office-gobmx/vcl/osx/DropTarget.cxx
Mike Kaganski b4de1a98e6 Use getXWeak in vcl
Change-Id: I665c9dc8c4f9cc4a996d9bf990cbfa33822bd07f
Reviewed-on: https://gerrit.libreoffice.org/c/core/+/150885
Tested-by: Jenkins
Reviewed-by: Mike Kaganski <mike.kaganski@collabora.com>
2023-05-28 11:50:12 +02:00

543 lines
17 KiB
C++

/* -*- 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/datatransfer/dnd/DropTargetDragEnterEvent.hpp>
#include <cppuhelper/interfacecontainer.hxx>
#include "clipboard.hxx"
#include "DropTarget.hxx"
#include "DragActionConversion.hxx"
#include "DragSource.hxx"
#include <rtl/ustring.h>
#include <premac.h>
#include <Carbon/Carbon.h>
#include <postmac.h>
#include <osx/salframe.h>
#include <osx/salframeview.h>
#include <cppuhelper/supportsservice.hxx>
using namespace cppu;
using namespace osl;
using namespace com::sun::star::datatransfer;
using namespace com::sun::star::datatransfer::dnd;
using namespace com::sun::star::datatransfer::dnd::DNDConstants;
using namespace com::sun::star::datatransfer::clipboard;
using namespace com::sun::star::lang;
using namespace com::sun::star::uno;
using namespace com::sun::star;
using namespace comphelper;
static OUString dropTarget_getImplementationName()
{
return "com.sun.star.comp.datatransfer.dnd.OleDropTarget_V1";
}
static Sequence<OUString> dropTarget_getSupportedServiceNames()
{
return { OUString("com.sun.star.datatransfer.dnd.OleDropTarget") };
}
namespace /* private */
{
// Cocoa's coordinate system has its origin lower-left, VCL's
// coordinate system upper-left hence we need to transform
// coordinates
void CocoaToVCL(NSPoint& rPoint, const NSRect& bounds)
{
rPoint.y = bounds.size.height - rPoint.y;
}
}
@implementation DropTargetHelper
-(DropTargetHelper*)initWithDropTarget:(DropTarget*)pdt
{
self = [super init];
if (self)
{
mDropTarget = pdt;
}
return self;
}
-(NSDragOperation)draggingEntered:(id <NSDraggingInfo>)sender
{
return mDropTarget->draggingEntered(sender);
}
-(NSDragOperation)draggingUpdated:(id <NSDraggingInfo>)sender
{
return mDropTarget->draggingUpdated(sender);
}
-(void)draggingExited:(id <NSDraggingInfo>)sender
{
mDropTarget->draggingExited(sender);
}
-(BOOL)prepareForDragOperation:(id <NSDraggingInfo>)sender
{
(void) sender;
return DropTarget::prepareForDragOperation();
}
-(BOOL)performDragOperation:(id <NSDraggingInfo>)sender
{
(void) sender;
return mDropTarget->performDragOperation();
}
-(void)concludeDragOperation:(id <NSDraggingInfo>)sender
{
mDropTarget->concludeDragOperation(sender);
}
@end
DropTarget::DropTarget() :
WeakComponentImplHelper<XInitialization, XDropTarget, XDropTargetDragContext, XDropTargetDropContext, XServiceInfo>(m_aMutex),
mView(nil),
mpFrame(nullptr),
mDropTargetHelper(nil),
mbActive(false),
mDragSourceSupportedActions(DNDConstants::ACTION_NONE),
mSelectedDropAction(DNDConstants::ACTION_NONE),
mDefaultActions(DNDConstants::ACTION_COPY_OR_MOVE | DNDConstants::ACTION_LINK | DNDConstants::ACTION_DEFAULT)
{
mDataFlavorMapper = std::make_shared<DataFlavorMapper>();
}
DropTarget::~DropTarget()
{
if( AquaSalFrame::isAlive( mpFrame ) )
[static_cast<id <DraggingDestinationHandler>>(mView) unregisterDraggingDestinationHandler:mDropTargetHelper];
[mDropTargetHelper release];
}
sal_Int8 DropTarget::determineDropAction(sal_Int8 dropActions, id sender) const
{
sal_Int8 dropAct = dropActions;
bool srcAndDestEqual = false;
if ([sender draggingSource] != nil)
{
// Internal DnD
NSView* destView = [[sender draggingDestinationWindow] contentView];
srcAndDestEqual = (DragSource::g_DragSourceView == destView);
}
// If ACTION_DEFAULT is set this means NSDragOperationGeneric
// has been set and we map this to ACTION_MOVE or ACTION_COPY
// depending on whether or not source and dest are equal,
// this hopefully satisfies all parties
if( (dropActions == DNDConstants::ACTION_DEFAULT)
|| ((dropActions == mDragSourceSupportedActions)
&& !(~mDragSourceSupportedActions & DNDConstants::ACTION_COPY_OR_MOVE ) ) )
{
dropAct = srcAndDestEqual ? DNDConstants::ACTION_MOVE :
DNDConstants::ACTION_COPY;
}
// if more than one drop actions have been specified
// set ACTION_DEFAULT in order to let the drop target
// decide which one to use
else if (dropActions != DNDConstants::ACTION_NONE &&
dropActions != DNDConstants::ACTION_MOVE &&
dropActions != DNDConstants::ACTION_COPY &&
dropActions != DNDConstants::ACTION_LINK)
{
if (srcAndDestEqual)
{
dropAct = dropActions;
}
else // source and destination are different
{
if (dropActions & DNDConstants::ACTION_COPY)
dropAct = DNDConstants::ACTION_COPY;
else if (dropActions & DNDConstants::ACTION_MOVE)
dropAct = DNDConstants::ACTION_MOVE;
else if (dropActions & DNDConstants::ACTION_LINK)
dropAct = DNDConstants::ACTION_LINK;
}
dropAct |= DNDConstants::ACTION_DEFAULT;
}
return dropAct;
}
NSDragOperation DropTarget::draggingEntered(id sender)
{
// Initially when DnD will be started no modifier key can be pressed yet
// thus we are getting all actions that the drag source supports, we save
// this value because later the system masks the drag source actions if
// a modifier key will be pressed
mDragSourceSupportedActions = SystemToOfficeDragActions([sender draggingSourceOperationMask]);
// Only if the drop target is really interested in the drag actions
// supported by the source
if (mDragSourceSupportedActions & mDefaultActions)
{
sal_Int8 currentAction = determineDropAction(mDragSourceSupportedActions, sender);
NSRect bounds = [mView bounds];
NSPoint mouseLoc = [NSEvent mouseLocation];
id wnd = [mView window];
NSPoint dragLocation = [mView convertPoint:[wnd convertRectFromScreen:NSMakeRect(mouseLoc.x, mouseLoc.y, 1, 1)].origin fromView:nil];
CocoaToVCL(dragLocation, bounds);
sal_Int32 posX = static_cast<sal_Int32>(dragLocation.x);
sal_Int32 posY = static_cast<sal_Int32>(dragLocation.y);
NSPasteboard* dragPboard = [sender draggingPasteboard];
mXCurrentDragClipboard = new AquaClipboard(dragPboard, false);
uno::Reference<XTransferable> xTransferable = DragSource::g_XTransferable.is() ?
DragSource::g_XTransferable : mXCurrentDragClipboard->getContents();
DropTargetDragEnterEvent dtdee(getXWeak(),
0,
this,
currentAction,
posX,
posY,
mDragSourceSupportedActions,
xTransferable->getTransferDataFlavors());
fire_dragEnter(dtdee);
}
return OfficeToSystemDragActions(mSelectedDropAction);
}
NSDragOperation DropTarget::draggingUpdated(id sender)
{
sal_Int8 currentDragSourceActions =
SystemToOfficeDragActions([sender draggingSourceOperationMask]);
NSDragOperation dragOp = NSDragOperationNone;
if (currentDragSourceActions & mDefaultActions)
{
sal_Int8 currentAction = determineDropAction(currentDragSourceActions, sender);
NSRect bounds = [mView bounds];
NSPoint mouseLoc = [NSEvent mouseLocation];
id wnd = [mView window];
NSPoint dragLocation = [mView convertPoint:[wnd convertRectFromScreen:NSMakeRect(mouseLoc.x, mouseLoc.y, 1, 1)].origin fromView:nil];
CocoaToVCL(dragLocation, bounds);
sal_Int32 posX = static_cast<sal_Int32>(dragLocation.x);
sal_Int32 posY = static_cast<sal_Int32>(dragLocation.y);
DropTargetDragEvent dtde(getXWeak(),
0,
this,
currentAction,
posX,
posY,
mDragSourceSupportedActions);
fire_dragOver(dtde);
// drag over callbacks likely have rendered something
[mView setNeedsDisplay: true];
dragOp = OfficeToSystemDragActions(mSelectedDropAction);
//NSLog(@"Drag update: Source actions: %x proposed action %x selected action %x", mDragSourceSupportedActions, currentAction, mSelectedDropAction);
}
if (dragOp == NSDragOperationNone)
[[NSCursor operationNotAllowedCursor] set];
else if (dragOp == NSDragOperationCopy)
[[NSCursor dragCopyCursor] set];
else
[[NSCursor arrowCursor] set];
return dragOp;
}
void DropTarget::draggingExited(id /*sender*/)
{
DropTargetEvent dte(getXWeak(), 0);
fire_dragExit(dte);
mDragSourceSupportedActions = DNDConstants::ACTION_NONE;
mSelectedDropAction = DNDConstants::ACTION_NONE;
[[NSCursor arrowCursor] set];
}
BOOL DropTarget::prepareForDragOperation()
{
return true;
}
BOOL DropTarget::performDragOperation()
{
bool bSuccess = false;
if (mSelectedDropAction != DNDConstants::ACTION_NONE)
{
uno::Reference<XTransferable> xTransferable = DragSource::g_XTransferable;
if (!DragSource::g_XTransferable.is())
{
xTransferable = mXCurrentDragClipboard->getContents();
}
NSRect bounds = [mView bounds];
NSPoint mouseLoc = [NSEvent mouseLocation];
id wnd = [mView window];
NSPoint dragLocation = [mView convertPoint:[wnd convertRectFromScreen:NSMakeRect(mouseLoc.x, mouseLoc.y, 1, 1)].origin fromView:nil];
CocoaToVCL(dragLocation, bounds);
sal_Int32 posX = static_cast<sal_Int32>(dragLocation.x);
sal_Int32 posY = static_cast<sal_Int32>(dragLocation.y);
DropTargetDropEvent dtde(getXWeak(),
0,
this,
mSelectedDropAction,
posX,
posY,
mDragSourceSupportedActions,
xTransferable);
fire_drop(dtde);
bSuccess = true;
}
return bSuccess;
}
void DropTarget::concludeDragOperation(id /*sender*/)
{
mDragSourceSupportedActions = DNDConstants::ACTION_NONE;
mSelectedDropAction = DNDConstants::ACTION_NONE;
mXCurrentDragClipboard.clear();
[[NSCursor arrowCursor] set];
}
// called from WeakComponentImplHelperX::dispose
// WeakComponentImplHelper calls disposing before it destroys
// itself.
void SAL_CALL DropTarget::disposing()
{
}
void SAL_CALL DropTarget::initialize(const Sequence< Any >& aArguments)
{
if (aArguments.getLength() < 2)
{
throw RuntimeException("DropTarget::initialize: Cannot install window event handler",
getXWeak());
}
Any pNSView = aArguments[0];
sal_uInt64 tmp = 0;
pNSView >>= tmp;
mView = reinterpret_cast<id>(tmp);
mpFrame = [static_cast<SalFrameView*>(mView) getSalFrame];
mDropTargetHelper = [[DropTargetHelper alloc] initWithDropTarget: this];
[static_cast<id <DraggingDestinationHandler>>(mView) registerDraggingDestinationHandler:mDropTargetHelper];
[mView registerForDraggedTypes: DataFlavorMapper::getAllSupportedPboardTypes()];
id wnd = [mView window];
NSWindow* parentWnd = [wnd parentWindow];
unsigned int topWndStyle = (NSWindowStyleMaskTitled | NSWindowStyleMaskClosable | NSWindowStyleMaskResizable);
unsigned int wndStyles = [wnd styleMask] & topWndStyle;
if (parentWnd == nil && (wndStyles == topWndStyle))
{
[wnd registerDraggingDestinationHandler:mDropTargetHelper];
SAL_WNODEPRECATED_DECLARATIONS_PUSH
// "'NSFilenamesPboardType' is deprecated: first deprecated in macOS 10.14 - Create
// multiple pasteboard items with NSPasteboardTypeFileURL or kUTTypeFileURL instead"
[wnd registerForDraggedTypes: [NSArray arrayWithObjects: NSFilenamesPboardType, nil]];
SAL_WNODEPRECATED_DECLARATIONS_POP
}
}
void SAL_CALL DropTarget::addDropTargetListener(const uno::Reference<XDropTargetListener>& dtl)
{
rBHelper.addListener(cppu::UnoType<decltype(dtl)>::get(), dtl);
}
void SAL_CALL DropTarget::removeDropTargetListener(const uno::Reference<XDropTargetListener>& dtl)
{
rBHelper.removeListener(cppu::UnoType<decltype(dtl)>::get(), dtl);
}
sal_Bool SAL_CALL DropTarget::isActive( )
{
return mbActive;
}
void SAL_CALL DropTarget::setActive(sal_Bool active)
{
mbActive = active;
}
sal_Int8 SAL_CALL DropTarget::getDefaultActions()
{
return mDefaultActions;
}
void SAL_CALL DropTarget::setDefaultActions(sal_Int8 actions)
{
OSL_ENSURE( actions < 8, "No valid default actions");
mDefaultActions= actions;
}
void SAL_CALL DropTarget::acceptDrag(sal_Int8 dragOperation)
{
mSelectedDropAction = dragOperation;
}
void SAL_CALL DropTarget::rejectDrag()
{
mSelectedDropAction = DNDConstants::ACTION_NONE;
}
void SAL_CALL DropTarget::acceptDrop(sal_Int8 dropOperation)
{
mSelectedDropAction = dropOperation;
}
void SAL_CALL DropTarget::rejectDrop()
{
mSelectedDropAction = DNDConstants::ACTION_NONE;
}
void SAL_CALL DropTarget::dropComplete(sal_Bool success)
{
// Reset the internal transferable used as shortcut in case this is
// an internal D&D operation
DragSource::g_XTransferable.clear();
DragSource::g_DropSuccessSet = true;
DragSource::g_DropSuccess = success;
}
void DropTarget::fire_drop( const DropTargetDropEvent& dte)
{
OInterfaceContainerHelper* pContainer= rBHelper.getContainer( cppu::UnoType<XDropTargetListener>::get());
if( pContainer)
{
OInterfaceIteratorHelper iter( *pContainer);
while( iter.hasMoreElements())
{
uno::Reference<XDropTargetListener> listener( static_cast<XDropTargetListener*>( iter.next()));
try { listener->drop( dte); }
catch(RuntimeException&) {}
}
}
}
void DropTarget::fire_dragEnter(const DropTargetDragEnterEvent& e)
{
OInterfaceContainerHelper* pContainer= rBHelper.getContainer( cppu::UnoType<XDropTargetListener>::get());
if( pContainer)
{
OInterfaceIteratorHelper iter( *pContainer);
while( iter.hasMoreElements())
{
uno::Reference<XDropTargetListener> listener( static_cast<XDropTargetListener*>( iter.next()));
try { listener->dragEnter( e); }
catch (RuntimeException&) {}
}
}
}
void DropTarget::fire_dragExit(const DropTargetEvent& dte)
{
OInterfaceContainerHelper* pContainer= rBHelper.getContainer( cppu::UnoType<XDropTargetListener>::get());
if( pContainer)
{
OInterfaceIteratorHelper iter( *pContainer);
while( iter.hasMoreElements())
{
uno::Reference<XDropTargetListener> listener( static_cast<XDropTargetListener*>( iter.next()));
try { listener->dragExit( dte); }
catch (RuntimeException&) {}
}
}
}
void DropTarget::fire_dragOver(const DropTargetDragEvent& dtde)
{
OInterfaceContainerHelper* pContainer= rBHelper.getContainer( cppu::UnoType<XDropTargetListener>::get());
if( pContainer)
{
OInterfaceIteratorHelper iter( *pContainer );
while( iter.hasMoreElements())
{
uno::Reference<XDropTargetListener> listener( static_cast<XDropTargetListener*>( iter.next()));
try { listener->dragOver( dtde); }
catch (RuntimeException&) {}
}
}
}
void DropTarget::fire_dropActionChanged(const DropTargetDragEvent& dtde)
{
OInterfaceContainerHelper* pContainer= rBHelper.getContainer( cppu::UnoType<XDropTargetListener>::get());
if( pContainer)
{
OInterfaceIteratorHelper iter( *pContainer);
while( iter.hasMoreElements())
{
uno::Reference<XDropTargetListener> listener( static_cast<XDropTargetListener*>( iter.next()));
try { listener->dropActionChanged( dtde); }
catch (RuntimeException&) {}
}
}
}
OUString SAL_CALL DropTarget::getImplementationName()
{
return dropTarget_getImplementationName();
}
sal_Bool SAL_CALL DropTarget::supportsService( const OUString& ServiceName )
{
return cppu::supportsService(this, ServiceName);
}
Sequence< OUString > SAL_CALL DropTarget::getSupportedServiceNames( )
{
return dropTarget_getSupportedServiceNames();
}
/* vim:set shiftwidth=4 softtabstop=4 expandtab: */