feat: not allow non ascii character in macro action text (#645)

packages/uhk-web/src/app/components/macro/action-editor/tab/text/macro-text.component.html

@@ -1,5 +1,10 @@
 <div>
     <h4>Type text</h4>
-    <textarea #macroTextInput name="macro-text" (change)="onTextChange()"
-    (keyup)="validate()" class="macro__text-input">{{ macroAction?.text }}</textarea>
+    <textarea #macroTextInput
+              name="macro-text"
+              (keydown)="onKeydown($event)"
+              (change)="onTextChange()"
+              (keyup)="validate()"
+              (paste)="onPaste($event)"
+              class="macro__text-input">{{ macroAction?.text }}</textarea>
 </div>

packages/uhk-web/src/app/components/macro/action-editor/tab/text/macro-text.component.ts

@@ -11,6 +11,8 @@ import { TextMacroAction } from 'uhk-common';
 
 import { MacroBaseComponent } from '../macro-base.component';
 
+const NON_ASCII_REGEXP = /[^\x00-\x7F]/g;
+
 @Component({
     selector: 'macro-text-tab',
     templateUrl: './macro-text.component.html',
@@ -36,6 +38,41 @@ export class MacroTextTabComponent extends MacroBaseComponent implements OnInit,
         this.macroAction.text = this.input.nativeElement.value;
     }
 
+    /**
+     * Not allow non ascii character
+     * @param $event
+     */
+    onKeydown($event: KeyboardEvent): void {
+        if (new RegExp(NON_ASCII_REGEXP).test($event.key)) {
+            $event.preventDefault();
+            $event.stopPropagation();
+        }
+    }
+
+    /**
+     * Remove non ascii character from clipboard data
+     * @param $event
+     */
+    onPaste($event: ClipboardEvent): void {
+        $event.preventDefault();
+
+        const textarea: HTMLTextAreaElement = this.input.nativeElement;
+        const data = $event.clipboardData.getData('text/plain');
+        const text = data && data.replace(NON_ASCII_REGEXP, '') || '';
+        if (text.length === 0) {
+            return;
+        }
+
+        const value = textarea.value || '';
+        const prefix = value.substr(0, textarea.selectionStart);
+        const end = textarea.selectionEnd;
+        const suffix = value.substr(textarea.selectionEnd);
+        textarea.value = prefix + text + suffix;
+        const correction = end === 0 ? 0 : 1;
+        textarea.selectionStart = textarea.selectionEnd = end + text.length - correction;
+        this.macroAction.text = textarea.value;
+    }
+
     isMacroValid = () => !!this.input.nativeElement.value;
 
     private init = () => {