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// This example should be updated soon...
#![allow(deprecated)]
/// Responsive sidebar layout inspired by the example code in the [libadwaita documentation].
///
/// Shrink the window small enough to see the sidebar and content pages become folded.
///
/// [libadwaita documentation]: https://gnome.pages.gitlab.gnome.org/libadwaita/doc/main/adaptive-layouts.html#leaflet
use adw::prelude::*;
use gtk::glib;
use relm4::prelude::*;
struct App {
current_section: u32,
}
#[relm4::component]
impl SimpleComponent for App {
type Input = u32;
type Output = ();
type Init = ();
view! {
adw::Window {
#[name = "leaflet"]
adw::Leaflet {
set_can_navigate_back: true,
gtk::Box {
set_orientation: gtk::Orientation::Vertical,
#[name = "sidebar_header"]
adw::HeaderBar {
#[wrap(Some)]
set_title_widget = &adw::WindowTitle {
set_title: "Sidebar",
}
},
gtk::ListBox {
set_selection_mode: gtk::SelectionMode::Single,
add_css_class: relm4::css::NAVIGATION_SIDEBAR,
adw::ActionRow {
set_title: "Section 1",
},
adw::ActionRow {
set_title: "Section 2",
},
adw::ActionRow {
set_title: "Section 3",
},
connect_row_selected[sender] => move |_, row| {
if let Some(row) = row {
sender.input((row.index() + 1) as u32);
}
}
}
},
append = >k::Separator {
set_orientation: gtk::Orientation::Vertical,
} -> {
set_navigatable: false,
},
gtk::Box {
set_orientation: gtk::Orientation::Vertical,
set_hexpand: true,
#[name = "content_header"]
adw::HeaderBar {
#[name = "back_button"]
pack_start = >k::Button {
set_icon_name: "go-previous-symbolic",
connect_clicked[leaflet] => move |_| {
leaflet.navigate(adw::NavigationDirection::Back);
}
},
#[wrap(Some)]
set_title_widget = &adw::WindowTitle {
set_title: "Content",
}
},
gtk::Label {
add_css_class: relm4::css::TITLE_1,
set_vexpand: true,
#[watch]
set_text: &format!("Page {}", model.current_section),
}
},
}
}
}
fn update(&mut self, msg: u32, _: ComponentSender<Self>) {
self.current_section = msg;
}
fn init(_: (), root: Self::Root, sender: ComponentSender<Self>) -> ComponentParts<Self> {
let model = App { current_section: 1 };
let widgets = view_output!();
widgets
.leaflet
.bind_property("folded", &widgets.sidebar_header, "show-end-title-buttons")
.flags(glib::BindingFlags::SYNC_CREATE)
.build();
widgets
.leaflet
.bind_property(
"folded",
&widgets.content_header,
"show-start-title-buttons",
)
.flags(glib::BindingFlags::SYNC_CREATE)
.build();
widgets
.leaflet
.bind_property("folded", &widgets.back_button, "visible")
.flags(glib::BindingFlags::SYNC_CREATE)
.build();
ComponentParts { model, widgets }
}
fn pre_view() {
widgets.leaflet.navigate(adw::NavigationDirection::Forward);
}
}
fn main() {
let app = RelmApp::new("relm4.example.leafletSidebar");
app.run::<App>(());
}