tdf#133142 UnoControlTabPageContainer: Handle tab property changes

In the model, changing a tab page's title or enabled/disabled
status is done via methods 'XTabPageModel.setTitle' and
'XTabPageModel.setEnabled'.

Changes to the title and enabled/disabled status are
propagated to the tab page container containing the
tab page (s.a. 25c692c2a94ab83c2c859ac5ab334b62ac8b825e
("ControlModelContainerBase: Use property for enabled status",
2020-05-15)).

Make 'VCLXTabPageContainer' derive from 'XPropertiesChangeListener'
and implement the 'propertiesChange' method defined in that
interface to handle property changes for the tab pages and have
'UnoControlTabPageContainer' forward 'PropertyChangeEvent's
to its peer so they can be handled there.

This way, changes for those tab page properties via UNO
are now properly updated in the UI as well.

Change-Id: I6fa1fadf781575c4ad1d066aed9c3a651b10869d
Reviewed-on: https://gerrit.libreoffice.org/c/core/+/94402
Tested-by: Jenkins
Reviewed-by: Michael Weghorn <m.weghorn@posteo.de>

2 files changed, 32 insertions, 0 deletions

diff --git a/toolkit/source/awt/vclxtabpagecontainer.cxx b/toolkit/source/awt/vclxtabpagecontainer.cxx
index 0bfacc695136..bc5d19964d2e 100644
--- a/toolkit/source/awt/vclxtabpagecontainer.cxx
+++ b/toolkit/source/awt/vclxtabpagecontainer.cxx
@@ -21,6 +21,7 @@
 #include <com/sun/star/awt/tab/XTabPageModel.hpp>
 #include <com/sun/star/awt/XControl.hpp>
 #include <sal/log.hxx>
+#include <toolkit/helper/property.hxx>
 #include <vcl/image.hxx>
 #include <vcl/tabpage.hxx>
 #include <vcl/tabctrl.hxx>
@@ -208,4 +209,26 @@ void SAL_CALL VCLXTabPageContainer::elementReplaced( const css::container::Conta
 {
 }
 
+void VCLXTabPageContainer::propertiesChange(const::css::uno::Sequence<PropertyChangeEvent>& rEvents)
+{
+    SolarMutexGuard aGuard;
+    VclPtr<TabControl> pTabCtrl = GetAs<TabControl>();
+    if (!pTabCtrl)
+        return;
+
+    for (const beans::PropertyChangeEvent& rEvent : rEvents) {
+        // handle property changes for tab pages
+        Reference< css::awt::tab::XTabPageModel > xTabPageModel(rEvent.Source, uno::UNO_QUERY);
+        if (!xTabPageModel.is())
+            continue;
+
+        const sal_Int16 nId = xTabPageModel->getTabPageID();
+        if (rEvent.PropertyName == GetPropertyName(BASEPROPERTY_ENABLED)) {
+            pTabCtrl->SetPageEnabled(nId, xTabPageModel->getEnabled());
+        } else if (rEvent.PropertyName == GetPropertyName(BASEPROPERTY_TITLE)) {
+            pTabCtrl->SetPageText(nId, xTabPageModel->getTitle());
+        }
+    }
+}
+
 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */
diff --git a/toolkit/source/controls/tabpagecontainer.cxx b/toolkit/source/controls/tabpagecontainer.cxx
index 25c50c387abe..979718e73865 100644
--- a/toolkit/source/controls/tabpagecontainer.cxx
+++ b/toolkit/source/controls/tabpagecontainer.cxx
@@ -294,6 +294,15 @@ void SAL_CALL UnoControlTabPageContainer::removeTabPageContainerListener( const
     m_aTabPageListeners.removeInterface( listener );
 }
 
+void UnoControlTabPageContainer::propertiesChange(const::css::uno::Sequence<PropertyChangeEvent> &aEvent)
+{
+    UnoControlTabPageContainer_Base::propertiesChange(aEvent);
+
+    SolarMutexGuard aSolarGuard;
+    Reference< XPropertiesChangeListener >  xPropertiesChangeListener( getPeer(), UNO_QUERY_THROW );
+    return xPropertiesChangeListener->propertiesChange(aEvent);
+}
+
 void UnoControlTabPageContainer::updateFromModel()
 {
     UnoControlTabPageContainer_Base::updateFromModel();