tdf#117935 Accessible text-attributes-changed signals...

... should only be emitted when the text attributes have changed [a11y]
second attempt.

This appears to have begin at

    commit 7d9bb549
    Date:   Mon Jun 2 15:00:50 2014 +0000
    Related: #i124638# Second step of DrawingLayer FillAttributes...

Which accidentally removed the aWhichSublist param from the SwUpdateAttr
constructor in SwpHints::TryInsertHint.

Change-Id: If435ea71e8d84e0d8497cd7106cfdbebcc6af7a0
Reviewed-on: https://gerrit.libreoffice.org/66719
Tested-by: Jenkins
Reviewed-by: Noel Grandin <noel.grandin@collabora.co.uk>

sw/inc/hints.hxx

@@ -136,9 +136,11 @@ private:
     sal_Int32 const m_nStart;
     sal_Int32 const m_nEnd;
     sal_uInt16 const m_nWhichAttr;
+    std::vector<sal_uInt16> m_aWhichFmtAttrs; // attributes changed inside RES_TXTATR_AUTOFMT
 
 public:
     SwUpdateAttr( sal_Int32 nS, sal_Int32 nE, sal_uInt16 nW );
+    SwUpdateAttr( sal_Int32 nS, sal_Int32 nE, sal_uInt16 nW, std::vector<sal_uInt16> aW );
 
     sal_Int32 getStart() const
     {
@@ -154,6 +156,11 @@ public:
     {
         return m_nWhichAttr;
     }
+
+    const std::vector<sal_uInt16>& getFmtAttrs() const
+    {
+        return m_aWhichFmtAttrs;
+    }
 };
 
 /** SwRefMarkFieldUpdate is sent when the referencemarks should be updated.

sw/source/core/attr/hints.cxx

@@ -70,6 +70,11 @@ SwUpdateAttr::SwUpdateAttr( sal_Int32 nS, sal_Int32 nE, sal_uInt16 nW )
 {
 }
 
+SwUpdateAttr::SwUpdateAttr( sal_Int32 nS, sal_Int32 nE, sal_uInt16 nW, std::vector<sal_uInt16> aW )
+    : SwMsgPoolItem( RES_UPDATE_ATTR ), m_nStart( nS ), m_nEnd( nE ), m_nWhichAttr( nW ), m_aWhichFmtAttrs( aW )
+{
+}
+
 SwRefMarkFieldUpdate::SwRefMarkFieldUpdate( OutputDevice* pOutput )
     : SwMsgPoolItem( RES_REFMARKFLD_UPDATE ),
     pOut( pOutput )

sw/source/core/text/txtfrm.cxx

@@ -1875,6 +1875,15 @@ static bool isA11yRelevantAttribute(sal_uInt16 nWhich)
     return nWhich != RES_CHRATR_RSID;
 }
 
+static bool hasA11yRelevantAttribute( const std::vector<sal_uInt16>& rWhichFmtAttr )
+{
+    for( sal_uInt16 nWhich : rWhichFmtAttr )
+        if ( isA11yRelevantAttribute( nWhich ) )
+            return true;
+
+    return false;
+}
+
 // Note: for now this overrides SwClient::SwClientNotify; the intermediary
 // classes still override SwClient::Modify, which should continue to work
 // as their implementation of SwClientNotify is SwClient's which calls Modify.
@@ -2132,8 +2141,10 @@ void SwTextFrame::SwClientNotify(SwModify const& rModify, SfxHint const& rHint)
         break;
         case RES_UPDATE_ATTR:
         {
-            sal_Int32 const nNPos = static_cast<const SwUpdateAttr*>(pNew)->getStart();
-            sal_Int32 const nNLen = static_cast<const SwUpdateAttr*>(pNew)->getEnd() - nNPos;
+            const SwUpdateAttr* pNewUpdate = static_cast<const SwUpdateAttr*>(pNew);
+
+            sal_Int32 const nNPos = pNewUpdate->getStart();
+            sal_Int32 const nNLen = pNewUpdate->getEnd() - nNPos;
             nPos = MapModelToView(&rNode, nNPos);
             nLen = MapModelToView(&rNode, nNPos + nNLen) - nPos;
             if( IsIdxInside( nPos, nLen ) )
@@ -2147,7 +2158,7 @@ void SwTextFrame::SwClientNotify(SwModify const& rModify, SfxHint const& rHint)
                     nLen = TextFrameIndex(1);
 
                 InvalidateRange_( SwCharRange( nPos, nLen) );
-                const sal_uInt16 nTmp = static_cast<const SwUpdateAttr*>(pNew)->getWhichAttr();
+                const sal_uInt16 nTmp = pNewUpdate->getWhichAttr();
 
                 if( ! nTmp || RES_TXTATR_CHARFMT == nTmp || RES_TXTATR_INETFMT == nTmp || RES_TXTATR_AUTOFMT == nTmp ||
                     RES_FMT_CHG == nTmp || RES_ATTRSET_CHG == nTmp )
@@ -2156,6 +2167,16 @@ void SwTextFrame::SwClientNotify(SwModify const& rModify, SfxHint const& rHint)
                     lcl_SetScriptInval( *this, nPos );
                 }
             }
+
+            if( isA11yRelevantAttribute( pNewUpdate->getWhichAttr() ) &&
+                hasA11yRelevantAttribute( pNewUpdate->getFmtAttrs() ) )
+            {
+                SwViewShell* pViewSh = getRootFrame() ? getRootFrame()->GetCurrShell() : nullptr;
+                if ( pViewSh  )
+                {
+                    pViewSh->InvalidateAccessibleParaAttrs( *this );
+                }
+            }
         }
         break;
         case RES_OBJECTDYING:

sw/source/core/txtnode/thints.cxx

@@ -3253,7 +3253,7 @@ bool SwpHints::TryInsertHint(
     // ... and notify listeners
     if ( rNode.HasWriterListeners() )
     {
-        SwUpdateAttr aHint(nHtStart, nHintEnd, nWhich);
+        SwUpdateAttr aHint(nHtStart, nHintEnd, nWhich, aWhichSublist);
 
         rNode.ModifyNotification( nullptr, &aHint );
     }