[evolution] Adapt to Camel API changes.

[Matthew Barnes <mbarnes src gnome org>]

commit 63eba7c310c6eb45a4a405911b4f0cec1c900afc
Author: Matthew Barnes <mbarnes redhat com>
Date:   Sat Jan 28 19:19:38 2012 -0500

    Adapt to Camel API changes.

 em-format/em-format.c         |    2 +-
 mail/em-format-html-display.c |   29 ++++++--------
 mail/em-format-html.c         |   83 +++++++++++++++++++++--------------------
 mail/em-format-html.h         |    6 +-
 4 files changed, 59 insertions(+), 61 deletions(-)
---
diff --git a/em-format/em-format.c b/em-format/em-format.c
index 4647a70..71740b3 100644
--- a/em-format/em-format.c
+++ b/em-format/em-format.c
@@ -271,7 +271,7 @@ emf_format_secure (EMFormat *emf,
 	if (emf->valid == NULL) {
 		emf->valid = valid;
 	} else {
-		camel_dlist_addtail (&emf->valid_parent->children, (CamelDListNode *) valid);
+		g_queue_push_tail (&emf->valid_parent->children, valid);
 		camel_cipher_validity_envelope (emf->valid_parent, valid);
 	}
 
diff --git a/mail/em-format-html-display.c b/mail/em-format-html-display.c
index 48b62b7..a0e5086 100644
--- a/mail/em-format-html-display.c
+++ b/mail/em-format-html-display.c
@@ -214,14 +214,19 @@ efhd_xpkcs7mime_viewcert_clicked (GtkWidget *button,
 
 static void
 efhd_xpkcs7mime_add_cert_table (GtkWidget *grid,
-                                CamelDList *certlist,
+                                GQueue *certlist,
                                 struct _smime_pobject *po)
 {
-	CamelCipherCertInfo *info = (CamelCipherCertInfo *) certlist->head;
-	GtkTable *table = (GtkTable *) gtk_table_new (camel_dlist_length (certlist), 2, FALSE);
+	GList *head, *link;
+	GtkTable *table;
 	gint n = 0;
 
-	while (info->next) {
+	table = (GtkTable *) gtk_table_new (certlist->length, 2, FALSE);
+
+	head = g_queue_peek_head_link (certlist);
+
+	for (link = head; link != NULL; link = g_list_next (link)) {
+		CamelCipherCertInfo *info = link->data;
 		gchar *la = NULL;
 		const gchar *l = NULL;
 
@@ -263,8 +268,6 @@ efhd_xpkcs7mime_add_cert_table (GtkWidget *grid,
 #endif
 			n++;
 		}
-
-		info = info->next;
 	}
 
 	gtk_container_add (GTK_CONTAINER (grid), GTK_WIDGET (table));
@@ -315,7 +318,7 @@ efhd_xpkcs7mime_validity_clicked (GtkWidget *button,
 		gtk_container_add (GTK_CONTAINER (grid), w);
 	}
 
-	if (!camel_dlist_empty (&po->valid->sign.signers))
+	if (!g_queue_is_empty (&po->valid->sign.signers))
 		efhd_xpkcs7mime_add_cert_table (grid, &po->valid->sign.signers, po);
 
 	gtk_widget_show_all (grid);
@@ -348,7 +351,7 @@ efhd_xpkcs7mime_validity_clicked (GtkWidget *button,
 		gtk_container_add (GTK_CONTAINER (grid), w);
 	}
 
-	if (!camel_dlist_empty (&po->valid->encrypt.encrypters))
+	if (!g_queue_is_empty (&po->valid->encrypt.encrypters))
 		efhd_xpkcs7mime_add_cert_table (grid, &po->valid->encrypt.encrypters, po);
 
 	gtk_widget_show_all (grid);
@@ -639,7 +642,6 @@ efhd_format_secure (EMFormat *emf,
 		g_free (classid);
 
 		if (valid->sign.status != CAMEL_CIPHER_VALIDITY_SIGN_NONE) {
-			gchar *signers;
 			const gchar *desc;
 			gint status;
 
@@ -648,13 +650,8 @@ efhd_format_secure (EMFormat *emf,
 
 			g_string_append (buffer, gettext (desc));
 
-			signers = em_format_html_format_cert_infos (
-				(CamelCipherCertInfo *) valid->sign.signers.head);
-			if (signers && *signers) {
-				g_string_append_printf (
-					buffer, " (%s)", signers);
-			}
-			g_free (signers);
+			em_format_html_format_cert_infos (
+				&valid->sign.signers, buffer);
 		}
 
 		if (valid->encrypt.status != CAMEL_CIPHER_VALIDITY_ENCRYPT_NONE) {
diff --git a/mail/em-format-html.c b/mail/em-format-html.c
index 8e4769e..107c2ce 100644
--- a/mail/em-format-html.c
+++ b/mail/em-format-html.c
@@ -1872,18 +1872,11 @@ efh_format_secure (EMFormat *emf,
 		g_free (classid);
 
 		if (valid->sign.status != CAMEL_CIPHER_VALIDITY_SIGN_NONE) {
-			gchar *signers;
-
 			g_string_append (
 				buffer, _(smime_sign_table[valid->sign.status].shortdesc));
 
-			signers = em_format_html_format_cert_infos (
-				(CamelCipherCertInfo *) valid->sign.signers.head);
-			if (signers && *signers) {
-				g_string_append_printf (
-					buffer, " (%s)", signers);
-			}
-			g_free (signers);
+			em_format_html_format_cert_infos (
+				&valid->sign.signers, buffer);
 		}
 
 		if (valid->encrypt.status != CAMEL_CIPHER_VALIDITY_ENCRYPT_NONE) {
@@ -3378,49 +3371,57 @@ efh_format_message (EMFormat *emf,
 	emf->valid_parent = save_parent;
 }
 
-gchar *
-em_format_html_format_cert_infos (CamelCipherCertInfo *first_cinfo)
+void
+em_format_html_format_cert_infos (GQueue *cert_infos,
+                                  GString *output_buffer)
 {
-	GString *res = NULL;
-	CamelCipherCertInfo *cinfo;
+	GQueue valid = G_QUEUE_INIT;
+	GList *head, *link;
 
-	if (!first_cinfo)
-		return NULL;
+	g_return_if_fail (cert_infos != NULL);
+	g_return_if_fail (output_buffer != NULL);
 
-	#define append(x) G_STMT_START {		\
-		if (!res) {				\
-			res = g_string_new (x);		\
-		} else {				\
-			g_string_append (res, x);	\
-		}					\
-	} G_STMT_END
+	head = g_queue_peek_head_link (cert_infos);
 
-	for (cinfo = first_cinfo; cinfo && cinfo->next; cinfo = cinfo->next) {
-		if (!cinfo->name && !cinfo->email)
-			continue;
+	/* Make sure we have a valid CamelCipherCertInfo before
+	 * appending anything to the output buffer, so we don't
+	 * end up with "()". */
+	for (link = head; link != NULL; link = g_list_next (link)) {
+		CamelCipherCertInfo *cinfo = link->data;
+
+		if ((cinfo->name != NULL && *cinfo->name != '\0') ||
+		    (cinfo->email != NULL && *cinfo->email != '\0'))
+			g_queue_push_tail (&valid, cinfo);
+	}
 
-		if (res)
-			append (", ");
+	if (g_queue_is_empty (&valid))
+		return;
 
-		if (cinfo->name && *cinfo->name) {
-			append (cinfo->name);
+	g_string_append (output_buffer, " (");
 
-			if (cinfo->email && *cinfo->email) {
-				append (" &lt;");
-				append (cinfo->email);
-				append ("&gt;");
+	while (!g_queue_is_empty (&valid)) {
+		CamelCipherCertInfo *cinfo;
+
+		cinfo = g_queue_pop_head (&valid);
+
+		if (cinfo->name != NULL && *cinfo->name != '\0') {
+			g_string_append (output_buffer, cinfo->name);
+
+			if (cinfo->email != NULL && *cinfo->email != '\0') {
+				g_string_append (output_buffer, " &lt;");
+				g_string_append (output_buffer, cinfo->email);
+				g_string_append (output_buffer, "&gt;");
 			}
-		} else if (cinfo->email && *cinfo->email) {
-			append (cinfo->email);
-		}
-	}
 
-	#undef append
+		} else if (cinfo->email != NULL && *cinfo->email != '\0') {
+			g_string_append (output_buffer, cinfo->email);
+		}
 
-	if (!res)
-		return NULL;
+		if (!g_queue_is_empty (&valid))
+			g_string_append (output_buffer, ", ");
+	}
 
-	return g_string_free (res, FALSE);
+	g_string_append_c (output_buffer, ')');
 }
 
 /* unref returned pointer with g_object_unref(), if not NULL */
diff --git a/mail/em-format-html.h b/mail/em-format-html.h
index 954a54e..bc6a171 100644
--- a/mail/em-format-html.h
+++ b/mail/em-format-html.h
@@ -313,9 +313,9 @@ gboolean	em_format_html_get_headers_collapsable
 void		em_format_html_set_headers_collapsable
 						(EMFormatHTML *efh,
 						 gboolean collapsable);
-
-gchar *		em_format_html_format_cert_infos
-						(CamelCipherCertInfo *first_cinfo);
+void		em_format_html_format_cert_infos
+						(GQueue *cert_infos,
+						 GString *output_buffer);
 
 CamelStream *	em_format_html_get_cached_image	(EMFormatHTML *efh,
 						 const gchar *image_uri);