Re: Re: [evolution-patches] Bounty Hunt patch: Set wallpaper from mailer

[David Moore <davmre bellsouth net>]

Here's an updated patch.

Index: mail/ChangeLog
===================================================================
RCS file: /cvs/gnome/evolution/mail/ChangeLog,v
retrieving revision 1.2922
diff -u -r1.2922 ChangeLog
--- mail/ChangeLog	3 Dec 2003 00:27:51 -0000	1.2922
+++ mail/ChangeLog	4 Dec 2003 04:47:36 -0000
@@ -1,3 +1,13 @@
+2003-12-04  David Moore  <davmre bellsouth net>
+ 
+ 	* em-popup.c (emp_part_popup_set_background): Implemented; sets an 
+	image attachment as the GNOME wallpaper.
+ 	
+ 	* em-utils.c (emu_save_part_done): Created a prototype at the top
+ 	of the file.
+ 	(em_utils_save_part_to_file): Added; save a message part to a 
+ 	specified file on disk.
+
 2003-12-03  Not Zed  <NotZed Ximian com>
 
 	* mail-autofilter.c (rule_match_thread): changed to setup the rule
Index: mail/em-popup.c
===================================================================
RCS file: /cvs/gnome/evolution/mail/em-popup.c,v
retrieving revision 1.8
diff -u -r1.8 em-popup.c
--- mail/em-popup.c	3 Dec 2003 00:27:52 -0000	1.8
+++ mail/em-popup.c	4 Dec 2003 04:47:37 -0000
@@ -22,8 +22,15 @@
 #include <camel/camel-folder.h>
 #include <camel/camel-mime-message.h>
 #include <camel/camel-string-utils.h>
+#include <camel/camel-mime-utils.h>
+#include <camel/camel-mime-part.h>
 #include <camel/camel-url.h>
 
+#include <gconf/gconf.h>
+#include <gconf/gconf-client.h>
+
+#include <gal/util/e-util.h>
+
 static void emp_standard_menu_factory(EMPopup *emp, EMPopupTarget *target, void *data);
 
 struct _EMPopupFactory {
@@ -602,8 +609,62 @@
 static void
 emp_part_popup_set_background(GtkWidget *w, EMPopupTarget *t)
 {
-	/* set as background ... */
-	printf("UNIMPLEMENTED: set background, but it would be cool, no?\n");
+	GConfClient *gconf;
+	char *str, *filename, *path, *extension;
+	unsigned int i=1;
+	
+	filename = g_strdup(camel_mime_part_get_filename(t->data.part.part));
+	   
+	/* if filename is blank, create a default filename based on MIME type */
+	if (!filename || !filename[0])
+		filename = g_strconcat(_("untitled_image."), camel_mime_part_get_content_type(t->data.part.part)->subtype, NULL);
+
+	e_filename_make_safe(filename);
+	
+	path = g_build_filename(g_get_home_dir(), ".gnome2", "wallpapers", filename, NULL);
+	
+	extension = strrchr(filename, '.');
+	if (extension)
+		*extension++ = 0;
+	
+	/* if file exists, stick a (number) on the end */
+	while (g_file_test(path, G_FILE_TEST_EXISTS)) {
+		char *name;
+		name = g_strdup_printf(extension?"%s (%d).%s":"%s (%d)", filename, i++, extension);
+		g_free(path);
+		path = g_build_filename(g_get_home_dir(), ".gnome2", "wallpapers", name, NULL);
+		g_free(name);
+	}
+	
+	g_free(filename);
+	
+	if (em_utils_save_part_to_file(w, path, t->data.part.part)) {
+		gconf = gconf_client_get_default();
+		
+		/* if the filename hasn't changed, blank the filename before 
+		*  setting it so that gconf detects a change and updates it */
+		if ((str = gconf_client_get_string(gconf, "/desktop/gnome/background/picture_filename", NULL)) != NULL 
+		     && strcmp (str, path) == 0) {
+			gconf_client_set_string(gconf, "/desktop/gnome/background/picture_filename", "", NULL);
+		}
+		
+		g_free (str);
+		gconf_client_set_string(gconf, "/desktop/gnome/background/picture_filename", path, NULL);
+		
+		/* if GNOME currently doesn't display a picture, set to "wallpaper"
+		 * display mode, otherwise leave it alone */
+		if ((str = gconf_client_get_string(gconf, "/desktop/gnome/background/picture_options", NULL)) == NULL 
+		     || strcmp(str, "none") == 0) {
+			gconf_client_set_string(gconf, "/desktop/gnome/background/picture_options", "wallpaper", NULL);
+		}
+		
+		gconf_client_suggest_sync(gconf, NULL);
+		
+		g_free(str);
+		g_object_unref(gconf);
+	}
+	
+	g_free(path);
 }
 
 static void
Index: mail/em-utils.c
===================================================================
RCS file: /cvs/gnome/evolution/mail/em-utils.c,v
retrieving revision 1.10
diff -u -r1.10 em-utils.c
--- mail/em-utils.c	3 Dec 2003 00:27:52 -0000	1.10
+++ mail/em-utils.c	4 Dec 2003 04:47:40 -0000
@@ -33,6 +33,7 @@
 
 #include <camel/camel-stream-fs.h>
 #include <camel/camel-url-scanner.h>
+#include <camel/camel-file-utils.h>
 
 #include <filter/filter-editor.h>
 
@@ -52,6 +53,7 @@
 #include "em-format-quote.h"
 
 static EAccount *guess_account (CamelMimeMessage *message);
+static void emu_save_part_done (CamelMimePart *part, char *name, int done, void *data);
 
 /**
  * em_utils_prompt_user:
@@ -1387,6 +1389,55 @@
 	gtk_widget_show((GtkWidget *)filesel);
 }
 
+/**
+ * em_utils_save_part_to_file:
+ * @parent: parent window
+ * @filename: filename to save to
+ * @part: part to save
+ * 
+ * Save a part's content to a specific file
+ * Creates all needed directories and overwrites without prompting
+ *
+ * Returns %TRUE if saving succeeded, %FALSE otherwise
+ **/
+gboolean
+em_utils_save_part_to_file(GtkWidget *parent, const char *filename, CamelMimePart *part) 
+{
+	int done;
+	char *dirname;
+	struct stat st;
+	
+	if (filename[0] == 0)
+		return FALSE;
+	
+	dirname = g_path_get_dirname(filename);
+	if (camel_mkdir(dirname, 0777) == -1) {
+		e_notice(parent, GTK_MESSAGE_ERROR,
+				 _("Cannot save to `%s'\n %s"), filename, g_strerror(errno));
+		g_free(dirname);
+		return FALSE;
+	}
+	g_free(dirname);
+
+	if (access(filename, F_OK) == 0) {
+		if (access(filename, W_OK) != 0) {
+			e_notice(parent, GTK_MESSAGE_ERROR,
+				 _("Cannot save to `%s'\n %s"), filename, g_strerror(errno));
+			return FALSE;
+		}
+	}
+	
+	if (stat(filename, &st) != -1 && !S_ISREG(st.st_mode)) {
+		e_notice(parent, GTK_MESSAGE_ERROR,
+				 _("Error: '%s' exists and is not a regular file"), filename);
+		return FALSE;
+	}
+	
+	/* FIXME: This doesn't handle default charsets */
+	mail_msg_wait(mail_save_part(part, filename, emu_save_part_done, &done));
+	
+	return done;
+}
 
 struct _save_messages_data {
 	CamelFolder *folder;
Index: mail/em-utils.h
===================================================================
RCS file: /cvs/gnome/evolution/mail/em-utils.h,v
retrieving revision 1.6
diff -u -r1.6 em-utils.h
--- mail/em-utils.h	3 Dec 2003 00:27:52 -0000	1.6
+++ mail/em-utils.h	4 Dec 2003 04:47:40 -0000
@@ -86,6 +86,7 @@
 void em_utils_post_reply_to_message_by_uid (struct _CamelFolder *folder, const char *uid);
 
 void em_utils_save_part(struct _GtkWidget *parent, const char *prompt, struct _CamelMimePart *part);
+gboolean em_utils_save_part_to_file(struct _GtkWidget *parent, const char *filename, struct _CamelMimePart *part);
 void em_utils_save_messages (struct _GtkWidget *parent, struct _CamelFolder *folder, GPtrArray *uids);
 
 void em_utils_add_address(struct _GtkWidget *parent, const char *email);