diff --git a/packages/core/src/asset_manager/config/config.ts b/packages/core/src/asset_manager/config/config.ts
index 34ca1c593b..adb15c7c54 100644
--- a/packages/core/src/asset_manager/config/config.ts
+++ b/packages/core/src/asset_manager/config/config.ts
@@ -1,3 +1,5 @@
+import { UploadFileFn } from '../types';
+
 export interface AssetManagerConfig {
   /**
    * Default assets.
@@ -83,7 +85,7 @@ export interface AssetManagerConfig {
    *  // ...send somewhere
    * }
    */
-  uploadFile?: (ev: DragEvent) => void;
+  uploadFile?: UploadFileFn;
   /**
    * In the absence of 'uploadFile' or 'upload' assets will be embedded as Base64.
    * @default true
diff --git a/packages/core/src/asset_manager/index.ts b/packages/core/src/asset_manager/index.ts
index cfee7a7b47..5dd3381215 100644
--- a/packages/core/src/asset_manager/index.ts
+++ b/packages/core/src/asset_manager/index.ts
@@ -40,13 +40,10 @@ import { ProjectData } from '../storage_manager';
 import defConfig, { AssetManagerConfig } from './config/config';
 import Asset from './model/Asset';
 import Assets from './model/Assets';
-import AssetsEvents, { AssetOpenOptions } from './types';
+import AssetsEvents, { AssetAddInput, AssetOpenOptions, AssetProps } from './types';
 import AssetsView from './view/AssetsView';
 import FileUploaderView from './view/FileUploader';
 
-// TODO
-type AssetProps = Record<string, any>;
-
 const assetCmd = 'open-assets';
 
 export default class AssetManager extends ItemManagerModule<AssetManagerConfig, Assets> {
@@ -153,7 +150,7 @@ export default class AssetManager extends ItemManagerModule<AssetManagerConfig,
    * });
    * assetManager.add([{ src: 'img2.jpg' }, { src: 'img2.png' }]);
    */
-  add(asset: string | AssetProps | (string | AssetProps)[], opts: AddOptions = {}) {
+  add(asset: AssetAddInput | AssetAddInput[], opts: AddOptions = {}) {
     // Put the model at the beginning
     if (typeof opts.at == 'undefined') {
       opts.at = 0;
diff --git a/packages/core/src/asset_manager/types.ts b/packages/core/src/asset_manager/types.ts
index 0ab95e5787..d8cedd0264 100644
--- a/packages/core/src/asset_manager/types.ts
+++ b/packages/core/src/asset_manager/types.ts
@@ -1,7 +1,10 @@
+import ComponentView from '../dom_components/view/ComponentView';
 import Asset from './model/Asset';
 
 export type AssetEvent = `${AssetsEvents}`;
 
+export type AssetAddInput = string | AssetProps | Asset;
+
 export interface AssetOpenOptions {
   select?: (asset: Asset, complete: boolean) => void;
   types?: string[];
@@ -9,6 +12,20 @@ export interface AssetOpenOptions {
   target?: any;
 }
 
+export interface AssetProps {
+  src: string;
+  [key: string]: unknown;
+}
+
+export interface UploadFileOptions {
+  componentView?: ComponentView;
+  file?: File;
+}
+
+export type UploadFileClb = (result: { data: (AssetProps | string)[] }) => void;
+
+export type UploadFileFn = (ev: DragEvent, clb?: UploadFileClb, opts?: UploadFileOptions) => Promise<void> | undefined;
+
 /**{START_EVENTS}*/
 export enum AssetsEvents {
   /**
diff --git a/packages/core/src/asset_manager/view/FileUploader.ts b/packages/core/src/asset_manager/view/FileUploader.ts
index e8cef8c581..208298333f 100644
--- a/packages/core/src/asset_manager/view/FileUploader.ts
+++ b/packages/core/src/asset_manager/view/FileUploader.ts
@@ -4,6 +4,7 @@ import EditorModel from '../../editor/model/Editor';
 import fetch from '../../utils/fetch';
 import html from '../../utils/html';
 import { AssetManagerConfig } from '../config/config';
+import { UploadFileClb, UploadFileOptions } from '../types';
 
 type FileUploaderTemplateProps = {
   pfx: string;
@@ -53,7 +54,7 @@ export default class FileUploaderView extends View {
   constructor(opts: any = {}) {
     super(opts);
     this.options = opts;
-    const c = opts.config || {};
+    const c = (opts.config || {}) as AssetManagerConfig & { pStylePrefix?: string; disableUpload?: boolean };
     this.module = opts.module;
     this.config = c;
     // @ts-ignore
@@ -113,7 +114,7 @@ export default class FileUploaderView extends View {
    * @param  {string} text Response text
    * @private
    */
-  onUploadResponse(text: string, clb?: (json: any) => void) {
+  onUploadResponse(text: string, clb?: UploadFileClb) {
     const { module, config, target } = this;
     let json;
     try {
@@ -138,9 +139,9 @@ export default class FileUploaderView extends View {
    * @return {Promise}
    * @private
    * */
-  uploadFile(e: DragEvent, clb?: () => void) {
-    // @ts-ignore
-    const files = e.dataTransfer ? e.dataTransfer.files : e.target.files;
+  uploadFile(e: DragEvent, clb?: UploadFileClb, opts?: UploadFileOptions) {
+    opts; // Options are not used here but can be used by the custom uploadFile function
+    const files = e.dataTransfer ? e.dataTransfer.files : ((e.target as any)?.files as FileList);
     const { config } = this;
     const { beforeUpload } = config;
 
@@ -293,7 +294,7 @@ export default class FileUploaderView extends View {
     return this;
   }
 
-  static embedAsBase64(e: DragEvent, clb?: () => void) {
+  static embedAsBase64(e: DragEvent, clb?: UploadFileClb) {
     // List files dropped
     // @ts-ignore
     const files = e.dataTransfer ? e.dataTransfer.files : e.target.files;
diff --git a/packages/core/src/dom_components/view/ComponentImageView.ts b/packages/core/src/dom_components/view/ComponentImageView.ts
index 19d9de56b6..ada10c3c7f 100644
--- a/packages/core/src/dom_components/view/ComponentImageView.ts
+++ b/packages/core/src/dom_components/view/ComponentImageView.ts
@@ -40,14 +40,17 @@ export default class ComponentImageView<TComp extends ComponentImage = Component
       const fu = em.Assets.FileUploader();
       fu?.uploadFile(
         {
-          // @ts-ignore
           dataTransfer: { files: [file] },
-        },
-        (res: any) => {
+        } as unknown as DragEvent,
+        (res) => {
           const obj = res && res.data && res.data[0];
           const src = obj && (isString(obj) ? obj : obj.src);
           src && model.set({ src });
         },
+        {
+          componentView: this,
+          file,
+        },
       );
       model.set('file', '');
     }
diff --git a/packages/core/src/utils/Droppable.ts b/packages/core/src/utils/Droppable.ts
index 3685031652..5d5a8aac79 100644
--- a/packages/core/src/utils/Droppable.ts
+++ b/packages/core/src/utils/Droppable.ts
@@ -1,12 +1,12 @@
 import { bindAll, indexOf } from 'underscore';
 import CanvasModule from '../canvas';
 import { ObjectStrings } from '../common';
+import Component from '../dom_components/model/Component';
 import EditorModel from '../editor/model/Editor';
 import { getDocumentScroll, off, on } from './dom';
-import { DragDirection, DragSource } from './sorter/types';
 import CanvasNewComponentNode from './sorter/CanvasNewComponentNode';
 import ComponentSorter from './sorter/ComponentSorter';
-import Component from '../dom_components/model/Component';
+import { DragDirection, DraggableContent, DragSource } from './sorter/types';
 
 // TODO move in sorter
 type SorterOptions = {
@@ -233,7 +233,7 @@ export default class Droppable {
   handleDrop(ev: Event | DragEvent) {
     ev.preventDefault();
     const dt = (ev as DragEvent).dataTransfer;
-    const content = this.getContentByData(dt).content;
+    const content = this.getContentByData(dt!).content || '';
     if (this.draggedNode) {
       this.draggedNode.content = content;
     }
@@ -241,12 +241,12 @@ export default class Droppable {
     this.endDrop(!content, ev);
   }
 
-  getContentByData(dt: any) {
+  getContentByData(dt?: DataTransfer) {
     const em = this.em;
-    const types = dt && dt.types;
-    const files = (dt && dt.files) || [];
+    const types = dt?.types || [];
+    const files = dt?.files || [];
     const dragSource: DragSource<Component> = em.get('dragSource');
-    let content = dt && dt.getData('text');
+    let content: DraggableContent['content'] = dt?.getData('text') || '';
 
     if (files.length) {
       content = [];
@@ -280,9 +280,13 @@ export default class Droppable {
       content = `<div>${content}</div>`;
     }
 
-    const result = { content };
+    const result = {
+      content,
+      setContent(content: DraggableContent['content']) {
+        result.content = content;
+      },
+    };
     em.trigger('canvas:dragdata', dt, result);
-
     return result;
   }
 }