Session 1.16.5

package.json

@@ -2,7 +2,7 @@
   "name": "session-desktop",
   "productName": "Session",
   "description": "Private messaging from your desktop",
-  "version": "1.16.4",
+  "version": "1.16.5",
   "license": "GPL-3.0",
   "author": {
     "name": "Session Foundation",

ts/components/conversation/composition/CompositionInput.tsx

@@ -273,6 +273,12 @@ export type ContentEditableProps = Omit<React.HTMLAttributes<HTMLDivElement>, 'o
     /** If true, disables editing (e.g., remove contentEditable or make read-only). */
     disabled?: boolean;
     innerRef?: React.Ref<HTMLDivElement>;
+    /** Called when IME composition starts */
+    onCompositionStart?: (e: React.CompositionEvent<HTMLDivElement>) => void;
+    /** Called when IME composition updates */
+    onCompositionUpdate?: (e: React.CompositionEvent<HTMLDivElement>) => void;
+    /** Called when IME composition ends */
+    onCompositionEnd?: (e: React.CompositionEvent<HTMLDivElement>) => void;
   };
 
 const UnstyledCompositionInput = forwardRef<CompositionInputRef, ContentEditableProps>(
@@ -287,6 +293,9 @@ const UnstyledCompositionInput = forwardRef<CompositionInputRef, ContentEditable
       onKeyUp,
       onKeyDown,
       onClick,
+      onCompositionStart,
+      onCompositionUpdate,
+      onCompositionEnd,
       children,
       ...rest
     } = props;
@@ -297,6 +306,11 @@ const UnstyledCompositionInput = forwardRef<CompositionInputRef, ContentEditable
     const lastPosition = useRef<number | null>(null);
     const lastHtmlIndex = useRef<number>(0);
 
+    // IME composition state
+    const isComposing = useRef(false);
+    const compositionStartIndex = useRef<number>(0);
+    const compositionData = useRef<string>('');
+
     useDebouncedSpellcheck({
       elementRef: elRef,
     });
@@ -447,6 +461,11 @@ const UnstyledCompositionInput = forwardRef<CompositionInputRef, ContentEditable
           return;
         }
 
+        // Don't update selection during IME composition
+        if (isComposing.current) {
+          return;
+        }
+
         lastPosition.current = getHtmlIndexFromSelection(el);
         lastHtmlIndex.current = lastPosition.current;
       };
@@ -652,6 +671,11 @@ const UnstyledCompositionInput = forwardRef<CompositionInputRef, ContentEditable
 
     const onInput = useCallback(
       (e: Omit<ContentEditableEvent, 'target'>) => {
+        // Skip input handling during IME composition
+        if (isComposing.current) {
+          return;
+        }
+
         const hasChanged = handleChange();
         if (hasChanged) {
           emitChangeEvent(e);
@@ -769,6 +793,45 @@ const UnstyledCompositionInput = forwardRef<CompositionInputRef, ContentEditable
       [createSyntheticEvent, handleHistory]
     );
 
+    // IME Composition Event Handlers
+    const handleCompositionStart = useCallback(
+      (e: React.CompositionEvent<HTMLDivElement>) => {
+        isComposing.current = true;
+        compositionStartIndex.current = lastHtmlIndex.current;
+        compositionData.current = '';
+
+        onCompositionStart?.(e);
+      },
+      [onCompositionStart]
+    );
+
+    const handleCompositionUpdate = useCallback(
+      (e: React.CompositionEvent<HTMLDivElement>) => {
+        if (isComposing.current) {
+          compositionData.current = e.data;
+        }
+
+        onCompositionUpdate?.(e);
+      },
+      [onCompositionUpdate]
+    );
+
+    const handleCompositionEnd = useCallback(
+      (e: React.CompositionEvent<HTMLDivElement>) => {
+        isComposing.current = false;
+
+        // Process the final composition result
+        const hasChanged = handleChange();
+        if (hasChanged) {
+          emitChangeEvent(e as any);
+        }
+
+        compositionData.current = '';
+        onCompositionEnd?.(e);
+      },
+      [handleChange, emitChangeEvent, onCompositionEnd]
+    );
+
     useEffect(() => {
       const el = elRef.current;
       if (!el) {
@@ -802,7 +865,8 @@ const UnstyledCompositionInput = forwardRef<CompositionInputRef, ContentEditable
         el.innerHTML = normalizedHtml;
         lastHtml.current = normalizedHtml;
         isMount.current = false;
-      } else if (normalizedHtml !== normalizedCurrentHtml) {
+      } else if (normalizedHtml !== normalizedCurrentHtml && !isComposing.current) {
+        // Don't update DOM during IME composition
         el.innerHTML = normalizedHtml;
         lastHtml.current = normalizedHtml;
         handleChange();
@@ -828,6 +892,9 @@ const UnstyledCompositionInput = forwardRef<CompositionInputRef, ContentEditable
         onKeyDown={_onKeyDown}
         onCopy={onCopy}
         onClick={_onClick}
+        onCompositionStart={handleCompositionStart}
+        onCompositionUpdate={handleCompositionUpdate}
+        onCompositionEnd={handleCompositionEnd}
       >
         {children}
       </div>

ts/hooks/useDebuncedSpellcheck.ts

@@ -6,14 +6,72 @@ interface DebouncedSpellcheckProps {
   delay?: number;
 }
 
-export const useDebouncedSpellcheck = ({ delay = 300, elementRef }: DebouncedSpellcheckProps) => {
-  const enableSpellcheck = useCallback(() => {
-    elementRef.current?.setAttribute('spellcheck', 'true');
+// Global reference counter for the hook
+let hookUsageCount = 0;
+const STYLE_ID = 'debounced-spellcheck-styles';
+
+const cssStyles = `
+  .spellcheck-hidden::-webkit-spelling-error {
+    text-decoration: none !important;
+  }
+
+  .spellcheck-hidden::-webkit-grammar-error {
+    text-decoration: none !important;
+  }
+
+  .spellcheck-hidden::-moz-spelling-error {
+    text-decoration: none !important;
+  }
+
+  .spellcheck-hidden::-moz-grammar-error {
+    text-decoration: none !important;
+  }
+
+  .spellcheck-hidden::spelling-error {
+    text-decoration: none !important;
+  }
+
+  .spellcheck-hidden::grammar-error {
+    text-decoration: none !important;
+  }
+`;
+
+export const useDebouncedSpellcheck = ({ delay = 600, elementRef }: DebouncedSpellcheckProps) => {
+  // Inject CSS styles if they don't exist
+  useEffect(() => {
+    hookUsageCount++;
+
+    // Only inject styles on first usage
+    if (hookUsageCount === 1 && !document.getElementById(STYLE_ID)) {
+      const style = document.createElement('style');
+      style.id = STYLE_ID;
+      style.textContent = cssStyles;
+      document.head.appendChild(style);
+    }
+
+    // Remove styles only when no components are using the hook
+    return () => {
+      hookUsageCount--;
+      if (hookUsageCount === 0) {
+        const existingStyle = document.getElementById(STYLE_ID);
+        if (existingStyle) {
+          existingStyle.remove();
+        }
+      }
+    };
+  }, []);
+
+  const hideSpellcheckLines = useCallback(() => {
+    elementRef.current?.classList.add('spellcheck-hidden');
+  }, [elementRef]);
+
+  const showSpellcheckLines = useCallback(() => {
+    elementRef.current?.classList.remove('spellcheck-hidden');
   }, [elementRef]);
 
   // eslint-disable-next-line react-hooks/exhaustive-deps -- TODO: see if we can create our own useDebounce hook
-  const debouncedSpellcheck = useCallback(debounce(enableSpellcheck, delay), [
-    enableSpellcheck,
+  const debouncedShowSpellcheck = useCallback(debounce(showSpellcheckLines, delay), [
+    showSpellcheckLines,
     delay,
   ]);
 
@@ -24,15 +82,24 @@ export const useDebouncedSpellcheck = ({ delay = 300, elementRef }: DebouncedSpe
     }
 
     const handleInput = () => {
-      el.setAttribute('spellcheck', 'false');
-      debouncedSpellcheck();
+      // Hide spellcheck lines immediately while typing
+      hideSpellcheckLines();
+      // Show them again after user stops typing
+      debouncedShowSpellcheck();
     };
 
     el.addEventListener('input', handleInput);
 
     // eslint-disable-next-line consistent-return -- This return is the destructor
     return () => {
       el.removeEventListener('input', handleInput);
+      // Clean up: show spellcheck lines when component unmounts
+      showSpellcheckLines();
     };
-  }, [debouncedSpellcheck, elementRef]);
+  }, [debouncedShowSpellcheck, hideSpellcheckLines, showSpellcheckLines, elementRef]);
+
+  return {
+    hideSpellcheckLines,
+    showSpellcheckLines,
+  };
 };