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authorDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-15 05:54:39 +0000
committerDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-15 05:54:39 +0000
commit267c6f2ac71f92999e969232431ba04678e7437e (patch)
tree358c9467650e1d0a1d7227a21dac2e3d08b622b2 /vcl/osx/DragSource.cxx
parentInitial commit. (diff)
downloadlibreoffice-267c6f2ac71f92999e969232431ba04678e7437e.tar.xz
libreoffice-267c6f2ac71f92999e969232431ba04678e7437e.zip
Adding upstream version 4:24.2.0.upstream/4%24.2.0
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'vcl/osx/DragSource.cxx')
-rw-r--r--vcl/osx/DragSource.cxx338
1 files changed, 338 insertions, 0 deletions
diff --git a/vcl/osx/DragSource.cxx b/vcl/osx/DragSource.cxx
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+/* -*- 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 <com/sun/star/datatransfer/dnd/DNDConstants.hpp>
+#include <com/sun/star/datatransfer/XTransferable.hpp>
+#include <com/sun/star/awt/MouseButton.hpp>
+
+#include <rtl/ustring.hxx>
+
+#include <cppuhelper/supportsservice.hxx>
+
+#include "DragSource.hxx"
+#include "DragSourceContext.hxx"
+#include "clipboard.hxx"
+#include "DragActionConversion.hxx"
+
+#include <osx/salframe.h>
+
+#include <cassert>
+
+using namespace cppu;
+using namespace osl;
+using namespace com::sun::star;
+using namespace com::sun::star::datatransfer;
+using namespace com::sun::star::datatransfer::clipboard;
+using namespace com::sun::star::datatransfer::dnd;
+using namespace com::sun::star::datatransfer::dnd::DNDConstants;
+using namespace com::sun::star::uno;
+using namespace com::sun::star::awt::MouseButton;
+using namespace com::sun::star::awt;
+using namespace com::sun::star::lang;
+using namespace comphelper;
+
+// For LibreOffice internal D&D we provide the Transferable without NSDragPboard
+// interference as a shortcut, see tdf#100097 for how dbaccess depends on this
+uno::Reference<XTransferable> DragSource::g_XTransferable;
+NSView* DragSource::g_DragSourceView = nil;
+bool DragSource::g_DropSuccessSet = false;
+bool DragSource::g_DropSuccess = false;
+
+static OUString dragSource_getImplementationName()
+{
+ return "com.sun.star.comp.datatransfer.dnd.OleDragSource_V1";
+}
+
+static Sequence<OUString> dragSource_getSupportedServiceNames()
+{
+ return { OUString("com.sun.star.datatransfer.dnd.OleDragSource") };
+}
+
+@implementation DragSourceHelper;
+
+-(DragSourceHelper*)initWithDragSource: (DragSource*) pds
+{
+ self = [super init];
+
+ if (self)
+ {
+ mDragSource = pds;
+ }
+
+ return self;
+}
+
+-(void)mouseDown: (NSEvent*)theEvent
+{
+ mDragSource->saveMouseEvent(theEvent);
+}
+
+-(void)mouseDragged: (NSEvent*)theEvent
+{
+ mDragSource->saveMouseEvent(theEvent);
+}
+
+-(unsigned int)draggingSourceOperationMaskForLocal: (BOOL)isLocal
+{
+ return mDragSource->getSupportedDragOperations(isLocal);
+}
+
+-(void)draggedImage:(NSImage*)anImage beganAt:(NSPoint)aPoint
+{
+ (void)anImage;
+ (void)aPoint;
+ DragSourceDragEvent dsde(mDragSource->getXWeak(),
+ new DragSourceContext,
+ mDragSource,
+ DNDConstants::ACTION_COPY,
+ DNDConstants::ACTION_COPY);
+
+ mDragSource->mXDragSrcListener->dragEnter(dsde);
+}
+
+-(void)draggedImage:(NSImage *)anImage endedAt:(NSPoint)aPoint operation:(NSDragOperation)operation
+{
+ (void)anImage;
+ (void)aPoint;
+ // an internal drop can accept the drop but fail with dropComplete( false )
+ // this is different than the Cocoa API
+ bool bDropSuccess = operation != NSDragOperationNone;
+ if( DragSource::g_DropSuccessSet )
+ bDropSuccess = DragSource::g_DropSuccess;
+
+ DragSourceDropEvent dsde(mDragSource->getXWeak(),
+ new DragSourceContext,
+ static_cast< XDragSource* >(mDragSource),
+ SystemToOfficeDragActions(operation),
+ bDropSuccess );
+
+ mDragSource->mXDragSrcListener->dragDropEnd(dsde);
+ mDragSource->mXDragSrcListener.clear();
+}
+
+-(void)draggedImage:(NSImage *)draggedImage movedTo:(NSPoint)screenPoint
+{
+ (void)draggedImage;
+ (void)screenPoint;
+ DragSourceDragEvent dsde(mDragSource->getXWeak(),
+ new DragSourceContext,
+ mDragSource,
+ DNDConstants::ACTION_COPY,
+ DNDConstants::ACTION_COPY);
+
+ mDragSource->mXDragSrcListener->dragOver(dsde);
+}
+
+@end
+
+DragSource::DragSource():
+ WeakComponentImplHelper<XDragSource, XInitialization, XServiceInfo>(m_aMutex),
+ mView(nullptr),
+ mpFrame(nullptr),
+ mLastMouseEventBeforeStartDrag(nil),
+ mDragSourceHelper(nil),
+ m_MouseButton(0)
+{
+}
+
+DragSource::~DragSource()
+{
+ if( mpFrame && AquaSalFrame::isAlive( mpFrame ) )
+ [static_cast<id <MouseEventListener>>(mView) unregisterMouseEventListener: mDragSourceHelper];
+ [mDragSourceHelper release];
+}
+
+void SAL_CALL DragSource::initialize(const Sequence< Any >& aArguments)
+{
+ if (aArguments.getLength() < 2)
+ {
+ throw Exception("DragSource::initialize: Not enough parameter.",
+ getXWeak());
+ }
+
+ Any pNSView = aArguments[1];
+ sal_uInt64 tmp = 0;
+ pNSView >>= tmp;
+ mView = reinterpret_cast<NSView*>(tmp);
+
+ /* All SalFrameView the base class for all VCL system views inherits from
+ NSView in order to get mouse and other events. This is the only way to
+ get these events. In order to start a drag operation we need to provide
+ the mouse event which was the trigger. SalFrameView therefore implements
+ a hook mechanism so that we can get mouse events for our purpose.
+ */
+ if (![mView respondsToSelector: @selector(registerMouseEventListener:)] ||
+ ![mView respondsToSelector: @selector(unregisterMouseEventListener:)])
+ {
+ throw Exception("DragSource::initialize: Provided view doesn't support mouse listener",
+ getXWeak());
+ }
+ NSWindow* pWin = [mView window];
+ if( ! pWin || ![pWin respondsToSelector: @selector(getSalFrame)] )
+ {
+ throw Exception("DragSource::initialize: Provided view is not attached to a vcl frame",
+ getXWeak());
+ }
+ mpFrame = reinterpret_cast<AquaSalFrame*>([pWin performSelector: @selector(getSalFrame)]);
+
+ mDragSourceHelper = [[DragSourceHelper alloc] initWithDragSource: this];
+
+ if (mDragSourceHelper == nil)
+ {
+ throw Exception("DragSource::initialize: Cannot initialize DragSource",
+ getXWeak());
+ }
+
+ [static_cast<id <MouseEventListener>>(mView) registerMouseEventListener: mDragSourceHelper];
+}
+
+sal_Bool SAL_CALL DragSource::isDragImageSupported( )
+{
+ return true;
+}
+
+sal_Int32 SAL_CALL DragSource::getDefaultCursor( sal_Int8 /*dragAction*/ )
+{
+ return 0;
+}
+
+void SAL_CALL DragSource::startDrag(const DragGestureEvent& trigger,
+ sal_Int8 sourceActions,
+ sal_Int32 /*cursor*/,
+ sal_Int32 /*image*/,
+ const uno::Reference<XTransferable >& transferable,
+ const uno::Reference<XDragSourceListener >& listener )
+{
+ MutexGuard guard(m_aMutex);
+
+ assert(listener.is() && "DragSource::startDrag: No XDragSourceListener provided");
+ assert(transferable.is() && "DragSource::startDrag: No transferable provided");
+
+ trigger.Event >>= mMouseEvent;
+ m_MouseButton= mMouseEvent.Buttons;
+ mXDragSrcListener = listener;
+ mXCurrentContext = static_cast<XDragSourceContext*>(new DragSourceContext);
+ rtl::Reference<AquaClipboard> clipb(new AquaClipboard(nullptr, false));
+ g_XTransferable = transferable;
+ clipb->setContents(g_XTransferable, uno::Reference<XClipboardOwner>());
+ mDragSourceActions = sourceActions;
+ g_DragSourceView = mView;
+
+ NSSize sz;
+ sz.width = 5;
+ sz.height = 5;
+
+ NSImage* dragImage;
+ dragImage = [[NSImage alloc] initWithSize: sz];
+
+ NSRect bounds;
+ bounds.origin = NSMakePoint(0,0);
+ bounds.size = sz;
+
+ [dragImage lockFocus];
+ [[NSColor blackColor] set];
+ [NSBezierPath fillRect: bounds];
+ [dragImage unlockFocus];
+
+ NSPoint pInWnd = [mLastMouseEventBeforeStartDrag locationInWindow];
+ NSPoint p;
+ p = [mView convertPoint: pInWnd fromView: nil];
+ p.x = p.x - sz.width/2;
+ p.y = p.y - sz.height/2;
+
+ // reset drop success flags
+ g_DropSuccessSet = false;
+ g_DropSuccess = false;
+
+ SAL_WNODEPRECATED_DECLARATIONS_PUSH
+ //TODO: 10.7 dragImage:at:offset:event:pasteboard:source:slideBack:
+ [mView dragImage: dragImage
+ at: p
+ offset: NSMakeSize(0,0)
+ event: mLastMouseEventBeforeStartDrag
+ pasteboard: clipb->getPasteboard()
+ source: mDragSourceHelper
+ slideBack: true];
+ SAL_WNODEPRECATED_DECLARATIONS_POP
+
+ [dragImage release];
+
+ g_XTransferable.clear();
+ g_DragSourceView = nil;
+
+ // reset drop success flags
+ g_DropSuccessSet = false;
+ g_DropSuccess = false;
+}
+
+// In order to initiate a D&D operation we need to
+// provide the triggering mouse event which we get
+// from the SalFrameView that is associated with
+// this DragSource
+void DragSource::saveMouseEvent(NSEvent* theEvent)
+{
+ if (mLastMouseEventBeforeStartDrag != nil)
+ {
+ [mLastMouseEventBeforeStartDrag release];
+ }
+
+ mLastMouseEventBeforeStartDrag = theEvent;
+}
+
+/* isLocal indicates whether or not the DnD operation is OOo
+ internal.
+ */
+unsigned int DragSource::getSupportedDragOperations(bool isLocal) const
+{
+ unsigned int srcActions = OfficeToSystemDragActions(mDragSourceActions);
+
+ if (isLocal)
+ {
+ // Support NSDragOperation generic which means we can
+ // decide which D&D operation to choose. We map
+ // NSDragOperationGeneric to DNDConstants::ACTION_DEFAULT
+ // in SystemToOfficeDragActions to signal this and
+ // use it in DropTarget::determineDropAction
+ srcActions |= NSDragOperationGeneric;
+ }
+ else
+ {
+ // Mask out link and move operations on external DnD
+ srcActions &= ~(NSDragOperationMove | NSDragOperationLink);
+ }
+
+ return srcActions;
+}
+
+OUString SAL_CALL DragSource::getImplementationName( )
+{
+ return dragSource_getImplementationName();
+}
+
+sal_Bool SAL_CALL DragSource::supportsService( const OUString& ServiceName )
+{
+ return cppu::supportsService(this, ServiceName);
+}
+
+Sequence< OUString > SAL_CALL DragSource::getSupportedServiceNames()
+{
+ return dragSource_getSupportedServiceNames();
+}
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */