Jacques Lucke
687385b963
The complexity in this patch comes from the fact that the current operator system does not support multi-step user interactions well. More specifically, for this to work, we need to show a confirm dialog and a file browser afterwards. We decided that it is easier to keep everything in a single operator, instead of creating separate operators that invoke each other. So, now the `WM_OT_open_mainfile` operator invokes itself in different states. It implements a simple finite state machine to manage the states. The dialog itself is expected to be improved in a future commit. See D4829 for more details. Reviewers: brecht Differential Revision: https://developer.blender.org/D4829