diff options
author | Andre de la Rocha <andre.rocha@qt.io> | 2019-04-09 17:18:49 +0200 |
---|---|---|
committer | Andre de la Rocha <andre.rocha@qt.io> | 2019-04-12 15:38:21 +0000 |
commit | ab2c1e20fadc59a1a2365bda9e0e6b8eb295f5c9 (patch) | |
tree | d02430d58b4f678b4bad640d94bc64365929190c /src/plugins/platforms/windows/uiautomation/qwindowsuiamainprovider.cpp | |
parent | 21dcb96ddca357a6e8ace4b1c7252ec465e77727 (diff) |
Windows QPA: Fix QComboBox accessibility with screen readers
Screen readers like NVDA and Narrator were not reading the contents
of a QComboBox when changing its value using the keyboard, without
expanding it, due to missing UI Automation notifications in this case.
This change should also help in other cases where updated string
values were not notified to screen readers.
Fixes: QTBUG-75066
Change-Id: Id7f488380aec5ad27fd11b3cf854d44ab1b28688
Reviewed-by: Friedemann Kleint <Friedemann.Kleint@qt.io>
Diffstat (limited to 'src/plugins/platforms/windows/uiautomation/qwindowsuiamainprovider.cpp')
-rw-r--r-- | src/plugins/platforms/windows/uiautomation/qwindowsuiamainprovider.cpp | 37 |
1 files changed, 35 insertions, 2 deletions
diff --git a/src/plugins/platforms/windows/uiautomation/qwindowsuiamainprovider.cpp b/src/plugins/platforms/windows/uiautomation/qwindowsuiamainprovider.cpp index fad83fb165..44328492a6 100644 --- a/src/plugins/platforms/windows/uiautomation/qwindowsuiamainprovider.cpp +++ b/src/plugins/platforms/windows/uiautomation/qwindowsuiamainprovider.cpp @@ -146,9 +146,33 @@ void QWindowsUiaMainProvider::notifyStateChange(QAccessibleStateChangeEvent *eve void QWindowsUiaMainProvider::notifyValueChange(QAccessibleValueChangeEvent *event) { if (QAccessibleInterface *accessible = event->accessibleInterface()) { - if (QAccessibleValueInterface *valueInterface = accessible->valueInterface()) { - // Notifies changes in values of controls supporting the value interface. + if (accessible->role() == QAccessible::ComboBox && accessible->childCount() > 0) { + QAccessibleInterface *listacc = accessible->child(0); + if (listacc && listacc->role() == QAccessible::List) { + int count = listacc->childCount(); + for (int i = 0; i < count; ++i) { + QAccessibleInterface *item = listacc->child(i); + if (item && item->text(QAccessible::Name) == event->value()) { + if (!item->state().selected) { + if (QAccessibleActionInterface *actionInterface = item->actionInterface()) + actionInterface->doAction(QAccessibleActionInterface::toggleAction()); + } + break; + } + } + } + } + if (event->value().type() == QVariant::String) { + if (QWindowsUiaMainProvider *provider = providerForAccessible(accessible)) { + // Notifies changes in string values. + VARIANT oldVal, newVal; + clearVariant(&oldVal); + setVariantString(event->value().toString(), &newVal); + QWindowsUiaWrapper::instance()->raiseAutomationPropertyChangedEvent(provider, UIA_ValueValuePropertyId, oldVal, newVal); + } + } else if (QAccessibleValueInterface *valueInterface = accessible->valueInterface()) { if (QWindowsUiaMainProvider *provider = providerForAccessible(accessible)) { + // Notifies changes in values of controls supporting the value interface. VARIANT oldVal, newVal; clearVariant(&oldVal); setVariantDouble(valueInterface->currentValue().toDouble(), &newVal); @@ -158,6 +182,15 @@ void QWindowsUiaMainProvider::notifyValueChange(QAccessibleValueChangeEvent *eve } } +void QWindowsUiaMainProvider::notifySelectionChange(QAccessibleEvent *event) +{ + if (QAccessibleInterface *accessible = event->accessibleInterface()) { + if (QWindowsUiaMainProvider *provider = providerForAccessible(accessible)) { + QWindowsUiaWrapper::instance()->raiseAutomationEvent(provider, UIA_SelectionItem_ElementSelectedEventId); + } + } +} + // Notifies changes in text content and selection state of text controls. void QWindowsUiaMainProvider::notifyTextChange(QAccessibleEvent *event) { |