tdf#105566: Add/remove infobar when the signature status changes

this time without stack overflow. Updating existing infobar needs
some work still

This patch is partially based on work of samuel_m

Change-Id: I2c44c14e27cf85a1014b01e5588b7b53990033b9
Reviewed-on: https://gerrit.libreoffice.org/38148
Tested-by: Jenkins <ci@libreoffice.org>
Reviewed-by: Thorsten Behrens <Thorsten.Behrens@CIB.de>
(cherry picked from commit e744e9f4492d3013742fcdb6254cd76528870e9d)
Reviewed-on: https://gerrit.libreoffice.org/38255

3 files changed, 79 insertions, 36 deletions

diff --git a/sfx2/source/dialog/infobar.cxx b/sfx2/source/dialog/infobar.cxx
index 69b4df48df69..b093718f4e86 100644
--- a/sfx2/source/dialog/infobar.cxx
+++ b/sfx2/source/dialog/infobar.cxx
@@ -359,6 +359,11 @@ VclPtr<SfxInfoBarWindow> SfxInfoBarContainerWindow::getInfoBar(const OUString& s
     return nullptr;
 }
 
+bool SfxInfoBarContainerWindow::hasInfoBarWithID( const OUString &sId )
+{
+    return ( getInfoBar( sId ) != nullptr );
+}
+
 void SfxInfoBarContainerWindow::removeInfoBar(VclPtr<SfxInfoBarWindow> const & pInfoBar)
 {
     // Remove
diff --git a/sfx2/source/doc/objserv.cxx b/sfx2/source/doc/objserv.cxx
index 6e1f008627df..edebf6a3cae5 100644
--- a/sfx2/source/doc/objserv.cxx
+++ b/sfx2/source/doc/objserv.cxx
@@ -64,6 +64,7 @@
 #include <unotools/saveopt.hxx>
 #include <svtools/asynclink.hxx>
 #include <comphelper/documentconstants.hxx>
+#include <tools/link.hxx>
 
 #include <sfx2/app.hxx>
 #include <sfx2/signaturestate.hxx>
@@ -90,6 +91,7 @@
 #include <sfx2/msgpool.hxx>
 #include <sfx2/objface.hxx>
 #include <sfx2/checkin.hxx>
+#include <sfx2/infobar.hxx>
 
 #include "app.hrc"
 #include <com/sun/star/document/XDocumentSubStorageSupplier.hpp>
@@ -1033,6 +1035,60 @@ void SfxObjectShell::GetState_Impl(SfxItemSet &rSet)
             }
             case SID_SIGNATURE:
             {
+                SfxViewFrame *pFrame = SfxViewFrame::Current();
+                if ( pFrame )
+                {
+                    SignatureState eState = GetDocumentSignatureState();
+                    InfoBarType aInfoBarType(InfoBarType::Info);
+                    OUString sMessage("");
+
+                    switch (eState)
+                    {
+                    case SignatureState::BROKEN:
+                        sMessage = SfxResId(STR_SIGNATURE_BROKEN);
+                        aInfoBarType = InfoBarType::Danger;
+                        break;
+                    case SignatureState::NOTVALIDATED:
+                        sMessage = SfxResId(STR_SIGNATURE_NOTVALIDATED);
+                        aInfoBarType = InfoBarType::Warning;
+                        break;
+                    case SignatureState::PARTIAL_OK:
+                        sMessage = SfxResId(STR_SIGNATURE_PARTIAL_OK);
+                        aInfoBarType = InfoBarType::Warning;
+                        break;
+                    case SignatureState::OK:
+                        sMessage = SfxResId(STR_SIGNATURE_OK);
+                        aInfoBarType = InfoBarType::Info;
+                        break;
+                    default:
+                        break;
+                    }
+
+                    // new info bar
+                    if ( !pFrame->HasInfoBarWithID("signature") )
+                    {
+
+                        if (!sMessage.isEmpty())
+                        {
+                            auto pInfoBar = pFrame->AppendInfoBar("signature", sMessage, aInfoBarType);
+                            if (pInfoBar == nullptr)
+                                return;
+                            VclPtrInstance<PushButton> xBtn(&(pFrame->GetWindow()));
+                            xBtn->SetText(SfxResId(STR_SIGNATURE_SHOW));
+                            xBtn->SetSizePixel(xBtn->GetOptimalSize());
+                            xBtn->SetClickHdl(LINK(this, SfxObjectShell, SignDocumentHandler));
+                            pInfoBar->addButton(xBtn);
+                        }
+                    }
+                    else // signature info bar exists already
+                    {
+                        if (eState == SignatureState::NOSIGNATURES )
+                             pFrame->RemoveInfoBar("signature");
+                        //FIXME: Update existing info bar
+                    }
+
+                }
+
                 rSet.Put( SfxUInt16Item( SID_SIGNATURE, static_cast<sal_uInt16>(GetDocumentSignatureState()) ) );
                 break;
             }
@@ -1049,6 +1105,10 @@ void SfxObjectShell::GetState_Impl(SfxItemSet &rSet)
     }
 }
 
+IMPL_LINK_NOARG(SfxObjectShell, SignDocumentHandler, Button*, void)
+{
+    GetDispatcher()->Execute(SID_SIGNATURE);
+}
 
 void SfxObjectShell::ExecProps_Impl(SfxRequest &rReq)
 {
diff --git a/sfx2/source/view/viewfrm.cxx b/sfx2/source/view/viewfrm.cxx
index 6b7f5ea63076..aafff1ff21b6 100644
--- a/sfx2/source/view/viewfrm.cxx
+++ b/sfx2/source/view/viewfrm.cxx
@@ -1138,42 +1138,6 @@ void SfxViewFrame::Notify( SfxBroadcaster& /*rBC*/, const SfxHint& rHint )
                 rBind.Invalidate( SID_RELOAD );
                 rBind.Invalidate( SID_EDITDOC );
 
-                SignatureState nSignatureState = GetObjectShell()->GetDocumentSignatureState();
-                InfoBarType aInfoBarType(InfoBarType::Info);
-                OUString sMessage;
-
-                switch (nSignatureState)
-                {
-                case SignatureState::BROKEN:
-                    sMessage = SfxResId(STR_SIGNATURE_BROKEN);
-                    aInfoBarType = InfoBarType::Danger;
-                    break;
-                case SignatureState::NOTVALIDATED:
-                    sMessage = SfxResId(STR_SIGNATURE_NOTVALIDATED);
-                    aInfoBarType = InfoBarType::Warning;
-                    break;
-                case SignatureState::PARTIAL_OK:
-                    sMessage = SfxResId(STR_SIGNATURE_PARTIAL_OK);
-                    aInfoBarType = InfoBarType::Warning;
-                    break;
-                case SignatureState::OK:
-                    sMessage = SfxResId(STR_SIGNATURE_OK);
-                    aInfoBarType = InfoBarType::Info;
-                    break;
-                default:
-                    break;
-                }
-
-                if (!sMessage.isEmpty())
-                {
-                    auto pInfoBar = AppendInfoBar("signature", sMessage, aInfoBarType);
-                    VclPtrInstance<PushButton> xBtn(&GetWindow());
-                    xBtn->SetText(SfxResId(STR_SIGNATURE_SHOW));
-                    xBtn->SetSizePixel(xBtn->GetOptimalSize());
-                    xBtn->SetClickHdl(LINK(this, SfxViewFrame, SignDocumentHandler));
-                    pInfoBar->addButton(xBtn);
-                }
-
                 const SfxViewShell *pVSh;
                 const SfxShell *pFSh;
                 if ( m_xObjSh->IsOriginallyReadOnlyMedium() &&
@@ -3054,4 +3018,18 @@ void SfxViewFrame::RemoveInfoBar( const OUString& sId )
     }
 }
 
+bool SfxViewFrame::HasInfoBarWithID( const OUString& sId )
+{
+    const sal_uInt16 nId = SfxInfoBarContainerChild::GetChildWindowId();
+
+    SfxChildWindow* pChild = GetChildWindow(nId);
+    if (pChild)
+    {
+        SfxInfoBarContainerWindow* pInfoBarContainer = static_cast<SfxInfoBarContainerWindow*>(pChild->GetWindow());
+        return pInfoBarContainer->hasInfoBarWithID(sId);
+    }
+
+    return false;
+}
+
 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */