89 lines
2.3 KiB
Rust
89 lines
2.3 KiB
Rust
use cascade::cascade;
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use gtk4::{glib, prelude::*, subclass::prelude::*};
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use crate::deref_cell::DerefCell;
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/// Unlike gtk4's `MenuButton`, this supports a custom child.
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#[derive(Default)]
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pub struct PopoverContainerInner {
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child: DerefCell<gtk4::Widget>,
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popover: DerefCell<gtk4::Popover>,
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}
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#[glib::object_subclass]
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impl ObjectSubclass for PopoverContainerInner {
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const NAME: &'static str = "S76PopoverContainer";
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type ParentType = gtk4::Widget;
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type Type = PopoverContainer;
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}
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impl ObjectImpl for PopoverContainerInner {
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fn constructed(&self, obj: &PopoverContainer) {
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let popover = cascade! {
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gtk4::Popover::new();
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..set_parent(obj);
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};
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self.popover.set(popover);
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}
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fn dispose(&self, _obj: &PopoverContainer) {
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self.child.unparent();
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self.popover.unparent();
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}
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}
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impl WidgetImpl for PopoverContainerInner {
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fn measure(
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&self,
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_obj: &PopoverContainer,
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orientation: gtk4::Orientation,
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for_size: i32,
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) -> (i32, i32, i32, i32) {
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self.child.measure(orientation, for_size)
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}
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fn size_allocate(&self, _obj: &PopoverContainer, width: i32, height: i32, baseline: i32) {
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self.child
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.size_allocate(>k4::Allocation::new(0, 0, width, height), baseline);
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self.popover.present();
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}
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fn focus(&self, _obj: &PopoverContainer, direction: gtk4::DirectionType) -> bool {
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if self.popover.is_visible() {
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self.popover.child_focus(direction)
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} else {
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self.child.child_focus(direction)
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}
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}
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}
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glib::wrapper! {
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pub struct PopoverContainer(ObjectSubclass<PopoverContainerInner>)
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@extends gtk4::Widget;
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}
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impl PopoverContainer {
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pub fn new<T: IsA<gtk4::Widget>>(child: &T) -> Self {
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let obj = glib::Object::new::<Self>(&[]).unwrap();
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child.set_parent(&obj);
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obj.inner().child.set(child.clone().upcast());
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obj
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}
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fn inner(&self) -> &PopoverContainerInner {
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PopoverContainerInner::from_instance(self)
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}
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pub fn popover(&self) -> >k4::Popover {
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&self.inner().popover
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}
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pub fn popup(&self) {
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self.popover().popup();
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}
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pub fn popdown(&self) {
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self.popover().popdown();
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}
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}
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