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2183 lines
66 KiB
JavaScript
2183 lines
66 KiB
JavaScript
(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.Shuffle = factory());
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}(this, (function () { 'use strict';
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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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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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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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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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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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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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return _setPrototypeOf(o, p);
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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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return self;
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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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return _assertThisInitialized(self);
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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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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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(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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return this;
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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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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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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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return this;
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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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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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// Remove event from queue to prevent memory leak
|
|
// 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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(liveEvents.length)
|
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? e[name] = liveEvents
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: delete e[name];
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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 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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var matchesSelector = match;
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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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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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var throttleit = throttle;
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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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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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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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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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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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var pending = fns && fns.length;
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if (!pending) return callback(null, []);
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var finished = false;
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var results = new Array(pending);
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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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function maybeDone(i) {
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return function (err, result) {
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if (finished) return;
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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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results[i] = result;
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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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function noop() {}
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/**
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* Always returns a numeric value, given a value. Logic from jQuery's `isNumeric`.
|
|
* @param {*} value Possibly numeric value.
|
|
* @return {number} `value` or zero if `value` isn't numeric.
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|
*/
|
|
function getNumber(value) {
|
|
return parseFloat(value) || 0;
|
|
}
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|
|
var Point =
|
|
/*#__PURE__*/
|
|
function () {
|
|
/**
|
|
* Represents a coordinate pair.
|
|
* @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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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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_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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return Point;
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}();
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|
var Rect =
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/*#__PURE__*/
|
|
function () {
|
|
/**
|
|
* Class for representing rectangular regions.
|
|
* 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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this.id = id;
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/** @type {number} */
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this.left = x;
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/** @type {number} */
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this.top = y;
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/** @type {number} */
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this.width = w;
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/** @type {number} */
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this.height = h;
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|
}
|
|
/**
|
|
* Returns whether two rectangles intersect.
|
|
* @param {Rect} a A Rectangle.
|
|
* @param {Rect} b A Rectangle.
|
|
* @return {boolean} Whether a and b intersect.
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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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return Rect;
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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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var id$1 = 0;
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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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id$1 += 1;
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this.id = id$1;
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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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this.isVisible = true;
|
|
/**
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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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this.isHidden = false;
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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) {
|
|
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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|
key: "removeClasses",
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|
value: function removeClasses(classes) {
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|
var _this2 = this;
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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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|
key: "applyCss",
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|
value: function applyCss(obj) {
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|
var _this3 = this;
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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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|
key: "dispose",
|
|
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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|
|
return ShuffleItem;
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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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'will-change': '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: {
|
|
transitionDelay: ''
|
|
}
|
|
},
|
|
HIDDEN: {
|
|
before: {
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|
opacity: 0
|
|
},
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|
after: {
|
|
visibility: 'hidden',
|
|
transitionDelay: ''
|
|
}
|
|
}
|
|
};
|
|
ShuffleItem.Scale = {
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|
VISIBLE: 1,
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|
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.
|
|
|
|
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$2 = 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$2;
|
|
id$2 += 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), 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 {Object} [sortObj] A sort object which can sort the visible set
|
|
*/
|
|
|
|
}, {
|
|
key: "filter",
|
|
value: function filter(category, sortObj) {
|
|
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(sortObj);
|
|
}
|
|
/**
|
|
* Gets the visible elements, sorts them, and passes them to layout.
|
|
* @param {Object} [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
|
|
// removed.
|
|
throttle: throttleit,
|
|
// How often shuffle can be called on resize (in milliseconds).
|
|
throttleTime: 300,
|
|
// Transition delay offset for each item in milliseconds.
|
|
staggerAmount: 15,
|
|
// Maximum stagger delay in milliseconds.
|
|
staggerAmountMax: 150,
|
|
// Whether to use transforms or absolute positioning.
|
|
useTransforms: true,
|
|
// Affects using an array with filter. e.g. `filter(['one', 'two'])`. With "any",
|
|
// the element passes the test if any of its groups are in the array. With "all",
|
|
// the element only passes if all groups are in the array.
|
|
filterMode: Shuffle.FilterMode.ANY,
|
|
// Attempt to center grid items in each row.
|
|
isCentered: false,
|
|
// Whether to round pixel values used in translate(x, y). This usually avoids
|
|
// blurriness.
|
|
roundTransforms: true
|
|
};
|
|
Shuffle.Point = Point;
|
|
Shuffle.Rect = Rect; // Expose for testing. Hack at your own risk.
|
|
|
|
Shuffle.__sorter = sorter;
|
|
Shuffle.__getColumnSpan = getColumnSpan;
|
|
Shuffle.__getAvailablePositions = getAvailablePositions;
|
|
Shuffle.__getShortColumn = getShortColumn;
|
|
Shuffle.__getCenteredPositions = getCenteredPositions;
|
|
|
|
return Shuffle;
|
|
|
|
})));
|
|
//# sourceMappingURL=shuffle.js.map
|