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reactos/dll/win32/shdocvw/CNSCBand.cpp

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/*
* PROJECT: ReactOS shdocvw
* LICENSE: LGPL-2.1-or-later (https://spdx.org/licenses/LGPL-2.1-or-later)
* PURPOSE: NameSpace Control Band
* COPYRIGHT: Copyright 2024 Katayama Hirofumi MZ <katayama.hirofumi.mz@gmail.com>
*/
#include "objects.h"
#include <shlobj.h>
#include <commoncontrols.h>
#include <undocshell.h>
#define TIMER_ID_REFRESH 9999
#include <wine/debug.h>
WINE_DEFAULT_DEBUG_CHANNEL(shdocvw);
HRESULT
SHDOCVW_GetPathOfShortcut(
_In_opt_ HWND hWnd,
_In_ LPCWSTR pszLnkFile,
_Out_ LPWSTR pszPath)
{
*pszPath = UNICODE_NULL;
CComPtr<IShellLink> pShellLink;
HRESULT hr = CoCreateInstance(CLSID_ShellLink, NULL, CLSCTX_INPROC_SERVER,
IID_PPV_ARG(IShellLink, &pShellLink));
if (FAILED_UNEXPECTEDLY(hr))
return hr;
CComPtr<IPersistFile> pPersistFile;
hr = pShellLink->QueryInterface(IID_PPV_ARG(IPersistFile, &pPersistFile));
if (FAILED_UNEXPECTEDLY(hr))
return hr;
hr = pPersistFile->Load(pszLnkFile, STGM_READ);
if (FAILED_UNEXPECTEDLY(hr))
return hr;
WIN32_FIND_DATA find;
hr = pShellLink->GetPath(pszPath, MAX_PATH, &find, 0);
if (FAILED_UNEXPECTEDLY(hr))
return hr;
return S_OK;
}
HRESULT
SHDOCVW_CreateShortcut(
_In_ LPCWSTR pszLnkFileName,
_In_ PCIDLIST_ABSOLUTE pidlTarget,
_In_opt_ LPCWSTR pszDescription)
{
HRESULT hr;
CComPtr<IShellLink> psl;
hr = CoCreateInstance(CLSID_ShellLink, NULL, CLSCTX_INPROC_SERVER,
IID_PPV_ARG(IShellLink, &psl));
if (FAILED_UNEXPECTEDLY(hr))
return hr;
psl->SetIDList(pidlTarget);
if (pszDescription)
psl->SetDescription(pszDescription);
CComPtr<IPersistFile> ppf;
hr = psl->QueryInterface(IID_PPV_ARG(IPersistFile, &ppf));
if (FAILED_UNEXPECTEDLY(hr))
return hr;
return ppf->Save(pszLnkFileName, TRUE);
}
CNSCBand::CNSCBand()
{
SHDOCVW_LockModule();
INITCOMMONCONTROLSEX iccx = { sizeof(iccx), ICC_TREEVIEW_CLASSES | ICC_BAR_CLASSES };
::InitCommonControlsEx(&iccx);
}
CNSCBand::~CNSCBand()
{
if (m_hToolbarImageList)
{
ImageList_Destroy(m_hToolbarImageList);
m_hToolbarImageList = NULL;
}
SHDOCVW_UnlockModule();
}
VOID CNSCBand::OnFinalMessage(HWND)
{
// The message loop is finished, now we can safely destruct!
static_cast<IDeskBand *>(this)->Release();
}
// *** helper methods ***
CNSCBand::CItemData* CNSCBand::GetItemData(_In_ HTREEITEM hItem)
{
if (hItem == TVI_ROOT)
return NULL;
TVITEMW tvItem = { TVIF_PARAM, hItem };
if (!TreeView_GetItem(m_hwndTreeView, &tvItem))
return NULL;
return reinterpret_cast<CItemData*>(tvItem.lParam);
}
static HRESULT
SHDOCVW_GetCurrentLocationFromView(_In_ IShellView& View, _In_ PIDLIST_ABSOLUTE *ppidl)
{
CComPtr<IFolderView> pfv;
CComPtr<IShellFolder> psf;
HRESULT hr = View.QueryInterface(IID_PPV_ARG(IFolderView, &pfv));
if (SUCCEEDED(hr) && SUCCEEDED(hr = pfv->GetFolder(IID_PPV_ARG(IShellFolder, &psf))))
hr = SHELL_GetIDListFromObject(psf, ppidl);
return hr;
}
HRESULT CNSCBand::_GetCurrentLocation(_Out_ PIDLIST_ABSOLUTE *ppidl)
{
*ppidl = NULL;
CComPtr<IShellBrowser> psb;
HRESULT hr = IUnknown_QueryService(m_pSite, SID_STopLevelBrowser, IID_PPV_ARG(IShellBrowser, &psb));
if (FAILED_UNEXPECTEDLY(hr))
return hr;
CComPtr<IBrowserService> pbs;
if (SUCCEEDED(hr = psb->QueryInterface(IID_PPV_ARG(IBrowserService, &pbs))))
if (SUCCEEDED(hr = pbs->GetPidl(ppidl)) && *ppidl)
return hr;
CComPtr<IShellView> psv;
if (!FAILED_UNEXPECTEDLY(hr = psb->QueryActiveShellView(&psv)))
if (SUCCEEDED(hr = psv.p ? SHDOCVW_GetCurrentLocationFromView(*psv.p, ppidl) : E_FAIL))
return hr;
return hr;
}
HRESULT CNSCBand::_IsCurrentLocation(_In_ PCIDLIST_ABSOLUTE pidl)
{
if (!pidl)
return E_INVALIDARG;
HRESULT hr = E_FAIL;
PIDLIST_ABSOLUTE location = NULL;
hr = _GetCurrentLocation(&location);
if (SUCCEEDED(hr))
hr = SHELL_IsEqualAbsoluteID(location, pidl) ? S_OK : S_FALSE;
ILFree(location);
return hr;
}
HRESULT CNSCBand::_ExecuteCommand(_In_ CComPtr<IContextMenu>& menu, _In_ UINT nCmd)
{
CComPtr<IOleWindow> pBrowserOleWnd;
HRESULT hr = IUnknown_QueryService(m_pSite, SID_SShellBrowser,
IID_PPV_ARG(IOleWindow, &pBrowserOleWnd));
if (FAILED_UNEXPECTEDLY(hr))
return hr;
HWND browserWnd;
hr = pBrowserOleWnd->GetWindow(&browserWnd);
if (FAILED_UNEXPECTEDLY(hr))
return hr;
CMINVOKECOMMANDINFO cmi = { sizeof(cmi) };
cmi.lpVerb = MAKEINTRESOURCEA(nCmd);
cmi.hwnd = browserWnd;
cmi.nShow = SW_SHOW;
if (::GetKeyState(VK_SHIFT) < 0)
cmi.fMask |= CMIC_MASK_SHIFT_DOWN;
if (::GetKeyState(VK_CONTROL) < 0)
cmi.fMask |= CMIC_MASK_CONTROL_DOWN;
return menu->InvokeCommand(&cmi);
}
void CNSCBand::_RegisterChangeNotify()
{
#define TARGET_EVENTS ( \
SHCNE_DRIVEADD | SHCNE_MKDIR | SHCNE_CREATE | SHCNE_DRIVEREMOVED | SHCNE_RMDIR | \
SHCNE_DELETE | SHCNE_RENAMEFOLDER | SHCNE_RENAMEITEM | SHCNE_UPDATEDIR | \
SHCNE_UPDATEITEM | SHCNE_ASSOCCHANGED \
)
// Register shell notification
SHChangeNotifyEntry shcne = { m_pidlRoot, TRUE };
m_shellRegID = SHChangeNotifyRegister(m_hWnd,
SHCNRF_NewDelivery | SHCNRF_ShellLevel,
TARGET_EVENTS,
WM_USER_SHELLEVENT,
1, &shcne);
if (!m_shellRegID)
{
ERR("Something went wrong, error %08x\n", GetLastError());
}
}
void CNSCBand::_UnregisterChangeNotify()
{
SHChangeNotifyDeregister(m_shellRegID);
m_shellRegID = 0;
}
void CNSCBand::_DestroyTreeView()
{
TRACE("Cleaning up treeview...\n");
/* Remove all items of the treeview */
::RevokeDragDrop(m_hwndTreeView);
TreeView_DeleteAllItems(m_hwndTreeView);
m_hwndTreeView.DestroyWindow();
m_pDesktop = NULL;
m_hRoot = NULL;
TRACE("Cleanup ok\n");
}
void CNSCBand::_DestroyToolbar()
{
m_hwndToolbar.DestroyWindow();
}
HRESULT CNSCBand::_CreateTreeView(HWND hwndParent)
{
RefreshFlags(&m_dwTVStyle, &m_dwTVExStyle, &m_dwEnumFlags);
HWND hwndTV = ::CreateWindowExW(m_dwTVExStyle, WC_TREEVIEWW, NULL, m_dwTVStyle, 0, 0, 0, 0,
hwndParent, (HMENU)UlongToHandle(IDW_TREEVIEW), instance, NULL);
ATLASSERT(hwndTV);
if (!hwndTV)
return E_FAIL;
m_hwndTreeView.Attach(hwndTV);
::RegisterDragDrop(m_hwndTreeView, dynamic_cast<IDropTarget*>(this));
// Init the treeview here
HRESULT hr = SHGetDesktopFolder(&m_pDesktop);
if (FAILED_UNEXPECTEDLY(hr))
return hr;
m_pidlRoot.Free();
hr = SHGetFolderLocation(m_hWnd, _GetRootCsidl(), NULL, 0, &m_pidlRoot);
if (FAILED_UNEXPECTEDLY(hr))
return hr;
// Create image list and set
IImageList *piml;
hr = SHGetImageList(SHIL_SMALL, IID_PPV_ARG(IImageList, &piml));
if (FAILED_UNEXPECTEDLY(hr))
return hr;
TreeView_SetImageList(m_hwndTreeView, (HIMAGELIST)piml, TVSIL_NORMAL);
return S_OK;
}
BOOL
CNSCBand::_IsTreeItemInEnum(
_In_ HTREEITEM hItem,
_In_ IEnumIDList *pEnum)
{
CItemData* pItemData = GetItemData(hItem);
if (!pItemData)
return FALSE;
pEnum->Reset();
CComHeapPtr<ITEMIDLIST_RELATIVE> pidlTemp;
while (pEnum->Next(1, &pidlTemp, NULL) == S_OK)
{
if (ILIsEqual(pidlTemp, pItemData->relativePidl))
return TRUE;
pidlTemp.Free();
}
return FALSE;
}
BOOL
CNSCBand::_TreeItemHasThisChild(
_In_ HTREEITEM hItem,
_In_ PCITEMID_CHILD pidlChild)
{
for (hItem = TreeView_GetChild(m_hwndTreeView, hItem); hItem;
hItem = TreeView_GetNextSibling(m_hwndTreeView, hItem))
{
CItemData* pItemData = GetItemData(hItem);
if (ILIsEqual(pItemData->relativePidl, pidlChild))
return TRUE;
}
return FALSE;
}
HRESULT
CNSCBand::_GetItemEnum(
_Out_ CComPtr<IEnumIDList>& pEnum,
_In_ HTREEITEM hItem,
_Out_opt_ IShellFolder **ppFolder)
{
CComPtr<IShellFolder> psfDesktop;
HRESULT hr = SHGetDesktopFolder(&psfDesktop);
if (FAILED_UNEXPECTEDLY(hr))
return hr;
CComPtr<IShellFolder> pFolder;
if (!ppFolder)
ppFolder = &pFolder;
if (hItem == m_hRoot && hItem)
{
*ppFolder = psfDesktop;
(*ppFolder)->AddRef();
}
else
{
CItemData* pItemData = GetItemData(hItem);
if (!pItemData && hItem == TVI_ROOT && !_WantsRootItem())
hr = psfDesktop->BindToObject(m_pidlRoot, NULL, IID_PPV_ARG(IShellFolder, ppFolder));
else
hr = psfDesktop->BindToObject(pItemData->absolutePidl, NULL, IID_PPV_ARG(IShellFolder, ppFolder));
if (FAILED_UNEXPECTEDLY(hr))
return hr;
}
return (*ppFolder)->EnumObjects(NULL, _GetEnumFlags(), &pEnum);
}
BOOL CNSCBand::_ItemHasAnyChild(_In_ HTREEITEM hItem)
{
CComPtr<IEnumIDList> pEnum;
HRESULT hr = _GetItemEnum(pEnum, hItem);
if (FAILED(hr))
return FALSE;
CComHeapPtr<ITEMIDLIST_RELATIVE> pidlTemp;
hr = pEnum->Next(1, &pidlTemp, NULL);
return SUCCEEDED(hr);
}
void CNSCBand::_RefreshRecurse(_In_ HTREEITEM hTarget)
{
CComPtr<IEnumIDList> pEnum;
HRESULT hrEnum = _GetItemEnum(pEnum, hTarget);
// Delete zombie items
HTREEITEM hItem, hNextItem;
for (hItem = TreeView_GetChild(m_hwndTreeView, hTarget); hItem; hItem = hNextItem)
{
hNextItem = TreeView_GetNextSibling(m_hwndTreeView, hItem);
if (SUCCEEDED(hrEnum) && !_IsTreeItemInEnum(hItem, pEnum))
TreeView_DeleteItem(m_hwndTreeView, hItem);
}
pEnum = NULL;
hrEnum = _GetItemEnum(pEnum, hTarget);
CItemData* pItemData = ((hTarget == TVI_ROOT) ? NULL : GetItemData(hTarget));
// Insert new items and update items
if (SUCCEEDED(hrEnum))
{
CComHeapPtr<ITEMIDLIST_RELATIVE> pidlTemp;
while (pEnum->Next(1, &pidlTemp, NULL) == S_OK)
{
if (!_TreeItemHasThisChild(hTarget, pidlTemp))
{
if (pItemData)
{
CComHeapPtr<ITEMIDLIST> pidlAbsolute(ILCombine(pItemData->absolutePidl, pidlTemp));
_InsertItem(hTarget, pidlAbsolute, pidlTemp, TRUE);
}
else
{
CComHeapPtr<ITEMIDLIST> pidlAbsolute(ILCombine(m_pidlRoot, pidlTemp));
_InsertItem(hTarget, pidlAbsolute, pidlTemp, TRUE);
}
}
pidlTemp.Free();
}
}
// Update children and recurse
for (hItem = TreeView_GetChild(m_hwndTreeView, hTarget); hItem; hItem = hNextItem)
{
hNextItem = TreeView_GetNextSibling(m_hwndTreeView, hItem);
TV_ITEMW item = { TVIF_HANDLE | TVIF_CHILDREN };
item.hItem = hItem;
item.cChildren = _ItemHasAnyChild(hItem);
TreeView_SetItem(m_hwndTreeView, &item);
if (TreeView_GetItemState(m_hwndTreeView, hItem, TVIS_EXPANDEDONCE) & TVIS_EXPANDEDONCE)
_RefreshRecurse(hItem);
}
}
void CNSCBand::_Refresh()
{
m_hwndTreeView.SendMessage(WM_SETREDRAW, FALSE, 0);
_RefreshRecurse(_WantsRootItem() ? m_hRoot : TVI_ROOT);
m_hwndTreeView.SendMessage(WM_SETREDRAW, TRUE, 0);
}
LRESULT CNSCBand::OnTimer(UINT uMsg, WPARAM wParam, LPARAM lParam, BOOL &bHandled)
{
KillTimer(wParam);
if (wParam == TIMER_ID_REFRESH)
_Refresh();
return 0;
}
void
CNSCBand::OnChangeNotify(
_In_opt_ LPCITEMIDLIST pidl0,
_In_opt_ LPCITEMIDLIST pidl1,
_In_ LONG lEvent)
{
switch (lEvent)
{
case SHCNE_DRIVEADD:
case SHCNE_MKDIR:
case SHCNE_CREATE:
case SHCNE_DRIVEREMOVED:
case SHCNE_RMDIR:
case SHCNE_DELETE:
case SHCNE_RENAMEFOLDER:
case SHCNE_RENAMEITEM:
case SHCNE_UPDATEDIR:
case SHCNE_UPDATEITEM:
case SHCNE_ASSOCCHANGED:
{
KillTimer(TIMER_ID_REFRESH);
SetTimer(TIMER_ID_REFRESH, 500, NULL);
break;
}
default:
{
TRACE("lEvent: 0x%08lX\n", lEvent);
break;
}
}
}
HTREEITEM
CNSCBand::_InsertItem(
_In_opt_ HTREEITEM hParent,
_Inout_ IShellFolder *psfParent,
_In_ LPCITEMIDLIST pElt,
_In_ LPCITEMIDLIST pEltRelative,
_In_ BOOL bSort)
{
/* Get the attributes of the node */
SFGAOF attrs = SFGAO_STREAM | SFGAO_HASSUBFOLDER;
HRESULT hr = psfParent->GetAttributesOf(1, &pEltRelative, &attrs);
if (FAILED_UNEXPECTEDLY(hr))
return NULL;
/* Get the name of the node */
WCHAR wszDisplayName[MAX_PATH];
STRRET strret;
hr = psfParent->GetDisplayNameOf(pEltRelative, SHGDN_INFOLDER, &strret);
if (FAILED_UNEXPECTEDLY(hr))
return NULL;
hr = StrRetToBufW(&strret, pEltRelative, wszDisplayName, MAX_PATH);
if (FAILED_UNEXPECTEDLY(hr))
return NULL;
/* Get the icon of the node */
INT iIcon = SHMapPIDLToSystemImageListIndex(psfParent, pEltRelative, NULL);
CItemData* pChildInfo = new CItemData;
if (!pChildInfo)
{
ERR("Failed to allocate CItemData\n");
return NULL;
}
pChildInfo->absolutePidl.Attach(ILClone(pElt));
pChildInfo->relativePidl.Attach(ILClone(pEltRelative));
// Set up our treeview template
TV_INSERTSTRUCT tvInsert = { hParent, TVI_LAST };
tvInsert.item.mask = TVIF_PARAM | TVIF_TEXT | TVIF_IMAGE | TVIF_SELECTEDIMAGE | TVIF_CHILDREN;
tvInsert.item.cchTextMax = MAX_PATH;
tvInsert.item.pszText = wszDisplayName;
tvInsert.item.iImage = tvInsert.item.iSelectedImage = iIcon;
tvInsert.item.lParam = (LPARAM)pChildInfo;
if (!(attrs & SFGAO_STREAM) && (attrs & SFGAO_HASSUBFOLDER))
tvInsert.item.cChildren = 1;
HTREEITEM htiCreated = TreeView_InsertItem(m_hwndTreeView, &tvInsert);
if (bSort)
_SortItems(hParent);
return htiCreated;
}
/* This is the slow version of the above method */
HTREEITEM
CNSCBand::_InsertItem(
_In_opt_ HTREEITEM hParent,
_In_ LPCITEMIDLIST pElt,
_In_ LPCITEMIDLIST pEltRelative,
_In_ BOOL bSort)
{
CComPtr<IShellFolder> psfFolder;
HRESULT hr = SHBindToParent(pElt, IID_PPV_ARG(IShellFolder, &psfFolder), NULL);
if (FAILED_UNEXPECTEDLY(hr))
return NULL;
return _InsertItem(hParent, psfFolder, pElt, pEltRelative, bSort);
}
BOOL CNSCBand::_InsertSubitems(HTREEITEM hItem, LPCITEMIDLIST entry)
{
ULONG fetched = 1, uItemCount = 0;
CComPtr<IEnumIDList> pEnum;
CComPtr<IShellFolder> pFolder;
HRESULT hr = _GetItemEnum(pEnum, hItem, &pFolder);
if (FAILED_UNEXPECTEDLY(hr))
return FALSE;
/* Don't redraw while we add stuff into the tree */
m_hwndTreeView.SendMessage(WM_SETREDRAW, FALSE, 0);
LPITEMIDLIST pidlSub;
while (SUCCEEDED(pEnum->Next(1, &pidlSub, &fetched)) && pidlSub && fetched)
{
LPITEMIDLIST pidlSubComplete;
pidlSubComplete = ILCombine(entry, pidlSub);
if (_InsertItem(hItem, pFolder, pidlSubComplete, pidlSub, FALSE))
++uItemCount;
ILFree(pidlSubComplete);
ILFree(pidlSub);
}
/* Let's do sorting */
_SortItems(hItem);
/* Now we can redraw */
m_hwndTreeView.SendMessage(WM_SETREDRAW, TRUE, 0);
return (uItemCount > 0);
}
// *** message handlers ***
LRESULT CNSCBand::OnCreate(UINT uMsg, WPARAM wParam, LPARAM lParam, BOOL& bHandled)
{
if (FAILED_UNEXPECTEDLY(_CreateToolbar(m_hWnd)))
return -1;
if (FAILED_UNEXPECTEDLY(_CreateTreeView(m_hWnd)))
return -1;
return 0;
}
LRESULT CNSCBand::OnDestroy(UINT uMsg, WPARAM wParam, LPARAM lParam, BOOL& bHandled)
{
_DestroyTreeView();
_DestroyToolbar();
_UnregisterChangeNotify();
return 0;
}
LRESULT CNSCBand::OnSize(UINT uMsg, WPARAM wParam, LPARAM lParam, BOOL& bHandled)
{
if (!m_hwndTreeView)
return 0;
RECT rc;
GetClientRect(&rc);
LONG cx = rc.right, cy = rc.bottom;
RECT rcTB;
LONG cyTB = 0;
if (m_hwndToolbar)
{
m_hwndToolbar.SendMessage(TB_AUTOSIZE, 0, 0);
m_hwndToolbar.GetWindowRect(&rcTB);
cyTB = rcTB.bottom - rcTB.top;
}
m_hwndTreeView.MoveWindow(0, cyTB, cx, cy - cyTB);
return 0;
}
LRESULT CNSCBand::OnSetFocus(UINT uMsg, WPARAM wParam, LPARAM lParam, BOOL &bHandled)
{
m_bFocused = TRUE;
IUnknown_OnFocusChangeIS(m_pSite, reinterpret_cast<IUnknown*>(this), TRUE);
bHandled = FALSE;
return 0;
}
LRESULT CNSCBand::OnKillFocus(UINT uMsg, WPARAM wParam, LPARAM lParam, BOOL &bHandled)
{
IUnknown_OnFocusChangeIS(m_pSite, reinterpret_cast<IUnknown*>(this), FALSE);
m_bFocused = FALSE;
return 0;
}
HRESULT CNSCBand::_AddFavorite()
{
CComHeapPtr<ITEMIDLIST> pidlCurrent;
_GetCurrentLocation(&pidlCurrent);
WCHAR szCurDir[MAX_PATH];
if (!ILGetDisplayName(pidlCurrent, szCurDir))
{
FIXME("\n");
return E_FAIL;
}
WCHAR szPath[MAX_PATH], szSuffix[32];
SHGetSpecialFolderPathW(m_hWnd, szPath, CSIDL_FAVORITES, TRUE);
PathAppendW(szPath, PathFindFileNameW(szCurDir));
const INT ich = lstrlenW(szPath);
for (INT iTry = 2; iTry <= 9999; ++iTry)
{
PathAddExtensionW(szPath, L".lnk");
if (!PathFileExistsW(szPath))
break;
szPath[ich] = UNICODE_NULL;
wsprintfW(szSuffix, L" (%d)", iTry);
lstrcatW(szPath, szSuffix);
}
TRACE("%S, %S\n", szCurDir, szPath);
return SHDOCVW_CreateShortcut(szPath, pidlCurrent, NULL);
}
LRESULT CNSCBand::OnCommand(UINT uMsg, WPARAM wParam, LPARAM lParam, BOOL &bHandled)
{
switch (LOWORD(wParam))
{
case ID_ADD:
{
_AddFavorite();
break;
}
case ID_ORGANIZE:
{
SHELLEXECUTEINFOW sei = { sizeof(sei), SEE_MASK_INVOKEIDLIST };
sei.hwnd = m_hWnd;
sei.nShow = SW_SHOWNORMAL;
sei.lpIDList = m_pidlRoot;
::ShellExecuteExW(&sei);
break;
}
}
return 0;
}
BOOL CNSCBand::OnTreeItemExpanding(_In_ LPNMTREEVIEW pnmtv)
{
CItemData *pItemData;
if (pnmtv->action == TVE_COLLAPSE)
{
if (pnmtv->itemNew.hItem == m_hRoot)
{
// Prenvent root from collapsing
pnmtv->itemNew.mask |= TVIF_STATE;
pnmtv->itemNew.stateMask |= TVIS_EXPANDED;
pnmtv->itemNew.state &= ~TVIS_EXPANDED;
pnmtv->action = TVE_EXPAND;
return TRUE;
}
}
if (pnmtv->action == TVE_EXPAND)
{
// Grab our directory PIDL
pItemData = GetItemData(pnmtv->itemNew.hItem);
// We have it, let's try
if (pItemData && !pItemData->expanded)
{
if (_InsertSubitems(pnmtv->itemNew.hItem, pItemData->absolutePidl))
{
pItemData->expanded = TRUE;
}
else
{
// remove subitem "+" since we failed to add subitems
TVITEMW tvItem = { TVIF_CHILDREN, pnmtv->itemNew.hItem };
tvItem.cChildren = 0;
TreeView_SetItem(m_hwndTreeView, &tvItem);
}
}
}
return FALSE;
}
BOOL CNSCBand::OnTreeItemDeleted(_In_ LPNMTREEVIEW pnmtv)
{
// Navigate to parent when deleting selected item
HTREEITEM hItem = pnmtv->itemOld.hItem;
HTREEITEM hParent = TreeView_GetParent(m_hwndTreeView, hItem);
if (hParent && TreeView_GetSelection(m_hwndTreeView) == hItem)
TreeView_SelectItem(m_hwndTreeView, hParent);
/* Destroy memory associated to our node */
CItemData* pItemData = GetItemData(hItem);
if (!pItemData)
return FALSE;
delete pItemData;
return TRUE;
}
void CNSCBand::_OnSelectionChanged(_In_ LPNMTREEVIEW pnmtv)
{
HTREEITEM hItem = pnmtv->itemNew.hItem;
if (!hItem)
return;
CItemData* pItemData = GetItemData(hItem);
if (pItemData)
OnSelectionChanged(pItemData->absolutePidl);
}
void CNSCBand::OnTreeItemDragging(_In_ LPNMTREEVIEW pnmtv, _In_ BOOL isRightClick)
{
CItemData* pItemData = GetItemData(pnmtv->itemNew.hItem);
if (!pItemData)
return;
HRESULT hr;
CComPtr<IShellFolder> pSrcFolder;
LPCITEMIDLIST pLast;
hr = SHBindToParent(pItemData->absolutePidl, IID_PPV_ARG(IShellFolder, &pSrcFolder), &pLast);
if (FAILED_UNEXPECTEDLY(hr))
return;
SFGAOF attrs = SFGAO_CANCOPY | SFGAO_CANMOVE | SFGAO_CANLINK;
pSrcFolder->GetAttributesOf(1, &pLast, &attrs);
DWORD dwEffect = 0;
if (attrs & SFGAO_CANCOPY)
dwEffect |= DROPEFFECT_COPY;
if (attrs & SFGAO_CANMOVE)
dwEffect |= DROPEFFECT_MOVE;
if (attrs & SFGAO_CANLINK)
dwEffect |= DROPEFFECT_LINK;
CComPtr<IDataObject> pObj;
hr = pSrcFolder->GetUIObjectOf(m_hWnd, 1, &pLast, IID_IDataObject, 0, (LPVOID*)&pObj);
if (FAILED_UNEXPECTEDLY(hr))
return;
DoDragDrop(pObj, this, dwEffect, &dwEffect);
}
LRESULT CNSCBand::OnBeginLabelEdit(_In_ LPNMTVDISPINFO dispInfo)
{
// TODO: put this in a function ? (mostly copypasta from CDefView)
DWORD dwAttr = SFGAO_CANRENAME;
CComPtr<IShellFolder> pParent;
LPCITEMIDLIST pChild;
HRESULT hr;
CItemData *info = GetItemData(dispInfo->item.hItem);
if (!info)
return FALSE;
hr = SHBindToParent(info->absolutePidl, IID_PPV_ARG(IShellFolder, &pParent), &pChild);
if (FAILED_UNEXPECTEDLY(hr))
return FALSE;
hr = pParent->GetAttributesOf(1, &pChild, &dwAttr);
if (SUCCEEDED(hr) && (dwAttr & SFGAO_CANRENAME))
{
m_isEditing = TRUE;
m_oldSelected = NULL;
return FALSE;
}
return TRUE;
}
HRESULT CNSCBand::_UpdateBrowser(LPCITEMIDLIST pidlGoto)
{
CComPtr<IShellBrowser> pBrowserService;
HRESULT hr = IUnknown_QueryService(m_pSite, SID_STopLevelBrowser,
IID_PPV_ARG(IShellBrowser, &pBrowserService));
if (FAILED_UNEXPECTEDLY(hr))
return hr;
hr = pBrowserService->BrowseObject(pidlGoto, SBSP_SAMEBROWSER | SBSP_ABSOLUTE);
if (FAILED_UNEXPECTEDLY(hr))
return hr;
return S_OK;
}
LRESULT CNSCBand::OnEndLabelEdit(_In_ LPNMTVDISPINFO dispInfo)
{
CItemData *info = GetItemData(dispInfo->item.hItem);
HRESULT hr;
m_isEditing = FALSE;
if (m_oldSelected)
{
++m_mtxBlockNavigate;
TreeView_SelectItem(m_hwndTreeView, m_oldSelected);
--m_mtxBlockNavigate;
}
if (!dispInfo->item.pszText)
return FALSE;
CComPtr<IShellFolder> pParent;
LPCITEMIDLIST pidlChild;
BOOL RenamedCurrent = _IsCurrentLocation(info->absolutePidl) == S_OK;
hr = SHBindToParent(info->absolutePidl, IID_PPV_ARG(IShellFolder, &pParent), &pidlChild);
if (FAILED_UNEXPECTEDLY(hr))
return FALSE;
CComHeapPtr<ITEMIDLIST> pidlNew;
hr = pParent->SetNameOf(m_hWnd, pidlChild, dispInfo->item.pszText, SHGDN_INFOLDER, &pidlNew);
if (SUCCEEDED(hr) && pidlNew)
{
CComPtr<IPersistFolder2> pPersist;
hr = pParent->QueryInterface(IID_PPV_ARG(IPersistFolder2, &pPersist));
if (FAILED_UNEXPECTEDLY(hr))
return FALSE;
CComHeapPtr<ITEMIDLIST> pidlParent;
hr = pPersist->GetCurFolder(&pidlParent);
if (FAILED_UNEXPECTEDLY(hr))
return FALSE;
CComHeapPtr<ITEMIDLIST> pidlNewAbs(ILCombine(pidlParent, pidlNew));
if (RenamedCurrent)
{
_UpdateBrowser(pidlNewAbs);
}
else
{
// Tell everyone if SetNameOf forgot, this causes IShellView to update itself when we rename a child
SHChangeNotify(SHCNE_RENAMEFOLDER, SHCNF_IDLIST, info->absolutePidl, pidlNewAbs);
}
return TRUE;
}
return FALSE;
}
LRESULT CNSCBand::OnNotify(UINT uMsg, WPARAM wParam, LPARAM lParam, BOOL &bHandled)
{
NMHDR *pnmhdr = (NMHDR*)lParam;
switch (pnmhdr->code)
{
case TVN_ITEMEXPANDING:
return OnTreeItemExpanding((LPNMTREEVIEW)lParam);
//case TVN_SINGLEEXPAND:
case TVN_SELCHANGED:
if (pnmhdr->hwndFrom == m_hwndTreeView)
_OnSelectionChanged((LPNMTREEVIEW)lParam);
break;
case TVN_DELETEITEM:
OnTreeItemDeleted((LPNMTREEVIEW)lParam);
break;
case NM_CLICK:
case NM_RCLICK:
if (pnmhdr->hwndFrom == m_hwndTreeView)
{
TVHITTESTINFO HitTest;
::GetCursorPos(&HitTest.pt);
::ScreenToClient(m_hwndTreeView, &HitTest.pt);
TreeView_HitTest(m_hwndTreeView, &HitTest);
if (HitTest.flags & (TVHT_ABOVE | TVHT_BELOW | TVHT_NOWHERE))
return TRUE; // Prevents click processing
if (HitTest.flags & TVHT_ONITEMBUTTON) // [+] / [-]
break; // Do default processing
// Generate selection notification even if same item
m_hwndTreeView.SendMessage(WM_SETREDRAW, FALSE, 0);
TreeView_SelectItem(m_hwndTreeView, NULL);
TreeView_SelectItem(m_hwndTreeView, HitTest.hItem);
m_hwndTreeView.SendMessage(WM_SETREDRAW, TRUE, 0);
if (pnmhdr->code == NM_CLICK)
return TRUE; // Prevents click processing
}
break;
case TVN_BEGINDRAG:
case TVN_BEGINRDRAG:
OnTreeItemDragging((LPNMTREEVIEW)lParam, pnmhdr->code == TVN_BEGINRDRAG);
break;
case TVN_BEGINLABELEDITW:
return OnBeginLabelEdit((LPNMTVDISPINFO)lParam);
case TVN_ENDLABELEDITW:
return OnEndLabelEdit((LPNMTVDISPINFO)lParam);
default:
break;
}
return 0;
}
// Temporary menu
struct CMenuTemp
{
HMENU m_hMenu = NULL;
CMenuTemp(HMENU hMenu) : m_hMenu(hMenu)
{
}
~CMenuTemp()
{
if (m_hMenu)
::DestroyMenu(m_hMenu);
}
operator HMENU() const
{
return m_hMenu;
}
};
// *** ATL event handlers ***
LRESULT CNSCBand::OnContextMenu(UINT uMsg, WPARAM wParam, LPARAM lParam, BOOL &bHandled)
{
HWND hwndTarget = reinterpret_cast<HWND>(wParam);
if (hwndTarget && (hwndTarget == m_hwndToolbar || hwndTarget == m_hWnd))
{
FIXME("Show 'Close Toolbar' menu\n");
return 0;
}
HTREEITEM hItem = TreeView_GetSelection(m_hwndTreeView);
if (!hItem)
return 0;
POINT pt = { (SHORT)LOWORD(lParam), (SHORT)HIWORD(lParam) };
if ((UINT)lParam == (UINT)-1)
{
RECT rc;
if (TreeView_GetItemRect(m_hwndTreeView, hItem, &rc, TRUE))
{
// Center of item rectangle
pt.x = (rc.left + rc.right) / 2;
pt.y = (rc.top + rc.bottom) / 2;
}
ClientToScreen(&pt);
}
CItemData *info = GetItemData(hItem);
if (!info)
{
ERR("No node data, something has gone wrong\n");
return 0;
}
CComPtr<IShellFolder> pFolder;
LPCITEMIDLIST pidlChild;
HRESULT hr = SHBindToParent(info->absolutePidl, IID_PPV_ARG(IShellFolder, &pFolder), &pidlChild);
if (FAILED_UNEXPECTEDLY(hr))
return 0;
CComPtr<IContextMenu> contextMenu;
hr = pFolder->GetUIObjectOf(m_hWnd, 1, &pidlChild, IID_NULL_PPV_ARG(IContextMenu, &contextMenu));
if (FAILED_UNEXPECTEDLY(hr))
return 0;
IUnknown_SetSite(contextMenu, (IDeskBand *)this);
UINT cmf = CMF_EXPLORE;
SFGAOF attr = SFGAO_CANRENAME;
hr = pFolder->GetAttributesOf(1, &pidlChild, &attr);
if (SUCCEEDED(hr) && (attr & SFGAO_CANRENAME))
cmf |= CMF_CANRENAME;
CMenuTemp menuTemp(::CreatePopupMenu());
UINT idCmdFirst = max(FCIDM_SHVIEWFIRST, 1);
hr = contextMenu->QueryContextMenu(menuTemp, 0, idCmdFirst, FCIDM_SHVIEWLAST, cmf);
if (FAILED_UNEXPECTEDLY(hr))
return 0;
enum { flags = TPM_LEFTALIGN | TPM_RETURNCMD | TPM_LEFTBUTTON | TPM_RIGHTBUTTON };
UINT uCommand = ::TrackPopupMenu(menuTemp, flags, pt.x, pt.y, 0, m_hWnd, NULL);
if (uCommand)
{
uCommand -= idCmdFirst;
// Do DFM_CMD_RENAME in the treeview
if ((cmf & CMF_CANRENAME) && SHELL_IsVerb(contextMenu, uCommand, L"rename"))
{
m_hwndTreeView.SetFocus();
if (TreeView_EditLabel(m_hwndTreeView, hItem))
m_oldSelected = hItem;
return 0;
}
hr = _ExecuteCommand(contextMenu, uCommand);
}
return TRUE;
}
// WM_USER_SHELLEVENT
LRESULT CNSCBand::OnShellEvent(UINT uMsg, WPARAM wParam, LPARAM lParam, BOOL &bHandled)
{
// We use SHCNRF_NewDelivery method
HANDLE hChange = (HANDLE)wParam;
DWORD dwProcID = (DWORD)lParam;
PIDLIST_ABSOLUTE *ppidl = NULL;
LONG lEvent;
HANDLE hLock = SHChangeNotification_Lock(hChange, dwProcID, &ppidl, &lEvent);
if (!hLock)
{
ERR("!hLock\n");
return 0;
}
OnChangeNotify(ppidl[0], ppidl[1], (lEvent & ~SHCNE_INTERRUPT));
SHChangeNotification_Unlock(hLock);
return 0;
}
// *** IOleWindow ***
STDMETHODIMP CNSCBand::GetWindow(HWND *lphwnd)
{
if (!lphwnd)
return E_INVALIDARG;
*lphwnd = m_hWnd;
return S_OK;
}
STDMETHODIMP CNSCBand::ContextSensitiveHelp(BOOL fEnterMode)
{
UNIMPLEMENTED;
return E_NOTIMPL;
}
// *** IDockingWindow ***
STDMETHODIMP CNSCBand::CloseDW(DWORD dwReserved)
{
// We do nothing, we don't have anything to save yet
TRACE("CloseDW called\n");
return S_OK;
}
STDMETHODIMP CNSCBand::ResizeBorderDW(const RECT *prcBorder, IUnknown *punkToolbarSite, BOOL fReserved)
{
/* Must return E_NOTIMPL according to MSDN */
return E_NOTIMPL;
}
STDMETHODIMP CNSCBand::ShowDW(BOOL fShow)
{
m_fVisible = fShow;
ShowWindow(fShow ? SW_SHOW : SW_HIDE);
return S_OK;
}
// *** IDeskBand ***
STDMETHODIMP CNSCBand::GetBandInfo(DWORD dwBandID, DWORD dwViewMode, DESKBANDINFO *pdbi)
{
if (!pdbi)
return E_INVALIDARG;
m_dwBandID = dwBandID;
if (pdbi->dwMask & DBIM_MINSIZE)
{
pdbi->ptMinSize.x = 200;
pdbi->ptMinSize.y = 30;
}
if (pdbi->dwMask & DBIM_MAXSIZE)
pdbi->ptMaxSize.y = -1;
if (pdbi->dwMask & DBIM_INTEGRAL)
pdbi->ptIntegral.y = 1;
if (pdbi->dwMask & DBIM_ACTUAL)
{
pdbi->ptActual.x = 200;
pdbi->ptActual.y = 30;
}
if (pdbi->dwMask & DBIM_TITLE)
{
_GetTitle(pdbi->wszTitle, _countof(pdbi->wszTitle));
}
if (pdbi->dwMask & DBIM_MODEFLAGS)
pdbi->dwModeFlags = DBIMF_NORMAL | DBIMF_VARIABLEHEIGHT;
if (pdbi->dwMask & DBIM_BKCOLOR)
pdbi->dwMask &= ~DBIM_BKCOLOR;
return S_OK;
}
// *** IObjectWithSite ***
STDMETHODIMP CNSCBand::SetSite(IUnknown *pUnkSite)
{
HRESULT hr;
if (pUnkSite == m_pSite)
return S_OK;
TRACE("SetSite called\n");
if (!pUnkSite)
{
DestroyWindow();
m_hWnd = NULL;
}
if (pUnkSite != m_pSite)
m_pSite = NULL;
if (!pUnkSite)
return S_OK;
HWND hwndParent;
hr = IUnknown_GetWindow(pUnkSite, &hwndParent);
if (FAILED_UNEXPECTEDLY(hr))
return E_INVALIDARG;
m_pSite = pUnkSite;
if (m_hWnd)
{
SetParent(hwndParent); // Change its parent
}
else
{
enum { style = WS_CHILD | WS_VISIBLE | WS_CLIPSIBLINGS | WS_CLIPCHILDREN };
this->Create(hwndParent, NULL, NULL, style, 0, 0U, NULL);
}
_RegisterChangeNotify();
return S_OK;
}
STDMETHODIMP CNSCBand::GetSite(REFIID riid, void **ppvSite)
{
if (!ppvSite)
return E_POINTER;
*ppvSite = m_pSite;
return S_OK;
}
// *** IOleCommandTarget ***
STDMETHODIMP CNSCBand::QueryStatus(const GUID *pguidCmdGroup, ULONG cCmds, OLECMD prgCmds [], OLECMDTEXT *pCmdText)
{
UNIMPLEMENTED;
return E_NOTIMPL;
}
STDMETHODIMP CNSCBand::Exec(const GUID *pguidCmdGroup, DWORD nCmdID, DWORD nCmdexecopt, VARIANT *pvaIn, VARIANT *pvaOut)
{
UNIMPLEMENTED;
return E_NOTIMPL;
}
// *** IServiceProvider ***
STDMETHODIMP CNSCBand::QueryService(REFGUID guidService, REFIID riid, void **ppvObject)
{
return IUnknown_QueryService(m_pSite, guidService, riid, ppvObject);
}
// *** IContextMenu ***
STDMETHODIMP CNSCBand::QueryContextMenu(
HMENU hmenu,
UINT indexMenu,
UINT idCmdFirst,
UINT idCmdLast,
UINT uFlags)
{
UNIMPLEMENTED;
return E_NOTIMPL;
}
STDMETHODIMP CNSCBand::InvokeCommand(
LPCMINVOKECOMMANDINFO lpici)
{
UNIMPLEMENTED;
return E_NOTIMPL;
}
STDMETHODIMP CNSCBand::GetCommandString(
UINT_PTR idCmd,
UINT uType,
UINT *pwReserved,
LPSTR pszName,
UINT cchMax)
{
UNIMPLEMENTED;
return E_NOTIMPL;
}
// *** IInputObject ***
STDMETHODIMP CNSCBand::UIActivateIO(BOOL fActivate, LPMSG lpMsg)
{
if (fActivate)
{
m_hwndTreeView.SetFocus();
}
if (lpMsg)
{
TranslateMessage(lpMsg);
DispatchMessage(lpMsg);
}
return S_OK;
}
STDMETHODIMP CNSCBand::HasFocusIO()
{
return m_bFocused ? S_OK : S_FALSE;
}
STDMETHODIMP CNSCBand::TranslateAcceleratorIO(LPMSG lpMsg)
{
if (lpMsg->hwnd == m_hWnd ||
(m_isEditing && IsChild(lpMsg->hwnd)))
{
TranslateMessage(lpMsg);
DispatchMessage(lpMsg);
return S_OK;
}
return S_FALSE;
}
// *** IPersist ***
STDMETHODIMP CNSCBand::GetClassID(CLSID *pClassID)
{
return E_NOTIMPL;
}
// *** IPersistStream ***
STDMETHODIMP CNSCBand::IsDirty()
{
UNIMPLEMENTED;
return E_NOTIMPL;
}
STDMETHODIMP CNSCBand::Load(IStream *pStm)
{
UNIMPLEMENTED;
return E_NOTIMPL;
}
STDMETHODIMP CNSCBand::Save(IStream *pStm, BOOL fClearDirty)
{
UNIMPLEMENTED;
return E_NOTIMPL;
}
STDMETHODIMP CNSCBand::GetSizeMax(ULARGE_INTEGER *pcbSize)
{
UNIMPLEMENTED;
return E_NOTIMPL;
}
// *** IWinEventHandler ***
STDMETHODIMP CNSCBand::OnWinEvent(HWND hWnd, UINT uMsg, WPARAM wParam, LPARAM lParam, LRESULT *theResult)
{
return S_OK;
}
STDMETHODIMP CNSCBand::IsWindowOwner(HWND hWnd)
{
return SHIsChildOrSelf(m_hWnd, hWnd);
}
// *** IBandNavigate ***
STDMETHODIMP CNSCBand::Select(LPCITEMIDLIST pidl)
{
UNIMPLEMENTED;
return E_NOTIMPL;
}
// *** INamespaceProxy ***
// Returns the ITEMIDLIST that should be navigated when an item is invoked.
STDMETHODIMP CNSCBand::GetNavigateTarget(
_In_ PCIDLIST_ABSOLUTE pidl,
_Out_ PIDLIST_ABSOLUTE *ppidlTarget,
_Out_ ULONG *pulAttrib)
{
*pulAttrib = 0;
WCHAR szPath[MAX_PATH];
if (!SHGetPathFromIDListW(pidl, szPath))
return E_FAIL;
if (lstrcmpiW(PathFindExtensionW(szPath), L".lnk") == 0) // shortcut file?
{
WCHAR szTarget[MAX_PATH];
HRESULT hr = SHDOCVW_GetPathOfShortcut(m_hWnd, szPath, szTarget);
if (SUCCEEDED(hr))
{
lstrcpynW(szPath, szTarget, _countof(szPath));
*pulAttrib |= SFGAO_LINK;
}
}
if (PathIsDirectoryW(szPath) || PathIsRootW(szPath))
*pulAttrib |= SFGAO_FOLDER;
*ppidlTarget = ILCreateFromPathW(szPath);
return S_OK;
}
// Handles a user action on an item.
STDMETHODIMP CNSCBand::Invoke(_In_ PCIDLIST_ABSOLUTE pidl)
{
UNIMPLEMENTED;
return E_NOTIMPL;
}
// Called when the user has selected an item.
STDMETHODIMP CNSCBand::OnSelectionChanged(_In_ PCIDLIST_ABSOLUTE pidl)
{
return S_OK;
}
// Returns flags used to update the tree control.
STDMETHODIMP CNSCBand::RefreshFlags(
_Out_ DWORD *pdwStyle,
_Out_ DWORD *pdwExStyle,
_Out_ DWORD *dwEnum)
{
*pdwStyle = _GetTVStyle();
*pdwExStyle = _GetTVExStyle();
*dwEnum = _GetEnumFlags();
return S_OK;
}
STDMETHODIMP CNSCBand::CacheItem(
_In_ PCIDLIST_ABSOLUTE pidl)
{
UNIMPLEMENTED;
return E_NOTIMPL;
}
// *** IDropTarget methods ***
STDMETHODIMP CNSCBand::DragEnter(IDataObject *pObj, DWORD glfKeyState, POINTL pt, DWORD *pdwEffect)
{
ERR("Entering drag\n");
m_pCurObject = pObj;
m_oldSelected = TreeView_GetSelection(m_hwndTreeView);
return DragOver(glfKeyState, pt, pdwEffect);
}
STDMETHODIMP CNSCBand::DragOver(DWORD glfKeyState, POINTL pt, DWORD *pdwEffect)
{
TVHITTESTINFO info;
info.pt.x = pt.x;
info.pt.y = pt.y;
info.flags = TVHT_ONITEM;
info.hItem = NULL;
ScreenToClient(&info.pt);
// Move to the item selected by the treeview (don't change right pane)
TreeView_HitTest(m_hwndTreeView, &info);
HRESULT hr;
if (!info.hItem)
{
m_childTargetNode = NULL;
m_pDropTarget = NULL;
*pdwEffect = DROPEFFECT_NONE;
return S_OK;
}
++m_mtxBlockNavigate;
TreeView_SelectItem(m_hwndTreeView, info.hItem);
--m_mtxBlockNavigate;
// Delegate to shell folder
if (m_pDropTarget && info.hItem != m_childTargetNode)
m_pDropTarget = NULL;
if (info.hItem != m_childTargetNode)
{
CItemData *pItemData = GetItemData(info.hItem);
if (!pItemData)
return E_FAIL;
CComPtr<IShellFolder> pFolder;
if (_ILIsDesktop(pItemData->absolutePidl))
{
pFolder = m_pDesktop;
}
else
{
hr = m_pDesktop->BindToObject(pItemData->absolutePidl, 0, IID_PPV_ARG(IShellFolder, &pFolder));
if (!SUCCEEDED(hr))
{
/* Don't allow dnd since we couldn't get our folder object */
ERR("Can't bind to folder object\n");
*pdwEffect = DROPEFFECT_NONE;
return E_FAIL;
}
}
hr = pFolder->CreateViewObject(m_hWnd, IID_PPV_ARG(IDropTarget, &m_pDropTarget));
if (!SUCCEEDED(hr))
{
/* Don't allow dnd since we couldn't get our drop target */
ERR("Can't get drop target for folder object\n");
*pdwEffect = DROPEFFECT_NONE;
return E_FAIL;
}
hr = m_pDropTarget->DragEnter(m_pCurObject, glfKeyState, pt, pdwEffect);
m_childTargetNode = info.hItem;
}
if (m_pDropTarget)
hr = m_pDropTarget->DragOver(glfKeyState, pt, pdwEffect);
return S_OK;
}
STDMETHODIMP CNSCBand::DragLeave()
{
++m_mtxBlockNavigate;
TreeView_SelectItem(m_hwndTreeView, m_oldSelected);
--m_mtxBlockNavigate;
m_childTargetNode = NULL;
if (m_pCurObject)
m_pCurObject = NULL;
return S_OK;
}
STDMETHODIMP CNSCBand::Drop(IDataObject *pObj, DWORD glfKeyState, POINTL pt, DWORD *pdwEffect)
{
if (!m_pDropTarget)
return E_FAIL;
m_pDropTarget->Drop(pObj, glfKeyState, pt, pdwEffect);
DragLeave();
return S_OK;
}
// *** IDropSource methods ***
STDMETHODIMP CNSCBand::QueryContinueDrag(BOOL fEscapePressed, DWORD grfKeyState)
{
if (fEscapePressed)
return DRAGDROP_S_CANCEL;
if ((grfKeyState & MK_LBUTTON) || (grfKeyState & MK_RBUTTON))
return S_OK;
return DRAGDROP_S_DROP;
}
STDMETHODIMP CNSCBand::GiveFeedback(DWORD dwEffect)
{
return DRAGDROP_S_USEDEFAULTCURSORS;
}
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