491 lines
18 KiB
JavaScript
491 lines
18 KiB
JavaScript
/**!
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* lg-thumbnail.js | 0.0.4 | August 9th 2016
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* http://sachinchoolur.github.io/lg-thumbnail.js
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* Copyright (c) 2016 Sachin N;
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* @license Apache 2.0
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*/(function(f){if(typeof exports==="object"&&typeof module!=="undefined"){module.exports=f()}else if(typeof define==="function"&&define.amd){define([],f)}else{var g;if(typeof window!=="undefined"){g=window}else if(typeof global!=="undefined"){g=global}else if(typeof self!=="undefined"){g=self}else{g=this}g.LgThumbnail = f()}})(function(){var define,module,exports;return (function e(t,n,r){function s(o,u){if(!n[o]){if(!t[o]){var a=typeof require=="function"&&require;if(!u&&a)return a(o,!0);if(i)return i(o,!0);var f=new Error("Cannot find module '"+o+"'");throw f.code="MODULE_NOT_FOUND",f}var l=n[o]={exports:{}};t[o][0].call(l.exports,function(e){var n=t[o][1][e];return s(n?n:e)},l,l.exports,e,t,n,r)}return n[o].exports}var i=typeof require=="function"&&require;for(var o=0;o<r.length;o++)s(r[o]);return s})({1:[function(require,module,exports){
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(function (global, factory) {
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if (typeof define === "function" && define.amd) {
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define([], factory);
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} else if (typeof exports !== "undefined") {
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factory();
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} else {
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var mod = {
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exports: {}
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};
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factory();
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global.lgThumbnail = mod.exports;
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}
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})(this, function () {
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'use strict';
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var _extends = Object.assign || function (target) {
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for (var i = 1; i < arguments.length; i++) {
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var source = arguments[i];
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for (var key in source) {
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if (Object.prototype.hasOwnProperty.call(source, key)) {
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target[key] = source[key];
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}
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}
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}
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return target;
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};
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var thumbnailDefaults = {
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thumbnail: true,
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animateThumb: true,
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currentPagerPosition: 'middle',
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thumbWidth: 100,
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thumbContHeight: 100,
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thumbMargin: 5,
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exThumbImage: false,
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showThumbByDefault: true,
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toggleThumb: true,
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pullCaptionUp: true,
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enableThumbDrag: true,
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enableThumbSwipe: true,
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swipeThreshold: 50,
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loadYoutubeThumbnail: true,
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youtubeThumbSize: 1,
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loadVimeoThumbnail: true,
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vimeoThumbSize: 'thumbnail_small',
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loadDailymotionThumbnail: true
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};
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var Thumbnail = function Thumbnail(element) {
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this.el = element;
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this.core = window.lgData[this.el.getAttribute('lg-uid')];
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this.core.s = _extends({}, thumbnailDefaults, this.core.s);
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this.thumbOuter = null;
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this.thumbOuterWidth = 0;
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this.thumbTotalWidth = this.core.items.length * (this.core.s.thumbWidth + this.core.s.thumbMargin);
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this.thumbIndex = this.core.index;
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// Thumbnail animation value
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this.left = 0;
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this.init();
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return this;
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};
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Thumbnail.prototype.init = function () {
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var _this = this;
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if (this.core.s.thumbnail && this.core.items.length > 1) {
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if (this.core.s.showThumbByDefault) {
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setTimeout(function () {
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utils.addClass(_this.core.outer, 'lg-thumb-open');
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}, 700);
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}
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if (this.core.s.pullCaptionUp) {
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utils.addClass(this.core.outer, 'lg-pull-caption-up');
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}
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this.build();
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if (this.core.s.animateThumb) {
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if (this.core.s.enableThumbDrag && !this.core.isTouch && this.core.doCss()) {
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this.enableThumbDrag();
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}
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if (this.core.s.enableThumbSwipe && this.core.isTouch && this.core.doCss()) {
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this.enableThumbSwipe();
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}
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this.thumbClickable = false;
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} else {
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this.thumbClickable = true;
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}
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this.toggle();
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this.thumbkeyPress();
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}
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};
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Thumbnail.prototype.build = function () {
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var _this = this;
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var thumbList = '';
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var vimeoErrorThumbSize = '';
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var $thumb;
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var html = '<div class="lg-thumb-outer">' + '<div class="lg-thumb group">' + '</div>' + '</div>';
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switch (this.core.s.vimeoThumbSize) {
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case 'thumbnail_large':
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vimeoErrorThumbSize = '640';
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break;
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case 'thumbnail_medium':
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vimeoErrorThumbSize = '200x150';
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break;
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case 'thumbnail_small':
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vimeoErrorThumbSize = '100x75';
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}
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utils.addClass(_this.core.outer, 'lg-has-thumb');
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_this.core.outer.querySelector('.lg').insertAdjacentHTML('beforeend', html);
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_this.thumbOuter = _this.core.outer.querySelector('.lg-thumb-outer');
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_this.thumbOuterWidth = _this.thumbOuter.offsetWidth;
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if (_this.core.s.animateThumb) {
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_this.core.outer.querySelector('.lg-thumb').style.width = _this.thumbTotalWidth + 'px';
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_this.core.outer.querySelector('.lg-thumb').style.position = 'relative';
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}
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if (this.core.s.animateThumb) {
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_this.thumbOuter.style.height = _this.core.s.thumbContHeight + 'px';
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}
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function getThumb(src, thumb, index) {
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var isVideo = _this.core.isVideo(src, index) || {};
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var thumbImg;
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var vimeoId = '';
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if (isVideo.youtube || isVideo.vimeo || isVideo.dailymotion) {
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if (isVideo.youtube) {
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if (_this.core.s.loadYoutubeThumbnail) {
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thumbImg = '//img.youtube.com/vi/' + isVideo.youtube[1] + '/' + _this.core.s.youtubeThumbSize + '.jpg';
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} else {
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thumbImg = thumb;
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}
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} else if (isVideo.vimeo) {
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if (_this.core.s.loadVimeoThumbnail) {
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thumbImg = '//i.vimeocdn.com/video/error_' + vimeoErrorThumbSize + '.jpg';
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vimeoId = isVideo.vimeo[1];
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} else {
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thumbImg = thumb;
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}
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} else if (isVideo.dailymotion) {
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if (_this.core.s.loadDailymotionThumbnail) {
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thumbImg = '//www.dailymotion.com/thumbnail/video/' + isVideo.dailymotion[1];
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} else {
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thumbImg = thumb;
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}
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}
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} else {
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thumbImg = thumb;
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}
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thumbList += '<div data-vimeo-id="' + vimeoId + '" class="lg-thumb-item" style="width:' + _this.core.s.thumbWidth + 'px; margin-right: ' + _this.core.s.thumbMargin + 'px"><img src="' + thumbImg + '" /></div>';
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vimeoId = '';
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}
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if (_this.core.s.dynamic) {
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for (var j = 0; j < _this.core.s.dynamicEl.length; j++) {
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getThumb(_this.core.s.dynamicEl[j].src, _this.core.s.dynamicEl[j].thumb, j);
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}
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} else {
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for (var i = 0; i < _this.core.items.length; i++) {
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if (!_this.core.s.exThumbImage) {
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getThumb(_this.core.items[i].getAttribute('href') || _this.core.items[i].getAttribute('data-src'), _this.core.items[i].querySelector('img').getAttribute('src'), i);
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} else {
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getThumb(_this.core.items[i].getAttribute('href') || _this.core.items[i].getAttribute('data-src'), _this.core.items[i].getAttribute(_this.core.s.exThumbImage), i);
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}
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}
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}
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_this.core.outer.querySelector('.lg-thumb').innerHTML = thumbList;
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$thumb = _this.core.outer.querySelectorAll('.lg-thumb-item');
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for (var n = 0; n < $thumb.length; n++) {
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/*jshint loopfunc: true */
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(function (index) {
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var $this = $thumb[index];
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var vimeoVideoId = $this.getAttribute('data-vimeo-id');
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if (vimeoVideoId) {
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window['lgJsonP' + _this.el.getAttribute('lg-uid') + '' + n] = function (content) {
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$this.querySelector('img').setAttribute('src', content[0][_this.core.s.vimeoThumbSize]);
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};
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var script = document.createElement('script');
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script.className = 'lg-script';
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script.src = '//www.vimeo.com/api/v2/video/' + vimeoVideoId + '.json?callback=lgJsonP' + _this.el.getAttribute('lg-uid') + '' + n;
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document.body.appendChild(script);
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}
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})(n);
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}
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// manage active class for thumbnail
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utils.addClass($thumb[_this.core.index], 'active');
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utils.on(_this.core.el, 'onBeforeSlide.lgtm', function () {
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for (var j = 0; j < $thumb.length; j++) {
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utils.removeClass($thumb[j], 'active');
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}
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utils.addClass($thumb[_this.core.index], 'active');
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});
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for (var k = 0; k < $thumb.length; k++) {
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/*jshint loopfunc: true */
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(function (index) {
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utils.on($thumb[index], 'click.lg touchend.lg', function () {
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setTimeout(function () {
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// In IE9 and bellow touch does not support
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// Go to slide if browser does not support css transitions
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if (_this.thumbClickable && !_this.core.lgBusy || !_this.core.doCss()) {
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_this.core.index = index;
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_this.core.slide(_this.core.index, false, true);
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}
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}, 50);
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});
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})(k);
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}
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utils.on(_this.core.el, 'onBeforeSlide.lgtm', function () {
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_this.animateThumb(_this.core.index);
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});
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utils.on(window, 'resize.lgthumb orientationchange.lgthumb', function () {
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setTimeout(function () {
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_this.animateThumb(_this.core.index);
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_this.thumbOuterWidth = _this.thumbOuter.offsetWidth;
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}, 200);
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});
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};
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Thumbnail.prototype.setTranslate = function (value) {
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utils.setVendor(this.core.outer.querySelector('.lg-thumb'), 'Transform', 'translate3d(-' + value + 'px, 0px, 0px)');
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};
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Thumbnail.prototype.animateThumb = function (index) {
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var $thumb = this.core.outer.querySelector('.lg-thumb');
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if (this.core.s.animateThumb) {
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var position;
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switch (this.core.s.currentPagerPosition) {
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case 'left':
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position = 0;
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break;
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case 'middle':
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position = this.thumbOuterWidth / 2 - this.core.s.thumbWidth / 2;
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break;
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case 'right':
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position = this.thumbOuterWidth - this.core.s.thumbWidth;
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}
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this.left = (this.core.s.thumbWidth + this.core.s.thumbMargin) * index - 1 - position;
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if (this.left > this.thumbTotalWidth - this.thumbOuterWidth) {
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this.left = this.thumbTotalWidth - this.thumbOuterWidth;
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}
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if (this.left < 0) {
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this.left = 0;
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}
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if (this.core.lGalleryOn) {
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if (!utils.hasClass($thumb, 'on')) {
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utils.setVendor(this.core.outer.querySelector('.lg-thumb'), 'TransitionDuration', this.core.s.speed + 'ms');
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}
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if (!this.core.doCss()) {
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$thumb.style.left = -this.left + 'px';
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}
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} else {
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if (!this.core.doCss()) {
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$thumb.style.left = -this.left + 'px';
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}
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}
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this.setTranslate(this.left);
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}
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};
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// Enable thumbnail dragging and swiping
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Thumbnail.prototype.enableThumbDrag = function () {
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var _this = this;
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var startCoords = 0;
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var endCoords = 0;
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var isDraging = false;
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var isMoved = false;
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var tempLeft = 0;
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utils.addClass(_this.thumbOuter, 'lg-grab');
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utils.on(_this.core.outer.querySelector('.lg-thumb'), 'mousedown.lgthumb', function (e) {
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if (_this.thumbTotalWidth > _this.thumbOuterWidth) {
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// execute only on .lg-object
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e.preventDefault();
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startCoords = e.pageX;
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isDraging = true;
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// ** Fix for webkit cursor issue https://code.google.com/p/chromium/issues/detail?id=26723
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_this.core.outer.scrollLeft += 1;
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_this.core.outer.scrollLeft -= 1;
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// *
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_this.thumbClickable = false;
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utils.removeClass(_this.thumbOuter, 'lg-grab');
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utils.addClass(_this.thumbOuter, 'lg-grabbing');
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}
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});
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utils.on(window, 'mousemove.lgthumb', function (e) {
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if (isDraging) {
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tempLeft = _this.left;
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isMoved = true;
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endCoords = e.pageX;
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utils.addClass(_this.thumbOuter, 'lg-dragging');
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tempLeft = tempLeft - (endCoords - startCoords);
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if (tempLeft > _this.thumbTotalWidth - _this.thumbOuterWidth) {
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tempLeft = _this.thumbTotalWidth - _this.thumbOuterWidth;
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}
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if (tempLeft < 0) {
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tempLeft = 0;
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}
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// move current slide
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_this.setTranslate(tempLeft);
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}
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});
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utils.on(window, 'mouseup.lgthumb', function () {
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if (isMoved) {
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isMoved = false;
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utils.removeClass(_this.thumbOuter, 'lg-dragging');
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_this.left = tempLeft;
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if (Math.abs(endCoords - startCoords) < _this.core.s.swipeThreshold) {
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_this.thumbClickable = true;
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}
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} else {
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_this.thumbClickable = true;
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}
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if (isDraging) {
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isDraging = false;
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utils.removeClass(_this.thumbOuter, 'lg-grabbing');
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utils.addClass(_this.thumbOuter, 'lg-grab');
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}
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});
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};
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Thumbnail.prototype.enableThumbSwipe = function () {
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var _this = this;
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var startCoords = 0;
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var endCoords = 0;
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var isMoved = false;
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var tempLeft = 0;
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utils.on(_this.core.outer.querySelector('.lg-thumb'), 'touchstart.lg', function (e) {
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if (_this.thumbTotalWidth > _this.thumbOuterWidth) {
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e.preventDefault();
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startCoords = e.targetTouches[0].pageX;
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_this.thumbClickable = false;
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}
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});
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utils.on(_this.core.outer.querySelector('.lg-thumb'), 'touchmove.lg', function (e) {
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if (_this.thumbTotalWidth > _this.thumbOuterWidth) {
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e.preventDefault();
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endCoords = e.targetTouches[0].pageX;
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isMoved = true;
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utils.addClass(_this.thumbOuter, 'lg-dragging');
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tempLeft = _this.left;
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tempLeft = tempLeft - (endCoords - startCoords);
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if (tempLeft > _this.thumbTotalWidth - _this.thumbOuterWidth) {
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tempLeft = _this.thumbTotalWidth - _this.thumbOuterWidth;
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}
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if (tempLeft < 0) {
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tempLeft = 0;
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}
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// move current slide
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_this.setTranslate(tempLeft);
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}
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});
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utils.on(_this.core.outer.querySelector('.lg-thumb'), 'touchend.lg', function () {
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if (_this.thumbTotalWidth > _this.thumbOuterWidth) {
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if (isMoved) {
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isMoved = false;
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utils.removeClass(_this.thumbOuter, 'lg-dragging');
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if (Math.abs(endCoords - startCoords) < _this.core.s.swipeThreshold) {
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_this.thumbClickable = true;
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}
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_this.left = tempLeft;
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} else {
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_this.thumbClickable = true;
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}
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} else {
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_this.thumbClickable = true;
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}
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});
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};
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Thumbnail.prototype.toggle = function () {
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var _this = this;
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if (_this.core.s.toggleThumb) {
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utils.addClass(_this.core.outer, 'lg-can-toggle');
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_this.thumbOuter.insertAdjacentHTML('beforeend', '<span class="lg-toggle-thumb lg-icon"></span>');
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utils.on(_this.core.outer.querySelector('.lg-toggle-thumb'), 'click.lg', function () {
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if (utils.hasClass(_this.core.outer, 'lg-thumb-open')) {
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utils.removeClass(_this.core.outer, 'lg-thumb-open');
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} else {
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utils.addClass(_this.core.outer, 'lg-thumb-open');
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}
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});
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}
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};
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Thumbnail.prototype.thumbkeyPress = function () {
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var _this = this;
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utils.on(window, 'keydown.lgthumb', function (e) {
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if (e.keyCode === 38) {
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e.preventDefault();
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utils.addClass(_this.core.outer, 'lg-thumb-open');
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} else if (e.keyCode === 40) {
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e.preventDefault();
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utils.removeClass(_this.core.outer, 'lg-thumb-open');
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}
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});
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};
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Thumbnail.prototype.destroy = function () {
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if (this.core.s.thumbnail && this.core.items.length > 1) {
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utils.off(window, '.lgthumb');
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this.thumbOuter.parentNode.removeChild(this.thumbOuter);
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utils.removeClass(this.core.outer, 'lg-has-thumb');
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var lgScript = document.getElementsByClassName('lg-script');
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while (lgScript[0]) {
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lgScript[0].parentNode.removeChild(lgScript[0]);
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}
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}
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};
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window.lgModules.thumbnail = Thumbnail;
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});
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},{}]},{},[1])(1)
|
|
}); |