UI: support jumping to target object/bone

Complex rigs are built from many bones (often overlapping)
connected by constraints.

When investigating or debugging such rigs one often wants to switch to
the target of a constraint, or a parent bone, but it is difficult to do
manually due to overlap confusion.

This adds a right click menu option that automatically selects
and makes the target object or bone active for UI fields where a
suitable reference is readily available.

1 files changed, 17 insertions, 1 deletions

diff --git a/source/blender/editors/interface/interface_context_menu.c b/source/blender/editors/interface/interface_context_menu.c
index 03d941c2387..0ffc97444e1 100644
--- a/source/blender/editors/interface/interface_context_menu.c
+++ b/source/blender/editors/interface/interface_context_menu.c
@@ -361,7 +361,12 @@ bool ui_popup_context_menu_for_button(bContext *C, uiBut *but)
 		uiLayoutSetOperatorContext(layout, WM_OP_INVOKE_DEFAULT);
 	}
 
-	if (but->type == UI_BTYPE_TAB) {
+	const bool is_disabled = but->flag & UI_BUT_DISABLED;
+
+	if (is_disabled) {
+		/* Suppress editing commands. */
+	}
+	else if (but->type == UI_BTYPE_TAB) {
 		uiButTab *tab = (uiButTab *)but;
 		if (tab->menu) {
 			UI_menutype_draw(C, tab->menu, layout);
@@ -639,6 +644,17 @@ bool ui_popup_context_menu_for_button(bContext *C, uiBut *but)
 		}
 	}
 
+	/* Pointer properties and string properties with prop_search support jumping to target object/bone. */
+	if (but->rnapoin.data && but->rnaprop) {
+		const PropertyType type = RNA_property_type(but->rnaprop);
+
+		if ((type == PROP_POINTER) || (type == PROP_STRING && but->type == UI_BTYPE_SEARCH_MENU && but->search_func == ui_rna_collection_search_cb)) {
+			uiItemO(layout, CTX_IFACE_(BLT_I18NCONTEXT_OPERATOR_DEFAULT, "Jump To Target"),
+			        ICON_NONE, "UI_OT_jump_to_target_button");
+			uiItemS(layout);
+		}
+	}
+
 	/* Favorites Menu */
 	if (ui_but_is_user_menu_compatible(C, but)) {
 		uiBlock *block = uiLayoutGetBlock(layout);