feat: add embed link preview

frontend/appflowy_flutter/lib/plugins/document/presentation/editor_plugins/desktop_toolbar/link/link_hover_menu.dart

@@ -240,15 +240,7 @@ class _LinkHoverTriggerState extends State<LinkHoverTrigger> {
 
   Future<void> copyLink(BuildContext context) async {
     final href = widget.attribute.href ?? '';
-    if (href.isEmpty) return;
+    await context.copyLink(href);
-    await getIt<ClipboardService>()
-        .setData(ClipboardServiceData(plainText: href));
-    if (context.mounted) {
-      showToastNotification(
-        context,
-        message: LocaleKeys.shareAction_copyLinkSuccess.tr(),
-      );
-    }
     hoverMenuController.close();
   }
 
@@ -621,3 +613,17 @@ enum LinkConvertMenuCommand {
     }
   }
 }
+
+extension LinkExtension on BuildContext {
+  Future<void> copyLink(String link) async {
+    if (link.isEmpty) return;
+    await getIt<ClipboardService>()
+        .setData(ClipboardServiceData(plainText: link));
+    if (mounted) {
+      showToastNotification(
+        this,
+        message: LocaleKeys.shareAction_copyLinkSuccess.tr(),
+      );
+    }
+  }
+}

frontend/appflowy_flutter/lib/plugins/document/presentation/editor_plugins/link_embed/link_embed_block_component.dart

@@ -1,10 +1,22 @@
+import 'package:appflowy/generated/flowy_svgs.g.dart';
+import 'package:appflowy/generated/locale_keys.g.dart';
+import 'package:appflowy/plugins/document/presentation/editor_plugins/link_preview/custom_link_parser.dart';
+import 'package:appflowy/shared/appflowy_network_image.dart';
 import 'package:appflowy_editor/appflowy_editor.dart';
 import 'package:appflowy_editor_plugins/appflowy_editor_plugins.dart';
+import 'package:appflowy_ui/appflowy_ui.dart';
+import 'package:easy_localization/easy_localization.dart';
+import 'package:flowy_infra_ui/flowy_infra_ui.dart';
+import 'package:flutter/material.dart';
+import 'package:flutter_bloc/flutter_bloc.dart';
+
+import 'link_embed_menu.dart';
 
 class LinkEmbedKeys {
   const LinkEmbedKeys._();
   static const String previewType = 'preview_type';
   static const String embed = 'embed';
+  static const String align = 'align';
 }
 
 Node linkEmbedNode({required String url}) => Node(
@@ -14,3 +26,259 @@ Node linkEmbedNode({required String url}) => Node(
         LinkEmbedKeys.previewType: LinkEmbedKeys.embed,
       },
     );
+
+class LinkEmbedBlockComponent extends BlockComponentStatefulWidget {
+  const LinkEmbedBlockComponent({
+    super.key,
+    super.showActions,
+    super.actionBuilder,
+    super.configuration = const BlockComponentConfiguration(),
+    required super.node,
+  });
+
+  @override
+  State<LinkEmbedBlockComponent> createState() =>
+      LinkEmbedBlockComponentState();
+}
+
+class LinkEmbedBlockComponentState extends State<LinkEmbedBlockComponent>
+    with BlockComponentConfigurable {
+  @override
+  BlockComponentConfiguration get configuration => widget.configuration;
+
+  @override
+  Node get node => widget.node;
+
+  String get url => widget.node.attributes[LinkPreviewBlockKeys.url]!;
+
+  EmbedLoadingStatus status = EmbedLoadingStatus.loading;
+  final parser = LinkParser();
+  LinkInfo linkInfo = LinkInfo();
+
+  final showActionsNotifier = ValueNotifier<bool>(false);
+  bool isMenuShowing = false, isHovering = false;
+
+  @override
+  void initState() {
+    super.initState();
+    parser.addLinkInfoListener((v) {
+      if (mounted) {
+        setState(() {
+          linkInfo = v;
+          if (v.isEmpty()) {
+            status = EmbedLoadingStatus.error;
+          } else {
+            status = EmbedLoadingStatus.idle;
+          }
+        });
+      }
+    });
+    parser.start(url);
+  }
+
+  @override
+  void dispose() {
+    parser.dispose();
+    super.dispose();
+  }
+
+  @override
+  Widget build(BuildContext context) {
+    Widget result = MouseRegion(
+      onEnter: (_) {
+        isHovering = true;
+        showActionsNotifier.value = true;
+      },
+      onExit: (_) {
+        isHovering = false;
+        Future.delayed(const Duration(milliseconds: 200), () {
+          if (isMenuShowing || isHovering) return;
+          if (mounted) showActionsNotifier.value = false;
+        });
+      },
+      child: buildChild(context),
+    );
+    result = Padding(padding: padding, child: result);
+
+    if (widget.showActions && widget.actionBuilder != null) {
+      result = BlockComponentActionWrapper(
+        node: node,
+        actionBuilder: widget.actionBuilder!,
+        child: result,
+      );
+    }
+    return result;
+  }
+
+  Widget buildChild(BuildContext context) {
+    final theme = AppFlowyTheme.of(context),
+        fillSceme = theme.fillColorScheme,
+        borderScheme = theme.borderColorScheme;
+    Widget child;
+    final isIdle = status == EmbedLoadingStatus.idle;
+    if (isIdle) {
+      child = buildContent(context);
+    } else {
+      child = buildErrorLoadingWidget(context);
+    }
+    return Container(
+      height: 450,
+      decoration: BoxDecoration(
+        color: isIdle ? Theme.of(context).cardColor : fillSceme.tertiaryHover,
+        borderRadius: BorderRadius.all(Radius.circular(16)),
+        border: Border.all(color: borderScheme.greyTertiary),
+      ),
+      child: Stack(
+        children: [
+          child,
+          buildMenu(context),
+        ],
+      ),
+    );
+  }
+
+  Widget buildMenu(BuildContext context) {
+    return Positioned(
+      top: 12,
+      right: 12,
+      child: ValueListenableBuilder<bool>(
+        valueListenable: showActionsNotifier,
+        builder: (context, showActions, child) {
+          if (!showActions) return SizedBox.shrink();
+          return LinkEmbedMenu(
+            editorState: context.read<EditorState>(),
+            node: node,
+            onReload: () {
+              setState(() {
+                status = EmbedLoadingStatus.loading;
+              });
+              Future.delayed(const Duration(milliseconds: 200), () {
+                if (mounted) parser.start(url);
+              });
+            },
+            onMenuShowed: () {
+              isMenuShowing = true;
+            },
+            onMenuHided: () {
+              isMenuShowing = false;
+              if (!isHovering && mounted) {
+                showActionsNotifier.value = false;
+              }
+            },
+          );
+        },
+      ),
+    );
+  }
+
+  Widget buildContent(BuildContext context) {
+    final theme = AppFlowyTheme.of(context), textScheme = theme.textColorScheme;
+    return Column(
+      crossAxisAlignment: CrossAxisAlignment.start,
+      children: [
+        Expanded(
+          child: ClipRRect(
+            borderRadius: const BorderRadius.vertical(top: Radius.circular(16)),
+            child: FlowyNetworkImage(
+              url: linkInfo.imageUrl ?? '',
+              width: double.infinity,
+            ),
+          ),
+        ),
+        Container(
+          height: 64,
+          padding: const EdgeInsets.symmetric(vertical: 12, horizontal: 20),
+          child: Row(
+            children: [
+              SizedBox.square(
+                dimension: 40,
+                child: Center(
+                  child: linkInfo.buildIconWidget(size: Size.square(32)),
+                ),
+              ),
+              HSpace(12),
+              Column(
+                crossAxisAlignment: CrossAxisAlignment.start,
+                mainAxisSize: MainAxisSize.min,
+                children: [
+                  FlowyText(
+                    linkInfo.siteName ?? '',
+                    color: textScheme.primary,
+                    fontSize: 14,
+                    figmaLineHeight: 20,
+                    fontWeight: FontWeight.w600,
+                    overflow: TextOverflow.ellipsis,
+                  ),
+                  VSpace(4),
+                  FlowyText.regular(
+                    url,
+                    color: textScheme.secondary,
+                    fontSize: 12,
+                    figmaLineHeight: 16,
+                    overflow: TextOverflow.ellipsis,
+                  ),
+                ],
+              ),
+            ],
+          ),
+        ),
+      ],
+    );
+  }
+
+  Widget buildErrorLoadingWidget(BuildContext context) {
+    final theme = AppFlowyTheme.of(context), textSceme = theme.textColorScheme;
+    final isLoading = status == EmbedLoadingStatus.loading;
+    return isLoading
+        ? Center(
+            child: SizedBox.square(
+              dimension: 64,
+              child: CircularProgressIndicator.adaptive(),
+            ),
+          )
+        : Center(
+            child: Column(
+              mainAxisSize: MainAxisSize.min,
+              children: [
+                SvgPicture.asset(
+                  FlowySvgs.embed_error_xl.path,
+                ),
+                VSpace(4),
+                Padding(
+                  padding: const EdgeInsets.symmetric(horizontal: 24),
+                  child: RichText(
+                    maxLines: 1,
+                    overflow: TextOverflow.ellipsis,
+                    text: TextSpan(
+                      children: [
+                        TextSpan(
+                          text: '$url ',
+                          style: TextStyle(
+                            color: textSceme.primary,
+                            fontSize: 14,
+                            height: 20 / 14,
+                            fontWeight: FontWeight.w700,
+                          ),
+                        ),
+                        TextSpan(
+                          text: LocaleKeys
+                              .document_plugins_linkPreview_linkPreviewMenu_refuseConnect
+                              .tr(),
+                          style: TextStyle(
+                            color: textSceme.primary,
+                            fontSize: 14,
+                            height: 20 / 14,
+                            fontWeight: FontWeight.w400,
+                          ),
+                        ),
+                      ],
+                    ),
+                  ),
+                ),
+              ],
+            ),
+          );
+  }
+}
+
+enum EmbedLoadingStatus { loading, idle, error }

frontend/appflowy_flutter/lib/plugins/document/presentation/editor_plugins/link_embed/link_embed_menu.dart

@@ -0,0 +1,332 @@
+import 'package:appflowy/core/helpers/url_launcher.dart';
+import 'package:appflowy/generated/flowy_svgs.g.dart';
+import 'package:appflowy/generated/locale_keys.g.dart';
+import 'package:appflowy/plugins/document/presentation/editor_plugins/desktop_toolbar/link/link_hover_menu.dart';
+import 'package:appflowy/plugins/document/presentation/editor_plugins/desktop_toolbar/link/link_replace_menu.dart';
+import 'package:appflowy/plugins/document/presentation/editor_plugins/link_preview/paste_as/paste_as_menu.dart';
+import 'package:appflowy/plugins/document/presentation/editor_plugins/link_preview/shared.dart';
+import 'package:appflowy/plugins/document/presentation/editor_plugins/menu/menu_extension.dart';
+import 'package:appflowy_editor/appflowy_editor.dart';
+import 'package:appflowy_editor_plugins/appflowy_editor_plugins.dart';
+import 'package:appflowy_ui/appflowy_ui.dart';
+import 'package:easy_localization/easy_localization.dart';
+import 'package:flowy_infra_ui/flowy_infra_ui.dart';
+import 'package:flutter/widgets.dart';
+
+import 'link_embed_block_component.dart';
+
+class LinkEmbedMenu extends StatefulWidget {
+  const LinkEmbedMenu({
+    super.key,
+    required this.node,
+    required this.editorState,
+    required this.onMenuShowed,
+    required this.onMenuHided,
+    required this.onReload,
+  });
+
+  final Node node;
+  final EditorState editorState;
+  final VoidCallback onMenuShowed;
+  final VoidCallback onMenuHided;
+  final VoidCallback onReload;
+
+  @override
+  State<LinkEmbedMenu> createState() => _LinkEmbedMenuState();
+}
+
+class _LinkEmbedMenuState extends State<LinkEmbedMenu> {
+  final turnintoController = PopoverController();
+  final moreOptionController = PopoverController();
+  int turnintoMenuNum = 0, moreOptionNum = 0, alignMenuNum = 0;
+  final moreOptionButtonKey = GlobalKey();
+  bool get isTurnIntoShowing => turnintoMenuNum > 0;
+  bool get isMoreOptionShowing => moreOptionNum > 0;
+  bool get isAlignMenuShowing => alignMenuNum > 0;
+
+  Node get node => widget.node;
+  EditorState get editorState => widget.editorState;
+
+  String get url => node.attributes[LinkPreviewBlockKeys.url] ?? '';
+
+  @override
+  void dispose() {
+    super.dispose();
+    turnintoController.close();
+    moreOptionController.close();
+    widget.onMenuHided.call();
+  }
+
+  @override
+  Widget build(BuildContext context) {
+    return buildChild();
+  }
+
+  Widget buildChild() {
+    final theme = AppFlowyTheme.of(context),
+        iconScheme = theme.iconColorTheme,
+        fillScheme = theme.fillColorScheme;
+
+    return Container(
+      padding: EdgeInsets.all(4),
+      decoration: BoxDecoration(
+        borderRadius: BorderRadius.circular(16),
+        color: fillScheme.primaryAlpha80,
+      ),
+      child: Row(
+        mainAxisSize: MainAxisSize.min,
+        children: [
+          // FlowyIconButton(
+          //   icon: FlowySvg(
+          //     FlowySvgs.embed_fullscreen_m,
+          //     color: iconScheme.tertiary,
+          //   ),
+          //   tooltipText: LocaleKeys.document_imageBlock_openFullScreen.tr(),
+          //   preferBelow: false,
+          //   onPressed: () {},
+          // ),
+          FlowyIconButton(
+            icon: FlowySvg(
+              FlowySvgs.toolbar_link_m,
+              color: iconScheme.tertiary,
+            ),
+            tooltipText: LocaleKeys.editor_copyLink.tr(),
+            preferBelow: false,
+            onPressed: () => copyLink(context),
+          ),
+          buildTurnIntoBotton(),
+          buildMoreOptionBotton(),
+        ],
+      ),
+    );
+  }
+
+  Widget buildTurnIntoBotton() {
+    final theme = AppFlowyTheme.of(context), iconScheme = theme.iconColorTheme;
+    return AppFlowyPopover(
+      offset: Offset(0, 6),
+      direction: PopoverDirection.bottomWithRightAligned,
+      margin: EdgeInsets.zero,
+      controller: turnintoController,
+      onOpen: () {
+        keepEditorFocusNotifier.increase();
+        turnintoMenuNum++;
+      },
+      onClose: () {
+        keepEditorFocusNotifier.decrease();
+        turnintoMenuNum--;
+        checkToHideMenu();
+      },
+      popupBuilder: (context) => buildTurnIntoMenu(),
+      child: FlowyIconButton(
+        icon: FlowySvg(
+          FlowySvgs.turninto_m,
+          color: iconScheme.tertiary,
+        ),
+        tooltipText: LocaleKeys.document_toolbar_turnInto.tr(),
+        preferBelow: false,
+        onPressed: showTurnIntoMenu,
+      ),
+    );
+  }
+
+  Widget buildTurnIntoMenu() {
+    final types =
+        PasteMenuType.values.where((e) => e != PasteMenuType.embed).toList();
+    return Padding(
+      padding: const EdgeInsets.all(8.0),
+      child: SeparatedColumn(
+        mainAxisSize: MainAxisSize.min,
+        separatorBuilder: () => const VSpace(0.0),
+        children: List.generate(types.length, (index) {
+          final command = types[index];
+          return SizedBox(
+            height: 36,
+            child: FlowyButton(
+              text: FlowyText(
+                command.title,
+                fontWeight: FontWeight.w400,
+                figmaLineHeight: 20,
+              ),
+              onTap: () {
+                if (command == PasteMenuType.bookmark) {
+                  final transaction = editorState.transaction;
+                  transaction.updateNode(node, {
+                    LinkPreviewBlockKeys.url: url,
+                    LinkEmbedKeys.previewType: '',
+                  });
+                  editorState.apply(transaction);
+                } else if (command == PasteMenuType.mention) {
+                  convertUrlPreviewNodeToMention(editorState, node);
+                } else if (command == PasteMenuType.url) {
+                  convertUrlPreviewNodeToLink(editorState, node);
+                }
+              },
+            ),
+          );
+        }),
+      ),
+    );
+  }
+
+  Widget buildMoreOptionBotton() {
+    final theme = AppFlowyTheme.of(context), iconScheme = theme.iconColorTheme;
+    return AppFlowyPopover(
+      offset: Offset(0, 6),
+      direction: PopoverDirection.bottomWithRightAligned,
+      margin: EdgeInsets.zero,
+      controller: moreOptionController,
+      onOpen: () {
+        keepEditorFocusNotifier.increase();
+        moreOptionNum++;
+      },
+      onClose: () {
+        keepEditorFocusNotifier.decrease();
+        moreOptionNum--;
+        checkToHideMenu();
+      },
+      popupBuilder: (context) => buildMoreOptionMenu(),
+      child: FlowyIconButton(
+        key: moreOptionButtonKey,
+        icon: FlowySvg(
+          FlowySvgs.toolbar_more_m,
+          color: iconScheme.tertiary,
+        ),
+        tooltipText: LocaleKeys.document_toolbar_moreOptions.tr(),
+        preferBelow: false,
+        onPressed: showMoreOptionMenu,
+      ),
+    );
+  }
+
+  Widget buildMoreOptionMenu() {
+    final types = LinkEmbedMenuCommand.values;
+    return Padding(
+      padding: const EdgeInsets.all(8.0),
+      child: SeparatedColumn(
+        mainAxisSize: MainAxisSize.min,
+        separatorBuilder: () => const VSpace(0.0),
+        children: List.generate(types.length, (index) {
+          final command = types[index];
+          return SizedBox(
+            height: 36,
+            child: FlowyButton(
+              text: FlowyText(
+                command.title,
+                fontWeight: FontWeight.w400,
+                figmaLineHeight: 20,
+              ),
+              onTap: () => onEmbedMenuCommand(command),
+            ),
+          );
+        }),
+      ),
+    );
+  }
+
+  void showTurnIntoMenu() {
+    keepEditorFocusNotifier.increase();
+    turnintoController.show();
+    checkToShowMenu();
+    turnintoMenuNum++;
+    if (isMoreOptionShowing) closeMoreOptionMenu();
+  }
+
+  void closeTurnIntoMenu() {
+    turnintoController.close();
+    checkToHideMenu();
+  }
+
+  void showMoreOptionMenu() {
+    keepEditorFocusNotifier.increase();
+    moreOptionController.show();
+    checkToShowMenu();
+    moreOptionNum++;
+    if (isTurnIntoShowing) closeTurnIntoMenu();
+  }
+
+  void closeMoreOptionMenu() {
+    moreOptionController.close();
+    checkToHideMenu();
+  }
+
+  void checkToHideMenu() {
+    Future.delayed(Duration(milliseconds: 200), () {
+      if (!mounted) return;
+      if (!isAlignMenuShowing && !isMoreOptionShowing && !isTurnIntoShowing) {
+        widget.onMenuHided.call();
+      }
+    });
+  }
+
+  void checkToShowMenu() {
+    if (!isAlignMenuShowing && !isMoreOptionShowing && !isTurnIntoShowing) {
+      widget.onMenuShowed.call();
+    }
+  }
+
+  Future<void> copyLink(BuildContext context) async {
+    await context.copyLink(url);
+    widget.onMenuHided.call();
+  }
+
+  void onEmbedMenuCommand(LinkEmbedMenuCommand command) {
+    switch (command) {
+      case LinkEmbedMenuCommand.openLink:
+        afLaunchUrlString(url, addingHttpSchemeWhenFailed: true);
+        break;
+      case LinkEmbedMenuCommand.replace:
+        final box = moreOptionButtonKey.currentContext?.findRenderObject()
+            as RenderBox?;
+        if (box == null) return;
+        final p = box.localToGlobal(Offset.zero);
+        showReplaceMenu(
+          context: context,
+          editorState: editorState,
+          node: node,
+          url: url,
+          ltrb: LTRB(left: p.dx - 330, top: p.dy),
+          onReplace: (url) async {
+            await convertLinkBlockToOtherLinkBlock(
+              editorState,
+              node,
+              node.type,
+              url: url,
+            );
+          },
+        );
+        break;
+      case LinkEmbedMenuCommand.reload:
+        widget.onReload.call();
+        break;
+      case LinkEmbedMenuCommand.removeLink:
+        removeUrlPreviewLink(editorState, node);
+        break;
+    }
+    closeMoreOptionMenu();
+  }
+}
+
+enum LinkEmbedMenuCommand {
+  openLink,
+  replace,
+  reload,
+  removeLink;
+
+  String get title {
+    switch (this) {
+      case openLink:
+        return LocaleKeys.editor_openLink.tr();
+      case replace:
+        return LocaleKeys.document_plugins_linkPreview_linkPreviewMenu_replace
+            .tr();
+      case reload:
+        return LocaleKeys.document_plugins_linkPreview_linkPreviewMenu_reload
+            .tr();
+      case removeLink:
+        return LocaleKeys
+            .document_plugins_linkPreview_linkPreviewMenu_removeLink
+            .tr();
+    }
+  }
+}

frontend/appflowy_flutter/lib/plugins/document/presentation/editor_plugins/link_embed/link_embed_widget.dart

@@ -1,29 +0,0 @@
-import 'package:appflowy/plugins/document/presentation/editor_plugins/link_preview/custom_link_preview.dart';
-import 'package:appflowy_editor/appflowy_editor.dart';
-import 'package:flutter/material.dart';
-
-class LinkEmbedWidget extends StatelessWidget {
-  const LinkEmbedWidget({
-    super.key,
-    required this.node,
-    required this.url,
-    this.title,
-    this.description,
-    this.imageUrl,
-    this.isHovering = false,
-    this.status = LinkPreviewStatus.loading,
-  });
-
-  final Node node;
-  final String? title;
-  final String? description;
-  final String? imageUrl;
-  final String url;
-  final bool isHovering;
-  final LinkPreviewStatus status;
-
-  @override
-  Widget build(BuildContext context) {
-    return Container();
-  }
-}

frontend/appflowy_flutter/lib/plugins/document/presentation/editor_plugins/link_preview/custom_link_parser.dart

@@ -0,0 +1,130 @@
+import 'dart:convert';
+import 'package:appflowy/core/config/kv.dart';
+import 'package:appflowy/generated/flowy_svgs.g.dart';
+import 'package:appflowy/shared/appflowy_network_image.dart';
+import 'package:appflowy/shared/appflowy_network_svg.dart';
+import 'package:appflowy/startup/startup.dart';
+import 'package:appflowy_backend/log.dart';
+import 'package:favicon/favicon.dart';
+import 'package:flutter/material.dart';
+// ignore: depend_on_referenced_packages
+import 'package:flutter_link_previewer/flutter_link_previewer.dart' hide Size;
+
+class LinkParser {
+  static final LinkInfoCache _cache = LinkInfoCache();
+  final Set<ValueChanged<LinkInfo>> _listeners = <ValueChanged<LinkInfo>>{};
+
+  Future<void> start(String url) async {
+    final data = await _cache.get(url);
+    if (data != null) {
+      refreshLinkInfo(data);
+    }
+    await _getLinkInfo(url);
+  }
+
+  Future<LinkInfo?> _getLinkInfo(String url) async {
+    try {
+      final previewData = await getPreviewData(url);
+      final favicon = await FaviconFinder.getBest(url);
+      final linkInfo = LinkInfo(
+        siteName: previewData.title,
+        description: previewData.description,
+        imageUrl: previewData.image?.url,
+        faviconUrl: favicon?.url,
+      );
+      await _cache.set(url, linkInfo);
+      refreshLinkInfo(linkInfo);
+      return linkInfo;
+    } catch (e, s) {
+      Log.error('get link info error: ', e, s);
+      return null;
+    }
+  }
+
+  void refreshLinkInfo(LinkInfo info) {
+    for (final listener in _listeners) {
+      listener(info);
+    }
+  }
+
+  void addLinkInfoListener(ValueChanged<LinkInfo> listener) {
+    _listeners.add(listener);
+  }
+
+  void dispose() {
+    _listeners.clear();
+  }
+}
+
+class LinkInfo {
+  factory LinkInfo.fromJson(Map<String, dynamic> json) => LinkInfo(
+        siteName: json['siteName'],
+        description: json['description'],
+        imageUrl: json['imageUrl'],
+        faviconUrl: json['faviconUrl'],
+      );
+
+  LinkInfo({
+    this.siteName,
+    this.description,
+    this.imageUrl,
+    this.faviconUrl,
+  });
+
+  final String? siteName;
+  final String? description;
+  final String? imageUrl;
+  final String? faviconUrl;
+
+  Map<String, dynamic> toJson() => {
+        'siteName': siteName,
+        'description': description,
+        'imageUrl': imageUrl,
+        'faviconUrl': faviconUrl,
+      };
+
+  bool isEmpty() {
+    return siteName == null ||
+        description == null ||
+        imageUrl == null ||
+        faviconUrl == null;
+  }
+
+  Widget buildIconWidget({Size size = const Size.square(20.0)}) {
+    final iconUrl = faviconUrl;
+    if (iconUrl == null) {
+      return FlowySvg(FlowySvgs.toolbar_link_earth_m, size: size);
+    }
+    if (iconUrl.endsWith('.svg')) {
+      return FlowyNetworkSvg(
+        iconUrl,
+        height: size.height,
+        errorWidget: const FlowySvg(FlowySvgs.toolbar_link_earth_m),
+      );
+    }
+    return FlowyNetworkImage(
+      url: iconUrl,
+      fit: BoxFit.contain,
+      height: size.height,
+      errorWidgetBuilder: (context, error, stackTrace) =>
+          const FlowySvg(FlowySvgs.toolbar_link_earth_m),
+    );
+  }
+}
+
+class LinkInfoCache {
+  Future<LinkInfo?> get(String url) async {
+    final option = await getIt<KeyValueStorage>().getWithFormat<LinkInfo?>(
+      url,
+      (value) => LinkInfo.fromJson(jsonDecode(value)),
+    );
+    return option;
+  }
+
+  Future<void> set(String url, LinkInfo data) async {
+    await getIt<KeyValueStorage>().set(
+      url,
+      jsonEncode(data.toJson()),
+    );
+  }
+}

frontend/appflowy_flutter/lib/plugins/document/presentation/editor_plugins/link_preview/custom_link_preview.dart

@@ -54,8 +54,8 @@ class CustomLinkPreviewWidget extends StatelessWidget {
       decoration: BoxDecoration(
         border: Border.all(
           color: isHovering
-              ? borderScheme.greyPrimaryHover
+              ? borderScheme.greyTertiaryHover
-              : borderScheme.greyPrimary,
+              : borderScheme.greyTertiary,
         ),
         borderRadius: BorderRadius.circular(16.0),
       ),
@@ -177,7 +177,7 @@ class CustomLinkPreviewWidget extends StatelessWidget {
       ),
       child: Container(
         width: width,
-        color: fillScheme.primary,
+        color: fillScheme.quaternary,
         child: child,
       ),
     );

frontend/appflowy_flutter/lib/plugins/document/presentation/editor_plugins/link_preview/custom_link_preview_block_component.dart

@@ -1,3 +1,4 @@
+import 'package:appflowy/plugins/document/presentation/editor_plugins/link_embed/link_embed_block_component.dart';
 import 'package:appflowy_editor/appflowy_editor.dart';
 import 'package:appflowy_editor_plugins/appflowy_editor_plugins.dart';
 import 'package:flutter/material.dart';
@@ -16,6 +17,18 @@ class CustomLinkPreviewBlockComponentBuilder extends BlockComponentBuilder {
   @override
   BlockComponentWidget build(BlockComponentContext blockComponentContext) {
     final node = blockComponentContext.node;
+    final isEmbed =
+        node.attributes[LinkEmbedKeys.previewType] == LinkEmbedKeys.embed;
+    if (isEmbed) {
+      return LinkEmbedBlockComponent(
+        key: node.key,
+        node: node,
+        configuration: configuration,
+        showActions: showActions(node),
+        actionBuilder: (_, state) =>
+            actionBuilder(blockComponentContext, state),
+      );
+    }
     return CustomLinkPreviewBlockComponent(
       key: node.key,
       node: node,

frontend/appflowy_flutter/lib/plugins/document/presentation/editor_plugins/link_preview/link_preview_menu.dart

@@ -34,6 +34,7 @@ class _CustomLinkPreviewMenuState extends State<CustomLinkPreviewMenu> {
   final popoverController = PopoverController();
   final buttonKey = GlobalKey();
   bool closed = false;
+  bool selected = false;
 
   @override
   void dispose() {
@@ -59,10 +60,14 @@ class _CustomLinkPreviewMenuState extends State<CustomLinkPreviewMenu> {
           closed = false;
           widget.onMenuHided.call();
         }
+        setState(() {
+          selected = false;
+        });
       },
       popupBuilder: (context) => buildMenu(),
       child: FlowyIconButton(
         key: buttonKey,
+        isSelected: selected,
         icon: FlowySvg(FlowySvgs.toolbar_more_m),
         onPressed: showPopover,
       ),
@@ -161,6 +166,9 @@ class _CustomLinkPreviewMenuState extends State<CustomLinkPreviewMenu> {
     widget.onMenuShowed.call();
     keepEditorFocusNotifier.increase();
     popoverController.show();
+    setState(() {
+      selected = true;
+    });
   }
 
   void closePopover() {

frontend/appflowy_flutter/lib/plugins/document/presentation/editor_plugins/link_preview/paste_as/paste_as_menu.dart

@@ -227,7 +227,7 @@ enum PasteMenuType {
   embed,
 }
 
-extension on PasteMenuType {
+extension PasteMenuTypeExtension on PasteMenuType {
   String get title {
     switch (this) {
       case PasteMenuType.mention:

frontend/appflowy_flutter/lib/plugins/document/presentation/editor_plugins/link_preview/shared.dart

@@ -119,7 +119,8 @@ Future<void> convertUrlToLinkPreview(
         linkEmbedNode(url: url)
       else
         linkPreviewNode(url: url),
-      paragraphNode(delta: Delta(operations: afterOperations)),
+      if (afterOperations.isNotEmpty)
+        paragraphNode(delta: Delta(operations: afterOperations)),
     ]);
   await editorState.apply(transaction);
 }
@@ -176,10 +177,12 @@ Future<void> convertLinkBlockToOtherLinkBlock(
   final insertedNode = <Node>[];
 
   final afterUrl = url ?? node.attributes[LinkPreviewBlockKeys.url] ?? '';
+  final previewType = node.attributes[LinkEmbedKeys.previewType];
   Node afterNode = node.copyWith(
     type: toType,
     attributes: {
       LinkPreviewBlockKeys.url: afterUrl,
+      LinkEmbedKeys.previewType: previewType,
       blockComponentBackgroundColor:
           node.attributes[blockComponentBackgroundColor],
       blockComponentTextDirection: node.attributes[blockComponentTextDirection],

frontend/appflowy_flutter/lib/plugins/document/presentation/editor_plugins/mention/mention_link_block.dart

@@ -1,28 +1,18 @@
 import 'dart:async';
-import 'dart:convert';
 import 'dart:math';
-
-import 'package:appflowy/core/config/kv.dart';
 import 'package:appflowy/core/helpers/url_launcher.dart';
 import 'package:appflowy/generated/flowy_svgs.g.dart';
-import 'package:appflowy/generated/locale_keys.g.dart';
+import 'package:appflowy/plugins/document/presentation/editor_plugins/desktop_toolbar/link/link_hover_menu.dart';
-import 'package:appflowy/plugins/document/presentation/editor_plugins/copy_and_paste/clipboard_service.dart';
+import 'package:appflowy/plugins/document/presentation/editor_plugins/link_embed/link_embed_block_component.dart';
+import 'package:appflowy/plugins/document/presentation/editor_plugins/link_preview/custom_link_parser.dart';
 import 'package:appflowy/plugins/document/presentation/editor_plugins/link_preview/paste_as/paste_as_menu.dart';
 import 'package:appflowy/plugins/document/presentation/editor_plugins/link_preview/shared.dart';
-import 'package:appflowy/shared/appflowy_network_svg.dart';
-import 'package:appflowy/startup/startup.dart';
-import 'package:appflowy/workspace/presentation/widgets/dialogs.dart';
-import 'package:appflowy_backend/log.dart';
 import 'package:appflowy_editor/appflowy_editor.dart';
 import 'package:appflowy_ui/appflowy_ui.dart';
-import 'package:easy_localization/easy_localization.dart';
-import 'package:favicon/favicon.dart';
 import 'package:flowy_infra_ui/flowy_infra_ui.dart';
 import 'package:flowy_infra_ui/style_widget/hover.dart';
 import 'package:flutter/material.dart';
 import 'package:flutter/services.dart';
-// ignore: depend_on_referenced_packages
-import 'package:flutter_link_previewer/flutter_link_previewer.dart' hide Size;
 
 import 'mention_link_error_preview.dart';
 import 'mention_link_preview.dart';
@@ -55,11 +45,12 @@ class _MentionLinkBlockState extends State<MentionLinkBlock> {
   final previewController = PopoverController();
   LinkInfo? linkInfo;
   bool isHovering = false;
-  bool isPreviewShowing = false;
+  int previewFocusNum = 0;
   bool isPreviewHovering = false;
   bool showAtBottom = false;
   final key = GlobalKey();
 
+  bool get isPreviewShowing => previewFocusNum > 0;
   String get url => widget.url;
 
   EditorState get editorState => widget.editorState;
@@ -100,6 +91,7 @@ class _MentionLinkBlockState extends State<MentionLinkBlock> {
   @override
   Widget build(BuildContext context) {
     return AppFlowyPopover(
+      key: ValueKey(showAtBottom),
       controller: previewController,
       direction: showAtBottom
           ? PopoverDirection.bottomWithLeftAligned
@@ -107,11 +99,11 @@ class _MentionLinkBlockState extends State<MentionLinkBlock> {
       offset: Offset(0, showAtBottom ? -20 : 20),
       onOpen: () {
         keepEditorFocusNotifier.increase();
-        isPreviewShowing = true;
+        previewFocusNum++;
       },
       onClose: () {
         keepEditorFocusNotifier.decrease();
-        isPreviewShowing = false;
+        previewFocusNum--;
       },
       decorationColor: Colors.transparent,
       popoverDecoration: BoxDecoration(),
@@ -201,26 +193,8 @@ class _MentionLinkBlockState extends State<MentionLinkBlock> {
         padding: const EdgeInsets.all(2.0),
         child: const CircularProgressIndicator(strokeWidth: 1),
       );
-    } else if (status == _LoadingStatus.error) {
-      icon = defaultWidget;
     } else {
-      final faviconUrl = linkInfo?.faviconUrl;
+      icon = linkInfo?.buildIconWidget() ?? defaultWidget;
-      if (faviconUrl != null) {
-        if (faviconUrl.endsWith('.svg')) {
-          icon = FlowyNetworkSvg(
-            faviconUrl,
-            height: 20,
-            errorWidget: defaultWidget,
-          );
-        } else {
-          icon = Image.network(
-            faviconUrl,
-            fit: BoxFit.contain,
-            height: 20,
-            errorBuilder: (context, error, stackTrace) => defaultWidget,
-          );
-        }
-      }
     }
     return SizedBox(
       height: 20,
@@ -234,14 +208,7 @@ class _MentionLinkBlockState extends State<MentionLinkBlock> {
   Size getSizeFromKey() => box?.size ?? Size.zero;
 
   Future<void> copyLink(BuildContext context) async {
-    await getIt<ClipboardService>()
+    await context.copyLink(url);
-        .setData(ClipboardServiceData(plainText: url));
-    if (context.mounted) {
-      showToastNotification(
-        context,
-        message: LocaleKeys.shareAction_copyLinkSuccess.tr(),
-      );
-    }
     previewController.close();
   }
 
@@ -260,6 +227,8 @@ class _MentionLinkBlockState extends State<MentionLinkBlock> {
       await toUrl();
     } else if (type == PasteMenuType.bookmark) {
       await toLinkPreview();
+    } else if (type == PasteMenuType.embed) {
+      await toLinkPreview(previewType: LinkEmbedKeys.embed);
     }
   }
 
@@ -277,7 +246,7 @@ class _MentionLinkBlockState extends State<MentionLinkBlock> {
     await editorState.apply(transaction);
   }
 
-  Future<void> toLinkPreview() async {
+  Future<void> toLinkPreview({String? previewType}) async {
     final selection = Selection(
       start: Position(path: node.path, offset: index),
       end: Position(path: node.path, offset: index + 1),
@@ -286,11 +255,8 @@ class _MentionLinkBlockState extends State<MentionLinkBlock> {
       editorState,
       selection,
       url,
+      previewType: previewType,
     );
-    // final transaction = editorState.transaction
-    //   ..deleteText(node, index, 1)
-    //   ..insertNode(node.path, linkPreviewNode(url: url));
-    // await editorState.apply(transaction);
   }
 
   void changeHovering(bool hovering) {
@@ -320,14 +286,6 @@ class _MentionLinkBlockState extends State<MentionLinkBlock> {
     });
   }
 
-  void showPreview() {
-    if (isPreviewShowing || !mounted) {
-      return;
-    }
-    keepEditorFocusNotifier.increase();
-    previewController.show();
-  }
-
   void onEnter(PointerEnterEvent e) {
     changeHovering(true);
     final location = box?.localToGlobal(Offset.zero) ?? Offset.zero;
@@ -350,6 +308,13 @@ class _MentionLinkBlockState extends State<MentionLinkBlock> {
     tryToDismissPreview();
   }
 
+  void showPreview() {
+    if (!mounted) return;
+    keepEditorFocusNotifier.increase();
+    previewController.show();
+    previewFocusNum++;
+  }
+
   BoxConstraints getConstraints() {
     final size = getSizeFromKey();
     if (!readyForPreview) {
@@ -365,124 +330,6 @@ class _MentionLinkBlockState extends State<MentionLinkBlock> {
   }
 }
 
-class LinkParser {
-  static final LinkInfoCache _cache = LinkInfoCache();
-  final Set<ValueChanged<LinkInfo>> _listeners = <ValueChanged<LinkInfo>>{};
-
-  Future<void> start(String url) async {
-    final data = await _cache.get(url);
-    if (data != null) {
-      refreshLinkInfo(data);
-    }
-    await _getLinkInfo(url);
-  }
-
-  Future<LinkInfo?> _getLinkInfo(String url) async {
-    try {
-      final previewData = await getPreviewData(url);
-      final favicon = await FaviconFinder.getBest(url);
-      final linkInfo = LinkInfo(
-        siteName: previewData.title,
-        description: previewData.description,
-        imageUrl: previewData.image?.url,
-        faviconUrl: favicon?.url,
-      );
-      await _cache.set(url, linkInfo);
-      refreshLinkInfo(linkInfo);
-      return linkInfo;
-    } catch (e, s) {
-      Log.error('get link info error: ', e, s);
-      return null;
-    }
-  }
-
-  void refreshLinkInfo(LinkInfo info) {
-    for (final listener in _listeners) {
-      listener(info);
-    }
-  }
-
-  void addLinkInfoListener(ValueChanged<LinkInfo> listener) {
-    _listeners.add(listener);
-  }
-
-  void dispose() {
-    _listeners.clear();
-  }
-}
-
-class LinkInfo {
-  factory LinkInfo.fromJson(Map<String, dynamic> json) => LinkInfo(
-        siteName: json['siteName'],
-        description: json['description'],
-        imageUrl: json['imageUrl'],
-        faviconUrl: json['faviconUrl'],
-      );
-
-  LinkInfo({
-    this.siteName,
-    this.description,
-    this.imageUrl,
-    this.faviconUrl,
-  });
-
-  final String? siteName;
-  final String? description;
-  final String? imageUrl;
-  final String? faviconUrl;
-
-  Map<String, dynamic> toJson() => {
-        'siteName': siteName,
-        'description': description,
-        'imageUrl': imageUrl,
-        'faviconUrl': faviconUrl,
-      };
-
-  bool isEmpty() {
-    return siteName == null ||
-        description == null ||
-        imageUrl == null ||
-        faviconUrl == null;
-  }
-
-  Widget getIconWidget({Size size = const Size.square(20.0)}) {
-    if (faviconUrl == null) {
-      return FlowySvg(FlowySvgs.toolbar_link_earth_m, size: size);
-    }
-    if (faviconUrl!.endsWith('.svg')) {
-      return FlowyNetworkSvg(
-        faviconUrl!,
-        height: size.height,
-        errorWidget: const FlowySvg(FlowySvgs.toolbar_link_earth_m),
-      );
-    }
-    return Image.network(
-      faviconUrl!,
-      fit: BoxFit.contain,
-      height: size.height,
-      errorBuilder: (context, error, stackTrace) =>
-          const FlowySvg(FlowySvgs.toolbar_link_earth_m),
-    );
-  }
-}
-
-class LinkInfoCache {
-  Future<LinkInfo?> get(String url) async {
-    final option = await getIt<KeyValueStorage>().getWithFormat<LinkInfo?>(
-      url,
-      (value) => LinkInfo.fromJson(jsonDecode(value)),
-    );
-    return option;
-  }
-
-  Future<void> set(String url, LinkInfo data) async {
-    await getIt<KeyValueStorage>().set(
-      url,
-      jsonEncode(data.toJson()),
-    );
-  }
-}
-
 enum _LoadingStatus {
   loading,
   idle,

frontend/appflowy_flutter/lib/plugins/document/presentation/editor_plugins/mention/mention_link_preview.dart

@@ -1,6 +1,7 @@
 import 'package:appflowy/generated/flowy_svgs.g.dart';
 import 'package:appflowy/generated/locale_keys.g.dart';
 import 'package:appflowy/plugins/document/presentation/editor_plugins/desktop_toolbar/link/link_create_menu.dart';
+import 'package:appflowy/plugins/document/presentation/editor_plugins/link_preview/custom_link_parser.dart';
 import 'package:appflowy/plugins/document/presentation/editor_plugins/link_preview/paste_as/paste_as_menu.dart';
 import 'package:appflowy/plugins/document/presentation/editor_style.dart';
 import 'package:appflowy/shared/appflowy_network_image.dart';
@@ -11,8 +12,6 @@ import 'package:flowy_infra_ui/flowy_infra_ui.dart';
 import 'package:flutter/material.dart';
 import 'package:flutter/services.dart';
 
-import 'mention_link_block.dart';
-
 class MentionLinkPreview extends StatefulWidget {
   const MentionLinkPreview({
     super.key,
@@ -106,7 +105,7 @@ class _MentionLinkPreviewState extends State<MentionLinkPreview> {
               height: 28,
               child: Row(
                 children: [
-                  linkInfo.getIconWidget(size: Size.square(16)),
+                  linkInfo.buildIconWidget(size: Size.square(16)),
                   HSpace(6),
                   Expanded(
                     child: FlowyText(

frontend/resources/flowy_icons/20x/embed_fullscreen.svg

@@ -0,0 +1,3 @@
+<svg width="20" height="20" viewBox="0 0 20 20" fill="none" xmlns="http://www.w3.org/2000/svg">
+<path d="M8.36379 11.6362L4 16M4 16H7.65133M4 16V12.3487M11.6362 8.36379L16 4M16 4H12.3487M16 4V7.65133" stroke="#B5BBD3" stroke-linecap="round" stroke-linejoin="round"/>
+</svg>

frontend/resources/flowy_icons/40x/embed_error.svg

@@ -0,0 +1,7 @@
+<svg width="64" height="64" fill="none" xmlns="http://www.w3.org/2000/svg">
+    <path fill-rule="evenodd" clip-rule="evenodd" d="M18 8a4 4 0 0 0-4 4v40a4 4 0 0 0 4 4h28a4 4 0 0 0 4-4V20L38 8H18Z" fill="#fff"/>
+    <rect x="24" y="24" width="3" height="6" rx="1.5" fill="#D3D8E1"/>
+    <rect x="37" y="24" width="3" height="6" rx="1.5" fill="#D3D8E1"/>
+    <path d="m38 8 12 12H40a2 2 0 0 1-2-2V8Z" fill="#D3D8E1"/>
+    <path fill-rule="evenodd" clip-rule="evenodd" d="M38 40a6 6 0 0 0-12 0h12Z" fill="#D3D8E1"/>
+</svg>

frontend/resources/translations/en.json

@@ -2027,7 +2027,8 @@
           "replace": "Replace",
           "reload": "Reload",
           "removeLink": "Remove Link",
-          "pasteHint": "Paste in https://..."
+          "pasteHint": "Paste in https://...",
+          "refuseConnect": "refued to connect."
         }
       }
     },