libcosmic/examples/gtklauncher/main.rs
2021-12-16 09:45:42 -07:00

289 lines
11 KiB
Rust

use gtk4 as gtk;
mod application_row;
use application_row::ApplicationRow;
use gtk::gdk::Display;
use gtk::prelude::*;
use gtk::{gio, glib};
use libcosmic::x;
fn main() {
let application = gtk::Application::new(
Some("com.github.gtk-rs.examples.apps_launcher"),
Default::default(),
);
application.connect_activate(|app| {
let provider = gtk::CssProvider::new();
provider.load_from_data(include_bytes!("style.css"));
gtk::StyleContext::add_provider_for_display(
&Display::default().expect("Error initializing gtk css provider."),
&provider,
gtk::STYLE_PROVIDER_PRIORITY_APPLICATION,
);
build_ui(app);
});
application.run();
}
fn build_ui(app: &gtk::Application) {
let window = gtk::ApplicationWindow::builder()
.decorated(false)
.default_width(600)
.default_height(600)
.application(app)
.title("ListView: Applications Launcher")
.build();
let model = gio::ListStore::new(gio::AppInfo::static_type());
gio::AppInfo::all().iter().for_each(|app_info| {
model.append(app_info);
});
let window_model = gtk::Window::list_toplevels();
dbg!(window_model.clone());
for i in window_model {
dbg!(i);
}
// TODO window ui file and custom class
// TODO application search entry ui file and custom class
// TODO list open windows in application search entries
// TODO list aliases in application search entries
let factory = gtk::SignalListItemFactory::new();
// the "setup" stage is used for creating the widgets
factory.connect_setup(move |_factory, item| {
let row = ApplicationRow::new();
item.set_child(Some(&row));
});
// the bind stage is used for "binding" the data to the created widgets on the "setup" stage
factory.connect_bind(move |_factory, list_item| {
let app_info = list_item
.item()
.unwrap()
.downcast::<gio::AppInfo>()
.unwrap();
println!("position: {}", &list_item.position());
println!("{}", app_info.name());
// println!("{}", app_info.description());
let child = list_item
.child()
.unwrap()
.downcast::<ApplicationRow>()
.unwrap();
child.set_app_info(&app_info);
if list_item.position() < 9 {
child.set_shortcut(list_item.position() + 1);
}
});
// A sorter used to sort AppInfo in the model by their name
let sorter = gtk::CustomSorter::new(move |obj1, obj2| {
let app_info1 = obj1.downcast_ref::<gio::AppInfo>().unwrap();
let app_info2 = obj2.downcast_ref::<gio::AppInfo>().unwrap();
app_info1
.name()
.to_lowercase()
.cmp(&app_info2.name().to_lowercase())
.into()
});
let filter = gtk::CustomFilter::new(|_obj| true);
let filter_model = gtk::FilterListModel::new(Some(&model), Some(filter).as_ref());
let sorted_model = gtk::SortListModel::new(Some(&filter_model), Some(&sorter));
let slice_model = gtk::SliceListModel::new(Some(&sorted_model), 0, 9);
let selection_model = gtk::SingleSelection::new(Some(&slice_model));
let list_view = gtk::ListView::new(Some(&selection_model), Some(&factory));
let action_launch = gio::SimpleAction::new("launch", Some(&i32::static_variant_type()));
action_launch.connect_activate(glib::clone!(@weak list_view => move |_action, parameter| {
// Get parameter
let parameter = parameter
.expect("Could not get parameter.")
.get::<i32>()
.expect("The variant needs to be of type `i32`.");
println!("{}", parameter);
let model = list_view.model().unwrap();
let app_info = model
.item(u32::try_from(parameter).unwrap());
if app_info.is_none() {return}
let app_info = app_info
.unwrap()
.downcast::<gio::AppInfo>()
.unwrap();
let context = list_view.display().app_launch_context();
if let Err(err) = app_info.launch(&[], Some(&context)) {
let parent_window = list_view.root().unwrap().downcast::<gtk::Window>().unwrap();
gtk::MessageDialog::builder()
.text(&format!("Failed to start {}", app_info.name()))
.secondary_text(&err.to_string())
.message_type(gtk::MessageType::Error)
.modal(true)
.transient_for(&parent_window)
.build()
.show();
}
}));
window.add_action(&action_launch);
for i in 1..10 {
let action_launchi = gio::SimpleAction::new(&format!("launch{}", i), None);
app.set_accels_for_action(&format!("win.launch{}", i), &[&format!("<primary>{}", i)]);
window.add_action(&action_launchi);
action_launchi.connect_activate(
glib::clone!(@weak action_launch, @weak list_view => move |_action, _parameter| {
let model = list_view.model().unwrap();
let app_info = model
.item(i-1);
println!("launching item {}", i);
if app_info.is_none() {return}
let app_info = app_info
.unwrap()
.downcast::<gio::AppInfo>()
.unwrap();
println!("starting {}", app_info.name());
let context = list_view.display().app_launch_context();
if let Err(err) = app_info.launch(&[], Some(&context)) {
let parent_window = list_view.root().unwrap().downcast::<gtk::Window>().unwrap();
gtk::MessageDialog::builder()
.text(&format!("Failed to start {}", app_info.name()))
.secondary_text(&err.to_string())
.message_type(gtk::MessageType::Error)
.modal(true)
.transient_for(&parent_window)
.build()
.show();
}
}),
);
}
// Launch the application when an item of the list is activated
list_view.connect_activate(move |list_view, position| {
let model = list_view.model().unwrap();
let app_info = model
.item(position)
.unwrap()
.downcast::<gio::AppInfo>()
.unwrap();
let context = list_view.display().app_launch_context();
if let Err(err) = app_info.launch(&[], Some(&context)) {
let parent_window = list_view.root().unwrap().downcast::<gtk::Window>().unwrap();
gtk::MessageDialog::builder()
.text(&format!("Failed to start {}", app_info.name()))
.secondary_text(&err.to_string())
.message_type(gtk::MessageType::Error)
.modal(true)
.transient_for(&parent_window)
.build()
.show();
}
});
let scrolled_window = gtk::ScrolledWindow::builder()
.hscrollbar_policy(gtk::PolicyType::Never) // Disable horizontal scrolling
.min_content_width(360)
.vexpand(true)
.child(&list_view)
.build();
let launcher_box = gtk::Box::builder()
.margin_top(12)
.margin_bottom(12)
.margin_start(12)
.margin_end(12)
//.valign(gtk::Align::Center)
//.halign(gtk::Align::Center)
//.spacing(12)
.orientation(gtk::Orientation::Vertical)
.build();
let search_input = gtk::Entry::builder()
//.margin_top(12)
.margin_bottom(12)
//.margin_start(12)
//.margin_end(12)
//.valign(gtk::Align::Center)
//.halign(gtk::Align::Center)
.build();
// Filter model whenever the value of the key "filter" changes
search_input.connect_changed(
glib::clone!(@weak filter_model, @weak sorted_model => move |search: &gtk::Entry| {
let search_text = search.text().to_string().to_lowercase();
let new_filter: gtk::CustomFilter = gtk::CustomFilter::new(move |obj| {
let search_res = obj.downcast_ref::<gio::AppInfo>()
.expect("The Object needs to be of type AppInfo");
search_res.name().to_string().to_lowercase().contains(&search_text)
});
let search_text = search.text().to_string().to_lowercase();
let new_sorter: gtk::CustomSorter = gtk::CustomSorter::new(move |obj1, obj2| {
let app_info1 = obj1.downcast_ref::<gio::AppInfo>().unwrap();
let app_info2 = obj2.downcast_ref::<gio::AppInfo>().unwrap();
if search_text == "" {
return app_info1
.name()
.to_lowercase()
.cmp(&app_info2.name().to_lowercase())
.into();
}
let i_1 = app_info1.name().to_lowercase().find(&search_text);
let i_2 = app_info2.name().to_lowercase().find(&search_text);
match (i_1, i_2) {
(Some(i_1), Some(i_2)) => i_1.cmp(&i_2).into(),
(Some(_), None) => std::cmp::Ordering::Less.into(),
(None, Some(_)) => std::cmp::Ordering::Greater.into(),
_ => app_info1
.name()
.to_lowercase()
.cmp(&app_info2.name().to_lowercase())
.into()
}
});
filter_model.set_filter(Some(new_filter).as_ref());
sorted_model.set_sorter(Some(new_sorter).as_ref());
}),
);
// Setting the window to dialog type must happen between realize and show. Dialog windows
// show up centered on the display with the cursor, so we do not have to set position
window.connect_realize(move |window| {
if let Some((display, surface)) = x::get_window_x11(window) {
unsafe {
x::change_property(
&display,
&surface,
"_NET_WM_WINDOW_TYPE",
x::PropMode::Replace,
&[x::Atom::new(&display, "_NET_WM_WINDOW_TYPE_DIALOG").unwrap()],
);
}
} else {
println!("failed to get X11 window");
}
});
launcher_box.append(&search_input);
launcher_box.append(&scrolled_window);
window.set_child(Some(&launcher_box));
// Add action "quit" to `window` taking no parameter
app.set_accels_for_action("win.quit", &["<primary>W", "Escape"]);
let action_quit = gio::SimpleAction::new("quit", None);
action_quit.connect_activate(glib::clone!(@weak window => move |_, _| {
window.close();
}));
window.add_action(&action_quit);
window.connect_is_active_notify(|win| {
if !win.is_active() {
win.close();
}
println!("active or not lets find out...");
});
window.show();
}