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Allow transparent divs to be considered "top layers"

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This changes the meaning of `was_top_layer` so that it is checking that
nothing opaque is on top of the given layer. The layer in question
need not be opaque.
This commit is contained in:
Max Brunsfeld 2023-12-18 18:32:03 -08:00
parent b88370d5ad
commit 2979eb9da9
1 changed files with 20 additions and 13 deletions
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33
crates/gpui2/src/window.rs
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@ -942,16 +942,20 @@ impl<'a> WindowContext<'a> {
}
}
/// Returns true if the top-most opaque layer painted over this point was part of the
/// same layer as the given stacking order.
/// Returns true if there is no opaque layer containing the given point
/// on top of the given level. Layers whose level is an extension of the
/// level are not considered to be on top of the level.
pub fn was_top_layer(&self, point: &Point<Pixels>, level: &StackingOrder) -> bool {
for (stack, bounds) in self.window.rendered_frame.depth_map.iter() {
if bounds.contains(point) {
return level.starts_with(stack) || stack.starts_with(level);
for (opaque_level, bounds) in self.window.rendered_frame.depth_map.iter() {
if level >= opaque_level {
break;
}
if bounds.contains(point) && !opaque_level.starts_with(level) {
return false;
}
}
false
true
}
pub fn was_top_layer_under_active_drag(
@ -959,16 +963,19 @@ impl<'a> WindowContext<'a> {
point: &Point<Pixels>,
level: &StackingOrder,
) -> bool {
for (stack, bounds) in self.window.rendered_frame.depth_map.iter() {
if stack.starts_with(&[ACTIVE_DRAG_Z_INDEX]) {
for (opaque_level, bounds) in self.window.rendered_frame.depth_map.iter() {
if level >= opaque_level {
break;
}
if opaque_level.starts_with(&[ACTIVE_DRAG_Z_INDEX]) {
continue;
}
if bounds.contains(point) {
return level.starts_with(stack) || stack.starts_with(level);
if bounds.contains(point) && !opaque_level.starts_with(level) {
return false;
}
}
false
true
}
/// Called during painting to get the current stacking order.