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var keys = (function(){
var keys = {}
keys.bind = function(){
cursor_input.addEventListener('keydown', function(e){
// console.log("keycode:", e.keyCode)
if (e.altKey) {
document.body.classList.add("dropper")
}
switch (e.keyCode) {
case 27: // esc
if (!selection.hidden && current_canvas === canvas){
selection.hide()
selection.show()
} else if (focused){
focused.blur()
}
return
}
if (window.focused && focused.raw_key) {
focused.raw_key(e)
return
}
switch (e.keyCode) {
case 219: // [
if (current_tool.name != "text") {
e.preventDefault()
brush.contract(1)
brush.modified = false
check_if_lost_focus()
}
break
case 221: // ]
if (current_tool.name != "text") {
e.preventDefault()
brush.expand(1)
brush.modified = false
}
break
case 8: // backspace
e.preventDefault()
if (current_canvas === canvas)
undo.new()
current_canvas.focus_add(-1, 0)
if (current_canvas === canvas)
undo.save_focused_lex()
focused.char = " "
focused.build()
return
case 13: // return
e.preventDefault()
current_canvas.focusLex(focused.y, focused.x+1)
return
case 38: // up
e.preventDefault()
current_canvas.focus_add(0, -1)
break
case 40: // down
e.preventDefault()
current_canvas.focus_add(0, 1)
break
case 37: // left
e.preventDefault()
current_canvas.focus_add(-1, 0)
break
case 39: // right
e.preventDefault()
current_canvas.focus_add(1, 0)
break
// use typical windows and os x shortcuts
// undo: ctrl-z or cmd-z
// redo: ctrl-y or shift-cmd-z
case 89: // y
if (!e.ctrlKey && !e.metaKey) break;
e.preventDefault();
undo.redo();
break
case 90: // z
if (!e.ctrlKey && !e.metaKey) break;
e.preventDefault();
if (e.shiftKey)
undo.redo();
else
undo.undo();
break
// default:
// if (focused) { focused.key(undefined, e.keyCode) }
}
})
cursor_input.addEventListener('input', function(e){
/*
if (! e.metaKey && ! e.ctrlKey && ! e.altKey) {
e.preventDefault()
}
*/
if (current_tool.name == "shader") {
cursor_input.value = ""
return
}
var char = cursor_input.value
cursor_input.value = ""
// console.log("input:", char)
if (current_tool.name != "text" && ! brush.modified) {
brush.char = char
if (char == " ") {
brush.bg = brush.fg
}
else if (brush.bg != fillColor) {
brush.fg = brush.bg
brush.bg = fillColor
}
brush.rebuild()
}
if (focused && char) {
var y = focused.y, x = focused.x
if (current_canvas === canvas){
undo.new()
undo.save_focused_lex()
}
var moving = focused.key(char, e.keyCode)
if ( ! moving || ! ('y' in focused && 'x' in focused) ) { return }
current_canvas.focus_add(1, 0)
}
})
cursor_input.addEventListener("keyup", function(e){
if (! e.altKey) {
document.body.classList.remove("dropper")
}
})
}
keys.int_key = function (f) {
return function (key, keyCode) {
var n = parseInt(key)
! isNaN(n) && f(n)
}
}
keys.arrow_key = function (fn) {
return function (e){
switch (e.keyCode) {
case 38: // up
e.preventDefault()
fn(1)
break
case 40: // down
e.preventDefault()
fn(-1)
break
}
}
}
keys.left_right_key = function (fn) {
return function (e){
switch (e.keyCode) {
case 39: // right
e.preventDefault()
fn(1)
break
case 38: // up
case 40: // down
e.preventDefault()
fn(0)
break
case 37: // left
e.preventDefault()
fn(-1)
break
}
}
}
keys.single_numeral_key = function (lex, fn) {
return keys.int_key(function(n, keyCode){
if (n == 0) n = 10
lex.blur()
fn(n)
})
}
keys.multi_numeral_key = function (lex, digits){
return keys.int_key(function(n, keyCode){
lex.read()
if (lex.char.length < digits) {
n = parseInt(lex.char) * 10 + n
}
lex.char = ""+n
lex.build()
})
}
keys.multi_numeral_blur = function (lex, fn){
return function(){
var n = parseInt(lex.char)
if (isNaN(n)) return
fn(n)
}
}
return keys
})()
function check_if_lost_focus() {
if (! window.focused || ! window.focused.span)
window.focused = canvas.aa[0][0]
}
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