libcosmic/examples/app_library/grid_item/mod.rs
2021-12-30 17:53:06 -05:00

93 lines
3.1 KiB
Rust

use gdk4::ContentProvider;
use gdk4::Display;
use gio::File;
use gio::Icon;
use gtk4::prelude::*;
use gtk4::subclass::prelude::*;
use gtk4::traits::WidgetExt;
use gtk4::DragSource;
use gtk4::IconTheme;
use gtk4::{gio, glib};
use crate::app_group::AppGroup;
mod imp;
glib::wrapper! {
pub struct GridItem(ObjectSubclass<imp::GridItem>)
@extends gtk4::Widget, gtk4::Box,
@implements gtk4::Accessible, gtk4::Actionable, gtk4::Buildable, gtk4::ConstraintTarget;
}
impl Default for GridItem {
fn default() -> Self {
Self::new()
}
}
impl GridItem {
pub fn new() -> Self {
glib::Object::new(&[]).expect("Failed to create GridItem")
}
pub fn set_app_info(&self, app_info: &gio::DesktopAppInfo) {
let self_ = imp::GridItem::from_instance(self);
self_.name.set_text(&app_info.name());
let drag_controller = DragSource::builder()
.name("application library drag source")
.actions(gdk4::DragAction::COPY)
// .content()
.build();
self.add_controller(&drag_controller);
if let Some(file) = app_info.filename() {
let file = File::for_path(file);
let provider = ContentProvider::for_value(&file.to_value());
drag_controller.set_content(Some(&provider));
}
let icon = app_info
.icon()
.unwrap_or(Icon::for_string("image-missing").expect("Failed to set default icon"));
self_.image.set_from_gicon(&icon);
drag_controller.connect_drag_begin(glib::clone!(@weak icon, => move |_self, drag| {
drag.set_selected_action(gdk4::DragAction::MOVE);
// set drag source icon if possible...
// gio Icon is not easily converted to a Paintable, but this seems to be the correct method
if let Some(default_display) = &Display::default() {
if let Some(icon_theme) = IconTheme::for_display(default_display) {
if let Some(paintable_icon) = icon_theme.lookup_by_gicon(
&icon,
64,
1,
gtk4::TextDirection::None,
gtk4::IconLookupFlags::empty(),
) {
_self.set_icon(Some(&paintable_icon), 32, 32);
}
}
}
}));
}
pub fn set_group_info(&self, app_group: AppGroup) {
let self_ = imp::GridItem::from_instance(self);
if let Ok(name) = app_group.property("name") {
self_.name.set_text(
&name
.get::<String>()
.expect("property name needs to be a string."),
);
}
if let Ok(icon) = app_group.property("icon") {
self_.image.set_from_icon_name(Some(
&icon
.get::<String>()
.expect("Property name needs to be a String."),
));
}
}
pub fn set_index(&self, index: u32) {
imp::GridItem::from_instance(self).index.set(index);
}
}