eliminate some code duplicity

Change-Id: I7792ddd691f81744971d45e1155e3192b24155dc

writerperfect/inc/DirectoryStream.hxx

@@ -41,6 +41,9 @@ public:
     virtual ~DirectoryStream() override;
 
     static bool isDirectory(const css::uno::Reference<css::ucb::XContent> &xContent);
+    static std::unique_ptr<DirectoryStream> createForParent(const css::uno::Reference<css::ucb::XContent> &xContent);
+
+    const css::uno::Reference<css::ucb::XContent> getContent() const;
 
     virtual bool isStructured() override;
     virtual unsigned subStreamCount() override;

writerperfect/qa/unit/DirectoryStreamTest.cxx

@@ -20,7 +20,6 @@
 #include <test/bootstrapfixture.hxx>
 
 #include <DirectoryStream.hxx>
-#include <com/sun/star/container/XChild.hpp>
 #include <com/sun/star/ucb/XContent.hpp>
 
 namespace ucb = com::sun::star::ucb;
@@ -64,35 +63,6 @@ static const char g_aDirPath[] = "/writerperfect/qa/unit/data/stream/test.dir";
 static const char g_aNondirPath[] = "/writerperfect/qa/unit/data/stream/test.dir/mimetype";
 static const char g_aNonexistentPath[] = "/writerperfect/qa/unit/data/stream/foo/bar";
 
-std::unique_ptr<DirectoryStream> createForParent(const css::uno::Reference<css::ucb::XContent> &xContent)
-{
-    try
-    {
-        if (!xContent.is())
-            return nullptr;
-
-        unique_ptr<DirectoryStream> pDir;
-
-        const uno::Reference<css::container::XChild> xChild(xContent, uno::UNO_QUERY);
-        if (xChild.is())
-        {
-            const uno::Reference<ucb::XContent> xDirContent(xChild->getParent(), uno::UNO_QUERY);
-            if (xDirContent.is())
-            {
-                pDir = o3tl::make_unique<DirectoryStream>(xDirContent);
-                if (!pDir->isStructured())
-                    pDir.reset();
-            }
-        }
-
-        return pDir;
-    }
-    catch (...)
-    {
-        return nullptr;
-    }
-}
-
 DirectoryStreamTest::DirectoryStreamTest()
 {
     const uno::Reference<ucb::XCommandEnvironment> xCmdEnv;
@@ -107,17 +77,17 @@ DirectoryStreamTest::DirectoryStreamTest()
 
 void DirectoryStreamTest::testConstruction()
 {
-    const unique_ptr<DirectoryStream> pDir(createForParent(m_xFile));
+    const unique_ptr<DirectoryStream> pDir(DirectoryStream::createForParent(m_xFile));
     CPPUNIT_ASSERT(bool(pDir));
     CPPUNIT_ASSERT(pDir->isStructured());
 
     // this should work for dirs too
-    const unique_ptr<DirectoryStream> pDir2(createForParent(m_xDir));
+    const unique_ptr<DirectoryStream> pDir2(DirectoryStream::createForParent(m_xDir));
     CPPUNIT_ASSERT(bool(pDir2));
     CPPUNIT_ASSERT(pDir2->isStructured());
 
     // for nonexistent dirs nothing is created
-    const unique_ptr<DirectoryStream> pNondir(createForParent(m_xNonexistent));
+    const unique_ptr<DirectoryStream> pNondir(DirectoryStream::createForParent(m_xNonexistent));
     CPPUNIT_ASSERT(!pNondir);
 
     // even if we try harder, just an empty shell is created
@@ -169,7 +139,7 @@ void DirectoryStreamTest::testStructuredOperations()
     DirectoryStream aDir(m_xDir);
     lcl_testStructuredOperations(aDir);
 
-    unique_ptr<DirectoryStream> pDir(createForParent(m_xFile));
+    unique_ptr<DirectoryStream> pDir(DirectoryStream::createForParent(m_xFile));
     CPPUNIT_ASSERT(bool(pDir));
     lcl_testStructuredOperations(*pDir.get());
 }

writerperfect/source/common/DirectoryStream.cxx

@@ -32,6 +32,8 @@
 
 #include <comphelper/processfactory.hxx>
 
+#include <o3tl/make_unique.hxx>
+
 #include <rtl/ustring.hxx>
 
 #include <ucbhelper/content.hxx>
@@ -128,6 +130,42 @@ bool DirectoryStream::isDirectory(const css::uno::Reference<css::ucb::XContent>
     }
 }
 
+std::unique_ptr<DirectoryStream> DirectoryStream::createForParent(const css::uno::Reference<css::ucb::XContent> &xContent)
+{
+    try
+    {
+        if (!xContent.is())
+            return nullptr;
+
+        std::unique_ptr<DirectoryStream> pDir;
+
+        const uno::Reference<css::container::XChild> xChild(xContent, uno::UNO_QUERY);
+        if (xChild.is())
+        {
+            const uno::Reference<ucb::XContent> xDirContent(xChild->getParent(), uno::UNO_QUERY);
+            if (xDirContent.is())
+            {
+                pDir = o3tl::make_unique<DirectoryStream>(xDirContent);
+                if (!pDir->isStructured())
+                    pDir.reset();
+            }
+        }
+
+        return pDir;
+    }
+    catch (...)
+    {
+        return nullptr;
+    }
+}
+
+const css::uno::Reference<css::ucb::XContent> DirectoryStream::getContent() const
+{
+    if (!m_pImpl)
+        return css::uno::Reference<css::ucb::XContent>();
+    return m_pImpl->xContent;
+}
+
 bool DirectoryStream::isStructured()
 {
     if (!m_pImpl)

writerperfect/source/impress/KeynoteImportFilter.cxx

@@ -10,7 +10,6 @@
 #include <memory>
 #include <com/sun/star/beans/NamedValue.hpp>
 #include <com/sun/star/beans/PropertyValue.hpp>
-#include <com/sun/star/container/XChild.hpp>
 #include <com/sun/star/io/XInputStream.hpp>
 #include <com/sun/star/uno/Reference.h>
 #include <com/sun/star/ucb/XContent.hpp>
@@ -48,7 +47,6 @@ using writerperfect::DocumentHandler;
 using writerperfect::WPXSvInputStream;
 
 namespace beans = com::sun::star::beans;
-namespace container = com::sun::star::container;
 namespace ucb = com::sun::star::ucb;
 
 bool KeynoteImportFilter::doImportDocument(librevenge::RVNGInputStream &rInput, OdpGenerator &rGenerator, utl::MediaDescriptor &)
@@ -159,25 +157,21 @@ OUString SAL_CALL KeynoteImportFilter::detect(css::uno::Sequence< css::beans::Pr
         if (bIsPackage)   // we passed a directory stream, but the filter claims it's APXL file?
             return OUString();
 
-        const Reference < container::XChild > xChild(xContent, UNO_QUERY);
-        if (xChild.is())
+        const std::shared_ptr<writerperfect::DirectoryStream> pDir = writerperfect::DirectoryStream::createForParent(xContent);
+        input = pDir;
+        if (bool(input))
         {
-            const Reference < ucb::XContent > xPackageContent(xChild->getParent(), UNO_QUERY);
-            if (xPackageContent.is())
+            if (libetonyek::EtonyekDocument::CONFIDENCE_EXCELLENT == libetonyek::EtonyekDocument::isSupported(input.get()))
             {
-                input.reset(new writerperfect::DirectoryStream(xPackageContent));
-                if (libetonyek::EtonyekDocument::CONFIDENCE_EXCELLENT == libetonyek::EtonyekDocument::isSupported(input.get()))
-                {
-                    xContent = xPackageContent;
-                    bUCBContentChanged = true;
-                    bIsPackage = true;
-                }
-                else
-                {
-                    // The passed stream has been detected as APXL file, but its parent dir is not a valid Keynote
-                    // package? Something is wrong here...
-                    return OUString();
-                }
+                xContent = pDir->getContent();
+                bUCBContentChanged = true;
+                bIsPackage = true;
+            }
+            else
+            {
+                // The passed stream has been detected as APXL file, but its parent dir is not a valid Keynote
+                // package? Something is wrong here...
+                return OUString();
             }
         }
     }