fix: clear stdout on ctrl+c (#142)

c4spar · Feb 3, 2021 · 1e15d38 · 1e15d38
1 parent 821f13d
commit 1e15d38
Show file tree

Hide file tree

Showing 4 changed files with 7 additions and 6 deletions.
diff --git a/examples/prompt/os_signals.ts b/examples/prompt/os_signals.ts
@@ -6,7 +6,7 @@ import { Toggle } from "../../prompt/toggle.ts";
 const sig = Deno.signals.interrupt();
 (async () => {
   for await (const _ of sig) {
-    tty.cursorShow();
+    tty.cursorLeft.eraseDown.cursorShow();
     console.log("\nSigint received. Exiting deno process!");
     Deno.exit(1);
   }

diff --git a/prompt/README.md b/prompt/README.md
@@ -298,8 +298,9 @@ By default, cliffy will call `Deno.exit(0)` after the user presses `ctrl+c`. If
 you need to use a custom signal handler, you can enable the `cbreak` option on
 your prompt. This will enable pass-through of os signals to deno, allowing you
 to register your own signal handler. Currently, when using prompts like `Select`
-or `Toggle` and `cbreak` mode is enabled, you must manually show the cursor
-before calling `Deno.exit()`. Maybe this will be improved somehow in the future.
+or `Toggle` and `cbreak` mode is enabled, you have to show the cursor and clear
+the stdout before calling `Deno.exit()` manually. Maybe this will be improved
+somehow in the future.
 
 ```typescript
 import { tty } from "https://deno.land/x/cliffy/ansi/tty.ts";
@@ -308,7 +309,7 @@ import { Toggle } from "https://deno.land/x/cliffy/prompt/toggle.ts";
 const sig = Deno.signals.interrupt();
 (async () => {
   for await (const _ of sig) {
-    tty.cursorShow();
+    tty.cursorLeft.eraseDown.cursorShow();
     console.log("\nSigint received. Exiting deno process!");
     Deno.exit(1);
   }

diff --git a/prompt/_generic_input.ts b/prompt/_generic_input.ts
@@ -90,7 +90,7 @@ export abstract class GenericInput<
   protected async handleEvent(event: KeyEvent): Promise<void> {
     switch (true) {
       case event.name === "c" && event.ctrl:
-        this.tty.cursorShow();
+        this.tty.cursorLeft.eraseDown.cursorShow();
         Deno.exit(0);
         return;
       case this.isKey(this.settings.keys, "moveCursorLeft", event):

diff --git a/prompt/_generic_prompt.ts b/prompt/_generic_prompt.ts
@@ -227,7 +227,7 @@ export abstract class GenericPrompt<
   protected async handleEvent(event: KeyEvent): Promise<void> {
     switch (true) {
       case event.name === "c" && event.ctrl:
-        this.tty.cursorShow();
+        this.tty.cursorLeft.eraseDown.cursorShow();
         Deno.exit(0);
         return;
       case this.isKey(this.settings.keys, "submit", event):