** Fixes Bug #200147

2008-07-18  Bharath Acharya  <abharath@novell.com>

        ** Fixes Bug #200147

        Basic functionality implemented by Diego Escalante Urrelo 
        <diegoe@gnome.org> Everyone owes him a big mug of Beer for that.

        ** Added Templates plugin
        * Makefile.am:
        * apps-evolution-template-placeholders.schemas.in:
        * org-gnome-templates.eplug.xml:
        * templates.c: 
        * templates.glade:


svn path=/trunk/; revision=35780

10 files changed, 216 insertions, 7 deletions

diff --git a/mail/ChangeLog b/mail/ChangeLog
index 7a1af5aab8..cf9dbffc54 100644
--- a/mail/ChangeLog
+++ b/mail/ChangeLog
@@ -1,3 +1,20 @@
+2008-07-20  Bharath Acharya  <abharath@novell.com>
+
+	** Fix for bug #200147
+	Added basic Template support
+
+	* em-composer-utils.c (edit_message), (em_utils_edit_message): Modified 
+	to suit it better for plugins to use it. And added support for template 
+	placeholders to be replaced in the messages.
+	* em-composer-utils.h:
+	* em-folder-tree.c (is_special_local_folder):
+	* em-folder-utils.c (emfu_is_special_local_folder):
+	* em-folder-view.c (em_folder_view_open_selected):
+	* em-utils.c (em_utils_folder_is_templates):
+	* em-utils.h:
+	* mail-component.c:
+	* mail-component.h:
+
 2008-07-16  Sankar P  <psankar@novell.com>
 
 	Pushing disk summary changes from the madagascar branch
diff --git a/mail/em-composer-utils.c b/mail/em-composer-utils.c
index 257d66c486..fa517f8dd5 100644
--- a/mail/em-composer-utils.c
+++ b/mail/em-composer-utils.c
@@ -68,6 +68,8 @@
 #define gmtime_r(tp,tmp) (gmtime(tp)?(*(tmp)=*gmtime(tp),(tmp)):0)
 #endif
 
+#define GCONF_KEY_TEMPLATE_PLACEHOLDERS "/apps/evolution/mail/template_placeholders"
+
 static EAccount * guess_account (CamelMimeMessage *message, CamelFolder *folder);
 
 struct emcs_t {
@@ -808,8 +810,144 @@ edit_message (CamelMimeMessage *message, CamelFolder *drafts, const char *uid)
 {
 	EMsgComposer *composer;
 
+	/* Template specific code follows. */
+	if (em_utils_folder_is_templates(drafts, NULL) == TRUE) {
+		/* retrieve the message from the CamelFolder */
+		CamelDataWrapper *content;
+		CamelStream *mem;
+		CamelContentType *type;
+		CamelMimePart *mime_part = CAMEL_MIME_PART (message);
+		CamelDataWrapper *mail_text;
+		CamelMultipart *body = camel_multipart_new ();
+		CamelStream *stream;		
+		CamelMimePart *part;
+		int count1 = 0, string_changed = 0;
+
+		char *str, *convert_str = NULL;
+		gsize bytes_read, bytes_written;
+		gint count = 2;
+
+		content = camel_medium_get_content_object ((CamelMedium *) message);
+		if (!content)
+			return;
+
+		/*
+		 * Get non-multipart content from multipart message.
+		 */
+		while (CAMEL_IS_MULTIPART (content) && count > 0)
+		{
+			mime_part = camel_multipart_get_part (CAMEL_MULTIPART (content), 0);
+			content = camel_medium_get_content_object (CAMEL_MEDIUM (mime_part));
+			count--;
+		}
+
+		if (!mime_part)
+			return;
+
+		type = camel_mime_part_get_content_type (mime_part);
+		if (!camel_content_type_is (type, "text", "plain"))
+			return;
+
+		mem = camel_stream_mem_new ();
+		camel_data_wrapper_decode_to_stream (content, mem);
+
+		str = g_strndup ((const gchar*)((CamelStreamMem *) mem)->buffer->data, ((CamelStreamMem *) mem)->buffer->len);
+		camel_object_unref (mem);
+
+		const char *cur = str;
+		int i;
+		for (i = 0; i < strlen(str); i++) {
+			if (!g_ascii_strncasecmp (cur, "$", 1)) {
+				const char *end = cur, *check_env;
+				char *out;
+				GConfClient *gconf;
+				GSList *clue_list = NULL, *list;
+
+				gconf = gconf_client_get_default ();
+
+				while (*end && !isspace (*end) && (*end != '"'))
+					end++;
+
+				out = g_strndup ((const gchar *) cur, end - cur);
+				check_env = out;
+
+				char **temp_str = g_strsplit (str, out, 2);
+
+				/* Get the list from gconf */
+				clue_list = gconf_client_get_list ( gconf, GCONF_KEY_TEMPLATE_PLACEHOLDERS, GCONF_VALUE_STRING, NULL );
+
+				g_object_unref (gconf);
+
+				for (list = clue_list; list; list = g_slist_next (list)) {
+					char **temp = g_strsplit (list->data, "=", 2);
+					if (!g_ascii_strcasecmp(temp[0], out+1)) {
+						str = g_strdup_printf("%s%s%s", temp_str[0], temp[1], temp_str[1]);
+						cur = str + i;
+						count1 = 1;
+						string_changed = 1;
+					}
+					else
+						count1 = 0;
+					g_strfreev(temp);
+				}
+
+				if (clue_list) {
+					g_slist_foreach (clue_list, (GFunc) g_free, NULL);
+					g_slist_free (clue_list);
+				}
+
+				if (!count1) {
+					if (getenv(out+1)) {
+						str = g_strdup_printf("%s%s%s", temp_str[0], getenv(out + 1), temp_str[1]);
+						cur = str + i;
+						count1 = 1;
+						string_changed = 1;
+					}
+					else
+						count1 = 0;
+				}
+
+				g_strfreev(temp_str);
+			}	
+			else 
+				cur++;
+		}
+
+		if (string_changed) {
+
+			/* Create toplevel container */
+			camel_data_wrapper_set_mime_type (CAMEL_DATA_WRAPPER (body),
+					"multipart/alternative;");
+			camel_multipart_set_boundary (body, NULL);
+
+			stream = camel_stream_mem_new ();
+
+			mail_text = camel_data_wrapper_new ();
+			camel_data_wrapper_set_mime_type_field (mail_text, type);
+			
+			camel_stream_printf (stream, "%s", g_strdup(str));
+
+			camel_data_wrapper_construct_from_stream (mail_text, stream);
+			camel_object_unref (stream);
+
+			part = camel_mime_part_new ();
+			camel_medium_set_content_object (CAMEL_MEDIUM (part), mail_text);
+			camel_object_unref (mail_text);
+			camel_multipart_add_part (body, part);
+			camel_object_unref (part);
+
+			/* Finish creating the message */
+			camel_medium_set_content_object (CAMEL_MEDIUM (message), CAMEL_DATA_WRAPPER(body));
+			camel_object_unref (body);
+		}
+	}
+		
 	composer = e_msg_composer_new_with_message (message);
-	em_composer_utils_setup_callbacks (composer, NULL, NULL, 0, 0, drafts, uid);
+	
+	if (em_utils_folder_is_templates(drafts, NULL) == TRUE) 
+		em_composer_utils_setup_callbacks (composer, NULL, NULL, 0, 0, NULL, NULL);
+	else
+		em_composer_utils_setup_callbacks (composer, NULL, NULL, 0, 0, drafts, uid);
 
 	composer_set_no_change (composer, TRUE);
 
@@ -819,16 +957,20 @@ edit_message (CamelMimeMessage *message, CamelFolder *drafts, const char *uid)
 /**
  * em_utils_edit_message:
  * @message: message to edit
+ * @folder: used to recognize the templates folder
  *
  * Opens a composer filled in with the headers/mime-parts/etc of
  * @message.
  **/
 void
-em_utils_edit_message (CamelMimeMessage *message)
+em_utils_edit_message (CamelMimeMessage *message, CamelFolder *folder)
 {
 	g_return_if_fail (CAMEL_IS_MIME_MESSAGE (message));
 
-	edit_message (message, NULL, NULL);
+	if (folder)
+		edit_message (message, folder, NULL);
+	else
+		edit_message (message, NULL, NULL);	
 }
 
 static void
diff --git a/mail/em-composer-utils.h b/mail/em-composer-utils.h
index 147fb41049..cee813fc8f 100644
--- a/mail/em-composer-utils.h
+++ b/mail/em-composer-utils.h
@@ -51,7 +51,7 @@ void em_utils_compose_new_message_with_mailto (const char *url, const char *from
 void em_utils_post_to_folder (struct _CamelFolder *folder);
 void em_utils_post_to_url (const char *url);
 
-void em_utils_edit_message (struct _CamelMimeMessage *message);
+void em_utils_edit_message (struct _CamelMimeMessage *message, struct _CamelFolder *folder);
 void em_utils_edit_messages (struct _CamelFolder *folder, GPtrArray *uids, gboolean replace);
 
 void em_utils_forward_attached (struct _CamelFolder *folder, GPtrArray *uids, const char *fromuri);
diff --git a/mail/em-folder-tree.c b/mail/em-folder-tree.c
index ea108daad6..3d2175a22a 100644
--- a/mail/em-folder-tree.c
+++ b/mail/em-folder-tree.c
@@ -1087,7 +1087,7 @@ tree_drag_data_received(GtkWidget *widget, GdkDragContext *context, int x, int y
 static gboolean
 is_special_local_folder (const char *name)
 {
-	return (!strcmp (name, "Drafts") || !strcmp (name, "Inbox") || !strcmp (name, "Outbox") || !strcmp (name, "Sent"));
+	return (!strcmp (name, "Drafts") || !strcmp (name, "Inbox") || !strcmp (name, "Outbox") || !strcmp (name, "Sent") || !strcmp (name, "Templates"));
 }
 
 static GdkAtom
diff --git a/mail/em-folder-utils.c b/mail/em-folder-utils.c
index aae43e2441..551d14bcec 100644
--- a/mail/em-folder-utils.c
+++ b/mail/em-folder-utils.c
@@ -81,7 +81,7 @@ extern CamelSession *session;
 static gboolean
 emfu_is_special_local_folder (const char *name)
 {
-	return (!strcmp (name, "Drafts") || !strcmp (name, "Inbox") || !strcmp (name, "Outbox") || !strcmp (name, "Sent"));
+	return (!strcmp (name, "Drafts") || !strcmp (name, "Inbox") || !strcmp (name, "Outbox") || !strcmp (name, "Sent") || !strcmp (name, "Templates"));
 }
 
 struct _EMCopyFolders {
diff --git a/mail/em-folder-view.c b/mail/em-folder-view.c
index b7f911ad9d..3dad22a1a3 100644
--- a/mail/em-folder-view.c
+++ b/mail/em-folder-view.c
@@ -520,6 +520,7 @@ em_folder_view_open_selected(EMFolderView *emfv)
 	}
 
         if (em_utils_folder_is_drafts(emfv->folder, emfv->folder_uri)
+	    || em_utils_folder_is_templates(emfv->folder, emfv->folder_uri) 	
 	    || em_utils_folder_is_outbox(emfv->folder, emfv->folder_uri)) {
 		em_utils_edit_messages(emfv->folder, uids, TRUE);
 		return uids->len;
@@ -2647,7 +2648,7 @@ emfv_list_double_click(ETree *tree, gint row, ETreePath path, gint col, GdkEvent
 	/* Ignore double-clicks on columns that handle thier own state */
 	if (MESSAGE_LIST_COLUMN_IS_ACTIVE (col))
 		return;
-
+	
 	em_folder_view_open_selected(emfv);
 }
 
diff --git a/mail/em-utils.c b/mail/em-utils.c
index ff686f3d8c..4fd8a98958 100644
--- a/mail/em-utils.c
+++ b/mail/em-utils.c
@@ -1364,7 +1364,53 @@ em_utils_temp_save_part(GtkWidget *parent, CamelMimePart *part, gboolean mode)
 	return path;
 }
 
+/** em_utils_folder_is_templates:
+ * @folder: folder
+ * @uri: uri for this folder, if known
+ *
+ * Decides if @folder is a Templates folder.
+ *
+ * Returns %TRUE if this is a Drafts folder or %FALSE otherwise.
+ **/
+
+gboolean
+em_utils_folder_is_templates (CamelFolder *folder, const char *uri)
+{
+	EAccountList *accounts;
+	EAccount *account;
+	EIterator *iter;
+	int is = FALSE;
+	char *templates_uri;
 
+	if (folder == mail_component_get_folder (NULL, MAIL_COMPONENT_FOLDER_TEMPLATES))
+		return TRUE;
+	
+	if (uri == NULL)
+		return FALSE;
+		
+	accounts = mail_config_get_accounts();
+	iter = e_list_get_iterator ((EList *)accounts);
+	while (e_iterator_is_valid (iter)) {
+		account = (EAccount *)e_iterator_get (iter);
+		
+		if (account->templates_folder_uri) {
+			templates_uri = em_uri_to_camel (account->templates_folder_uri);
+			if (camel_store_folder_uri_equal (folder->parent_store, templates_uri, uri)) {
+				g_free (templates_uri);
+				is = TRUE;
+				break;
+			}
+			g_free (templates_uri);
+		}
+		
+		e_iterator_next (iter);
+	}
+	
+	g_object_unref (iter);
+	
+	return is;
+}
+		
 /**
  * em_utils_folder_is_drafts:
  * @folder: folder
diff --git a/mail/em-utils.h b/mail/em-utils.h
index 045b922e3d..5fd05faafb 100644
--- a/mail/em-utils.h
+++ b/mail/em-utils.h
@@ -82,6 +82,7 @@ char *em_utils_temp_save_part(struct _GtkWidget *parent, struct _CamelMimePart *
 void em_utils_save_parts (struct _GtkWidget *parent, const char *prompt, GSList * parts);
 
 gboolean em_utils_folder_is_drafts(struct _CamelFolder *folder, const char *uri);
+gboolean em_utils_folder_is_templates(struct _CamelFolder *folder, const char *uri);
 gboolean em_utils_folder_is_sent(struct _CamelFolder *folder, const char *uri);
 gboolean em_utils_folder_is_outbox(struct _CamelFolder *folder, const char *uri);
 
diff --git a/mail/mail-component.c b/mail/mail-component.c
index 18c489b7ae..c4b0e317ad 100644
--- a/mail/mail-component.c
+++ b/mail/mail-component.c
@@ -161,6 +161,7 @@ static struct {
 	{ N_("Drafts"), },
 	{ N_("Outbox"), },
 	{ N_("Sent"), },
+	{ N_("Templates"), },
 	{ "Inbox", },		/* 'always local' inbox */
 };
 
diff --git a/mail/mail-component.h b/mail/mail-component.h
index 0a418d2238..9e775ad59f 100644
--- a/mail/mail-component.h
+++ b/mail/mail-component.h
@@ -47,6 +47,7 @@ enum _mail_component_folder_t {
 	MAIL_COMPONENT_FOLDER_DRAFTS,
 	MAIL_COMPONENT_FOLDER_OUTBOX,
 	MAIL_COMPONENT_FOLDER_SENT,
+	MAIL_COMPONENT_FOLDER_TEMPLATES,
 	MAIL_COMPONENT_FOLDER_LOCAL_INBOX,
 };