From c5c9684a7cff6cc41520aea66b3ff7b5f79ed2ca Mon Sep 17 00:00:00 2001
From: P. J. McDermott <pj@pehjota.net>
Date: Mon, 01 Oct 2018 19:05:47 -0400
Subject: mq_notebook_foreach_page(): New function

---
diff --git a/src/notebook.c b/src/notebook.c
index 7b846f4..9970a57 100644
--- a/src/notebook.c
+++ b/src/notebook.c
@@ -46,6 +46,8 @@ struct _MqNotebook {
 	MqTabTree   *found_node;
 	MqTabPage   *current_page;
 	GtkWidget   *tab_tree_popover;
+	gboolean   (*foreach_cb)(MqTabPage *page, gpointer user_data);
+	gpointer     foreach_data;
 };
 
 enum {
@@ -481,3 +483,26 @@ mq_notebook_update_tab_title(MqNotebook *notebook, MqTabPage *tab_page,
 		mq_window_set_title(notebook->window, title);
 	}
 }
+
+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,
+		notebook->foreach_data);
+}
+
+void
+mq_notebook_foreach_page(MqNotebook *notebook,
+	gboolean (*cb)(MqTabPage *page, gpointer user_data),
+	gpointer user_data)
+{
+	notebook->foreach_cb = cb;
+	notebook->foreach_data = user_data;
+	mq_tree_foreach(MQ_TREE(notebook->tree), foreach_page, notebook);
+	notebook->foreach_cb = NULL;
+	notebook->foreach_data = NULL;
+}
diff --git a/src/notebook.h b/src/notebook.h
index 6538eb8..746a67a 100644
--- a/src/notebook.h
+++ b/src/notebook.h
@@ -78,6 +78,11 @@ void
 mq_notebook_update_tab_title(MqNotebook *notebook, MqTabPage *tab_page,
 	const gchar *title);
 
+void
+mq_notebook_foreach_page(MqNotebook *notebook,
+	gboolean (*cb)(MqTabPage *page, gpointer user_data),
+	gpointer user_data);
+
 G_END_DECLS
 
 #endif  /* MQ_NOTEBOOK_H */
--
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