add 添加 getPaperSizeInfo api

README.md

@@ -242,6 +242,44 @@ socket.emit("refreshPrinterList");
 // https://github.com/Xavier9896/node-hiprint-transit/blob/main/index.js#L139
 ```
 
+## 获取打印机纸张信息
+
+### 连接为 `electron-hiprint`
+
+依赖 [win32-pdf-printer](https://www.npmjs.com/package/win32-pdf-printer) 包实现，暂时只支持 window 环境中使用！
+
+> ❗️ node-hiprint-transit 中转暂未添加支持
+
+```js
+// printerName: 打印机名称 可选值，缺省时返回所有打印机的纸张信息
+if (globalThis.connect) {
+  socket.emit("getPaperSizeInfo", printerName);
+} else {
+  alert("未连接客户端！")
+  window.open("hiprint://")
+}
+```
+
+```js
+[
+    {
+        "PrinterName": "Microsoft Print to PDF",
+        "TaskNumber": 0, // 打印队列任务数
+        "Status": 0, // 打印机状态码
+        "StatusMsg": "准备就绪（Ready）", // 打印机状态信息
+        "PaperSizes": [
+            {
+                "Height": 1100,
+                "Kind": 1,
+                "PaperName": "信纸",
+                "RawKind": 1,
+                "Width": 850
+            },
+            {...}, {...}, {...}
+        ]
+    }
+]
+```
 ## 打印 HTML
 
 ### 连接为 `electron-hiprint`

package.json

@@ -99,7 +99,8 @@
     "pdf-to-printer": "^5.6.0",
     "socket.io": "^3.1.0",
     "socket.io-client": "^3.1.0",
-    "unix-print": "^1.2.0"
+    "unix-print": "^1.2.0",
+    "win32-pdf-printer": "^4.0.1"
   },
   "devDependencies": {
     "electron": "^15.0.0",

tools/utils.js

@@ -2,6 +2,7 @@ const address = require("address");
 const ipp = require("ipp");
 const { machineIdSync } = require("node-machine-id");
 const Store = require("electron-store");
+const { getPaperSizeInfo, getPaperSizeInfoAll } = require("win32-pdf-printer");
 const log = require("./log");
 
 Store.initRenderer();
@@ -176,7 +177,7 @@ function initServeEvent(server) {
      * @description: client 请求客户端信息
      */
     socket.on("getClientInfo", () => {
-      log(`插件端 ${socket.id} getClientInfo`);
+      log(`插件端 ${socket.id}: getClientInfo`);
       emitClientInfo(socket);
     });
 
@@ -216,6 +217,18 @@ function initServeEvent(server) {
       socket.emit("printerList", MAIN_WINDOW.webContents.getPrinters());
     });
 
+    /**
+     * @description: client 获取打印机纸张信息
+     */
+    socket.on("getPaperSizeInfo", (printer) => {
+      log(`插件端 ${socket.id}: getPaperSizeInfo`);
+      if (process.platform === "win32") {
+        let fun = printer ? getPaperSizeInfo : getPaperSizeInfoAll;
+        let paper = fun();
+        paper && socket.emit("paperSizeInfo", paper);
+      }
+    });
+
     /**
      * @description: client 调用 ipp 打印 详见：https://www.npmjs.com/package/ipp
      */