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Implemented all focus methods except for HandleFocus

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I am dreading this
This commit is contained in:
Sasha Koshka 2023-03-04 00:38:37 -05:00
parent 5af8d7fd97
commit c13cdd570d
1 changed files with 17 additions and 6 deletions
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23
elements/core/propagator.go
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@ -21,6 +21,9 @@ type Propagator struct {
iterator ChildIterator iterator ChildIterator
drags [10]elements.MouseTarget drags [10]elements.MouseTarget
focused bool focused bool
onFocusRequest func () (granted bool)
onFocusMotionRequest func (input.KeynavDirection) (granted bool)
} }
// NewPropagator creates a new event propagator that uses the specified iterator // NewPropagator creates a new event propagator that uses the specified iterator
@ -45,7 +48,9 @@ func (propagator *Propagator) Focused () (focused bool) {
// Focus focuses this element, if its parent element grants the // Focus focuses this element, if its parent element grants the
// request. // request.
func (propagator *Propagator) Focus () { func (propagator *Propagator) Focus () {
// TODO if propagator.onFocusRequest != nil {
propagator.onFocusRequest()
}
} }
// HandleFocus causes this element to mark itself as focused. If the // HandleFocus causes this element to mark itself as focused. If the
@ -60,23 +65,29 @@ func (propagator *Propagator) HandleFocus (direction input.KeynavDirection) (acc
// HandleDeselection causes this element to mark itself and all of its children // HandleDeselection causes this element to mark itself and all of its children
// as unfocused. // as unfocused.
func (propagator *Propagator) HandleUnfocus () { func (propagator *Propagator) HandleUnfocus () {
// TODO propagator.forFocusable (func (child elements.Focusable) bool {
child.HandleUnfocus()
return true
})
propagator.focused = false
} }
// OnFocusRequest sets a function to be called when this element wants its // OnFocusRequest sets a function to be called when this element wants its
// parent element to focus it. Parent elements should return true if the request // parent element to focus it. Parent elements should return true if the request
// was granted, and false if it was not. If the parent element returns true, the // was granted, and false if it was not. If the parent element returns true, the
// element acts as if a HandleFocus call was made with KeynavDirectionNeutral. // element acts as if a HandleFocus call was made with KeynavDirectionNeutral.
func (propagator *Propagator) OnFocusRequest (func () (granted bool)) { func (propagator *Propagator) OnFocusRequest (callback func () (granted bool)) {
// TODO propagator.onFocusRequest = callback
} }
// OnFocusMotionRequest sets a function to be called when this element wants its // OnFocusMotionRequest sets a function to be called when this element wants its
// parent element to focus the element behind or in front of it, depending on // parent element to focus the element behind or in front of it, depending on
// the specified direction. Parent elements should return true if the request // the specified direction. Parent elements should return true if the request
// was granted, and false if it was not. // was granted, and false if it was not.
func (propagator *Propagator) OnFocusMotionRequest (func (direction input.KeynavDirection) (granted bool)) { func (propagator *Propagator) OnFocusMotionRequest (
// TODO callback func (direction input.KeynavDirection) (granted bool),
) {
propagator.onFocusMotionRequest = callback
} }
// HandleKeyDown propogates the keyboard event to the currently selected child. // HandleKeyDown propogates the keyboard event to the currently selected child.