dbus/dunstctl: add history command (#307)

dunstctl

@@ -113,6 +113,42 @@ case "${1:-}" in
 		dbus-send --print-reply=literal --dest="${DBUS_NAME}" "${DBUS_PATH}" "${DBUS_IFAC_DUNST}.Ping" >/dev/null 2>/dev/null \
 			|| die "Dunst controlling interface not available. Is the version too old?"
 		;;
+	"history")
+		counter=0
+		json_string="{ notifications: ["
+		for i in $(dbus-send --print-reply --dest=org.freedesktop.Notifications /org/freedesktop/Notifications org.dunstproject.cmd0.NotificationListAll | grep "string" | cut -d'"' -f2)
+		do
+			case $(($counter%8)) in
+				"0")
+				json_string=$json_string"{body:\"$i\", "
+				;;
+				"1")
+				json_string=$json_string"message:\"$i\", "
+				;;
+				"2")
+				json_string=$json_string"summary:\"$i\", "
+				;;
+				"3")
+				json_string=$json_string"actions:\"$i\", "
+				;;
+				"4")
+				json_string=$json_string"app_name:\"$i\", "
+				;;
+				"5")
+				json_string=$json_string"category:\"$i\", "
+				;;
+				"6")
+				json_string=$json_string"default_action_name:\"$i\","
+				;;
+				"7")
+				json_string=$json_string"icon_path:\"$i\" }, "
+				;;
+			esac
+			((counter=counter+1))
+		done
+		json_string=$json_string"]}"
+		echo $json_string
+		;;
 	"")
 		die "dunstctl: No command specified. Please consult the usage."
 		;;

src/dbus.c

@@ -80,6 +80,9 @@ static const char *introspection_xml =
     "        <method name=\"NotificationCloseLast\" />"
     "        <method name=\"NotificationCloseAll\"  />"
     "        <method name=\"NotificationShow\"      />"
+    "        <method name=\"NotificationListAll\">"
+    "            <arg direction=\"out\" name=\"notifications\"   type=\"aas\"/>"
+    "        </method>"
     "        <method name=\"Ping\"                  />"
 
     "        <property name=\"paused\" type=\"b\" access=\"readwrite\">"
@@ -163,13 +166,15 @@ DBUS_METHOD(dunst_NotificationAction);
 DBUS_METHOD(dunst_NotificationCloseAll);
 DBUS_METHOD(dunst_NotificationCloseLast);
 DBUS_METHOD(dunst_NotificationShow);
+DBUS_METHOD(dunst_NotificationListAll);
 DBUS_METHOD(dunst_Ping);
 static struct dbus_method methods_dunst[] = {
         {"ContextMenuCall",        dbus_cb_dunst_ContextMenuCall},
         {"NotificationAction",     dbus_cb_dunst_NotificationAction},
         {"NotificationCloseAll",   dbus_cb_dunst_NotificationCloseAll},
         {"NotificationCloseLast",  dbus_cb_dunst_NotificationCloseLast},
         {"NotificationShow",       dbus_cb_dunst_NotificationShow},
+        {"NotificationListAll",    dbus_cb_dunst_NotificationListAll},
         {"Ping",                   dbus_cb_dunst_Ping},
 };
 
@@ -283,6 +288,50 @@ static void dbus_cb_dunst_NotificationShow(GDBusConnection *connection,
         g_dbus_connection_flush(connection, NULL, NULL, NULL);
 }
 
+static void dbus_cb_dunst_NotificationListAll(GDBusConnection *connection,
+                                           const gchar *sender,
+                                           GVariant *parameters,
+                                           GDBusMethodInvocation *invocation)
+{
+        LOG_D("CMD: Listing all notifications from history");
+
+        GVariant *answer = NULL;
+        GVariantBuilder *builder;
+
+        builder = g_variant_builder_new(G_VARIANT_TYPE("aas"));
+
+        GList *notification_list = queues_get_history();
+
+        // reverse chronological list
+        for(int i = queues_length_history(); i > 0; i--) {
+                GVariantBuilder *notif_builder;
+                struct notification *n;
+                n = g_list_nth_data(notification_list, i-1);
+
+                // create sub-list per notification
+                notif_builder = g_variant_builder_new(G_VARIANT_TYPE("as"));
+
+                g_variant_builder_add(notif_builder, "s", n->body);
+                g_variant_builder_add(notif_builder, "s", n->msg);
+                g_variant_builder_add(notif_builder, "s", n->summary);
+                g_variant_builder_add(notif_builder, "s", n->actions);
+                g_variant_builder_add(notif_builder, "s", n->appname);
+                g_variant_builder_add(notif_builder, "s", n->category);
+                g_variant_builder_add(notif_builder, "s", n->default_action_name);
+                g_variant_builder_add(notif_builder, "s", n->icon_path);
+
+                // add to whole list
+                g_variant_builder_add(builder, "as", notif_builder);
+                g_clear_pointer(&notif_builder, g_variant_builder_unref);
+        }
+
+        answer = g_variant_new("(aas)", builder);
+
+        g_clear_pointer(&builder, g_variant_builder_unref);
+        g_dbus_method_invocation_return_value(invocation, answer);
+        g_dbus_connection_flush(connection, NULL, NULL, NULL);
+}
+
 /* Just a simple Ping command to give the ability to dunstctl to test for the existence of this interface
  * Any other way requires parsing the XML of the Introspection or other foo. Just calling the Ping on an old dunst version will fail. */
 static void dbus_cb_dunst_Ping(GDBusConnection *connection,

src/queues.c

@@ -77,6 +77,12 @@ unsigned int queues_length_history(void)
         return history->length;
 }
 
+/* see queues.h */
+GList *queues_get_history(void)
+{
+        return g_queue_peek_head_link(history);
+}
+
 /**
  * Swap two given queue elements. The element's data has to be a notification.
  *

src/queues.h

@@ -26,6 +26,13 @@ void queues_init(void);
  */
 GList *queues_get_displayed(void);
 
+/**
+ * Recieve the list of all notifications encountered
+ *
+ * @return read only list of notifications
+ */
+GList *queues_get_history(void);
+
 /**
  * Get the highest notification in line
  *