Merge pull request #11 from NativePHP/printer-support

Add printer API endpoints

Author: mpociot

dist/server/api/system.js

@@ -31,4 +31,26 @@ router.post('/prompt-touch-id', (req, res) => __awaiter(void 0, void 0, void 0,
         });
     }
 }));
+router.get('/printers', (req, res) => __awaiter(void 0, void 0, void 0, function* () {
+    const printers = yield electron_1.BrowserWindow.getAllWindows()[0].webContents.getPrintersAsync();
+    res.json({
+        printers,
+    });
+}));
+router.post('/print', (req, res) => __awaiter(void 0, void 0, void 0, function* () {
+    const { printer, html } = req.body;
+    let printWindow = new electron_1.BrowserWindow({
+        show: false,
+    });
+    printWindow.webContents.on('did-finish-load', () => {
+        printWindow.webContents.print({
+            silent: true,
+            deviceName: printer,
+        }, (success, errorType) => {
+            res.sendStatus(200);
+        });
+        printWindow = null;
+    });
+    yield printWindow.loadURL(`data:text/html;charset=UTF-8,${html}`);
+}));
 exports.default = router;

src/server/api/system.ts

@@ -1,5 +1,5 @@
 import express from 'express'
-import {systemPreferences} from 'electron'
+import {BrowserWindow, systemPreferences} from 'electron'
 const router = express.Router();
 
 router.get('/can-prompt-touch-id', (req, res) => {
@@ -19,5 +19,32 @@ router.post('/prompt-touch-id', async (req, res) => {
         })
     }
 });
+router.get('/printers', async (req, res) => {
+  const printers = await BrowserWindow.getAllWindows()[0].webContents.getPrintersAsync();
+
+  res.json({
+    printers,
+  });
+});
+
+router.post('/print', async (req, res) => {
+  const {printer, html} = req.body;
+
+  let printWindow = new BrowserWindow({
+    show: false,
+  });
+
+  printWindow.webContents.on('did-finish-load', () => {
+    printWindow.webContents.print({
+      silent: true,
+      deviceName: printer,
+    }, (success, errorType) => {
+      res.sendStatus(200);
+    });
+    printWindow = null;
+  });
+
+  await printWindow.loadURL(`data:text/html;charset=UTF-8,${html}`);
+});
 
 export default router;