(Moving the flag for has_changed from the Hdrs to the Composer itself.

2001-01-25  Jason Leach  <jasonleach@usa.net>

        (Moving the flag for has_changed from the Hdrs to the Composer
	itself. Providing public methods to set/unset a composer as
	changed. Adding attachments now flags the composer as changed)

	* e-msg-composer.c (e_msg_composer_unset_changed): New function.
	  (e_msg_composer_set_changed): New function.

	* e-msg-composer.c (hdrs_changed_cb): Callback to the new signal,
	  uses the new composer_set_changed.
	  (attachment_bar_changed_cb): Add a call to the new _set_changed.

	* e-msg-composer-hdrs.c (class_init): New signal "hdrs_changed" to
	  tell the parent composer that any of the headers have changed.
	  (addressbook_entry_changed): emit the new signal here.
	  (entry_changed): And here.

svn path=/trunk/; revision=7818

1 files changed, 53 insertions, 2 deletions

diff --git a/composer/e-msg-composer.c b/composer/e-msg-composer.c
index 85ba03651b..ef4b8414f2 100644
--- a/composer/e-msg-composer.c
+++ b/composer/e-msg-composer.c
@@ -807,7 +807,7 @@ exit_dialog_cb (int reply, EMsgComposer *composer)
 	default:
 	}
 }
- 
+
 static void
 do_exit (EMsgComposer *composer)
 {
@@ -815,7 +815,7 @@ do_exit (EMsgComposer *composer)
 	GtkWidget *label;
 	gint button;
 	
-	if (E_MSG_COMPOSER_HDRS (composer->hdrs)->has_changed) {
+	if (composer->has_changed) {
 		dialog = gnome_dialog_new (_("Evolution"),
 					   GNOME_STOCK_BUTTON_YES,      /* Save */
 					   GNOME_STOCK_BUTTON_NO,       /* Don't save */
@@ -1271,6 +1271,9 @@ attachment_bar_changed_cb (EMsgComposerAttachmentBar *bar,
 		e_msg_composer_show_attachments (composer, TRUE);
 	else
 		e_msg_composer_show_attachments (composer, FALSE);
+
+	/* Mark the composer as changed so it prompts about unsaved changes on close */
+	e_msg_composer_set_changed (composer);
 }
 
 static void
@@ -1290,6 +1293,18 @@ subject_changed_cb (EMsgComposerHdrs *hdrs,
 	g_free (subject);
 }
 
+static void
+hdrs_changed_cb (EMsgComposerHdrs *hdrs,
+		 void *data)
+{
+	EMsgComposer *composer;
+
+	composer = E_MSG_COMPOSER (data);
+
+	/* Mark the composer as changed so it prompts about unsaved changes on close */
+	e_msg_composer_set_changed (composer);
+}
+
 
 /* GtkObject methods.  */
 
@@ -1459,6 +1474,8 @@ init (EMsgComposer *composer)
 	composer->send_html                = FALSE;
 	composer->pgp_sign                 = FALSE;
 	composer->pgp_encrypt              = FALSE;
+
+	composer->has_changed              = FALSE;
 }
 
 
@@ -1523,6 +1540,8 @@ e_msg_composer_construct (EMsgComposer *composer)
 	gtk_box_pack_start (GTK_BOX (vbox), composer->hdrs, FALSE, FALSE, 0);
 	gtk_signal_connect (GTK_OBJECT (composer->hdrs), "subject_changed",
 			    GTK_SIGNAL_FUNC (subject_changed_cb), composer);
+	gtk_signal_connect (GTK_OBJECT (composer->hdrs), "hdrs_changed",
+			    GTK_SIGNAL_FUNC (hdrs_changed_cb), composer);
 	gtk_widget_show (composer->hdrs);
 	
 	/* Editor component.  */
@@ -2338,3 +2357,35 @@ e_msg_composer_guess_mime_type (const gchar *file_name)
 	} else
 		return NULL;
 }
+
+/**
+ * e_msg_composer_set_changed:
+ * @composer: An EMsgComposer object.
+ *
+ * Mark the composer as changed, so before the composer gets destroyed
+ * the user will be prompted about unsaved changes.
+ **/
+void
+e_msg_composer_set_changed (EMsgComposer *composer)
+{
+	g_return_if_fail (composer != NULL);
+	g_return_if_fail (E_IS_MSG_COMPOSER (composer));
+
+	composer->has_changed = TRUE;
+}
+
+/**
+ * e_msg_composer_unset_changed:
+ * @composer: An EMsgComposer object.
+ *
+ * Mark the composer as unchanged, so no prompt about unsaved changes
+ * will appear before destroying the composer.
+ **/
+void
+e_msg_composer_unset_changed (EMsgComposer *composer)
+{
+	g_return_if_fail (composer != NULL);
+	g_return_if_fail (E_IS_MSG_COMPOSER (composer));
+
+	composer->has_changed = FALSE;
+}