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QComboBox: open popup on touch release if QStyleHints has setFocusOnTouchRelease()

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If we give focus to the combobox on touch release, we need to await opening
the popup until touch release as well. Otherwise we might end up showing
a popup for an unfocused combobox.

Especially on iOS, there is a strong coupling between focus object and
popup menus, which means that we effectively require the combobox to gain
focus before it can show the popup.

Change-Id: Ifb7ba091bb39b77f325cdbf61e00ab3e8ff2e522
Reviewed-by: Tor Arne Vestbø <tor.arne.vestbo@theqtcompany.com>
This commit is contained in:
Richard Moe Gustavsen 2015-03-25 11:23:39 +01:00
parent 9cb38baaf8
commit d3277bdf02
2 changed files with 32 additions and 16 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

46
src/widgets/widgets/qcombobox.cpp
View File

@ -53,6 +53,7 @@
#include <qmath.h>
#include <qmetaobject.h>
#include <qabstractproxymodel.h>
#include <qstylehints.h>
#include <private/qguiapplication_p.h>
#include <private/qapplication_p.h>
#include <private/qcombobox_p.h>
@ -3017,39 +3018,51 @@ bool QComboBox::event(QEvent *event)
void QComboBox::mousePressEvent(QMouseEvent *e)
{
Q_D(QComboBox);
if (!QGuiApplication::styleHints()->setFocusOnTouchRelease())
d->showPopupFromMouseEvent(e);
}
/*!
\reimp
*/
void QComboBoxPrivate::showPopupFromMouseEvent(QMouseEvent *e)
{
Q_Q(QComboBox);
QStyleOptionComboBox opt;
initStyleOption(&opt);
QStyle::SubControl sc = style()->hitTestComplexControl(QStyle::CC_ComboBox, &opt, e->pos(),
this);
if (e->button() == Qt::LeftButton && (sc == QStyle::SC_ComboBoxArrow || !isEditable())
&& !d->viewContainer()->isVisible()) {
q->initStyleOption(&opt);
QStyle::SubControl sc = q->style()->hitTestComplexControl(QStyle::CC_ComboBox, &opt, e->pos(), q);
if (e->button() == Qt::LeftButton
&& sc != QStyle::SC_None
&& (sc == QStyle::SC_ComboBoxArrow || !q->isEditable())
&& !viewContainer()->isVisible()) {
if (sc == QStyle::SC_ComboBoxArrow)
d->updateArrow(QStyle::State_Sunken);
updateArrow(QStyle::State_Sunken);
#ifdef QT_KEYPAD_NAVIGATION
//if the container already exists, then d->viewContainer() is safe to call
if (d->container) {
if (container) {
#endif
// We've restricted the next couple of lines, because by not calling
// viewContainer(), we avoid creating the QComboBoxPrivateContainer.
d->viewContainer()->blockMouseReleaseTimer.start(QApplication::doubleClickInterval());
d->viewContainer()->initialClickPosition = mapToGlobal(e->pos());
viewContainer()->blockMouseReleaseTimer.start(QApplication::doubleClickInterval());
viewContainer()->initialClickPosition = q->mapToGlobal(e->pos());
#ifdef QT_KEYPAD_NAVIGATION
}
#endif
showPopup();
q->showPopup();
// The code below ensures that regular mousepress and pick item still works
// If it was not called the viewContainer would ignore event since it didn't have
// a mousePressEvent first.
if (d->viewContainer())
d->viewContainer()->maybeIgnoreMouseButtonRelease = false;
if (viewContainer())
viewContainer()->maybeIgnoreMouseButtonRelease = false;
} else {
#ifdef QT_KEYPAD_NAVIGATION
if (QApplication::keypadNavigationEnabled() && sc == QStyle::SC_ComboBoxEditField && d->lineEdit) {
d->lineEdit->event(e); //so lineedit can move cursor, etc
if (QApplication::keypadNavigationEnabled() && sc == QStyle::SC_ComboBoxEditField && lineEdit) {
lineEdit->event(e); //so lineedit can move cursor, etc
return;
}
#endif
QWidget::mousePressEvent(e);
e->ignore();
}
}
@ -3059,8 +3072,9 @@ void QComboBox::mousePressEvent(QMouseEvent *e)
void QComboBox::mouseReleaseEvent(QMouseEvent *e)
{
Q_D(QComboBox);
Q_UNUSED(e);
d->updateArrow(QStyle::State_None);
if (QGuiApplication::styleHints()->setFocusOnTouchRelease() && hasFocus())
d->showPopupFromMouseEvent(e);
}
/*!

2
src/widgets/widgets/qcombobox_p.h
View File

@ -253,6 +253,7 @@ private:
QElapsedTimer popupTimer;
friend class QComboBox;
friend class QComboBoxPrivate;
};
class Q_AUTOTEST_EXPORT QComboMenuDelegate : public QAbstractItemDelegate
@ -372,6 +373,7 @@ public:
void modelChanged();
void updateViewContainerPaletteAndOpacity();
void updateFocusPolicy();
void showPopupFromMouseEvent(QMouseEvent *e);
#ifdef Q_OS_MAC
void cleanupNativePopup();