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--multi to take optional argument to limit the number of selection

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Close #1718
Related #688
This commit is contained in:
Junegunn Choi
2019-11-02 12:55:26 +09:00
parent a2e9366c84
commit 072066c49c
4 changed files with 123 additions and 32 deletions
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75
src/terminal.go
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@@ -76,7 +76,7 @@ type Terminal struct {
xoffset int
yanked []rune
input []rune
multi bool
multi int
sort bool
toggleSort bool
delimiter Delimiter
@@ -750,8 +750,12 @@ func (t *Terminal) printInfo() {
output += " -S"
}
}
if t.multi && len(t.selected) > 0 {
output += fmt.Sprintf(" (%d)", len(t.selected))
if len(t.selected) > 0 {
if t.multi == maxMulti {
output += fmt.Sprintf(" (%d)", len(t.selected))
} else {
output += fmt.Sprintf(" (%d/%d)", len(t.selected), t.multi)
}
}
if t.progress > 0 && t.progress < 100 {
output += fmt.Sprintf(" (%d%%)", t.progress)
@@ -1426,9 +1430,18 @@ func (t *Terminal) buildPlusList(template string, forcePlus bool) (bool, []*Item
return true, sels
}
func (t *Terminal) selectItem(item *Item) {
func (t *Terminal) selectItem(item *Item) bool {
if len(t.selected) >= t.multi {
return false
}
if _, found := t.selected[item.Index()]; found {
return false
}
t.selected[item.Index()] = selectedItem{time.Now(), item}
t.version++
return true
}
func (t *Terminal) deselectItem(item *Item) {
@@ -1436,12 +1449,12 @@ func (t *Terminal) deselectItem(item *Item) {
t.version++
}
func (t *Terminal) toggleItem(item *Item) {
func (t *Terminal) toggleItem(item *Item) bool {
if _, found := t.selected[item.Index()]; !found {
t.selectItem(item)
} else {
t.deselectItem(item)
return t.selectItem(item)
}
t.deselectItem(item)
return true
}
func (t *Terminal) killPreview(code int) {
@@ -1687,11 +1700,12 @@ func (t *Terminal) Loop() {
}
}
}
toggle := func() {
if t.cy < t.merger.Length() {
t.toggleItem(t.merger.Get(t.cy).item)
toggle := func() bool {
if t.cy < t.merger.Length() && t.toggleItem(t.merger.Get(t.cy).item) {
req(reqInfo)
return true
}
return false
}
scrollPreview := func(amount int) {
if !t.previewer.more {
@@ -1813,27 +1827,42 @@ func (t *Terminal) Loop() {
t.cx--
}
case actSelectAll:
if t.multi {
if t.multi > 0 {
for i := 0; i < t.merger.Length(); i++ {
t.selectItem(t.merger.Get(i).item)
if !t.selectItem(t.merger.Get(i).item) {
break
}
}
req(reqList, reqInfo)
}
case actDeselectAll:
if t.multi {
if t.multi > 0 {
t.selected = make(map[int32]selectedItem)
t.version++
req(reqList, reqInfo)
}
case actToggle:
if t.multi && t.merger.Length() > 0 {
toggle()
if t.multi > 0 && t.merger.Length() > 0 && toggle() {
req(reqList)
}
case actToggleAll:
if t.multi {
if t.multi > 0 {
prevIndexes := make(map[int]struct{})
for i := 0; i < t.merger.Length() && len(t.selected) > 0; i++ {
item := t.merger.Get(i).item
if _, found := t.selected[item.Index()]; found {
prevIndexes[i] = struct{}{}
t.deselectItem(item)
}
}
for i := 0; i < t.merger.Length(); i++ {
t.toggleItem(t.merger.Get(i).item)
if _, found := prevIndexes[i]; !found {
item := t.merger.Get(i).item
if !t.selectItem(item) {
break
}
}
}
req(reqList, reqInfo)
}
@@ -1848,14 +1877,12 @@ func (t *Terminal) Loop() {
}
return doAction(action{t: actToggleUp}, mapkey)
case actToggleDown:
if t.multi && t.merger.Length() > 0 {
toggle()
if t.multi > 0 && t.merger.Length() > 0 && toggle() {
t.vmove(-1, true)
req(reqList)
}
case actToggleUp:
if t.multi && t.merger.Length() > 0 {
toggle()
if t.multi > 0 && t.merger.Length() > 0 && toggle() {
t.vmove(1, true)
req(reqList)
}
@@ -1959,7 +1986,7 @@ func (t *Terminal) Loop() {
if me.S != 0 {
// Scroll
if t.window.Enclose(my, mx) && t.merger.Length() > 0 {
if t.multi && me.Mod {
if t.multi > 0 && me.Mod {
toggle()
}
t.vmove(me.S, true)
@@ -1999,7 +2026,7 @@ func (t *Terminal) Loop() {
t.cx = mx + t.xoffset
} else if my >= min {
// List
if t.vset(t.offset+my-min) && t.multi && me.Mod {
if t.vset(t.offset+my-min) && t.multi > 0 && me.Mod {
toggle()
}
req(reqList)