From 5d08bbfe4ca858c067caad0cc8ce0c08a52e1f44 Mon Sep 17 00:00:00 2001
From: Milan Crha <mcrha@redhat.com>
Date: Mon, 26 Apr 2010 16:43:15 +0200
Subject: Bug #603418 - Custom headers not displayed in message preview
---
mail/e-mail-reader-utils.c | 186 +++++++++++++++++++++++++++++++++++++++++++++
1 file changed, 186 insertions(+)
(limited to 'mail/e-mail-reader-utils.c')
diff --git a/mail/e-mail-reader-utils.c b/mail/e-mail-reader-utils.c
index b525345d4a..ab72b364c7 100644
--- a/mail/e-mail-reader-utils.c
+++ b/mail/e-mail-reader-utils.c
@@ -24,6 +24,7 @@
#include "e-mail-reader-utils.h"
#include <glib/gi18n.h>
+#include <libxml/tree.h>
#include <gtkhtml/gtkhtml.h>
#include <camel/camel-mime-message.h>
#include <camel/camel-vee-folder.h>
@@ -37,6 +38,7 @@
#include "mail/em-format-html-print.h"
#include "mail/em-utils.h"
#include "mail/mail-autofilter.h"
+#include "mail/mail-config.h"
#include "mail/mail-ops.h"
#include "mail/mail-tools.h"
#include "mail/mail-vfolder.h"
@@ -556,3 +558,187 @@ e_mail_reader_create_vfolder_from_selected (EMailReader *reader,
em_utils_uids_free (uids);
}
+
+static EMailReaderHeader *
+emr_header_from_xmldoc (xmlDocPtr doc)
+{
+ EMailReaderHeader *h;
+ xmlNodePtr root;
+ xmlChar *name;
+
+ if (doc == NULL)
+ return NULL;
+
+ root = doc->children;
+ if (strcmp ((gchar *)root->name, "header") != 0)
+ return NULL;
+
+ name = xmlGetProp (root, (const guchar *)"name");
+ if (name == NULL)
+ return NULL;
+
+ h = g_malloc0 (sizeof (EMailReaderHeader));
+ h->name = g_strdup ((gchar *)name);
+ xmlFree (name);
+
+ if (xmlHasProp (root, (const guchar *)"enabled"))
+ h->enabled = 1;
+ else
+ h->enabled = 0;
+
+ return h;
+}
+
+/**
+ * e_mail_reader_header_from_xml
+ * @xml: XML configuration data
+ *
+ * Parses passed XML data, which should be of
+ * the format <header name="foo" enabled />, and
+ * returns a EMailReaderHeader structure, or NULL if there
+ * is an error.
+ **/
+EMailReaderHeader *
+e_mail_reader_header_from_xml (const gchar *xml)
+{
+ EMailReaderHeader *header;
+ xmlDocPtr doc;
+
+ if (!(doc = xmlParseDoc ((guchar *) xml)))
+ return NULL;
+
+ header = emr_header_from_xmldoc (doc);
+ xmlFreeDoc (doc);
+
+ return header;
+}
+
+/**
+ * e_mail_reader_header_to_xml
+ * @header: header from which to generate XML
+ *
+ * Returns the passed header as a XML structure,
+ * or NULL on error
+ */
+gchar *
+e_mail_reader_header_to_xml (EMailReaderHeader *header)
+{
+ xmlDocPtr doc;
+ xmlNodePtr root;
+ xmlChar *xml;
+ gchar *out;
+ gint size;
+
+ g_return_val_if_fail (header != NULL, NULL);
+ g_return_val_if_fail (header->name != NULL, NULL);
+
+ doc = xmlNewDoc ((const guchar *)"1.0");
+
+ root = xmlNewDocNode (doc, NULL, (const guchar *)"header", NULL);
+ xmlSetProp (root, (const guchar *)"name", (guchar *)header->name);
+ if (header->enabled)
+ xmlSetProp (root, (const guchar *)"enabled", NULL);
+
+ xmlDocSetRootElement (doc, root);
+ xmlDocDumpMemory (doc, &xml, &size);
+ xmlFreeDoc (doc);
+
+ out = g_malloc (size + 1);
+ memcpy (out, xml, size);
+ out[size] = '\0';
+ xmlFree (xml);
+
+ return out;
+}
+
+/**
+ * e_mail_reader_header_free
+ * @header: header to free
+ *
+ * Frees the memory associated with the passed header
+ * structure.
+ */
+void
+e_mail_reader_header_free (EMailReaderHeader *header)
+{
+ if (header == NULL)
+ return;
+
+ g_free (header->name);
+ g_free (header);
+}
+
+static void
+headers_changed_cb (GConfClient *gconf, guint cnxn_id, GConfEntry *entry, EMailReader *reader)
+{
+ EMFormat *emf;
+ EMFormatHTMLDisplay *emfhd;
+ GSList *header_config_list, *p;
+
+ g_return_if_fail (gconf != NULL);
+ g_return_if_fail (reader != NULL);
+
+ emfhd = e_mail_reader_get_html_display (reader);
+ if (!emfhd)
+ return;
+
+ emf = EM_FORMAT (emfhd);
+ g_return_if_fail (emf != NULL);
+
+ header_config_list = gconf_client_get_list (gconf, "/apps/evolution/mail/display/headers", GCONF_VALUE_STRING, NULL);
+ em_format_clear_headers (emf);
+ for (p = header_config_list; p; p = g_slist_next(p)) {
+ EMailReaderHeader *h;
+ gchar *xml = (gchar *)p->data;
+
+ h = e_mail_reader_header_from_xml (xml);
+ if (h && h->enabled) {
+ em_format_add_header (emf, h->name, EM_FORMAT_HEADER_BOLD);
+ }
+
+ e_mail_reader_header_free (h);
+ }
+
+ g_slist_foreach(header_config_list, (GFunc) g_free, NULL);
+ g_slist_free(header_config_list);
+
+ /* force a redraw */
+ if (emf->message)
+ em_format_redraw (emf);
+}
+
+static void
+remove_header_notify_cb (gpointer data)
+{
+ GConfClient *gconf = mail_config_get_gconf_client ();
+ guint notify_id;
+
+ g_return_if_fail (gconf != NULL);
+
+ notify_id = GPOINTER_TO_INT (data);
+ g_return_if_fail (notify_id != 0);
+
+ gconf_client_notify_remove (gconf, notify_id);
+ gconf_client_remove_dir (gconf, "/apps/evolution/mail/display", NULL);
+}
+
+/**
+ * e_mail_reader_connect_headers
+ * @reader: an #EMailReader
+ *
+ * Connects @reader to listening for changes in headers and
+ * updates the EMFormat whenever it changes and on this call too.
+ **/
+void
+e_mail_reader_connect_headers (EMailReader *reader)
+{
+ GConfClient *gconf = mail_config_get_gconf_client ();
+ guint notify_id;
+
+ gconf_client_add_dir (gconf, "/apps/evolution/mail/display", GCONF_CLIENT_PRELOAD_NONE, NULL);
+ notify_id = gconf_client_notify_add (gconf, "/apps/evolution/mail/display/headers", (GConfClientNotifyFunc) headers_changed_cb, reader, NULL, NULL);
+
+ g_object_set_data_full (G_OBJECT (reader), "reader-header-notify-id", GINT_TO_POINTER (notify_id), remove_header_notify_cb);
+
+ headers_changed_cb (gconf, 0, NULL, reader);
+}
--
cgit