[PE-239] chore: add strictNullCheck flag to the editor package (#6439)

* chore: add strictNullCheck flag

* fix: types and errors

* chore: update error handling

packages/editor/src/core/components/editors/document/collaborative-editor.tsx

@@ -1,3 +1,4 @@
+import { Extensions } from "@tiptap/core";
 import React from "react";
 // components
 import { DocumentContentLoader, PageRenderer } from "@/components/editors";
@@ -35,7 +36,7 @@ const CollaborativeDocumentEditor = (props: ICollaborativeDocumentEditor) => {
     user,
   } = props;
 
-  const extensions = [];
+  const extensions: Extensions = [];
   if (embedHandler?.issue) {
     extensions.push(
       IssueWidget({

packages/editor/src/core/components/editors/document/read-only-editor.tsx

@@ -1,3 +1,4 @@
+import { Extensions } from "@tiptap/core";
 import { forwardRef, MutableRefObject } from "react";
 // components
 import { PageRenderer } from "@/components/editors";
@@ -41,7 +42,7 @@ const DocumentReadOnlyEditor = (props: IDocumentReadOnlyEditor) => {
     initialValue,
     mentionHandler,
   } = props;
-  const extensions = [];
+  const extensions: Extensions = [];
   if (embedHandler?.issue) {
     extensions.push(
       IssueWidget({

packages/editor/src/core/components/menus/ai-menu.tsx

@@ -23,6 +23,7 @@ export const AIFeaturesMenu: React.FC<Props> = (props) => {
     menuRef.current.remove();
     menuRef.current.style.visibility = "visible";
 
+    // @ts-expect-error - Tippy types are incorrect
     popup.current = tippy(document.body, {
       getReferenceClientRect: null,
       content: menuRef.current,

packages/editor/src/core/components/menus/block-menu.tsx

@@ -34,6 +34,7 @@ export const BlockMenu = (props: BlockMenuProps) => {
       menuRef.current.remove();
       menuRef.current.style.visibility = "visible";
 
+      // @ts-expect-error - Tippy types are incorrect
       popup.current = tippy(document.body, {
         getReferenceClientRect: null,
         content: menuRef.current,

packages/editor/src/core/components/menus/menu-items.ts

@@ -218,24 +218,33 @@ export const HorizontalRuleItem = (editor: Editor) =>
 export const TextColorItem = (editor: Editor): EditorMenuItem<"text-color"> => ({
   key: "text-color",
   name: "Color",
-  isActive: ({ color }) => editor.isActive("customColor", { color }),
-  command: ({ color }) => toggleTextColor(color, editor),
+  isActive: (props) => editor.isActive("customColor", { color: props?.color }),
+  command: (props) => {
+    if (!props) return;
+    toggleTextColor(props.color, editor);
+  },
   icon: Palette,
 });
 
 export const BackgroundColorItem = (editor: Editor): EditorMenuItem<"background-color"> => ({
   key: "background-color",
   name: "Background color",
-  isActive: ({ color }) => editor.isActive("customColor", { backgroundColor: color }),
-  command: ({ color }) => toggleBackgroundColor(color, editor),
+  isActive: (props) => editor.isActive("customColor", { backgroundColor: props?.color }),
+  command: (props) => {
+    if (!props) return;
+    toggleBackgroundColor(props.color, editor);
+  },
   icon: Palette,
 });
 
 export const TextAlignItem = (editor: Editor): EditorMenuItem<"text-align"> => ({
   key: "text-align",
   name: "Text align",
-  isActive: ({ alignment }) => editor.isActive({ textAlign: alignment }),
-  command: ({ alignment }) => setTextAlign(alignment, editor),
+  isActive: (props) => editor.isActive({ textAlign: props?.alignment }),
+  command: (props) => {
+    if (!props) return;
+    setTextAlign(props.alignment, editor);
+  },
   icon: AlignCenter,
 });
 

packages/editor/src/core/extensions/custom-color.ts

@@ -106,6 +106,8 @@ export const CustomColorExtension = Mark.create({
     };
   },
 
+  // @ts-expect-error types are incorrect
+  // TODO: check this and update types
   parseHTML() {
     return [
       {

packages/editor/src/core/extensions/custom-image/components/image-block.tsx

@@ -1,5 +1,5 @@
-import React, { useRef, useState, useCallback, useLayoutEffect, useEffect } from "react";
 import { NodeSelection } from "@tiptap/pm/state";
+import React, { useRef, useState, useCallback, useLayoutEffect, useEffect } from "react";
 // plane utils
 import { cn } from "@plane/utils";
 // extensions
@@ -38,11 +38,11 @@ const ensurePixelString = <TDefault,>(value: Pixel | TDefault | number | undefin
 };
 
 type CustomImageBlockProps = CustoBaseImageNodeViewProps & {
-  imageFromFileSystem: string;
+  imageFromFileSystem: string | undefined;
   setFailedToLoadImage: (isError: boolean) => void;
   editorContainer: HTMLDivElement | null;
   setEditorContainer: (editorContainer: HTMLDivElement | null) => void;
-  src: string;
+  src: string | undefined;
 };
 
 export const CustomImageBlock: React.FC<CustomImageBlockProps> = (props) => {
@@ -62,8 +62,8 @@ export const CustomImageBlock: React.FC<CustomImageBlockProps> = (props) => {
   const { width: nodeWidth, height: nodeHeight, aspectRatio: nodeAspectRatio, src: imgNodeSrc } = node.attrs;
   // states
   const [size, setSize] = useState<Size>({
-    width: ensurePixelString(nodeWidth, "35%"),
-    height: ensurePixelString(nodeHeight, "auto"),
+    width: ensurePixelString(nodeWidth, "35%") ?? "35%",
+    height: ensurePixelString(nodeHeight, "auto") ?? "auto",
     aspectRatio: nodeAspectRatio || null,
   });
   const [isResizing, setIsResizing] = useState(false);
@@ -144,8 +144,8 @@ export const CustomImageBlock: React.FC<CustomImageBlockProps> = (props) => {
   useLayoutEffect(() => {
     setSize((prevSize) => ({
       ...prevSize,
-      width: ensurePixelString(nodeWidth),
-      height: ensurePixelString(nodeHeight),
+      width: ensurePixelString(nodeWidth) ?? "35%",
+      height: ensurePixelString(nodeHeight) ?? "auto",
       aspectRatio: nodeAspectRatio,
     }));
   }, [nodeWidth, nodeHeight, nodeAspectRatio]);
@@ -247,7 +247,16 @@ export const CustomImageBlock: React.FC<CustomImageBlockProps> = (props) => {
           try {
             setHasErroredOnFirstLoad(true);
             // this is a type error from tiptap, don't remove await until it's fixed
+            if (!imgNodeSrc) {
+              throw new Error("No source image to restore from");
+            }
             await editor?.commands.restoreImage?.(imgNodeSrc);
+            if (!imageRef.current) {
+              throw new Error("Image reference not found");
+            }
+            if (!resolvedImageSrc) {
+              throw new Error("No resolved image source available");
+            }
             imageRef.current.src = resolvedImageSrc;
           } catch {
             // if the image failed to even restore, then show the error state
@@ -277,7 +286,7 @@ export const CustomImageBlock: React.FC<CustomImageBlockProps> = (props) => {
           }
           image={{
             src: resolvedImageSrc,
-            aspectRatio: size.aspectRatio,
+            aspectRatio: size.aspectRatio === null ? 1 : size.aspectRatio,
             height: size.height,
             width: size.width,
           }}

packages/editor/src/core/extensions/custom-image/components/image-uploader.tsx

@@ -1,13 +1,13 @@
-import { ChangeEvent, useCallback, useEffect, useMemo, useRef } from "react";
 import { ImageIcon } from "lucide-react";
+import { ChangeEvent, useCallback, useEffect, useMemo, useRef } from "react";
 // plane utils
 import { cn } from "@plane/utils";
 // constants
 import { ACCEPTED_FILE_EXTENSIONS } from "@/constants/config";
-// hooks
-import { useUploader, useDropZone, uploadFirstImageAndInsertRemaining } from "@/hooks/use-file-upload";
 // extensions
 import { CustoBaseImageNodeViewProps, getImageComponentImageFileMap } from "@/extensions/custom-image";
+// hooks
+import { useUploader, useDropZone, uploadFirstImageAndInsertRemaining } from "@/hooks/use-file-upload";
 
 type CustomImageUploaderProps = CustoBaseImageNodeViewProps & {
   maxFileSize: number;
@@ -38,6 +38,7 @@ export const CustomImageUploader = (props: CustomImageUploaderProps) => {
   const onUpload = useCallback(
     (url: string) => {
       if (url) {
+        if (!imageEntityId) return;
         setIsUploaded(true);
         // Update the node view's src attribute post upload
         updateAttributes({ src: url });
@@ -82,7 +83,7 @@ export const CustomImageUploader = (props: CustomImageUploaderProps) => {
 
   // the meta data of the image component
   const meta = useMemo(
-    () => imageComponentImageFileMap?.get(imageEntityId),
+    () => imageComponentImageFileMap?.get(imageEntityId ?? ""),
     [imageComponentImageFileMap, imageEntityId]
   );
 
@@ -96,7 +97,7 @@ export const CustomImageUploader = (props: CustomImageUploaderProps) => {
         if (meta.hasOpenedFileInputOnce) return;
         fileInputRef.current.click();
         hasTriggeredFilePickerRef.current = true;
-        imageComponentImageFileMap?.set(imageEntityId, { ...meta, hasOpenedFileInputOnce: true });
+        imageComponentImageFileMap?.set(imageEntityId ?? "", { ...meta, hasOpenedFileInputOnce: true });
       }
     }
   }, [meta, uploadFile, imageComponentImageFileMap]);

packages/editor/src/core/extensions/custom-image/components/toolbar/full-screen.tsx

@@ -29,7 +29,7 @@ export const ImageFullScreenAction: React.FC<Props> = (props) => {
   const dragStart = useRef({ x: 0, y: 0 });
   const dragOffset = useRef({ x: 0, y: 0 });
   const modalRef = useRef<HTMLDivElement>(null);
-  const imgRef = useRef<HTMLImageElement>(null);
+  const imgRef = useRef<HTMLImageElement | null>(null);
 
   const widthInNumber = useMemo(() => Number(width?.replace("px", "")), [width]);
 

packages/editor/src/core/extensions/extensions.tsx

@@ -32,10 +32,10 @@ import {
 } from "@/extensions";
 // helpers
 import { isValidHttpUrl } from "@/helpers/common";
-// types
-import { TExtensions, TFileHandler, TMentionHandler } from "@/types";
 // plane editor extensions
 import { CoreEditorAdditionalExtensions } from "@/plane-editor/extensions";
+// types
+import { TExtensions, TFileHandler, TMentionHandler } from "@/types";
 
 type TArguments = {
   disabledExtensions: TExtensions[];
@@ -148,7 +148,7 @@ export const CoreEditorExtensions = (args: TArguments): Extensions => {
     CustomMentionExtension(mentionHandler),
     Placeholder.configure({
       placeholder: ({ editor, node }) => {
-        if (!editor.isEditable) return;
+        if (!editor.isEditable) return "";
 
         if (node.type.name === "heading") return `Heading ${node.attrs.level}`;
 

packages/editor/src/core/extensions/slash-commands/root.tsx

@@ -69,6 +69,7 @@ const renderItems = () => {
 
       const tippyContainer =
         document.querySelector(".active-editor") ?? document.querySelector('[id^="editor-container"]');
+      // @ts-expect-error - Tippy types are incorrect
       popup = tippy("body", {
         getReferenceClientRect: props.clientRect,
         appendTo: tippyContainer,

packages/editor/src/core/extensions/typography/index.ts

@@ -1,4 +1,4 @@
-import { Extension } from "@tiptap/core";
+import { Extension, InputRule } from "@tiptap/core";
 import {
   TypographyOptions,
   emDash,
@@ -26,7 +26,7 @@ export const CustomTypographyExtension = Extension.create<TypographyOptions>({
   name: "typography",
 
   addInputRules() {
-    const rules = [];
+    const rules: InputRule[] = [];
 
     if (this.options.emDash !== false) {
       rules.push(emDash(this.options.emDash));

packages/editor/src/core/hooks/use-editor.ts

@@ -128,13 +128,13 @@ export const useEditor = (props: CustomEditorProps) => {
   useImperativeHandle(
     forwardedRef,
     () => ({
-      blur: () => editor.commands.blur(),
+      blur: () => editor?.commands.blur(),
       scrollToNodeViaDOMCoordinates(behavior?: ScrollBehavior, pos?: number) {
-        const resolvedPos = pos ?? editor.state.selection.from;
+        const resolvedPos = pos ?? editor?.state.selection.from;
         if (!editor || !resolvedPos) return;
         scrollToNodeViaDOMCoordinates(editor, resolvedPos, behavior);
       },
-      getCurrentCursorPosition: () => editor.state.selection.from,
+      getCurrentCursorPosition: () => editor?.state.selection.from,
       clearEditor: (emitUpdate = false) => {
         editor?.chain().setMeta("skipImageDeletion", true).clearContent(emitUpdate).run();
       },
@@ -142,7 +142,7 @@ export const useEditor = (props: CustomEditorProps) => {
         editor?.commands.setContent(content, false, { preserveWhitespace: "full" });
       },
       setEditorValueAtCursorPosition: (content: string) => {
-        if (editor.state.selection) {
+        if (editor?.state.selection) {
           insertContentAtSavedSelection(editor, content);
         }
       },

packages/editor/src/core/hooks/use-read-only-editor.ts

@@ -99,14 +99,11 @@ export const useReadOnlyEditor = (props: CustomReadOnlyEditorProps) => {
       if (!editor) return;
       scrollSummary(editor, marking);
     },
-    getDocumentInfo: () => {
-      if (!editor) return;
-      return {
+    getDocumentInfo: () => ({
       characters: editor.storage?.characterCount?.characters?.() ?? 0,
       paragraphs: getParagraphCount(editor.state),
       words: editor.storage?.characterCount?.words?.() ?? 0,
-      };
-    },
+    }),
   }));
 
   if (!editor) {

packages/editor/tsconfig.json

@@ -12,6 +12,7 @@
       "@/styles/*": ["src/styles/*"],
       "@/plane-editor/*": ["src/ce/*"]
     },
+    "strictNullChecks": true,
     "allowSyntheticDefaultImports": true
   },
   "include": ["src/**/*", "index.d.ts"],