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package tcellterm
import (
"fmt"
"github.com/gdamore/tcell/v2"
)
func (vt *VT) handleMouse(ev *tcell.EventMouse) string {
if vt.mode&mouseButtons == 0 && vt.mode&mouseDrag == 0 && vt.mode&mouseMotion == 0 && vt.mode&mouseSGR == 0 {
if vt.mode&altScroll != 0 && vt.mode&smcup != 0 {
// Translate wheel motion into arrows up and down
// 3x rows
if ev.Buttons()&tcell.WheelUp != 0 {
vt.pty.WriteString(info.KeyUp)
vt.pty.WriteString(info.KeyUp)
vt.pty.WriteString(info.KeyUp)
}
if ev.Buttons()&tcell.WheelDown != 0 {
vt.pty.WriteString(info.KeyDown)
vt.pty.WriteString(info.KeyDown)
vt.pty.WriteString(info.KeyDown)
}
}
return ""
}
// Return early if we aren't reporting motion or drag events
if vt.mode&mouseButtons != 0 && vt.mouseBtn == ev.Buttons() {
// motion or drag
return ""
}
if vt.mode&mouseDrag != 0 && vt.mouseBtn == tcell.ButtonNone && ev.Buttons() == tcell.ButtonNone {
// Motion event
return ""
}
// Encode the button
var b int
if ev.Buttons()&tcell.Button1 != 0 {
b += 0
}
if ev.Buttons()&tcell.Button3 != 0 {
b += 1
}
if ev.Buttons()&tcell.Button2 != 0 {
b += 2
}
if ev.Buttons() == tcell.ButtonNone {
b += 3
}
if ev.Buttons()&tcell.WheelUp != 0 {
b += 0 + 64
}
if ev.Buttons()&tcell.WheelDown != 0 {
b += 1 + 64
}
if ev.Modifiers()&tcell.ModShift != 0 {
b += 4
}
if ev.Modifiers()&tcell.ModAlt != 0 {
b += 8
}
if ev.Modifiers()&tcell.ModCtrl != 0 {
b += 16
}
if vt.mode&mouseButtons == 0 && vt.mouseBtn != tcell.ButtonNone && ev.Buttons() != tcell.ButtonNone {
// drag event
b += 32
}
col, row := ev.Position()
if vt.mode&mouseSGR != 0 {
switch {
case ev.Buttons()&tcell.WheelUp != 0:
return fmt.Sprintf("\x1b[<%d;%d;%dM", b, col+1, row+1)
case ev.Buttons()&tcell.WheelDown != 0:
return fmt.Sprintf("\x1b[<%d;%d;%dM", b, col+1, row+1)
case ev.Buttons() == tcell.ButtonNone && vt.mouseBtn != tcell.ButtonNone:
// Button was in, and now it's not
var button int
switch vt.mouseBtn {
case tcell.Button1:
button = 0
case tcell.Button3:
button = 1
case tcell.Button2:
button = 2
}
vt.mouseBtn = ev.Buttons()
return fmt.Sprintf("\x1b[<%d;%d;%dm", button, col+1, row+1)
default:
vt.mouseBtn = ev.Buttons()
return fmt.Sprintf("\x1b[<%d;%d;%dM", b, col+1, row+1)
}
}
encodedCol := 32 + col + 1
encodedRow := 32 + row + 1
b += 32
vt.mouseBtn = ev.Buttons()
return fmt.Sprintf("\x1b[M%c%c%c", b, encodedCol, encodedRow)
}
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