Handle Ctrl+/ in the application instead of via Electron

To prevent 'select all' on Linux.

js/background.js

@@ -655,6 +655,15 @@
       // NAVIGATION
 
       // Show keyboard shortcuts - handled by Electron-managed keyboard shortcuts
+      // However, on linux Ctrl+/ selects all text, so we prevent that
+      if (ctrlOrCommand && key === '/') {
+        window.showKeyboardShortcuts();
+
+        event.stopPropagation();
+        event.preventDefault();
+
+        return;
+      }
 
       // Navigate by section
       if (ctrlOrCommand && !shiftKey && (key === 't' || key === 'T')) {

ts/components/MainHeader.tsx

@@ -217,7 +217,18 @@ export class MainHeader extends React.Component<PropsType, StateType> {
       searchTerm,
     } = this.props;
 
-    if (event.key !== 'Escape') {
+    const { ctrlKey, metaKey, key } = event;
+    const ctrlOrCommand = ctrlKey || metaKey;
+
+    // On linux, this keyboard combination selects all text
+    if (ctrlOrCommand && key === '/') {
+      event.preventDefault();
+      event.stopPropagation();
+
+      return;
+    }
+
+    if (key !== 'Escape') {
       return;
     }
 

ts/util/lint/exceptions.json

@@ -7560,7 +7560,7 @@
     "rule": "React-createRef",
     "path": "ts/components/MainHeader.js",
     "line": "        this.inputRef = react_1.default.createRef();",
-    "lineNumber": 126,
+    "lineNumber": 134,
     "reasonCategory": "usageTrusted",
     "updated": "2019-08-09T21:17:57.798Z",
     "reasonDetail": "Used only to set focus"