private IntPtr PackageSelectionData(StringBuilder sb, bool addEndFormatDelimiter)
{
if (sb == null || sb.ToString().Length == 0 || this.ItemsDraggedOrCutOrCopied.Count == 0)
{
return(IntPtr.Zero);
}
// Double null at end.
if (addEndFormatDelimiter)
{
if (sb.ToString()[sb.Length - 1] != '\0')
{
sb.Append('\0');
}
}
// We request unmanaged permission to execute the below.
new SecurityPermission(SecurityPermissionFlag.UnmanagedCode).Demand();
_DROPFILES df = new _DROPFILES();
int dwSize = Marshal.SizeOf(df);
Int16 wideChar = 0;
int dwChar = Marshal.SizeOf(wideChar);
int structSize = dwSize + ((sb.Length + 1) * dwChar);
IntPtr ptr = Marshal.AllocHGlobal(structSize);
df.pFiles = dwSize;
df.fWide = 1;
IntPtr data = IntPtr.Zero;
try
{
data = UnsafeNativeMethods.GlobalLock(ptr);
Marshal.StructureToPtr(df, data, false);
IntPtr strData = new IntPtr((long)data + dwSize);
DragDropHelper.CopyStringToHGlobal(sb.ToString(), strData, structSize);
}
finally
{
if (data != IntPtr.Zero)
{
UnsafeNativeMethods.GlobalUnLock(data);
}
}
return(ptr);
}
// Split the series of null terminated strings back up into an array of strings.
static string[] UtilGetFilesFromPROJITEMDrop(IntPtr hDropInfo)
{
string[] result = null;
IntPtr data = Microsoft.VisualStudio.Package.DataObject.GlobalLock(hDropInfo);
try
{
_DROPFILES df = (_DROPFILES)Marshal.PtrToStructure(data, typeof(_DROPFILES));
if (df.fWide != 0)
{// unicode?
IntPtr pdata = new IntPtr((long)data + df.pFiles);
string s = Marshal.PtrToStringUni(pdata);
ArrayList list = new ArrayList();
int pos = 0;
int i = 0;
int len = s.Length;
for (; i < len; i++)
{
if (s[i] == '\0')
{
if (i == len - 1 || s[i + 1] == '\0')
{
break;
}
list.Add(s.Substring(pos, i - 1));
pos = i + 1;
}
}
if (i > pos)
{
list.Add(s.Substring(pos, i));
}
result = (String[])list.ToArray(typeof(string));
}
}
catch
{
}
DataObject.GlobalUnLock(data);
return(result);
}
/// <summary>
/// Returns the data packed after the DROPFILES structure.
/// </summary>
/// <param name="dropHandle"></param>
/// <returns></returns>
internal static string GetData(IntPtr dropHandle)
{
IntPtr data = UnsafeNativeMethods.GlobalLock(dropHandle);
try
{
_DROPFILES df = (_DROPFILES)Marshal.PtrToStructure(data, typeof(_DROPFILES));
if (df.fWide != 0)
{
IntPtr pdata = new IntPtr((long)data + df.pFiles);
return(Marshal.PtrToStringUni(pdata));
}
}
finally
{
if (data != null)
{
UnsafeNativeMethods.GlobalUnLock(data);
}
}
return(null);
}
private IntPtr PackageSelectionData(StringBuilder sb, bool addEndFormatDelimiter)
{
if (sb == null || sb.ToString().Length == 0 || this.ItemsDraggedOrCutOrCopied.Count == 0)
{
return IntPtr.Zero;
}
// Double null at end.
if (addEndFormatDelimiter)
{
if (sb.ToString()[sb.Length - 1] != '\0')
{
sb.Append('\0');
}
}
// We request unmanaged permission to execute the below.
new SecurityPermission(SecurityPermissionFlag.UnmanagedCode).Demand();
_DROPFILES df = new _DROPFILES();
int dwSize = Marshal.SizeOf(df);
Int16 wideChar = 0;
int dwChar = Marshal.SizeOf(wideChar);
int structSize = dwSize + ((sb.Length + 1) * dwChar);
IntPtr ptr = Marshal.AllocHGlobal(structSize);
df.pFiles = dwSize;
df.fWide = 1;
IntPtr data = IntPtr.Zero;
try
{
data = UnsafeNativeMethods.GlobalLock(ptr);
Marshal.StructureToPtr(df, data, false);
IntPtr strData = new IntPtr((long)data + dwSize);
DragDropHelper.CopyStringToHGlobal(sb.ToString(), strData, structSize);
}
finally
{
if (data != IntPtr.Zero)
UnsafeNativeMethods.GlobalUnLock(data);
}
return ptr;
}
DataObject PackageSelectionDataObject(bool cutHighlightItems){
CleanupSelectionDataObject(false, false, false);
IVsUIHierarchyWindow w = this.projectMgr.GetIVsUIHierarchyWindow(VsConstants.Guid_SolutionExplorer);
IVsSolution solution = this.GetService(typeof(IVsSolution)) as IVsSolution;
IVsMonitorSelection ms = this.GetService(typeof(IVsMonitorSelection)) as IVsMonitorSelection;
IntPtr psel;
IVsMultiItemSelect itemSelect;
IntPtr psc;
uint vsitemid;
StringBuilder sb = new StringBuilder();
ms.GetCurrentSelection(out psel, out vsitemid, out itemSelect, out psc);
IVsHierarchy sel = (IVsHierarchy)Marshal.GetTypedObjectForIUnknown(psel, typeof(IVsHierarchy));
ISelectionContainer sc = (ISelectionContainer)Marshal.GetTypedObjectForIUnknown(psc, typeof(ISelectionContainer));
const uint GSI_fOmitHierPtrs = 0x00000001;
if ((sel != (IVsHierarchy)this) || (vsitemid == VsConstants.VSITEMID_ROOT) || (vsitemid == VsConstants.VSITEMID_NIL))
throw new InvalidOperationException();
if ((vsitemid == VsConstants.VSITEMID_SELECTION) && (itemSelect != null)){
int singleHierarchy;
uint pcItems;
itemSelect.GetSelectionInfo(out pcItems, out singleHierarchy);
if (singleHierarchy != 0) // "!BOOL" == "!= 0" ?
throw new InvalidOperationException();
this.itemsDragged = new ArrayList();
VSITEMSELECTION[] items = new VSITEMSELECTION[pcItems];
itemSelect.GetSelectedItems(GSI_fOmitHierPtrs, pcItems, items);
for (uint i = 0; i < pcItems; i++){
if (items[i].itemid == VsConstants.VSITEMID_ROOT){
this.itemsDragged.Clear();// abort
break;
}
this.itemsDragged.Add(items[i].pHier);
string projref;
solution.GetProjrefOfItem((IVsHierarchy)this, items[i].itemid, out projref);
if ((projref == null) || (projref.Length == 0)){
this.itemsDragged.Clear(); // abort
break;
}
sb.Append(projref);
sb.Append('\0'); // separated by nulls.
}
} else if (vsitemid != VsConstants.VSITEMID_ROOT){
this.itemsDragged = new ArrayList();
this.itemsDragged.Add(this.projectMgr.NodeFromItemId(vsitemid));
string projref;
solution.GetProjrefOfItem((IVsHierarchy)this, vsitemid, out projref);
sb.Append(projref);
}
if (sb.ToString() == "" || this.itemsDragged.Count == 0)
return null;
sb.Append('\0'); // double null at end.
_DROPFILES df = new _DROPFILES();
int dwSize = Marshal.SizeOf(df);
Int16 wideChar = 0;
int dwChar = Marshal.SizeOf(wideChar);
IntPtr ptr = Marshal.AllocHGlobal(dwSize + ((sb.Length + 1) * dwChar));
df.pFiles = dwSize;
df.fWide = 1;
IntPtr data = DataObject.GlobalLock(ptr);
Marshal.StructureToPtr(df, data, false);
IntPtr strData = new IntPtr((long)data + dwSize);
DataObject.CopyStringToHGlobal(sb.ToString(), strData);
DataObject.GlobalUnLock(data);
DataObject dobj = new DataObject();
FORMATETC fmt = DragDropHelper.CreateFormatEtc();
dobj.SetData(fmt, ptr);
if (cutHighlightItems){
bool first = true;
foreach (HierarchyNode node in this.itemsDragged){
w.ExpandItem((IVsUIHierarchy)this.projectMgr, node.hierarchyId, first ? EXPANDFLAGS.EXPF_CutHighlightItem : EXPANDFLAGS.EXPF_AddCutHighlightItem);
first = false;
}
}
return dobj;
}
