From 27389dc7d4aacc15a6201621fb793b3e1027f46e Mon Sep 17 00:00:00 2001
From: Daniel Baumann <daniel.baumann@progress-linux.org>
Date: Wed, 4 Oct 2023 14:22:35 +0200
Subject: Adding upstream version 1.7.4.

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
---
 html/src/components/app.tsx                         |  1 +
 html/src/components/terminal/xterm/addons/zmodem.ts | 16 ++++++++++++++++
 html/src/components/terminal/xterm/index.ts         | 19 +++++++++++++++----
 3 files changed, 32 insertions(+), 4 deletions(-)

(limited to 'html/src/components')

diff --git a/html/src/components/app.tsx b/html/src/components/app.tsx
index 71a2d89..1ad5fd3 100644
--- a/html/src/components/app.tsx
+++ b/html/src/components/app.tsx
@@ -15,6 +15,7 @@ const clientOptions = {
     enableZmodem: false,
     enableTrzsz: false,
     enableSixel: false,
+    isWindows: false,
 } as ClientOptions;
 const termOptions = {
     fontSize: 13,
diff --git a/html/src/components/terminal/xterm/addons/zmodem.ts b/html/src/components/terminal/xterm/addons/zmodem.ts
index 3d38c5c..8571f68 100644
--- a/html/src/components/terminal/xterm/addons/zmodem.ts
+++ b/html/src/components/terminal/xterm/addons/zmodem.ts
@@ -7,6 +7,7 @@ import { TrzszFilter } from 'trzsz';
 export interface ZmodeOptions {
     zmodem: boolean;
     trzsz: boolean;
+    windows: boolean;
     onSend: () => void;
     sender: (data: string | Uint8Array) => void;
     writer: (data: string | Uint8Array) => void;
@@ -54,6 +55,11 @@ export class ZmodemAddon implements ITerminalAddon {
         this.terminal.focus();
     }
 
+    private addDisposableListener(target: EventTarget, type: string, listener: EventListener) {
+        target.addEventListener(type, listener);
+        this.disposables.push({ dispose: () => target.removeEventListener(type, listener) });
+    }
+
     @bind
     private trzszInit() {
         const { terminal } = this;
@@ -68,6 +74,16 @@ export class ZmodemAddon implements ITerminalAddon {
             },
             sendToServer: data => sender(data),
             terminalColumns: terminal.cols,
+            isWindowsShell: this.options.windows,
+        });
+        const element = terminal.element as EventTarget;
+        this.addDisposableListener(element, 'dragover', event => event.preventDefault());
+        this.addDisposableListener(element, 'drop', event => {
+            event.preventDefault();
+            this.trzszFilter
+                .uploadFiles((event as DragEvent).dataTransfer?.items as DataTransferItemList)
+                .then(() => console.log('[ttyd] upload success'))
+                .catch(err => console.log('[ttyd] upload failed: ' + err));
         });
         this.disposables.push(terminal.onResize(size => this.trzszFilter.setTerminalColumns(size.cols)));
     }
diff --git a/html/src/components/terminal/xterm/index.ts b/html/src/components/terminal/xterm/index.ts
index e6809e4..06d97ee 100644
--- a/html/src/components/terminal/xterm/index.ts
+++ b/html/src/components/terminal/xterm/index.ts
@@ -44,6 +44,7 @@ export interface ClientOptions {
     enableTrzsz: boolean;
     enableSixel: boolean;
     titleFixed?: string;
+    isWindows: boolean;
 }
 
 export interface FlowControl {
@@ -94,7 +95,10 @@ export class Xterm {
 
     private writeFunc = (data: ArrayBuffer) => this.writeData(new Uint8Array(data));
 
-    constructor(private options: XtermOptions, private sendCb: () => void) {}
+    constructor(
+        private options: XtermOptions,
+        private sendCb: () => void
+    ) {}
 
     dispose() {
         for (const d of this.disposables) {
@@ -199,13 +203,13 @@ export class Xterm {
             terminal.write(data, () => {
                 this.pending = Math.max(this.pending - 1, 0);
                 if (this.pending < lowWater) {
-                    this.socket?.send(textEncoder.encode(Command.PAUSE));
+                    this.socket?.send(textEncoder.encode(Command.RESUME));
                 }
             });
             this.pending++;
             this.written = 0;
             if (this.pending > highWater) {
-                this.socket?.send(textEncoder.encode(Command.RESUME));
+                this.socket?.send(textEncoder.encode(Command.PAUSE));
             }
         } else {
             terminal.write(data);
@@ -218,7 +222,10 @@ export class Xterm {
         if (socket?.readyState !== WebSocket.OPEN) return;
 
         if (typeof data === 'string') {
-            socket.send(textEncoder.encode(Command.INPUT + data));
+            const payload = new Uint8Array(data.length * 3 + 1);
+            payload[0] = Command.INPUT.charCodeAt(0);
+            const stats = textEncoder.encodeInto(data, payload.subarray(1));
+            socket.send(payload.subarray(0, (stats.written as number) + 1));
         } else {
             const payload = new Uint8Array(data.length + 1);
             payload[0] = Command.INPUT.charCodeAt(0);
@@ -320,6 +327,7 @@ export class Xterm {
             this.zmodemAddon = new ZmodemAddon({
                 zmodem: prefs.enableZmodem,
                 trzsz: prefs.enableTrzsz,
+                windows: prefs.isWindows,
                 onSend: this.sendCb,
                 sender: this.sendData,
                 writer: this.writeData,
@@ -370,6 +378,9 @@ export class Xterm {
                     this.titleFixed = value;
                     document.title = value;
                     break;
+                case 'isWindows':
+                    if (value) console.log('[ttyd] is windows');
+                    break;
                 default:
                     console.log(`[ttyd] option: ${key}=${JSON.stringify(value)}`);
                     if (terminal.options[key] instanceof Object) {
-- 
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