long MsHtmHstInterop.IDropTarget.DragOver(
[In] int grfKeyState,
[In] POINTL pt,
[In, Out] ref uint pdwEffect)
{
uint effect = 0;
if (m_pPreDropTarget != null)
{
m_pPreDropTarget.DragOver(grfKeyState, pt, ref effect);
}
pdwEffect = effect | 1;
return(S_OK);
}
long MsHtmHstInterop.IDropTarget.DragEnter(
[In] System.Runtime.InteropServices.ComTypes.IDataObject pDataObject,
[In] int grfKeyState,
[In] POINTL pt,
[In, Out] ref uint pdwEffect
)
{
uint effect = 0;
if (m_pPreDropTarget != null)
{
m_pPreDropTarget.DragEnter(pDataObject, grfKeyState, pt, ref effect);
}
pdwEffect = effect | 1;
return(S_OK);
}
public static POINTL operator -(POINTL p1, POINTL p2)
{
POINTL ret = new POINTL();
ret.x = p1.x - p2.x;
ret.y = p1.y - p2.y;
return ret;
}
long MsHtmHstInterop.IDropTarget.Drop(
[In] System.Runtime.InteropServices.ComTypes.IDataObject pDataObject,
[In] int grfKeyState,
[In] POINTL pt,
[In, Out] ref uint pdwEffect
)
{
System.Runtime.InteropServices.ComTypes.IEnumFORMATETC pEnum = (System.Runtime.InteropServices.ComTypes.IEnumFORMATETC)pDataObject.EnumFormatEtc(DATADIR.DATADIR_GET);
pEnum.Reset();
FORMATETC[] etcs = new FORMATETC[1];
int[] pceltFetched = new int[1];
while (pEnum.Next(1, etcs, pceltFetched) == 0)
{
if (etcs[0].cfFormat == 15)
{
STGMEDIUM data;
pDataObject.GetData(ref etcs[0], out data);
if (data.tymed == TYMED.TYMED_HGLOBAL)
{
string[] items = null;
IntPtr pData = GlobalLock(data.unionmember);
try
{
int size = (int)GlobalSize(data.unionmember);
int len = 0;
unsafe
{
Int32 *pOffset = (Int32 *)pData;
Int16 *pFileNames = (Int16 *)((Int32)pData + (*pOffset));
size -= *pOffset;
while (true)
{
if (len >= size || (pFileNames[len] == 0 && pFileNames[len + 1] == 0))
{
break;
}
len += 2;
}
String s = Marshal.PtrToStringUni((IntPtr)pFileNames, len);
items = s.Split(new char[] { (char)0 });
}
}
finally
{
GlobalUnlock(data.unionmember);
}
StringBuilder files = new StringBuilder();
foreach (string file in items)
{
if (System.IO.File.Exists(file))
{
if (files.Length > 0)
{
files.Append('\0');
}
files.Append(file);
}
}
if (files.Length > 0)
{
_window.IWindow.OnDropFiles.Call(files.ToString());
return(S_OK);
}
}
}
else if (etcs[0].cfFormat == 13)
{
STGMEDIUM data;
pDataObject.GetData(ref etcs[0], out data);
String text = null;
if (data.tymed == TYMED.TYMED_HGLOBAL)
{
IntPtr hData = GlobalLock(data.unionmember);
try
{
int size = (int)GlobalSize(data.unionmember);
text = Marshal.PtrToStringUni(hData);
}
finally
{
GlobalUnlock(data.unionmember);
}
}
Hashtable data_json = null;
try
{
data_json = Utility.ParseJson(text) as Hashtable;
}
catch
{
data_json = null;
}
if (data_json != null && data_json.ContainsKey("__Type") && data_json.ContainsKey("__Data"))
{
string drop_type = data_json["__Type"].ToString();
string drop_data = data_json["__Data"].ToString();
_window.IWindow.OnDrop.CallAll(drop_type, drop_data);
return(S_OK);
}
}
}
if (m_pPreDropTarget != null)
{
m_pPreDropTarget.Drop(pDataObject, grfKeyState, pt, ref pdwEffect);
}
return(S_OK);
}
public void Drop(Microsoft.VisualStudio.OLE.Interop.IDataObject pDataObj, uint grfKeyState, POINTL pt, ref uint pdwEffect)
{
//throw new NotImplementedException();
}
public void DragOver(uint grfKeyState, POINTL pt, ref uint pdwEffect)
{
//throw new NotImplementedException();
}
public bool OnDrop(IntPtr pDataObject, uint grfKeyState, POINTL pt, IntPtr pdwEffect)
{
ltf.RunJavaScript("$(\"#div1\").text('动作：Drop')");
return(true);
}
public bool OnDragOver(uint grfKeyState, POINTL pt, IntPtr pdwEffect)
{
ltf.RunJavaScript("$(\"#div1\").text('动作：DragOver')");
return(true);
}
public HRESULT Drop(IDataObject *pDataObj, [NativeTypeName("DWORD")] uint grfKeyState, POINTL pt, [NativeTypeName("DWORD *")] uint *pdwEffect)
{
return(((delegate * unmanaged <IDropTarget *, IDataObject *, uint, POINTL, uint *, int>)(lpVtbl[6]))((IDropTarget *)Unsafe.AsPointer(ref this), pDataObj, grfKeyState, pt, pdwEffect));
}
