Relayout base layer when layout is invalidated from an overlay

This commit is contained in:
Héctor Ramón Jiménez 2022-05-13 19:07:54 +02:00
parent 4c98de0a53
commit 296e157dcf
No known key found for this signature in database
GPG key ID: 140CC052C94F138E
2 changed files with 50 additions and 22 deletions

View file

@ -31,6 +31,11 @@ impl<'a, Message> Shell<'a, Message> {
}
}
/// Returns whether the current layout is invalid or not.
pub fn is_layout_invalid(&self) -> bool {
self.is_layout_invalid
}
/// Publish the given `Message` for an application to process it.
pub fn publish(&mut self, message: Message) {
self.messages.push(message);

View file

@ -177,40 +177,61 @@ where
clipboard: &mut dyn Clipboard,
messages: &mut Vec<Message>,
) -> (State, Vec<event::Status>) {
use std::mem::ManuallyDrop;
let mut state = State::Updated;
let mut manual_overlay = ManuallyDrop::new(
self.root.overlay(Layout::new(&self.base), renderer),
);
let (base_cursor, overlay_statuses) = if let Some(mut overlay) =
self.root.overlay(Layout::new(&self.base), renderer)
{
let (base_cursor, overlay_statuses) = if manual_overlay.is_some() {
let bounds = self.bounds;
let mut overlay = manual_overlay.as_mut().unwrap();
let mut layout = overlay.layout(renderer, bounds);
let mut event_statuses = Vec::new();
let event_statuses = events
.iter()
.cloned()
.map(|event| {
let mut shell = Shell::new(messages);
for event in events.iter().cloned() {
let mut shell = Shell::new(messages);
let event_status = overlay.on_event(
event,
Layout::new(&layout),
cursor_position,
renderer,
clipboard,
&mut shell,
let event_status = overlay.on_event(
event,
Layout::new(&layout),
cursor_position,
renderer,
clipboard,
&mut shell,
);
event_statuses.push(event_status);
if shell.is_layout_invalid() {
let _ = ManuallyDrop::into_inner(manual_overlay);
self.base = renderer.layout(
&self.root,
&layout::Limits::new(Size::ZERO, self.bounds),
);
manual_overlay = ManuallyDrop::new(
self.root.overlay(Layout::new(&self.base), renderer),
);
if manual_overlay.is_none() {
break;
}
overlay = manual_overlay.as_mut().unwrap();
shell.revalidate_layout(|| {
layout = overlay.layout(renderer, bounds);
});
}
if shell.are_widgets_invalid() {
state = State::Outdated;
}
event_status
})
.collect();
if shell.are_widgets_invalid() {
state = State::Outdated;
}
}
let base_cursor = if layout.bounds().contains(cursor_position) {
// TODO: Type-safe cursor availability
@ -226,6 +247,8 @@ where
(cursor_position, vec![event::Status::Ignored; events.len()])
};
let _ = ManuallyDrop::into_inner(manual_overlay);
let event_statuses = events
.iter()
.cloned()