1 files changed, 353 insertions, 0 deletions
diff --git a/vcl/osx/clipboard.cxx b/vcl/osx/clipboard.cxx
new file mode 100644
index 0000000000..f5be6f86c3
--- /dev/null
+++ b/vcl/osx/clipboard.cxx
@@ -0,0 +1,353 @@
+/* -*- 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/.
+ *
+ * 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 "clipboard.hxx"
+
+#include "DataFlavorMapping.hxx"
+#include "OSXTransferable.hxx"
+#include <com/sun/star/datatransfer/MimeContentTypeFactory.hpp>
+#include <com/sun/star/lang/IllegalArgumentException.hpp>
+#include <comphelper/processfactory.hxx>
+#include <cppuhelper/supportsservice.hxx>
+
+using namespace css;
+
+@implementation EventListener;
+
+-(EventListener*)initWithAquaClipboard: (AquaClipboard*) pcb
+{
+    self = [super init];
+
+    if (self)
+        pAquaClipboard = pcb;
+
+    return self;
+}
+
+-(void)pasteboard:(NSPasteboard*)sender provideDataForType:(const NSString*)type
+{
+    if( pAquaClipboard )
+        pAquaClipboard->provideDataForType(sender, type);
+}
+
+-(void)applicationDidBecomeActive:(NSNotification*)aNotification
+{
+    if( pAquaClipboard )
+        pAquaClipboard->applicationDidBecomeActive(aNotification);
+}
+
+-(void)disposing
+{
+    pAquaClipboard = nullptr;
+}
+
+@end
+
+static OUString clipboard_getImplementationName()
+{
+  return "com.sun.star.datatransfer.clipboard.AquaClipboard";
+}
+
+static uno::Sequence<OUString> clipboard_getSupportedServiceNames()
+{
+  return { OUString("com.sun.star.datatransfer.clipboard.SystemClipboard") };
+}
+
+AquaClipboard::AquaClipboard(NSPasteboard* pasteboard, bool bUseSystemPasteboard)
+    : WeakComponentImplHelper<XSystemClipboard, XFlushableClipboard, XServiceInfo>(m_aMutex)
+    , mIsSystemPasteboard(bUseSystemPasteboard)
+{
+    uno::Reference<uno::XComponentContext> xContext = comphelper::getProcessComponentContext();
+
+    mrXMimeCntFactory = datatransfer::MimeContentTypeFactory::create(xContext);
+
+    mpDataFlavorMapper = std::make_shared<DataFlavorMapper>();
+
+    if (pasteboard != nullptr)
+    {
+      mPasteboard = pasteboard;
+      mIsSystemPasteboard = false;
+    }
+    else
+    {
+      SAL_WNODEPRECATED_DECLARATIONS_PUSH //TODO: 10.13 NSDragPboard
+      mPasteboard = bUseSystemPasteboard ? [NSPasteboard generalPasteboard] :
+        [NSPasteboard pasteboardWithName: NSDragPboard];
+      SAL_WNODEPRECATED_DECLARATIONS_POP
+
+      if (mPasteboard == nil)
+      {
+            throw uno::RuntimeException("AquaClipboard: Cannot create Cocoa pasteboard",
+                static_cast<XClipboardEx*>(this));
+      }
+    }
+
+    [mPasteboard retain];
+
+    mEventListener = [[EventListener alloc] initWithAquaClipboard: this];
+
+    if (mEventListener == nil)
+    {
+        [mPasteboard release];
+
+        throw uno::RuntimeException(
+            "AquaClipboard: Cannot create pasteboard change listener",
+            static_cast<XClipboardEx*>(this));
+    }
+
+    if (mIsSystemPasteboard)
+    {
+        NSNotificationCenter* notificationCenter = [NSNotificationCenter defaultCenter];
+
+        [notificationCenter addObserver: mEventListener
+         selector: @selector(applicationDidBecomeActive:)
+         name: @"NSApplicationDidBecomeActiveNotification"
+         object: [NSApplication sharedApplication]];
+    }
+
+    mPasteboardChangeCount = [mPasteboard changeCount];
+}
+
+AquaClipboard::~AquaClipboard()
+{
+    if (mIsSystemPasteboard)
+    {
+        [[NSNotificationCenter defaultCenter] removeObserver: mEventListener];
+    }
+
+    [mEventListener disposing];
+    [mEventListener release];
+    [mPasteboard release];
+}
+
+uno::Reference<datatransfer::XTransferable> SAL_CALL AquaClipboard::getContents()
+{
+    osl::MutexGuard aGuard(m_aMutex);
+
+    // tdf#144124 Detect if ownership has been lost
+    // The shortcut assumes that lost ownership notifications from the
+    // system clipboard will happen elsewhere. They do under normal
+    // conditions, but do not when some clipboard managers are running.
+    // So, explicitly check ownership to catch such cases.
+    if (mIsSystemPasteboard)
+        applicationDidBecomeActive(nullptr);
+
+    // Shortcut: If we are clipboard owner already we don't need
+    // to drag the data through the system clipboard
+    if (mXClipboardContent.is())
+    {
+        return mXClipboardContent;
+    }
+
+    return uno::Reference<datatransfer::XTransferable>(
+                new OSXTransferable(mrXMimeCntFactory,
+                                    mpDataFlavorMapper,
+                                    mPasteboard));
+}
+
+void SAL_CALL AquaClipboard::setContents(
+    uno::Reference<datatransfer::XTransferable> const & xTransferable,
+    uno::Reference<datatransfer::clipboard::XClipboardOwner> const & xClipboardOwner)
+{
+    NSArray* types = xTransferable.is() ?
+        mpDataFlavorMapper->flavorSequenceToTypesArray(xTransferable->getTransferDataFlavors(), true) :
+        [NSArray array];
+
+    osl::ClearableMutexGuard aGuard(m_aMutex);
+
+    uno::Reference<datatransfer::clipboard::XClipboardOwner> oldOwner(mXClipboardOwner);
+    mXClipboardOwner = xClipboardOwner;
+
+    uno::Reference<datatransfer::XTransferable> oldContent(mXClipboardContent);
+    mXClipboardContent = xTransferable;
+
+    mPasteboardChangeCount = [mPasteboard declareTypes: types owner: mEventListener];
+
+    aGuard.clear();
+
+    // if we are already the owner of the clipboard
+    // then fire lost ownership event
+    if (oldOwner.is())
+    {
+        fireLostClipboardOwnershipEvent(oldOwner, oldContent);
+    }
+
+    fireClipboardChangedEvent();
+}
+
+OUString SAL_CALL AquaClipboard::getName()
+{
+    return OUString();
+}
+
+sal_Int8 SAL_CALL AquaClipboard::getRenderingCapabilities()
+{
+    return 0;
+}
+
+void SAL_CALL AquaClipboard::addClipboardListener(uno::Reference<datatransfer::clipboard::XClipboardListener> const & listener)
+{
+    osl::MutexGuard aGuard(m_aMutex);
+
+    if (!listener.is())
+        throw lang::IllegalArgumentException("empty reference",
+                                   static_cast<XClipboardEx*>(this), 1);
+
+    mClipboardListeners.push_back(listener);
+}
+
+void SAL_CALL AquaClipboard::removeClipboardListener(uno::Reference<datatransfer::clipboard::XClipboardListener> const & listener)
+{
+    osl::MutexGuard aGuard(m_aMutex);
+
+    if (!listener.is())
+        throw lang::IllegalArgumentException("empty reference",
+                                   static_cast<XClipboardEx*>(this), 1);
+
+    mClipboardListeners.remove(listener);
+}
+
+void AquaClipboard::applicationDidBecomeActive(NSNotification*)
+{
+    osl::ClearableMutexGuard aGuard(m_aMutex);
+
+    int currentPboardChgCount = [mPasteboard changeCount];
+
+    if (currentPboardChgCount != mPasteboardChangeCount)
+    {
+        mPasteboardChangeCount = currentPboardChgCount;
+
+        // Clear clipboard content and owner and send lostOwnership
+        // notification to the old clipboard owner as well as
+        // ClipboardChanged notification to any clipboard listener
+        uno::Reference<datatransfer::clipboard::XClipboardOwner> oldOwner(mXClipboardOwner);
+        mXClipboardOwner.clear();
+
+        uno::Reference<datatransfer::XTransferable> oldContent(mXClipboardContent);
+        mXClipboardContent.clear();
+
+        aGuard.clear();
+
+        if (oldOwner.is())
+        {
+            fireLostClipboardOwnershipEvent(oldOwner, oldContent);
+        }
+
+        fireClipboardChangedEvent();
+    }
+}
+
+void AquaClipboard::fireClipboardChangedEvent()
+{
+    osl::ClearableMutexGuard aGuard(m_aMutex);
+
+    datatransfer::clipboard::ClipboardEvent aEvent;
+
+    if (!mClipboardListeners.empty())
+    {
+        aEvent = datatransfer::clipboard::ClipboardEvent(getXWeak(), getContents());
+    }
+
+    aGuard.clear();
+
+    for (auto const& rListener : mClipboardListeners)
+    {
+        if (rListener.is())
+        {
+            try
+            {
+                rListener->changedContents(aEvent);
+            }
+            catch (uno::RuntimeException& )
+            {}
+        }
+    }
+}
+
+void AquaClipboard::fireLostClipboardOwnershipEvent(
+    uno::Reference<datatransfer::clipboard::XClipboardOwner> const & rOldOwner,
+    uno::Reference<datatransfer::XTransferable> const & rOldContent)
+{
+    assert(rOldOwner.is());
+
+    try
+    {
+        rOldOwner->lostOwnership(static_cast<XClipboardEx*>(this), rOldContent);
+    }
+    catch(uno::RuntimeException&)
+    {}
+}
+
+void AquaClipboard::provideDataForType(NSPasteboard* sender, const NSString* type)
+{
+    if( mXClipboardContent.is() )
+    {
+        DataProviderPtr_t dp = mpDataFlavorMapper->getDataProvider(type, mXClipboardContent);
+        NSData* pBoardData = nullptr;
+
+        if (dp)
+        {
+            pBoardData = dp->getSystemData();
+            [sender setData: pBoardData forType:const_cast<NSString*>(type)];
+        }
+    }
+}
+
+void SAL_CALL AquaClipboard::flushClipboard()
+{
+    if (mXClipboardContent.is())
+    {
+        uno::Sequence<datatransfer::DataFlavor> flavorList = mXClipboardContent->getTransferDataFlavors();
+        sal_uInt32 nFlavors = flavorList.getLength();
+        bool bInternal(false);
+
+        for (sal_uInt32 i = 0; i < nFlavors; i++)
+        {
+            const NSString* sysType = mpDataFlavorMapper->openOfficeToSystemFlavor(flavorList[i], bInternal);
+
+            if (sysType != nullptr)
+            {
+                provideDataForType(mPasteboard, sysType);
+            }
+        }
+        mXClipboardContent.clear();
+    }
+}
+
+NSPasteboard* AquaClipboard::getPasteboard() const
+{
+    return mPasteboard;
+}
+
+OUString SAL_CALL AquaClipboard::getImplementationName()
+{
+    return clipboard_getImplementationName();
+}
+
+sal_Bool SAL_CALL AquaClipboard::supportsService(OUString const & rServiceName)
+{
+    return cppu::supportsService(this, rServiceName);
+}
+
+uno::Sequence<OUString> SAL_CALL AquaClipboard::getSupportedServiceNames()
+{
+    return clipboard_getSupportedServiceNames();
+}
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */