3244 lines
104 KiB
JavaScript
3244 lines
104 KiB
JavaScript
/*!
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||
* Viewer.js v1.11.3
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* https://fengyuanchen.github.io/viewerjs
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*
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* Copyright 2015-present Chen Fengyuan
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* Released under the MIT license
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*
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* Date: 2023-03-05T07:01:17.741Z
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*/
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(function (global, factory) {
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typeof exports === 'object' && typeof module !== 'undefined' ? module.exports = factory() :
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typeof define === 'function' && define.amd ? define(factory) :
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(global = typeof globalThis !== 'undefined' ? globalThis : global || self, global.Viewer = factory());
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})(this, (function () { 'use strict';
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function ownKeys(object, enumerableOnly) {
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var keys = Object.keys(object);
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||
if (Object.getOwnPropertySymbols) {
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||
var symbols = Object.getOwnPropertySymbols(object);
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||
enumerableOnly && (symbols = symbols.filter(function (sym) {
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||
return Object.getOwnPropertyDescriptor(object, sym).enumerable;
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||
})), keys.push.apply(keys, symbols);
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||
}
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return keys;
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||
}
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function _objectSpread2(target) {
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||
for (var i = 1; i < arguments.length; i++) {
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||
var source = null != arguments[i] ? arguments[i] : {};
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||
i % 2 ? ownKeys(Object(source), !0).forEach(function (key) {
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||
_defineProperty(target, key, source[key]);
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}) : Object.getOwnPropertyDescriptors ? Object.defineProperties(target, Object.getOwnPropertyDescriptors(source)) : ownKeys(Object(source)).forEach(function (key) {
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Object.defineProperty(target, key, Object.getOwnPropertyDescriptor(source, key));
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});
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}
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return target;
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||
}
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function _typeof(obj) {
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||
"@babel/helpers - typeof";
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||
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||
return _typeof = "function" == typeof Symbol && "symbol" == typeof Symbol.iterator ? function (obj) {
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||
return typeof obj;
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||
} : function (obj) {
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||
return obj && "function" == typeof Symbol && obj.constructor === Symbol && obj !== Symbol.prototype ? "symbol" : typeof obj;
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||
}, _typeof(obj);
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||
}
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||
function _classCallCheck(instance, Constructor) {
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||
if (!(instance instanceof Constructor)) {
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||
throw new TypeError("Cannot call a class as a function");
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||
}
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||
}
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||
function _defineProperties(target, props) {
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||
for (var i = 0; i < props.length; i++) {
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var descriptor = props[i];
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descriptor.enumerable = descriptor.enumerable || false;
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descriptor.configurable = true;
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if ("value" in descriptor) descriptor.writable = true;
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Object.defineProperty(target, _toPropertyKey(descriptor.key), descriptor);
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||
}
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}
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function _createClass(Constructor, protoProps, staticProps) {
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||
if (protoProps) _defineProperties(Constructor.prototype, protoProps);
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||
if (staticProps) _defineProperties(Constructor, staticProps);
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Object.defineProperty(Constructor, "prototype", {
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||
writable: false
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||
});
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return Constructor;
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||
}
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function _defineProperty(obj, key, value) {
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key = _toPropertyKey(key);
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||
if (key in obj) {
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||
Object.defineProperty(obj, key, {
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||
value: value,
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||
enumerable: true,
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||
configurable: true,
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||
writable: true
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});
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} else {
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obj[key] = value;
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}
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return obj;
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}
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function _toPrimitive(input, hint) {
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if (typeof input !== "object" || input === null) return input;
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var prim = input[Symbol.toPrimitive];
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if (prim !== undefined) {
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var res = prim.call(input, hint || "default");
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if (typeof res !== "object") return res;
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throw new TypeError("@@toPrimitive must return a primitive value.");
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}
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return (hint === "string" ? String : Number)(input);
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}
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function _toPropertyKey(arg) {
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var key = _toPrimitive(arg, "string");
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||
return typeof key === "symbol" ? key : String(key);
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}
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var DEFAULTS = {
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/**
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* Enable a modal backdrop, specify `static` for a backdrop
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* which doesn't close the modal on click.
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* @type {boolean}
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*/
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backdrop: true,
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/**
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* Show the button on the top-right of the viewer.
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* @type {boolean}
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*/
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button: true,
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/**
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* Show the navbar.
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* @type {boolean | number}
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*/
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navbar: true,
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/**
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* Specify the visibility and the content of the title.
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* @type {boolean | number | Function | Array}
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*/
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title: true,
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/**
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* Show the toolbar.
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* @type {boolean | number | Object}
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*/
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toolbar: true,
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/**
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* Custom class name(s) to add to the viewer's root element.
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* @type {string}
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*/
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className: '',
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/**
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* Define where to put the viewer in modal mode.
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* @type {string | Element}
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*/
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container: 'body',
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/**
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* Filter the images for viewing. Return true if the image is viewable.
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* @type {Function}
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*/
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filter: null,
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/**
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* Enable to request fullscreen when play.
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* {@link https://developer.mozilla.org/en-US/docs/Web/API/FullscreenOptions}
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* @type {boolean|FullscreenOptions}
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*/
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fullscreen: true,
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/**
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* Define the extra attributes to inherit from the original image.
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* @type {Array}
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*/
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inheritedAttributes: ['crossOrigin', 'decoding', 'isMap', 'loading', 'referrerPolicy', 'sizes', 'srcset', 'useMap'],
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/**
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* Define the initial coverage of the viewing image.
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* @type {number}
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*/
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initialCoverage: 0.9,
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/**
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* Define the initial index of the image for viewing.
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* @type {number}
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*/
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initialViewIndex: 0,
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/**
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* Enable inline mode.
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* @type {boolean}
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*/
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inline: false,
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/**
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* The amount of time to delay between automatically cycling an image when playing.
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* @type {number}
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*/
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interval: 5000,
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/**
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* Enable keyboard support.
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* @type {boolean}
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*/
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keyboard: true,
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/**
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* Focus the viewer when initialized.
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||
* @type {boolean}
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*/
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focus: true,
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/**
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* Indicate if show a loading spinner when load image or not.
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* @type {boolean}
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*/
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loading: true,
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/**
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* Indicate if enable loop viewing or not.
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* @type {boolean}
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*/
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loop: true,
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/**
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* Min width of the viewer in inline mode.
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* @type {number}
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*/
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minWidth: 200,
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/**
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* Min height of the viewer in inline mode.
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* @type {number}
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*/
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minHeight: 100,
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/**
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* Enable to move the image.
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* @type {boolean}
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*/
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movable: true,
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/**
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||
* Enable to rotate the image.
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* @type {boolean}
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*/
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rotatable: true,
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/**
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* Enable to scale the image.
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* @type {boolean}
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*/
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scalable: true,
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/**
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||
* Enable to zoom the image.
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* @type {boolean}
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*/
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zoomable: true,
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/**
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||
* Enable to zoom the current image by dragging on the touch screen.
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* @type {boolean}
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*/
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zoomOnTouch: true,
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/**
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* Enable to zoom the image by wheeling mouse.
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* @type {boolean}
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*/
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zoomOnWheel: true,
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/**
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* Enable to slide to the next or previous image by swiping on the touch screen.
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* @type {boolean}
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||
*/
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slideOnTouch: true,
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/**
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* Indicate if toggle the image size between its natural size
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* and initial size when double click on the image or not.
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||
* @type {boolean}
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||
*/
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toggleOnDblclick: true,
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/**
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||
* Show the tooltip with image ratio (percentage) when zoom in or zoom out.
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||
* @type {boolean}
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||
*/
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tooltip: true,
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/**
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||
* Enable CSS3 Transition for some special elements.
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* @type {boolean}
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*/
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transition: true,
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/**
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* Define the CSS `z-index` value of viewer in modal mode.
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* @type {number}
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*/
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zIndex: 2015,
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/**
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* Define the CSS `z-index` value of viewer in inline mode.
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* @type {number}
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*/
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zIndexInline: 0,
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/**
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* Define the ratio when zoom the image by wheeling mouse.
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* @type {number}
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*/
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zoomRatio: 0.1,
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/**
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* Define the min ratio of the image when zoom out.
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* @type {number}
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*/
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minZoomRatio: 0.01,
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/**
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* Define the max ratio of the image when zoom in.
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* @type {number}
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*/
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maxZoomRatio: 100,
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/**
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* Define where to get the original image URL for viewing.
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* @type {string | Function}
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*/
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url: 'src',
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/**
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* Event shortcuts.
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* @type {Function}
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||
*/
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ready: null,
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show: null,
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shown: null,
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hide: null,
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hidden: null,
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view: null,
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viewed: null,
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move: null,
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moved: null,
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rotate: null,
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rotated: null,
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scale: null,
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scaled: null,
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zoom: null,
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zoomed: null,
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play: null,
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||
stop: null
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||
};
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var TEMPLATE = '<div class="viewer-container" tabindex="-1" touch-action="none">' + '<div class="viewer-canvas"></div>' + '<div class="viewer-footer">' + '<div class="viewer-title"></div>' + '<div class="viewer-toolbar"></div>' + '<div class="viewer-navbar">' + '<ul class="viewer-list" role="navigation"></ul>' + '</div>' + '</div>' + '<div class="viewer-tooltip" role="alert" aria-hidden="true"></div>' + '<div class="viewer-button" data-viewer-action="mix" role="button"></div>' + '<div class="viewer-player"></div>' + '</div>';
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var IS_BROWSER = typeof window !== 'undefined' && typeof window.document !== 'undefined';
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var WINDOW = IS_BROWSER ? window : {};
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var IS_TOUCH_DEVICE = IS_BROWSER && WINDOW.document.documentElement ? 'ontouchstart' in WINDOW.document.documentElement : false;
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var HAS_POINTER_EVENT = IS_BROWSER ? 'PointerEvent' in WINDOW : false;
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var NAMESPACE = 'viewer';
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// Actions
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var ACTION_MOVE = 'move';
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var ACTION_SWITCH = 'switch';
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var ACTION_ZOOM = 'zoom';
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// Classes
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var CLASS_ACTIVE = "".concat(NAMESPACE, "-active");
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var CLASS_CLOSE = "".concat(NAMESPACE, "-close");
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var CLASS_FADE = "".concat(NAMESPACE, "-fade");
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var CLASS_FIXED = "".concat(NAMESPACE, "-fixed");
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var CLASS_FULLSCREEN = "".concat(NAMESPACE, "-fullscreen");
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var CLASS_FULLSCREEN_EXIT = "".concat(NAMESPACE, "-fullscreen-exit");
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var CLASS_HIDE = "".concat(NAMESPACE, "-hide");
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var CLASS_HIDE_MD_DOWN = "".concat(NAMESPACE, "-hide-md-down");
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var CLASS_HIDE_SM_DOWN = "".concat(NAMESPACE, "-hide-sm-down");
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var CLASS_HIDE_XS_DOWN = "".concat(NAMESPACE, "-hide-xs-down");
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var CLASS_IN = "".concat(NAMESPACE, "-in");
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var CLASS_INVISIBLE = "".concat(NAMESPACE, "-invisible");
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var CLASS_LOADING = "".concat(NAMESPACE, "-loading");
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var CLASS_MOVE = "".concat(NAMESPACE, "-move");
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var CLASS_OPEN = "".concat(NAMESPACE, "-open");
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var CLASS_SHOW = "".concat(NAMESPACE, "-show");
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||
var CLASS_TRANSITION = "".concat(NAMESPACE, "-transition");
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||
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// Native events
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var EVENT_CLICK = 'click';
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var EVENT_DBLCLICK = 'dblclick';
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var EVENT_DRAG_START = 'dragstart';
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var EVENT_FOCUSIN = 'focusin';
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var EVENT_KEY_DOWN = 'keydown';
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var EVENT_LOAD = 'load';
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var EVENT_ERROR = 'error';
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var EVENT_TOUCH_END = IS_TOUCH_DEVICE ? 'touchend touchcancel' : 'mouseup';
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var EVENT_TOUCH_MOVE = IS_TOUCH_DEVICE ? 'touchmove' : 'mousemove';
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var EVENT_TOUCH_START = IS_TOUCH_DEVICE ? 'touchstart' : 'mousedown';
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||
var EVENT_POINTER_DOWN = HAS_POINTER_EVENT ? 'pointerdown' : EVENT_TOUCH_START;
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var EVENT_POINTER_MOVE = HAS_POINTER_EVENT ? 'pointermove' : EVENT_TOUCH_MOVE;
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||
var EVENT_POINTER_UP = HAS_POINTER_EVENT ? 'pointerup pointercancel' : EVENT_TOUCH_END;
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||
var EVENT_RESIZE = 'resize';
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||
var EVENT_TRANSITION_END = 'transitionend';
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||
var EVENT_WHEEL = 'wheel';
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||
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// Custom events
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||
var EVENT_READY = 'ready';
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||
var EVENT_SHOW = 'show';
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var EVENT_SHOWN = 'shown';
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var EVENT_HIDE = 'hide';
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var EVENT_HIDDEN = 'hidden';
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var EVENT_VIEW = 'view';
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var EVENT_VIEWED = 'viewed';
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var EVENT_MOVE = 'move';
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||
var EVENT_MOVED = 'moved';
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||
var EVENT_ROTATE = 'rotate';
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||
var EVENT_ROTATED = 'rotated';
|
||
var EVENT_SCALE = 'scale';
|
||
var EVENT_SCALED = 'scaled';
|
||
var EVENT_ZOOM = 'zoom';
|
||
var EVENT_ZOOMED = 'zoomed';
|
||
var EVENT_PLAY = 'play';
|
||
var EVENT_STOP = 'stop';
|
||
|
||
// Data keys
|
||
var DATA_ACTION = "".concat(NAMESPACE, "Action");
|
||
|
||
// RegExps
|
||
var REGEXP_SPACES = /\s\s*/;
|
||
|
||
// Misc
|
||
var BUTTONS = ['zoom-in', 'zoom-out', 'one-to-one', 'reset', 'prev', 'play', 'next', 'rotate-left', 'rotate-right', 'flip-horizontal', 'flip-vertical'];
|
||
|
||
/**
|
||
* 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) === '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 (error) {
|
||
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;
|
||
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 = new 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;
|
||
});
|
||
}
|
||
|
||
/**
|
||
* Escape a string for using in HTML.
|
||
* @param {String} value - The string to escape.
|
||
* @returns {String} Returns the escaped string.
|
||
*/
|
||
function escapeHTMLEntities(value) {
|
||
return isString(value) ? value.replace(/&(?!amp;|quot;|#39;|lt;|gt;)/g, '&').replace(/"/g, '"').replace(/'/g, ''').replace(/</g, '<').replace(/>/g, '>') : 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) {
|
||
if (!element || !value) {
|
||
return false;
|
||
}
|
||
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 (!element || !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 = "".concat(className, " ").concat(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 (!element || !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];
|
||
}
|
||
if (element.dataset) {
|
||
return element.dataset[name];
|
||
}
|
||
return element.getAttribute("data-".concat(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-".concat(hyphenate(name)), data);
|
||
}
|
||
}
|
||
var onceSupported = function () {
|
||
var supported = false;
|
||
if (IS_BROWSER) {
|
||
var once = false;
|
||
var listener = function listener() {};
|
||
var options = Object.defineProperty({}, 'once', {
|
||
get: function get() {
|
||
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(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$listeners === void 0 ? {} : _element$listeners;
|
||
_handler = function handler() {
|
||
delete listeners[event][listener];
|
||
element.removeEventListener(event, _handler, options);
|
||
for (var _len2 = arguments.length, args = new Array(_len2), _key2 = 0; _key2 < _len2; _key2++) {
|
||
args[_key2] = arguments[_key2];
|
||
}
|
||
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.
|
||
* @param {Object} options - The additional event options.
|
||
* @returns {boolean} Indicate if the event is default prevented or not.
|
||
*/
|
||
function dispatchEvent(element, type, data, options) {
|
||
var event;
|
||
|
||
// Event and CustomEvent on IE9-11 are global objects, not constructors
|
||
if (isFunction(Event) && isFunction(CustomEvent)) {
|
||
event = new CustomEvent(type, _objectSpread2({
|
||
bubbles: true,
|
||
cancelable: true,
|
||
detail: data
|
||
}, options));
|
||
} 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(".concat(translateX, "px)"));
|
||
}
|
||
if (isNumber(translateY) && translateY !== 0) {
|
||
values.push("translateY(".concat(translateY, "px)"));
|
||
}
|
||
|
||
// Rotate should come first before scale to match orientation transform
|
||
if (isNumber(rotate) && rotate !== 0) {
|
||
values.push("rotate(".concat(rotate, "deg)"));
|
||
}
|
||
if (isNumber(scaleX) && scaleX !== 1) {
|
||
values.push("scaleX(".concat(scaleX, ")"));
|
||
}
|
||
if (isNumber(scaleY) && scaleY !== 1) {
|
||
values.push("scaleY(".concat(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('https://domain.com/path/to/picture.jpg?size=1280×960')
|
||
* @returns {string} A string contains the image name.
|
||
*/
|
||
function getImageNameFromURL(url) {
|
||
return isString(url) ? decodeURIComponent(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 {Object} options - The viewer options.
|
||
* @param {Function} callback - The callback function.
|
||
* @returns {HTMLImageElement} The new image.
|
||
*/
|
||
function getImageNaturalSizes(image, options, 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);
|
||
}
|
||
};
|
||
forEach(options.inheritedAttributes, function (name) {
|
||
var value = image.getAttribute(name);
|
||
if (value !== null) {
|
||
newImage.setAttribute(name, value);
|
||
}
|
||
});
|
||
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 = _objectSpread2({}, 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 : _objectSpread2({
|
||
timeStamp: Date.now(),
|
||
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();
|
||
},
|
||
initBody: function initBody() {
|
||
var ownerDocument = this.element.ownerDocument;
|
||
var body = ownerDocument.body || ownerDocument.documentElement;
|
||
this.body = body;
|
||
this.scrollbarWidth = window.innerWidth - ownerDocument.documentElement.clientWidth;
|
||
this.initialBodyPaddingRight = body.style.paddingRight;
|
||
this.initialBodyComputedPaddingRight = window.getComputedStyle(body).paddingRight;
|
||
},
|
||
initContainer: function initContainer() {
|
||
this.containerData = {
|
||
width: window.innerWidth,
|
||
height: window.innerHeight
|
||
};
|
||
},
|
||
initViewer: function initViewer() {
|
||
var options = this.options,
|
||
parent = this.parent;
|
||
var viewerData;
|
||
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 = [];
|
||
|
||
// initList may be called in this.update, so should keep idempotent
|
||
list.innerHTML = '';
|
||
forEach(this.images, function (image, index) {
|
||
var src = image.src;
|
||
var alt = image.alt || getImageNameFromURL(src);
|
||
var url = _this.getImageURL(image);
|
||
if (src || url) {
|
||
var item = document.createElement('li');
|
||
var img = document.createElement('img');
|
||
forEach(options.inheritedAttributes, function (name) {
|
||
var value = image.getAttribute(name);
|
||
if (value !== null) {
|
||
img.setAttribute(name, value);
|
||
}
|
||
});
|
||
if (options.navbar) {
|
||
img.src = src || url;
|
||
}
|
||
img.alt = alt;
|
||
img.setAttribute('data-original-url', url || src);
|
||
item.setAttribute('data-index', index);
|
||
item.setAttribute('data-viewer-action', 'view');
|
||
item.setAttribute('role', 'button');
|
||
if (options.keyboard) {
|
||
item.setAttribute('tabindex', 0);
|
||
}
|
||
item.appendChild(img);
|
||
list.appendChild(item);
|
||
items.push(item);
|
||
}
|
||
});
|
||
this.items = items;
|
||
forEach(items, function (item) {
|
||
var image = item.firstElementChild;
|
||
var onLoad;
|
||
var onError;
|
||
setData(image, 'filled', true);
|
||
if (options.loading) {
|
||
addClass(item, CLASS_LOADING);
|
||
}
|
||
addListener(image, EVENT_LOAD, onLoad = function onLoad(event) {
|
||
removeListener(image, EVENT_ERROR, onError);
|
||
if (options.loading) {
|
||
removeClass(item, CLASS_LOADING);
|
||
}
|
||
_this.loadImage(event);
|
||
}, {
|
||
once: true
|
||
});
|
||
addListener(image, EVENT_ERROR, onError = function onError() {
|
||
removeListener(image, EVENT_LOAD, onLoad);
|
||
if (options.loading) {
|
||
removeClass(item, CLASS_LOADING);
|
||
}
|
||
}, {
|
||
once: true
|
||
});
|
||
});
|
||
if (options.transition) {
|
||
addListener(element, EVENT_VIEWED, function () {
|
||
addClass(list, CLASS_TRANSITION);
|
||
}, {
|
||
once: true
|
||
});
|
||
}
|
||
},
|
||
renderList: function renderList() {
|
||
var index = this.index;
|
||
var item = this.items[index];
|
||
if (!item) {
|
||
return;
|
||
}
|
||
var next = item.nextElementSibling;
|
||
var gutter = parseInt(window.getComputedStyle(next || item).marginLeft, 10);
|
||
var offsetWidth = item.offsetWidth;
|
||
var outerWidth = offsetWidth + gutter;
|
||
|
||
// Place the active item in the center of the screen
|
||
setStyle(this.list, assign({
|
||
width: outerWidth * this.length - gutter
|
||
}, getTransforms({
|
||
translateX: (this.viewerData.width - offsetWidth) / 2 - outerWidth * index
|
||
})));
|
||
},
|
||
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;
|
||
this.imageInitializing = {
|
||
abort: function abort() {
|
||
sizingImage.onload = null;
|
||
}
|
||
};
|
||
sizingImage = getImageNaturalSizes(image, options, function (naturalWidth, naturalHeight) {
|
||
var aspectRatio = naturalWidth / naturalHeight;
|
||
var initialCoverage = Math.max(0, Math.min(1, options.initialCoverage));
|
||
var width = viewerWidth;
|
||
var height = viewerHeight;
|
||
_this2.imageInitializing = false;
|
||
if (viewerHeight * aspectRatio > viewerWidth) {
|
||
height = viewerWidth / aspectRatio;
|
||
} else {
|
||
width = viewerHeight * aspectRatio;
|
||
}
|
||
initialCoverage = isNumber(initialCoverage) ? initialCoverage : 0.9;
|
||
width = Math.min(width * initialCoverage, naturalWidth);
|
||
height = Math.min(height * initialCoverage, naturalHeight);
|
||
var left = (viewerWidth - width) / 2;
|
||
var top = (viewerHeight - height) / 2;
|
||
var imageData = {
|
||
left: left,
|
||
top: top,
|
||
x: left,
|
||
y: top,
|
||
width: width,
|
||
height: height,
|
||
oldRatio: 1,
|
||
ratio: width / naturalWidth,
|
||
aspectRatio: aspectRatio,
|
||
naturalWidth: naturalWidth,
|
||
naturalHeight: naturalHeight
|
||
};
|
||
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,
|
||
// XXX: Not to use translateX/Y to avoid image shaking when zooming
|
||
marginLeft: imageData.x,
|
||
marginTop: imageData.y
|
||
}, getTransforms(imageData)));
|
||
if (done) {
|
||
if ((this.viewing || this.moving || this.rotating || this.scaling || this.zooming) && this.options.transition && hasClass(image, CLASS_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 options = this.options,
|
||
viewer = this.viewer,
|
||
canvas = this.canvas;
|
||
var document = this.element.ownerDocument;
|
||
addListener(viewer, EVENT_CLICK, this.onClick = this.click.bind(this));
|
||
addListener(viewer, EVENT_DRAG_START, this.onDragStart = this.dragstart.bind(this));
|
||
addListener(canvas, EVENT_POINTER_DOWN, this.onPointerDown = this.pointerdown.bind(this));
|
||
addListener(document, EVENT_POINTER_MOVE, this.onPointerMove = this.pointermove.bind(this));
|
||
addListener(document, EVENT_POINTER_UP, this.onPointerUp = this.pointerup.bind(this));
|
||
addListener(document, EVENT_KEY_DOWN, this.onKeyDown = this.keydown.bind(this));
|
||
addListener(window, EVENT_RESIZE, this.onResize = this.resize.bind(this));
|
||
if (options.zoomable && options.zoomOnWheel) {
|
||
addListener(viewer, EVENT_WHEEL, this.onWheel = this.wheel.bind(this), {
|
||
passive: false,
|
||
capture: true
|
||
});
|
||
}
|
||
if (options.toggleOnDblclick) {
|
||
addListener(canvas, EVENT_DBLCLICK, this.onDblclick = this.dblclick.bind(this));
|
||
}
|
||
},
|
||
unbind: function unbind() {
|
||
var options = this.options,
|
||
viewer = this.viewer,
|
||
canvas = this.canvas;
|
||
var document = this.element.ownerDocument;
|
||
removeListener(viewer, EVENT_CLICK, this.onClick);
|
||
removeListener(viewer, EVENT_DRAG_START, this.onDragStart);
|
||
removeListener(canvas, EVENT_POINTER_DOWN, this.onPointerDown);
|
||
removeListener(document, EVENT_POINTER_MOVE, this.onPointerMove);
|
||
removeListener(document, EVENT_POINTER_UP, this.onPointerUp);
|
||
removeListener(document, EVENT_KEY_DOWN, this.onKeyDown);
|
||
removeListener(window, EVENT_RESIZE, this.onResize);
|
||
if (options.zoomable && options.zoomOnWheel) {
|
||
removeListener(viewer, EVENT_WHEEL, this.onWheel, {
|
||
passive: false,
|
||
capture: true
|
||
});
|
||
}
|
||
if (options.toggleOnDblclick) {
|
||
removeListener(canvas, EVENT_DBLCLICK, this.onDblclick);
|
||
}
|
||
}
|
||
};
|
||
|
||
var handlers = {
|
||
click: function click(event) {
|
||
var options = this.options,
|
||
imageData = this.imageData;
|
||
var target = event.target;
|
||
var action = getData(target, DATA_ACTION);
|
||
if (!action && target.localName === 'img' && target.parentElement.localName === 'li') {
|
||
target = target.parentElement;
|
||
action = getData(target, DATA_ACTION);
|
||
}
|
||
|
||
// Cancel the emulated click when the native click event was triggered.
|
||
if (IS_TOUCH_DEVICE && event.isTrusted && target === this.canvas) {
|
||
clearTimeout(this.clickCanvasTimeout);
|
||
}
|
||
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':
|
||
if (!this.pointerMoved) {
|
||
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();
|
||
}
|
||
}
|
||
},
|
||
dblclick: function dblclick(event) {
|
||
event.preventDefault();
|
||
if (this.viewed && event.target === this.image) {
|
||
// Cancel the emulated double click when the native dblclick event was triggered.
|
||
if (IS_TOUCH_DEVICE && event.isTrusted) {
|
||
clearTimeout(this.doubleClickImageTimeout);
|
||
}
|
||
|
||
// XXX: No pageX/Y properties in custom event, fallback to the original event.
|
||
this.toggle(event.isTrusted ? event : event.detail && event.detail.originalEvent);
|
||
}
|
||
},
|
||
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:".concat(viewerData.width / 2, "px;") + "margin-top:".concat(viewerData.height / 2, "px;") + 'max-width:none!important;' + 'position:relative;' + '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
|
||
}, {
|
||
cancelable: false
|
||
});
|
||
});
|
||
});
|
||
},
|
||
loadImage: function loadImage(event) {
|
||
var image = event.target;
|
||
var parent = image.parentNode;
|
||
var parentWidth = parent.offsetWidth || 30;
|
||
var parentHeight = parent.offsetHeight || 50;
|
||
var filled = !!getData(image, 'filled');
|
||
getImageNaturalSizes(image, this.options, 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(event) {
|
||
var options = this.options;
|
||
if (!options.keyboard) {
|
||
return;
|
||
}
|
||
var keyCode = event.keyCode || event.which || event.charCode;
|
||
switch (keyCode) {
|
||
// Enter
|
||
case 13:
|
||
if (this.viewer.contains(event.target)) {
|
||
this.click(event);
|
||
}
|
||
break;
|
||
}
|
||
if (!this.fulled) {
|
||
return;
|
||
}
|
||
switch (keyCode) {
|
||
// 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:
|
||
if (this.played && this.playing) {
|
||
this.playing.prev();
|
||
} else {
|
||
this.prev(options.loop);
|
||
}
|
||
break;
|
||
|
||
// ArrowUp
|
||
case 38:
|
||
// Prevent scroll on Firefox
|
||
event.preventDefault();
|
||
|
||
// Zoom in
|
||
this.zoom(options.zoomRatio, true);
|
||
break;
|
||
|
||
// ArrowRight
|
||
case 39:
|
||
if (this.played && this.playing) {
|
||
this.playing.next();
|
||
} else {
|
||
this.next(options.loop);
|
||
}
|
||
break;
|
||
|
||
// ArrowDown
|
||
case 40:
|
||
// Prevent scroll on Firefox
|
||
event.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 (event.ctrlKey) {
|
||
event.preventDefault();
|
||
this.toggle();
|
||
}
|
||
break;
|
||
}
|
||
},
|
||
dragstart: function dragstart(event) {
|
||
if (event.target.localName === 'img') {
|
||
event.preventDefault();
|
||
}
|
||
},
|
||
pointerdown: function pointerdown(event) {
|
||
var options = this.options,
|
||
pointers = this.pointers;
|
||
var buttons = event.buttons,
|
||
button = event.button;
|
||
this.pointerMoved = false;
|
||
if (!this.viewed || this.showing || this.viewing || this.hiding
|
||
|
||
// Handle mouse event and pointer event and ignore touch event
|
||
|| (event.type === 'mousedown' || event.type === 'pointerdown' && event.pointerType === 'mouse') && (
|
||
// No primary button (Usually the left button)
|
||
isNumber(buttons) && buttons !== 1 || isNumber(button) && button !== 0
|
||
|
||
// Open context menu
|
||
|| event.ctrlKey)) {
|
||
return;
|
||
}
|
||
|
||
// Prevent default behaviours as page zooming in touch devices.
|
||
event.preventDefault();
|
||
if (event.changedTouches) {
|
||
forEach(event.changedTouches, function (touch) {
|
||
pointers[touch.identifier] = getPointer(touch);
|
||
});
|
||
} else {
|
||
pointers[event.pointerId || 0] = getPointer(event);
|
||
}
|
||
var action = options.movable ? ACTION_MOVE : false;
|
||
if (options.zoomOnTouch && options.zoomable && Object.keys(pointers).length > 1) {
|
||
action = ACTION_ZOOM;
|
||
} else if (options.slideOnTouch && (event.pointerType === 'touch' || event.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(event) {
|
||
var pointers = this.pointers,
|
||
action = this.action;
|
||
if (!this.viewed || !action) {
|
||
return;
|
||
}
|
||
event.preventDefault();
|
||
if (event.changedTouches) {
|
||
forEach(event.changedTouches, function (touch) {
|
||
assign(pointers[touch.identifier] || {}, getPointer(touch, true));
|
||
});
|
||
} else {
|
||
assign(pointers[event.pointerId || 0] || {}, getPointer(event, true));
|
||
}
|
||
this.change(event);
|
||
},
|
||
pointerup: function pointerup(event) {
|
||
var _this2 = this;
|
||
var options = this.options,
|
||
action = this.action,
|
||
pointers = this.pointers;
|
||
var pointer;
|
||
if (event.changedTouches) {
|
||
forEach(event.changedTouches, function (touch) {
|
||
pointer = pointers[touch.identifier];
|
||
delete pointers[touch.identifier];
|
||
});
|
||
} else {
|
||
pointer = pointers[event.pointerId || 0];
|
||
delete pointers[event.pointerId || 0];
|
||
}
|
||
if (!action) {
|
||
return;
|
||
}
|
||
event.preventDefault();
|
||
if (options.transition && (action === ACTION_MOVE || action === ACTION_ZOOM)) {
|
||
addClass(this.image, CLASS_TRANSITION);
|
||
}
|
||
this.action = false;
|
||
|
||
// Emulate click and double click in touch devices to support backdrop and image zooming (#210).
|
||
if (IS_TOUCH_DEVICE && action !== ACTION_ZOOM && pointer && Date.now() - pointer.timeStamp < 500) {
|
||
clearTimeout(this.clickCanvasTimeout);
|
||
clearTimeout(this.doubleClickImageTimeout);
|
||
if (options.toggleOnDblclick && this.viewed && event.target === this.image) {
|
||
if (this.imageClicked) {
|
||
this.imageClicked = false;
|
||
|
||
// This timeout will be cleared later when a native dblclick event is triggering
|
||
this.doubleClickImageTimeout = setTimeout(function () {
|
||
dispatchEvent(_this2.image, EVENT_DBLCLICK, {
|
||
originalEvent: event
|
||
});
|
||
}, 50);
|
||
} else {
|
||
this.imageClicked = true;
|
||
|
||
// The default timing of a double click in Windows is 500 ms
|
||
this.doubleClickImageTimeout = setTimeout(function () {
|
||
_this2.imageClicked = false;
|
||
}, 500);
|
||
}
|
||
} else {
|
||
this.imageClicked = false;
|
||
if (options.backdrop && options.backdrop !== 'static' && event.target === this.canvas) {
|
||
// This timeout will be cleared later when a native click event is triggering
|
||
this.clickCanvasTimeout = setTimeout(function () {
|
||
dispatchEvent(_this2.canvas, EVENT_CLICK, {
|
||
originalEvent: event
|
||
});
|
||
}, 50);
|
||
}
|
||
}
|
||
}
|
||
},
|
||
resize: function resize() {
|
||
var _this3 = this;
|
||
if (!this.isShown || this.hiding) {
|
||
return;
|
||
}
|
||
if (this.fulled) {
|
||
this.close();
|
||
this.initBody();
|
||
this.open();
|
||
}
|
||
this.initContainer();
|
||
this.initViewer();
|
||
this.renderViewer();
|
||
this.renderList();
|
||
if (this.viewed) {
|
||
this.initImage(function () {
|
||
_this3.renderImage();
|
||
});
|
||
}
|
||
if (this.played) {
|
||
if (this.options.fullscreen && this.fulled && !(document.fullscreenElement || document.webkitFullscreenElement || document.mozFullScreenElement || document.msFullscreenElement)) {
|
||
this.stop();
|
||
return;
|
||
}
|
||
forEach(this.player.getElementsByTagName('img'), function (image) {
|
||
addListener(image, EVENT_LOAD, _this3.loadImage.bind(_this3), {
|
||
once: true
|
||
});
|
||
dispatchEvent(image, EVENT_LOAD);
|
||
});
|
||
}
|
||
},
|
||
wheel: function wheel(event) {
|
||
var _this4 = this;
|
||
if (!this.viewed) {
|
||
return;
|
||
}
|
||
event.preventDefault();
|
||
|
||
// Limit wheel speed to prevent zoom too fast
|
||
if (this.wheeling) {
|
||
return;
|
||
}
|
||
this.wheeling = true;
|
||
setTimeout(function () {
|
||
_this4.wheeling = false;
|
||
}, 50);
|
||
var ratio = Number(this.options.zoomRatio) || 0.1;
|
||
var delta = 1;
|
||
if (event.deltaY) {
|
||
delta = event.deltaY > 0 ? 1 : -1;
|
||
} else if (event.wheelDelta) {
|
||
delta = -event.wheelDelta / 120;
|
||
} else if (event.detail) {
|
||
delta = event.detail > 0 ? 1 : -1;
|
||
}
|
||
this.zoom(-delta * ratio, true, null, event);
|
||
}
|
||
};
|
||
|
||
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);
|
||
viewer.setAttribute('role', 'dialog');
|
||
viewer.setAttribute('aria-labelledby', this.title.id);
|
||
viewer.setAttribute('aria-modal', true);
|
||
viewer.removeAttribute('aria-hidden');
|
||
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
|
||
viewer.initialOffsetWidth = 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 _this = this;
|
||
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,
|
||
image = this.image;
|
||
var hideImmediately = function hideImmediately() {
|
||
removeClass(viewer, CLASS_IN);
|
||
_this.hidden();
|
||
};
|
||
if (options.transition && !immediate) {
|
||
var onViewerTransitionEnd = function onViewerTransitionEnd(event) {
|
||
// Ignore all propagating `transitionend` events (#275).
|
||
if (event && event.target === viewer) {
|
||
removeListener(viewer, EVENT_TRANSITION_END, onViewerTransitionEnd);
|
||
_this.hidden();
|
||
}
|
||
};
|
||
var onImageTransitionEnd = function onImageTransitionEnd() {
|
||
// In case of show the viewer by `viewer.show(true)` previously (#407).
|
||
if (hasClass(viewer, CLASS_TRANSITION)) {
|
||
addListener(viewer, EVENT_TRANSITION_END, onViewerTransitionEnd);
|
||
removeClass(viewer, CLASS_IN);
|
||
} else {
|
||
hideImmediately();
|
||
}
|
||
};
|
||
this.transitioning = {
|
||
abort: function abort() {
|
||
if (_this.viewed && hasClass(image, CLASS_TRANSITION)) {
|
||
removeListener(image, EVENT_TRANSITION_END, onImageTransitionEnd);
|
||
} else if (hasClass(viewer, CLASS_TRANSITION)) {
|
||
removeListener(viewer, EVENT_TRANSITION_END, onViewerTransitionEnd);
|
||
}
|
||
}
|
||
};
|
||
|
||
// In case of hiding the viewer when holding on the image (#255),
|
||
// note that the `CLASS_TRANSITION` class will be removed on pointer down.
|
||
if (this.viewed && hasClass(image, CLASS_TRANSITION)) {
|
||
addListener(image, EVENT_TRANSITION_END, onImageTransitionEnd, {
|
||
once: true
|
||
});
|
||
this.zoomTo(0, false, null, null, true);
|
||
} else {
|
||
onImageTransitionEnd();
|
||
}
|
||
} else {
|
||
hideImmediately();
|
||
}
|
||
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 _this2 = this;
|
||
var index = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : this.options.initialViewIndex;
|
||
index = Number(index) || 0;
|
||
if (this.hiding || this.played || index < 0 || index >= this.length || this.viewed && index === this.index) {
|
||
return this;
|
||
}
|
||
if (!this.isShown) {
|
||
this.index = index;
|
||
return this.show();
|
||
}
|
||
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 url = getData(img, 'originalUrl');
|
||
var alt = img.getAttribute('alt');
|
||
var image = document.createElement('img');
|
||
forEach(options.inheritedAttributes, function (name) {
|
||
var value = img.getAttribute(name);
|
||
if (value !== null) {
|
||
image.setAttribute(name, value);
|
||
}
|
||
});
|
||
image.src = url;
|
||
image.alt = alt;
|
||
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;
|
||
}
|
||
var activeItem = this.items[this.index];
|
||
if (activeItem) {
|
||
removeClass(activeItem, CLASS_ACTIVE);
|
||
activeItem.removeAttribute('aria-selected');
|
||
}
|
||
addClass(item, CLASS_ACTIVE);
|
||
item.setAttribute('aria-selected', true);
|
||
if (options.focus) {
|
||
item.focus();
|
||
}
|
||
this.image = image;
|
||
this.viewed = false;
|
||
this.index = index;
|
||
this.imageData = {};
|
||
addClass(image, CLASS_INVISIBLE);
|
||
if (options.loading) {
|
||
addClass(canvas, CLASS_LOADING);
|
||
}
|
||
canvas.innerHTML = '';
|
||
canvas.appendChild(image);
|
||
|
||
// Center current item
|
||
this.renderList();
|
||
|
||
// Clear title
|
||
title.innerHTML = '';
|
||
|
||
// Generate title after viewed
|
||
var onViewed = function onViewed() {
|
||
var imageData = _this2.imageData;
|
||
var render = Array.isArray(options.title) ? options.title[1] : options.title;
|
||
title.innerHTML = escapeHTMLEntities(isFunction(render) ? render.call(_this2, image, imageData) : "".concat(alt, " (").concat(imageData.naturalWidth, " \xD7 ").concat(imageData.naturalHeight, ")"));
|
||
};
|
||
var onLoad;
|
||
var onError;
|
||
addListener(element, EVENT_VIEWED, onViewed, {
|
||
once: true
|
||
});
|
||
this.viewing = {
|
||
abort: function abort() {
|
||
removeListener(element, EVENT_VIEWED, onViewed);
|
||
if (image.complete) {
|
||
if (_this2.imageRendering) {
|
||
_this2.imageRendering.abort();
|
||
} else if (_this2.imageInitializing) {
|
||
_this2.imageInitializing.abort();
|
||
}
|
||
} else {
|
||
// Cancel download to save bandwidth.
|
||
image.src = '';
|
||
removeListener(image, EVENT_LOAD, onLoad);
|
||
if (_this2.timeout) {
|
||
clearTimeout(_this2.timeout);
|
||
}
|
||
}
|
||
}
|
||
};
|
||
if (image.complete) {
|
||
this.load();
|
||
} else {
|
||
addListener(image, EVENT_LOAD, onLoad = function onLoad() {
|
||
removeListener(image, EVENT_ERROR, onError);
|
||
_this2.load();
|
||
}, {
|
||
once: true
|
||
});
|
||
addListener(image, EVENT_ERROR, onError = function onError() {
|
||
removeListener(image, EVENT_LOAD, onLoad);
|
||
if (_this2.timeout) {
|
||
clearTimeout(_this2.timeout);
|
||
_this2.timeout = false;
|
||
}
|
||
removeClass(image, CLASS_INVISIBLE);
|
||
if (options.loading) {
|
||
removeClass(_this2.canvas, CLASS_LOADING);
|
||
}
|
||
}, {
|
||
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);
|
||
_this2.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} x - The moving distance in the horizontal direction.
|
||
* @param {number} [y=x] The moving distance in the vertical direction.
|
||
* @returns {Viewer} this
|
||
*/
|
||
move: function move(x) {
|
||
var y = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : x;
|
||
var imageData = this.imageData;
|
||
this.moveTo(isUndefined(x) ? x : imageData.x + Number(x), isUndefined(y) ? y : imageData.y + Number(y));
|
||
return this;
|
||
},
|
||
/**
|
||
* Move the image to an absolute point.
|
||
* @param {number} x - The new position in the horizontal direction.
|
||
* @param {number} [y=x] - The new position in the vertical direction.
|
||
* @param {Event} [_originalEvent=null] - The original event if any.
|
||
* @returns {Viewer} this
|
||
*/
|
||
moveTo: function moveTo(x) {
|
||
var _this3 = this;
|
||
var y = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : x;
|
||
var _originalEvent = arguments.length > 2 && arguments[2] !== undefined ? arguments[2] : null;
|
||
var element = this.element,
|
||
options = this.options,
|
||
imageData = this.imageData;
|
||
x = Number(x);
|
||
y = Number(y);
|
||
if (this.viewed && !this.played && options.movable) {
|
||
var oldX = imageData.x;
|
||
var oldY = imageData.y;
|
||
var changed = false;
|
||
if (isNumber(x)) {
|
||
changed = true;
|
||
} else {
|
||
x = oldX;
|
||
}
|
||
if (isNumber(y)) {
|
||
changed = true;
|
||
} else {
|
||
y = oldY;
|
||
}
|
||
if (changed) {
|
||
if (isFunction(options.move)) {
|
||
addListener(element, EVENT_MOVE, options.move, {
|
||
once: true
|
||
});
|
||
}
|
||
if (dispatchEvent(element, EVENT_MOVE, {
|
||
x: x,
|
||
y: y,
|
||
oldX: oldX,
|
||
oldY: oldY,
|
||
originalEvent: _originalEvent
|
||
}) === false) {
|
||
return this;
|
||
}
|
||
imageData.x = x;
|
||
imageData.y = y;
|
||
imageData.left = x;
|
||
imageData.top = y;
|
||
this.moving = true;
|
||
this.renderImage(function () {
|
||
_this3.moving = false;
|
||
if (isFunction(options.moved)) {
|
||
addListener(element, EVENT_MOVED, options.moved, {
|
||
once: true
|
||
});
|
||
}
|
||
dispatchEvent(element, EVENT_MOVED, {
|
||
x: x,
|
||
y: y,
|
||
oldX: oldX,
|
||
oldY: oldY,
|
||
originalEvent: _originalEvent
|
||
}, {
|
||
cancelable: false
|
||
});
|
||
});
|
||
}
|
||
}
|
||
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 _this4 = this;
|
||
var element = this.element,
|
||
options = this.options,
|
||
imageData = this.imageData;
|
||
degree = Number(degree);
|
||
if (isNumber(degree) && this.viewed && !this.played && options.rotatable) {
|
||
var oldDegree = imageData.rotate;
|
||
if (isFunction(options.rotate)) {
|
||
addListener(element, EVENT_ROTATE, options.rotate, {
|
||
once: true
|
||
});
|
||
}
|
||
if (dispatchEvent(element, EVENT_ROTATE, {
|
||
degree: degree,
|
||
oldDegree: oldDegree
|
||
}) === false) {
|
||
return this;
|
||
}
|
||
imageData.rotate = degree;
|
||
this.rotating = true;
|
||
this.renderImage(function () {
|
||
_this4.rotating = false;
|
||
if (isFunction(options.rotated)) {
|
||
addListener(element, EVENT_ROTATED, options.rotated, {
|
||
once: true
|
||
});
|
||
}
|
||
dispatchEvent(element, EVENT_ROTATED, {
|
||
degree: degree,
|
||
oldDegree: oldDegree
|
||
}, {
|
||
cancelable: false
|
||
});
|
||
});
|
||
}
|
||
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 _this5 = this;
|
||
var scaleY = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : scaleX;
|
||
var element = this.element,
|
||
options = this.options,
|
||
imageData = this.imageData;
|
||
scaleX = Number(scaleX);
|
||
scaleY = Number(scaleY);
|
||
if (this.viewed && !this.played && options.scalable) {
|
||
var oldScaleX = imageData.scaleX;
|
||
var oldScaleY = imageData.scaleY;
|
||
var changed = false;
|
||
if (isNumber(scaleX)) {
|
||
changed = true;
|
||
} else {
|
||
scaleX = oldScaleX;
|
||
}
|
||
if (isNumber(scaleY)) {
|
||
changed = true;
|
||
} else {
|
||
scaleY = oldScaleY;
|
||
}
|
||
if (changed) {
|
||
if (isFunction(options.scale)) {
|
||
addListener(element, EVENT_SCALE, options.scale, {
|
||
once: true
|
||
});
|
||
}
|
||
if (dispatchEvent(element, EVENT_SCALE, {
|
||
scaleX: scaleX,
|
||
scaleY: scaleY,
|
||
oldScaleX: oldScaleX,
|
||
oldScaleY: oldScaleY
|
||
}) === false) {
|
||
return this;
|
||
}
|
||
imageData.scaleX = scaleX;
|
||
imageData.scaleY = scaleY;
|
||
this.scaling = true;
|
||
this.renderImage(function () {
|
||
_this5.scaling = false;
|
||
if (isFunction(options.scaled)) {
|
||
addListener(element, EVENT_SCALED, options.scaled, {
|
||
once: true
|
||
});
|
||
}
|
||
dispatchEvent(element, EVENT_SCALED, {
|
||
scaleX: scaleX,
|
||
scaleY: scaleY,
|
||
oldScaleX: oldScaleX,
|
||
oldScaleY: oldScaleY
|
||
}, {
|
||
cancelable: false
|
||
});
|
||
});
|
||
}
|
||
}
|
||
return this;
|
||
},
|
||
/**
|
||
* Zoom the image with a relative ratio.
|
||
* @param {number} ratio - The target ratio.
|
||
* @param {boolean} [showTooltip=false] - Indicates whether to show the tooltip.
|
||
* @param {Object} [pivot] - The pivot point coordinate for zooming.
|
||
* @param {Event} [_originalEvent=null] - The original event if any.
|
||
* @returns {Viewer} this
|
||
*/
|
||
zoom: function zoom(ratio) {
|
||
var showTooltip = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : false;
|
||
var pivot = arguments.length > 2 && arguments[2] !== undefined ? arguments[2] : null;
|
||
var _originalEvent = arguments.length > 3 && arguments[3] !== undefined ? arguments[3] : 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, showTooltip, pivot, _originalEvent);
|
||
return this;
|
||
},
|
||
/**
|
||
* Zoom the image to an absolute ratio.
|
||
* @param {number} ratio - The target ratio.
|
||
* @param {boolean} [showTooltip] - Indicates whether to show the tooltip.
|
||
* @param {Object} [pivot] - The pivot point coordinate for zooming.
|
||
* @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 _this6 = this;
|
||
var showTooltip = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : false;
|
||
var pivot = arguments.length > 2 && arguments[2] !== undefined ? arguments[2] : null;
|
||
var _originalEvent = arguments.length > 3 && arguments[3] !== undefined ? arguments[3] : null;
|
||
var _zoomable = arguments.length > 4 && arguments[4] !== undefined ? arguments[4] : false;
|
||
var element = this.element,
|
||
options = this.options,
|
||
pointers = this.pointers,
|
||
imageData = this.imageData;
|
||
var x = imageData.x,
|
||
y = imageData.y,
|
||
width = imageData.width,
|
||
height = imageData.height,
|
||
naturalWidth = imageData.naturalWidth,
|
||
naturalHeight = imageData.naturalHeight;
|
||
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) {
|
||
switch (_originalEvent.type) {
|
||
case 'wheel':
|
||
if (options.zoomRatio >= 0.055 && ratio > 0.95 && ratio < 1.05) {
|
||
ratio = 1;
|
||
}
|
||
break;
|
||
case 'pointermove':
|
||
case 'touchmove':
|
||
case 'mousemove':
|
||
if (ratio > 0.99 && ratio < 1.01) {
|
||
ratio = 1;
|
||
}
|
||
break;
|
||
}
|
||
}
|
||
var newWidth = naturalWidth * ratio;
|
||
var newHeight = naturalHeight * ratio;
|
||
var offsetWidth = newWidth - width;
|
||
var offsetHeight = newHeight - height;
|
||
var oldRatio = imageData.ratio;
|
||
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 > 0 ? getPointersCenter(pointers) : {
|
||
pageX: _originalEvent.pageX,
|
||
pageY: _originalEvent.pageY
|
||
};
|
||
|
||
// Zoom from the triggering point of the event
|
||
imageData.x -= offsetWidth * ((center.pageX - offset.left - x) / width);
|
||
imageData.y -= offsetHeight * ((center.pageY - offset.top - y) / height);
|
||
} else if (isPlainObject(pivot) && isNumber(pivot.x) && isNumber(pivot.y)) {
|
||
imageData.x -= offsetWidth * ((pivot.x - x) / width);
|
||
imageData.y -= offsetHeight * ((pivot.y - y) / height);
|
||
} else {
|
||
// Zoom from the center of the image
|
||
imageData.x -= offsetWidth / 2;
|
||
imageData.y -= offsetHeight / 2;
|
||
}
|
||
imageData.left = imageData.x;
|
||
imageData.top = imageData.y;
|
||
imageData.width = newWidth;
|
||
imageData.height = newHeight;
|
||
imageData.oldRatio = oldRatio;
|
||
imageData.ratio = ratio;
|
||
this.renderImage(function () {
|
||
_this6.zooming = false;
|
||
if (isFunction(options.zoomed)) {
|
||
addListener(element, EVENT_ZOOMED, options.zoomed, {
|
||
once: true
|
||
});
|
||
}
|
||
dispatchEvent(element, EVENT_ZOOMED, {
|
||
ratio: ratio,
|
||
oldRatio: oldRatio,
|
||
originalEvent: _originalEvent
|
||
}, {
|
||
cancelable: false
|
||
});
|
||
});
|
||
if (showTooltip) {
|
||
this.tooltip();
|
||
}
|
||
}
|
||
return this;
|
||
},
|
||
/**
|
||
* Play the images
|
||
* @param {boolean|FullscreenOptions} [fullscreen=false] - Indicate if request fullscreen or not.
|
||
* @returns {Viewer} this
|
||
*/
|
||
play: function play() {
|
||
var _this7 = this;
|
||
var fullscreen = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : false;
|
||
if (!this.isShown || this.played) {
|
||
return this;
|
||
}
|
||
var element = this.element,
|
||
options = this.options;
|
||
if (isFunction(options.play)) {
|
||
addListener(element, EVENT_PLAY, options.play, {
|
||
once: true
|
||
});
|
||
}
|
||
if (dispatchEvent(element, EVENT_PLAY) === false) {
|
||
return this;
|
||
}
|
||
var 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(fullscreen);
|
||
}
|
||
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');
|
||
image.referrerPolicy = img.referrerPolicy;
|
||
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 prev = function prev() {
|
||
clearTimeout(_this7.playing.timeout);
|
||
removeClass(list[index], CLASS_IN);
|
||
index -= 1;
|
||
index = index >= 0 ? index : total - 1;
|
||
addClass(list[index], CLASS_IN);
|
||
_this7.playing.timeout = setTimeout(prev, options.interval);
|
||
};
|
||
var next = function next() {
|
||
clearTimeout(_this7.playing.timeout);
|
||
removeClass(list[index], CLASS_IN);
|
||
index += 1;
|
||
index = index < total ? index : 0;
|
||
addClass(list[index], CLASS_IN);
|
||
_this7.playing.timeout = setTimeout(next, options.interval);
|
||
};
|
||
if (total > 1) {
|
||
this.playing = {
|
||
prev: prev,
|
||
next: next,
|
||
timeout: setTimeout(next, options.interval)
|
||
};
|
||
}
|
||
}
|
||
return this;
|
||
},
|
||
// Stop play
|
||
stop: function stop() {
|
||
var _this8 = this;
|
||
if (!this.played) {
|
||
return this;
|
||
}
|
||
var element = this.element,
|
||
options = this.options;
|
||
if (isFunction(options.stop)) {
|
||
addListener(element, EVENT_STOP, options.stop, {
|
||
once: true
|
||
});
|
||
}
|
||
if (dispatchEvent(element, EVENT_STOP) === false) {
|
||
return this;
|
||
}
|
||
var player = this.player;
|
||
clearTimeout(this.playing.timeout);
|
||
this.playing = false;
|
||
this.played = false;
|
||
forEach(player.getElementsByTagName('img'), function (image) {
|
||
removeListener(image, EVENT_LOAD, _this8.onLoadWhenPlay);
|
||
});
|
||
removeClass(player, CLASS_SHOW);
|
||
player.innerHTML = '';
|
||
this.exitFullscreen();
|
||
return this;
|
||
},
|
||
// Enter modal mode (only available in inline mode)
|
||
full: function full() {
|
||
var _this9 = 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('role', 'dialog');
|
||
viewer.setAttribute('aria-labelledby', this.title.id);
|
||
viewer.setAttribute('aria-modal', true);
|
||
viewer.removeAttribute('style');
|
||
setStyle(viewer, {
|
||
zIndex: options.zIndex
|
||
});
|
||
if (options.focus) {
|
||
this.enforceFocus();
|
||
}
|
||
this.initContainer();
|
||
this.viewerData = assign({}, this.containerData);
|
||
this.renderList();
|
||
if (this.viewed) {
|
||
this.initImage(function () {
|
||
_this9.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 _this10 = 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);
|
||
}
|
||
}
|
||
if (options.focus) {
|
||
this.clearEnforceFocus();
|
||
}
|
||
viewer.removeAttribute('role');
|
||
viewer.removeAttribute('aria-labelledby');
|
||
viewer.removeAttribute('aria-modal');
|
||
removeClass(viewer, CLASS_FIXED);
|
||
setStyle(viewer, {
|
||
zIndex: options.zIndexInline
|
||
});
|
||
this.viewerData = assign({}, this.parentData);
|
||
this.renderViewer();
|
||
this.renderList();
|
||
if (this.viewed) {
|
||
this.initImage(function () {
|
||
_this10.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 _this11 = this;
|
||
var options = this.options,
|
||
tooltipBox = this.tooltipBox,
|
||
imageData = this.imageData;
|
||
if (!this.viewed || this.played || !options.tooltip) {
|
||
return this;
|
||
}
|
||
tooltipBox.textContent = "".concat(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);
|
||
tooltipBox.removeAttribute('aria-hidden');
|
||
|
||
// Force reflow to enable CSS3 transition
|
||
tooltipBox.initialOffsetWidth = tooltipBox.offsetWidth;
|
||
addClass(tooltipBox, CLASS_IN);
|
||
} else {
|
||
addClass(tooltipBox, CLASS_SHOW);
|
||
tooltipBox.removeAttribute('aria-hidden');
|
||
}
|
||
} 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);
|
||
tooltipBox.setAttribute('aria-hidden', true);
|
||
_this11.fading = false;
|
||
}, {
|
||
once: true
|
||
});
|
||
removeClass(tooltipBox, CLASS_IN);
|
||
_this11.fading = true;
|
||
} else {
|
||
removeClass(tooltipBox, CLASS_SHOW);
|
||
tooltipBox.setAttribute('aria-hidden', true);
|
||
}
|
||
_this11.tooltipping = false;
|
||
}, 1000);
|
||
return this;
|
||
},
|
||
/**
|
||
* Toggle the image size between its current size and natural size
|
||
* @param {Event} [_originalEvent=null] - The original event if any.
|
||
* @returns {Viewer} this
|
||
*/
|
||
toggle: function toggle() {
|
||
var _originalEvent = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : null;
|
||
if (this.imageData.ratio === 1) {
|
||
this.zoomTo(this.imageData.oldRatio, true, null, _originalEvent);
|
||
} else {
|
||
this.zoomTo(1, true, null, _originalEvent);
|
||
}
|
||
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 _this12 = this;
|
||
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 (isFunction(options.filter)) {
|
||
if (options.filter.call(_this12, image)) {
|
||
images.push(image);
|
||
}
|
||
} else if (_this12.getImageURL(image)) {
|
||
images.push(image);
|
||
}
|
||
});
|
||
if (!images.length) {
|
||
return this;
|
||
}
|
||
this.images = images;
|
||
this.length = images.length;
|
||
if (this.ready) {
|
||
var changedIndexes = [];
|
||
forEach(this.items, function (item, i) {
|
||
var img = item.querySelector('img');
|
||
var image = images[i];
|
||
if (image && img) {
|
||
if (image.src !== img.src
|
||
|
||
// Title changed (#408)
|
||
|| image.alt !== img.alt) {
|
||
changedIndexes.push(i);
|
||
}
|
||
} else {
|
||
changedIndexes.push(i);
|
||
}
|
||
});
|
||
setStyle(this.list, {
|
||
width: 'auto'
|
||
});
|
||
this.initList();
|
||
if (this.isShown) {
|
||
if (this.length) {
|
||
if (this.viewed) {
|
||
var changedIndex = changedIndexes.indexOf(this.index);
|
||
if (changedIndex >= 0) {
|
||
this.viewed = false;
|
||
this.view(Math.max(Math.min(this.index - changedIndex, this.length - 1), 0));
|
||
} else {
|
||
var activeItem = this.items[this.index];
|
||
|
||
// Reactivate the current viewing item after reset the list.
|
||
addClass(activeItem, CLASS_ACTIVE);
|
||
activeItem.setAttribute('aria-selected', true);
|
||
}
|
||
}
|
||
} 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 (!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);
|
||
}
|
||
element[NAMESPACE] = undefined;
|
||
return this;
|
||
}
|
||
};
|
||
|
||
var others = {
|
||
getImageURL: function getImageURL(image) {
|
||
var url = this.options.url;
|
||
if (isString(url)) {
|
||
url = image.getAttribute(url);
|
||
} else if (isFunction(url)) {
|
||
url = url.call(this, image);
|
||
} else {
|
||
url = '';
|
||
}
|
||
return url;
|
||
},
|
||
enforceFocus: function enforceFocus() {
|
||
var _this = this;
|
||
this.clearEnforceFocus();
|
||
addListener(document, EVENT_FOCUSIN, this.onFocusin = function (event) {
|
||
var viewer = _this.viewer;
|
||
var target = event.target;
|
||
if (target === document || target === viewer || viewer.contains(target)) {
|
||
return;
|
||
}
|
||
while (target) {
|
||
// Avoid conflicts with other modals (#474, #540)
|
||
if (target.getAttribute('tabindex') !== null || target.getAttribute('aria-modal') === 'true') {
|
||
return;
|
||
}
|
||
target = target.parentElement;
|
||
}
|
||
viewer.focus();
|
||
});
|
||
},
|
||
clearEnforceFocus: function clearEnforceFocus() {
|
||
if (this.onFocusin) {
|
||
removeListener(document, EVENT_FOCUSIN, this.onFocusin);
|
||
this.onFocusin = null;
|
||
}
|
||
},
|
||
open: function open() {
|
||
var body = this.body;
|
||
addClass(body, CLASS_OPEN);
|
||
if (this.scrollbarWidth > 0) {
|
||
body.style.paddingRight = "".concat(this.scrollbarWidth + (parseFloat(this.initialBodyComputedPaddingRight) || 0), "px");
|
||
}
|
||
},
|
||
close: function close() {
|
||
var body = this.body;
|
||
removeClass(body, CLASS_OPEN);
|
||
if (this.scrollbarWidth > 0) {
|
||
body.style.paddingRight = this.initialBodyPaddingRight;
|
||
}
|
||
},
|
||
shown: function shown() {
|
||
var element = this.element,
|
||
options = this.options,
|
||
viewer = this.viewer;
|
||
this.fulled = true;
|
||
this.isShown = true;
|
||
this.render();
|
||
this.bind();
|
||
this.showing = false;
|
||
if (options.focus) {
|
||
viewer.focus();
|
||
this.enforceFocus();
|
||
}
|
||
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,
|
||
viewer = this.viewer;
|
||
if (options.fucus) {
|
||
this.clearEnforceFocus();
|
||
}
|
||
this.fulled = false;
|
||
this.viewed = false;
|
||
this.isShown = false;
|
||
this.close();
|
||
this.unbind();
|
||
addClass(viewer, CLASS_HIDE);
|
||
viewer.removeAttribute('role');
|
||
viewer.removeAttribute('aria-labelledby');
|
||
viewer.removeAttribute('aria-modal');
|
||
viewer.setAttribute('aria-hidden', true);
|
||
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, null, {
|
||
cancelable: false
|
||
});
|
||
}
|
||
},
|
||
requestFullscreen: function requestFullscreen(options) {
|
||
var document = this.element.ownerDocument;
|
||
if (this.fulled && !(document.fullscreenElement || document.webkitFullscreenElement || document.mozFullScreenElement || document.msFullscreenElement)) {
|
||
var documentElement = document.documentElement;
|
||
|
||
// Element.requestFullscreen()
|
||
if (documentElement.requestFullscreen) {
|
||
// Avoid TypeError when convert `options` to dictionary
|
||
if (isPlainObject(options)) {
|
||
documentElement.requestFullscreen(options);
|
||
} else {
|
||
documentElement.requestFullscreen();
|
||
}
|
||
} else if (documentElement.webkitRequestFullscreen) {
|
||
documentElement.webkitRequestFullscreen(Element.ALLOW_KEYBOARD_INPUT);
|
||
} else if (documentElement.mozRequestFullScreen) {
|
||
documentElement.mozRequestFullScreen();
|
||
} else if (documentElement.msRequestFullscreen) {
|
||
documentElement.msRequestFullscreen();
|
||
}
|
||
}
|
||
},
|
||
exitFullscreen: function exitFullscreen() {
|
||
var document = this.element.ownerDocument;
|
||
if (this.fulled && (document.fullscreenElement || document.webkitFullscreenElement || document.mozFullScreenElement || document.msFullscreenElement)) {
|
||
// Document.exitFullscreen()
|
||
if (document.exitFullscreen) {
|
||
document.exitFullscreen();
|
||
} else if (document.webkitExitFullscreen) {
|
||
document.webkitExitFullscreen();
|
||
} else if (document.mozCancelFullScreen) {
|
||
document.mozCancelFullScreen();
|
||
} else if (document.msExitFullscreen) {
|
||
document.msExitFullscreen();
|
||
}
|
||
}
|
||
},
|
||
change: function change(event) {
|
||
var options = this.options,
|
||
pointers = this.pointers;
|
||
var pointer = pointers[Object.keys(pointers)[0]];
|
||
|
||
// In the case of the `pointers` object is empty (#421)
|
||
if (!pointer) {
|
||
return;
|
||
}
|
||
var offsetX = pointer.endX - pointer.startX;
|
||
var offsetY = pointer.endY - pointer.startY;
|
||
switch (this.action) {
|
||
// Move the current image
|
||
case ACTION_MOVE:
|
||
if (offsetX !== 0 || offsetY !== 0) {
|
||
this.pointerMoved = true;
|
||
this.move(offsetX, offsetY, event);
|
||
}
|
||
break;
|
||
|
||
// Zoom the current image
|
||
case ACTION_ZOOM:
|
||
this.zoom(getMaxZoomRatio(pointers), false, null, event);
|
||
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;
|
||
}
|
||
}
|
||
|
||
// 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.x >= 0 && imageData.y >= 0 && imageData.width <= viewerData.width && imageData.height <= viewerData.height;
|
||
}
|
||
};
|
||
|
||
var AnotherViewer = WINDOW.Viewer;
|
||
var getUniqueID = function (id) {
|
||
return function () {
|
||
id += 1;
|
||
return id;
|
||
};
|
||
}(-1);
|
||
var Viewer = /*#__PURE__*/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.imageClicked = false;
|
||
this.imageData = {};
|
||
this.index = this.options.initialViewIndex;
|
||
this.isImg = false;
|
||
this.isShown = false;
|
||
this.length = 0;
|
||
this.moving = false;
|
||
this.played = false;
|
||
this.playing = false;
|
||
this.pointers = {};
|
||
this.ready = false;
|
||
this.rotating = false;
|
||
this.scaling = false;
|
||
this.showing = false;
|
||
this.timeout = false;
|
||
this.tooltipping = false;
|
||
this.viewed = false;
|
||
this.viewing = false;
|
||
this.wheeling = false;
|
||
this.zooming = false;
|
||
this.pointerMoved = false;
|
||
this.id = getUniqueID();
|
||
this.init();
|
||
}
|
||
_createClass(Viewer, [{
|
||
key: "init",
|
||
value: function init() {
|
||
var _this = this;
|
||
var element = this.element,
|
||
options = this.options;
|
||
if (element[NAMESPACE]) {
|
||
return;
|
||
}
|
||
element[NAMESPACE] = this;
|
||
|
||
// The `focus` option requires the `keyboard` option set to `true`.
|
||
if (options.focus && !options.keyboard) {
|
||
options.focus = false;
|
||
}
|
||
var isImg = element.localName === '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 if (_this.getImageURL(image)) {
|
||
images.push(image);
|
||
}
|
||
});
|
||
this.isImg = isImg;
|
||
this.length = images.length;
|
||
this.images = images;
|
||
this.initBody();
|
||
|
||
// 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;
|
||
_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);
|
||
removeListener(image, EVENT_ERROR, progress);
|
||
}
|
||
});
|
||
}
|
||
};
|
||
forEach(images, function (image) {
|
||
if (image.complete) {
|
||
progress();
|
||
} else {
|
||
var onLoad;
|
||
var onError;
|
||
addListener(image, EVENT_LOAD, onLoad = function onLoad() {
|
||
removeListener(image, EVENT_ERROR, onError);
|
||
progress();
|
||
}, {
|
||
once: true
|
||
});
|
||
addListener(image, EVENT_ERROR, onError = function onError() {
|
||
removeListener(image, EVENT_LOAD, onLoad);
|
||
progress();
|
||
}, {
|
||
once: true
|
||
});
|
||
}
|
||
});
|
||
} else {
|
||
addListener(element, EVENT_CLICK, this.onStart = function (_ref) {
|
||
var target = _ref.target;
|
||
if (target.localName === 'img' && (!isFunction(options.filter) || options.filter.call(_this, target))) {
|
||
_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(".".concat(NAMESPACE, "-container"));
|
||
var title = viewer.querySelector(".".concat(NAMESPACE, "-title"));
|
||
var toolbar = viewer.querySelector(".".concat(NAMESPACE, "-toolbar"));
|
||
var navbar = viewer.querySelector(".".concat(NAMESPACE, "-navbar"));
|
||
var button = viewer.querySelector(".".concat(NAMESPACE, "-button"));
|
||
var canvas = viewer.querySelector(".".concat(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(".".concat(NAMESPACE, "-footer"));
|
||
this.tooltipBox = viewer.querySelector(".".concat(NAMESPACE, "-tooltip"));
|
||
this.player = viewer.querySelector(".".concat(NAMESPACE, "-player"));
|
||
this.list = viewer.querySelector(".".concat(NAMESPACE, "-list"));
|
||
viewer.id = "".concat(NAMESPACE).concat(this.id);
|
||
title.id = "".concat(NAMESPACE, "Title").concat(this.id);
|
||
addClass(title, !options.title ? CLASS_HIDE : getResponsiveClass(Array.isArray(options.title) ? options.title[0] : options.title));
|
||
addClass(navbar, !options.navbar ? CLASS_HIDE : getResponsiveClass(options.navbar));
|
||
toggleClass(button, CLASS_HIDE, !options.button);
|
||
if (options.keyboard) {
|
||
button.setAttribute('tabindex', 0);
|
||
}
|
||
if (options.backdrop) {
|
||
addClass(viewer, "".concat(NAMESPACE, "-backdrop"));
|
||
if (!options.inline && options.backdrop !== 'static') {
|
||
setData(canvas, DATA_ACTION, 'hide');
|
||
}
|
||
}
|
||
if (isString(options.className) && options.className) {
|
||
// In case there are multiple class names
|
||
options.className.split(REGEXP_SPACES).forEach(function (className) {
|
||
addClass(viewer, className);
|
||
});
|
||
}
|
||
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');
|
||
if (options.keyboard) {
|
||
item.setAttribute('tabindex', 0);
|
||
}
|
||
item.setAttribute('role', 'button');
|
||
addClass(item, "".concat(NAMESPACE, "-").concat(name));
|
||
if (!isFunction(click)) {
|
||
setData(item, DATA_ACTION, name);
|
||
}
|
||
if (isNumber(show)) {
|
||
addClass(item, getResponsiveClass(show));
|
||
}
|
||
if (['small', 'large'].indexOf(size) !== -1) {
|
||
addClass(item, "".concat(NAMESPACE, "-").concat(size));
|
||
} else if (name === 'play') {
|
||
addClass(item, "".concat(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(this.index);
|
||
}
|
||
}
|
||
|
||
/**
|
||
* 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;
|
||
|
||
}));
|