dlls/explorerframe/nstc.c

   1 /*
   2  * NamespaceTreeControl implementation.
   3  *
   4  * Copyright 2010 David Hedberg
   5  *
   6  * This library is free software; you can redistribute it and/or
   7  * modify it under the terms of the GNU Lesser General Public
   8  * License as published by the Free Software Foundation; either
   9  * version 2.1 of the License, or (at your option) any later version.
  10  *
  11  * This library is distributed in the hope that it will be useful,
  12  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  14  * Lesser General Public License for more details.
  15  *
  16  * You should have received a copy of the GNU Lesser General Public
  17  * License along with this library; if not, write to the Free Software
  18  * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
  19  */
  20
  21 #include <stdarg.h>
  22
  23 #define COBJMACROS
  24 #define NONAMELESSUNION
  25
  26 #include "winerror.h"
  27 #include "windef.h"
  28 #include "winbase.h"
  29 #include "winuser.h"
  30 #include "shellapi.h"
  31 #include "commctrl.h"
  32 #include "commoncontrols.h"
  33
  34 #include "wine/list.h"
  35 #include "wine/debug.h"
  36 #include "wine/heap.h"
  37
  38 #include "explorerframe_main.h"
  39
  40 WINE_DEFAULT_DEBUG_CHANNEL(nstc);
  41
  42 typedef struct nstc_root {
  43     IShellItem *psi;
  44     HTREEITEM htreeitem;
  45     SHCONTF enum_flags;
  46     NSTCROOTSTYLE root_style;
  47     IShellItemFilter *pif;
  48     struct list entry;
  49 } nstc_root;
  50
  51 typedef struct {
  52     INameSpaceTreeControl2 INameSpaceTreeControl2_iface;
  53     IOleWindow IOleWindow_iface;
  54     LONG ref;
  55
  56     HWND hwnd_main;
  57     HWND hwnd_tv;
  58
  59     WNDPROC tv_oldwndproc;
  60
  61     NSTCSTYLE style;
  62     NSTCSTYLE2 style2;
  63     struct list roots;
  64
  65     INameSpaceTreeControlCustomDraw *customdraw;
  66     INameSpaceTreeControlDropHandler *dragdrop;
  67     INameSpaceTreeControlEvents *events;
  68 } NSTC2Impl;
  69
  70 static const DWORD unsupported_styles =
  71     NSTCS_SINGLECLICKEXPAND | NSTCS_NOREPLACEOPEN | NSTCS_NOORDERSTREAM | NSTCS_FAVORITESMODE |
  72     NSTCS_EMPTYTEXT | NSTCS_ALLOWJUNCTIONS | NSTCS_SHOWTABSBUTTON | NSTCS_SHOWDELETEBUTTON |
  73     NSTCS_SHOWREFRESHBUTTON | NSTCS_SPRINGEXPAND | NSTCS_RICHTOOLTIP | NSTCS_NOINDENTCHECKS;
  74 static const DWORD unsupported_styles2 =
  75     NSTCS2_INTERRUPTNOTIFICATIONS | NSTCS2_SHOWNULLSPACEMENU | NSTCS2_DISPLAYPADDING |
  76     NSTCS2_DISPLAYPINNEDONLY | NTSCS2_NOSINGLETONAUTOEXPAND | NTSCS2_NEVERINSERTNONENUMERATED;
  77
  78 static const WCHAR thispropW[] = {'P','R','O','P','_','T','H','I','S',0};
  79
  80 static inline NSTC2Impl *impl_from_INameSpaceTreeControl2(INameSpaceTreeControl2 *iface)
  81 {
  82     return CONTAINING_RECORD(iface, NSTC2Impl, INameSpaceTreeControl2_iface);
  83 }
  84
  85 static inline NSTC2Impl *impl_from_IOleWindow(IOleWindow *iface)
  86 {
  87     return CONTAINING_RECORD(iface, NSTC2Impl, IOleWindow_iface);
  88 }
  89
  90 /* Forward declarations */
  91 static LRESULT CALLBACK tv_wndproc(HWND hWnd, UINT uMessage, WPARAM wParam, LPARAM lParam);
  92
  93 /*************************************************************************
  94 * NamespaceTree event wrappers
  95 */
  96 static HRESULT events_OnGetDefaultIconIndex(NSTC2Impl *This, IShellItem *psi,
  97                                             int *piDefaultIcon, int *piOpenIcon)
  98 {
  99     HRESULT ret;
 100     LONG refcount;
 101     if(!This->events) return E_NOTIMPL;
 102
 103     refcount = IShellItem_AddRef(psi);
 104     ret = INameSpaceTreeControlEvents_OnGetDefaultIconIndex(This->events, psi, piDefaultIcon, piOpenIcon);
 105     if(IShellItem_Release(psi) < refcount - 1)
 106         ERR("ShellItem was released by client - please file a bug.\n");
 107     return ret;
 108 }
 109
 110 static HRESULT events_OnItemAdded(NSTC2Impl *This, IShellItem *psi, BOOL fIsRoot)
 111 {
 112     HRESULT ret;
 113     LONG refcount;
 114     if(!This->events) return S_OK;
 115
 116     refcount = IShellItem_AddRef(psi);
 117     ret = INameSpaceTreeControlEvents_OnItemAdded(This->events, psi, fIsRoot);
 118     if(IShellItem_Release(psi) < refcount - 1)
 119         ERR("ShellItem was released by client - please file a bug.\n");
 120     return ret;
 121 }
 122
 123 static HRESULT events_OnItemDeleted(NSTC2Impl *This, IShellItem *psi, BOOL fIsRoot)
 124 {
 125     HRESULT ret;
 126     LONG refcount;
 127     if(!This->events) return S_OK;
 128
 129     refcount = IShellItem_AddRef(psi);
 130     ret = INameSpaceTreeControlEvents_OnItemDeleted(This->events, psi, fIsRoot);
 131     if(IShellItem_Release(psi) < refcount - 1)
 132         ERR("ShellItem was released by client - please file a bug.\n");
 133     return ret;
 134 }
 135
 136 static HRESULT events_OnBeforeExpand(NSTC2Impl *This, IShellItem *psi)
 137 {
 138     HRESULT ret;
 139     LONG refcount;
 140     if(!This->events) return S_OK;
 141
 142     refcount = IShellItem_AddRef(psi);
 143     ret = INameSpaceTreeControlEvents_OnBeforeExpand(This->events, psi);
 144     if(IShellItem_Release(psi) < refcount - 1)
 145         ERR("ShellItem was released by client - please file a bug.\n");
 146     return ret;
 147 }
 148
 149 static HRESULT events_OnAfterExpand(NSTC2Impl *This, IShellItem *psi)
 150 {
 151     HRESULT ret;
 152     LONG refcount;
 153     if(!This->events) return S_OK;
 154
 155     refcount = IShellItem_AddRef(psi);
 156     ret = INameSpaceTreeControlEvents_OnAfterExpand(This->events, psi);
 157     if(IShellItem_Release(psi) < refcount - 1)
 158         ERR("ShellItem was released by client - please file a bug.\n");
 159     return ret;
 160 }
 161
 162 static HRESULT events_OnItemClick(NSTC2Impl *This, IShellItem *psi,
 163                                   NSTCEHITTEST nstceHitTest, NSTCECLICKTYPE nstceClickType)
 164 {
 165     HRESULT ret;
 166     LONG refcount;
 167     if(!This->events) return S_OK;
 168
 169     refcount = IShellItem_AddRef(psi);
 170     ret = INameSpaceTreeControlEvents_OnItemClick(This->events, psi, nstceHitTest, nstceClickType);
 171     if(IShellItem_Release(psi) < refcount - 1)
 172         ERR("ShellItem was released by client - please file a bug.\n");
 173     return ret;
 174 }
 175
 176 static HRESULT events_OnSelectionChanged(NSTC2Impl *This, IShellItemArray *psia)
 177 {
 178     if(!This->events) return S_OK;
 179
 180     return INameSpaceTreeControlEvents_OnSelectionChanged(This->events, psia);
 181 }
 182
 183 static HRESULT events_OnKeyboardInput(NSTC2Impl *This, UINT uMsg, WPARAM wParam, LPARAM lParam)
 184 {
 185     if(!This->events) return S_OK;
 186
 187     return INameSpaceTreeControlEvents_OnKeyboardInput(This->events, uMsg, wParam, lParam);
 188 }
 189
 190 /*************************************************************************
 191  * NamespaceTree helper functions
 192  */
 193 static DWORD treeview_style_from_nstcs(NSTC2Impl *This, NSTCSTYLE nstcs,
 194                                        NSTCSTYLE nstcs_mask, DWORD *new_style)
 195 {
 196     DWORD old_style, tv_mask = 0;
 197     TRACE("%p, %x, %x, %p\n", This, nstcs, nstcs_mask, new_style);
 198
 199     if(This->hwnd_tv)
 200         old_style = GetWindowLongPtrW(This->hwnd_tv, GWL_STYLE);
 201     else
 202         old_style = /* The default */
 203             WS_CHILD | WS_VISIBLE | WS_CLIPSIBLINGS | WS_CLIPCHILDREN |
 204             WS_TABSTOP | TVS_NOHSCROLL | TVS_NONEVENHEIGHT | TVS_INFOTIP |
 205             TVS_EDITLABELS | TVS_TRACKSELECT;
 206
 207     if(nstcs_mask & NSTCS_HASEXPANDOS)         tv_mask |= TVS_HASBUTTONS;
 208     if(nstcs_mask & NSTCS_HASLINES)            tv_mask |= TVS_HASLINES;
 209     if(nstcs_mask & NSTCS_FULLROWSELECT)       tv_mask |= TVS_FULLROWSELECT;
 210     if(nstcs_mask & NSTCS_HORIZONTALSCROLL)    tv_mask |= TVS_NOHSCROLL;
 211     if(nstcs_mask & NSTCS_ROOTHASEXPANDO)      tv_mask |= TVS_LINESATROOT;
 212     if(nstcs_mask & NSTCS_SHOWSELECTIONALWAYS) tv_mask |= TVS_SHOWSELALWAYS;
 213     if(nstcs_mask & NSTCS_NOINFOTIP)           tv_mask |= TVS_INFOTIP;
 214     if(nstcs_mask & NSTCS_EVENHEIGHT)          tv_mask |= TVS_NONEVENHEIGHT;
 215     if(nstcs_mask & NSTCS_DISABLEDRAGDROP)     tv_mask |= TVS_DISABLEDRAGDROP;
 216     if(nstcs_mask & NSTCS_NOEDITLABELS)        tv_mask |= TVS_EDITLABELS;
 217     if(nstcs_mask & NSTCS_CHECKBOXES)          tv_mask |= TVS_CHECKBOXES;
 218
 219     *new_style = 0;
 220
 221     if(nstcs & NSTCS_HASEXPANDOS)         *new_style |= TVS_HASBUTTONS;
 222     if(nstcs & NSTCS_HASLINES)            *new_style |= TVS_HASLINES;
 223     if(nstcs & NSTCS_FULLROWSELECT)       *new_style |= TVS_FULLROWSELECT;
 224     if(!(nstcs & NSTCS_HORIZONTALSCROLL)) *new_style |= TVS_NOHSCROLL;
 225     if(nstcs & NSTCS_ROOTHASEXPANDO)      *new_style |= TVS_LINESATROOT;
 226     if(nstcs & NSTCS_SHOWSELECTIONALWAYS) *new_style |= TVS_SHOWSELALWAYS;
 227     if(!(nstcs & NSTCS_NOINFOTIP))        *new_style |= TVS_INFOTIP;
 228     if(!(nstcs & NSTCS_EVENHEIGHT))       *new_style |= TVS_NONEVENHEIGHT;
 229     if(nstcs & NSTCS_DISABLEDRAGDROP)     *new_style |= TVS_DISABLEDRAGDROP;
 230     if(!(nstcs & NSTCS_NOEDITLABELS))     *new_style |= TVS_EDITLABELS;
 231     if(nstcs & NSTCS_CHECKBOXES)          *new_style |= TVS_CHECKBOXES;
 232
 233     *new_style = (old_style & ~tv_mask) | (*new_style & tv_mask);
 234
 235     TRACE("old: %08x, new: %08x\n", old_style, *new_style);
 236
 237     return old_style^*new_style;
 238 }
 239
 240 static IShellItem *shellitem_from_treeitem(NSTC2Impl *This, HTREEITEM hitem)
 241 {
 242     TVITEMEXW tvi;
 243
 244     tvi.mask = TVIF_PARAM;
 245     tvi.lParam = 0;
 246     tvi.hItem = hitem;
 247
 248     SendMessageW(This->hwnd_tv, TVM_GETITEMW, 0, (LPARAM)&tvi);
 249
 250     TRACE("ShellItem: %p\n", (void*)tvi.lParam);
 251     return (IShellItem*)tvi.lParam;
 252 }
 253
 254 /* Returns the root that the given treeitem belongs to. */
 255 static nstc_root *root_for_treeitem(NSTC2Impl *This, HTREEITEM hitem)
 256 {
 257     HTREEITEM tmp, hroot = hitem;
 258     nstc_root *root;
 259
 260     /* Work our way up the hierarchy */
 261     for(tmp = hitem; tmp != NULL; hroot = tmp?tmp:hroot)
 262         tmp = (HTREEITEM)SendMessageW(This->hwnd_tv, TVM_GETNEXTITEM, TVGN_PARENT, (LPARAM)hroot);
 263
 264     /* Search through the list of roots for a match */
 265     LIST_FOR_EACH_ENTRY(root, &This->roots, nstc_root, entry)
 266         if(root->htreeitem == hroot)
 267             break;
 268
 269     TRACE("root is %p\n", root);
 270     return root;
 271 }
 272
 273 /* Find a shellitem in the tree, starting from the given node. */
 274 static HTREEITEM search_for_shellitem(NSTC2Impl *This, HTREEITEM node,
 275                                       IShellItem *psi)
 276 {
 277     IShellItem *psi_node;
 278     HTREEITEM next, result = NULL;
 279     HRESULT hr;
 280     int cmpo;
 281     TRACE("%p, %p, %p\n", This, node, psi);
 282
 283     /* Check this node */
 284     psi_node = shellitem_from_treeitem(This, node);
 285     hr = IShellItem_Compare(psi, psi_node, SICHINT_DISPLAY, &cmpo);
 286     if(hr == S_OK)
 287         return node;
 288
 289     /* Any children? */
 290     next = (HTREEITEM)SendMessageW(This->hwnd_tv, TVM_GETNEXTITEM,
 291                                    TVGN_CHILD, (LPARAM)node);
 292     if(next)
 293     {
 294         result = search_for_shellitem(This, next, psi);
 295         if(result) return result;
 296     }
 297
 298     /* Try our next sibling. */
 299     next = (HTREEITEM)SendMessageW(This->hwnd_tv, TVM_GETNEXTITEM,
 300                                    TVGN_NEXT, (LPARAM)node);
 301     if(next)
 302         result = search_for_shellitem(This, next, psi);
 303
 304     return result;
 305 }
 306
 307 static HTREEITEM treeitem_from_shellitem(NSTC2Impl *This, IShellItem *psi)
 308 {
 309     HTREEITEM root;
 310     TRACE("%p, %p\n", This, psi);
 311
 312     root = (HTREEITEM)SendMessageW(This->hwnd_tv, TVM_GETNEXTITEM,
 313                                    TVGN_ROOT, 0);
 314     if(!root)
 315         return NULL;
 316
 317     return search_for_shellitem(This, root, psi);
 318 }
 319
 320 static int get_icon(LPCITEMIDLIST lpi, UINT extra_flags)
 321 {
 322     SHFILEINFOW sfi;
 323     UINT flags = SHGFI_PIDL | SHGFI_SYSICONINDEX | SHGFI_SMALLICON;
 324     IImageList *list;
 325
 326     list = (IImageList *)SHGetFileInfoW((LPCWSTR)lpi, 0 ,&sfi, sizeof(SHFILEINFOW), flags | extra_flags);
 327     if (list) IImageList_Release(list);
 328     return sfi.iIcon;
 329 }
 330
 331 /* Insert a shellitem into the given place in the tree and return the
 332    resulting treeitem. */
 333 static HTREEITEM insert_shellitem(NSTC2Impl *This, IShellItem *psi,
 334                                   HTREEITEM hParent, HTREEITEM hInsertAfter)
 335 {
 336     TVINSERTSTRUCTW tvins;
 337     TVITEMEXW *tvi = &tvins.u.itemex;
 338     HTREEITEM hinserted;
 339     TRACE("%p (%p, %p)\n", psi, hParent, hInsertAfter);
 340
 341     tvi->mask = TVIF_PARAM | TVIF_CHILDREN | TVIF_IMAGE | TVIF_SELECTEDIMAGE | TVIF_TEXT;
 342     tvi->cChildren = I_CHILDRENCALLBACK;
 343     tvi->iImage = tvi->iSelectedImage = I_IMAGECALLBACK;
 344     tvi->pszText = LPSTR_TEXTCALLBACKW;
 345
 346     /* Every treeitem contains a pointer to the corresponding ShellItem. */
 347     tvi->lParam = (LPARAM)psi;
 348     tvins.hParent = hParent;
 349     tvins.hInsertAfter = hInsertAfter;
 350
 351     hinserted = (HTREEITEM)SendMessageW(This->hwnd_tv, TVM_INSERTITEMW, 0,
 352                                         (LPARAM)(LPTVINSERTSTRUCTW)&tvins);
 353     if(hinserted)
 354         IShellItem_AddRef(psi);
 355
 356     return hinserted;
 357 }
 358
 359 /* Enumerates the children of the folder represented by hitem
 360  * according to the settings for the root, and adds them to the
 361  * treeview. Returns the number of children added. */
 362 static UINT fill_sublevel(NSTC2Impl *This, HTREEITEM hitem)
 363 {
 364     IShellItem *psiParent = shellitem_from_treeitem(This, hitem);
 365     nstc_root *root = root_for_treeitem(This, hitem);
 366     LPITEMIDLIST pidl_parent;
 367     IShellFolder *psf;
 368     IEnumIDList *peidl;
 369     UINT added = 0;
 370     HRESULT hr;
 371
 372     hr = SHGetIDListFromObject((IUnknown*)psiParent, &pidl_parent);
 373     if(SUCCEEDED(hr))
 374     {
 375         hr = IShellItem_BindToHandler(psiParent, NULL, &BHID_SFObject, &IID_IShellFolder, (void**)&psf);
 376         if(SUCCEEDED(hr))
 377         {
 378             hr = IShellFolder_EnumObjects(psf, NULL, root->enum_flags, &peidl);
 379             if(SUCCEEDED(hr))
 380             {
 381                 LPITEMIDLIST pidl;
 382                 IShellItem *psi;
 383                 ULONG fetched;
 384
 385                 while( S_OK == IEnumIDList_Next(peidl, 1, &pidl, &fetched) )
 386                 {
 387                     hr = SHCreateShellItem(NULL, psf , pidl, &psi);
 388                     ILFree(pidl);
 389                     if(SUCCEEDED(hr))
 390                     {
 391                         if(insert_shellitem(This, psi, hitem, NULL))
 392                         {
 393                             events_OnItemAdded(This, psi, FALSE);
 394                             added++;
 395                         }
 396
 397                         IShellItem_Release(psi);
 398                     }
 399                     else
 400                         ERR("SHCreateShellItem failed with 0x%08x\n", hr);
 401                 }
 402                 IEnumIDList_Release(peidl);
 403             }
 404             else
 405                 ERR("EnumObjects failed with 0x%08x\n", hr);
 406
 407             IShellFolder_Release(psf);
 408         }
 409         else
 410             ERR("BindToHandler failed with 0x%08x\n", hr);
 411
 412         ILFree(pidl_parent);
 413     }
 414     else
 415         ERR("SHGetIDListFromObject failed with 0x%08x\n", hr);
 416
 417     return added;
 418 }
 419
 420 static HTREEITEM get_selected_treeitem(NSTC2Impl *This)
 421 {
 422     return (HTREEITEM)SendMessageW(This->hwnd_tv, TVM_GETNEXTITEM, TVGN_CARET, 0);
 423 }
 424
 425 static IShellItem *get_selected_shellitem(NSTC2Impl *This)
 426 {
 427     return shellitem_from_treeitem(This, get_selected_treeitem(This));
 428 }
 429
 430 static void collapse_all(NSTC2Impl *This, HTREEITEM node)
 431 {
 432     HTREEITEM next;
 433
 434     /* Collapse this node first, and then first child/next sibling. */
 435     SendMessageW(This->hwnd_tv, TVM_EXPAND, TVE_COLLAPSE, (LPARAM)node);
 436
 437     next = (HTREEITEM)SendMessageW(This->hwnd_tv, TVM_GETNEXTITEM, TVGN_CHILD, (LPARAM)node);
 438     if(next) collapse_all(This, next);
 439
 440     next = (HTREEITEM)SendMessageW(This->hwnd_tv, TVM_GETNEXTITEM, TVGN_NEXT, (LPARAM)node);
 441     if(next) collapse_all(This, next);
 442 }
 443
 444 static HTREEITEM treeitem_from_point(NSTC2Impl *This, const POINT *pt, UINT *hitflag)
 445 {
 446     TVHITTESTINFO tviht;
 447     tviht.pt.x = pt->x;
 448     tviht.pt.y = pt->y;
 449     tviht.hItem = NULL;
 450
 451     SendMessageW(This->hwnd_tv, TVM_HITTEST, 0, (LPARAM)&tviht);
 452     if(hitflag) *hitflag = tviht.flags;
 453     return tviht.hItem;
 454 }
 455
 456 /*************************************************************************
 457  * NamespaceTree window functions
 458  */
 459 static LRESULT create_namespacetree(HWND hWnd, CREATESTRUCTW *crs)
 460 {
 461     NSTC2Impl *This = crs->lpCreateParams;
 462     HIMAGELIST ShellSmallIconList;
 463     DWORD treeview_style, treeview_ex_style;
 464
 465     TRACE("%p (%p)\n", This, crs);
 466     SetWindowLongPtrW(hWnd, GWLP_USERDATA, (LPARAM)This);
 467     This->hwnd_main = hWnd;
 468
 469     treeview_style_from_nstcs(This, This->style, 0xFFFFFFFF, &treeview_style);
 470
 471     This->hwnd_tv = CreateWindowExW(0, WC_TREEVIEWW, NULL, treeview_style,
 472                                     0, 0, crs->cx, crs->cy,
 473                                     hWnd, NULL, explorerframe_hinstance, NULL);
 474
 475     if(!This->hwnd_tv)
 476     {
 477         ERR("Failed to create treeview!\n");
 478         return HRESULT_FROM_WIN32(GetLastError());
 479     }
 480
 481     treeview_ex_style = TVS_EX_DRAWIMAGEASYNC | TVS_EX_RICHTOOLTIP |
 482         TVS_EX_DOUBLEBUFFER | TVS_EX_NOSINGLECOLLAPSE;
 483
 484     if(This->style & NSTCS_AUTOHSCROLL)
 485         treeview_ex_style |= TVS_EX_AUTOHSCROLL;
 486     if(This->style & NSTCS_FADEINOUTEXPANDOS)
 487         treeview_ex_style |= TVS_EX_FADEINOUTEXPANDOS;
 488     if(This->style & NSTCS_PARTIALCHECKBOXES)
 489         treeview_ex_style |= TVS_EX_PARTIALCHECKBOXES;
 490     if(This->style & NSTCS_EXCLUSIONCHECKBOXES)
 491         treeview_ex_style |= TVS_EX_EXCLUSIONCHECKBOXES;
 492     if(This->style & NSTCS_DIMMEDCHECKBOXES)
 493         treeview_ex_style |= TVS_EX_DIMMEDCHECKBOXES;
 494
 495     SendMessageW(This->hwnd_tv, TVM_SETEXTENDEDSTYLE, treeview_ex_style, 0xffff);
 496
 497     if(Shell_GetImageLists(NULL, &ShellSmallIconList))
 498     {
 499         SendMessageW(This->hwnd_tv, TVM_SETIMAGELIST,
 500                      (WPARAM)TVSIL_NORMAL, (LPARAM)ShellSmallIconList);
 501     }
 502     else
 503     {
 504         ERR("Failed to get the System Image List.\n");
 505     }
 506
 507     INameSpaceTreeControl2_AddRef(&This->INameSpaceTreeControl2_iface);
 508
 509     /* Subclass the treeview to get the keyboard events. */
 510     This->tv_oldwndproc = (WNDPROC)SetWindowLongPtrW(This->hwnd_tv, GWLP_WNDPROC,
 511                                                      (ULONG_PTR)tv_wndproc);
 512     if(This->tv_oldwndproc)
 513         SetPropW(This->hwnd_tv, thispropW, This);
 514
 515     return TRUE;
 516 }
 517
 518 static LRESULT resize_namespacetree(NSTC2Impl *This)
 519 {
 520     RECT rc;
 521     TRACE("%p\n", This);
 522
 523     GetClientRect(This->hwnd_main, &rc);
 524     MoveWindow(This->hwnd_tv, 0, 0, rc.right-rc.left, rc.bottom-rc.top, TRUE);
 525
 526     return TRUE;
 527 }
 528
 529 static LRESULT destroy_namespacetree(NSTC2Impl *This)
 530 {
 531     TRACE("%p\n", This);
 532
 533     /* Undo the subclassing */
 534     if(This->tv_oldwndproc)
 535     {
 536         SetWindowLongPtrW(This->hwnd_tv, GWLP_WNDPROC, (ULONG_PTR)This->tv_oldwndproc);
 537         RemovePropW(This->hwnd_tv, thispropW);
 538     }
 539
 540     INameSpaceTreeControl2_RemoveAllRoots(&This->INameSpaceTreeControl2_iface);
 541
 542     /* This reference was added in create_namespacetree */
 543     INameSpaceTreeControl2_Release(&This->INameSpaceTreeControl2_iface);
 544     return TRUE;
 545 }
 546
 547 static LRESULT on_tvn_deleteitemw(NSTC2Impl *This, LPARAM lParam)
 548 {
 549     NMTREEVIEWW *nmtv = (NMTREEVIEWW*)lParam;
 550     TRACE("%p\n", This);
 551
 552     IShellItem_Release((IShellItem*)nmtv->itemOld.lParam);
 553     return TRUE;
 554 }
 555
 556 static LRESULT on_tvn_getdispinfow(NSTC2Impl *This, LPARAM lParam)
 557 {
 558     NMTVDISPINFOW *dispinfo = (NMTVDISPINFOW*)lParam;
 559     TVITEMEXW *item = (TVITEMEXW*)&dispinfo->item;
 560     IShellItem *psi = shellitem_from_treeitem(This, item->hItem);
 561     HRESULT hr;
 562
 563     TRACE("%p, %p (mask: %x)\n", This, dispinfo, item->mask);
 564
 565     if(item->mask & TVIF_CHILDREN)
 566     {
 567         SFGAOF sfgao;
 568
 569         hr = IShellItem_GetAttributes(psi, SFGAO_HASSUBFOLDER, &sfgao);
 570         if(SUCCEEDED(hr))
 571             item->cChildren = (sfgao & SFGAO_HASSUBFOLDER)?1:0;
 572         else
 573             item->cChildren = 1;
 574
 575         item->mask |= TVIF_DI_SETITEM;
 576     }
 577
 578     if(item->mask & (TVIF_IMAGE|TVIF_SELECTEDIMAGE))
 579     {
 580         LPITEMIDLIST pidl;
 581
 582         hr = events_OnGetDefaultIconIndex(This, psi, &item->iImage, &item->iSelectedImage);
 583         if(FAILED(hr))
 584         {
 585             hr = SHGetIDListFromObject((IUnknown*)psi, &pidl);
 586             if(SUCCEEDED(hr))
 587             {
 588                 item->iImage = item->iSelectedImage = get_icon(pidl, 0);
 589                 item->mask |= TVIF_DI_SETITEM;
 590                 ILFree(pidl);
 591             }
 592             else
 593                 ERR("Failed to get IDList (%08x).\n", hr);
 594         }
 595     }
 596
 597     if(item->mask & TVIF_TEXT)
 598     {
 599         LPWSTR display_name;
 600
 601         hr = IShellItem_GetDisplayName(psi, SIGDN_NORMALDISPLAY, &display_name);
 602         if(SUCCEEDED(hr))
 603         {
 604             lstrcpynW(item->pszText, display_name, MAX_PATH);
 605             item->mask |= TVIF_DI_SETITEM;
 606             CoTaskMemFree(display_name);
 607         }
 608         else
 609             ERR("Failed to get display name (%08x).\n", hr);
 610     }
 611
 612     return TRUE;
 613 }
 614
 615 static BOOL treenode_has_subfolders(NSTC2Impl *This, HTREEITEM node)
 616 {
 617     return SendMessageW(This->hwnd_tv, TVM_GETNEXTITEM, TVGN_CHILD, (LPARAM)node);
 618 }
 619
 620 static LRESULT on_tvn_itemexpandingw(NSTC2Impl *This, LPARAM lParam)
 621 {
 622     NMTREEVIEWW *nmtv = (NMTREEVIEWW*)lParam;
 623     IShellItem *psi;
 624     TRACE("%p\n", This);
 625
 626     psi = shellitem_from_treeitem(This, nmtv->itemNew.hItem);
 627     events_OnBeforeExpand(This, psi);
 628
 629     if(!treenode_has_subfolders(This, nmtv->itemNew.hItem))
 630     {
 631         /* The node has no children, try to find some */
 632         if(!fill_sublevel(This, nmtv->itemNew.hItem))
 633         {
 634             TVITEMEXW tvi;
 635             /* Failed to enumerate any children, remove the expando
 636              * (if any). */
 637             tvi.hItem = nmtv->itemNew.hItem;
 638             tvi.mask = TVIF_CHILDREN;
 639             tvi.cChildren = 0;
 640             SendMessageW(This->hwnd_tv, TVM_SETITEMW, 0, (LPARAM)&tvi);
 641
 642             return TRUE;
 643         }
 644     }
 645     return FALSE;
 646 }
 647
 648 static LRESULT on_tvn_itemexpandedw(NSTC2Impl *This, LPARAM lParam)
 649 {
 650     NMTREEVIEWW *nmtv = (NMTREEVIEWW*)lParam;
 651     IShellItem *psi;
 652     TRACE("%p\n", This);
 653
 654     psi = shellitem_from_treeitem(This, nmtv->itemNew.hItem);
 655     events_OnAfterExpand(This, psi);
 656     return TRUE;
 657 }
 658
 659 static LRESULT on_tvn_selchangedw(NSTC2Impl *This, LPARAM lParam)
 660 {
 661     NMTREEVIEWW *nmtv = (NMTREEVIEWW*)lParam;
 662     IShellItemArray *psia;
 663     IShellItem *psi;
 664     HRESULT hr;
 665     TRACE("%p\n", This);
 666
 667     /* Note: Only supports one selected item. */
 668     psi = shellitem_from_treeitem(This, nmtv->itemNew.hItem);
 669     hr = SHCreateShellItemArrayFromShellItem(psi, &IID_IShellItemArray, (void**)&psia);
 670     if(SUCCEEDED(hr))
 671     {
 672         events_OnSelectionChanged(This, psia);
 673         IShellItemArray_Release(psia);
 674     }
 675
 676     return TRUE;
 677 }
 678
 679 static LRESULT on_nm_click(NSTC2Impl *This, NMHDR *nmhdr)
 680 {
 681     TVHITTESTINFO tvhit;
 682     IShellItem *psi;
 683     HRESULT hr;
 684     TRACE("%p (%p)\n", This, nmhdr);
 685
 686     GetCursorPos(&tvhit.pt);
 687     ScreenToClient(This->hwnd_tv, &tvhit.pt);
 688     SendMessageW(This->hwnd_tv, TVM_HITTEST, 0, (LPARAM)&tvhit);
 689
 690     if(tvhit.flags & (TVHT_NOWHERE|TVHT_ABOVE|TVHT_BELOW))
 691         return TRUE;
 692
 693     /* TVHT_ maps onto the corresponding NSTCEHT_ */
 694     psi = shellitem_from_treeitem(This, tvhit.hItem);
 695     hr = events_OnItemClick(This, psi, tvhit.flags, NSTCECT_LBUTTON);
 696
 697     /* The expando should not be expanded unless
 698      * double-clicked. */
 699     if(tvhit.flags == TVHT_ONITEMBUTTON)
 700         return TRUE;
 701
 702     if(SUCCEEDED(hr))
 703         return FALSE;
 704     else
 705         return TRUE;
 706 }
 707
 708 static LRESULT on_wm_mbuttonup(NSTC2Impl *This, WPARAM wParam, LPARAM lParam)
 709 {
 710     TVHITTESTINFO tvhit;
 711     IShellItem *psi;
 712     HRESULT hr;
 713     TRACE("%p (%lx, %lx)\n", This, wParam, lParam);
 714
 715     tvhit.pt.x = (int)(short)LOWORD(lParam);
 716     tvhit.pt.y = (int)(short)HIWORD(lParam);
 717
 718     SendMessageW(This->hwnd_tv, TVM_HITTEST, 0, (LPARAM)&tvhit);
 719
 720     /* Seems to generate only ONITEM and ONITEMICON */
 721     if( !(tvhit.flags & (TVHT_ONITEM|TVHT_ONITEMICON)) )
 722         return FALSE;
 723
 724     psi = shellitem_from_treeitem(This, tvhit.hItem);
 725     hr = events_OnItemClick(This, psi, tvhit.flags, NSTCECT_MBUTTON);
 726
 727     if(SUCCEEDED(hr))
 728         return FALSE;
 729     else
 730         return TRUE;
 731 }
 732
 733 static LRESULT on_kbd_event(NSTC2Impl *This, UINT uMsg, WPARAM wParam, LPARAM lParam)
 734 {
 735     IShellItem *psi;
 736     HTREEITEM hitem;
 737     TRACE("%p : %d, %lx, %lx\n", This, uMsg, wParam, lParam);
 738
 739     /* Handled by the client? */
 740     if(FAILED(events_OnKeyboardInput(This, uMsg, wParam, lParam)))
 741         return TRUE;
 742
 743     if(uMsg == WM_KEYDOWN)
 744     {
 745         switch(wParam)
 746         {
 747         case VK_DELETE:
 748             psi = get_selected_shellitem(This);
 749             FIXME("Deletion of file requested (shellitem: %p).\n", psi);
 750             return TRUE;
 751
 752         case VK_F2:
 753             hitem = get_selected_treeitem(This);
 754             SendMessageW(This->hwnd_tv, TVM_EDITLABELW, 0, (LPARAM)hitem);
 755             return TRUE;
 756         }
 757     }
 758
 759     /* Let the TreeView handle the key */
 760     return FALSE;
 761 }
 762
 763 static LRESULT CALLBACK tv_wndproc(HWND hWnd, UINT uMessage, WPARAM wParam, LPARAM lParam)
 764 {
 765     NSTC2Impl *This = (NSTC2Impl*)GetPropW(hWnd, thispropW);
 766
 767     switch(uMessage) {
 768     case WM_KEYDOWN:
 769     case WM_KEYUP:
 770     case WM_CHAR:
 771     case WM_SYSKEYDOWN:
 772     case WM_SYSKEYUP:
 773     case WM_SYSCHAR:
 774         if(on_kbd_event(This, uMessage, wParam, lParam))
 775             return TRUE;
 776         break;
 777
 778     case WM_MBUTTONUP:        return on_wm_mbuttonup(This, wParam, lParam);
 779     }
 780
 781     /* Pass the message on to the treeview */
 782     return CallWindowProcW(This->tv_oldwndproc, hWnd, uMessage, wParam, lParam);
 783 }
 784
 785 static LRESULT CALLBACK NSTC2_WndProc(HWND hWnd, UINT uMessage,
 786                                       WPARAM wParam, LPARAM lParam)
 787 {
 788     NSTC2Impl *This = (NSTC2Impl*)GetWindowLongPtrW(hWnd, GWLP_USERDATA);
 789     NMHDR *nmhdr;
 790
 791     switch(uMessage)
 792     {
 793     case WM_NCCREATE:         return create_namespacetree(hWnd, (CREATESTRUCTW*)lParam);
 794     case WM_SIZE:             return resize_namespacetree(This);
 795     case WM_DESTROY:          return destroy_namespacetree(This);
 796     case WM_NOTIFY:
 797         nmhdr = (NMHDR*)lParam;
 798         switch(nmhdr->code)
 799         {
 800         case NM_CLICK:            return on_nm_click(This, nmhdr);
 801         case TVN_DELETEITEMW:     return on_tvn_deleteitemw(This, lParam);
 802         case TVN_GETDISPINFOW:    return on_tvn_getdispinfow(This, lParam);
 803         case TVN_ITEMEXPANDINGW:  return on_tvn_itemexpandingw(This, lParam);
 804         case TVN_ITEMEXPANDEDW:   return on_tvn_itemexpandedw(This, lParam);
 805         case TVN_SELCHANGEDW:     return on_tvn_selchangedw(This, lParam);
 806         default:                  break;
 807         }
 808         break;
 809     default:                  return DefWindowProcW(hWnd, uMessage, wParam, lParam);
 810     }
 811     return 0;
 812 }
 813
 814 /**************************************************************************
 815  * INameSpaceTreeControl2 Implementation
 816  */
 817 static HRESULT WINAPI NSTC2_fnQueryInterface(INameSpaceTreeControl2* iface,
 818                                              REFIID riid,
 819                                              void **ppvObject)
 820 {
 821     NSTC2Impl *This = impl_from_INameSpaceTreeControl2(iface);
 822     TRACE("%p (%s, %p)\n", This, debugstr_guid(riid), ppvObject);
 823
 824     *ppvObject = NULL;
 825     if(IsEqualIID(riid, &IID_INameSpaceTreeControl2) ||
 826        IsEqualIID(riid, &IID_INameSpaceTreeControl) ||
 827        IsEqualIID(riid, &IID_IUnknown))
 828     {
 829         *ppvObject = &This->INameSpaceTreeControl2_iface;
 830     }
 831     else if(IsEqualIID(riid, &IID_IOleWindow))
 832     {
 833         *ppvObject = &This->IOleWindow_iface;
 834     }
 835
 836     if(*ppvObject)
 837     {
 838         IUnknown_AddRef((IUnknown*)*ppvObject);
 839         return S_OK;
 840     }
 841
 842     return E_NOINTERFACE;
 843 }
 844
 845 static ULONG WINAPI NSTC2_fnAddRef(INameSpaceTreeControl2* iface)
 846 {
 847     NSTC2Impl *This = impl_from_INameSpaceTreeControl2(iface);
 848     LONG ref = InterlockedIncrement(&This->ref);
 849
 850     TRACE("%p - ref %d\n", This, ref);
 851
 852     return ref;
 853 }
 854
 855 static ULONG WINAPI NSTC2_fnRelease(INameSpaceTreeControl2* iface)
 856 {
 857     NSTC2Impl *This = impl_from_INameSpaceTreeControl2(iface);
 858     LONG ref = InterlockedDecrement(&This->ref);
 859
 860     TRACE("%p - ref: %d\n", This, ref);
 861
 862     if(!ref)
 863     {
 864         TRACE("Freeing.\n");
 865         heap_free(This);
 866         EFRAME_UnlockModule();
 867     }
 868
 869     return ref;
 870 }
 871
 872 static HRESULT WINAPI NSTC2_fnInitialize(INameSpaceTreeControl2* iface,
 873                                          HWND hwndParent,
 874                                          RECT *prc,
 875                                          NSTCSTYLE nstcsFlags)
 876 {
 877     NSTC2Impl *This = impl_from_INameSpaceTreeControl2(iface);
 878     WNDCLASSW wc;
 879     DWORD window_style, window_ex_style;
 880     INITCOMMONCONTROLSEX icex;
 881     RECT rc;
 882     static const WCHAR NSTC2_CLASS_NAME[] =
 883         {'N','a','m','e','s','p','a','c','e','T','r','e','e',
 884          'C','o','n','t','r','o','l',0};
 885
 886     TRACE("%p (%p, %p, %x)\n", This, hwndParent, prc, nstcsFlags);
 887
 888     if(nstcsFlags & unsupported_styles)
 889         FIXME("0x%08x contains the unsupported style(s) 0x%08x\n",
 890               nstcsFlags, nstcsFlags & unsupported_styles);
 891
 892     This->style = nstcsFlags;
 893
 894     icex.dwSize = sizeof( icex );
 895     icex.dwICC = ICC_TREEVIEW_CLASSES;
 896     InitCommonControlsEx( &icex );
 897
 898     if(!GetClassInfoW(explorerframe_hinstance, NSTC2_CLASS_NAME, &wc))
 899     {
 900         wc.style            = CS_HREDRAW | CS_VREDRAW;
 901         wc.lpfnWndProc      = NSTC2_WndProc;
 902         wc.cbClsExtra       = 0;
 903         wc.cbWndExtra       = 0;
 904         wc.hInstance        = explorerframe_hinstance;
 905         wc.hIcon            = 0;
 906         wc.hCursor          = LoadCursorW(0, (LPWSTR)IDC_ARROW);
 907         wc.hbrBackground    = (HBRUSH)(COLOR_WINDOW + 1);
 908         wc.lpszMenuName     = NULL;
 909         wc.lpszClassName    = NSTC2_CLASS_NAME;
 910
 911         if (!RegisterClassW(&wc)) return E_FAIL;
 912     }
 913
 914     /* NSTCS_TABSTOP and NSTCS_BORDER affects the host window */
 915     window_style = WS_VISIBLE | WS_CHILD | WS_CLIPCHILDREN | WS_CLIPSIBLINGS |
 916         (nstcsFlags & NSTCS_BORDER ? WS_BORDER : 0);
 917     window_ex_style = nstcsFlags & NSTCS_TABSTOP ? WS_EX_CONTROLPARENT : 0;
 918
 919     if(prc)
 920         rc = *prc;
 921     else
 922         SetRectEmpty(&rc);
 923
 924     This->hwnd_main = CreateWindowExW(window_ex_style, NSTC2_CLASS_NAME, NULL, window_style,
 925                                       rc.left, rc.top, rc.right - rc.left, rc.bottom - rc.top,
 926                                       hwndParent, 0, explorerframe_hinstance, This);
 927
 928     if(!This->hwnd_main)
 929     {
 930         ERR("Failed to create the window.\n");
 931         return HRESULT_FROM_WIN32(GetLastError());
 932     }
 933
 934     return S_OK;
 935 }
 936
 937 static HRESULT WINAPI NSTC2_fnTreeAdvise(INameSpaceTreeControl2* iface, IUnknown *handler, DWORD *cookie)
 938 {
 939     NSTC2Impl *This = impl_from_INameSpaceTreeControl2(iface);
 940
 941     TRACE("%p (%p, %p)\n", This, handler, cookie);
 942
 943     *cookie = 0;
 944
 945     /* Only one client supported */
 946     if (This->events || This->customdraw || This->dragdrop)
 947         return E_FAIL;
 948
 949     /* FIXME: request INameSpaceTreeAccessible too */
 950     IUnknown_QueryInterface(handler, &IID_INameSpaceTreeControlEvents, (void**)&This->events);
 951     IUnknown_QueryInterface(handler, &IID_INameSpaceTreeControlCustomDraw, (void**)&This->customdraw);
 952     IUnknown_QueryInterface(handler, &IID_INameSpaceTreeControlDropHandler, (void**)&This->dragdrop);
 953
 954     if (This->events || This->customdraw || This->dragdrop)
 955         *cookie = 1;
 956
 957     return *cookie ? S_OK : E_FAIL;
 958 }
 959
 960 static HRESULT WINAPI NSTC2_fnTreeUnadvise(INameSpaceTreeControl2* iface, DWORD cookie)
 961 {
 962     NSTC2Impl *This = impl_from_INameSpaceTreeControl2(iface);
 963
 964     TRACE("%p (%x)\n", This, cookie);
 965
 966     /* The cookie is ignored. */
 967
 968     if (This->events)
 969     {
 970         INameSpaceTreeControlEvents_Release(This->events);
 971         This->events = NULL;
 972     }
 973
 974     if (This->customdraw)
 975     {
 976         INameSpaceTreeControlCustomDraw_Release(This->customdraw);
 977         This->customdraw = NULL;
 978     }
 979
 980     if (This->dragdrop)
 981     {
 982         INameSpaceTreeControlDropHandler_Release(This->dragdrop);
 983         This->dragdrop = NULL;
 984     }
 985
 986     return S_OK;
 987 }
 988
 989 static HRESULT WINAPI NSTC2_fnInsertRoot(INameSpaceTreeControl2* iface,
 990                                          int iIndex,
 991                                          IShellItem *psiRoot,
 992                                          SHCONTF grfEnumFlags,
 993                                          NSTCROOTSTYLE grfRootStyle,
 994                                          IShellItemFilter *pif)
 995 {
 996     NSTC2Impl *This = impl_from_INameSpaceTreeControl2(iface);
 997     nstc_root *new_root;
 998     struct list *add_after_entry;
 999     HTREEITEM add_after_hitem;
1000     int i;
1001
1002     TRACE("%p, %d, %p, %x, %x, %p\n", This, iIndex, psiRoot, grfEnumFlags, grfRootStyle, pif);
1003
1004     new_root = heap_alloc(sizeof(*new_root));
1005     if(!new_root)
1006         return E_OUTOFMEMORY;
1007
1008     new_root->psi = psiRoot;
1009     new_root->enum_flags = grfEnumFlags;
1010     new_root->root_style = grfRootStyle;
1011     new_root->pif = pif;
1012
1013     /* We want to keep the roots in the internal list and in the
1014      * treeview in the same order. */
1015     add_after_entry = &This->roots;
1016     for(i = 0; i < max(0, iIndex) && list_next(&This->roots, add_after_entry); i++)
1017         add_after_entry = list_next(&This->roots, add_after_entry);
1018
1019     if(add_after_entry == &This->roots)
1020         add_after_hitem = TVI_FIRST;
1021     else
1022         add_after_hitem = LIST_ENTRY(add_after_entry, nstc_root, entry)->htreeitem;
1023
1024     new_root->htreeitem = insert_shellitem(This, psiRoot, TVI_ROOT, add_after_hitem);
1025     if(!new_root->htreeitem)
1026     {
1027         WARN("Failed to add the root.\n");
1028         heap_free(new_root);
1029         return E_FAIL;
1030     }
1031
1032     list_add_after(add_after_entry, &new_root->entry);
1033     events_OnItemAdded(This, psiRoot, TRUE);
1034
1035     if(grfRootStyle & NSTCRS_HIDDEN)
1036     {
1037         TVITEMEXW tvi;
1038         tvi.mask = TVIF_STATEEX;
1039         tvi.uStateEx = TVIS_EX_FLAT;
1040         tvi.hItem = new_root->htreeitem;
1041
1042         SendMessageW(This->hwnd_tv, TVM_SETITEMW, 0, (LPARAM)&tvi);
1043     }
1044
1045     if(grfRootStyle & NSTCRS_EXPANDED)
1046         SendMessageW(This->hwnd_tv, TVM_EXPAND, TVE_EXPAND,
1047                      (LPARAM)new_root->htreeitem);
1048
1049     return S_OK;
1050 }
1051
1052 static HRESULT WINAPI NSTC2_fnAppendRoot(INameSpaceTreeControl2* iface,
1053                                          IShellItem *psiRoot,
1054                                          SHCONTF grfEnumFlags,
1055                                          NSTCROOTSTYLE grfRootStyle,
1056                                          IShellItemFilter *pif)
1057 {
1058     NSTC2Impl *This = impl_from_INameSpaceTreeControl2(iface);
1059     UINT root_count;
1060     TRACE("%p, %p, %x, %x, %p\n",
1061           This, psiRoot, grfEnumFlags, grfRootStyle, pif);
1062
1063     root_count = list_count(&This->roots);
1064
1065     return INameSpaceTreeControl2_InsertRoot(iface, root_count, psiRoot, grfEnumFlags, grfRootStyle, pif);
1066 }
1067
1068 static HRESULT WINAPI NSTC2_fnRemoveRoot(INameSpaceTreeControl2* iface,
1069                                          IShellItem *psiRoot)
1070 {
1071     NSTC2Impl *This = impl_from_INameSpaceTreeControl2(iface);
1072     nstc_root *cursor, *root = NULL;
1073     TRACE("%p (%p)\n", This, psiRoot);
1074
1075     if(!psiRoot)
1076         return E_NOINTERFACE;
1077
1078     LIST_FOR_EACH_ENTRY(cursor, &This->roots, nstc_root, entry)
1079     {
1080         HRESULT hr;
1081         int order;
1082         hr = IShellItem_Compare(psiRoot, cursor->psi, SICHINT_DISPLAY, &order);
1083         if(hr == S_OK)
1084         {
1085             root = cursor;
1086             break;
1087         }
1088     }
1089
1090     TRACE("root %p\n", root);
1091     if(root)
1092     {
1093         events_OnItemDeleted(This, root->psi, TRUE);
1094         SendMessageW(This->hwnd_tv, TVM_DELETEITEM, 0, (LPARAM)root->htreeitem);
1095         list_remove(&root->entry);
1096         heap_free(root);
1097         return S_OK;
1098     }
1099     else
1100     {
1101         WARN("No matching root found.\n");
1102         return E_FAIL;
1103     }
1104 }
1105
1106 static HRESULT WINAPI NSTC2_fnRemoveAllRoots(INameSpaceTreeControl2* iface)
1107 {
1108     NSTC2Impl *This = impl_from_INameSpaceTreeControl2(iface);
1109     nstc_root *cur1, *cur2;
1110
1111     TRACE("%p\n", This);
1112
1113     if (list_empty(&This->roots))
1114         return E_INVALIDARG;
1115
1116     LIST_FOR_EACH_ENTRY_SAFE(cur1, cur2, &This->roots, nstc_root, entry)
1117         INameSpaceTreeControl2_RemoveRoot(iface, cur1->psi);
1118
1119     return S_OK;
1120 }
1121
1122 static HRESULT WINAPI NSTC2_fnGetRootItems(INameSpaceTreeControl2* iface,
1123                                            IShellItemArray **ppsiaRootItems)
1124 {
1125     NSTC2Impl *This = impl_from_INameSpaceTreeControl2(iface);
1126     IShellFolder *psf;
1127     LPITEMIDLIST *array;
1128     nstc_root *root;
1129     UINT count, i;
1130     HRESULT hr;
1131     TRACE("%p (%p)\n", This, ppsiaRootItems);
1132
1133     count = list_count(&This->roots);
1134
1135     if(!count)
1136         return E_INVALIDARG;
1137
1138     array = heap_alloc(sizeof(LPITEMIDLIST)*count);
1139
1140     i = 0;
1141     LIST_FOR_EACH_ENTRY(root, &This->roots, nstc_root, entry)
1142         SHGetIDListFromObject((IUnknown*)root->psi, &array[i++]);
1143
1144     SHGetDesktopFolder(&psf);
1145     hr = SHCreateShellItemArray(NULL, psf, count, (PCUITEMID_CHILD_ARRAY)array,
1146                                 ppsiaRootItems);
1147     IShellFolder_Release(psf);
1148
1149     for(i = 0; i < count; i++)
1150         ILFree(array[i]);
1151
1152     heap_free(array);
1153
1154     return hr;
1155 }
1156
1157 static HRESULT WINAPI NSTC2_fnSetItemState(INameSpaceTreeControl2* iface,
1158                                            IShellItem *psi,
1159                                            NSTCITEMSTATE nstcisMask,
1160                                            NSTCITEMSTATE nstcisFlags)
1161 {
1162     NSTC2Impl *This = impl_from_INameSpaceTreeControl2(iface);
1163     TVITEMEXW tvi;
1164     HTREEITEM hitem;
1165
1166     TRACE("%p (%p, %x, %x)\n", This, psi, nstcisMask, nstcisFlags);
1167
1168     hitem = treeitem_from_shellitem(This, psi);
1169     if(!hitem) return E_INVALIDARG;
1170
1171     /* Passing both NSTCIS_SELECTED and NSTCIS_SELECTEDNOEXPAND results
1172        in two TVM_SETITEMW's */
1173     if((nstcisMask&nstcisFlags) & NSTCIS_SELECTED)
1174     {
1175         SendMessageW(This->hwnd_tv, TVM_SELECTITEM, TVGN_CARET, (LPARAM)hitem);
1176         SendMessageW(This->hwnd_tv, TVM_ENSUREVISIBLE, 0, (LPARAM)hitem);
1177     }
1178     if((nstcisMask&nstcisFlags) & NSTCIS_SELECTEDNOEXPAND)
1179     {
1180         SendMessageW(This->hwnd_tv, TVM_SELECTITEM, TVGN_CARET|TVSI_NOSINGLEEXPAND, (LPARAM)hitem);
1181     }
1182
1183     /* If NSTCIS_EXPANDED is among the flags, the mask is ignored. */
1184     if((nstcisMask|nstcisFlags) & NSTCIS_EXPANDED)
1185     {
1186         WPARAM arg = nstcisFlags&NSTCIS_EXPANDED ? TVE_EXPAND:TVE_COLLAPSE;
1187         SendMessageW(This->hwnd_tv, TVM_EXPAND, arg, (LPARAM)hitem);
1188     }
1189
1190     if(nstcisMask & NSTCIS_DISABLED)
1191         tvi.mask = TVIF_STATE | TVIF_STATEEX;
1192     else if( ((nstcisMask^nstcisFlags) & (NSTCIS_SELECTED|NSTCIS_EXPANDED|NSTCIS_SELECTEDNOEXPAND)) ||
1193              ((nstcisMask|nstcisFlags) & NSTCIS_BOLD) ||
1194              (nstcisFlags & NSTCIS_DISABLED) )
1195         tvi.mask = TVIF_STATE;
1196     else
1197         tvi.mask = 0;
1198
1199     if(tvi.mask)
1200     {
1201         tvi.stateMask = tvi.state = 0;
1202         tvi.stateMask |= ((nstcisFlags^nstcisMask)&NSTCIS_SELECTED) ? TVIS_SELECTED : 0;
1203         tvi.stateMask |= (nstcisMask|nstcisFlags)&NSTCIS_BOLD ? TVIS_BOLD:0;
1204         tvi.state     |= (nstcisMask&nstcisFlags)&NSTCIS_BOLD ? TVIS_BOLD:0;
1205
1206         if((nstcisMask&NSTCIS_EXPANDED)^(nstcisFlags&NSTCIS_EXPANDED))
1207         {
1208             tvi.stateMask = 0;
1209         }
1210
1211         tvi.uStateEx = (nstcisFlags&nstcisMask)&NSTCIS_DISABLED?TVIS_EX_DISABLED:0;
1212         tvi.hItem = hitem;
1213
1214         SendMessageW(This->hwnd_tv, TVM_SETITEMW, 0, (LPARAM)&tvi);
1215     }
1216
1217     return S_OK;
1218 }
1219
1220 static HRESULT WINAPI NSTC2_fnGetItemState(INameSpaceTreeControl2* iface,
1221                                            IShellItem *psi,
1222                                            NSTCITEMSTATE nstcisMask,
1223                                            NSTCITEMSTATE *pnstcisFlags)
1224 {
1225     NSTC2Impl *This = impl_from_INameSpaceTreeControl2(iface);
1226     HTREEITEM hitem;
1227     TVITEMEXW tvi;
1228     TRACE("%p (%p, %x, %p)\n", This, psi, nstcisMask, pnstcisFlags);
1229
1230     hitem = treeitem_from_shellitem(This, psi);
1231     if(!hitem)
1232         return E_INVALIDARG;
1233
1234     *pnstcisFlags = 0;
1235
1236     tvi.hItem = hitem;
1237     tvi.mask = TVIF_STATE;
1238     tvi.stateMask = TVIS_SELECTED|TVIS_EXPANDED|TVIS_BOLD;
1239
1240     if(nstcisMask & NSTCIS_DISABLED)
1241         tvi.mask |= TVIF_STATEEX;
1242
1243     SendMessageW(This->hwnd_tv, TVM_GETITEMW, 0, (LPARAM)&tvi);
1244     *pnstcisFlags |= (tvi.state & TVIS_SELECTED)?NSTCIS_SELECTED:0;
1245     *pnstcisFlags |= (tvi.state & TVIS_EXPANDED)?NSTCIS_EXPANDED:0;
1246     *pnstcisFlags |= (tvi.state & TVIS_BOLD)?NSTCIS_BOLD:0;
1247     *pnstcisFlags |= (tvi.uStateEx & TVIS_EX_DISABLED)?NSTCIS_DISABLED:0;
1248
1249     *pnstcisFlags &= nstcisMask;
1250
1251     return S_OK;
1252 }
1253
1254 static HRESULT WINAPI NSTC2_fnGetSelectedItems(INameSpaceTreeControl2* iface,
1255                                                IShellItemArray **psiaItems)
1256 {
1257     NSTC2Impl *This = impl_from_INameSpaceTreeControl2(iface);
1258     IShellItem *psiselected;
1259
1260     TRACE("%p (%p)\n", This, psiaItems);
1261
1262     psiselected = get_selected_shellitem(This);
1263     if(!psiselected)
1264     {
1265         *psiaItems = NULL;
1266         return E_FAIL;
1267     }
1268
1269     return SHCreateShellItemArrayFromShellItem(psiselected, &IID_IShellItemArray,
1270                                              (void**)psiaItems);
1271 }
1272
1273 static HRESULT WINAPI NSTC2_fnGetItemCustomState(INameSpaceTreeControl2* iface,
1274                                                  IShellItem *psi,
1275                                                  int *piStateNumber)
1276 {
1277     NSTC2Impl *This = impl_from_INameSpaceTreeControl2(iface);
1278     FIXME("stub, %p (%p, %p)\n", This, psi, piStateNumber);
1279     return E_NOTIMPL;
1280 }
1281
1282 static HRESULT WINAPI NSTC2_fnSetItemCustomState(INameSpaceTreeControl2* iface,
1283                                                  IShellItem *psi,
1284                                                  int iStateNumber)
1285 {
1286     NSTC2Impl *This = impl_from_INameSpaceTreeControl2(iface);
1287     FIXME("stub, %p (%p, %d)\n", This, psi, iStateNumber);
1288     return E_NOTIMPL;
1289 }
1290
1291 static HRESULT WINAPI NSTC2_fnEnsureItemVisible(INameSpaceTreeControl2* iface,
1292                                                 IShellItem *psi)
1293 {
1294     NSTC2Impl *This = impl_from_INameSpaceTreeControl2(iface);
1295     HTREEITEM hitem;
1296
1297     TRACE("%p (%p)\n", This, psi);
1298
1299     hitem = treeitem_from_shellitem(This, psi);
1300     if(hitem)
1301     {
1302         SendMessageW(This->hwnd_tv, TVM_ENSUREVISIBLE, 0, (WPARAM)hitem);
1303         return S_OK;
1304     }
1305
1306     return E_INVALIDARG;
1307 }
1308
1309 static HRESULT WINAPI NSTC2_fnSetTheme(INameSpaceTreeControl2* iface,
1310                                        LPCWSTR pszTheme)
1311 {
1312     NSTC2Impl *This = impl_from_INameSpaceTreeControl2(iface);
1313     FIXME("stub, %p (%p)\n", This, pszTheme);
1314     return E_NOTIMPL;
1315 }
1316
1317 static HRESULT WINAPI NSTC2_fnGetNextItem(INameSpaceTreeControl2* iface,
1318                                           IShellItem *psi,
1319                                           NSTCGNI nstcgi,
1320                                           IShellItem **ppsiNext)
1321 {
1322     NSTC2Impl *This = impl_from_INameSpaceTreeControl2(iface);
1323     HTREEITEM hitem, hnext;
1324     UINT tvgn;
1325     TRACE("%p (%p, %x, %p)\n", This, psi, nstcgi, ppsiNext);
1326
1327     if(!ppsiNext) return E_POINTER;
1328     if(!psi)      return E_FAIL;
1329
1330     *ppsiNext = NULL;
1331
1332     hitem = treeitem_from_shellitem(This, psi);
1333     if(!hitem)
1334         return E_INVALIDARG;
1335
1336     switch(nstcgi)
1337     {
1338     case NSTCGNI_NEXT:         tvgn = TVGN_NEXT; break;
1339     case NSTCGNI_NEXTVISIBLE:  tvgn = TVGN_NEXTVISIBLE; break;
1340     case NSTCGNI_PREV:         tvgn = TVGN_PREVIOUS; break;
1341     case NSTCGNI_PREVVISIBLE:  tvgn = TVGN_PREVIOUSVISIBLE; break;
1342     case NSTCGNI_PARENT:       tvgn = TVGN_PARENT; break;
1343     case NSTCGNI_CHILD:        tvgn = TVGN_CHILD; break;
1344     case NSTCGNI_FIRSTVISIBLE: tvgn = TVGN_FIRSTVISIBLE; break;
1345     case NSTCGNI_LASTVISIBLE:  tvgn = TVGN_LASTVISIBLE; break;
1346     default:
1347         FIXME("Unknown nstcgi value %d\n", nstcgi);
1348         return E_FAIL;
1349     }
1350
1351     hnext = (HTREEITEM)SendMessageW(This->hwnd_tv, TVM_GETNEXTITEM, tvgn, (WPARAM)hitem);
1352     if(hnext)
1353     {
1354         *ppsiNext = shellitem_from_treeitem(This, hnext);
1355         IShellItem_AddRef(*ppsiNext);
1356         return S_OK;
1357     }
1358
1359     return E_FAIL;
1360 }
1361
1362 static HRESULT WINAPI NSTC2_fnHitTest(INameSpaceTreeControl2* iface,
1363                                       POINT *ppt,
1364                                       IShellItem **ppsiOut)
1365 {
1366     NSTC2Impl *This = impl_from_INameSpaceTreeControl2(iface);
1367     HTREEITEM hitem;
1368     TRACE("%p (%p, %p)\n", This, ppsiOut, ppt);
1369
1370     if(!ppt || !ppsiOut)
1371         return E_POINTER;
1372
1373     *ppsiOut = NULL;
1374
1375     hitem = treeitem_from_point(This, ppt, NULL);
1376     if(hitem)
1377         *ppsiOut = shellitem_from_treeitem(This, hitem);
1378
1379     if(*ppsiOut)
1380     {
1381         IShellItem_AddRef(*ppsiOut);
1382         return S_OK;
1383     }
1384
1385     return S_FALSE;
1386 }
1387
1388 static HRESULT WINAPI NSTC2_fnGetItemRect(INameSpaceTreeControl2* iface,
1389                                           IShellItem *psi,
1390                                           RECT *prect)
1391 {
1392     NSTC2Impl *This = impl_from_INameSpaceTreeControl2(iface);
1393     HTREEITEM hitem;
1394     TRACE("%p (%p, %p)\n", This, psi, prect);
1395
1396     if(!psi || !prect)
1397         return E_POINTER;
1398
1399     hitem = treeitem_from_shellitem(This, psi);
1400     if(hitem)
1401     {
1402         *(HTREEITEM*)prect = hitem;
1403         if(SendMessageW(This->hwnd_tv, TVM_GETITEMRECT, FALSE, (LPARAM)prect))
1404         {
1405             MapWindowPoints(This->hwnd_tv, HWND_DESKTOP, (POINT*)prect, 2);
1406             return S_OK;
1407         }
1408     }
1409
1410     return E_INVALIDARG;
1411 }
1412
1413 static HRESULT WINAPI NSTC2_fnCollapseAll(INameSpaceTreeControl2* iface)
1414 {
1415     NSTC2Impl *This = impl_from_INameSpaceTreeControl2(iface);
1416     nstc_root *root;
1417     TRACE("%p\n", This);
1418
1419     LIST_FOR_EACH_ENTRY(root, &This->roots, nstc_root, entry)
1420         collapse_all(This, root->htreeitem);
1421
1422     return S_OK;
1423 }
1424
1425 static HRESULT WINAPI NSTC2_fnSetControlStyle(INameSpaceTreeControl2* iface,
1426                                               NSTCSTYLE nstcsMask,
1427                                               NSTCSTYLE nstcsStyle)
1428 {
1429     NSTC2Impl *This = impl_from_INameSpaceTreeControl2(iface);
1430     static const DWORD tv_style_flags =
1431         NSTCS_HASEXPANDOS | NSTCS_HASLINES | NSTCS_FULLROWSELECT |
1432         NSTCS_HORIZONTALSCROLL | NSTCS_ROOTHASEXPANDO |
1433         NSTCS_SHOWSELECTIONALWAYS | NSTCS_NOINFOTIP | NSTCS_EVENHEIGHT |
1434         NSTCS_DISABLEDRAGDROP | NSTCS_NOEDITLABELS | NSTCS_CHECKBOXES;
1435     static const DWORD host_style_flags = NSTCS_TABSTOP | NSTCS_BORDER;
1436     static const DWORD nstc_flags =
1437         NSTCS_SINGLECLICKEXPAND | NSTCS_NOREPLACEOPEN | NSTCS_NOORDERSTREAM |
1438         NSTCS_FAVORITESMODE | NSTCS_EMPTYTEXT | NSTCS_ALLOWJUNCTIONS |
1439         NSTCS_SHOWTABSBUTTON | NSTCS_SHOWDELETEBUTTON | NSTCS_SHOWREFRESHBUTTON;
1440     TRACE("%p (%x, %x)\n", This, nstcsMask, nstcsStyle);
1441
1442     /* Fail if there is an attempt to set an unknown style. */
1443     if(nstcsMask & ~(tv_style_flags | host_style_flags | nstc_flags))
1444         return E_FAIL;
1445
1446     if(nstcsMask & tv_style_flags)
1447     {
1448         DWORD new_style;
1449         treeview_style_from_nstcs(This, nstcsStyle, nstcsMask, &new_style);
1450         SetWindowLongPtrW(This->hwnd_tv, GWL_STYLE, new_style);
1451     }
1452
1453     /* Flags affecting the host window */
1454     if(nstcsMask & NSTCS_BORDER)
1455     {
1456         DWORD new_style = GetWindowLongPtrW(This->hwnd_main, GWL_STYLE);
1457         new_style &= ~WS_BORDER;
1458         new_style |= nstcsStyle & NSTCS_BORDER ? WS_BORDER : 0;
1459         SetWindowLongPtrW(This->hwnd_main, GWL_STYLE, new_style);
1460     }
1461     if(nstcsMask & NSTCS_TABSTOP)
1462     {
1463         DWORD new_style = GetWindowLongPtrW(This->hwnd_main, GWL_EXSTYLE);
1464         new_style &= ~WS_EX_CONTROLPARENT;
1465         new_style |= nstcsStyle & NSTCS_TABSTOP ? WS_EX_CONTROLPARENT : 0;
1466         SetWindowLongPtrW(This->hwnd_main, GWL_EXSTYLE, new_style);
1467     }
1468
1469     if((nstcsStyle & nstcsMask) & unsupported_styles)
1470         FIXME("mask & style (0x%08x) contains unsupported style(s): 0x%08x\n",
1471               (nstcsStyle & nstcsMask),
1472               (nstcsStyle & nstcsMask) & unsupported_styles);
1473
1474     This->style &= ~nstcsMask;
1475     This->style |= (nstcsStyle & nstcsMask);
1476
1477     return S_OK;
1478 }
1479
1480 static HRESULT WINAPI NSTC2_fnGetControlStyle(INameSpaceTreeControl2* iface,
1481                                               NSTCSTYLE nstcsMask,
1482                                               NSTCSTYLE *pnstcsStyle)
1483 {
1484     NSTC2Impl *This = impl_from_INameSpaceTreeControl2(iface);
1485     TRACE("%p (%x, %p)\n", This, nstcsMask, pnstcsStyle);
1486
1487     *pnstcsStyle = (This->style & nstcsMask);
1488
1489     return S_OK;
1490 }
1491
1492 static HRESULT WINAPI NSTC2_fnSetControlStyle2(INameSpaceTreeControl2* iface,
1493                                                NSTCSTYLE2 nstcsMask,
1494                                                NSTCSTYLE2 nstcsStyle)
1495 {
1496     NSTC2Impl *This = impl_from_INameSpaceTreeControl2(iface);
1497     TRACE("%p (%x, %x)\n", This, nstcsMask, nstcsStyle);
1498
1499     if((nstcsStyle & nstcsMask) & unsupported_styles2)
1500         FIXME("mask & style (0x%08x) contains unsupported style(s): 0x%08x\n",
1501               (nstcsStyle & nstcsMask),
1502               (nstcsStyle & nstcsMask) & unsupported_styles2);
1503
1504     This->style2 &= ~nstcsMask;
1505     This->style2 |= (nstcsStyle & nstcsMask);
1506
1507     return S_OK;
1508 }
1509
1510 static HRESULT WINAPI NSTC2_fnGetControlStyle2(INameSpaceTreeControl2* iface,
1511                                                NSTCSTYLE2 nstcsMask,
1512                                                NSTCSTYLE2 *pnstcsStyle)
1513 {
1514     NSTC2Impl *This = impl_from_INameSpaceTreeControl2(iface);
1515     TRACE("%p (%x, %p)\n", This, nstcsMask, pnstcsStyle);
1516
1517     *pnstcsStyle = (This->style2 & nstcsMask);
1518
1519     return S_OK;
1520 }
1521
1522 static const INameSpaceTreeControl2Vtbl vt_INameSpaceTreeControl2 = {
1523     NSTC2_fnQueryInterface,
1524     NSTC2_fnAddRef,
1525     NSTC2_fnRelease,
1526     NSTC2_fnInitialize,
1527     NSTC2_fnTreeAdvise,
1528     NSTC2_fnTreeUnadvise,
1529     NSTC2_fnAppendRoot,
1530     NSTC2_fnInsertRoot,
1531     NSTC2_fnRemoveRoot,
1532     NSTC2_fnRemoveAllRoots,
1533     NSTC2_fnGetRootItems,
1534     NSTC2_fnSetItemState,
1535     NSTC2_fnGetItemState,
1536     NSTC2_fnGetSelectedItems,
1537     NSTC2_fnGetItemCustomState,
1538     NSTC2_fnSetItemCustomState,
1539     NSTC2_fnEnsureItemVisible,
1540     NSTC2_fnSetTheme,
1541     NSTC2_fnGetNextItem,
1542     NSTC2_fnHitTest,
1543     NSTC2_fnGetItemRect,
1544     NSTC2_fnCollapseAll,
1545     NSTC2_fnSetControlStyle,
1546     NSTC2_fnGetControlStyle,
1547     NSTC2_fnSetControlStyle2,
1548     NSTC2_fnGetControlStyle2
1549 };
1550
1551 /**************************************************************************
1552  * IOleWindow Implementation
1553  */
1554
1555 static HRESULT WINAPI IOW_fnQueryInterface(IOleWindow *iface, REFIID riid, void **ppvObject)
1556 {
1557     NSTC2Impl *This = impl_from_IOleWindow(iface);
1558     return INameSpaceTreeControl2_QueryInterface(&This->INameSpaceTreeControl2_iface, riid, ppvObject);
1559 }
1560
1561 static ULONG WINAPI IOW_fnAddRef(IOleWindow *iface)
1562 {
1563     NSTC2Impl *This = impl_from_IOleWindow(iface);
1564     return INameSpaceTreeControl2_AddRef(&This->INameSpaceTreeControl2_iface);
1565 }
1566
1567 static ULONG WINAPI IOW_fnRelease(IOleWindow *iface)
1568 {
1569     NSTC2Impl *This = impl_from_IOleWindow(iface);
1570     return INameSpaceTreeControl2_Release(&This->INameSpaceTreeControl2_iface);
1571 }
1572
1573 static HRESULT WINAPI IOW_fnGetWindow(IOleWindow *iface, HWND *phwnd)
1574 {
1575     NSTC2Impl *This = impl_from_IOleWindow(iface);
1576     TRACE("%p (%p)\n", This, phwnd);
1577
1578     *phwnd = This->hwnd_main;
1579     return S_OK;
1580 }
1581
1582 static HRESULT WINAPI IOW_fnContextSensitiveHelp(IOleWindow *iface, BOOL fEnterMode)
1583 {
1584     NSTC2Impl *This = impl_from_IOleWindow(iface);
1585     TRACE("%p (%d)\n", This, fEnterMode);
1586
1587     /* Not implemented */
1588     return E_NOTIMPL;
1589 }
1590
1591 static const IOleWindowVtbl vt_IOleWindow = {
1592     IOW_fnQueryInterface,
1593     IOW_fnAddRef,
1594     IOW_fnRelease,
1595     IOW_fnGetWindow,
1596     IOW_fnContextSensitiveHelp
1597 };
1598
1599 HRESULT NamespaceTreeControl_Constructor(IUnknown *pUnkOuter, REFIID riid, void **ppv)
1600 {
1601     NSTC2Impl *nstc;
1602     HRESULT ret;
1603
1604     TRACE ("%p %s %p\n", pUnkOuter, debugstr_guid(riid), ppv);
1605
1606     if(!ppv)
1607         return E_POINTER;
1608     if(pUnkOuter)
1609         return CLASS_E_NOAGGREGATION;
1610
1611     EFRAME_LockModule();
1612
1613     nstc = heap_alloc_zero(sizeof(*nstc));
1614     if (!nstc)
1615         return E_OUTOFMEMORY;
1616
1617     nstc->ref = 1;
1618     nstc->INameSpaceTreeControl2_iface.lpVtbl = &vt_INameSpaceTreeControl2;
1619     nstc->IOleWindow_iface.lpVtbl = &vt_IOleWindow;
1620
1621     list_init(&nstc->roots);
1622
1623     ret = INameSpaceTreeControl2_QueryInterface(&nstc->INameSpaceTreeControl2_iface, riid, ppv);
1624     INameSpaceTreeControl2_Release(&nstc->INameSpaceTreeControl2_iface);
1625
1626     TRACE("--(%p)\n", ppv);
1627     return ret;
1628 }