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wtf/todo/list.go
Chris Cummer a0ce5eb412 Basic selectable todo functionality working
Can:
- move between todo items
- toggle checked/unchecked state

Cannot:
- persiste changes to file
- add items
- delete items
2018-04-22 20:59:13 -07:00

45 lines
762 B
Go

package todo
import ()
type List struct {
Items []*Item
selected int
}
func (list *List) Len() int {
return len(list.Items)
}
func (list *List) Less(i, j int) bool {
return list.Items[i].Index < list.Items[j].Index
}
func (list *List) Swap(i, j int) {
list.Items[i], list.Items[j] = list.Items[j], list.Items[i]
}
func (list *List) Next() {
list.selected = list.selected + 1
if list.selected >= len(list.Items) {
list.selected = 0
}
}
func (list *List) Prev() {
list.selected = list.selected - 1
if list.selected < 0 {
list.selected = len(list.Items) - 1
}
}
// Toggle switches the checked state of the selected item
func (list *List) Toggle() {
list.Items[list.selected].Toggle()
}
func (list *List) Unselect() {
list.selected = -1
}