File Reading: add revert operator

Patch D247 by Evans Jahja with edits

1 files changed, 33 insertions, 0 deletions

diff --git a/source/blender/windowmanager/intern/wm_operators.c b/source/blender/windowmanager/intern/wm_operators.c
index ac23983d8ed..6f82361d64e 100644
--- a/source/blender/windowmanager/intern/wm_operators.c
+++ b/source/blender/windowmanager/intern/wm_operators.c
@@ -2309,6 +2309,38 @@ static void WM_OT_open_mainfile(wmOperatorType *ot)
 	                "Allow .blend file to execute scripts automatically, default available from system preferences");
 }
 
+
+/* *************** revert file **************** */
+
+static int wm_revert_mainfile_exec(bContext *C, wmOperator *op)
+{
+	bool success;
+
+	success = wm_file_read_opwrap(C, G.main->name, op->reports, true);
+
+	if (success) {
+		return OPERATOR_FINISHED;
+	}
+	else {
+		return OPERATOR_CANCELLED;
+	}
+}
+
+static int wm_revert_mainfile_poll(bContext *UNUSED(C))
+{
+	return G.relbase_valid;
+}
+
+static void WM_OT_revert_mainfile(wmOperatorType *ot)
+{
+	ot->name = "Revert";
+	ot->idname = "WM_OT_revert_mainfile";
+	ot->description = "Reload the saved file";
+
+	ot->exec = wm_revert_mainfile_exec;
+	ot->poll = wm_revert_mainfile_poll;
+}
+
 /* **************** link/append *************** */
 
 static int wm_link_append_poll(bContext *C)
@@ -4367,6 +4399,7 @@ void wm_operatortype_init(void)
 	WM_operatortype_append(WM_OT_window_fullscreen_toggle);
 	WM_operatortype_append(WM_OT_quit_blender);
 	WM_operatortype_append(WM_OT_open_mainfile);
+	WM_operatortype_append(WM_OT_revert_mainfile);
 	WM_operatortype_append(WM_OT_link_append);
 	WM_operatortype_append(WM_OT_recover_last_session);
 	WM_operatortype_append(WM_OT_recover_auto_save);