Implement weld::IconView::connect_query_tooltip

Change-Id: I8a8540e240d6a7046f564404c7c3b6bff8c2f04d
Reviewed-on: https://gerrit.libreoffice.org/c/core/+/134806
Tested-by: Jenkins
Reviewed-by: Mike Kaganski <mike.kaganski@collabora.com>

1 files changed, 36 insertions, 0 deletions

diff --git a/vcl/unx/gtk3/gtkinst.cxx b/vcl/unx/gtk3/gtkinst.cxx
index c61f6d650261..1f61fc49db3d 100644
--- a/vcl/unx/gtk3/gtkinst.cxx
+++ b/vcl/unx/gtk3/gtkinst.cxx
@@ -16099,6 +16099,7 @@ private:
 #if !GTK_CHECK_VERSION(4, 0, 0)
     gulong m_nPopupMenu;
 #endif
+    gulong m_nQueryTooltipSignalId = 0;
     ImplSVEvent* m_pSelectionChangeEvent;
 
     DECL_LINK(async_signal_selection_changed, void*, void);
@@ -16145,6 +16146,32 @@ private:
         pThis->handle_item_activated();
     }
 
+    static gboolean signalQueryTooltip(GtkWidget* /*pGtkWidget*/, gint x, gint y,
+        gboolean keyboard_tip, GtkTooltip* tooltip,
+        gpointer widget)
+    {
+        GtkInstanceIconView* pThis = static_cast<GtkInstanceIconView*>(widget);
+        GtkTreeIter iter;
+        GtkIconView* pIconView = pThis->m_pIconView;
+        GtkTreeModel* pModel = gtk_icon_view_get_model(pIconView);
+        GtkTreePath* pPath = nullptr;
+#if GTK_CHECK_VERSION(4, 0, 0)
+        if (!gtk_icon_view_get_tooltip_context(pIconView, x, y, keyboard_tip, &pModel, &pPath, &iter))
+            return false;
+#else
+        if (!gtk_icon_view_get_tooltip_context(pIconView, &x, &y, keyboard_tip, &pModel, &pPath, &iter))
+            return false;
+#endif
+        OUString aTooltip = pThis->signal_query_tooltip(GtkInstanceTreeIter(iter));
+        if (!aTooltip.isEmpty())
+        {
+            gtk_tooltip_set_text(tooltip, OUStringToOString(aTooltip, RTL_TEXTENCODING_UTF8).getStr());
+            gtk_icon_view_set_tooltip_item(pIconView, tooltip, pPath);
+        }
+        gtk_tree_path_free(pPath);
+        return !aTooltip.isEmpty();
+    }
+
     void insert_item(GtkTreeIter& iter, int pos, const OUString* pId, const OUString* pText, const OUString* pIconName)
     {
         gtk_tree_store_insert_with_values(m_pTreeStore, &iter, nullptr, pos,
@@ -16251,6 +16278,12 @@ public:
         enable_notify_events();
     }
 
+    virtual void connect_query_tooltip(const Link<const weld::TreeIter&, OUString>& rLink) override
+    {
+        weld::IconView::connect_query_tooltip(rLink);
+        m_nQueryTooltipSignalId = g_signal_connect(m_pIconView, "query-tooltip", G_CALLBACK(signalQueryTooltip), this);
+    }
+
     virtual OUString get_selected_id() const override
     {
         assert(gtk_icon_view_get_model(m_pIconView) && "don't request selection when frozen");
@@ -16495,6 +16528,9 @@ public:
         if (m_pSelectionChangeEvent)
             Application::RemoveUserEvent(m_pSelectionChangeEvent);
 
+        if (m_nQueryTooltipSignalId)
+            g_signal_handler_disconnect(m_pIconView, m_nQueryTooltipSignalId);
+
         g_signal_handler_disconnect(m_pIconView, m_nItemActivatedSignalId);
         g_signal_handler_disconnect(m_pIconView, m_nSelectionChangedSignalId);
 #if !GTK_CHECK_VERSION(4, 0, 0)