From 86a6adf3b0eb8e69bc5342acedee963cb8a664df Mon Sep 17 00:00:00 2001
From: P. J. McDermott <pj@pehjota.net>
Date: Mon, 01 Oct 2018 19:10:20 -0400
Subject: mq_notebook_foreach_label(): New function

---
diff --git a/src/notebook.c b/src/notebook.c
index 9970a57..f432841 100644
--- a/src/notebook.c
+++ b/src/notebook.c
@@ -46,7 +46,8 @@ struct _MqNotebook {
 	MqTabTree   *found_node;
 	MqTabPage   *current_page;
 	GtkWidget   *tab_tree_popover;
-	gboolean   (*foreach_cb)(MqTabPage *page, gpointer user_data);
+	gboolean   (*foreach_label_cb)(MqTabLabel *label, gpointer user_data);
+	gboolean   (*foreach_page_cb)(MqTabPage *page, gpointer user_data);
 	gpointer     foreach_data;
 };
 
@@ -485,13 +486,36 @@ mq_notebook_update_tab_title(MqNotebook *notebook, MqTabPage *tab_page,
 }
 
 static gboolean
+foreach_label(MqTree *node, gpointer user_data)
+{
+	MqNotebook *notebook;
+
+	notebook = MQ_NOTEBOOK(user_data);
+
+	return notebook->foreach_label_cb(MQ_TAB_TREE(node)->label,
+		notebook->foreach_data);
+}
+
+void
+mq_notebook_foreach_label(MqNotebook *notebook,
+	gboolean (*cb)(MqTabLabel *label, gpointer user_data),
+	gpointer user_data)
+{
+	notebook->foreach_label_cb = cb;
+	notebook->foreach_data = user_data;
+	mq_tree_foreach(MQ_TREE(notebook->tree), foreach_label, notebook);
+	notebook->foreach_label_cb = NULL;
+	notebook->foreach_data = NULL;
+}
+
+static gboolean
 foreach_page(MqTree *node, gpointer user_data)
 {
 	MqNotebook *notebook;
 
 	notebook = MQ_NOTEBOOK(user_data);
 
-	return notebook->foreach_cb(MQ_TAB_TREE(node)->page,
+	return notebook->foreach_page_cb(MQ_TAB_TREE(node)->page,
 		notebook->foreach_data);
 }
 
@@ -500,9 +524,9 @@ mq_notebook_foreach_page(MqNotebook *notebook,
 	gboolean (*cb)(MqTabPage *page, gpointer user_data),
 	gpointer user_data)
 {
-	notebook->foreach_cb = cb;
+	notebook->foreach_page_cb = cb;
 	notebook->foreach_data = user_data;
 	mq_tree_foreach(MQ_TREE(notebook->tree), foreach_page, notebook);
-	notebook->foreach_cb = NULL;
+	notebook->foreach_page_cb = NULL;
 	notebook->foreach_data = NULL;
 }
diff --git a/src/notebook.h b/src/notebook.h
index 746a67a..8fec0f6 100644
--- a/src/notebook.h
+++ b/src/notebook.h
@@ -79,6 +79,11 @@ mq_notebook_update_tab_title(MqNotebook *notebook, MqTabPage *tab_page,
 	const gchar *title);
 
 void
+mq_notebook_foreach_label(MqNotebook *notebook,
+	gboolean (*cb)(MqTabLabel *label, gpointer user_data),
+	gpointer user_data);
+
+void
 mq_notebook_foreach_page(MqNotebook *notebook,
 	gboolean (*cb)(MqTabPage *page, gpointer user_data),
 	gpointer user_data);
--
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