MWF.xDesktop.requireApp("CRM", "Explorer", null, false);
MWF.xDesktop.requireApp("Template", "Explorer", null, false);
MWF.xApplication.CRM.PicTool = new Class({
    Extends: MWF.xApplication.CRM.Explorer,
    Implements: [Options, Events],

    initialize: function(app){
        this.app = app;
    },
    initPhotoHtml: function(toolSelector){
        debugger;
        var imgtoolHtml = '<div class="pswp" tabindex="-1" role="dialog" aria-hidden="true"><div class="pswp__bg"></div><div class="pswp__scroll-wrap">'+
            '<div class="pswp__container"><div class="pswp__item"></div><div class="pswp__item"></div><div class="pswp__item"></div></div>'+
            '<div class="pswp__ui pswp__ui--hidden"><div class="pswp__top-bar"><div class="pswp__counter"></div><button class="pswp__button pswp__button--close" title="Close (Esc)"></button>'+
            '<button class="pswp__button pswp__button--share" title="Share"></button><button class="pswp__button pswp__button--fs" title="Toggle fullscreen"></button><button class="pswp__button pswp__button--zoom" title="Zoom in/out"></button>'+
            '<div class="pswp__preloader"><div class="pswp__preloader__icn"><div class="pswp__preloader__cut"><div class="pswp__preloader__donut"></div></div></div></div></div>'+
            '<div class="pswp__share-modal pswp__share-modal--hidden pswp__single-tap"><div class="pswp__share-tooltip"></div></div>'+
            ' <button class="pswp__button pswp__button--arrow--left" title="Previous (arrow left)"></button><button class="pswp__button pswp__button--arrow--right" title="Next (arrow right)"></button>'+
            '<div class="pswp__caption"><div class="pswp__caption__center"></div></div></div></div></div>'
        jQuery(toolSelector).append(imgtoolHtml);
    },
    initPhotoSwipeFromDOM: function(gallerySelector){
        // 解析来自DOM元素幻灯片数据（URL，标题，大小...）
        // (children of gallerySelector)
        var parseThumbnailElements = function(el) {
            var thumbElements = el.childNodes,
                numNodes = thumbElements.length,
                items = [],
                figureEl,
                linkEl,
                size,
                item,
                divEl;

            for(var i = 0; i < numNodes; i++) {

                figureEl = thumbElements[i]; // <figure> element

                // 仅包括元素节点
                if(figureEl.nodeType !== 1) {
                    continue;
                }
                divEl = figureEl.children[0];
                linkEl = divEl.children[0]; // <a> element

                size = linkEl.getAttribute('data-size').split('x');

                // 创建幻灯片对象
                item = {
                    src: linkEl.getAttribute('href'),
                    w: parseInt(size[0], 10),
                    h: parseInt(size[1], 10)
                };



                if(figureEl.children.length > 1) {
                    item.title = figureEl.children[1].innerHTML;
                }

                if(linkEl.children.length > 0) {
                    item.msrc = linkEl.children[0].getAttribute('src');
                }

                item.el = figureEl; // 保存链接元素 for getThumbBoundsFn
                items.push(item);
            }

            return items;
        };

        // 查找最近的父节点
        var closest = function closest(el, fn) {
            return el && ( fn(el) ? el : closest(el.parentNode, fn) );
        };

        // 当用户点击缩略图触发
        var onThumbnailsClick = function(e) {
            e = e || window.event;
            e.preventDefault ? e.preventDefault() : e.returnValue = false;

            var eTarget = e.target || e.srcElement;

            // find root element of slide
            var clickedListItem = closest(eTarget, function(el) {
                return (el.tagName && el.tagName.toUpperCase() === 'FIGURE');
            });

            if(!clickedListItem) {
                return;
            }

            // find index of clicked item by looping through all child nodes
            // alternatively, you may define index via data- attribute
            var clickedGallery = clickedListItem.parentNode,
                childNodes = clickedListItem.parentNode.childNodes,
                numChildNodes = childNodes.length,
                nodeIndex = 0,
                index;

            for (var i = 0; i < numChildNodes; i++) {
                if(childNodes[i].nodeType !== 1) {
                    continue;
                }

                if(childNodes[i] === clickedListItem) {
                    index = nodeIndex;
                    break;
                }
                nodeIndex++;
            }



            if(index >= 0) {
                // open PhotoSwipe if valid index found
                openPhotoSwipe( index, clickedGallery );
            }
            return false;
        };

        // parse picture index and gallery index from URL (#&pid=1&gid=2)
        var photoswipeParseHash = function() {
            var hash = window.location.hash.substring(1),
                params = {};

            if(hash.length < 5) {
                return params;
            }

            var vars = hash.split('&');
            for (var i = 0; i < vars.length; i++) {
                if(!vars[i]) {
                    continue;
                }
                var pair = vars[i].split('=');
                if(pair.length < 2) {
                    continue;
                }
                params[pair[0]] = pair[1];
            }

            if(params.gid) {
                params.gid = parseInt(params.gid, 10);
            }

            return params;
        };

        var openPhotoSwipe = function(index, galleryElement, disableAnimation, fromURL) {
            var pswpElement = document.querySelectorAll('.pswp')[0],
                gallery,
                options,
                items;

            items = parseThumbnailElements(galleryElement);

            // 这里可以定义参数
            options = {
                barsSize: {
                    top: 100,
                    bottom: 100
                },
                bgOpacity: 0.5,
                fullscreenEl : false,
                shareButtons: [
                    {id:'wechat', label:'分享微信', url:'#'},
                    {id:'weibo', label:'新浪微博', url:'#'},
                    {id:'download', label:'保存图片', url:'{{raw_image_url}}', download:true}
                ],

                // define gallery index (for URL)
                galleryUID: galleryElement.getAttribute('data-pswp-uid'),

                getThumbBoundsFn: function(index) {
                    // See Options -> getThumbBoundsFn section of documentation for more info
                    var thumbnail = items[index].el.getElementsByTagName('img')[0], // find thumbnail
                        pageYScroll = window.pageYOffset || document.documentElement.scrollTop,
                        rect = thumbnail.getBoundingClientRect();

                    return {x:rect.left, y:rect.top + pageYScroll, w:rect.width};
                }

            };

            // PhotoSwipe opened from URL
            if(fromURL) {
                if(options.galleryPIDs) {
                    // parse real index when custom PIDs are used
                    for(var j = 0; j < items.length; j++) {
                        if(items[j].pid == index) {
                            options.index = j;
                            break;
                        }
                    }
                } else {
                    // in URL indexes start from 1
                    options.index = parseInt(index, 10) - 1;
                }
            } else {
                options.index = parseInt(index, 10);
            }

            // exit if index not found
            if( isNaN(options.index) ) {
                return;
            }

            if(disableAnimation) {
                options.showAnimationDuration = 0;
            }

            // Pass data to PhotoSwipe and initialize it
            gallery = new PhotoSwipe( pswpElement, PhotoSwipeUI_Default, items, options);
            gallery.init();
        };

        // loop through all gallery elements and bind events
        var galleryElements = document.querySelectorAll( gallerySelector );

        for(var i = 0, l = galleryElements.length; i < l; i++) {
            galleryElements[i].setAttribute('data-pswp-uid', i+1);
            galleryElements[i].onclick = onThumbnailsClick;
        }

        // Parse URL and open gallery if it contains #&pid=3&gid=1
        var hashData = photoswipeParseHash();
        if(hashData.pid && hashData.gid) {
            openPhotoSwipe( hashData.pid ,  galleryElements[ hashData.gid - 1 ], true, true );
        }
    }
});