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-rw-r--r--qutebrowser/utils/qtutils.py65
1 files changed, 61 insertions, 4 deletions
diff --git a/qutebrowser/utils/qtutils.py b/qutebrowser/utils/qtutils.py
index cc34057ef..781e43f08 100644
--- a/qutebrowser/utils/qtutils.py
+++ b/qutebrowser/utils/qtutils.py
@@ -32,7 +32,7 @@ import pathlib
import operator
import contextlib
from typing import (Any, AnyStr, TYPE_CHECKING, BinaryIO, IO, Iterator,
- Optional, Union, Tuple, Protocol, cast)
+ Optional, Union, Tuple, Protocol, cast, TypeVar)
from qutebrowser.qt import machinery, sip
from qutebrowser.qt.core import (qVersion, QEventLoop, QDataStream, QByteArray,
@@ -46,6 +46,7 @@ except ImportError: # pragma: no cover
if TYPE_CHECKING:
from qutebrowser.qt.webkit import QWebHistory
from qutebrowser.qt.webenginecore import QWebEngineHistory
+ from typing_extensions import TypeGuard # added in Python 3.10
from qutebrowser.misc import objects
from qutebrowser.utils import usertypes, utils
@@ -102,7 +103,11 @@ def version_check(version: str,
parsed = utils.VersionNumber.parse(version)
op = operator.eq if exact else operator.ge
- result = op(utils.VersionNumber.parse(qVersion()), parsed)
+
+ qversion = qVersion()
+ assert qversion is not None
+ result = op(utils.VersionNumber.parse(qversion), parsed)
+
if compiled and result:
# qVersion() ==/>= parsed, now check if QT_VERSION_STR ==/>= parsed.
result = op(utils.VersionNumber.parse(QT_VERSION_STR), parsed)
@@ -535,24 +540,58 @@ def interpolate_color(
if colorspace is None:
if percent == 100:
- return QColor(*end.getRgb())
+ r, g, b, a = end.getRgb()
+ assert r is not None
+ assert g is not None
+ assert b is not None
+ assert a is not None
+ return QColor(r, g, b, a)
else:
- return QColor(*start.getRgb())
+ r, g, b, a = start.getRgb()
+ assert r is not None
+ assert g is not None
+ assert b is not None
+ assert a is not None
+ return QColor(r, g, b, a)
out = QColor()
if colorspace == QColor.Spec.Rgb:
r1, g1, b1, a1 = start.getRgb()
r2, g2, b2, a2 = end.getRgb()
+ assert r1 is not None
+ assert g1 is not None
+ assert b1 is not None
+ assert a1 is not None
+ assert r2 is not None
+ assert g2 is not None
+ assert b2 is not None
+ assert a2 is not None
components = _get_color_percentage(r1, g1, b1, a1, r2, g2, b2, a2, percent)
out.setRgb(*components)
elif colorspace == QColor.Spec.Hsv:
h1, s1, v1, a1 = start.getHsv()
h2, s2, v2, a2 = end.getHsv()
+ assert h1 is not None
+ assert s1 is not None
+ assert v1 is not None
+ assert a1 is not None
+ assert h2 is not None
+ assert s2 is not None
+ assert v2 is not None
+ assert a2 is not None
components = _get_color_percentage(h1, s1, v1, a1, h2, s2, v2, a2, percent)
out.setHsv(*components)
elif colorspace == QColor.Spec.Hsl:
h1, s1, l1, a1 = start.getHsl()
h2, s2, l2, a2 = end.getHsl()
+ assert h1 is not None
+ assert s1 is not None
+ assert l1 is not None
+ assert a1 is not None
+ assert h2 is not None
+ assert s2 is not None
+ assert l2 is not None
+ assert a2 is not None
components = _get_color_percentage(h1, s1, l1, a1, h2, s2, l2, a2, percent)
out.setHsl(*components)
else:
@@ -611,3 +650,21 @@ def extract_enum_val(val: Union[sip.simplewrapper, int, enum.Enum]) -> int:
elif isinstance(val, sip.simplewrapper):
return int(val) # type: ignore[call-overload]
return val
+
+T = TypeVar("T")
+
+def is_not_none(obj: Optional[T]) -> "TypeGuard[T]":
+ """Check if a Qt object is None.
+
+ PyQt6 marks things as Optional[...], but PyQt5 doesn't.
+ By using this function, we can use the same type hints for both.
+ """
+ return obj is not None
+
+
+if machinery.IS_QT5:
+ def allow_none(obj: Optional[T]) -> T:
+ return cast(T, obj)
+else:
+ def allow_none(obj: Optional[T]) -> Optional[T]:
+ return obj