return a reference to the created dialogs

docs/changelog.txt

@@ -90,6 +90,7 @@ changelog.txt uses a syntax similar to RST, with a few special sequences:
 - ``widgets.ToggleHotkeyLabel``: new ``CycleHotkeyLabel`` subclass that toggles between ``On`` and ``Off`` states
 - ``safe_index`` now properly handles lua sparse tables that are indexed by numbers
 - ``widgets``: unset values in ``frame_inset``-table default to ``0``
+- ``dialogs``: ``show*`` functions now return a reference to the created dialog
 
 # 0.47.05-r4
 

library/lua/gui/dialogs.lua

@@ -69,22 +69,26 @@ function MessageBox:onInput(keys)
 end
 
 function showMessage(title, text, tcolor, on_close)
-    MessageBox{
+    local mb = MessageBox{
         frame_title = title,
         text = text,
         text_pen = tcolor,
         on_close = on_close
-    }:show()
+    }
+    mb:show()
+    return mb
 end
 
 function showYesNoPrompt(title, text, tcolor, on_accept, on_cancel)
-    MessageBox{
+    local mb = MessageBox{
         frame_title = title,
         text = text,
         text_pen = tcolor,
         on_accept = on_accept,
         on_cancel = on_cancel,
-    }:show()
+    }
+    mb:show()
+    return mb
 end
 
 InputBox = defclass(InputBox, MessageBox)
@@ -133,7 +137,7 @@ function InputBox:onInput(keys)
 end
 
 function showInputPrompt(title, text, tcolor, input, on_input, on_cancel, min_width)
-    InputBox{
+    local ib = InputBox{
         frame_title = title,
         text = text,
         text_pen = tcolor,
@@ -141,7 +145,9 @@ function showInputPrompt(title, text, tcolor, input, on_input, on_cancel, min_wi
         on_input = on_input,
         on_cancel = on_cancel,
         frame_width = min_width,
-    }:show()
+    }
+    ib:show()
+    return ib
 end
 
 ListBox = defclass(ListBox, MessageBox)
@@ -201,7 +207,7 @@ function ListBox:init(info)
             on_submit2 = on_submit2,
             frame = { l = 0, r = 0},
             frame_inset = self.list_frame_inset,
-            row_height = info.row_height,
+            row_height = self.row_height,
         }
     }
 end
@@ -232,7 +238,7 @@ function ListBox:onInput(keys)
 end
 
 function showListPrompt(title, text, tcolor, choices, on_select, on_cancel, min_width, filter)
-    ListBox{
+    local lb = ListBox{
         frame_title = title,
         text = text,
         text_pen = tcolor,
@@ -241,7 +247,9 @@ function showListPrompt(title, text, tcolor, choices, on_select, on_cancel, min_
         on_cancel = on_cancel,
         frame_width = min_width,
         with_filter = filter,
-    }:show()
+    }
+    lb:show()
+    return lb
 end
 
 return _ENV