Dynamic plugin size calculation, and cap the height to a safe value (#98)

* dynamic size

* fixes

* fixes

* fix dynamic size

* add changelog

---------

Co-authored-by: Jordi Sala Morales <jordism91@gmail.com>

.changeset/shaggy-dryers-guess.md

@@ -0,0 +1,5 @@
+---
+"penpot-exporter": patch
+---
+
+Recalculate better the plugin height and limit it to a safer value so it does not get out of the screen

package.json

@@ -29,27 +29,27 @@
     "react-hook-form": "^7.51",
     "romans": "^2.0",
     "slugify": "^1.6",
-    "svg-path-parser": "^1.1"
+    "svg-path-parser": "^1.1",
+    "use-resize-observer": "^9.1"
   },
   "devDependencies": {
     "@changesets/changelog-github": "^0.5",
     "@changesets/cli": "^2.27",
     "@figma/eslint-plugin-figma-plugins": "^0.15",
-    "@figma/plugin-typings": "^1.92",
+    "@figma/plugin-typings": "^1.93",
     "@preact/preset-vite": "^2.8",
     "@trivago/prettier-plugin-sort-imports": "^4.3",
     "@types/svg-path-parser": "^1.1",
     "@typescript-eslint/eslint-plugin": "^7.8",
     "@typescript-eslint/parser": "^7.8",
-    "@vitejs/plugin-react-swc": "^3.6",
     "concurrently": "^8.2",
-    "esbuild": "^0.20",
+    "esbuild": "^0.21",
     "eslint": "^8.57",
     "eslint-config-prettier": "^9.1",
     "eslint-plugin-prettier": "^5.1",
     "eslint-plugin-react": "^7.34",
     "prettier": "^3.2",
-    "stylelint": "^16.4",
+    "stylelint": "^16.5",
     "stylelint-config-standard": "^36.0",
     "typescript": "^5.4",
     "vite": "^5.2",

plugin-src/code.ts

@@ -1,9 +1,11 @@
 import { findAllTextNodes } from './findAllTextnodes';
 import { handleExportMessage } from './handleExportMessage';
-import { BASE_WIDTH, LOADING_HEIGHT } from './pluginSizes';
 import { registerChange } from './registerChange';
 
-figma.showUI(__html__, { themeColors: true, width: BASE_WIDTH, height: LOADING_HEIGHT });
+const BASE_HEIGHT = 135;
+const BASE_WIDTH = 290;
+
+figma.showUI(__html__, { themeColors: true, width: BASE_WIDTH, height: BASE_HEIGHT });
 
 figma.ui.onmessage = message => {
   if (message.type === 'ready') {
@@ -21,6 +23,10 @@ figma.ui.onmessage = message => {
   if (message.type === 'reload') {
     findAllTextNodes();
   }
+
+  if (message.type === 'resize') {
+    figma.ui.resize(BASE_WIDTH, message.height);
+  }
 };
 
 figma.on('currentpagechange', () => {

plugin-src/findAllTextnodes.ts

@@ -1,9 +1,3 @@
-import {
-  BASE_WIDTH,
-  MISSING_FONTS_TEXT_HEIGHT,
-  MISSING_SINGLE_FONT_HEIGHT,
-  NORMAL_HEIGHT
-} from './pluginSizes';
 import { registerChange } from './registerChange';
 import { isGoogleFont } from './translators/text/font/gfonts';
 import { isLocalFont } from './translators/text/font/local';
@@ -34,10 +28,5 @@ export const findAllTextNodes = async () => {
     data: Array.from(fonts)
   });
 
-  const newHeight =
-    NORMAL_HEIGHT +
-    (fonts.size > 0 ? MISSING_FONTS_TEXT_HEIGHT + fonts.size * MISSING_SINGLE_FONT_HEIGHT : 0);
-
-  figma.ui.resize(BASE_WIDTH, newHeight);
   figma.currentPage.once('nodechange', registerChange);
 };

plugin-src/pluginSizes.ts

@@ -1,8 +0,0 @@
-export const LOADING_HEIGHT = 130;
-export const NORMAL_HEIGHT = LOADING_HEIGHT + 5;
-export const BASE_WIDTH = 290;
-
-export const MISSING_FONTS_TEXT_HEIGHT = 195;
-export const MISSING_SINGLE_FONT_HEIGHT = 65;
-
-export const NEEDS_RELOAD_TEXT_HEIGHT = 90;

plugin-src/registerChange.ts

@@ -1,6 +1,3 @@
-import { BASE_WIDTH, NEEDS_RELOAD_TEXT_HEIGHT, NORMAL_HEIGHT } from './pluginSizes';
-
 export const registerChange = () => {
   figma.ui.postMessage({ type: 'CHANGES_DETECTED' });
-  figma.ui.resize(BASE_WIDTH, NORMAL_HEIGHT + NEEDS_RELOAD_TEXT_HEIGHT);
 };

ui-src/App.tsx

@@ -1,11 +1,28 @@
+import { useEffect } from 'react';
+import useResizeObserver from 'use-resize-observer';
+
 import Penpot from '@ui/assets/penpot.svg?react';
 import { PenpotExporter } from '@ui/components/PenpotExporter';
 import { Stack } from '@ui/components/Stack';
 
 import { Wrapper } from './components/Wrapper/Wrapper';
 
-export const App = () => (
+// Safe default value to avoid overflowing from the screen
-  <Wrapper>
+const MAX_HEIGHT = 800;
+
+export const App = () => {
+  const { ref, height } = useResizeObserver<HTMLDivElement>({ box: 'border-box' });
+
+  useEffect(() => {
+    if (height === undefined) return;
+
+    const capHeight = Math.min(height, MAX_HEIGHT);
+
+    parent.postMessage({ pluginMessage: { type: 'resize', height: capHeight } }, '*');
+  }, [height]);
+
+  return (
+    <Wrapper ref={ref} overflowing={(height ?? 0) > MAX_HEIGHT}>
       <Stack space="medium">
         <Penpot
           style={{
@@ -19,3 +36,4 @@ export const App = () => (
       </Stack>
     </Wrapper>
   );
+};

ui-src/components/Stack/Stack.module.css

@@ -6,12 +6,12 @@
   flex-direction: var(--direction);
   gap: var(--spacing);
 
+  .stack-row {
+    --direction: row;
+
     & > * {
       flex: 1;
     }
-
-  .stack-row {
-    --direction: row;
   }
 
   .stack-small {

ui-src/components/Wrapper/Wrapper.module.css

@@ -1,3 +1,7 @@
 .wrapper {
-  margin: 1.5rem 1rem 0;
+  padding: 1.5rem 1rem 1rem;
+
+  .wrapper-overflow {
+    /* Empty class used to detect overflow on the body */
+  }
 }

ui-src/components/Wrapper/Wrapper.tsx

@@ -1,15 +1,27 @@
-import { CSSProperties, PropsWithChildren } from 'react';
+import classNames from 'classnames';
+import { CSSProperties, PropsWithChildren, forwardRef } from 'react';
 
 import styles from './Wrapper.module.css';
 
 type WrapperProps = PropsWithChildren & {
   style?: CSSProperties;
+  overflowing?: boolean;
 };
 
-export const Wrapper = ({ style, children }: WrapperProps) => {
+const Wrapper = forwardRef<HTMLDivElement, WrapperProps>(
+  ({ style, overflowing = false, children }: WrapperProps, ref) => {
     return (
-    <div className={styles.wrapper} style={style}>
+      <div
+        ref={ref}
+        className={classNames({ [styles.wrapper]: true, [styles.wrapperOverflow]: overflowing })}
+        style={style}
+      >
         {children}
       </div>
     );
-};
+  }
+);
+
+Wrapper.displayName = 'Wrapper';
+
+export { Wrapper };

ui-src/main.css

@@ -1,40 +1,3 @@
-*,
+body :not:has(.wrapper-overflow) {
-*::before,
+  overflow-y: hidden;
-*::after {
-  box-sizing: border-box;
-}
-
-* {
-  margin: 0;
-}
-
-body {
-  line-height: 1.5;
-  -webkit-font-smoothing: antialiased;
-}
-
-img,
-picture,
-video,
-canvas,
-svg {
-  display: block;
-  max-width: 100%;
-}
-
-input,
-button,
-textarea,
-select {
-  font: inherit;
-}
-
-p,
-h1,
-h2,
-h3,
-h4,
-h5,
-h6 {
-  overflow-wrap: break-word;
 }

ui-src/main.tsx

@@ -4,6 +4,7 @@ import { createRoot } from 'react-dom/client';
 
 import { App } from './App';
 import './main.css';
+import './reset.css';
 
 createRoot(document.getElementById('root') as HTMLElement).render(
   <StrictMode>

ui-src/reset.css

@@ -0,0 +1,40 @@
+*,
+*::before,
+*::after {
+  box-sizing: border-box;
+}
+
+* {
+  margin: 0;
+}
+
+body {
+  line-height: 1.5;
+  -webkit-font-smoothing: antialiased;
+}
+
+img,
+picture,
+video,
+canvas,
+svg {
+  display: block;
+  max-width: 100%;
+}
+
+input,
+button,
+textarea,
+select {
+  font: inherit;
+}
+
+p,
+h1,
+h2,
+h3,
+h4,
+h5,
+h6 {
+  overflow-wrap: break-word;
+}