UI: locate popover w/ active item under cursor

Use when popover has no parent, useful for accessing the toolbar.

1 files changed, 14 insertions, 1 deletions

diff --git a/source/blender/editors/interface/interface_region_popover.c b/source/blender/editors/interface/interface_region_popover.c
index 6be76572e0e..2f654b4f7cd 100644
--- a/source/blender/editors/interface/interface_region_popover.c
+++ b/source/blender/editors/interface/interface_region_popover.c
@@ -178,10 +178,23 @@ static uiBlock *ui_block_func_POPOVER(bContext *C, uiPopupBlockHandle *handle, v
 	}
 	else {
 		/* Not attached to a button. */
-		int offset[2] = {0, 0};  /* Dummy. */
+		int offset[2] = {0, 0};
 		UI_block_flag_enable(block, UI_BLOCK_LOOP);
 		UI_block_direction_set(block, block->direction);
 		block->minbounds = UI_MENU_WIDTH_MIN;
+
+		uiBut *but = NULL;
+		for (but = block->buttons.first; but; but = but->next) {
+			if (but->flag & (UI_SELECT | UI_SELECT_DRAW)) {
+				break;
+			}
+		}
+
+		if (but) {
+			offset[0] = -(but->rect.xmin + 0.8f * BLI_rctf_size_x(&but->rect));
+			offset[1] = -(but->rect.ymin + 0.5f * BLI_rctf_size_y(&but->rect));
+		}
+
 		UI_block_bounds_set_popup(block, block_margin, offset[0], offset[1]);
 	}