feat: 导入导出功能

package-lock.json

@@ -1344,6 +1344,10 @@
 				"opencollective-postinstall": "^2.0.2"
 			}
 		},
+		"xlsx": {
+			"version": "https://cdn.sheetjs.com/xlsx-0.20.0/xlsx-0.20.0.tgz",
+			"integrity": "sha512-adg5edVTkXXGTnb0iWrc3Z47ViGgwmD47yx6VfSCZhfdKPtHcElYGs48OtcO4nwOu90Pjz5mmyl0HLcvbSRYTQ=="
+		},
 		"yallist": {
 			"version": "4.0.0",
 			"resolved": "https://registry.npmjs.org/yallist/-/yallist-4.0.0.tgz",

package.json

@@ -24,6 +24,7 @@
 		"typescript": "4.7.4"
 	},
 	"dependencies": {
-		"x-data-spreadsheet": "^1.1.9"
+		"x-data-spreadsheet": "^1.1.9",
+		"xlsx": "https://cdn.sheetjs.com/xlsx-0.20.0/xlsx-0.20.0.tgz"
 	}
 }

src/ExcelView.ts

@@ -1,14 +1,17 @@
 import ExcelPlugin from "main";
 import { TextFileView, WorkspaceLeaf } from "obsidian";
 import Spreadsheet from "x-data-spreadsheet";
+import * as XLSX from "xlsx";
+import { stox, xtos } from "./utils/xlsxspread";
 
 export const VIEW_TYPE_EXCEL = "excel-view";
 
 export class ExcelView extends TextFileView {
 	public plugin: ExcelPlugin;
 	public ownerWindow: Window;
-	public ownerDocument: Document;
 	public sheet: any;
+	public importEle: HTMLElement;
+	public exportEle: HTMLElement;
 
 	constructor(leaf: WorkspaceLeaf, plugin: ExcelPlugin) {
 		super(leaf);
@@ -46,6 +49,71 @@ export class ExcelView extends TextFileView {
 			});
 
 		this.sheet.validate();
+
+		// 导入导出
+		const importInput = this.contentEl.createEl("input", {
+			cls: "import-excel",
+			type: "file",
+			attr: { id: "import" },
+		});
+		importInput.addEventListener(
+			"change",
+			this.handleFile.bind(this),
+			false
+		);
+
+		// 添加顶部导入按钮
+		if (!this.importEle) {
+			this.importEle = this.addAction(
+				"download",
+				"import xlsx file",
+				(ev) => this.handleImportClick(ev)
+			);
+		}
+
+		if (!this.exportEle) {
+			this.exportEle = this.addAction(
+				"upload",
+				"export xlsx file",
+				(ev) => this.handleExportClick(ev)
+			);
+		}
+	}
+
+	// 处理顶部导入按钮点击事件
+	handleImportClick(ev: MouseEvent) {
+		const importEle = document.getElementById("import");
+		importEle?.click();
+		// 打开文件
+		console.log("handleImportClick", importEle);
+	}
+
+	handleFile(e: Event) {
+		console.log("handleFile", e);
+		//@ts-ignore
+		const files = e.target?.files;
+		var f = files[0];
+		var reader = new FileReader();
+		var instance = this;
+		reader.onload = (e) => {
+			const data = e.target?.result;
+			console.log(data, instance);
+
+			instance.process_wb(XLSX.read(data));
+		};
+		reader.readAsArrayBuffer(f);
+	}
+
+	process_wb(wb: XLSX.WorkBook) {
+		const sheetData = stox(wb);
+		this.sheet.loadData(sheetData);
+	}
+
+	handleExportClick(ev: MouseEvent) {
+		var new_wb = xtos(this.sheet.getData()) as XLSX.WorkBook;
+		var title = this.file?.basename ?? "sheet"
+  		/* write file and trigger a download */
+  		XLSX.writeFile(new_wb, title + '.xlsx', {});
 	}
 
 	onload(): void {

src/utils/xlsxspread.js

@@ -0,0 +1,133 @@
+/*! xlsxspread.js (C) SheetJS LLC -- https://sheetjs.com/ */
+/* eslint-env browser */
+/*global XLSX */
+/*exported stox, xtos */
+import * as XLSX from 'xlsx'
+
+/**
+ * Converts data from SheetJS to x-spreadsheet
+ *
+ * @param  {Object} wb SheetJS workbook object
+ *
+ * @returns {Object[]} An x-spreadsheet data
+ */
+export function stox(wb) {
+  var out = [];
+  wb.SheetNames.forEach(function (name) {
+    var o = { name: name, rows: {} };
+    var ws = wb.Sheets[name];
+    if(!ws || !ws["!ref"]) return;
+    var range = XLSX.utils.decode_range(ws['!ref']);
+    // sheet_to_json will lost empty row and col at begin as default
+    range.s = { r: 0, c: 0 };
+    var aoa = XLSX.utils.sheet_to_json(ws, {
+      raw: false,
+      header: 1,
+      range: range
+    });
+
+    aoa.forEach(function (r, i) {
+      var cells = {};
+      r.forEach(function (c, j) {
+        cells[j] = { text: c };
+
+        var cellRef = XLSX.utils.encode_cell({ r: i, c: j });
+
+        if ( ws[cellRef] != null && ws[cellRef].f != null) {
+          cells[j].text = "=" + ws[cellRef].f;
+        }
+      });
+      o.rows[i] = { cells: cells };
+    });
+
+    o.merges = [];
+    (ws["!merges"]||[]).forEach(function (merge, i) {
+      //Needed to support merged cells with empty content
+      if (o.rows[merge.s.r] == null) {
+        o.rows[merge.s.r] = { cells: {} };
+      }
+      if (o.rows[merge.s.r].cells[merge.s.c] == null) {
+        o.rows[merge.s.r].cells[merge.s.c] = {};
+      }
+
+      o.rows[merge.s.r].cells[merge.s.c].merge = [
+        merge.e.r - merge.s.r,
+        merge.e.c - merge.s.c
+      ];
+
+      o.merges[i] = XLSX.utils.encode_range(merge);
+    });
+
+    out.push(o);
+  });
+
+  return out;
+}
+
+/**
+ * Converts data from x-spreadsheet to SheetJS
+ *
+ * @param  {Object[]} sdata An x-spreadsheet data object
+ *
+ * @returns {Object} A SheetJS workbook object
+ */
+export function xtos(sdata) {
+  var out = XLSX.utils.book_new();
+  sdata.forEach(function (xws) {
+    var ws = {};
+    var rowobj = xws.rows;
+    var minCoord = { r: 0, c: 0 }, maxCoord = { r: 0, c: 0 };
+    for (var ri = 0; ri < rowobj.len; ++ri) {
+      var row = rowobj[ri];
+      if (!row) continue;
+
+      Object.keys(row.cells).forEach(function (k) {
+        var idx = +k;
+        if (isNaN(idx)) return;
+
+        var lastRef = XLSX.utils.encode_cell({ r: ri, c: idx });
+        if (ri > maxCoord.r) maxCoord.r = ri;
+        if (idx > maxCoord.c) maxCoord.c = idx;
+
+        var cellText = row.cells[k].text, type = "s";
+        if (!cellText) {
+          cellText = "";
+          type = "z";
+        } else if (!isNaN(Number(cellText))) {
+          cellText = Number(cellText);
+          type = "n";
+        } else if (cellText.toLowerCase() === "true" || cellText.toLowerCase() === "false") {
+          cellText = Boolean(cellText);
+          type = "b";
+        }
+
+        ws[lastRef] = { v: cellText, t: type };
+
+        if (type == "s" && cellText[0] == "=") {
+          ws[lastRef].f = cellText.slice(1);
+        }
+
+        if (row.cells[k].merge != null) {
+          if (ws["!merges"] == null) ws["!merges"] = [];
+
+          ws["!merges"].push({
+            s: { r: ri, c: idx },
+            e: {
+              r: ri + row.cells[k].merge[0],
+              c: idx + row.cells[k].merge[1]
+            }
+          });
+        }
+      });
+    }
+    ws["!ref"] = minCoord ? XLSX.utils.encode_range({
+      s: minCoord,
+      e: maxCoord
+    }) : "A1";
+
+    XLSX.utils.book_append_sheet(out, ws, xws.name);
+  });
+
+  return out;
+}
+

styles.css

@@ -1,13 +1,18 @@
 .sheet-box {
-	/* position: absolute;
-    left: 0;
-    top: 40px; */
 	width: 100%;
 	height: 100%;
 	margin: -16px;
 	padding: 0;
 }
 
+.import-excel {
+	position: absolute;
+	right: 0;
+	bottom: 0;
+	z-index: 100;
+	opacity: 0;
+}
+
 /* node_modules/x-data-spreadsheet/src/index.less */
 body {
 	margin: 0;