Files
MacPass/MacPass/MPOutlineDataSource.m
2018-11-14 17:49:37 +01:00

239 lines
8.9 KiB
Objective-C

//
// MPOutlineDataSource.m
// MacPass
//
// Created by Michael Starke on 19.07.12.
// Copyright (c) 2012 HicknHack Software GmbH. All rights reserved.
//
// 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 3 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, see <http://www.gnu.org/licenses/>.
//
#import "MPOutlineDataSource.h"
#import "MPDocument.h"
#import "MPConstants.h"
#import "NSIndexPath+MPAdditions.h"
#import "KeePassKit/KeePassKit.h"
@interface MPOutlineDataSource ()
@property (strong) NSArray<KPKGroup *> *draggedGroups;
@end
@implementation MPOutlineDataSource
- (id<NSPasteboardWriting>)outlineView:(NSOutlineView *)outlineView pasteboardWriterForItem:(id)item {
id representedObject = [item representedObject];
if([representedObject isKindOfClass:KPKGroup.class]) {
KPKGroup *group = representedObject;
return group;
}
return nil;
}
- (void)outlineView:(NSOutlineView *)outlineView draggingSession:(NSDraggingSession *)session willBeginAtPoint:(NSPoint)screenPoint forItems:(NSArray *)draggedItems {
session.draggingFormation = NSDraggingFormationList;
self.draggedGroups = @[];
NSMutableArray *localDraggedGroups = [[NSMutableArray alloc] init];
for(NSTreeNode *node in draggedItems) {
BOOL addNode = YES;
for(NSTreeNode *otherNode in draggedItems) {
if(node == otherNode) {
continue;
}
addNode &= ![otherNode.indexPath containsIndexPath:node.indexPath];
}
if(addNode) {
KPKGroup *group = node.representedObject;
[localDraggedGroups addObject:group];
}
}
self.draggedGroups = [localDraggedGroups copy];
}
- (NSDragOperation)outlineView:(NSOutlineView *)outlineView validateDrop:(id<NSDraggingInfo>)info proposedItem:(id)item proposedChildIndex:(NSInteger)index {
info.animatesToDestination = YES;
id targetItem = [item representedObject];
if( ![targetItem isKindOfClass:KPKGroup.class] ) {
return NSDragOperationNone; // Block all unknown types
}
BOOL copyDrag = (info.draggingSourceOperationMask == NSDragOperationCopy);
KPKGroup *targetGroup = targetItem;
BOOL isGroupDrop = (info.draggingSource == outlineView);
BOOL isEntryDrop = (!isGroupDrop && [info.draggingSource window] == outlineView.window);
if(isGroupDrop) {
/* local group drop */
for(KPKGroup *draggedGroup in self.draggedGroups) {
BOOL validTarget = YES;
if(targetGroup == draggedGroup) {
return copyDrag ? NSDragOperationCopy : NSDragOperationNone;
}
if(draggedGroup.parent == targetGroup) {
if(index == NSOutlineViewDropOnItemIndex) {
return copyDrag ? NSDragOperationCopy : NSDragOperationNone;
}
validTarget &= index != draggedGroup.index;
}
BOOL isAnchesor = [draggedGroup isAnchestorOf:targetGroup];
validTarget &= !isAnchesor;
if(!validTarget) {
return NSDragOperationNone;
}
}
return copyDrag ? NSDragOperationCopy : NSDragOperationMove;
}
else if(isEntryDrop) {
/* local entry drop */
MPDocument *document = outlineView.window.windowController.document;
NSUUID *entryUUID = [self _entryUUIDsFromPasteboard:info.draggingPasteboard].firstObject;
KPKEntry *entry = [document findEntry:entryUUID];
// FIXME: set correct item when drop is proposed between items
if(index != NSOutlineViewDropOnItemIndex) {
NSTreeNode *node = item;
NSUInteger dropIndex = MIN(node.childNodes.count-1, index);
id dropItem = node.childNodes[dropIndex];
[outlineView setDropItem:dropItem dropChildIndex:NSOutlineViewDropOnItemIndex];
}
else {
[outlineView setDropItem:item dropChildIndex:NSOutlineViewDropOnItemIndex];
}
if(entry.parent == targetItem) {
return copyDrag ? NSDragOperationCopy : NSDragOperationNone;
}
return copyDrag ? NSDragOperationCopy : NSDragOperationMove;
}
else {
/* extern drop */
if([info.draggingPasteboard.types containsObject:KPKEntryUUDIUTI]) {
[outlineView setDropItem:item dropChildIndex:NSOutlineViewDropOnItemIndex];
}
return NSDragOperationCopy;
}
}
- (BOOL)outlineView:(NSOutlineView *)outlineView acceptDrop:(id<NSDraggingInfo>)info item:(id)item childIndex:(NSInteger)index {
info.animatesToDestination = YES;
id targetItem = [item representedObject];
if(![targetItem isKindOfClass:KPKGroup.class]) {
return NO; // Wrong
}
BOOL copyItem = (info.draggingSourceOperationMask == NSDragOperationCopy);
KPKGroup *targetGroup = targetItem;
MPDocument *document = outlineView.window.windowController.document;
/* local drop */
if(info.draggingSource == outlineView) {
if(copyItem) {
NSUInteger insertIndex = index;
for(KPKGroup *group in self.draggedGroups.reverseObjectEnumerator) {
KPKGroup *groupCopy = [group copyWithTitle:nil options:kKPKCopyOptionNone];
[groupCopy addToGroup:targetGroup atIndex:insertIndex];
insertIndex = groupCopy.index;
[groupCopy.undoManager setActionName:NSLocalizedString(@"COPY_GROUP", "Action title for copying a group via drag and drop")];
}
return YES;
}
else {
NSUInteger insertIndex = index;
for(KPKGroup *group in self.draggedGroups.reverseObjectEnumerator) {
[group moveToGroup:targetGroup atIndex:insertIndex];
insertIndex = group.index;
[group.undoManager setActionName:NSLocalizedString(@"DRAG_GROUP", "Action title for moving a group via drag and drop")];
}
return YES;
}
}
else if([info.draggingSource window] == outlineView.window) {
NSArray<NSUUID *> *entryUUIDs = [self _entryUUIDsFromPasteboard:info.draggingPasteboard];
if(copyItem) {
for(NSUUID *entryUUID in entryUUIDs) {
KPKEntry *draggedEntry = [[document findEntry:entryUUID] copyWithTitle:nil options:kKPKCopyOptionNone];
[draggedEntry addToGroup:targetGroup];
[draggedEntry.undoManager setActionName:NSLocalizedString(@"COPY_ENTRY", "Action title for copying an entry via drag and drop")];
}
}
else {
for(NSUUID *entryUUID in entryUUIDs) {
KPKEntry *draggedEntry = [document findEntry:entryUUID];
[draggedEntry moveToGroup:targetGroup];
[draggedEntry.undoManager setActionName:NSLocalizedString(@"DRAG_ENTRY", "Action title for moving an entry via drag and drop")];
}
}
return YES;
}
/* external drop */
for(KPKEntry *draggedEntry in [self _entriesFromPasteboard:info.draggingPasteboard]) {
KPKEntry *entry = [draggedEntry copyWithTitle:nil options:kKPKCopyOptionCopyHistory];
[entry addToGroup:targetGroup];
[entry.undoManager setActionName:NSLocalizedString(@"DRAG_ENTRY", "Action title for copying an entry via drag and drop to another database")];
}
for(KPKGroup *draggedGroup in [self _normalizedGroupsFromPasterboard:info.draggingPasteboard]) {
KPKGroup *group = [draggedGroup copyWithTitle:nil options:kKPKCopyOptionCopyHistory];
[group addToGroup:targetGroup];
[group.undoManager setActionName:NSLocalizedString(@"DRAG_GROUP", "Actiontitle for copying groups via drag and drop to antother database")];
}
return YES;
}
- (NSArray<NSUUID *> *)_entryUUIDsFromPasteboard:(NSPasteboard *)pBoard {
if([pBoard.types containsObject:KPKEntryUUDIUTI]) {
if([pBoard canReadObjectForClasses:@[NSUUID.class] options:nil]) {
return [pBoard readObjectsForClasses:@[NSUUID.class] options:nil];
}
}
return @[];
}
- (NSArray<KPKGroup *> *)_normalizedGroupsFromPasterboard:(NSPasteboard *)pBoard {
if([pBoard.types containsObject:KPKGroupUTI]) {
if([pBoard canReadObjectForClasses:@[KPKGroup.class] options:nil]) {
NSArray<KPKGroup *> *groups = [pBoard readObjectsForClasses:@[KPKGroup.class] options:nil];
return [groups filteredArrayUsingPredicate:[NSPredicate predicateWithBlock:^BOOL(id _Nullable evaluatedObject, NSDictionary<NSString *,id> * _Nullable bindings) {
KPKGroup *group = evaluatedObject;
BOOL isValid = YES;
for(KPKGroup *otherGroup in groups) {
if(otherGroup == group) {
continue;
}
if(nil != [otherGroup groupForUUID:group.uuid]) {
isValid = NO;
break;
}
}
return isValid;
}]];
}
}
return @[];
}
- (NSArray<KPKEntry *> *)_entriesFromPasteboard:(NSPasteboard *)pBoard {
if([pBoard.types containsObject:KPKEntryUTI]) {
if([pBoard canReadObjectForClasses:@[KPKEntry.class] options:nil]) {
return [pBoard readObjectsForClasses:@[KPKEntry.class] options:nil];
}
}
return @[];
}
@end