TF-80 Move multiple email to mailbox from thread view

core/lib/core.dart

@@ -36,6 +36,8 @@ export 'presentation/views/context_menu/context_menu_builder.dart';
 export 'presentation/views/context_menu/context_menu_header_builder.dart';
 export 'presentation/views/context_menu/simple_context_menu_action_builder.dart';
 export 'presentation/views/dialog/loading_dialog_builder.dart';
+export 'presentation/views/dialog/downloading_file_dialog_builder.dart';
+export 'presentation/views/background/background_widget_builder.dart';
 
 // Resources
 export 'presentation/resources/assets_paths.dart';

core/lib/presentation/resources/image_paths.dart

@@ -41,6 +41,7 @@ class ImagePaths {
   String get icDownload => _getImagePath('ic_download.svg');
   String get icMore => _getImagePath('ic_more.svg');
   String get icPhotoLibrary => _getImagePath('ic_photo_library.svg');
+  String get icEmptyImageDefault => _getImagePath('empty_image_default.svg');
 
   String _getImagePath(String imageName) {
     return AssetsPaths.images + imageName;

core/lib/presentation/views/background/background_widget_builder.dart

@@ -0,0 +1,56 @@
+
+import 'package:core/core.dart';
+import 'package:flutter/widgets.dart';
+import 'package:flutter_svg/flutter_svg.dart';
+
+class BackgroundWidgetBuilder {
+  Key? _key;
+  SvgPicture? _image;
+  String? _text;
+
+  final BuildContext _context;
+
+  BackgroundWidgetBuilder(this._context);
+
+  void key(Key key) {
+    _key = key;
+  }
+
+  void image(SvgPicture image) {
+    _image = image;
+  }
+
+  void text(String text) {
+    _text = text;
+  }
+
+  Widget build() {
+    return Center(
+      key: _key ?? Key('BackgroundWidgetBuilder'),
+      child: CustomScrollView(
+        slivers: [
+          SliverFillRemaining(
+            child: Container(
+              child: Column(
+                mainAxisAlignment: MainAxisAlignment.center,
+                crossAxisAlignment: CrossAxisAlignment.center,
+                children: [
+                  _image ?? SizedBox.shrink(),
+                  Padding(
+                    padding: EdgeInsets.only(top: _image != null ? 16 : 0),
+                    child: Text(
+                      _text ?? '',
+                      style: TextStyle(color: AppColor.baseTextColor, fontSize: 16),
+                      textAlign: TextAlign.center,
+                    ),
+                  ),
+                ],
+              ),
+              height: MediaQuery.of(_context).size.height,
+            ),
+          )
+        ]
+      )
+    );
+  }
+}

core/lib/presentation/views/list/tree_view.dart

@@ -50,84 +50,43 @@ class _TreeViewData extends StatelessWidget {
   }
 }
 
-class TreeViewChild extends StatefulWidget {
-  final bool? startExpanded;
+class TreeViewChild {
+  final BuildContext context;
+  final bool? isExpanded;
   final Widget parent;
   final List<Widget> children;
   final VoidCallback? onTap;
 
-  TreeViewChild({
-    required this.parent,
-    required this.children,
-    this.startExpanded,
-    this.onTap,
-    Key? key,
-  }) : super(key: key);
+  TreeViewChild(
+    this.context,
+    {
+      required this.parent,
+      required this.children,
+      this.isExpanded,
+      this.onTap,
+      Key? key,
+    }
+  );
 
-  @override
-  TreeViewChildState createState() => TreeViewChildState();
-
-  TreeViewChild copyWith(
-    TreeViewChild source, {
-    bool? startExpanded,
-    Widget? parent,
-    List<Widget>? children,
-    VoidCallback? onTap,
-  }) {
-    return TreeViewChild(
-      parent: parent ?? source.parent,
-      children: children ?? source.children,
-      startExpanded: startExpanded ?? source.startExpanded,
-      onTap: onTap ?? source.onTap,
-    );
-  }
-}
-
-class TreeViewChildState extends State<TreeViewChild> {
-  bool? isExpanded;
-
-  @override
-  void initState() {
-    super.initState();
-    isExpanded = widget.startExpanded;
-  }
-
-  @override
-  void didChangeDependencies() {
-    isExpanded = widget.startExpanded ?? TreeView.of(context).startExpanded;
-    super.didChangeDependencies();
-  }
-
-  @override
-  Widget build(BuildContext context) {
+  Widget build() {
     return Column(
       mainAxisSize: MainAxisSize.min,
       children: <Widget>[
         GestureDetector(
-          child: widget.parent,
+          child: parent,
           onTap: () {
-            if (widget.onTap != null) {
-              widget.onTap!();
+            if (onTap != null) {
+              onTap!();
             }
-            toggleExpanded();
           },
         ),
         AnimatedContainer(
           duration: Duration(milliseconds: 400),
           child: isExpanded!
-            ? Column(
-                mainAxisSize: MainAxisSize.min,
-                children: widget.children,
-              )
+            ? Column(mainAxisSize: MainAxisSize.min, children: children)
             : Offstage(),
         ),
       ],
     );
   }
-
-  void toggleExpanded() {
-    setState(() {
-      this.isExpanded = !this.isExpanded!;
-    });
-  }
 }