tdf#129205 DOCX import: handle the <w:shd w:val="nil" ...> paragraph property

Reading the spec, "nil" is the opposite of "clear": i.e. if the
(background) color is red and the fill (color) is green, then "clear"
means green. And you would expect "nil" means red, but it's just nothing
in Word.

Fix the problem by doing the same: don't set any paragraph property for
the "nil" case and keep doing it for the common "clear" case.

Change-Id: I30af8a7fb55fb9bab2d12e120069a479fc7ab0a9
Reviewed-on: https://gerrit.libreoffice.org/c/core/+/86096
Reviewed-by: Miklos Vajna <vmiklos@collabora.com>
Tested-by: Jenkins

2 files changed, 75 insertions, 0 deletions

diff --git a/writerfilter/qa/cppunittests/dmapper/CellColorHandler.cxx b/writerfilter/qa/cppunittests/dmapper/CellColorHandler.cxx
new file mode 100644
index 000000000000..ab3dc7cec6c3
--- /dev/null
+++ b/writerfilter/qa/cppunittests/dmapper/CellColorHandler.cxx
@@ -0,0 +1,75 @@
+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
+/*
+ * 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 <test/bootstrapfixture.hxx>
+#include <unotest/macros_test.hxx>
+
+#include <com/sun/star/drawing/XDrawPagesSupplier.hpp>
+#include <com/sun/star/frame/Desktop.hpp>
+#include <com/sun/star/text/XTextDocument.hpp>
+#include <com/sun/star/beans/XPropertySet.hpp>
+#include <com/sun/star/drawing/FillStyle.hpp>
+
+#include <comphelper/processfactory.hxx>
+
+using namespace ::com::sun::star;
+
+namespace
+{
+/// Tests for writerfilter/source/dmapper/CellColorHandler.cxx.
+class Test : public test::BootstrapFixture, public unotest::MacrosTest
+{
+private:
+    uno::Reference<uno::XComponentContext> mxComponentContext;
+    uno::Reference<lang::XComponent> mxComponent;
+
+public:
+    void setUp() override;
+    void tearDown() override;
+    uno::Reference<lang::XComponent>& getComponent() { return mxComponent; }
+};
+
+void Test::setUp()
+{
+    test::BootstrapFixture::setUp();
+
+    mxComponentContext.set(comphelper::getComponentContext(getMultiServiceFactory()));
+    mxDesktop.set(frame::Desktop::create(mxComponentContext));
+}
+
+void Test::tearDown()
+{
+    if (mxComponent.is())
+        mxComponent->dispose();
+
+    test::BootstrapFixture::tearDown();
+}
+
+char const DATA_DIRECTORY[] = "/writerfilter/qa/cppunittests/dmapper/data/";
+
+CPPUNIT_TEST_FIXTURE(Test, test129205)
+{
+    OUString aURL = m_directories.getURLFromSrc(DATA_DIRECTORY) + "tdf129205.docx";
+    getComponent() = loadFromDesktop(aURL);
+    uno::Reference<text::XTextDocument> xTextDocument(getComponent(), uno::UNO_QUERY);
+    uno::Reference<container::XEnumerationAccess> xParaEnumAccess(xTextDocument->getText(),
+                                                                  uno::UNO_QUERY);
+    uno::Reference<container::XEnumeration> xParaEnum = xParaEnumAccess->createEnumeration();
+    uno::Reference<beans::XPropertySet> xPara(xParaEnum->nextElement(), uno::UNO_QUERY);
+    drawing::FillStyle eFillStyle = drawing::FillStyle::FillStyle_NONE;
+    xPara->getPropertyValue("FillStyle") >>= eFillStyle;
+    // Without the accompanying fix in place, this test would have failed with:
+    // - Expected: drawing::FillStyle_NONE
+    // - Actual  : FillStyle_SOLID
+    // i.e. the paragraph had a solid fill, making the header image invisible.
+    CPPUNIT_ASSERT_EQUAL(drawing::FillStyle_NONE, eFillStyle);
+}
+}
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
diff --git a/writerfilter/qa/cppunittests/dmapper/data/tdf129205.docx b/writerfilter/qa/cppunittests/dmapper/data/tdf129205.docx
new file mode 100644
index 000000000000..4289254d0a97
--- /dev/null
+++ b/writerfilter/qa/cppunittests/dmapper/data/tdf129205.docx