/*!
 * Cropper v3.0.0
 */

layui.config({
    base: laybase+'Scripts/layui/ext/' //layui自定义layui组件目录
}).define(['jquery','layer','cropper'],function (exports) {
    var $ = layui.jquery
        ,layer = layui.layer;
    var html = "<link rel=\"stylesheet\" href=\"" +laybase+"Scripts/layui/ext/cropper.css\">\n" +
        "<div class=\"layui-fluid showImgEdit\" style=\"display: none\">\n" +
        "    <div class=\"layui-form-item\">\n" +
        "        <div class=\"layui-input-inline layui-btn-container\" style=\"width: auto;\">\n" +
        "            <label for=\"cropper_avatarImgUpload\" class=\"layui-btn layui-btn-primary\">\n" +
        "                <i class=\"layui-icon\">&#xe67c;</i>选择图片\n" +
        "            </label>\n" +
        "            <input class=\"layui-upload-file\" id=\"cropper_avatarImgUpload\" type=\"file\" value=\"选择图片\" name=\"file\">\n" +
        "        </div>\n" +
        "        <div class=\"layui-form-mid layui-word-aux\">头像的尺寸限定150x150px,大小在50kb以内</div>\n" +
        "    </div>\n" +
        "    <div class=\"layui-row layui-col-space15\">\n" +
        "        <div class=\"layui-col-xs9\">\n" +
        "            <div class=\"readyimg\" style=\"height:450px;background-color: rgb(247, 247, 247);\">\n" +
        "                <img src=\"\" >\n" +
        "            </div>\n" +
        "        </div>\n" +
        "        <div class=\"layui-col-xs3\">\n" +
        "            <div class=\"img-preview\" style=\"width:200px;height:200px;overflow:hidden\">\n" +
        "            </div>\n" +
        "        </div>\n" +
        "    </div>\n" +
        "    <div class=\"layui-row layui-col-space15\">\n" +
        "        <div class=\"layui-col-xs9\">\n" +
        "            <div class=\"layui-row\">\n" +
        "                <div class=\"layui-col-xs6\">\n" +
        "                    <button type=\"button\" class=\"layui-btn layui-icon layui-icon-left\" cropper-event=\"rotate\" data-option=\"-15\" title=\"Rotate -90 degrees\"> 向左旋转</button>\n" +
        "                    <button type=\"button\" class=\"layui-btn layui-icon layui-icon-right\" cropper-event=\"rotate\" data-option=\"15\" title=\"Rotate 90 degrees\"> 向右旋转</button>\n" +
        "                </div>\n" +
        "                <div class=\"layui-col-xs5\" style=\"text-align: right;\">\n" +
        "                    <button type=\"button\" class=\"layui-btn layui-icon layui-icon-refresh\" cropper-event=\"reset\" title=\"重置图片\"></button>\n" +
        "                </div>\n" +
        "            </div>\n" +
        "        </div>\n" +
        "        <div class=\"layui-col-xs3\">\n" +
        "            <button class=\"layui-btn layui-btn-fluid\" cropper-event=\"confirmSave\" type=\"button\"> 保存修改</button>\n" +
        "        </div>\n" +
        "    </div>\n" +
        "\n" +
        "</div>";
    var obj = {
        render: function (e) {
            if ($(".showImgEdit").length==0)
                $('body').append(html);
            var self = this,
                elem = e.elem,
                saveW = e.saveW,
                saveH = e.saveH,
                mark = e.mark,
                area = e.area,
                url = e.url,
                done = e.done;

            var content = $('.showImgEdit')
                ,image = $(".showImgEdit .readyimg img")
                ,preview = '.showImgEdit .img-preview'
                ,file = $(".showImgEdit input[name='file']")
                , options = { aspectRatio: mark, preview: preview, viewMode: 1 };
            $(elem).on('click', function () {
                editImg = elem;
                layer.open({
                    type: 1
                    , content: content
                    , area: area
                    , success: function () {
                       
                        //默认的图片附件是不是存在
                        var elementID = "Img" + $(elem).attr("data-ref");
                        //获取原始的图片src
                        var src = $("#" + elementID).attr("src");
                        $(".showImgEdit .readyimg img").cropper('destroy').attr('src', src);
                        image.cropper(options);
                    }
                    , cancel: function (index) {
                        layer.close(index);
                        image.cropper('destroy');
                    }
                });
                $(".layui-btn-fluid").on('click', function () {
                    var event = $(this).attr("cropper-event");
                    //监听确认保存图像
                    if (event === 'confirmSave') {
                        if (editImg == elem) {
                            image.cropper("getCroppedCanvas", {
                                width: saveW,
                                height: saveH
                            }).toBlob(function (blob) {
                                var formData = new FormData();
                                formData.append('file', blob, 'head.jpg');
                                $.ajax({
                                    method: "post",
                                    url: url, //用于文件上传的服务器端请求地址
                                    data: formData,
                                    processData: false,
                                    contentType: false,
                                    success: function (result) {
                                        if(typeof result == "string")
                                             result = JSON.parse(result);
                                        if (result.SourceImage != undefined) {
                                            layer.closeAll('page');
                                            return done(result);
                                        } else if (result.err != undefined) {
                                            layer.alert("文件上传报错");
                                        }

                                    }
                                });
                            });
                        }
                        
                        //监听旋转
                    } else if (event === 'rotate') {
                        var option = $(this).attr('data-option');
                        image.cropper('rotate', option);
                        //重设图片
                    } else if (event === 'reset') {
                        image.cropper('reset');
                    }

                });
            });
            
            //文件选择
            file.change(function () {
                var r = new FileReader();
                var f = this.files[0];
                r.readAsDataURL(f);
                r.onload = function (e) {
                    image.cropper('destroy').attr('src', this.result).cropper(options);
                };
            });
        }

    };
    exports('croppers', obj);
});