feat(github): offline label (#1825)

Adds `format-offline` and `label-offline`

* feat(github): offline label & fixes

* Clear label if there are no notifications and empty-notifications = false

* clang-format

Co-authored-by: Patrick Ziegler <p.ziegler96@gmail.com>

include/modules/github.hpp

@@ -16,18 +16,24 @@ namespace modules {
 
     bool update();
     bool build(builder* builder, const string& tag) const;
+    string get_format() const;
+
 
    private:
     void update_label(int);
     int get_number_of_notification();
     string request();
     static constexpr auto TAG_LABEL = "<label>";
+    static constexpr auto TAG_LABEL_OFFLINE = "<label-offline>";
+    static constexpr auto FORMAT_OFFLINE = "format-offline";
 
     label_t m_label{};
+    label_t m_label_offline{};
     string m_api_url;
     string m_accesstoken{};
     unique_ptr<http_downloader> m_http{};
     bool m_empty_notifications{false};
+    std::atomic<bool> m_offline{false};
   };
 }
 

src/modules/github.cpp

@@ -1,10 +1,10 @@
+#include "modules/github.hpp"
+
 #include <cassert>
 
 #include "drawtypes/label.hpp"
-#include "modules/github.hpp"
-#include "utils/concurrency.hpp"
-
 #include "modules/meta/base.inl"
+#include "utils/concurrency.hpp"
 
 POLYBAR_NS
 
@@ -29,10 +29,16 @@ namespace modules {
 
     if (m_formatter->has(TAG_LABEL)) {
       m_label = load_optional_label(m_conf, name(), TAG_LABEL, "Notifications: %notifications%");
+    }
+
+    m_formatter->add(FORMAT_OFFLINE, TAG_LABEL_OFFLINE, {TAG_LABEL_OFFLINE});
+
+    if (m_formatter->has(TAG_LABEL_OFFLINE)) {
+      m_label_offline = load_optional_label(m_conf, name(), TAG_LABEL_OFFLINE, "Offline");
+    }
 
     update_label(0);
   }
-  }
 
   /**
    * Update module contents
@@ -68,10 +74,15 @@ namespace modules {
     try {
       content = request();
     } catch (application_error& e) {
-      m_log.warn("%s: cannot complete the request to github: %s", name(), e.what());
+      if (!m_offline) {
+        m_log.info("%s: cannot complete the request to github: %s", name(), e.what());
+      }
+      m_offline = true;
       return -1;
     }
 
+    m_offline = false;
+
     size_t pos{0};
     size_t notifications{0};
 
@@ -82,7 +93,15 @@ namespace modules {
     return notifications;
   }
 
+  string github_module::get_format() const {
+    return m_offline ? FORMAT_OFFLINE : DEFAULT_FORMAT;
+  }
+
   void github_module::update_label(const int notifications) {
+    if (!m_label) {
+      return;
+    }
+
     if (0 != notifications || m_empty_notifications) {
       m_label->reset_tokens();
       m_label->replace_token("%notifications%", to_string(notifications));
@@ -95,12 +114,16 @@ namespace modules {
    * Build module content
    */
   bool github_module::build(builder* builder, const string& tag) const {
-    if (tag != TAG_LABEL)
-      return false;
-
+    if (tag == TAG_LABEL) {
       builder->node(m_label);
       return true;
+    } else if (tag == TAG_LABEL_OFFLINE) {
+      builder->node(m_label_offline);
+      return true;
     }
-}
+
+    return false;
+  }
+}  // namespace modules
 
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