fix canvas width and selection 'x' coordinate

kabuspl · Dec 11, 2022 · 0a8fb93 · 0a8fb93
1 parent 550735a
commit 0a8fb93
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Showing 2 changed files with 3 additions and 3 deletions.
diff --git a/bg.js b/bg.js
@@ -44,8 +44,8 @@ function searchBlob (img, msg) {
 
     imgEl.onload = () => {
         if (msg) {
-            width = msg.x2 - msg.x1;
-            height = msg.y2 - msg.y1;
+            width = Math.abs(msg.x2 - msg.x1);
+            height = Math.abs(msg.y2 - msg.y1);
             x -= msg.x1;
             y -= msg.y1;
         } else {

diff --git a/content.js b/content.js
@@ -70,7 +70,7 @@ cont.addEventListener("touchmove", e => {
 function stopSelection(x,y) {
     down = false;
     let x1, y1, x2, y2;
-    if (y - startX < 0) {
+    if (x - startX < 0) {
         x1 = x;
         x2 = startX;
     } else {