[Libreoffice-commits] core.git: Branch 'distro/collabora/cp-5.0' - sw/inc sw/source

[László Németh]

 sw/inc/ndgrf.hxx                 |    3 +++
 sw/source/core/doc/notxtfrm.cxx  |   15 ++++++++++-----
 sw/source/core/graphic/ndgrf.cxx |    7 +++++--
 3 files changed, 18 insertions(+), 7 deletions(-)

New commits:
commit 611be3d78d45c46c942b88e1149dfc428070fc71
Author: László Németh <laszlo.nemeth at collabora.com>
Date:   Fri Nov 27 21:59:30 2015 +0100

    tdf#95614 fix freezing with linked graphic
    
    When an unloaded linked picture comes into the visible view
    (including repainting a page), SwNoTextFrm::PaintPicture()
    starts a thread to load it in the background using the
    TriggerAsyncRetrieveInputStream() method of the graphic node.
    
    To avoid to start a second thread on the same graphic node,
    TriggerAsyncRetrieveInputStream() checks mpThreadConsumer,
    the graphic node member variable for the possible thread object.
    
    The problem is that when the thread finished and
    SwGrfNode::UpdateLinkWithInputStream() reset mpThreadConsumer,
    the graphic object of the graphic node is still in unloaded
    state (its type is GRAPHIC_DEFAULT or GRAPHIC_NONE instead of
    GRAPHIC_BITMAP or GRAPHIC_GDIMETAFILE) for a while, because
    its modification is solved asynchronously after several
    SvFileObject::GetData() calls. In the intermediate state
    of the graphic object, with the high priority repaints of
    the new scheduler, PaintPicture() could start new thread
    to load the image again.
    
    Using the new member variable SwGrfNode::mbUpdateLinkInProgress,
    this patch will prevent the graphic node to start newer thread
    unnecessarily.
    
    Change-Id: I9433f0fa4613294103a00a3955fc2f35d8863b59

diff --git a/sw/inc/ndgrf.hxx b/sw/inc/ndgrf.hxx
index 668c5f5..e7b2261 100644
--- a/sw/inc/ndgrf.hxx
+++ b/sw/inc/ndgrf.hxx
@@ -51,6 +51,7 @@ class SW_DLLPUBLIC SwGrfNode: public SwNoTextNode
 
     boost::shared_ptr< SwAsyncRetrieveInputStreamThreadConsumer > mpThreadConsumer;
     bool mbLinkedInputStreamReady;
+    bool mbUpdateLinkInProgress;
     com::sun::star::uno::Reference<com::sun::star::io::XInputStream> mxInputStream;
     bool mbIsStreamReadOnly;
 
@@ -198,6 +199,8 @@ public:
 
     boost::weak_ptr< SwAsyncRetrieveInputStreamThreadConsumer > GetThreadConsumer() { return mpThreadConsumer;}
     bool IsLinkedInputStreamReady() const { return mbLinkedInputStreamReady;}
+    bool IsUpdateLinkInProgress() const { return mbUpdateLinkInProgress;}
+    void SetUpdateLinkInProgress(bool b) { mbUpdateLinkInProgress = b; }
     void TriggerAsyncRetrieveInputStream();
     void ApplyInputStream(
         com::sun::star::uno::Reference<com::sun::star::io::XInputStream> xInputStream,
diff --git a/sw/source/core/doc/notxtfrm.cxx b/sw/source/core/doc/notxtfrm.cxx
index 02a815b..d943e6d 100644
--- a/sw/source/core/doc/notxtfrm.cxx
+++ b/sw/source/core/doc/notxtfrm.cxx
@@ -897,10 +897,11 @@ void SwNoTextFrm::PaintPicture( vcl::RenderContext* pOut, const SwRect &rGrfArea
             {
                 Size aTmpSz;
                 ::sfx2::SvLinkSource* pGrfObj = pGrfNd->GetLink()->GetObj();
-                if( !pGrfObj ||
-                    !pGrfObj->IsDataComplete() ||
-                    !(aTmpSz = pGrfNd->GetTwipSize()).Width() ||
-                    !aTmpSz.Height() || !pGrfNd->GetAutoFormatLvl() )
+                if ( ( !pGrfObj ||
+                       !pGrfObj->IsDataComplete() ||
+                       !(aTmpSz = pGrfNd->GetTwipSize()).Width() ||
+                       !aTmpSz.Height() || !pGrfNd->GetAutoFormatLvl() ) &&
+                    !pGrfNd->IsUpdateLinkInProgress() )
                 {
                     pGrfNd->TriggerAsyncRetrieveInputStream(); // #i73788#
                 }
@@ -909,9 +910,13 @@ void SwNoTextFrm::PaintPicture( vcl::RenderContext* pOut, const SwRect &rGrfArea
                     GetRealURL( *pGrfNd, aText );
                 ::lcl_PaintReplacement( aAlignedGrfArea, aText, *pShell, this, false );
                 bContinue = false;
+            } else if ( rGrfObj.GetType() != GRAPHIC_DEFAULT &&
+                      rGrfObj.GetType() != GRAPHIC_NONE &&
+                      pGrfNd->IsUpdateLinkInProgress() )
+            {
+                pGrfNd->SetUpdateLinkInProgress( false );
             }
         }
-
         if( bContinue )
         {
             if( rGrfObj.GetGraphic().IsSupportedGraphic())
diff --git a/sw/source/core/graphic/ndgrf.cxx b/sw/source/core/graphic/ndgrf.cxx
index 5c2867e..dbbe379 100644
--- a/sw/source/core/graphic/ndgrf.cxx
+++ b/sw/source/core/graphic/ndgrf.cxx
@@ -71,6 +71,7 @@ SwGrfNode::SwGrfNode(
     mpReplacementGraphic(0),
     // #i73788#
     mbLinkedInputStreamReady( false ),
+    mbUpdateLinkInProgress( false ),
     mbIsStreamReadOnly( false )
 {
     maGrfObj.SetSwapStreamHdl( LINK(this, SwGrfNode, SwapGraphic) );
@@ -89,6 +90,7 @@ SwGrfNode::SwGrfNode( const SwNodeIndex & rWhere,
     mpReplacementGraphic(0),
     // #i73788#
     mbLinkedInputStreamReady( false ),
+    mbUpdateLinkInProgress( false ),
     mbIsStreamReadOnly( false )
 {
     maGrfObj.SetSwapStreamHdl( LINK(this, SwGrfNode, SwapGraphic) );
@@ -112,6 +114,7 @@ SwGrfNode::SwGrfNode( const SwNodeIndex & rWhere,
     mpReplacementGraphic(0),
     // #i73788#
     mbLinkedInputStreamReady( false ),
+    mbUpdateLinkInProgress( false ),
     mbIsStreamReadOnly( false )
 {
     maGrfObj.SetSwapStreamHdl( LINK(this, SwGrfNode, SwapGraphic) );
@@ -521,7 +524,6 @@ bool SwGrfNode::SwapIn( bool bWaitForData )
     bool bRet = false;
     bInSwapIn = true;
     SwBaseLink* pLink = static_cast<SwBaseLink*>((::sfx2::SvBaseLink*) refLink);
-
     if( pLink )
     {
         if( GRAPHIC_NONE == maGrfObj.GetType() ||
@@ -1089,7 +1091,6 @@ void SwGrfNode::TriggerAsyncRetrieveInputStream()
         OSL_FAIL( "<SwGrfNode::TriggerAsyncLoad()> - Method is misused. Method call is only valid for graphic nodes, which refer a linked graphic file" );
         return;
     }
-
     if ( mpThreadConsumer.get() == 0 )
     {
         mpThreadConsumer.reset( new SwAsyncRetrieveInputStreamThreadConsumer( *this ) );
@@ -1104,6 +1105,7 @@ void SwGrfNode::TriggerAsyncRetrieveInputStream()
         }
         mpThreadConsumer->CreateThread( sGrfNm, sReferer );
     }
+
 }
 
 
@@ -1137,6 +1139,7 @@ void SwGrfNode::UpdateLinkWithInputStream()
         // #i88291#
         mxInputStream.clear();
         GetLink()->clearStreamToLoadFrom();
+        mbUpdateLinkInProgress = true;
         mbLinkedInputStreamReady = false;
         mpThreadConsumer.reset();
     }