Hack 1Password 7 to respond to command+backslash *only* in web browser

This Karabiner modification works around 1Password 7's global takeover
of the command+backslash keyboard shortcut [1].

To make this work, open 1Password 7's preferences, and change the "Fill
Login or Show 1Password" shortcut from ⌘\ (command+backslash) to
⌃⌥⇧⌘\ (control+option+shift+command+backslash). In other words, we're
changing the keyboard shortcut to something you're unlikely to ever
intentionally use.

Then, enable this rule in Karabiner Elements. With this rule enabled,
whenever you hit ⌘\ in Chrome, Firefox, or Safari, Karabiner Elements
will translate that keystroke to ⌃⌥⇧⌘\, which will trigger 1Password's
"Fill Login or Show 1Password" shortcut.

[1]: https://1password.community/discussion/91176/command-backslash-is-overriding-the-same-keyboard-shortcut-action-in-other-non-browser-application

Author: jasonrudolph

Diff for: karabiner/assets/complex_modifications/1password-command-backslash-triggers-only-in-browsers.json

@@ -0,0 +1,42 @@
+{
+  "title": "[1Password] Configure command+\\ to open 1Password *only* in browsers",
+  "rules": [
+    {
+      "manipulators": [
+        {
+          "conditions": [
+            {
+              "bundle_identifiers": [
+                "^com\\.google\\.Chrome$",
+                "^com\\.apple\\.Safari$",
+                "^org\\.mozilla\\.firefox$"
+              ],
+              "type": "frontmost_application_if"
+            }
+          ],
+          "description": "[1Password] Use command+\\ to trigger 1Password *only* in browsers. To use this, configure 1Password's \"Fill Login\" keyboard shortcut to ⌃⌥⇧⌘\\ (control+option+shift+command+backslash).",
+          "from": {
+            "key_code": "backslash",
+            "modifiers": {
+              "mandatory": [
+                "command"
+              ]
+            }
+          },
+          "to": [
+            {
+              "key_code": "backslash",
+              "modifiers": [
+                "left_command",
+                "left_shift",
+                "left_control",
+                "left_option"
+              ]
+            }
+          ],
+          "type": "basic"
+        }
+      ]
+    }
+  ]
+}