uikit demo theme ported to pelican (#385)

1 files changed, 417 insertions, 0 deletions

diff --git a/uikit/static/js/components/parallax.js b/uikit/static/js/components/parallax.js
new file mode 100644
index 0000000..3175027
--- /dev/null
+++ b/uikit/static/js/components/parallax.js
@@ -0,0 +1,417 @@
+/*! UIkit 2.21.0 | http://www.getuikit.com | (c) 2014 YOOtheme | MIT License */
+(function(addon) {
+
+    var component;
+
+    if (window.UIkit) {
+        component = addon(UIkit);
+    }
+
+    if (typeof define == "function" && define.amd) {
+        define("uikit-parallax", ["uikit"], function(){
+            return component || addon(UIkit);
+        });
+    }
+
+})(function(UI){
+
+    "use strict";
+
+    var parallaxes      = [],
+        supports3d      = false,
+        scrolltop       = 0,
+        wh              = window.innerHeight,
+        checkParallaxes = function() {
+
+            scrolltop = UI.$win.scrollTop();
+
+            window.requestAnimationFrame.apply(window, [function(){
+                for (var i=0; i < parallaxes.length; i++) {
+                    parallaxes[i].process();
+                }
+            }]);
+        };
+
+
+    UI.component('parallax', {
+
+        defaults: {
+            velocity : 0.5,
+            target   : false,
+            viewport : false,
+            media    : false
+        },
+
+        boot: function() {
+
+            supports3d = (function(){
+
+                var el = document.createElement('div'),
+                    has3d,
+                    transforms = {
+                        'WebkitTransform':'-webkit-transform',
+                        'MSTransform':'-ms-transform',
+                        'MozTransform':'-moz-transform',
+                        'Transform':'transform'
+                    };
+
+                // Add it to the body to get the computed style.
+                document.body.insertBefore(el, null);
+
+                for (var t in transforms) {
+                    if (el.style[t] !== undefined) {
+                        el.style[t] = "translate3d(1px,1px,1px)";
+                        has3d = window.getComputedStyle(el).getPropertyValue(transforms[t]);
+                    }
+                }
+
+                document.body.removeChild(el);
+
+                return (has3d !== undefined && has3d.length > 0 && has3d !== "none");
+            })();
+
+            // listen to scroll and resize
+            UI.$doc.on("scrolling.uk.document", checkParallaxes);
+            UI.$win.on("load resize orientationchange", UI.Utils.debounce(function(){
+                wh = window.innerHeight;
+                checkParallaxes();
+            }, 50));
+
+            // init code
+            UI.ready(function(context) {
+
+                UI.$('[data-uk-parallax]', context).each(function() {
+
+                    var parallax = UI.$(this);
+
+                    if (!parallax.data("parallax")) {
+                        var obj = UI.parallax(parallax, UI.Utils.options(parallax.attr("data-uk-parallax")));
+                    }
+                });
+            });
+        },
+
+        init: function() {
+
+            this.base     = this.options.target ? UI.$(this.options.target) : this.element;
+            this.props    = {};
+            this.velocity = (this.options.velocity || 1);
+
+            var reserved  = ['target','velocity','viewport','plugins','media'];
+
+            Object.keys(this.options).forEach(function(prop){
+
+                if (reserved.indexOf(prop) !== -1) {
+                    return;
+                }
+
+                var start, end, dir, diff, startend = String(this.options[prop]).split(',');
+
+                if (prop.match(/color/i)) {
+                    start = startend[1] ? startend[0] : this._getStartValue(prop),
+                    end   = startend[1] ? startend[1] : startend[0];
+
+                    if (!start) {
+                        start = 'rgba(255,255,255,0)';
+                    }
+
+                } else {
+                    start = parseFloat(startend[1] ? startend[0] : this._getStartValue(prop)),
+                    end   = parseFloat(startend[1] ? startend[1] : startend[0]);
+                    diff  = (start < end ? (end-start):(start-end));
+                    dir   = (start < end ? 1:-1);
+                }
+
+                this.props[prop] = { 'start': start, 'end': end, 'dir': dir, 'diff': diff };
+
+            }.bind(this));
+
+            parallaxes.push(this);
+        },
+
+        process: function() {
+
+            if (this.options.media) {
+
+                switch(typeof(this.options.media)) {
+                    case 'number':
+                        if (window.innerWidth < this.options.media) {
+                            return false;
+                        }
+                        break;
+                    case 'string':
+                        if (window.matchMedia && !window.matchMedia(this.options.media).matches) {
+                            return false;
+                        }
+                        break;
+                }
+            }
+
+            var percent = this.percentageInViewport();
+
+            if (this.options.viewport !== false) {
+                percent = (this.options.viewport === 0) ? 1 : percent / this.options.viewport;
+            }
+
+            this.update(percent);
+        },
+
+        percentageInViewport: function() {
+
+            var top     = this.base.offset().top,
+                height  = this.base.outerHeight(),
+                distance, percentage, percent;
+
+            if (top > (scrolltop + wh)) {
+                percent = 0;
+            } else if ((top + height) < scrolltop) {
+                percent = 1;
+            } else {
+
+                if ((top + height) < wh) {
+
+                    percent = (scrolltop < wh ? scrolltop : scrolltop - wh) / (top+height);
+
+                } else {
+
+                    distance   = (scrolltop + wh) - top;
+                    percentage = Math.round(distance / ((wh + height) / 100));
+                    percent    = percentage/100;
+                }
+            }
+
+            return percent;
+        },
+
+        update: function(percent) {
+
+            var css        = {'transform':''},
+                compercent = percent * (1 - (this.velocity - (this.velocity * percent))),
+                opts, val;
+
+            if (compercent < 0) compercent = 0;
+            if (compercent > 1) compercent = 1;
+
+            if (this._percent !== undefined && this._percent == compercent) {
+                return;
+            }
+
+            Object.keys(this.props).forEach(function(prop) {
+
+                opts = this.props[prop];
+
+                if (percent === 0) {
+                    val = opts.start;
+                } else if(percent === 1) {
+                    val = opts.end;
+                } else if(opts.diff !== undefined) {
+                    val = opts.start + (opts.diff * compercent * opts.dir);
+                }
+
+                if ((prop == 'bg' || prop == 'bgp') && !this._bgcover) {
+                    this._bgcover = initBgImageParallax(this, prop, opts);
+                }
+
+                switch(prop) {
+
+                    // transforms
+                    case "x":
+                        css.transform += supports3d ? ' translate3d('+val+'px, 0, 0)':' translateX('+val+'px)';
+                        break;
+                    case "xp":
+                        css.transform += supports3d ? ' translate3d('+val+'%, 0, 0)':' translateX('+val+'%)';
+                        break;
+                    case "y":
+                        css.transform += supports3d ? ' translate3d(0, '+val+'px, 0)':' translateY('+val+'px)';
+                        break;
+                    case "yp":
+                        css.transform += supports3d ? ' translate3d(0, '+val+'%, 0)':' translateY('+val+'%)';
+                        break;
+                    case "rotate":
+                        css.transform += ' rotate('+val+'deg)';
+                        break;
+                    case "scale":
+                        css.transform += ' scale('+val+')';
+                        break;
+
+                    // bg image
+                    case "bg":
+                        css['background-position'] = '50% '+val+'px';
+                        break;
+                    case "bgp":
+                        css['background-position'] = '50% '+val+'%';
+                        break;
+
+                    // color
+                    case "color":
+                    case "background-color":
+                    case "border-color":
+                        css[prop] = calcColor(opts.start, opts.end, compercent);
+                        break;
+
+                    default:
+                        css[prop] = val;
+                        break;
+                }
+
+            }.bind(this));
+
+            this.element.css(css);
+
+            this._percent = compercent;
+        },
+
+        _getStartValue: function(prop) {
+
+            var value = 0;
+
+            switch(prop) {
+                case 'scale':
+                    value = 1;
+                    break;
+                default:
+                    value = this.element.css(prop);
+            }
+
+            return (value || 0);
+        }
+
+    });
+
+
+    // helper
+
+    function initBgImageParallax(obj, prop, opts) {
+
+        var img = new Image(), url, loaded, element, size, check, ratio, width, height;
+
+        element = obj.element.css({'background-size': 'cover',  'background-repeat': 'no-repeat'});
+        url     = element.css('background-image').replace(/^url\(/g, '').replace(/\)$/g, '').replace(/("|')/g, '');
+        check   = function() {
+
+            var w = element.width(), h = element.height(), extra = (prop=='bg') ? opts.diff : (opts.diff/100) * h;
+
+            h += extra;
+            w += Math.ceil(extra * ratio);
+
+            // if element height < parent height (gap underneath)
+            if ((w / ratio) < h) {
+                width  = Math.ceil(h * ratio);
+                height = h;
+
+            // element width < parent width (gap to right)
+            } else {
+                width  = w;
+                height = Math.ceil(w / ratio);
+            }
+
+            obj.element.css({'background-size': (width+'px '+height+'px')});
+        };
+
+        img.onerror = function(){
+            // image url doesn't exist
+        };
+
+        img.onload = function(){
+            size  = {w:img.width, height:img.height};
+            ratio = img.width / img.height;
+
+            UI.$win.on("load resize orientationchange", UI.Utils.debounce(function(){
+                check();
+            }, 50));
+
+            check();
+        };
+
+        img.src = url;
+
+        return true;
+    }
+
+
+    // Some named colors to work with, added by Bradley Ayers
+    // From Interface by Stefan Petre
+    // http://interface.eyecon.ro/
+    var colors = {
+        'black': [0,0,0,1],
+        'blue': [0,0,255,1],
+        'brown': [165,42,42,1],
+        'cyan': [0,255,255,1],
+        'fuchsia': [255,0,255,1],
+        'gold': [255,215,0,1],
+        'green': [0,128,0,1],
+        'indigo': [75,0,130,1],
+        'khaki': [240,230,140,1],
+        'lime': [0,255,0,1],
+        'magenta': [255,0,255,1],
+        'maroon': [128,0,0,1],
+        'navy': [0,0,128,1],
+        'olive': [128,128,0,1],
+        'orange': [255,165,0,1],
+        'pink': [255,192,203,1],
+        'purple': [128,0,128,1],
+        'violet': [128,0,128,1],
+        'red': [255,0,0,1],
+        'silver': [192,192,192,1],
+        'white': [255,255,255,1],
+        'yellow': [255,255,0,1],
+        'transparent': [255,255,255,0]
+    };
+
+    function calcColor(start, end, pos) {
+
+        start = parseColor(start);
+        end   = parseColor(end);
+        pos   = pos || 0;
+
+        return calculateColor(start, end, pos);
+    }
+
+    /**!
+     * @preserve Color animation 1.6.0
+     * http://www.bitstorm.org/jquery/color-animation/
+     * Copyright 2011, 2013 Edwin Martin <edwin@bitstorm.org>
+     * Released under the MIT and GPL licenses.
+     */
+
+    // Calculate an in-between color. Returns "#aabbcc"-like string.
+    function calculateColor(begin, end, pos) {
+        var color = 'rgba('
+                + parseInt((begin[0] + pos * (end[0] - begin[0])), 10) + ','
+                + parseInt((begin[1] + pos * (end[1] - begin[1])), 10) + ','
+                + parseInt((begin[2] + pos * (end[2] - begin[2])), 10) + ','
+                + (begin && end ? parseFloat(begin[3] + pos * (end[3] - begin[3])) : 1);
+
+        color += ')';
+        return color;
+    }
+
+    // Parse an CSS-syntax color. Outputs an array [r, g, b]
+    function parseColor(color) {
+
+        var match, quadruplet;
+
+        // Match #aabbcc
+        if (match = /#([0-9a-fA-F]{2})([0-9a-fA-F]{2})([0-9a-fA-F]{2})/.exec(color)) {
+            quadruplet = [parseInt(match[1], 16), parseInt(match[2], 16), parseInt(match[3], 16), 1];
+
+            // Match #abc
+        } else if (match = /#([0-9a-fA-F])([0-9a-fA-F])([0-9a-fA-F])/.exec(color)) {
+            quadruplet = [parseInt(match[1], 16) * 17, parseInt(match[2], 16) * 17, parseInt(match[3], 16) * 17, 1];
+
+            // Match rgb(n, n, n)
+        } else if (match = /rgb\(\s*([0-9]{1,3})\s*,\s*([0-9]{1,3})\s*,\s*([0-9]{1,3})\s*\)/.exec(color)) {
+            quadruplet = [parseInt(match[1]), parseInt(match[2]), parseInt(match[3]), 1];
+
+        } else if (match = /rgba\(\s*([0-9]{1,3})\s*,\s*([0-9]{1,3})\s*,\s*([0-9]{1,3})\s*,\s*([0-9\.]*)\s*\)/.exec(color)) {
+            quadruplet = [parseInt(match[1], 10), parseInt(match[2], 10), parseInt(match[3], 10),parseFloat(match[4])];
+
+            // No browser returns rgb(n%, n%, n%), so little reason to support this format.
+        } else {
+            quadruplet = colors[color] || [255,255,255,0];
+        }
+        return quadruplet;
+    }
+
+    return UI.parallax;
+});