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#include "priv.h"
#include "nsc.h"
#include "resource.h"
#include "subsmgr.h"
#include "favorite.h" //for IsSubscribed()
#include "chanmgr.h"
#include "chanmgrp.h"
#include <mstask.h> // TASK_TRIGGER
#include "dpastuff.h"
#include <findhlp.h>
#include <ntquery.h> // defines some values used for fmtid and pid
#include "nsctask.h"
#include <mluisupp.h>
#include <varutil.h>
#include <dobjutil.h>
#define IDH_ORGFAVS_LIST 50490 // defined in iehelpid.h (can't include due to conflicts)
#define TF_NSC 0x00002000
#define ID_NSC_SUBCLASS 359
#define ID_NSCTREE (DWORD)'NSC'
#define IDT_SELECTION 135
#ifndef UNIX
#define DEFAULT_PATHSTR "C:\\"
#else
#define DEFAULT_PATHSTR "/"
#endif
#define LOGOGAP 2 // all kinds of things
#define DYITEM 17
#define DXYFRAMESEL 1
const DEFAULTORDERPOSITION = 32000;
// HTML displays hard scripting errors if methods on automation interfaces
// return FAILED(). This macro will fix these.
#define FIX_SCRIPTING_ERRORS(hr) (FAILED(hr) ? S_FALSE : hr)
#define DEFINE_SCID(name, fmtid, pid) const SHCOLUMNID name = { fmtid, pid }
DEFINE_SCID(SCID_NAME, PSGUID_STORAGE, PID_STG_NAME); // defined in shell32!prop.cpp
DEFINE_SCID(SCID_ATTRIBUTES, PSGUID_STORAGE, PID_STG_ATTRIBUTES);DEFINE_SCID(SCID_TYPE, PSGUID_STORAGE, PID_STG_STORAGETYPE);DEFINE_SCID(SCID_SIZE, PSGUID_STORAGE, PID_STG_SIZE);DEFINE_SCID(SCID_CREATETIME, PSGUID_STORAGE, PID_STG_CREATETIME);
#define IsEqualSCID(a, b) (((a).pid == (b).pid) && IsEqualIID((a).fmtid, (b).fmtid))
HRESULT CheckForExpandOnce(HWND hwndTree, HTREEITEM hti);
// from util.cpp
// same guid as in bandisf.cpp
// {F47162A0-C18F-11d0-A3A5-00C04FD706EC}
static const GUID TOID_ExtractImage = { 0xf47162a0, 0xc18f, 0x11d0, { 0xa3, 0xa5, 0x0, 0xc0, 0x4f, 0xd7, 0x6, 0xec } };//from nsctask.cpp
EXTERN_C const GUID TASKID_IconExtraction; // = { 0xeb30900c, 0x1ac4, 0x11d2, { 0x83, 0x83, 0x0, 0xc0, 0x4f, 0xd9, 0x18, 0xd0 } };
BOOL IsChannelFolder(LPCWSTR pwzPath, LPWSTR pwzChannelURL);
typedef struct{ DWORD iIcon : 12; DWORD iOpenIcon : 12; DWORD nFlags : 4; DWORD nMagic : 4;} NSC_ICONCALLBACKINFO;
typedef struct{ DWORD iOverlayIndex : 28; DWORD nMagic : 4;} NSC_OVERLAYCALLBACKINFO;
struct NSC_BKGDENUMDONEDATA{ ~NSC_BKGDENUMDONEDATA() { ILFree(pidl); ILFree(pidlExpandingTo); OrderList_Destroy(&hdpa, TRUE); }
NSC_BKGDENUMDONEDATA * pNext;
LPITEMIDLIST pidl; HTREEITEM hitem; DWORD dwSig; HDPA hdpa; LPITEMIDLIST pidlExpandingTo; DWORD dwOrderSig; UINT uDepth; BOOL fUpdate; BOOL fUpdatePidls;};
//if you don't remove the selection, treeview will expand everything below the current selection
void TreeView_DeleteAllItemsQuickly(HWND hwnd){ TreeView_SelectItem(hwnd, NULL); TreeView_DeleteAllItems(hwnd);}
#define NSC_CHILDREN_REMOVE 0
#define NSC_CHILDREN_ADD 1
#define NSC_CHILDREN_FORCE 2
#define NSC_CHILDREN_CALLBACK 3
void TreeView_SetChildren(HWND hwnd, HTREEITEM hti, UINT uFlag){ TV_ITEM tvi; tvi.mask = TVIF_CHILDREN | TVIF_HANDLE; // only change the number of children
tvi.hItem = hti;
switch (uFlag) { case NSC_CHILDREN_REMOVE: tvi.cChildren = IsOS(OS_WHISTLERORGREATER) ? I_CHILDRENAUTO : 0; break; case NSC_CHILDREN_ADD: tvi.cChildren = IsOS(OS_WHISTLERORGREATER) ? I_CHILDRENAUTO : 1; break;
case NSC_CHILDREN_FORCE: tvi.cChildren = 1; break;
case NSC_CHILDREN_CALLBACK: tvi.cChildren = I_CHILDRENCALLBACK; break;
default: ASSERTMSG(FALSE, "wrong parameter passed to TreeView_SetChildren in nsc"); break; }
TreeView_SetItem(hwnd, &tvi);}
void TreeView_DeleteChildren(HWND hwnd, HTREEITEM hti){ for (HTREEITEM htiTemp = TreeView_GetChild(hwnd, hti); htiTemp;) { HTREEITEM htiDelete = htiTemp; htiTemp = TreeView_GetNextSibling(hwnd, htiTemp); TreeView_DeleteItem(hwnd, htiDelete); }}
BOOL IsParentOfItem(HWND hwnd, HTREEITEM htiParent, HTREEITEM htiChild){ for (HTREEITEM hti = htiChild; (hti != TVI_ROOT) && (hti != NULL); hti = TreeView_GetParent(hwnd, hti)) if (hti == htiParent) return TRUE;
return FALSE;}
STDAPI CNscTree_CreateInstance(IUnknown * punkOuter, IUnknown ** ppunk, LPCOBJECTINFO poi){ HRESULT hr; CComObject<CNscTree> *pnsct;
CComObject<CNscTree>::CreateInstance(&pnsct); if (pnsct) { hr = S_OK; *ppunk = pnsct->GetUnknown(); ASSERT(*ppunk); (*ppunk)->AddRef(); // atl doesn't addref in create instance or getunknown about
} else { *ppunk = NULL; hr = E_OUTOFMEMORY; }
return hr;}
INSCTree2 *CNscTree_CreateInstance(void){ INSCTree2 *pnsct = NULL; IUnknown *punk; if (SUCCEEDED(CNscTree_CreateInstance(NULL, &punk, NULL))) { punk->QueryInterface(IID_PPV_ARG(INSCTree2, &pnsct)); punk->Release(); } return pnsct;}
//////////////////////////////////////////////////////////////////////////////
CNscTree::CNscTree() : _iDragSrc(-1), _iDragDest(-1), _fOnline(!SHIsGlobalOffline()){ // This object is a COM object so it will always be on the heap.
// ASSERT that our member variables were zero initialized.
ASSERT(!_fInitialized); ASSERT(!_dwTVFlags); ASSERT(!_hdpaColumns); ASSERT(!_hdpaViews); m_bWindowOnly = TRUE;
_mode = MODE_FAVORITES | MODE_CONTROL; //everyone sets the mode except organize favorites
_csidl = CSIDL_FAVORITES; _dwFlags = NSS_DROPTARGET | NSS_BROWSERSELECT; //this should be default only in control mode
_grfFlags = SHCONTF_FOLDERS | SHCONTF_NONFOLDERS;
_ulSortCol = _ulDisplayCol = (ULONG)-1;
// Enable the notifications from wininet that tell us when to gray items
// or update a pinned glyph
_inetNotify.Enable();
InitializeCriticalSection(&_csBackgroundData);}
CNscTree::~CNscTree(){ Pidl_Set(&_pidlSelected, NULL);
// This needs to be destroyed or we leak the icon handle.
if (_hicoPinned) DestroyIcon(_hicoPinned);
if (_hdpaColumns) { DPA_DestroyCallback(_hdpaColumns, DPADeleteItemCB, NULL); _hdpaColumns = NULL; }
if (_hdpaViews) { DPA_DestroyCallback(_hdpaViews, DPADeletePidlsCB, NULL); _hdpaViews = NULL; }
EnterCriticalSection(&_csBackgroundData); while (_pbeddList) { // Extract the first element of the list
NSC_BKGDENUMDONEDATA * pbedd = _pbeddList; _pbeddList = pbedd->pNext; delete pbedd; } LeaveCriticalSection(&_csBackgroundData);
DeleteCriticalSection(&_csBackgroundData);}
void CNscTree::_ReleaseCachedShellFolder(){ ATOMICRELEASE(_psfCache); ATOMICRELEASE(_psf2Cache); _ulSortCol = _ulDisplayCol = (ULONG)-1; _htiCache = NULL;}
#ifdef DEBUG
void CNscTree::TraceHTREE(HTREEITEM hti, LPCTSTR pszDebugMsg){ TCHAR szDebug[MAX_PATH] = TEXT("Root");
if (hti != TVI_ROOT && hti) { TVITEM tvi; tvi.mask = TVIF_TEXT | TVIF_HANDLE; tvi.hItem = hti; tvi.pszText = szDebug; tvi.cchTextMax = MAX_PATH; TreeView_GetItem(_hwndTree, &tvi); }
TraceMsg(TF_NSC, "NSCBand: %s - %s", pszDebugMsg, szDebug);}
void CNscTree::TracePIDL(LPCITEMIDLIST pidl, LPCTSTR pszDebugMsg){ TCHAR szDebugName[MAX_URL_STRING] = TEXT("Desktop"); STRRET str; if (_psfCache && SUCCEEDED(_psfCache->GetDisplayNameOf(pidl, SHGDN_FORPARSING, &str))) { StrRetToBuf(&str, pidl, szDebugName, ARRAYSIZE(szDebugName)); } TraceMsg(TF_NSC, "NSCBand: %s - %s", pszDebugMsg, szDebugName);}
void CNscTree::TracePIDLAbs(LPCITEMIDLIST pidl, LPCTSTR pszDebugMsg){ TCHAR szDebugName[MAX_URL_STRING] = TEXT("Desktop"); IEGetDisplayName(pidl, szDebugName, SHGDN_FORPARSING); TraceMsg(TF_NSC, "NSCBand: %s - %s", pszDebugMsg, szDebugName);}#endif
void CNscTree::_AssignPidl(PORDERITEM poi, LPITEMIDLIST pidlNew){ if (poi && pidlNew) { // We are assuming that its only replacing the last element...
ASSERT(ILFindLastID(pidlNew) == pidlNew);
LPITEMIDLIST pidlParent = ILCloneParent(poi->pidl); if (pidlParent) { LPITEMIDLIST pidlT = ILCombine(pidlParent, pidlNew); if (pidlT) { Pidl_Set(&poi->pidl, pidlT); ILFree(pidlT); } ILFree(pidlParent); } }}
/*****************************************************\
DESCRIPTION: We want to unsubclass/subclass everytime we change roots so we get the correct notifications for everything in that subtree of the shell name space.\*****************************************************/void CNscTree::_SubClass(LPCITEMIDLIST pidlRoot){ LPITEMIDLIST pidlToFree = NULL; if (NULL == pidlRoot) // (NULL == CSIDL_DESKTOP)
{ SHGetSpecialFolderLocation(NULL, CSIDL_DESKTOP, (LPITEMIDLIST *) &pidlRoot); pidlToFree = (LPITEMIDLIST) pidlRoot; } // It's necessary
if (!_fSubClassed && pidlRoot) { if (_SubclassWindow(_hwndTree)) { _RegisterWindow(_hwndTree, pidlRoot, SHCNE_DRIVEADD|SHCNE_CREATE|SHCNE_MKDIR|SHCNE_DRIVEREMOVED| SHCNE_DELETE|SHCNE_RMDIR|SHCNE_RENAMEITEM|SHCNE_RENAMEFOLDER| SHCNE_MEDIAINSERTED|SHCNE_MEDIAREMOVED|SHCNE_NETUNSHARE|SHCNE_NETSHARE| SHCNE_UPDATEITEM|SHCNE_UPDATEIMAGE|SHCNE_ASSOCCHANGED| SHCNE_UPDATEDIR | SHCNE_EXTENDED_EVENT, ((_mode & MODE_HISTORY) ? SHCNRF_ShellLevel : SHCNRF_ShellLevel | SHCNRF_InterruptLevel)); }
ASSERT(_hwndTree); _fSubClassed = SetWindowSubclass(_hwndTree, s_SubClassTreeWndProc, ID_NSCTREE, (DWORD_PTR)this); }
if (pidlToFree) // Did we have to alloc our own pidl?
ILFree(pidlToFree); // Yes.
}
/*****************************************************\
DESCRIPTION: We want to unsubclass/subclass everytime we change roots so we get the correct notifications for everything in that subtree of the shell name space.\*****************************************************/void CNscTree::_UnSubClass(void){ if (_fSubClassed) { _fSubClassed = FALSE; RemoveWindowSubclass(_hwndTree, s_SubClassTreeWndProc, ID_NSCTREE); _UnregisterWindow(_hwndTree); _UnsubclassWindow(_hwndTree); }}
void CNscTree::_ReleasePidls(void){ Pidl_Set(&_pidlRoot, NULL); Pidl_Set(&_pidlNavigatingTo, NULL);}
HRESULT CNscTree::ShowWindow(BOOL fShow){ if (fShow) _TvOnShow(); else _TvOnHide();
return S_OK;}
HRESULT CNscTree::SetSite(IUnknown *punkSite){ ATOMICRELEASE(_pnscProxy);
if (!punkSite) { // We need to prepare to go away and squirel
// away the currently selected pidl(s) because
// the caller may call INSCTree::GetSelectedItem()
// after the tree is gone.
_OnWindowCleanup(); } else { punkSite->QueryInterface(IID_PPV_ARG(INamespaceProxy, &_pnscProxy)); } return CObjectWithSite::SetSite(punkSite);}
DWORD BackgroundDestroyScheduler(void *pvData){ IShellTaskScheduler *pTaskScheduler = (IShellTaskScheduler *)pvData;
pTaskScheduler->Release(); return 0;}
EXTERN_C const GUID TASKID_BackgroundEnum;
HRESULT CNscTree::_OnWindowCleanup(void){ _fClosing = TRUE;
if (_hwndTree) { ASSERT(::IsWindow(_hwndTree)); // make sure it has not been destroyed (it is a child)
_TvOnHide();
::KillTimer(_hwndTree, IDT_SELECTION); ::SendMessage(_hwndTree, WM_SETREDRAW, FALSE, 0); TreeView_DeleteAllItemsQuickly(_hwndTree); _UnSubClass();
_hwndTree = NULL; }
// Squirel away the selected pidl in case the caller asks for it after the
// treeview is gone.
if (!_fIsSelectionCached) { _fIsSelectionCached = TRUE; Pidl_Set(&_pidlSelected, NULL); GetSelectedItem(&_pidlSelected, 0); }
ATOMICRELEASE(_pFilter); if (_pTaskScheduler) { _pTaskScheduler->RemoveTasks(TOID_NULL, ITSAT_DEFAULT_LPARAM, FALSE); if (_pTaskScheduler->CountTasks(TASKID_BackgroundEnum) == 0) { _pTaskScheduler->Release(); } // We need to keep Browseui loaded because we depend on the CShellTaskScheduler
// to be still around when our background task executes. Browseui can be unloaded by COM when
// we CoUninit from this thread.
else if (!SHQueueUserWorkItem(BackgroundDestroyScheduler, (void *)_pTaskScheduler, 0, NULL, NULL, "browseui.dll", 0)) { _pTaskScheduler->Release(); }
_pTaskScheduler = NULL; }
_ReleasePidls(); _ReleaseCachedShellFolder();
return S_OK;}
ITEMINFO *CNscTree::_GetTreeItemInfo(HTREEITEM hti){ TV_ITEM tvi; tvi.mask = TVIF_PARAM | TVIF_HANDLE; tvi.hItem = hti; if (!TreeView_GetItem(_hwndTree, &tvi)) return NULL; return (ITEMINFO *)tvi.lParam;}
PORDERITEM CNscTree::_GetTreeOrderItem(HTREEITEM hti){ ITEMINFO *pii = _GetTreeItemInfo(hti); return pii ? pii->poi : NULL;}
// builds a fully qualified IDLIST from a given tree node by walking up the tree
// be sure to free this when you are done!
LPITEMIDLIST CNscTree::_GetFullIDList(HTREEITEM hti){ LPITEMIDLIST pidl, pidlT = NULL;
if ((hti == TVI_ROOT) || (hti == NULL)) // evil root
{ pidlT = ILClone(_pidlRoot); return pidlT; } // now lets get the information about the item
PORDERITEM poi = _GetTreeOrderItem(hti); if (!poi) { return NULL; } pidl = ILClone(poi->pidl); if (pidl && _pidlRoot) { while ((hti = TreeView_GetParent(_hwndTree, hti))) { poi = _GetTreeOrderItem(hti); if (!poi) return pidl; // will assume I messed up...
if (poi->pidl) pidlT = ILCombine(poi->pidl, pidl); else pidlT = NULL; ILFree(pidl); pidl = pidlT; if (pidl == NULL) break; // outta memory
} if (pidl) { // MODE_NORMAL has the pidl root in the tree
if (_mode != MODE_NORMAL) { pidlT = ILCombine(_pidlRoot, pidl); // gotta get the silent root
ILFree(pidl); } else pidlT = pidl; } } return pidlT;}
BOOL _IsItemFileSystem(IShellFolder *psf, LPCITEMIDLIST pidl){ return (SHGetAttributes(psf, pidl, SFGAO_FOLDER | SFGAO_FILESYSTEM) == (SFGAO_FOLDER | SFGAO_FILESYSTEM));}
HTREEITEM CNscTree::_AddItemToTree(HTREEITEM htiParent, LPITEMIDLIST pidl, int cChildren, int iPos, HTREEITEM htiAfter, /* = TVI_LAST*/ BOOL fCheckForDups, /* = TRUE */ BOOL fMarked /*= FALSE */){ HTREEITEM htiRet = NULL;
BOOL fCached; // So we need to cached the shell folder of the parent item. But, this is a little interesting:
if (_mode == MODE_NORMAL && htiParent == TVI_ROOT) { // In "Normal" mode, or "Display root in NSC" mode, there is only 1 item that is parented to
// TVI_ROOT. So when we do an _AddItemToTree, we need the shell folder that contains _pidlRoot or
// the Parent of TVI_ROOT.
fCached = (NULL != _CacheParentShellFolder(htiParent, NULL)); } else { // But, in the "Favorites, Control or History" if htiParent is TVI_ROOT, then we are not adding _pidlRoot,
// so we actually need the folder that IS TVI_ROOT.
fCached = _CacheShellFolder(htiParent); }
if (fCached) { LPITEMIDLIST pidlNew = ILClone(pidl); if (pidlNew) { PORDERITEM poi = OrderItem_Create(pidlNew, iPos); if (poi) { ITEMINFO *pii = (ITEMINFO *)LocalAlloc(LPTR, sizeof(*pii)); if (pii) { pii->dwSig = _dwSignature++; pii->poi = poi;
// For the normal case, we need a relative pidl for this add, but the lParam needs to have a full
// pidl (This is so that arbitrary mounting works, as well as desktop case).
pidl = pidlNew; //reuse variable
if (_mode == MODE_NORMAL && htiParent == TVI_ROOT) { pidl = ILFindLastID(pidl); }
if (!fCheckForDups || (NULL == (htiRet = _FindChild(_psfCache, htiParent, pidl)))) { TV_INSERTSTRUCT tii; // Initialize item to add with callback for everything
tii.item.mask = TVIF_TEXT | TVIF_IMAGE | TVIF_SELECTEDIMAGE | TVIF_PARAM | TVIF_CHILDREN | TVIF_STATE; tii.hParent = htiParent; tii.hInsertAfter = htiAfter; tii.item.iImage = I_IMAGECALLBACK; tii.item.iSelectedImage = I_IMAGECALLBACK; tii.item.pszText = LPSTR_TEXTCALLBACK; tii.item.cChildren = cChildren; tii.item.lParam = (LPARAM)pii; tii.item.stateMask = TVIS_STATEIMAGEMASK; tii.item.state = (fMarked ? NSC_TVIS_MARKED : 0);
#ifdef DEBUG
TracePIDL(pidl, TEXT("Inserting")); TraceMsg(TF_NSC, "_AddItemToTree(htiParent=%#08lx, htiAfter=%#08lx, fCheckForDups=%d, _psfCache=%#08lx)", htiParent, htiAfter, fCheckForDups, _psfCache); #endif // DEBUG
pii->fNavigable = !_IsItemFileSystem(_psfCache, pidl);
htiRet = TreeView_InsertItem(_hwndTree, &tii); if (htiRet) { pii = NULL; // don't free
poi = NULL; // don't free
pidlNew = NULL; } } if (pii) { LocalFree(pii); pii = NULL; } } if (poi) OrderItem_Free(poi, FALSE); } ILFree(pidlNew); } } return htiRet;}
DWORD CNscTree::_SetExStyle(DWORD dwExStyle){ DWORD dwOldStyle = _dwExStyle;
_dwExStyle = dwExStyle; return dwOldStyle;}
DWORD CNscTree::_SetStyle(DWORD dwStyle){ dwStyle |= TVS_EDITLABELS | TVS_SHOWSELALWAYS | TVS_NONEVENHEIGHT;
if (dwStyle & WS_HSCROLL) dwStyle &= ~WS_HSCROLL; else dwStyle |= TVS_NOHSCROLL;
if (TVS_HASLINES & dwStyle) dwStyle &= ~TVS_FULLROWSELECT; // If it has TVS_HASLINES, it can't have TVS_FULLROWSELECT
// If the parent window is mirrored then the treeview window will inheret the mirroring flag
// And we need the reading order to be Left to right, which is the right to left in the mirrored mode.
if (((_mode & MODE_HISTORY) || (MODE_NORMAL == _mode)) && IS_WINDOW_RTL_MIRRORED(_hwndParent)) { // This means left to right reading order because this window will be mirrored.
dwStyle |= TVS_RTLREADING; }
// According to Bug#241601, Tooltips display too quickly. The problem is
// the original designer of the InfoTips in the Treeview merged the "InfoTip" tooltip and
// the "I'm too small to display correctly" tooltips. This is really unfortunate because you
// cannot control the display of these tooltips independantly. Therefore we are turning off
// infotips in normal mode. (lamadio) 4.7.99
AssertMsg(_mode != MODE_NORMAL || !(dwStyle & TVS_INFOTIP), TEXT("can't have infotip with normal mode in nsc"));
DWORD dwOldStyle = _style; _style = dwStyle | WS_CHILD | WS_CLIPCHILDREN | WS_CLIPSIBLINGS | WS_VSCROLL | WS_TABSTOP; _fSingleExpand = BOOLIFY(_style & TVS_SINGLEEXPAND);
return dwOldStyle;
}
HRESULT CNscTree::CreateTree(HWND hwndParent, DWORD dwStyles, HWND *phwnd){ return CreateTree2(hwndParent, dwStyles, 0, phwnd);}
HRESULT CNscTree::CreateTree2(HWND hwndParent, DWORD dwStyle, DWORD dwExStyle, HWND *phwnd){ _fIsSelectionCached = FALSE; if (*phwnd) return S_OK;
_hwndParent = hwndParent; _SetStyle(dwStyle); _SetExStyle(dwExStyle); *phwnd = _CreateTreeview(); if (*phwnd == NULL) { return E_OUTOFMEMORY; } ::ShowWindow(_hwndTree, SW_SHOW); return S_OK;}
HWND CNscTree::_CreateTreeview(){ ASSERT(_hwndTree == NULL);
LONG lTop = 0; RECT rcParent; ::GetClientRect(_hwndParent, &rcParent);#if 0
if ((_dwFlags & NSS_HEADER) && _hwndHdr) { RECT rc;
GetWindowRect(_hwndHdr, &rc); lTop = RECTHEIGHT(rc); }#endif
TCHAR szTitle[40]; if (_mode & (MODE_HISTORY | MODE_FAVORITES)) { // create with a window title so that msaa can expose name
int id = (_mode & MODE_HISTORY) ? IDS_BAND_HISTORY : IDS_BAND_FAVORITES; MLLoadString(id, szTitle, ARRAYSIZE(szTitle)); } else { szTitle[0] = 0; }
_hwndTree = CreateWindowEx(0, WC_TREEVIEW, szTitle, _style | WS_VISIBLE, 0, lTop, rcParent.right, rcParent.bottom, _hwndParent, (HMENU)ID_CONTROL, HINST_THISDLL, NULL); if (_hwndTree) { ::SendMessage(_hwndTree, TVM_SETSCROLLTIME, 100, 0); ::SendMessage(_hwndTree, CCM_SETUNICODEFORMAT, DLL_IS_UNICODE, 0); if (_dwExStyle) TreeView_SetExtendedStyle(_hwndTree, _dwExStyle, _dwExStyle); } else { TraceMsg(TF_ERROR, "_hwndTree failed"); }
return _hwndTree;}
UINT GetControlCharWidth(HWND hwnd){ SIZE siz = {0}; CClientDC dc(HWND_DESKTOP);
if (dc.m_hDC) { HFONT hfOld = dc.SelectFont(FORWARD_WM_GETFONT(hwnd, SendMessage));
if (hfOld) { GetTextExtentPoint(dc.m_hDC, TEXT("0"), 1, &siz);
dc.SelectFont(hfOld); } }
return siz.cx;}
HWND CNscTree::_CreateHeader(){ if (!_hwndHdr) { _hwndHdr = CreateWindowEx(0, WC_HEADER, NULL, HDS_HORZ | WS_CHILD, 0, 0, 0, 0, _hwndParent, (HMENU)ID_HEADER, HINST_THISDLL, NULL); if (_hwndHdr) { HD_LAYOUT layout; WINDOWPOS wpos; RECT rcClient; int cxChar = GetControlCharWidth(_hwndTree);
layout.pwpos = &wpos; ::GetClientRect(_hwndParent, &rcClient); layout.prc = &rcClient; if (Header_Layout(_hwndHdr, &layout)) { ::MoveWindow(_hwndTree, 0, wpos.cy, RECTWIDTH(rcClient), RECTHEIGHT(rcClient)-wpos.cy, TRUE); for (int i = 0; i < DPA_GetPtrCount(_hdpaColumns);) { HEADERINFO *phinfo = (HEADERINFO *)DPA_GetPtr(_hdpaColumns, i); if (EVAL(phinfo)) { HD_ITEM item; item.mask = HDI_TEXT | HDI_FORMAT | HDI_WIDTH; item.pszText = phinfo->szName; item.fmt = phinfo->fmt; item.cxy = cxChar * phinfo->cxChar;
if (Header_InsertItem(_hwndHdr, i, &item) == -1) { DPA_DeletePtr(_hdpaColumns, i); LocalFree(phinfo); phinfo = NULL; } else { i++; } } } if (_hwndTree) { HFONT hfont = (HFONT)::SendMessage(_hwndTree, WM_GETFONT, 0, 0);
if (hfont) ::SendMessage(_hwndHdr, WM_SETFONT, (WPARAM)hfont, MAKELPARAM(TRUE, 0)); } ::SetWindowPos(_hwndHdr, wpos.hwndInsertAfter, wpos.x, wpos.y, wpos.cx, wpos.cy, wpos.flags | SWP_SHOWWINDOW); } } }
return _hwndHdr;}
void CNscTree::_TvOnHide(){ _DtRevoke(); ::SetWindowPos(_hwndTree, NULL, 0, 0, 0, 0, SWP_NOMOVE | SWP_NOSIZE | SWP_HIDEWINDOW);}
void CNscTree::_TvOnShow(){ ::SetWindowPos(_hwndTree, NULL, 0, 0, 0, 0, SWP_NOMOVE | SWP_NOSIZE | SWP_SHOWWINDOW); _DtRegister();}
HRESULT IUnknown_GetAmbientProperty(IUnknown *punk, DISPID dispid, VARTYPE vt, void *pData){ HRESULT hr = E_FAIL; if (punk) { IDispatch *pdisp; hr = punk->QueryInterface(IID_PPV_ARG(IDispatch, &pdisp)); if (SUCCEEDED(hr)) { DISPPARAMS dp = {0}; VARIANT v; VariantInit(&v); hr = pdisp->Invoke(dispid, IID_NULL, 0, DISPATCH_PROPERTYGET, &dp, &v, NULL, NULL); if (SUCCEEDED(hr)) { VARIANT vDest; VariantInit(&vDest); // we've got the variant, so now go an coerce it to the type
// that the user wants.
//
hr = VariantChangeType(&vDest, &v, 0, vt); if (SUCCEEDED(hr)) { *((DWORD *)pData) = *((DWORD *)&vDest.lVal); VariantClear(&vDest); } VariantClear(&v); } pdisp->Release(); } } return hr;}
HRESULT CNscTree::_HandleWinIniChange(){ COLORREF clrBk;
if (FAILED(IUnknown_GetAmbientProperty(_punkSite, DISPID_AMBIENT_BACKCOLOR, VT_I4, &clrBk))) clrBk = GetSysColor(COLOR_WINDOW);
TreeView_SetBkColor(_hwndTree, clrBk); if (!(_dwFlags & NSS_NORMALTREEVIEW)) { // make things a bit more spaced out
int cyItem = TreeView_GetItemHeight(_hwndTree); cyItem += LOGOGAP + 1; TreeView_SetItemHeight(_hwndTree, cyItem); }
// Show compressed files in different color...
SHELLSTATE ss; SHGetSetSettings(&ss, SSF_SHOWCOMPCOLOR, FALSE); _fShowCompColor = ss.fShowCompColor;
return S_OK;}
HRESULT CNscTree::Initialize(LPCITEMIDLIST pidlRoot, DWORD grfEnumFlags, DWORD dwFlags){ HRESULT hr;
_grfFlags = grfEnumFlags; // IShellFolder::EnumObjects() flags.
if (!(_mode & MODE_CUSTOM)) { if (_mode != MODE_NORMAL) { dwFlags |= NSS_BORDER; } else { dwFlags |= NSS_NORMALTREEVIEW; } } _dwFlags = dwFlags; // Behavior Flags
if (_dwFlags & NSS_NORMALTREEVIEW) _dwFlags &= ~NSS_HEADER;// multi-select requires owner draw
if (!_fInitialized) { ::SendMessage(_hwndTree, WM_SETREDRAW, FALSE, 0);
_fInitialized = TRUE; SHFILEINFO sfi; HIMAGELIST himl = (HIMAGELIST)SHGetFileInfo(TEXT(DEFAULT_PATHSTR), 0, &sfi, sizeof(SHFILEINFO), SHGFI_SYSICONINDEX | SHGFI_SMALLICON); TreeView_SetImageList(_hwndTree, himl, TVSIL_NORMAL); _DtRegister(); //failure ignored intentionally
THR(CoCreateInstance(CLSID_ShellTaskScheduler, NULL, CLSCTX_INPROC, IID_PPV_ARG(IShellTaskScheduler, &_pTaskScheduler))); if (_pTaskScheduler) _pTaskScheduler->Status(ITSSFLAG_KILL_ON_DESTROY, ITSS_THREAD_TIMEOUT_NO_CHANGE);
hr = Init(); // init lock and scroll handles for CDelegateDropTarget
ASSERT(SUCCEEDED(hr)); if (_dwFlags & NSS_BORDER) { // set borders and space out for all, much cleaner.
TreeView_SetBorder(_hwndTree, TVSBF_XBORDER, 2 * LOGOGAP, 0); } // init some settings
_HandleWinIniChange();
// pidlRoot may equal NULL because that is equal to CSIDL_DESKTOP.
if ((LPITEMIDLIST)INVALID_HANDLE_VALUE != pidlRoot) { _UnSubClass(); _SetRoot(pidlRoot, 1, NULL, NSSR_CREATEPIDL); _SubClass(pidlRoot); } // need top level frame available for D&D if possible.
_hwndDD = ::GetParent(_hwndTree); IOleWindow *pOleWindow; if (SUCCEEDED(IUnknown_QueryService(_punkSite, SID_STopLevelBrowser, IID_PPV_ARG(IOleWindow, &pOleWindow)))) { pOleWindow->GetWindow(&_hwndDD); pOleWindow->Release(); }
//this is a non-ML resource
_hicoPinned = (HICON)LoadImage(HINST_THISDLL, MAKEINTRESOURCE(IDI_PINNED), IMAGE_ICON, 16, 16, LR_DEFAULTCOLOR); ASSERT(_hicoPinned);
::SendMessage(_hwndTree, WM_SETREDRAW, TRUE, 0); } else hr = _ChangePidlRoot(pidlRoot);
return hr;}
// set the root of the name space control.
//
// in:
// pidlRoot NULL means the desktop
// HIWORD 0 -> LOWORD == ID of special folder (CSIDL_* values)
//
// flags,
// pidlRoot, PIDL, NULL for desktop, or CSIDL for shell special folder
// iExpandDepth, how many levels to expand the tree
// pidlExpandTo NULL, or PIDL to expand to
//
BOOL CNscTree::_SetRoot(LPCITEMIDLIST pidlRoot, int iExpandDepth, LPCITEMIDLIST pidlExpandTo, NSSR_FLAGS flags){ _ReleasePidls(); // review chrisny: clean up this psr stuff.
// HIWORD/LOWORD stuff is to support pidl IDs instead of full pidl here
if (HIWORD(pidlRoot)) { _pidlRoot = ILClone(pidlRoot); } else { SHGetSpecialFolderLocation(NULL, LOWORD(pidlRoot) ? LOWORD(pidlRoot) : CSIDL_DESKTOP, &_pidlRoot); } if (_pidlRoot) { HTREEITEM htiRoot = TVI_ROOT; if (_mode == MODE_NORMAL) { // Since we'll be adding this into the tree, we need
// to clone it: We have a copy for the class, and we
// have one for the tree itself (Makes life easier so
// we don't have to special case TVI_ROOT).
htiRoot = _AddItemToTree(TVI_ROOT, _pidlRoot, 1, 0); if (htiRoot) { TreeView_SelectItem(_hwndTree, htiRoot); TraceMsg(TF_NSC, "NSCBand: Setting Root to \"Desktop\""); } else { htiRoot = TVI_ROOT; } }
BOOL fOrdered = _fOrdered; _LoadSF(htiRoot, _pidlRoot, &fOrdered); // load the roots (actual children of _pidlRoot.
// this is probably redundant since _LoadSF->_LoadOrder sets this
_fOrdered = BOOLIFY(fOrdered);
#ifdef DEBUG
TracePIDLAbs(_pidlRoot, TEXT("Setting Root to"));#endif // DEBUG
return TRUE; }
TraceMsg(DM_ERROR, "set root failed"); _ReleasePidls(); return FALSE;}
// cache the shell folder for a given tree item
// in:
// hti tree node to cache shell folder for. this my be
// NULL indicating the root item.
//
BOOL CNscTree::_CacheShellFolder(HTREEITEM hti){ // in the cache?
if ((hti != _htiCache) || (_psfCache == NULL)) { // cache miss, do the work
LPITEMIDLIST pidl; BOOL fRet = FALSE; _fpsfCacheIsTopLevel = FALSE; _ReleaseCachedShellFolder(); if ((hti == NULL) || (hti == TVI_ROOT)) { pidl = ILClone(_pidlRoot); } else { pidl = _GetFullIDList(hti); } if (pidl) { if (SUCCEEDED(IEBindToObject(pidl, &_psfCache))) { if (_pnscProxy) _pnscProxy->CacheItem(pidl); ASSERT(_psfCache); _htiCache = hti; // this is for the cache match
_fpsfCacheIsTopLevel = (hti == TVI_ROOT || hti == NULL); _psfCache->QueryInterface(IID_PPV_ARG(IShellFolder2, &_psf2Cache)); fRet = TRUE; } ILFree(pidl); } return fRet; } return TRUE;}
#define TVI_ROOTPARENT ((HTREEITEM)(ULONG_PTR)-0xF000)
// pidlItem is typically a relative pidl, except in the case of the root where
// it can be a fully qualified pidl
LPITEMIDLIST CNscTree::_CacheParentShellFolder(HTREEITEM hti, LPITEMIDLIST pidl){ // need parent shell folder of TVI_ROOT, special case for drop insert into root level of tree.
if (hti == TVI_ROOT || hti == NULL || (_mode == MODE_NORMAL && TreeView_GetParent(_hwndTree, hti) == NULL)) // If we have a null parent and we're a normal,
// than that's the same as root.
{ if (_htiCache != TVI_ROOTPARENT) { _ReleaseCachedShellFolder(); IEBindToParentFolder(_pidlRoot, &_psfCache, NULL);
if (!ILIsEmpty(_pidlRoot)) _htiCache = TVI_ROOTPARENT; } return ILFindLastID(_pidlRoot); }
if (_CacheShellFolder(TreeView_GetParent(_hwndTree, hti))) { if (pidl == NULL) { PORDERITEM poi = _GetTreeOrderItem(hti); if (!poi) return NULL;
pidl = poi->pidl; } return ILFindLastID(pidl); } return NULL;}
typedef struct _SORTPARAMS{ CNscTree *pnsc; IShellFolder *psf;} SORTPARAMS;
int CALLBACK CNscTree::_TreeCompare(LPARAM lParam1, LPARAM lParam2, LPARAM lParamSort){ SORTPARAMS *pSortParams = (SORTPARAMS *)lParamSort; PORDERITEM poi1 = GetPoi(lParam1), poi2 = GetPoi(lParam2); HRESULT hr = pSortParams->pnsc->_CompareIDs(pSortParams->psf, poi1->pidl, poi2->pidl); return (short)SCODE_CODE(hr);}
int CALLBACK CNscTree::_TreeOrder(LPARAM lParam1, LPARAM lParam2, LPARAM lParamSort){ HRESULT hr; PORDERITEM poi1 = GetPoi(lParam1), poi2 = GetPoi(lParam2); ASSERT((poi1 != NULL) && (poi1 != NULL)); if (poi1->nOrder == poi2->nOrder) hr = 0; else // do unsigned compare so -1 goes to end of list
hr = (poi1->nOrder < poi2->nOrder ? -1 : 1); return (short)SCODE_CODE(hr);}// review chrisny: instead of sort, insert items on the fly.
void CNscTree::_Sort(HTREEITEM hti, IShellFolder *psf){ TV_SORTCB scb; SORTPARAMS SortParams = {this, psf}; BOOL fOrdering = _IsOrdered(hti);#ifdef DEBUG
TraceHTREE(hti, TEXT("Sorting"));#endif
scb.hParent = hti; scb.lpfnCompare = !fOrdering ? _TreeCompare : _TreeOrder; scb.lParam = (LPARAM)&SortParams; TreeView_SortChildrenCB(_hwndTree, &scb, FALSE);}
BOOL CNscTree::_IsOrdered(HTREEITEM htiRoot){ if ((htiRoot == TVI_ROOT) || (htiRoot == NULL)) return _fOrdered; else { PORDERITEM poi = _GetTreeOrderItem(htiRoot); if (poi) { // LParam Is a Boolean:
// TRUE: It has an order.
// FALSE: It does not have an order.
// Question: Where is that order stored? _hdpaOrder?
return poi->lParam; } } return FALSE;}
//helper function to init _hdpaOrd
//MUST be followed by a call to _FreeOrderList
HRESULT CNscTree::_PopulateOrderList(HTREEITEM htiRoot){ int i = 0; HTREEITEM hti = NULL;#ifdef DEBUG
TraceHTREE(htiRoot, TEXT("Populating Order List from tree node"));#endif
if (_hdpaOrd) DPA_Destroy(_hdpaOrd); _hdpaOrd = DPA_Create(4); if (_hdpaOrd == NULL) return E_FAIL; for (hti = TreeView_GetChild(_hwndTree, htiRoot); hti; hti = TreeView_GetNextSibling(_hwndTree, hti)) { PORDERITEM poi = _GetTreeOrderItem(hti); if (poi) { poi->nOrder = i; // reset the positions of the nodes.
DPA_SetPtr(_hdpaOrd, i++, (void *)poi); } } //set the root's ordered flag
if (htiRoot == TVI_ROOT) { _fOrdered = TRUE; } else { PORDERITEM poi = _GetTreeOrderItem(htiRoot); if (poi) { poi->lParam = TRUE; } } return S_OK;}
//helper function to free _hdpaOrd
//MUST be preceded by a call to _PopulateOrderList
void CNscTree::_FreeOrderList(HTREEITEM htiRoot){ ASSERT(_hdpaOrd);#ifdef DEBUG
TraceHTREE(htiRoot, TEXT("Freeing OrderList"));#endif
_ReleaseCachedShellFolder(); // Persist the new order out to the registry
LPITEMIDLIST pidl = _GetFullIDList(htiRoot); if (pidl) { IStream* pstm = GetOrderStream(pidl, STGM_WRITE | STGM_CREATE); if (pstm) { if (_CacheShellFolder(htiRoot)) {#ifdef DEBUG
for (int i=0; i<DPA_GetPtrCount(_hdpaOrd); i++) { PORDERITEM poi = (PORDERITEM)DPA_GetPtr(_hdpaOrd, i); if (poi) { ASSERTMSG(poi->nOrder >= 0, "nsc saving bogus order list nOrder (%d), get reljai", poi->nOrder); } }#endif
OrderList_SaveToStream(pstm, _hdpaOrd, _psfCache); pstm->Release(); // Notify everyone that the order changed
SHSendChangeMenuNotify(this, SHCNEE_ORDERCHANGED, SHCNF_FLUSH, _pidlRoot); _dwOrderSig++;
TraceMsg(TF_NSC, "NSCBand: Sent SHCNE_EXTENDED_EVENT : SHCNEE_ORDERCHANGED"); // Remove this notify message immediately (so _fDropping is set
// and we'll ignore this event in above OnChange method)
//
// _FlushNotifyMessages(_hwndTree);
} else pstm->Release(); } ILFree(pidl); } DPA_Destroy(_hdpaOrd); _hdpaOrd = NULL;}
//removes any order the user has set and goes back to alphabetical sort
HRESULT CNscTree::ResetSort(void){ HRESULT hr = S_OK;#ifdef UNUSED
ASSERT(_psfCache); ASSERT(_pidlRoot); int cAdded = 0; IStream* pstm = NULL; _fWeChangedOrder = TRUE; if (FAILED(hr = _PopulateOrderList(TVI_ROOT))) return hr; pstm = OpenPidlOrderStream((LPCITEMIDLIST)CSIDL_FAVORITES, _pidlRoot, REG_SUBKEY_FAVORITESA, STGM_CREATE | STGM_WRITE); _CacheShellFolder(TVI_ROOT); if (pstm == NULL || _psfCache == NULL) { ATOMICRELEASE(pstm); _FreeOrderList(TVI_ROOT); return S_OK; } _fOrdered = FALSE; ORDERINFO oinfo; oinfo.psf = _psfCache; (oinfo.psf)->AddRef(); oinfo.dwSortBy = OI_SORTBYNAME; DPA_Sort(_hdpaOrd, OrderItem_Compare,(LPARAM)&oinfo); ATOMICRELEASE(oinfo.psf); OrderList_Reorder(_hdpaOrd); OrderList_SaveToStream(pstm, _hdpaOrd, _psfCache); ATOMICRELEASE(pstm); _FreeOrderList(TVI_ROOT); Refresh(); _fWeChangedOrder = FALSE;#endif
return hr;}
void CNscTree::MoveItemUpOrDown(BOOL fUp){ HTREEITEM htiSelected = TreeView_GetSelection(_hwndTree); HTREEITEM htiToSwap = (fUp) ? TreeView_GetPrevSibling(_hwndTree, htiSelected) : TreeView_GetNextSibling(_hwndTree, htiSelected); HTREEITEM htiParent = TreeView_GetParent(_hwndTree, htiSelected); if (htiParent == NULL) htiParent = TVI_ROOT; ASSERT(htiSelected); _fWeChangedOrder = TRUE; if (FAILED(_PopulateOrderList(htiParent))) return; if (htiSelected && htiToSwap) { PORDERITEM poiSelected = _GetTreeOrderItem(htiSelected); PORDERITEM poiToSwap = _GetTreeOrderItem(htiToSwap); if (poiSelected && poiToSwap) { int iOrder = poiSelected->nOrder; poiSelected->nOrder = poiToSwap->nOrder; poiToSwap->nOrder = iOrder; } _CacheShellFolder(htiParent); if (_psfCache) _Sort(htiParent, _psfCache); } TreeView_SelectItem(_hwndTree, htiSelected); _FreeOrderList(htiParent); _fWeChangedOrder = FALSE;}
// filter function... let clients filter what gets added here
BOOL CNscTree::_ShouldAdd(LPCITEMIDLIST pidl){ // send notify up to parent to let them filter
return TRUE;}
BOOL CNscTree::_OnItemExpandingMsg(NM_TREEVIEW *pnm){ HCURSOR hCursorOld = SetCursor(LoadCursor(NULL, IDC_WAIT)); BOOL bRet = _OnItemExpanding(pnm->itemNew.hItem, pnm->action, (pnm->itemNew.state & TVIS_EXPANDEDONCE), (pnm->itemNew.state & TVIS_EXPANDPARTIAL));
SetCursor(hCursorOld);
return bRet;}
//
// The NSC item is expandable if it is a regular folder and it's not one
// of those funky non-expandable channel folders.
//
BOOL CNscTree::_IsExpandable(HTREEITEM hti){ BOOL fExpandable = FALSE; LPCITEMIDLIST pidlItem = _CacheParentShellFolder(hti, NULL); if (pidlItem) { // make sure item is actually a folder and not a non-expandable channel folder
// except: in org favs, never expand channel folders
ULONG ulAttr = SFGAO_FOLDER; LPITEMIDLIST pidlTarget = NULL; if (SUCCEEDED(_psfCache->GetAttributesOf(1, &pidlItem, &ulAttr)) && (ulAttr & SFGAO_FOLDER) && !(SUCCEEDED(SHGetNavigateTarget(_psfCache, pidlItem, &pidlTarget, &ulAttr)) && ((_mode & MODE_CONTROL) ? TRUE : !IsExpandableChannelFolder(_psfCache, pidlItem)))) { fExpandable = TRUE; } ILFree(pidlTarget); } return fExpandable;}
BOOL CNscTree::_OnItemExpanding(HTREEITEM htiToActivate, UINT action, BOOL fExpandedOnce, BOOL fIsExpandPartial){ BOOL fReturn = FALSE; // false means let treeview proceed
if (action != TVE_EXPAND) { htiToActivate = TreeView_GetParent(_hwndTree, htiToActivate); } else if (fExpandedOnce && !fIsExpandPartial) { // Do nothing
} else { if (_IsExpandable(htiToActivate)) { LPITEMIDLIST pidlParent = _GetFullIDList(htiToActivate); if (pidlParent) { BOOL fOrdered; // If we were previously partially expanded, then we need to do a full expand
_LoadSF(htiToActivate, pidlParent, &fOrdered); ILFree(pidlParent); } }
// do not remove + on downlevel because inserting items would not expand htiToActivate
// instead we will remove the plus if nothing gets added
if (!fIsExpandPartial && MODE_NORMAL == _mode && IsOS(OS_WHISTLERORGREATER)) { // If we did not add anything we should update this item to let
// the user know something happened.
TreeView_SetChildren(_hwndTree, htiToActivate, NSC_CHILDREN_REMOVE); }
// keep the old behavior for favorites/history/...
if (MODE_NORMAL == _mode) { // cannot let treeview proceed with expansion, nothing will be added
// until background thread is done enumerating
fReturn = TRUE; } } _UpdateActiveBorder(htiToActivate); return fReturn; }
HTREEITEM CNscTree::_FindFromRoot(HTREEITEM htiRoot, LPCITEMIDLIST pidl){ HTREEITEM htiRet = NULL; LPITEMIDLIST pidlParent, pidlChild; BOOL fFreePidlParent = FALSE;#ifdef DEBUG
TracePIDLAbs(pidl, TEXT("Finding this pidl")); TraceHTREE(htiRoot, TEXT("from this root"));#endif
if (!htiRoot) { // When in "Normal" mode, we need to use the first child, not the root
// in order to calculate, because there is no "Invisible" root. On the
// other hand, History and Favorites have an invisible root: Their
// parent folder, so they need this fudge.
htiRoot = (MODE_NORMAL == _mode) ? TreeView_GetChild(_hwndTree, 0) : TVI_ROOT; pidlParent = _pidlRoot; // the invisible root.
} else { pidlParent = _GetFullIDList(htiRoot); fFreePidlParent = TRUE; } if (pidlParent == NULL) return NULL; if (ILIsEqual(pidlParent, pidl)) { if (fFreePidlParent) ILFree(pidlParent); return htiRoot; } pidlChild = ILFindChild(pidlParent, pidl); if (pidlChild == NULL) { if (fFreePidlParent) ILFree(pidlParent); return NULL; // not root match, no hti
} // root match, carry on . . .
// Are we rooted under the Desktop (i.e. Empty pidl or ILIsEmpty(_pidlRoot))
IShellFolder *psf = NULL; HRESULT hr = IEBindToObject(pidlParent, &psf);
if (FAILED(hr)) { if (fFreePidlParent) ILFree(pidlParent); return htiRet; } while (htiRoot && psf) { LPITEMIDLIST pidlItem = ILCloneFirst(pidlChild); if (!pidlItem) break; htiRoot = _FindChild(psf, htiRoot, pidlItem); IShellFolder *psfNext = NULL; hr = psf->BindToObject(pidlItem, NULL, IID_PPV_ARG(IShellFolder, &psfNext)); ILFree(pidlItem); if (!htiRoot) { ATOMICRELEASE(psfNext); break; } psf->Release(); psf = psfNext; pidlChild = _ILNext(pidlChild); // if we're down to an empty pidl, we've found it!
if (ILIsEmpty(pidlChild)) { htiRet = htiRoot; break; } if (FAILED(hr)) { ASSERT(psfNext == NULL); break; } } if (psf) psf->Release(); if (fFreePidlParent) ILFree(pidlParent);#ifdef DEBUG
TraceHTREE(htiRet, TEXT("Found at"));#endif
return htiRet;}
BOOL CNscTree::_FIsItem(IShellFolder *psf, LPCITEMIDLIST pidl, HTREEITEM hti){ PORDERITEM poi = _GetTreeOrderItem(hti); return poi && poi->pidl && psf->CompareIDs(0, poi->pidl, pidl) == 0;}
HRESULT CNscTree::_OnSHNotifyDelete(LPCITEMIDLIST pidl, int *piPosDeleted, HTREEITEM *phtiParent){ HRESULT hr = S_FALSE; HTREEITEM hti = _FindFromRoot(NULL, pidl); if (hti == TVI_ROOT) return E_INVALIDARG; // invalid arg, DELETION OF TVI_ROOT
// need to clear _pidlDrag if the one being deleted is _pidlDrag.
// handles case where dragging into another folder from within or dragging out.
if (_pidlDrag) { LPCITEMIDLIST pidltst = _CacheParentShellFolder(hti, NULL); if (pidltst) { if (!_psfCache->CompareIDs(0, pidltst, _pidlDrag)) _pidlDrag = NULL; } }
if (pidl && (hti != NULL)) { _fIgnoreNextItemExpanding = TRUE;
HTREEITEM htiParent = TreeView_GetParent(_hwndTree, hti); if (phtiParent) *phtiParent = htiParent;
//if caller wants the position of the deleted item, don't reorder the other items
if (piPosDeleted) { PORDERITEM poi = _GetTreeOrderItem(hti); if (poi) { *piPosDeleted = poi->nOrder; hr = S_OK; } TreeView_DeleteItem(_hwndTree, hti); } else { if (htiParent == NULL) htiParent = TVI_ROOT; if (TreeView_DeleteItem(_hwndTree, hti)) { _ReorderChildren(htiParent); hr = S_OK; } }
// Update the + next to the parent folder. Note that History and Favorites
// set ALL of their items to be Folder items, so this is not needed for
// favorites.
// do this only on downlevel as comctl v6 takes care of pluses
if (_mode == MODE_NORMAL && !IsOS(OS_WHISTLERORGREATER)) { LPCITEMIDLIST pidl = _CacheParentShellFolder(htiParent, NULL); if (pidl && !ILIsEmpty(pidl)) { DWORD dwAttrib = SFGAO_HASSUBFOLDER; if (SUCCEEDED(_psfCache->GetAttributesOf(1, &pidl, &dwAttrib)) && !(dwAttrib & SFGAO_HASSUBFOLDER)) { TV_ITEM tvi; tvi.mask = TVIF_CHILDREN | TVIF_HANDLE; tvi.hItem = htiParent; tvi.cChildren = 0; TreeView_SetItem(_hwndTree, &tvi); } } }
_fIgnoreNextItemExpanding = FALSE;
if (hti == _htiCut) { _htiCut = NULL; _TreeNukeCutState(); }
} return hr;}
BOOL CNscTree::_IsItemNameInTree(LPCITEMIDLIST pidl){ BOOL fReturn = FALSE; HTREEITEM hti = _FindFromRoot(NULL, pidl); if (hti) { WCHAR szTree[MAX_PATH]; TV_ITEM tvi; tvi.mask = TVIF_TEXT; tvi.hItem = hti; tvi.pszText = szTree; tvi.cchTextMax = ARRAYSIZE(szTree); if (TreeView_GetItem(_hwndTree, &tvi)) { IShellFolder* psf; LPCITEMIDLIST pidlChild; if (SUCCEEDED(_ParentFromItem(pidl, &psf, &pidlChild))) { WCHAR szName[MAX_PATH]; if (SUCCEEDED(DisplayNameOf(psf, pidlChild, SHGDN_INFOLDER, szName, ARRAYSIZE(szName)))) { fReturn = (StrCmp(szName, szTree) == 0); } psf->Release(); } } }
return fReturn;}//
// Attempt to perform a rename-in-place. Returns
//
// S_OK - rename succeeded
// S_FALSE - original object not found
// error - rename failed
//
HRESULT CNscTree::_OnSHNotifyRename(LPCITEMIDLIST pidl, LPCITEMIDLIST pidlNew){ HTREEITEM hti, htiParent = NULL; HRESULT hr = S_FALSE;
//
// If the source and destination belong to the same folder, then
// it's an in-folder rename.
//
LPITEMIDLIST pidlParent = ILCloneParent(pidl); LPITEMIDLIST pidlNewParent = ILCloneParent(pidlNew);
if (pidlParent && pidlNewParent && IEILIsEqual(pidlParent, pidlNewParent, TRUE) && (hti = _FindFromRoot(NULL, pidl))) { // to avoid reentering problems
if (!_IsItemNameInTree(pidlNew)) { HTREEITEM htiSelected = TreeView_GetSelection(_hwndTree);
::SendMessage(_hwndTree, WM_SETREDRAW, FALSE, 0); if ((_OnSHNotifyDelete(pidl, NULL, &htiParent) != E_INVALIDARG) // invalid arg indication of bogus rename, do not continue.
&& (_OnSHNotifyCreate(pidlNew, DEFAULTORDERPOSITION, htiParent) == S_OK)) { if (hti == htiSelected) { hti = _FindFromRoot(NULL, pidlNew); _SelectNoExpand(_hwndTree, hti); // do not expand this guy
} // NTRAID 89444: If we renamed the item the user is sitting on,
// SHBrowseForFolder doesn't realize it and doesn't update the
// edit control.
hr = S_OK; } ::SendMessage(_hwndTree, WM_SETREDRAW, TRUE, 0); } } // rename can be a move, so do not depend on the delete happening successfully.
else if ((_OnSHNotifyDelete(pidl, NULL, &htiParent) != E_INVALIDARG) // invalid arg indication of bogus rename, do not continue.
&& (_OnSHNotifyCreate(pidlNew, DEFAULTORDERPOSITION, htiParent) == S_OK)) { hr = S_OK; }
ILFree(pidlParent); ILFree(pidlNewParent);
// if user created a new folder and changed the default name but is still in edit mode in defview
// and then clicked on the + of the parent folder we start enumerating the folder (or stealing items
// from defview) before defview had time to change the name of the new folder. The result is
// we enumerate the old name and before we transfer it to the foreground thread shell change notify rename
// kicks in and we change the item already in the tree. We then merge the items from the enumeration
// which results in extra folder with the old name.
// to avoid this we force the reenumeration...
_dwOrderSig++;
return hr; }
//
// To update an item, just find it and invalidate it.
//
void CNscTree::_OnSHNotifyUpdateItem(LPCITEMIDLIST pidl, LPITEMIDLIST pidlReal){ HTREEITEM hti = _FindFromRoot(NULL, pidl); if (hti) { _TreeInvalidateItemInfo(hti, TVIF_TEXT);
if (pidlReal && hti != TVI_ROOT) { PORDERITEM poi = _GetTreeOrderItem(hti); _AssignPidl(poi, pidlReal); } }}
LPITEMIDLIST CNscTree::_FindHighestDeadItem(LPCITEMIDLIST pidl){ LPITEMIDLIST pidlRet = NULL;
LPITEMIDLIST pidlParent = ILCloneParent(pidl); if (pidlParent) { IShellFolder* psf; LPCITEMIDLIST pidlChild; if (SUCCEEDED(_ParentFromItem(pidlParent, &psf, &pidlChild))) { DWORD dwAttrib = SFGAO_VALIDATE; if (FAILED(psf->GetAttributesOf(1, (LPCITEMIDLIST*)&pidlChild, &dwAttrib))) { pidlRet = _FindHighestDeadItem(pidlParent); }
psf->Release(); }
ILFree(pidlParent); } return pidlRet ? pidlRet : ILClone(pidl);}
void CNscTree::_RemoveDeadBranch(LPCITEMIDLIST pidl){ LPITEMIDLIST pidlTop = _FindHighestDeadItem(pidl);
if (pidlTop) { HTREEITEM hti = _FindFromRoot(NULL, pidlTop); if (hti) { if (!TreeView_DeleteItem(_hwndTree, hti)) { ASSERTMSG(FALSE, "CNscTree::_OnSHNotifyUpdateDir: DeleteItem failed in tree control"); // somethings hosed in the tree.
} }
ILFree(pidlTop); }}
HRESULT CNscTree::_OnSHNotifyUpdateDir(LPCITEMIDLIST pidl){ HRESULT hr = S_FALSE; HTREEITEM hti = _FindFromRoot(NULL, pidl); if (hti) { // folder exists in tree refresh folder now if had been loaded by expansion.
IShellFolder* psf = NULL; LPCITEMIDLIST pidlChild; if (SUCCEEDED(_ParentFromItem(pidl, &psf, &pidlChild))) { LPITEMIDLIST pidlReal; DWORD dwAttrib = SFGAO_VALIDATE; // pidlChild is read-only, so we start
// off our double validation with getting the "real"
// pidl which will fall back to a clone
if (SUCCEEDED(_IdlRealFromIdlSimple(psf, pidlChild, &pidlReal)) && SUCCEEDED(psf->GetAttributesOf(1, (LPCITEMIDLIST *)&pidlReal, &dwAttrib))) { TV_ITEM tvi; tvi.mask = TVIF_STATE; tvi.stateMask = (TVIS_EXPANDEDONCE | TVIS_EXPANDED | TVIS_EXPANDPARTIAL); tvi.hItem = (HTREEITEM)hti; if (hti != TVI_ROOT) { if (!TreeView_GetItem(_hwndTree, &tvi)) tvi.state = 0; }
if (hti == TVI_ROOT || tvi.state & TVIS_EXPANDEDONCE) { hr = _UpdateDir(hti, TRUE); } else if (!(tvi.state & TVIS_EXPANDEDONCE)) { TreeView_SetChildren(_hwndTree, hti, NSC_CHILDREN_CALLBACK); }
if (hti != TVI_ROOT) { PORDERITEM poi = _GetTreeOrderItem(hti); _AssignPidl(poi, pidlReal); }
ILFree(pidlReal); } else { _RemoveDeadBranch(pidl); }
psf->Release(); } } return hr;}
HRESULT CNscTree::_GetEnumFlags(IShellFolder *psf, LPCITEMIDLIST pidlFolder, DWORD *pgrfFlags, HWND *phwnd){ HWND hwnd = NULL; DWORD grfFlags = _grfFlags;
if (_pFilter) { LPITEMIDLIST pidlFree = NULL; if (pidlFolder == NULL) { SHGetIDListFromUnk(psf, &pidlFree); pidlFolder = pidlFree; } _pFilter->GetEnumFlags(psf, pidlFolder, &hwnd, &grfFlags);
ILFree(pidlFree); } *pgrfFlags = grfFlags; if (phwnd) *phwnd = hwnd; return S_OK;}
HRESULT CNscTree::_GetEnum(IShellFolder *psf, LPCITEMIDLIST pidlFolder, IEnumIDList **ppenum){ HWND hwnd = NULL; DWORD grfFlags;
_GetEnumFlags(psf, pidlFolder, &grfFlags, &hwnd);
// get the enumerator and add the child items for any given pidl
// REARCHITECT: right now, we don't detect if we actually are dealing with a folder (shell32.dll
// allows you to create an IShellfolder to a non folder object, so we get bad
// dialogs, by not passing the hwnd, we don't get the dialogs. we should fix this better. by caching
// in the tree whether it is a folder or not.
return psf->EnumObjects(/* _fAutoExpanding ?*/ hwnd, grfFlags, ppenum);}
BOOL CNscTree::_ShouldShow(IShellFolder* psf, LPCITEMIDLIST pidlFolder, LPCITEMIDLIST pidlItem){ BOOL bRet = TRUE; if (_pFilter) { LPITEMIDLIST pidlFree = NULL; if (pidlFolder == NULL) { SHGetIDListFromUnk(psf, &pidlFree); pidlFolder = pidlFree; } bRet = (S_OK == _pFilter->ShouldShow(psf, pidlFolder, pidlItem));
if (pidlFree) ILFree(pidlFree); } return bRet;}
// updates existing dir only. Not new load.
HRESULT CNscTree::_UpdateDir(HTREEITEM hti, BOOL fUpdatePidls){ HRESULT hr = S_FALSE; LPITEMIDLIST pidlParent = _GetFullIDList(hti); if (pidlParent) { BOOL fOrdered; _fUpdate = TRUE; hr = _StartBackgroundEnum(hti, pidlParent, &fOrdered, fUpdatePidls); _fUpdate = FALSE; ILFree(pidlParent); } return hr;}
int CNscTree::_TreeItemIndexInHDPA(HDPA hdpa, IShellFolder *psfParent, HTREEITEM hti, int iReverseStart){ int iIndex = -1; ASSERT(hti);
PORDERITEM poi = _GetTreeOrderItem(hti); if (poi) { int celt = DPA_GetPtrCount(hdpa); ASSERT(iReverseStart <= celt && iReverseStart >= 0); for (int i = iReverseStart-1; i >= 0; i--) { PORDERITEM poi2 = (PORDERITEM)DPA_GetPtr(hdpa, i); if (poi2) { if (_psfCache->CompareIDs(0, poi->pidl, poi2->pidl) == 0) { iIndex = i; break; } } } } return iIndex;}
HRESULT CNscTree::_Expand(LPCITEMIDLIST pidl, int iDepth){ HRESULT hr = E_FAIL; HTREEITEM hti = _ExpandToItem(pidl); if (hti) { hr = _ExpandNode(hti, TVE_EXPAND, iDepth); // tvi_root is not a pointer and treeview doesn't check for special
// values so don't select root to prevent fault
if (hti != TVI_ROOT) _SelectNoExpand(_hwndTree, hti); }
return hr;}
HRESULT CNscTree::_ExpandNode(HTREEITEM htiParent, int iCode, int iDepth){ // nothing to expand
if (!iDepth) return S_OK;
_fInExpand = TRUE; _uDepth = (UINT)iDepth-1; HRESULT hr = TreeView_Expand(_hwndTree, htiParent, iCode) ? S_OK : E_FAIL; _uDepth = 0; _fInExpand = FALSE;
return hr;}
HTREEITEM CNscTree::_FindChild(IShellFolder *psf, HTREEITEM htiParent, LPCITEMIDLIST pidlChild){ HTREEITEM hti; for (hti = TreeView_GetChild(_hwndTree, htiParent); hti; hti = TreeView_GetNextSibling(_hwndTree, hti)) { if (_FIsItem(psf, pidlChild, hti)) break; } return hti;}
void CNscTree::_ReorderChildren(HTREEITEM htiParent){ int i = 0; HTREEITEM hti; for (hti = TreeView_GetChild(_hwndTree, htiParent); hti; hti = TreeView_GetNextSibling(_hwndTree, hti)) { PORDERITEM poi = _GetTreeOrderItem(hti); if (poi) { poi->nOrder = i++; // reset the positions of the nodes.
} }}
HRESULT CNscTree::_InsertChild(HTREEITEM htiParent, IShellFolder *psfParent, LPCITEMIDLIST pidlChild, BOOL fExpand, BOOL fSimpleToRealIDL, int iPosition, HTREEITEM *phti){ LPITEMIDLIST pidlReal; HRESULT hr; HTREEITEM htiNew = NULL; if (fSimpleToRealIDL) { hr = _IdlRealFromIdlSimple(psfParent, pidlChild, &pidlReal); } else { hr = SHILClone(pidlChild, &pidlReal); }
// review chrisny: no sort here, use compareitems to insert item instead.
if (SUCCEEDED(hr)) { HTREEITEM htiAfter = TVI_LAST; BOOL fOrdered = _IsOrdered(htiParent); if (iPosition != DEFAULTORDERPOSITION || !fOrdered) { if (iPosition == 0) htiAfter = TVI_FIRST; else { if (!fOrdered) htiAfter = TVI_FIRST; for (HTREEITEM hti = TreeView_GetChild(_hwndTree, htiParent); hti; hti = TreeView_GetNextSibling(_hwndTree, hti)) { PORDERITEM poi = _GetTreeOrderItem(hti); if (poi) { if (fOrdered) { if (poi->nOrder == iPosition-1) { htiAfter = hti;#ifdef DEBUG
TraceHTREE(htiAfter, TEXT("Inserting After"));#endif
break; } } else { if ((short)SCODE_CODE(_CompareIDs(psfParent, pidlReal, poi->pidl)) > 0) htiAfter = hti; else break; } } } } }
if ((_FindChild(psfParent, htiParent, pidlReal) == NULL)) { int cChildren = 1; if (MODE_NORMAL == _mode) { DWORD dwAttrib = SFGAO_FOLDER | SFGAO_STREAM; hr = psfParent->GetAttributesOf(1, (LPCITEMIDLIST*)&pidlReal, &dwAttrib); if (SUCCEEDED(hr)) cChildren = _GetChildren(psfParent, pidlReal, dwAttrib); }
if (SUCCEEDED(hr)) { htiNew = _AddItemToTree(htiParent, pidlReal, cChildren, iPosition, htiAfter, TRUE, _IsMarked(htiParent)); if (htiNew) { _ReorderChildren(htiParent);
if (fExpand) _ExpandNode(htiParent, TVE_EXPAND, 1); // force expansion to show new item.
//ensure the item is visible after a rename (or external drop, but that should always be a noop)
if (iPosition != DEFAULTORDERPOSITION) TreeView_EnsureVisible(_hwndTree, htiNew);
hr = S_OK; } else { hr = S_FALSE; } } } ILFree(pidlReal); } if (phti) *phti = htiNew; return hr;}
HRESULT CheckForExpandOnce(HWND hwndTree, HTREEITEM hti){ // Root node always expanded.
if (hti == TVI_ROOT) return S_OK; TV_ITEM tvi; tvi.mask = TVIF_STATE | TVIF_CHILDREN; tvi.stateMask = (TVIS_EXPANDEDONCE | TVIS_EXPANDED | TVIS_EXPANDPARTIAL); tvi.hItem = (HTREEITEM)hti; if (TreeView_GetItem(hwndTree, &tvi)) { if (!(tvi.state & TVIS_EXPANDEDONCE) && (tvi.cChildren == 0)) { TreeView_SetChildren(hwndTree, hti, NSC_CHILDREN_FORCE); } } return S_OK;}
HRESULT _InvokeCommandThunk(IContextMenu * pcm, HWND hwndParent){ HRESULT hr;
if (g_fRunningOnNT) { CMINVOKECOMMANDINFOEX ici = {0};
ici.cbSize = sizeof(ici); ici.hwnd = hwndParent; ici.nShow = SW_NORMAL; ici.lpVerb = CMDSTR_NEWFOLDERA; ici.fMask = CMIC_MASK_UNICODE | CMIC_MASK_FLAG_NO_UI; ici.lpVerbW = CMDSTR_NEWFOLDERW;
hr = pcm->InvokeCommand((LPCMINVOKECOMMANDINFO)(&ici)); } else { CMINVOKECOMMANDINFO ici = {0};
ici.cbSize = sizeof(ici); ici.hwnd = hwndParent; ici.nShow = SW_NORMAL; ici.lpVerb = CMDSTR_NEWFOLDERA; ici.fMask = CMIC_MASK_FLAG_NO_UI; // Win95 doesn't work with CMIC_MASK_UNICODE & CMDSTR_NEWFOLDERW
hr = pcm->InvokeCommand((LPCMINVOKECOMMANDINFO)(&ici)); }
return hr;}
BOOL CNscTree::_IsItemExpanded(HTREEITEM hti){ // if it's not open, then use it's parent
TV_ITEM tvi; tvi.mask = TVIF_STATE; tvi.stateMask = TVIS_EXPANDED; tvi.hItem = (HTREEITEM)hti; return (TreeView_GetItem(_hwndTree, &tvi) && (tvi.state & TVIS_EXPANDED));}
HRESULT CNscTree::CreateNewFolder(HTREEITEM hti){ HRESULT hr = E_FAIL;
if (hti) { // If the user selected a folder item (file), we need
// to bind set the cache to the parent folder.
LPITEMIDLIST pidl = _GetFullIDList(hti); if (pidl) { ULONG ulAttr = SFGAO_FOLDER; // make sure item is actually a folder
if (SUCCEEDED(IEGetAttributesOf(pidl, &ulAttr))) { HTREEITEM htiTarget; // tree item in which new folder is created
// Is it a folder?
if (ulAttr & SFGAO_FOLDER) { // non-Normal modes (!MODE_NORMAL) wants the new folder to be created as
// a sibling instead of as a child of the selected folder if it's
// closed. I assume their reasoning is that closed folders are often
// selected by accident/default because these views are mostly 1 level.
// We don't want this functionality for the normal mode.
if ((MODE_NORMAL != _mode) && !_IsItemExpanded(hti)) { htiTarget = TreeView_GetParent(_hwndTree, hti); // yes, so fine.
} else { htiTarget = hti; } } else { htiTarget = TreeView_GetParent(_hwndTree, hti); // No, so bind to the parent.
}
if (NULL == htiTarget) { htiTarget = TVI_ROOT; // should be synonymous
} // ensure that this pidl has MenuOrder information (see IE55 #94868)
if (!_IsOrdered(htiTarget) && _mode != MODE_NORMAL) { // its not "ordered" (doesn't have reg key persisting order of folder)
// then create make it ordered
if (SUCCEEDED(_PopulateOrderList(htiTarget))) { ASSERT(_hdpaOrd); _FreeOrderList(htiTarget); } }
_CacheShellFolder(htiTarget); }
ILFree(pidl); } }
// If no item is selected, we should still create a folder in whatever
// the user most recently dinked with. This is important if the
// Favorites folder is completely empty.
if (_psfCache) { IContextMenu *pcm; if (GetUIVersion() < 5) { IShellView *psv; hr = _psfCache->CreateViewObject(_hwndTree, IID_PPV_ARG(IShellView, &psv)); if (SUCCEEDED(hr)) { hr = psv->GetItemObject(SVGIO_BACKGROUND, IID_PPV_ARG(IContextMenu, &pcm)); if (SUCCEEDED(hr)) { IUnknown_SetSite(pcm, psv); } psv->Release(); } } else { hr = CoCreateInstance(CLSID_NewMenu, NULL, CLSCTX_INPROC_SERVER, IID_PPV_ARG(IContextMenu, &pcm)); } if (SUCCEEDED(hr)) { HMENU hmContext = CreatePopupMenu(); hr = pcm->QueryContextMenu(hmContext, 0, 1, 256, 0); if (SUCCEEDED(hr)) { _pidlNewFolderParent = _GetFullIDList(_htiCache);
IShellExtInit *psei; if (SUCCEEDED(pcm->QueryInterface(IID_PPV_ARG(IShellExtInit, &psei)))) { psei->Initialize(_pidlNewFolderParent, NULL, NULL); psei->Release(); } hr = _InvokeCommandThunk(pcm, _hwndParent); SHChangeNotifyHandleEvents(); // Flush the events to it doesn't take forever to shift into edit mode
Pidl_Set(&_pidlNewFolderParent, NULL); }
IUnknown_SetSite(pcm, NULL); DestroyMenu(hmContext); pcm->Release(); } }
return hr;}
HRESULT CNscTree::_EnterNewFolderEditMode(LPCITEMIDLIST pidlNewFolder){ HTREEITEM htiNewFolder = _FindFromRoot(NULL, pidlNewFolder); LPITEMIDLIST pidlParent = NULL; // 1. Flush all the notifications.
// 2. Find the new dir in the tree.
// Expand the parent if needed.
// 3. Put it into the rename mode.
EVAL(SUCCEEDED(SetSelectedItem(pidlNewFolder, FALSE, FALSE, 0)));
if (htiNewFolder == NULL) { pidlParent = ILClone(pidlNewFolder); ILRemoveLastID(pidlParent); HTREEITEM htiParent = _FindFromRoot(NULL, pidlParent);
// We are looking for the parent folder. If this is NOT
// the root, then we need to expand it to show it.
// NOTE: If it is root, Tree view will
// try and deref TVI_ROOT and faults.
if (htiParent != TVI_ROOT) { // Try expanding the parent and finding again.
CheckForExpandOnce(_hwndTree, htiParent); TreeView_SelectItem(_hwndTree, htiParent); _ExpandNode(htiParent, TVE_EXPAND, 1); } htiNewFolder = _FindFromRoot(NULL, pidlNewFolder); }
if (htiNewFolder == NULL) { // Something went very wrong here. We are not able to find newly added node.
// One last try after refreshing the entire tree. (slow)
// May be we didn't get notification.
Refresh();
htiNewFolder = _FindFromRoot(NULL, pidlNewFolder); if (htiNewFolder && (htiNewFolder != TVI_ROOT)) { HTREEITEM htiParent = _FindFromRoot(NULL, pidlParent);
// We are looking for the parent folder. If this is NOT
// the root, then we need to expand it to show it.
// NOTE: If it is root, Tree view will
// try and deref TVI_ROOT and faults.
if (htiParent != TVI_ROOT) { CheckForExpandOnce(_hwndTree, htiParent); TreeView_SelectItem(_hwndTree, htiParent); _ExpandNode(htiParent, TVE_EXPAND, 1); } }
htiNewFolder = _FindFromRoot(NULL, pidlNewFolder); }
// Put Edit label on the item for possible renaming by user.
if (htiNewFolder) { _fOkToRename = TRUE; //otherwise label editing is canceled
TreeView_EditLabel(_hwndTree, htiNewFolder); _fOkToRename = FALSE; }
if (pidlParent) ILFree(pidlParent);
return S_OK;}
HRESULT CNscTree::_OnSHNotifyCreate(LPCITEMIDLIST pidl, int iPosition, HTREEITEM htiParent){ HRESULT hr = S_OK; HTREEITEM hti = NULL; if (ILIsParent(_pidlRoot, pidl, FALSE)) { LPITEMIDLIST pidlParent = ILCloneParent(pidl); if (pidlParent) { hti = _FindFromRoot(NULL, pidlParent); ILFree(pidlParent); }
if (hti) { // folder exists in tree, if item expanded, load the node, else bag out.
if (_mode != MODE_NORMAL) { TV_ITEM tvi; if (hti != TVI_ROOT) { tvi.mask = TVIF_STATE | TVIF_CHILDREN; tvi.stateMask = (TVIS_EXPANDEDONCE | TVIS_EXPANDED | TVIS_EXPANDPARTIAL); tvi.hItem = (HTREEITEM)hti; if (!TreeView_GetItem(_hwndTree, &tvi)) return hr; // If we drag and item over to a node which has never beem expanded
// before we will always fail to add the new node.
if (!(tvi.state & TVIS_EXPANDEDONCE)) { CheckForExpandOnce(_hwndTree, hti); tvi.mask = TVIF_STATE; tvi.stateMask = (TVIS_EXPANDEDONCE | TVIS_EXPANDED | TVIS_EXPANDPARTIAL); tvi.hItem = (HTREEITEM)hti;
// We need to reset this. This is causing some weird behaviour during drag and drop.
_fAsyncDrop = FALSE; if (!TreeView_GetItem(_hwndTree, &tvi)) return hr; } } else tvi.state = (TVIS_EXPANDEDONCE); // evil root is always expanded.
if (tvi.state & TVIS_EXPANDEDONCE) { LPCITEMIDLIST pidlChild; IShellFolder *psf; hr = _ParentFromItem(pidl, &psf, &pidlChild); if (SUCCEEDED(hr)) { if (_fAsyncDrop) // inserted via drag/drop
{ int iNewPos = _fInsertBefore ? (_iDragDest - 1) : _iDragDest; LPITEMIDLIST pidlReal; if (SUCCEEDED(_IdlRealFromIdlSimple(psf, pidlChild, &pidlReal))) { if (_MoveNode(_iDragSrc, iNewPos, pidlReal)) { TraceMsg(TF_NSC, "NSCBand: Reordering Item"); _fDropping = TRUE; _Dropped(); _fAsyncDrop = FALSE; _fDropping = FALSE; } ILFree(pidlReal); } _htiCur = NULL; _fDragging = _fInserting = _fDropping = FALSE; _iDragDest = _iDragSrc = -1; } else // standard shell notify create or drop with no insert, rename.
{ if (SUCCEEDED(hr)) { if (_iDragDest >= 0) iPosition = _iDragDest; hr = _InsertChild(hti, psf, pidlChild, BOOLIFY(tvi.state & TVIS_SELECTED), TRUE, iPosition, NULL); if (_iDragDest >= 0 && SUCCEEDED(_PopulateOrderList(hti))) { _fDropping = TRUE; _Dropped(); _fDropping = FALSE; } } } psf->Release(); } } } else // MODE_NORMAL
{ // no need to do anything, this item hasn't been expanded yet
if (TreeView_GetItemState(_hwndTree, hti, TVIS_EXPANDEDONCE) & TVIS_EXPANDEDONCE) { LPCITEMIDLIST pidlChild; IShellFolder *psf; if (SUCCEEDED(_ParentFromItem(pidl, &psf, &pidlChild))) { LPITEMIDLIST pidlReal; if (SUCCEEDED(_IdlRealFromIdlSimple(psf, pidlChild, &pidlReal))) { do // scope
{ DWORD dwEnumFlags; _GetEnumFlags(psf, pidlChild, &dwEnumFlags, NULL);
DWORD dwAttributes = SHGetAttributes(psf, pidlReal, SFGAO_FOLDER | SFGAO_HIDDEN | SFGAO_STREAM); // filter out zip files (they are both folders and files but we treat them as files)
// on downlevel SFGAO_STREAM is the same as SFGAO_HASSTORAGE so we'll let zip files slide through (oh well)
// better than not adding filesystem folders (that have storage)
DWORD dwFlags = SFGAO_FOLDER; if (IsOS(OS_WHISTLERORGREATER)) dwFlags |= SFGAO_STREAM; if ((dwAttributes & dwFlags) == SFGAO_FOLDER) { if (!(dwEnumFlags & SHCONTF_FOLDERS)) break; // item is folder but client does not want folders
} else if (!(dwEnumFlags & SHCONTF_NONFOLDERS)) break; // item is file, but client only wants folders
if (!(dwEnumFlags & SHCONTF_INCLUDEHIDDEN) && (dwAttributes & SFGAO_HIDDEN)) break;
hr = _InsertChild(hti, psf, pidlReal, FALSE, TRUE, iPosition, NULL); if (S_OK == hr) { TreeView_SetChildren(_hwndTree, hti, NSC_CHILDREN_ADD); } } while (0); // Execute the block only once
ILFree(pidlReal); } psf->Release(); } } else { TreeView_SetChildren(_hwndTree, hti, NSC_CHILDREN_CALLBACK); } } } }
//if the item is being moved from a folder and we have it's position, we need to fix up the order in the old folder
if (_mode != MODE_NORMAL && iPosition >= 0) //htiParent && (htiParent != hti) &&
{ //item was deleted, need to fixup order info
_ReorderChildren(htiParent); }
_UpdateActiveBorder(_htiActiveBorder); return hr;}
//FEATURE: make this void
HRESULT CNscTree::_OnDeleteItem(NM_TREEVIEW *pnm){ if (_htiActiveBorder == pnm->itemOld.hItem) _htiActiveBorder = NULL;
ITEMINFO * pii = (ITEMINFO *) pnm->itemOld.lParam; pnm->itemOld.lParam = NULL;
OrderItem_Free(pii->poi, TRUE); LocalFree(pii); pii = NULL;
return S_OK;}
void CNscTree::_GetDefaultIconIndex(LPCITEMIDLIST pidl, ULONG ulAttrs, TVITEM *pitem, BOOL fFolder){ if (_iDefaultFavoriteIcon == 0) { WCHAR psz[MAX_PATH]; int iTemp = 0; DWORD cbSize = ARRAYSIZE(psz); if (SUCCEEDED(AssocQueryString(0, ASSOCSTR_DEFAULTICON, TEXT("InternetShortcut"), NULL, psz, &cbSize))) iTemp = PathParseIconLocation(psz);
_iDefaultFavoriteIcon = Shell_GetCachedImageIndex(psz, iTemp, 0);
cbSize = ARRAYSIZE(psz);
if (SUCCEEDED(AssocQueryString(0, ASSOCSTR_DEFAULTICON, TEXT("Folder"), NULL, psz, &cbSize))) iTemp = PathParseIconLocation(psz);
_iDefaultFolderIcon = Shell_GetCachedImageIndex(psz, iTemp, 0); }
pitem->iImage = pitem->iSelectedImage = (fFolder) ? _iDefaultFolderIcon : _iDefaultFavoriteIcon;}
BOOL CNscTree::_LoadOrder(HTREEITEM hti, LPCITEMIDLIST pidl, IShellFolder* psf, HDPA* phdpa){ BOOL fOrdered = FALSE; HDPA hdpaOrder = NULL; IStream *pstm = GetOrderStream(pidl, STGM_READ); if (pstm) { OrderList_LoadFromStream(pstm, &hdpaOrder, psf); pstm->Release(); }
fOrdered = !((hdpaOrder == NULL) || (DPA_GetPtrCount(hdpaOrder) == 0));
//set the tree item's ordered flag
PORDERITEM poi; if (hti == TVI_ROOT) { _fOrdered = fOrdered; } else if ((poi = _GetTreeOrderItem(hti)) != NULL) { poi->lParam = fOrdered; }
*phdpa = hdpaOrder;
return fOrdered;}
// load shell folder and deal with persisted ordering.
HRESULT CNscTree::_LoadSF(HTREEITEM htiRoot, LPCITEMIDLIST pidl, BOOL *pfOrdered){ ASSERT(pfOrdered);#ifdef DEBUG
TraceHTREE(htiRoot, TEXT("Loading the Shell Folder for"));#endif
HRESULT hr = S_OK; IDVGetEnum *pdvge; if (_pidlNavigatingTo && ILIsEqual(pidl, _pidlNavigatingTo) && SUCCEEDED(IUnknown_QueryService(_punkSite, SID_SFolderView, IID_PPV_ARG(IDVGetEnum, &pdvge)))) { pdvge->Release(); // we don't need this, just checking if view supports enumeration stealing
// If we want to expand the item that we are navigating to,
// then let's wait for the CDefView to populate so that we
// can go steal its contents
_fExpandNavigateTo = TRUE; if (_fNavigationFinished) { _CacheShellFolder(htiRoot); // make sure we cache folder in case it is misbehaving shell extension
LPITEMIDLIST pidlClone; hr = SHILClone(pidl, &pidlClone); if (SUCCEEDED(hr)) hr = RightPaneNavigationFinished(pidlClone); // function takes ownership of pidl
} } else { hr = _StartBackgroundEnum(htiRoot, pidl, pfOrdered, FALSE); } return hr;}
HRESULT CNscTree::_StartBackgroundEnum(HTREEITEM htiRoot, LPCITEMIDLIST pidl, BOOL *pfOrdered, BOOL fUpdatePidls){ HRESULT hr = E_OUTOFMEMORY; if (_CacheShellFolder(htiRoot)) { HDPA hdpaOrder = NULL; IShellFolder *psfItem = _psfCache;
psfItem->AddRef(); // hang on as adding items may change the cached psfCache
*pfOrdered = _LoadOrder(htiRoot, pidl, psfItem, &hdpaOrder); DWORD grfFlags; DWORD dwSig = 0; _GetEnumFlags(psfItem, pidl, &grfFlags, NULL); if (htiRoot && htiRoot != TVI_ROOT) { ITEMINFO *pii = _GetTreeItemInfo(htiRoot); if (pii) dwSig = pii->dwSig; } else { htiRoot = TVI_ROOT; }
if (_pTaskScheduler) { // AddNscEnumTask takes ownership of hdpaOrder, but not the pidls
hr = AddNscEnumTask(_pTaskScheduler, pidl, s_NscEnumCallback, this, (UINT_PTR)htiRoot, dwSig, grfFlags, hdpaOrder, _pidlExpandingTo, _dwOrderSig, !_fInExpand, _uDepth, _fUpdate, fUpdatePidls); if (SUCCEEDED(hr) && !_fInExpand) { _fShouldShowAppStartCursor = TRUE; } }
psfItem->Release(); } return hr;}
// s_NscEnumCallback : Callback function for the background enumration.
// This function takes ownership of the hdpa and the pidls.
void CNscTree::s_NscEnumCallback(CNscTree *pns, LPITEMIDLIST pidl, UINT_PTR uId, DWORD dwSig, HDPA hdpa, LPITEMIDLIST pidlExpandingTo, DWORD dwOrderSig, UINT uDepth, BOOL fUpdate, BOOL fUpdatePidls){ NSC_BKGDENUMDONEDATA * pbedd = new NSC_BKGDENUMDONEDATA; if (pbedd) { pbedd->pidl = pidl; pbedd->hitem = (HTREEITEM)uId; pbedd->dwSig = dwSig; pbedd->hdpa = hdpa; pbedd->pidlExpandingTo = pidlExpandingTo; pbedd->dwOrderSig = dwOrderSig; pbedd->uDepth = uDepth; pbedd->fUpdate = fUpdate; pbedd->fUpdatePidls = fUpdatePidls;
// get the lock so that we can add the data to the end of the list
NSC_BKGDENUMDONEDATA **ppbeddWalk = NULL; EnterCriticalSection(&pns->_csBackgroundData);
// Start at the head. We use a pointer to pointer here to eliminate special cases
ppbeddWalk = &pns->_pbeddList;
// First walk to the end of the list
while (*ppbeddWalk) ppbeddWalk = &(*ppbeddWalk)->pNext;
*ppbeddWalk = pbedd; LeaveCriticalSection(&pns->_csBackgroundData);
// It's ok to ignore the return value here. The data will be cleaned up when the
// CNscTree object gets destroyed
if (::IsWindow(pns->_hwndTree)) ::PostMessage(pns->_hwndTree, WM_NSCBACKGROUNDENUMDONE, (WPARAM)NULL, (LPARAM)NULL); } else { ILFree(pidl); ILFree(pidlExpandingTo); OrderList_Destroy(&hdpa, TRUE); }}
BOOL OrderList_Insert(HDPA hdpa, int iIndex, LPITEMIDLIST pidl, int nOrder){ PORDERITEM poi = OrderItem_Create(pidl, nOrder); if (poi) { if (-1 != DPA_InsertPtr(hdpa, iIndex, poi)) return TRUE;
OrderItem_Free(poi, TRUE); // free pid
} return FALSE;}
void CNscTree::_EnumBackgroundDone(NSC_BKGDENUMDONEDATA *pbedd){ HCURSOR hCursorOld = SetCursor(LoadCursor(NULL, IDC_WAIT));
HTREEITEM hti = pbedd->hitem; TVITEM tvi; tvi.mask = TVIF_PARAM; tvi.hItem = hti;
// This can fail if the item was moved before the async icon
// extraction finished for that item.
ITEMINFO* pii = NULL; if (hti != TVI_ROOT && TreeView_GetItem(_hwndTree, &tvi)) { pii = GetPii(tvi.lParam);
// Check if we have the right guy
if (pii->dwSig != pbedd->dwSig) { // Try to find it using the pidl
hti = _FindFromRoot(NULL, pbedd->pidl); if (hti) pii = _GetTreeItemInfo(hti); } }
if ((hti == TVI_ROOT || (pii && pii->dwSig == pbedd->dwSig)) && _CacheShellFolder(hti)) { // Check if the ordering has changed while we were doing the background enumeration
if (pbedd->dwOrderSig == _dwOrderSig) { IShellFolder *psfItem = _psfCache; psfItem->AddRef(); // hang on as adding items may change the cached psfCache
BOOL fInRename = _fInLabelEdit; HTREEITEM htiWasRenaming = fInRename ? _htiRenaming : NULL;
HTREEITEM htiExpandTo = NULL; if (pbedd->pidlExpandingTo) htiExpandTo = _FindChild(psfItem, hti, pbedd->pidlExpandingTo);
BOOL fParentMarked = _IsMarked(hti); BOOL fItemWasAdded = FALSE; BOOL fItemAlreadyIn = FALSE;
::SendMessage(_hwndTree, WM_SETREDRAW, FALSE, 0);
HTREEITEM htiTemp; HTREEITEM htiLast = NULL; // find last child
for (htiTemp = TreeView_GetChild(_hwndTree, hti); htiTemp;) { htiLast = htiTemp; htiTemp = TreeView_GetNextSibling(_hwndTree, htiTemp); }
HTREEITEM htiCur = htiLast; BOOL bReorder = FALSE; int iCur = DPA_GetPtrCount(pbedd->hdpa); for (htiTemp = htiLast; htiTemp;) { HTREEITEM htiNextChild = TreeView_GetPrevSibling(_hwndTree, htiTemp); // must delete in this way or break the linkage of tree.
int iIndex = _TreeItemIndexInHDPA(pbedd->hdpa, psfItem, htiTemp, iCur); if (-1 == iIndex) { PORDERITEM poi = _GetTreeOrderItem(htiTemp); if (poi) { DWORD dwAttrib = SFGAO_VALIDATE; if (FAILED(psfItem->GetAttributesOf(1, (LPCITEMIDLIST*)&poi->pidl, &dwAttrib))) { TreeView_DeleteItem(_hwndTree, htiTemp); if (htiCur == htiTemp) { htiCur = htiNextChild; } } else { // the item is valid but it didn't get enumerated (possible in partial network enumeration)
// we need to add it to our list of new items
LPITEMIDLIST pidl = ILClone(poi->pidl); if (pidl) { if (!OrderList_Insert(pbedd->hdpa, iCur, pidl, -1)) //frees the pidl
{ // must delete item or our insertion below will be out of whack
TreeView_DeleteItem(_hwndTree, htiTemp); if (htiCur == htiTemp) { htiCur = htiNextChild; } } else { bReorder = TRUE; // we reinserted the item into the order list, must reorder
} } } } } else { iCur = iIndex; // our next orderlist insertion point
}
htiTemp = htiNextChild; }
if (!_fOrdered) { int cAdded = DPA_GetPtrCount(pbedd->hdpa);
// htiCur contains the last sibling in that branch
HTREEITEM htiInsertPosition = htiCur ? htiCur : TVI_FIRST;
// Now adding all the new elements starting from the last, since adding at the end of the tree
// is very slow
for (int i = cAdded-1; i >= 0; i--) { PORDERITEM pitoi = (PORDERITEM)DPA_FastGetPtr(pbedd->hdpa, i); if (pitoi == NULL) break;
if (htiCur) { PORDERITEM poi = _GetTreeOrderItem(htiCur); if (poi) { HRESULT hr = psfItem->CompareIDs(0, pitoi->pidl, poi->pidl); // If the item is already there, let's not add it again
if (HRESULT_CODE(hr) == 0) { fItemAlreadyIn = TRUE; if (pbedd->fUpdatePidls) { _AssignPidl(poi, pitoi->pidl); } // Get to the next item
htiCur = TreeView_GetPrevSibling(_hwndTree, htiCur); htiInsertPosition = htiCur; if (!htiCur) htiInsertPosition = TVI_FIRST;
continue; } } }
if (_ShouldShow(psfItem, pbedd->pidl, pitoi->pidl)) { int cChildren = 1; if (MODE_NORMAL == _mode) { DWORD dwAttrib = SHGetAttributes(psfItem, pitoi->pidl, SFGAO_FOLDER | SFGAO_STREAM); cChildren = _GetChildren(psfItem, pitoi->pidl, dwAttrib); }
// If this is a normal NSC, we need to display the plus sign correctly.
if (_AddItemToTree(hti, pitoi->pidl, cChildren, pitoi->nOrder, htiInsertPosition, FALSE, fParentMarked)) { fItemWasAdded = TRUE; } else { break; } } } } else // _fOrdered
{ if (bReorder) { OrderList_Reorder(pbedd->hdpa); } LPITEMIDLIST pidlParent = _GetFullIDList(hti); if (pidlParent) { int celt = DPA_GetPtrCount(pbedd->hdpa); for (int i = 0; i < celt; i++) { PORDERITEM pitoi = (PORDERITEM)DPA_FastGetPtr(pbedd->hdpa, i); if (pitoi == NULL) break;
LPITEMIDLIST pidlFull = ILCombine(pidlParent, pitoi->pidl); if (pidlFull) { htiTemp = _FindFromRoot(hti, pidlFull); // if we DON'T FIND IT add it to the tree . . .
if (!htiTemp) { if (_AddItemToTree(hti, pitoi->pidl, 1, pitoi->nOrder, TVI_LAST, FALSE, fParentMarked)) { fItemWasAdded = TRUE; } else { break; } } else { PORDERITEM poiItem = _GetTreeOrderItem(htiTemp); if (poiItem) { poiItem->nOrder = pitoi->nOrder; } fItemAlreadyIn = TRUE; } ILFree(pidlFull); } } ILFree(pidlParent); } _Sort(hti, _psfCache); }
if (fItemWasAdded || fItemAlreadyIn) { //make sure something is selected, otherwise first click selects instead of expanding/collapsing/navigating
HTREEITEM htiSelected = TreeView_GetSelection(_hwndTree); if (!htiSelected) { htiSelected = TreeView_GetFirstVisible(_hwndTree); _SelectNoExpand(_hwndTree, htiSelected); // do not expand this guy
} if (hti != TVI_ROOT) { // if this is updatedir, don't expand the node
if (!pbedd->fUpdate) { // Check to see if it's expanded.
tvi.mask = TVIF_STATE; tvi.stateMask = (TVIS_EXPANDEDONCE | TVIS_EXPANDED | TVIS_EXPANDPARTIAL); tvi.hItem = hti; if (TreeView_GetItem(_hwndTree, &tvi)) { if (!(tvi.state & TVIS_EXPANDED) || (tvi.state & TVIS_EXPANDPARTIAL)) { _fIgnoreNextItemExpanding = TRUE; _ExpandNode(hti, TVE_EXPAND, 1); _fIgnoreNextItemExpanding = FALSE; } } }
// Handle full recursive expansion case.
if (pbedd->uDepth) { for (htiTemp = TreeView_GetChild(_hwndTree, hti); htiTemp;) { HTREEITEM htiNextChild = TreeView_GetNextSibling(_hwndTree, htiTemp); _ExpandNode(htiTemp, TVE_EXPAND, pbedd->uDepth); htiTemp = htiNextChild; }
if (TVI_ROOT != htiSelected) TreeView_EnsureVisible(_hwndTree, htiSelected); } } } else if (MODE_NORMAL == _mode && !IsOS(OS_WHISTLERORGREATER)) //see comment in OnItemExpanding
{ // we didn't add anything, we better remove +
TreeView_SetChildren(_hwndTree, hti, NSC_CHILDREN_REMOVE); } // we're doing refresh/update dir, we don't care if items were added or not
if (pbedd->fUpdate) { for (htiTemp = TreeView_GetChild(_hwndTree, hti); htiTemp; htiTemp = TreeView_GetNextSibling(_hwndTree, htiTemp)) { PORDERITEM pitoi = _GetTreeOrderItem(htiTemp); if (!pitoi) break; if (SHGetAttributes(psfItem, pitoi->pidl, SFGAO_FOLDER | SFGAO_STREAM) == SFGAO_FOLDER) { UINT uState = TVIS_EXPANDED; if (TVI_ROOT != htiTemp) uState = TreeView_GetItemState(_hwndTree, htiTemp, TVIS_EXPANDEDONCE | TVIS_EXPANDED | TVIS_EXPANDPARTIAL); if (uState & TVIS_EXPANDED) { LPITEMIDLIST pidlFull = ILCombine(pbedd->pidl, pitoi->pidl); if (pidlFull) { BOOL fOrdered; _fUpdate = TRUE; _fInExpand = BOOLIFY(uState & TVIS_EXPANDPARTIAL); _StartBackgroundEnum(htiTemp, pidlFull, &fOrdered, pbedd->fUpdatePidls); _fInExpand = FALSE; _fUpdate = FALSE; ILFree(pidlFull); } } else if (uState & TVIS_EXPANDEDONCE) { TreeView_DeleteChildren(_hwndTree, htiTemp); TreeView_SetChildren(_hwndTree, htiTemp, NSC_CHILDREN_CALLBACK); } } } }
::SendMessage(_hwndTree, WM_SETREDRAW, TRUE, 0); if (htiExpandTo) TreeView_EnsureVisible(_hwndTree, htiExpandTo);
if (fItemWasAdded && fInRename) { _fOkToRename = TRUE; //otherwise label editing is canceled
TreeView_EditLabel(_hwndTree, htiWasRenaming); _fOkToRename = FALSE; }
psfItem->Release(); } else { BOOL fOrdered; // The order has changed, we need start over again using the new order
_StartBackgroundEnum(hti, pbedd->pidl, &fOrdered, pbedd->fUpdatePidls); } }
delete pbedd;
SetCursor(hCursorOld);}
// review chrisny: get rid of this function.
int CNscTree::_GetChildren(IShellFolder *psf, LPCITEMIDLIST pidl, ULONG ulAttrs){ int cChildren = 0; // assume none
// treat zip folders as files (they are both folders and files but we treat them as files)
// on downlevel SFGAO_STREAM is the same as SFGAO_HASSTORAGE so we'll let zip files slide through (oh well)
// better than not adding filesystem folders (that have storage)
if ((ulAttrs & SFGAO_FOLDER)) { if (IsOS(OS_WHISTLERORGREATER)) cChildren = I_CHILDRENAUTO; // let treeview handle +'s
if (_grfFlags & SHCONTF_FOLDERS) { // if just folders we can peek at the attributes
if (SHGetAttributes(psf, pidl, SFGAO_HASSUBFOLDER)) cChildren = 1; } if (cChildren != 1 && (_grfFlags & SHCONTF_NONFOLDERS)) { // there is no SFGAO_ bit that includes non folders so we need to enum
IShellFolder *psfItem; if (SUCCEEDED(psf->BindToObject(pidl, NULL, IID_PPV_ARG(IShellFolder, &psfItem)))) { // if we are showing non folders we have to do an enum to peek down at items below
IEnumIDList *penum; if (S_OK == _GetEnum(psfItem, NULL, &penum)) { ULONG celt; LPITEMIDLIST pidlTemp; if (penum->Next(1, &pidlTemp, &celt) == S_OK && celt == 1) { //do not call ShouldShow here because we will end up without + if the item is filtered out
//it's better to have an extra + that is going to go away when user clicks on it
//than to not be able to expand item with valid children
cChildren = 1; ILFree(pidlTemp); } penum->Release(); } psfItem->Release(); } } } return cChildren;}
void CNscTree::_OnGetDisplayInfo(TV_DISPINFO *pnm){ PORDERITEM poi = GetPoi(pnm->item.lParam); LPCITEMIDLIST pidl = _CacheParentShellFolder(pnm->item.hItem, poi->pidl); ASSERT(pidl); if (pidl == NULL) return; ASSERT(_psfCache); ASSERT(pnm->item.mask & (TVIF_IMAGE | TVIF_SELECTEDIMAGE | TVIF_TEXT | TVIF_CHILDREN)); if (pnm->item.mask & TVIF_TEXT) { SHELLDETAILS details; if (SUCCEEDED(_GetDisplayNameOf(pidl, SHGDN_INFOLDER, &details))) StrRetToBuf(&details.str, pidl, pnm->item.pszText, pnm->item.cchTextMax); } // make sure we set the attributes for those flags that need them
if (pnm->item.mask & (TVIF_CHILDREN | TVIF_IMAGE | TVIF_SELECTEDIMAGE)) { ULONG ulAttrs = SHGetAttributes(_psfCache, pidl, SFGAO_FOLDER | SFGAO_STREAM | SFGAO_NEWCONTENT); // review chrisny: still need to handle notify of changes from
// other navs.
// HACKHACK!!! we're using the TVIS_FOCUSED bit to stored whether there's
// new content or not.
if (ulAttrs & SFGAO_NEWCONTENT) { pnm->item.mask |= TVIF_STATE; pnm->item.stateMask = TVIS_FOCUSED; // init state mask to bold
pnm->item.state = TVIS_FOCUSED; // init state mask to bold
} // Also see if this guy has any child folders
if (pnm->item.mask & TVIF_CHILDREN) pnm->item.cChildren = _GetChildren(_psfCache, pidl, ulAttrs); if (pnm->item.mask & (TVIF_IMAGE | TVIF_SELECTEDIMAGE)) // We now need to map the item into the right image index.
_GetDefaultIconIndex(pidl, ulAttrs, &pnm->item, (ulAttrs & SFGAO_FOLDER));
_UpdateItemDisplayInfo(pnm->item.hItem); } // force the treeview to store this so we don't get called back again
pnm->item.mask |= TVIF_DI_SETITEM;}
#define SZ_CUTA "cut"
#define SZ_CUT TEXT(SZ_CUTA)
#define SZ_RENAMEA "rename"
#define SZ_RENAME TEXT(SZ_RENAMEA)
void CNscTree::_ApplyCmd(HTREEITEM hti, IContextMenu *pcm, UINT idCmd){ TCHAR szCommandString[40]; BOOL fHandled = FALSE; BOOL fCutting = FALSE; // We need to special case the rename command
if (SUCCEEDED(ContextMenu_GetCommandStringVerb(pcm, idCmd, szCommandString, ARRAYSIZE(szCommandString)))) { if (StrCmpI(szCommandString, SZ_RENAME)==0) { TreeView_EditLabel(_hwndTree, hti); fHandled = TRUE; } else if (!StrCmpI(szCommandString, SZ_CUT)) { fCutting = TRUE; } } if (!fHandled) { CMINVOKECOMMANDINFO ici = { sizeof(CMINVOKECOMMANDINFO), 0, _hwndTree, MAKEINTRESOURCEA(idCmd), NULL, NULL, SW_NORMAL, }; HRESULT hr = pcm->InvokeCommand(&ici); if (fCutting && SUCCEEDED(hr)) { TV_ITEM tvi; tvi.mask = TVIF_STATE; tvi.stateMask = TVIS_CUT; tvi.state = TVIS_CUT; tvi.hItem = hti; TreeView_SetItem(_hwndTree, &tvi); // _hwndNextViewer = SetClipboardViewer(_hwndTree);
// _htiCut = hti;
} //hack to force a selection update, so oc can update it's status text
if (_mode & MODE_CONTROL) { HTREEITEM hti = TreeView_GetSelection(_hwndTree); ::SendMessage(_hwndTree, WM_SETREDRAW, FALSE, 0); TreeView_SelectItem(_hwndTree, NULL); //only select the item if the handle is still valid
if (hti) TreeView_SelectItem(_hwndTree, hti); ::SendMessage(_hwndTree, WM_SETREDRAW, TRUE, 0); } }}
// perform actions like they were chosen from the context menu, but without showing the menu
HRESULT CNscTree::_InvokeContextMenuCommand(BSTR strCommand){ ASSERT(strCommand); HTREEITEM htiSelected = TreeView_GetSelection(_hwndTree); if (htiSelected) { if (StrCmpIW(strCommand, L"rename") == 0) { _fOkToRename = TRUE; //otherwise label editing is canceled
TreeView_EditLabel(_hwndTree, htiSelected); _fOkToRename = FALSE; } else { LPCITEMIDLIST pidl = _CacheParentShellFolder(htiSelected, NULL); if (pidl) { IContextMenu *pcm; if (SUCCEEDED(_psfCache->GetUIObjectOf(_hwndTree, 1, &pidl, IID_PPV_ARG_NULL(IContextMenu, &pcm)))) { CHAR szCommand[MAX_PATH]; SHUnicodeToAnsi(strCommand, szCommand, ARRAYSIZE(szCommand)); // QueryContextMenu, even though unused, initializes the folder properly (fixes delete subscription problems)
HMENU hmenu = CreatePopupMenu(); if (hmenu) pcm->QueryContextMenu(hmenu, 0, 0, 0x7fff, CMF_NORMAL);
/* Need to try twice, in case callee is ANSI-only */ CMINVOKECOMMANDINFOEX ici = { CMICEXSIZE_NT4, /* Be NT4-compat */ CMIC_MASK_UNICODE, _hwndTree, szCommand, NULL, NULL, SW_NORMAL, 0, NULL, NULL, strCommand, NULL, NULL, NULL, }; HRESULT hr = pcm->InvokeCommand((LPCMINVOKECOMMANDINFO)&ici); if (hr == E_INVALIDARG) { // Recipient didn't like the unicode command; send an ANSI one
ici.cbSize = sizeof(CMINVOKECOMMANDINFO); ici.fMask &= ~CMIC_MASK_UNICODE; pcm->InvokeCommand((LPCMINVOKECOMMANDINFO)&ici); }
// do any visuals for cut state
if (SUCCEEDED(hr) && StrCmpIW(strCommand, L"cut") == 0) { HTREEITEM hti = TreeView_GetSelection(_hwndTree); if (hti) { _TreeSetItemState(hti, TVIS_CUT, TVIS_CUT); ASSERT(!_hwndNextViewer); _hwndNextViewer = ::SetClipboardViewer(_hwndTree); _htiCut = hti; } } if (hmenu) DestroyMenu(hmenu); pcm->Release(); } } } //if properties was invoked, who knows what might have changed, so force a reselect
if (StrCmpNW(strCommand, L"properties", 10) == 0) { TreeView_SelectItem(_hwndTree, htiSelected); } }
return S_OK;}
//
// pcm = IContextMenu for the item the user selected
// hti = the item the user selected
//
// Okay, this menu thing is kind of funky.
//
// If "Favorites", then everybody gets "Create new folder".
//
// If expandable:
// Show "Expand" or "Collapse"
// (accordingly) and set it as the default.
//
// If not expandable:
// The default menu of the underlying context menu is
// used as the default; or use the first item if nobody
// picked a default.
//
// We replace the existing "Open" command with our own.
//
HMENU CNscTree::_CreateContextMenu(IContextMenu *pcm, HTREEITEM hti){ BOOL fExpandable = _IsExpandable(hti); HMENU hmenu = CreatePopupMenu(); if (hmenu) { pcm->QueryContextMenu(hmenu, 0, RSVIDM_CONTEXT_START, 0x7fff, CMF_EXPLORE | CMF_CANRENAME);
// Always delete "Create shortcut" from the context menu.
ContextMenu_DeleteCommandByName(pcm, hmenu, RSVIDM_CONTEXT_START, L"link"); // Sometimes we need to delete "Open":
//
// History mode always. The context menu for history mode folders
// has "Open" but it doesn't work, so we need to replace it with
// Expand/Collapse. And the context menu for history mode items
// has "Open" but it opens in a new window. We want to navigate.
//
// Favorites mode, expandable: Leave "Open" alone -- it will open
// the expandable thing in a new window.
//
// Favorites mode, non-expandable: Delete the original "Open" and
// replace it with ours that does a navigate.
//
BOOL fReplaceOpen = (_mode & MODE_HISTORY) || (!fExpandable && (_mode & MODE_FAVORITES)); if (fReplaceOpen) ContextMenu_DeleteCommandByName(pcm, hmenu, RSVIDM_CONTEXT_START, L"open");
// Load the NSC part of the context menu and party on it separately.
// By doing this, we save the trouble of having to do a SHPrettyMenu
// after we dork it -- Shell_MergeMenus does all the prettying
// automatically. NOTE: this is totally bogus reasoning - cleaner code the other way around...
HMENU hmenuctx = LoadMenuPopup_PrivateNoMungeW(POPUP_CONTEXT_NSC); if (hmenuctx) { // create new folder doesn't make sense outside of favorites
// (actually, it does, but there's no interface to it)
if (!(_mode & MODE_FAVORITES)) DeleteMenu(hmenuctx, RSVIDM_NEWFOLDER, MF_BYCOMMAND);
// Of "Expand", "Collapse", or "Open", we will keep at most one of
// them. idmKeep is the one we choose to keep.
//
UINT idmKeep; if (fExpandable) { // Even if the item has no children, we still show Expand.
// The reason is that an item that has never been expanded
// is marked as "children: unknown" so we show an Expand
// and then the user picks it and nothing expands. And then
// the user clicks it again and the Expand option is gone!
// (Because the second time, we know that the item isn't
// expandable.)
//
// Better to be consistently wrong than randomly wrong.
//
if (_IsItemExpanded(hti)) idmKeep = RSVIDM_COLLAPSE; else idmKeep = RSVIDM_EXPAND; } else if (!(_mode & MODE_CONTROL)) { idmKeep = RSVIDM_OPEN; } else { idmKeep = 0; }
// Now go decide which of RSVIDM_COLLAPSE, RSVIDM_EXPAND, or
// RSVIDM_OPEN we want to keep.
//
if (idmKeep != RSVIDM_EXPAND) DeleteMenu(hmenuctx, RSVIDM_EXPAND, MF_BYCOMMAND); if (idmKeep != RSVIDM_COLLAPSE) DeleteMenu(hmenuctx, RSVIDM_COLLAPSE, MF_BYCOMMAND); if (idmKeep != RSVIDM_OPEN) DeleteMenu(hmenuctx, RSVIDM_OPEN, MF_BYCOMMAND);
// in normal mode we want to gray out expand if folder cannot be expanded
if (idmKeep == RSVIDM_EXPAND && _mode == MODE_NORMAL) { TV_ITEM tvi; tvi.mask = TVIF_CHILDREN; tvi.hItem = hti; if (TreeView_GetItem(_hwndTree, &tvi) && !tvi.cChildren) { EnableMenuItem(hmenuctx, RSVIDM_EXPAND, MF_BYCOMMAND | MF_DISABLED | MF_GRAYED); } } Shell_MergeMenus(hmenu, hmenuctx, 0, 0, 0xFFFF, fReplaceOpen ? 0 : MM_ADDSEPARATOR);
DestroyMenu(hmenuctx);
if (idmKeep) SetMenuDefaultItem(hmenu, idmKeep, MF_BYCOMMAND); }
// Menu item "Open in New Window" needs to be disabled if the restriction is set
if( SHRestricted2W(REST_NoOpeninNewWnd, NULL, 0)) { EnableMenuItem(hmenu, RSVIDM_CONTEXT_START + RSVIDM_OPEN_NEWWINDOW, MF_BYCOMMAND | MF_DISABLED | MF_GRAYED); }
_SHPrettyMenu(hmenu); } return hmenu;}
LRESULT CNscTree::_OnContextMenu(short x, short y){ HTREEITEM hti; POINT ptPopup; // in screen coordinate
//assert that the SetFocus() below won't be ripping focus away from anyone
ASSERT((_mode & MODE_CONTROL) ? (GetFocus() == _hwndTree) : TRUE);
if (x == -1 && y == -1) { // Keyboard-driven: Get the popup position from the selected item.
hti = TreeView_GetSelection(_hwndTree); if (hti) { RECT rc; //
// Note that TV_GetItemRect returns it in client coordinate!
//
TreeView_GetItemRect(_hwndTree, hti, &rc, TRUE); //cannot point to middle of item rect because if item name cannot fit into control rect
//treeview puts tooltip on top and rect returned above is from tooltip whose middle
//may not be in Treeview which causes problems later in the function
ptPopup.x = rc.left + 1; ptPopup.y = (rc.top + rc.bottom) / 2; ::MapWindowPoints(_hwndTree, HWND_DESKTOP, &ptPopup, 1); } //so we can go into rename mode
_fOkToRename = TRUE; } else { TV_HITTESTINFO tvht;
// Mouse-driven: Pick the treeitem from the position.
ptPopup.x = x; ptPopup.y = y;
tvht.pt = ptPopup; ::ScreenToClient(_hwndTree, &tvht.pt);
hti = TreeView_HitTest(_hwndTree, &tvht); }
if (hti) { LPCITEMIDLIST pidl = _CacheParentShellFolder(hti, NULL); if (pidl) { IContextMenu *pcm;
TreeView_SelectDropTarget(_hwndTree, hti);
if (SUCCEEDED(_psfCache->GetUIObjectOf(_hwndTree, 1, &pidl, IID_PPV_ARG_NULL(IContextMenu, &pcm)))) { pcm->QueryInterface(IID_PPV_ARG(IContextMenu2, &_pcmSendTo));
HMENU hmenu = _CreateContextMenu(pcm, hti); if (hmenu) { UINT idCmd;
_pcm = pcm; // for IContextMenu2 code
// use _hwnd so menu msgs go there and I can forward them
// using IContextMenu2 so "Sent To" works
// review chrisny: useTrackPopupMenuEx for clipping etc.
idCmd = TrackPopupMenu(hmenu, TPM_RETURNCMD | TPM_RIGHTBUTTON | TPM_LEFTALIGN, ptPopup.x, ptPopup.y, 0, _hwndTree, NULL); // Note: must requery selected item to verify that the hti is good. This
// solves the problem where the hti was deleted, hence pointed to something
// bogus, then we write to it causing heap corruption, while the menu was up.
TV_HITTESTINFO tvht; tvht.pt = ptPopup; ::ScreenToClient(_hwndTree, &tvht.pt); hti = TreeView_HitTest(_hwndTree, &tvht); if (hti && idCmd) { switch (idCmd) { case RSVIDM_OPEN: case RSVIDM_EXPAND: case RSVIDM_COLLAPSE: TreeView_SelectItem(_hwndTree, hti); // turn off flag, so select will have an effect.
_fOkToRename = FALSE; _OnSelChange(FALSE); // selection has changed, force the navigation.
// SelectItem may not expand (if was closed and selected)
TreeView_Expand(_hwndTree, hti, idCmd == RSVIDM_COLLAPSE ? TVE_COLLAPSE : TVE_EXPAND); break;
// This WAS unix only, now win32 does it too
// IEUNIX : We allow new folder creation from context menu. since
// this control was used to organize favorites in IEUNIX4.0
case RSVIDM_NEWFOLDER: CreateNewFolder(hti); break;
default: _ApplyCmd(hti, pcm, idCmd-RSVIDM_CONTEXT_START); break; }
//we must have had focus before (asserted above), but we might have lost it after a delete.
//get it back.
//this is only a problem in the nsc oc.
if ((_mode & MODE_CONTROL) && !_fInLabelEdit) ::SetFocus(_hwndTree); } ATOMICRELEASE(_pcmSendTo); DestroyMenu(hmenu); _pcm = NULL; } pcm->Release(); } TreeView_SelectDropTarget(_hwndTree, NULL); } }
if (x == -1 && y == -1) _fOkToRename = FALSE;
return S_FALSE; // So WM_CONTEXTMENU message will not come.
}
HRESULT CNscTree::_QuerySelection(IContextMenu **ppcm, HTREEITEM *phti){ HRESULT hr = E_FAIL; HTREEITEM hti = TreeView_GetSelection(_hwndTree); if (hti) { LPCITEMIDLIST pidl = _CacheParentShellFolder(hti, NULL); if (pidl) { if (ppcm) { hr = _psfCache->GetUIObjectOf(_hwndTree, 1, &pidl, IID_PPV_ARG_NULL(IContextMenu, ppcm)); } else { hr = S_OK; } } } if (phti) *phti = hti; return hr;}
LRESULT NSCEditBoxSubclassWndProc(HWND hwnd, UINT uMsg, WPARAM wParam, LPARAM lParam, UINT_PTR uIdSubclass, DWORD_PTR dwRefData){ if (uIdSubclass == ID_NSC_SUBCLASS && uMsg == WM_GETDLGCODE) { return DLGC_WANTMESSAGE; } return DefSubclassProc(hwnd, uMsg, wParam, lParam);}
LRESULT CNscTree::_OnBeginLabelEdit(TV_DISPINFO *ptvdi){ BOOL fCantRename = TRUE; LPCITEMIDLIST pidl = _CacheParentShellFolder(ptvdi->item.hItem, NULL); if (pidl) { if (SHGetAttributes(_psfCache, pidl, SFGAO_CANRENAME)) fCantRename = FALSE; }
HWND hwndEdit = (HWND)::SendMessage(_hwndTree, TVM_GETEDITCONTROL, 0, 0); if (hwndEdit) { WCHAR szName[MAX_PATH]; if (SUCCEEDED(DisplayNameOf(_psfCache, pidl, SHGDN_INFOLDER|SHGDN_FOREDITING, szName, ARRAYSIZE(szName)))) { SHLimitInputEdit(hwndEdit, _psfCache); ::SetWindowText(hwndEdit, szName); } SetWindowSubclass(hwndEdit, NSCEditBoxSubclassWndProc, ID_NSC_SUBCLASS, NULL); } _fInLabelEdit = !fCantRename; if (_fInLabelEdit) _htiRenaming = ptvdi->item.hItem; return fCantRename;}
//
// Utility function for CNSCTree::_OnEndLabelEdit
// Does not set the new value in the tree view if the old
// value is the same.
//
BOOL CNscTree::_LabelEditIsNewValueValid(TV_DISPINFO *ptvdi){ ASSERT(ptvdi && ptvdi->item.hItem); TCHAR szOldValue[MAX_PATH];
szOldValue[0] = '\0'; TV_ITEM tvi; tvi.mask = TVIF_TEXT; tvi.hItem = (HTREEITEM)ptvdi->item.hItem; tvi.pszText = szOldValue; tvi.cchTextMax = ARRAYSIZE(szOldValue); TreeView_GetItem(_hwndTree, &tvi); //
// is the old value in the control unequal to the new one?
//
return (0 != StrCmp(tvi.pszText, ptvdi->item.pszText));}
LRESULT CNscTree::_OnEndLabelEdit(TV_DISPINFO *ptvdi){ HWND hwndEdit = (HWND)::SendMessage(_hwndTree, TVM_GETEDITCONTROL, 0, 0); if (hwndEdit) { RemoveWindowSubclass(hwndEdit, NSCEditBoxSubclassWndProc, ID_NSC_SUBCLASS); }
#ifdef UNIX
// IEUNIX (APPCOMPAT): If we lose activation in the middle of rename operation
// and we have invalid name in the edit box, rename operation will popup
// a message box which causes IE on unix to go into infinite focus changing
// loop. To workaround this problem, we are considering the operation as
// cancelled and we copy the original value into the buffer.
BOOL fHasActivation = FALSE;
if (GetActiveWindow() && IsChild(GetActiveWindow(), _hwndTree)) fHasActivation = TRUE;
if (!fHasActivation) { TV_ITEM tvi; tvi.mask = TVIF_TEXT; tvi.hItem = (HTREEITEM)ptvdi->item.hItem; tvi.pszText = ptvdi->item.pszText; tvi.cchTextMax = ptvdi->item.cchTextMax; TreeView_GetItem(_hwndTree, &tvi); }#endif
if ((ptvdi->item.pszText != NULL) && _LabelEditIsNewValueValid(ptvdi)) { ASSERT(ptvdi->item.hItem); LPCITEMIDLIST pidl = _CacheParentShellFolder(ptvdi->item.hItem, NULL); if (pidl) { WCHAR wszName[MAX_PATH - 5]; //-5 to work around nt4 shell32 bug
SHTCharToUnicode(ptvdi->item.pszText, wszName, ARRAYSIZE(wszName)); if (SUCCEEDED(_psfCache->SetNameOf(_hwndTree, pidl, wszName, 0, NULL))) { // NOTES: pidl is no longer valid here.
// Set the handle to NULL in the notification to let
// the system know that the pointer is probably not
// valid anymore.
ptvdi->item.hItem = NULL; _FlushNotifyMessages(_hwndTree); // do this last, else we get bad results
_fInLabelEdit = FALSE;#ifdef UNIX
SHChangeNotifyHandleEvents();#endif
} else { // not leaving label edit mode here, so do not set _fInLabelEdit to FALSE or we
// will not get ::TranslateAcceleratorIO() and backspace, etc, will not work.
_fOkToRename = TRUE; //otherwise label editing is canceled
::SendMessage(_hwndTree, TVM_EDITLABEL, (WPARAM)ptvdi->item.pszText, (LPARAM)ptvdi->item.hItem); _fOkToRename = FALSE; } } } else _fInLabelEdit = FALSE;
if (!_fInLabelEdit) _htiRenaming = NULL; //else user cancelled, nothing to do here.
return 0; // We always return 0, "we handled it".
} BOOL _DidDropOnRecycleBin(IDataObject *pdtobj){ CLSID clsid; return SUCCEEDED(DataObj_GetBlob(pdtobj, g_cfTargetCLSID, &clsid, sizeof(clsid))) && IsEqualCLSID(clsid, CLSID_RecycleBin);}
void CNscTree::_OnBeginDrag(NM_TREEVIEW *pnmhdr){ LPCITEMIDLIST pidl = _CacheParentShellFolder(pnmhdr->itemNew.hItem, NULL); _htiDragging = pnmhdr->itemNew.hItem; // item we are dragging.
if (pidl) { if (_pidlDrag) { ILFree(_pidlDrag); _pidlDrag = NULL; }
DWORD dwEffect = SHGetAttributes(_psfCache, pidl, DROPEFFECT_MOVE | DROPEFFECT_COPY | DROPEFFECT_LINK); if (dwEffect) { IDataObject *pdtobj; HRESULT hr = _psfCache->GetUIObjectOf(_hwndTree, 1, &pidl, IID_PPV_ARG_NULL(IDataObject, &pdtobj)); if (SUCCEEDED(hr)) { HWND hwndTT; _fDragging = TRUE; if (hwndTT = TreeView_GetToolTips(_hwndTree)) ::SendMessage(hwndTT, TTM_POP, (WPARAM) 0, (LPARAM) 0); PORDERITEM poi = _GetTreeOrderItem(pnmhdr->itemNew.hItem); if (poi) { _iDragSrc = poi->nOrder; TraceMsg(TF_NSC, "NSCBand: Starting Drag"); _pidlDrag = ILClone(poi->pidl); _htiFolderStart = TreeView_GetParent(_hwndTree, pnmhdr->itemNew.hItem); if (_htiFolderStart == NULL) _htiFolderStart = TVI_ROOT; } else { _iDragSrc = -1; _pidlDrag = NULL; _htiFolderStart = NULL; }
//
// Don't allow drag and drop of channels if
// REST_NoRemovingChannels is set.
//
if (!SHRestricted2(REST_NoRemovingChannels, NULL, 0) || !_IsChannelFolder(_htiDragging)) { HIMAGELIST himlDrag; SHLoadOLE(SHELLNOTIFY_OLELOADED); // Browser Only - our shell32 doesn't know ole has been loaded
_fStartingDrag = TRUE; IDragSourceHelper* pdsh = NULL; if (SUCCEEDED(CoCreateInstance(CLSID_DragDropHelper, NULL, CLSCTX_INPROC_SERVER, IID_PPV_ARG(IDragSourceHelper, &pdsh)))) { pdsh->InitializeFromWindow(_hwndTree, &pnmhdr->ptDrag, pdtobj); _fStartingDrag = FALSE; } else { himlDrag = TreeView_CreateDragImage(_hwndTree, pnmhdr->itemNew.hItem); _fStartingDrag = FALSE; if (himlDrag) { DAD_SetDragImage(himlDrag, NULL); } } hr = SHDoDragDrop(_hwndTree, pdtobj, NULL, dwEffect, &dwEffect);
// the below follows the logic in defview for non-filesystem deletes.
InitClipboardFormats(); if ((DRAGDROP_S_DROP == hr) && (DROPEFFECT_MOVE == dwEffect) && (DROPEFFECT_MOVE == DataObj_GetDWORD(pdtobj, g_cfPerformedEffect, DROPEFFECT_NONE))) { // enable UI for the recycle bin case (the data will be lost
// as the recycle bin really can't recycle stuff that is not files)
UINT uFlags = _DidDropOnRecycleBin(pdtobj) ? 0 : CMIC_MASK_FLAG_NO_UI; SHInvokeCommandOnDataObject(_hwndTree, NULL, pdtobj, uFlags, "delete"); } else if (dwEffect == DROPEFFECT_NONE) { // nothing happened when the d&d terminated, so clean up you fool.
ILFree(_pidlDrag); _pidlDrag = NULL; }
if (pdsh) { pdsh->Release(); } else { DAD_SetDragImage((HIMAGELIST)-1, NULL); ImageList_Destroy(himlDrag); } }
_iDragSrc = -1; pdtobj->Release(); } } } _htiDragging = NULL;}
BOOL IsExpandableChannelFolder(IShellFolder *psf, LPCITEMIDLIST pidl){ if (WhichPlatform() == PLATFORM_INTEGRATED) return SHIsExpandableFolder(psf, pidl);
ASSERT(pidl); ASSERT(psf);
BOOL fExpand = FALSE; IShellFolder* psfChannelFolder; if (pidl && psf && SUCCEEDED(SHBindToObject(psf, IID_X_PPV_ARG(IShellFolder, pidl, &psfChannelFolder)))) { IEnumIDList *penum; if (S_OK == psfChannelFolder->EnumObjects(NULL, SHCONTF_FOLDERS | SHCONTF_NONFOLDERS, &penum)) { ULONG celt; LPITEMIDLIST pidlTemp;
if (penum->Next(1, &pidlTemp, &celt) == S_OK && celt == 1) { ILFree(pidlTemp); fExpand = FALSE; } if (penum->Next(1, &pidlTemp, &celt) == S_OK && celt == 1) { ILFree(pidlTemp); fExpand = TRUE; } penum->Release(); } psfChannelFolder->Release(); }
return fExpand;}
BOOL CNscTree::_OnSelChange(BOOL fMark){ BOOL fExpand = TRUE; HTREEITEM hti = TreeView_GetSelection(_hwndTree); BOOL fMultiSelect = _dwFlags & NSS_MULTISELECT;
//if we're in control mode (where pnscProxy always null), never navigate
if (hti) { LPCITEMIDLIST pidlItem = _CacheParentShellFolder(hti, NULL); if (pidlItem && !fMultiSelect) { if (_pnscProxy && !_fInSelectPidl) { ULONG ulAttrs = SFGAO_FOLDER | SFGAO_NEWCONTENT; LPITEMIDLIST pidlTarget; LPITEMIDLIST pidlFull = _GetFullIDList(hti); HRESULT hr = _pnscProxy->GetNavigateTarget(pidlFull, &pidlTarget, &ulAttrs); if (SUCCEEDED(hr)) { if (hr == S_OK) { _pnscProxy->Invoke(pidlTarget); ILFree(pidlTarget); } // review chrisny: still need to handle notify of changes from
// other navs.
if (ulAttrs & SFGAO_NEWCONTENT) { TV_ITEM tvi; tvi.hItem = hti; tvi.mask = TVIF_STATE | TVIF_HANDLE; tvi.stateMask = TVIS_FOCUSED; // the BOLD bit is to be
tvi.state = 0; // cleared
TreeView_SetItem(_hwndTree, &tvi); } } else { if (!(SHGetAttributes(_psfCache, pidlItem, SFGAO_FOLDER))) SHInvokeDefaultCommand(_hwndTree, _psfCache, pidlItem); }
ILFree(pidlFull); fExpand = hr != S_OK && (ulAttrs & SFGAO_FOLDER); } } }
if (fMultiSelect) { if (fMark) { UINT uState = TreeView_GetItemState(_hwndTree, hti, NSC_TVIS_MARKED) & NSC_TVIS_MARKED;
uState ^= NSC_TVIS_MARKED; _MarkChildren(hti, uState == NSC_TVIS_MARKED); _htiActiveBorder = NULL; } } else if (!_fSingleExpand && fExpand && (_mode != MODE_NORMAL)) { TreeView_Expand(_hwndTree, hti, TVE_TOGGLE); }
if (!fMultiSelect) _UpdateActiveBorder(hti);
return TRUE;}
void CNscTree::_OnSetSelection(){ HTREEITEM hti = TreeView_GetSelection(_hwndTree); LPITEMIDLIST pidlItem = _GetFullIDList(hti);
if (_pnscProxy && !_fInSelectPidl) { _pnscProxy->OnSelectionChanged(pidlItem); }
ILFree(pidlItem);}
void CNscTree::_OnGetInfoTip(NMTVGETINFOTIP* pnm){ // No info tip operation on drag/drop
if (_fDragging || _fDropping || _fClosing || _fHandlingShellNotification || _fInSelectPidl) return;
PORDERITEM poi = GetPoi(pnm->lParam); if (poi) { LPITEMIDLIST pidl = _CacheParentShellFolder(pnm->hItem, poi->pidl); if (pidl) { // Use the imported Browseui function because the one in shell\lib does
// not work on browser-only platforms
GetInfoTip(_psfCache, pidl, pnm->pszText, pnm->cchTextMax); } }}
LRESULT CNscTree::_OnSetCursor(NMMOUSE* pnm){ if (_mode == MODE_NORMAL && _fShouldShowAppStartCursor) { SetCursor(LoadCursor(NULL, IDC_APPSTARTING)); return 1; }
if (!pnm->dwItemData) { SetCursor(LoadCursor(NULL, IDC_ARROW)); return 1; }
if (!(_mode & MODE_CONTROL) && (_mode != MODE_NORMAL)) { ITEMINFO* pii = GetPii(pnm->dwItemData); if (pii) { if (!pii->fNavigable) { //folders always get the arrow
SetCursor(LoadCursor(NULL, IDC_ARROW)); } else { //favorites always get some form of the hand
HCURSOR hCursor = pii->fGreyed ? (HCURSOR)LoadCursor(HINST_THISDLL, MAKEINTRESOURCE(IDC_OFFLINE_HAND)) : LoadHandCursor(0); if (hCursor) SetCursor(hCursor); } } } else { //always show the arrow in org favs
SetCursor(LoadCursor(NULL, IDC_ARROW)); } return 1; // 1 if We handled it, 0 otherwise
}
BOOL CNscTree::_IsTopParentItem(HTREEITEM hti){ return (hti && (!TreeView_GetParent(_hwndTree, hti)));}
LRESULT CNscTree::_OnNotify(LPNMHDR pnm){ LRESULT lres = 0;
switch (pnm->idFrom) { case ID_CONTROL: { switch (pnm->code) { case NM_CUSTOMDRAW: return _OnCDNotify((LPNMCUSTOMDRAW)pnm);
case TVN_GETINFOTIP: // no info tips on drag/drop ops
// According to Bug#241601, Tooltips display too quickly. The problem is
// the original designer of the InfoTips in the Treeview merged the "InfoTip" tooltip and
// the "I'm too small to display correctly" tooltips. This is really unfortunate because you
// cannot control the display of these tooltips independantly. Therefore we are turning off
// infotips in normal mode.
if (!_fInLabelEdit && _mode != MODE_NORMAL) _OnGetInfoTip((NMTVGETINFOTIP*)pnm); else return FALSE; break; case NM_SETCURSOR: lres = _OnSetCursor((NMMOUSE*)pnm); break; case NM_SETFOCUS: case NM_KILLFOCUS: if (pnm->code == NM_KILLFOCUS) { _fHasFocus = FALSE;
//invalidate the item because tabbing away doesn't
RECT rc;
// Tree can focus and not have any items.
HTREEITEM hti = TreeView_GetSelection(_hwndTree); if (hti) { TreeView_GetItemRect(_hwndTree, hti, &rc, FALSE); //does this need to be UpdateWindow? only if focus rect gets left behind.
::InvalidateRect(_hwndTree, &rc, FALSE); } } else { _fHasFocus = TRUE; }
// do this for both set and kill focus...
if (_dwFlags & NSS_MULTISELECT) { HTREEITEM hti = TreeView_GetNextItem(_hwndTree, NULL, TVGN_FIRSTVISIBLE);
while (hti) { UINT uState = TreeView_GetItemState(_hwndTree, hti, NSC_TVIS_MARKED); if (uState & NSC_TVIS_MARKED) { RECT rc;
TreeView_GetItemRect(_hwndTree, hti, &rc, FALSE); //does this need to be UpdateWindow? only if focus rect gets left behind.
::InvalidateRect(_hwndTree, &rc, FALSE); } hti = TreeView_GetNextItem(_hwndTree, hti, TVGN_NEXTVISIBLE); } } break;
case TVN_KEYDOWN: { TV_KEYDOWN *ptvkd = (TV_KEYDOWN *) pnm; switch (ptvkd->wVKey) { case VK_RETURN: case VK_SPACE: _OnSelChange(TRUE); lres = TRUE; break;
case VK_DELETE: if (!((_mode & MODE_HISTORY) && IsInetcplRestricted(L"History"))) { // in explorer band we never come here
// and in browse for folder we cannot ignore the selection
// because we will end up with nothing selected
if (_mode != MODE_NORMAL) _fIgnoreNextSelChange = TRUE; InvokeContextMenuCommand(L"delete"); } break;
case VK_UP: case VK_DOWN: //VK_MENU == VK_ALT
if ((_mode != MODE_HISTORY) && (_mode != MODE_NORMAL) && (GetKeyState(VK_MENU) < 0)) { MoveItemUpOrDown(ptvkd->wVKey == VK_UP); lres = 0; _fIgnoreNextSelChange = TRUE; } break; case VK_F2: //only do this in org favs, because the band accel handler usually processes this
//SHBrowseForFolder doesn't have band to process it so do it in normal mode as well
if ((_mode & MODE_CONTROL) || _mode == MODE_NORMAL) InvokeContextMenuCommand(L"rename"); break;
default: break; } if (!_fSingleExpand && !(_dwFlags & NSS_MULTISELECT)) _UpdateActiveBorder(TreeView_GetSelection(_hwndTree)); } break;
case TVN_SELCHANGINGA: case TVN_SELCHANGING: { //hack because treeview keydown ALWAYS does it's default processing
if (_fIgnoreNextSelChange) { _fIgnoreNextSelChange = FALSE; return TRUE; }
NM_TREEVIEW * pnmtv = (NM_TREEVIEW *) pnm;
//if it's coming from somewhere weird (like a WM_SETFOCUS), don't let it select
return (pnmtv->action != TVC_BYKEYBOARD) && (pnmtv->action != TVC_BYMOUSE) && (pnmtv->action != TVC_UNKNOWN); } break; case TVN_SELCHANGEDA: case TVN_SELCHANGED: if (_fSelectFromMouseClick) { _OnSetSelection(); } else { ::KillTimer(_hwndTree, IDT_SELECTION); ::SetTimer(_hwndTree, IDT_SELECTION, GetDoubleClickTime(), NULL); }#ifdef DEBUG
{ HTREEITEM hti = TreeView_GetSelection(_hwndTree); LPITEMIDLIST pidl = _GetFullIDList(hti); if (pidl) { TCHAR sz[MAX_PATH]; SHGetNameAndFlags(pidl, SHGDN_NORMAL, sz, SIZECHARS(sz), NULL); TraceMsg(TF_NSC, "NSCBand: Selecting %s", sz); //
// On NT4 and W95 shell this call will miss the history
// shell extension junction point. It will then deref into
// history pidls as if they were shell pidls. On short
// history pidls this would fault on a debug version of the OS.
//
// SHGetNameAndFlags(pidl, SHGDN_FORPARSING | SHGDN_FORADDRESSBAR, sz, SIZECHARS(sz), NULL);
//TraceMsg(TF_NSC, "displayname = %s", sz);
ILFree(pidl); } }#endif // DEBUG
break;
case TVN_GETDISPINFO: _OnGetDisplayInfo((TV_DISPINFO *)pnm); break;
case TVN_ITEMEXPANDING: TraceMsg(TF_NSC, "NSCBand: Expanding"); if (!_fIgnoreNextItemExpanding) { lres = _OnItemExpandingMsg((LPNM_TREEVIEW)pnm); } else if (!_fInExpand) // pretend we processed it if we are expanding to avoid recursion
{ lres = TRUE; } break; case TVN_DELETEITEM: _OnDeleteItem((LPNM_TREEVIEW)pnm); break; case TVN_BEGINDRAG: case TVN_BEGINRDRAG: _OnBeginDrag((NM_TREEVIEW *)pnm); break; case TVN_BEGINLABELEDIT: //this is to prevent slow double-click rename in favorites and history
if (_mode != MODE_NORMAL && !_fOkToRename) return 1;
lres = _OnBeginLabelEdit((TV_DISPINFO *)pnm);
if (_punkSite) IUnknown_UIActivateIO(_punkSite, TRUE, NULL); break; case TVN_ENDLABELEDIT: lres = _OnEndLabelEdit((TV_DISPINFO *)pnm); break; case TVN_SINGLEEXPAND: case NM_DBLCLK: break; case NM_CLICK: { //if someone clicks on the selected item, force a selection change (to force a navigate)
DWORD dwPos = GetMessagePos(); TV_HITTESTINFO tvht; HTREEITEM hti; tvht.pt.x = GET_X_LPARAM(dwPos); tvht.pt.y = GET_Y_LPARAM(dwPos); ::ScreenToClient(_hwndTree, &tvht.pt); hti = TreeView_HitTest(_hwndTree, &tvht);
// But not if they click on the button, since that means that they
// are merely expanding/contracting and not selecting
if (hti && !(tvht.flags & TVHT_ONITEMBUTTON)) { _fSelectFromMouseClick = TRUE; TreeView_SelectItem(_hwndTree, hti); _OnSelChange(TRUE); _fSelectFromMouseClick = FALSE; } break; } case NM_RCLICK: { DWORD dwPos = GetMessagePos(); _fOkToRename = TRUE; lres = _OnContextMenu(GET_X_LPARAM(dwPos), GET_Y_LPARAM(dwPos)); _fOkToRename = FALSE; break; } default: break; } } // case ID_CONTROL
case ID_HEADER: { switch (pnm->code) { case HDN_TRACK: break; case HDN_ENDTRACK: ::InvalidateRect(_hwndTree, NULL, TRUE); break; default: break; } }
default: break; } return lres;}
HRESULT CNscTree::OnChange(LONG lEvent, LPCITEMIDLIST pidl1, LPCITEMIDLIST pidl2){ // review chrisny: better error return here.
_fHandlingShellNotification = TRUE; _OnChangeNotify(lEvent, pidl1, pidl2); _fHandlingShellNotification = FALSE; return S_OK;}
// in comctl32 v5 there is no way to programmatically select an item (in single expand mode)
// without expanding it, so we fake it here by setting _fIgnoreNextItemExpanding to true and then
// rejecting expansion when it is set
void CNscTree::_SelectNoExpand(HWND hwnd, HTREEITEM hti){ UINT uFlags = TVGN_CARET; if (IsOS(OS_WHISTLERORGREATER)) uFlags |= TVSI_NOSINGLEEXPAND; // new for v6
else if (_fSingleExpand) _fIgnoreNextItemExpanding = TRUE;
_fInExpand = TRUE; // Treeview will force expand the parents, make sure we know it's not the user clicking on items
TreeView_Select(hwnd, hti, uFlags); _fInExpand = FALSE; _fIgnoreNextItemExpanding = FALSE;}
void CNscTree::_SelectPidl(LPCITEMIDLIST pidl, BOOL fCreate, BOOL fReinsert){ HTREEITEM hti; // _ExpandToItem doesn't play well with empty pidl (i.e. desktop)
if (_mode == MODE_NORMAL && ILIsEqual(pidl, _pidlRoot)) hti = _FindFromRoot(NULL, pidl); else hti = _ExpandToItem(pidl, fCreate, fReinsert); if (hti != NULL) { _SelectNoExpand(_hwndTree, hti);#ifdef DEBUG
TraceHTREE(hti, TEXT("Found"));#endif
}}
HTREEITEM CNscTree::_ExpandToItem(LPCITEMIDLIST pidl, BOOL fCreate /*= TRUE*/, BOOL fReinsert /*= FALSE*/){ HTREEITEM hti = NULL; LPITEMIDLIST pidlItem = NULL; LPCITEMIDLIST pidlTemp = NULL; LPITEMIDLIST pidlParent; TV_ITEM tvi; IShellFolder *psf = NULL; IShellFolder *psfNext = NULL; HRESULT hr = S_OK;
#ifdef DEBUG
TracePIDLAbs(pidl, TEXT("Attempting to select"));#endif
// We need to do this so items that are rooted at the Desktop, are found
// correctly.
HTREEITEM htiParent = (_mode == MODE_NORMAL) ? TreeView_GetRoot(_hwndTree) : TVI_ROOT; ASSERT((_hwndTree != NULL) && (pidl != NULL)); if (_hwndTree == NULL) goto LGone;
// We should unify the "FindFromRoot" code path and this one.
pidlParent = _pidlRoot; if (ILIsEmpty(pidlParent)) { pidlTemp = pidl; SHGetDesktopFolder(&psf); } else { if ((pidlTemp = ILFindChild(pidlParent, pidl)) == NULL) { goto LGone; // not root match, no hti
}
// root match, carry on . . .
hr = IEBindToObject(pidlParent, &psf); }
if (FAILED(hr)) { goto LGone; } while (!ILIsEmpty(pidlTemp)) { if ((pidlItem = ILCloneFirst(pidlTemp)) == NULL) goto LGone; pidlTemp = _ILNext(pidlTemp);
// Since we are selecting a pidl, we need to make sure it's parent is visible.
// We do it this before the insert, so that we don't have to check for duplicates.
// when enumerating NTDev it goes from about 10min to about 8 seconds.
if (htiParent != TVI_ROOT) { // Check to see if it's expanded.
tvi.mask = TVIF_STATE; tvi.stateMask = (TVIS_EXPANDEDONCE | TVIS_EXPANDED | TVIS_EXPANDPARTIAL); tvi.hItem = htiParent; if (!TreeView_GetItem(_hwndTree, &tvi)) { goto LGone; }
// If not, Expand it.
if (!(tvi.state & TVIS_EXPANDED)) { _pidlExpandingTo = pidlItem; _ExpandNode(htiParent, TVE_EXPAND, 1); _pidlExpandingTo = NULL; } }
// Now that we have it enumerated, check to see if the child if there.
hti = _FindChild(psf, htiParent, pidlItem); // fReinsert will allow us to force the item to be reinserted
if (hti && fReinsert) { ASSERT(fCreate); TreeView_DeleteItem(_hwndTree, hti); hti = NULL; }
// Do we have a child in the newly expanded tree?
if (NULL == hti) { // No. We must have to create it.
if (!fCreate) { // But, we're not allowed to... Shoot.
goto LGone; }
if (S_OK != _InsertChild(htiParent, psf, pidlItem, FALSE, FALSE, DEFAULTORDERPOSITION, &hti)) { goto LGone; } }
if (htiParent != TVI_ROOT) { tvi.mask = TVIF_STATE; tvi.stateMask = (TVIS_EXPANDEDONCE | TVIS_EXPANDED | TVIS_EXPANDPARTIAL); tvi.hItem = htiParent; if (TreeView_GetItem(_hwndTree, &tvi)) { if (!(tvi.state & TVIS_EXPANDED)) { TreeView_SetChildren(_hwndTree, htiParent, NSC_CHILDREN_ADD); // Make sure the expand will do something
_fIgnoreNextItemExpanding = TRUE; _ExpandNode(htiParent, TVE_EXPAND | TVE_EXPANDPARTIAL, 1); _fIgnoreNextItemExpanding = FALSE; } } }
// we don't need to bind if its the last one
// -- a half-implemented ISF might not like this bind...
if (!ILIsEmpty(pidlTemp)) hr = psf->BindToObject(pidlItem, NULL, IID_PPV_ARG(IShellFolder, &psfNext));
ILFree(pidlItem); pidlItem = NULL; if (FAILED(hr)) goto LGone;
htiParent = hti; psf->Release(); psf = psfNext; psfNext = NULL; }LGone: if (psf != NULL) psf->Release(); if (psfNext != NULL) psfNext->Release(); if (pidlItem != NULL) ILFree(pidlItem);
return hti; }
HRESULT CNscTree::GetSelectedItem(LPITEMIDLIST * ppidl, int nItem){ HRESULT hr = E_INVALIDARG;
// nItem will be used in the future when we support multiple selections.
// GetSelectedItem() returns S_FALSE and (NULL == *ppidl) if not that many
// items are selected. Not yet implemented.
if (nItem > 0) { *ppidl = NULL; return S_FALSE; }
if (ppidl) { *ppidl = NULL; // Is the ListView still there?
if (_fIsSelectionCached) { // No, so get the selection that was saved before
// the listview was destroyed.
if (_pidlSelected) { *ppidl = ILClone(_pidlSelected); hr = S_OK; } else hr = S_FALSE; } else { HTREEITEM htiSelected = TreeView_GetSelection(_hwndTree);
if (htiSelected) { *ppidl = _GetFullIDList(htiSelected); hr = S_OK; } else hr = S_FALSE; } }
return hr;}
HRESULT CNscTree::SetSelectedItem(LPCITEMIDLIST pidl, BOOL fCreate, BOOL fReinsert, int nItem){ // nItem will be used in the future when we support multiple selections.
// Not yet implemented.
if (nItem > 0) { return S_FALSE; } // Override fCreate if the object no longer exists
DWORD dwAttributes = SFGAO_VALIDATE; fCreate = fCreate && SUCCEEDED(IEGetAttributesOf(pidl, &dwAttributes)); // We probably haven't seen the ChangeNotify yet, so we tell
// _SelectPidl to create any folders that are there
// Then select the pidl, expanding as necessary
_fInSelectPidl = TRUE; _SelectPidl(pidl, fCreate, fReinsert); _fInSelectPidl = FALSE;
return S_OK;}
//*** CNscTree::IWinEventHandler
HRESULT CNscTree::OnWinEvent(HWND hwnd, UINT uMsg, WPARAM wParam, LPARAM lParam, LRESULT *plres){ HRESULT hr = E_FAIL;
ULONG_PTR cookie = 0; // FUSION: When nsc calls out to 3rd party code we want it to use
// the process default context. This means that the 3rd party code will get
// v5 in the explorer process. However, if shell32 is hosted in a v6 process,
// then the 3rd party code will still get v6.
// Future enhancements to this codepath may include using the fusion manifest
// tab <noinherit> which basically surplants the activat(null) in the following
// codepath. This disables the automatic activation from user32 for the duration
// of this wndproc, essentially doing this null push.
// we need to do this here as well as in _SubClassTreeWndProc as someone could have
// set v6 context before getting in here (band site,...)
NT5_ActivateActCtx(NULL, &cookie);
switch (uMsg) { case WM_NOTIFY: *plres = _OnNotify((LPNMHDR)lParam); hr = S_OK; break; case WM_PALETTECHANGED: _OnPaletteChanged(wParam, lParam); // are we really supposed to return E_FAIL here?
break;
default: break; }
if (cookie != 0) NT5_DeactivateActCtx(cookie);
return hr;}
void CNscTree::_OnChangeNotify(LONG lEvent, LPCITEMIDLIST pidl, LPCITEMIDLIST pidlExtra){ switch (lEvent) { case SHCNE_RENAMEFOLDER: case SHCNE_RENAMEITEM: if (pidl && pidlExtra) _OnSHNotifyRename(pidl, pidlExtra); else ASSERT(FALSE); break; case SHCNE_DELETE: case SHCNE_RMDIR: case SHCNE_DRIVEREMOVED: if (pidl) _OnSHNotifyDelete(pidl, NULL, NULL); else ASSERT(FALSE); break;
case SHCNE_UPDATEITEM: // when nsc browses other namespaces, sometimes an updateitem could be fired
// on a pidl thats actually expanded in the tree, so check for it.
if (pidl) { IShellFolder* psf = NULL; LPCITEMIDLIST pidlChild; if (SUCCEEDED(_ParentFromItem(pidl, &psf, &pidlChild))) { LPITEMIDLIST pidlReal; if (SUCCEEDED(_IdlRealFromIdlSimple(psf, pidlChild, &pidlReal)) && pidlReal) { // zip files receive updateitem when they really mean updatedir
if (SHGetAttributes(psf, pidlReal, SFGAO_FOLDER | SFGAO_STREAM) == (SFGAO_FOLDER | SFGAO_STREAM)) { _OnSHNotifyUpdateDir(pidl); } _OnSHNotifyUpdateItem(pidl, pidlReal); ILFree(pidlReal); } psf->Release(); } } break;
case SHCNE_NETSHARE: case SHCNE_NETUNSHARE: if (pidl) _OnSHNotifyUpdateItem(pidl, NULL); break;
case SHCNE_CREATE: case SHCNE_MKDIR: case SHCNE_DRIVEADD: if (pidl) { _OnSHNotifyCreate(pidl, DEFAULTORDERPOSITION, NULL); if (SHCNE_MKDIR == lEvent && _pidlNewFolderParent && ILIsParent(_pidlNewFolderParent, pidl, TRUE)) // TRUE = immediate parent only
{ EVAL(SUCCEEDED(_EnterNewFolderEditMode(pidl))); } } break;
case SHCNE_UPDATEDIR: if (pidl) { _OnSHNotifyUpdateDir(pidl); } break;
case SHCNE_MEDIAREMOVED: case SHCNE_MEDIAINSERTED: if (pidl) { HTREEITEM hti = _FindFromRoot(NULL, pidl); if (hti) { if (lEvent == SHCNE_MEDIAREMOVED) { LPITEMIDLIST pidlSelected; if (SUCCEEDED(GetSelectedItem(&pidlSelected, 0))) { if (ILIsEqual(pidl, pidlSelected) || ILIsParent(pidl, pidlSelected, FALSE)) { IShellFolder *psf; if (SUCCEEDED(SHBindToIDListParent(pidl, IID_PPV_ARG(IShellFolder, &psf), NULL))) { BOOL fSelected = FALSE; for (HTREEITEM htiSelect = TreeView_GetNextSibling(_hwndTree, hti); htiSelect; htiSelect = TreeView_GetNextSibling(_hwndTree, htiSelect)) { PORDERITEM poi = _GetTreeOrderItem(htiSelect); if (poi) { if (!SHGetAttributes(psf, poi->pidl, SFGAO_REMOVABLE)) { _SelectNoExpand(_hwndTree, htiSelect); fSelected = TRUE; break; } } }
if (!fSelected) { _SelectNoExpand(_hwndTree, TreeView_GetParent(_hwndTree, hti)); } psf->Release(); } } ILFree(pidlSelected); } TreeView_DeleteChildren(_hwndTree, hti); TreeView_Expand(_hwndTree, hti, TVE_COLLAPSE | TVE_COLLAPSERESET); // reset the item
TreeView_SetChildren(_hwndTree, hti, NSC_CHILDREN_REMOVE); } else { TreeView_SetChildren(_hwndTree, hti, NSC_CHILDREN_CALLBACK); } _TreeInvalidateItemInfo(hti, TVIF_TEXT); } } break; case SHCNE_DRIVEADDGUI: case SHCNE_SERVERDISCONNECT: case SHCNE_ASSOCCHANGED: break;
case SHCNE_UPDATEIMAGE: if (pidl) { int iIndex; if (pidlExtra) { // new style update image notification.....
iIndex = SHHandleUpdateImage(pidlExtra); if (iIndex == -1) break; } else iIndex = *(int UNALIGNED *)((BYTE*)pidl + 2); _InvalidateImageIndex(NULL, iIndex); } break; case SHCNE_EXTENDED_EVENT: { SHChangeDWORDAsIDList UNALIGNED *pdwidl = (SHChangeDWORDAsIDList UNALIGNED *)pidl; INT_PTR iEvent = pdwidl->dwItem1;
switch (iEvent) { case SHCNEE_ORDERCHANGED: if (EVAL(pidl)) { if (_fDropping || // If WE are dropping.
_fInLabelEdit || // We're editing a name (Kicks us out)
SHChangeMenuWasSentByMe(this, pidl) || // Ignore if we sent it.
(_mode == MODE_HISTORY)) // Always ignore history changes
{ TraceMsg(TF_NSC, "NSCBand: Ignoring Change Notify: We sent"); //ignore the notification
} else { TraceMsg(TF_BAND, "NSCBand: OnChange SHCNEE_ORDERCHANGED accepted"); _dwOrderSig++;
HTREEITEM htiRoot = _FindFromRoot(TVI_ROOT, pidlExtra); if (htiRoot != NULL) _UpdateDir(htiRoot, FALSE); } } break; case SHCNEE_WININETCHANGED: { if (pdwidl->dwItem2 & (CACHE_NOTIFY_SET_ONLINE | CACHE_NOTIFY_SET_OFFLINE)) { BOOL fOnline = !SHIsGlobalOffline(); if ((fOnline && !_fOnline) || (!fOnline && _fOnline)) { // State changed
_fOnline = fOnline; _OnSHNotifyOnlineChange(TVI_ROOT, _fOnline); } } if (pdwidl->dwItem2 & (CACHE_NOTIFY_ADD_URL | CACHE_NOTIFY_DELETE_URL | CACHE_NOTIFY_DELETE_ALL | CACHE_NOTIFY_URL_SET_STICKY | CACHE_NOTIFY_URL_UNSET_STICKY)) { // Something in the cache changed
_OnSHNotifyCacheChange(TVI_ROOT, pdwidl->dwItem2); } break; } } break; } break; } return;}
// note, this duplicates SHGetRealIDL() so we work in non integrated shell mode
// WARNING: if it is not a file system pidl SFGAO_FILESYSTEM, we don't need to do this...
// but this is only called in the case of SHCNE_CREATE for shell notify
// and all shell notify pidls are SFGAO_FILESYSTEM
HRESULT CNscTree::_IdlRealFromIdlSimple(IShellFolder *psf, LPCITEMIDLIST pidlSimple, LPITEMIDLIST *ppidlReal){ WCHAR wszPath[MAX_PATH]; ULONG cbEaten; HRESULT hr = S_OK; if (FAILED(DisplayNameOf(psf, pidlSimple, SHGDN_FORPARSING | SHGDN_INFOLDER, wszPath, ARRAYSIZE(wszPath))) || FAILED(psf->ParseDisplayName(NULL, NULL, wszPath, &cbEaten, ppidlReal, NULL))) { hr = SHILClone(pidlSimple, ppidlReal); // we don't own the lifetime of pidlSimple
}
return hr;}
HRESULT CNscTree::Refresh(void){ _bSynchId++; if (_bSynchId >= 16) _bSynchId = 0;
TraceMsg(TF_NSC, "Expensive Refresh of tree"); _htiActiveBorder = NULL; HRESULT hr = S_OK; if (_pnscProxy) { DWORD dwStyle, dwExStyle; if (SUCCEEDED(_pnscProxy->RefreshFlags(&dwStyle, &dwExStyle, &_grfFlags))) { dwStyle = _SetStyle(dwStyle); // initializes new _style and returns old one
if ((dwStyle ^ _style) & ~WS_VISIBLE) // don't care if only visible changed
{ DWORD dwMask = (_style | dwStyle) & ~WS_VISIBLE; // don't want to change visible style
SetWindowBits(_hwndTree, GWL_STYLE, dwMask, _style); }
dwExStyle = _SetExStyle(dwExStyle); if (dwExStyle != _dwExStyle) TreeView_SetExtendedStyle(_hwndTree, _dwExStyle, dwExStyle | _dwExStyle); } }
if (MODE_NORMAL == _mode) { BOOL fOrdered; _fUpdate = TRUE; _StartBackgroundEnum(TreeView_GetChild(_hwndTree, TVI_ROOT), _pidlRoot, &fOrdered, TRUE); _fUpdate = FALSE; } else { LPITEMIDLIST pidlRoot; hr = SHILClone(_pidlRoot, &pidlRoot); // Need to do this because it's freed
if (SUCCEEDED(hr)) { HTREEITEM htiSelected = TreeView_GetSelection(_hwndTree); TV_ITEM tvi; tvi.mask = TVIF_HANDLE | TVIF_STATE; tvi.stateMask = TVIS_EXPANDED; tvi.hItem = (HTREEITEM)htiSelected; BOOL fExpanded = (TreeView_GetItem(_hwndTree, &tvi) && (tvi.state & TVIS_EXPANDED));
LPITEMIDLIST pidlSelect; GetSelectedItem(&pidlSelect, 0); _ChangePidlRoot(pidlRoot); if (pidlSelect) { _Expand(pidlSelect, fExpanded ? 1 : 0); ILFree(pidlSelect); }
ILFree(pidlRoot); } }
return hr;}
void CNscTree::_CacheDetails(){ if (_ulDisplayCol == (ULONG)-1) { _ulSortCol = _ulDisplayCol = 0; if (_psf2Cache) { _psf2Cache->GetDefaultColumn(0, &_ulSortCol, &_ulDisplayCol); } }}
HRESULT CNscTree::_GetDisplayNameOf(LPCITEMIDLIST pidl, DWORD uFlags, LPSHELLDETAILS pdetails){ ASSERT(_psfCache); _CacheDetails(); if (_ulDisplayCol) return _psf2Cache->GetDetailsOf(pidl, _ulDisplayCol, pdetails); return _psfCache->GetDisplayNameOf(pidl, uFlags, &pdetails->str);}
// if fSort, then compare for sort, else compare for existence.
HRESULT CNscTree::_CompareIDs(IShellFolder *psf, LPITEMIDLIST pidl1, LPITEMIDLIST pidl2){ _CacheDetails();
return psf->CompareIDs(_ulSortCol, pidl1, pidl2);}
HRESULT CNscTree::_ParentFromItem(LPCITEMIDLIST pidl, IShellFolder** ppsfParent, LPCITEMIDLIST *ppidlChild){ return IEBindToParentFolder(pidl, ppsfParent, ppidlChild);}
COLORREF CNscTree::_GetRegColor(COLORREF clrDefault, LPCTSTR pszName){ // Fetch the specified alternate color
COLORREF clrValue; DWORD cbData = sizeof(clrValue); if (FAILED(SKGetValue(SHELLKEY_HKCU_EXPLORER, NULL, pszName, NULL, &clrValue, &cbData))) { return clrDefault; } return clrValue;}
LRESULT CNscTree::_OnCDNotify(LPNMCUSTOMDRAW pnm){ LRESULT lres = CDRF_DODEFAULT;
ASSERT(pnm->hdr.idFrom == ID_CONTROL);
if (_dwFlags & NSS_NORMALTREEVIEW) { LPNMTVCUSTOMDRAW pnmTVCustomDraw = (LPNMTVCUSTOMDRAW) pnm; if (pnmTVCustomDraw->nmcd.dwDrawStage == CDDS_PREPAINT) { if (_fShowCompColor) { return CDRF_NOTIFYITEMDRAW; } else { return lres; } }
if (pnmTVCustomDraw->nmcd.dwDrawStage == CDDS_ITEMPREPAINT) { PORDERITEM pOrderItem = GetPoi(pnmTVCustomDraw->nmcd.lItemlParam); if (pOrderItem && pOrderItem->pidl) { LPCITEMIDLIST pidl = _CacheParentShellFolder((HTREEITEM)pnmTVCustomDraw->nmcd.dwItemSpec, pOrderItem->pidl); if (pidl) { DWORD dwAttribs = SHGetAttributes(_psfCache, pidl, SFGAO_COMPRESSED | SFGAO_ENCRYPTED); // either compressed, or encrypted, can never be both
if (dwAttribs & SFGAO_COMPRESSED) { // If it is the item is hi-lited (selected, and has focus), blue text is not visible with the hi-lite...
if ((pnmTVCustomDraw->nmcd.uItemState & CDIS_SELECTED) && (pnmTVCustomDraw->nmcd.uItemState & CDIS_FOCUS)) pnmTVCustomDraw->clrText = GetSysColor(COLOR_HIGHLIGHTTEXT); else pnmTVCustomDraw->clrText = _GetRegColor(RGB(0, 0, 255), TEXT("AltColor")); // default Blue
} else if (dwAttribs & SFGAO_ENCRYPTED) { if ((pnmTVCustomDraw->nmcd.uItemState & CDIS_SELECTED) && (pnmTVCustomDraw->nmcd.uItemState & CDIS_FOCUS)) pnmTVCustomDraw->clrText = GetSysColor(COLOR_HIGHLIGHTTEXT); else pnmTVCustomDraw->clrText = _GetRegColor(RGB(19, 146, 13), TEXT("AltEncryptionColor")); // default Luna Mid Green
} } } }
return lres; }
switch (pnm->dwDrawStage) { case CDDS_PREPAINT: if (NSS_BROWSERSELECT & _dwFlags) lres = CDRF_NOTIFYITEMDRAW; break; case CDDS_ITEMPREPAINT: { //APPCOMPAT davemi: why is comctl giving us empty rects?
if (IsRectEmpty(&(pnm->rc))) break; PORDERITEM poi = GetPoi(pnm->lItemlParam); DWORD dwFlags = 0; COLORREF clrBk, clrText; LPNMTVCUSTOMDRAW pnmtv = (LPNMTVCUSTOMDRAW)pnm; TV_ITEM tvi; TCHAR sz[MAX_URL_STRING]; tvi.mask = TVIF_TEXT | TVIF_HANDLE | TVIF_STATE; tvi.stateMask = TVIS_EXPANDED | TVIS_STATEIMAGEMASK | TVIS_DROPHILITED; tvi.pszText = sz; tvi.cchTextMax = MAX_URL_STRING; tvi.hItem = (HTREEITEM)pnm->dwItemSpec; if (!TreeView_GetItem(_hwndTree, &tvi)) break; //
// See if we have fetched greyed/pinned information for this item yet
//
ITEMINFO * pii = GetPii(pnm->lItemlParam); pii->fFetched = TRUE;
if (pii->fGreyed && !(_mode & MODE_CONTROL)) dwFlags |= DIGREYED; if (pii->fPinned) dwFlags |= DIPINNED;
if (!pii->fNavigable) dwFlags |= DIFOLDER; dwFlags |= DIICON; if (_style & TVS_RTLREADING) dwFlags |= DIRTLREADING;
clrBk = TreeView_GetBkColor(_hwndTree); clrText = GetSysColor(COLOR_WINDOWTEXT);
//if we're renaming an item, don't draw any text for it (otherwise it shows behind the item)
if (tvi.hItem == _htiRenaming) sz[0] = 0;
if (tvi.state & TVIS_EXPANDED) dwFlags |= DIFOLDEROPEN; if (!(_dwFlags & NSS_MULTISELECT) && ((pnm->uItemState & CDIS_SELECTED) || (tvi.state & TVIS_DROPHILITED))) { if (_fHasFocus || tvi.state & TVIS_DROPHILITED) { clrBk = GetSysColor(COLOR_HIGHLIGHT); clrText = GetSysColor(COLOR_HIGHLIGHTTEXT); } else { clrBk = GetSysColor(COLOR_BTNFACE); }// dwFlags |= DIFOCUSRECT;
}
if (pnm->uItemState & CDIS_HOT) { if (!(_mode & MODE_CONTROL)) dwFlags |= DIHOT; clrText = GetSysColor(COLOR_HIGHLIGHTTEXT);
if (clrText == clrBk) clrText = GetSysColor(COLOR_HIGHLIGHT); }
if ((_dwFlags & NSS_MULTISELECT) && (pnm->uItemState & CDIS_SELECTED)) dwFlags |= DIACTIVEBORDER | DISUBFIRST | DISUBLAST;
if (tvi.state & NSC_TVIS_MARKED) { if (_dwFlags & NSS_MULTISELECT) { if (_fHasFocus) { clrBk = GetSysColor(COLOR_HIGHLIGHT); clrText = GetSysColor(COLOR_HIGHLIGHTTEXT); } else { clrBk = GetSysColor(COLOR_BTNFACE); } } else { dwFlags |= DIACTIVEBORDER; //top level item
if (_IsTopParentItem((HTREEITEM)pnm->dwItemSpec)) { dwFlags |= DISUBFIRST; if (!(tvi.state & TVIS_EXPANDED)) dwFlags |= DISUBLAST; } else // lower level items
{ HTREEITEM hti;
dwFlags |= DISUBITEM; if (((HTREEITEM)pnm->dwItemSpec) == _htiActiveBorder) dwFlags |= DISUBFIRST; hti = TreeView_GetNextVisible(_hwndTree, (HTREEITEM)pnm->dwItemSpec); if ((hti && !_IsMarked(hti)) || (hti == NULL)) dwFlags |= DISUBLAST; } } }
if ((_dwFlags & NSS_HEADER) && _hwndHdr && _CacheParentShellFolder((HTREEITEM)pnm->dwItemSpec, poi->pidl) && _psf2Cache) { // with header we don't draw active order because it looks ugly,
// but with multiselect we do because that's how we differentiate selected items
if (!(_dwFlags & NSS_MULTISELECT)) dwFlags &= ~DIACTIVEBORDER; RECT rc;
CopyRect(&rc, &(pnm->rc)); for (int i=0; i<DPA_GetPtrCount(_hdpaColumns); i++) { RECT rcHeader; int iLevel = 0; HEADERINFO *phinfo = (HEADERINFO *)DPA_GetPtr(_hdpaColumns, i); ASSERT(phinfo); Header_GetItemRect(_hwndHdr, i, &rcHeader); rc.left = rcHeader.left; rc.right = rcHeader.right; if (i == 0) //it is name column
{ iLevel = pnmtv->iLevel; //use sz set above in the function
} else { // in multiselect draw border only around the name
dwFlags &= ~DIACTIVEBORDER; dwFlags = 0; if (phinfo->fmt & LVCFMT_RIGHT) dwFlags |= DIRIGHT; clrBk = TreeView_GetBkColor(_hwndTree); clrText = GetSysColor(COLOR_WINDOWTEXT);
sz[0] = 0;
VARIANT var; if (SUCCEEDED(_psf2Cache->GetDetailsEx(poi->pidl, phinfo->pscid, &var))) { VariantToStr(&var, sz, ARRAYSIZE(sz)); } } _DrawItem((HTREEITEM)pnm->dwItemSpec, sz, pnm->hdc, &rc, dwFlags, iLevel, clrBk, clrText); } } else { _DrawItem((HTREEITEM)pnm->dwItemSpec, sz, pnm->hdc, &(pnm->rc), dwFlags, pnmtv->iLevel, clrBk, clrText); } lres = CDRF_SKIPDEFAULT; break; } case CDDS_POSTPAINT: break; } return lres;}
// *******droptarget implementation.
void CNscTree::_DtRevoke(){ if (_fDTRegistered) { RevokeDragDrop(_hwndTree); _fDTRegistered = FALSE; }}
void CNscTree::_DtRegister(){ if (!_fDTRegistered && (_dwFlags & NSS_DROPTARGET)) { if (::IsWindow(_hwndTree)) { HRESULT hr = THR(RegisterDragDrop(_hwndTree, SAFECAST(this, IDropTarget*))); _fDTRegistered = BOOLIFY(SUCCEEDED(hr)); } else ASSERT(FALSE); }}
HRESULT CNscTree::GetWindowsDDT(HWND * phwndLock, HWND * phwndScroll){ if (!::IsWindow(_hwndTree)) { ASSERT(FALSE); return S_FALSE; } *phwndLock = /*_hwndDD*/_hwndTree; *phwndScroll = _hwndTree; return S_OK;}const int iInsertThresh = 6;
// We use this as the sentinal "This is where you started"
#define DDT_SENTINEL ((DWORD_PTR)(INT_PTR)-1)
HRESULT CNscTree::HitTestDDT(UINT nEvent, LPPOINT ppt, DWORD_PTR *pdwId, DWORD * pdwDropEffect){ switch (nEvent) { case HTDDT_ENTER: break; case HTDDT_LEAVE: { _fDragging = FALSE; _fDropping = FALSE; DAD_ShowDragImage(FALSE); TreeView_SetInsertMark(_hwndTree, NULL, !_fInsertBefore); TreeView_SelectDropTarget(_hwndTree, NULL); DAD_ShowDragImage(TRUE); break; } case HTDDT_OVER: { // review chrisny: make function TreeView_InsertMarkHittest!!!!!
RECT rc; TV_HITTESTINFO tvht; HTREEITEM htiOver; // item to insert before or after.
BOOL fWasInserting = BOOLIFY(_fInserting); BOOL fOldInsertBefore = BOOLIFY(_fInsertBefore); TV_ITEM tvi; PORDERITEM poi = NULL; IDropTarget *pdtgt = NULL; HRESULT hr; LPITEMIDLIST pidl; _fDragging = TRUE; *pdwDropEffect = DROPEFFECT_NONE; // dropping from without.
tvht.pt = *ppt; htiOver = TreeView_HitTest(_hwndTree, &tvht); // if no hittest assume we are dropping on the evil root.
if (htiOver != NULL) { TreeView_GetItemRect(_hwndTree, (HTREEITEM)htiOver, &rc, TRUE); tvi.mask = TVIF_STATE | TVIF_PARAM | TVIF_HANDLE; tvi.stateMask = TVIS_EXPANDED; tvi.hItem = (HTREEITEM)htiOver; if (TreeView_GetItem(_hwndTree, &tvi)) poi = GetPoi(tvi.lParam); if (poi == NULL) { ASSERT(FALSE); return S_FALSE; } } else if (_mode != MODE_NORMAL) //need parity with win2k Explorer band
{ htiOver = TVI_ROOT; }
// NO DROPPY ON HISTORY
if (_mode & MODE_HISTORY) { *pdwId = (DWORD_PTR)(htiOver); *pdwDropEffect = DROPEFFECT_NONE; // dropping from without.
return S_OK; }
pidl = (poi == NULL) ? _pidlRoot : poi->pidl; pidl = _CacheParentShellFolder(htiOver, pidl); if (pidl) { // Is this the desktop pidl?
if (ILIsEmpty(pidl)) { // Desktop's GetUIObject does not support the Empty pidl, so
// create the view object.
hr = _psfCache->CreateViewObject(_hwndTree, IID_PPV_ARG(IDropTarget, &pdtgt)); } else hr = _psfCache->GetUIObjectOf(_hwndTree, 1, (LPCITEMIDLIST *)&pidl, IID_PPV_ARG_NULL(IDropTarget, &pdtgt)); }
_fInserting = ((htiOver != TVI_ROOT) && ((ppt->y < (rc.top + iInsertThresh) || (ppt->y > (rc.bottom - iInsertThresh))) || !pdtgt)); // review chrisny: do I need folderstart == folder over?
// If in normal mode, we never want to insert before, always _ON_...
if (_mode != MODE_NORMAL && _fInserting) { ASSERT(poi); _iDragDest = poi->nOrder; // index of item within folder pdwId
if ((ppt->y < (rc.top + iInsertThresh)) || !pdtgt) _fInsertBefore = TRUE; else { ASSERT (ppt->y > (rc.bottom - iInsertThresh)); _fInsertBefore = FALSE; } if (_iDragSrc != -1) *pdwDropEffect = DROPEFFECT_MOVE; // moving from within.
else *pdwDropEffect = DROPEFFECT_NONE; // dropping from without.
// inserting, drop target is actually parent folder of this item
if (_fInsertBefore || ((htiOver != TVI_ROOT) && !(tvi.state & TVIS_EXPANDED))) { _htiDropInsert = TreeView_GetParent(_hwndTree, (HTREEITEM)htiOver); } else _htiDropInsert = htiOver; if (_htiDropInsert == NULL) _htiDropInsert = TVI_ROOT; *pdwId = (DWORD_PTR)(_htiDropInsert); } else { _htiDropInsert = htiOver; *pdwId = (DWORD_PTR)(htiOver); _iDragDest = -1; // no insertion point.
*pdwDropEffect = DROPEFFECT_NONE; }
// if we're over the item we're dragging, don't allow drop here
if ((_htiDragging == htiOver) || (IsParentOfItem(_hwndTree, _htiDragging, htiOver))) { *pdwDropEffect = DROPEFFECT_NONE; *pdwId = DDT_SENTINEL; _fInserting = FALSE; ATOMICRELEASE(pdtgt); }
// update UI
if (_htiCur != (HTREEITEM)htiOver || fWasInserting != BOOLIFY(_fInserting) || fOldInsertBefore != BOOLIFY(_fInsertBefore)) { // change in target
_dwLastTime = GetTickCount(); // keep track for auto-expanding the tree
DAD_ShowDragImage(FALSE); if (_fInserting) { TraceMsg(TF_NSC, "NSCBand: drop insert now"); if (htiOver != TVI_ROOT) { if (_mode != MODE_NORMAL) { TreeView_SelectDropTarget(_hwndTree, NULL); TreeView_SetInsertMark(_hwndTree, htiOver, !_fInsertBefore); } } } else { TraceMsg(TF_NSC, "NSCBand: drop select now"); if (_mode != MODE_NORMAL) TreeView_SetInsertMark(_hwndTree, NULL, !_fInsertBefore);
if (htiOver != TVI_ROOT) { if (pdtgt) { TreeView_SelectDropTarget(_hwndTree, htiOver); } else if (_mode != MODE_NORMAL) { // We do not want to select the drop target in normal mode
// because it causes a weird flashing of some item unrelated
// to the drag and drop when the drop is not supported.
TreeView_SelectDropTarget(_hwndTree, NULL); } } } ::UpdateWindow(_hwndTree); DAD_ShowDragImage(TRUE); } else { // No target change
// auto expand the tree
if (_htiCur) { DWORD dwNow = GetTickCount(); if ((dwNow - _dwLastTime) >= 1000) { _dwLastTime = dwNow; DAD_ShowDragImage(FALSE); _fAutoExpanding = TRUE; if (_htiCur != TVI_ROOT) TreeView_Expand(_hwndTree, _htiCur, TVE_EXPAND); _fAutoExpanding = FALSE; ::UpdateWindow(_hwndTree); DAD_ShowDragImage(TRUE); } } } _htiCur = (HTREEITEM)htiOver; ATOMICRELEASE(pdtgt); } break; } return S_OK;}
HRESULT CNscTree::GetObjectDDT(DWORD_PTR dwId, REFIID riid, void **ppv){ HRESULT hr = S_FALSE;
if (dwId != DDT_SENTINEL) { LPCITEMIDLIST pidl = _CacheParentShellFolder((HTREEITEM)dwId, NULL); if (pidl) { if (ILIsEmpty(pidl)) hr = _psfCache->CreateViewObject(_hwndTree, riid, ppv); else hr = _psfCache->GetUIObjectOf(_hwndTree, 1, &pidl, riid, NULL, ppv); } } return hr;}
HRESULT CNscTree::OnDropDDT(IDropTarget *pdt, IDataObject *pdtobj, DWORD * pgrfKeyState, POINTL pt, DWORD *pdwEffect){ HRESULT hr; _fAsyncDrop = FALSE; //ASSUME
_fDropping = TRUE;
// move within same folder, else let Drop() handle it.
if (_iDragSrc >= 0) { if (_htiFolderStart == _htiDropInsert && _mode != MODE_NORMAL) { if (_iDragSrc != _iDragDest) // no moving needed
{ int iNewPos = _fInsertBefore ? (_iDragDest - 1) : _iDragDest; if (_MoveNode(_iDragSrc, iNewPos, _pidlDrag)) { TraceMsg(TF_NSC, "NSCBand: Reordering"); _fDropping = TRUE; _Dropped(); // Remove this notify message immediately (so _fDropping is set
// and we'll ignore this event in above OnChange method)
//
_FlushNotifyMessages(_hwndTree); _fDropping = FALSE; } Pidl_Set(&_pidlDrag, NULL); } DragLeave(); _htiCur = _htiFolderStart = NULL; _htiDropInsert = (HTREEITEM)-1; _fDragging = _fInserting = _fDropping = FALSE; _iDragDest = -1; hr = S_FALSE; // handled
} else { hr = S_OK; } } else { // the item will get created in SHNotifyCreate()
TraceMsg(TF_NSC, "NSCBand: Dropped and External Item");
BOOL fSafe = TRUE; LPITEMIDLIST pidl;
if (SUCCEEDED(SHPidlFromDataObject(pdtobj, &pidl, NULL, 0))) { fSafe = IEIsLinkSafe(_hwndParent, pidl, ILS_ADDTOFAV); ILFree(pidl); }
if (fSafe) { _fAsyncDrop = TRUE; hr = S_OK; } else { hr = S_FALSE; } }
TreeView_SetInsertMark(_hwndTree, NULL, !_fInsertBefore); TreeView_SelectDropTarget(_hwndTree, NULL);
ILFree(_pidlDrag); _pidlDrag = NULL;
return hr;}
IStream * CNscTree::GetOrderStream(LPCITEMIDLIST pidl, DWORD grfMode){ // only do this for favorites
if (!ILIsEmpty(pidl) && (_mode & MODE_FAVORITES)) return OpenPidlOrderStream((LPCITEMIDLIST)CSIDL_FAVORITES, pidl, REG_SUBKEY_FAVORITESA, grfMode); return NULL;}
BOOL CNscTree::_MoveNode(int iDragSrc, int iNewPos, LPITEMIDLIST pidl){ HTREEITEM hti, htiAfter = TVI_LAST, htiDel = NULL; // if we are not moving and not dropping directly on a folder with no insert.
if ((iDragSrc == iNewPos) && (iNewPos != -1)) return FALSE; // no need to move
int i = 0; for (hti = TreeView_GetChild(_hwndTree, _htiDropInsert); hti; hti = TreeView_GetNextSibling(_hwndTree, hti), i++) { if (i == iDragSrc) htiDel = hti; // save node to be deleted, can't deelete it while enumerating
// cuz the treeview will go down the tubes.
if (i == iNewPos) htiAfter = hti; } if (iNewPos == -1) // must be the first item
htiAfter = TVI_FIRST; // add before delete to handle add after deleteable item case.
_AddItemToTree(_htiDropInsert, pidl, I_CHILDRENCALLBACK, _iDragDest, htiAfter, FALSE); if (htiDel) TreeView_DeleteItem(_hwndTree, htiDel);
_PopulateOrderList(_htiDropInsert);
_fWeChangedOrder = TRUE; return TRUE;}
void CNscTree::_Dropped(void){ // Persist the new order out to the registry
LPITEMIDLIST pidl = _GetFullIDList(_htiDropInsert); if (pidl) { IStream* pstm = GetOrderStream(pidl, STGM_WRITE | STGM_CREATE); if (pstm) { if (_CacheShellFolder(_htiDropInsert)) {#ifdef DEBUG
if (_hdpaOrd) { for (int i=0; i<DPA_GetPtrCount(_hdpaOrd); i++) { PORDERITEM poi = (PORDERITEM)DPA_GetPtr(_hdpaOrd, i); if (poi) { ASSERTMSG(poi->nOrder >= 0, "nsc saving bogus order list nOrder (%d), get reljai", poi->nOrder); } } }#endif
OrderList_SaveToStream(pstm, _hdpaOrd, _psfCache); // remember we are now ordered.
if (_htiDropInsert == TVI_ROOT) { _fOrdered = TRUE; } else { PORDERITEM poi = _GetTreeOrderItem(_htiDropInsert); if (poi) { poi->lParam = (DWORD)FALSE; } } // Notify everyone that the order changed
SHSendChangeMenuNotify(this, SHCNEE_ORDERCHANGED, 0, pidl); _dwOrderSig++; } pstm->Release(); } ILFree(pidl); } DPA_Destroy(_hdpaOrd); _hdpaOrd = NULL;
_UpdateActiveBorder(_htiDropInsert);}
CNscTree::CSelectionContextMenu::~CSelectionContextMenu(){ ATOMICRELEASE(_pcmSelection); ATOMICRELEASE(_pcm2Selection);}
HRESULT CNscTree::CSelectionContextMenu::QueryInterface(REFIID riid, void **ppv){ static const QITAB qit[] = { QITABENT(CNscTree::CSelectionContextMenu, IContextMenu2), // IID_IContextMenu2
QITABENTMULTI(CNscTree::CSelectionContextMenu, IContextMenu, IContextMenu2), // IID_IContextMenu
{ 0 }, }; return QISearch(this, qit, riid, ppv);}
ULONG CNscTree::CSelectionContextMenu::AddRef(void){ CComObject<CNscTree> *pnsc = IToClass(CComObject<CNscTree>, _scm, this); _ulRefs++; return pnsc->AddRef();}
ULONG CNscTree::CSelectionContextMenu::Release(void){ CComObject<CNscTree> *pnsc = IToClass(CComObject<CNscTree>, _scm, this); ASSERT(_ulRefs > 0); _ulRefs--; if (0 == _ulRefs) { ATOMICRELEASE(_pcmSelection); ATOMICRELEASE(_pcm2Selection); } return pnsc->Release();}
HRESULT CNscTree::CSelectionContextMenu::QueryContextMenu(HMENU hmenu, UINT indexMenu, UINT idCmdFirst, UINT idCmdLast, UINT uFlags){ if (NULL == _pcmSelection) { return E_FAIL; } else { return _pcmSelection->QueryContextMenu(hmenu, indexMenu, idCmdFirst, idCmdLast, uFlags); }}
HRESULT CNscTree::CSelectionContextMenu::InvokeCommand(LPCMINVOKECOMMANDINFO pici){ HTREEITEM hti; CNscTree* pnsc = IToClass(CNscTree, _scm, this); UINT idCmd; if (!HIWORD(pici->lpVerb)) { idCmd = LOWORD(pici->lpVerb); } else { return E_FAIL; } HRESULT hr = pnsc->_QuerySelection(NULL, &hti); if (SUCCEEDED(hr)) { pnsc->_ApplyCmd(hti, _pcmSelection, idCmd); } return hr;}
HRESULT CNscTree::CSelectionContextMenu::HandleMenuMsg(UINT uMsg, WPARAM wParam, LPARAM lParam){ if (NULL == _pcm2Selection) { return E_FAIL; } else { // HACK alert. Work around bug in win95 user code for WM_DRAWITEM that sign extends
// itemID
if (!g_fRunningOnNT && WM_DRAWITEM == uMsg) { LPDRAWITEMSTRUCT lpDraw = (LPDRAWITEMSTRUCT)lParam; if (0xFFFF0000 == (lpDraw->itemID & 0xFFFF0000) && (lpDraw->itemID & 0xFFFF) >= FCIDM_BROWSERFIRST && (lpDraw->itemID & 0xFFFF) <= FCIDM_BROWSERLAST) { lpDraw->itemID = lpDraw->itemID & 0xFFFF; } } return _pcm2Selection->HandleMenuMsg(uMsg,wParam,lParam); }}
IContextMenu *CNscTree::CSelectionContextMenu::_QuerySelection(){ CNscTree* pnsc = IToClass(CNscTree, _scm, this); ATOMICRELEASE(_pcmSelection); ATOMICRELEASE(_pcm2Selection); pnsc->_QuerySelection(&_pcmSelection, NULL); if (_pcmSelection) { _pcmSelection->QueryInterface(IID_PPV_ARG(IContextMenu2, &_pcm2Selection)); AddRef(); return SAFECAST(this, IContextMenu*); } return NULL;}
LRESULT CALLBACK CNscTree::s_SubClassTreeWndProc( HWND hwnd, UINT uMsg, WPARAM wParam, LPARAM lParam, UINT_PTR uIdSubclass, DWORD_PTR dwRefData){
CNscTree* pns = (CNscTree*)dwRefData; ASSERT(pns); if (pns == NULL) return 0;
ULONG_PTR cookie = 0; // FUSION: When nsc calls out to 3rd party code we want it to use
// the process default context. This means that the 3rd party code will get
// v5 in the explorer process. However, if shell32 is hosted in a v6 process,
// then the 3rd party code will still get v6.
// Future enhancements to this codepath may include using the fusion manifest
// tab <noinherit> which basically surplants the activat(null) in the following
// codepath. This disables the automatic activation from user32 for the duration
// of this wndproc, essentially doing this null push.
NT5_ActivateActCtx(NULL, &cookie); LRESULT lres = pns->_SubClassTreeWndProc(hwnd, uMsg, wParam, lParam); if (cookie != 0) NT5_DeactivateActCtx(cookie);
return lres;}
LRESULT CNscTree::_SubClassTreeWndProc(HWND hwnd, UINT uMsg, WPARAM wParam, LPARAM lParam){ LRESULT lres = 0; BOOL fCallDefWndProc = TRUE; switch (uMsg) { case WM_COMMAND: lres = _OnCommand(wParam, lParam); break;
case WM_SIZE: // if the width changes, we need to invalidate to redraw the ...'s at the end of the lines
if (GET_X_LPARAM(lParam) != _cxOldWidth) { //FEATURE: be a bit more clever and only inval the right part where the ... can be
::InvalidateRect(_hwndTree, NULL, FALSE); _cxOldWidth = GET_X_LPARAM(lParam); } break; case WM_CONTEXTMENU: _OnContextMenu(GET_X_LPARAM(lParam), GET_Y_LPARAM(lParam)); return TRUE; break; case WM_INITMENUPOPUP: case WM_MEASUREITEM: case WM_DRAWITEM: if (_pcmSendTo) { _pcmSendTo->HandleMenuMsg(uMsg, wParam, lParam); return TRUE; } break;
case WM_NSCUPDATEICONOVERLAY: { NSC_OVERLAYCALLBACKINFO noci = {(DWORD) (lParam & 0x0FFFFFFF), (DWORD) ((lParam & 0xF0000000) >> 28) }; // make sure the magic numbers match
if (noci.nMagic == _bSynchId) { TVITEM tvi; tvi.mask = TVIF_STATE; tvi.stateMask = TVIS_OVERLAYMASK; tvi.state = 0; tvi.hItem = (HTREEITEM)wParam; // This can fail if the item was moved before the async icon
// extraction finished for that item.
if (TreeView_GetItem(_hwndTree, &tvi)) { tvi.state = INDEXTOOVERLAYMASK(noci.iOverlayIndex); TreeView_SetItem(_hwndTree, &tvi); } } } break;
case WM_NSCUPDATEICONINFO: { NSC_ICONCALLBACKINFO nici = {(DWORD) (lParam&0x00000FFF), (DWORD) ((lParam&0x00FFF000) >> 12), (DWORD) ((lParam&0x0F000000) >> 24), (DWORD) ((lParam&0xF0000000) >> 28) }; // make sure the magic numbers match
if (nici.nMagic == _bSynchId) { TVITEM tvi; tvi.mask = TVIF_PARAM | TVIF_IMAGE | TVIF_SELECTEDIMAGE; tvi.hItem = (HTREEITEM)wParam;
// This can fail if the item was moved before the async icon
// extraction finished for that item.
if (TreeView_GetItem(_hwndTree, &tvi)) { ITEMINFO* pii = GetPii(tvi.lParam);
pii->fGreyed = BOOLIFY(nici.nFlags & NSCICON_GREYED); pii->fPinned = BOOLIFY(nici.nFlags & NSCICON_PINNED); pii->fDontRefetch = BOOLIFY(nici.nFlags & NSCICON_DONTREFETCH);
tvi.iImage = nici.iIcon; tvi.iSelectedImage = nici.iOpenIcon;
TreeView_SetItem(_hwndTree, &tvi); } } } break;
case WM_NSCBACKGROUNDENUMDONE: { if (_fShouldShowAppStartCursor) { // Restore cursor now
_fShouldShowAppStartCursor = FALSE; SetCursor(LoadCursor(NULL, IDC_ARROW)); } NSC_BKGDENUMDONEDATA * pbedd; do { EnterCriticalSection(&_csBackgroundData); // Extract the first element of the list
pbedd = _pbeddList; if (pbedd) { _pbeddList = pbedd->pNext; } LeaveCriticalSection(&_csBackgroundData); if (pbedd) { pbedd->pNext = NULL; _EnumBackgroundDone(pbedd); } } while (pbedd); } break;
// UGLY: Win95/NT4 shell DefView code sends this msg and does not deal
// with the failure case. other ISVs do the same so this needs to stay forever
case CWM_GETISHELLBROWSER: return (LRESULT)SAFECAST(this, IShellBrowser*); // not ref counted!
case WM_TIMER: if (wParam == IDT_SELECTION) { ::KillTimer(_hwndTree, IDT_SELECTION); _OnSetSelection(); } break; case WM_HELP: { // Let controls provide thier own help (organize favorites). The default help
// also doesn't make sence for history (really need separate help id for history)
if (!(_mode & (MODE_CONTROL | MODE_HISTORY))) { if (_mode & MODE_FAVORITES) { const static DWORD aBrowseHelpIDs[] = { // Context Help IDs
ID_CONTROL, IDH_ORGFAVS_LIST, 0, 0 }; ::WinHelp((HWND)((LPHELPINFO) lParam)->hItemHandle, c_szHelpFile, HELP_WM_HELP, (ULONG_PTR)(LPTSTR) aBrowseHelpIDs); } else { // default help
const static DWORD aBrowseHelpIDs[] = { // Context Help IDs
ID_CONTROL, IDH_BROWSELIST, 0, 0 }; ::WinHelp((HWND)((LPHELPINFO) lParam)->hItemHandle, NULL, HELP_WM_HELP, (ULONG_PTR)(LPTSTR) aBrowseHelpIDs); } } } break;
case WM_SYSCOLORCHANGE: case WM_WININICHANGE: // _HandleWinIniChange does an item height calculation that
// depends on treeview having computed the default item height
// already. So we need to let treeview handle the settings
// change before calling _HandleWinIniChange. Also, we need
// to reset the height to default so that treeview will
// calculate a new default.
TreeView_SetItemHeight(hwnd, -1); lres = DefSubclassProc(hwnd, uMsg, wParam, lParam); _HandleWinIniChange(); break;
case WM_KEYDOWN: // Only do this when the CTRL key is not down
if (GetKeyState(VK_CONTROL) >= 0) { if (wParam == VK_MULTIPLY) { // We set _pidlNavigatingTo to NULL here to ensure that we will be doing full expands.
// When _pidlNavigatingTo is non null, we are doing partial expands by default, which is not
// what we want here.
Pidl_Set(&_pidlNavigatingTo, NULL);
_uDepth = (UINT)-1; // to recursive expand all the way to the end
lres = DefSubclassProc(hwnd, uMsg, wParam, lParam); _uDepth = 0; fCallDefWndProc = FALSE; // Don't call DefSubclassProc again.
} } break;
default: break; } if (fCallDefWndProc && lres == 0) lres = DefSubclassProc(hwnd, uMsg, wParam, lParam);
return lres;}
HRESULT CNscTree::_OnPaletteChanged(WPARAM wParam, LPARAM lParam){ // forward this to our child view by invalidating their window (they should never realize their palette
// in the foreground so they don't need the message parameters.) ...
RECT rc; ::GetClientRect(_hwndTree, &rc); ::InvalidateRect(_hwndTree, &rc, FALSE); return NOERROR;}
void CNscTree::_InvalidateImageIndex(HTREEITEM hItem, int iImage){ HTREEITEM hChild; TV_ITEM tvi; if (hItem) { tvi.mask = TVIF_SELECTEDIMAGE | TVIF_IMAGE; tvi.hItem = hItem; TreeView_GetItem(_hwndTree, &tvi); if (iImage == -1 || tvi.iImage == iImage || tvi.iSelectedImage == iImage) _TreeInvalidateItemInfo(hItem, 0); } hChild = TreeView_GetChild(_hwndTree, hItem); if (!hChild) return; for (; hChild; hChild = TreeView_GetNextSibling(_hwndTree, hChild)) _InvalidateImageIndex(hChild, iImage);}
void CNscTree::_TreeInvalidateItemInfo(HTREEITEM hItem, UINT mask){ TV_ITEM tvi;
tvi.mask = mask | TVIF_CHILDREN | TVIF_IMAGE | TVIF_SELECTEDIMAGE | TVIF_STATE; tvi.stateMask = TVIS_OVERLAYMASK; tvi.state = 0; tvi.hItem = hItem; tvi.cChildren = I_CHILDRENCALLBACK; tvi.iImage = I_IMAGECALLBACK; tvi.iSelectedImage = I_IMAGECALLBACK; tvi.pszText = LPSTR_TEXTCALLBACK; TreeView_SetItem(_hwndTree, &tvi);}
void CNscTree::_DrawActiveBorder(HDC hdc, LPRECT prc){ MoveToEx(hdc, prc->left, prc->top, NULL); LineTo(hdc, prc->right, prc->bottom);}
#define DXLEFT 8
#define MAGICINDENT 3
void CNscTree::_DrawIcon(HTREEITEM hti, HDC hdc, int iLevel, RECT *prc, DWORD dwFlags){ HIMAGELIST himl = TreeView_GetImageList(_hwndTree, TVSIL_NORMAL); TV_ITEM tvi; int dx, dy, x, y; tvi.mask = TVIF_SELECTEDIMAGE | TVIF_IMAGE | TVIF_HANDLE; tvi.hItem = hti; if (TreeView_GetItem(_hwndTree, &tvi)) { ImageList_GetIconSize(himl, &dx, &dy); if (!_fStartingDrag) x = DXLEFT; else x = 0; x += (iLevel * TreeView_GetIndent(_hwndTree)); // - ((dwFlags & DIFOLDEROPEN) ? 1 : 0);
y = prc->top + (((prc->bottom - prc->top) - dy) >> 1); int iImage = (dwFlags & DIFOLDEROPEN) ? tvi.iSelectedImage : tvi.iImage; ImageList_DrawEx(himl, iImage, hdc, x, y, 0, 0, CLR_NONE, GetSysColor(COLOR_WINDOW), (dwFlags & DIGREYED) ? ILD_BLEND50 : ILD_TRANSPARENT); if (dwFlags & DIPINNED) { ASSERT(_hicoPinned); DrawIconEx(hdc, x, y, _hicoPinned, 16, 16, 0, NULL, DI_NORMAL); } } return;}
#define TreeView_GetFont(hwnd) (HFONT)::SendMessage(hwnd, WM_GETFONT, 0, 0)
void CNscTree::_DrawItem(HTREEITEM hti, TCHAR * psz, HDC hdc , LPRECT prc, DWORD dwFlags, int iLevel, COLORREF clrbk, COLORREF clrtxt){ SIZE size; HIMAGELIST himl = TreeView_GetImageList(_hwndTree, TVSIL_NORMAL); HFONT hfont = NULL; HFONT hfontOld = NULL; int x, y, dx, dy; LOGFONT lf; COLORREF clrGreyed = GetSysColor(COLOR_BTNSHADOW); if ((dwFlags & DIGREYED) && (clrbk != clrGreyed)) { clrtxt = clrGreyed; }
// For the history and favorites bars, we use the default
// font (for UI consistency with the folders bar).
if (_mode != MODE_FAVORITES && _mode != MODE_HISTORY) hfont = (HFONT)GetStockObject(DEFAULT_GUI_FONT);
if ((dwFlags & DIHOT) && !(dwFlags & DIFOLDER)) { if (!hfont) hfont = TreeView_GetFont(_hwndTree);
// create the underline font
GetObject(hfont, sizeof(lf), &lf); lf.lfUnderline = TRUE; hfont = CreateFontIndirect(&lf); } if (hfont) hfontOld = (HFONT)SelectObject(hdc, hfont); GetTextExtentPoint32(hdc, psz, lstrlen(psz), &size); if (himl) ImageList_GetIconSize(himl, &dx, &dy); else { dx = 0; dy = 0; } x = prc->left + ((dwFlags & DIICON) ? (iLevel * TreeView_GetIndent(_hwndTree) + dx + DXLEFT + MAGICINDENT) : DXLEFT); if (_fStartingDrag) x -= DXLEFT; y = prc->top + (((prc->bottom - prc->top) - size.cy) >> 1);
UINT eto = ETO_CLIPPED; RECT rc; rc.left = prc->left + 2; rc.top = prc->top; rc.bottom = prc->bottom; rc.right = prc->right - 2;
SetBkColor(hdc, clrbk); eto |= ETO_OPAQUE; ExtTextOut(hdc, 0, 0, eto, &rc, NULL, 0, NULL);
SetTextColor(hdc, clrtxt); rc.left = x; rc.top = y; rc.bottom = rc.top + size.cy;
UINT uFormat = DT_VCENTER | DT_END_ELLIPSIS | DT_NOPREFIX; if (dwFlags & DIRIGHT) uFormat |= DT_RIGHT; if (dwFlags & DIRTLREADING) uFormat |= DT_RTLREADING; DrawTextWrap(hdc, psz, lstrlen(psz), &rc, uFormat);
if (dwFlags & DIICON) _DrawIcon(hti, hdc, iLevel, prc, dwFlags); if (hfontOld) SelectObject(hdc, hfontOld);
if (dwFlags & DIACTIVEBORDER) { if (dwFlags & DIFIRST) { rc = *prc; rc.left += 2; rc.bottom = rc.top + 1; rc.right -= 2; SHFillRectClr(hdc, &rc, GetSysColor(COLOR_BTNSHADOW)); } if (dwFlags & DISUBITEM) { rc = *prc; rc.left += 2; rc.right = rc.left + 1; SHFillRectClr(hdc, &rc, GetSysColor(COLOR_BTNSHADOW)); rc.right = prc->right - 2; rc.left = rc.right - 1; SHFillRectClr(hdc, &rc, GetSysColor(COLOR_BTNSHADOW)); } if (dwFlags & DILAST) { rc = *prc; rc.left += 2; rc.top = rc.bottom - 1; rc.right -= 2; SHFillRectClr(hdc, &rc, GetSysColor(COLOR_BTNSHADOW)); } }
#if 0
//focus is currently shown by drawing the selection with a different color
// (in default scheme, it's blue when has focus, gray when not)
if (dwFlags & DIFOCUSRECT) { rc = *prc; InflateRect(&rc, -1, -1); DrawFocusRect(hdc, &rc); }#endif
if (hfont) DeleteObject(hfont);}
//+-------------------------------------------------------------------------
// If going online, ungreys all items that were unavailable. If going
// offline, refreshes all items to see if they are still available.
//--------------------------------------------------------------------------
void CNscTree::_OnSHNotifyOnlineChange(HTREEITEM htiRoot, BOOL fGoingOnline){ HTREEITEM hItem;
for (hItem = TreeView_GetChild(_hwndTree, htiRoot); hItem ; hItem = TreeView_GetNextSibling(_hwndTree, hItem)) { ITEMINFO *pii = _GetTreeItemInfo(hItem); if (pii) { if (fGoingOnline) { // Going online, if previously greyed then ungrey it
if (pii->fGreyed) { pii->fGreyed = FALSE; _UpdateItemDisplayInfo(hItem); } } else { // Recheck each item to see if they should be greyed
if (pii->fFetched && !pii->fDontRefetch) { pii->fFetched = FALSE; _UpdateItemDisplayInfo(hItem); } } } // Inform children too
_OnSHNotifyOnlineChange(hItem, fGoingOnline); }}
//+-------------------------------------------------------------------------
// Force items to recheck to see if the should be pinned or greyed
//--------------------------------------------------------------------------
void CNscTree::_OnSHNotifyCacheChange( HTREEITEM htiRoot, // recurse through all children
DWORD_PTR dwFlags // CACHE_NOTIFY_* flags
){ HTREEITEM hItem;
for (hItem = TreeView_GetChild(_hwndTree, htiRoot); hItem ; hItem = TreeView_GetNextSibling(_hwndTree, hItem)) { ITEMINFO *pii = _GetTreeItemInfo(hItem); if (pii) { // If we have cached info for this item, refresh it if it's state may have toggled
if ((pii->fFetched && !pii->fDontRefetch) && ((pii->fGreyed && (dwFlags & CACHE_NOTIFY_ADD_URL)) || // We only need to check ungreyed items for changes to the
// stickey bit in the cache!
(!pii->fGreyed && ((dwFlags & (CACHE_NOTIFY_DELETE_URL | CACHE_NOTIFY_DELETE_ALL))) || (!pii->fPinned && (dwFlags & CACHE_NOTIFY_URL_SET_STICKY)) || (pii->fPinned && (dwFlags & CACHE_NOTIFY_URL_UNSET_STICKY)) ) )) { pii->fFetched = FALSE; _UpdateItemDisplayInfo(hItem); } } // Do it's children too
_OnSHNotifyCacheChange(hItem, dwFlags); }}
//
// Calls the appropriate routine in shdocvw to favorites import or export on
// the currently selected item
//
HRESULT CNscTree::DoImportOrExport(BOOL fImport){ HTREEITEM htiSelected = TreeView_GetSelection(_hwndTree); LPITEMIDLIST pidl = _GetFullIDList(htiSelected); if (pidl) { //
// If current selection is not a folder get the parent pidl
//
if (!ILIsFileSysFolder(pidl)) ILRemoveLastID(pidl); //
// Create the actual routine in shdocvw to do the import/export work
//
IShellUIHelper *pShellUIHelper; HRESULT hr = CoCreateInstance(CLSID_ShellUIHelper, NULL, CLSCTX_INPROC_SERVER, IID_PPV_ARG(IShellUIHelper, &pShellUIHelper)); if (SUCCEEDED(hr)) { VARIANT_BOOL vbImport = fImport ? VARIANT_TRUE : VARIANT_FALSE; WCHAR wszPath[MAX_PATH];
SHGetPathFromIDListW(pidl, wszPath); hr = pShellUIHelper->ImportExportFavorites(vbImport, wszPath); if (SUCCEEDED(hr) && fImport) { //
// Successfully imported favorites so need to update view
// FEATURE ie5 24973 - flicker alert, should optimize to just redraw selected
//
Refresh(); //TreeView_SelectItem(_hwndTree, htiSelected);
} pShellUIHelper->Release(); } ILFree(pidl); } return S_OK;}
HRESULT CNscTree::GetSelectedItemName(LPWSTR pszName, DWORD cchName){ HRESULT hr = E_FAIL; TCHAR szPath[MAX_PATH]; TV_ITEM tvi;
tvi.hItem = TreeView_GetSelection(_hwndTree); if (tvi.hItem != NULL) { tvi.mask = TVIF_HANDLE | TVIF_TEXT; tvi.pszText = szPath; tvi.cchTextMax = ARRAYSIZE(szPath); if (TreeView_GetItem(_hwndTree, &tvi)) { SHTCharToUnicode(szPath, pszName, cchName); hr = S_OK; } } return hr;}
HRESULT CNscTree::BindToSelectedItemParent(REFIID riid, void **ppv, LPITEMIDLIST *ppidl){ HRESULT hr = E_FAIL; if (!_fClosing) { LPCITEMIDLIST pidlItem = _CacheParentShellFolder(TreeView_GetSelection(_hwndTree), NULL); if (pidlItem) { hr = _psfCache->QueryInterface(riid, ppv); if (SUCCEEDED(hr) && ppidl) { *ppidl = ILClone(pidlItem); if (*ppidl == NULL) { hr = E_OUTOFMEMORY; ((IUnknown *)*ppv)->Release(); *ppv = NULL; } } } }
return hr;}
// takes ownership of pidl
HRESULT CNscTree::RightPaneNavigationStarted(LPITEMIDLIST pidl){ _fExpandNavigateTo = FALSE; _fNavigationFinished = FALSE; Pidl_Set(&_pidlNavigatingTo, pidl); return S_OK;}
// takes ownership of pidl
HRESULT CNscTree::RightPaneNavigationFinished(LPITEMIDLIST pidl){ HRESULT hr = S_OK;
_fNavigationFinished = TRUE; if (_fExpandNavigateTo) { _fExpandNavigateTo = FALSE; // only do this once
hr = E_OUTOFMEMORY; HDPA hdpa = DPA_Create(2); if (hdpa) { IDVGetEnum *pdvge; // private defview interface
hr = IUnknown_QueryService(_punkSite, SID_SFolderView, IID_PPV_ARG(IDVGetEnum, &pdvge)); if (SUCCEEDED(hr)) { HTREEITEM hti = _FindFromRoot(NULL, pidl); // Try to find the tree item using the pidl
if (hti) { IShellFolder* psf; hr = IEBindToObject(pidl, &psf); if (S_OK == hr) { ITEMINFO *pii = _GetTreeItemInfo(hti); DWORD grfFlags; _GetEnumFlags(psf, pidl, &grfFlags, NULL); IEnumIDList *penum; hr = pdvge->CreateEnumIDListFromContents(pidl, grfFlags, &penum); if (S_OK == hr) { ULONG celt; LPITEMIDLIST pidlTemp; while (S_OK == penum->Next(1, &pidlTemp, &celt)) { if (!OrderList_Append(hdpa, pidlTemp, -1)) { hr = E_OUTOFMEMORY; ILFree(pidlTemp); break; } } penum->Release(); }
if (hr == S_OK) { ORDERINFO oinfo; oinfo.psf = psf; oinfo.dwSortBy = OI_SORTBYNAME; // merge depends on by name.
DPA_Sort(hdpa, OrderItem_Compare, (LPARAM)&oinfo); OrderList_Reorder(hdpa);
LPITEMIDLIST pidlExpClone = ILClone(_pidlExpandingTo); // NULL is OK
s_NscEnumCallback(this, pidl, (UINT_PTR)hti, pii->dwSig, hdpa, pidlExpClone, _dwOrderSig, 0, FALSE, FALSE); hdpa = NULL; pidl = NULL; } psf->Release(); } } pdvge->Release(); } }
if (hr != S_OK) { if (hdpa) OrderList_Destroy(&hdpa, TRUE); // calls DPA_Destroy(hdpa)
if (pidl) { HTREEITEM hti = _FindFromRoot(NULL, pidl); if (hti) { BOOL fOrdered; hr = _StartBackgroundEnum(hti, pidl, &fOrdered, FALSE); } } } } ILFree(pidl); return hr;}
HRESULT CNscTree::MoveSelectionTo(void){ return MoveItemsIntoFolder(::GetParent(_hwndParent)) ? S_OK : S_FALSE;}
BOOL CNscTree::MoveItemsIntoFolder(HWND hwndParent){ BOOL fSuccess = FALSE; BROWSEINFO browse = {0}; TCHAR szDisplayName[MAX_PATH]; TCHAR szInstructionString[MAX_PATH]; LPITEMIDLIST pidlDest = NULL, pidlSelected = NULL; HTREEITEM htiSelected = NULL; //Initialize the BROWSEINFO struct.
browse.pidlRoot = ILClone(_pidlRoot); if (!browse.pidlRoot) return FALSE; htiSelected = TreeView_GetSelection(_hwndTree); pidlSelected = _GetFullIDList(htiSelected); if (!pidlSelected) { ILFree((LPITEMIDLIST)browse.pidlRoot); return FALSE; } MLLoadShellLangString(IDS_FAVORITEBROWSE, szInstructionString, ARRAYSIZE(szInstructionString)); browse.pszDisplayName = szDisplayName; browse.hwndOwner = hwndParent; browse.lpszTitle = szInstructionString; browse.ulFlags = BIF_RETURNFSANCESTORS | BIF_RETURNONLYFSDIRS; browse.lpfn = NULL; browse.lParam = 0; browse.iImage = 0; pidlDest = SHBrowseForFolder(&browse); if (pidlDest) { TCHAR szFrom[MAX_PATH+1]; // +1 for double null
TCHAR szDest[MAX_PATH+1]; SHGetPathFromIDList(pidlDest, szDest); SHGetPathFromIDList(pidlSelected, szFrom); ASSERT(szDest[0]); // must be a file system thing...
ASSERT(szFrom[0]); szDest[lstrlen(szDest) + 1] = 0; // double null
szFrom[lstrlen(szFrom) + 1] = 0; // double null
SHFILEOPSTRUCT shop = {hwndParent, FO_MOVE, szFrom, szDest, 0, }; SHFileOperation(&shop); fSuccess = TRUE; ILFree(pidlDest); } ILFree((LPITEMIDLIST)browse.pidlRoot); ILFree(pidlSelected); return fSuccess;}
// the following guid goo and IsChannelFolder are mostly lifted from cdfview
#define GUID_STR_LEN 80
const GUID CLSID_CDFINI = {0xf3aa0dc0, 0x9cc8, 0x11d0, {0xa5, 0x99, 0x0, 0xc0, 0x4f, 0xd6, 0x44, 0x34}};// {f3aa0dc0-9cc8-11d0-a599-00c04fd64434}
// REARCHITECT: total hack. looks into the desktop.ini for this guy
//
// pwzChannelURL is assumed to be INTERNET_MAX_URL_LENGTH
BOOL IsChannelFolder(LPCWSTR pwzPath, LPWSTR pwzChannelURL){ ASSERT(pwzPath); BOOL fRet = FALSE; WCHAR wzFolderGUID[GUID_STR_LEN]; WCHAR wzIniFile[MAX_PATH]; if (!PathCombineW(wzIniFile, pwzPath, L"desktop.ini")) return FALSE; if (GetPrivateProfileString(L".ShellClassInfo", L"CLSID", L"", wzFolderGUID, ARRAYSIZE(wzFolderGUID), wzIniFile)) { WCHAR wzChannelGUID[GUID_STR_LEN]; //it's only a channel if it's got the right guid and an url
if (SHStringFromGUID(CLSID_CDFINI, wzChannelGUID, ARRAYSIZE(wzChannelGUID))) { fRet = (StrCmpN(wzFolderGUID, wzChannelGUID, ARRAYSIZE(wzChannelGUID)) == 0); if (fRet && pwzChannelURL) { fRet = (SHGetIniStringW(L"Channel", L"CDFURL", pwzChannelURL, INTERNET_MAX_URL_LENGTH, wzIniFile) != 0); } } } return fRet;}
BOOL CNscTree::_IsChannelFolder(HTREEITEM hti){ BOOL fRet = FALSE;
LPITEMIDLIST pidl = _GetFullIDList(hti); if (pidl) { WCHAR szPath[MAX_PATH]; if (SUCCEEDED(IEGetNameAndFlags(pidl, SHGDN_FORPARSING, szPath, ARRAYSIZE(szPath), NULL))) { fRet = IsChannelFolder(szPath, NULL); }
ILFree(pidl); }
return fRet;}
HRESULT CNscTree::CreateSubscriptionForSelection(/*[out, retval]*/ VARIANT_BOOL *pBool){ HRESULT hr = DoSubscriptionForSelection(TRUE); if (pBool) *pBool = (SUCCEEDED(hr) ? TRUE : FALSE);
return FIX_SCRIPTING_ERRORS(hr);}
HRESULT CNscTree::DeleteSubscriptionForSelection(/*[out, retval]*/ VARIANT_BOOL *pBool){ HRESULT hr = DoSubscriptionForSelection(FALSE); if (pBool) *pBool = (SUCCEEDED(hr) ? TRUE : FALSE);
return FIX_SCRIPTING_ERRORS(hr);}
//
// 1. get the selected item
// 2. get it's name
// 3. get it's url
// 4. create a Subscription manager and do the right thing for channels
// 5. return Subscription manager's result
HRESULT CNscTree::DoSubscriptionForSelection(BOOL fCreate){#ifndef DISABLE_SUBSCRIPTIONS
HRESULT hr = E_FAIL; WCHAR wzUrl[MAX_URL_STRING]; WCHAR wzName[MAX_PATH]; HTREEITEM htiSelected = TreeView_GetSelection(_hwndTree); if (htiSelected == NULL) return E_FAIL; TV_ITEM tvi; tvi.mask = TVIF_HANDLE | TVIF_TEXT; tvi.hItem = htiSelected; tvi.pszText = wzName; tvi.cchTextMax = ARRAYSIZE(wzName); TreeView_GetItem(_hwndTree, &tvi); WCHAR wzPath[MAX_PATH]; LPITEMIDLIST pidlItem = _CacheParentShellFolder(htiSelected, NULL); if (pidlItem) { GetPathForItem(_psfCache, pidlItem, wzPath, NULL); hr = GetNavTargetName(_psfCache, pidlItem, wzUrl, ARRAYSIZE(wzUrl)); } if (FAILED(hr)) //if we couldn't get an url, not much to do
return hr; ISubscriptionMgr *psm; hr = JITCoCreateInstance(CLSID_SubscriptionMgr, NULL, CLSCTX_INPROC_SERVER, IID_PPV_ARG(ISubscriptionMgr, &psm), _hwndTree, FIEF_FLAG_FORCE_JITUI); if (SUCCEEDED(hr)) { HCURSOR hCursorOld = SetCursor(LoadCursor(NULL, IDC_WAIT)); //IsChannelFolder will fixup wzUrl if it's a channel
BOOL fChannel = IsChannelFolder(wzPath, wzUrl); if (fCreate) { SUBSCRIPTIONINFO si = { sizeof(SUBSCRIPTIONINFO) }; TASK_TRIGGER tt; BOOL bIsSoftware = FALSE; if (fChannel) { IChannelMgrPriv *pChannelMgrPriv; hr = JITCoCreateInstance(CLSID_ChannelMgr, NULL, CLSCTX_INPROC_SERVER, IID_PPV_ARG(IChannelMgrPriv, &pChannelMgrPriv), _hwndTree, FIEF_FLAG_PEEK);
if (SUCCEEDED(hr)) { WCHAR wszTitle[MAX_PATH]; si.fUpdateFlags |= SUBSINFO_SCHEDULE; si.schedule = SUBSSCHED_AUTO; si.pTrigger = (void *)&tt; hr = pChannelMgrPriv->DownloadMinCDF(_hwndTree, wzUrl, wszTitle, ARRAYSIZE(wszTitle), &si, &bIsSoftware); pChannelMgrPriv->Release(); } }
if (SUCCEEDED(hr)) { DWORD dwFlags = CREATESUBS_NOUI | CREATESUBS_FROMFAVORITES | ((!bIsSoftware) ? 0 : CREATESUBS_SOFTWAREUPDATE); hr = psm->CreateSubscription(_hwndTree, wzUrl, wzName, dwFlags, (fChannel ? SUBSTYPE_CHANNEL : SUBSTYPE_URL), &si); } } else { hr = psm->DeleteSubscription(wzUrl, NULL); } BOOL bSubscribed; // This is in case subscribing or unsubscribing return a failed result even
// though the action succeeded from our standpoint (ie. item was subscribed
// successfully but creating a schedule failed or the item was unsubscribed
// successfully but we couldn't abort a running download in syncmgr).
psm->IsSubscribed(wzUrl, &bSubscribed); hr = ((fCreate && bSubscribed) || (!fCreate && !bSubscribed)) ? S_OK : E_FAIL; psm->Release(); SetCursor(hCursorOld); } return hr;
#else /* !DISABLE_SUBSCRIPTIONS */
return E_FAIL;
#endif /* !DISABLE_SUBSCRIPTIONS */
}
// Causes NSC to re-root on a different pidl --
HRESULT CNscTree::_ChangePidlRoot(LPCITEMIDLIST pidl){ _fClosing = TRUE; ::SendMessage(_hwndTree, WM_SETREDRAW, FALSE, 0); _bSynchId++; if (_bSynchId >= 16) _bSynchId = 0; TreeView_DeleteAllItemsQuickly(_hwndTree); _htiActiveBorder = NULL; _fClosing = FALSE; if (_psfCache) _ReleaseCachedShellFolder();
// We do this even for (NULL == pidl) because (CSIDL_DESKTOP == NULL)
if ((LPCITEMIDLIST)INVALID_HANDLE_VALUE != pidl) { _UnSubClass(); _SetRoot(pidl, 3/*random*/, NULL, NSSR_CREATEPIDL); _SubClass(pidl); } ::SendMessage(_hwndTree, WM_SETREDRAW, TRUE, 0);
return S_OK;}
BOOL CNscTree::_IsMarked(HTREEITEM hti){ if ((hti == NULL) || (hti == TVI_ROOT)) return FALSE; TVITEM tvi; tvi.mask = TVIF_HANDLE | TVIF_STATE; tvi.stateMask = TVIS_STATEIMAGEMASK; tvi.state = 0; tvi.hItem = hti; TreeView_GetItem(_hwndTree, &tvi);
return BOOLIFY(tvi.state & NSC_TVIS_MARKED);}
void CNscTree::_MarkChildren(HTREEITEM htiParent, BOOL fOn){ TVITEM tvi; tvi.mask = TVIF_HANDLE | TVIF_STATE; tvi.stateMask = TVIS_STATEIMAGEMASK; tvi.state = (fOn ? NSC_TVIS_MARKED : 0); tvi.hItem = htiParent; TreeView_SetItem(_hwndTree, &tvi);
for (HTREEITEM htiTemp = TreeView_GetChild(_hwndTree, htiParent); htiTemp; htiTemp = TreeView_GetNextSibling(_hwndTree, htiTemp)) { tvi.hItem = htiTemp; TreeView_SetItem(_hwndTree, &tvi); _MarkChildren(htiTemp, fOn); }}
//Updates the tree and internal state for the active border (the 1 pixel line)
// htiSelected is the item that was just clicked on/selected
void CNscTree::_UpdateActiveBorder(HTREEITEM htiSelected){ HTREEITEM htiNewBorder; if (MODE_NORMAL == _mode) return;
//if an item is a folder, then it should have the border
if (htiSelected != TVI_ROOT) { if (TreeView_GetChild(_hwndTree, htiSelected)) htiNewBorder = htiSelected; else htiNewBorder = TreeView_GetParent(_hwndTree, htiSelected); } else htiNewBorder = NULL; //clear the old state
// in multiselect mode we don't unselect the previously selected folder
if ((!(_dwFlags & NSS_MULTISELECT)) && (_htiActiveBorder != TVI_ROOT) && (_htiActiveBorder != NULL) && (htiNewBorder != _htiActiveBorder)) _MarkChildren(_htiActiveBorder, FALSE); //set the new state
BOOL bMark = TRUE; if (_dwFlags & NSS_MULTISELECT) { bMark = TreeView_GetItemState(_hwndTree, htiNewBorder, NSC_TVIS_MARKED) & NSC_TVIS_MARKED; } if (bMark && (htiNewBorder != TVI_ROOT) && (htiNewBorder != NULL)) _MarkChildren(htiNewBorder, TRUE);
//treeview knows to invalidate itself
_htiActiveBorder = htiNewBorder;}
void CNscTree::_UpdateItemDisplayInfo(HTREEITEM hti){ if (_GetTreeItemInfo(hti) && _pTaskScheduler) { LPITEMIDLIST pidl = _GetFullIDList(hti); if (pidl) { LPITEMIDLIST pidl2 = _mode == MODE_NORMAL ? ILClone(pidl) : NULL; AddNscIconTask(_pTaskScheduler, pidl, s_NscIconCallback, this, (UINT_PTR) hti, (UINT)_bSynchId); if (pidl2) { AddNscOverlayTask(_pTaskScheduler, pidl2, &s_NscOverlayCallback, this, (UINT_PTR)hti, (UINT)_bSynchId); } } } //pidls get freed by CNscIconTask
}
void CNscTree::s_NscOverlayCallback(CNscTree *pns, UINT_PTR uId, int iOverlayIndex, UINT uMagic){ ASSERT(pns); ASSERT(uId);
//this function gets called on a background thread, so use PostMessage to do treeview ops
//on the main thread only.
//assert that wacky packing is going to work
ASSERT(((iOverlayIndex & 0x0fffffff) == iOverlayIndex) && (uMagic < 16));
LPARAM lParam = (uMagic << 28) + iOverlayIndex;
if (uMagic == pns->_bSynchId && ::IsWindow(pns->_hwndTree)) ::PostMessage(pns->_hwndTree, WM_NSCUPDATEICONOVERLAY, (WPARAM)uId, lParam);}
void CNscTree::s_NscIconCallback(CNscTree *pns, UINT_PTR uId, int iIcon, int iIconOpen, DWORD dwFlags, UINT uMagic){ ASSERT(pns); ASSERT(uId);
//this function gets called on a background thread, so use PostMessage to do treeview ops
//on the main thread only.
//assert that wacky packing is going to work
ASSERT((iIcon < 4096) && (iIconOpen < 4096) && (dwFlags < 16) && (uMagic < 16));
LPARAM lParam = (uMagic << 28) + (dwFlags << 24) + (iIconOpen << 12) + iIcon;
if (uMagic == pns->_bSynchId && ::IsWindow(pns->_hwndTree)) ::PostMessage(pns->_hwndTree, WM_NSCUPDATEICONINFO, (WPARAM)uId, lParam);}
LRESULT CNscTree::_OnCommand(WPARAM wParam, LPARAM lParam){ UINT idCmd = GET_WM_COMMAND_ID(wParam, lParam);
switch(idCmd) { case FCIDM_MOVE: InvokeContextMenuCommand(L"cut"); break;
case FCIDM_COPY: InvokeContextMenuCommand(L"copy"); break;
case FCIDM_PASTE: InvokeContextMenuCommand(L"paste"); break;
case FCIDM_LINK: InvokeContextMenuCommand(L"link"); break;
case FCIDM_DELETE: InvokeContextMenuCommand(L"delete"); if (_hwndTree) { SHChangeNotifyHandleEvents(); } break;
case FCIDM_PROPERTIES: InvokeContextMenuCommand(L"properties"); break;
case FCIDM_RENAME: { // HACKHACK (lamadio): This is to hack around tree view renaming on click and hover
_fOkToRename = TRUE; HTREEITEM hti = TreeView_GetSelection(_hwndTree); if (hti) TreeView_EditLabel(_hwndTree, hti); _fOkToRename = FALSE; } break;
default: return FALSE; }
return TRUE;}
void CNscTree::_TreeSetItemState(HTREEITEM hti, UINT stateMask, UINT state){ if (hti) { TV_ITEM tvi; tvi.mask = TVIF_STATE; tvi.stateMask = stateMask; tvi.hItem = hti; tvi.state = state; TreeView_SetItem(_hwndTree, &tvi); }
}
void CNscTree::_TreeNukeCutState(){ _TreeSetItemState(_htiCut, TVIS_CUT, 0); _htiCut = NULL;
::ChangeClipboardChain(_hwndTree, _hwndNextViewer); _hwndNextViewer = NULL;}
// *** IFolderFilterSite methods ***
HRESULT CNscTree::SetFilter(IUnknown* punk){ HRESULT hr = S_OK; ATOMICRELEASE(_pFilter);
if (punk) hr = punk->QueryInterface(IID_PPV_ARG(IFolderFilter, &_pFilter));
return hr;}
int DPADeletePidlsCB(void *pItem, void *pData){ if (pItem) ILFree((LPITEMIDLIST)pItem); return TRUE;}
int DPADeleteItemCB(void *pItem, void *pData){ if (pItem) { LocalFree(pItem); pItem = NULL; }
return TRUE;}
HRESULT CNscTree::get_SubscriptionsEnabled(VARIANT_BOOL * pVal){ *pVal = BOOLIFY(!SHRestricted2(REST_NoAddingSubscriptions, NULL, 0)); return S_OK;}
HRESULT CNscTree::Synchronize(){ return S_OK;}
HRESULT CNscTree::NewFolder(){ //we should do this activates stuff only in control mode
//hack to get control to be activated fully
m_bUIActive = FALSE; InPlaceActivate(OLEIVERB_UIACTIVATE);
return CreateNewFolder(TreeView_GetSelection(_hwndTree));}
HRESULT CNscTree::InvokeContextMenuCommand(BSTR strCommand){ ASSERT(strCommand);
if (strCommand) { //again activate only if in control mode
//only if renaming, activate control
if (StrStr(strCommand, L"rename") != NULL) { //hack to get control to be activated fully
m_bUIActive = FALSE; InPlaceActivate(OLEIVERB_UIACTIVATE); }
return _InvokeContextMenuCommand(strCommand); }
return S_OK;}
HRESULT CNscTree::get_EnumOptions(LONG *pVal){ *pVal = _grfFlags; return S_OK;}
HRESULT CNscTree::put_EnumOptions(LONG lVal){ _grfFlags = lVal; return S_OK;}
HRESULT CreateFolderItem(LPCITEMIDLIST pidl, IDispatch **ppItem){ *ppItem = NULL;
IPersistFolder *ppf; HRESULT hr = CoCreateInstance(CLSID_FolderItem, NULL, CLSCTX_INPROC_SERVER, IID_PPV_ARG(IPersistFolder, &ppf)); if (SUCCEEDED(hr)) { if (S_OK == ppf->Initialize(pidl)) { hr = ppf->QueryInterface(IID_PPV_ARG(IDispatch, ppItem)); } else hr = E_FAIL; ppf->Release(); } return hr;}
HRESULT CNscTree::get_SelectedItem(IDispatch **ppItem){ *ppItem = NULL;
LPITEMIDLIST pidl; if (SUCCEEDED(GetSelectedItem(&pidl, 0)) && pidl) { CreateFolderItem(pidl, ppItem); ILFree(pidl); } return *ppItem ? S_OK : S_FALSE;}
HRESULT CNscTree::put_SelectedItem(IDispatch *pItem){ return S_FALSE;}
HRESULT CNscTree::get_Root(VARIANT *pvar){ pvar->vt = VT_EMPTY; return S_OK;}
HRESULT CNscTree::put_Root(VARIANT var){ if (_csidl != -1) { SetNscMode(MODE_CONTROL); _csidl = -1; // unknown
}
return _PutRootVariant(&var);}
HRESULT CNscTree::_PutRootVariant(VARIANT *pvar){ BOOL bReady = _pidlRoot != NULL; LPITEMIDLIST pidl = VariantToIDList(pvar); if (_hdpaViews) { DPA_DestroyCallback(_hdpaViews, DPADeletePidlsCB, NULL); _hdpaViews = NULL; } HRESULT hr = S_OK; if (bReady) hr = _ChangePidlRoot(pidl);
ILFree(pidl);
return S_OK;}
HRESULT CNscTree::SetRoot(BSTR bstrFullPath){ // SetRoot is from IShellFavoritesNamespace so turn on Favorites mode
_csidl = CSIDL_FAVORITES; SetNscMode(MODE_FAVORITES | MODE_CONTROL);
CComVariant varPath(bstrFullPath);
return FIX_SCRIPTING_ERRORS(_PutRootVariant(&varPath));}
HRESULT CNscTree::put_Mode(UINT uMode){ SetNscMode(uMode); _csidl = -1; return S_OK;}
HRESULT CNscTree::put_Flags(DWORD dwFlags){ _dwFlags = dwFlags; return S_OK;}
HRESULT CNscTree::get_Columns(BSTR *pbstrColumns){ *pbstrColumns = SysAllocString(TEXT("")); return *pbstrColumns? S_OK: E_FAIL;}
typedef struct{ TCHAR szName[20]; const SHCOLUMNID *pscid;} COLUMNS;
static COLUMNS s_Columns[] = { {TEXT("name"), &SCID_NAME}, {TEXT("attribs"), &SCID_ATTRIBUTES}, {TEXT("size"), &SCID_SIZE}, {TEXT("type"), &SCID_TYPE}, {TEXT("create"), &SCID_CREATETIME},};
int _SCIDsFromNames(LPTSTR pszNames, int nSize, const SHCOLUMNID *apscid[]){ int cItems = 0;
if (!pszNames || !apscid || !nSize) return -1; do { BOOL bInsert = FALSE; LPTSTR pszTemp = StrChr(pszNames, TEXT(';'));
if (pszTemp) { *pszTemp = 0; pszTemp++; } for (int i = 0; i < ARRAYSIZE(s_Columns); i++) { if (StrCmpI(pszNames, s_Columns[i].szName) == 0) { bInsert = TRUE;#ifdef NO_DUPLICATES
for (int j = 0; j < cItems; j++) { if (IsEqualSCID(*(s_Columns[i].pscid), *apscid[j])) { bInsert = FALSE; break; } }#endif
break; } } if (bInsert) { apscid[cItems++] = s_Columns[i].pscid; if (cItems >= nSize) break; } pszNames = pszTemp; } while(pszNames);
return cItems;}
HRESULT CNscTree::put_Columns(BSTR bstrColumns){ HRESULT hr = E_FAIL;
if (_dwFlags & NSS_HEADER) { if (!_hdpaColumns) { _hdpaColumns = DPA_Create(3); hr = E_OUTOFMEMORY; } else { DPA_EnumCallback(_hdpaColumns, DPADeleteItemCB, NULL); DPA_DeleteAllPtrs(_hdpaColumns); }
if (_hdpaColumns) { const SHCOLUMNID *apscid[5]; int cItems = _SCIDsFromNames(bstrColumns, ARRAYSIZE(apscid), apscid); hr = S_OK; for (int i = 0; i < cItems; i++) { HEADERINFO *phinfo = (HEADERINFO *)LocalAlloc(LPTR, sizeof(HEADERINFO)); if (phinfo) { phinfo->pscid = apscid[i]; phinfo->iFldrCol = -1; if (DPA_AppendPtr(_hdpaColumns, (void *)phinfo) == -1) { hr = E_FAIL; LocalFree(phinfo); phinfo = NULL; break; } } else { hr = E_OUTOFMEMORY; break; } } if (DPA_GetPtrCount(_hdpaColumns) > 0) _CreateHeader(); } } return hr;}
HRESULT CNscTree::get_CountViewTypes(int *piTypes){ *piTypes = 0; if (_pidlRoot && !_hdpaViews) { IShellFolder *psf;
if (SUCCEEDED(IEBindToObject(_pidlRoot, &psf))) //do we have this cached?
{ IShellFolderViewType *psfvt; if (SUCCEEDED(psf->QueryInterface(IID_PPV_ARG(IShellFolderViewType, &psfvt)))) { IEnumIDList *penum;
if (SUCCEEDED(psfvt->EnumViews(0, &penum))) { LPITEMIDLIST pidl; ULONG cFetched;
_hdpaViews = DPA_Create(4); if (_hdpaViews) { while (penum->Next(1, &pidl, &cFetched) == S_OK && cFetched == 1) { if (DPA_AppendPtr(_hdpaViews, pidl) == -1) { ILFree(pidl); break; } } } penum->Release(); } psfvt->Release(); } psf->Release(); } }
if (_hdpaViews) *piTypes = DPA_GetPtrCount(_hdpaViews); return S_OK;}
HRESULT CNscTree::SetViewType(int iType){ HRESULT hr = S_FALSE; if (_hdpaViews && iType < DPA_GetPtrCount(_hdpaViews)) // allow negative types to reset to _pidlRoot
{ LPITEMIDLIST pidl = (LPITEMIDLIST)DPA_GetPtr(_hdpaViews, iType); LPITEMIDLIST pidlType;
if (pidl) pidlType = ILCombine(_pidlRoot, pidl); else pidlType = _pidlRoot;
if (pidlType) { hr = _ChangePidlRoot(pidlType); if (pidlType != _pidlRoot) ILFree(pidlType); } } return hr;}
HRESULT CreateFolderItemsFDF(LPCITEMIDLIST pidl, IDispatch **ppItems){ *ppItems = NULL;
IPersistFolder *ppf; HRESULT hr = CoCreateInstance(CLSID_FolderItemsFDF, NULL, CLSCTX_INPROC_SERVER, IID_PPV_ARG(IPersistFolder, &ppf)); if (SUCCEEDED(hr)) { if (S_OK == ppf->Initialize(pidl)) { hr = ppf->QueryInterface(IID_PPV_ARG(IDispatch, ppItems)); } else hr = E_FAIL; ppf->Release(); } return hr;}
void CNscTree::_InsertMarkedChildren(HTREEITEM htiParent, LPCITEMIDLIST pidlParent, IInsertItem *pii){ TV_ITEM tvi; tvi.mask = TVIF_PARAM | TVIF_HANDLE; for (HTREEITEM htiTemp = TreeView_GetChild(_hwndTree, htiParent); htiTemp; htiTemp = TreeView_GetNextSibling(_hwndTree, htiTemp)) { BOOL bMarked = TreeView_GetItemState(_hwndTree, htiTemp, NSC_TVIS_MARKED) & NSC_TVIS_MARKED;
tvi.hItem = htiTemp; if (TreeView_GetItem(_hwndTree, &tvi)) { if (tvi.lParam) { PORDERITEM poi = ((ITEMINFO *)tvi.lParam)->poi;
if (poi) { LPITEMIDLIST pidl = ILCombine(pidlParent, poi->pidl);
if (pidl) { if (bMarked) { pii->InsertItem(pidl); } _InsertMarkedChildren(htiTemp, pidl, pii); ILFree(pidl); } } } } }}
HRESULT CNscTree::SelectedItems(IDispatch **ppItems){ HRESULT hr = CreateFolderItemsFDF(_pidlRoot, ppItems); // poke all marked items in ppitems)
if (SUCCEEDED(hr) && _hwndTree) { IInsertItem *pii;
hr = (*ppItems)->QueryInterface(IID_PPV_ARG(IInsertItem, &pii)); if (SUCCEEDED(hr)) { if (!(_mode & MODE_NORMAL) && (_dwFlags & NSS_MULTISELECT)) { _InsertMarkedChildren(TVI_ROOT, NULL, pii); } else { LPITEMIDLIST pidl; if (SUCCEEDED(GetSelectedItem(&pidl, 0)) && pidl) { hr = pii->InsertItem(pidl); ILFree(pidl); } } pii->Release();
} }
return hr;}
HRESULT CNscTree::Expand(VARIANT var, int iDepth){ HRESULT hr = E_FAIL; LPITEMIDLIST pidl;
if (var.vt == VT_EMPTY) pidl = ILClone(_pidlRoot); else pidl = VariantToIDList(&var);
if (pidl) { hr = _Expand(pidl, iDepth); if (FAILED(hr)) hr = S_FALSE; ILFree(pidl); }
return hr;}
/*
HRESULT CNscTree::get_ReadyState(READYSTATE *plReady){ *plReady = _lReadyState; return S_OK;}
void CNscTree::_ReadyStateChange(READYSTATE lReady){ if (_lReadyState < lReady) { _lReadyState = lReady; //post beta 1 item (need trident v3)
//IUnknown_CPContainerOnChanged(SAFECAST(this, IShellNameSpace *), DISPID_READYSTATE);
}}*/
HRESULT CNscTree::UnselectAll(){ if (_dwFlags & NSS_MULTISELECT) _MarkChildren(TVI_ROOT, FALSE); return S_OK;}
LRESULT CNscTree::OnMouseActivate(UINT uMsg, WPARAM wParam, LPARAM lParam, BOOL& bHandled){ // when in label edit mode, don't try to activate the control or you'll get out of label editing,
// even when you click on the label edit control
if (!InLabelEdit()) InPlaceActivate(OLEIVERB_UIACTIVATE); return S_OK;}
LRESULT CNscTree::OnGetIShellBrowser(UINT uMsg, WPARAM wParam, LPARAM lParam, BOOL &bHandled){ LRESULT lResult = NULL; // This will be the IShellBrowser *.
IShellBrowser * psb; if (SUCCEEDED(_InternalQueryInterface(IID_PPV_ARG(IShellBrowser, &psb)))) { lResult = (LRESULT) psb; psb->Release(); } bHandled = TRUE; return lResult;}
LRESULT CNscTree::OnSetFocus(UINT uMsg, WPARAM wParam, LPARAM lParam, BOOL &bHandled){ if (!m_bUIActive) CComControlBase::InPlaceActivate(OLEIVERB_UIACTIVATE);
if ((HWND)wParam != _hwndTree) ::SendMessage(_hwndTree, uMsg, wParam, lParam); bHandled = TRUE; return 0;}
LRESULT CNscTree::OnKillFocus(UINT uMsg, WPARAM wParam, LPARAM lParam, BOOL &bHandled){ bHandled = TRUE;
return S_OK;}
LRESULT CNscTree::OnNotify(UINT uMsg, WPARAM wParam, LPARAM lParam, BOOL& bHandled){ LPNMHDR pnm = (LPNMHDR)lParam; if (pnm) { switch (pnm->code) { case TVN_SELCHANGEDA: case TVN_SELCHANGED: { if (CSIDL_FAVORITES == _csidl) { IShellFolder *psf = NULL; LPITEMIDLIST pidl = NULL; UINT cItems, cVisits; WCHAR szTitle[MAX_PATH], szUrl[INTERNET_MAX_URL_LENGTH], szLastVisited[MAX_PATH]; BOOL fAvailableOffline;
szTitle[0] = szUrl[0] = szLastVisited[0] = 0;
HRESULT hr = BindToSelectedItemParent(IID_PPV_ARG(IShellFolder, &psf), &pidl); if (SUCCEEDED(hr) && (SUCCEEDED(GetSelectedItemName(szTitle, ARRAYSIZE(szTitle))))) { GetEventInfo(psf, pidl, &cItems, szUrl, ARRAYSIZE(szUrl), &cVisits, szLastVisited, &fAvailableOffline);
CComBSTR strName(szTitle); CComBSTR strUrl(szUrl); CComBSTR strDate(szLastVisited); _FireFavoritesSelectionChange(cItems, 0, strName, strUrl, cVisits, strDate, fAvailableOffline); } else _FireFavoritesSelectionChange(0, 0, NULL, NULL, 0, NULL, FALSE);
ILFree(pidl); ATOMICRELEASE(psf); } IUnknown_CPContainerInvokeParam(SAFECAST(this, IShellNameSpace *), DIID_DShellNameSpaceEvents, DISPID_SELECTIONCHANGE, NULL, 0); } break;
case NM_DBLCLK: IUnknown_CPContainerInvokeParam(SAFECAST(this, IShellNameSpace *), DIID_DShellNameSpaceEvents, DISPID_DOUBLECLICK, NULL, 0); break;
default: break; } }
LRESULT lResult; HRESULT hr = OnWinEvent(_hwndTree, uMsg, wParam, lParam, &lResult); bHandled = (lResult ? TRUE : FALSE); return SUCCEEDED(hr) ? lResult : hr;}
void CNscTree::_InitHeaderInfo(){ if (!_pidlRoot || !_hdpaColumns || DPA_GetPtrCount(_hdpaColumns) == 0) return;
IShellFolder *psf; if (SUCCEEDED(IEBindToObject(_pidlRoot, &psf))) { IShellFolder2 *psf2;
if (SUCCEEDED(psf->QueryInterface(IID_PPV_ARG(IShellFolder2, &psf2)))) { int i; SHCOLUMNID scid; for (i=0; SUCCEEDED(psf2->MapColumnToSCID(i, &scid)); i++) { BOOL bFound = FALSE; HEADERINFO *phinfo;
for (int iCol=0; iCol < DPA_GetPtrCount(_hdpaColumns); iCol++) { phinfo = (HEADERINFO *)DPA_GetPtr(_hdpaColumns, iCol);
if (phinfo && phinfo->iFldrCol == -1 && IsEqualSCID(*(phinfo->pscid), scid)) { bFound = TRUE; break; } }
if (bFound) { DETAILSINFO di;
di.fmt = LVCFMT_LEFT; di.cxChar = 20; di.str.uType = (UINT)-1; //di.pidl = NULL;
if (SUCCEEDED(psf2->GetDetailsOf(NULL, i, (SHELLDETAILS *)&di.fmt))) { phinfo->fmt = di.fmt; phinfo->iFldrCol = i; phinfo->cxChar = di.cxChar; StrRetToBuf(&di.str, NULL, phinfo->szName, ARRAYSIZE(phinfo->szName)); } } }
for (i=DPA_GetPtrCount(_hdpaColumns)-1; i >= 0; i--) { HEADERINFO *phinfo = (HEADERINFO *)DPA_GetPtr(_hdpaColumns, i);
if (!phinfo || phinfo->iFldrCol == -1) { if (phinfo) { LocalFree(phinfo); phinfo = NULL; }
DPA_DeletePtr(_hdpaColumns, i); } } psf2->Release(); } psf->Release(); }}
HWND CNscTree::Create(HWND hWndParent, RECT& rcPos, LPCTSTR pszWindowName, DWORD dwStyle, DWORD dwExStyle, UINT nID){ CWindowImpl<CNscTree>::Create(hWndParent, rcPos, pszWindowName, dwStyle, dwExStyle, nID);
LPITEMIDLIST pidl = _pidlRoot, pidlToFree = NULL;
ASSERT(m_spClientSite);
SetSite(m_spClientSite); // hook up the site chain
_dwTVFlags |= TVS_TRACKSELECT | TVS_INFOTIP | TVS_FULLROWSELECT; if (!(_mode & MODE_CUSTOM)) { DWORD dwValue; DWORD dwSize = sizeof(dwValue); BOOL fDefault = TRUE;
SHRegGetUSValue(L"Software\\Microsoft\\Internet Explorer\\Main", L"NscSingleExpand", NULL, (LPBYTE)&dwValue, &dwSize, FALSE, (void *) &fDefault, sizeof(fDefault));
if (dwValue) _dwTVFlags |= TVS_SINGLEEXPAND; }
_hwndTree = NULL; CreateTree(m_hWnd, _dwTVFlags, &_hwndTree);
if (NULL == pidl) { SHGetSpecialFolderLocation(NULL, _csidl, &pidl); pidlToFree = pidl; }
if (pidl) { if (_dwFlags & NSS_HEADER) { if (!_hdpaColumns || DPA_GetPtrCount(_hdpaColumns) == 0) { _dwFlags &= ~NSS_HEADER; } else { _InitHeaderInfo(); } } Initialize(pidl, _grfFlags, _dwFlags); ShowWindow(TRUE); IUnknown_CPContainerInvokeParam(SAFECAST(this, IShellNameSpace *), DIID_DShellNameSpaceEvents, DISPID_INITIALIZED, NULL, 0); ILFree(pidlToFree); } return m_hWnd;}
HRESULT CNscTree::InPlaceActivate(LONG iVerb, const RECT* prcPosRect /*= NULL*/){ HRESULT hr = CComControl<CNscTree>::InPlaceActivate(iVerb, prcPosRect); if (::GetFocus() != _hwndTree) ::SetFocus(_hwndTree); return hr;}
STDMETHODIMP CNscTree::GetWindow(HWND* phwnd){ return IOleInPlaceActiveObjectImpl<CNscTree>::GetWindow(phwnd);}
STDMETHODIMP CNscTree::TranslateAccelerator(MSG *pMsg){ // label editing edit control is taking the keystrokes, TAing them will just duplicate them
if (InLabelEdit()) return S_FALSE;
// hack so that the escape can get out to the document, because TA won't do it
// WM_KEYDOWN is because some keyup's come through that need to not close the dialog
if ((pMsg->wParam == VK_ESCAPE) && (pMsg->message == WM_KEYDOWN)) { _FireFavoritesSelectionChange(-1, 0, NULL, NULL, 0, NULL, FALSE); return S_FALSE; } //except for tabs and sys keys, let nsctree take all the keystrokes
if ((pMsg->wParam != VK_TAB) && (pMsg->message != WM_SYSCHAR) && (pMsg->message != WM_SYSKEYDOWN) && (pMsg->message != WM_SYSKEYUP)) { // TreeView will return TRUE if it processes the key, so we return S_OK to indicate
// the keystroke was used and prevent further processing
return ::SendMessage(pMsg->hwnd, TVM_TRANSLATEACCELERATOR, 0, (LPARAM)pMsg) ? S_OK : S_FALSE; } else { CComQIPtr<IOleControlSite, &IID_IOleControlSite>spCtrlSite(m_spClientSite); if (spCtrlSite) return spCtrlSite->TranslateAccelerator(pMsg,0); } return S_FALSE;}
HRESULT CNscTree::SetObjectRects(LPCRECT prcPos, LPCRECT prcClip){ HRESULT hr = IOleInPlaceObjectWindowlessImpl<CNscTree>::SetObjectRects(prcPos, prcClip); LONG lTop = 0;
if (_hwndHdr) { RECT rc;
::GetWindowRect(_hwndHdr, &rc); lTop = RECTHEIGHT(rc); ::SetWindowPos(_hwndHdr, NULL, 0, 0, RECTWIDTH(*prcPos), lTop, SWP_NOZORDER | SWP_NOACTIVATE); }
if (_hwndTree) { ::SetWindowPos(_hwndTree, NULL, 0, lTop, RECTWIDTH(*prcPos), RECTHEIGHT(*prcPos)-lTop, SWP_NOZORDER | SWP_NOACTIVATE); }
return hr;}
STDMETHODIMP CNscTree::SetClientSite(IOleClientSite *pClientSite){ SetSite(pClientSite); return IOleObjectImpl<CNscTree>::SetClientSite(pClientSite);}
HRESULT CNscTree::OnDraw(ATL_DRAWINFO& di){ //should only get called before CNscTree is initialized
return S_OK;}
LRESULT CNscTree::OnDestroy(UINT uMsg, WPARAM wParam, LPARAM lParam, BOOL &bHandled){ bHandled = FALSE; //let default handler also do it's work
_OnWindowCleanup(); return 0;}
BOOL IsChannelFolder(LPCWSTR pwzPath, LPWSTR pwzChannelURL);
HRESULT CNscTree::GetEventInfo(IShellFolder *psf, LPCITEMIDLIST pidl, UINT *pcItems, LPWSTR pszUrl, DWORD cchUrl, UINT *pcVisits, LPWSTR pszLastVisited, BOOL *pfAvailableOffline){ HRESULT hr = S_OK; TCHAR szPath[MAX_PATH]; TCHAR szUrl[MAX_URL_STRING];
szPath[0] = szUrl[0] = 0; *pcItems = 1; ULONG ulAttr = SFGAO_FOLDER; // make sure item is actually a folder
hr = GetPathForItem(psf, pidl, szPath, &ulAttr); if (SUCCEEDED(hr) && (ulAttr & SFGAO_FOLDER)) { pszLastVisited[0] = 0; StrCpyN(pszUrl, szPath, cchUrl);
WIN32_FIND_DATA fd; HANDLE hfind = FindFirstFile(szPath, &fd); if (hfind != INVALID_HANDLE_VALUE) { SHFormatDateTime(&(fd.ftLastWriteTime), NULL, pszLastVisited, MAX_PATH); FindClose(hfind); } *pcVisits = -1; *pfAvailableOffline = 0; return S_OK; } if (FAILED(hr)) { // GetPathForItem fails on channel folders, but the following GetDisplayNameOf
// succeeds.
STRRET str; if (SUCCEEDED(psf->GetDisplayNameOf(pidl, SHGDN_FORPARSING, &str))) StrRetToBuf(&str, pidl, szPath, ARRAYSIZE(szPath)); }
hr = GetNavTargetName(psf, pidl, szUrl, ARRAYSIZE(szUrl));
// IsChannelFolder will fixup szUrl if it's a channel
IsChannelFolder(szPath, szUrl);
if (szUrl[0]) { SHTCharToUnicode(szUrl, pszUrl, cchUrl);
//
// Get the cache info for this item. Note that we use GetUrlCacheEntryInfoEx instead
// of GetUrlCacheEntryInfo because it follows any redirects that occured. This wacky
// api uses a variable length buffer, so we have to guess the size and retry if the
// call fails.
//
BOOL fInCache = FALSE; TCHAR szBuf[512]; LPINTERNET_CACHE_ENTRY_INFO pCE = (LPINTERNET_CACHE_ENTRY_INFO)szBuf; DWORD dwEntrySize = sizeof(szBuf); fInCache = GetUrlCacheEntryInfoEx(szUrl, pCE, &dwEntrySize, NULL, NULL, NULL, 0); if (!fInCache) { if (GetLastError() == ERROR_INSUFFICIENT_BUFFER) { // We guessed too small for the buffer so allocate the correct size & retry
pCE = (LPINTERNET_CACHE_ENTRY_INFO)LocalAlloc(LPTR, dwEntrySize); if (pCE) { fInCache = GetUrlCacheEntryInfoEx(szUrl, pCE, &dwEntrySize, NULL, NULL, NULL, 0); } } }
*pfAvailableOffline = IsSubscribed(szUrl);
if (fInCache) { *pcVisits = pCE->dwHitRate;
SHFormatDateTime(&(pCE->LastAccessTime), NULL, pszLastVisited, MAX_PATH); } else { *pcVisits = 0; pszLastVisited[0] = 0; }
if ((TCHAR*)pCE != szBuf) { LocalFree(pCE); pCE = NULL; } } else { *pcVisits = 0; SHTCharToUnicode(szPath, pszUrl, cchUrl); } return hr;}
// [id(DISPID_FAVSELECTIONCHANGE)] void FavoritesSelectionChange([in] long cItems, [in] long hItem, [in] BSTR strName,
// [in] BSTR strUrl, [in] long cVisits, [in] BSTR strDate,
// [in] BOOL fAvailableOffline);
void CNscTree::_FireFavoritesSelectionChange( long cItems, long hItem, BSTR strName, BSTR strUrl, long cVisits, BSTR strDate, long fAvailableOffline){ VARIANTARG args[7];
IUnknown_CPContainerInvokeParam(SAFECAST(this, IShellNameSpace *), DIID_DShellNameSpaceEvents, DISPID_FAVSELECTIONCHANGE, args, ARRAYSIZE(args), VT_I4, cItems, VT_I4, hItem, VT_BSTR, strName, VT_BSTR, strUrl, VT_I4, cVisits, VT_BSTR, strDate, VT_I4, fAvailableOffline);}
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