Adding upstream version 4:24.2.0.upstream/4%24.2.0

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 184 insertions, 0 deletions

diff --git a/vcl/ios/iOSTransferable.cxx b/vcl/ios/iOSTransferable.cxx
new file mode 100644
index 0000000000..bfbc8a9afa
--- /dev/null
+++ b/vcl/ios/iOSTransferable.cxx
@@ -0,0 +1,184 @@
+/* -*- 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/.
+ *
+ * This file incorporates work covered by the following license notice:
+ *
+ *   Licensed to the Apache Software Foundation (ASF) under one or more
+ *   contributor license agreements. See the NOTICE file distributed
+ *   with this work for additional information regarding copyright
+ *   ownership. The ASF licenses this file to you under the Apache
+ *   License, Version 2.0 (the "License"); you may not use this file
+ *   except in compliance with the License. You may obtain a copy of
+ *   the License at http://www.apache.org/licenses/LICENSE-2.0 .
+ */
+
+#include <sal/config.h>
+
+#include <com/sun/star/datatransfer/UnsupportedFlavorException.hpp>
+#include <com/sun/star/lang/IllegalArgumentException.hpp>
+#include <sal/log.hxx>
+#include <sal/types.h>
+#include <osl/diagnose.h>
+
+#include <quartz/utils.h>
+
+#include "iOSTransferable.hxx"
+
+#include "DataFlavorMapping.hxx"
+
+using namespace osl;
+using namespace cppu;
+using namespace com::sun::star::uno;
+using namespace com::sun::star::datatransfer;
+using namespace com::sun::star::lang;
+
+namespace
+{
+bool isValidFlavor(const DataFlavor& aFlavor)
+{
+    size_t len = aFlavor.MimeType.getLength();
+    Type dtype = aFlavor.DataType;
+    return ((len > 0)
+            && ((dtype == cppu::UnoType<Sequence<sal_Int8>>::get())
+                || (dtype == cppu::UnoType<OUString>::get())));
+}
+
+bool cmpAllContentTypeParameter(const Reference<XMimeContentType>& xLhs,
+                                const Reference<XMimeContentType>& xRhs)
+{
+    Sequence<OUString> xLhsFlavors = xLhs->getParameters();
+    Sequence<OUString> xRhsFlavors = xRhs->getParameters();
+
+    // Stop here if the number of parameters is different already
+    if (xLhsFlavors.getLength() != xRhsFlavors.getLength())
+        return false;
+
+    try
+    {
+        OUString pLhs;
+        OUString pRhs;
+
+        for (sal_Int32 i = 0; i < xLhsFlavors.getLength(); i++)
+        {
+            pLhs = xLhs->getParameterValue(xLhsFlavors[i]);
+            pRhs = xRhs->getParameterValue(xLhsFlavors[i]);
+
+            if (!pLhs.equalsIgnoreAsciiCase(pRhs))
+            {
+                return false;
+            }
+        }
+    }
+    catch (IllegalArgumentException&)
+    {
+        return false;
+    }
+
+    return true;
+}
+
+} // unnamed namespace
+
+iOSTransferable::iOSTransferable(const Reference<XMimeContentTypeFactory>& rXMimeCntFactory,
+                                 std::shared_ptr<DataFlavorMapper> pDataFlavorMapper)
+    : mrXMimeCntFactory(rXMimeCntFactory)
+    , mDataFlavorMapper(pDataFlavorMapper)
+{
+    initClipboardItemList();
+}
+
+iOSTransferable::~iOSTransferable() {}
+
+Any SAL_CALL iOSTransferable::getTransferData(const DataFlavor& aFlavor)
+{
+    if (!isValidFlavor(aFlavor) || !isDataFlavorSupported(aFlavor))
+    {
+        throw UnsupportedFlavorException("Unsupported data flavor",
+                                         static_cast<XTransferable*>(this));
+    }
+
+    bool bInternal(false);
+    NSString* sysFormat = (aFlavor.MimeType.startsWith("image/png"))
+                              ? DataFlavorMapper::openOfficeImageToSystemFlavor()
+                              : mDataFlavorMapper->openOfficeToSystemFlavor(aFlavor, bInternal);
+    DataProviderPtr_t dp;
+
+    NSData* sysData = [[UIPasteboard generalPasteboard] dataForPasteboardType:sysFormat];
+    if (!sysData)
+    {
+        // Related: gh#5908 throw an exception if the data flavor is nil
+        // If nil is returned, it can mean that the user has selected the
+        // "disallow" option and so we can't access the current clipboard
+        // contents. Also, by throwing an exception, the "allow or disallow"
+        // dialog will display again the next time the user tries to paste.
+        throw UnsupportedFlavorException("Data flavor is nil", static_cast<XTransferable*>(this));
+    }
+
+    dp = DataFlavorMapper::getDataProvider(sysFormat, sysData);
+
+    if (dp.get() == nullptr)
+    {
+        throw UnsupportedFlavorException("Unsupported data flavor",
+                                         static_cast<XTransferable*>(this));
+    }
+
+    return dp->getOOoData();
+}
+
+Sequence<DataFlavor> SAL_CALL iOSTransferable::getTransferDataFlavors() { return mFlavorList; }
+
+sal_Bool SAL_CALL iOSTransferable::isDataFlavorSupported(const DataFlavor& aFlavor)
+{
+    for (sal_Int32 i = 0; i < mFlavorList.getLength(); i++)
+        if (compareDataFlavors(aFlavor, mFlavorList[i]))
+            return true;
+
+    return false;
+}
+
+void iOSTransferable::initClipboardItemList()
+{
+    NSArray* pboardFormats = [[UIPasteboard generalPasteboard] pasteboardTypes];
+
+    if (pboardFormats == nullptr)
+    {
+        throw RuntimeException("Cannot get clipboard data", static_cast<XTransferable*>(this));
+    }
+
+    SAL_INFO("vcl.ios.clipboard", "Types on clipboard: " << NSStringArrayToOUString(pboardFormats));
+
+    mFlavorList = mDataFlavorMapper->typesArrayToFlavorSequence(pboardFormats);
+}
+
+/* Compares two DataFlavors. Returns true if both DataFlavor have the same media type
+   and the number of parameter and all parameter values do match otherwise false
+   is returned.
+ */
+bool iOSTransferable::compareDataFlavors(const DataFlavor& lhs, const DataFlavor& rhs)
+{
+    try
+    {
+        Reference<XMimeContentType> xLhs(mrXMimeCntFactory->createMimeContentType(lhs.MimeType));
+        Reference<XMimeContentType> xRhs(mrXMimeCntFactory->createMimeContentType(rhs.MimeType));
+
+        if (!xLhs->getFullMediaType().equalsIgnoreAsciiCase(xRhs->getFullMediaType())
+            || !cmpAllContentTypeParameter(xLhs, xRhs))
+        {
+            return false;
+        }
+    }
+    catch (IllegalArgumentException&)
+    {
+        OSL_FAIL("Invalid content type detected");
+        return false;
+    }
+
+    return true;
+}
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */