/**放大*/
function viewImg(item) {
    layer.photos({
        shade: 0.5,
        footer: false,
        photos: {
            "title": "图片预览",
            "start": 0,
            "data": [
                {
                    "pid": 1,
                    "src": imgUrl + item.originalFilePath + "?token=" + tokens,
                }
            ]
        },
    });
}

/**原图下载*/
function imgDownLoad(item, type) {
    let path = type === 1 ? item.originalFilePath : item.watermarkFilePath;
    let obj = {
        imgPath: path,
    }
    let loadingMsg = layer.msg("照片下载中,请稍候...", {icon: 16, scrollbar: false, time: 0,});
    let url = dataUrl + "/common/download/downloadImage?token=" + tokens + "&encryptedData=" + encodeURIComponent(encryptCBC(JSON.stringify(obj)));
    let xhr = new XMLHttpRequest();
    xhr.open("get", url, true);
    xhr.responseType = "blob"; // 转换流
    xhr.setRequestHeader('Content-Type', 'application/json;charset=UTF-8')
    xhr.onload = function () {
        layer.close(loadingMsg);
        if (this.status === 200) {
            let blob = this.response;
            var a = document.createElement("a");
            var url = window.URL.createObjectURL(blob);
            a.href = url;
            a.download = path.substring(path.lastIndexOf('/') + 1, path.length); // 文件名
        } else {
            layer.msg("照片下载发生异常,请稍后重试", {icon: 16, scrollbar: false, time: 2000});
        }
        a.click();
        window.URL.revokeObjectURL(url);
    };
    xhr.send();
}