[NTOS:PS] Use KD routine to safely read memory from thread stack
[reactos.git] / dll / shellext / zipfldr / CSendToZip.cpp
1 /*
2 * PROJECT: ReactOS Zip Shell Extension
3 * LICENSE: GPL-2.0+ (https://spdx.org/licenses/GPL-2.0+)
4 * PURPOSE: SendTo handler
5 * COPYRIGHT: Copyright 2019 Mark Jansen (mark.jansen@reactos.org)
6 * Copyright 2019 Katayama Hirofumi MZ (katayama.hirofumi.mz@gmail.com)
7 */
8
9 #include "precomp.h"
10
11 STDMETHODIMP
12 CSendToZip::DragEnter(IDataObject *pDataObj, DWORD grfKeyState, POINTL pt,
13 DWORD *pdwEffect)
14 {
15 m_pDataObject = pDataObj;
16
17 FORMATETC etc = { CF_HDROP, NULL, DVASPECT_CONTENT, -1, TYMED_HGLOBAL };
18 m_fCanDragDrop = SUCCEEDED(pDataObj->QueryGetData(&etc));
19
20 if (m_fCanDragDrop)
21 *pdwEffect &= DROPEFFECT_COPY;
22 else
23 *pdwEffect = DROPEFFECT_NONE;
24
25 return S_OK;
26 }
27
28 STDMETHODIMP CSendToZip::DragOver(DWORD grfKeyState, POINTL pt, DWORD *pdwEffect)
29 {
30 if (m_fCanDragDrop)
31 *pdwEffect &= DROPEFFECT_COPY;
32 else
33 *pdwEffect = DROPEFFECT_NONE;
34
35 return S_OK;
36 }
37
38 STDMETHODIMP CSendToZip::DragLeave()
39 {
40 m_fCanDragDrop = FALSE;
41 m_pDataObject.Release();
42 return S_OK;
43 }
44
45 STDMETHODIMP
46 CSendToZip::Drop(IDataObject *pDataObj, DWORD grfKeyState, POINTL pt,
47 DWORD *pdwEffect)
48 {
49 m_pDataObject = pDataObj;
50
51 if (!pDataObj || !m_fCanDragDrop)
52 {
53 DPRINT1("Drop failed: %d %d\n", !pDataObj, !m_fCanDragDrop);
54 *pdwEffect = 0;
55 DragLeave();
56 return E_FAIL;
57 }
58
59 STGMEDIUM stg;
60 FORMATETC etc = { CF_HDROP, NULL, DVASPECT_CONTENT, -1, TYMED_HGLOBAL };
61 HRESULT hr = pDataObj->GetData(&etc, &stg);
62 if (FAILED_UNEXPECTEDLY(hr))
63 {
64 *pdwEffect = 0;
65 DragLeave();
66 return E_FAIL;
67 }
68
69 HDROP hDrop = reinterpret_cast<HDROP>(stg.hGlobal);
70 UINT cItems = ::DragQueryFileW(hDrop, -1, NULL, 0);
71
72 CZipCreator *pCreator = CZipCreator::DoCreate();
73
74 for (UINT iItem = 0; iItem < cItems; ++iItem)
75 {
76 WCHAR szPath[MAX_PATH];
77 DragQueryFileW(hDrop, iItem, szPath, _countof(szPath));
78
79 pCreator->DoAddItem(szPath);
80 }
81
82 ::ReleaseStgMedium(&stg);
83
84 CZipCreator::runThread(pCreator); // pCreator is deleted in runThread
85
86 DragLeave();
87 return hr;
88 }