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Redid cores to conform to the new API changes

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This commit is contained in:
Sasha Koshka
2023-03-14 18:30:32 -04:00
parent b08cbea320
commit a34e8768ab
4 changed files with 93 additions and 107 deletions
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42
elements/core/selectable.go
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@@ -2,15 +2,15 @@ package core
// import "runtime/debug"
import "git.tebibyte.media/sashakoshka/tomo/input"
import "git.tebibyte.media/sashakoshka/tomo/elements"
// FocusableCore is a struct that can be embedded into objects to make them
// focusable, giving them the default keynav behavior.
type FocusableCore struct {
core CoreControl
focused bool
enabled bool
drawFocusChange func ()
onFocusRequest func () (granted bool)
onFocusMotionRequest func(input.KeynavDirection) (granted bool)
}
// NewFocusableCore creates a new focusability core and its corresponding
@@ -18,16 +18,18 @@ type FocusableCore struct {
// state changes (which it should), a callback to draw and push the update can
// be specified.
func NewFocusableCore (
core CoreControl,
drawFocusChange func (),
) (
core *FocusableCore,
focusable *FocusableCore,
control FocusableCoreControl,
) {
core = &FocusableCore {
focusable = &FocusableCore {
core: core,
drawFocusChange: drawFocusChange,
enabled: true,
}
control = FocusableCoreControl { core: core }
control = FocusableCoreControl { core: focusable }
return
}
@@ -39,13 +41,11 @@ func (core *FocusableCore) Focused () (focused bool) {
// Focus focuses this element, if its parent element grants the request.
func (core *FocusableCore) Focus () {
if !core.enabled || core.focused { return }
if core.onFocusRequest != nil {
if core.onFocusRequest() {
core.focused = true
if core.drawFocusChange != nil {
core.drawFocusChange()
}
}
parent := core.core.Parent()
if parent, ok := parent.(elements.FocusableParent); ok && parent != nil {
core.focused = parent.RequestFocus (
core.core.Outer().(elements.Focusable),
input.KeynavDirectionNeutral)
}
}
@@ -76,24 +76,6 @@ func (core *FocusableCore) HandleUnfocus () {
if core.drawFocusChange != nil { core.drawFocusChange() }
}
// 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 was granted, and false if it was not.
func (core *FocusableCore) OnFocusRequest (callback func () (granted bool)) {
core.onFocusRequest = callback
}
// 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 the specified direction. Parent elements
// should return true if the request was granted, and false if it was
// not.
func (core *FocusableCore) OnFocusMotionRequest (
callback func (direction input.KeynavDirection) (granted bool),
) {
core.onFocusMotionRequest = callback
}
// Enabled returns whether or not the element is enabled.
func (core *FocusableCore) Enabled () (enabled bool) {
return core.enabled