Set up callbacks to make the save button sensitive to the file selection

fitnesstrax/app/src/main.rs

@@ -25,6 +25,8 @@ use gtk::{subclass::prelude::*, STYLE_PROVIDER_PRIORITY_USER};
 use std::{
     cell::RefCell,
     env,
+    path::PathBuf,
+    rc::Rc,
     sync::{Arc, RwLock},
 };
 use ui::FileChooserRow;
@@ -72,7 +74,10 @@ glib::wrapper! {
 }
 
 impl WelcomeView {
-    pub fn new() -> Self {
+    pub fn new<F>(on_save: F) -> Self
+    where
+        F: Fn(PathBuf) + 'static,
+    {
         let s: Self = Object::builder().build();
         s.set_orientation(gtk::Orientation::Vertical);
         s.set_css_classes(&["modal"]);
@@ -83,7 +88,6 @@ impl WelcomeView {
             .label("Welcome to FitnessTrax")
             .css_classes(["modal-title"])
             .build();
-        s.append(&title);
 
         let content = gtk::Box::builder()
             .css_classes(["model-content"])
@@ -91,17 +95,34 @@ impl WelcomeView {
             .vexpand(true)
             .build();
 
-        content.append(&gtk::Label::new(Some("Welcome to FitnessTrax. The application has not yet been configured, so I will walk you through that. Let's start out by selecting your database.")));
+        let save_button = gtk::Button::builder()
+            .label("Save Settings")
+            .sensitive(false)
+            .build();
 
         // The database selection row should be a box that shows a default database path, along with a
         // button that triggers a file chooser dialog. Once the dialog returns, the box should be
         // updated to reflect the chosen path.
-        let db_row = FileChooserRow::new();
+        let db_row = FileChooserRow::new({
+            let save_button = save_button.clone();
+            move |_| save_button.set_sensitive(true)
+        });
 
+        content.append(&gtk::Label::new(Some("Welcome to FitnessTrax. The application has not yet been configured, so I will walk you through that. Let's start out by selecting your database.")));
         content.append(&db_row);
 
+        let on_save = Box::new(on_save);
+        save_button.connect_clicked({
+            move |_| {
+                if let Some(path) = db_row.path() {
+                    on_save(path)
+                }
+            }
+        });
+
+        s.append(&title);
         s.append(&content);
-        s.append(&gtk::Button::builder().label("Save Settings").build());
+        s.append(&save_button);
 
         s
     }
@@ -167,7 +188,7 @@ impl AppWindow {
             .build();
 
         let current_view = if app.database.read().unwrap().is_none() {
-            WelcomeView::new().upcast()
+            WelcomeView::new(&|_| {}).upcast()
         } else {
             HistoricalView::new().upcast()
         };

fitnesstrax/app/src/ui/mod.rs

@@ -16,7 +16,11 @@ You should have received a copy of the GNU General Public License along with Fit
 
 use glib::Object;
 use gtk::{prelude::*, subclass::prelude::*};
-use std::{cell::RefCell, path::PathBuf};
+use std::{
+    cell::RefCell,
+    path::{Path, PathBuf},
+    rc::Rc,
+};
 
 pub struct FileChooserRowPrivate {
     path: RefCell<Option<PathBuf>>,
@@ -46,7 +50,10 @@ glib::wrapper! {
 }
 
 impl FileChooserRow {
-    pub fn new() -> Self {
+    pub fn new<F>(on_selected: F) -> Self
+    where
+        F: Fn(PathBuf) + 'static,
+    {
         let s: Self = Object::builder().build();
 
         s.set_orientation(gtk::Orientation::Horizontal);
@@ -57,12 +64,14 @@ impl FileChooserRow {
         s.imp().label.set_text("No database selected");
 
         let db_file_chooser_button = gtk::Button::builder().label("Select Database").build();
+        let on_selected = Rc::new(Box::new(on_selected));
         db_file_chooser_button.connect_clicked({
             let s = s.clone();
             move |_| {
                 let no_window: Option<&gtk::Window> = None;
                 let not_cancellable: Option<&gio::Cancellable> = None;
                 let s = s.clone();
+                let on_selected = on_selected.clone();
                 gtk::FileDialog::builder().build().open(
                     no_window,
                     not_cancellable,
@@ -70,6 +79,7 @@ impl FileChooserRow {
                         Ok(file_id) => match file_id.path() {
                             Some(path) => {
                                 s.imp().label.set_text(path.to_str().unwrap());
+                                on_selected(path.clone());
                                 *s.imp().path.borrow_mut() = Some(path);
                             }
                             None => {
@@ -88,4 +98,8 @@ impl FileChooserRow {
 
         s
     }
+
+    pub fn path(&self) -> Option<PathBuf> {
+        self.imp().path.borrow().clone()
+    }
 }