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/********************************************
* REVOLUTION 5.0 EXTENSION - KEN BURN
* @version: 1.0.0 (03.08.2015)
* @requires jquery.themepunch.revolution.js
* @author ThemePunch
*********************************************/
(function($) {
var _R = jQuery.fn.revolution;
///////////////////////////////////////////
// EXTENDED FUNCTIONS AVAILABLE GLOBAL //
///////////////////////////////////////////
jQuery.extend(true,_R, {
stopKenBurn : function(l) {
if (l.data('kbtl')!=undefined)
l.data('kbtl').pause();
},
startKenBurn : function(l,opt,prgs) {
var d = l.data(),
i = l.find('.defaultimg'),
s = i.data('lazyload') || i.data('src'),
i_a = d.owidth / d.oheight,
cw = opt.sliderType==="carousel" ? opt.carousel.slide_width : opt.ul.width(),
ch = opt.ul.height(),
c_a = cw / ch;
if (l.data('kbtl'))
l.data('kbtl').kill();
prgs = prgs || 0;
// NO KEN BURN IMAGE EXIST YET
if (l.find('.tp-kbimg').length==0) {
l.append('<div class="tp-kbimg-wrap" style="z-index:2;width:100%;height:100%;top:0px;left:0px;position:absolute;"><img class="tp-kbimg" src="'+s+'" style="position:absolute;" width="'+d.owidth+'" height="'+d.oheight+'"></div>');
l.data('kenburn',l.find('.tp-kbimg'));
}
var getKBSides = function(w,h,f,cw,ch,ho,vo) {
var tw = w * f,
th = h * f,
hd = Math.abs(cw-tw),
vd = Math.abs(ch-th),
s = new Object();
s.l = (0-ho)*hd;
s.r = s.l + tw;
s.t = (0-vo)*vd;
s.b = s.t + th;
s.h = ho;
s.v = vo;
return s;
},
getKBCorners = function(d,cw,ch,ofs,o) {
var p = d.bgposition.split(" ") || "center center",
ho = p[0] == "center" ? "50%" : p[0] == "left" || p [1] == "left" ? "0%" : p[0]=="right" || p[1] =="right" ? "100%" : p[0],
vo = p[1] == "center" ? "50%" : p[0] == "top" || p [1] == "top" ? "0%" : p[0]=="bottom" || p[1] =="bottom" ? "100%" : p[1];
ho = parseInt(ho,0)/100 || 0;
vo = parseInt(vo,0)/100 || 0;
var sides = new Object();
sides.start = getKBSides(o.start.width,o.start.height,o.start.scale,cw,ch,ho,vo);
sides.end = getKBSides(o.start.width,o.start.height,o.end.scale,cw,ch,ho,vo);
return sides;
},
kcalcL = function(cw,ch,d) {
var f=d.scalestart/100,
fe=d.scaleend/100,
ofs = d.oofsetstart != undefined ? d.offsetstart.split(" ") || [0,0] : [0,0],
ofe = d.offsetend != undefined ? d.offsetend.split(" ") || [0,0] : [0,0];
d.bgposition = d.bgposition == "center center" ? "50% 50%" : d.bgposition;
var o = new Object(),
sw = cw*f,
sh = sw/d.owidth * d.oheight,
ew = cw*fe,
eh = ew/d.owidth * d.oheight;
o.start = new Object();
o.starto = new Object();
o.end = new Object();
o.endo = new Object();
o.start.width = cw;
o.start.height = o.start.width / d.owidth * d.oheight;
if (o.start.height<ch) {
var newf = ch / o.start.height;
o.start.height = ch;
o.start.width = o.start.width*newf;
}
o.start.transformOrigin = d.bgposition;
o.start.scale = f;
o.end.scale = fe;
o.start.rotation = d.rotatestart+"deg";
o.end.rotation = d.rotateend+"deg";
// MAKE SURE THAT OFFSETS ARE NOT TOO HIGH
var c = getKBCorners(d,cw,ch,ofs,o);
ofs[0] = parseFloat(ofs[0]) + c.start.l;
ofe[0] = parseFloat(ofe[0]) + c.end.l;
ofs[1] = parseFloat(ofs[1]) + c.start.t;
ofe[1] = parseFloat(ofe[1]) + c.end.t;
var iws = c.start.r - c.start.l,
ihs = c.start.b - c.start.t,
iwe = c.end.r - c.end.l,
ihe = c.end.b - c.end.t;
ofs[0] = ofs[0]>0 ? 0 : iws + ofs[0] < cw ? cw-iws : ofs[0];
ofe[0] = ofe[0]>0 ? 0 : iwe + ofe[0] < cw ? cw-iwe : ofe[0];
ofs[1] = ofs[1]>0 ? 0 : ihs + ofs[1] < ch ? ch-ihs : ofs[1];
ofe[1] = ofe[1]>0 ? 0 : ihe + ofe[1] < ch ? ch-ihe : ofe[1];
o.starto.x = ofs[0]+"px";
o.starto.y = ofs[1]+"px";
o.endo.x = ofe[0]+"px";
o.endo.y = ofe[1]+"px";
o.end.ease = o.endo.ease = d.ease;
o.end.force3D = o.endo.force3D = true;
return o;
};
if (l.data('kbtl')!=undefined) {
l.data('kbtl').kill();
l.removeData('kbtl');
}
var k = l.data('kenburn'),
kw = k.parent(),
anim = kcalcL(cw,ch,d),
kbtl = new punchgs.TimelineLite();
kbtl.pause();
anim.start.transformOrigin = "0% 0%";
anim.starto.transformOrigin = "0% 0%";
kbtl.add(punchgs.TweenLite.fromTo(k,d.duration/1000,anim.start,anim.end),0);
kbtl.add(punchgs.TweenLite.fromTo(kw,d.duration/1000,anim.starto,anim.endo),0);
kbtl.progress(prgs);
kbtl.play();
l.data('kbtl',kbtl);
}
});
})(jQuery);