Calling Html5QrcodeScanner#clear() will clear the entire UI

Calling `Html5QrcodeScanner#clear()` will also clear the UI rendered due to image based scan. This should address [issue#193](#193)

README.md

@@ -647,7 +647,7 @@ class Html5QrcodeScanner {
    */
   getState(): Html5QrcodeScannerState;
 
-  /** Removes the QR Code scanner. */
+  /** Removes the QR Code scanner UI. */
   clear(): Promise<void>  {}
 }
 ```

changelog.md

@@ -1,13 +1,8 @@
 ### Version 2.1.5
 
--   Changed behavior from throwing error in case `qrbox.width` or `qrbox` is larger
-    than the width of the root element. In such cases the dimension will automatically
-    be truncated to the size of root element and will throw a warning based on verbosity
-    settings. This should address [issue#357](https://github.com/mebjas/html5-qrcode/issues/357)
--   If `qrbox` is not set in config for either `Html5QrcodeScanner` or `Html5Qrcode`
-    the scanning box will default to the size of video stream. From UI perspective
-    there will be no shaded QR scanning box visible to user. This should resolve
-    [Issue#343](https://github.com/mebjas/html5-qrcode/issues/343)
+-   Changed behavior from throwing error in case `qrbox.width` or `qrbox` is larger than the width of the root element. In such cases the dimension will automatically be truncated to the size of root element and will throw a warning based on verbosity settings. This should address [issue#357](https://github.com/mebjas/html5-qrcode/issues/357)
+-   If `qrbox` is not set in config for either `Html5QrcodeScanner` or `Html5Qrcode` the scanning box will default to the size of video stream. From UI perspective there will be no shaded QR scanning box visible to user. This should resolve [Issue#343](https://github.com/mebjas/html5-qrcode/issues/343).
+-   Calling `Html5QrcodeScanner#clear()` will also clear the UI rendered due to image based scan. This should address [issue#193](https://github.com/mebjas/html5-qrcode/issues/193)
 
 ### Version 2.1.4
 

src/html5-qrcode-scanner.ts

@@ -294,6 +294,10 @@ export class Html5QrcodeScanner {
                         }
                         reject(error);
                     });
+                } else {
+                    // Assuming file based scan was ongoing.
+                    this.html5Qrcode.clear();
+                    emptyHtmlContainer();
                 }
             });
         }