feat: Support mermaid flowchart and sequence diagrams to excalidraw diagrams 🥳 (#6920)

* feat: integrate mermaidToExcalidraw * create mermaid to excal dialog * allow mermaid syntax and export in preview * fix * fix webpack config * fix markdown error by using named export * center preview * set elements as selected when inserted onto canvas * persist mermaid data to storage * store canvas data in refs * load mermaid lazily * tweak design * compute width, height correctly for arrows * fix undefined vertex issue * add mermaid icon in dropdown * add a note in dialog * reset preview when error * show error in preview when error * show mermaid error messgae react way * design tweaks * add example and docs link * fix * tweak design to remove scroll bar * show a spinner unless mermaid loaded * regenerate ids when needed via programmatic api, this makes sure for mermaid diagrams ids are regenerated * tweak * add option to transform viewport to scene coords in transform api * make opts optional and use 100% zoom when inserting to canvas * fix arrow bindings in safari and firefox * fix elements insert position and viewport centering * fix: Update start/end points by 0.5 so bindings don't overlap with start/end bound element coordinates. * defer rendering the preview * tweak text * fix tests * remove only * make design responsive * fix: show extra tools dropdown in mobile * fix mobile css * width auto * upgrade mermaid-to-excalidraw * don't pass appState in deps as its not used * upgrade mermaid-to-excalidraw to fix firefox issue * use types from mermaid-to-excalidraw * upgrade mermaid-to-excalidraw * use stable version of mermaid-to-excalidraw * upgrade mermaid-to-excalidraw * fix width of shapes toolbar for smaller screen size and also fix regression of mobile menu * use i18n * better api * enable test coverage in ui * Add tests * use common utils to update and get text editor * updgrade mermaid-to-excalidraw to support sequence diagrams * fix test * don't update arrow container height anytime in when redrawing text bounding box * increase size limit * increase size limit of vendor to 900kb * use openDialog for mermaid * upgrade mermaid-to-excalidraw * update frame id post generation * upgrade mermaid-to-excalidraw to add entity codes support * update size limit * upgrade mermaid-to-excalidraw package with frame api changes * upgrade mermaid-to-excalidraw to remove directive and use config * don't highlight mermaid tool and remove unused api setSelection * stop using loading state to update text area * move some styling to scss * review fixes * use modifiedTableIcon props and remove stale snap * css * dialog css * fix snap * use dialog border * change mermaidToExcalidrawLib to state * better styling of errors * make modal bigger * fix mobile * update snaps * fix icon color * fix dark mode insert button color * horizontally center spinner * render canvas conditionally on loaded state * rd tweaks * tweak class names * remove max height * typo in example * upgrade mermaid-to-excalidraw * simplify error state * fix height & overflow on vertical breakpoint * fix lint * show errors in overlay * set textarea font family * reduce opacity * update snap * upgrade to mermaid 0.1.2 --------- Co-authored-by: dwelle <luzar.david@gmail.com>
2025-05-03 10:00:07 -04:00 · 2023-11-03 17:41:34 +05:30 · 2023-11-03 17:41:34 +05:30 · e8def8da8d
commit e8def8da8d
parent a7db41c5ba
26 changed files with 1579 additions and 1228 deletions
--- a/src/components/Actions.tsx
+++ b/src/components/Actions.tsx
@ -34,6 +34,7 @@ import {
  EmbedIcon,
  extraToolsIcon,
  frameToolIcon,
+  mermaidLogoIcon,
  laserPointerToolIcon,
 } from "./icons";
 import { KEYS } from "../keys";
@ -223,7 +224,6 @@ export const ShapesSwitcher = ({
  app: AppClassProperties;
 }) => {
  const [isExtraToolsMenuOpen, setIsExtraToolsMenuOpen] = useState(false);
-  const device = useDevice();

  const frameToolSelected = activeTool.type === "frame";
  const laserToolSelected = activeTool.type === "laser";
@ -273,111 +273,63 @@ export const ShapesSwitcher = ({
        );
      })}
      <div className="App-toolbar__divider" />
-      {/* TEMP HACK because dropdown doesn't work well inside mobile toolbar */}
-      {device.isMobile ? (
-        <>
-          <ToolButton
-            className={clsx("Shape", { fillable: false })}
-            type="radio"
+
+      <DropdownMenu open={isExtraToolsMenuOpen}>
+        <DropdownMenu.Trigger
+          className={clsx("App-toolbar__extra-tools-trigger", {
+            "App-toolbar__extra-tools-trigger--selected":
+              frameToolSelected ||
+              embeddableToolSelected ||
+              // in collab we're already highlighting the laser button
+              // outside toolbar, so let's not highlight extra-tools button
+              // on top of it
+              (laserToolSelected && !app.props.isCollaborating),
+          })}
+          onToggle={() => setIsExtraToolsMenuOpen(!isExtraToolsMenuOpen)}
+          title={t("toolBar.extraTools")}
+        >
+          {extraToolsIcon}
+        </DropdownMenu.Trigger>
+        <DropdownMenu.Content
+          onClickOutside={() => setIsExtraToolsMenuOpen(false)}
+          onSelect={() => setIsExtraToolsMenuOpen(false)}
+          className="App-toolbar__extra-tools-dropdown"
+        >
+          <DropdownMenu.Item
+            onSelect={() => app.setActiveTool({ type: "frame" })}
            icon={frameToolIcon}
-            checked={activeTool.type === "frame"}
-            name="editor-current-shape"
-            title={`${capitalizeString(
-              t("toolBar.frame"),
-            )} — ${KEYS.F.toLocaleUpperCase()}`}
-            keyBindingLabel={KEYS.F.toLocaleUpperCase()}
-            aria-label={capitalizeString(t("toolBar.frame"))}
-            aria-keyshortcuts={KEYS.F.toLocaleUpperCase()}
-            data-testid={`toolbar-frame`}
-            onPointerDown={({ pointerType }) => {
-              if (!appState.penDetected && pointerType === "pen") {
-                app.togglePenMode(true);
-              }
-            }}
-            onChange={({ pointerType }) => {
-              trackEvent("toolbar", "frame", "ui");
-              app.setActiveTool({ type: "frame" });
-            }}
-            selected={activeTool.type === "frame"}
-          />
-          <ToolButton
-            className={clsx("Shape", { fillable: false })}
-            type="radio"
+            shortcut={KEYS.F.toLocaleUpperCase()}
+            data-testid="toolbar-frame"
+            selected={frameToolSelected}
+          >
+            {t("toolBar.frame")}
+          </DropdownMenu.Item>
+          <DropdownMenu.Item
+            onSelect={() => app.setActiveTool({ type: "embeddable" })}
            icon={EmbedIcon}
-            checked={activeTool.type === "embeddable"}
-            name="editor-current-shape"
-            title={capitalizeString(t("toolBar.embeddable"))}
-            aria-label={capitalizeString(t("toolBar.embeddable"))}
-            data-testid={`toolbar-embeddable`}
-            onPointerDown={({ pointerType }) => {
-              if (!appState.penDetected && pointerType === "pen") {
-                app.togglePenMode(true);
-              }
-            }}
-            onChange={({ pointerType }) => {
-              trackEvent("toolbar", "embeddable", "ui");
-              app.setActiveTool({ type: "embeddable" });
-            }}
-            selected={activeTool.type === "embeddable"}
-          />
-        </>
-      ) : (
-        <DropdownMenu open={isExtraToolsMenuOpen}>
-          <DropdownMenu.Trigger
-            className={clsx("App-toolbar__extra-tools-trigger", {
-              "App-toolbar__extra-tools-trigger--selected":
-                frameToolSelected ||
-                embeddableToolSelected ||
-                // in collab we're already highlighting the laser button
-                // outside toolbar, so let's not highlight extra-tools button
-                // on top of it
-                (laserToolSelected && !app.props.isCollaborating),
-            })}
-            onToggle={() => setIsExtraToolsMenuOpen(!isExtraToolsMenuOpen)}
-            title={t("toolBar.extraTools")}
+            data-testid="toolbar-embeddable"
+            selected={embeddableToolSelected}
          >
-            {extraToolsIcon}
-          </DropdownMenu.Trigger>
-          <DropdownMenu.Content
-            onClickOutside={() => setIsExtraToolsMenuOpen(false)}
-            onSelect={() => setIsExtraToolsMenuOpen(false)}
-            className="App-toolbar__extra-tools-dropdown"
+            {t("toolBar.embeddable")}
+          </DropdownMenu.Item>
+          <DropdownMenu.Item
+            onSelect={() => app.setActiveTool({ type: "laser" })}
+            icon={laserPointerToolIcon}
+            data-testid="toolbar-laser"
+            selected={laserToolSelected}
+            shortcut={KEYS.K.toLocaleUpperCase()}
          >
-            <DropdownMenu.Item
-              onSelect={() => {
-                app.setActiveTool({ type: "frame" });
-              }}
-              icon={frameToolIcon}
-              shortcut={KEYS.F.toLocaleUpperCase()}
-              data-testid="toolbar-frame"
-              selected={frameToolSelected}
-            >
-              {t("toolBar.frame")}
-            </DropdownMenu.Item>
-            <DropdownMenu.Item
-              onSelect={() => {
-                app.setActiveTool({ type: "embeddable" });
-              }}
-              icon={EmbedIcon}
-              data-testid="toolbar-embeddable"
-              selected={embeddableToolSelected}
-            >
-              {t("toolBar.embeddable")}
-            </DropdownMenu.Item>
-            <DropdownMenu.Item
-              onSelect={() => {
-                app.setActiveTool({ type: "laser" });
-              }}
-              icon={laserPointerToolIcon}
-              data-testid="toolbar-laser"
-              selected={laserToolSelected}
-              shortcut={KEYS.K.toLocaleUpperCase()}
-            >
-              {t("toolBar.laser")}
-            </DropdownMenu.Item>
-          </DropdownMenu.Content>
-        </DropdownMenu>
-      )}
+            {t("toolBar.laser")}
+          </DropdownMenu.Item>
+          <DropdownMenu.Item
+            onSelect={() => app.setOpenDialog("mermaid")}
+            icon={mermaidLogoIcon}
+            data-testid="toolbar-embeddable"
+          >
+            {t("toolBar.mermaidToExcalidraw")}
+          </DropdownMenu.Item>
+        </DropdownMenu.Content>
+      </DropdownMenu>
    </>
  );
 };
--- a/src/components/App.tsx
+++ b/src/components/App.tsx
@ -366,6 +366,7 @@ import { isSidebarDockedAtom } from "./Sidebar/Sidebar";
 import { StaticCanvas, InteractiveCanvas } from "./canvases";
 import { Renderer } from "../scene/Renderer";
 import { ShapeCache } from "../scene/ShapeCache";
+import MermaidToExcalidraw from "./MermaidToExcalidraw";
 import { LaserToolOverlay } from "./LaserTool/LaserTool";
 import { LaserPathManager } from "./LaserTool/LaserPathManager";
 import {
@ -1245,7 +1246,11 @@ class App extends React.Component<AppProps, AppState> {
                          isCollaborating={this.props.isCollaborating}
                        >
                          {this.props.children}
+                          {this.state.openDialog === "mermaid" && (
+                            <MermaidToExcalidraw />
+                          )}
                        </LayerUI>
+
                        <div className="excalidraw-textEditorContainer" />
                        <div className="excalidraw-contextMenuContainer" />
                        <div className="excalidraw-eye-dropper-container" />
@ -2324,11 +2329,12 @@ class App extends React.Component<AppProps, AppState> {
    },
  );

-  private addElementsFromPasteOrLibrary = (opts: {
+  addElementsFromPasteOrLibrary = (opts: {
    elements: readonly ExcalidrawElement[];
    files: BinaryFiles | null;
    position: { clientX: number; clientY: number } | "cursor" | "center";
    retainSeed?: boolean;
+    fitToContent?: boolean;
  }) => {
    const elements = restoreElements(opts.elements, null, undefined);
    const [minX, minY, maxX, maxY] = getCommonBounds(elements);
@ -2433,6 +2439,12 @@ class App extends React.Component<AppProps, AppState> {
      },
    );
    this.setActiveTool({ type: "selection" });
+
+    if (opts.fitToContent) {
+      this.scrollToContent(newElements, {
+        fitToContent: true,
+      });
+    }
  };

  // TODO rewrite this to paste both text & images at the same time if
@ -3308,6 +3320,10 @@ class App extends React.Component<AppProps, AppState> {
    });
  };

+  setOpenDialog = (dialogType: AppState["openDialog"]) => {
+    this.setState({ openDialog: dialogType });
+  };
+
  private setCursor = (cursor: string) => {
    setCursor(this.interactiveCanvas, cursor);
  };
@ -4258,6 +4274,7 @@ class App extends React.Component<AppProps, AppState> {
      scenePointer.x,
      scenePointer.y,
    );
+
    this.hitLinkElement = this.getElementLinkAtPosition(
      scenePointer,
      hitElement,
--- a/src/components/MermaidToExcalidraw.scss
+++ b/src/components/MermaidToExcalidraw.scss
@ -0,0 +1,221 @@
+@import "../css/variables.module";
+
+$verticalBreakpoint: 860px;
+
+.excalidraw {
+  .dialog-mermaid {
+    &-title {
+      margin-bottom: 5px;
+      margin-top: 2px;
+    }
+    &-desc {
+      font-size: 15px;
+      font-style: italic;
+      font-weight: 500;
+    }
+
+    .Modal__content .Island {
+      box-shadow: none;
+    }
+
+    @at-root .excalidraw:not(.excalidraw--mobile)#{&} {
+      padding: 1.25rem;
+
+      .Modal__content {
+        height: 100%;
+        max-height: 750px;
+
+        @media screen and (max-width: $verticalBreakpoint) {
+          height: auto;
+          // When vertical, we want the height to span whole viewport.
+          // This is also important for the children not to overflow the
+          // modal/viewport (for some reason).
+          max-height: 100%;
+        }
+
+        .Island {
+          height: 100%;
+          display: flex;
+          flex-direction: column;
+          flex: 1 1 auto;
+
+          .Dialog__content {
+            display: flex;
+            flex: 1 1 auto;
+          }
+        }
+      }
+    }
+  }
+
+  .dialog-mermaid-body {
+    width: 100%;
+    display: grid;
+    grid-template-columns: 1fr 1fr;
+    grid-template-rows: 1fr auto;
+    height: 100%;
+    column-gap: 4rem;
+
+    @media screen and (max-width: $verticalBreakpoint) {
+      flex-direction: column;
+      display: flex;
+      gap: 1rem;
+    }
+  }
+
+  .dialog-mermaid-panels {
+    display: grid;
+    width: 100%;
+    grid-template-columns: 1fr 1fr;
+    justify-content: space-between;
+    gap: 4rem;
+
+    grid-row: 1;
+    grid-column: 1 / 3;
+
+    @media screen and (max-width: $verticalBreakpoint) {
+      flex-direction: column;
+      display: flex;
+      gap: 1rem;
+    }
+
+    label {
+      font-size: 14px;
+      font-style: normal;
+      font-weight: 600;
+      margin-bottom: 4px;
+      margin-left: 4px;
+
+      @media screen and (max-width: $verticalBreakpoint) {
+        margin-top: 4px;
+      }
+    }
+
+    &-text {
+      display: flex;
+      flex-direction: column;
+
+      textarea {
+        width: 20rem;
+        height: 100%;
+        resize: none;
+        border-radius: var(--border-radius-lg);
+        border: 1px solid var(--dialog-border-color);
+        white-space: pre-wrap;
+        padding: 0.85rem;
+        box-sizing: border-box;
+        width: 100%;
+        font-family: monospace;
+
+        @media screen and (max-width: $verticalBreakpoint) {
+          width: auto;
+          height: 10rem;
+        }
+      }
+    }
+
+    &-preview-wrapper {
+      display: flex;
+      align-items: center;
+      justify-content: center;
+      padding: 0.85rem;
+      box-sizing: border-box;
+      width: 100%;
+      // acts as min-height
+      height: 200px;
+      flex-grow: 1;
+      position: relative;
+
+      background: url("data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAABAAAAAQCAYAAAAf8/9hAAAAMUlEQVQ4T2NkYGAQYcAP3uCTZhw1gGGYhAGBZIA/nYDCgBDAm9BGDWAAJyRCgLaBCAAgXwixzAS0pgAAAABJRU5ErkJggg==")
+        left center;
+      border-radius: var(--border-radius-lg);
+      border: 1px solid var(--dialog-border-color);
+
+      @media screen and (max-width: $verticalBreakpoint) {
+        // acts as min-height
+        height: 400px;
+        width: auto;
+      }
+
+      canvas {
+        max-width: 100%;
+        max-height: 100%;
+      }
+    }
+
+    &-preview-canvas-container {
+      display: flex;
+      width: 100%;
+      height: 100%;
+      align-items: center;
+      justify-content: center;
+      flex-grow: 1;
+    }
+
+    &-preview {
+      display: flex;
+      flex-direction: column;
+    }
+
+    .mermaid-error {
+      color: red;
+      font-weight: 800;
+      font-size: 30px;
+      word-break: break-word;
+      overflow: auto;
+      max-height: 100%;
+      height: 100%;
+      width: 100%;
+      text-align: center;
+      position: absolute;
+      z-index: 10;
+
+      p {
+        font-weight: 500;
+        font-family: Cascadia;
+        text-align: left;
+        white-space: pre-wrap;
+        font-size: 0.875rem;
+        padding: 0 10px;
+      }
+    }
+  }
+
+  .dialog-mermaid-buttons {
+    grid-column: 2;
+
+    .dialog-mermaid-insert {
+      &.excalidraw-button {
+        font-family: "Assistant";
+        font-weight: 600;
+        height: 2.5rem;
+        margin-top: 1em;
+        margin-bottom: 0.3em;
+        width: 7.5rem;
+        font-size: 12px;
+        color: $oc-white;
+        background-color: var(--color-primary);
+
+        &:hover {
+          background-color: var(--color-primary-darker);
+        }
+        &:active {
+          background-color: var(--color-primary-darkest);
+        }
+
+        @media screen and (max-width: $verticalBreakpoint) {
+          width: 100%;
+        }
+
+        @at-root .excalidraw.theme--dark#{&} {
+          color: var(--color-gray-100);
+        }
+      }
+
+      span {
+        padding-left: 0.5rem;
+        display: flex;
+      }
+    }
+  }
+}
--- a/src/components/MermaidToExcalidraw.tsx
+++ b/src/components/MermaidToExcalidraw.tsx
@ -0,0 +1,243 @@
+import { useState, useRef, useEffect, useDeferredValue } from "react";
+import { BinaryFiles } from "../types";
+import { useApp } from "./App";
+import { Button } from "./Button";
+import { Dialog } from "./Dialog";
+import { DEFAULT_EXPORT_PADDING, DEFAULT_FONT_SIZE } from "../constants";
+import {
+  convertToExcalidrawElements,
+  exportToCanvas,
+} from "../packages/excalidraw/index";
+import { NonDeletedExcalidrawElement } from "../element/types";
+import { canvasToBlob } from "../data/blob";
+import { ArrowRightIcon } from "./icons";
+import Spinner from "./Spinner";
+import "./MermaidToExcalidraw.scss";
+
+import { MermaidToExcalidrawResult } from "@excalidraw/mermaid-to-excalidraw/dist/interfaces";
+import type { MermaidOptions } from "@excalidraw/mermaid-to-excalidraw";
+import { t } from "../i18n";
+import Trans from "./Trans";
+
+const LOCAL_STORAGE_KEY_MERMAID_TO_EXCALIDRAW = "mermaid-to-excalidraw";
+const MERMAID_EXAMPLE =
+  "flowchart TD\n A[Christmas] -->|Get money| B(Go shopping)\n B --> C{Let me think}\n C -->|One| D[Laptop]\n C -->|Two| E[iPhone]\n C -->|Three| F[Car]";
+
+const saveMermaidDataToStorage = (data: string) => {
+  try {
+    localStorage.setItem(LOCAL_STORAGE_KEY_MERMAID_TO_EXCALIDRAW, data);
+  } catch (error: any) {
+    // Unable to access window.localStorage
+    console.error(error);
+  }
+};
+
+const importMermaidDataFromStorage = () => {
+  try {
+    const data = localStorage.getItem(LOCAL_STORAGE_KEY_MERMAID_TO_EXCALIDRAW);
+    if (data) {
+      return data;
+    }
+  } catch (error: any) {
+    // Unable to access localStorage
+    console.error(error);
+  }
+
+  return null;
+};
+
+const ErrorComp = ({ error }: { error: string }) => {
+  return (
+    <div data-testid="mermaid-error" className="mermaid-error">
+      Error! <p>{error}</p>
+    </div>
+  );
+};
+
+const MermaidToExcalidraw = () => {
+  const [mermaidToExcalidrawLib, setMermaidToExcalidrawLib] = useState<{
+    loaded: boolean;
+    api: {
+      parseMermaidToExcalidraw: (
+        defination: string,
+        options: MermaidOptions,
+      ) => Promise<MermaidToExcalidrawResult>;
+    } | null;
+  }>({ loaded: false, api: null });
+
+  const [text, setText] = useState("");
+  const deferredText = useDeferredValue(text.trim());
+  const [error, setError] = useState(null);
+
+  const canvasRef = useRef<HTMLDivElement>(null);
+  const data = useRef<{
+    elements: readonly NonDeletedExcalidrawElement[];
+    files: BinaryFiles | null;
+  }>({ elements: [], files: null });
+
+  const app = useApp();
+
+  const resetPreview = () => {
+    const canvasNode = canvasRef.current;
+
+    if (!canvasNode) {
+      return;
+    }
+    const parent = canvasNode.parentElement;
+    if (!parent) {
+      return;
+    }
+    parent.style.background = "";
+    setError(null);
+    canvasNode.replaceChildren();
+  };
+
+  useEffect(() => {
+    const loadMermaidToExcalidrawLib = async () => {
+      const api = await import(
+        /* webpackChunkName:"mermaid-to-excalidraw" */ "@excalidraw/mermaid-to-excalidraw"
+      );
+      setMermaidToExcalidrawLib({ loaded: true, api });
+    };
+    loadMermaidToExcalidrawLib();
+  }, []);
+
+  useEffect(() => {
+    const data = importMermaidDataFromStorage() || MERMAID_EXAMPLE;
+    setText(data);
+  }, []);
+
+  useEffect(() => {
+    const renderExcalidrawPreview = async () => {
+      const canvasNode = canvasRef.current;
+      const parent = canvasNode?.parentElement;
+      if (
+        !mermaidToExcalidrawLib.loaded ||
+        !canvasNode ||
+        !parent ||
+        !mermaidToExcalidrawLib.api
+      ) {
+        return;
+      }
+      if (!deferredText) {
+        resetPreview();
+        return;
+      }
+      try {
+        const { elements, files } =
+          await mermaidToExcalidrawLib.api.parseMermaidToExcalidraw(
+            deferredText,
+            {
+              fontSize: DEFAULT_FONT_SIZE,
+            },
+          );
+        setError(null);
+
+        data.current = {
+          elements: convertToExcalidrawElements(elements, {
+            regenerateIds: true,
+          }),
+          files,
+        };
+
+        const canvas = await exportToCanvas({
+          elements: data.current.elements,
+          files: data.current.files,
+          exportPadding: DEFAULT_EXPORT_PADDING,
+          maxWidthOrHeight:
+            Math.max(parent.offsetWidth, parent.offsetHeight) *
+            window.devicePixelRatio,
+        });
+        // if converting to blob fails, there's some problem that will
+        // likely prevent preview and export (e.g. canvas too big)
+        await canvasToBlob(canvas);
+        parent.style.background = "var(--default-bg-color)";
+        canvasNode.replaceChildren(canvas);
+      } catch (e: any) {
+        parent.style.background = "var(--default-bg-color)";
+        if (deferredText) {
+          setError(e.message);
+        }
+      }
+    };
+    renderExcalidrawPreview();
+  }, [deferredText, mermaidToExcalidrawLib]);
+
+  const onClose = () => {
+    app.setOpenDialog(null);
+    saveMermaidDataToStorage(text);
+  };
+
+  const onSelect = () => {
+    const { elements: newElements, files } = data.current;
+    app.addElementsFromPasteOrLibrary({
+      elements: newElements,
+      files,
+      position: "center",
+      fitToContent: true,
+    });
+    onClose();
+  };
+
+  return (
+    <Dialog
+      className="dialog-mermaid"
+      onCloseRequest={onClose}
+      size={1200}
+      title={
+        <>
+          <p className="dialog-mermaid-title">{t("mermaid.title")}</p>
+          <span className="dialog-mermaid-desc">
+            <Trans
+              i18nKey="mermaid.description"
+              flowchartLink={(el) => (
+                <a href="https://mermaid.js.org/syntax/flowchart.html">{el}</a>
+              )}
+              sequenceLink={(el) => (
+                <a href="https://mermaid.js.org/syntax/sequenceDiagram.html">
+                  {el}
+                </a>
+              )}
+            />
+            <br />
+          </span>
+        </>
+      }
+    >
+      <div className="dialog-mermaid-body">
+        <div className="dialog-mermaid-panels">
+          <div className="dialog-mermaid-panels-text">
+            <label>{t("mermaid.syntax")}</label>
+
+            <textarea
+              onChange={(event) => setText(event.target.value)}
+              value={text}
+            />
+          </div>
+          <div className="dialog-mermaid-panels-preview">
+            <label>{t("mermaid.preview")}</label>
+            <div className="dialog-mermaid-panels-preview-wrapper">
+              {error && <ErrorComp error={error} />}
+              {mermaidToExcalidrawLib.loaded ? (
+                <div
+                  ref={canvasRef}
+                  style={{ opacity: error ? "0.15" : 1 }}
+                  className="dialog-mermaid-panels-preview-canvas-container"
+                />
+              ) : (
+                <Spinner size="2rem" />
+              )}
+            </div>
+          </div>
+        </div>
+        <div className="dialog-mermaid-buttons">
+          <Button className="dialog-mermaid-insert" onSelect={onSelect}>
+            {t("mermaid.button")}
+            <span>{ArrowRightIcon}</span>
+          </Button>
+        </div>
+      </div>
+    </Dialog>
+  );
+};
+export default MermaidToExcalidraw;
--- a/src/components/ToolIcon.scss
+++ b/src/components/ToolIcon.scss
@ -160,6 +160,15 @@
      width: var(--lg-button-size);
      height: var(--lg-button-size);

+      @media screen and (max-width: 450px) {
+        width: 1.8rem;
+        height: 1.8rem;
+      }
+      @media screen and (max-width: 379px) {
+        width: 1.5rem;
+        height: 1.5rem;
+      }
+
      svg {
        width: var(--lg-icon-size);
        height: var(--lg-icon-size);
--- a/src/components/Toolbar.scss
+++ b/src/components/Toolbar.scss
@ -16,6 +16,10 @@
      align-self: center;
      background-color: var(--default-border-color);
      margin: 0 0.25rem;
+
+      @include isMobile {
+        margin: 0;
+      }
    }
  }

@ -41,5 +45,6 @@
    margin-top: 0.375rem;
    right: 0;
    min-width: 11.875rem;
+    z-index: 1;
  }
 }
--- a/src/components/dropdownMenu/DropdownMenu.scss
+++ b/src/components/dropdownMenu/DropdownMenu.scss
@ -7,8 +7,6 @@
    margin-top: 0.25rem;

    &--mobile {
-      bottom: 55px;
-      top: auto;
      left: 0;
      width: 100%;
      row-gap: 0.75rem;
--- a/src/components/icons.tsx
+++ b/src/components/icons.tsx
@ -1654,6 +1654,22 @@ export const frameToolIcon = createIcon(
  tablerIconProps,
 );

+export const mermaidLogoIcon = createIcon(
+  <path
+    fill="currentColor"
+    d="M407.48,111.18C335.587,108.103 269.573,152.338 245.08,220C220.587,152.338 154.573,108.103 82.68,111.18C80.285,168.229 107.577,222.632 154.74,254.82C178.908,271.419 193.35,298.951 193.27,328.27L193.27,379.13L296.9,379.13L296.9,328.27C296.816,298.953 311.255,271.42 335.42,254.82C382.596,222.644 409.892,168.233 407.48,111.18Z"
+  />,
+);
+
+export const ArrowRightIcon = createIcon(
+  <g strokeWidth="1.25">
+    <path d="M4.16602 10H15.8327" />
+    <path d="M12.5 13.3333L15.8333 10" />
+    <path d="M12.5 6.66666L15.8333 9.99999" />
+  </g>,
+  modifiedTablerIconProps,
+);
+
 export const laserPointerToolIcon = createIcon(
  <g
    fill="none"