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Align context menu to fit within the window bounds

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This commit is contained in:
Antonio Scandurra 2022-06-02 09:47:06 +02:00
parent f1964cf2a0
commit 701e2090cd
3 changed files with 58 additions and 37 deletions
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45
crates/gpui/src/elements/overlay.rs
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@ -10,6 +10,8 @@ use crate::{
pub struct Overlay {
child: ElementBox,
abs_position: Option<Vector2F>,
align_to_fit: bool,
hoverable: bool,
}
impl Overlay {
@ -17,6 +19,8 @@ impl Overlay {
Self {
child,
abs_position: None,
align_to_fit: false,
hoverable: false,
}
}
@ -24,6 +28,16 @@ impl Overlay {
self.abs_position = Some(position);
self
}
pub fn align_to_fit(mut self, align_to_fit: bool) -> Self {
self.align_to_fit = align_to_fit;
self
}
pub fn hoverable(mut self, hoverable: bool) -> Self {
self.hoverable = hoverable;
self
}
}
impl Element for Overlay {
@ -51,15 +65,30 @@ impl Element for Overlay {
size: &mut Self::LayoutState,
cx: &mut PaintContext,
) {
let origin = self.abs_position.unwrap_or(bounds.origin());
let visible_bounds = RectF::new(origin, *size);
let mut bounds = RectF::new(self.abs_position.unwrap_or(bounds.origin()), *size);
cx.scene.push_stacking_context(None);
cx.scene.push_mouse_region(MouseRegion {
view_id: cx.current_view_id(),
bounds: visible_bounds,
..Default::default()
});
self.child.paint(origin, visible_bounds, cx);
if self.hoverable {
cx.scene.push_mouse_region(MouseRegion {
view_id: cx.current_view_id(),
bounds,
..Default::default()
});
}
if self.align_to_fit {
// Align overlay to the left if its bounds overflow the window width.
if bounds.lower_right().x() > cx.window_size.x() {
bounds.set_origin_x(bounds.origin_x() - bounds.width());
}
// Align overlay to the top if its bounds overflow the window height.
if bounds.lower_right().y() > cx.window_size.y() {
bounds.set_origin_y(bounds.origin_y() - bounds.height());
}
}
self.child.paint(bounds.origin(), bounds, cx);
cx.scene.pop_stacking_context();
}