cosmic-applets/libcosmic-applet/src/button.rs
2022-07-05 16:21:23 -07:00

134 lines
3.6 KiB
Rust

use cosmic_panel_config::config::CosmicPanelConfig;
use gtk4::{glib, prelude::*, subclass::prelude::*};
use relm4_macros::view;
use crate::deref_cell::DerefCell;
static STYLE: &str = "
button.cosmic_applet_button {
border-radius: 12px;
transition: 100ms;
padding: 4px;
border-color: transparent;
background: transparent;
outline-color: transparent;
}
";
#[derive(Default)]
pub struct AppletButtonInner {
menu_button: DerefCell<gtk4::MenuButton>,
panel_config: DerefCell<CosmicPanelConfig>,
popover: DerefCell<gtk4::Popover>,
}
#[glib::object_subclass]
impl ObjectSubclass for AppletButtonInner {
const NAME: &'static str = "CosmicAppletButton";
type Type = AppletButton;
type ParentType = gtk4::Widget;
}
impl ObjectImpl for AppletButtonInner {
fn constructed(&self, obj: &AppletButton) {
view! {
menu_button = gtk4::MenuButton {
set_parent: obj,
add_css_class: "cosmic_applet_button",
set_has_frame: false,
#[wrap(Some)]
set_popover: popover = &gtk4::Popover {
// TODO: change if it can be positioned correctly?
set_has_arrow: false,
}
},
provider = gtk4::CssProvider {
load_from_data: STYLE.as_bytes(),
}
}
obj.set_layout_manager(Some(&gtk4::BinLayout::new()));
obj.style_context()
.add_provider(&provider, gtk4::STYLE_PROVIDER_PRIORITY_APPLICATION);
self.menu_button.set(menu_button);
self.popover.set(popover);
self.panel_config
.set(CosmicPanelConfig::load_from_env().unwrap_or_default());
}
fn dispose(&self, _obj: &AppletButton) {
self.menu_button.unparent();
}
}
impl WidgetImpl for AppletButtonInner {
fn compute_expand(&self, _obj: &AppletButton, hexpand: &mut bool, vexpand: &mut bool) {
*hexpand = self
.menu_button
.compute_expand(gtk4::Orientation::Horizontal);
*vexpand = self.menu_button.compute_expand(gtk4::Orientation::Vertical);
}
fn request_mode(&self, _obj: &AppletButton) -> gtk4::SizeRequestMode {
self.menu_button.request_mode()
}
}
impl WindowImpl for AppletButtonInner {}
glib::wrapper! {
pub struct AppletButton(ObjectSubclass<AppletButtonInner>)
@extends gtk4::Widget;
}
impl Default for AppletButton {
fn default() -> Self {
Self::new()
}
}
impl AppletButton {
pub fn new() -> Self {
glib::Object::new(&[]).unwrap()
}
fn inner(&self) -> &AppletButtonInner {
AppletButtonInner::from_instance(self)
}
// TODO: avoid multiple instances?
pub fn panel_config(&self) -> &CosmicPanelConfig {
&*self.inner().panel_config
}
pub fn set_button_child(&self, child: Option<&impl IsA<gtk4::Widget>>) {
self.inner().menu_button.set_child(child);
}
pub fn set_button_icon_name(&self, name: &str) {
let image = gtk4::Image::from_icon_name(name);
image.set_pixel_size(
self.panel_config()
.get_applet_icon_size()
.try_into()
.unwrap(),
); // XXX unwrap
self.set_button_child(Some(&image));
}
pub fn set_button_label(&self, label: &str) {
self.inner().menu_button.set_label(label);
}
pub fn set_popover_child(&self, child: Option<&impl IsA<gtk4::Widget>>) {
self.inner().popover.set_child(child);
}
pub fn popdown(&self) {
self.inner().popover.popdown();
}
pub fn popup(&self) {
self.inner().popover.popup();
}
}