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chore: Sync with Relm4 new-approach branch

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Michael Aaron Murphy 2022-01-31 15:55:55 +01:00
parent c25812a45b
commit 3e4a00a8d8
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GPG key ID: B2732D4240C9212C
12 changed files with 123 additions and 463 deletions
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66
crates/component-system/examples/basic/components/app.rs
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@ -21,20 +21,29 @@ component! {
/// Widgets that are initialized in the view.
pub struct AppWidgets {
list: gtk::ListBox,
destroyable: Option<Handle<gtk::Box, InfoButtonInput>>,
counter: Handle<gtk::Box, InfoButtonInput>,
destroyable: Option<Controller<gtk::Box, InfoButtonInput>>,
counter: Controller<gtk::Box, InfoButtonInput>,
}
type Input = AppEvent;
type Output = ();
type Root = gtk::ApplicationWindow {
Default::default()
type Root = gtk::Box {
ccs::view! {
root = gtk::Box {
set_halign: gtk::Align::Center,
set_size_request: args!(400, -1),
set_orientation: gtk::Orientation::Vertical,
}
}
root
};
fn init(app: gtk::Application, root, input, output) {
fn init(window: gtk::ApplicationWindow, root, input, _output) {
let button_group = gtk::SizeGroup::new(gtk::SizeGroupMode::Both);
let destroyable = InfoButton::init((String::new(), "Destroy".into(), button_group.clone()))
let destroyable = InfoButton::init()
.launch_stateful((String::new(), "Destroy".into(), button_group.clone()))
.forward(input.clone(), |event| match event {
InfoButtonOutput::Clicked => AppEvent::Destroy,
});
@ -45,64 +54,59 @@ component! {
));
// Create a counter component, too.
let counter = InfoButton::init(("Click me too".into(), "Click".into(), button_group))
let counter = InfoButton::init()
.launch_stateful(("Click me too".into(), "Click".into(), button_group))
.forward(input.clone(), |event| match event {
InfoButtonOutput::Clicked => AppEvent::Increment,
});
ccs::view! {
container = gtk::Box {
set_halign: gtk::Align::Center,
set_size_request: args!(400, -1),
set_orientation: gtk::Orientation::Vertical,
list = gtk::ListBox {
set_selection_mode: gtk::SelectionMode::None,
set_hexpand: true,
append: list = &gtk::ListBox {
set_selection_mode: gtk::SelectionMode::None,
set_hexpand: true,
append: destroyable.widget(),
append: counter.widget(),
}
append: &destroyable.widget,
append: &counter.widget,
}
}
root.set_application(Some(&app));
root.set_child(Some(&container));
root.append(&list);
window.set_child(Some(root));
root.show();
ComponentInner {
Fuselage {
model: Self::default(),
widgets: AppWidgets { list, destroyable: Some(destroyable), counter },
input,
output
}
}
/// Updates the view
fn update(component, event) {
let &mut ComponentInner { ref mut model, ref mut widgets, .. } = component;
fn update(&mut self, widgets, event, _input, _output) {
match event {
AppEvent::Increment => {
model.counter += 1;
self.counter += 1;
widgets
.counter
.emit(InfoButtonInput::SetDescription(format!(
"Clicked {} times",
model.counter
self.counter
)));
}
AppEvent::Destroy => {
// Components are kept alive by their root GTK widget.
if let Some(handle) = widgets.destroyable.take() {
if let Some(parent) = handle.widget().parent() {
if let Some(parent) = handle.widget.parent() {
widgets.list.remove(&parent);
}
}
}
}
None
}
async fn command(_message: (), _input) {
}
}