tdf#130857 qt weld: Introduce QtInstancePopover

When encountering a "GtkPopover" object in a .ui
file, create a QWidget with window flags Qt::Popup
and set a layout, as weld::Popover is a weld::Container
subclass.

Add new QtInstancePopover that QtInstanceBuilder::weld_popover
creates.
For now, methods in that class simply trigger an assert;
actual logic still needs to be implemented.

Change-Id: I9a0dfefd9fb79d24fe40dd5efe13ef0c3ab9b7fb
Reviewed-on: https://gerrit.libreoffice.org/c/core/+/179098
Tested-by: Jenkins
Reviewed-by: Michael Weghorn <m.weghorn@posteo.de>

3 files changed, 39 insertions, 3 deletions

diff --git a/vcl/qt5/QtBuilder.cxx b/vcl/qt5/QtBuilder.cxx
index 9e8985d04d60..253049625844 100644
--- a/vcl/qt5/QtBuilder.cxx
+++ b/vcl/qt5/QtBuilder.cxx
@@ -298,6 +298,12 @@ QObject* QtBuilder::makeObject(QObject* pParent, std::u16string_view sName, std:
     {
         pObject = new QSplitter(pParentWidget);
     }
+    else if (sName == u"GtkPopover")
+    {
+        QWidget* pWidget = new QWidget(pParentWidget, Qt::Popup);
+        pWidget->setLayout(new QVBoxLayout);
+        pObject = pWidget;
+    }
     else if (sName == u"GtkRadioButton")
     {
         pObject = new QRadioButton(pParentWidget);
diff --git a/vcl/qt5/QtInstanceBuilder.cxx b/vcl/qt5/QtInstanceBuilder.cxx
index fffe30e94d04..3294a7ec141f 100644
--- a/vcl/qt5/QtInstanceBuilder.cxx
+++ b/vcl/qt5/QtInstanceBuilder.cxx
@@ -28,6 +28,7 @@
 #include <QtInstanceMenuButton.hxx>
 #include <QtInstanceMessageDialog.hxx>
 #include <QtInstanceNotebook.hxx>
+#include <QtInstancePopover.hxx>
 #include <QtInstanceProgressBar.hxx>
 #include <QtInstanceRadioButton.hxx>
 #include <QtInstanceScale.hxx>
@@ -395,10 +396,12 @@ std::unique_ptr<weld::Menu> QtInstanceBuilder::weld_menu(const OUString& rId)
     return xRet;
 }
 
-std::unique_ptr<weld::Popover> QtInstanceBuilder::weld_popover(const OUString&)
+std::unique_ptr<weld::Popover> QtInstanceBuilder::weld_popover(const OUString& rId)
 {
-    assert(false && "Not implemented yet");
-    return nullptr;
+    QWidget* pWidget = m_xBuilder->get<QWidget>(rId);
+    std::unique_ptr<weld::Popover> xRet(pWidget ? std::make_unique<QtInstancePopover>(pWidget)
+                                                : nullptr);
+    return xRet;
 }
 
 std::unique_ptr<weld::Toolbar> QtInstanceBuilder::weld_toolbar(const OUString&)
diff --git a/vcl/qt5/QtInstancePopover.cxx b/vcl/qt5/QtInstancePopover.cxx
new file mode 100644
index 000000000000..e35665e8289c
--- /dev/null
+++ b/vcl/qt5/QtInstancePopover.cxx
@@ -0,0 +1,27 @@
+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4; fill-column: 100 -*- */
+/*
+ * This file is part of the LibreOffice project.
+ *
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/.
+ */
+
+#include <QtInstancePopover.hxx>
+#include <QtInstancePopover.moc>
+
+QtInstancePopover::QtInstancePopover(QWidget* pWidget)
+    : QtInstanceContainer(pWidget)
+{
+}
+
+void QtInstancePopover::popup_at_rect(weld::Widget*, const tools::Rectangle&, weld::Placement)
+{
+    assert(false && "Not implemented yet");
+}
+
+void QtInstancePopover::popdown() { assert(false && "Not implemented yet"); }
+
+void QtInstancePopover::resize_to_request() { assert(false && "Not implemented yet"); }
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab cinoptions=b1,g0,N-s cinkeys+=0=break: */