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Add ExpandCollapse UI Automation pattern to combo boxes

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Also add support to expandable/expanded states to QAccessibleComboBox
in widgets. QtDeclarative will still require updates so that QML combo
boxes report the expanded/collapsed state and react to UIA actions.

Task-number: QTBUG-103591
Change-Id: Iff8ba5e3143778ce17998dbe7f5f76cae658dc19
Reviewed-by: Volker Hilsheimer <volker.hilsheimer@qt.io>
(cherry picked from commit ecd41111a3a7100f20e72b811b1010bc45e94127)
Reviewed-by: Qt Cherry-pick Bot <cherrypick_bot@qt-project.org>
This commit is contained in:
André de la Rocha 2022-05-25 14:56:02 +02:00 committed by Qt Cherry-pick Bot
parent 775b73a4eb
commit 30daa8248e
4 changed files with 26 additions and 7 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

16
src/plugins/platforms/windows/uiautomation/qwindowsuiaexpandcollapseprovider.cpp
View File

@ -16,6 +16,14 @@ QT_BEGIN_NAMESPACE
using namespace QWindowsUiAutomation;
static bool isExpanded(QAccessibleInterface *accessible)
{
Q_ASSERT(accessible);
if (accessible->role() == QAccessible::MenuItem)
return accessible->childCount() > 0 && !accessible->child(0)->state().invisible;
else
return accessible->state().expandable && accessible->state().expanded;
}
QWindowsUiaExpandCollapseProvider::QWindowsUiaExpandCollapseProvider(QAccessible::Id id) :
QWindowsUiaBaseProvider(id)
@ -36,7 +44,7 @@ HRESULT STDMETHODCALLTYPE QWindowsUiaExpandCollapseProvider::Expand()
if (!actionInterface)
return UIA_E_ELEMENTNOTAVAILABLE;
if (accessible->childCount() > 0 && accessible->child(0)->state().invisible)
if (!isExpanded(accessible))
actionInterface->doAction(QAccessibleActionInterface::showMenuAction());
return S_OK;
@ -54,7 +62,7 @@ HRESULT STDMETHODCALLTYPE QWindowsUiaExpandCollapseProvider::Collapse()
if (!actionInterface)
return UIA_E_ELEMENTNOTAVAILABLE;
if (accessible->childCount() > 0 && !accessible->child(0)->state().invisible)
if (isExpanded(accessible))
actionInterface->doAction(QAccessibleActionInterface::showMenuAction());
return S_OK;
@ -72,9 +80,7 @@ HRESULT STDMETHODCALLTYPE QWindowsUiaExpandCollapseProvider::get_ExpandCollapseS
if (!accessible)
return UIA_E_ELEMENTNOTAVAILABLE;
if (accessible->childCount() > 0)
*pRetVal = accessible->child(0)->state().invisible ?
ExpandCollapseState_Collapsed : ExpandCollapseState_Expanded;
*pRetVal = isExpanded(accessible) ? ExpandCollapseState_Expanded : ExpandCollapseState_Collapsed;
return S_OK;
}

5
src/plugins/platforms/windows/uiautomation/qwindowsuiamainprovider.cpp
View File

@ -342,9 +342,10 @@ HRESULT QWindowsUiaMainProvider::GetPatternProvider(PATTERNID idPattern, IUnknow
break;
case UIA_ExpandCollapsePatternId:
// Menu items with submenus.
if (accessible->role() == QAccessible::MenuItem
if ((accessible->role() == QAccessible::MenuItem
&& accessible->childCount() > 0
&& accessible->child(0)->role() == QAccessible::PopupMenu) {
&& accessible->child(0)->role() == QAccessible::PopupMenu)
|| accessible->role() == QAccessible::ComboBox) {
*pRetVal = new QWindowsUiaExpandCollapseProvider(id());
}
break;

10
src/widgets/accessible/complexwidgets.cpp
View File

@ -350,6 +350,16 @@ QString QAccessibleComboBox::text(QAccessible::Text t) const
return str;
}
QAccessible::State QAccessibleComboBox::state() const
{
QAccessible::State s = QAccessibleWidget::state();
s.expandable = true;
s.expanded = isValid() && comboBox()->view()->isVisible();
return s;
}
QStringList QAccessibleComboBox::actionNames() const
{
return QStringList() << showMenuAction() << pressAction();

2
src/widgets/accessible/complexwidgets_p.h
View File

@ -102,6 +102,8 @@ public:
QString text(QAccessible::Text t) const override;
QAccessible::State state() const override;
// QAccessibleActionInterface
QStringList actionNames() const override;
QString localizedActionDescription(const QString &actionName) const override;