/**
 * 分页预览对象
 * @class FR.PagePane
 * @extends FR.BasePane
 */
$.extend(FR.PagePane.prototype, {
    /**
     * @property {Number} 当前页所在总页数中的序号
     */
    currentPageIndex: 0, // 该ReportPage所属的ReportPage集中的序号

    /**
     * @property {Number} 总页数
     */
    reportTotalPage: 0, // 该ReportPage所属的ReportPage集成生成的总的ReportPage的个数

    /**
     * @property {Number} 正在加载的页的序号
     */
    isLoadingPage: -1,

    /**
     * @property {Number} 已经加载的页序号组成的数组
     */
    pagesLoaded: [],
    pagesBorder: false, //是否显示分页预览时的边框,冻结的时候必须显示

    /**
     * 转向报表的第一页
     *
     *      @example
     *      contentPane.gotoFirstPage();// 跳转到首页
     */
    gotoFirstPage: function () {
        this.gotoPage(1);
    },

    /**
     * 转向报表的上一页
     *
     *      @example
     *      contentPane.gotoPreviousPage();//跳转上一页
     */
    gotoPreviousPage: function () {
        if (this.currentPageIndex <= 1) {
            return;
        }
        this.gotoPage(this.currentPageIndex - 1);
    },

    /**
     * 转向报表的下一页
     *
     *      @example
     *      contentPane.gotoNextPage();//跳转到下一页
     */
    gotoNextPage: function () {
        this.gotoPage(this.currentPageIndex + 1);
    },

    /**
     * 转向报表的最后一页
     *
     *      @example
     *      contentPane.gotoLastPage();//跳转到最后一页
     */
    gotoLastPage: function () {
        this.gotoPage(2147483647);
    },

    /**
     * 转向报表的指定页
     *
     *      @example
     *      contentPane.gotoPage(2);//跳转到第二页
     *
     * @param {Number} pn 页序号，序号从1开始
     */
    gotoPage: function (pn) {
        if (typeof pn != 'number' || isNaN(pn)) {
            return;
        }
        if (pn < 1) {
            pn = 1;
        }
        // 表示正在加载页面
        if (this.isLoadingPage >= 0) {
            return;
        }
        this.fireEvent(FR.Events.STARTLOAD);

        // 标记正在加载页面
        this.isLoadingPage = pn;

        //多sheet预览, 某个sheet冻结会设置成hidden, 其他sheet非冻结时默认overflow:auto, 不然滚动条会消失
        this.$contentPane.css({
            overflow: 'auto'
        });
        var para = {
            op: "page_content",
            sessionID: this.currentSessionID,
            pn: pn
        };

        if(FR.PagePane.setWidthHeight){
            //ie8页面js初始化过程中拿不到Window.document的宽高.
            FR.PagePane.setWidthHeight();
        }
        //插件的扩展参数加进来
        $.extend(para, FR.PagePane.exetendPara, {__fit__: this.__fit__});

        // alex:下面强制设置innerHTML为空字符串,jQuery.html()方法会调用empty(),很费时间
        this.$contentPane.__load__({
            url: FR.servletURL,
            params: para,
            scripts: true,
            forceDisplay: true,
            timeout: 3600000,
            loadHtml: function (html) {
                if ( FR.Browser.r.isInnerHtmlSuitable) {
                    for (var i = 0; i < this.length; i++) {
                        this[i].innerHTML = html;
                    }
                } else {
                    this.html(html);
                }
            },
            callback: function () {
                FR._executeScriptFromHtml(this.$contentPane.html());

                this.fireEvent(FR.Events.AFTERLOAD);
                this.afterLoad();

                // carl:暂时只有图表
                this.$contentPane.asComponent({type: "fr_form", selector: 'td[widget]'});
                var $contentDIV = $(".pageContentDIV", this.$contentPane);
                var borderCss = '1px solid rgb(149, 149, 149)';
                var $frozenPage = $(".frozen-page", this.$contentPane);

                if ($frozenPage.length > 0) {
                    // richer:开始准备冻结
                    var isCenter = $contentDIV.hasClass("contentDIV");

                    if (isCenter) {	// denny: 冻结且，居中显示
                        //Sean: 居中且冻结时必须显示边框，否则不好看
                        $contentDIV.css('border', borderCss);
                        var self = this;
                        var frozen_layout = function () {
                            self.$contentPane.css("overflow", "hidden");
                            $frozenPage.css("height", $contentDIV.height() - parseInt($('.report-background', $contentDIV).css("top")));
                            var pageWidth = Math.min(self.$contentPane.width(), $contentDIV.width());
                            $frozenPage.css("width", pageWidth - parseInt($('.report-background', $contentDIV).css("left")));
                            FR.layoutFrozen($frozenPage, self.$contentPane.offset().top);
                        };
                        frozen_layout();

                        //17是滚动条高度
                        var $footer = $(".HF-footer", this.$container);
                        var footerTop = $('.frozen-center').height() + $('.frozen-north').height() - $footer.height() - 17 +
                            parseInt($('.report-background').css('top'));
                        $footer.css('top', footerTop + 'px');
                    } else {

                        this.$contentPane.asComponent({type: "border", items: [{region: 'center', el: $contentDIV}]});

                        var regions = [{region: 'center', el: $frozenPage}];
                        var $header = $(".HF-header", this.$container);
                        if ($header.length > 0) {
                            regions.push({region: 'north', el: $header});
                        }
                        var $footer = $(".HF-footer", this.$container);
                        if ($footer.length > 0) {
                            regions.push({region: 'south', el: $footer});
                        }

                        $contentDIV.asComponent({type: "border", items: regions});
                        FR.layoutFrozen($frozenPage, this.$contentPane.offset().top);
                        this.$contentPane.doLayout();
                    }

                    if (FR.Browser.isIE8Before() && $.support.boxModel === true) {
                        var initColCell = function (element, ano_row_ranges) {
                            var col_ranges = [];
                            col_ranges[0] = 0;
                            var $cols = element.find('colgroup:eq(0)').children();
                            var $col;
                            var row_size = col_ranges.length;
                            $.each($cols, function (idx, col) {
                                $col = $(col);
                                if (ano_row_ranges) {
                                    var h = ano_row_ranges[idx + row_size] - ano_row_ranges[idx + row_size - 1];
                                    if (col.offsetWidth != h) {
                                        var ofs = parseInt($col.css("width")) + h - col.offsetWidth;
                                        $col.css("width", ofs);
                                        if (idx === 0 && col.offsetWidth !== h) {
                                            $col.css("width", ofs + h - col.offsetWidth);
                                        }
                                    }
                                } else {
                                    col_ranges[idx + row_size] = col_ranges[idx + row_size - 1] + col.offsetWidth;
                                }
                            });
                            return col_ranges;
                        };

                        var f_corner = $('.frozen-corner', this.$container);
                        if (f_corner.length > 0) {
                            var col_ranges = initColCell($('.frozen-west', this.$container));
                            initColCell(f_corner, col_ranges);
                        }
                    }
                } else {
                    if (this.pagesBorder === true) {
                        $contentDIV.css('border', borderCss);
                    } else {
                        $contentDIV.css('border', 'none');
                    }
                }

                //wikky:把页脚的top调整下，防止页脚遮挡内容
                if ($(".HF-footer", this.$container).length > 0) {
                    var tableHeight = $(".report-background", this.$container).find("table").height();
                    var backgroundHeight = $(".report-background", this.$container).height();
                    var contentHeight = tableHeight > backgroundHeight ? tableHeight : backgroundHeight;
                    var topHeight = FR.Browser.isIE8Before() ? parseInt($("#fr-page-content", this.$container).css("top")) : parseInt($(".report-background", this.$container).css("top"));
                    if ($(".HF-header", this.$container).length > 0) {
                        topHeight = parseInt($(".HF-header", this.$container).css("top")) + $(".HF-header", this.$container).height()
                    }
                    var footerTop = contentHeight + topHeight + 1;                     //wikky:+1是为了防止边框遮挡
                    $(".HF-footer", this.$container).css("top", footerTop);
                }
                // IE8 杂项模式 格子设置了边框 如果上方一行tr是隐藏的话 上边框就会变细 貌似border-collapse的问题
                if (FR.Browser.isIE8() && !$.support.boxModel) {
                    var blankTr = $('tr:hidden', this.$contentPane);
                    for (var i = 0; i < blankTr.length; i++) {
                        var nextTr = blankTr.eq(i).next('tr');
                        for (var j = 0; j < nextTr.children().length; j++) {
                            var td = nextTr.children().eq(j);
                            for (var k = 1; k < 4; k++) {
                                if (td.hasClass('btw' + k)) {
                                    td.css('border-top-width', k * 2);
                                }
                            }
                        }
                    }
                }

                // 取消正在加载页面的标记
                this.isLoadingPage = -1;


            }.createDelegate(this)
        });
    },

    _setTotalPageByHtml: function () {
        var html_script = this.$contentPane.html().substring(0, 100);
        var begin = html_script.indexOf("<" + "script>");
        var end = html_script.indexOf("</" + "script>");
        html_script = html_script.substring(begin + 8, end);
        eval(html_script);
    },

    pageSetup: function () {
        // jim: page可以去掉此对话框了
        this.showPageSetupDialog({sessionID: this.currentSessionID});
    },
    printReportServer: function () {
        FR.showIframeDialog({
            title: FR.i18nText("FR-Engine_ReportServerP-Print[Server]"),
            width: 540,
            height: 380,
            url: FR.servletURL + "?op=fr_dialog&cmd=read_print_server_dialog&sessionID=" + this.currentSessionID + "&pn=" + this.currentPageIndex
        });
    },
    emailReport: function () {
        if (this.fireEvent(FR.Events.BEMAIL) === false) {
            return;
        }
        var self = this;
        FR.showEmailDialog({
            sessionID: this.currentSessionID, onFinish: function () {
                self.fireEvent(FR.Events.AEMAIL);
            }
        });
    },
    appletPrint: function () {
        FR.doAppletPrint(this.currentSessionID);
    },
    flashPrint: function () {
        FR.doFlashPrint(this.currentSessionID, this.currentPageIndex);
    },
    exportReportToPDF: function (extype) {
        if (this.fireEvent(FR.Events.BTOPDF) === false) {
            return;
        }
        window.location = FR.servletURL + "?op=export&sessionID=" + this.currentSessionID + "&format=pdf&extype=" + extype;
        FR.progressBar(this.currentSessionID, "pdf");
        this.fireEvent(FR.Events.ATOPDF);
    },
    exportReportToExcel: function (extype) {
        if (this.fireEvent(FR.Events.BTOEXCEL) === false) {
            return;
        }
        // carl:还是弄个提示吧
        if (extype == 'ldpage') {
            FR.Msg.toast(FR.i18nText("FR-Engine_Export-Excel-LargeData-Page-Info"));
        }
        var flag = extype.indexOf("_");
        if (flag != -1) {
            var extypeNew = extype.substring(0, flag);
            window.location = FR.servletURL + "?op=export&sessionID=" + this.currentSessionID + "&format=excel&extype=" + extypeNew + "&isExcel2003=" + true;
        } else {
            window.location = FR.servletURL + "?op=export&sessionID=" + this.currentSessionID + "&format=excel&extype=" + extype;
        }
        FR.progressBar(this.currentSessionID, "excel");
        this.fireEvent(FR.Events.ATOEXCEL);
    },
    exportReportToCSV: function () {
        window.location = FR.servletURL + "?op=export&sessionID=" + this.currentSessionID + "&format=csv";
    },
    exportReportToWord: function () {
        if (this.fireEvent(FR.Events.BTOWORD) === false) {
            return;
        }
        window.location = FR.servletURL + "?op=export&sessionID=" + this.currentSessionID + "&format=word";
        FR.progressBar(this.currentSessionID, "word");
        this.fireEvent(FR.Events.ATOWORD);
    },
    exportReportToImage: function (extype) {
        if (this.fireEvent(FR.Events.BTOIMAGE) === false) {
            return;
        }
        window.location = FR.servletURL + "?op=export&sessionID=" + this.currentSessionID + "&format=image&extype=" + extype;
        this.fireEvent(FR.Events.ATOIMAGE);
    },
    exportReportToHtml: function () {
        if (this.fireEvent(FR.Events.BTOHTML) === false) {
            return;
        }
        window.location = FR.servletURL + "?op=export&sessionID=" + this.currentSessionID + "&format=html";
        this.fireEvent(FR.Events.ATOHTML);
    },
    printPreview: function () {
        window.open(FR.servletURL + "?op=print_preview&cmd=pw_init_page&__pi__=false&sessionID=" + this.currentSessionID, "_blank", "Scrollbar=yes,Resizable=yes,fullscreean=yes");
    },
    SetPrinterOffset: function () {
        FR.showIframeDialog({
            title: FR.i18nText("FR-Engine_SetPrinterOffset"),
            width: 420,
            height: 300,
            url: FR.servletURL + "?op=printer_offset&cmd=pt_open&sessionID=" + this.currentSessionID
        });
    },

    initContentPane: function () {
        FR.PagePane.superclass.initContentPane.apply(this, arguments);
        this.on("afterload", function () {
            this.autoScale();
        });

    },

    loadContentPane: function () {
        this.gotoPage(1);
    },

    _initSheetTabPane: function ($contentPane, sheetsO) {
        //重写_initSheetTabPane, 分页不要sheetPane
        $contentPane.css("overflow", "auto").css('border-top', '0px');
    },
    /**
     * 是否显示分页预览时的边框
     * 这个需要加在页面的加载起始事件中
     * @param {Boolean} isVisible true表示边框可见，否则表示不可见
     */
    setBorderVisible: function (isVisible) {
        this.pagesBorder = isVisible;
    }
});