From 0dfc578d15843957905f41d764101927f556251a Mon Sep 17 00:00:00 2001
From: LakeGH <lake@peardeck.com>
Date: Thu, 14 Nov 2019 12:55:55 -0500
Subject: [PATCH 1/4] Fix "onlyInvert" inversionAttempts option.

`shouldInvert` should also be true if `options.inversionAttempts` equals "onlyInvert".
---
 src/index.ts | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/index.ts b/src/index.ts
index 65116049..7843e2ef 100644
--- a/src/index.ts
+++ b/src/index.ts
@@ -69,7 +69,7 @@ function jsQR(data: Uint8ClampedArray, width: number, height: number, providedOp
     (options as any)[opt] = (providedOptions as any)[opt] || (options as any)[opt];
   });
 
-  const shouldInvert = options.inversionAttempts === "attemptBoth" || options.inversionAttempts === "invertFirst";
+  const shouldInvert = options.inversionAttempts === "attemptBoth" || options.inversionAttempts === "invertFirst" || options.inversionAttempts === "onlyInvert";
   const tryInvertedFirst = options.inversionAttempts === "onlyInvert" || options.inversionAttempts === "invertFirst";
   const {binarized, inverted} = binarize(data, width, height, shouldInvert);
   let result = scan(tryInvertedFirst ? inverted : binarized);

From 4f3fef8c6e180a5534b9df4e730b7a9059f9e378 Mon Sep 17 00:00:00 2001
From: LakeGH <lake@peardeck.com>
Date: Thu, 14 Nov 2019 13:12:12 -0500
Subject: [PATCH 2/4] Change order of inversionAttempts check for tslint

---
 src/index.ts | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/src/index.ts b/src/index.ts
index 7843e2ef..507bf92d 100644
--- a/src/index.ts
+++ b/src/index.ts
@@ -69,8 +69,9 @@ function jsQR(data: Uint8ClampedArray, width: number, height: number, providedOp
     (options as any)[opt] = (providedOptions as any)[opt] || (options as any)[opt];
   });
 
-  const shouldInvert = options.inversionAttempts === "attemptBoth" || options.inversionAttempts === "invertFirst" || options.inversionAttempts === "onlyInvert";
   const tryInvertedFirst = options.inversionAttempts === "onlyInvert" || options.inversionAttempts === "invertFirst";
+  const shouldInvert = options.inversionAttempts === "attemptBoth" || tryInvertedFirst;
+  
   const {binarized, inverted} = binarize(data, width, height, shouldInvert);
   let result = scan(tryInvertedFirst ? inverted : binarized);
   if (!result && (options.inversionAttempts === "attemptBoth" || options.inversionAttempts === "invertFirst")) {

From 13843e5ac62a813afaf4b8565742e2d71410f280 Mon Sep 17 00:00:00 2001
From: LakeGH <lake@peardeck.com>
Date: Thu, 14 Nov 2019 13:14:50 -0500
Subject: [PATCH 3/4] Remove trailing whitespace for tslint

---
 src/index.ts | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/index.ts b/src/index.ts
index 507bf92d..c0336971 100644
--- a/src/index.ts
+++ b/src/index.ts
@@ -71,7 +71,7 @@ function jsQR(data: Uint8ClampedArray, width: number, height: number, providedOp
 
   const tryInvertedFirst = options.inversionAttempts === "onlyInvert" || options.inversionAttempts === "invertFirst";
   const shouldInvert = options.inversionAttempts === "attemptBoth" || tryInvertedFirst;
-  
+
   const {binarized, inverted} = binarize(data, width, height, shouldInvert);
   let result = scan(tryInvertedFirst ? inverted : binarized);
   if (!result && (options.inversionAttempts === "attemptBoth" || options.inversionAttempts === "invertFirst")) {

From e7f282af2c04a7ff237773ae3c26540f15b2b6f0 Mon Sep 17 00:00:00 2001
From: LakeGH <lake@peardeck.com>
Date: Thu, 14 Nov 2019 13:29:15 -0500
Subject: [PATCH 4/4] Removing unneeded whitespace.

---
 src/index.ts | 1 -
 1 file changed, 1 deletion(-)

diff --git a/src/index.ts b/src/index.ts
index c0336971..71bd6eb5 100644
--- a/src/index.ts
+++ b/src/index.ts
@@ -71,7 +71,6 @@ function jsQR(data: Uint8ClampedArray, width: number, height: number, providedOp
 
   const tryInvertedFirst = options.inversionAttempts === "onlyInvert" || options.inversionAttempts === "invertFirst";
   const shouldInvert = options.inversionAttempts === "attemptBoth" || tryInvertedFirst;
-
   const {binarized, inverted} = binarize(data, width, height, shouldInvert);
   let result = scan(tryInvertedFirst ? inverted : binarized);
   if (!result && (options.inversionAttempts === "attemptBoth" || options.inversionAttempts === "invertFirst")) {