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Introduced a separate class-wide "selected" handler for DropDown. Resolves #206

merge-requests/1/merge
Oliver 4 years ago
parent
commit
997b18eeff
  1. 23
      dropdown.go

23
dropdown.go

@ -67,6 +67,10 @@ type DropDown struct { @@ -67,6 +67,10 @@ type DropDown struct {
// A callback function set by the Form class and called when the user leaves
// this form item.
finished func(tcell.Key)
// A callback function which is called when the user changes the drop-down's
// selection.
selected func(text string, index int)
}
// NewDropDown returns a new drop-down.
@ -203,13 +207,19 @@ func (d *DropDown) SetOptions(texts []string, selected func(text string, index i @@ -203,13 +207,19 @@ func (d *DropDown) SetOptions(texts []string, selected func(text string, index i
d.options = nil
for index, text := range texts {
func(t string, i int) {
d.AddOption(text, func() {
if selected != nil {
selected(t, i)
}
})
d.AddOption(text, nil)
}(text, index)
}
d.selected = selected
return d
}
// SetSelectedFunc sets a handler which is called when the user changes the
// drop-down's option. This handler will be called in addition and prior to
// an option's optional individual handler. The handler is provided with the
// selected option's text and index.
func (d *DropDown) SetSelectedFunc(handler func(text string, index int)) *DropDown {
d.selected = handler
return d
}
@ -362,6 +372,9 @@ func (d *DropDown) InputHandler() func(event *tcell.EventKey, setFocus func(p Pr @@ -362,6 +372,9 @@ func (d *DropDown) InputHandler() func(event *tcell.EventKey, setFocus func(p Pr
d.currentOption = index
// Trigger "selected" event.
if d.selected != nil {
d.selected(d.options[d.currentOption].Text, d.currentOption)
}
if d.options[d.currentOption].Selected != nil {
d.options[d.currentOption].Selected()
}

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