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/*
usage:
base.mouse = new mouse({
el: document.querySelector("#map"),
down: function(e, cursor){
// do something with val
// cursor.x.a
// cursor.y.a
},
move: function(e, cursor, delta){
// delta.a (x)
// delta.b (y)
},
up: function(e, cursor, new_cursor){
// cursor.x.a
// cursor.y.a
},
})
*/
function mouse (opt) {
var base = this
opt = defaults(opt, {
el: null,
down: null,
move: null,
drag: null,
enter: null,
up: null,
rightclick: null,
propagate: false,
locked: false,
use_offset: true,
val: 0,
})
base.down = false
base.creating = false
base.dragging = false
base.cursor = new Rect(0,0,0,0)
base.tube = new Tube ()
opt.down && base.tube.on("down", opt.down)
opt.move && base.tube.on("move", opt.move)
opt.drag && base.tube.on("drag", opt.drag)
opt.enter && base.tube.on("enter", opt.enter)
opt.up && base.tube.on("up", opt.up)
opt.rightclick && base.tube.on("rightclick", opt.rightclick)
var offset = (opt.use_offset && opt.el) ? opt.el.getBoundingClientRect() : null
base.init = function (){
base.bind()
}
base.on = function(){
base.tube.on.apply(base.tube, arguments)
}
base.off = function(){
base.tube.off.apply(base.tube, arguments)
}
base.bind = function(){
if (opt.el) {
opt.el.addEventListener("mousedown", base.mousedown)
opt.el.addEventListener("contextmenu", base.contextmenu)
}
window.addEventListener("mousemove", base.mousemove)
window.addEventListener("mouseup", base.mouseup)
}
base.bind_el = function(el){
el.addEventListener("mousedown", base.mousedown)
}
base.unbind_el = function(el){
el.removeEventListener("mousedown", base.mousedown)
}
function positionFromMouse(e) {
if (offset) {
return new vec2(offset.left - e.pageX, e.pageY - offset.top)
}
else {
return new vec2(e.pageX, e.pageY)
}
}
base.mousedown = function(e){
e.stopPropagation()
if (opt.use_offset) {
offset = this.getBoundingClientRect()
}
var pos = positionFromMouse(e)
var x = pos.a, y = pos.b
base.cursor = new Rect (x,y, x,y)
base.down = true
base.tube("down", e, base.cursor)
}
base.mousemove = function(e){
e.stopPropagation()
if (opt.use_offset && ! offset) return
var pos = positionFromMouse(e)
if (e.shiftKey) {
pos.quantize(10)
}
var x = pos.a, y = pos.b
if (base.down) {
base.cursor.x.b = x
base.cursor.y.b = y
base.tube("drag", e, base.cursor)
}
else {
base.cursor.x.a = base.cursor.x.b = x
base.cursor.y.a = base.cursor.y.b = y
base.tube("move", e, base.cursor)
}
}
base.mouseenter = function(e, el){
if (! base.down) return
if (opt.use_offset && ! offset) return
base.tube("enter", e, el, base.cursor)
}
base.mouseup = function(e){
var pos, new_cursor
if (base.down) {
e.stopPropagation()
base.down = false
pos = positionFromMouse(e)
new_cursor = new Rect (pos.a, pos.b)
base.tube("up", e, base.cursor, new_cursor)
base.cursor = new_cursor
}
}
base.contextmenu = function(e){
e.preventDefault()
base.tube("rightclick", e, base.cursor)
}
base.init()
}
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