viewer 插件的应用与修改(查看图片并轮播)

源站:http://fengyuanchen.github.io/viewer/

应用:


html: 

源码上是正常排列的图片,也可以直接在相似结构的轮播图上查看图片

p标签为根据需求加的图片标题,如果有图片标题此为标准html结构

<div id="galley" >


 </div>

js:

var galley = document.getElementById('galley');

            if (galley) {

                var viewer = new Viewer(galley, {

                    url: 'data-original',

                    navbar: false,

                    rotatable: false,

                    scalable: false,

                    title: true,

                    tooltip: true,

                    loop: false,

                    minZoomRatio: 0.1,

                    maxZoomRatio: 3,

                    viewed: function (e) {

                        // 根据需要调整左右箭头等工具的位置

                        var clientH;

                        clientH = $(window).height() / 2;

                        $('.viewer-toolbar .viewer-prev').each(function (i,item) {

                            $(item).css('bottom', clientH);

                        })

                        $('.viewer-toolbar .viewer-next').each(function (i, item) {

                            $(item).css('bottom', clientH);

                        })

                        window.onresize = function () {

                            clientH = $(window).height() / 2;

                            $('.viewer-toolbar .viewer-prev').each(function (i, item) {

                                $(item).css('bottom', clientH);

                            })

                            $('.viewer-toolbar .viewer-next').each(function (i, item) {

                                $(item).css('bottom', clientH);

                            })

                        }

                    }

                });

            };

基础效果:



自己写的时候需求增加,所以更改了一点源码,直接贴改过的viewer.js

/*! * Viewer.js v1.1.0 * https://fengyuanchen.github.io/viewerjs * * Copyright 2015-present Chen Fengyuan * Released under the MIT license * * Date: 2018-05-27T07:33:19.361Z */(function (global, factory) { typeof exports === 'object' && typeof module !== 'undefined' ? module.exports = factory() : typeof define === 'function' && define.amd ? define(factory) : (global.Viewer = factory());}(this, (function () { 'use strict'; var DEFAULTS = { // Enable inline mode inline: false, // Show the button on the top-right of the viewer button: true, // Show the navbar navbar: true, // Show the title title: true, // Show the toolbar toolbar: true, // Show the tooltip with image ratio (percentage) when zoom in or zoom out tooltip: true, // Enable to move the image movable: true, // Enable to zoom the image zoomable: true, // Enable to rotate the image rotatable: true, // Enable to scale the image scalable: true, // Enable CSS3 Transition for some special elements transition: true, // Enable to request fullscreen when play fullscreen: true, // The amount of time to delay between automatically cycling an image when playing. interval: 5000, // Enable keyboard support keyboard: true, // Enable a modal backdrop, specify `static` for a backdrop which doesn't close the modal on click backdrop: true, // Indicate if show a loading spinner when load image or not. loading: true, // Indicate if enable loop viewing or not. loop: true, // Min width of the viewer in inline mode minWidth: 200, // Min height of the viewer in inline mode minHeight: 100, // Define the ratio when zoom the image by wheeling mouse zoomRatio: 0.1, // Define the min ratio of the image when zoom out minZoomRatio: 0.01, // Define the max ratio of the image when zoom in maxZoomRatio: 100, // Define the CSS `z-index` value of viewer in modal mode. zIndex: 2015, // Define the CSS `z-index` value of viewer in inline mode. zIndexInline: 0, // Define where to get the original image URL for viewing // Type: String (an image attribute) or Function (should return an image URL) url: 'src', // Define where to put the viewer in modal mode. // Type: String | Element container: 'body', // Filter the images for viewing. // Type: Function (return true if the image is viewable) filter: null, // Event shortcuts ready: null, show: null, shown: null, hide: null, hidden: null, view: null, viewed: null, zoom: null, zoomed: null }; var TEMPLATE = '

' + '

' + '

' + '

' + '

' + '

' + '

' + '

' + '

' + '

' + '

' + '

' + '

';  var IN_BROWSER = typeof window !== 'undefined';  var WINDOW = IN_BROWSER ? window : {};  var NAMESPACE = 'viewer';  // Actions  var ACTION_MOVE = 'move';  var ACTION_SWITCH = 'switch';  var ACTION_ZOOM = 'zoom';  // Classes  var CLASS_ACTIVE = NAMESPACE + '-active';  var CLASS_CLOSE = NAMESPACE + '-close';  var CLASS_FADE = NAMESPACE + '-fade';  var CLASS_FIXED = NAMESPACE + '-fixed';  var CLASS_FULLSCREEN = NAMESPACE + '-fullscreen';  var CLASS_FULLSCREEN_EXIT = NAMESPACE + '-fullscreen-exit';  var CLASS_HIDE = NAMESPACE + '-hide';  var CLASS_HIDE_MD_DOWN = NAMESPACE + '-hide-md-down';  var CLASS_HIDE_SM_DOWN = NAMESPACE + '-hide-sm-down';  var CLASS_HIDE_XS_DOWN = NAMESPACE + '-hide-xs-down';  var CLASS_IN = NAMESPACE + '-in';  var CLASS_INVISIBLE = NAMESPACE + '-invisible';  var CLASS_LOADING = NAMESPACE + '-loading';  var CLASS_MOVE = NAMESPACE + '-move';  var CLASS_OPEN = NAMESPACE + '-open';  var CLASS_SHOW = NAMESPACE + '-show';  var CLASS_TRANSITION = NAMESPACE + '-transition';  // Events  var EVENT_READY = 'ready';  var EVENT_SHOW = 'show';  var EVENT_SHOWN = 'shown';  var EVENT_HIDE = 'hide';  var EVENT_HIDDEN = 'hidden';  var EVENT_VIEW = 'view';  var EVENT_VIEWED = 'viewed';  var EVENT_ZOOM = 'zoom';  var EVENT_ZOOMED = 'zoomed';  var EVENT_CLICK = 'click';  var EVENT_DRAG_START = 'dragstart';  var EVENT_KEY_DOWN = 'keydown';  var EVENT_LOAD = 'load';  var EVENT_POINTER_DOWN = WINDOW.PointerEvent ? 'pointerdown' : 'touchstart mousedown';  var EVENT_POINTER_MOVE = WINDOW.PointerEvent ? 'pointermove' : 'touchmove mousemove';  var EVENT_POINTER_UP = WINDOW.PointerEvent ? 'pointerup pointercancel' : 'touchend touchcancel mouseup';  var EVENT_RESIZE = 'resize';  var EVENT_TRANSITION_END = 'transitionend';  var EVENT_WHEEL = 'wheel mousewheel DOMMouseScroll';  // Data keys  var DATA_ACTION = NAMESPACE + 'Action';  var BUTTONS = ['zoom-in', 'zoom-out', 'one-to-one', 'reset', 'prev', 'play', 'next', 'rotate-left', 'rotate-right', 'flip-horizontal', 'flip-vertical'];  var _typeof = typeof Symbol === "function" && typeof Symbol.iterator === "symbol" ? function (obj) {    return typeof obj;  } : function (obj) {    return obj && typeof Symbol === "function" && obj.constructor === Symbol && obj !== Symbol.prototype ? "symbol" : typeof obj;  };  var classCallCheck = function (instance, Constructor) {    if (!(instance instanceof Constructor)) {      throw new TypeError("Cannot call a class as a function");    }  };  var createClass = function () {    function defineProperties(target, props) {      for (var i = 0; i < props.length; i++) {        var descriptor = props[i];        descriptor.enumerable = descriptor.enumerable || false;        descriptor.configurable = true;        if ("value" in descriptor) descriptor.writable = true;        Object.defineProperty(target, descriptor.key, descriptor);      }    }    return function (Constructor, protoProps, staticProps) {      if (protoProps) defineProperties(Constructor.prototype, protoProps);      if (staticProps) defineProperties(Constructor, staticProps);      return Constructor;    };  }();  /**  * Check if the given value is a string.  * @param {*} value - The value to check.  * @returns {boolean} Returns `true` if the given value is a string, else `false`.  */  function isString(value) {    return typeof value === 'string';  }  /**  * Check if the given value is not a number.  */  var isNaN = Number.isNaN || WINDOW.isNaN;  /**  * Check if the given value is a number.  * @param {*} value - The value to check.  * @returns {boolean} Returns `true` if the given value is a number, else `false`.  */  function isNumber(value) {    return typeof value === 'number' && !isNaN(value);  }  /**  * Check if the given value is undefined.  * @param {*} value - The value to check.  * @returns {boolean} Returns `true` if the given value is undefined, else `false`.  */  function isUndefined(value) {    return typeof value === 'undefined';  }  /**  * Check if the given value is an object.  * @param {*} value - The value to check.  * @returns {boolean} Returns `true` if the given value is an object, else `false`.  */  function isObject(value) {    return (typeof value === 'undefined' ? 'undefined' : _typeof(value)) === 'object' && value !== null;  }  var hasOwnProperty = Object.prototype.hasOwnProperty;  /**  * Check if the given value is a plain object.  * @param {*} value - The value to check.  * @returns {boolean} Returns `true` if the given value is a plain object, else `false`.  */  function isPlainObject(value) {    if (!isObject(value)) {      return false;    }    try {      var _constructor = value.constructor;      var prototype = _constructor.prototype;      return _constructor && prototype && hasOwnProperty.call(prototype, 'isPrototypeOf');    } catch (e) {      return false;    }  }  /**  * Check if the given value is a function.  * @param {*} value - The value to check.  * @returns {boolean} Returns `true` if the given value is a function, else `false`.  */  function isFunction(value) {    return typeof value === 'function';  }  /**  * Iterate the given data.  * @param {*} data - The data to iterate.  * @param {Function} callback - The process function for each element.  * @returns {*} The original data.  */  function forEach(data, callback) {    if (data && isFunction(callback)) {      if (Array.isArray(data) || isNumber(data.length) /* array-like */) {          var length = data.length;          var i = void 0;          for (i = 0; i < length; i += 1) {            if (callback.call(data, data[i], i, data) === false) {              break;            }          }        } else if (isObject(data)) {        Object.keys(data).forEach(function (key) {          callback.call(data, data[key], key, data);        });      }    }    return data;  }  /**  * Extend the given object.  * @param {*} obj - The object to be extended.  * @param {*} args - The rest objects which will be merged to the first object.  * @returns {Object} The extended object.  */  var assign = Object.assign || function assign(obj) {    for (var _len = arguments.length, args = Array(_len > 1 ? _len - 1 : 0), _key = 1; _key < _len; _key++) {      args[_key - 1] = arguments[_key];    }    if (isObject(obj) && args.length > 0) {      args.forEach(function (arg) {        if (isObject(arg)) {          Object.keys(arg).forEach(function (key) {            obj[key] = arg[key];          });        }      });    }    return obj;  };  var REGEXP_SUFFIX = /^(?:width|height|left|top|marginLeft|marginTop)$/;  /**  * Apply styles to the given element.  * @param {Element} element - The target element.  * @param {Object} styles - The styles for applying.  */  function setStyle(element, styles) {    var style = element.style;    forEach(styles, function (value, property) {      if (REGEXP_SUFFIX.test(property) && isNumber(value)) {        value += 'px';      }      style[property] = value;    });  }  /**  * Check if the given element has a special class.  * @param {Element} element - The element to check.  * @param {string} value - The class to search.  * @returns {boolean} Returns `true` if the special class was found.  */  function hasClass(element, value) {    return element.classList ? element.classList.contains(value) : element.className.indexOf(value) > -1;  }  /**  * Add classes to the given element.  * @param {Element} element - The target element.  * @param {string} value - The classes to be added.  */  function addClass(element, value) {    if (!value) {      return;    }    if (isNumber(element.length)) {      forEach(element, function (elem) {        addClass(elem, value);      });      return;    }    if (element.classList) {      element.classList.add(value);      return;    }    var className = element.className.trim();    if (!className) {      element.className = value;    } else if (className.indexOf(value) < 0) {      element.className = className + ' ' + value;    }  }  /**  * Remove classes from the given element.  * @param {Element} element - The target element.  * @param {string} value - The classes to be removed.  */  function removeClass(element, value) {    if (!value) {      return;    }    if (isNumber(element.length)) {      forEach(element, function (elem) {        removeClass(elem, value);      });      return;    }    if (element.classList) {      element.classList.remove(value);      return;    }    if (element.className.indexOf(value) >= 0) {      element.className = element.className.replace(value, '');    }  }  /**  * Add or remove classes from the given element.  * @param {Element} element - The target element.  * @param {string} value - The classes to be toggled.  * @param {boolean} added - Add only.  */  function toggleClass(element, value, added) {    if (!value) {      return;    }    if (isNumber(element.length)) {      forEach(element, function (elem) {        toggleClass(elem, value, added);      });      return;    }    // IE10-11 doesn't support the second parameter of `classList.toggle`    if (added) {      addClass(element, value);    } else {      removeClass(element, value);    }  }  var REGEXP_HYPHENATE = /([a-z\d])([A-Z])/g;  /**  * Transform the given string from camelCase to kebab-case  * @param {string} value - The value to transform.  * @returns {string} The transformed value.  */  function hyphenate(value) {    return value.replace(REGEXP_HYPHENATE, '$1-$2').toLowerCase();  }  /**  * Get data from the given element.  * @param {Element} element - The target element.  * @param {string} name - The data key to get.  * @returns {string} The data value.  */  function getData(element, name) {    if (isObject(element[name])) {      return element[name];    } else if (element.dataset) {      return element.dataset[name];    }    return element.getAttribute('data-' + hyphenate(name));  }  /**  * Set data to the given element.  * @param {Element} element - The target element.  * @param {string} name - The data key to set.  * @param {string} data - The data value.  */  function setData(element, name, data) {    if (isObject(data)) {      element[name] = data;    } else if (element.dataset) {      element.dataset[name] = data;    } else {      element.setAttribute('data-' + hyphenate(name), data);    }  }  /**  * Remove data from the given element.  * @param {Element} element - The target element.  * @param {string} name - The data key to remove.  */  function removeData(element, name) {    if (isObject(element[name])) {      try {        delete element[name];      } catch (e) {        element[name] = undefined;      }    } else if (element.dataset) {      // #128 Safari not allows to delete dataset property      try {        delete element.dataset[name];      } catch (e) {        element.dataset[name] = undefined;      }    } else {      element.removeAttribute('data-' + hyphenate(name));    }  }  var REGEXP_SPACES = /\s\s*/;  var onceSupported = function () {    var supported = false;    if (IN_BROWSER) {      var once = false;      var listener = function listener() {};      var options = Object.defineProperty({}, 'once', {        get: function get$$1() {          supported = true;          return once;        },        /**        * This setter can fix a `TypeError` in strict mode        * {@link https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Errors/Getter_only}        * @param {boolean} value - The value to set        */        set: function set$$1(value) {          once = value;        }      });      WINDOW.addEventListener('test', listener, options);      WINDOW.removeEventListener('test', listener, options);    }    return supported;  }();  /**  * Remove event listener from the target element.  * @param {Element} element - The event target.  * @param {string} type - The event type(s).  * @param {Function} listener - The event listener.  * @param {Object} options - The event options.  */  function removeListener(element, type, listener) {    var options = arguments.length > 3 && arguments[3] !== undefined ? arguments[3] : {};    var handler = listener;    type.trim().split(REGEXP_SPACES).forEach(function (event) {      if (!onceSupported) {        var listeners = element.listeners;        if (listeners && listeners[event] && listeners[event][listener]) {          handler = listeners[event][listener];          delete listeners[event][listener];          if (Object.keys(listeners[event]).length === 0) {            delete listeners[event];          }          if (Object.keys(listeners).length === 0) {            delete element.listeners;          }        }      }      element.removeEventListener(event, handler, options);    });  }  /**  * Add event listener to the target element.  * @param {Element} element - The event target.  * @param {string} type - The event type(s).  * @param {Function} listener - The event listener.  * @param {Object} options - The event options.  */  function addListener(element, type, listener) {    var options = arguments.length > 3 && arguments[3] !== undefined ? arguments[3] : {};    var _handler = listener;    type.trim().split(REGEXP_SPACES).forEach(function (event) {      if (options.once && !onceSupported) {        var _element$listeners = element.listeners,            listeners = _element$listeners === undefined ? {} : _element$listeners;        _handler = function handler() {          for (var _len2 = arguments.length, args = Array(_len2), _key2 = 0; _key2 < _len2; _key2++) {            args[_key2] = arguments[_key2];          }          delete listeners[event][listener];          element.removeEventListener(event, _handler, options);          listener.apply(element, args);        };        if (!listeners[event]) {          listeners[event] = {};        }        if (listeners[event][listener]) {          element.removeEventListener(event, listeners[event][listener], options);        }        listeners[event][listener] = _handler;        element.listeners = listeners;      }      element.addEventListener(event, _handler, options);    });  }  /**  * Dispatch event on the target element.  * @param {Element} element - The event target.  * @param {string} type - The event type(s).  * @param {Object} data - The additional event data.  * @returns {boolean} Indicate if the event is default prevented or not.  */  function dispatchEvent(element, type, data) {    var event = void 0;    // Event and CustomEvent on IE9-11 are global objects, not constructors    if (isFunction(Event) && isFunction(CustomEvent)) {      event = new CustomEvent(type, {        detail: data,        bubbles: true,        cancelable: true      });    } else {      event = document.createEvent('CustomEvent');      event.initCustomEvent(type, true, true, data);    }    return element.dispatchEvent(event);  }  /**  * Get the offset base on the document.  * @param {Element} element - The target element.  * @returns {Object} The offset data.  */  function getOffset(element) {    var box = element.getBoundingClientRect();    return {      left: box.left + (window.pageXOffset - document.documentElement.clientLeft),      top: box.top + (window.pageYOffset - document.documentElement.clientTop)    };  }  /**  * Get transforms base on the given object.  * @param {Object} obj - The target object.  * @returns {string} A string contains transform values.  */  function getTransforms(_ref) {    var rotate = _ref.rotate,        scaleX = _ref.scaleX,        scaleY = _ref.scaleY,        translateX = _ref.translateX,        translateY = _ref.translateY;    var values = [];    if (isNumber(translateX) && translateX !== 0) {      values.push('translateX(' + translateX + 'px)');    }    if (isNumber(translateY) && translateY !== 0) {      values.push('translateY(' + translateY + 'px)');    }    // Rotate should come first before scale to match orientation transform    if (isNumber(rotate) && rotate !== 0) {      values.push('rotate(' + rotate + 'deg)');    }    if (isNumber(scaleX) && scaleX !== 1) {      values.push('scaleX(' + scaleX + ')');    }    if (isNumber(scaleY) && scaleY !== 1) {      values.push('scaleY(' + scaleY + ')');    }    var transform = values.length ? values.join(' ') : 'none';    return {      WebkitTransform: transform,      msTransform: transform,      transform: transform    };  }  /**  * Get an image name from an image url.  * @param {string} url - The target url.  * @example  * // picture.jpg  * getImageNameFromURL('http://domain.com/path/to/picture.jpg?size=1280×960')  * @returns {string} A string contains the image name.  */  function getImageNameFromURL(url) {    return isString(url) ? url.replace(/^.*\//, '').replace(/[?&#].*$/, '') : '';  }  var IS_SAFARI = WINDOW.navigator && /(Macintosh|iPhone|iPod|iPad).*AppleWebKit/i.test(WINDOW.navigator.userAgent);  /**  * Get an image's natural sizes.  * @param {string} image - The target image.  * @param {Function} callback - The callback function.  * @returns {HTMLImageElement} The new image.  */  function getImageNaturalSizes(image, callback) {    var newImage = document.createElement('img');    // Modern browsers (except Safari)    if (image.naturalWidth && !IS_SAFARI) {      callback(image.naturalWidth, image.naturalHeight);      return newImage;    }    var body = document.body || document.documentElement;    newImage.onload = function () {      callback(newImage.width, newImage.height);      if (!IS_SAFARI) {        body.removeChild(newImage);      }    };    newImage.src = image.src;    // iOS Safari will convert the image automatically    // with its orientation once append it into DOM    if (!IS_SAFARI) {      newImage.style.cssText = 'left:0;' + 'max-height:none!important;' + 'max-width:none!important;' + 'min-height:0!important;' + 'min-width:0!important;' + 'opacity:0;' + 'position:absolute;' + 'top:0;' + 'z-index:-1;';      body.appendChild(newImage);    }    return newImage;  }  /**  * Get the related class name of a responsive type number.  * @param {string} type - The responsive type.  * @returns {string} The related class name.  */  function getResponsiveClass(type) {    switch (type) {      case 2:        return CLASS_HIDE_XS_DOWN;      case 3:        return CLASS_HIDE_SM_DOWN;      case 4:        return CLASS_HIDE_MD_DOWN;      default:        return '';    }  }  /**  * Get the max ratio of a group of pointers.  * @param {string} pointers - The target pointers.  * @returns {number} The result ratio.  */  function getMaxZoomRatio(pointers) {    var pointers2 = assign({}, pointers);    var ratios = [];    forEach(pointers, function (pointer, pointerId) {      delete pointers2[pointerId];      forEach(pointers2, function (pointer2) {        var x1 = Math.abs(pointer.startX - pointer2.startX);        var y1 = Math.abs(pointer.startY - pointer2.startY);        var x2 = Math.abs(pointer.endX - pointer2.endX);        var y2 = Math.abs(pointer.endY - pointer2.endY);        var z1 = Math.sqrt(x1 * x1 + y1 * y1);        var z2 = Math.sqrt(x2 * x2 + y2 * y2);        var ratio = (z2 - z1) / z1;        ratios.push(ratio);      });    });    ratios.sort(function (a, b) {      return Math.abs(a) < Math.abs(b);    });    return ratios[0];  }  /**  * Get a pointer from an event object.  * @param {Object} event - The target event object.  * @param {boolean} endOnly - Indicates if only returns the end point coordinate or not.  * @returns {Object} The result pointer contains start and/or end point coordinates.  */  function getPointer(_ref2, endOnly) {    var pageX = _ref2.pageX,        pageY = _ref2.pageY;    var end = {      endX: pageX,      endY: pageY    };    return endOnly ? end : assign({      startX: pageX,      startY: pageY    }, end);  }  /**  * Get the center point coordinate of a group of pointers.  * @param {Object} pointers - The target pointers.  * @returns {Object} The center point coordinate.  */  function getPointersCenter(pointers) {    var pageX = 0;    var pageY = 0;    var count = 0;    forEach(pointers, function (_ref3) {      var startX = _ref3.startX,          startY = _ref3.startY;      pageX += startX;      pageY += startY;      count += 1;    });    pageX /= count;    pageY /= count;    return {      pageX: pageX,      pageY: pageY    };  }  var render = {    render: function render() {      this.initContainer();      this.initViewer();      this.initList();      this.renderViewer();    },    initContainer: function initContainer() {      this.containerData = {        width: window.innerWidth,        height: window.innerHeight      };    },    initViewer: function initViewer() {      var options = this.options,          parent = this.parent;      var viewerData = void 0;      if (options.inline) {        viewerData = {          width: Math.max(parent.offsetWidth, options.minWidth),          height: Math.max(parent.offsetHeight, options.minHeight)        };        this.parentData = viewerData;      }      if (this.fulled || !viewerData) {        viewerData = this.containerData;      }      this.viewerData = assign({}, viewerData);    },    renderViewer: function renderViewer() {      if (this.options.inline && !this.fulled) {        setStyle(this.viewer, this.viewerData);      }    },    initList: function initList() {      var _this = this;      var element = this.element,          options = this.options,          list = this.list;      var items = [];      forEach(this.images, function (image, i) {          var src = image.src;          console.log($(image).parent().siblings())          var imgTitle;          if ($(image).parent().siblings().length !== 0) {              imgTitle = $(image).parent().siblings()[0].innerText;          } else {              imgTitle = '';          }        var alt = image.alt || getImageNameFromURL(src);        var url = options.url;        if (isString(url)) {          url = image.getAttribute(url);        } else if (isFunction(url)) {          url = url.call(_this, image);        }        if (src || url) {            items.push('

' + '' + '

' + imgTitle + '

');        }      });      list.innerHTML = items.join('');      this.items = list.getElementsByTagName('li');      forEach(this.items, function (item) {        var image = item.firstElementChild;        var imgtitle = $(item).find('p')[0];        setData(image, 'filled', true);        setData(imgtitle, 'ptitle', true);        if (options.loading) {          addClass(item, CLASS_LOADING);        }        addListener(image, EVENT_LOAD, function (event) {          if (options.loading) {            removeClass(item, CLASS_LOADING);          }          _this.loadImage(event);        }, {          once: true        });      });      if (options.transition) {        addListener(element, EVENT_VIEWED, function () {          addClass(list, CLASS_TRANSITION);        }, {          once: true        });      }    },    renderList: function renderList(index) {      var i = index || this.index;      var width = this.items[i].offsetWidth || 30;      var outerWidth = width + 1; // 1 pixel of `margin-left` width      // Place the active item in the center of the screen      setStyle(this.list, assign({        width: outerWidth * this.length      }, getTransforms({        translateX: (this.viewerData.width - width) / 2 - outerWidth * i      })));      // return i;    },    resetList: function resetList() {        var list = this.list;      list.innerHTML = '';      removeClass(list, CLASS_TRANSITION);      setStyle(list, getTransforms({        translateX: 0      }));    },    initImage: function initImage(done) {      var _this2 = this;      var options = this.options,          image = this.image,          viewerData = this.viewerData;      var footerHeight = this.footer.offsetHeight;      var viewerWidth = viewerData.width;      var viewerHeight = Math.max(viewerData.height - footerHeight, footerHeight);      var oldImageData = this.imageData || {};      var sizingImage = void 0;      this.imageInitializing = {        abort: function abort() {          sizingImage.onload = null;        }      };      sizingImage = getImageNaturalSizes(image, function (naturalWidth, naturalHeight) {        var aspectRatio = naturalWidth / naturalHeight;        var width = viewerWidth;        var height = viewerHeight;        _this2.imageInitializing = false;        if (viewerHeight * aspectRatio > viewerWidth) {          height = viewerWidth / aspectRatio;        } else {          width = viewerHeight * aspectRatio;        }        width = Math.min(width * 0.9, naturalWidth);        height = Math.min(height * 0.9, naturalHeight);        var imageData = {          naturalWidth: naturalWidth,          naturalHeight: naturalHeight,          aspectRatio: aspectRatio,          ratio: width / naturalWidth,          width: width,          height: height,          left: (viewerWidth - width) / 2,          top: (viewerHeight - height) / 2        };        var initialImageData = assign({}, imageData);        if (options.rotatable) {          imageData.rotate = oldImageData.rotate || 0;          initialImageData.rotate = 0;        }        if (options.scalable) {          imageData.scaleX = oldImageData.scaleX || 1;          imageData.scaleY = oldImageData.scaleY || 1;          initialImageData.scaleX = 1;          initialImageData.scaleY = 1;        }        _this2.imageData = imageData;        _this2.initialImageData = initialImageData;        if (done) {          done();        }      });    },    renderImage: function renderImage(done) {      var _this3 = this;      var image = this.image,          imageData = this.imageData;      setStyle(image, assign({        width: imageData.width,        height: imageData.height,        marginLeft: imageData.left,        marginTop: imageData.top      }, getTransforms(imageData)));      if (done) {        if ((this.viewing || this.zooming) && this.options.transition) {          var onTransitionEnd = function onTransitionEnd() {            _this3.imageRendering = false;            done();          };          this.imageRendering = {            abort: function abort() {              removeListener(image, EVENT_TRANSITION_END, onTransitionEnd);            }          };          addListener(image, EVENT_TRANSITION_END, onTransitionEnd, {            once: true          });        } else {          done();        }      }    },    resetImage: function resetImage() {      // this.image only defined after viewed      if (this.viewing || this.viewed) {        var image = this.image;        if (this.viewing) {          this.viewing.abort();        }        image.parentNode.removeChild(image);        this.image = null;      }    }  };  var events = {    bind: function bind() {      var element = this.element,          viewer = this.viewer;      addListener(viewer, EVENT_CLICK, this.onClick = this.click.bind(this));      addListener(viewer, EVENT_WHEEL, this.onWheel = this.wheel.bind(this));      addListener(viewer, EVENT_DRAG_START, this.onDragStart = this.dragstart.bind(this));      addListener(this.canvas, EVENT_POINTER_DOWN, this.onPointerDown = this.pointerdown.bind(this));      addListener(element.ownerDocument, EVENT_POINTER_MOVE, this.onPointerMove = this.pointermove.bind(this));      addListener(element.ownerDocument, EVENT_POINTER_UP, this.onPointerUp = this.pointerup.bind(this));      addListener(element.ownerDocument, EVENT_KEY_DOWN, this.onKeyDown = this.keydown.bind(this));      addListener(window, EVENT_RESIZE, this.onResize = this.resize.bind(this));    },    unbind: function unbind() {      var element = this.element,          viewer = this.viewer;      removeListener(viewer, EVENT_CLICK, this.onClick);      removeListener(viewer, EVENT_WHEEL, this.onWheel);      removeListener(viewer, EVENT_DRAG_START, this.onDragStart);      removeListener(this.canvas, EVENT_POINTER_DOWN, this.onPointerDown);      removeListener(element.ownerDocument, EVENT_POINTER_MOVE, this.onPointerMove);      removeListener(element.ownerDocument, EVENT_POINTER_UP, this.onPointerUp);      removeListener(element.ownerDocument, EVENT_KEY_DOWN, this.onKeyDown);      removeListener(window, EVENT_RESIZE, this.onResize);    }  };  var handlers = {      click: function click(_ref) {      var target = _ref.target;      var options = this.options,          imageData = this.imageData;      var action = getData(target, DATA_ACTION);      switch (action) {        case 'mix':          if (this.played) {            this.stop();          } else if (options.inline) {            if (this.fulled) {              this.exit();            } else {              this.full();            }          } else {            this.hide();          }          break;        case 'hide':          this.hide();          break;          case 'view':          this.view(getData(target, 'index'));          break;        case 'zoom-in':          this.zoom(0.1, true);          break;        case 'zoom-out':          this.zoom(-0.1, true);          break;        case 'one-to-one':          this.toggle();          break;        case 'reset':          this.reset();          break;        case 'prev':          this.prev(options.loop);          break;        case 'play':          this.play(options.fullscreen);          break;        case 'next':          this.next(options.loop);          break;        case 'rotate-left':          this.rotate(-90);          break;        case 'rotate-right':          this.rotate(90);          break;        case 'flip-horizontal':          this.scaleX(-imageData.scaleX || -1);          break;        case 'flip-vertical':          this.scaleY(-imageData.scaleY || -1);          break;        default:          if (this.played) {            this.stop();          }      }    },    load: function load() {      var _this = this;      if (this.timeout) {        clearTimeout(this.timeout);        this.timeout = false;      }            var element = this.element,          options = this.options,          image = this.image,          index = this.index,          viewerData = this.viewerData;            removeClass(image, CLASS_INVISIBLE);      if (options.loading) {        removeClass(this.canvas, CLASS_LOADING);      }      image.style.cssText = 'height:0;' + ('margin-left:' + viewerData.width / 2 + 'px;') + ('margin-top:' + viewerData.height / 2 + 'px;') + 'max-width:none!important;' + 'position:absolute;' + 'width:0;';      this.initImage(function () {        toggleClass(image, CLASS_MOVE, options.movable);        toggleClass(image, CLASS_TRANSITION, options.transition);        _this.renderImage(function () {          _this.viewed = true;          _this.viewing = false;          if (isFunction(options.viewed)) {            addListener(element, EVENT_VIEWED, options.viewed, {              once: true            });          }          dispatchEvent(element, EVENT_VIEWED, {            originalImage: _this.images[index],            index: index,            image: image          });        });      });    },    loadImage: function loadImage(e) {      var image = e.target;      var parent = image.parentNode;      var parentWidth = parent.offsetWidth || 30;      var parentHeight = parent.offsetHeight || 50;      var filled = !!getData(image, 'filled');      getImageNaturalSizes(image, function (naturalWidth, naturalHeight) {        var aspectRatio = naturalWidth / naturalHeight;        var width = parentWidth;        var height = parentHeight;        if (parentHeight * aspectRatio > parentWidth) {          if (filled) {            width = parentHeight * aspectRatio;          } else {            height = parentWidth / aspectRatio;          }        } else if (filled) {          height = parentWidth / aspectRatio;        } else {          width = parentHeight * aspectRatio;        }        setStyle(image, assign({          width: width,          height: height        }, getTransforms({          translateX: (parentWidth - width) / 2,          translateY: (parentHeight - height) / 2        })));      });    },    keydown: function keydown(e) {      var options = this.options;      if (!this.fulled || !options.keyboard) {        return;      }      switch (e.keyCode || e.which || e.charCode) {        // Escape        case 27:          if (this.played) {            this.stop();          } else if (options.inline) {            if (this.fulled) {              this.exit();            }          } else {            this.hide();          }          break;        // Space        case 32:          if (this.played) {            this.stop();          }          break;        // ArrowLeft        case 37:          this.prev(options.loop);          break;        // ArrowUp        case 38:          // Prevent scroll on Firefox          e.preventDefault();          // Zoom in          this.zoom(options.zoomRatio, true);          break;        // ArrowRight        case 39:          this.next(options.loop);          break;        // ArrowDown        case 40:          // Prevent scroll on Firefox          e.preventDefault();          // Zoom out          this.zoom(-options.zoomRatio, true);          break;        // Ctrl + 0        case 48:        // Fall through        // Ctrl + 1        // eslint-disable-next-line no-fallthrough        case 49:          if (e.ctrlKey) {            e.preventDefault();            this.toggle();          }          break;        default:      }    },    dragstart: function dragstart(e) {      if (e.target.tagName.toLowerCase() === 'img') {        e.preventDefault();      }    },    pointerdown: function pointerdown(e) {      var options = this.options,          pointers = this.pointers;      if (!this.viewed || this.showing || this.viewing || this.hiding) {        return;      }      // This line is required for preventing page zooming in iOS browsers      e.preventDefault();      if (e.changedTouches) {        forEach(e.changedTouches, function (touch) {          pointers[touch.identifier] = getPointer(touch);        });      } else {        pointers[e.pointerId || 0] = getPointer(e);      }      var action = options.movable ? ACTION_MOVE : false;      if (Object.keys(pointers).length > 1) {        action = ACTION_ZOOM;      } else if ((e.pointerType === 'touch' || e.type === 'touchstart') && this.isSwitchable()) {        action = ACTION_SWITCH;      }      if (options.transition && (action === ACTION_MOVE || action === ACTION_ZOOM)) {        removeClass(this.image, CLASS_TRANSITION);      }      this.action = action;    },    pointermove: function pointermove(e) {      var pointers = this.pointers,          action = this.action;      if (!this.viewed || !action) {        return;      }      e.preventDefault();      if (e.changedTouches) {        forEach(e.changedTouches, function (touch) {          assign(pointers[touch.identifier], getPointer(touch, true));        });      } else {        assign(pointers[e.pointerId || 0], getPointer(e, true));      }      this.change(e);    },    pointerup: function pointerup(e) {      var action = this.action,          pointers = this.pointers;      if (e.changedTouches) {        forEach(e.changedTouches, function (touch) {          delete pointers[touch.identifier];        });      } else {        delete pointers[e.pointerId || 0];      }      if (!action) {        return;      }      e.preventDefault();      if (this.options.transition && (action === ACTION_MOVE || action === ACTION_ZOOM)) {        addClass(this.image, CLASS_TRANSITION);      }      this.action = false;    },    resize: function resize() {      var _this2 = this;      if (!this.isShown || this.hiding) {        return;      }      this.initContainer();      this.initViewer();      this.renderViewer();      this.renderList();      var clientH = $(window).height();      $('.viewer-canvas > p').css({ 'position': 'absolute', 'bottom': '200px' })      if (this.viewed) {        this.initImage(function () {          _this2.renderImage();        });      }      if (this.played) {        if (this.options.fullscreen && this.fulled && !document.fullscreenElement && !document.mozFullScreenElement && !document.webkitFullscreenElement && !document.msFullscreenElement) {          this.stop();          return;        }        forEach(this.player.getElementsByTagName('img'), function (image) {          addListener(image, EVENT_LOAD, _this2.loadImage.bind(_this2), {            once: true          });          dispatchEvent(image, EVENT_LOAD);        });      }    },    wheel: function wheel(e) {      var _this3 = this;      if (!this.viewed) {        return;      }      e.preventDefault();      // Limit wheel speed to prevent zoom too fast      if (this.wheeling) {        return;      }      this.wheeling = true;      setTimeout(function () {        _this3.wheeling = false;      }, 50);      var ratio = Number(this.options.zoomRatio) || 0.1;      var delta = 1;      if (e.deltaY) {        delta = e.deltaY > 0 ? 1 : -1;      } else if (e.wheelDelta) {        delta = -e.wheelDelta / 120;      } else if (e.detail) {        delta = e.detail > 0 ? 1 : -1;      }      this.zoom(-delta * ratio, true, e);    }  };  var methods = {    /** Show the viewer (only available in modal mode)    * @param {boolean} [immediate=false] - Indicates if show the viewer immediately or not.    * @returns {Viewer} this    */      show: function show() {      var immediate = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : false;      var element = this.element,          options = this.options;      if (options.inline || this.showing || this.isShown || this.showing) {        return this;      }      if (!this.ready) {        this.build();        if (this.ready) {          this.show(immediate);        }        return this;      }      if (isFunction(options.show)) {        addListener(element, EVENT_SHOW, options.show, {          once: true        });      }      if (dispatchEvent(element, EVENT_SHOW) === false || !this.ready) {        return this;      }      if (this.hiding) {        this.transitioning.abort();      }      this.showing = true;      this.open();      var viewer = this.viewer;      removeClass(viewer, CLASS_HIDE);      if (options.transition && !immediate) {        var shown = this.shown.bind(this);        this.transitioning = {          abort: function abort() {            removeListener(viewer, EVENT_TRANSITION_END, shown);            removeClass(viewer, CLASS_IN);          }        };        addClass(viewer, CLASS_TRANSITION);        // Force reflow to enable CSS3 transition        // eslint-disable-next-line        viewer.offsetWidth;        addListener(viewer, EVENT_TRANSITION_END, shown, {          once: true        });        addClass(viewer, CLASS_IN);      } else {        addClass(viewer, CLASS_IN);        this.shown();      }      return this;    },    /**    * Hide the viewer (only available in modal mode)    * @param {boolean} [immediate=false] - Indicates if hide the viewer immediately or not.    * @returns {Viewer} this    */    hide: function hide() {      var immediate = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : false;      var element = this.element,          options = this.options;      if (options.inline || this.hiding || !(this.isShown || this.showing)) {        return this;      }      if (isFunction(options.hide)) {        addListener(element, EVENT_HIDE, options.hide, {          once: true        });      }      if (dispatchEvent(element, EVENT_HIDE) === false) {        return this;      }      if (this.showing) {        this.transitioning.abort();      }      this.hiding = true;      if (this.played) {        this.stop();      } else if (this.viewing) {        this.viewing.abort();      }      var viewer = this.viewer;      if (options.transition && !immediate) {        var hidden = this.hidden.bind(this);        var hide = function hide() {          addListener(viewer, EVENT_TRANSITION_END, hidden, {            once: true          });          removeClass(viewer, CLASS_IN);        };        this.transitioning = {          abort: function abort() {            if (this.viewed) {              removeListener(this.image, EVENT_TRANSITION_END, hide);            } else {              removeListener(viewer, EVENT_TRANSITION_END, hidden);            }          }        };        if (this.viewed) {          addListener(this.image, EVENT_TRANSITION_END, hide, {            once: true          });          this.zoomTo(0, false, false, true);        } else {          hide();        }      } else {        removeClass(viewer, CLASS_IN);        this.hidden();      }      return this;    },    /**    * View one of the images with image's index    * @param {number} index - The index of the image to view.    * @returns {Viewer} this    */    view: function view() {      var _this = this;      var index = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : 0;      index = Number(index) || 0;      if (!this.isShown) {        this.index = index;        return this.show();      }      if (this.hiding || this.played || index < 0 || index >= this.length || this.viewed && index === this.index) {        return this;      }      if (this.viewing) {        this.viewing.abort();      }      var element = this.element,          options = this.options,          title = this.title,          canvas = this.canvas;      var item = this.items[index];      var img = item.querySelector('img');      var P = item.querySelector('p');      var url = getData(img, 'originalUrl');      var titles = P.innerHTML;      var alt = img.getAttribute('alt');      var image = document.createElement('img');      image.src = url;      image.alt = alt;      var p = document.createElement('p');      console.log(titles)    p.innerHTML = '' + titles + '';            if (isFunction(options.view)) {        addListener(element, EVENT_VIEW, options.view, {          once: true        });      }      if (dispatchEvent(element, EVENT_VIEW, {        originalImage: this.images[index],        index: index,        image: image      }) === false || !this.isShown || this.hiding || this.played) {        return this;      }      this.image = image;      removeClass(this.items[this.index], CLASS_ACTIVE);      addClass(item, CLASS_ACTIVE);      this.viewed = false;      this.index = index;      this.imageData = {};      addClass(image, CLASS_INVISIBLE);      if (options.loading) {        addClass(canvas, CLASS_LOADING);      }      canvas.innerHTML = '';      canvas.appendChild(image);      canvas.appendChild(p);      if (titles == '') {          p.innerHTML = '';      }      // Center current item      this.renderList();      var clientH = $(window).height()/2;      p.style.cssText = 'position: absolute;bottom: 200px';      // Clear title      title.innerHTML = '';      var currentIndex = this.index + 1;      var totle = $("#galley ul:first-child li").length;      // Generate title after viewed      var onViewed = function onViewed() {        var imageData = _this.imageData;        title.textContent = currentIndex + '/' + totle        // title.textContent = alt + ' (' + imageData.naturalWidth + ' \xD7 ' + imageData.naturalHeight + ')';      };      var onLoad = void 0;      addListener(element, EVENT_VIEWED, onViewed, {        once: true      });      this.viewing = {        abort: function abort() {          removeListener(element, EVENT_VIEWED, onViewed);          if (image.complete) {            if (this.imageRendering) {              this.imageRendering.abort();            } else if (this.imageInitializing) {              this.imageInitializing.abort();            }          } else {            removeListener(image, EVENT_LOAD, onLoad);            if (this.timeout) {              clearTimeout(this.timeout);            }          }        }      };      if (image.complete) {        this.load();      } else {        addListener(image, EVENT_LOAD, onLoad = this.load.bind(this), {          once: true        });        if (this.timeout) {          clearTimeout(this.timeout);        }        // Make the image visible if it fails to load within 1s        this.timeout = setTimeout(function () {          removeClass(image, CLASS_INVISIBLE);          _this.timeout = false;        }, 1000);      }      return this;    },    /**    * View the previous image    * @param {boolean} [loop=false] - Indicate if view the last one    * when it is the first one at present.    * @returns {Viewer} this    */    prev: function prev() {      var loop = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : false;      var index = this.index - 1;      if (index < 0) {        index = loop ? this.length - 1 : 0;      }      this.view(index);      return this;    },    /**    * View the next image    * @param {boolean} [loop=false] - Indicate if view the first one    * when it is the last one at present.    * @returns {Viewer} this    */    next: function next() {      var loop = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : false;      var maxIndex = this.length - 1;      var index = this.index + 1;      if (index > maxIndex) {        index = loop ? 0 : maxIndex;      }      this.view(index);      return this;    },    /**    * Move the image with relative offsets.    * @param {number} offsetX - The relative offset distance on the x-axis.    * @param {number} offsetY - The relative offset distance on the y-axis.    * @returns {Viewer} this    */    move: function move(offsetX, offsetY) {      var imageData = this.imageData;      this.moveTo(isUndefined(offsetX) ? offsetX : imageData.left + Number(offsetX), isUndefined(offsetY) ? offsetY : imageData.top + Number(offsetY));      return this;    },    /**    * Move the image to an absolute point.    * @param {number} x - The x-axis coordinate.    * @param {number} [y=x] - The y-axis coordinate.    * @returns {Viewer} this    */    moveTo: function moveTo(x) {      var y = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : x;      var imageData = this.imageData;      x = Number(x);      y = Number(y);      if (this.viewed && !this.played && this.options.movable) {        var changed = false;        if (isNumber(x)) {          imageData.left = x;          changed = true;        }        if (isNumber(y)) {          imageData.top = y;          changed = true;        }        if (changed) {          this.renderImage();        }      }      return this;    },    /**    * Zoom the image with a relative ratio.    * @param {number} ratio - The target ratio.    * @param {boolean} [hasTooltip=false] - Indicates if it has a tooltip or not.    * @param {Event} [_originalEvent=null] - The original event if any.    * @returns {Viewer} this    */    zoom: function zoom(ratio) {      var hasTooltip = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : false;      var _originalEvent = arguments.length > 2 && arguments[2] !== undefined ? arguments[2] : null;      var imageData = this.imageData;      ratio = Number(ratio);      if (ratio < 0) {        ratio = 1 / (1 - ratio);      } else {        ratio = 1 + ratio;      }      this.zoomTo(imageData.width * ratio / imageData.naturalWidth, hasTooltip, _originalEvent);      return this;    },    /**    * Zoom the image to an absolute ratio.    * @param {number} ratio - The target ratio.    * @param {boolean} [hasTooltip=false] - Indicates if it has a tooltip or not.    * @param {Event} [_originalEvent=null] - The original event if any.    * @param {Event} [_zoomable=false] - Indicates if the current zoom is available or not.    * @returns {Viewer} this    */    zoomTo: function zoomTo(ratio) {      var hasTooltip = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : false;      var _this2 = this;      var _originalEvent = arguments.length > 2 && arguments[2] !== undefined ? arguments[2] : null;      var _zoomable = arguments.length > 3 && arguments[3] !== undefined ? arguments[3] : false;      var element = this.element,          options = this.options,          pointers = this.pointers,          imageData = this.imageData;      ratio = Math.max(0, ratio);      if (isNumber(ratio) && this.viewed && !this.played && (_zoomable || options.zoomable)) {        if (!_zoomable) {          var minZoomRatio = Math.max(0.01, options.minZoomRatio);          var maxZoomRatio = Math.min(100, options.maxZoomRatio);          ratio = Math.min(Math.max(ratio, minZoomRatio), maxZoomRatio);        }        if (_originalEvent && ratio > 0.95 && ratio < 1.05) {          ratio = 1;        }        var newWidth = imageData.naturalWidth * ratio;        var newHeight = imageData.naturalHeight * ratio;        var oldRatio = imageData.width / imageData.naturalWidth;        if (isFunction(options.zoom)) {          addListener(element, EVENT_ZOOM, options.zoom, {            once: true          });        }        if (dispatchEvent(element, EVENT_ZOOM, {          ratio: ratio,          oldRatio: oldRatio,          originalEvent: _originalEvent        }) === false) {          return this;        }        this.zooming = true;        if (_originalEvent) {          var offset = getOffset(this.viewer);          var center = pointers && Object.keys(pointers).length ? getPointersCenter(pointers) : {            pageX: _originalEvent.pageX,            pageY: _originalEvent.pageY          };          // Zoom from the triggering point of the event          imageData.left -= (newWidth - imageData.width) * ((center.pageX - offset.left - imageData.left) / imageData.width);          imageData.top -= (newHeight - imageData.height) * ((center.pageY - offset.top - imageData.top) / imageData.height);        } else {          // Zoom from the center of the image          imageData.left -= (newWidth - imageData.width) / 2;          imageData.top -= (newHeight - imageData.height) / 2;        }        imageData.width = newWidth;        imageData.height = newHeight;        imageData.ratio = ratio;        this.renderImage(function () {          _this2.zooming = false;          if (isFunction(options.zoomed)) {            addListener(element, EVENT_ZOOMED, options.zoomed, {              once: true            });          }          dispatchEvent(element, EVENT_ZOOMED, {            ratio: ratio,            oldRatio: oldRatio,            originalEvent: _originalEvent          });        });        if (hasTooltip) {          this.tooltip();        }      }      return this;    },    /**    * Rotate the image with a relative degree.    * @param {number} degree - The rotate degree.    * @returns {Viewer} this    */    rotate: function rotate(degree) {      this.rotateTo((this.imageData.rotate || 0) + Number(degree));      return this;    },    /**    * Rotate the image to an absolute degree.    * @param {number} degree - The rotate degree.    * @returns {Viewer} this    */    rotateTo: function rotateTo(degree) {      var imageData = this.imageData;      degree = Number(degree);      if (isNumber(degree) && this.viewed && !this.played && this.options.rotatable) {        imageData.rotate = degree;        this.renderImage();      }      return this;    },    /**    * Scale the image on the x-axis.    * @param {number} scaleX - The scale ratio on the x-axis.    * @returns {Viewer} this    */    scaleX: function scaleX(_scaleX) {      this.scale(_scaleX, this.imageData.scaleY);      return this;    },    /**    * Scale the image on the y-axis.    * @param {number} scaleY - The scale ratio on the y-axis.    * @returns {Viewer} this    */    scaleY: function scaleY(_scaleY) {      this.scale(this.imageData.scaleX, _scaleY);      return this;    },    /**    * Scale the image.    * @param {number} scaleX - The scale ratio on the x-axis.    * @param {number} [scaleY=scaleX] - The scale ratio on the y-axis.    * @returns {Viewer} this    */    scale: function scale(scaleX) {      var scaleY = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : scaleX;      var imageData = this.imageData;      scaleX = Number(scaleX);      scaleY = Number(scaleY);      if (this.viewed && !this.played && this.options.scalable) {        var changed = false;        if (isNumber(scaleX)) {          imageData.scaleX = scaleX;          changed = true;        }        if (isNumber(scaleY)) {          imageData.scaleY = scaleY;          changed = true;        }        if (changed) {          this.renderImage();        }      }      return this;    },    /**    * Play the images    * @param {boolean} [fullscreen=false] - Indicate if request fullscreen or not.    * @returns {Viewer} this    */    play: function play() {      var _this3 = this;      var fullscreen = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : false;      if (!this.isShown || this.played) {        return this;      }      var options = this.options,          player = this.player;      var onLoad = this.loadImage.bind(this);      var list = [];      var total = 0;      var index = 0;      this.played = true;      this.onLoadWhenPlay = onLoad;      if (fullscreen) {        this.requestFullscreen();      }      addClass(player, CLASS_SHOW);      forEach(this.items, function (item, i) {        var img = item.querySelector('img');        var image = document.createElement('img');        image.src = getData(img, 'originalUrl');        image.alt = img.getAttribute('alt');        total += 1;        addClass(image, CLASS_FADE);        toggleClass(image, CLASS_TRANSITION, options.transition);        if (hasClass(item, CLASS_ACTIVE)) {          addClass(image, CLASS_IN);          index = i;        }        list.push(image);        addListener(image, EVENT_LOAD, onLoad, {          once: true        });        player.appendChild(image);      });      if (isNumber(options.interval) && options.interval > 0) {        var play = function play() {          _this3.playing = setTimeout(function () {            removeClass(list[index], CLASS_IN);            index += 1;            index = index < total ? index : 0;            addClass(list[index], CLASS_IN);            play();          }, options.interval);        };        if (total > 1) {          play();        }      }      return this;    },    // Stop play    stop: function stop() {      var _this4 = this;      if (!this.played) {        return this;      }      var player = this.player;      this.played = false;      clearTimeout(this.playing);      forEach(player.getElementsByTagName('img'), function (image) {        removeListener(image, EVENT_LOAD, _this4.onLoadWhenPlay);      });      removeClass(player, CLASS_SHOW);      player.innerHTML = '';      this.exitFullscreen();      return this;    },    // Enter modal mode (only available in inline mode)    full: function full() {      var _this5 = this;      var options = this.options,          viewer = this.viewer,          image = this.image,          list = this.list;      if (!this.isShown || this.played || this.fulled || !options.inline) {        return this;      }      this.fulled = true;      this.open();      addClass(this.button, CLASS_FULLSCREEN_EXIT);      if (options.transition) {        removeClass(list, CLASS_TRANSITION);        if (this.viewed) {          removeClass(image, CLASS_TRANSITION);        }      }      addClass(viewer, CLASS_FIXED);      viewer.setAttribute('style', '');      setStyle(viewer, {        zIndex: options.zIndex      });      this.initContainer();      this.viewerData = assign({}, this.containerData);      this.renderList();      if (this.viewed) {        this.initImage(function () {          _this5.renderImage(function () {            if (options.transition) {              setTimeout(function () {                addClass(image, CLASS_TRANSITION);                addClass(list, CLASS_TRANSITION);              }, 0);            }          });        });      }      return this;    },    // Exit modal mode (only available in inline mode)    exit: function exit() {      var _this6 = this;      var options = this.options,          viewer = this.viewer,          image = this.image,          list = this.list;      if (!this.isShown || this.played || !this.fulled || !options.inline) {        return this;      }      this.fulled = false;      this.close();      removeClass(this.button, CLASS_FULLSCREEN_EXIT);      if (options.transition) {        removeClass(list, CLASS_TRANSITION);        if (this.viewed) {          removeClass(image, CLASS_TRANSITION);        }      }      removeClass(viewer, CLASS_FIXED);      setStyle(viewer, {        zIndex: options.zIndexInline      });      this.viewerData = assign({}, this.parentData);      this.renderViewer();      this.renderList();      if (this.viewed) {        this.initImage(function () {          _this6.renderImage(function () {            if (options.transition) {              setTimeout(function () {                addClass(image, CLASS_TRANSITION);                addClass(list, CLASS_TRANSITION);              }, 0);            }          });        });      }      return this;    },    // Show the current ratio of the image with percentage    tooltip: function tooltip() {      var _this7 = this;      var options = this.options,          tooltipBox = this.tooltipBox,          imageData = this.imageData;      if (!this.viewed || this.played || !options.tooltip) {        return this;      }      tooltipBox.textContent = Math.round(imageData.ratio * 100) + '%';      if (!this.tooltipping) {        if (options.transition) {          if (this.fading) {            dispatchEvent(tooltipBox, EVENT_TRANSITION_END);          }          addClass(tooltipBox, CLASS_SHOW);          addClass(tooltipBox, CLASS_FADE);          addClass(tooltipBox, CLASS_TRANSITION);          // Force reflow to enable CSS3 transition          // eslint-disable-next-line          tooltipBox.offsetWidth;          addClass(tooltipBox, CLASS_IN);        } else {          addClass(tooltipBox, CLASS_SHOW);        }      } else {        clearTimeout(this.tooltipping);      }      this.tooltipping = setTimeout(function () {        if (options.transition) {          addListener(tooltipBox, EVENT_TRANSITION_END, function () {            removeClass(tooltipBox, CLASS_SHOW);            removeClass(tooltipBox, CLASS_FADE);            removeClass(tooltipBox, CLASS_TRANSITION);            _this7.fading = false;          }, {            once: true          });          removeClass(tooltipBox, CLASS_IN);          _this7.fading = true;        } else {          removeClass(tooltipBox, CLASS_SHOW);        }        _this7.tooltipping = false;      }, 1000);      return this;    },    // Toggle the image size between its natural size and initial size    toggle: function toggle() {      if (this.imageData.ratio === 1) {        this.zoomTo(this.initialImageData.ratio, true);      } else {        this.zoomTo(1, true);      }      return this;    },    // Reset the image to its initial state    reset: function reset() {      if (this.viewed && !this.played) {        this.imageData = assign({}, this.initialImageData);        this.renderImage();      }      return this;    },    // Update viewer when images changed    update: function update() {      var element = this.element,          options = this.options,          isImg = this.isImg;      // Destroy viewer if the target image was deleted      if (isImg && !element.parentNode) {        return this.destroy();      }      var images = [];      forEach(isImg ? [element] : element.querySelectorAll('img'), function (image) {        if (options.filter) {          if (options.filter(image)) {            images.push(image);          }        } else {          images.push(image);        }      });      if (!images.length) {        return this;      }      this.images = images;      this.length = images.length;      if (this.ready) {        var indexes = [];        forEach(this.items, function (item, i) {          var img = item.querySelector('img');          var image = images[i];          if (image) {            if (image.src !== img.src) {              indexes.push(i);            }          } else {            indexes.push(i);          }        });        setStyle(this.list, {          width: 'auto'        });        this.initList();        if (this.isShown) {          if (this.length) {            if (this.viewed) {              var index = indexes.indexOf(this.index);              if (index >= 0) {                this.viewed = false;                this.view(Math.max(this.index - (index + 1), 0));              } else {                addClass(this.items[this.index], CLASS_ACTIVE);              }            }          } else {            this.image = null;            this.viewed = false;            this.index = 0;            this.imageData = {};            this.canvas.innerHTML = '';            this.title.innerHTML = '';          }        }      } else {        this.build();      }      return this;    },    // Destroy the viewer    destroy: function destroy() {      var element = this.element,          options = this.options;      if (!getData(element, NAMESPACE)) {        return this;      }      this.destroyed = true;      if (this.ready) {        if (this.played) {          this.stop();        }        if (options.inline) {          if (this.fulled) {            this.exit();          }          this.unbind();        } else if (this.isShown) {          if (this.viewing) {            if (this.imageRendering) {              this.imageRendering.abort();            } else if (this.imageInitializing) {              this.imageInitializing.abort();            }          }          if (this.hiding) {            this.transitioning.abort();          }          this.hidden();        } else if (this.showing) {          this.transitioning.abort();          this.hidden();        }        this.ready = false;        this.viewer.parentNode.removeChild(this.viewer);      } else if (options.inline) {        if (this.delaying) {          this.delaying.abort();        } else if (this.initializing) {          this.initializing.abort();        }      }      if (!options.inline) {        removeListener(element, EVENT_CLICK, this.onStart);      }      removeData(element, NAMESPACE);      return this;    }  };  var others = {    open: function open() {      var body = this.body;      addClass(body, CLASS_OPEN);      body.style.paddingRight = this.scrollbarWidth + (parseFloat(this.initialBodyPaddingRight) || 0) + 'px';    },    close: function close() {      var body = this.body;      removeClass(body, CLASS_OPEN);      body.style.paddingRight = this.initialBodyPaddingRight;    },    shown: function shown() {      var element = this.element,          options = this.options;      this.fulled = true;      this.isShown = true;      this.render();      this.bind();      this.showing = false;      if (isFunction(options.shown)) {        addListener(element, EVENT_SHOWN, options.shown, {          once: true        });      }      if (dispatchEvent(element, EVENT_SHOWN) === false) {        return;      }      if (this.ready && this.isShown && !this.hiding) {        this.view(this.index);      }    },    hidden: function hidden() {      var element = this.element,          options = this.options;      this.fulled = false;      this.viewed = false;      this.isShown = false;      this.close();      this.unbind();      addClass(this.viewer, CLASS_HIDE);      this.resetList();      this.resetImage();      this.hiding = false;      if (!this.destroyed) {        if (isFunction(options.hidden)) {          addListener(element, EVENT_HIDDEN, options.hidden, {            once: true          });        }        dispatchEvent(element, EVENT_HIDDEN);      }    },    requestFullscreen: function requestFullscreen() {      var document = this.element.ownerDocument;      if (this.fulled && !document.fullscreenElement && !document.mozFullScreenElement && !document.webkitFullscreenElement && !document.msFullscreenElement) {        var documentElement = document.documentElement;        if (documentElement.requestFullscreen) {          documentElement.requestFullscreen();        } else if (documentElement.msRequestFullscreen) {          documentElement.msRequestFullscreen();        } else if (documentElement.mozRequestFullScreen) {          documentElement.mozRequestFullScreen();        } else if (documentElement.webkitRequestFullscreen) {          documentElement.webkitRequestFullscreen(Element.ALLOW_KEYBOARD_INPUT);        }      }    },    exitFullscreen: function exitFullscreen() {      if (this.fulled) {        var document = this.element.ownerDocument;        if (document.exitFullscreen) {          document.exitFullscreen();        } else if (document.msExitFullscreen) {          document.msExitFullscreen();        } else if (document.mozCancelFullScreen) {          document.mozCancelFullScreen();        } else if (document.webkitExitFullscreen) {          document.webkitExitFullscreen();        }      }    },    change: function change(e) {      var options = this.options,          pointers = this.pointers;      var pointer = pointers[Object.keys(pointers)[0]];      var offsetX = pointer.endX - pointer.startX;      var offsetY = pointer.endY - pointer.startY;      switch (this.action) {        // Move the current image        case ACTION_MOVE:          this.move(offsetX, offsetY);          break;        // Zoom the current image        case ACTION_ZOOM:          this.zoom(getMaxZoomRatio(pointers), false, e);          break;        case ACTION_SWITCH:          {            this.action = 'switched';            var absoluteOffsetX = Math.abs(offsetX);            if (absoluteOffsetX > 1 && absoluteOffsetX > Math.abs(offsetY)) {              // Empty `pointers` as `touchend` event will not be fired after swiped in iOS browsers.              this.pointers = {};              if (offsetX > 1) {                this.prev(options.loop);              } else if (offsetX < -1) {                this.next(options.loop);              }            }            break;          }        default:      }      // Override      forEach(pointers, function (p) {        p.startX = p.endX;        p.startY = p.endY;      });    },    isSwitchable: function isSwitchable() {      var imageData = this.imageData,          viewerData = this.viewerData;      return this.length > 1 && imageData.left >= 0 && imageData.top >= 0 && imageData.width <= viewerData.width && imageData.height <= viewerData.height;    }  };  var AnotherViewer = WINDOW.Viewer;  var Viewer = function () {    /**    * Create a new Viewer.    * @param {Element} element - The target element for viewing.    * @param {Object} [options={}] - The configuration options.    */    function Viewer(element) {      var options = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : {};      classCallCheck(this, Viewer);      if (!element || element.nodeType !== 1) {        throw new Error('The first argument is required and must be an element.');      }      this.element = element;      this.options = assign({}, DEFAULTS, isPlainObject(options) && options);      this.action = false;      this.fading = false;      this.fulled = false;      this.hiding = false;      this.imageData = {};      this.index = 0;      this.isImg = false;      this.isShown = false;      this.length = 0;      this.played = false;      this.playing = false;      this.pointers = {};      this.ready = false;      this.showing = false;      this.timeout = false;      this.tooltipping = false;      this.viewed = false;      this.viewing = false;      this.wheeling = false;      this.zooming = false;      this.init();    }    createClass(Viewer, [{      key: 'init',      value: function init() {        var _this = this;        var element = this.element,            options = this.options;        if (getData(element, NAMESPACE)) {          return;        }        setData(element, NAMESPACE, this);        var isImg = element.tagName.toLowerCase() === 'img';        var images = [];        forEach(isImg ? [element] : element.querySelectorAll('img'), function (image) {          if (isFunction(options.filter)) {            if (options.filter.call(_this, image)) {              images.push(image);            }          } else {            images.push(image);          }        });        if (!images.length) {          return;        }        this.isImg = isImg;        this.length = images.length;        this.images = images;        var ownerDocument = element.ownerDocument;        var body = ownerDocument.body || ownerDocument.documentElement;        this.body = body;        this.scrollbarWidth = window.innerWidth - ownerDocument.documentElement.clientWidth;        this.initialBodyPaddingRight = window.getComputedStyle(body).paddingRight;        // Override `transition` option if it is not supported        if (isUndefined(document.createElement(NAMESPACE).style.transition)) {          options.transition = false;        }        if (options.inline) {          var count = 0;          var progress = function progress() {            count += 1;            if (count === _this.length) {              var timeout = void 0;              _this.initializing = false;              _this.delaying = {                abort: function abort() {                  clearTimeout(timeout);                }              };              // build asynchronously to keep `this.viewer` is accessible in `ready` event handler.              timeout = setTimeout(function () {                _this.delaying = false;                _this.build();              }, 0);            }          };          this.initializing = {            abort: function abort() {              forEach(images, function (image) {                if (!image.complete) {                  removeListener(image, EVENT_LOAD, progress);                }              });            }          };          forEach(images, function (image) {            if (image.complete) {              progress();            } else {              addListener(image, EVENT_LOAD, progress, {                once: true              });            }          });        } else {          addListener(element, EVENT_CLICK, this.onStart = function (_ref) {            var target = _ref.target;            if (target.tagName.toLowerCase() === 'img') {              _this.view(_this.images.indexOf(target));            }          });        }      }    }, {      key: 'build',      value: function build() {        if (this.ready) {          return;        }        var element = this.element,            options = this.options;        var parent = element.parentNode;        var template = document.createElement('div');        template.innerHTML = TEMPLATE;        var viewer = template.querySelector('.' + NAMESPACE + '-container');        var title = viewer.querySelector('.' + NAMESPACE + '-title');        var toolbar = viewer.querySelector('.' + NAMESPACE + '-toolbar');        var navbar = viewer.querySelector('.' + NAMESPACE + '-navbar');        var button = viewer.querySelector('.' + NAMESPACE + '-button');        var canvas = viewer.querySelector('.' + NAMESPACE + '-canvas');        this.parent = parent;        this.viewer = viewer;        this.title = title;        this.toolbar = toolbar;        this.navbar = navbar;        this.button = button;        this.canvas = canvas;        this.footer = viewer.querySelector('.' + NAMESPACE + '-footer');        this.tooltipBox = viewer.querySelector('.' + NAMESPACE + '-tooltip');        this.player = viewer.querySelector('.' + NAMESPACE + '-player');        this.list = viewer.querySelector('.' + NAMESPACE + '-list');        addClass(title, !options.title ? CLASS_HIDE : getResponsiveClass(options.title));        addClass(navbar, !options.navbar ? CLASS_HIDE : getResponsiveClass(options.navbar));        toggleClass(button, CLASS_HIDE, !options.button);        if (options.backdrop) {          addClass(viewer, NAMESPACE + '-backdrop');          if (!options.inline && options.backdrop === true) {            setData(canvas, DATA_ACTION, 'hide');          }        }        if (options.toolbar) {          var list = document.createElement('ul');          var custom = isPlainObject(options.toolbar);          var zoomButtons = BUTTONS.slice(0, 3);          var rotateButtons = BUTTONS.slice(7, 9);          var scaleButtons = BUTTONS.slice(9);          if (!custom) {            addClass(toolbar, getResponsiveClass(options.toolbar));          }          forEach(custom ? options.toolbar : BUTTONS, function (value, index) {            var deep = custom && isPlainObject(value);            var name = custom ? hyphenate(index) : value;            var show = deep && !isUndefined(value.show) ? value.show : value;            if (!show || !options.zoomable && zoomButtons.indexOf(name) !== -1 || !options.rotatable && rotateButtons.indexOf(name) !== -1 || !options.scalable && scaleButtons.indexOf(name) !== -1) {              return;            }            var size = deep && !isUndefined(value.size) ? value.size : value;            var click = deep && !isUndefined(value.click) ? value.click : value;            var item = document.createElement('li');            item.setAttribute('role', 'button');            addClass(item, NAMESPACE + '-' + name);            if (!isFunction(click)) {              setData(item, DATA_ACTION, name);            }            if (isNumber(show)) {              addClass(item, getResponsiveClass(show));            }            if (['small', 'large'].indexOf(size) !== -1) {              addClass(item, NAMESPACE + '-' + size);            } else if (name === 'play') {              addClass(item, NAMESPACE + '-large');            }            if (isFunction(click)) {              addListener(item, EVENT_CLICK, click);            }            list.appendChild(item);          });          toolbar.appendChild(list);        } else {          addClass(toolbar, CLASS_HIDE);        }        if (!options.rotatable) {          var rotates = toolbar.querySelectorAll('li[class*="rotate"]');          addClass(rotates, CLASS_INVISIBLE);          forEach(rotates, function (rotate) {            toolbar.appendChild(rotate);          });        }        if (options.inline) {          addClass(button, CLASS_FULLSCREEN);          setStyle(viewer, {            zIndex: options.zIndexInline          });          if (window.getComputedStyle(parent).position === 'static') {            setStyle(parent, {              position: 'relative'            });          }          parent.insertBefore(viewer, element.nextSibling);        } else {          addClass(button, CLASS_CLOSE);          addClass(viewer, CLASS_FIXED);          addClass(viewer, CLASS_FADE);          addClass(viewer, CLASS_HIDE);          setStyle(viewer, {            zIndex: options.zIndex          });          var container = options.container;          if (isString(container)) {            container = element.ownerDocument.querySelector(container);          }          if (!container) {            container = this.body;          }          container.appendChild(viewer);        }        if (options.inline) {          this.render();          this.bind();          this.isShown = true;        }        this.ready = true;        if (isFunction(options.ready)) {          addListener(element, EVENT_READY, options.ready, {            once: true          });        }        if (dispatchEvent(element, EVENT_READY) === false) {          this.ready = false;          return;        }        if (this.ready && options.inline) {          this.view();        }      }      /**      * Get the no conflict viewer class.      * @returns {Viewer} The viewer class.      */    }], [{      key: 'noConflict',      value: function noConflict() {        window.Viewer = AnotherViewer;        return Viewer;      }      /**      * Change the default options.      * @param {Object} options - The new default options.      */    }, {      key: 'setDefaults',      value: function setDefaults(options) {        assign(DEFAULTS, isPlainObject(options) && options);      }    }]);    return Viewer;  }();  assign(Viewer.prototype, render, events, handlers, methods, others);  return Viewer;})));

改后的源码加上前面有p标签的html,效果:


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