From 136ba113ccf963b89b093d11388c5c473efb2799 Mon Sep 17 00:00:00 2001
From: Patrick McDermott <pj@pehjota.net>
Date: Sat, 30 Sep 2017 19:47:41 -0400
Subject: mq_html_notebook(): Accept and handle a current_page argument

---
diff --git a/src/html.c b/src/html.c
index 914a051..bf4f18c 100644
--- a/src/html.c
+++ b/src/html.c
@@ -68,7 +68,7 @@ mq_html_container(const gchar *element, ...)
 }
 
 gchar *
-mq_html_notebook(gboolean vertical, const gchar *name, ...)
+mq_html_notebook(gboolean vertical, const gchar *name, guint current_page, ...)
 {
 	gsize    name_len;
 	gsize    len;
@@ -83,7 +83,7 @@ mq_html_notebook(gboolean vertical, const gchar *name, ...)
 	/* Calculate length. */
 	name_len = strlen(name);
 	len = strlen("<div class=\"notebook-") + 1 + strlen("\">\n");
-	va_start(ap, name);
+	va_start(ap, current_page);
 	i = 0;
 	while ((child = va_arg(ap, gchar *)) &&
 			(tab_label = va_arg(ap, gchar *))) {
@@ -93,8 +93,11 @@ mq_html_notebook(gboolean vertical, const gchar *name, ...)
 		len += strlen("_");
 		len += strlen(i_str);
 		/* len += (gsize) log10(i) + 1; */
-		len += strlen("\" type=\"radio\" checked=\"checked\" "
-			"name=\"_tabs\"></input>\n");
+		len += strlen("\" type=\"radio\"");
+		if (i == current_page) {
+			len += strlen(" checked=\"checked\"");
+		}
+		len += strlen(" name=\"_tabs\"></input>\n");
 		len += strlen("<label for=\"_tab_");
 		len += name_len;
 		len += strlen("_");
@@ -106,7 +109,7 @@ mq_html_notebook(gboolean vertical, const gchar *name, ...)
 		++i;
 	}
 	va_end(ap);
-	va_start(ap, name);
+	va_start(ap, current_page);
 	while ((child = va_arg(ap, gchar *)) &&
 			(tab_label = va_arg(ap, gchar *))) {
 		/* TODO: Page ID and control CSS */
@@ -121,7 +124,7 @@ mq_html_notebook(gboolean vertical, const gchar *name, ...)
 	ptr = g_stpcpy(notebook, "<div class=\"notebook-");
 	ptr = g_stpcpy(ptr, vertical ? "v" : "h");
 	ptr = g_stpcpy(ptr, "\">\n");
-	va_start(ap, name);
+	va_start(ap, current_page);
 	i = 0;
 	while ((child = va_arg(ap, gchar *)) &&
 			(tab_label = va_arg(ap, gchar *))) {
@@ -130,8 +133,11 @@ mq_html_notebook(gboolean vertical, const gchar *name, ...)
 		ptr = g_stpcpy(ptr, name);
 		ptr = g_stpcpy(ptr, "_");
 		ptr = g_stpcpy(ptr, i_str);
-		ptr = g_stpcpy(ptr, "\" type=\"radio\" checked=\"checked\" "
-			"name=\"_tabs\"></input>\n");
+		ptr = g_stpcpy(ptr, "\" type=\"radio\"");
+		if (i == current_page) {
+			ptr = g_stpcpy(ptr, " checked=\"checked\"");
+		}
+		ptr = g_stpcpy(ptr, " name=\"_tabs\"></input>\n");
 		ptr = g_stpcpy(ptr, "<label for=\"_tab_");
 		ptr = g_stpcpy(ptr, name);
 		ptr = g_stpcpy(ptr, "_");
@@ -143,7 +149,7 @@ mq_html_notebook(gboolean vertical, const gchar *name, ...)
 		++i;
 	}
 	va_end(ap);
-	va_start(ap, name);
+	va_start(ap, current_page);
 	while ((child = va_arg(ap, gchar *)) &&
 			(tab_label = va_arg(ap, gchar *))) {
 		/* TODO: Page ID and control CSS */
diff --git a/src/html.h b/src/html.h
index db738e9..b31179d 100644
--- a/src/html.h
+++ b/src/html.h
@@ -28,7 +28,7 @@ gchar *
 mq_html_container(const gchar *element, ...);
 
 gchar *
-mq_html_notebook(gboolean vertical, const gchar *name, ...);
+mq_html_notebook(gboolean vertical, const gchar *name, guint current_page, ...);
 
 gchar *
 mq_html_form(const gchar *submit_label, const gchar *reset_label, ...);
--
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