homepage: selection of notes: select all, deselect all, toggle select. Select on longpress

lib/components/storage.dart

@@ -24,7 +24,7 @@ class CounterStorage {
       final directory = await localDir();
       await directory.list().forEach((element) {
         files.add(File(element.path));
-        debugPrint("debugPrinting $element");
+        // debugPrint("debugPrinting $element");
       });
 
       return files;

lib/screens/home/components/MyListTile.dart

@@ -10,13 +10,21 @@ class MyListTile extends StatefulWidget {
       {Key? key,
       required this.file,
       required this.storage,
-      required this.function,
-      required this.selectMode})
+      required this.updateFunction,
+      required this.deleteFunction,
+      required this.toggleFunction,
+      required this.selectFunction,
+      required this.selectMode,
+      required this.isChecked})
       : super(key: key);
   final File file;
   final CounterStorage storage;
-  final Function function;
+  final Function updateFunction;
+  final Function toggleFunction;
+  final Function deleteFunction;
+  final Function selectFunction;
   final bool selectMode;
+  bool isChecked;
 
   @override
   MyListTileState createState() => MyListTileState();
@@ -26,8 +34,6 @@ class MyListTileState extends State<MyListTile> {
   final _biggerFont = const TextStyle(fontSize: 18);
   late TextEditingController _controller;
 
-  bool isChecked = false;
-
   @override
   void initState() {
     super.initState();
@@ -36,18 +42,18 @@ class MyListTileState extends State<MyListTile> {
 
   @override
   Widget build(BuildContext context) {
-    debugPrint("Recreating cards");
+    print("${widget.isChecked} / ${widget.file}");
 
     return widget.selectMode
         ? CheckboxListTile(
-                title: Text(basename(widget.file.path)),
-                checkColor: Colors.white,
-                value: isChecked,
-                onChanged: (bool? value) {
-                  setState(() {
-                    isChecked = widget.selectMode && value!;
-                  });
-                })
+            title: Text(basename(widget.file.path)),
+            checkColor: Colors.white,
+            value: widget.isChecked,
+            onChanged: (bool? value) {
+              setState(() {
+                widget.toggleFunction(widget.file, widget.isChecked);
+              });
+            })
         : ListTile(
             title: Text(
               basename(widget.file.path),
@@ -55,7 +61,10 @@ class MyListTileState extends State<MyListTile> {
             ),
             onTap: () =>
                 widget.storage.openNote(context, basename(widget.file.path)),
-            onLongPress: () => widget.function,
+            onLongPress: () {
+              widget.toggleFunction(widget.file, true);
+              widget.selectFunction();
+            },
             // onTap: _handleNote,
             subtitle: _subtitle(widget.file),
             trailing: btnListTileMore(context, widget.file),
@@ -108,8 +117,7 @@ class MyListTileState extends State<MyListTile> {
                     // Return to previous screen
                     Navigator.pop(context);
                     _controller.text = "";
-                    setState(() {});
-                    widget.function();
+                    widget.updateFunction();
 
                     // Remove the box
                   },
@@ -119,8 +127,7 @@ class MyListTileState extends State<MyListTile> {
                     Navigator.pop(context);
                     widget.storage.renameNote(
                         basename(widget.file.path), _controller.text);
-                    setState(() {});
-                    widget.function();
+                    widget.deleteFunction(widget.file);
                   },
                   child: Text('Yes')),
             ],
@@ -145,16 +152,15 @@ class MyListTileState extends State<MyListTile> {
                     Navigator.pop(context);
                     _controller.text = "";
                     setState(() {});
-                    widget.function();
+                    widget.updateFunction();
                   },
                   child: Text('Cancel')),
               TextButton(
                   onPressed: () {
-                    deleteFile();
                     Navigator.pop(context);
                     //Return to previous screen
                     setState(() {});
-                    widget.function();
+                    widget.deleteFunction(widget.file);
                   },
                   child: Text('Ok')),
             ],
@@ -185,12 +191,4 @@ class MyListTileState extends State<MyListTile> {
     }
     return Colors.red;
   }
-
-  void deleteFileFromSelect() {
-    if (isChecked) deleteFile();
-  }
-
-  void deleteFile() {
-    widget.file.deleteSync();
-  }
 }

lib/screens/home/home.dart

@@ -15,10 +15,8 @@ class MyHomePage extends StatefulWidget {
 }
 
 class _MyHomePageState extends State<MyHomePage> {
-  final List<GlobalKey<MyListTileState>> keys = [];
-
   List<File> _allFilesNames = [];
-  late Iterable<MyListTile> tiles;
+  List<String> _selected = [];
 
   @override
   void initState() {
@@ -82,20 +80,21 @@ class _MyHomePageState extends State<MyHomePage> {
   bool selectMode = false;
 
   Widget _buildList(BuildContext context) {
-    keys.clear();
-
-    tiles = _allFilesNames.map(
-      (File f) {
-        GlobalKey<MyListTileState> key = GlobalKey();
-        keys.add(key);
+    print(_selected);
 
+    final tiles = _allFilesNames.map(
+      (
+        File f,
+      ) {
         return new MyListTile(
-          file: f,
-          selectMode: selectMode,
-          storage: widget.storage,
-          function: updateChildren,
-          key: key,
-        );
+            file: f,
+            selectMode: selectMode,
+            storage: widget.storage,
+            selectFunction: enterSelectMode,
+            updateFunction: updateChildren,
+            toggleFunction: toggleFile,
+            deleteFunction: _deleteFile,
+            isChecked: _selected.contains(f.path));
       },
     );
     final divided = tiles.isNotEmpty
@@ -115,12 +114,32 @@ class _MyHomePageState extends State<MyHomePage> {
 
   void exitSelectMode() {
     setState(() {
+      _selected.clear();
       selectMode = false;
     });
   }
 
   void updateChildren() {
-    enterSelectMode();
+    setState(() {});
+  }
+
+  void toggleFile(File f, bool b) {
+      if (_selected.contains(f.path))
+        _selected.remove(f.path);
+      else
+        _selected.add(f.path);
+    setState(() {
+    });
+  }
+
+  void _deleteFile(File f) {
+    setState(() {
+      _selected.clear();
+      try {
+        f.deleteSync();
+      } catch (e) {}
+    });
+    exitSelectMode();
   }
 
   /* DROP DOWN MENUS*/
@@ -130,19 +149,47 @@ class _MyHomePageState extends State<MyHomePage> {
       onChanged: (String? newValue) {
         switch (newValue) {
           case "Delete":
-            keys.forEach((element) {
-              element.currentState?.deleteFileFromSelect();
+            _selected.forEach((element) {
+              File(element).deleteSync();
             });
+            _selected.clear();
+
             exitSelectMode();
             break;
           case "Cancel":
             exitSelectMode();
+            break;
+          case "Select All":
+            _selected.clear();
+            _allFilesNames.forEach((element) {
+              _selected.add(element.path);
+            });
+            break;
+          case "Deselect All":
+            _selected.clear();
+            break;
+          case "Toggle Selected":
+            List<String> newSelected = [];
+
+            _allFilesNames.forEach((element) {
+              if (!(_selected.contains(element.path))) newSelected.add(element.path);
+            });
+            print("new $newSelected");
+            _selected = newSelected;
+
+            // keys.forEach((element) {element.currentState?.isChecked = !(element.currentState?.isChecked) ;});
+            break;
         }
         setState(() {});
       },
       underline: Container(color: Colors.transparent),
-      items: <String>['Delete', 'Cancel']
-          .map<DropdownMenuItem<String>>((String value) {
+      items: <String>[
+        "Delete",
+        "Select All",
+        "Deselect All",
+        "Toggle Selected",
+        "Cancel",
+      ].map<DropdownMenuItem<String>>((String value) {
         return DropdownMenuItem<String>(
           value: value,
           child: Text(value),
@@ -157,11 +204,15 @@ class _MyHomePageState extends State<MyHomePage> {
       onChanged: (String? newValue) {
         switch (newValue) {
           case "Select":
-            if(tiles.isNotEmpty) enterSelectMode();
+            if (_allFilesNames.isNotEmpty) enterSelectMode();
             break;
           case "Settings":
             Navigator.pushReplacement(
-                context, MaterialPageRoute(builder: (context) => Settings(storage: widget.storage,)));
+                context,
+                MaterialPageRoute(
+                    builder: (context) => Settings(
+                          storage: widget.storage,
+                        )));
         }
         setState(() {});
       },