Also replace $FILE and % in shortcut

Signed-off-by: Sebastian Ramacher <sebastian+dev@ramacher.at>

zathura/config.c

@@ -467,6 +467,7 @@ config_load_default(zathura_t* zathura)
   girara_shortcut_mapping_add(gsession, "bisect",            sc_bisect);
   girara_shortcut_mapping_add(gsession, "change_mode",       sc_change_mode);
   girara_shortcut_mapping_add(gsession, "display_link",      sc_display_link);
+  girara_shortcut_mapping_add(gsession, "exec",              sc_exec);
   girara_shortcut_mapping_add(gsession, "focus_inputbar",    sc_focus_inputbar);
   girara_shortcut_mapping_add(gsession, "follow",            sc_follow);
   girara_shortcut_mapping_add(gsession, "goto",              sc_goto);

zathura/shortcuts.c

@@ -1419,3 +1419,40 @@ sc_zoom(girara_session_t* session, girara_argument_t* argument, girara_event_t*
 
   return false;
 }
+
+bool
+sc_exec(girara_session_t* session, girara_argument_t* argument, girara_event_t* event, unsigned int t)
+{
+  g_return_val_if_fail(session != NULL, false);
+  g_return_val_if_fail(session->global.data != NULL, false);
+  zathura_t* zathura = session->global.data;
+
+  if (argument == NULL || argument->data == NULL) {
+    return false;
+  }
+
+  if (zathura->document != NULL) {
+    const char* path = zathura_document_get_path(zathura->document);
+
+    girara_argument_t new_argument = *argument;
+
+    char* r = girara_replace_substring(argument->data, "$FILE", path);
+    if (r == NULL) {
+      return false;
+    }
+
+    char* s = girara_replace_substring(r, "%", path);
+    g_free(r);
+
+    if (s == NULL) {
+      return false;
+    }
+
+    new_argument.data = s;
+    const bool ret = girara_sc_exec(session, &new_argument, event, t);
+    g_free(s);
+    return ret;
+  }
+
+  return girara_sc_exec(session, argument, event, t);
+}

zathura/shortcuts.h

@@ -281,4 +281,15 @@ bool sc_quit(girara_session_t* session, girara_argument_t* argument, girara_even
  */
 bool sc_zoom(girara_session_t* session, girara_argument_t* argument, girara_event_t* event, unsigned int t);
 
+/**
+ * Run external command.
+ *
+ * @param session The used girara session
+ * @param argument The used argument
+ * @param event Girara event
+ * @param t Number of executions
+ * @return true if no error occurred otherwise false
+ */
+bool sc_exec(girara_session_t* session, girara_argument_t* argument, girara_event_t* event, unsigned int t);
+
 #endif // SHORTCUTS_H