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/*!
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* Viewer v0.6.0
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* https://github.com/fengyuanchen/viewer
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*
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* Copyright (c) 2014-2017 Fengyuan Chen
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* Released under the MIT license
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*
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* Date: 2017-10-07T09:53:36.889Z
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*/
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(function (global, factory) {
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typeof exports === 'object' && typeof module !== 'undefined' ? factory(require('jquery')) :
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typeof define === 'function' && define.amd ? define(['jquery'], factory) :
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(factory(global.jQuery));
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}(this, (function ($) { 'use strict';
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$ = $ && $.hasOwnProperty('default') ? $['default'] : $;
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var DEFAULTS = {
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// Enable inline mode
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inline: false,
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// Show the button on the top-right of the viewer
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button: true,
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// Show the navbar
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navbar: true,
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// Show the title
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title: true,
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// Show the toolbar
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toolbar: true,
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// Show the tooltip with image ratio (percentage) when zoom in or zoom out
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tooltip: true,
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// Enable to move the image
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movable: true,
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// Enable to zoom the image
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zoomable: true,
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// Enable to rotate the image
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rotatable: true,
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// Enable to scale the image
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scalable: true,
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// Enable CSS3 Transition for some special elements
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transition: true,
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// Enable to request fullscreen when play
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fullscreen: true,
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// Enable keyboard support
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keyboard: true,
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// Define interval of each image when playing
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interval: 5000,
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// Min width of the viewer in inline mode
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minWidth: 200,
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// Min height of the viewer in inline mode
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minHeight: 100,
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// Define the ratio when zoom the image by wheeling mouse
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zoomRatio: 0.1,
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// Define the min ratio of the image when zoom out
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minZoomRatio: 0.01,
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// Define the max ratio of the image when zoom in
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maxZoomRatio: 100,
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// Define the CSS `z-index` value of viewer in modal mode.
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zIndex: 2015,
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// Define the CSS `z-index` value of viewer in inline mode.
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zIndexInline: 0,
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// Define where to get the original image URL for viewing
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// Type: String (an image attribute) or Function (should return an image URL)
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url: 'src',
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// Event shortcuts
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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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};
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var TEMPLATE = '<div class="viewer-container">' + '<div class="viewer-canvas"></div>' + '<div class="viewer-footer">' + '<div class="viewer-title"></div>' + '<ul class="viewer-toolbar">' + '<li role="button" class="viewer-zoom-in" data-action="zoom-in"></li>' + '<li role="button" class="viewer-zoom-out" data-action="zoom-out"></li>' + '<li role="button" class="viewer-one-to-one" data-action="one-to-one"></li>' + '<li role="button" class="viewer-reset" data-action="reset"></li>' + '<li role="button" class="viewer-prev" data-action="prev"></li>' + '<li role="button" class="viewer-play" data-action="play"></li>' + '<li role="button" class="viewer-next" data-action="next"></li>' + '<li role="button" class="viewer-rotate-left" data-action="rotate-left"></li>' + '<li role="button" class="viewer-rotate-right" data-action="rotate-right"></li>' + '<li role="button" class="viewer-flip-horizontal" data-action="flip-horizontal"></li>' + '<li role="button" class="viewer-flip-vertical" data-action="flip-vertical"></li>' + '</ul>' + '<div class="viewer-navbar">' + '<ul class="viewer-list"></ul>' + '</div>' + '</div>' + '<div class="viewer-tooltip"></div>' + '<div role="button" class="viewer-button" data-action="mix"></div>' + '<div class="viewer-player"></div>' + '</div>';
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var _window = window;
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var PointerEvent = _window.PointerEvent;
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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 = NAMESPACE + '-active';
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var CLASS_CLOSE = NAMESPACE + '-close';
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var CLASS_FADE = NAMESPACE + '-fade';
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var CLASS_FIXED = NAMESPACE + '-fixed';
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var CLASS_FULLSCREEN = NAMESPACE + '-fullscreen';
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var CLASS_FULLSCREEN_EXIT = NAMESPACE + '-fullscreen-exit';
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var CLASS_HIDE = NAMESPACE + '-hide';
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var CLASS_HIDE_MD_DOWN = NAMESPACE + '-hide-md-down';
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var CLASS_HIDE_SM_DOWN = NAMESPACE + '-hide-sm-down';
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var CLASS_HIDE_XS_DOWN = NAMESPACE + '-hide-xs-down';
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var CLASS_IN = NAMESPACE + '-in';
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var CLASS_INVISIBLE = NAMESPACE + '-invisible';
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var CLASS_MOVE = NAMESPACE + '-move';
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var CLASS_OPEN = NAMESPACE + '-open';
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var CLASS_SHOW = NAMESPACE + '-show';
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var CLASS_TRANSITION = NAMESPACE + '-transition';
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// 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_CLICK = 'click';
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var EVENT_DRAG_START = 'dragstart';
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var EVENT_KEY_DOWN = 'keydown';
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var EVENT_LOAD = 'load';
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var EVENT_POINTER_DOWN = PointerEvent ? 'pointerdown' : 'touchstart mousedown';
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var EVENT_POINTER_MOVE = PointerEvent ? 'pointermove' : 'mousemove touchmove';
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var EVENT_POINTER_UP = PointerEvent ? 'pointerup pointercancel' : 'touchend touchcancel mouseup';
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var EVENT_RESIZE = 'resize';
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var EVENT_TRANSITIONEND = 'transitionend';
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var EVENT_WHEEL = 'wheel mousewheel DOMMouseScroll';
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/**
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* Check if the given value is a string.
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* @param {*} value - The value to check.
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* @returns {boolean} Returns `true` if the given value is a string, else `false`.
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*/
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function isString(value) {
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return typeof value === 'string';
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}
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/**
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* Check if the given value is not a number.
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*/
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var isNaN = Number.isNaN || window.isNaN;
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/**
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* Check if the given value is a number.
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* @param {*} value - The value to check.
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* @returns {boolean} Returns `true` if the given value is a number, else `false`.
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*/
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function isNumber(value) {
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return typeof value === 'number' && !isNaN(value);
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}
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/**
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* Check if the given value is undefined.
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* @param {*} value - The value to check.
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* @returns {boolean} Returns `true` if the given value is undefined, else `false`.
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*/
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function isUndefined(value) {
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return typeof value === 'undefined';
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}
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/**
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* Takes a function and returns a new one that will always have a particular context.
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* Custom proxy to avoid jQuery's guid.
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* @param {Function} fn - The target function.
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* @param {Object} context - The new context for the function.
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* @returns {boolean} The new function.
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*/
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function proxy(fn, context) {
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for (var _len = arguments.length, args = Array(_len > 2 ? _len - 2 : 0), _key = 2; _key < _len; _key++) {
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args[_key - 2] = arguments[_key];
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}
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return function () {
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for (var _len2 = arguments.length, args2 = Array(_len2), _key2 = 0; _key2 < _len2; _key2++) {
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args2[_key2] = arguments[_key2];
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}
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return fn.apply(context, args.concat(args2));
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};
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}
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/**
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* Get the own enumerable properties of a given object.
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* @param {Object} obj - The target object.
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* @returns {Array} All the own enumerable properties of the given object.
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*/
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var objectKeys = Object.keys || function objectKeys(obj) {
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var keys = [];
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$.each(obj, function (key) {
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keys.push(key);
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});
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return keys;
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};
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/**
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* Get transform values from an object.
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* @param {Object} obj - The target object.
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* @returns {string} A string contains transform values.
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*/
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function getTransformValues(_ref) {
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var rotate = _ref.rotate,
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scaleX = _ref.scaleX,
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scaleY = _ref.scaleY;
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var values = [];
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if (isNumber(rotate) && rotate !== 0) {
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values.push('rotate(' + rotate + 'deg)');
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}
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if (isNumber(scaleX) && scaleX !== 1) {
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values.push('scaleX(' + scaleX + ')');
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}
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if (isNumber(scaleY) && scaleY !== 1) {
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values.push('scaleY(' + scaleY + ')');
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}
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return values.length > 0 ? values.join(' ') : 'none';
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}
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/**
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* Get an image name from an image url.
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* @param {string} url - The target url.
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* @example
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* // picture.jpg
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* getImageNameFromURL('http://domain.com/path/to/picture.jpg?size=1280×960')
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* @returns {string} A string contains the image name.
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*/
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function getImageNameFromURL(url) {
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return isString(url) ? url.replace(/^.*\//, '').replace(/[?&#].*$/, '') : '';
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}
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/**
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* Get an image's natural sizes.
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* @param {string} image - The target image.
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* @param {Function} callback - The callback function.
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*/
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function getImageNaturalSizes(image, callback) {
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// Modern browsers and IE9+
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if (image.naturalWidth) {
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callback(image.naturalWidth, image.naturalHeight);
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return;
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}
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// IE8 (Don't use `new Image()` here)
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var newImage = document.createElement('img');
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newImage.onload = function () {
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callback(newImage.width, newImage.height);
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};
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newImage.src = image.src;
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}
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/**
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* Get the related class name of a responsive type number.
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* @param {string} type - The responsive type.
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* @returns {string} The related class name.
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*/
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function getResponsiveClass(type) {
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switch (type) {
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case 2:
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return CLASS_HIDE_XS_DOWN;
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case 3:
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return CLASS_HIDE_SM_DOWN;
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case 4:
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return CLASS_HIDE_MD_DOWN;
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default:
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return '';
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}
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}
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/**
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* Get the max ratio of a group of pointers.
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* @param {string} pointers - The target pointers.
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* @returns {number} The result ratio.
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*/
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function getMaxZoomRatio(pointers) {
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var pointers2 = $.extend({}, pointers);
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var ratios = [];
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$.each(pointers, function (pointerId, pointer) {
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delete pointers2[pointerId];
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$.each(pointers2, function (pointerId2, pointer2) {
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var x1 = Math.abs(pointer.startX - pointer2.startX);
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var y1 = Math.abs(pointer.startY - pointer2.startY);
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var x2 = Math.abs(pointer.endX - pointer2.endX);
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var y2 = Math.abs(pointer.endY - pointer2.endY);
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var z1 = Math.sqrt(x1 * x1 + y1 * y1);
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var z2 = Math.sqrt(x2 * x2 + y2 * y2);
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var ratio = (z2 - z1) / z1;
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ratios.push(ratio);
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});
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});
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ratios.sort(function (a, b) {
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return Math.abs(a) < Math.abs(b);
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});
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return ratios[0];
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}
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/**
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* Get a pointer from an event object.
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* @param {Object} event - The target event object.
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* @param {boolean} endOnly - Indicates if only returns the end point coordinate or not.
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* @returns {Object} The result pointer contains start and/or end point coordinates.
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*/
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function getPointer(_ref2, endOnly) {
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var pageX = _ref2.pageX,
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pageY = _ref2.pageY;
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var end = {
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endX: pageX,
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endY: pageY
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};
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if (endOnly) {
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return end;
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}
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return $.extend({
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startX: pageX,
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startY: pageY
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}, end);
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}
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/**
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* Get the center point coordinate of a group of pointers.
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* @param {Object} pointers - The target pointers.
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* @returns {Object} The center point coordinate.
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*/
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function getPointersCenter(pointers) {
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var pageX = 0;
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var pageY = 0;
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var count = 0;
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$.each(pointers, function (pointerId, _ref3) {
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var startX = _ref3.startX,
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startY = _ref3.startY;
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pageX += startX;
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pageY += startY;
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count += 1;
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});
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pageX /= count;
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pageY /= count;
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return {
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pageX: pageX,
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pageY: pageY
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};
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}
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var render = {
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render: function render() {
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this.initContainer();
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this.initViewer();
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this.initList();
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this.renderViewer();
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},
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initContainer: function initContainer() {
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var $window = $(window);
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this.container = {
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width: $window.innerWidth(),
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height: $window.innerHeight()
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};
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},
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initViewer: function initViewer() {
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var options = this.options,
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$parent = this.$parent;
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var viewer = void 0;
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if (options.inline) {
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viewer = {
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width: Math.max($parent.width(), options.minWidth),
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height: Math.max($parent.height(), options.minHeight)
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};
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this.parent = viewer;
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}
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if (this.fulled || !viewer) {
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viewer = this.container;
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}
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this.viewer = $.extend({}, viewer);
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},
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renderViewer: function renderViewer() {
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if (this.options.inline && !this.fulled) {
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this.$viewer.css(this.viewer);
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}
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},
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initList: function initList() {
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var $element = this.$element,
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options = this.options,
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$list = this.$list;
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var list = [];
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this.$images.each(function (i, image) {
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var alt = image.alt || getImageNameFromURL(image);
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var src = image.src;
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var url = options.url;
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if (!src) {
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return;
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}
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if (isString(url)) {
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url = image.getAttribute(url);
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} else if ($.isFunction(url)) {
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url = url.call(image, image);
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}
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list.push('<li>' + '<img' + (' src="' + src + '"') + ' data-action="view"' + (' data-index="' + i + '"') + (' data-original-url="' + (url || src) + '"') + (' alt="' + alt + '"') + '>' + '</li>');
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});
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|
|
$list.html(list.join('')).find('img').one(EVENT_LOAD, {
|
|
|
filled: true
|
|
|
}, $.proxy(this.loadImage, this));
|
|
|
|
|
|
this.$items = $list.children();
|
|
|
|
|
|
if (options.transition) {
|
|
|
$element.one(EVENT_VIEWED, function () {
|
|
|
$list.addClass(CLASS_TRANSITION);
|
|
|
});
|
|
|
}
|
|
|
},
|
|
|
renderList: function renderList(index) {
|
|
|
var i = index || this.index;
|
|
|
var width = this.$items.eq(i).width();
|
|
|
|
|
|
// 1 pixel of `margin-left` width
|
|
|
var outerWidth = width + 1;
|
|
|
|
|
|
// Place the active item in the center of the screen
|
|
|
this.$list.css({
|
|
|
width: outerWidth * this.length,
|
|
|
marginLeft: (this.viewer.width - width) / 2 - outerWidth * i
|
|
|
});
|
|
|
},
|
|
|
resetList: function resetList() {
|
|
|
this.$list.empty().removeClass(CLASS_TRANSITION).css('margin-left', 0);
|
|
|
},
|
|
|
initImage: function initImage(callback) {
|
|
|
var _this = this;
|
|
|
|
|
|
var options = this.options,
|
|
|
$image = this.$image,
|
|
|
viewer = this.viewer;
|
|
|
|
|
|
var footerHeight = this.$footer.height();
|
|
|
var viewerWidth = viewer.width;
|
|
|
var viewerHeight = Math.max(viewer.height - footerHeight, footerHeight);
|
|
|
var oldImage = this.image || {};
|
|
|
|
|
|
getImageNaturalSizes($image[0], function (naturalWidth, naturalHeight) {
|
|
|
var aspectRatio = naturalWidth / naturalHeight;
|
|
|
var width = viewerWidth;
|
|
|
var height = viewerHeight;
|
|
|
|
|
|
if (viewerHeight * aspectRatio > viewerWidth) {
|
|
|
height = viewerWidth / aspectRatio;
|
|
|
} else {
|
|
|
width = viewerHeight * aspectRatio;
|
|
|
}
|
|
|
|
|
|
width = Math.min(width * 0.9, naturalWidth);
|
|
|
height = Math.min(height * 0.9, naturalHeight);
|
|
|
|
|
|
var image = {
|
|
|
naturalWidth: naturalWidth,
|
|
|
naturalHeight: naturalHeight,
|
|
|
aspectRatio: aspectRatio,
|
|
|
ratio: width / naturalWidth,
|
|
|
width: width,
|
|
|
height: height,
|
|
|
left: (viewerWidth - width) / 2,
|
|
|
top: (viewerHeight - height) / 2
|
|
|
};
|
|
|
var initialImage = $.extend({}, image);
|
|
|
|
|
|
if (options.rotatable) {
|
|
|
image.rotate = oldImage.rotate || 0;
|
|
|
initialImage.rotate = 0;
|
|
|
}
|
|
|
|
|
|
if (options.scalable) {
|
|
|
image.scaleX = oldImage.scaleX || 1;
|
|
|
image.scaleY = oldImage.scaleY || 1;
|
|
|
initialImage.scaleX = 1;
|
|
|
initialImage.scaleY = 1;
|
|
|
}
|
|
|
|
|
|
_this.image = image;
|
|
|
_this.initialImage = initialImage;
|
|
|
|
|
|
if ($.isFunction(callback)) {
|
|
|
callback();
|
|
|
}
|
|
|
});
|
|
|
},
|
|
|
renderImage: function renderImage(callback) {
|
|
|
var image = this.image,
|
|
|
$image = this.$image;
|
|
|
|
|
|
|
|
|
$image.css({
|
|
|
width: image.width,
|
|
|
height: image.height,
|
|
|
marginLeft: image.left,
|
|
|
marginTop: image.top,
|
|
|
transform: getTransformValues(image)
|
|
|
});
|
|
|
|
|
|
if ($.isFunction(callback)) {
|
|
|
if (this.transitioning) {
|
|
|
$image.one(EVENT_TRANSITIONEND, callback);
|
|
|
} else {
|
|
|
callback();
|
|
|
}
|
|
|
}
|
|
|
},
|
|
|
resetImage: function resetImage() {
|
|
|
if (this.$image) {
|
|
|
this.$image.remove();
|
|
|
this.$image = null;
|
|
|
}
|
|
|
}
|
|
|
};
|
|
|
|
|
|
var events = {
|
|
|
bind: function bind() {
|
|
|
var $element = this.$element,
|
|
|
options = this.options;
|
|
|
|
|
|
|
|
|
if ($.isFunction(options.view)) {
|
|
|
$element.on(EVENT_VIEW, options.view);
|
|
|
}
|
|
|
|
|
|
if ($.isFunction(options.viewed)) {
|
|
|
$element.on(EVENT_VIEWED, options.viewed);
|
|
|
}
|
|
|
|
|
|
this.$viewer.on(EVENT_CLICK, $.proxy(this.click, this)).on(EVENT_WHEEL, $.proxy(this.wheel, this)).on(EVENT_DRAG_START, $.proxy(this.dragstart, this));
|
|
|
|
|
|
this.$canvas.on(EVENT_POINTER_DOWN, $.proxy(this.pointerdown, this));
|
|
|
|
|
|
$(document).on(EVENT_POINTER_MOVE, this.onPointerMove = proxy(this.pointermove, this)).on(EVENT_POINTER_UP, this.onPointerUp = proxy(this.pointerup, this)).on(EVENT_KEY_DOWN, this.onKeyDown = proxy(this.keydown, this));
|
|
|
|
|
|
$(window).on(EVENT_RESIZE, this.onResize = proxy(this.resize, this));
|
|
|
},
|
|
|
unbind: function unbind() {
|
|
|
var $element = this.$element,
|
|
|
options = this.options;
|
|
|
|
|
|
|
|
|
if ($.isFunction(options.view)) {
|
|
|
$element.off(EVENT_VIEW, options.view);
|
|
|
}
|
|
|
|
|
|
if ($.isFunction(options.viewed)) {
|
|
|
$element.off(EVENT_VIEWED, options.viewed);
|
|
|
}
|
|
|
|
|
|
this.$viewer.off(EVENT_CLICK, this.click).off(EVENT_WHEEL, this.wheel).off(EVENT_DRAG_START, this.dragstart);
|
|
|
|
|
|
this.$canvas.off(EVENT_POINTER_DOWN, this.pointerdown);
|
|
|
|
|
|
$(document).off(EVENT_POINTER_MOVE, this.onPointerMove).off(EVENT_POINTER_UP, this.onPointerUp).off(EVENT_KEY_DOWN, this.onKeyDown);
|
|
|
|
|
|
$(window).off(EVENT_RESIZE, this.onResize);
|
|
|
}
|
|
|
};
|
|
|
|
|
|
var handlers = {
|
|
|
click: function click(e) {
|
|
|
var $target = $(e.target);
|
|
|
var action = $target.data('action');
|
|
|
var image = this.image;
|
|
|
|
|
|
|
|
|
switch (action) {
|
|
|
case 'mix':
|
|
|
if (this.played) {
|
|
|
this.stop();
|
|
|
} else if (this.options.inline) {
|
|
|
if (this.fulled) {
|
|
|
this.exit();
|
|
|
} else {
|
|
|
this.full();
|
|
|
}
|
|
|
} else {
|
|
|
this.hide();
|
|
|
}
|
|
|
|
|
|
break;
|
|
|
|
|
|
case 'view':
|
|
|
this.view($target.data('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();
|
|
|
break;
|
|
|
|
|
|
case 'play':
|
|
|
this.play();
|
|
|
break;
|
|
|
|
|
|
case 'next':
|
|
|
this.next();
|
|
|
break;
|
|
|
|
|
|
case 'rotate-left':
|
|
|
this.rotate(-90);
|
|
|
break;
|
|
|
|
|
|
case 'rotate-right':
|
|
|
this.rotate(90);
|
|
|
break;
|
|
|
|
|
|
case 'flip-horizontal':
|
|
|
this.scaleX(-image.scaleX || -1);
|
|
|
break;
|
|
|
|
|
|
case 'flip-vertical':
|
|
|
this.scaleY(-image.scaleY || -1);
|
|
|
break;
|
|
|
|
|
|
default:
|
|
|
if (this.played) {
|
|
|
this.stop();
|
|
|
}
|
|
|
}
|
|
|
},
|
|
|
dragstart: function dragstart(e) {
|
|
|
if ($(e.target).is('img')) {
|
|
|
e.preventDefault();
|
|
|
}
|
|
|
},
|
|
|
keydown: function keydown(e) {
|
|
|
var options = this.options;
|
|
|
|
|
|
|
|
|
if (!this.fulled || !options.keyboard) {
|
|
|
return;
|
|
|
}
|
|
|
|
|
|
switch (e.which) {
|
|
|
// (Key: Esc)
|
|
|
case 27:
|
|
|
if (this.played) {
|
|
|
this.stop();
|
|
|
} else if (options.inline) {
|
|
|
if (this.fulled) {
|
|
|
this.exit();
|
|
|
}
|
|
|
} else {
|
|
|
this.hide();
|
|
|
}
|
|
|
|
|
|
break;
|
|
|
|
|
|
// (Key: Space)
|
|
|
case 32:
|
|
|
if (this.played) {
|
|
|
this.stop();
|
|
|
}
|
|
|
|
|
|
break;
|
|
|
|
|
|
// View previous (Key: ←)
|
|
|
case 37:
|
|
|
this.prev();
|
|
|
break;
|
|
|
|
|
|
// Zoom in (Key: ↑)
|
|
|
case 38:
|
|
|
// Prevent scroll on Firefox
|
|
|
e.preventDefault();
|
|
|
|
|
|
this.zoom(options.zoomRatio, true);
|
|
|
break;
|
|
|
|
|
|
// View next (Key: →)
|
|
|
case 39:
|
|
|
this.next();
|
|
|
break;
|
|
|
|
|
|
// Zoom out (Key: ↓)
|
|
|
case 40:
|
|
|
// Prevent scroll on Firefox
|
|
|
e.preventDefault();
|
|
|
|
|
|
this.zoom(-options.zoomRatio, true);
|
|
|
break;
|
|
|
|
|
|
// 48: Zoom out to initial size (Key: Ctrl + 0)
|
|
|
// 49: Zoom in to natural size (Key: Ctrl + 1)
|
|
|
case 48:
|
|
|
case 49:
|
|
|
if (e.ctrlKey || e.shiftKey) {
|
|
|
e.preventDefault();
|
|
|
this.toggle();
|
|
|
}
|
|
|
|
|
|
break;
|
|
|
|
|
|
default:
|
|
|
}
|
|
|
},
|
|
|
load: function load() {
|
|
|
var _this = this;
|
|
|
|
|
|
var options = this.options,
|
|
|
viewer = this.viewer,
|
|
|
$image = this.$image;
|
|
|
|
|
|
|
|
|
if (this.timeout) {
|
|
|
clearTimeout(this.timeout);
|
|
|
this.timeout = false;
|
|
|
}
|
|
|
|
|
|
if (!$image) {
|
|
|
return;
|
|
|
}
|
|
|
|
|
|
$image.removeClass(CLASS_INVISIBLE).css('cssText', '' + ('width:0;' + 'height:0;' + 'margin-left:') + viewer.width / 2 + 'px;' + ('margin-top:' + viewer.height / 2 + 'px;') + 'max-width:none!important;' + 'visibility:visible;');
|
|
|
|
|
|
this.initImage(function () {
|
|
|
$image.toggleClass(CLASS_TRANSITION, options.transition).toggleClass(CLASS_MOVE, options.movable);
|
|
|
|
|
|
_this.renderImage(function () {
|
|
|
_this.viewed = true;
|
|
|
_this.trigger(EVENT_VIEWED);
|
|
|
});
|
|
|
});
|
|
|
},
|
|
|
loadImage: function loadImage(e) {
|
|
|
var image = e.target;
|
|
|
var $image = $(image);
|
|
|
var $parent = $image.parent();
|
|
|
var parentWidth = $parent.width();
|
|
|
var parentHeight = $parent.height();
|
|
|
var filled = e.data && e.data.filled;
|
|
|
|
|
|
getImageNaturalSizes(image, function (naturalWidth, naturalHeight) {
|
|
|
var aspectRatio = naturalWidth / naturalHeight;
|
|
|
var width = parentWidth;
|
|
|
var height = parentHeight;
|
|
|
|
|
|
if (parentHeight * aspectRatio > parentWidth) {
|
|
|
if (filled) {
|
|
|
width = parentHeight * aspectRatio;
|
|
|
} else {
|
|
|
height = parentWidth / aspectRatio;
|
|
|
}
|
|
|
} else if (filled) {
|
|
|
height = parentWidth / aspectRatio;
|
|
|
} else {
|
|
|
width = parentHeight * aspectRatio;
|
|
|
}
|
|
|
|
|
|
$image.css({
|
|
|
width: width,
|
|
|
height: height,
|
|
|
marginLeft: (parentWidth - width) / 2,
|
|
|
marginTop: (parentHeight - height) / 2
|
|
|
});
|
|
|
});
|
|
|
},
|
|
|
pointerdown: function pointerdown(e) {
|
|
|
if (!this.viewed || this.transitioning) {
|
|
|
return;
|
|
|
}
|
|
|
|
|
|
var options = this.options,
|
|
|
pointers = this.pointers;
|
|
|
var originalEvent = e.originalEvent;
|
|
|
|
|
|
|
|
|
if (originalEvent && originalEvent.changedTouches) {
|
|
|
$.each(originalEvent.changedTouches, function (i, touch) {
|
|
|
pointers[touch.identifier] = getPointer(touch);
|
|
|
});
|
|
|
} else {
|
|
|
pointers[originalEvent && originalEvent.pointerId || 0] = getPointer(originalEvent || e);
|
|
|
}
|
|
|
|
|
|
var action = options.movable ? ACTION_MOVE : false;
|
|
|
|
|
|
if (objectKeys(pointers).length > 1) {
|
|
|
action = ACTION_ZOOM;
|
|
|
} else if ((e.pointerType === 'touch' || e.type === 'touchmove') && this.isSwitchable()) {
|
|
|
action = ACTION_SWITCH;
|
|
|
}
|
|
|
|
|
|
this.action = action;
|
|
|
},
|
|
|
pointermove: function pointermove(e) {
|
|
|
var $image = this.$image,
|
|
|
action = this.action,
|
|
|
pointers = this.pointers;
|
|
|
|
|
|
|
|
|
if (!this.viewed || !action) {
|
|
|
return;
|
|
|
}
|
|
|
|
|
|
e.preventDefault();
|
|
|
|
|
|
var originalEvent = e.originalEvent;
|
|
|
|
|
|
|
|
|
if (originalEvent && originalEvent.changedTouches) {
|
|
|
$.each(originalEvent.changedTouches, function (i, touch) {
|
|
|
$.extend(pointers[touch.identifier], getPointer(touch, true));
|
|
|
});
|
|
|
} else {
|
|
|
$.extend(pointers[originalEvent && originalEvent.pointerId || 0], getPointer(e, true));
|
|
|
}
|
|
|
|
|
|
if (action === ACTION_MOVE && this.options.transition && $image.hasClass(CLASS_TRANSITION)) {
|
|
|
$image.removeClass(CLASS_TRANSITION);
|
|
|
}
|
|
|
|
|
|
this.change(e);
|
|
|
},
|
|
|
pointerup: function pointerup(e) {
|
|
|
if (!this.viewed) {
|
|
|
return;
|
|
|
}
|
|
|
|
|
|
var action = this.action,
|
|
|
pointers = this.pointers;
|
|
|
var originalEvent = e.originalEvent;
|
|
|
|
|
|
|
|
|
if (originalEvent && originalEvent.changedTouches) {
|
|
|
$.each(originalEvent.changedTouches, function (i, touch) {
|
|
|
delete pointers[touch.identifier];
|
|
|
});
|
|
|
} else {
|
|
|
delete pointers[originalEvent && originalEvent.pointerId || 0];
|
|
|
}
|
|
|
|
|
|
if (!action) {
|
|
|
return;
|
|
|
}
|
|
|
|
|
|
if (action === ACTION_MOVE && this.options.transition) {
|
|
|
this.$image.addClass(CLASS_TRANSITION);
|
|
|
}
|
|
|
|
|
|
this.action = false;
|
|
|
},
|
|
|
resize: function resize() {
|
|
|
var _this2 = this;
|
|
|
|
|
|
this.initContainer();
|
|
|
this.initViewer();
|
|
|
this.renderViewer();
|
|
|
this.renderList();
|
|
|
|
|
|
if (this.viewed) {
|
|
|
this.initImage(function () {
|
|
|
_this2.renderImage();
|
|
|
});
|
|
|
}
|
|
|
|
|
|
if (this.played) {
|
|
|
if (this.options.fullscreen && this.fulled && !document.fullscreenElement && !document.mozFullScreenElement && !document.webkitFullscreenElement && !document.msFullscreenElement) {
|
|
|
this.stop();
|
|
|
return;
|
|
|
}
|
|
|
|
|
|
this.$player.find('img').one(EVENT_LOAD, $.proxy(this.loadImage, this)).trigger(EVENT_LOAD);
|
|
|
}
|
|
|
},
|
|
|
start: function start(_ref) {
|
|
|
var target = _ref.target;
|
|
|
|
|
|
if ($(target).is('img')) {
|
|
|
this.target = target;
|
|
|
this.show();
|
|
|
}
|
|
|
},
|
|
|
wheel: function wheel(e) {
|
|
|
var _this3 = this;
|
|
|
|
|
|
if (!this.viewed) {
|
|
|
return;
|
|
|
}
|
|
|
|
|
|
e.preventDefault();
|
|
|
|
|
|
// Limit wheel speed to prevent zoom too fast
|
|
|
if (this.wheeling) {
|
|
|
return;
|
|
|
}
|
|
|
|
|
|
this.wheeling = true;
|
|
|
|
|
|
setTimeout(function () {
|
|
|
_this3.wheeling = false;
|
|
|
}, 50);
|
|
|
|
|
|
var originalEvent = e.originalEvent || e;
|
|
|
var delta = 1;
|
|
|
|
|
|
if (originalEvent.deltaY) {
|
|
|
delta = originalEvent.deltaY > 0 ? 1 : -1;
|
|
|
} else if (originalEvent.wheelDelta) {
|
|
|
delta = -originalEvent.wheelDelta / 120;
|
|
|
} else if (originalEvent.detail) {
|
|
|
delta = originalEvent.detail > 0 ? 1 : -1;
|
|
|
}
|
|
|
|
|
|
this.zoom(-delta * (Number(this.options.zoomRatio) || 0.1), true, e);
|
|
|
}
|
|
|
};
|
|
|
|
|
|
var methods = {
|
|
|
/**
|
|
|
* Show the viewer (only available in modal mode).
|
|
|
*/
|
|
|
show: function show() {
|
|
|
var _this = this;
|
|
|
|
|
|
var $element = this.$element,
|
|
|
options = this.options;
|
|
|
|
|
|
|
|
|
if (options.inline || this.transitioning) {
|
|
|
return;
|
|
|
}
|
|
|
|
|
|
if (!this.ready) {
|
|
|
this.build();
|
|
|
}
|
|
|
|
|
|
var $viewer = this.$viewer;
|
|
|
|
|
|
|
|
|
if ($.isFunction(options.show)) {
|
|
|
$element.one(EVENT_SHOW, options.show);
|
|
|
}
|
|
|
|
|
|
if (this.trigger(EVENT_SHOW).isDefaultPrevented()) {
|
|
|
return;
|
|
|
}
|
|
|
|
|
|
this.$body.addClass(CLASS_OPEN);
|
|
|
$viewer.removeClass(CLASS_HIDE);
|
|
|
$element.one(EVENT_SHOWN, function () {
|
|
|
_this.view(_this.target ? _this.$images.index(_this.target) : _this.index);
|
|
|
_this.target = false;
|
|
|
});
|
|
|
|
|
|
if (options.transition) {
|
|
|
this.transitioning = true;
|
|
|
$viewer.addClass(CLASS_TRANSITION);
|
|
|
|
|
|
// Force reflow to enable CSS3 transition
|
|
|
// eslint-disable-next-line
|
|
|
$viewer[0].offsetWidth;
|
|
|
$viewer.one(EVENT_TRANSITIONEND, $.proxy(this.shown, this)).addClass(CLASS_IN);
|
|
|
} else {
|
|
|
$viewer.addClass(CLASS_IN);
|
|
|
this.shown();
|
|
|
}
|
|
|
},
|
|
|
|
|
|
|
|
|
/**
|
|
|
* Hide the viewer (only available in modal mode).
|
|
|
*/
|
|
|
hide: function hide() {
|
|
|
var _this2 = this;
|
|
|
|
|
|
var options = this.options,
|
|
|
$viewer = this.$viewer;
|
|
|
|
|
|
|
|
|
if (options.inline || this.transitioning || !this.visible) {
|
|
|
return;
|
|
|
}
|
|
|
|
|
|
if ($.isFunction(options.hide)) {
|
|
|
this.$element.one(EVENT_HIDE, options.hide);
|
|
|
}
|
|
|
|
|
|
if (this.trigger(EVENT_HIDE).isDefaultPrevented()) {
|
|
|
return;
|
|
|
}
|
|
|
|
|
|
if (this.viewed && options.transition) {
|
|
|
this.transitioning = true;
|
|
|
this.$image.one(EVENT_TRANSITIONEND, function () {
|
|
|
$viewer.one(EVENT_TRANSITIONEND, $.proxy(_this2.hidden, _this2)).removeClass(CLASS_IN);
|
|
|
});
|
|
|
this.zoomTo(0, false, false, true);
|
|
|
} else {
|
|
|
$viewer.removeClass(CLASS_IN);
|
|
|
this.hidden();
|
|
|
}
|
|
|
},
|
|
|
|
|
|
|
|
|
/**
|
|
|
* View one of the images with image's index.
|
|
|
* @param {number} index - The image index.
|
|
|
*/
|
|
|
view: function view(index) {
|
|
|
var _this3 = this;
|
|
|
|
|
|
index = Number(index) || 0;
|
|
|
|
|
|
if (!this.visible || this.played || index < 0 || index >= this.length || this.viewed && index === this.index) {
|
|
|
return;
|
|
|
}
|
|
|
|
|
|
if (this.trigger(EVENT_VIEW).isDefaultPrevented()) {
|
|
|
return;
|
|
|
}
|
|
|
|
|
|
var $item = this.$items.eq(index);
|
|
|
var $img = $item.find('img');
|
|
|
var alt = $img.attr('alt');
|
|
|
var $image = $('<img src="' + $img.data('originalUrl') + '" alt="' + alt + '">');
|
|
|
|
|
|
this.$image = $image;
|
|
|
this.$items.eq(this.index).removeClass(CLASS_ACTIVE);
|
|
|
$item.addClass(CLASS_ACTIVE);
|
|
|
this.viewed = false;
|
|
|
this.index = index;
|
|
|
this.image = null;
|
|
|
this.$canvas.html($image.addClass(CLASS_INVISIBLE));
|
|
|
|
|
|
// Center current item
|
|
|
this.renderList();
|
|
|
|
|
|
var $title = this.$title;
|
|
|
|
|
|
// Clear title
|
|
|
|
|
|
$title.empty();
|
|
|
|
|
|
// Generate title after viewed
|
|
|
this.$element.one(EVENT_VIEWED, function () {
|
|
|
var _image = _this3.image,
|
|
|
naturalWidth = _image.naturalWidth,
|
|
|
naturalHeight = _image.naturalHeight;
|
|
|
|
|
|
|
|
|
$title.html(alt + ' (' + naturalWidth + ' × ' + naturalHeight + ')');
|
|
|
});
|
|
|
|
|
|
if ($image[0].complete) {
|
|
|
this.load();
|
|
|
} else {
|
|
|
$image.one(EVENT_LOAD, $.proxy(this.load, this));
|
|
|
|
|
|
if (this.timeout) {
|
|
|
clearTimeout(this.timeout);
|
|
|
}
|
|
|
|
|
|
// Make the image visible if it fails to load within 1s
|
|
|
this.timeout = setTimeout(function () {
|
|
|
$image.removeClass(CLASS_INVISIBLE);
|
|
|
_this3.timeout = false;
|
|
|
}, 1000);
|
|
|
}
|
|
|
},
|
|
|
|
|
|
|
|
|
/**
|
|
|
* View the previous image.
|
|
|
*/
|
|
|
prev: function prev() {
|
|
|
this.view(Math.max(this.index - 1, 0));
|
|
|
},
|
|
|
|
|
|
|
|
|
/**
|
|
|
* View the next image.
|
|
|
*/
|
|
|
next: function next() {
|
|
|
this.view(Math.min(this.index + 1, this.length - 1));
|
|
|
},
|
|
|
|
|
|
|
|
|
/**
|
|
|
* Move the image with relative offsets.
|
|
|
* @param {number} offsetX - The relative offset distance on the x-axis.
|
|
|
* @param {number} offsetY - The relative offset distance on the y-axis.
|
|
|
*/
|
|
|
move: function move(offsetX, offsetY) {
|
|
|
var _image2 = this.image,
|
|
|
left = _image2.left,
|
|
|
top = _image2.top;
|
|
|
|
|
|
|
|
|
this.moveTo(isUndefined(offsetX) ? offsetX : left + Number(offsetX), isUndefined(offsetY) ? offsetY : top + Number(offsetY));
|
|
|
},
|
|
|
|
|
|
|
|
|
/**
|
|
|
* Move the image to an absolute point.
|
|
|
* @param {number} x - The x-axis coordinate.
|
|
|
* @param {number} [y=x] - The y-axis coordinate.
|
|
|
*/
|
|
|
moveTo: function moveTo(x) {
|
|
|
var y = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : x;
|
|
|
|
|
|
if (!this.viewed || this.played || !this.options.movable) {
|
|
|
return;
|
|
|
}
|
|
|
|
|
|
var image = this.image;
|
|
|
|
|
|
var changed = false;
|
|
|
|
|
|
x = Number(x);
|
|
|
y = Number(y);
|
|
|
|
|
|
if (isNumber(x)) {
|
|
|
image.left = x;
|
|
|
changed = true;
|
|
|
}
|
|
|
|
|
|
if (isNumber(y)) {
|
|
|
image.top = y;
|
|
|
changed = true;
|
|
|
}
|
|
|
|
|
|
if (changed) {
|
|
|
this.renderImage();
|
|
|
}
|
|
|
},
|
|
|
|
|
|
|
|
|
/**
|
|
|
* Zoom the image with a relative ratio.
|
|
|
* @param {number} ratio - The target ratio.
|
|
|
* @param {boolean} [hasTooltip] - Indicates if it has a tooltip or not.
|
|
|
* @param {Event} [_event] - The related event if any.
|
|
|
*/
|
|
|
zoom: function zoom(ratio) {
|
|
|
var hasTooltip = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : false;
|
|
|
|
|
|
var _event = arguments.length > 2 && arguments[2] !== undefined ? arguments[2] : null;
|
|
|
|
|
|
var image = this.image;
|
|
|
|
|
|
|
|
|
ratio = Number(ratio);
|
|
|
|
|
|
if (ratio < 0) {
|
|
|
ratio = 1 / (1 - ratio);
|
|
|
} else {
|
|
|
ratio = 1 + ratio;
|
|
|
}
|
|
|
|
|
|
this.zoomTo(image.width * ratio / image.naturalWidth, hasTooltip, _event);
|
|
|
},
|
|
|
|
|
|
|
|
|
/**
|
|
|
* Zoom the image to an absolute ratio.
|
|
|
* @param {number} ratio - The target ratio.
|
|
|
* @param {boolean} [hasTooltip] - Indicates if it has a tooltip or not.
|
|
|
* @param {Event} [_event] - The related event if any.
|
|
|
* @param {Event} [_zoomable] - Indicates if the current zoom is available or not.
|
|
|
*/
|
|
|
zoomTo: function zoomTo(ratio) {
|
|
|
var hasTooltip = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : false;
|
|
|
|
|
|
var _event = arguments.length > 2 && arguments[2] !== undefined ? arguments[2] : null;
|
|
|
|
|
|
var _zoomable = arguments.length > 3 && arguments[3] !== undefined ? arguments[3] : false;
|
|
|
|
|
|
var options = this.options,
|
|
|
image = this.image,
|
|
|
pointers = this.pointers;
|
|
|
|
|
|
|
|
|
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 (_event && ratio > 0.95 && ratio < 1.05) {
|
|
|
ratio = 1;
|
|
|
}
|
|
|
|
|
|
var newWidth = image.naturalWidth * ratio;
|
|
|
var newHeight = image.naturalHeight * ratio;
|
|
|
|
|
|
if (_event && _event.originalEvent) {
|
|
|
var offset = this.$viewer.offset();
|
|
|
var center = pointers && objectKeys(pointers).length > 0 ? getPointersCenter(pointers) : {
|
|
|
pageX: _event.pageX || _event.originalEvent.pageX || 0,
|
|
|
pageY: _event.pageY || _event.originalEvent.pageY || 0
|
|
|
};
|
|
|
|
|
|
// Zoom from the triggering point of the event
|
|
|
image.left -= (newWidth - image.width) * ((center.pageX - offset.left - image.left) / image.width);
|
|
|
image.top -= (newHeight - image.height) * ((center.pageY - offset.top - image.top) / image.height);
|
|
|
} else {
|
|
|
// Zoom from the center of the image
|
|
|
image.left -= (newWidth - image.width) / 2;
|
|
|
image.top -= (newHeight - image.height) / 2;
|
|
|
}
|
|
|
|
|
|
image.width = newWidth;
|
|
|
image.height = newHeight;
|
|
|
image.ratio = ratio;
|
|
|
this.renderImage();
|
|
|
|
|
|
if (hasTooltip) {
|
|
|
this.tooltip();
|
|
|
}
|
|
|
}
|
|
|
},
|
|
|
|
|
|
|
|
|
/**
|
|
|
* Rotate the image with a relative degree.
|
|
|
* @param {number} degree - The rotate degree.
|
|
|
*/
|
|
|
rotate: function rotate(degree) {
|
|
|
this.rotateTo((this.image.rotate || 0) + Number(degree));
|
|
|
},
|
|
|
|
|
|
|
|
|
/**
|
|
|
* Rotate the image to an absolute degree.
|
|
|
* @param {number} degree - The rotate degree.
|
|
|
*/
|
|
|
rotateTo: function rotateTo(degree) {
|
|
|
var image = this.image;
|
|
|
|
|
|
|
|
|
degree = Number(degree);
|
|
|
|
|
|
if (isNumber(degree) && this.viewed && !this.played && this.options.rotatable) {
|
|
|
image.rotate = degree;
|
|
|
this.renderImage();
|
|
|
}
|
|
|
},
|
|
|
|
|
|
|
|
|
/**
|
|
|
* Scale the image on the x-axis.
|
|
|
* @param {number} scaleX - The scale ratio on the x-axis.
|
|
|
*/
|
|
|
scaleX: function scaleX(_scaleX) {
|
|
|
this.scale(_scaleX, this.image.scaleY);
|
|
|
},
|
|
|
|
|
|
|
|
|
/**
|
|
|
* Scale the image on the y-axis.
|
|
|
* @param {number} scaleY - The scale ratio on the y-axis.
|
|
|
*/
|
|
|
scaleY: function scaleY(_scaleY) {
|
|
|
this.scale(this.image.scaleX, _scaleY);
|
|
|
},
|
|
|
|
|
|
|
|
|
/**
|
|
|
* Scale the image.
|
|
|
* @param {number} scaleX - The scale ratio on the x-axis.
|
|
|
* @param {number} [scaleY=scaleX] - The scale ratio on the y-axis.
|
|
|
*/
|
|
|
scale: function scale(scaleX) {
|
|
|
var scaleY = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : scaleX;
|
|
|
|
|
|
if (!this.viewed || this.played || !this.options.scalable) {
|
|
|
return;
|
|
|
}
|
|
|
|
|
|
var image = this.image;
|
|
|
|
|
|
var changed = false;
|
|
|
|
|
|
scaleX = Number(scaleX);
|
|
|
scaleY = Number(scaleY);
|
|
|
|
|
|
if (isNumber(scaleX)) {
|
|
|
image.scaleX = scaleX;
|
|
|
changed = true;
|
|
|
}
|
|
|
|
|
|
if (isNumber(scaleY)) {
|
|
|
image.scaleY = scaleY;
|
|
|
changed = true;
|
|
|
}
|
|
|
|
|
|
if (changed) {
|
|
|
this.renderImage();
|
|
|
}
|
|
|
},
|
|
|
|
|
|
|
|
|
/**
|
|
|
* Play the images.
|
|
|
*/
|
|
|
play: function play() {
|
|
|
var _this4 = this;
|
|
|
|
|
|
if (!this.visible || this.played) {
|
|
|
return;
|
|
|
}
|
|
|
|
|
|
var options = this.options,
|
|
|
$items = this.$items,
|
|
|
$player = this.$player;
|
|
|
|
|
|
|
|
|
if (options.fullscreen) {
|
|
|
this.requestFullscreen();
|
|
|
}
|
|
|
|
|
|
this.played = true;
|
|
|
$player.addClass(CLASS_SHOW);
|
|
|
|
|
|
var list = [];
|
|
|
var index = 0;
|
|
|
|
|
|
$items.each(function (i, item) {
|
|
|
var $item = $(item);
|
|
|
var $img = $item.find('img');
|
|
|
var $image = $('<img src="' + $img.data('originalUrl') + '" alt="' + $img.attr('alt') + '">');
|
|
|
|
|
|
$image.addClass(CLASS_FADE).toggleClass(CLASS_TRANSITION, options.transition);
|
|
|
|
|
|
if ($item.hasClass(CLASS_ACTIVE)) {
|
|
|
$image.addClass(CLASS_IN);
|
|
|
index = i;
|
|
|
}
|
|
|
|
|
|
list.push($image);
|
|
|
$image.one(EVENT_LOAD, {
|
|
|
filled: false
|
|
|
}, $.proxy(_this4.loadImage, _this4));
|
|
|
$player.append($image);
|
|
|
});
|
|
|
|
|
|
if (isNumber(options.interval) && options.interval > 0) {
|
|
|
var length = $items.length;
|
|
|
|
|
|
var playing = function playing() {
|
|
|
_this4.playing = setTimeout(function () {
|
|
|
list[index].removeClass(CLASS_IN);
|
|
|
index += 1;
|
|
|
index = index < length ? index : 0;
|
|
|
list[index].addClass(CLASS_IN);
|
|
|
playing();
|
|
|
}, options.interval);
|
|
|
};
|
|
|
|
|
|
if (length > 1) {
|
|
|
playing();
|
|
|
}
|
|
|
}
|
|
|
},
|
|
|
|
|
|
|
|
|
/**
|
|
|
* Stop play.
|
|
|
*/
|
|
|
stop: function stop() {
|
|
|
if (!this.played) {
|
|
|
return;
|
|
|
}
|
|
|
|
|
|
if (this.options.fullscreen) {
|
|
|
this.exitFullscreen();
|
|
|
}
|
|
|
|
|
|
this.played = false;
|
|
|
clearTimeout(this.playing);
|
|
|
this.$player.removeClass(CLASS_SHOW).empty();
|
|
|
},
|
|
|
|
|
|
|
|
|
/**
|
|
|
* Enter modal mode (only available in inline mode).
|
|
|
*/
|
|
|
full: function full() {
|
|
|
var _this5 = this;
|
|
|
|
|
|
var options = this.options,
|
|
|
$image = this.$image,
|
|
|
$list = this.$list;
|
|
|
|
|
|
|
|
|
if (!this.visible || this.played || this.fulled || !options.inline) {
|
|
|
return;
|
|
|
}
|
|
|
|
|
|
this.fulled = true;
|
|
|
this.$body.addClass(CLASS_OPEN);
|
|
|
this.$button.addClass(CLASS_FULLSCREEN_EXIT);
|
|
|
|
|
|
if (options.transition) {
|
|
|
$image.removeClass(CLASS_TRANSITION);
|
|
|
$list.removeClass(CLASS_TRANSITION);
|
|
|
}
|
|
|
|
|
|
this.$viewer.addClass(CLASS_FIXED).removeAttr('style').css('z-index', options.zIndex);
|
|
|
this.initContainer();
|
|
|
this.viewer = $.extend({}, this.container);
|
|
|
this.renderList();
|
|
|
this.initImage(function () {
|
|
|
_this5.renderImage(function () {
|
|
|
if (options.transition) {
|
|
|
setTimeout(function () {
|
|
|
$image.addClass(CLASS_TRANSITION);
|
|
|
$list.addClass(CLASS_TRANSITION);
|
|
|
}, 0);
|
|
|
}
|
|
|
});
|
|
|
});
|
|
|
},
|
|
|
|
|
|
|
|
|
/**
|
|
|
* Exit modal mode (only available in inline mode).
|
|
|
*/
|
|
|
exit: function exit() {
|
|
|
var _this6 = this;
|
|
|
|
|
|
if (!this.fulled) {
|
|
|
return;
|
|
|
}
|
|
|
|
|
|
var options = this.options,
|
|
|
$image = this.$image,
|
|
|
$list = this.$list;
|
|
|
|
|
|
|
|
|
this.fulled = false;
|
|
|
this.$body.removeClass(CLASS_OPEN);
|
|
|
this.$button.removeClass(CLASS_FULLSCREEN_EXIT);
|
|
|
|
|
|
if (options.transition) {
|
|
|
$image.removeClass(CLASS_TRANSITION);
|
|
|
$list.removeClass(CLASS_TRANSITION);
|
|
|
}
|
|
|
|
|
|
this.$viewer.removeClass(CLASS_FIXED).css('z-index', options.zIndexInline);
|
|
|
this.viewer = $.extend({}, this.parent);
|
|
|
this.renderViewer();
|
|
|
this.renderList();
|
|
|
this.initImage(function () {
|
|
|
_this6.renderImage(function () {
|
|
|
if (options.transition) {
|
|
|
setTimeout(function () {
|
|
|
$image.addClass(CLASS_TRANSITION);
|
|
|
$list.addClass(CLASS_TRANSITION);
|
|
|
}, 0);
|
|
|
}
|
|
|
});
|
|
|
});
|
|
|
},
|
|
|
|
|
|
|
|
|
/**
|
|
|
* Show the current ratio of the image with percentage.
|
|
|
*/
|
|
|
tooltip: function tooltip() {
|
|
|
var _this7 = this;
|
|
|
|
|
|
var options = this.options,
|
|
|
$tooltip = this.$tooltip,
|
|
|
image = this.image;
|
|
|
|
|
|
var classes = [CLASS_SHOW, CLASS_FADE, CLASS_TRANSITION].join(' ');
|
|
|
|
|
|
if (!this.viewed || this.played || !options.tooltip) {
|
|
|
return;
|
|
|
}
|
|
|
|
|
|
$tooltip.text(Math.round(image.ratio * 100) + '%');
|
|
|
|
|
|
if (!this.tooltiping) {
|
|
|
if (options.transition) {
|
|
|
if (this.fading) {
|
|
|
$tooltip.trigger(EVENT_TRANSITIONEND);
|
|
|
}
|
|
|
|
|
|
$tooltip.addClass(classes);
|
|
|
|
|
|
// Force reflow to enable CSS3 transition
|
|
|
// eslint-disable-next-line
|
|
|
$tooltip[0].offsetWidth;
|
|
|
$tooltip.addClass(CLASS_IN);
|
|
|
} else {
|
|
|
$tooltip.addClass(CLASS_SHOW);
|
|
|
}
|
|
|
} else {
|
|
|
clearTimeout(this.tooltiping);
|
|
|
}
|
|
|
|
|
|
this.tooltiping = setTimeout(function () {
|
|
|
if (options.transition) {
|
|
|
$tooltip.one(EVENT_TRANSITIONEND, function () {
|
|
|
$tooltip.removeClass(classes);
|
|
|
_this7.fading = false;
|
|
|
}).removeClass(CLASS_IN);
|
|
|
|
|
|
_this7.fading = true;
|
|
|
} else {
|
|
|
$tooltip.removeClass(CLASS_SHOW);
|
|
|
}
|
|
|
|
|
|
_this7.tooltiping = false;
|
|
|
}, 1000);
|
|
|
},
|
|
|
|
|
|
|
|
|
/**
|
|
|
* Toggle the image size between its natural size and initial size.
|
|
|
*/
|
|
|
toggle: function toggle() {
|
|
|
if (this.image.ratio === 1) {
|
|
|
this.zoomTo(this.initialImage.ratio, true);
|
|
|
} else {
|
|
|
this.zoomTo(1, true);
|
|
|
}
|
|
|
},
|
|
|
|
|
|
|
|
|
/**
|
|
|
* Reset the image to its initial state.
|
|
|
*/
|
|
|
reset: function reset() {
|
|
|
if (this.viewed && !this.played) {
|
|
|
this.image = $.extend({}, this.initialImage);
|
|
|
this.renderImage();
|
|
|
}
|
|
|
},
|
|
|
|
|
|
|
|
|
/**
|
|
|
* Update viewer when images changed.
|
|
|
*/
|
|
|
update: function update() {
|
|
|
var $element = this.$element;
|
|
|
var $images = this.$images;
|
|
|
|
|
|
|
|
|
if (this.isImg) {
|
|
|
// Destroy viewer if the target image was deleted
|
|
|
if (!$element.parent().length) {
|
|
|
this.destroy();
|
|
|
return;
|
|
|
}
|
|
|
} else {
|
|
|
$images = $element.find('img');
|
|
|
this.$images = $images;
|
|
|
this.length = $images.length;
|
|
|
}
|
|
|
|
|
|
if (this.ready) {
|
|
|
var indexes = [];
|
|
|
var index = void 0;
|
|
|
|
|
|
$.each(this.$items, function (i, item) {
|
|
|
var img = $(item).find('img')[0];
|
|
|
var image = $images[i];
|
|
|
|
|
|
if (image) {
|
|
|
if (image.src !== img.src) {
|
|
|
indexes.push(i);
|
|
|
}
|
|
|
} else {
|
|
|
indexes.push(i);
|
|
|
}
|
|
|
});
|
|
|
|
|
|
this.$list.width('auto');
|
|
|
this.initList();
|
|
|
|
|
|
if (this.visible) {
|
|
|
if (this.length) {
|
|
|
if (this.viewed) {
|
|
|
index = $.inArray(this.index, indexes);
|
|
|
|
|
|
if (index >= 0) {
|
|
|
this.viewed = false;
|
|
|
this.view(Math.max(this.index - (index + 1), 0));
|
|
|
} else {
|
|
|
this.$items.eq(this.index).addClass(CLASS_ACTIVE);
|
|
|
}
|
|
|
}
|
|
|
} else {
|
|
|
this.$image = null;
|
|
|
this.viewed = false;
|
|
|
this.index = 0;
|
|
|
this.image = null;
|
|
|
this.$canvas.empty();
|
|
|
this.$title.empty();
|
|
|
}
|
|
|
}
|
|
|
}
|
|
|
},
|
|
|
|
|
|
|
|
|
/**
|
|
|
* Destroy the viewer instance.
|
|
|
*/
|
|
|
destroy: function destroy() {
|
|
|
var $element = this.$element;
|
|
|
|
|
|
|
|
|
if (this.options.inline) {
|
|
|
this.unbind();
|
|
|
} else {
|
|
|
if (this.visible) {
|
|
|
this.unbind();
|
|
|
}
|
|
|
|
|
|
$element.off(EVENT_CLICK, this.start);
|
|
|
}
|
|
|
|
|
|
this.unbuild();
|
|
|
$element.removeData(NAMESPACE);
|
|
|
}
|
|
|
};
|
|
|
|
|
|
var _window$1 = window;
|
|
|
var document$1 = _window$1.document;
|
|
|
|
|
|
|
|
|
var others = {
|
|
|
// A shortcut for triggering custom events
|
|
|
trigger: function trigger(type, data) {
|
|
|
var e = $.Event(type, data);
|
|
|
|
|
|
this.$element.trigger(e);
|
|
|
|
|
|
return e;
|
|
|
},
|
|
|
shown: function shown() {
|
|
|
var options = this.options;
|
|
|
|
|
|
|
|
|
this.transitioning = false;
|
|
|
this.fulled = true;
|
|
|
this.visible = true;
|
|
|
this.render();
|
|
|
this.bind();
|
|
|
|
|
|
if ($.isFunction(options.shown)) {
|
|
|
this.$element.one(EVENT_SHOWN, options.shown);
|
|
|
}
|
|
|
|
|
|
this.trigger(EVENT_SHOWN);
|
|
|
},
|
|
|
hidden: function hidden() {
|
|
|
var options = this.options;
|
|
|
|
|
|
|
|
|
this.transitioning = false;
|
|
|
this.viewed = false;
|
|
|
this.fulled = false;
|
|
|
this.visible = false;
|
|
|
this.unbind();
|
|
|
this.$body.removeClass(CLASS_OPEN);
|
|
|
this.$viewer.addClass(CLASS_HIDE);
|
|
|
this.resetList();
|
|
|
this.resetImage();
|
|
|
|
|
|
if ($.isFunction(options.hidden)) {
|
|
|
this.$element.one(EVENT_HIDDEN, options.hidden);
|
|
|
}
|
|
|
|
|
|
this.trigger(EVENT_HIDDEN);
|
|
|
},
|
|
|
requestFullscreen: function requestFullscreen() {
|
|
|
if (this.fulled && !document$1.fullscreenElement && !document$1.mozFullScreenElement && !document$1.webkitFullscreenElement && !document$1.msFullscreenElement) {
|
|
|
var documentElement = document$1.documentElement;
|
|
|
|
|
|
|
|
|
if (documentElement.requestFullscreen) {
|
|
|
documentElement.requestFullscreen();
|
|
|
} else if (documentElement.msRequestFullscreen) {
|
|
|
documentElement.msRequestFullscreen();
|
|
|
} else if (documentElement.mozRequestFullScreen) {
|
|
|
documentElement.mozRequestFullScreen();
|
|
|
} else if (documentElement.webkitRequestFullscreen) {
|
|
|
documentElement.webkitRequestFullscreen(Element.ALLOW_KEYBOARD_INPUT);
|
|
|
}
|
|
|
}
|
|
|
},
|
|
|
exitFullscreen: function exitFullscreen() {
|
|
|
if (this.fulled) {
|
|
|
if (document$1.exitFullscreen) {
|
|
|
document$1.exitFullscreen();
|
|
|
} else if (document$1.msExitFullscreen) {
|
|
|
document$1.msExitFullscreen();
|
|
|
} else if (document$1.mozCancelFullScreen) {
|
|
|
document$1.mozCancelFullScreen();
|
|
|
} else if (document$1.webkitExitFullscreen) {
|
|
|
document$1.webkitExitFullscreen();
|
|
|
}
|
|
|
}
|
|
|
},
|
|
|
change: function change(event) {
|
|
|
var pointers = this.pointers;
|
|
|
|
|
|
var pointer = pointers[Object.keys(pointers)[0]];
|
|
|
var offsetX = pointer.endX - pointer.startX;
|
|
|
var offsetY = pointer.endY - pointer.startY;
|
|
|
|
|
|
switch (this.action) {
|
|
|
// Move the current image
|
|
|
case ACTION_MOVE:
|
|
|
this.move(offsetX, offsetY);
|
|
|
break;
|
|
|
|
|
|
// Zoom the current image
|
|
|
case ACTION_ZOOM:
|
|
|
this.zoom(getMaxZoomRatio(pointers), false, event);
|
|
|
|
|
|
this.startX2 = this.endX2;
|
|
|
this.startY2 = this.endY2;
|
|
|
break;
|
|
|
|
|
|
case ACTION_SWITCH:
|
|
|
this.action = 'switched';
|
|
|
|
|
|
if (Math.abs(offsetX) > Math.abs(offsetY)) {
|
|
|
if (offsetX > 1) {
|
|
|
this.prev();
|
|
|
} else if (offsetX < -1) {
|
|
|
this.next();
|
|
|
}
|
|
|
}
|
|
|
|
|
|
break;
|
|
|
|
|
|
default:
|
|
|
}
|
|
|
|
|
|
// Override
|
|
|
$.each(pointers, function (i, p) {
|
|
|
p.startX = p.endX;
|
|
|
p.startY = p.endY;
|
|
|
});
|
|
|
},
|
|
|
isSwitchable: function isSwitchable() {
|
|
|
var image = this.image,
|
|
|
viewer = this.viewer;
|
|
|
|
|
|
|
|
|
return image.left >= 0 && image.top >= 0 && image.width <= viewer.width && image.height <= viewer.height;
|
|
|
}
|
|
|
};
|
|
|
|
|
|
var _createClass = function () { function defineProperties(target, props) { for (var i = 0; i < props.length; i++) { var descriptor = props[i]; descriptor.enumerable = descriptor.enumerable || false; descriptor.configurable = true; if ("value" in descriptor) descriptor.writable = true; Object.defineProperty(target, descriptor.key, descriptor); } } return function (Constructor, protoProps, staticProps) { if (protoProps) defineProperties(Constructor.prototype, protoProps); if (staticProps) defineProperties(Constructor, staticProps); return Constructor; }; }();
|
|
|
|
|
|
function _classCallCheck(instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError("Cannot call a class as a function"); } }
|
|
|
|
|
|
var Viewer = function () {
|
|
|
/**
|
|
|
* Start the new Viewer.
|
|
|
* @param {Element} element - The target element for viewing.
|
|
|
* @param {Object} [options={}] - The configuration options.
|
|
|
*/
|
|
|
function Viewer(element) {
|
|
|
var options = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : {};
|
|
|
|
|
|
_classCallCheck(this, Viewer);
|
|
|
|
|
|
if (!element || element.nodeType !== 1) {
|
|
|
throw new Error('The first argument is required and must be an element.');
|
|
|
}
|
|
|
|
|
|
this.element = element;
|
|
|
this.$element = $(element);
|
|
|
this.options = $.extend({}, DEFAULTS, $.isPlainObject(options) && options);
|
|
|
this.action = '';
|
|
|
this.target = null;
|
|
|
this.timeout = null;
|
|
|
this.index = 0;
|
|
|
this.length = 0;
|
|
|
this.ready = false;
|
|
|
this.fading = false;
|
|
|
this.fulled = false;
|
|
|
this.isImg = false;
|
|
|
this.played = false;
|
|
|
this.playing = false;
|
|
|
this.tooltiping = false;
|
|
|
this.transitioning = false;
|
|
|
this.viewed = false;
|
|
|
this.visible = false;
|
|
|
this.wheeling = false;
|
|
|
this.pointers = {};
|
|
|
this.init();
|
|
|
}
|
|
|
|
|
|
_createClass(Viewer, [{
|
|
|
key: 'init',
|
|
|
value: function init() {
|
|
|
var _this = this;
|
|
|
|
|
|
var $element = this.$element,
|
|
|
options = this.options;
|
|
|
|
|
|
var isImg = $element.is('img');
|
|
|
var $images = isImg ? $element : $element.find('img');
|
|
|
var length = $images.length;
|
|
|
|
|
|
|
|
|
if (!length) {
|
|
|
return;
|
|
|
}
|
|
|
|
|
|
// Override `transition` option if it is not supported
|
|
|
if (typeof document.createElement(NAMESPACE).style.transition === 'undefined') {
|
|
|
options.transition = false;
|
|
|
}
|
|
|
|
|
|
this.isImg = isImg;
|
|
|
this.length = length;
|
|
|
this.count = 0;
|
|
|
this.$images = $images;
|
|
|
this.$body = $('body');
|
|
|
|
|
|
if (options.inline) {
|
|
|
$element.one(EVENT_READY, function () {
|
|
|
_this.view();
|
|
|
});
|
|
|
|
|
|
$images.each(function (i, image) {
|
|
|
if (image.complete) {
|
|
|
_this.progress();
|
|
|
} else {
|
|
|
$(image).one(EVENT_LOAD, $.proxy(_this.progress, _this));
|
|
|
}
|
|
|
});
|
|
|
} else {
|
|
|
$element.on(EVENT_CLICK, $.proxy(this.start, this));
|
|
|
}
|
|
|
}
|
|
|
}, {
|
|
|
key: 'progress',
|
|
|
value: function progress() {
|
|
|
this.count += 1;
|
|
|
|
|
|
if (this.count === this.length) {
|
|
|
this.build();
|
|
|
}
|
|
|
}
|
|
|
}, {
|
|
|
key: 'build',
|
|
|
value: function build() {
|
|
|
var $element = this.$element,
|
|
|
options = this.options;
|
|
|
|
|
|
|
|
|
if (this.ready) {
|
|
|
return;
|
|
|
}
|
|
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var $parent = $element.parent();
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var $viewer = $(TEMPLATE);
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var $button = $viewer.find('.' + NAMESPACE + '-button');
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var $navbar = $viewer.find('.' + NAMESPACE + '-navbar');
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var $title = $viewer.find('.' + NAMESPACE + '-title');
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var $toolbar = $viewer.find('.' + NAMESPACE + '-toolbar');
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this.$parent = $parent;
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this.$viewer = $viewer;
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this.$button = $button;
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this.$navbar = $navbar;
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this.$title = $title;
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this.$toolbar = $toolbar;
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this.$canvas = $viewer.find('.' + NAMESPACE + '-canvas');
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this.$footer = $viewer.find('.' + NAMESPACE + '-footer');
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this.$list = $viewer.find('.' + NAMESPACE + '-list');
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this.$player = $viewer.find('.' + NAMESPACE + '-player');
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this.$tooltip = $viewer.find('.' + NAMESPACE + '-tooltip');
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$title.addClass(!options.title ? CLASS_HIDE : getResponsiveClass(options.title));
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$toolbar.addClass(!options.toolbar ? CLASS_HIDE : getResponsiveClass(options.toolbar));
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$toolbar.find('li[class*=zoom]').toggleClass(CLASS_INVISIBLE, !options.zoomable);
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$toolbar.find('li[class*=flip]').toggleClass(CLASS_INVISIBLE, !options.scalable);
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if (!options.rotatable) {
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$toolbar.find('li[class*=rotate]').addClass(CLASS_INVISIBLE).appendTo($toolbar);
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}
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$navbar.addClass(!options.navbar ? CLASS_HIDE : getResponsiveClass(options.navbar));
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$button.toggleClass(CLASS_HIDE, !options.button);
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if (options.inline) {
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$button.addClass(CLASS_FULLSCREEN);
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$viewer.css('z-index', options.zIndexInline);
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if ($parent.css('position') === 'static') {
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$parent.css('position', 'relative');
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}
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$element.after($viewer);
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} else {
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$button.addClass(CLASS_CLOSE);
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$viewer.css('z-index', options.zIndex).addClass([CLASS_FIXED, CLASS_FADE, CLASS_HIDE].join(' ')).appendTo('body');
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}
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if (options.inline) {
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this.render();
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this.bind();
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this.visible = true;
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}
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this.ready = true;
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if ($.isFunction(options.ready)) {
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$element.one(EVENT_READY, options.ready);
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}
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this.trigger(EVENT_READY);
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}
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}, {
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key: 'unbuild',
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value: function unbuild() {
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if (!this.ready) {
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return;
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}
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this.ready = false;
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this.$viewer.remove();
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}
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/**
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* Change the default options.
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* @static
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* @param {Object} options - The new default options.
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*/
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}], [{
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key: 'setDefaults',
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value: function setDefaults(options) {
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$.extend(DEFAULTS, options);
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}
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}]);
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return Viewer;
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}();
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$.extend(Viewer.prototype, render, events, handlers, methods, others);
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var AnotherViewer = $.fn.viewer;
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$.fn.viewer = function jQueryViewer(option) {
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for (var _len = arguments.length, args = Array(_len > 1 ? _len - 1 : 0), _key = 1; _key < _len; _key++) {
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args[_key - 1] = arguments[_key];
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}
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var result = void 0;
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this.each(function (i, element) {
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var $element = $(element);
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var data = $element.data(NAMESPACE);
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if (!data) {
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if (/destroy/.test(option)) {
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return;
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}
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var options = $.extend({}, $element.data(), $.isPlainObject(option) && option);
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data = new Viewer(element, options);
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$element.data(NAMESPACE, data);
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}
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if (isString(option)) {
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var fn = data[option];
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if ($.isFunction(fn)) {
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result = fn.apply(data, args);
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}
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}
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});
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return isUndefined(result) ? this : result;
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};
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$.fn.viewer.Constructor = Viewer;
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$.fn.viewer.setDefaults = Viewer.setDefaults;
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$.fn.viewer.noConflict = function noConflict() {
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$.fn.viewer = AnotherViewer;
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return this;
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};
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|
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})));
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