Project which I cannot get text to update in

main.rs

use orbtk::prelude::*;

pub use self::main_state::*;
pub use self::main_view::*;

mod main_state;
mod main_view;

fn main() {
    Application::from_name("orbtk-sandbox")
        .window(move |ctx| {
            Window::new()
                .title("orbtk-sandbox")
                .position((100.0, 100.0))
                .size(300.0, 300.0)
                .resizeable(true)
                .child(MainView::new().title("Hello OrbTk").build(ctx))
                .build(ctx)
        })
        .run();
}

main_state.rs

use orbtk::prelude::*;

use crate::MainView;

pub enum Message {
	Encrypt(String),
	Decrypt(String),
	Clear,
}

#[derive(Default, AsAny)]
pub struct MainState {
	path: String
}

impl State for MainState {
	//fn update(&mut self, _: &mut Registry, _: &mut Context) {
	//}

	fn messages(
			&mut self,
			mut messages: MessageReader,
			_registry: &mut Registry,
			ctx: &mut Context,
	) {

		for message in messages.read::<Message>() {
			match message {
				Message::Encrypt(p) => {
					println!("Encrypt: {}", p);
					self.path = p.clone();
					MainView::target_file_set(&mut ctx.widget(), String::from("Updated string"));
					ctx.child("path_text")
						.get_mut::<String>("text").push('a'); //= String::from("updated");
						
				},
				Message::Decrypt(p) => {
					println!("Decrypt: {}", p);
				},
				Message::Clear => {
					println!("Clear");
				}
			}
		}
	}
}

main_view.rs

use orbtk::prelude::*;

use crate::{MainState, Message};

widget!(
	DropArea: DropHandler {
		text: String
	}
);

impl Template for DropArea {
    fn template(self, id: Entity, ctx: &mut BuildContext) -> Self {

		let test = Message::Encrypt(String::from("Hi"));

		self.name("Drop Area")
			.text("Hello")
			.child(Stack::new()
				.margin(10)
				.spacing(10)
				.child(ImageWidget::new()
					.image("assets/dnd.png")
					.h_align("center")
					.build(ctx)
				)
				.child(TextBlock::new()
					.text(id)
					.id("path_text")
					.h_align("center")
					.build(ctx)
				)
				.build(ctx)
			)

	}

}


widget!(
    MainView<MainState> {
	title: String,
	target_file: String
    }
);

impl Template for MainView {
    fn template(self, id: Entity, ctx: &mut BuildContext) -> Self {

		let drop_page = DropArea::new()
			.on_drop_file(move |states,path,_| {
				println!("event triggered");
				println!("{}", path);
				//DropArea::text_set(&mut sctx.get(), path);
				states.send_message(Message::Encrypt(path), id);
				true
			})
			.text(("target_file", id))
			.v_align("center")
			.h_align("center")
			.build(ctx);


		// This is only for testing purposes; my hunch was that having the
		// text nested within an object might be at fault. Sadly it's not,
		// but it makes testing convenient.
		let test_button = Button::new()
			.text(("target_file", id))
			.on_click(move |states, _| {
				states.send_message(Message::Encrypt(String::from("Hello")), id);
				true
				})
			.build(ctx);



		self.name("MainView")
			.target_file("No file")
			.child(test_button)
			.child(drop_page)
    }
}