Merge remote-tracking branch 'origin/master' into zsviczian-stickynote

packages/common/src/constants.ts

@@ -410,6 +410,7 @@ export const DEFAULT_ELEMENT_PROPS: {
   roughness: ExcalidrawElement["roughness"];
   opacity: ExcalidrawElement["opacity"];
   locked: ExcalidrawElement["locked"];
+  containerBehavior: ExcalidrawElement["containerBehavior"];
 } = {
   strokeColor: COLOR_PALETTE.black,
   backgroundColor: COLOR_PALETTE.transparent,
@@ -419,6 +420,10 @@ export const DEFAULT_ELEMENT_PROPS: {
   roughness: ROUGHNESS.artist,
   opacity: 100,
   locked: false,
+  containerBehavior: {
+    textFlow: "growing",
+    margin: BOUND_TEXT_PADDING,
+  },
 };
 
 export const LIBRARY_SIDEBAR_TAB = "library";

packages/element/src/comparisons.ts

@@ -45,6 +45,9 @@ export const canChangeRoundness = (type: ElementOrToolType) =>
   type === "diamond" ||
   type === "image";
 
+export const hasContainerBehavior = (type: ElementOrToolType) =>
+  type === "rectangle" || type === "diamond" || type === "ellipse";
+
 export const toolIsArrow = (type: ElementOrToolType) => type === "arrow";
 
 export const canHaveArrowheads = (type: ElementOrToolType) => type === "arrow";

packages/element/src/delta.ts

@@ -2056,11 +2056,14 @@ export class ElementsDelta implements DeltaContainer<SceneElementsMap> {
     }
   }
 
-  private static stripIrrelevantProps(
-    partial: Partial<OrderedExcalidrawElement>,
-  ): ElementPartial {
-    const { id, updated, ...strippedPartial } = partial;
+  private static stripIrrelevantProps(partial: ElementPartial): ElementPartial {
+    const {
+      id: _id,
+      updated: _updated,
+      seed: _seed,
+      ...strippedPartial
+    } = partial as any;
 
-    return strippedPartial;
+    return strippedPartial as ElementPartial;
   }
 }

packages/element/src/flowchart.ts

@@ -268,6 +268,7 @@ const addNewNode = (
     opacity: element.opacity,
     fillStyle: element.fillStyle,
     strokeStyle: element.strokeStyle,
+    containerBehavior: element.containerBehavior,
   });
 
   invariant(
@@ -346,6 +347,7 @@ export const addNewNodes = (
       opacity: startNode.opacity,
       fillStyle: startNode.fillStyle,
       strokeStyle: startNode.strokeStyle,
+      containerBehavior: startNode.containerBehavior,
     });
 
     invariant(

packages/element/src/newElement.ts

@@ -10,6 +10,7 @@ import {
   getFontString,
   getUpdatedTimestamp,
   getLineHeight,
+  BOUND_TEXT_PADDING,
 } from "@excalidraw/common";
 
 import type { Radians } from "@excalidraw/math";
@@ -21,11 +22,11 @@ import {
   getResizedElementAbsoluteCoords,
 } from "./bounds";
 import { newElementWith } from "./mutateElement";
-import { getBoundTextMaxWidth } from "./textElement";
+import { getBoundTextMaxWidth, getBoundTextMaxHeight } from "./textElement";
 import { normalizeText, measureText } from "./textMeasurements";
 import { wrapText } from "./textWrapping";
 
-import { isLineElement } from "./typeChecks";
+import { isFlowchartType, isLineElement } from "./typeChecks";
 
 import type {
   ExcalidrawElement,
@@ -48,6 +49,8 @@ import type {
   ExcalidrawArrowElement,
   ExcalidrawElbowArrowElement,
   ExcalidrawLineElement,
+  ExcalidrawFlowchartNodeElement,
+  ContainerBehavior,
 } from "./types";
 
 export type ElementConstructorOpts = MarkOptional<
@@ -158,9 +161,26 @@ const _newElementBase = <T extends ExcalidrawElement>(
 export const newElement = (
   opts: {
     type: ExcalidrawGenericElement["type"];
+    containerBehavior?: ContainerBehavior;
   } & ElementConstructorOpts,
-): NonDeleted<ExcalidrawGenericElement> =>
-  _newElementBase<ExcalidrawGenericElement>(opts.type, opts);
+): NonDeleted<ExcalidrawGenericElement> => {
+  if (isFlowchartType(opts.type)) {
+    return {
+      ..._newElementBase<ExcalidrawFlowchartNodeElement>(
+        opts.type as ExcalidrawFlowchartNodeElement["type"],
+        opts,
+      ),
+      containerBehavior: {
+        textFlow: opts.containerBehavior?.textFlow ?? "growing",
+        margin: opts.containerBehavior?.margin ?? BOUND_TEXT_PADDING,
+      },
+    } as NonDeleted<ExcalidrawFlowchartNodeElement>;
+  }
+  return _newElementBase<ExcalidrawGenericElement>(
+    opts.type,
+    opts,
+  ) as NonDeleted<ExcalidrawGenericElement>;
+};
 
 export const newEmbeddableElement = (
   opts: {
@@ -417,6 +437,96 @@ const adjustXYWithRotation = (
   return [x, y];
 };
 
+// Sticky note font sizing constants
+export const STICKY_NOTE_FONT_STEP = 2;
+export const STICKY_NOTE_MIN_FONT_SIZE = 8;
+export const STICKY_NOTE_MAX_FONT_SIZE = 72;
+
+export interface StickyNoteFontComputationResult {
+  fontSize: number;
+  width: number;
+  height: number;
+  wrappedText: string;
+}
+
+/**
+ * Computes the appropriate font size (snapped to step) so that the text fits
+ * inside the sticky note container without resizing the container.
+ * It first tries to shrink if overflowing, otherwise opportunistically enlarges
+ * (still snapped) while it fits. Width is constrained by wrap at container width.
+ */
+export const computeStickyNoteFontSize = (
+  text: string,
+  element: ExcalidrawTextElement,
+  container: ExcalidrawTextContainer,
+  maxGrowFontSize?: number,
+): StickyNoteFontComputationResult => {
+  const step = STICKY_NOTE_FONT_STEP;
+  const maxH = getBoundTextMaxHeight(container, element as any);
+  const maxW = getBoundTextMaxWidth(container, element);
+
+  const snap = (size: number) =>
+    Math.max(
+      STICKY_NOTE_MIN_FONT_SIZE,
+      Math.max(step, Math.floor(size / step) * step),
+    );
+
+  let size = snap(element.fontSize);
+  const growthCap = snap(
+    maxGrowFontSize != null ? maxGrowFontSize : STICKY_NOTE_MAX_FONT_SIZE,
+  );
+
+  const lineHeight = element.lineHeight;
+  const fontFamily = element.fontFamily;
+
+  const measure = (fontSize: number) => {
+    const font = getFontString({ fontFamily, fontSize });
+    const wrappedText = wrapText(text, font, maxW);
+    const metrics = measureText(wrappedText, font, lineHeight);
+    return {
+      wrappedText,
+      width: Math.min(metrics.width, maxW),
+      height: metrics.height,
+    };
+  };
+
+  let { wrappedText, width, height } = measure(size);
+
+  if (height > maxH) {
+    // shrink until fits or min
+    while (size > STICKY_NOTE_MIN_FONT_SIZE) {
+      const next = snap(size - step);
+      if (next === size) {
+        break;
+      }
+      size = next;
+      ({ wrappedText, width, height } = measure(size));
+      if (height <= maxH) {
+        break;
+      }
+    }
+  } else {
+    // grow back only up to growthCap (initial session font size)
+    while (size < growthCap) {
+      const next = snap(Math.min(size + step, growthCap));
+      if (next === size) {
+        break;
+      }
+      const m = measure(next);
+      if (m.height <= maxH) {
+        size = next;
+        wrappedText = m.wrappedText;
+        width = m.width;
+        height = m.height;
+      } else {
+        break;
+      }
+    }
+  }
+
+  return { fontSize: size, width, height, wrappedText };
+};
+
 export const refreshTextDimensions = (
   textElement: ExcalidrawTextElement,
   container: ExcalidrawTextContainer | null,

packages/element/src/renderElement.ts

@@ -329,16 +329,24 @@ const generateElementCanvas = (
     boundTextCanvasContext.translate(-shiftX, -shiftY);
     // Clear the bound text area
     boundTextCanvasContext.clearRect(
-      -(boundTextElement.width / 2 + BOUND_TEXT_PADDING) *
+      -(
+        boundTextElement.width / 2 +
+        (element.containerBehavior?.margin ?? BOUND_TEXT_PADDING)
+      ) *
         window.devicePixelRatio *
         scale,
-      -(boundTextElement.height / 2 + BOUND_TEXT_PADDING) *
+      -(
+        boundTextElement.height / 2 +
+        (element.containerBehavior?.margin ?? BOUND_TEXT_PADDING)
+      ) *
         window.devicePixelRatio *
         scale,
-      (boundTextElement.width + BOUND_TEXT_PADDING * 2) *
+      (boundTextElement.width +
+        (element.containerBehavior?.margin ?? BOUND_TEXT_PADDING) * 2) *
         window.devicePixelRatio *
         scale,
-      (boundTextElement.height + BOUND_TEXT_PADDING * 2) *
+      (boundTextElement.height +
+        (element.containerBehavior?.margin ?? BOUND_TEXT_PADDING) * 2) *
         window.devicePixelRatio *
         scale,
     );

packages/element/src/resizeElements.ts

@@ -12,6 +12,7 @@ import {
   SHIFT_LOCKING_ANGLE,
   rescalePoints,
   getFontString,
+  BOUND_TEXT_PADDING,
 } from "@excalidraw/common";
 
 import type { GlobalPoint } from "@excalidraw/math";
@@ -784,10 +785,12 @@ export const resizeSingleElement = (
       const minWidth = getApproxMinLineWidth(
         getFontString(boundTextElement),
         boundTextElement.lineHeight,
+        latestElement.containerBehavior?.margin ?? BOUND_TEXT_PADDING,
       );
       const minHeight = getApproxMinLineHeight(
         boundTextElement.fontSize,
         boundTextElement.lineHeight,
+        latestElement.containerBehavior?.margin ?? BOUND_TEXT_PADDING,
       );
       nextWidth = Math.max(nextWidth, minWidth);
       nextHeight = Math.max(nextHeight, minHeight);

packages/element/src/textElement.ts

@@ -108,6 +108,7 @@ export const redrawTextBoundingBox = (
       const nextHeight = computeContainerDimensionForBoundText(
         metrics.height,
         container.type,
+        container.containerBehavior?.margin ?? BOUND_TEXT_PADDING,
       );
       scene.mutateElement(container, { height: nextHeight });
       updateOriginalContainerCache(container.id, nextHeight);
@@ -117,6 +118,7 @@ export const redrawTextBoundingBox = (
       const nextWidth = computeContainerDimensionForBoundText(
         metrics.width,
         container.type,
+        container.containerBehavior?.margin ?? BOUND_TEXT_PADDING,
       );
       scene.mutateElement(container, { width: nextWidth });
     }
@@ -187,6 +189,7 @@ export const handleBindTextResize = (
       containerHeight = computeContainerDimensionForBoundText(
         nextHeight,
         container.type,
+        container.containerBehavior?.margin ?? BOUND_TEXT_PADDING,
       );
 
       const diff = containerHeight - container.height;
@@ -353,8 +356,8 @@ export const getContainerCenter = (
 };
 
 export const getContainerCoords = (container: NonDeletedExcalidrawElement) => {
-  let offsetX = BOUND_TEXT_PADDING;
-  let offsetY = BOUND_TEXT_PADDING;
+  let offsetX = container.containerBehavior?.margin ?? BOUND_TEXT_PADDING;
+  let offsetY = container.containerBehavior?.margin ?? BOUND_TEXT_PADDING;
 
   if (container.type === "ellipse") {
     // The derivation of coordinates is explained in https://github.com/excalidraw/excalidraw/pull/6172
@@ -446,9 +449,10 @@ export const isValidTextContainer = (element: {
 export const computeContainerDimensionForBoundText = (
   dimension: number,
   containerType: ExtractSetType<typeof VALID_CONTAINER_TYPES>,
+  boundTextPadding: number,
 ) => {
   dimension = Math.ceil(dimension);
-  const padding = BOUND_TEXT_PADDING * 2;
+  const padding = boundTextPadding * 2;
 
   if (containerType === "ellipse") {
     return Math.round(((dimension + padding) / Math.sqrt(2)) * 2);
@@ -467,6 +471,8 @@ export const getBoundTextMaxWidth = (
   boundTextElement: ExcalidrawTextElement | null,
 ) => {
   const { width } = container;
+  const boundTextPadding =
+    container.containerBehavior?.margin ?? BOUND_TEXT_PADDING;
   if (isArrowElement(container)) {
     const minWidth =
       (boundTextElement?.fontSize ?? DEFAULT_FONT_SIZE) *
@@ -477,14 +483,14 @@ export const getBoundTextMaxWidth = (
     // The width of the largest rectangle inscribed inside an ellipse is
     // Math.round((ellipse.width / 2) * Math.sqrt(2)) which is derived from
     // equation of an ellipse -https://github.com/excalidraw/excalidraw/pull/6172
-    return Math.round((width / 2) * Math.sqrt(2)) - BOUND_TEXT_PADDING * 2;
+    return Math.round((width / 2) * Math.sqrt(2)) - boundTextPadding * 2;
   }
   if (container.type === "diamond") {
     // The width of the largest rectangle inscribed inside a rhombus is
     // Math.round(width / 2) - https://github.com/excalidraw/excalidraw/pull/6265
-    return Math.round(width / 2) - BOUND_TEXT_PADDING * 2;
+    return Math.round(width / 2) - boundTextPadding * 2;
   }
-  return width - BOUND_TEXT_PADDING * 2;
+  return width - boundTextPadding * 2;
 };
 
 export const getBoundTextMaxHeight = (
@@ -492,8 +498,10 @@ export const getBoundTextMaxHeight = (
   boundTextElement: ExcalidrawTextElementWithContainer,
 ) => {
   const { height } = container;
+  const boundTextPadding =
+    container.containerBehavior?.margin ?? BOUND_TEXT_PADDING;
   if (isArrowElement(container)) {
-    const containerHeight = height - BOUND_TEXT_PADDING * 8 * 2;
+    const containerHeight = height - boundTextPadding * 8 * 2;
     if (containerHeight <= 0) {
       return boundTextElement.height;
     }
@@ -503,14 +511,14 @@ export const getBoundTextMaxHeight = (
     // The height of the largest rectangle inscribed inside an ellipse is
     // Math.round((ellipse.height / 2) * Math.sqrt(2)) which is derived from
     // equation of an ellipse - https://github.com/excalidraw/excalidraw/pull/6172
-    return Math.round((height / 2) * Math.sqrt(2)) - BOUND_TEXT_PADDING * 2;
+    return Math.round((height / 2) * Math.sqrt(2)) - boundTextPadding * 2;
   }
   if (container.type === "diamond") {
     // The height of the largest rectangle inscribed inside a rhombus is
     // Math.round(height / 2) - https://github.com/excalidraw/excalidraw/pull/6265
-    return Math.round(height / 2) - BOUND_TEXT_PADDING * 2;
+    return Math.round(height / 2) - boundTextPadding * 2;
   }
-  return height - BOUND_TEXT_PADDING * 2;
+  return height - boundTextPadding * 2;
 };
 
 /** retrieves text from text elements and concatenates to a single string */

packages/element/src/textMeasurements.ts

@@ -32,22 +32,24 @@ const DUMMY_TEXT = "ABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789".toLocaleUpperCase();
 export const getApproxMinLineWidth = (
   font: FontString,
   lineHeight: ExcalidrawTextElement["lineHeight"],
+  boundTextPadding: number = BOUND_TEXT_PADDING,
 ) => {
   const maxCharWidth = getMaxCharWidth(font);
   if (maxCharWidth === 0) {
     return (
       measureText(DUMMY_TEXT.split("").join("\n"), font, lineHeight).width +
-      BOUND_TEXT_PADDING * 2
+      boundTextPadding * 2
     );
   }
-  return maxCharWidth + BOUND_TEXT_PADDING * 2;
+  return maxCharWidth + boundTextPadding * 2;
 };
 
 export const getMinTextElementWidth = (
   font: FontString,
   lineHeight: ExcalidrawTextElement["lineHeight"],
+  boundTextPadding: number = BOUND_TEXT_PADDING,
 ) => {
-  return measureText("", font, lineHeight).width + BOUND_TEXT_PADDING * 2;
+  return measureText("", font, lineHeight).width + boundTextPadding * 2;
 };
 
 export const isMeasureTextSupported = () => {
@@ -99,8 +101,9 @@ export const getLineHeightInPx = (
 export const getApproxMinLineHeight = (
   fontSize: ExcalidrawTextElement["fontSize"],
   lineHeight: ExcalidrawTextElement["lineHeight"],
+  boundTextPadding: number = BOUND_TEXT_PADDING,
 ) => {
-  return getLineHeightInPx(fontSize, lineHeight) + BOUND_TEXT_PADDING * 2;
+  return getLineHeightInPx(fontSize, lineHeight) + boundTextPadding * 2;
 };
 
 let textMetricsProvider: TextMetricsProvider | undefined;

packages/element/src/typeChecks.ts

@@ -272,15 +272,12 @@ export const isExcalidrawElement = (
   }
 };
 
+export const isFlowchartType = (type: string): boolean =>
+  ["rectangle", "ellipse", "diamond"].includes(type);
+
 export const isFlowchartNodeElement = (
   element: ExcalidrawElement,
-): element is ExcalidrawFlowchartNodeElement => {
-  return (
-    element.type === "rectangle" ||
-    element.type === "ellipse" ||
-    element.type === "diamond"
-  );
-};
+): element is ExcalidrawFlowchartNodeElement => isFlowchartType(element.type);
 
 export const hasBoundTextElement = (
   element: ExcalidrawElement | null,

packages/element/src/types.ts

@@ -27,6 +27,10 @@ export type StrokeRoundness = "round" | "sharp";
 export type RoundnessType = ValueOf<typeof ROUNDNESS>;
 export type StrokeStyle = "solid" | "dashed" | "dotted";
 export type TextAlign = typeof TEXT_ALIGN[keyof typeof TEXT_ALIGN];
+export type ContainerBehavior = {
+  textFlow: "growing" | "fixed";
+  margin?: number;
+};
 
 type VerticalAlignKeys = keyof typeof VERTICAL_ALIGN;
 export type VerticalAlign = typeof VERTICAL_ALIGN[VerticalAlignKeys];
@@ -79,21 +83,26 @@ type _ExcalidrawElementBase = Readonly<{
   link: string | null;
   locked: boolean;
   customData?: Record<string, any>;
+  containerBehavior?: ContainerBehavior;
 }>;
 
 export type ExcalidrawSelectionElement = _ExcalidrawElementBase & {
   type: "selection";
 };
 
-export type ExcalidrawRectangleElement = _ExcalidrawElementBase & {
+type _ExcalidrawStickyNoteContainer = _ExcalidrawElementBase & {
+  containerBehavior: ContainerBehavior;
+};
+
+export type ExcalidrawRectangleElement = _ExcalidrawStickyNoteContainer & {
   type: "rectangle";
 };
 
-export type ExcalidrawDiamondElement = _ExcalidrawElementBase & {
+export type ExcalidrawDiamondElement = _ExcalidrawStickyNoteContainer & {
   type: "diamond";
 };
 
-export type ExcalidrawEllipseElement = _ExcalidrawElementBase & {
+export type ExcalidrawEllipseElement = _ExcalidrawStickyNoteContainer & {
   type: "ellipse";
 };
 

packages/element/tests/textElement.test.ts

@@ -1,4 +1,4 @@
-import { getLineHeight } from "@excalidraw/common";
+import { BOUND_TEXT_PADDING, getLineHeight } from "@excalidraw/common";
 import { API } from "@excalidraw/excalidraw/tests/helpers/api";
 
 import { FONT_FAMILY, TEXT_ALIGN, VERTICAL_ALIGN } from "@excalidraw/common";
@@ -63,9 +63,13 @@ describe("Test measureText", () => {
         type: "rectangle",
         ...params,
       });
-      expect(computeContainerDimensionForBoundText(150, element.type)).toEqual(
-        160,
-      );
+      expect(
+        computeContainerDimensionForBoundText(
+          150,
+          element.type,
+          BOUND_TEXT_PADDING,
+        ),
+      ).toEqual(160);
     });
 
     it("should compute container height correctly for ellipse", () => {
@@ -73,9 +77,13 @@ describe("Test measureText", () => {
         type: "ellipse",
         ...params,
       });
-      expect(computeContainerDimensionForBoundText(150, element.type)).toEqual(
-        226,
-      );
+      expect(
+        computeContainerDimensionForBoundText(
+          150,
+          element.type,
+          BOUND_TEXT_PADDING,
+        ),
+      ).toEqual(226);
     });
 
     it("should compute container height correctly for diamond", () => {
@@ -83,9 +91,13 @@ describe("Test measureText", () => {
         type: "diamond",
         ...params,
       });
-      expect(computeContainerDimensionForBoundText(150, element.type)).toEqual(
-        320,
-      );
+      expect(
+        computeContainerDimensionForBoundText(
+          150,
+          element.type,
+          BOUND_TEXT_PADDING,
+        ),
+      ).toEqual(320);
     });
   });
 

packages/excalidraw/actions/actionBoundText.tsx

@@ -236,6 +236,9 @@ export const actionWrapTextInContainer = register({
     let updatedElements: readonly ExcalidrawElement[] = elements.slice();
     const containerIds: Mutable<AppState["selectedElementIds"]> = {};
 
+    const boundTextPadding =
+      appState.currentItemContainerBehavior?.margin ?? BOUND_TEXT_PADDING;
+
     for (const textElement of selectedElements) {
       if (isTextElement(textElement) && !isBoundToContainer(textElement)) {
         const container = newElement({
@@ -261,18 +264,21 @@ export const actionWrapTextInContainer = register({
               : null,
           opacity: 100,
           locked: false,
-          x: textElement.x - BOUND_TEXT_PADDING,
-          y: textElement.y - BOUND_TEXT_PADDING,
+          x: textElement.x - boundTextPadding,
+          y: textElement.y - boundTextPadding,
           width: computeContainerDimensionForBoundText(
             textElement.width,
             "rectangle",
+            boundTextPadding,
           ),
           height: computeContainerDimensionForBoundText(
             textElement.height,
             "rectangle",
+            boundTextPadding,
           ),
           groupIds: textElement.groupIds,
           frameId: textElement.frameId,
+          containerBehavior: appState.currentItemContainerBehavior,
         });
 
         // update bindings

packages/excalidraw/actions/actionProperties.tsx

@@ -21,10 +21,16 @@ import {
   getLineHeight,
   isTransparent,
   reduceToCommonValue,
+  BOUND_TEXT_PADDING,
   invariant,
 } from "@excalidraw/common";
 
-import { canBecomePolygon, getNonDeletedElements } from "@excalidraw/element";
+import {
+  canBecomePolygon,
+  getNonDeletedElements,
+  hasContainerBehavior,
+  isFlowchartNodeElement,
+} from "@excalidraw/element";
 
 import {
   bindBindingElement,
@@ -65,6 +71,7 @@ import type { LocalPoint, Radians } from "@excalidraw/math";
 
 import type {
   Arrowhead,
+  ContainerBehavior,
   ElementsMap,
   ExcalidrawBindableElement,
   ExcalidrawElement,
@@ -126,6 +133,11 @@ import {
   ArrowheadCrowfootIcon,
   ArrowheadCrowfootOneIcon,
   ArrowheadCrowfootOneOrManyIcon,
+  stickyNoteIcon,
+  growingContainerIcon,
+  marginLargeIcon,
+  marginMediumIcon,
+  marginSmallIcon,
 } from "../components/icons";
 
 import { Fonts } from "../fonts";
@@ -1548,6 +1560,275 @@ export const actionChangeRoundness = register<"sharp" | "round">({
   },
 });
 
+const getMargin = (value: "small" | "medium" | "large") => {
+  switch (value) {
+    case "small":
+      return BOUND_TEXT_PADDING;
+    case "medium":
+      return 15;
+    case "large":
+      return 25;
+    default:
+      return BOUND_TEXT_PADDING;
+  }
+};
+
+const getMarginValue = (margin: number | null) => {
+  if (margin === null) {
+    return null;
+  }
+  switch (margin) {
+    case BOUND_TEXT_PADDING:
+      return "small";
+    case 15:
+      return "medium";
+    case 25:
+      return "large";
+    default:
+      return null;
+  }
+};
+
+export const actionChangeContainerBehavior = register<
+  | { textFlow: ContainerBehavior["textFlow"] }
+  | { margin: NonNullable<ReturnType<typeof getMarginValue>> }
+>({
+  name: "changeContainerBehavior",
+  label: "labels.container",
+  trackEvent: false,
+  perform: (elements, appState, value, app) => {
+    invariant(value, "actionChangeContainerBehavior: value must be defined");
+    const elementsMap = app.scene.getNonDeletedElementsMap();
+    let selected = getSelectedElements(elements, appState, {
+      includeBoundTextElement: true,
+    });
+
+    if (selected.length === 0 && appState.editingTextElement) {
+      selected = [appState.editingTextElement];
+    }
+
+    const containerIdsToUpdate = new Set<string>();
+
+    // collect directly selected eligible containers
+    for (const el of selected) {
+      if (isFlowchartNodeElement(el)) {
+        containerIdsToUpdate.add(el.id);
+      }
+    }
+
+    // if none, and exactly one selected text element -> use its container if eligible
+    if (
+      containerIdsToUpdate.size === 0 &&
+      selected.length === 1 &&
+      isTextElement(selected[0]) &&
+      selected[0].containerId
+    ) {
+      const container = elementsMap.get(selected[0].containerId);
+      if (
+        container &&
+        isFlowchartNodeElement(container) &&
+        getBoundTextElement(container, elementsMap)
+      ) {
+        containerIdsToUpdate.add(container.id);
+      }
+    }
+
+    if ("margin" in value) {
+      const marginSize = getMargin(value.margin);
+      if (containerIdsToUpdate.size === 0) {
+        return {
+          appState: {
+            ...appState,
+            currentItemContainerBehavior: {
+              textFlow:
+                appState.currentItemContainerBehavior?.textFlow ?? "growing",
+              margin: marginSize,
+            },
+          },
+          captureUpdate: CaptureUpdateAction.IMMEDIATELY,
+        };
+      }
+      const nextElements = elements.map((el) =>
+        containerIdsToUpdate.has(el.id)
+          ? newElementWith(el, {
+              containerBehavior: {
+                textFlow: el.containerBehavior?.textFlow ?? "growing",
+                margin: marginSize,
+              },
+            })
+          : el,
+      );
+      // Invalidate containers to trigger re-render
+      containerIdsToUpdate.forEach((id) => {
+        const container = nextElements.find((el) => el.id === id);
+        if (container) {
+          const boundText = getBoundTextElement(
+            container,
+            arrayToMap(nextElements),
+          );
+          if (boundText) {
+            redrawTextBoundingBox(boundText, container, app.scene);
+          }
+        }
+      });
+
+      return {
+        elements: nextElements,
+        appState: {
+          ...appState,
+          currentItemContainerBehavior: {
+            textFlow:
+              appState.currentItemContainerBehavior?.textFlow ?? "growing",
+            margin: marginSize,
+          },
+        },
+        captureUpdate: CaptureUpdateAction.IMMEDIATELY,
+      };
+    }
+    const textFlow = value.textFlow;
+    const nextElements = elements.map((el) =>
+      containerIdsToUpdate.has(el.id)
+        ? newElementWith(el, {
+            containerBehavior: {
+              textFlow,
+              margin: el.containerBehavior?.margin ?? BOUND_TEXT_PADDING,
+            },
+          })
+        : el,
+    );
+    return {
+      elements: nextElements,
+      appState: {
+        ...appState,
+        currentItemContainerBehavior: {
+          textFlow,
+          margin:
+            appState.currentItemContainerBehavior?.margin ?? BOUND_TEXT_PADDING,
+        },
+      },
+      captureUpdate: CaptureUpdateAction.IMMEDIATELY,
+    };
+  },
+  PanelComponent: ({ elements, appState, updateData, app }) => {
+    const elementsMap = app.scene.getNonDeletedElementsMap();
+    let selected = getSelectedElements(elements, appState, {
+      includeBoundTextElement: true,
+    });
+
+    if (selected.length === 0 && appState.editingTextElement) {
+      selected = [appState.editingTextElement];
+    }
+
+    let targetContainers: ExcalidrawElement[] = [];
+
+    // case 1: one text element selected -> target its container if eligible
+    if (
+      selected.length === 1 &&
+      isTextElement(selected[0]) &&
+      selected[0].containerId
+    ) {
+      const container = elementsMap.get(selected[0].containerId);
+      if (
+        container &&
+        isFlowchartNodeElement(container) &&
+        getBoundTextElement(container, elementsMap)
+      ) {
+        targetContainers = [container];
+      }
+    } else {
+      // case 2: any eligible containers directly selected
+      targetContainers = selected.filter((el) => isFlowchartNodeElement(el));
+    }
+
+    if (
+      targetContainers.length === 0 &&
+      !hasContainerBehavior(appState.activeTool.type)
+    ) {
+      return null;
+    }
+
+    const textFlow =
+      targetContainers.length === 0
+        ? appState.currentItemContainerBehavior?.textFlow ?? "growing"
+        : reduceToCommonValue(
+            targetContainers,
+            (el) => el.containerBehavior?.textFlow ?? "growing",
+          ) ??
+          // mixed selection -> show null so nothing appears selected
+          null;
+
+    const marginValue =
+      targetContainers.length === 0
+        ? appState.currentItemContainerBehavior?.margin ?? BOUND_TEXT_PADDING
+        : reduceToCommonValue(
+            targetContainers,
+            (el) => el.containerBehavior?.margin ?? BOUND_TEXT_PADDING,
+          ) ??
+          // mixed selection -> show null so nothing appears selected
+          null;
+
+    return (
+      <fieldset>
+        <legend>{t("labels.container")}</legend>
+        <div className="buttonList">
+          <RadioSelection
+            group="container"
+            options={[
+              {
+                value: "growing",
+                text: t("labels.container_growing"),
+                icon: growingContainerIcon,
+              },
+              {
+                value: "fixed",
+                text: t("labels.container_fixed"),
+                icon: stickyNoteIcon,
+              },
+            ]}
+            value={
+              textFlow ??
+              (targetContainers.length
+                ? null
+                : appState.currentItemContainerBehavior?.textFlow ?? "growing")
+            }
+            onChange={(val) => updateData({ textFlow: val })}
+          />
+        </div>
+        <div className="buttonList">
+          <RadioSelection
+            group="container"
+            options={[
+              {
+                value: "small",
+                text: t("labels.container_margin_small"),
+                icon: marginSmallIcon,
+              },
+              {
+                value: "medium",
+                text: t("labels.container_margin_medium"),
+                icon: marginMediumIcon,
+              },
+              {
+                value: "large",
+                text: t("labels.container_margin_large"),
+                icon: marginLargeIcon,
+              },
+            ]}
+            value={getMarginValue(
+              marginValue ??
+                (targetContainers.length
+                  ? null
+                  : appState.currentItemContainerBehavior?.margin ??
+                    BOUND_TEXT_PADDING),
+            )}
+            onChange={(val) => updateData({ margin: val })}
+          />
+        </div>
+      </fieldset>
+    );
+  },
+});
+
 const getArrowheadOptions = (flip: boolean) => {
   return [
     {

packages/excalidraw/actions/index.ts

@@ -19,6 +19,7 @@ export {
   actionChangeTextAlign,
   actionChangeVerticalAlign,
   actionChangeArrowProperties,
+  actionChangeContainerBehavior,
 } from "./actionProperties";
 
 export {

packages/excalidraw/actions/types.ts

@@ -67,6 +67,7 @@ export type ActionName =
   | "changeStrokeShape"
   | "changeSloppiness"
   | "changeStrokeStyle"
+  | "changeContainerBehavior"
   | "changeArrowhead"
   | "changeArrowType"
   | "changeArrowProperties"

packages/excalidraw/appState.ts

@@ -42,6 +42,7 @@ export const getDefaultAppState = (): Omit<
     currentItemStrokeStyle: DEFAULT_ELEMENT_PROPS.strokeStyle,
     currentItemStrokeWidth: DEFAULT_ELEMENT_PROPS.strokeWidth,
     currentItemTextAlign: DEFAULT_TEXT_ALIGN,
+    currentItemContainerBehavior: DEFAULT_ELEMENT_PROPS.containerBehavior,
     currentHoveredFontFamily: null,
     cursorButton: "up",
     activeEmbeddable: null,
@@ -173,6 +174,7 @@ const APP_STATE_STORAGE_CONF = (<
   currentItemStrokeStyle: { browser: true, export: false, server: false },
   currentItemStrokeWidth: { browser: true, export: false, server: false },
   currentItemTextAlign: { browser: true, export: false, server: false },
+  currentItemContainerBehavior: { browser: true, export: false, server: false },
   currentHoveredFontFamily: { browser: false, export: false, server: false },
   cursorButton: { browser: true, export: false, server: false },
   activeEmbeddable: { browser: false, export: false, server: false },

packages/excalidraw/charts.ts

@@ -9,6 +9,7 @@ import {
   VERTICAL_ALIGN,
   randomId,
   isDevEnv,
+  BOUND_TEXT_PADDING,
 } from "@excalidraw/common";
 
 import {
@@ -334,6 +335,10 @@ const chartBaseElements = (
         strokeColor: COLOR_PALETTE.black,
         fillStyle: "solid",
         opacity: 6,
+        containerBehavior: {
+          textFlow: "growing",
+          margin: BOUND_TEXT_PADDING,
+        },
       })
     : null;
 
@@ -366,6 +371,10 @@ const chartTypeBar = (
       y: y - barHeight - BAR_GAP,
       width: BAR_WIDTH,
       height: barHeight,
+      containerBehavior: {
+        textFlow: "growing",
+        margin: BOUND_TEXT_PADDING,
+      },
     });
   });
 
@@ -432,6 +441,10 @@ const chartTypeLine = (
       y: y + cy - BAR_GAP * 2,
       width: BAR_GAP,
       height: BAR_GAP,
+      containerBehavior: {
+        textFlow: "growing",
+        margin: BOUND_TEXT_PADDING,
+      },
     });
   });
 

packages/excalidraw/components/Actions.tsx

@@ -10,6 +10,9 @@ import {
 } from "@excalidraw/common";
 
 import {
+  getContainerElement,
+  hasContainerBehavior,
+  isFlowchartNodeElement,
   shouldAllowVerticalAlign,
   suppportsHorizontalAlign,
   hasBoundTextElement,
@@ -155,6 +158,15 @@ export const SelectedShapeActions = ({
   ) {
     isSingleElementBoundContainer = true;
   }
+
+  const textContainer =
+    targetElements.length === 1 && isTextElement(targetElements[0])
+      ? getContainerElement(targetElements[0], elementsMap)
+      : null;
+
+  const isStickyNoteContainer =
+    textContainer && isFlowchartNodeElement(textContainer);
+
   const isEditingTextOrNewElement = Boolean(
     appState.editingTextElement || appState.newElement,
   );
@@ -218,6 +230,11 @@ export const SelectedShapeActions = ({
         <>{renderAction("changeRoundness")}</>
       )}
 
+      {(hasContainerBehavior(appState.activeTool.type) ||
+        targetElements.some((element) => isFlowchartNodeElement(element))) && (
+        <>{renderAction("changeContainerBehavior")}</>
+      )}
+
       {(toolIsArrow(appState.activeTool.type) ||
         targetElements.some((element) => toolIsArrow(element.type))) && (
         <>{renderAction("changeArrowType")}</>
@@ -241,6 +258,8 @@ export const SelectedShapeActions = ({
         <>{renderAction("changeArrowhead")}</>
       )}
 
+      {isStickyNoteContainer && <>{renderAction("changeContainerBehavior")}</>}
+
       {renderAction("changeOpacity")}
 
       <fieldset>
@@ -408,6 +427,10 @@ const CombinedShapeProperties = ({
                   canChangeRoundness(element.type),
                 )) &&
                 renderAction("changeRoundness")}
+              {(hasContainerBehavior(appState.activeTool.type) ||
+                targetElements.some((element) =>
+                  isFlowchartNodeElement(element),
+                )) && <>{renderAction("changeContainerBehavior")}</>}
               {renderAction("changeOpacity")}
             </div>
           </PropertiesPopover>
@@ -532,6 +555,14 @@ const CombinedTextProperties = ({
   const { saveCaretPosition, restoreCaretPosition } = useTextEditorFocus();
   const isOpen = appState.openPopup === "compactTextProperties";
 
+  const textContainer =
+    targetElements.length === 1 && isTextElement(targetElements[0])
+      ? getContainerElement(targetElements[0], elementsMap)
+      : null;
+
+  const isStickyNoteContainer =
+    textContainer && isFlowchartNodeElement(textContainer);
+
   return (
     <div className="compact-action-item">
       <Popover.Root
@@ -597,6 +628,9 @@ const CombinedTextProperties = ({
                 renderAction("changeTextAlign")}
               {shouldAllowVerticalAlign(targetElements, elementsMap) &&
                 renderAction("changeVerticalAlign")}
+              {isStickyNoteContainer && (
+                <>{renderAction("changeContainerBehavior")}</>
+              )}
             </div>
           </PropertiesPopover>
         )}

packages/excalidraw/components/App.tsx

@@ -96,6 +96,7 @@ import {
   MINIMUM_ARROW_SIZE,
   DOUBLE_TAP_POSITION_THRESHOLD,
   BIND_MODE_TIMEOUT,
+  BOUND_TEXT_PADDING,
   invariant,
   getFeatureFlag,
   createUserAgentDescriptor,
@@ -246,6 +247,7 @@ import {
   mutateElement,
   getElementBounds,
   doBoundsIntersect,
+  isFlowchartType,
   isPointInElement,
   maxBindingDistance_simple,
 } from "@excalidraw/element";
@@ -5776,8 +5778,13 @@ class App extends React.Component<AppProps, AppState> {
       const minWidth = getApproxMinLineWidth(
         getFontString(fontString),
         lineHeight,
+        container.containerBehavior?.margin ?? BOUND_TEXT_PADDING,
+      );
+      const minHeight = getApproxMinLineHeight(
+        fontSize,
+        lineHeight,
+        container.containerBehavior?.margin ?? BOUND_TEXT_PADDING,
       );
-      const minHeight = getApproxMinLineHeight(fontSize, lineHeight);
       const newHeight = Math.max(container.height, minHeight);
       const newWidth = Math.max(container.width, minWidth);
       this.scene.mutateElement(container, {
@@ -8721,6 +8728,9 @@ class App extends React.Component<AppProps, AppState> {
       roundness: this.getCurrentItemRoundness(elementType),
       locked: false,
       frameId: topLayerFrame ? topLayerFrame.id : null,
+      ...(isFlowchartType(elementType) && {
+        containerBehavior: this.state.currentItemContainerBehavior,
+      }),
     } as const;
 
     let element;

packages/excalidraw/components/icons.tsx

@@ -2373,3 +2373,101 @@ export const presentationIcon = createIcon(
   </g>,
   tablerIconProps,
 );
+
+export const stickyNoteIcon = createIcon(
+  <g>
+    <path d="M16 3H5a2 2 0 0 0-2 2v14a2 2 0 0 0 2 2h14a2 2 0 0 0 2-2V8Z" />
+    <path d="M15 3v4a2 2 0 0 0 2 2h4" />
+  </g>,
+  tablerIconProps,
+);
+
+export const marginSmallIcon = createIcon(
+  <g fill="none">
+    <rect
+      x="0"
+      y="0"
+      width="24"
+      height="24"
+      stroke="currentColor"
+      stroke-width="1.5"
+    />
+    <rect
+      x="2"
+      y="2"
+      width="20"
+      height="20"
+      stroke="currentColor"
+      stroke-width="1"
+      stroke-dasharray="1 1"
+    />
+  </g>,
+  tablerIconProps,
+);
+
+export const marginMediumIcon = createIcon(
+  <g fill="none">
+    <rect
+      x="0"
+      y="0"
+      width="24"
+      height="24"
+      stroke="currentColor"
+      stroke-width="1.5"
+    />
+    <rect
+      x="4"
+      y="4"
+      width="16"
+      height="16"
+      stroke="currentColor"
+      stroke-width="1"
+      stroke-dasharray="1 1"
+    />
+  </g>,
+  tablerIconProps,
+);
+
+export const marginLargeIcon = createIcon(
+  <g fill="none">
+    <rect
+      x="0"
+      y="0"
+      width="24"
+      height="24"
+      stroke="currentColor"
+      stroke-width="1.5"
+    />
+    <rect
+      x="6"
+      y="6"
+      width="12"
+      height="12"
+      stroke="currentColor"
+      stroke-width="1"
+      stroke-dasharray="1 1"
+    />
+  </g>,
+  tablerIconProps,
+);
+
+export const growingContainerIcon = createIcon(
+  <g
+    stroke="currentColor"
+    fill="none"
+    strokeLinecap="round"
+    strokeLinejoin="round"
+    strokeWidth={2}
+  >
+    <path d="M14 21h1" />
+    <path d="M21 14v1" />
+    <path d="M21 19a2 2 0 0 1-2 2" />
+    <path d="M21 9v1" />
+    <path d="M3 14v1" />
+    <path d="M3 5a2 2 0 0 1 2-2h14a2 2 0 0 1 2 2" />
+    <path d="M3 9v1" />
+    <path d="M5 21a2 2 0 0 1-2-2" />
+    <path d="M9 21h1" />
+  </g>,
+  tablerIconProps,
+);

packages/excalidraw/data/restore.ts

@@ -17,10 +17,12 @@ import {
   getSizeFromPoints,
   normalizeLink,
   getLineHeight,
+  BOUND_TEXT_PADDING,
 } from "@excalidraw/common";
 import {
   calculateFixedPointForNonElbowArrowBinding,
   getNonDeletedElements,
+  isFlowchartType,
   isPointInElement,
   isValidPolygon,
   projectFixedPointOntoDiagonal,
@@ -60,6 +62,7 @@ import type {
   ExcalidrawBindableElement,
   ExcalidrawElbowArrowElement,
   ExcalidrawElement,
+  ExcalidrawElementType,
   ExcalidrawLinearElement,
   ExcalidrawSelectionElement,
   ExcalidrawTextElement,
@@ -196,14 +199,27 @@ const repairBinding = <T extends ExcalidrawArrowElement>(
   return null;
 };
 
-const restoreElementWithProperties = <
-  T extends Required<Omit<ExcalidrawElement, "customData">> & {
+type _ElementForRestoreBase = Required<
+  Omit<ExcalidrawElement, "customData" | "containerBehavior">
+> &
+  Pick<ExcalidrawElement, "containerBehavior"> & {
     customData?: ExcalidrawElement["customData"];
     /** @deprecated */
     boundElementIds?: readonly ExcalidrawElement["id"][];
     /** @deprecated */
     strokeSharpness?: StrokeRoundness;
-  },
+  };
+
+const restoreElementWithProperties = <
+  T extends _ElementForRestoreBase &
+    Omit<
+      any,
+      | keyof ExcalidrawElement
+      | "boundElementIds"
+      | "strokeSharpness"
+      | "customData"
+      | "containerBehavior"
+    >,
   K extends Pick<T, keyof Omit<Required<T>, keyof ExcalidrawElement>>,
 >(
   element: T,
@@ -215,11 +231,13 @@ const restoreElementWithProperties = <
   > &
     Partial<Pick<ExcalidrawElement, "type" | "x" | "y" | "customData">>,
 ): T => {
+  const nextType = (extra.type || element.type) as ExcalidrawElementType;
+
   const base: Pick<T, keyof ExcalidrawElement> = {
-    type: extra.type || element.type,
+    type: nextType,
+    version: element.version || 1,
     // all elements must have version > 0 so getSceneVersion() will pick up
     // newly added elements
-    version: element.version || 1,
     versionNonce: element.versionNonce ?? 0,
     index: element.index ?? null,
     isDeleted: element.isDeleted ?? false,
@@ -247,7 +265,7 @@ const restoreElementWithProperties = <
       ? {
           // for old elements that would now use adaptive radius algo,
           // use legacy algo instead
-          type: isUsingAdaptiveRadius(element.type)
+          type: isUsingAdaptiveRadius(nextType)
             ? ROUNDNESS.LEGACY
             : ROUNDNESS.PROPORTIONAL_RADIUS,
         }
@@ -258,10 +276,18 @@ const restoreElementWithProperties = <
     updated: element.updated ?? getUpdatedTimestamp(),
     link: element.link ? normalizeLink(element.link) : null,
     locked: element.locked ?? false,
+    ...(isFlowchartType(nextType)
+      ? {
+          containerBehavior: {
+            textFlow: element.containerBehavior?.textFlow ?? "growing",
+            margin: element.containerBehavior?.margin ?? BOUND_TEXT_PADDING,
+          },
+        }
+      : {}),
   };
 
   if ("customData" in element || "customData" in extra) {
-    base.customData =
+    (base as any).customData =
       "customData" in extra ? extra.customData : element.customData;
   }
 
@@ -276,8 +302,8 @@ const restoreElementWithProperties = <
   } as unknown as T;
 
   // strip legacy props (migrated in previous steps)
-  delete ret.strokeSharpness;
-  delete ret.boundElementIds;
+  delete (ret as any).strokeSharpness;
+  delete (ret as any).boundElementIds;
 
   return ret;
 };

packages/excalidraw/locales/en.json

@@ -31,6 +31,12 @@
     "strokeStyle_dashed": "Dashed",
     "strokeStyle_dotted": "Dotted",
     "sloppiness": "Sloppiness",
+    "container": "Container",
+    "container_fixed": "Sticky note",
+    "container_growing": "Fit to text",
+    "container_margin_small": "Small margin",
+    "container_margin_medium": "Medium margin",
+    "container_margin_large": "Large margin",
     "opacity": "Opacity",
     "textAlign": "Text align",
     "edges": "Edges",

packages/excalidraw/tests/fixtures/elementFixture.ts

@@ -1,4 +1,4 @@
-import { DEFAULT_FONT_FAMILY } from "@excalidraw/common";
+import { BOUND_TEXT_PADDING, DEFAULT_FONT_FAMILY } from "@excalidraw/common";
 
 import type { Radians } from "@excalidraw/math";
 
@@ -34,25 +34,29 @@ const elementBase: Omit<ExcalidrawElement, "type"> = {
 
 export const rectangleFixture: ExcalidrawElement = {
   ...elementBase,
+  containerBehavior: { textFlow: "growing", margin: BOUND_TEXT_PADDING },
   type: "rectangle",
-};
+} as unknown as ExcalidrawElement;
 export const embeddableFixture: ExcalidrawElement = {
   ...elementBase,
   type: "embeddable",
 };
 export const ellipseFixture: ExcalidrawElement = {
   ...elementBase,
+  containerBehavior: { textFlow: "growing", margin: BOUND_TEXT_PADDING },
   type: "ellipse",
-};
+} as unknown as ExcalidrawElement;
 export const diamondFixture: ExcalidrawElement = {
   ...elementBase,
+  containerBehavior: { textFlow: "growing", margin: BOUND_TEXT_PADDING },
   type: "diamond",
-};
+} as unknown as ExcalidrawElement;
 export const rectangleWithLinkFixture: ExcalidrawElement = {
   ...elementBase,
+  containerBehavior: { textFlow: "growing", margin: BOUND_TEXT_PADDING },
   type: "rectangle",
   link: "excalidraw.com",
-};
+} as unknown as ExcalidrawElement;
 
 export const textFixture: ExcalidrawElement = {
   ...elementBase,

packages/excalidraw/tests/helpers/api.ts

@@ -4,7 +4,7 @@ import util from "util";
 
 import { pointFrom, type LocalPoint, type Radians } from "@excalidraw/math";
 
-import { DEFAULT_VERTICAL_ALIGN, ROUNDNESS, assertNever } from "@excalidraw/common";
+import { BOUND_TEXT_PADDING, DEFAULT_VERTICAL_ALIGN, ROUNDNESS, assertNever } from "@excalidraw/common";
 
 import {
   newArrowElement,
@@ -217,6 +217,10 @@ export class API {
       : never;
     elbowed?: boolean;
     fixedSegments?: FixedSegment[] | null;
+    containerBehavior?: T extends "rectangle" | "diamond" | "ellipse"
+      ? ExcalidrawGenericElement["containerBehavior"]
+      : never;
+  } = {
   }): T extends "arrow" | "line"
     ? ExcalidrawLinearElement
     : T extends "freedraw"
@@ -282,6 +286,10 @@ export class API {
         element = newElement({
           type: type as "rectangle" | "diamond" | "ellipse",
           ...base,
+          containerBehavior: {
+            textFlow: rest.containerBehavior?.textFlow ?? "growing",
+            margin: rest.containerBehavior?.margin ?? BOUND_TEXT_PADDING,
+          },  
         });
         break;
       case "embeddable":

packages/excalidraw/types.ts

@@ -348,6 +348,7 @@ export interface AppState {
   currentHoveredFontFamily: FontFamilyValues | null;
   currentItemRoundness: StrokeRoundness;
   currentItemArrowType: "sharp" | "round" | "elbow";
+  currentItemContainerBehavior: ExcalidrawElement["containerBehavior"];
   viewBackgroundColor: string;
   scrollX: number;
   scrollY: number;

packages/excalidraw/wysiwyg/textWysiwyg.tsx

@@ -8,6 +8,7 @@ import {
   getFontFamilyString,
   isTestEnv,
   MIME_TYPES,
+  BOUND_TEXT_PADDING,
 } from "@excalidraw/common";
 
 import {
@@ -36,6 +37,7 @@ import {
   isBoundToContainer,
   isTextElement,
 } from "@excalidraw/element";
+import { computeStickyNoteFontSize } from "@excalidraw/element";
 
 import type {
   ExcalidrawElement,
@@ -130,6 +132,8 @@ export const textWysiwyg = ({
     return false;
   };
 
+  let stickyNoteInitialFontSize: number | null = null;
+
   const updateWysiwygStyle = () => {
     const appState = app.state;
     const updatedTextElement = app.scene.getElement<ExcalidrawTextElement>(id);
@@ -157,65 +161,42 @@ export const textWysiwyg = ({
       let maxHeight = updatedTextElement.height;
 
       if (container && updatedTextElement.containerId) {
-        if (isArrowElement(container)) {
-          const boundTextCoords =
-            LinearElementEditor.getBoundTextElementPosition(
-              container,
-              updatedTextElement as ExcalidrawTextElementWithContainer,
-              elementsMap,
-            );
-          coordX = boundTextCoords.x;
-          coordY = boundTextCoords.y;
-        }
-        const propertiesUpdated = textPropertiesUpdated(
-          updatedTextElement,
-          editable,
-        );
-
-        let originalContainerData;
-        if (propertiesUpdated) {
-          originalContainerData = updateOriginalContainerCache(
-            container.id,
-            container.height,
-          );
-        } else {
-          originalContainerData = originalContainerCache[container.id];
-          if (!originalContainerData) {
-            originalContainerData = updateOriginalContainerCache(
-              container.id,
-              container.height,
-            );
+        if ((container as any).containerBehavior?.textFlow === "fixed") {
+          if (stickyNoteInitialFontSize == null) {
+            stickyNoteInitialFontSize = updatedTextElement.fontSize;
           }
-        }
-
-        maxWidth = getBoundTextMaxWidth(container, updatedTextElement);
-        maxHeight = getBoundTextMaxHeight(
-          container,
-          updatedTextElement as ExcalidrawTextElementWithContainer,
-        );
-
-        // autogrow container height if text exceeds
-        if (!isArrowElement(container) && height > maxHeight) {
-          const targetContainerHeight = computeContainerDimensionForBoundText(
-            height,
-            container.type,
+          const elementsMap = app.scene.getNonDeletedElementsMap();
+          maxWidth = getBoundTextMaxWidth(container, updatedTextElement);
+          maxHeight = getBoundTextMaxHeight(
+            container,
+            updatedTextElement as ExcalidrawTextElementWithContainer,
           );
-
-          app.scene.mutateElement(container, { height: targetContainerHeight });
-          return;
-        } else if (
-          // autoshrink container height until original container height
-          // is reached when text is removed
-          !isArrowElement(container) &&
-          container.height > originalContainerData.height &&
-          height < maxHeight
-        ) {
-          const targetContainerHeight = computeContainerDimensionForBoundText(
-            height,
-            container.type,
+          const {
+            fontSize,
+            width: fittedW,
+            height: fittedH,
+            wrappedText,
+          } = computeStickyNoteFontSize(
+            editable.value,
+            updatedTextElement,
+            container,
+            stickyNoteInitialFontSize,
           );
-          app.scene.mutateElement(container, { height: targetContainerHeight });
-        } else {
+          const needsUpdate =
+            fontSize !== updatedTextElement.fontSize ||
+            fittedW !== updatedTextElement.width ||
+            fittedH !== updatedTextElement.height ||
+            wrappedText !== updatedTextElement.text;
+
+          if (needsUpdate) {
+            app.scene.mutateElement(updatedTextElement, {
+              fontSize,
+              width: fittedW,
+              height: fittedH,
+              text: wrappedText,
+            });
+          }
+
           const { x, y } = computeBoundTextPosition(
             container,
             updatedTextElement as ExcalidrawTextElementWithContainer,
@@ -223,6 +204,87 @@ export const textWysiwyg = ({
           );
           coordX = x;
           coordY = y;
+          width = fittedW;
+          height = fittedH;
+        } else {
+          if (isArrowElement(container)) {
+            const boundTextCoords =
+              LinearElementEditor.getBoundTextElementPosition(
+                container,
+                updatedTextElement as ExcalidrawTextElementWithContainer,
+                elementsMap,
+              );
+            coordX = boundTextCoords.x;
+            coordY = boundTextCoords.y;
+          }
+          const propertiesUpdated = textPropertiesUpdated(
+            updatedTextElement,
+            editable,
+          );
+
+          let originalContainerData;
+          if (propertiesUpdated) {
+            originalContainerData = updateOriginalContainerCache(
+              container.id,
+              container.height,
+            );
+          } else {
+            originalContainerData = originalContainerCache[container.id];
+            if (!originalContainerData) {
+              originalContainerData = updateOriginalContainerCache(
+                container.id,
+                container.height,
+              );
+            }
+          }
+
+          maxWidth = getBoundTextMaxWidth(container, updatedTextElement);
+          maxHeight = getBoundTextMaxHeight(
+            container,
+            updatedTextElement as ExcalidrawTextElementWithContainer,
+          );
+
+          // autogrow / autoshrink only for non-sticky behaviors
+          if ((container as any).containerBehavior?.textFlow !== "fixed") {
+            // autogrow container height if text exceeds
+            if (!isArrowElement(container) && height > maxHeight) {
+              const targetContainerHeight =
+                computeContainerDimensionForBoundText(
+                  height,
+                  container.type,
+                  container.containerBehavior?.margin ?? BOUND_TEXT_PADDING,
+                );
+
+              app.scene.mutateElement(container, {
+                height: targetContainerHeight,
+              });
+              return;
+            } else if (
+              // autoshrink container height until original container height
+              // is reached when text is removed
+              !isArrowElement(container) &&
+              container.height > originalContainerData.height &&
+              height < maxHeight
+            ) {
+              const targetContainerHeight =
+                computeContainerDimensionForBoundText(
+                  height,
+                  container.type,
+                  container.containerBehavior?.margin ?? BOUND_TEXT_PADDING,
+                );
+              app.scene.mutateElement(container, {
+                height: targetContainerHeight,
+              });
+            } else {
+              const { x, y } = computeBoundTextPosition(
+                container,
+                updatedTextElement as ExcalidrawTextElementWithContainer,
+                elementsMap,
+              );
+              coordX = x;
+              coordY = y;
+            }
+          }
         }
       }
       const [viewportX, viewportY] = getViewportCoords(coordX, coordY);