemo();
        },
      ),
      _MenuItem(
        icon: Icons.description,
        title: 'Markdown Serialization Demo',
        pageBuilder: (context) {
          return MarkdownSerializationDemo();
        },
      ),
      _MenuItem(
        icon: Icons.description,
        title: 'RTL Demo',
        pageBuilder: (context) {
          return RTLDemo();
        },
      ),
      _MenuItem(
        icon: Icons.description,
        title: 'Empty Document',
        pageBuilder: (context) {
          return EmptyDocumentDemo();
        },
      ),
      _MenuItem(
        icon: Icons.description,
        title: 'Animated task height demo',
        pageBuilder: (context) {
          return AnimatedTaskHeightDemo();
        },
      ),
    ],
  ),
  _MenuGroup(
    title: 'STYLES',
    items: [
      _MenuItem(
        icon: Icons.style,
        title: 'Document Styles',
        pageBuilder: (context) {
          return const DocumentStylesDemo();
        },
      ),
    ],
  ),
  _MenuGroup(
    title: 'EDITOR CONFIGS',
    items: [
      _MenuItem(
        icon: Icons.phone_android,
        title: 'Mobile Editing - Android',
        pageBuilder: (context) {
          return MobileEditingAndroidDemo();
        },
      ),
      _MenuItem(
        icon: Icons.phone_android,
        title: 'Mobile Editing - iOS',
        pageBuilder: (context) {
          return MobileEditingIOSDemo();
        },
      ),
    ],
  ),
  _MenuGroup(
    title: 'READ-ONLY DOCS',
    items: [
      _MenuItem(
        icon: Icons.text_snippet,
        title: 'SuperReader',
        pageBuilder: (context) {
          return SuperReaderDemo();
        },
      ),
      _MenuItem(
        icon: Icons.text_snippet,
        title: 'In CustomScrollView',
        pageBuilder: (context) {
          return ReadOnlyCustomScrollViewDemo();
        },
      ),
    ],
  ),
  _MenuGroup(
    title: 'SCROLLING',
    items: [
      _MenuItem(
        icon: Icons.task,
        title: 'Task and Chat Demo - Slivers',
        pageBuilder: (context) {
          return TaskAndChatWithCustomScrollViewDemo();
        },
      ),
    ],
  ),
  _MenuGroup(
    title: 'PIECES',
    items: [
      _MenuItem(
        icon: Icons.text_snippet,
        title: 'Paragraphs',
        pageBuilder: (context) {
          return ParagraphsDemo();
        },
      ),
    ],
  ),
  _MenuGroup(
    title: 'DOC COMPONENTS',
    items: [
      _MenuItem(
        icon: Icons.short_text,
        title: 'Text with hint',
        pageBuilder: (context) {
          return TextWithHintDemo();
        },
      ),
      _MenuItem(
        icon: Icons.short_text,
        title: 'Unselectable HR',
        pageBuilder: (context) {
          return UnselectableHrDemo();
        },
      ),
    ],
  ),
  _MenuGroup(
    title: 'SUPER TEXT FIELD',
    items: [
      _MenuItem(
        icon: Icons.text_fields,
        title: 'SuperTextField',
        pageBuilder: (context) {
          return TextFieldDemo();
        },
      ),
      _MenuItem(
        icon: Icons.text_fields,
        title: 'Super iOS Textfield',
        pageBuilder: (context) {
          return SuperIOSTextFieldDemo();
        },
      ),
      _MenuItem(
        icon: Icons.text_fields,
        title: 'Super Android Textfield',
        pageBuilder: (context) {
          return SuperAndroidTextFieldDemo();
        },
      ),
    ],
  ),
  _MenuGroup(
    title: 'INFRASTRUCTURE',
    items: [
      _MenuItem(
        icon: Icons.text_fields,
        title: 'SuperTextWithSelection',
        pageBuilder: (context) {
          return SelectableTextDemo();
        },
      ),
      _MenuItem(
        icon: Icons.text_fields,
        title: 'Attributed Text',
        pageBuilder: (context) {
          return AttributedTextDemo();
        },
      ),
    ],
  ),
  _MenuGroup(
    title: 'DEBUGGING',
    items: [
      _MenuItem(
        icon: Icons.text_fields,
        title: 'Text Deltas',
        pageBuilder: (context) {
          return SimpleDeltasInputDemo();
        },
      ),
    ],
  ),
  _MenuGroup(
    title: 'FLUTTER BEHAVIOR',
    items: [
      _MenuItem(
        icon: Icons.text_fields,
        title: 'Regular TextField',
        pageBuilder: (context) {
          return FlutterTextFieldDemo();
        },
      ),
      _MenuItem(
        icon: Icons.text_fields,
        title: 'Basic TextInputClient',
        pageBuilder: (context) {
          return BasicTextInputClientDemo();
        },
      ),
      _MenuItem(
        icon: Icons.image,
        title: 'Text Inline Widgets',
        pageBuilder: (context) {
          return TextInlineWidgetDemo();
        },
      ),
    ],
  ),
];

class _MenuGroup {
  const _MenuGroup({
    this.title,
    required this.items,
  });

  final String? title;
  final List<_MenuItem> items;
}

class _MenuItem {
  const _MenuItem({
    required this.icon,
    required this.title,
    required this.pageBuilder,
  });

  final IconData icon;
  final String title;
  final WidgetBuilder pageBuilder;
}

class _DrawerHeader extends StatelessWidget {
  const _DrawerHeader({
    Key? key,
    required this.title,
  }) : super(key: key);

  final String? title;

  @override
  Widget build(BuildContext context) {
    return Padding(
      padding: const EdgeInsets.only(left: 16, bottom: 4),
      child: Text(
        title!,
        style: const TextStyle(
          color: Color(0xFF444444),
          fontSize: 10,
          fontWeight: FontWeight.bold,
        ),
      ),
    );
  }
}

class _DrawerButton extends StatelessWidget {
  const _DrawerButton({
    Key? key,
    required this.icon,
    required this.title,
    this.isSelected = false,
    required this.onPressed,
  }) : super(key: key);

  final IconData icon;
  final String title;
  final bool isSelected;
  final VoidCallback onPressed;

  @override
  Widget build(BuildContext context) {
    return SizedBox(
      width: double.infinity,
      child: ElevatedButton(
        style: ButtonStyle(
            backgroundColor: MaterialStateColor.resolveWith((states) {
              if (isSelected) {
                return const Color(0xFFBBBBBB);
              }

              if (states.contains(MaterialState.hovered)) {
                return Colors.grey.withOpacity(0.1);
              }

              return Colors.transparent;
            }),
            // splashFactory: NoSplash.splashFactory,
            foregroundColor:
                MaterialStateColor.resolveWith((states) => isSelected ? Colors.white : const Color(0xFFBBBBBB)),
            elevation: MaterialStateProperty.resolveWith((states) => 0),
            padding: MaterialStateProperty.resolveWith((states) => const EdgeInsets.all(16))),
        onPressed: isSelected ? null : onPressed,
        child: Row(
          children: [
            const SizedBox(width: 8),
            Icon(
              icon,
            ),
            const SizedBox(width: 16),
            Expanded(
              child: Text(title),
            ),
          ],
        ),
      ),
    );
  }
}