added action bar for selected bookmark item

lib/pages/collection_page.dart

@@ -9,6 +9,7 @@ import '../service/notifying.dart';
 import '../service/shared_link_provider.dart';
 import '../service/storage.dart';
 import '../service/url_launcher.dart';
+import '../widgets/collection_page_widgets/list_item_actions_widget.dart';
 import '../widgets/create_bookmark_dialog.dart';
 
 class CollectionPage extends StatefulWidget {
@@ -22,6 +23,7 @@ class CollectionPage extends StatefulWidget {
 
 class _CollectionPageState extends State<CollectionPage> {
   MapsLinkMetadata? selectedMapsLink;
+  int selectedBookmarkId = -1;
 
   @override
   void initState() {
@@ -52,29 +54,46 @@ class _CollectionPageState extends State<CollectionPage> {
         ).whenComplete(() => setState(() {}));
       },
     ),
-  );
+  ).whenComplete(deselectBookmark);
 
   void onBookmarkSaved(Bookmark bookmark) {
     Storage.addOrUpdateBookmark(bookmark);
     setState(() {});
-    context.read<SharedLinkProvider>().removeCurrentMapsLink();
+    Provider.of<SharedLinkProvider>(
+      context,
+      listen: false,
+    ).removeCurrentMapsLink();
   }
 
   Widget bookmarksListItemBuilder(BuildContext context, Bookmark bookmark) {
+    final selected = selectedBookmarkId == bookmark.id;
     return ListTile(
       title: Text(bookmark.name),
-      onTap: () => launchUrlFromString(bookmark.link).then((errorCode) {
+      selected: selected,
+      onTap: () {
+        if (selected) {
+          onCancelSelectionPressed();
+          setState(() {});
+        } else if (selectedBookmarkId != -1 && !selected) {
+          selectedBookmarkId = bookmark.id;
+          setState(() {});
+        } else {
+          launchUrlFromString(bookmark.link).then((errorCode) {
             if (context.mounted) {
               return Notifying.showUrlErrorSnackbar(context, errorCode);
             }
+          });
+        }
+      },
+      onLongPress: () => setState(() {
+        selectedBookmarkId = bookmark.id;
       }),
-      onLongPress: () => editBookmark(bookmark),
     );
   }
 
   @override
   Widget build(BuildContext context) {
-    SharedLinkProvider provider = context.watch<SharedLinkProvider>();
+    SharedLinkProvider provider = Provider.of<SharedLinkProvider>(context);
     selectedMapsLink = provider.currentMapsLinkMetadata;
 
     if (BookmarksProvider.selectedCollectionId == null) {
@@ -87,11 +106,18 @@ class _CollectionPageState extends State<CollectionPage> {
       (c) => c.id == BookmarksProvider.selectedCollectionId,
     );
 
-    return Scaffold(
+    return PopScope(
+      canPop: selectedBookmarkId == -1,
+      onPopInvokedWithResult: (didPop, result) {
+        if (didPop == false) deselectBookmark();
+      },
+      child: Scaffold(
         appBar: AppBar(
           title: selectedMapsLink != null
               ? Text(
-                AppLocalizations.of(context)!.addToCollection(collection.name),
+                  AppLocalizations.of(
+                    context,
+                  )!.addToCollection(collection.name),
                 )
               : Text(collection.name),
           actions: [
@@ -102,6 +128,17 @@ class _CollectionPageState extends State<CollectionPage> {
               ),
           ],
         ),
+        bottomNavigationBar: selectedBookmarkId > 0
+            ? ListItemActionsWidget(
+                onDeletePressed: onDeleteBookmarkPressed,
+                onCancelPressed: onCancelSelectionPressed,
+                onEditPressed: () => editBookmark(
+                  bookmarks.firstWhere(
+                    (element) => element.id == selectedBookmarkId,
+                  ),
+                ),
+              )
+            : null,
         body: Center(
           child: SizedBox(
             width: MediaQuery.of(context).size.width * 0.9,
@@ -117,6 +154,21 @@ class _CollectionPageState extends State<CollectionPage> {
           onPressed: onAddButtonPressed,
           child: Icon(selectedMapsLink != null ? Icons.save : Icons.add),
         ),
+      ),
     );
   }
+
+  void onCancelSelectionPressed() => deselectBookmark();
+
+  void onDeleteBookmarkPressed() {
+    Storage.deleteBookmarkById(
+      selectedBookmarkId,
+    ).whenComplete(() => setState(() {}));
+    deselectBookmark();
+  }
+
+  void deselectBookmark() {
+    selectedBookmarkId = -1;
+    setState(() {});
+  }
 }

lib/pages/collections_list_page.dart

@@ -87,7 +87,8 @@ class _CollectionsListPageState extends State<CollectionsListPage> {
     final collections = Storage.loadCollections();
     bookmarkCountMap = Storage.loadPerCollectionBookmarkCount();
     addingNewBookmark =
-        context.watch<SharedLinkProvider>().currentMapsLinkMetadata != null;
+        Provider.of<SharedLinkProvider>(context).currentMapsLinkMetadata !=
+        null;
     return Scaffold(
       appBar: AppBar(
         title: addingNewBookmark
@@ -96,8 +97,10 @@ class _CollectionsListPageState extends State<CollectionsListPage> {
         actions: [
           if (addingNewBookmark)
             TextButton(
-              onPressed: () =>
+              onPressed: () => Provider.of<SharedLinkProvider>(
-                  context.read<SharedLinkProvider>().removeCurrentMapsLink(),
+                context,
+                listen: false,
+              ).removeCurrentMapsLink(),
               child: Text(AppLocalizations.of(context)!.cancel),
             )
           else

lib/widgets/collection_page_widgets/list_item_actions_widget.dart

@@ -0,0 +1,53 @@
+import 'package:flutter/material.dart';
+
+class ListItemActionsWidget extends StatelessWidget {
+  final VoidCallback _onDeletePressed;
+  final VoidCallback _onCancelPressed;
+  final VoidCallback _onEditPressed;
+
+  const ListItemActionsWidget({
+    super.key,
+    required void Function() onDeletePressed,
+    required void Function() onCancelPressed,
+    required void Function() onEditPressed,
+  }) : _onEditPressed = onEditPressed,
+       _onCancelPressed = onCancelPressed,
+       _onDeletePressed = onDeletePressed;
+
+  @override
+  Widget build(BuildContext context) {
+    return Container(
+      padding: EdgeInsetsGeometry.fromLTRB(
+        10,
+        10,
+        10,
+        MediaQuery.of(context).viewPadding.bottom,
+      ),
+      color: Theme.of(context).colorScheme.surfaceContainer,
+      child: Row(
+        mainAxisAlignment: MainAxisAlignment.spaceBetween,
+        crossAxisAlignment: CrossAxisAlignment.start,
+        children: [
+          IconButton(
+            onPressed: _onCancelPressed,
+            icon: const Icon(Icons.close_rounded),
+          ),
+          Row(
+            mainAxisAlignment: MainAxisAlignment.end,
+            mainAxisSize: MainAxisSize.min,
+            children: [
+              IconButton(
+                onPressed: _onDeletePressed,
+                icon: const Icon(Icons.delete_forever_rounded),
+              ),
+              IconButton(
+                onPressed: _onEditPressed,
+                icon: const Icon(Icons.edit_rounded),
+              ),
+            ],
+          ),
+        ],
+      ),
+    );
+  }
+}