Setup changelog for v2.3.8 + misc changes

Misc changes:

1.   Code cleanup
2.  Add strings for a hardcoded string.

Author: mebjas

changelog.md

@@ -1,3 +1,7 @@
+### Version 2.3.8
+ - `Scanner Paused` color tone changes.
+ - Misc code refactor.
+
 ### Version 2.3.7
 -   Fix QR code scanning error.
 

src/html5-qrcode-scanner.ts

@@ -493,7 +493,6 @@ export class Html5QrcodeScanner {
     }
 
     private setupInitialDashboard(dashboard: HTMLElement) {
-        const $this = this;
         this.createSection(dashboard);
         this.createSectionControlPanel();
         if (this.scanTypeSelector.hasMoreThanOneScanType()) {
@@ -636,7 +635,6 @@ export class Html5QrcodeScanner {
     }
 
     private createSectionControlPanel() {
-        const $this = this;
         const section = document.getElementById(this.getDashboardSectionId())!;
         const sectionControlPanel = document.createElement("div");
         section.appendChild(sectionControlPanel);

src/html5-qrcode.ts

@@ -1096,12 +1096,13 @@ export class Html5Qrcode {
     // TODO(mebjas): Convert this to a standard message viewer.
     private createScannerPausedUiElement(rootElement: HTMLElement) {
         const scannerPausedUiElement = document.createElement("div");
-        scannerPausedUiElement.innerText = "Scanner paused";
+        scannerPausedUiElement.innerText = Html5QrcodeStrings.scannerPaused();
         scannerPausedUiElement.style.display = "none";
         scannerPausedUiElement.style.position = "absolute";
         scannerPausedUiElement.style.top = "0px";
         scannerPausedUiElement.style.zIndex = "1";
-        scannerPausedUiElement.style.background = "yellow";
+        scannerPausedUiElement.style.background = "rgba(9, 9, 9, 0.46)";
+        scannerPausedUiElement.style.color = "#FFECEC";
         scannerPausedUiElement.style.textAlign = "center";
         scannerPausedUiElement.style.width = "100%";
         rootElement.appendChild(scannerPausedUiElement);

src/strings.ts

@@ -41,6 +41,10 @@ export class Html5QrcodeStrings {
         return "Camera access is only supported in secure context like https "
         + "or localhost.";
     }
+
+    public static scannerPaused(): string {
+        return "Scanner paused";
+    }
 }
 
 /**