TF-2172 Display DropZone view when drag active

(cherry picked from commit 13a88cc956190dd3ebb47033cd1f95e28b6694af)

lib/features/composer/presentation/composer_view_web.dart

@@ -6,6 +6,7 @@ import 'package:file_picker/file_picker.dart';
 import 'package:flutter/material.dart';
 import 'package:get/get.dart';
 import 'package:model/email/prefix_email_address.dart';
+import 'package:pointer_interceptor/pointer_interceptor.dart';
 import 'package:tmail_ui_user/features/base/widget/popup_item_widget.dart';
 import 'package:tmail_ui_user/features/composer/presentation/composer_controller.dart';
 import 'package:tmail_ui_user/features/composer/presentation/model/prefix_recipient_state.dart';
@@ -18,6 +19,7 @@ import 'package:tmail_ui_user/features/composer/presentation/widgets/insert_imag
 import 'package:tmail_ui_user/features/composer/presentation/widgets/web/desktop_app_bar_composer_widget.dart';
 import 'package:tmail_ui_user/features/composer/presentation/widgets/web/attachment_composer_widget.dart';
 import 'package:tmail_ui_user/features/composer/presentation/widgets/web/bottom_bar_composer_widget.dart';
+import 'package:tmail_ui_user/features/composer/presentation/widgets/web/drop_zone_widget.dart';
 import 'package:tmail_ui_user/features/composer/presentation/widgets/web/mobile_responsive_app_bar_composer_widget.dart';
 import 'package:tmail_ui_user/features/composer/presentation/widgets/recipient_composer_widget.dart';
 import 'package:tmail_ui_user/features/composer/presentation/widgets/subject_composer_widget.dart';
@@ -336,29 +338,42 @@ class ComposerView extends GetWidget<ComposerController> {
                           Expanded(
                             child: Padding(
                               padding: ComposerStyle.desktopEditorPadding,
-                              child: Obx(() => WebEditorView(
-                                editorController: controller.richTextWebController.editorController,
-                                arguments: controller.composerArguments.value,
-                                contentViewState: controller.emailContentsViewState.value,
-                                currentWebContent: controller.textEditorWeb,
-                                onInitial: controller.handleInitHtmlEditorWeb,
-                                onChangeContent: controller.onChangeTextEditorWeb,
-                                onFocus: controller.handleOnFocusHtmlEditorWeb,
-                                onUnFocus: controller.handleOnUnFocusHtmlEditorWeb,
-                                onMouseDown: controller.handleOnMouseDownHtmlEditorWeb,
-                                onEditorSettings: controller.richTextWebController.onEditorSettingsChange,
-                                onImageUploadSuccessAction: (fileUpload) => controller.handleImageUploadSuccess(context, fileUpload),
-                                onImageUploadFailureAction: (fileUpload, base64Str, uploadError) {
-                                  return controller.handleImageUploadFailure(
-                                    context: context,
-                                    uploadError: uploadError,
-                                    fileUpload: fileUpload,
-                                    base64Str: base64Str,
-                                  );
-                                },
-                                width: constraints.maxWidth,
-                                height: constraints.maxHeight,
-                              )),
+                              child: Obx(() {
+                                return Stack(
+                                  children: [
+                                    WebEditorView(
+                                      editorController: controller.richTextWebController.editorController,
+                                      arguments: controller.composerArguments.value,
+                                      contentViewState: controller.emailContentsViewState.value,
+                                      currentWebContent: controller.textEditorWeb,
+                                      onInitial: controller.handleInitHtmlEditorWeb,
+                                      onChangeContent: controller.onChangeTextEditorWeb,
+                                      onFocus: controller.handleOnFocusHtmlEditorWeb,
+                                      onUnFocus: controller.handleOnUnFocusHtmlEditorWeb,
+                                      onMouseDown: controller.handleOnMouseDownHtmlEditorWeb,
+                                      onEditorSettings: controller.richTextWebController.onEditorSettingsChange,
+                                      onImageUploadSuccessAction: (fileUpload) => controller.handleImageUploadSuccess(context, fileUpload),
+                                      onImageUploadFailureAction: (fileUpload, base64Str, uploadError) {
+                                        return controller.handleImageUploadFailure(
+                                          context: context,
+                                          uploadError: uploadError,
+                                          fileUpload: fileUpload,
+                                          base64Str: base64Str,
+                                        );
+                                      },
+                                      width: constraints.maxWidth,
+                                      height: constraints.maxHeight,
+                                    ),
+                                    if (controller.mailboxDashBoardController.isDraggableAppActive)
+                                      PointerInterceptor(
+                                        child: DropZoneWidget(
+                                          width: constraints.maxWidth,
+                                          height: constraints.maxHeight,
+                                        )
+                                      )
+                                  ],
+                                );
+                              }),
                             ),
                           ),
                           Obx(() {

lib/features/email/presentation/email_view.dart

@@ -278,7 +278,15 @@ class EmailView extends GetWidget<SingleEmailController> {
               if (attachments.isNotEmpty) {
                 return EmailAttachmentsWidget(
                   attachments: attachments,
-                  onDownloadAttachmentActionCallback: (context, attachment) {
+                  onDragStarted: () {
+                    log('EmailView::_buildEmailMessage:onDragStarted:');
+                    controller.mailboxDashBoardController.enableDraggableApp();
+                  },
+                  onDragEnd: (details) {
+                    log('EmailView::_buildEmailMessage:onDragEnd:');
+                    controller.mailboxDashBoardController.disableDraggableApp();
+                  },
+                  downloadAttachmentAction: (attachment) {
                     if (PlatformInfo.isWeb) {
                       controller.downloadAttachmentForWeb(context, attachment);
                     } else {

lib/features/mailbox_dashboard/presentation/controller/mailbox_dashboard_controller.dart

@@ -72,6 +72,7 @@ import 'package:tmail_ui_user/features/mailbox_dashboard/presentation/extensions
 import 'package:tmail_ui_user/features/mailbox_dashboard/presentation/model/composer_overlay_state.dart';
 import 'package:tmail_ui_user/features/mailbox_dashboard/presentation/model/dashboard_routes.dart';
 import 'package:tmail_ui_user/features/mailbox_dashboard/presentation/model/download/download_task_state.dart';
+import 'package:tmail_ui_user/features/mailbox_dashboard/presentation/model/draggable_app_state.dart';
 import 'package:tmail_ui_user/features/mailbox_dashboard/presentation/model/refresh_action_view_event.dart';
 import 'package:tmail_ui_user/features/mailbox_dashboard/presentation/model/search/email_receive_time_type.dart';
 import 'package:tmail_ui_user/features/mailbox_dashboard/presentation/model/search/quick_search_filter.dart';
@@ -194,6 +195,7 @@ class MailboxDashBoardController extends ReloadableController {
   final searchMailboxActivated = RxBool(false);
   final listSendingEmails = RxList<SendingEmail>();
   final refreshingMailboxState = Rx<Either<Failure, Success>>(Right(UIState.idle));
+  final draggableAppState = Rxn<DraggableAppState>();
 
   Session? sessionCurrent;
   Map<Role, MailboxId> mapDefaultMailboxIdByRole = {};
@@ -2104,6 +2106,16 @@ class MailboxDashBoardController extends ReloadableController {
 
     openMailboxAction(inboxPresentation);
   }
+
+  bool get isDraggableAppActive => draggableAppState.value == DraggableAppState.active;
+
+  void enableDraggableApp() {
+    draggableAppState.value = DraggableAppState.active;
+  }
+
+  void disableDraggableApp() {
+    draggableAppState.value = DraggableAppState.inActive;
+  }
   
   @override
   void onClose() {

lib/features/mailbox_dashboard/presentation/model/draggable_app_state.dart

@@ -0,0 +1,5 @@
+
+enum DraggableAppState {
+  active,
+  inActive
+}