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Add `fn Memory::gained_kb_focus() -> bool` query

This commit is contained in:
Emil Ernerfeldt 2021-03-06 11:17:24 +01:00
parent 007f9f3cb9
commit 5d0c71350d
1 changed files with 10 additions and 1 deletions
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11
egui/src/memory.rs
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@ -207,9 +207,18 @@ impl Memory {
self.areas.layer_id_at(pos, resize_interact_radius_side)
}
pub(crate) fn had_kb_focus_last_frame(&self, id: Id) -> bool {
self.interaction.kb_focus_id_previous_frame == Some(id)
}
/// True if the given widget had keyboard focus last frame, but not this one.
pub fn lost_kb_focus(&self, id: Id) -> bool {
self.interaction.kb_focus_id_previous_frame == Some(id) && !self.has_kb_focus(id)
self.had_kb_focus_last_frame(id) && !self.has_kb_focus(id)
}
/// True if the given widget has keyboard focus this frame, but didn't last frame.
pub fn gained_kb_focus(&self, id: Id) -> bool {
!self.had_kb_focus_last_frame(id) && self.has_kb_focus(id)
}
pub fn has_kb_focus(&self, id: Id) -> bool {