update

Template/assets/js/plugins/scroll-elements.js

@@ -0,0 +1,191 @@
+$(function () {
+    if ($(window).width() > 991) {
+        ParallaxScroll.init();
+    }
+});
+
+var ParallaxScroll = {
+    /* PUBLIC VARIABLES */
+    showLogs: false,
+    round: 1000,
+
+    /* PUBLIC FUNCTIONS */
+    init: function () {
+        this._log("init");
+        if (this._inited) {
+            this._log("Already Inited");
+            this._inited = true;
+            return;
+        }
+        this._requestAnimationFrame = (function () {
+            return window.requestAnimationFrame ||
+                window.webkitRequestAnimationFrame ||
+                window.mozRequestAnimationFrame ||
+                window.oRequestAnimationFrame ||
+                window.msRequestAnimationFrame ||
+                function (/* function */ callback, /* DOMElement */ element) {
+                    window.setTimeout(callback, 1000 / 60);
+                };
+        })();
+        this._onScroll(true);
+    },
+
+    /* PRIVATE VARIABLES */
+    _inited: false,
+    _properties: ['x', 'y', 'z', 'rotateX', 'rotateY', 'rotateZ', 'scaleX', 'scaleY', 'scaleZ', 'scale'],
+    _requestAnimationFrame: null,
+
+    _log: function (message) {
+        if (this.showLogs) console.log("Parallax Scroll / " + message);
+    },
+    _onScroll: function (noSmooth) {
+        if ($(window).width() <= 991) return;
+
+        var scroll = $(document).scrollTop();
+        var windowHeight = $(window).height();
+        this._log("onScroll " + scroll);
+
+        $("[data-parallax]").each($.proxy(function (index, el) {
+            // existing logic unchanged...
+            var $el = $(el);
+            var properties = [];
+            var applyProperties = false;
+            var style = $el.data("style");
+            if (style == undefined) {
+                style = $el.attr("style") || "";
+                $el.data("style", style);
+            }
+            var datas = [$el.data("parallax")];
+            var iData;
+            for (iData = 2; ; iData++) {
+                if ($el.data("parallax" + iData)) {
+                    datas.push($el.data("parallax" + iData));
+                }
+                else {
+                    break;
+                }
+            }
+            var datasLength = datas.length;
+            for (iData = 0; iData < datasLength; iData++) {
+                var data = datas[iData];
+                var scrollFrom = data["from-scroll"];
+                if (scrollFrom == undefined) scrollFrom = Math.max(0, $(el).offset().top - windowHeight);
+                scrollFrom = scrollFrom | 0;
+                var scrollDistance = data["distance"];
+                var scrollTo = data["to-scroll"];
+                if (scrollDistance == undefined && scrollTo == undefined) scrollDistance = windowHeight;
+                scrollDistance = Math.max(scrollDistance | 0, 1);
+                var easing = data["easing"];
+                var easingReturn = data["easing-return"];
+                if (easing == undefined || !$.easing || !$.easing[easing]) easing = null;
+                if (easingReturn == undefined || !$.easing || !$.easing[easingReturn]) easingReturn = easing;
+                if (easing) {
+                    var totalTime = data["duration"];
+                    if (totalTime == undefined) totalTime = scrollDistance;
+                    totalTime = Math.max(totalTime | 0, 1);
+                    var totalTimeReturn = data["duration-return"];
+                    if (totalTimeReturn == undefined) totalTimeReturn = totalTime;
+                    scrollDistance = 1;
+                    var currentTime = $el.data("current-time");
+                    if (currentTime == undefined) currentTime = 0;
+                }
+                if (scrollTo == undefined) scrollTo = scrollFrom + scrollDistance;
+                scrollTo = scrollTo | 0;
+                var smoothness = data["smoothness"];
+                if (smoothness == undefined) smoothness = 30;
+                smoothness = smoothness | 0;
+                if (noSmooth || smoothness == 0) smoothness = 1;
+                smoothness = smoothness | 0;
+                var scrollCurrent = scroll;
+                scrollCurrent = Math.max(scrollCurrent, scrollFrom);
+                scrollCurrent = Math.min(scrollCurrent, scrollTo);
+                if (easing) {
+                    if ($el.data("sens") == undefined) $el.data("sens", "back");
+                    if (scrollCurrent > scrollFrom) {
+                        if ($el.data("sens") == "back") {
+                            currentTime = 1;
+                            $el.data("sens", "go");
+                        }
+                        else {
+                            currentTime++;
+                        }
+                    }
+                    if (scrollCurrent < scrollTo) {
+                        if ($el.data("sens") == "go") {
+                            currentTime = 1;
+                            $el.data("sens", "back");
+                        }
+                        else {
+                            currentTime++;
+                        }
+                    }
+                    if (noSmooth) currentTime = totalTime;
+                    $el.data("current-time", currentTime);
+                }
+                this._properties.map($.proxy(function (prop) {
+                    var defaultProp = 0;
+                    var to = data[prop];
+                    if (to == undefined) return;
+                    if (prop == "scale" || prop == "scaleX" || prop == "scaleY" || prop == "scaleZ") {
+                        defaultProp = 1;
+                    }
+                    else {
+                        to = to | 0;
+                    }
+                    var prev = $el.data("_" + prop);
+                    if (prev == undefined) prev = defaultProp;
+                    var next = ((to - defaultProp) * ((scrollCurrent - scrollFrom) / (scrollTo - scrollFrom))) + defaultProp;
+                    var val = prev + (next - prev) / smoothness;
+                    if (easing && currentTime > 0 && currentTime <= totalTime) {
+                        var from = defaultProp;
+                        if ($el.data("sens") == "back") {
+                            from = to;
+                            to = -to;
+                            easing = easingReturn;
+                            totalTime = totalTimeReturn;
+                        }
+                        val = $.easing[easing](null, currentTime, from, to, totalTime);
+                    }
+                    val = Math.ceil(val * this.round) / this.round;
+                    if (val == prev && next == to) val = to;
+                    if (!properties[prop]) properties[prop] = 0;
+                    properties[prop] += val;
+                    if (prev != properties[prop]) {
+                        $el.data("_" + prop, properties[prop]);
+                        applyProperties = true;
+                    }
+                }, this));
+            }
+            if (applyProperties) {
+                if (properties["z"] != undefined) {
+                    var perspective = data["perspective"];
+                    if (perspective == undefined) perspective = 800;
+                    var $parent = $el.parent();
+                    if (!$parent.data("style")) $parent.data("style", $parent.attr("style") || "");
+                    $parent.attr("style", "perspective:" + perspective + "px; -webkit-perspective:" + perspective + "px; " + $parent.data("style"));
+                }
+                if (properties["scaleX"] == undefined) properties["scaleX"] = 1;
+                if (properties["scaleY"] == undefined) properties["scaleY"] = 1;
+                if (properties["scaleZ"] == undefined) properties["scaleZ"] = 1;
+                if (properties["scale"] != undefined) {
+                    properties["scaleX"] *= properties["scale"];
+                    properties["scaleY"] *= properties["scale"];
+                    properties["scaleZ"] *= properties["scale"];
+                }
+                var translate3d = "translate3d(" + (properties["x"] ? properties["x"] : 0) + "px, " + (properties["y"] ? properties["y"] : 0) + "px, " + (properties["z"] ? properties["z"] : 0) + "px)";
+                var rotate3d = "rotateX(" + (properties["rotateX"] ? properties["rotateX"] : 0) + "deg) rotateY(" + (properties["rotateY"] ? properties["rotateY"] : 0) + "deg) rotateZ(" + (properties["rotateZ"] ? properties["rotateZ"] : 0) + "deg)";
+                var scale3d = "scaleX(" + properties["scaleX"] + ") scaleY(" + properties["scaleY"] + ") scaleZ(" + properties["scaleZ"] + ")";
+                var cssTransform = translate3d + " " + rotate3d + " " + scale3d + ";";
+                this._log(cssTransform);
+                $el.attr("style", "transform:" + cssTransform + " -webkit-transform:" + cssTransform + " " + style);
+            }
+        }, this));
+
+        if (window.requestAnimationFrame) {
+            window.requestAnimationFrame($.proxy(this._onScroll, this, false));
+        }
+        else {
+            this._requestAnimationFrame($.proxy(this._onScroll, this, false));
+        }
+    }
+};