forked from dt5531/textsecure-client
/
input.go
327 lines (317 loc) · 12.5 KB
/
input.go
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// Copyright (c) 2014 by f4lk0r_
// Licensed under the GPLv3, see the License.txt file for details
package main
import(
//go ncurses library. Documentation here: https://godoc.org/code.google.com/p/goncurses
gc "github.com/rthornton128/goncurses"
)
var scroll = 0
type newLine struct {
_cursorX int
_placer int
}
// 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)
}
}
}
// contact Menu Window Navigation input handler
func contactsWindowNavigation(contactsMenuWin * gc.Window, contactMenu * gc.Menu) int {
var c gc.Char
var rawInput gc.Key
for {
gc.Update()
rawInput = contactsMenuWin.GetChar()
c = gc.Char(rawInput)
if rawInput == gc.KEY_TAB || rawInput == gc.KEY_RETURN {
return 0
} else if c == gc.Char(27) {
return 1
} else if c == gc.Char('j') || rawInput == gc.KEY_DOWN {
contactMenu.Driver(gc.REQ_DOWN)
changeContact(contactsMenuWin,contactMenu)
} else if c == gc.Char('k') || rawInput == gc.KEY_UP {
contactMenu.Driver(gc.REQ_UP)
changeContact(contactsMenuWin,contactMenu)
} else if c == gc.Char('g') {
contactMenu.Driver(gc.REQ_FIRST)
changeContact(contactsMenuWin,contactMenu)
} else if c == gc.Char('G') {
contactMenu.Driver(gc.REQ_LAST)
changeContact(contactsMenuWin,contactMenu)
} else {
continue
}
}
}
// Gets password from input
func getPass() string {
gc.Echo(false)
stdscr := gc.StdScr()
var returnString []byte
x := 0
var c gc.Char
var rawInput gc.Key
for {
rawInput = stdscr.GetChar()
c = gc.Char(rawInput)
if rawInput == gc.KEY_BACKSPACE || c == gc.Char(127) {
if x != 0 {
returnString = returnString[0:len(returnString)-1]
x--
} else {
continue
}
} else if rawInput == gc.KEY_RETURN {
if x !=0 {
return string(returnString)
}
} else if c > 31 && c < 127 {
returnString = append(returnString,byte(c))
x++
} else {
continue
}
}
}