diff --git a/source/NVDAObjects/UIA/winConsoleUIA.py b/source/NVDAObjects/UIA/winConsoleUIA.py index 54cad8a662e..b472f2f99b8 100644 --- a/source/NVDAObjects/UIA/winConsoleUIA.py +++ b/source/NVDAObjects/UIA/winConsoleUIA.py @@ -20,16 +20,21 @@ class ConsoleUIATextInfo(UIATextInfo): - "A TextInfo implementation for consoles with an IMPROVED, but not FORMATTED, API level." + "A TextInfo implementation for consoles with a FORMATTED API level." + + # #13157: In FORMATTED consoles, the review cursor is not bounded to the + # visible text, allowing text to be freely explored. + # However, it is often useful to jump to the top or bottom of a screen of + # text when viewing paginated output. To enable this use case, make + # POSITION_FIRST and POSITION_LAST relative to the visible text. + _RESTRICT_TO_VISIBLE_POSITIONS = ( + textInfos.POSITION_FIRST, + textInfos.POSITION_LAST + ) + def __init__(self, obj, position, _rangeObj=None): collapseToEnd = None - # We want to limit textInfos to just the visible part of the console. - # Therefore we specifically handle POSITION_FIRST, POSITION_LAST and POSITION_ALL. - if not _rangeObj and position in ( - textInfos.POSITION_FIRST, - textInfos.POSITION_LAST, - textInfos.POSITION_ALL - ): + if not _rangeObj and position in self._RESTRICT_TO_VISIBLE_POSITIONS: try: _rangeObj, collapseToEnd = self._getBoundingRange(obj, position) except (COMError, RuntimeError): @@ -61,6 +66,20 @@ def _getBoundingRange(self, obj, position): collapseToEnd = True return (_rangeObj, collapseToEnd) + +class ConsoleUIATextInfoBounded(ConsoleUIATextInfo): + "A TextInfo implementation for consoles with an IMPROVED, but not FORMATTED, API level." + + # Since pre-FORMATTED consoles have thousands of empty lines at the end of + # output, we want to limit textInfos to just the visible part of the + # console. Therefore we specifically handle POSITION_FIRST, POSITION_LAST + # and POSITION_ALL. + _RESTRICT_TO_VISIBLE_POSITIONS = ( + textInfos.POSITION_FIRST, + textInfos.POSITION_LAST, + textInfos.POSITION_ALL + ) + def move(self, unit, direction, endPoint=None): oldInfo = None if self.basePosition != textInfos.POSITION_CARET: @@ -369,9 +388,9 @@ def _get_TextInfo(self): ConsoleUIATextInfoWorkaroundEndInclusive fixes expand/collapse and implements word movement.""" if self.apiLevel >= WinConsoleAPILevel.FORMATTED: - return UIATextInfo # No TextInfo workarounds needed - elif self.apiLevel >= WinConsoleAPILevel.IMPROVED: return ConsoleUIATextInfo + elif self.apiLevel >= WinConsoleAPILevel.IMPROVED: + return ConsoleUIATextInfoBounded else: return ConsoleUIATextInfoWorkaroundEndInclusive @@ -420,6 +439,9 @@ def findExtraOverlayClasses(obj, clsList): class WinTerminalUIA(EnhancedTermTypedCharSupport): + def _get_TextInfo(self): + return ConsoleUIATextInfo + def event_UIA_notification(self, **kwargs): """ In an upcoming terminal release, UIA notification events will be sent