Add a file picker for encode/decode buttons

src/decode.rs

@@ -0,0 +1,5 @@
+use std::path::PathBuf;
+
+pub async fn decode(path: PathBuf) {
+    println!("{}", path.display());
+}

src/encode.rs

@@ -0,0 +1,5 @@
+use std::path::PathBuf;
+
+pub async fn encode(path: PathBuf) {
+    println!("{}", path.display());
+}

src/main.rs

@@ -1,6 +1,14 @@
+use gtk4::glib::spawn_future_local;
 use gtk4::{Application, ApplicationWindow, Box, Button, Orientation};
 use gtk4::{Settings, prelude::*};
 
+mod decode;
+mod encode;
+mod util;
+use decode::decode;
+use encode::encode;
+use util::get_user_selected_file;
+
 fn main() {
     let app = Application::builder()
         .application_id("xyz.lncvrt.videostore")
@@ -30,13 +38,27 @@ fn main() {
         encodebtn.set_size_request(200, 50);
         decodebtn.set_size_request(200, 50);
 
-        // encodebtn.connect_clicked(|_| {
-        //     println!("encode clicked");
-        // });
+        encodebtn.connect_clicked({
+            let window = window.clone();
+            move |_| {
+                get_user_selected_file(&window, |file_path| {
+                    if let Some(path) = file_path {
+                        spawn_future_local(encode(path));
+                    }
+                });
+            }
+        });
 
-        // decodebtn.connect_clicked(|_| {
-        //     println!("decode clicked");
-        // });
+        decodebtn.connect_clicked({
+            let window = window.clone();
+            move |_| {
+                get_user_selected_file(&window, |file_path| {
+                    if let Some(path) = file_path {
+                        spawn_future_local(decode(path));
+                    }
+                });
+            }
+        });
 
         vbox.append(&encodebtn);
         vbox.append(&decodebtn);

src/util.rs

@@ -0,0 +1,39 @@
+use gtk4::prelude::*;
+use gtk4::{ApplicationWindow, FileChooserDialog, ResponseType};
+use std::path::PathBuf;
+
+pub fn get_user_selected_file<F>(parent: &ApplicationWindow, callback: F)
+where
+    F: FnOnce(Option<PathBuf>) + 'static,
+{
+    let callback = std::cell::RefCell::new(Some(callback));
+
+    let dialog = FileChooserDialog::new(
+        Some("Choose a File"),
+        Some(parent),
+        gtk4::FileChooserAction::Open,
+        &[
+            ("Cancel", ResponseType::Cancel),
+            ("Open", ResponseType::Accept),
+        ],
+    );
+
+    dialog.connect_response(move |dialog, response| {
+        let result = if response == ResponseType::Accept {
+            dialog
+                .file()
+                .and_then(|file| file.path())
+                .filter(|path| path.is_file())
+        } else {
+            None
+        };
+
+        if let Some(cb) = callback.borrow_mut().take() {
+            cb(result);
+        }
+
+        dialog.close();
+    });
+
+    dialog.show();
+}