Splitting PointerTracker into its own project

src/components/Options/style.scss

@@ -54,5 +54,4 @@ $horizontalPadding: 15px;
 .options-scroller {
   overflow-x: hidden;
   overflow-y: auto;
-  -webkit-overflow-scrolling: touch;
 }

src/components/Output/index.tsx

@@ -177,17 +177,6 @@ export default class Output extends Component<Props, State> {
     const clonedEvent = new (event.constructor as typeof Event)(event.type, event);
     this.retargetedEvents.add(clonedEvent);
     this.pinchZoomLeft.dispatchEvent(clonedEvent);
-
-    // Unfocus any active element on touchend. This fixes an issue on (at least) Android Chrome,
-    // where the software keyboard is hidden, but the input remains focused, then after interaction
-    // with this element the keyboard reappears for NO GOOD REASON. Thanks Android.
-    if (
-      event.type === 'touchend' &&
-      document.activeElement &&
-      document.activeElement instanceof HTMLElement
-    ) {
-      document.activeElement.blur();
-    }
   }
 
   render(

src/components/compress/style.scss

@@ -32,7 +32,7 @@
   }
 
   @media (min-width: 860px) {
-    max-height: calc(100% - 40px);
+    max-height: 100%;
   }
 }
 

src/components/intro/style.scss

@@ -19,6 +19,7 @@
 }
 
 .intro {
+  composes: abs-fill from '../../lib/util.scss';
   display: grid;
   grid-template-rows: 1fr min-content;
   align-items: center;
@@ -28,9 +29,6 @@
   -webkit-overflow-scrolling: touch;
   overflow: auto;
   padding: 20px 0 0;
-  height: 100%;
-  box-sizing: border-box;
-  overscroll-behavior: contain;
 }
 
 .logo-container {

src/lib/util.ts

@@ -57,32 +57,16 @@ export async function canvasEncode(data: ImageData, type: string, quality?: numb
   return blob;
 }
 
-async function decodeImage(url: string): Promise<HTMLImageElement> {
-  const img = new Image();
-  img.decoding = 'async';
-  img.src = url;
-  const loaded = new Promise((resolve, reject) => {
-    img.onload = () => resolve();
-    img.onerror = () => reject(Error('Image loading error'));
-  });
-
-  if (img.decode) {
-    // Nice off-thread way supported in Safari/Chrome.
-    // Safari throws on decode if the source is SVG.
-    // https://bugs.webkit.org/show_bug.cgi?id=188347
-    await img.decode().catch(() => null);
-  }
-
-  // Always await loaded, as we may have bailed due to the Safari bug above.
-  await loaded;
-  return img;
-}
-
 /**
  * Attempts to load the given URL as an image.
  */
-export function canDecodeImage(url: string): Promise<boolean> {
+export function canDecodeImage(data: string): Promise<boolean> {
-  return decodeImage(url).then(() => true, () => false);
+  return new Promise((resolve) => {
+    const img = document.createElement('img');
+    img.src = data;
+    img.onload = _ => resolve(true);
+    img.onerror = _ => resolve(false);
+  });
 }
 
 export function blobToArrayBuffer(blob: Blob): Promise<ArrayBuffer> {
@@ -124,7 +108,24 @@ export async function blobToImg(blob: Blob): Promise<HTMLImageElement> {
   const url = URL.createObjectURL(blob);
 
   try {
-    return await decodeImage(url);
+    const img = new Image();
+    img.decoding = 'async';
+    img.src = url;
+    const loaded = new Promise((resolve, reject) => {
+      img.onload = () => resolve();
+      img.onerror = () => reject(Error('Image loading error'));
+    });
+
+    if (img.decode) {
+      // Nice off-thread way supported in Safari/Chrome.
+      // Safari throws on decode if the source is SVG.
+      // https://bugs.webkit.org/show_bug.cgi?id=188347
+      await img.decode().catch(() => null);
+    }
+
+    // Always await loaded, as we may have bailed due to the Safari bug above.
+    await loaded;
+    return img;
   } finally {
     URL.revokeObjectURL(url);
   }

src/style/index.scss

@@ -2,6 +2,7 @@
 
 html, body {
   height: 100%;
+  width: 100%;
   padding: 0;
   margin: 0;
   font: 12px/1.3 system-ui, -apple-system, BlinkMacSystemFont, Roboto, Helvetica, sans-serif;