Mail formatter rewrite

All mail-parsing and formatting code has been moved to em-format.
Parsing is handeled by EMailParser class, formatting by EMailFormatter.
Both classes have registry which hold extensions - simple classes
that do actual parsing and formatting. Each supported mime-type
has it's own parser and formatter extension class.

1 files changed, 276 insertions, 0 deletions

diff --git a/em-format/e-mail-formatter-message-rfc822.c b/em-format/e-mail-formatter-message-rfc822.c
new file mode 100644
index 0000000000..558579b00a
--- /dev/null
+++ b/em-format/e-mail-formatter-message-rfc822.c
@@ -0,0 +1,276 @@
+/*
+ * e-mail-formatter-message-rfc822.c
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2 of the License, or (at your option) version 3.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with the program; if not, see <http://www.gnu.org/licenses/>
+ *
+ */
+
+#ifdef HAVE_CONFIG_H
+#include <config.h>
+#endif
+
+#include "e-mail-format-extensions.h"
+
+#include <glib/gi18n-lib.h>
+#include <glib-object.h>
+
+#include <em-format/e-mail-formatter-extension.h>
+#include <em-format/e-mail-formatter.h>
+#include <em-format/e-mail-part-list.h>
+#include <em-format/e-mail-part-utils.h>
+#include <e-util/e-util.h>
+
+#include <camel/camel.h>
+
+#include <string.h>
+
+static const gchar* formatter_mime_types[] = { "message/rfc822",
+					       "application/vnd.evolution.rfc822.end",
+					       NULL };
+
+typedef struct _EMailFormatterMessageRFC822 {
+	GObject parent;
+} EMailFormatterMessageRFC822;
+
+typedef struct _EMailFormatterMessageRFC822Class {
+	GObjectClass parent_class;
+} EMailFormatterMessageRFC822Class;
+
+static void e_mail_formatter_formatter_extension_interface_init (EMailFormatterExtensionInterface *iface);
+static void e_mail_formatter_mail_extension_interface_init (EMailExtensionInterface *iface);
+
+G_DEFINE_TYPE_EXTENDED (
+	EMailFormatterMessageRFC822,
+	e_mail_formatter_message_rfc822,
+	G_TYPE_OBJECT,
+	0,
+	G_IMPLEMENT_INTERFACE (
+		E_TYPE_MAIL_EXTENSION,
+		e_mail_formatter_mail_extension_interface_init)
+	G_IMPLEMENT_INTERFACE (
+		E_TYPE_MAIL_FORMATTER_EXTENSION,
+		e_mail_formatter_formatter_extension_interface_init));
+
+static gboolean
+emfe_message_rfc822_format (EMailFormatterExtension *extension,
+                            EMailFormatter *formatter,
+                            EMailFormatterContext *context,
+                            EMailPart *part,
+                            CamelStream *stream,
+                            GCancellable *cancellable)
+{
+	if (g_cancellable_is_cancelled (cancellable))
+		return FALSE;
+
+	if (context->mode == E_MAIL_FORMATTER_MODE_RAW) {
+		GSList *iter;
+		gchar *header, *end;
+
+		header = e_mail_formatter_get_html_header (formatter);
+		camel_stream_write_string (stream, header, cancellable, NULL);
+		g_free (header);
+
+		/* Print content of the message normally */
+		context->mode = E_MAIL_FORMATTER_MODE_NORMAL;
+
+		iter = e_mail_part_list_get_iter (context->parts, part->id);
+
+		end = g_strconcat (part->id, ".end", NULL);
+		for (iter = iter->next; iter; iter = g_slist_next (iter)) {
+			EMailPart * p = iter->data;
+			if (!p)
+				continue;
+
+			/* Check for nested rfc822 messages */
+			if (g_str_has_suffix (p->id, ".rfc822")) {
+				gchar *sub_end = g_strconcat (p->id, ".end", NULL);
+
+				while (iter) {
+					p = iter->data;
+					if (!p) {
+						iter = iter->next;
+						continue;
+					}
+
+					if (g_strcmp0 (p->id, sub_end) == 0) {
+						break;
+					}
+
+					iter = iter->next;
+				}
+				g_free (sub_end);
+				continue;
+			}
+			if ((g_strcmp0 (p->id, end) == 0))
+				break;
+
+			if (p->is_hidden)
+				continue;
+
+			e_mail_formatter_format_as (
+				formatter, context, p,
+				stream, NULL, cancellable);
+
+		}
+
+		g_free (end);
+
+		context->mode = E_MAIL_FORMATTER_MODE_RAW;
+
+		camel_stream_write_string (stream, "</body></html>", cancellable, NULL);
+
+	} else if (context->mode == E_MAIL_FORMATTER_MODE_PRINTING) {
+
+		GSList *iter;
+		gchar *end;
+
+		/* Part is EMailPartAttachment */
+		iter = e_mail_part_list_get_iter (context->parts, part->id);
+		iter = g_slist_next (iter);
+
+		if (!iter || !iter->next || !iter->data)
+			return FALSE;
+
+		part = iter->data;
+		end = g_strconcat (part->id, ".end", NULL);
+
+		for (iter = iter->next; iter; iter = g_slist_next (iter)) {
+			EMailPart * p = iter->data;
+			if (!p)
+				continue;
+
+			/* Skip attachment bar */
+			if (g_str_has_suffix (part->id, ".attachment-bar"))
+				continue;
+
+			/* Check for nested rfc822 messages */
+			if (g_str_has_suffix (p->id, ".rfc822")) {
+				gchar *sub_end = g_strconcat (p->id, ".end", NULL);
+
+				while (iter) {
+					p = iter->data;
+					if (!p) {
+						iter = iter->next;
+						continue;
+					}
+
+					if (g_strcmp0 (p->id, sub_end) == 0) {
+						break;
+					}
+
+					iter = iter->next;
+				}
+				g_free (sub_end);
+				continue;
+			}
+
+			if ((g_strcmp0 (p->id, end) == 0))
+				break;
+
+			if (p->is_hidden)
+				continue;
+
+			e_mail_formatter_format_as (
+				formatter, context, p,
+				stream, NULL, cancellable);
+		}
+
+		g_free (end);
+
+	} else {
+		gchar *str;
+		gchar *uri;
+
+		EMailPart *p;
+		GSList *iter;
+
+		iter = e_mail_part_list_get_iter (context->parts, part->id);
+		if (!iter || !iter->next)
+			return FALSE;
+
+		p = iter->data;
+
+		uri = e_mail_part_build_uri (context->folder, context->message_uid,
+			"part_id", G_TYPE_STRING, p->id,
+			"mode", G_TYPE_INT, E_MAIL_FORMATTER_MODE_RAW,
+			"headers_collapsable", G_TYPE_INT, 0,
+			NULL);
+
+		str = g_strdup_printf (
+			"<div class=\"part-container\" style=\"border-color: #%06x; "
+			"background-color: #%06x;\">\n"
+			"<iframe width=\"100%%\" height=\"10\""
+			" id=\"%s.iframe\" "
+			" frameborder=\"0\" src=\"%s\" name=\"%s\"></iframe>"
+			"</div>",
+			e_color_to_value ((GdkColor *)
+				e_mail_formatter_get_color (
+					formatter, E_MAIL_FORMATTER_COLOR_FRAME)),
+			e_color_to_value ((GdkColor *)
+				e_mail_formatter_get_color (
+					formatter, E_MAIL_FORMATTER_COLOR_BODY)),
+			part->id, uri, part->id);
+
+		camel_stream_write_string (stream, str, cancellable, NULL);
+
+		g_free (str);
+		g_free (uri);
+	}
+
+	return TRUE;
+}
+
+static const gchar *
+emfe_message_rfc822_get_display_name (EMailFormatterExtension *extension)
+{
+	return _("RFC822 message");
+}
+
+static const gchar *
+emfe_message_rfc822_get_description (EMailFormatterExtension *extension)
+{
+	return _("Format part as an RFC822 message");
+}
+
+static const gchar **
+emfe_message_rfc822_mime_types (EMailExtension *extension)
+{
+	return formatter_mime_types;
+}
+
+static void
+e_mail_formatter_message_rfc822_class_init (EMailFormatterMessageRFC822Class *klass)
+{
+	e_mail_formatter_message_rfc822_parent_class = g_type_class_peek_parent (klass);
+}
+
+static void
+e_mail_formatter_formatter_extension_interface_init (EMailFormatterExtensionInterface *iface)
+{
+	iface->format = emfe_message_rfc822_format;
+	iface->get_display_name = emfe_message_rfc822_get_display_name;
+	iface->get_description = emfe_message_rfc822_get_description;
+}
+
+static void
+e_mail_formatter_mail_extension_interface_init (EMailExtensionInterface *iface)
+{
+	iface->mime_types = emfe_message_rfc822_mime_types;
+}
+
+static void
+e_mail_formatter_message_rfc822_init (EMailFormatterMessageRFC822 *formatter)
+{
+
+}