Remove channel-based communications #135
|
@ -14,80 +14,113 @@ General Public License for more details.
|
|||
You should have received a copy of the GNU General Public License along with FitnessTrax. If not, see <https://www.gnu.org/licenses/>.
|
||||
*/
|
||||
|
||||
use emseries::Series;
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use chrono::NaiveDate;
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||||
use emseries::{time_range, Record, RecordId, Series, Timestamp};
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use ft_core::TraxRecord;
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use std::{
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path::{Path, PathBuf},
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sync::{Arc, RwLock},
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};
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use tokio::runtime::Runtime;
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/// Invocations are how parts of the application, primarily the UI, will send requests to the core.
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#[derive(Debug)]
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pub enum AppInvocation {
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/// Tell the core to try to open a database.
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OpenDatabase(PathBuf),
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/// Request a set of records from the core.
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// Note: this will require a time range, but doesn't yet.
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RequestRecords,
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}
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/// Responses are messages that the core sends to the UI. Though they are called responses, the
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/// could actually be pre-emptively sent, such as notifications. The UI will need to be able to
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/// process those any time they arrive.
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///
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/// A typical use would be for the UI to send an [AppInvocation::RequestRecords] request and
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/// receive [AppResponse::Records].
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#[derive(Debug)]
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pub enum AppResponse {
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/// No database is available. The UI should typically display a placeholder, such as the
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/// welcome view.
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pub enum AppError {
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NoDatabase,
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/// The database is open and here is a set of records. Typically, the set of records will be
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/// all of the records within a time frame, but this can actually be any set of records.
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Records,
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/// The database has been changed. This message is useful for telling the UI that a significant
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/// change has happened. Further, the UI needs to save PathBuf to settings, because the
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/// gio::Settings system can't be run in the fully async background.
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DatabaseChanged(PathBuf),
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FailedToOpenDatabase,
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Unhandled,
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}
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/// The real, headless application. This is where all of the logic will reside.
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#[derive(Clone)]
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pub struct App {
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runtime: Arc<Runtime>,
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database: Arc<RwLock<Option<Series<TraxRecord>>>>,
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}
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impl App {
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pub fn new(db_path: Option<PathBuf>) -> Self {
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let database = db_path.map(|path| Series::open(path).unwrap());
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let runtime = Arc::new(
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tokio::runtime::Builder::new_multi_thread()
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.enable_all()
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.build()
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.unwrap(),
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);
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||||
|
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let s = Self {
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runtime,
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database: Arc::new(RwLock::new(database)),
|
||||
};
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s
|
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}
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pub async fn process_invocation(&self, invocation: AppInvocation) -> AppResponse {
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match invocation {
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AppInvocation::OpenDatabase(db_path) => {
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self.open_db(&db_path);
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AppResponse::DatabaseChanged(db_path)
|
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}
|
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AppInvocation::RequestRecords => {
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if self.database.read().unwrap().is_none() {
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AppResponse::NoDatabase
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pub async fn records(
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&self,
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start: NaiveDate,
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end: NaiveDate,
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) -> Result<Vec<Record<TraxRecord>>, AppError> {
|
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let db = self.database.clone();
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self.runtime
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.spawn_blocking(move || {
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if let Some(ref db) = *db.read().unwrap() {
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let records = db
|
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.search(time_range(
|
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Timestamp::Date(start),
|
||||
true,
|
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Timestamp::Date(end),
|
||||
true,
|
||||
))
|
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.map(|record| record.clone())
|
||||
.collect::<Vec<Record<TraxRecord>>>();
|
||||
Ok(records)
|
||||
} else {
|
||||
AppResponse::Records
|
||||
Err(AppError::NoDatabase)
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}
|
||||
}
|
||||
}
|
||||
})
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||||
.await
|
||||
.unwrap()
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||||
}
|
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|
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fn open_db(&self, path: &Path) {
|
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let db = Series::open(path).unwrap();
|
||||
*self.database.write().unwrap() = Some(db);
|
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pub async fn put_record(&self, record: TraxRecord) -> Result<RecordId, AppError> {
|
||||
let db = self.database.clone();
|
||||
self.runtime
|
||||
.spawn_blocking(move || {
|
||||
if let Some(ref mut db) = *db.write().unwrap() {
|
||||
let id = db.put(record).unwrap();
|
||||
Ok(id)
|
||||
} else {
|
||||
Err(AppError::NoDatabase)
|
||||
}
|
||||
})
|
||||
.await
|
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.unwrap()
|
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.map_err(|_| AppError::Unhandled)
|
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}
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|
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pub async fn save_record(&self, record: Record<TraxRecord>) -> Result<(), AppError> {
|
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let db = self.database.clone();
|
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self.runtime
|
||||
.spawn_blocking(move || {
|
||||
if let Some(ref mut db) = *db.write().unwrap() {
|
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db.update(record).map_err(|_| AppError::Unhandled)
|
||||
} else {
|
||||
Err(AppError::NoDatabase)
|
||||
}
|
||||
})
|
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.await
|
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.unwrap()
|
||||
.map_err(|_| AppError::Unhandled)
|
||||
}
|
||||
|
||||
pub async fn open_db(&self, path: PathBuf) -> Result<(), AppError> {
|
||||
let db_ref = self.database.clone();
|
||||
self.runtime
|
||||
.spawn_blocking(move || {
|
||||
let db = Series::open(path).map_err(|_| AppError::FailedToOpenDatabase)?;
|
||||
*db_ref.write().unwrap() = Some(db);
|
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Ok(())
|
||||
})
|
||||
.await
|
||||
.unwrap()
|
||||
}
|
||||
}
|
||||
|
|
|
@ -15,25 +15,21 @@ You should have received a copy of the GNU General Public License along with Fit
|
|||
*/
|
||||
|
||||
use crate::{
|
||||
app::{AppInvocation, AppResponse},
|
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views::{HistoricalView, PlaceholderView, View, ViewName, WelcomeView},
|
||||
app::App,
|
||||
views::{HistoricalView, PlaceholderView, View, WelcomeView},
|
||||
};
|
||||
use adw::prelude::*;
|
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use async_channel::Sender;
|
||||
use chrono::{NaiveDate, TimeZone};
|
||||
use chrono_tz::America::Anchorage;
|
||||
use dimensioned::si::{KG, M, S};
|
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use ft_core::{Steps, TimeDistance, TraxRecord, Weight};
|
||||
use chrono::{Duration, Local};
|
||||
use gio::resources_lookup_data;
|
||||
use gtk::STYLE_PROVIDER_PRIORITY_USER;
|
||||
use std::path::PathBuf;
|
||||
use std::{cell::RefCell, rc::Rc};
|
||||
use std::{cell::RefCell, path::PathBuf, rc::Rc};
|
||||
|
||||
/// The application window, or the main window, is the main user interface for the app. Almost
|
||||
/// everything occurs here.
|
||||
#[derive(Clone)]
|
||||
pub struct AppWindow {
|
||||
app_tx: Sender<AppInvocation>,
|
||||
app: App,
|
||||
app_id: String,
|
||||
layout: gtk::Box,
|
||||
current_view: Rc<RefCell<View>>,
|
||||
settings: gio::Settings,
|
||||
|
@ -51,7 +47,7 @@ impl AppWindow {
|
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app_id: &str,
|
||||
resource_path: &str,
|
||||
adw_app: &adw::Application,
|
||||
app_tx: Sender<AppInvocation>,
|
||||
ft_app: App,
|
||||
) -> AppWindow {
|
||||
let window = adw::ApplicationWindow::builder()
|
||||
.application(adw_app)
|
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|
@ -103,35 +99,40 @@ impl AppWindow {
|
|||
window.present();
|
||||
|
||||
let s = Self {
|
||||
app_tx,
|
||||
app: ft_app,
|
||||
app_id: app_id.to_owned(),
|
||||
layout,
|
||||
current_view: Rc::new(RefCell::new(initial_view)),
|
||||
settings: gio::Settings::new(app_id),
|
||||
navigation,
|
||||
};
|
||||
|
||||
glib::spawn_future_local({
|
||||
let s = s.clone();
|
||||
async move {
|
||||
let end = Local::now().date_naive();
|
||||
let start = end - Duration::days(7);
|
||||
match s.app.records(start, end).await {
|
||||
Ok(_) => s.show_historical_view(),
|
||||
Err(_) => s.show_welcome_view(),
|
||||
}
|
||||
}
|
||||
});
|
||||
|
||||
s
|
||||
}
|
||||
|
||||
pub fn change_view(&self, view: ViewName) {
|
||||
self.swap_main(self.construct_view(view));
|
||||
fn show_welcome_view(&self) {
|
||||
let view = View::Welcome(WelcomeView::new({
|
||||
let s = self.clone();
|
||||
move |path| s.on_apply_config(path)
|
||||
}));
|
||||
self.swap_main(view);
|
||||
}
|
||||
|
||||
pub fn process_response(&self, response: AppResponse) {
|
||||
match response {
|
||||
AppResponse::DatabaseChanged(db_path) => {
|
||||
self.settings
|
||||
.set_string("series-path", db_path.to_str().unwrap())
|
||||
.unwrap();
|
||||
self.change_view(ViewName::Historical);
|
||||
}
|
||||
AppResponse::NoDatabase => {
|
||||
self.change_view(ViewName::Welcome);
|
||||
}
|
||||
AppResponse::Records => {
|
||||
self.change_view(ViewName::Historical);
|
||||
}
|
||||
}
|
||||
fn show_historical_view(&self) {
|
||||
let view = View::Historical(HistoricalView::new(vec![]));
|
||||
self.swap_main(view);
|
||||
}
|
||||
|
||||
// Switch views.
|
||||
|
@ -146,20 +147,15 @@ impl AppWindow {
|
|||
self.layout.append(¤t_widget.widget());
|
||||
}
|
||||
|
||||
fn construct_view(&self, view: ViewName) -> View {
|
||||
match view {
|
||||
ViewName::Welcome => View::Welcome(
|
||||
WelcomeView::new({
|
||||
let s = self.clone();
|
||||
Box::new(move |path: PathBuf| {
|
||||
s.app_tx
|
||||
.send_blocking(AppInvocation::OpenDatabase(path))
|
||||
.unwrap();
|
||||
})
|
||||
})
|
||||
.upcast(),
|
||||
),
|
||||
ViewName::Historical => View::Historical(HistoricalView::new(vec![]).upcast()),
|
||||
}
|
||||
fn on_apply_config(&self, path: PathBuf) {
|
||||
glib::spawn_future_local({
|
||||
let s = self.clone();
|
||||
async move {
|
||||
if s.app.open_db(path.clone()).await.is_ok() {
|
||||
let _ = s.settings.set("series-path", path.to_str().unwrap());
|
||||
s.show_historical_view();
|
||||
}
|
||||
}
|
||||
});
|
||||
}
|
||||
}
|
||||
|
|
|
@ -43,7 +43,7 @@ fn main() {
|
|||
};
|
||||
|
||||
let settings = gio::Settings::new(app_id);
|
||||
let app = app::App::new({
|
||||
let ft_app = app::App::new({
|
||||
let path = settings.string("series-path");
|
||||
if path.is_empty() {
|
||||
None
|
||||
|
@ -57,54 +57,8 @@ fn main() {
|
|||
.resource_base_path(RESOURCE_BASE_PATH)
|
||||
.build();
|
||||
|
||||
let runtime = tokio::runtime::Builder::new_multi_thread()
|
||||
.enable_all()
|
||||
.build()
|
||||
.unwrap();
|
||||
|
||||
adw_app.connect_activate(move |adw_app| {
|
||||
// These channels are used to send messages to the UI. Anything that needs to send a
|
||||
// message to the UI will send it via `ui_tx`. We will have one single process that owns
|
||||
// `ui_rx`. That process will read messages coming in and send them to [AppWindow] for proper
|
||||
// processing.
|
||||
//
|
||||
// The core app will usually only send messages in response to a request, but this channel
|
||||
// can also be used to tell the UI that something happened in the background, such as
|
||||
// detecting a watch, detecting new tracks to import, and so forth.
|
||||
let (ui_tx, ui_rx) = async_channel::unbounded::<app::AppResponse>();
|
||||
|
||||
// These channels are used for communicating with the app. Already I can see that a lot of
|
||||
// different event handlers will need copies of app_tx in order to send requests into the
|
||||
// UI.
|
||||
let (app_tx, app_rx) = async_channel::unbounded::<app::AppInvocation>();
|
||||
|
||||
let window = AppWindow::new(app_id, RESOURCE_BASE_PATH, adw_app, app_tx.clone());
|
||||
|
||||
// Spawn a future where the UI will receive messages for the app window. Previously, this
|
||||
// would have been done by creating a glib::MainContext::channel(), but that has been
|
||||
// deprecated since gtk 4.10 in favor of using `async_channel`.
|
||||
glib::spawn_future_local(async move {
|
||||
// The app requests data to start with. This kicks everything off. The response from
|
||||
// the app will cause the window to be updated shortly.
|
||||
let _ = app_tx.send(app::AppInvocation::RequestRecords).await;
|
||||
|
||||
while let Ok(response) = ui_rx.recv().await {
|
||||
window.process_response(response);
|
||||
}
|
||||
});
|
||||
|
||||
// The tokio runtime starts up here and will handle all of the asynchronous operations that
|
||||
// the application needs to do. Messages arrive on `app_rx` and responses will be sent via
|
||||
// `ui_tx`.
|
||||
runtime.spawn({
|
||||
let app = app.clone();
|
||||
async move {
|
||||
while let Ok(invocation) = app_rx.recv().await {
|
||||
let response = app.process_invocation(invocation).await;
|
||||
let _ = ui_tx.send(response).await;
|
||||
}
|
||||
}
|
||||
});
|
||||
AppWindow::new(app_id, RESOURCE_BASE_PATH, adw_app, ft_app.clone());
|
||||
});
|
||||
|
||||
let args: Vec<String> = env::args().collect();
|
||||
|
|
|
@ -25,12 +25,6 @@ pub use placeholder_view::PlaceholderView;
|
|||
mod welcome_view;
|
||||
pub use welcome_view::WelcomeView;
|
||||
|
||||
#[derive(Clone, Debug, PartialEq)]
|
||||
pub enum ViewName {
|
||||
Welcome,
|
||||
Historical,
|
||||
}
|
||||
|
||||
pub enum View {
|
||||
Placeholder(PlaceholderView),
|
||||
Welcome(WelcomeView),
|
||||
|
|
|
@ -14,7 +14,7 @@ General Public License for more details.
|
|||
You should have received a copy of the GNU General Public License along with FitnessTrax. If not, see <https://www.gnu.org/licenses/>.
|
||||
*/
|
||||
|
||||
use crate::components::FileChooserRow;
|
||||
use crate::{app::App, components::FileChooserRow};
|
||||
use glib::Object;
|
||||
use gtk::{prelude::*, subclass::prelude::*};
|
||||
use std::path::PathBuf;
|
||||
|
@ -43,9 +43,9 @@ glib::wrapper! {
|
|||
}
|
||||
|
||||
impl WelcomeView {
|
||||
pub fn new<F>(on_save: Box<F>) -> Self
|
||||
pub fn new<OnSave>(on_save: OnSave) -> Self
|
||||
where
|
||||
F: Fn(PathBuf) + 'static,
|
||||
OnSave: Fn(PathBuf) + 'static,
|
||||
{
|
||||
let s: Self = Object::builder().build();
|
||||
s.set_orientation(gtk::Orientation::Vertical);
|
||||
|
@ -80,11 +80,11 @@ impl WelcomeView {
|
|||
content.append(>k::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 = on_save;
|
||||
save_button.connect_clicked({
|
||||
let db_row = db_row.clone();
|
||||
move |_| {
|
||||
if let Some(path) = db_row.path() {
|
||||
on_save(path)
|
||||
on_save(path);
|
||||
}
|
||||
}
|
||||
});
|
||||
|
|
Loading…
Reference in New Issue