lokdialog: Support for rendering floating window dialog widgets

Now gtktiledviewer can show floating window dialog widgets when user
clicks any of such widget in the dialog.

Change-Id: I13d756f236379bc8b2041ed41cb7b502f7fd9b24

2 files changed, 55 insertions, 6 deletions

diff --git a/vcl/source/window/dialog.cxx b/vcl/source/window/dialog.cxx
index e5d784e4f667..29400ca55982 100644
--- a/vcl/source/window/dialog.cxx
+++ b/vcl/source/window/dialog.cxx
@@ -883,10 +883,49 @@ void Dialog::paintDialog(VirtualDevice& rDevice)
     PaintToDevice(&rDevice, Point(0, 0), Size());
 }
 
-void Dialog::LogicInvalidate(const tools::Rectangle* /*pRectangle*/)
+Size Dialog::PaintActiveFloatingWindow(VirtualDevice& rDevice)
+{
+    Size aRet;
+    ImplSVData* pSVData = ImplGetSVData();
+    FloatingWindow* pFirstFloat = pSVData->maWinData.mpFirstFloat;
+    if (pFirstFloat)
+    {
+        // TODO:: run a while loop here and check all the active floating
+        // windows ( chained together, cf. pFirstFloat->mpNextFloat )
+        // For now just assume that the active floating window is the one we
+        // want to render
+        if (pFirstFloat->GetParentDialog() == this)
+        {
+            pFirstFloat->PaintToDevice(&rDevice, Point(0, 0), Size());
+            aRet = ::isLayoutEnabled(pFirstFloat) ? pFirstFloat->get_preferred_size() : pFirstFloat->GetSizePixel();
+        }
+
+        pFirstFloat = nullptr;
+    }
+
+    return aRet;
+}
+
+void Dialog::InvalidateFloatingWindow(const Point& rPos)
 {
     if (comphelper::LibreOfficeKit::isActive() && mpDialogRenderable && !maID.isEmpty())
     {
+        mpDialogRenderable->notifyDialogChild(maID, "invalidate", rPos);
+    }
+}
+
+void Dialog::CloseFloatingWindow()
+{
+    if (comphelper::LibreOfficeKit::isActive() && mpDialogRenderable && !maID.isEmpty())
+    {
+        mpDialogRenderable->notifyDialogChild(maID, "close", Point(0, 0));
+    }
+}
+
+void Dialog::LogicInvalidate(const tools::Rectangle* /*pRectangle*/)
+{
+    if (!comphelper::LibreOfficeKit::isDialogPainting() && mpDialogRenderable && !maID.isEmpty())
+    {
         mpDialogRenderable->notifyDialogInvalidation(maID);
     }
 }
diff --git a/vcl/source/window/floatwin.cxx b/vcl/source/window/floatwin.cxx
index 23e56ce6e669..16bcb721a612 100644
--- a/vcl/source/window/floatwin.cxx
+++ b/vcl/source/window/floatwin.cxx
@@ -38,6 +38,7 @@ public:
 
     VclPtr<ToolBox> mpBox;
     tools::Rectangle       maItemEdgeClipRect; // used to clip the common edge between a toolbar item and the border of this window
+    Point maPos; // position of the floating window wrt. parent
 };
 
 FloatingWindow::ImplData::ImplData()
@@ -592,6 +593,15 @@ void FloatingWindow::StateChanged( StateChangedType nType )
     }
 
     SystemWindow::StateChanged( nType );
+    Dialog* pParentDlg = GetParentDialog();
+    if (pParentDlg && nType == StateChangedType::InitShow && IsVisible())
+    {
+        pParentDlg->InvalidateFloatingWindow(mpImplData->maPos);
+    }
+    else if (pParentDlg && !IsVisible())
+    {
+        pParentDlg->CloseFloatingWindow();
+    }
 
     if ( nType == StateChangedType::ControlBackground )
     {
@@ -667,8 +677,8 @@ void FloatingWindow::StartPopupMode( const tools::Rectangle& rRect, FloatWinPopu
 
     // compute window position according to flags and arrangement
     sal_uInt16 nArrangeIndex;
-    Point aPos = ImplCalcPos( this, rRect, nFlags, nArrangeIndex );
-    SetPosPixel( aPos );
+    mpImplData->maPos = ImplCalcPos( this, rRect, nFlags, nArrangeIndex );
+    SetPosPixel( mpImplData->maPos );
 
     // set data and display window
     // convert maFloatRect to absolute device coordinates
@@ -714,10 +724,10 @@ void FloatingWindow::StartPopupMode( ToolBox* pBox, FloatWinPopupFlags nFlags )
 
     // retrieve some data from the ToolBox
     tools::Rectangle aRect = nItemId ? pBox->GetItemRect( nItemId ) : pBox->GetOverflowRect();
-    Point aPos;
+
     // convert to parent's screen coordinates
-    aPos = GetParent()->OutputToScreenPixel( GetParent()->AbsoluteScreenToOutputPixel( pBox->OutputToAbsoluteScreenPixel( aRect.TopLeft() ) ) );
-    aRect.SetPos( aPos );
+    mpImplData->maPos = GetParent()->OutputToScreenPixel( GetParent()->AbsoluteScreenToOutputPixel( pBox->OutputToAbsoluteScreenPixel( aRect.TopLeft() ) ) );
+    aRect.SetPos( mpImplData->maPos );
 
     nFlags |=
         FloatWinPopupFlags::AllMouseButtonClose |