tomo/tomo-old
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The system can now focus previous, next

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This commit is contained in:
Sasha Koshka
2023-04-15 21:49:40 -04:00
parent 0a21f605fb
commit e16195d274
3 changed files with 58 additions and 13 deletions
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21
backends/x/entity.go
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@@ -30,8 +30,10 @@ func (backend *Backend) NewEntity (owner tomo.Element) tomo.Entity {
func (ent *entity) unlink () {
ent.propagate (func (child *entity) bool {
if child.window != nil {
delete(ent.window.system.drawingInvalid, child)
}
child.window = nil
delete(ent.window.system.drawingInvalid, child)
return true
})
@@ -61,17 +63,19 @@ func (ent *entity) setWindow (window *window) {
})
}
func (entity *entity) propagate (callback func (*entity) bool) {
func (entity *entity) propagate (callback func (*entity) bool) bool {
for _, child := range entity.children {
if !callback(child) { break }
child.propagate(callback)
if !child.propagate(callback) {
return false
}
}
return callback(entity)
}
func (entity *entity) childAt (point image.Point) *entity {
for _, child := range entity.children {
if point.In(child.bounds) {
return child
return child.childAt(point)
}
}
return entity
@@ -190,12 +194,7 @@ func (entity *entity) Focused () bool {
func (entity *entity) Focus () {
if entity.window == nil { return }
previous := entity.window.focused
entity.window.focused = entity
if previous != nil {
previous.element.(tomo.Focusable).HandleFocusChange()
}
entity.element.(tomo.Focusable).HandleFocusChange()
entity.window.system.focus(entity)
}
func (entity *entity) FocusNext () {