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/* GWViewerScrollView.m
*
* Copyright (C) 2004-2013 Free Software Foundation, Inc.
*
* Author: Enrico Sersale <enrico@imago.ro>
* Date: December 2004
*
* This file is part of the GNUstep GWorkspace application
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 31 Milk Street #960789 Boston, MA 02196 USA.
*/
#import <AppKit/AppKit.h>
#import "FSNFunctions.h"
#import "GWViewerScrollView.h"
#import "GWViewer.h"
@implementation GWViewerScrollView
- (id)initWithFrame:(NSRect)frameRect
inViewer:(id)aviewer
{
self = [super initWithFrame: frameRect];
if (self) {
viewer = aviewer;
}
return self;
}
- (void)setDocumentView:(NSView *)aView
{
[super setDocumentView: aView];
if (aView != nil) {
nodeView = [viewer nodeView];
if ([nodeView needsDndProxy]) {
[self registerForDraggedTypes: [NSArray arrayWithObjects:
NSFilenamesPboardType,
@"GWLSFolderPboardType",
@"GWRemoteFilenamesPboardType",
nil]];
} else {
[self unregisterDraggedTypes];
}
} else {
nodeView = nil;
[self unregisterDraggedTypes];
}
}
@end
@implementation GWViewerScrollView (DraggingDestination)
- (NSDragOperation)draggingEntered:(id <NSDraggingInfo>)sender
{
if (nodeView && [nodeView needsDndProxy]) {
return [nodeView draggingEntered: sender];
}
return NSDragOperationNone;
}
- (NSDragOperation)draggingUpdated:(id <NSDraggingInfo>)sender
{
if (nodeView && [nodeView needsDndProxy]) {
return [nodeView draggingUpdated: sender];
}
return NSDragOperationNone;
}
- (void)draggingExited:(id <NSDraggingInfo>)sender
{
if (nodeView && [nodeView needsDndProxy]) {
[nodeView draggingExited: sender];
}
}
- (BOOL)prepareForDragOperation:(id <NSDraggingInfo>)sender
{
if (nodeView && [nodeView needsDndProxy]) {
return [nodeView prepareForDragOperation: sender];
}
return NO;
}
- (BOOL)performDragOperation:(id <NSDraggingInfo>)sender
{
if (nodeView && [nodeView needsDndProxy]) {
return [nodeView performDragOperation: sender];
}
return NO;
}
- (void)concludeDragOperation:(id <NSDraggingInfo>)sender
{
if (nodeView && [nodeView needsDndProxy]) {
[nodeView concludeDragOperation: sender];
}
}
@end
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