From b7075049732a0df53be6483ab5fc2333398b9ebb Mon Sep 17 00:00:00 2001 From: Harley Acheson Date: Tue, 28 Jan 2020 09:33:41 -0800 Subject: UI: Edit Menu - Undo History List and Operator Polling Enable and Disable Edit Menu items based on whether those actions are currently applicable. https://developer.blender.org/D4846 Reviewed by Brecht Van Lommel --- source/blender/editors/undo/ed_undo.c | 34 +++++++++++++++++++++++++++++++--- 1 file changed, 31 insertions(+), 3 deletions(-) (limited to 'source/blender/editors/undo') diff --git a/source/blender/editors/undo/ed_undo.c b/source/blender/editors/undo/ed_undo.c index 9770b52158a..8e190ed9c73 100644 --- a/source/blender/editors/undo/ed_undo.c +++ b/source/blender/editors/undo/ed_undo.c @@ -464,6 +464,15 @@ static bool ed_undo_redo_poll(bContext *C) WM_operator_check_ui_enabled(C, last_op->type->name)); } +static bool ed_undo_poll(bContext *C) +{ + if (!ed_undo_is_init_and_screenactive_poll(C)) { + return false; + } + UndoStack *undo_stack = CTX_wm_manager(C)->undo_stack; + return (undo_stack->step_active != NULL) && (undo_stack->step_active->prev != NULL); +} + void ED_OT_undo(wmOperatorType *ot) { /* identifiers */ @@ -473,7 +482,7 @@ void ED_OT_undo(wmOperatorType *ot) /* api callbacks */ ot->exec = ed_undo_exec; - ot->poll = ed_undo_is_init_and_screenactive_poll; + ot->poll = ed_undo_poll; } void ED_OT_undo_push(wmOperatorType *ot) @@ -498,6 +507,15 @@ void ED_OT_undo_push(wmOperatorType *ot) ""); } +static bool ed_redo_poll(bContext *C) +{ + if (!ed_undo_is_init_and_screenactive_poll(C)) { + return false; + } + UndoStack *undo_stack = CTX_wm_manager(C)->undo_stack; + return (undo_stack->step_active != NULL) && (undo_stack->step_active->next != NULL); +} + void ED_OT_redo(wmOperatorType *ot) { /* identifiers */ @@ -507,7 +525,7 @@ void ED_OT_redo(wmOperatorType *ot) /* api callbacks */ ot->exec = ed_redo_exec; - ot->poll = ed_undo_is_init_and_screenactive_poll; + ot->poll = ed_redo_poll; } void ED_OT_undo_redo(wmOperatorType *ot) @@ -697,6 +715,16 @@ static int undo_history_exec(bContext *C, wmOperator *op) return OPERATOR_CANCELLED; } +static bool undo_history_poll(bContext *C) +{ + if (!ed_undo_is_init_and_screenactive_poll(C)) { + return false; + } + UndoStack *undo_stack = CTX_wm_manager(C)->undo_stack; + /* More than just original state entry. */ + return BLI_listbase_count_at_most(&undo_stack->steps, 2) > 1; +} + void ED_OT_undo_history(wmOperatorType *ot) { /* identifiers */ @@ -707,7 +735,7 @@ void ED_OT_undo_history(wmOperatorType *ot) /* api callbacks */ ot->invoke = undo_history_invoke; ot->exec = undo_history_exec; - ot->poll = ed_undo_is_init_and_screenactive_poll; + ot->poll = undo_history_poll; RNA_def_int(ot->srna, "item", 0, 0, INT_MAX, "Item", "", 0, INT_MAX); } -- cgit v1.2.3