diff --git a/resources/qiye.html b/resources/qiye.html
index 164c786..a992c15 100644
--- a/resources/qiye.html
+++ b/resources/qiye.html
@@ -2213,102 +2213,122 @@
requestAnimationFrame(function () {
requestAnimationFrame(function () {
try {
- html2canvas(pageEl, {
- scale: 1.5,
- useCORS: true,
- allowTaint: false,
- backgroundColor: "#ffffff",
- scrollX: 0,
- scrollY: 0,
- windowWidth: pageEl.scrollWidth,
- windowHeight: pageEl.scrollHeight,
- onclone: function (clonedDoc, node) {
- var body = clonedDoc.body;
- if (body) {
- body.style.backgroundColor = "#ffffff";
- body.style.overflow = "visible";
- }
- var clonePage = clonedDoc.querySelector(".page");
- if (clonePage) {
- clonePage.style.overflow = "visible";
- clonePage.style.backgroundColor = "#ffffff";
- }
- },
- })
- .then(function (canvas) {
- if (!canvas.width || !canvas.height) {
- console.error("截图为空，宽或高为 0");
+ (function () {
+ var scale = 1.25;
+ var pdf = new jspdf.jsPDF("p", "mm", "a4");
+ var pageWidthMm = pdf.internal.pageSize.getWidth();
+ var pageHeightMm = pdf.internal.pageSize.getHeight();
+
+ // 以元素宽度为基准，计算每一页对应的像素高度（避免生成超长大图导致 jsPDF 白页）
+ var targetWidthPx = Math.max(
+ 1,
+ Math.floor(pageEl.scrollWidth),
+ );
+ var pageHeightPx = Math.max(
+ 1,
+ Math.floor((targetWidthPx * pageHeightMm) / pageWidthMm),
+ );
+ var totalHeightPx = Math.max(
+ 1,
+ Math.floor(pageEl.scrollHeight),
+ );
+
+ var offsetY = 0;
+ var pageIndex = 0;
+
+ function renderSlice() {
+ var sliceHeight = Math.min(
+ pageHeightPx,
+ totalHeightPx - offsetY,
+ );
+ if (sliceHeight <= 0) {
+ // 结束，保存
+ var fileName = "企业全景报告.pdf";
+ if (
+ reportData &&
+ reportData.entName &&
+ typeof reportData.entName === "string"
+ ) {
+ fileName =
+ reportData.entName +
+ "_企业全景报告.pdf";
+ }
+ pdf.save(fileName);
restoreBtn();
return;
}
- // 调试：确认截图是否全白/是否有内容
- try {
- var ctx2d = canvas.getContext("2d");
- if (ctx2d) {
- var p = ctx2d.getImageData(0, 0, 1, 1).data;
- console.info(
- "PDF截图信息",
- {
- w: canvas.width,
- h: canvas.height,
- firstPixel: Array.prototype.slice.call(p),
- },
+
+ html2canvas(pageEl, {
+ scale: scale,
+ useCORS: true,
+ allowTaint: false,
+ backgroundColor: "#ffffff",
+ x: 0,
+ y: offsetY,
+ width: targetWidthPx,
+ height: sliceHeight,
+ scrollX: 0,
+ scrollY: 0,
+ windowWidth: targetWidthPx,
+ windowHeight: sliceHeight,
+ onclone: function (clonedDoc) {
+ var body = clonedDoc.body;
+ if (body) {
+ body.style.backgroundColor = "#ffffff";
+ body.style.overflow = "visible";
+ }
+ var clonePage = clonedDoc.querySelector(".page");
+ if (clonePage) {
+ clonePage.style.overflow = "visible";
+ clonePage.style.backgroundColor = "#ffffff";
+ }
+ },
+ })
+ .then(function (canvas) {
+ if (!canvas.width || !canvas.height) {
+ console.error("分片截图为空，宽或高为 0", {
+ offsetY: offsetY,
+ sliceHeight: sliceHeight,
+ });
+ restoreBtn();
+ return;
+ }
+ // 调试：输出每页分片信息
+ console.info("PDF分片截图信息", {
+ page: pageIndex + 1,
+ w: canvas.width,
+ h: canvas.height,
+ offsetY: offsetY,
+ sliceHeight: sliceHeight,
+ totalHeightPx: totalHeightPx,
+ });
+
+ var imgData = canvas.toDataURL("image/jpeg", 0.9);
+
+ if (pageIndex > 0) pdf.addPage();
+ pdf.addImage(
+ imgData,
+ "JPEG",
+ 0,
+ 0,
+ pageWidthMm,
+ pageHeightMm,
);
- }
- } catch (e) {
- console.warn("读取截图像素失败（可能被跨域资源污染）", e);
- }
- var imgData = canvas.toDataURL(
- "image/jpeg",
- 0.95,
- );
- var pdf = new jspdf.jsPDF("p", "mm", "a4");
- var pageWidth = pdf.internal.pageSize.getWidth();
- var pageHeight = pdf.internal.pageSize.getHeight();
- var imgWidth = pageWidth;
- var imgHeight =
- (canvas.height * imgWidth) / canvas.width;
- var position = 0;
- var heightLeft = imgHeight;
- pdf.addImage(
- imgData,
- "JPEG",
- 0,
- position,
- imgWidth,
- imgHeight,
- );
- heightLeft -= pageHeight;
- while (heightLeft > 0) {
- position = heightLeft - imgHeight;
- pdf.addPage();
- pdf.addImage(
- imgData,
- "JPEG",
- 0,
- position,
- imgWidth,
- imgHeight,
- );
- heightLeft -= pageHeight;
- }
- var fileName = "企业全景报告.pdf";
- if (
- reportData &&
- reportData.entName &&
- typeof reportData.entName === "string"
- ) {
- fileName =
- reportData.entName +
- "_企业全景报告.pdf";
- }
- pdf.save(fileName);
- restoreBtn();
- })
- .catch(function (e) {
- console.error("生成 PDF 失败", e);
- restoreBtn();
- });
+
+ pageIndex += 1;
+ offsetY += sliceHeight;
+
+ // 给 UI 一点喘息，避免长任务卡死
+ setTimeout(renderSlice, 0);
+ })
+ .catch(function (e) {
+ console.error("生成 PDF 失败（分片截图阶段）", e);
+ restoreBtn();
+ });
+ }
+
+ renderSlice();
+ })();
} catch (e) {
console.error("触发生成 PDF 失败", e);
restoreBtn();