174 lines
5.1 KiB
Rust
174 lines
5.1 KiB
Rust
use glib::subclass::Signal;
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use gtk::{glib, glib::clone, prelude::*, subclass::prelude::*, CompositeTemplate};
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use super::Spinner;
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mod imp {
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use std::cell::Cell;
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use glib::subclass::InitializingObject;
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use once_cell::sync::Lazy;
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use super::*;
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#[derive(Debug, Default, CompositeTemplate)]
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#[template(resource = "/org/gnome/Fractal/ui/components/loading_listbox_row.ui")]
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pub struct LoadingListBoxRow {
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#[template_child]
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pub spinner: TemplateChild<Spinner>,
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#[template_child]
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pub stack: TemplateChild<gtk::Stack>,
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#[template_child]
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pub error: TemplateChild<gtk::Box>,
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#[template_child]
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pub error_label: TemplateChild<gtk::Label>,
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#[template_child]
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pub retry_button: TemplateChild<gtk::Button>,
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pub is_error: Cell<bool>,
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}
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#[glib::object_subclass]
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impl ObjectSubclass for LoadingListBoxRow {
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const NAME: &'static str = "ComponentsLoadingListBoxRow";
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type Type = super::LoadingListBoxRow;
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type ParentType = gtk::ListBoxRow;
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fn class_init(klass: &mut Self::Class) {
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Self::bind_template(klass);
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}
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fn instance_init(obj: &InitializingObject<Self>) {
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obj.init_template();
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}
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}
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impl ObjectImpl for LoadingListBoxRow {
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fn properties() -> &'static [glib::ParamSpec] {
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static PROPERTIES: Lazy<Vec<glib::ParamSpec>> = Lazy::new(|| {
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vec![
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glib::ParamSpecBoolean::builder("loading")
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.default_value(true)
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.explicit_notify()
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.build(),
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glib::ParamSpecString::builder("error")
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.explicit_notify()
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.build(),
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]
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});
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PROPERTIES.as_ref()
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}
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fn set_property(&self, _id: usize, value: &glib::Value, pspec: &glib::ParamSpec) {
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let obj = self.obj();
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match pspec.name() {
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"loading" => {
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obj.set_loading(value.get().unwrap());
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}
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"error" => {
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obj.set_error(value.get().unwrap());
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}
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_ => unimplemented!(),
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}
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}
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fn property(&self, _id: usize, pspec: &glib::ParamSpec) -> glib::Value {
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let obj = self.obj();
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match pspec.name() {
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"loading" => obj.is_loading().to_value(),
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"error" => obj.error().to_value(),
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_ => unimplemented!(),
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}
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}
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fn signals() -> &'static [Signal] {
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static SIGNALS: Lazy<Vec<Signal>> =
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Lazy::new(|| vec![Signal::builder("retry").build()]);
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SIGNALS.as_ref()
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}
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fn constructed(&self) {
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self.parent_constructed();
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let obj = self.obj();
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self.retry_button
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.connect_clicked(clone!(@weak obj => move |_| {
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obj.emit_by_name::<()>("retry", &[]);
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}));
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}
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}
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impl WidgetImpl for LoadingListBoxRow {}
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impl ListBoxRowImpl for LoadingListBoxRow {}
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}
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glib::wrapper! {
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/// This is a `ListBoxRow` containing a loading spinner.
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///
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/// It's also possible to set an error once the loading fails including a retry button.
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pub struct LoadingListBoxRow(ObjectSubclass<imp::LoadingListBoxRow>)
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@extends gtk::Widget, gtk::ListBoxRow, @implements gtk::Accessible;
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}
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impl LoadingListBoxRow {
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pub fn new() -> Self {
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glib::Object::new()
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}
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/// Whether to show the loading spinner.
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pub fn is_loading(&self) -> bool {
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!self.imp().is_error.get()
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}
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/// Set whether to show the loading spinner.
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pub fn set_loading(&self, loading: bool) {
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let imp = self.imp();
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if self.is_loading() == loading {
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return;
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}
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imp.stack.set_visible_child(&*imp.spinner);
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imp.is_error.set(false);
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self.notify("loading");
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}
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/// The error message to display.
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pub fn error(&self) -> Option<glib::GString> {
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let message = self.imp().error_label.text();
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if message.is_empty() {
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None
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} else {
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Some(message)
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}
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}
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/// Set the error message to display.
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///
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/// If this is `Some`, the error will be shown, otherwise the spinner will
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/// be shown.
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pub fn set_error(&self, message: Option<&str>) {
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let imp = self.imp();
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if let Some(message) = message {
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imp.is_error.set(true);
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imp.error_label.set_text(message);
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imp.stack.set_visible_child(&*imp.error);
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} else {
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imp.is_error.set(false);
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imp.stack.set_visible_child(&*imp.spinner);
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}
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self.notify("error");
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}
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pub fn connect_retry<F: Fn(&Self) + 'static>(&self, f: F) -> glib::SignalHandlerId {
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self.connect_local("retry", true, move |values| {
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let obj = values[0].get::<Self>().unwrap();
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f(&obj);
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None
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})
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}
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}
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