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Skip proxy widgets that can't take focus when (back)tabbing

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Fixes regression introduced in b4981f9d4ca914c6ecaa49bfdd69e51806a3671a,
due to which it was possible to back-tab into a widget even though it or
its focusProxy had a NoFocus policy.

As a drive-by, split the complicated if-statement up a bit for improved
readability.

Change-Id: Ib0ac2604076e812e340b11534c23ae8ae958d082
Fixes: QTBUG-76924
Reviewed-by: Richard Moe Gustavsen <richard.gustavsen@qt.io>
(cherry picked from commit 0dbd2dd86389c0705dbe9f518aed12f609ed09a1)
Reviewed-by: Volker Hilsheimer <volker.hilsheimer@qt.io>
This commit is contained in:
Volker Hilsheimer 2020-06-22 14:26:09 +02:00
parent 9115c84103
commit d6bda220f7
2 changed files with 53 additions and 4 deletions
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10
src/widgets/kernel/qapplication.cpp
View File

@ -2165,10 +2165,12 @@ QWidget *QApplicationPrivate::focusNextPrevChild_helper(QWidget *toplevel, bool
// \a next). This is to ensure that we can tab in and out of compound widgets
// without getting stuck in a tab-loop between parent and child.
QWidget *focusProxy = test->d_func()->deepestFocusProxy();
if ((test->focusPolicy() & focus_flag) == focus_flag
&& !(next && focusProxy && focusProxy->isAncestorOf(test))
&& !(!next && focusProxy && test->isAncestorOf(focusProxy))
const bool canTakeFocus = ((focusProxy ? focusProxy->focusPolicy() : test->focusPolicy())
& focus_flag) == focus_flag;
const bool composites = focusProxy ? (next ? focusProxy->isAncestorOf(test)
: test->isAncestorOf(focusProxy))
: false;
if (canTakeFocus && !composites
&& test->isVisibleTo(toplevel) && test->isEnabled()
&& !(w->windowType() == Qt::SubWindow && !w->isAncestorOf(test))
&& (toplevel->windowType() != Qt::SubWindow || toplevel->isAncestorOf(test))) {

47
tests/auto/widgets/kernel/qwidget/tst_qwidget.cpp
View File

@ -67,6 +67,7 @@
#include <qproxystyle.h>
#include <QtWidgets/QGraphicsView>
#include <QtWidgets/QGraphicsProxyWidget>
#include <QtWidgets/QSpinBox>
#include <QtGui/qwindow.h>
#include <qtimer.h>
@ -180,6 +181,7 @@ private slots:
void reverseTabOrder();
void tabOrderWithProxy();
void tabOrderWithCompoundWidgets();
void tabOrderWithCompoundWidgetsNoFocusPolicy();
void tabOrderNoChange();
void tabOrderNoChange2();
#if defined(Q_OS_WIN) && !defined(Q_OS_WINRT)
@ -1964,6 +1966,51 @@ static void dumpFocusChain(QWidget *start, bool bForward, const char *desc = nul
#endif
}
void tst_QWidget::tabOrderWithCompoundWidgetsNoFocusPolicy()
{
Container container;
container.setWindowTitle(QLatin1String(QTest::currentTestFunction()));
QSpinBox spinbox1;
spinbox1.setObjectName("spinbox1");
QSpinBox spinbox2;
spinbox2.setObjectName("spinbox2");
QSpinBox spinbox3;
spinbox3.setObjectName("spinbox3");
spinbox1.setFocusPolicy(Qt::StrongFocus);
spinbox2.setFocusPolicy(Qt::NoFocus);
spinbox3.setFocusPolicy(Qt::StrongFocus);
container.box->addWidget(&spinbox1);
container.box->addWidget(&spinbox2);
container.box->addWidget(&spinbox3);
container.show();
container.activateWindow();
QApplication::setActiveWindow(&container);
if (!QTest::qWaitForWindowActive(&container))
QSKIP("Window failed to activate, skipping test");
QVERIFY2(spinbox1.hasFocus(),
qPrintable(QApplication::focusWidget()->objectName()));
container.tab();
QVERIFY2(!spinbox2.hasFocus(),
qPrintable(QApplication::focusWidget()->objectName()));
QVERIFY2(spinbox3.hasFocus(),
qPrintable(QApplication::focusWidget()->objectName()));
container.tab();
QVERIFY2(spinbox1.hasFocus(),
qPrintable(QApplication::focusWidget()->objectName()));
container.backTab();
QVERIFY2(spinbox3.hasFocus(),
qPrintable(QApplication::focusWidget()->objectName()));
container.backTab();
QVERIFY2(!spinbox2.hasFocus(),
qPrintable(QApplication::focusWidget()->objectName()));
QVERIFY2(spinbox1.hasFocus(),
qPrintable(QApplication::focusWidget()->objectName()));
}
void tst_QWidget::tabOrderNoChange()
{
QWidget w;