Implement AT-SPI selection bridging groundwork
Add the document selection adapter, integrate it through script utilities and major callers, and package the clipboard fallback work that was needed during manual testing on Wayland. Also include a handoff note for the still-open browser link-selection issue so other developers can continue from the current branch state without reconstructing the debug trail.
This commit is contained in:
223
tests/test_document_selection_regressions.py
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223
tests/test_document_selection_regressions.py
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import sys
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import types
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import unittest
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from contextlib import ExitStack
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from pathlib import Path
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from unittest import mock
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import gi
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gi.require_version("Gdk", "3.0")
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gi.require_version("Gtk", "3.0")
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sys.path.insert(0, str(Path(__file__).resolve().parents[1] / "src"))
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sys.modules.setdefault(
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"cthulhu.cthulhu_i18n",
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types.SimpleNamespace(
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C_=lambda _context, message: message,
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_=lambda message: message,
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ngettext=lambda singular, plural, count: singular if count == 1 else plural,
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),
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)
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sys.modules.setdefault(
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"cthulhu.cthulhu_platform",
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types.SimpleNamespace(
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version="test",
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revision="",
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tablesdir="",
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datadir="",
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),
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)
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from cthulhu.script_utilities import Utilities
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class FakeDocument:
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def __init__(self):
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self.currentSelections = []
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self.setCalls = []
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class FakeTextObject:
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def __init__(self, name, text, document):
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self.name = name
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self.text = text
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self.document = document
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self.next_obj = None
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self.prev_obj = None
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self.caret_offset = 0
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def __repr__(self):
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return f"<FakeTextObject {self.name}>"
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class DocumentSelectionRegressionTests(unittest.TestCase):
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def setUp(self):
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self.document = FakeDocument()
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self.first = FakeTextObject("first", "alpha", self.document)
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self.second = FakeTextObject("second", "beta", self.document)
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self.first.next_obj = self.second
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self.second.prev_obj = self.first
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self.script = types.SimpleNamespace(
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pointOfReference={},
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sayPhrase=mock.Mock(),
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speakMessage=mock.Mock(),
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)
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self.utility = object.__new__(Utilities)
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self.utility._script = self.script
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self.utility._clipboardHandlerId = None
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self.utility.expandEOCs = lambda obj, start=0, end=-1: obj.text[start:len(obj.text) if end == -1 else end]
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self.utility.queryNonEmptyText = lambda obj: obj if getattr(obj, "text", "") else None
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self.utility.findNextObject = lambda obj: getattr(obj, "next_obj", None)
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self.utility.findPreviousObject = lambda obj: getattr(obj, "prev_obj", None)
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self.utility.getDocumentForObject = lambda obj: self.document if isinstance(obj, FakeTextObject) else obj if obj is self.document else None
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self.utility.isSpreadSheetCell = lambda obj: False
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@staticmethod
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def _make_selection(start_object, start_offset, end_object, end_offset, start_is_active=False):
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return types.SimpleNamespace(
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start_object=start_object,
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start_offset=start_offset,
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end_object=end_object,
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end_offset=end_offset,
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start_is_active=start_is_active,
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)
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@staticmethod
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def _new_text_selection():
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return types.SimpleNamespace(
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start_object=None,
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start_offset=0,
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end_object=None,
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end_offset=0,
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start_is_active=False,
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)
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def _patch_environment(self, local_ranges=None):
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local_ranges = local_ranges or {}
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remove_selection = mock.Mock()
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set_selected_text = mock.Mock()
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def get_selected_ranges(obj):
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return list(local_ranges.get(obj, []))
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def get_character_count(obj):
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return len(obj.text)
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def get_caret_offset(obj):
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return obj.caret_offset
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def get_substring(obj, start, end):
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if end == -1:
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end = len(obj.text)
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return obj.text[start:end]
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def get_text_selections(document):
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return list(document.currentSelections)
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def set_text_selections(document, selections):
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document.setCalls.append(list(selections))
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document.currentSelections = list(selections)
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return True
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stack = ExitStack()
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stack.enter_context(mock.patch("cthulhu.script_utilities.AXObject.supports_text", side_effect=lambda obj: isinstance(obj, FakeTextObject)))
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stack.enter_context(mock.patch("cthulhu.script_utilities.AXText.get_selected_ranges", side_effect=get_selected_ranges))
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stack.enter_context(mock.patch("cthulhu.script_utilities.AXText.get_character_count", side_effect=get_character_count))
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stack.enter_context(mock.patch("cthulhu.script_utilities.AXText.get_caret_offset", side_effect=get_caret_offset))
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stack.enter_context(mock.patch("cthulhu.script_utilities.AXText.get_substring", side_effect=get_substring))
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stack.enter_context(mock.patch("cthulhu.script_utilities.AXText.set_selected_text", set_selected_text))
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stack.enter_context(mock.patch("cthulhu.script_utilities.AXText._get_n_selections", return_value=1))
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stack.enter_context(mock.patch("cthulhu.script_utilities.AXText._remove_selection", remove_selection))
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stack.enter_context(mock.patch("cthulhu.script_utilities.Atspi.Document.get_text_selections", side_effect=get_text_selections))
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stack.enter_context(mock.patch("cthulhu.script_utilities.Atspi.Document.set_text_selections", side_effect=set_text_selections))
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stack.enter_context(mock.patch("cthulhu.script_utilities.Atspi.TextSelection", side_effect=self._new_text_selection))
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stack.enter_context(
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mock.patch(
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"cthulhu.script_utilities.cthulhu.cthulhuApp",
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new=types.SimpleNamespace(
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settingsManager=types.SimpleNamespace(
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getSetting=lambda *_args, **_kwargs: False,
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)
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),
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create=True,
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)
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)
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self.addCleanup(stack.close)
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return remove_selection, set_selected_text
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def test_selected_text_uses_document_selection_when_local_ranges_are_empty(self):
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self.document.currentSelections = [
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self._make_selection(self.first, 2, self.second, 2),
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]
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self._patch_environment()
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self.assertEqual(self.utility.selectedText(self.first), ["pha", 2, 5])
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self.assertEqual(self.utility.selectedText(self.second), ["be", 0, 2])
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def test_all_text_selections_project_document_ranges_onto_each_object(self):
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self.document.currentSelections = [
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self._make_selection(self.first, 2, self.second, 2),
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]
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self._patch_environment()
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self.assertEqual(self.utility.allTextSelections(self.first), [(2, 5)])
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self.assertEqual(self.utility.allTextSelections(self.second), [(0, 2)])
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def test_all_selected_text_aggregates_multi_object_document_selection(self):
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self.document.currentSelections = [
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self._make_selection(self.first, 2, self.second, 2),
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]
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self._patch_environment()
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self.assertEqual(self.utility.allSelectedText(self.first), ("pha be", 2, 5))
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def test_clear_text_selection_uses_document_api_when_selection_is_authoritative(self):
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self.document.currentSelections = [
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self._make_selection(self.first, 1, self.second, 3),
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]
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remove_selection, _ = self._patch_environment()
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self.utility.clearTextSelection(self.first)
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self.assertEqual(self.document.setCalls, [[]])
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remove_selection.assert_not_called()
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def test_adjust_text_selection_preserves_other_document_ranges(self):
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self.document.currentSelections = [
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self._make_selection(self.first, 2, self.first, 4),
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self._make_selection(self.second, 1, self.second, 3),
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]
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self.first.caret_offset = 4
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_, set_selected_text = self._patch_environment()
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self.utility.adjustTextSelection(self.first, 5)
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self.assertEqual(len(self.document.setCalls), 1)
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stored = [
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(selection.start_object, selection.start_offset,
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selection.end_object, selection.end_offset,
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selection.start_is_active)
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for selection in self.document.setCalls[0]
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]
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self.assertEqual(
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stored,
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[
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(self.first, 2, self.first, 5, False),
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(self.second, 1, self.second, 3, False),
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],
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)
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set_selected_text.assert_not_called()
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def test_selected_text_falls_back_to_raw_substring_when_expand_eocs_is_empty(self):
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self.document.currentSelections = []
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self.utility.expandEOCs = lambda _obj, _start=0, _end=-1: ""
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self._patch_environment(local_ranges={self.first: [(2, 5)]})
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self.assertEqual(self.utility.selectedText(self.first), ["pha", 2, 5])
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if __name__ == "__main__":
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unittest.main()
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