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@@ -0,0 +1,2191 @@
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+(function (global, factory) {
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+ typeof exports === 'object' && typeof module !== 'undefined' ? module.exports = factory() :
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+ typeof define === 'function' && define.amd ? define(factory) :
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+ (global = global || self, global.Shuffle = factory());
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+}(this, function () {
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+ 'use strict';
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+
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+ function _classCallCheck(instance, Constructor) {
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+ if (!(instance instanceof Constructor)) {
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+ throw new TypeError("Cannot call a class as a function");
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+ }
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+ }
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+
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+ function _defineProperties(target, props) {
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+ for (var i = 0; i < props.length; i++) {
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+ var descriptor = props[i];
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+ descriptor.enumerable = descriptor.enumerable || false;
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+ descriptor.configurable = true;
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+ if ("value" in descriptor) descriptor.writable = true;
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+ Object.defineProperty(target, descriptor.key, descriptor);
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+ }
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+ }
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+
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+ function _createClass(Constructor, protoProps, staticProps) {
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+ if (protoProps) _defineProperties(Constructor.prototype, protoProps);
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+ if (staticProps) _defineProperties(Constructor, staticProps);
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+ return Constructor;
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+ }
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+
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+ function _inherits(subClass, superClass) {
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+ if (typeof superClass !== "function" && superClass !== null) {
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+ throw new TypeError("Super expression must either be null or a function");
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+ }
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+
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+ subClass.prototype = Object.create(superClass && superClass.prototype, {
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+ constructor: {
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+ value: subClass,
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+ writable: true,
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+ configurable: true
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+ }
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+ });
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+ if (superClass) _setPrototypeOf(subClass, superClass);
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+ }
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+
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+ function _getPrototypeOf(o) {
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+ _getPrototypeOf = Object.setPrototypeOf ? Object.getPrototypeOf : function _getPrototypeOf(o) {
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+ return o.__proto__ || Object.getPrototypeOf(o);
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+ };
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+ return _getPrototypeOf(o);
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+ }
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+
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+ function _setPrototypeOf(o, p) {
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+ _setPrototypeOf = Object.setPrototypeOf || function _setPrototypeOf(o, p) {
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+ o.__proto__ = p;
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+ return o;
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+ };
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+
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+ return _setPrototypeOf(o, p);
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+ }
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+
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+ function _assertThisInitialized(self) {
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+ if (self === void 0) {
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+ throw new ReferenceError("this hasn't been initialised - super() hasn't been called");
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+ }
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+
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+ return self;
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+ }
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+
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+ function _possibleConstructorReturn(self, call) {
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+ if (call && (typeof call === "object" || typeof call === "function")) {
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+ return call;
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+ }
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+
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+ return _assertThisInitialized(self);
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+ }
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+
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+ function E() {
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+ // Keep this empty so it's easier to inherit from
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+ // (via https://github.com/lipsmack from https://github.com/scottcorgan/tiny-emitter/issues/3)
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+ }
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+
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+ E.prototype = {
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+ on: function (name, callback, ctx) {
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+ var e = this.e || (this.e = {});
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+
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+ (e[name] || (e[name] = [])).push({
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+ fn: callback,
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+ ctx: ctx
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+ });
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+
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+ return this;
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+ },
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+
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+ once: function (name, callback, ctx) {
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+ var self = this;
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+ function listener() {
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+ self.off(name, listener);
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+ callback.apply(ctx, arguments);
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+ }
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+ listener._ = callback;
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+ return this.on(name, listener, ctx);
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+ },
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+
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+ emit: function (name) {
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+ var data = [].slice.call(arguments, 1);
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+ var evtArr = ((this.e || (this.e = {}))[name] || []).slice();
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+ var i = 0;
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+ var len = evtArr.length;
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+
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+ for (i; i < len; i++) {
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+ evtArr[i].fn.apply(evtArr[i].ctx, data);
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+ }
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+
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+ return this;
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+ },
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+
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+ off: function (name, callback) {
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+ var e = this.e || (this.e = {});
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+ var evts = e[name];
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+ var liveEvents = [];
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+
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+ if (evts && callback) {
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+ for (var i = 0, len = evts.length; i < len; i++) {
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+ if (evts[i].fn !== callback && evts[i].fn._ !== callback)
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+ liveEvents.push(evts[i]);
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+ }
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+ }
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+
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+ // Remove event from queue to prevent memory leak
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+ // Suggested by https://github.com/lazd
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+ // Ref: https://github.com/scottcorgan/tiny-emitter/commit/c6ebfaa9bc973b33d110a84a307742b7cf94c953#commitcomment-5024910
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+
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+ (liveEvents.length)
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+ ? e[name] = liveEvents
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+ : delete e[name];
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+
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+ return this;
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+ }
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+ };
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+
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+ var tinyEmitter = E;
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+ var TinyEmitter = E;
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+ tinyEmitter.TinyEmitter = TinyEmitter;
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+
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+ var proto = typeof Element !== 'undefined' ? Element.prototype : {};
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+ var vendor = proto.matches
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+ || proto.matchesSelector
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+ || proto.webkitMatchesSelector
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+ || proto.mozMatchesSelector
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+ || proto.msMatchesSelector
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+ || proto.oMatchesSelector;
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+
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+ var matchesSelector = match;
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+
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+ /**
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+ * Match `el` to `selector`.
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+ *
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+ * @param {Element} el
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+ * @param {String} selector
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+ * @return {Boolean}
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+ * @api public
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+ */
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+
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+ function match(el, selector) {
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+ if (!el || el.nodeType !== 1) return false;
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+ if (vendor) return vendor.call(el, selector);
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+ var nodes = el.parentNode.querySelectorAll(selector);
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+ for (var i = 0; i < nodes.length; i++) {
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+ if (nodes[i] == el) return true;
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+ }
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+ return false;
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+ }
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+
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+ var throttleit = throttle;
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+
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+ /**
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+ * Returns a new function that, when invoked, invokes `func` at most once per `wait` milliseconds.
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+ *
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+ * @param {Function} func Function to wrap.
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+ * @param {Number} wait Number of milliseconds that must elapse between `func` invocations.
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+ * @return {Function} A new function that wraps the `func` function passed in.
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+ */
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+
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+ function throttle(func, wait) {
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+ var ctx, args, rtn, timeoutID; // caching
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+ var last = 0;
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+
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+ return function throttled() {
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+ ctx = this;
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+ args = arguments;
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+ var delta = new Date() - last;
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+ if (!timeoutID)
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+ if (delta >= wait) call();
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+ else timeoutID = setTimeout(call, wait - delta);
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+ return rtn;
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+ };
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+
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+ function call() {
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+ timeoutID = 0;
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+ last = +new Date();
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+ rtn = func.apply(ctx, args);
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+ ctx = null;
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+ args = null;
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+ }
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+ }
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+
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+ var arrayParallel = function parallel(fns, context, callback) {
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+ if (!callback) {
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+ if (typeof context === 'function') {
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+ callback = context;
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+ context = null;
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+ } else {
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+ callback = noop;
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+ }
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+ }
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+
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+ var pending = fns && fns.length;
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+ if (!pending) return callback(null, []);
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+
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+ var finished = false;
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+ var results = new Array(pending);
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+
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+ fns.forEach(context ? function (fn, i) {
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+ fn.call(context, maybeDone(i));
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+ } : function (fn, i) {
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+ fn(maybeDone(i));
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+ });
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+
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+ function maybeDone(i) {
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+ return function (err, result) {
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+ if (finished) return;
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+
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+ if (err) {
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+ callback(err, results);
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+ finished = true;
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+ return
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+ }
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+
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+ results[i] = result;
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+
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+ if (!--pending) callback(null, results);
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+ }
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+ }
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+ };
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+
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+ function noop() { }
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+
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+ /**
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+ * Always returns a numeric value, given a value. Logic from jQuery's `isNumeric`.
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+ * @param {*} value Possibly numeric value.
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+ * @return {number} `value` or zero if `value` isn't numeric.
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+ */
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+ function getNumber(value) {
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+ return parseFloat(value) || 0;
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+ }
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+
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+ var Point =
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+ /*#__PURE__*/
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+ function () {
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+ /**
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+ * Represents a coordinate pair.
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+ * @param {number} [x=0] X.
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+ * @param {number} [y=0] Y.
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+ */
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+ function Point(x, y) {
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+ _classCallCheck(this, Point);
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+
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+ this.x = getNumber(x);
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+ this.y = getNumber(y);
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+ }
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+ /**
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+ * Whether two points are equal.
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+ * @param {Point} a Point A.
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+ * @param {Point} b Point B.
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+ * @return {boolean}
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+ */
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+
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+
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+ _createClass(Point, null, [{
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+ key: "equals",
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+ value: function equals(a, b) {
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+ return a.x === b.x && a.y === b.y;
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+ }
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+ }]);
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+
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+ return Point;
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+ }();
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+
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+ var Rect =
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+ /*#__PURE__*/
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+ function () {
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+ /**
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+ * Class for representing rectangular regions.
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+ * https://github.com/google/closure-library/blob/master/closure/goog/math/rect.js
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+ * @param {number} x Left.
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+ * @param {number} y Top.
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+ * @param {number} w Width.
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+ * @param {number} h Height.
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+ * @param {number} id Identifier
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+ * @constructor
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+ */
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+ function Rect(x, y, w, h, id) {
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+ _classCallCheck(this, Rect);
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+
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+ this.id = id;
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+ /** @type {number} */
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+
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+ this.left = x;
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+ /** @type {number} */
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+
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+ this.top = y;
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+ /** @type {number} */
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+
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+ this.width = w;
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+ /** @type {number} */
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+
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+ this.height = h;
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+ }
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+ /**
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+ * Returns whether two rectangles intersect.
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+ * @param {Rect} a A Rectangle.
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+ * @param {Rect} b A Rectangle.
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+ * @return {boolean} Whether a and b intersect.
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+ */
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+
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+
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+ _createClass(Rect, null, [{
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+ key: "intersects",
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+ value: function intersects(a, b) {
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+ return a.left < b.left + b.width && b.left < a.left + a.width && a.top < b.top + b.height && b.top < a.top + a.height;
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+ }
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+ }]);
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+
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+ return Rect;
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+ }();
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+
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+ var Classes = {
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+ BASE: 'shuffle',
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+ SHUFFLE_ITEM: 'shuffle-item',
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+ VISIBLE: 'shuffle-item--visible',
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+ HIDDEN: 'shuffle-item--hidden'
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+ };
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+
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+ var id = 0;
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+
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+ var ShuffleItem =
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+ /*#__PURE__*/
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+ function () {
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+ function ShuffleItem(element) {
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+ _classCallCheck(this, ShuffleItem);
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+
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+ id += 1;
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+ this.id = id;
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+ this.element = element;
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+ /**
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+ * Used to separate items for layout and shrink.
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+ */
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+
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+ this.isVisible = true;
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+ /**
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+ * Used to determine if a transition will happen. By the time the _layout
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+ * and _shrink methods get the ShuffleItem instances, the `isVisible` value
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+ * has already been changed by the separation methods, so this property is
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+ * needed to know if the item was visible/hidden before the shrink/layout.
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+ */
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+
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+ this.isHidden = false;
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+ }
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+
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+ _createClass(ShuffleItem, [{
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+ key: "show",
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+ value: function show() {
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+ this.isVisible = true;
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+ this.element.classList.remove(Classes.HIDDEN);
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+ this.element.classList.add(Classes.VISIBLE);
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+ this.element.removeAttribute('aria-hidden');
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+ }
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+ }, {
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+ key: "hide",
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+ value: function hide() {
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+ this.isVisible = false;
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+ this.element.classList.remove(Classes.VISIBLE);
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+ this.element.classList.add(Classes.HIDDEN);
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+ this.element.setAttribute('aria-hidden', true);
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+ }
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+ }, {
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+ key: "init",
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+ value: function init() {
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+ this.addClasses([Classes.SHUFFLE_ITEM, Classes.VISIBLE]);
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+ this.applyCss(ShuffleItem.Css.INITIAL);
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+ this.scale = ShuffleItem.Scale.VISIBLE;
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+ this.point = new Point();
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+ }
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+ }, {
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+ key: "addClasses",
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+ value: function addClasses(classes) {
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+ var _this = this;
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+
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+ classes.forEach(function (className) {
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+ _this.element.classList.add(className);
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+ });
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+ }
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+ }, {
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+ key: "removeClasses",
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+ value: function removeClasses(classes) {
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+ var _this2 = this;
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+
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+ classes.forEach(function (className) {
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+ _this2.element.classList.remove(className);
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+ });
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+ }
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+ }, {
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+ key: "applyCss",
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+ value: function applyCss(obj) {
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+ var _this3 = this;
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+
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+ Object.keys(obj).forEach(function (key) {
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+ _this3.element.style[key] = obj[key];
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+ });
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+ }
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+ }, {
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+ key: "dispose",
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+ value: function dispose() {
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+ this.removeClasses([Classes.HIDDEN, Classes.VISIBLE, Classes.SHUFFLE_ITEM]);
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+ this.element.removeAttribute('style');
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+ this.element = null;
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+ }
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+ }]);
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+
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+ return ShuffleItem;
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+ }();
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+
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+ ShuffleItem.Css = {
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+ INITIAL: {
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+ position: 'absolute',
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+ top: 0,
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+ left: 0,
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+ visibility: 'visible',
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+ willChange: 'transform'
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+ },
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+ VISIBLE: {
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+ before: {
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+ opacity: 1,
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+ visibility: 'visible'
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+ },
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+ after: {
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|
|
+ transitionDelay: ''
|
|
|
+ }
|
|
|
+ },
|
|
|
+ HIDDEN: {
|
|
|
+ before: {
|
|
|
+ opacity: 0
|
|
|
+ },
|
|
|
+ after: {
|
|
|
+ visibility: 'hidden',
|
|
|
+ transitionDelay: ''
|
|
|
+ }
|
|
|
+ }
|
|
|
+ };
|
|
|
+ ShuffleItem.Scale = {
|
|
|
+ VISIBLE: 1,
|
|
|
+ HIDDEN: 0.001
|
|
|
+ };
|
|
|
+
|
|
|
+ var value = null;
|
|
|
+ var testComputedSize = (function () {
|
|
|
+ if (value !== null) {
|
|
|
+ return value;
|
|
|
+ }
|
|
|
+
|
|
|
+ var element = document.body || document.documentElement;
|
|
|
+ var e = document.createElement('div');
|
|
|
+ e.style.cssText = 'width:10px;padding:2px;box-sizing:border-box;';
|
|
|
+ element.appendChild(e);
|
|
|
+ value = window.getComputedStyle(e, null).width === '10px';
|
|
|
+ element.removeChild(e);
|
|
|
+ return value;
|
|
|
+ });
|
|
|
+
|
|
|
+ /**
|
|
|
+ * Retrieve the computed style for an element, parsed as a float.
|
|
|
+ * @param {Element} element Element to get style for.
|
|
|
+ * @param {string} style Style property.
|
|
|
+ * @param {CSSStyleDeclaration} [styles] Optionally include clean styles to
|
|
|
+ * use instead of asking for them again.
|
|
|
+ * @return {number} The parsed computed value or zero if that fails because IE
|
|
|
+ * will return 'auto' when the element doesn't have margins instead of
|
|
|
+ * the computed style.
|
|
|
+ */
|
|
|
+
|
|
|
+ function getNumberStyle(element, style) {
|
|
|
+ var styles = arguments.length > 2 && arguments[2] !== undefined ? arguments[2] : window.getComputedStyle(element, null);
|
|
|
+ var value = getNumber(styles[style]); // Support IE<=11 and W3C spec.
|
|
|
+
|
|
|
+ if (!testComputedSize() && style === 'width') {
|
|
|
+ value += getNumber(styles.paddingLeft) + getNumber(styles.paddingRight) + getNumber(styles.borderLeftWidth) + getNumber(styles.borderRightWidth);
|
|
|
+ } else if (!testComputedSize() && style === 'height') {
|
|
|
+ value += getNumber(styles.paddingTop) + getNumber(styles.paddingBottom) + getNumber(styles.borderTopWidth) + getNumber(styles.borderBottomWidth);
|
|
|
+ }
|
|
|
+
|
|
|
+ return value;
|
|
|
+ }
|
|
|
+
|
|
|
+ /**
|
|
|
+ * Fisher-Yates shuffle.
|
|
|
+ * http://stackoverflow.com/a/962890/373422
|
|
|
+ * https://bost.ocks.org/mike/shuffle/
|
|
|
+ * @param {Array} array Array to shuffle.
|
|
|
+ * @return {Array} Randomly sorted array.
|
|
|
+ */
|
|
|
+ function randomize(array) {
|
|
|
+ var n = array.length;
|
|
|
+
|
|
|
+ while (n) {
|
|
|
+ n -= 1;
|
|
|
+ var i = Math.floor(Math.random() * (n + 1));
|
|
|
+ var temp = array[i];
|
|
|
+ array[i] = array[n];
|
|
|
+ array[n] = temp;
|
|
|
+ }
|
|
|
+
|
|
|
+ return array;
|
|
|
+ }
|
|
|
+
|
|
|
+ var defaults = {
|
|
|
+ // Use array.reverse() to reverse the results
|
|
|
+ reverse: false,
|
|
|
+ // Sorting function
|
|
|
+ by: null,
|
|
|
+ // Custom sort function
|
|
|
+ compare: null,
|
|
|
+ // If true, this will skip the sorting and return a randomized order in the array
|
|
|
+ randomize: false,
|
|
|
+ // Determines which property of each item in the array is passed to the
|
|
|
+ // sorting method.
|
|
|
+ key: 'element'
|
|
|
+ };
|
|
|
+ /**
|
|
|
+ * You can return `undefined` from the `by` function to revert to DOM order.
|
|
|
+ * @param {Array<T>} arr Array to sort.
|
|
|
+ * @param {SortOptions} options Sorting options.
|
|
|
+ * @return {Array<T>}
|
|
|
+ */
|
|
|
+
|
|
|
+ function sorter(arr, options) {
|
|
|
+ var opts = Object.assign({}, defaults, options);
|
|
|
+ var original = Array.from(arr);
|
|
|
+ var revert = false;
|
|
|
+
|
|
|
+ if (!arr.length) {
|
|
|
+ return [];
|
|
|
+ }
|
|
|
+
|
|
|
+ if (opts.randomize) {
|
|
|
+ return randomize(arr);
|
|
|
+ } // Sort the elements by the opts.by function.
|
|
|
+ // If we don't have opts.by, default to DOM order
|
|
|
+
|
|
|
+
|
|
|
+ if (typeof opts.by === 'function') {
|
|
|
+ arr.sort(function (a, b) {
|
|
|
+ // Exit early if we already know we want to revert
|
|
|
+ if (revert) {
|
|
|
+ return 0;
|
|
|
+ }
|
|
|
+
|
|
|
+ var valA = opts.by(a[opts.key]);
|
|
|
+ var valB = opts.by(b[opts.key]); // If both values are undefined, use the DOM order
|
|
|
+
|
|
|
+ if (valA === undefined && valB === undefined) {
|
|
|
+ revert = true;
|
|
|
+ return 0;
|
|
|
+ }
|
|
|
+
|
|
|
+ if (valA < valB || valA === 'sortFirst' || valB === 'sortLast') {
|
|
|
+ return -1;
|
|
|
+ }
|
|
|
+
|
|
|
+ if (valA > valB || valA === 'sortLast' || valB === 'sortFirst') {
|
|
|
+ return 1;
|
|
|
+ }
|
|
|
+
|
|
|
+ return 0;
|
|
|
+ });
|
|
|
+ } else if (typeof opts.compare === 'function') {
|
|
|
+ arr.sort(opts.compare);
|
|
|
+ } // Revert to the original array if necessary
|
|
|
+
|
|
|
+
|
|
|
+ if (revert) {
|
|
|
+ return original;
|
|
|
+ }
|
|
|
+
|
|
|
+ if (opts.reverse) {
|
|
|
+ arr.reverse();
|
|
|
+ }
|
|
|
+
|
|
|
+ return arr;
|
|
|
+ }
|
|
|
+
|
|
|
+ var transitions = {};
|
|
|
+ var eventName = 'transitionend';
|
|
|
+ var count = 0;
|
|
|
+
|
|
|
+ function uniqueId() {
|
|
|
+ count += 1;
|
|
|
+ return eventName + count;
|
|
|
+ }
|
|
|
+
|
|
|
+ function cancelTransitionEnd(id) {
|
|
|
+ if (transitions[id]) {
|
|
|
+ transitions[id].element.removeEventListener(eventName, transitions[id].listener);
|
|
|
+ transitions[id] = null;
|
|
|
+ return true;
|
|
|
+ }
|
|
|
+
|
|
|
+ return false;
|
|
|
+ }
|
|
|
+ function onTransitionEnd(element, callback) {
|
|
|
+ var id = uniqueId();
|
|
|
+
|
|
|
+ var listener = function listener(evt) {
|
|
|
+ if (evt.currentTarget === evt.target) {
|
|
|
+ cancelTransitionEnd(id);
|
|
|
+ callback(evt);
|
|
|
+ }
|
|
|
+ };
|
|
|
+
|
|
|
+ element.addEventListener(eventName, listener);
|
|
|
+ transitions[id] = {
|
|
|
+ element: element,
|
|
|
+ listener: listener
|
|
|
+ };
|
|
|
+ return id;
|
|
|
+ }
|
|
|
+
|
|
|
+ function arrayMax(array) {
|
|
|
+ return Math.max.apply(Math, array); // eslint-disable-line prefer-spread
|
|
|
+ }
|
|
|
+
|
|
|
+ function arrayMin(array) {
|
|
|
+ return Math.min.apply(Math, array); // eslint-disable-line prefer-spread
|
|
|
+ }
|
|
|
+
|
|
|
+ /**
|
|
|
+ * Determine the number of columns an items spans.
|
|
|
+ * @param {number} itemWidth Width of the item.
|
|
|
+ * @param {number} columnWidth Width of the column (includes gutter).
|
|
|
+ * @param {number} columns Total number of columns
|
|
|
+ * @param {number} threshold A buffer value for the size of the column to fit.
|
|
|
+ * @return {number}
|
|
|
+ */
|
|
|
+
|
|
|
+ function getColumnSpan(itemWidth, columnWidth, columns, threshold) {
|
|
|
+ var columnSpan = itemWidth / columnWidth; // If the difference between the rounded column span number and the
|
|
|
+ // calculated column span number is really small, round the number to
|
|
|
+ // make it fit.
|
|
|
+
|
|
|
+ if (Math.abs(Math.round(columnSpan) - columnSpan) < threshold) {
|
|
|
+ // e.g. columnSpan = 4.0089945390298745
|
|
|
+ columnSpan = Math.round(columnSpan);
|
|
|
+ } // Ensure the column span is not more than the amount of columns in the whole layout.
|
|
|
+
|
|
|
+
|
|
|
+ return Math.min(Math.ceil(columnSpan), columns);
|
|
|
+ }
|
|
|
+ /**
|
|
|
+ * Retrieves the column set to use for placement.
|
|
|
+ * @param {number} columnSpan The number of columns this current item spans.
|
|
|
+ * @param {number} columns The total columns in the grid.
|
|
|
+ * @return {Array.<number>} An array of numbers represeting the column set.
|
|
|
+ */
|
|
|
+
|
|
|
+ function getAvailablePositions(positions, columnSpan, columns) {
|
|
|
+ // The item spans only one column.
|
|
|
+ if (columnSpan === 1) {
|
|
|
+ return positions;
|
|
|
+ } // The item spans more than one column, figure out how many different
|
|
|
+ // places it could fit horizontally.
|
|
|
+ // The group count is the number of places within the positions this block
|
|
|
+ // could fit, ignoring the current positions of items.
|
|
|
+ // Imagine a 2 column brick as the second item in a 4 column grid with
|
|
|
+ // 10px height each. Find the places it would fit:
|
|
|
+ // [20, 10, 10, 0]
|
|
|
+ // | | |
|
|
|
+ // * * *
|
|
|
+ //
|
|
|
+ // Then take the places which fit and get the bigger of the two:
|
|
|
+ // max([20, 10]), max([10, 10]), max([10, 0]) = [20, 10, 10]
|
|
|
+ //
|
|
|
+ // Next, find the first smallest number (the short column).
|
|
|
+ // [20, 10, 10]
|
|
|
+ // |
|
|
|
+ // *
|
|
|
+ //
|
|
|
+ // And that's where it should be placed!
|
|
|
+ //
|
|
|
+ // Another example where the second column's item extends past the first:
|
|
|
+ // [10, 20, 10, 0] => [20, 20, 10] => 10
|
|
|
+
|
|
|
+
|
|
|
+ var available = []; // For how many possible positions for this item there are.
|
|
|
+
|
|
|
+ for (var i = 0; i <= columns - columnSpan; i++) {
|
|
|
+ // Find the bigger value for each place it could fit.
|
|
|
+ available.push(arrayMax(positions.slice(i, i + columnSpan)));
|
|
|
+ }
|
|
|
+
|
|
|
+ return available;
|
|
|
+ }
|
|
|
+ /**
|
|
|
+ * Find index of short column, the first from the left where this item will go.
|
|
|
+ *
|
|
|
+ * @param {Array.<number>} positions The array to search for the smallest number.
|
|
|
+ * @param {number} buffer Optional buffer which is very useful when the height
|
|
|
+ * is a percentage of the width.
|
|
|
+ * @return {number} Index of the short column.
|
|
|
+ */
|
|
|
+
|
|
|
+ function getShortColumn(positions, buffer) {
|
|
|
+ var minPosition = arrayMin(positions);
|
|
|
+
|
|
|
+ for (var i = 0, len = positions.length; i < len; i++) {
|
|
|
+ if (positions[i] >= minPosition - buffer && positions[i] <= minPosition + buffer) {
|
|
|
+ return i;
|
|
|
+ }
|
|
|
+ }
|
|
|
+
|
|
|
+ return 0;
|
|
|
+ }
|
|
|
+ /**
|
|
|
+ * Determine the location of the next item, based on its size.
|
|
|
+ * @param {Object} itemSize Object with width and height.
|
|
|
+ * @param {Array.<number>} positions Positions of the other current items.
|
|
|
+ * @param {number} gridSize The column width or row height.
|
|
|
+ * @param {number} total The total number of columns or rows.
|
|
|
+ * @param {number} threshold Buffer value for the column to fit.
|
|
|
+ * @param {number} buffer Vertical buffer for the height of items.
|
|
|
+ * @return {Point}
|
|
|
+ */
|
|
|
+
|
|
|
+ function getItemPosition(_ref) {
|
|
|
+ var itemSize = _ref.itemSize,
|
|
|
+ positions = _ref.positions,
|
|
|
+ gridSize = _ref.gridSize,
|
|
|
+ total = _ref.total,
|
|
|
+ threshold = _ref.threshold,
|
|
|
+ buffer = _ref.buffer;
|
|
|
+ var span = getColumnSpan(itemSize.width, gridSize, total, threshold);
|
|
|
+ var setY = getAvailablePositions(positions, span, total);
|
|
|
+ var shortColumnIndex = getShortColumn(setY, buffer); // Position the item
|
|
|
+
|
|
|
+ var point = new Point(gridSize * shortColumnIndex, setY[shortColumnIndex]); // Update the columns array with the new values for each column.
|
|
|
+ // e.g. before the update the columns could be [250, 0, 0, 0] for an item
|
|
|
+ // which spans 2 columns. After it would be [250, itemHeight, itemHeight, 0].
|
|
|
+
|
|
|
+ var setHeight = setY[shortColumnIndex] + itemSize.height;
|
|
|
+
|
|
|
+ for (var i = 0; i < span; i++) {
|
|
|
+ positions[shortColumnIndex + i] = setHeight;
|
|
|
+ }
|
|
|
+
|
|
|
+ return point;
|
|
|
+ }
|
|
|
+ /**
|
|
|
+ * This method attempts to center items. This method could potentially be slow
|
|
|
+ * with a large number of items because it must place items, then check every
|
|
|
+ * previous item to ensure there is no overlap.
|
|
|
+ * @param {Array.<Rect>} itemRects Item data objects.
|
|
|
+ * @param {number} containerWidth Width of the containing element.
|
|
|
+ * @return {Array.<Point>}
|
|
|
+ */
|
|
|
+
|
|
|
+ function getCenteredPositions(itemRects, containerWidth) {
|
|
|
+ var rowMap = {}; // Populate rows by their offset because items could jump between rows like:
|
|
|
+ // a c
|
|
|
+ // bbb
|
|
|
+
|
|
|
+ itemRects.forEach(function (itemRect) {
|
|
|
+ if (rowMap[itemRect.top]) {
|
|
|
+ // Push the point to the last row array.
|
|
|
+ rowMap[itemRect.top].push(itemRect);
|
|
|
+ } else {
|
|
|
+ // Start of a new row.
|
|
|
+ rowMap[itemRect.top] = [itemRect];
|
|
|
+ }
|
|
|
+ }); // For each row, find the end of the last item, then calculate
|
|
|
+ // the remaining space by dividing it by 2. Then add that
|
|
|
+ // offset to the x position of each point.
|
|
|
+
|
|
|
+ var rects = [];
|
|
|
+ var rows = [];
|
|
|
+ var centeredRows = [];
|
|
|
+ Object.keys(rowMap).forEach(function (key) {
|
|
|
+ var itemRects = rowMap[key];
|
|
|
+ rows.push(itemRects);
|
|
|
+ var lastItem = itemRects[itemRects.length - 1];
|
|
|
+ var end = lastItem.left + lastItem.width;
|
|
|
+ var offset = Math.round((containerWidth - end) / 2);
|
|
|
+ var finalRects = itemRects;
|
|
|
+ var canMove = false;
|
|
|
+
|
|
|
+ if (offset > 0) {
|
|
|
+ var newRects = [];
|
|
|
+ canMove = itemRects.every(function (r) {
|
|
|
+ var newRect = new Rect(r.left + offset, r.top, r.width, r.height, r.id); // Check all current rects to make sure none overlap.
|
|
|
+
|
|
|
+ var noOverlap = !rects.some(function (r) {
|
|
|
+ return Rect.intersects(newRect, r);
|
|
|
+ });
|
|
|
+ newRects.push(newRect);
|
|
|
+ return noOverlap;
|
|
|
+ }); // If none of the rectangles overlapped, the whole group can be centered.
|
|
|
+
|
|
|
+ if (canMove) {
|
|
|
+ finalRects = newRects;
|
|
|
+ }
|
|
|
+ } // If the items are not going to be offset, ensure that the original
|
|
|
+ // placement for this row will not overlap previous rows (row-spanning
|
|
|
+ // elements could be in the way).
|
|
|
+
|
|
|
+
|
|
|
+ if (!canMove) {
|
|
|
+ var intersectingRect;
|
|
|
+ var hasOverlap = itemRects.some(function (itemRect) {
|
|
|
+ return rects.some(function (r) {
|
|
|
+ var intersects = Rect.intersects(itemRect, r);
|
|
|
+
|
|
|
+ if (intersects) {
|
|
|
+ intersectingRect = r;
|
|
|
+ }
|
|
|
+
|
|
|
+ return intersects;
|
|
|
+ });
|
|
|
+ }); // If there is any overlap, replace the overlapping row with the original.
|
|
|
+
|
|
|
+ if (hasOverlap) {
|
|
|
+ var rowIndex = centeredRows.findIndex(function (items) {
|
|
|
+ return items.includes(intersectingRect);
|
|
|
+ });
|
|
|
+ centeredRows.splice(rowIndex, 1, rows[rowIndex]);
|
|
|
+ }
|
|
|
+ }
|
|
|
+
|
|
|
+ rects = rects.concat(finalRects);
|
|
|
+ centeredRows.push(finalRects);
|
|
|
+ }); // Reduce array of arrays to a single array of points.
|
|
|
+ // https://stackoverflow.com/a/10865042/373422
|
|
|
+ // Then reset sort back to how the items were passed to this method.
|
|
|
+ // Remove the wrapper object with index, map to a Point.
|
|
|
+
|
|
|
+ return [].concat.apply([], centeredRows) // eslint-disable-line prefer-spread
|
|
|
+ .sort(function (a, b) {
|
|
|
+ return a.id - b.id;
|
|
|
+ }).map(function (itemRect) {
|
|
|
+ return new Point(itemRect.left, itemRect.top);
|
|
|
+ });
|
|
|
+ }
|
|
|
+
|
|
|
+ /**
|
|
|
+ * Hyphenates a javascript style string to a css one. For example:
|
|
|
+ * MozBoxSizing -> -moz-box-sizing.
|
|
|
+ * @param {string} str The string to hyphenate.
|
|
|
+ * @return {string} The hyphenated string.
|
|
|
+ */
|
|
|
+ function hyphenate(str) {
|
|
|
+ return str.replace(/([A-Z])/g, function (str, m1) {
|
|
|
+ return "-".concat(m1.toLowerCase());
|
|
|
+ });
|
|
|
+ }
|
|
|
+
|
|
|
+ function arrayUnique(x) {
|
|
|
+ return Array.from(new Set(x));
|
|
|
+ } // Used for unique instance variables
|
|
|
+
|
|
|
+
|
|
|
+ var id$1 = 0;
|
|
|
+
|
|
|
+ var Shuffle =
|
|
|
+ /*#__PURE__*/
|
|
|
+ function (_TinyEmitter) {
|
|
|
+ _inherits(Shuffle, _TinyEmitter);
|
|
|
+
|
|
|
+ /**
|
|
|
+ * Categorize, sort, and filter a responsive grid of items.
|
|
|
+ *
|
|
|
+ * @param {Element} element An element which is the parent container for the grid items.
|
|
|
+ * @param {Object} [options=Shuffle.options] Options object.
|
|
|
+ * @constructor
|
|
|
+ */
|
|
|
+ function Shuffle(element) {
|
|
|
+ var _this;
|
|
|
+
|
|
|
+ var options = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : {};
|
|
|
+
|
|
|
+ _classCallCheck(this, Shuffle);
|
|
|
+
|
|
|
+ _this = _possibleConstructorReturn(this, _getPrototypeOf(Shuffle).call(this));
|
|
|
+ _this.options = Object.assign({}, Shuffle.options, options); // Allow misspelling of delimiter since that's how it used to be.
|
|
|
+ // Remove in v6.
|
|
|
+
|
|
|
+ if (_this.options.delimeter) {
|
|
|
+ _this.options.delimiter = _this.options.delimeter;
|
|
|
+ }
|
|
|
+
|
|
|
+ _this.lastSort = {};
|
|
|
+ _this.group = Shuffle.ALL_ITEMS;
|
|
|
+ _this.lastFilter = Shuffle.ALL_ITEMS;
|
|
|
+ _this.isEnabled = true;
|
|
|
+ _this.isDestroyed = false;
|
|
|
+ _this.isInitialized = false;
|
|
|
+ _this._transitions = [];
|
|
|
+ _this.isTransitioning = false;
|
|
|
+ _this._queue = [];
|
|
|
+
|
|
|
+ var el = _this._getElementOption(element);
|
|
|
+
|
|
|
+ if (!el) {
|
|
|
+ throw new TypeError('Shuffle needs to be initialized with an element.');
|
|
|
+ }
|
|
|
+
|
|
|
+ _this.element = el;
|
|
|
+ _this.id = 'shuffle_' + id$1;
|
|
|
+ id$1 += 1;
|
|
|
+
|
|
|
+ _this._init();
|
|
|
+
|
|
|
+ _this.isInitialized = true;
|
|
|
+ return _this;
|
|
|
+ }
|
|
|
+
|
|
|
+ _createClass(Shuffle, [{
|
|
|
+ key: "_init",
|
|
|
+ value: function _init() {
|
|
|
+ this.items = this._getItems();
|
|
|
+ this.options.sizer = this._getElementOption(this.options.sizer); // Add class and invalidate styles
|
|
|
+
|
|
|
+ this.element.classList.add(Shuffle.Classes.BASE); // Set initial css for each item
|
|
|
+
|
|
|
+ this._initItems(this.items); // Bind resize events
|
|
|
+
|
|
|
+
|
|
|
+ this._onResize = this._getResizeFunction();
|
|
|
+ window.addEventListener('resize', this._onResize); // If the page has not already emitted the `load` event, call layout on load.
|
|
|
+ // This avoids layout issues caused by images and fonts loading after the
|
|
|
+ // instance has been initialized.
|
|
|
+
|
|
|
+ if (document.readyState !== 'complete') {
|
|
|
+ var layout = this.layout.bind(this);
|
|
|
+ window.addEventListener('load', function onLoad() {
|
|
|
+ window.removeEventListener('load', onLoad);
|
|
|
+ layout();
|
|
|
+ });
|
|
|
+ } // Get container css all in one request. Causes reflow
|
|
|
+
|
|
|
+
|
|
|
+ var containerCss = window.getComputedStyle(this.element, null);
|
|
|
+ var containerWidth = Shuffle.getSize(this.element).width; // Add styles to the container if it doesn't have them.
|
|
|
+
|
|
|
+ this._validateStyles(containerCss); // We already got the container's width above, no need to cause another
|
|
|
+ // reflow getting it again... Calculate the number of columns there will be
|
|
|
+
|
|
|
+
|
|
|
+ this._setColumns(containerWidth); // Kick off!
|
|
|
+
|
|
|
+
|
|
|
+ this.filter(this.options.group, this.options.initialSort); // The shuffle items haven't had transitions set on them yet so the user
|
|
|
+ // doesn't see the first layout. Set them now that the first layout is done.
|
|
|
+ // First, however, a synchronous layout must be caused for the previous
|
|
|
+ // styles to be applied without transitions.
|
|
|
+
|
|
|
+ this.element.offsetWidth; // eslint-disable-line no-unused-expressions
|
|
|
+
|
|
|
+ this.setItemTransitions(this.items);
|
|
|
+ this.element.style.transition = "height ".concat(this.options.speed, "ms ").concat(this.options.easing);
|
|
|
+ }
|
|
|
+ /**
|
|
|
+ * Returns a throttled and proxied function for the resize handler.
|
|
|
+ * @return {function}
|
|
|
+ * @private
|
|
|
+ */
|
|
|
+
|
|
|
+ }, {
|
|
|
+ key: "_getResizeFunction",
|
|
|
+ value: function _getResizeFunction() {
|
|
|
+ var resizeFunction = this._handleResize.bind(this);
|
|
|
+
|
|
|
+ return this.options.throttle ? this.options.throttle(resizeFunction, this.options.throttleTime) : resizeFunction;
|
|
|
+ }
|
|
|
+ /**
|
|
|
+ * Retrieve an element from an option.
|
|
|
+ * @param {string|jQuery|Element} option The option to check.
|
|
|
+ * @return {?Element} The plain element or null.
|
|
|
+ * @private
|
|
|
+ */
|
|
|
+
|
|
|
+ }, {
|
|
|
+ key: "_getElementOption",
|
|
|
+ value: function _getElementOption(option) {
|
|
|
+ // If column width is a string, treat is as a selector and search for the
|
|
|
+ // sizer element within the outermost container
|
|
|
+ if (typeof option === 'string') {
|
|
|
+ return this.element.querySelector(option);
|
|
|
+ } // Check for an element
|
|
|
+
|
|
|
+
|
|
|
+ if (option && option.nodeType && option.nodeType === 1) {
|
|
|
+ return option;
|
|
|
+ } // Check for jQuery object
|
|
|
+
|
|
|
+
|
|
|
+ if (option && option.jquery) {
|
|
|
+ return option[0];
|
|
|
+ }
|
|
|
+
|
|
|
+ return null;
|
|
|
+ }
|
|
|
+ /**
|
|
|
+ * Ensures the shuffle container has the css styles it needs applied to it.
|
|
|
+ * @param {Object} styles Key value pairs for position and overflow.
|
|
|
+ * @private
|
|
|
+ */
|
|
|
+
|
|
|
+ }, {
|
|
|
+ key: "_validateStyles",
|
|
|
+ value: function _validateStyles(styles) {
|
|
|
+ // Position cannot be static.
|
|
|
+ if (styles.position === 'static') {
|
|
|
+ this.element.style.position = 'relative';
|
|
|
+ } // Overflow has to be hidden.
|
|
|
+
|
|
|
+
|
|
|
+ if (styles.overflow !== 'hidden') {
|
|
|
+ this.element.style.overflow = 'hidden';
|
|
|
+ }
|
|
|
+ }
|
|
|
+ /**
|
|
|
+ * Filter the elements by a category.
|
|
|
+ * @param {string|string[]|function(Element):boolean} [category] Category to
|
|
|
+ * filter by. If it's given, the last category will be used to filter the items.
|
|
|
+ * @param {Array} [collection] Optionally filter a collection. Defaults to
|
|
|
+ * all the items.
|
|
|
+ * @return {{visible: ShuffleItem[], hidden: ShuffleItem[]}}
|
|
|
+ * @private
|
|
|
+ */
|
|
|
+
|
|
|
+ }, {
|
|
|
+ key: "_filter",
|
|
|
+ value: function _filter() {
|
|
|
+ var category = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : this.lastFilter;
|
|
|
+ var collection = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : this.items;
|
|
|
+
|
|
|
+ var set = this._getFilteredSets(category, collection); // Individually add/remove hidden/visible classes
|
|
|
+
|
|
|
+
|
|
|
+ this._toggleFilterClasses(set); // Save the last filter in case elements are appended.
|
|
|
+
|
|
|
+
|
|
|
+ this.lastFilter = category; // This is saved mainly because providing a filter function (like searching)
|
|
|
+ // will overwrite the `lastFilter` property every time its called.
|
|
|
+
|
|
|
+ if (typeof category === 'string') {
|
|
|
+ this.group = category;
|
|
|
+ }
|
|
|
+
|
|
|
+ return set;
|
|
|
+ }
|
|
|
+ /**
|
|
|
+ * Returns an object containing the visible and hidden elements.
|
|
|
+ * @param {string|string[]|function(Element):boolean} category Category or function to filter by.
|
|
|
+ * @param {ShuffleItem[]} items A collection of items to filter.
|
|
|
+ * @return {{visible: ShuffleItem[], hidden: ShuffleItem[]}}
|
|
|
+ * @private
|
|
|
+ */
|
|
|
+
|
|
|
+ }, {
|
|
|
+ key: "_getFilteredSets",
|
|
|
+ value: function _getFilteredSets(category, items) {
|
|
|
+ var _this2 = this;
|
|
|
+
|
|
|
+ var visible = [];
|
|
|
+ var hidden = []; // category === 'all', add visible class to everything
|
|
|
+
|
|
|
+ if (category === Shuffle.ALL_ITEMS) {
|
|
|
+ visible = items; // Loop through each item and use provided function to determine
|
|
|
+ // whether to hide it or not.
|
|
|
+ } else {
|
|
|
+ items.forEach(function (item) {
|
|
|
+ if (_this2._doesPassFilter(category, item.element)) {
|
|
|
+ visible.push(item);
|
|
|
+ } else {
|
|
|
+ hidden.push(item);
|
|
|
+ }
|
|
|
+ });
|
|
|
+ }
|
|
|
+
|
|
|
+ return {
|
|
|
+ visible: visible,
|
|
|
+ hidden: hidden
|
|
|
+ };
|
|
|
+ }
|
|
|
+ /**
|
|
|
+ * Test an item to see if it passes a category.
|
|
|
+ * @param {string|string[]|function():boolean} category Category or function to filter by.
|
|
|
+ * @param {Element} element An element to test.
|
|
|
+ * @return {boolean} Whether it passes the category/filter.
|
|
|
+ * @private
|
|
|
+ */
|
|
|
+
|
|
|
+ }, {
|
|
|
+ key: "_doesPassFilter",
|
|
|
+ value: function _doesPassFilter(category, element) {
|
|
|
+ if (typeof category === 'function') {
|
|
|
+ return category.call(element, element, this);
|
|
|
+ } // Check each element's data-groups attribute against the given category.
|
|
|
+
|
|
|
+
|
|
|
+ var attr = element.getAttribute('data-' + Shuffle.FILTER_ATTRIBUTE_KEY);
|
|
|
+ var keys = this.options.delimiter ? attr.split(this.options.delimiter) : JSON.parse(attr);
|
|
|
+
|
|
|
+ function testCategory(category) {
|
|
|
+ return keys.includes(category);
|
|
|
+ }
|
|
|
+
|
|
|
+ if (Array.isArray(category)) {
|
|
|
+ if (this.options.filterMode === Shuffle.FilterMode.ANY) {
|
|
|
+ return category.some(testCategory);
|
|
|
+ }
|
|
|
+
|
|
|
+ return category.every(testCategory);
|
|
|
+ }
|
|
|
+
|
|
|
+ return keys.includes(category);
|
|
|
+ }
|
|
|
+ /**
|
|
|
+ * Toggles the visible and hidden class names.
|
|
|
+ * @param {{visible, hidden}} Object with visible and hidden arrays.
|
|
|
+ * @private
|
|
|
+ */
|
|
|
+
|
|
|
+ }, {
|
|
|
+ key: "_toggleFilterClasses",
|
|
|
+ value: function _toggleFilterClasses(_ref) {
|
|
|
+ var visible = _ref.visible,
|
|
|
+ hidden = _ref.hidden;
|
|
|
+ visible.forEach(function (item) {
|
|
|
+ item.show();
|
|
|
+ });
|
|
|
+ hidden.forEach(function (item) {
|
|
|
+ item.hide();
|
|
|
+ });
|
|
|
+ }
|
|
|
+ /**
|
|
|
+ * Set the initial css for each item
|
|
|
+ * @param {ShuffleItem[]} items Set to initialize.
|
|
|
+ * @private
|
|
|
+ */
|
|
|
+
|
|
|
+ }, {
|
|
|
+ key: "_initItems",
|
|
|
+ value: function _initItems(items) {
|
|
|
+ items.forEach(function (item) {
|
|
|
+ item.init();
|
|
|
+ });
|
|
|
+ }
|
|
|
+ /**
|
|
|
+ * Remove element reference and styles.
|
|
|
+ * @param {ShuffleItem[]} items Set to dispose.
|
|
|
+ * @private
|
|
|
+ */
|
|
|
+
|
|
|
+ }, {
|
|
|
+ key: "_disposeItems",
|
|
|
+ value: function _disposeItems(items) {
|
|
|
+ items.forEach(function (item) {
|
|
|
+ item.dispose();
|
|
|
+ });
|
|
|
+ }
|
|
|
+ /**
|
|
|
+ * Updates the visible item count.
|
|
|
+ * @private
|
|
|
+ */
|
|
|
+
|
|
|
+ }, {
|
|
|
+ key: "_updateItemCount",
|
|
|
+ value: function _updateItemCount() {
|
|
|
+ this.visibleItems = this._getFilteredItems().length;
|
|
|
+ }
|
|
|
+ /**
|
|
|
+ * Sets css transform transition on a group of elements. This is not executed
|
|
|
+ * at the same time as `item.init` so that transitions don't occur upon
|
|
|
+ * initialization of a new Shuffle instance.
|
|
|
+ * @param {ShuffleItem[]} items Shuffle items to set transitions on.
|
|
|
+ * @protected
|
|
|
+ */
|
|
|
+
|
|
|
+ }, {
|
|
|
+ key: "setItemTransitions",
|
|
|
+ value: function setItemTransitions(items) {
|
|
|
+ var _this$options = this.options,
|
|
|
+ speed = _this$options.speed,
|
|
|
+ easing = _this$options.easing;
|
|
|
+ var positionProps = this.options.useTransforms ? ['transform'] : ['top', 'left']; // Allow users to transtion other properties if they exist in the `before`
|
|
|
+ // css mapping of the shuffle item.
|
|
|
+
|
|
|
+ var cssProps = Object.keys(ShuffleItem.Css.HIDDEN.before).map(function (k) {
|
|
|
+ return hyphenate(k);
|
|
|
+ });
|
|
|
+ var properties = positionProps.concat(cssProps).join();
|
|
|
+ items.forEach(function (item) {
|
|
|
+ item.element.style.transitionDuration = speed + 'ms';
|
|
|
+ item.element.style.transitionTimingFunction = easing;
|
|
|
+ item.element.style.transitionProperty = properties;
|
|
|
+ });
|
|
|
+ }
|
|
|
+ }, {
|
|
|
+ key: "_getItems",
|
|
|
+ value: function _getItems() {
|
|
|
+ var _this3 = this;
|
|
|
+
|
|
|
+ return Array.from(this.element.children).filter(function (el) {
|
|
|
+ return matchesSelector(el, _this3.options.itemSelector);
|
|
|
+ }).map(function (el) {
|
|
|
+ return new ShuffleItem(el);
|
|
|
+ });
|
|
|
+ }
|
|
|
+ /**
|
|
|
+ * Combine the current items array with a new one and sort it by DOM order.
|
|
|
+ * @param {ShuffleItem[]} items Items to track.
|
|
|
+ * @return {ShuffleItem[]}
|
|
|
+ */
|
|
|
+
|
|
|
+ }, {
|
|
|
+ key: "_mergeNewItems",
|
|
|
+ value: function _mergeNewItems(items) {
|
|
|
+ var children = Array.from(this.element.children);
|
|
|
+ return sorter(this.items.concat(items), {
|
|
|
+ by: function by(element) {
|
|
|
+ return children.indexOf(element);
|
|
|
+ }
|
|
|
+ });
|
|
|
+ }
|
|
|
+ }, {
|
|
|
+ key: "_getFilteredItems",
|
|
|
+ value: function _getFilteredItems() {
|
|
|
+ return this.items.filter(function (item) {
|
|
|
+ return item.isVisible;
|
|
|
+ });
|
|
|
+ }
|
|
|
+ }, {
|
|
|
+ key: "_getConcealedItems",
|
|
|
+ value: function _getConcealedItems() {
|
|
|
+ return this.items.filter(function (item) {
|
|
|
+ return !item.isVisible;
|
|
|
+ });
|
|
|
+ }
|
|
|
+ /**
|
|
|
+ * Returns the column size, based on column width and sizer options.
|
|
|
+ * @param {number} containerWidth Size of the parent container.
|
|
|
+ * @param {number} gutterSize Size of the gutters.
|
|
|
+ * @return {number}
|
|
|
+ * @private
|
|
|
+ */
|
|
|
+
|
|
|
+ }, {
|
|
|
+ key: "_getColumnSize",
|
|
|
+ value: function _getColumnSize(containerWidth, gutterSize) {
|
|
|
+ var size; // If the columnWidth property is a function, then the grid is fluid
|
|
|
+
|
|
|
+ if (typeof this.options.columnWidth === 'function') {
|
|
|
+ size = this.options.columnWidth(containerWidth); // columnWidth option isn't a function, are they using a sizing element?
|
|
|
+ } else if (this.options.sizer) {
|
|
|
+ size = Shuffle.getSize(this.options.sizer).width; // if not, how about the explicitly set option?
|
|
|
+ } else if (this.options.columnWidth) {
|
|
|
+ size = this.options.columnWidth; // or use the size of the first item
|
|
|
+ } else if (this.items.length > 0) {
|
|
|
+ size = Shuffle.getSize(this.items[0].element, true).width; // if there's no items, use size of container
|
|
|
+ } else {
|
|
|
+ size = containerWidth;
|
|
|
+ } // Don't let them set a column width of zero.
|
|
|
+
|
|
|
+
|
|
|
+ if (size === 0) {
|
|
|
+ size = containerWidth;
|
|
|
+ }
|
|
|
+
|
|
|
+ return size + gutterSize;
|
|
|
+ }
|
|
|
+ /**
|
|
|
+ * Returns the gutter size, based on gutter width and sizer options.
|
|
|
+ * @param {number} containerWidth Size of the parent container.
|
|
|
+ * @return {number}
|
|
|
+ * @private
|
|
|
+ */
|
|
|
+
|
|
|
+ }, {
|
|
|
+ key: "_getGutterSize",
|
|
|
+ value: function _getGutterSize(containerWidth) {
|
|
|
+ var size;
|
|
|
+
|
|
|
+ if (typeof this.options.gutterWidth === 'function') {
|
|
|
+ size = this.options.gutterWidth(containerWidth);
|
|
|
+ } else if (this.options.sizer) {
|
|
|
+ size = getNumberStyle(this.options.sizer, 'marginLeft');
|
|
|
+ } else {
|
|
|
+ size = this.options.gutterWidth;
|
|
|
+ }
|
|
|
+
|
|
|
+ return size;
|
|
|
+ }
|
|
|
+ /**
|
|
|
+ * Calculate the number of columns to be used. Gets css if using sizer element.
|
|
|
+ * @param {number} [containerWidth] Optionally specify a container width if
|
|
|
+ * it's already available.
|
|
|
+ */
|
|
|
+
|
|
|
+ }, {
|
|
|
+ key: "_setColumns",
|
|
|
+ value: function _setColumns() {
|
|
|
+ var containerWidth = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : Shuffle.getSize(this.element).width;
|
|
|
+
|
|
|
+ var gutter = this._getGutterSize(containerWidth);
|
|
|
+
|
|
|
+ var columnWidth = this._getColumnSize(containerWidth, gutter);
|
|
|
+
|
|
|
+ var calculatedColumns = (containerWidth + gutter) / columnWidth; // Widths given from getStyles are not precise enough...
|
|
|
+
|
|
|
+ if (Math.abs(Math.round(calculatedColumns) - calculatedColumns) < this.options.columnThreshold) {
|
|
|
+ // e.g. calculatedColumns = 11.998876
|
|
|
+ calculatedColumns = Math.round(calculatedColumns);
|
|
|
+ }
|
|
|
+
|
|
|
+ this.cols = Math.max(Math.floor(calculatedColumns || 0), 1);
|
|
|
+ this.containerWidth = containerWidth;
|
|
|
+ this.colWidth = columnWidth;
|
|
|
+ }
|
|
|
+ /**
|
|
|
+ * Adjust the height of the grid
|
|
|
+ */
|
|
|
+
|
|
|
+ }, {
|
|
|
+ key: "_setContainerSize",
|
|
|
+ value: function _setContainerSize() {
|
|
|
+ this.element.style.height = this._getContainerSize() + 'px';
|
|
|
+ }
|
|
|
+ /**
|
|
|
+ * Based on the column heights, it returns the biggest one.
|
|
|
+ * @return {number}
|
|
|
+ * @private
|
|
|
+ */
|
|
|
+
|
|
|
+ }, {
|
|
|
+ key: "_getContainerSize",
|
|
|
+ value: function _getContainerSize() {
|
|
|
+ return arrayMax(this.positions);
|
|
|
+ }
|
|
|
+ /**
|
|
|
+ * Get the clamped stagger amount.
|
|
|
+ * @param {number} index Index of the item to be staggered.
|
|
|
+ * @return {number}
|
|
|
+ */
|
|
|
+
|
|
|
+ }, {
|
|
|
+ key: "_getStaggerAmount",
|
|
|
+ value: function _getStaggerAmount(index) {
|
|
|
+ return Math.min(index * this.options.staggerAmount, this.options.staggerAmountMax);
|
|
|
+ }
|
|
|
+ /**
|
|
|
+ * Emit an event from this instance.
|
|
|
+ * @param {string} name Event name.
|
|
|
+ * @param {Object} [data={}] Optional object data.
|
|
|
+ */
|
|
|
+
|
|
|
+ }, {
|
|
|
+ key: "_dispatch",
|
|
|
+ value: function _dispatch(name) {
|
|
|
+ var data = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : {};
|
|
|
+
|
|
|
+ if (this.isDestroyed) {
|
|
|
+ return;
|
|
|
+ }
|
|
|
+
|
|
|
+ data.shuffle = this;
|
|
|
+ this.emit(name, data);
|
|
|
+ }
|
|
|
+ /**
|
|
|
+ * Zeros out the y columns array, which is used to determine item placement.
|
|
|
+ * @private
|
|
|
+ */
|
|
|
+
|
|
|
+ }, {
|
|
|
+ key: "_resetCols",
|
|
|
+ value: function _resetCols() {
|
|
|
+ var i = this.cols;
|
|
|
+ this.positions = [];
|
|
|
+
|
|
|
+ while (i) {
|
|
|
+ i -= 1;
|
|
|
+ this.positions.push(0);
|
|
|
+ }
|
|
|
+ }
|
|
|
+ /**
|
|
|
+ * Loops through each item that should be shown and calculates the x, y position.
|
|
|
+ * @param {ShuffleItem[]} items Array of items that will be shown/layed
|
|
|
+ * out in order in their array.
|
|
|
+ */
|
|
|
+
|
|
|
+ }, {
|
|
|
+ key: "_layout",
|
|
|
+ value: function _layout(items) {
|
|
|
+ var _this4 = this;
|
|
|
+
|
|
|
+ var itemPositions = this._getNextPositions(items);
|
|
|
+
|
|
|
+ var count = 0;
|
|
|
+ items.forEach(function (item, i) {
|
|
|
+ function callback() {
|
|
|
+ item.applyCss(ShuffleItem.Css.VISIBLE.after);
|
|
|
+ } // If the item will not change its position, do not add it to the render
|
|
|
+ // queue. Transitions don't fire when setting a property to the same value.
|
|
|
+
|
|
|
+
|
|
|
+ if (Point.equals(item.point, itemPositions[i]) && !item.isHidden) {
|
|
|
+ item.applyCss(ShuffleItem.Css.VISIBLE.before);
|
|
|
+ callback();
|
|
|
+ return;
|
|
|
+ }
|
|
|
+
|
|
|
+ item.point = itemPositions[i];
|
|
|
+ item.scale = ShuffleItem.Scale.VISIBLE;
|
|
|
+ item.isHidden = false; // Clone the object so that the `before` object isn't modified when the
|
|
|
+ // transition delay is added.
|
|
|
+
|
|
|
+ var styles = _this4.getStylesForTransition(item, ShuffleItem.Css.VISIBLE.before);
|
|
|
+
|
|
|
+ styles.transitionDelay = _this4._getStaggerAmount(count) + 'ms';
|
|
|
+
|
|
|
+ _this4._queue.push({
|
|
|
+ item: item,
|
|
|
+ styles: styles,
|
|
|
+ callback: callback
|
|
|
+ });
|
|
|
+
|
|
|
+ count += 1;
|
|
|
+ });
|
|
|
+ }
|
|
|
+ /**
|
|
|
+ * Return an array of Point instances representing the future positions of
|
|
|
+ * each item.
|
|
|
+ * @param {ShuffleItem[]} items Array of sorted shuffle items.
|
|
|
+ * @return {Point[]}
|
|
|
+ * @private
|
|
|
+ */
|
|
|
+
|
|
|
+ }, {
|
|
|
+ key: "_getNextPositions",
|
|
|
+ value: function _getNextPositions(items) {
|
|
|
+ var _this5 = this;
|
|
|
+
|
|
|
+ // If position data is going to be changed, add the item's size to the
|
|
|
+ // transformer to allow for calculations.
|
|
|
+ if (this.options.isCentered) {
|
|
|
+ var itemsData = items.map(function (item, i) {
|
|
|
+ var itemSize = Shuffle.getSize(item.element, true);
|
|
|
+
|
|
|
+ var point = _this5._getItemPosition(itemSize);
|
|
|
+
|
|
|
+ return new Rect(point.x, point.y, itemSize.width, itemSize.height, i);
|
|
|
+ });
|
|
|
+ return this.getTransformedPositions(itemsData, this.containerWidth);
|
|
|
+ } // If no transforms are going to happen, simply return an array of the
|
|
|
+ // future points of each item.
|
|
|
+
|
|
|
+
|
|
|
+ return items.map(function (item) {
|
|
|
+ return _this5._getItemPosition(Shuffle.getSize(item.element, true));
|
|
|
+ });
|
|
|
+ }
|
|
|
+ /**
|
|
|
+ * Determine the location of the next item, based on its size.
|
|
|
+ * @param {{width: number, height: number}} itemSize Object with width and height.
|
|
|
+ * @return {Point}
|
|
|
+ * @private
|
|
|
+ */
|
|
|
+
|
|
|
+ }, {
|
|
|
+ key: "_getItemPosition",
|
|
|
+ value: function _getItemPosition(itemSize) {
|
|
|
+ return getItemPosition({
|
|
|
+ itemSize: itemSize,
|
|
|
+ positions: this.positions,
|
|
|
+ gridSize: this.colWidth,
|
|
|
+ total: this.cols,
|
|
|
+ threshold: this.options.columnThreshold,
|
|
|
+ buffer: this.options.buffer
|
|
|
+ });
|
|
|
+ }
|
|
|
+ /**
|
|
|
+ * Mutate positions before they're applied.
|
|
|
+ * @param {Rect[]} itemRects Item data objects.
|
|
|
+ * @param {number} containerWidth Width of the containing element.
|
|
|
+ * @return {Point[]}
|
|
|
+ * @protected
|
|
|
+ */
|
|
|
+
|
|
|
+ }, {
|
|
|
+ key: "getTransformedPositions",
|
|
|
+ value: function getTransformedPositions(itemRects, containerWidth) {
|
|
|
+ return getCenteredPositions(itemRects, containerWidth);
|
|
|
+ }
|
|
|
+ /**
|
|
|
+ * Hides the elements that don't match our filter.
|
|
|
+ * @param {ShuffleItem[]} collection Collection to shrink.
|
|
|
+ * @private
|
|
|
+ */
|
|
|
+
|
|
|
+ }, {
|
|
|
+ key: "_shrink",
|
|
|
+ value: function _shrink() {
|
|
|
+ var _this6 = this;
|
|
|
+
|
|
|
+ var collection = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : this._getConcealedItems();
|
|
|
+ var count = 0;
|
|
|
+ collection.forEach(function (item) {
|
|
|
+ function callback() {
|
|
|
+ item.applyCss(ShuffleItem.Css.HIDDEN.after);
|
|
|
+ } // Continuing would add a transitionend event listener to the element, but
|
|
|
+ // that listener would not execute because the transform and opacity would
|
|
|
+ // stay the same.
|
|
|
+ // The callback is executed here because it is not guaranteed to be called
|
|
|
+ // after the transitionend event because the transitionend could be
|
|
|
+ // canceled if another animation starts.
|
|
|
+
|
|
|
+
|
|
|
+ if (item.isHidden) {
|
|
|
+ item.applyCss(ShuffleItem.Css.HIDDEN.before);
|
|
|
+ callback();
|
|
|
+ return;
|
|
|
+ }
|
|
|
+
|
|
|
+ item.scale = ShuffleItem.Scale.HIDDEN;
|
|
|
+ item.isHidden = true;
|
|
|
+
|
|
|
+ var styles = _this6.getStylesForTransition(item, ShuffleItem.Css.HIDDEN.before);
|
|
|
+
|
|
|
+ styles.transitionDelay = _this6._getStaggerAmount(count) + 'ms';
|
|
|
+
|
|
|
+ _this6._queue.push({
|
|
|
+ item: item,
|
|
|
+ styles: styles,
|
|
|
+ callback: callback
|
|
|
+ });
|
|
|
+
|
|
|
+ count += 1;
|
|
|
+ });
|
|
|
+ }
|
|
|
+ /**
|
|
|
+ * Resize handler.
|
|
|
+ * @private
|
|
|
+ */
|
|
|
+
|
|
|
+ }, {
|
|
|
+ key: "_handleResize",
|
|
|
+ value: function _handleResize() {
|
|
|
+ // If shuffle is disabled, destroyed, don't do anything
|
|
|
+ if (!this.isEnabled || this.isDestroyed) {
|
|
|
+ return;
|
|
|
+ }
|
|
|
+
|
|
|
+ this.update();
|
|
|
+ }
|
|
|
+ /**
|
|
|
+ * Returns styles which will be applied to the an item for a transition.
|
|
|
+ * @param {ShuffleItem} item Item to get styles for. Should have updated
|
|
|
+ * scale and point properties.
|
|
|
+ * @param {Object} styleObject Extra styles that will be used in the transition.
|
|
|
+ * @return {!Object} Transforms for transitions, left/top for animate.
|
|
|
+ * @protected
|
|
|
+ */
|
|
|
+
|
|
|
+ }, {
|
|
|
+ key: "getStylesForTransition",
|
|
|
+ value: function getStylesForTransition(item, styleObject) {
|
|
|
+ // Clone the object to avoid mutating the original.
|
|
|
+ var styles = Object.assign({}, styleObject);
|
|
|
+
|
|
|
+ if (this.options.useTransforms) {
|
|
|
+ var x = this.options.roundTransforms ? Math.round(item.point.x) : item.point.x;
|
|
|
+ var y = this.options.roundTransforms ? Math.round(item.point.y) : item.point.y;
|
|
|
+ styles.transform = "translate(".concat(x, "px, ").concat(y, "px) scale(").concat(item.scale, ")");
|
|
|
+ } else {
|
|
|
+ styles.left = item.point.x + 'px';
|
|
|
+ styles.top = item.point.y + 'px';
|
|
|
+ }
|
|
|
+
|
|
|
+ return styles;
|
|
|
+ }
|
|
|
+ /**
|
|
|
+ * Listen for the transition end on an element and execute the itemCallback
|
|
|
+ * when it finishes.
|
|
|
+ * @param {Element} element Element to listen on.
|
|
|
+ * @param {function} itemCallback Callback for the item.
|
|
|
+ * @param {function} done Callback to notify `parallel` that this one is done.
|
|
|
+ */
|
|
|
+
|
|
|
+ }, {
|
|
|
+ key: "_whenTransitionDone",
|
|
|
+ value: function _whenTransitionDone(element, itemCallback, done) {
|
|
|
+ var id = onTransitionEnd(element, function (evt) {
|
|
|
+ itemCallback();
|
|
|
+ done(null, evt);
|
|
|
+ });
|
|
|
+
|
|
|
+ this._transitions.push(id);
|
|
|
+ }
|
|
|
+ /**
|
|
|
+ * Return a function which will set CSS styles and call the `done` function
|
|
|
+ * when (if) the transition finishes.
|
|
|
+ * @param {Object} opts Transition object.
|
|
|
+ * @return {function} A function to be called with a `done` function.
|
|
|
+ */
|
|
|
+
|
|
|
+ }, {
|
|
|
+ key: "_getTransitionFunction",
|
|
|
+ value: function _getTransitionFunction(opts) {
|
|
|
+ var _this7 = this;
|
|
|
+
|
|
|
+ return function (done) {
|
|
|
+ opts.item.applyCss(opts.styles);
|
|
|
+
|
|
|
+ _this7._whenTransitionDone(opts.item.element, opts.callback, done);
|
|
|
+ };
|
|
|
+ }
|
|
|
+ /**
|
|
|
+ * Execute the styles gathered in the style queue. This applies styles to elements,
|
|
|
+ * triggering transitions.
|
|
|
+ * @private
|
|
|
+ */
|
|
|
+
|
|
|
+ }, {
|
|
|
+ key: "_processQueue",
|
|
|
+ value: function _processQueue() {
|
|
|
+ if (this.isTransitioning) {
|
|
|
+ this._cancelMovement();
|
|
|
+ }
|
|
|
+
|
|
|
+ var hasSpeed = this.options.speed > 0;
|
|
|
+ var hasQueue = this._queue.length > 0;
|
|
|
+
|
|
|
+ if (hasQueue && hasSpeed && this.isInitialized) {
|
|
|
+ this._startTransitions(this._queue);
|
|
|
+ } else if (hasQueue) {
|
|
|
+ this._styleImmediately(this._queue);
|
|
|
+
|
|
|
+ this._dispatch(Shuffle.EventType.LAYOUT); // A call to layout happened, but none of the newly visible items will
|
|
|
+ // change position or the transition duration is zero, which will not trigger
|
|
|
+ // the transitionend event.
|
|
|
+
|
|
|
+ } else {
|
|
|
+ this._dispatch(Shuffle.EventType.LAYOUT);
|
|
|
+ } // Remove everything in the style queue
|
|
|
+
|
|
|
+
|
|
|
+ this._queue.length = 0;
|
|
|
+ }
|
|
|
+ /**
|
|
|
+ * Wait for each transition to finish, the emit the layout event.
|
|
|
+ * @param {Object[]} transitions Array of transition objects.
|
|
|
+ */
|
|
|
+
|
|
|
+ }, {
|
|
|
+ key: "_startTransitions",
|
|
|
+ value: function _startTransitions(transitions) {
|
|
|
+ var _this8 = this;
|
|
|
+
|
|
|
+ // Set flag that shuffle is currently in motion.
|
|
|
+ this.isTransitioning = true; // Create an array of functions to be called.
|
|
|
+
|
|
|
+ var callbacks = transitions.map(function (obj) {
|
|
|
+ return _this8._getTransitionFunction(obj);
|
|
|
+ });
|
|
|
+ arrayParallel(callbacks, this._movementFinished.bind(this));
|
|
|
+ }
|
|
|
+ }, {
|
|
|
+ key: "_cancelMovement",
|
|
|
+ value: function _cancelMovement() {
|
|
|
+ // Remove the transition end event for each listener.
|
|
|
+ this._transitions.forEach(cancelTransitionEnd); // Reset the array.
|
|
|
+
|
|
|
+
|
|
|
+ this._transitions.length = 0; // Show it's no longer active.
|
|
|
+
|
|
|
+ this.isTransitioning = false;
|
|
|
+ }
|
|
|
+ /**
|
|
|
+ * Apply styles without a transition.
|
|
|
+ * @param {Object[]} objects Array of transition objects.
|
|
|
+ * @private
|
|
|
+ */
|
|
|
+
|
|
|
+ }, {
|
|
|
+ key: "_styleImmediately",
|
|
|
+ value: function _styleImmediately(objects) {
|
|
|
+ if (objects.length) {
|
|
|
+ var elements = objects.map(function (obj) {
|
|
|
+ return obj.item.element;
|
|
|
+ });
|
|
|
+
|
|
|
+ Shuffle._skipTransitions(elements, function () {
|
|
|
+ objects.forEach(function (obj) {
|
|
|
+ obj.item.applyCss(obj.styles);
|
|
|
+ obj.callback();
|
|
|
+ });
|
|
|
+ });
|
|
|
+ }
|
|
|
+ }
|
|
|
+ }, {
|
|
|
+ key: "_movementFinished",
|
|
|
+ value: function _movementFinished() {
|
|
|
+ this._transitions.length = 0;
|
|
|
+ this.isTransitioning = false;
|
|
|
+
|
|
|
+ this._dispatch(Shuffle.EventType.LAYOUT);
|
|
|
+ }
|
|
|
+ /**
|
|
|
+ * The magic. This is what makes the plugin 'shuffle'
|
|
|
+ * @param {string|string[]|function(Element):boolean} [category] Category to filter by.
|
|
|
+ * Can be a function, string, or array of strings.
|
|
|
+ * @param {SortOptions} [sortOptions] A sort object which can sort the visible set
|
|
|
+ */
|
|
|
+
|
|
|
+ }, {
|
|
|
+ key: "filter",
|
|
|
+ value: function filter(category, sortOptions) {
|
|
|
+ if (!this.isEnabled) {
|
|
|
+ return;
|
|
|
+ }
|
|
|
+
|
|
|
+ if (!category || category && category.length === 0) {
|
|
|
+ category = Shuffle.ALL_ITEMS; // eslint-disable-line no-param-reassign
|
|
|
+ }
|
|
|
+
|
|
|
+ this._filter(category); // Shrink each hidden item
|
|
|
+
|
|
|
+
|
|
|
+ this._shrink(); // How many visible elements?
|
|
|
+
|
|
|
+
|
|
|
+ this._updateItemCount(); // Update transforms on visible elements so they will animate to their new positions.
|
|
|
+
|
|
|
+
|
|
|
+ this.sort(sortOptions);
|
|
|
+ }
|
|
|
+ /**
|
|
|
+ * Gets the visible elements, sorts them, and passes them to layout.
|
|
|
+ * @param {SortOptions} [sortOptions] The options object to pass to `sorter`.
|
|
|
+ */
|
|
|
+
|
|
|
+ }, {
|
|
|
+ key: "sort",
|
|
|
+ value: function sort() {
|
|
|
+ var sortOptions = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : this.lastSort;
|
|
|
+
|
|
|
+ if (!this.isEnabled) {
|
|
|
+ return;
|
|
|
+ }
|
|
|
+
|
|
|
+ this._resetCols();
|
|
|
+
|
|
|
+ var items = sorter(this._getFilteredItems(), sortOptions);
|
|
|
+
|
|
|
+ this._layout(items); // `_layout` always happens after `_shrink`, so it's safe to process the style
|
|
|
+ // queue here with styles from the shrink method.
|
|
|
+
|
|
|
+
|
|
|
+ this._processQueue(); // Adjust the height of the container.
|
|
|
+
|
|
|
+
|
|
|
+ this._setContainerSize();
|
|
|
+
|
|
|
+ this.lastSort = sortOptions;
|
|
|
+ }
|
|
|
+ /**
|
|
|
+ * Reposition everything.
|
|
|
+ * @param {boolean} [isOnlyLayout=false] If true, column and gutter widths won't be recalculated.
|
|
|
+ */
|
|
|
+
|
|
|
+ }, {
|
|
|
+ key: "update",
|
|
|
+ value: function update() {
|
|
|
+ var isOnlyLayout = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : false;
|
|
|
+
|
|
|
+ if (this.isEnabled) {
|
|
|
+ if (!isOnlyLayout) {
|
|
|
+ // Get updated colCount
|
|
|
+ this._setColumns();
|
|
|
+ } // Layout items
|
|
|
+
|
|
|
+
|
|
|
+ this.sort();
|
|
|
+ }
|
|
|
+ }
|
|
|
+ /**
|
|
|
+ * Use this instead of `update()` if you don't need the columns and gutters updated
|
|
|
+ * Maybe an image inside `shuffle` loaded (and now has a height), which means calculations
|
|
|
+ * could be off.
|
|
|
+ */
|
|
|
+
|
|
|
+ }, {
|
|
|
+ key: "layout",
|
|
|
+ value: function layout() {
|
|
|
+ this.update(true);
|
|
|
+ }
|
|
|
+ /**
|
|
|
+ * New items have been appended to shuffle. Mix them in with the current
|
|
|
+ * filter or sort status.
|
|
|
+ * @param {Element[]} newItems Collection of new items.
|
|
|
+ */
|
|
|
+
|
|
|
+ }, {
|
|
|
+ key: "add",
|
|
|
+ value: function add(newItems) {
|
|
|
+ var _this9 = this;
|
|
|
+
|
|
|
+ var items = arrayUnique(newItems).map(function (el) {
|
|
|
+ return new ShuffleItem(el);
|
|
|
+ }); // Add classes and set initial positions.
|
|
|
+
|
|
|
+ this._initItems(items); // Determine which items will go with the current filter.
|
|
|
+
|
|
|
+
|
|
|
+ this._resetCols();
|
|
|
+
|
|
|
+ var allItems = this._mergeNewItems(items);
|
|
|
+
|
|
|
+ var sortedItems = sorter(allItems, this.lastSort);
|
|
|
+
|
|
|
+ var allSortedItemsSet = this._filter(this.lastFilter, sortedItems);
|
|
|
+
|
|
|
+ var isNewItem = function isNewItem(item) {
|
|
|
+ return items.includes(item);
|
|
|
+ };
|
|
|
+
|
|
|
+ var applyHiddenState = function applyHiddenState(item) {
|
|
|
+ item.scale = ShuffleItem.Scale.HIDDEN;
|
|
|
+ item.isHidden = true;
|
|
|
+ item.applyCss(ShuffleItem.Css.HIDDEN.before);
|
|
|
+ item.applyCss(ShuffleItem.Css.HIDDEN.after);
|
|
|
+ }; // Layout all items again so that new items get positions.
|
|
|
+ // Synchonously apply positions.
|
|
|
+
|
|
|
+
|
|
|
+ var itemPositions = this._getNextPositions(allSortedItemsSet.visible);
|
|
|
+
|
|
|
+ allSortedItemsSet.visible.forEach(function (item, i) {
|
|
|
+ if (isNewItem(item)) {
|
|
|
+ item.point = itemPositions[i];
|
|
|
+ applyHiddenState(item);
|
|
|
+ item.applyCss(_this9.getStylesForTransition(item, {}));
|
|
|
+ }
|
|
|
+ });
|
|
|
+ allSortedItemsSet.hidden.forEach(function (item) {
|
|
|
+ if (isNewItem(item)) {
|
|
|
+ applyHiddenState(item);
|
|
|
+ }
|
|
|
+ }); // Cause layout so that the styles above are applied.
|
|
|
+
|
|
|
+ this.element.offsetWidth; // eslint-disable-line no-unused-expressions
|
|
|
+ // Add transition to each item.
|
|
|
+
|
|
|
+ this.setItemTransitions(items); // Update the list of items.
|
|
|
+
|
|
|
+ this.items = this._mergeNewItems(items); // Update layout/visibility of new and old items.
|
|
|
+
|
|
|
+ this.filter(this.lastFilter);
|
|
|
+ }
|
|
|
+ /**
|
|
|
+ * Disables shuffle from updating dimensions and layout on resize
|
|
|
+ */
|
|
|
+
|
|
|
+ }, {
|
|
|
+ key: "disable",
|
|
|
+ value: function disable() {
|
|
|
+ this.isEnabled = false;
|
|
|
+ }
|
|
|
+ /**
|
|
|
+ * Enables shuffle again
|
|
|
+ * @param {boolean} [isUpdateLayout=true] if undefined, shuffle will update columns and gutters
|
|
|
+ */
|
|
|
+
|
|
|
+ }, {
|
|
|
+ key: "enable",
|
|
|
+ value: function enable() {
|
|
|
+ var isUpdateLayout = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : true;
|
|
|
+ this.isEnabled = true;
|
|
|
+
|
|
|
+ if (isUpdateLayout) {
|
|
|
+ this.update();
|
|
|
+ }
|
|
|
+ }
|
|
|
+ /**
|
|
|
+ * Remove 1 or more shuffle items.
|
|
|
+ * @param {Element[]} elements An array containing one or more
|
|
|
+ * elements in shuffle
|
|
|
+ * @return {Shuffle} The shuffle instance.
|
|
|
+ */
|
|
|
+
|
|
|
+ }, {
|
|
|
+ key: "remove",
|
|
|
+ value: function remove(elements) {
|
|
|
+ var _this10 = this;
|
|
|
+
|
|
|
+ if (!elements.length) {
|
|
|
+ return;
|
|
|
+ }
|
|
|
+
|
|
|
+ var collection = arrayUnique(elements);
|
|
|
+ var oldItems = collection.map(function (element) {
|
|
|
+ return _this10.getItemByElement(element);
|
|
|
+ }).filter(function (item) {
|
|
|
+ return !!item;
|
|
|
+ });
|
|
|
+
|
|
|
+ var handleLayout = function handleLayout() {
|
|
|
+ _this10._disposeItems(oldItems); // Remove the collection in the callback
|
|
|
+
|
|
|
+
|
|
|
+ collection.forEach(function (element) {
|
|
|
+ element.parentNode.removeChild(element);
|
|
|
+ });
|
|
|
+
|
|
|
+ _this10._dispatch(Shuffle.EventType.REMOVED, {
|
|
|
+ collection: collection
|
|
|
+ });
|
|
|
+ }; // Hide collection first.
|
|
|
+
|
|
|
+
|
|
|
+ this._toggleFilterClasses({
|
|
|
+ visible: [],
|
|
|
+ hidden: oldItems
|
|
|
+ });
|
|
|
+
|
|
|
+ this._shrink(oldItems);
|
|
|
+
|
|
|
+ this.sort(); // Update the list of items here because `remove` could be called again
|
|
|
+ // with an item that is in the process of being removed.
|
|
|
+
|
|
|
+ this.items = this.items.filter(function (item) {
|
|
|
+ return !oldItems.includes(item);
|
|
|
+ });
|
|
|
+
|
|
|
+ this._updateItemCount();
|
|
|
+
|
|
|
+ this.once(Shuffle.EventType.LAYOUT, handleLayout);
|
|
|
+ }
|
|
|
+ /**
|
|
|
+ * Retrieve a shuffle item by its element.
|
|
|
+ * @param {Element} element Element to look for.
|
|
|
+ * @return {?ShuffleItem} A shuffle item or undefined if it's not found.
|
|
|
+ */
|
|
|
+
|
|
|
+ }, {
|
|
|
+ key: "getItemByElement",
|
|
|
+ value: function getItemByElement(element) {
|
|
|
+ return this.items.find(function (item) {
|
|
|
+ return item.element === element;
|
|
|
+ });
|
|
|
+ }
|
|
|
+ /**
|
|
|
+ * Dump the elements currently stored and reinitialize all child elements which
|
|
|
+ * match the `itemSelector`.
|
|
|
+ */
|
|
|
+
|
|
|
+ }, {
|
|
|
+ key: "resetItems",
|
|
|
+ value: function resetItems() {
|
|
|
+ var _this11 = this;
|
|
|
+
|
|
|
+ // Remove refs to current items.
|
|
|
+ this._disposeItems(this.items);
|
|
|
+
|
|
|
+ this.isInitialized = false; // Find new items in the DOM.
|
|
|
+
|
|
|
+ this.items = this._getItems(); // Set initial styles on the new items.
|
|
|
+
|
|
|
+ this._initItems(this.items);
|
|
|
+
|
|
|
+ this.once(Shuffle.EventType.LAYOUT, function () {
|
|
|
+ // Add transition to each item.
|
|
|
+ _this11.setItemTransitions(_this11.items);
|
|
|
+
|
|
|
+ _this11.isInitialized = true;
|
|
|
+ }); // Lay out all items.
|
|
|
+
|
|
|
+ this.filter(this.lastFilter);
|
|
|
+ }
|
|
|
+ /**
|
|
|
+ * Destroys shuffle, removes events, styles, and classes
|
|
|
+ */
|
|
|
+
|
|
|
+ }, {
|
|
|
+ key: "destroy",
|
|
|
+ value: function destroy() {
|
|
|
+ this._cancelMovement();
|
|
|
+
|
|
|
+ window.removeEventListener('resize', this._onResize); // Reset container styles
|
|
|
+
|
|
|
+ this.element.classList.remove('shuffle');
|
|
|
+ this.element.removeAttribute('style'); // Reset individual item styles
|
|
|
+
|
|
|
+ this._disposeItems(this.items);
|
|
|
+
|
|
|
+ this.items.length = 0;
|
|
|
+ this._transitions.length = 0; // Null DOM references
|
|
|
+
|
|
|
+ this.options.sizer = null;
|
|
|
+ this.element = null; // Set a flag so if a debounced resize has been triggered,
|
|
|
+ // it can first check if it is actually isDestroyed and not doing anything
|
|
|
+
|
|
|
+ this.isDestroyed = true;
|
|
|
+ this.isEnabled = false;
|
|
|
+ }
|
|
|
+ /**
|
|
|
+ * Returns the outer width of an element, optionally including its margins.
|
|
|
+ *
|
|
|
+ * There are a few different methods for getting the width of an element, none of
|
|
|
+ * which work perfectly for all Shuffle's use cases.
|
|
|
+ *
|
|
|
+ * 1. getBoundingClientRect() `left` and `right` properties.
|
|
|
+ * - Accounts for transform scaled elements, making it useless for Shuffle
|
|
|
+ * elements which have shrunk.
|
|
|
+ * 2. The `offsetWidth` property.
|
|
|
+ * - This value stays the same regardless of the elements transform property,
|
|
|
+ * however, it does not return subpixel values.
|
|
|
+ * 3. getComputedStyle()
|
|
|
+ * - This works great Chrome, Firefox, Safari, but IE<=11 does not include
|
|
|
+ * padding and border when box-sizing: border-box is set, requiring a feature
|
|
|
+ * test and extra work to add the padding back for IE and other browsers which
|
|
|
+ * follow the W3C spec here.
|
|
|
+ *
|
|
|
+ * @param {Element} element The element.
|
|
|
+ * @param {boolean} [includeMargins=false] Whether to include margins.
|
|
|
+ * @return {{width: number, height: number}} The width and height.
|
|
|
+ */
|
|
|
+
|
|
|
+ }], [{
|
|
|
+ key: "getSize",
|
|
|
+ value: function getSize(element) {
|
|
|
+ var includeMargins = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : false;
|
|
|
+ // Store the styles so that they can be used by others without asking for it again.
|
|
|
+ var styles = window.getComputedStyle(element, null);
|
|
|
+ var width = getNumberStyle(element, 'width', styles);
|
|
|
+ var height = getNumberStyle(element, 'height', styles);
|
|
|
+
|
|
|
+ if (includeMargins) {
|
|
|
+ var marginLeft = getNumberStyle(element, 'marginLeft', styles);
|
|
|
+ var marginRight = getNumberStyle(element, 'marginRight', styles);
|
|
|
+ var marginTop = getNumberStyle(element, 'marginTop', styles);
|
|
|
+ var marginBottom = getNumberStyle(element, 'marginBottom', styles);
|
|
|
+ width += marginLeft + marginRight;
|
|
|
+ height += marginTop + marginBottom;
|
|
|
+ }
|
|
|
+
|
|
|
+ return {
|
|
|
+ width: width,
|
|
|
+ height: height
|
|
|
+ };
|
|
|
+ }
|
|
|
+ /**
|
|
|
+ * Change a property or execute a function which will not have a transition
|
|
|
+ * @param {Element[]} elements DOM elements that won't be transitioned.
|
|
|
+ * @param {function} callback A function which will be called while transition
|
|
|
+ * is set to 0ms.
|
|
|
+ * @private
|
|
|
+ */
|
|
|
+
|
|
|
+ }, {
|
|
|
+ key: "_skipTransitions",
|
|
|
+ value: function _skipTransitions(elements, callback) {
|
|
|
+ var zero = '0ms'; // Save current duration and delay.
|
|
|
+
|
|
|
+ var data = elements.map(function (element) {
|
|
|
+ var style = element.style;
|
|
|
+ var duration = style.transitionDuration;
|
|
|
+ var delay = style.transitionDelay; // Set the duration to zero so it happens immediately
|
|
|
+
|
|
|
+ style.transitionDuration = zero;
|
|
|
+ style.transitionDelay = zero;
|
|
|
+ return {
|
|
|
+ duration: duration,
|
|
|
+ delay: delay
|
|
|
+ };
|
|
|
+ });
|
|
|
+ callback(); // Cause forced synchronous layout.
|
|
|
+
|
|
|
+ elements[0].offsetWidth; // eslint-disable-line no-unused-expressions
|
|
|
+ // Put the duration back
|
|
|
+
|
|
|
+ elements.forEach(function (element, i) {
|
|
|
+ element.style.transitionDuration = data[i].duration;
|
|
|
+ element.style.transitionDelay = data[i].delay;
|
|
|
+ });
|
|
|
+ }
|
|
|
+ }]);
|
|
|
+
|
|
|
+ return Shuffle;
|
|
|
+ }(tinyEmitter);
|
|
|
+
|
|
|
+ Shuffle.ShuffleItem = ShuffleItem;
|
|
|
+ Shuffle.ALL_ITEMS = 'all';
|
|
|
+ Shuffle.FILTER_ATTRIBUTE_KEY = 'groups';
|
|
|
+ /** @enum {string} */
|
|
|
+
|
|
|
+ Shuffle.EventType = {
|
|
|
+ LAYOUT: 'shuffle:layout',
|
|
|
+ REMOVED: 'shuffle:removed'
|
|
|
+ };
|
|
|
+ /** @enum {string} */
|
|
|
+
|
|
|
+ Shuffle.Classes = Classes;
|
|
|
+ /** @enum {string} */
|
|
|
+
|
|
|
+ Shuffle.FilterMode = {
|
|
|
+ ANY: 'any',
|
|
|
+ ALL: 'all'
|
|
|
+ }; // Overrideable options
|
|
|
+
|
|
|
+ Shuffle.options = {
|
|
|
+ // Initial filter group.
|
|
|
+ group: Shuffle.ALL_ITEMS,
|
|
|
+ // Transition/animation speed (milliseconds).
|
|
|
+ speed: 250,
|
|
|
+ // CSS easing function to use.
|
|
|
+ easing: 'cubic-bezier(0.4, 0.0, 0.2, 1)',
|
|
|
+ // e.g. '.picture-item'.
|
|
|
+ itemSelector: '*',
|
|
|
+ // Element or selector string. Use an element to determine the size of columns
|
|
|
+ // and gutters.
|
|
|
+ sizer: null,
|
|
|
+ // A static number or function that tells the plugin how wide the gutters
|
|
|
+ // between columns are (in pixels).
|
|
|
+ gutterWidth: 0,
|
|
|
+ // A static number or function that returns a number which tells the plugin
|
|
|
+ // how wide the columns are (in pixels).
|
|
|
+ columnWidth: 0,
|
|
|
+ // If your group is not json, and is comma delimeted, you could set delimiter
|
|
|
+ // to ','.
|
|
|
+ delimiter: null,
|
|
|
+ // Useful for percentage based heights when they might not always be exactly
|
|
|
+ // the same (in pixels).
|
|
|
+ buffer: 0,
|
|
|
+ // Reading the width of elements isn't precise enough and can cause columns to
|
|
|
+ // jump between values.
|
|
|
+ columnThreshold: 0.01,
|
|
|
+ // Shuffle can be isInitialized with a sort object. It is the same object
|
|
|
+ // given to the sort method.
|
|
|
+ initialSort: null,
|
|
|
+ // By default, shuffle will throttle resize events. This can be changed or
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+ // removed.
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+ throttle: throttleit,
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+ // How often shuffle can be called on resize (in milliseconds).
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+ throttleTime: 300,
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+ // Transition delay offset for each item in milliseconds.
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+ staggerAmount: 15,
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+ // Maximum stagger delay in milliseconds.
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+ staggerAmountMax: 150,
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+ // Whether to use transforms or absolute positioning.
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+ useTransforms: true,
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+ // Affects using an array with filter. e.g. `filter(['one', 'two'])`. With "any",
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+ // the element passes the test if any of its groups are in the array. With "all",
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+ // the element only passes if all groups are in the array.
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+ filterMode: Shuffle.FilterMode.ANY,
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+ // Attempt to center grid items in each row.
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+ isCentered: false,
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+ // Whether to round pixel values used in translate(x, y). This usually avoids
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+ // blurriness.
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+ roundTransforms: true
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+ };
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+ Shuffle.Point = Point;
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+ Shuffle.Rect = Rect; // Expose for testing. Hack at your own risk.
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+
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+ Shuffle.__sorter = sorter;
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+ Shuffle.__getColumnSpan = getColumnSpan;
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+ Shuffle.__getAvailablePositions = getAvailablePositions;
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+ Shuffle.__getShortColumn = getShortColumn;
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+ Shuffle.__getCenteredPositions = getCenteredPositions;
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+
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+ return Shuffle;
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+
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+}));
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+//# sourceMappingURL=shuffle.js.map
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hossainemruz