ctrl + c to copy

ext/fg/js/display-frame.js

@@ -51,6 +51,10 @@ window.displayFrame = new class extends Display {
         window.parent.postMessage('popupClose', '*');
     }
 
+    selectionCopy() {
+        window.parent.postMessage('selectionCopy', '*');
+    }
+
     showOrphaned() {
         $('#content').hide();
         $('#orphan').show();
@@ -77,4 +81,27 @@ window.displayFrame = new class extends Display {
             handler(params);
         }
     }
+
+    onKeyDown(e) {
+        if (super.onKeyDown(e)) {
+            return true;
+        }
+
+        const handlers = {
+            67: /* c */ () => {
+                if (e.ctrlKey) {
+                    this.selectionCopy();
+                    return true;
+                }
+            }
+        };
+
+        const handler = handlers[e.keyCode];
+        if (handler && handler()) {
+            e.preventDefault();
+            return true;
+        }
+
+        return false;
+    }
 };

ext/fg/js/driver.js

@@ -106,6 +106,10 @@ window.driver = new class {
         const handlers = {
             popupClose: () => {
                 this.searchClear();
+            },
+
+            selectionCopy: () => {
+                document.execCommand('copy');
             }
         };
 

ext/manifest.json

@@ -29,7 +29,8 @@
     },
     "permissions": [
         "<all_urls>",
-        "storage"
+        "storage",
+        "clipboardWrite"
     ],
     "commands": {
         "toggle": {

ext/mixed/js/display.js

@@ -301,7 +301,10 @@ class Display {
         const handler = handlers[e.keyCode];
         if (handler && handler()) {
             e.preventDefault();
+            return true;
         }
+
+        return false;
     }
 
     sourceBack() {