config: add WM_WINDOW_ROLE window criteria

jay-config/src/_private.rs

@@ -126,4 +126,5 @@ pub enum WindowCriterionStringField {
     Tag,
     XClass,
     XInstance,
+    XRole,
 }

jay-config/src/_private/client.rs

@@ -1669,6 +1669,8 @@ impl ConfigClient {
             WindowCriterion::XClassRegex(t) => string!(t, XClass, true),
             WindowCriterion::XInstance(t) => string!(t, XInstance, false),
             WindowCriterion::XInstanceRegex(t) => string!(t, XInstance, true),
+            WindowCriterion::XRole(t) => string!(t, XRole, false),
+            WindowCriterion::XRoleRegex(t) => string!(t, XRole, true),
         };
         let res = self.send_with_response(&ClientMessage::CreateWindowMatcher { criterion });
         get_response!(

jay-config/src/window.rs

@@ -272,6 +272,10 @@ pub enum WindowCriterion<'a> {
     XInstance(&'a str),
     /// Matches the X instance of the window with a regular expression.
     XInstanceRegex(&'a str),
+    /// Matches the X role of the window verbatim.
+    XRole(&'a str),
+    /// Matches the X role of the window with a regular expression.
+    XRoleRegex(&'a str),
 }
 
 impl WindowCriterion<'_> {