public void CopyItem(ItemVM copiedItemVM)
{
this.copiedItemVM = copiedItemVM;
cutCopiedItemVM = false;
// Save to settings
// No need to save here as there is no change to the data contex
}
public void NewGroup(ObservableCollection <ItemVM> itemVMs)
{
// Create a new group
ItemVM itemVM = ContextHelper.NewGroup();
itemVMs.Add(itemVM);
SaveData.SaveShortcuts(false);
}
public void DeleteItem(ItemVM itemVMToDelete)
{
bool stop = false;
foreach (WindowItemVM windowItemVM in WindowItemVMs)
{
if (windowItemVM.RootItemVMs.Contains(itemVMToDelete))
{
// Delete physical file/s first
ShortcutUtils.DeleteShortcuts(itemVMToDelete);
// Delete the item
windowItemVM.RootItemVMs.Remove(itemVMToDelete);
stop = true;
break;
}
foreach (ItemVM rootItemVM in windowItemVM.RootItemVMs)
{
IEnumerable <ItemVM> itemVMs = rootItemVM.FlattenItemVMs();
foreach (ItemVM itemVM in itemVMs)
{
if (itemVM.IsGroup)
{
if (itemVM.ItemVMs.Contains(itemVMToDelete))
{
// Delete physical file/s first
ShortcutUtils.DeleteShortcuts(itemVMToDelete);
// Delete the item
itemVM.ItemVMs.Remove(itemVMToDelete);
//
stop = true;
break;
}
}
if (stop)
{
break;
}
}
if (stop)
{
break;
}
}
if (stop)
{
break;
}
}
SaveData.SaveShortcuts(false);
}
public void PasteItem(ObservableCollection <ItemVM> itemVMs)
{
if (copiedItemVM != null)
{
// Patste the copiedItemVM
ItemVM clonedItemVM = ContextHelper.DeepCloneItemVM(copiedItemVM);
itemVMs.Add(clonedItemVM);
if (cutCopiedItemVM)
{
// Delete copiedItemVM
DeleteItem(copiedItemVM);
// Save to settings
// No need to save here as DeleteItem has its own save statement
}
else
{
SaveData.SaveShortcuts(false);
}
}
}
public void Drop(IDropInfo dropInfo)
{
// There is nothing we can do here.
if (dropInfo == null)
{
return;
}
// Data is populated from external and internal drag & drop. If it is null there is nothing we can do here.
if (dropInfo.Data == null)
{
return;
}
// Check if target is not group, if yes, then there is nothing we can do here.
bool targetIsTreeViewItem = dropInfo.InsertPosition.HasFlag(RelativeInsertPosition.TargetItemCenter) && dropInfo.VisualTargetItem is TreeViewItem;
if (targetIsTreeViewItem)
{
TreeViewItem treeViewItem = (TreeViewItem)dropInfo.VisualTargetItem;
ItemVM itemVM = (ItemVM)treeViewItem.DataContext;
if (!itemVM.IsGroup)
{
return;
}
}
// Target is group proced with the other checks...
var insertIndex = dropInfo.InsertIndex != dropInfo.UnfilteredInsertIndex ? dropInfo.UnfilteredInsertIndex : dropInfo.InsertIndex;
var itemsControl = dropInfo.VisualTarget as ItemsControl;
if (itemsControl != null)
{
var editableItems = itemsControl.Items as IEditableCollectionView;
if (editableItems != null)
{
var newItemPlaceholderPosition = editableItems.NewItemPlaceholderPosition;
if (newItemPlaceholderPosition == NewItemPlaceholderPosition.AtBeginning && insertIndex == 0)
{
++insertIndex;
}
else if (newItemPlaceholderPosition == NewItemPlaceholderPosition.AtEnd && insertIndex == itemsControl.Items.Count)
{
--insertIndex;
}
}
}
var destinationList = dropInfo.TargetCollection.TryGetList();
var data = ExtractData(dropInfo.Data).OfType <object>().ToList();
// If this is a move for sure it is from the internal Drag & Drop, so delete the source item.
DragDropEffects dragDropEffects = GetDragDropEffects(dropInfo);
if (dragDropEffects == DragDropEffects.Move)
{
if (dropInfo.DragInfo != null)
{
// This is a drag & drop item from treeview its self
var sourceList = dropInfo.DragInfo.SourceCollection.TryGetList();
if (sourceList != null)
{
foreach (var o in data)
{
var index = sourceList.IndexOf(o);
if (index != -1)
{
sourceList.RemoveAt(index);
// so, is the source list the destination list too ?
if (destinationList != null && Equals(sourceList, destinationList) && index < insertIndex)
{
--insertIndex;
}
}
}
}
}
}
// Add item
if (destinationList != null)
{
// check for cloning
var cloneData = dropInfo.Effects.HasFlag(DragDropEffects.Copy) || dropInfo.Effects.HasFlag(DragDropEffects.Link);
foreach (var o in data)
{
// ----------------------------------------------
// This is a Drag & Drop from the external source
// ----------------------------------------------
if (dropInfo.Data is DataObject)
{
DataObject dataObject = o as DataObject;
if (dataObject != null)
{
// ******************************************************************************************************************************************
// FileDrop. Queries a data object for the presence of data in the System.Windows.DataFormats.FileDrop data format.
// ******************************************************************************************************************************************
if (dataObject.ContainsFileDropList() && dataObject.GetDataPresent(DataFormats.FileDrop, true))
{
// We can have more than one file dropped.
var droppedFilePaths = dataObject.GetFileDropList();
foreach (string droppedFilePath in droppedFilePaths)
{
string shortcutsDirectoryPath = Helper.GetShortcutsPath();
string guid = NewData.NewGuid();
string name = Path.GetFileName(droppedFilePath);
DirectoryInfo directoryInfo = new DirectoryInfo(droppedFilePath);
if (directoryInfo.Parent == null)
{
// This is the root. In that case name is empty so we need to set the name differently.
DriveInfo driveInfo = new DriveInfo(droppedFilePath);
// Something like this: Local Disk (C:)
string volumeLabel = driveInfo.VolumeLabel;
if (string.IsNullOrEmpty(volumeLabel))
{
volumeLabel = "Drive";
}
name = $"{volumeLabel} ({driveInfo.Name.Replace(@"\", "")})";
}
ItemVM obj2Insert = null;
// Check if the dropped file is a .lnk file. We just copy the .lnk files to the sortcuts folder and use them from there.
if (Path.GetExtension(droppedFilePath).Equals(Constants.EXT_LNK, StringComparison.InvariantCultureIgnoreCase))
{
// This is a .lnk file. In this case we copy this file to our shortcuts
string shortcutLnkFilePath = Path.Combine(shortcutsDirectoryPath, guid + Constants.EXT_LNK);
File.Copy(droppedFilePath, shortcutLnkFilePath);
obj2Insert = new ItemVM(guid, false, false, name, shortcutLnkFilePath, Constants.EXT_LNK);
}
// Check if the dropped file is a .url file. We just copy the .url files to the sortcuts folder and use them from there.
else if (Path.GetExtension(droppedFilePath).Equals(Constants.EXT_URL, StringComparison.InvariantCultureIgnoreCase))
{
// This is a .url file. In this case we copy this file to our shortcuts
string shortcutUrlFilePath = Path.Combine(shortcutsDirectoryPath, guid + Constants.EXT_URL);
File.Copy(droppedFilePath, shortcutUrlFilePath);
obj2Insert = new ItemVM(guid, false, false, name, shortcutUrlFilePath, Constants.EXT_URL);
}
else
{
obj2Insert = new ItemVM(guid, false, false, name, droppedFilePath, Constants.EXT_LNK);
}
destinationList.Insert(insertIndex++, obj2Insert);
SaveShortcutSettings();
}
}
// ******************************************************************************************************************************************
// AbsoluteUri. Queries a data object for the presence of data in the System.Windows.DataFormats.UnicodeText format.
// ******************************************************************************************************************************************
else if (dataObject.ContainsText() && dataObject.GetDataPresent(DataFormats.Text, true))
{
string dataText = (string)dataObject.GetData(DataFormats.Text, true);
Uri uri;
bool isAbsoluteUri = Uri.TryCreate(dataText, UriKind.Absolute, out uri);
if (isAbsoluteUri)
{
ItemVM obj2Insert = new ItemVM(NewData.NewGuid(), false, false, uri.AbsoluteUri, uri.AbsoluteUri, Constants.EXT_URL);
destinationList.Insert(insertIndex++, obj2Insert);
// Save shortcut settings.
SaveShortcutSettings();
}
}
else
{
// ******************************************************************************************************************************************
// ShellIDListArray. Perhaps data contain virtual files
// ******************************************************************************************************************************************
// Returns a list of formats in which the data in this data object is stored, or can be converted to.
string[] formats = dataObject.GetFormats();
foreach (string format in formats)
{
if (format == "Shell IDList Array")
{
// Virtual file/s been draged.
string message = "To create this kind of shortcut please do:\n";
message += "1. Drag to create a desktop shortcut first,\n";
message += "2. Drag the shortcut from desktop to MDSHO,\n";
message += "3. Delete the shortcut from desktop if you want.";
Window parent = Helper.GetWindowFromWindowItemVM(this);
MessageBox.Show(parent, message, "Information", MessageBoxButton.OK, MessageBoxImage.Information);
}
}
}
}
}
// ---------------------------------------------------------------------------
// This is a Drag & Drop from the internal source. Item from treeview its self
// ---------------------------------------------------------------------------
else
{
var obj2Insert = o;
if (cloneData)
{
var cloneable = o as ICloneable;
if (cloneable != null)
{
obj2Insert = cloneable.Clone();
}
}
destinationList.Insert(insertIndex++, obj2Insert);
// Save shortcut settings.
SaveShortcutSettings();
}
}
}
}
public static bool CanAcceptData(IDropInfo dropInfo)
{
// There is nothing we can do here.
if (dropInfo == null)
{
return(false);
}
// Data is populated from external and internal drag & drop. If it is null there is nothing we can do here.
if (dropInfo.Data == null)
{
return(false);
}
// Check if target is not group, then there is nothing we can do here.
bool targetIsTreeViewItem = dropInfo.InsertPosition.HasFlag(RelativeInsertPosition.TargetItemCenter) && dropInfo.VisualTargetItem is TreeViewItem;
if (targetIsTreeViewItem)
{
TreeViewItem treeViewItem = (TreeViewItem)dropInfo.VisualTargetItem;
ItemVM itemVM = (ItemVM)treeViewItem.DataContext;
if (!itemVM.IsGroup)
{
return(false);
}
}
// Target is group proced with the other checks...
// ------------------------------------------------------------------
// Check if Drag & Drop is from external source
// ------------------------------------------------------------------
if (dropInfo.Data is DataObject)
{
return(true);
}
// ------------------------------------------------------------------
// Drag & Drop is from internal source
// ------------------------------------------------------------------
// Prevent target is in the same context as the source
if (!dropInfo.IsSameDragDropContextAsSource)
{
return(false);
}
// do not drop on itself
if (targetIsTreeViewItem && dropInfo.VisualTargetItem == dropInfo.DragInfo.VisualSourceItem)
{
return(false);
}
//
if (dropInfo.DragInfo.SourceCollection == dropInfo.TargetCollection)
{
var targetList = dropInfo.TargetCollection.TryGetList();
return(targetList != null);
}
//else if (dropInfo.DragInfo.SourceCollection is ItemCollection)
//{
// return false;
//}
else if (dropInfo.TargetCollection == null)
{
return(false);
}
else
{
if (TestCompatibleTypes(dropInfo.TargetCollection, dropInfo.Data))
{
var isChildOf = IsChildOf(dropInfo.VisualTargetItem, dropInfo.DragInfo.VisualSourceItem);
return(!isChildOf);
}
else
{
return(false);
}
}
}