// handles keyboard input
func inputHandler(inputWin *gc.Window, stdscr *gc.Window, contactsMenuWin *gc.Window, contactMenu *gc.Menu, msgWin *gc.Window) {
var NLlocate = map[int]newLine{}
var c gc.Char
var rawInput gc.Key
max_y, max_x := inputWin.MaxYX()
for {
rawInput = inputWin.GetChar()
c = gc.Char(rawInput)
// debugLog.Println(rawInput)
// debugLog.Println(c)
//Escape to Quit
if c == gc.Char(27) {
break
} else if rawInput == gc.KEY_BACKSPACE || c == gc.Char(127) {
//Delete Key
y, x := inputWin.CursorYX()
var del = byte('F')
if x != 0 {
inputWin.MoveDelChar(y, x-1)
del = inputBuffer[placer]
copy(inputBuffer[placer:len(inputBuffer)-1], inputBuffer[placer+1:])
inputBuffer = inputBuffer[0 : len(inputBuffer)-1]
placer--
if del != byte('\n') && NLlocate[y+scroll]._cursorX > x {
temp := newLine{NLlocate[y+scroll]._cursorX - 1, NLlocate[y+scroll]._placer - 1}
NLlocate[y+scroll] = temp
}
//debugLog.Println(inputBuffer)
} else if y != 0 { //when x==0 and y!=0
inputWin.Move(y-1, max_x-1)
inputWin.MoveDelChar(y-1, max_x-1)
del = inputBuffer[placer]
copy(inputBuffer[placer:len(inputBuffer)-1], inputBuffer[placer+1:])
inputBuffer = inputBuffer[0 : len(inputBuffer)-1]
//debugLog.Println(inputBuffer)
placer--
}
if del == byte('\n') {
inputWin.Erase()
inputWin.Print(string(inputBuffer))
inputWin.Move(y-1, NLlocate[y-1+scroll]._cursorX)
temp, check := NLlocate[y+scroll]
var temp_cursor = temp._cursorX
var temp_placer = temp._placer
if check && NLlocate[y-1+scroll]._cursorX+temp_cursor >= max_x {
_newLine := newLine{NLlocate[y-1+scroll]._cursorX + temp_cursor - max_x, NLlocate[y+scroll]._placer - 1}
NLlocate[y+scroll] = _newLine
delete(NLlocate, y-1)
} else if check { // check if there are any '\n' this line
var largest = -1 // if yes, select all '\n' and move
for i := range NLlocate { // placer by 1 and adjust cursor
if i >= y+scroll { // accordingly
if next_nl, ok := NLlocate[i+1]; ok {
new_nl := newLine{next_nl._cursorX, next_nl._placer - 1}
NLlocate[i] = new_nl
}
}
if i > largest {
largest = i
}
}
delete(NLlocate, largest) // delete last map entry
_newLine := newLine{NLlocate[y-1+scroll]._cursorX + temp_cursor, NLlocate[y-1+scroll]._placer + temp_placer - 1}
NLlocate[y-1+scroll] = _newLine
} else {
delete(NLlocate, y-1+scroll)
}
}
} else if c == gc.KEY_PAGEDOWN {
//debugLog.Println("HIT DOWN")
msgWin.Scroll(-10)
msgWin.Refresh()
inputWin.Refresh()
} else if c == gc.KEY_PAGEUP {
//debugLog.Println("HIT UP")
msgWin.Scroll(10)
msgWin.Refresh()
inputWin.Refresh()
} else if c == gc.KEY_LEFT {
y, x := inputWin.CursorYX()
if x != 0 {
inputWin.Move(y, x-1)
placer--
} else if y != 0 {
inputWin.Move(y-1, max_x-1)
placer--
}
if len(inputBuffer) > 0 && inputBuffer[placer+1] == byte('\n') {
inputWin.Move(y-1, NLlocate[y-1+scroll]._cursorX)
}
} else if c == gc.KEY_RIGHT {
y, x := inputWin.CursorYX()
placer++
if inputBuffer == nil || placer == len(inputBuffer) {
inputBuffer = append(inputBuffer, byte(' '))
}
if inputBuffer[placer] == byte('\n') || x >= max_x-1 {
inputWin.Move(y+1, 0)
} else {
inputWin.Move(y, x+1)
}
} else if c == gc.KEY_UP {
y, x := inputWin.CursorYX()
if y == 0 && placer == 0 {
continue
} else if y == 0 && scroll > 0 {
inputWin.Move(0, x)
inputWin.Scroll(-1)
scroll -= 1
if NLlocate[y-2+scroll]._placer != 0 {
inputWin.Erase()
inputWin.Print(string(inputBuffer[(NLlocate[y-2+scroll]._placer):]))
} else if placer-max_x-x > 0 {
inputWin.Erase()
inputWin.Print(string(inputBuffer[(placer - x - max_x):]))
} else {
inputWin.Erase()
inputWin.Print(string(inputBuffer))
}
}
if y != 0 {
inputWin.Move(y-1, x)
placer -= max_x
if placer < 0 {
placer = 0
}
}
if NLlocate[y-1+scroll]._placer != 0 {
if NLlocate[y-1+scroll]._cursorX < x {
placer = NLlocate[y-1+scroll]._placer
inputWin.Move(y-1, NLlocate[y-1+scroll]._cursorX)
} else {
placer = NLlocate[y-1+scroll]._placer - (NLlocate[y-1+scroll]._cursorX - x)
}
}
} else if c == gc.KEY_DOWN {
y, x := inputWin.CursorYX()
if y != max_y {
inputWin.Move(y+1, x)
if NLlocate[y+scroll]._placer == 0 {
placer += max_x
} else {
placer = NLlocate[y+scroll]._placer + x + 1
}
} else if y == max_y {
inputWin.Scroll(1)
scroll += 1
inputWin.Move(max_y-1, x)
if NLlocate[y+scroll]._placer == 0 {
placer += max_x
} else {
placer = NLlocate[y+scroll]._placer + x + 1
}
}
if placer >= len(inputBuffer) {
for i := len(inputBuffer); i < placer+1; i++ {
inputBuffer = append(inputBuffer, byte(' '))
}
}
} else if rawInput == gc.KEY_TAB {
y, x := inputWin.CursorYX()
gc.Cursor(0)
escapeHandler := contactsWindowNavigation(contactsMenuWin, contactMenu)
if escapeHandler == 1 {
return
}
gc.Cursor(1)
inputWin.Move(y, x)
} else if rawInput == gc.KEY_RETURN {
placer = -1
for i := range NLlocate {
delete(NLlocate, i)
}
sendMsg(inputWin, globalMsgWin)
} else if rawInput == gc.KEY_SRIGHT {
y, x := inputWin.CursorYX()
if inputBuffer == nil || placer == len(inputBuffer)-1 {
if y == max_y-1 {
scroll++
}
inputWin.Print("\n")
temp := newLine{x, placer}
NLlocate[y+scroll] = temp
placer++
inputBuffer = append(inputBuffer, byte('\n'))
} else {
inputWin.Erase()
inputBuffer = append(inputBuffer, byte('\n'))
copy(inputBuffer[placer+1:], inputBuffer[placer:])
inputBuffer[placer+1] = byte('\n')
inputWin.Print(string(inputBuffer))
temp := newLine{x, placer}
placer++
nextholder, check := NLlocate[y+1+scroll]
if check {
for i := range NLlocate {
if i == y+scroll {
_newLine := newLine{NLlocate[i]._cursorX + 1 - x, NLlocate[i]._placer + 1}
nextholder := NLlocate[i+1]
_ = nextholder
NLlocate[i+1] = _newLine
} else if i > y {
temp := NLlocate[i+1]
NLlocate[i+1] = nextholder
nextholder = temp
}
}
}
NLlocate[y+scroll] = temp
inputWin.Move(y+1, 0)
}
} else if rawInput == gc.KEY_SLEFT {
} else {
y, x := inputWin.CursorYX()
if inputBuffer == nil || placer == len(inputBuffer)-1 {
inputWin.Print(string(c))
inputBuffer = append(inputBuffer, byte(c))
} else {
inputWin.Erase()
inputBuffer = append(inputBuffer, byte(c))
copy(inputBuffer[placer+1:], inputBuffer[placer:])
inputBuffer[placer+1] = byte(c)
inputWin.Print(string(inputBuffer))
for i := range NLlocate {
if i > y+scroll {
tempLine := newLine{NLlocate[i]._cursorX, NLlocate[i]._placer + 1}
NLlocate[i] = tempLine
}
}
if NLlocate[y+scroll]._cursorX >= x {
if NLlocate[y+scroll]._cursorX == max_x {
copy(inputBuffer[NLlocate[y+scroll]._placer:len(inputBuffer)-1], inputBuffer[NLlocate[y+scroll]._placer+1:])
inputBuffer = inputBuffer[0 : len(inputBuffer)-1]
delete(NLlocate, y)
} else {
temp := newLine{NLlocate[y+scroll]._cursorX + 1, NLlocate[y+scroll]._placer + 1}
NLlocate[y+scroll] = temp
}
}
}
placer++
inputWin.Move(y, x+1)
}
}
}
