[API CHANGE] a11y: Use XAccessible for relation targets

Use a Sequence of XAccessible rather than its base
interface XInterface for AccessibleRelation's TargetSet.

As the targets are accessible objects as well,
anything other than XAccessible doesn't make much sense.
Using XAccessible right away makes that clearer and avoids
the need to query the XAccessible interface.

(The winaccessibility bridge was already using
`static_cast`, relying on the fact that the objects
are XAccessibles.)

The a11y UNO API is not published, so an API change
should be unproblematic.

Change-Id: I7f08e98d1ec303d5343d9a7954187cdd71495ebc
Reviewed-on: https://gerrit.libreoffice.org/c/core/+/166586
Reviewed-by: Michael Weghorn <m.weghorn@posteo.de>
Tested-by: Jenkins

3 files changed, 3 insertions, 3 deletions

diff --git a/svx/source/accessibility/AccessibleControlShape.cxx b/svx/source/accessibility/AccessibleControlShape.cxx
index 3a6605fda632..2f59e302bb73 100644
--- a/svx/source/accessibility/AccessibleControlShape.cxx
+++ b/svx/source/accessibility/AccessibleControlShape.cxx
@@ -551,7 +551,7 @@ Reference< XAccessibleRelationSet > SAL_CALL AccessibleControlShape::getAccessib
     {
         Reference < XAccessible > xAcc (pCtlAccShape->getAccessibleContext(), UNO_QUERY);
 
-        css::uno::Sequence< css::uno::Reference< css::uno::XInterface > > aSequence { xAcc };
+        css::uno::Sequence<css::uno::Reference<XAccessible>> aSequence { xAcc };
         if( getAccessibleRole() == AccessibleRole::RADIO_BUTTON )
         {
             pRelationSetHelper->AddRelation( AccessibleRelation( AccessibleRelationType::MEMBER_OF, aSequence ) );
diff --git a/svx/source/accessibility/AccessibleShape.cxx b/svx/source/accessibility/AccessibleShape.cxx
index 7a1770b8fd42..1504c6869e75 100644
--- a/svx/source/accessibility/AccessibleShape.cxx
+++ b/svx/source/accessibility/AccessibleShape.cxx
@@ -360,7 +360,7 @@ uno::Reference<XAccessibleRelationSet> SAL_CALL
     rtl::Reference<::utl::AccessibleRelationSetHelper> pRelationSet = new utl::AccessibleRelationSetHelper;
 
     //this mxshape is the captioned shape
-    uno::Sequence< uno::Reference< uno::XInterface > > aSequence { mpParent->GetAccessibleCaption(mxShape) };
+    uno::Sequence<uno::Reference<css::accessibility::XAccessible>> aSequence { mpParent->GetAccessibleCaption(mxShape) };
     if(aSequence[0])
     {
         pRelationSet->AddRelation(
diff --git a/svx/source/accessibility/svxrectctaccessiblecontext.cxx b/svx/source/accessibility/svxrectctaccessiblecontext.cxx
index 45360e6c862f..2ce9f857325a 100644
--- a/svx/source/accessibility/svxrectctaccessiblecontext.cxx
+++ b/svx/source/accessibility/svxrectctaccessiblecontext.cxx
@@ -480,7 +480,7 @@ Reference<XAccessibleRelationSet> SAL_CALL SvxRectCtlChildAccessibleContext::get
     rtl::Reference<utl::AccessibleRelationSetHelper> pRelationSetHelper = new utl::AccessibleRelationSetHelper;
     if( mxParent.is() )
     {
-        uno::Sequence< uno::Reference< uno::XInterface > > aSequence { mxParent };
+        uno::Sequence<uno::Reference<css::accessibility::XAccessible>> aSequence { mxParent };
         pRelationSetHelper->AddRelation( css::accessibility::AccessibleRelation( css::accessibility::AccessibleRelationType::MEMBER_OF, aSequence ) );
     }