!function not bundle friendly

[Romiko]

Hi,

Please can you update the code to use the brackets instead of !function, else it is not bundle friendly and throws exceptions.

so, rather have it as:

Here is the full code that now works. notice the semicolon at the end of the wrapped function and use of round brackets:

(function (window, document, undefined) { var prefixes = ['webkit', 'Moz', 'ms', 'O']; var animations = {}; var useCssAnimations; function createEl(tag, prop) { var el = document.createElement(tag || 'div'), n;

    for (n in prop)
        el[n] = prop[n];

    return el;
}

function ins(parent) {
    for (var i = 1, n = arguments.length; i < n; i++)
        parent.appendChild(arguments[i]);

    return parent;
}

var sheet = function () {
    var el = createEl('style', { type: 'text/css' });
    ins(document.getElementsByTagName('head')[0], el);
    return el.sheet || el.styleSheet;
}();

function addAnimation(alpha, trail, i, lines) {
    var name = ['opacity', trail, ~~(alpha * 100), i, lines].join('-');
    var start = 0.01 + i / lines * 100;
    var z = Math.max(1 - (1 - alpha) / trail * (100 - start), alpha);
    var prefix = useCssAnimations.substring(0, useCssAnimations.indexOf('Animation')).toLowerCase();
    var pre = prefix && '-' + prefix + '-' || '';

    if (!animations[name]) {
        sheet.insertRule(
            '@' + pre + 'keyframes ' + name + '{' +
                '0%{opacity:' + z + '}' +
                start + '%{opacity:' + alpha + '}' +
                (start + 0.01) + '%{opacity:1}' +
                (start + trail) % 100 + '%{opacity:' + alpha + '}' +
                '100%{opacity:' + z + '}' +
                '}', sheet.cssRules.length);

        animations[name] = 1;
    }
    return name;
}

function vendor(el, prop) {
    var s = el.style;
    var pp;
    var i;

    if (s[prop] !== undefined) return prop;
    prop = prop.charAt(0).toUpperCase() + prop.slice(1);
    for (i = 0; i < prefixes.length; i++) {
        pp = prefixes[i] + prop;
        if (s[pp] !== undefined)
            return pp;
    }
    return null;
}

function css(el, prop) {
    for (var n in prop)
        el.style[vendor(el, n) || n] = prop[n];

    return el;
}

function merge(obj) {
    for (var i = 1; i < arguments.length; i++) {
        var def = arguments[i];
        for (var n in def)
            if (obj[n] === undefined) obj[n] = def[n];
    }
    return obj;
}

function pos(el) {
    var o = { x: el.offsetLeft, y: el.offsetTop };
    while ((el = el.offsetParent))
        o.x += el.offsetLeft, o.y += el.offsetTop;

    return o;
}

var defaults = {
    lines: 12,            // The number of lines to draw
    length: 7,            // The length of each line
    width: 5,             // The line thickness
    radius: 10,           // The radius of the inner circle
    rotate: 0,            // Rotation offset
    corners: 1,           // Roundness (0..1)
    color: '#000',        // #rgb or #rrggbb
    speed: 1,             // Rounds per second
    trail: 100,           // Afterglow percentage
    opacity: 1 / 4,         // Opacity of the lines
    fps: 20,              // Frames per second when using setTimeout()
    zIndex: 2e9,          // Use a high z-index by default
    className: 'spinner', // CSS class to assign to the element
    top: 'auto',          // center vertically
    left: 'auto'          // center horizontally
};

spinner = function spinner(o) {
    if (!this.spin) return new spinner(o);
    this.opts = merge(o || {}, spinner.defaults, defaults);
    return null;
};
spinner.defaults = {};

merge(spinner.prototype, {
    spin: function (target) {
        this.stop();
        var self = this;
        var o = self.opts;
        var el = self.el = css(createEl(0, { className: o.className }), { position: 'relative', width: 0, zIndex: o.zIndex });
        var mid = o.radius + o.length + o.width;
        var ep;
        var tp;

        if (target) {
            target.insertBefore(el, target.firstChild || null);
            tp = pos(target);
            ep = pos(el);
            css(el, {
                left: (o.left == 'auto' ? tp.x - ep.x + (target.offsetWidth >> 1) : parseInt(o.left, 10) + mid) + 'px',
                top: (o.top == 'auto' ? tp.y - ep.y + (target.offsetHeight >> 1) : parseInt(o.top, 10) + mid) + 'px'
            });
        }

        el.setAttribute('aria-role', 'progressbar');
        self.lines(el, self.opts);

        if (!useCssAnimations) {
            var i = 0;
            var fps = o.fps;
            var f = fps / o.speed;
            var ostep = (1 - o.opacity) / (f * o.trail / 100);
            var astep = f / o.lines;

            (function anim() {
                i++;
                for (var s = o.lines; s; s--) {
                    var alpha = Math.max(1 - (i + s * astep) % f * ostep, o.opacity);
                    self.opacity(el, o.lines - s, alpha, o);
                }
                self.timeout = self.el && setTimeout(anim, ~~(1000 / fps));
            })();
        }
        return self;
    },

    stop: function () {
        var el = this.el;
        if (el) {
            clearTimeout(this.timeout);
            if (el.parentNode) el.parentNode.removeChild(el);
            this.el = undefined;
        }
        return this;
    },

    lines: function (el, o) {
        var i = 0, seg;

        function fill(color, shadow) {
            return css(createEl(), {
                position: 'absolute',
                width: (o.length + o.width) + 'px',
                height: o.width + 'px',
                background: color,
                boxShadow: shadow,
                transformOrigin: 'left',
                transform: 'rotate(' + ~~(360 / o.lines * i + o.rotate) + 'deg) translate(' + o.radius + 'px' + ',0)',
                borderRadius: (o.corners * o.width >> 1) + 'px'
            });
        }

        for (; i < o.lines; i++) {
            seg = css(createEl(), {
                position: 'absolute',
                top: 1 + ~(o.width / 2) + 'px',
                transform: o.hwaccel ? 'translate3d(0,0,0)' : '',
                opacity: o.opacity,
                animation: useCssAnimations && addAnimation(o.opacity, o.trail, i, o.lines) + ' ' + 1 / o.speed + 's linear infinite'
            });

            if (o.shadow) ins(seg, css(fill('#000', '0 0 4px ' + '#000'), { top: 2 + 'px' }));

            ins(el, ins(seg, fill(o.color, '0 0 1px rgba(0,0,0,.1)')));
        }
        return el;
    },

    opacity: function (el, i, val) {
        if (i < el.childNodes.length) el.childNodes[i].style.opacity = val;
    }

});

(function () {

    function vml(tag, attr) {
        return createEl('<' + tag + ' xmlns="urn:schemas-microsoft.com:vml" class="spin-vml">', attr);
    }

    var s = css(createEl('group'), { behavior: 'url(#default#VML)' });

    if (!vendor(s, 'transform') && s.adj) {
        sheet.addRule('.spin-vml', 'behavior:url(#default#VML)');
        spinner.prototype.lines = function (el, o) {
            var r = o.length + o.width, ss = 2 * r;

            function grp() {
                return css(
                    vml('group', {
                        coordsize: s + ' ' + s,
                        coordorigin: -r + ' ' + -r
                    }),
                    { width: ss, height: ss }
                );
            }

            var margin = -(o.width + o.length) * 2 + 'px', g = css(grp(), { position: 'absolute', top: margin, left: margin }), i;

            function seg(ii, dx, filter) {
                ins(g,
                    ins(css(grp(), { rotation: 360 / o.lines * ii + 'deg', left: ~~dx }),
                        ins(css(vml('roundrect', { arcsize: o.corners }), {
                            width: r,
                            height: o.width,
                            left: o.radius,
                            top: -o.width >> 1,
                            filter: filter
                        }),
                            vml('fill', { color: o.color, opacity: o.opacity }),
                            vml('stroke', { opacity: 0 })
                        )
                    )
                );
            }

            if (o.shadow)
                for (i = 1; i <= o.lines; i++)
                    seg(i, -2, 'progid:DXImageTransform.Microsoft.Blur(pixelradius=2,makeshadow=1,shadowopacity=.3)');

            for (i = 1; i <= o.lines; i++) seg(i);
            return ins(el, g);
        };

        spinner.prototype.opacity = function (el, i, val, o) {
            var c = el.firstChild;
            o = o.shadow && o.lines || 0;
            if (c && i + o < c.childNodes.length) {
                c = c.childNodes[i + o];
                c = c && c.firstChild;
                c = c && c.firstChild;
                if (c) c.opacity = val;
            }
        };
    } else
        useCssAnimations = vendor(s, 'animation');
})();

if (typeof window.define == 'function' && window.define.amd)
    window.define(function () { return spinner; });
else
    window.Spinner = spinner;

})(window, document);

Thanks for a great utility :)

[Romiko]

Fixed in ce1230c3c7710e2c763cabcbe5c5859c255e81f8