Copy css for edition

src/components/views/rooms/wysiwyg_composer/EditWysiwygComposer.tsx

@@ -47,6 +47,7 @@ export function EditWysiwygComposer({ editorStateTransfer, ...props }: EditWysiw
     const { editMessage, endEditing, onChange, isSaveDisabled } = useEditing(initialContent, editorStateTransfer);
 
     return isReady && <WysiwygComposer
+        className="mx_EditWysiwygComposer"
         initialContent={initialContent}
         onChange={onChange}
         onSend={editMessage}

src/components/views/rooms/wysiwyg_composer/SendWysiwygComposer.tsx

@@ -39,7 +39,7 @@ const Content = forwardRef<HTMLElement, ContentProps>(
 
 export function SendWysiwygComposer(props: SendWysiwygComposerProps) {
     return (
-        <WysiwygComposer {...props}>{ (ref, wysiwyg) => (
+        <WysiwygComposer className="mx_SendWysiwygComposer" {...props}>{ (ref, wysiwyg) => (
             <Content disabled={props.disabled} ref={ref} formattingFunctions={wysiwyg} />
         ) }
         </WysiwygComposer>);

src/components/views/rooms/wysiwyg_composer/components/WysiwygComposer.tsx

@@ -26,6 +26,7 @@ interface WysiwygComposerProps {
     onChange?: (content: string) => void;
     onSend: () => void;
     initialContent?: string;
+    className?: string;
     children?: (
         ref: MutableRefObject<HTMLDivElement | null>,
         wysiwyg: FormattingFunctions,
@@ -33,7 +34,7 @@ interface WysiwygComposerProps {
 }
 
 export const WysiwygComposer = memo(function WysiwygComposer(
-    { disabled = false, onChange, onSend, initialContent, children }: WysiwygComposerProps,
+    { disabled = false, onChange, onSend, initialContent, className, children }: WysiwygComposerProps,
 ) {
     const inputEventProcessor = useInputEventProcessor(onSend);
 
@@ -47,7 +48,7 @@ export const WysiwygComposer = memo(function WysiwygComposer(
     }, [onChange, content, disabled]);
 
     return (
-        <div className="mx_WysiwygComposer">
+        <div className={className}>
             <FormattingButtons composer={wysiwyg} formattingStates={formattingStates} />
             <Editor ref={ref} disabled={!isWysiwygReady || disabled} />
             { children?.(ref, wysiwyg) }