lok: a11y: impress: help screen reader to report shape selection

Refactored LOKDocumentFocusListener::notifyEvent.

Implemented 2 new callbacks:
- LOK_CALLBACK_A11Y_EDITING_IN_SELECTION_STATE: it says the client if
editing in a shape or cell is active or it isn't.
- LOK_CALLBACK_A11Y_SELECTION_CHANGED: it says if a shape has been
selected/unselected, the name of the shape and text content are sent
too for being reported by a screen reader.

(cherry picked from commit 76899152ec3d1924cc72d2b869e197a1e34a0a1a)

Conflicts:
sfx2/source/view/viewsh.cxx

Change-Id: I644bcc7daeb8772805688a9bccdabd0631ce0a22
Reviewed-on: https://gerrit.libreoffice.org/c/core/+/158562
Tested-by: Jenkins
Reviewed-by: Miklos Vajna <vmiklos@collabora.com>

1 files changed, 17 insertions, 0 deletions

diff --git a/svx/source/accessibility/ChildrenManagerImpl.cxx b/svx/source/accessibility/ChildrenManagerImpl.cxx
index cc107bc4b0df..96e27c079e9b 100644
--- a/svx/source/accessibility/ChildrenManagerImpl.cxx
+++ b/svx/source/accessibility/ChildrenManagerImpl.cxx
@@ -1008,6 +1008,23 @@ void ChildrenManagerImpl::UpdateSelection()
         }
     }
 
+    // We need to know when text content is no more edited but shape is still selected.
+    // For instance when ESC is pressed.
+    // The only difference is provided by nSelectedChildCount: on editing is equal to 1.
+    // In the following a shape get selected, but it was already selected, anyway editing is no more active.
+    if (comphelper::LibreOfficeKit::isActive() && pNewFocusedShape && nAddSelect == 0)
+    {
+        sal_Int64 nChildCount = pNewFocusedShape->getAccessibleChildCount();
+        sal_Int64 nSelectedChildCount = pNewFocusedShape->getSelectedAccessibleChildCount();
+        if (nChildCount > 0 && nSelectedChildCount == 0)
+        {
+            Reference< XAccessible > xShape(pNewFocusedShape);
+            uno::Any anyShape;
+            anyShape <<= xShape;
+            mrContext.CommitChange(AccessibleEventId::SELECTION_CHANGED,anyShape,uno::Any(), -1);
+        }
+    }
+
     // Remember whether there is a shape that now has the focus.
     mpFocusedShape = pNewFocusedShape;
 }