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Allow dragging of the preview window

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This commit is contained in:
Junegunn Choi
2023-01-03 01:46:37 +09:00
parent 1fc1f47d80
commit c1cd0c09a2
1 changed files with 84 additions and 50 deletions
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134
src/terminal.go
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@@ -2588,7 +2588,9 @@ func (t *Terminal) Loop() {
t.eventChan <- t.tui.GetChar()
}
}()
dragging := false
previewDraggingPos := -1
barDragging := false
wasDown := false
for looping {
var newCommand *string
var reloadSync bool
@@ -3032,8 +3034,15 @@ func (t *Terminal) Loop() {
case actMouse:
me := event.MouseEvent
mx, my := me.X, me.Y
clicked := !wasDown && me.Down
wasDown = me.Down
if !me.Down {
barDragging = false
previewDraggingPos = -1
}
// Scrolling
if me.S != 0 {
// Scroll
if t.window.Enclose(my, mx) && t.merger.Length() > 0 {
if t.multi > 0 && me.Mod {
toggle()
@@ -3043,61 +3052,86 @@ func (t *Terminal) Loop() {
} else if t.hasPreviewWindow() && t.pwindow.Enclose(my, mx) {
scrollPreviewBy(-me.S)
}
} else if t.window.Enclose(my, mx) {
mx -= t.window.Left()
my -= t.window.Top()
min := 2 + len(t.header)
if t.noInfoLine() {
min--
break
}
// Preview dragging
if me.Down && (previewDraggingPos > 0 || clicked && t.hasPreviewWindow() && t.pwindow.Enclose(my, mx)) {
if previewDraggingPos > 0 {
scrollPreviewBy(previewDraggingPos - my)
}
h := t.window.Height()
switch t.layout {
case layoutDefault:
previewDraggingPos = my
break
}
// Ignored
if !t.window.Enclose(my, mx) && !barDragging {
break
}
// Translate coordinates
mx -= t.window.Left()
my -= t.window.Top()
min := 2 + len(t.header)
if t.noInfoLine() {
min--
}
h := t.window.Height()
switch t.layout {
case layoutDefault:
my = h - my - 1
case layoutReverseList:
if my < h-min {
my += min
} else {
my = h - my - 1
case layoutReverseList:
if my < h-min {
my += min
} else {
my = h - my - 1
}
}
// Scrollbar dragging
barDragging = me.Down && (barDragging || clicked && my >= min && mx == t.window.Width()-1)
if barDragging {
barLength, barStart := t.getScrollbar()
if barLength > 0 {
maxItems := t.maxItems()
if newBarStart := util.Constrain(my-min-barLength/2, 0, maxItems-barLength); newBarStart != barStart {
total := t.merger.Length()
prevOffset := t.offset
// barStart = (maxItems - barLength) * t.offset / (total - maxItems)
t.offset = int(math.Ceil(float64(newBarStart) * float64(total-maxItems) / float64(maxItems-barLength)))
t.cy = t.offset + t.cy - prevOffset
req(reqList)
}
}
dragging = me.Down && (dragging || my >= min && mx == t.window.Width()-1)
if me.Double {
// Double-click
if my >= min {
if t.vset(t.offset+my-min) && t.cy < t.merger.Length() {
return doActions(actionsFor(tui.DoubleClick))
}
break
}
// Double-click on an item
if me.Double && mx < t.window.Width()-1 {
// Double-click
if my >= min {
if t.vset(t.offset+my-min) && t.cy < t.merger.Length() {
return doActions(actionsFor(tui.DoubleClick))
}
} else if dragging && my >= min {
barLength, barStart := t.getScrollbar()
if barLength > 0 {
maxItems := t.maxItems()
if newBarStart := util.Constrain(my-min-barLength/2, 0, maxItems-barLength); newBarStart != barStart {
total := t.merger.Length()
prevOffset := t.offset
// barStart = (maxItems - barLength) * t.offset / (total - maxItems)
t.offset = int(math.Ceil(float64(newBarStart) * float64(total-maxItems) / float64(maxItems-barLength)))
t.cy = t.offset + t.cy - prevOffset
req(reqList)
}
}
break
}
if me.Down {
mx = util.Constrain(mx-t.promptLen, 0, len(t.input))
if my == t.promptLine() && mx >= 0 {
// Prompt
t.cx = mx + t.xoffset
} else if my >= min {
// List
if t.vset(t.offset+my-min) && t.multi > 0 && me.Mod {
toggle()
}
} else if me.Down {
mx = util.Constrain(mx-t.promptLen, 0, len(t.input))
if my == t.promptLine() && mx >= 0 {
// Prompt
t.cx = mx + t.xoffset
} else if my >= min {
// List
if t.vset(t.offset+my-min) && t.multi > 0 && me.Mod {
toggle()
}
req(reqList)
if me.Left {
return doActions(actionsFor(tui.LeftClick))
}
return doActions(actionsFor(tui.RightClick))
req(reqList)
if me.Left {
return doActions(actionsFor(tui.LeftClick))
}
return doActions(actionsFor(tui.RightClick))
}
}
case actReload, actReloadSync: