dlls/winex11.drv/xdnd.c

   1 /*
   2  * XDND handler code
   3  *
   4  * Copyright 2003 Ulrich Czekalla
   5  * Copyright 2007 Damjan Jovanovic
   6  *
   7  * This library is free software; you can redistribute it and/or
   8  * modify it under the terms of the GNU Lesser General Public
   9  * License as published by the Free Software Foundation; either
  10  * version 2.1 of the License, or (at your option) any later version.
  11  *
  12  * This library is distributed in the hope that it will be useful,
  13  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  14  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  15  * Lesser General Public License for more details.
  16  *
  17  * You should have received a copy of the GNU Lesser General Public
  18  * License along with this library; if not, write to the Free Software
  19  * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
  20  */
  21
  22 #include "config.h"
  23 #include "wine/port.h"
  24
  25 #include <string.h>
  26 #ifdef HAVE_UNISTD_H
  27 # include <unistd.h>
  28 #endif
  29 #include <stdarg.h>
  30 #include <stdio.h>
  31
  32 #include "windef.h"
  33 #include "winbase.h"
  34 #include "wingdi.h"
  35 #include "winuser.h"
  36
  37 #define COBJMACROS
  38 #include "x11drv.h"
  39 #include "shlobj.h"  /* DROPFILES */
  40 #include "oleidl.h"
  41 #include "objidl.h"
  42
  43 #include "wine/unicode.h"
  44 #include "wine/debug.h"
  45 #include "wine/list.h"
  46
  47 WINE_DEFAULT_DEBUG_CHANNEL(xdnd);
  48
  49 /* Maximum wait time for selection notify */
  50 #define SELECTION_RETRIES 500  /* wait for .1 seconds */
  51 #define SELECTION_WAIT    1000 /* us */
  52
  53 typedef struct tagXDNDDATA
  54 {
  55     int cf_win;
  56     Atom cf_xdnd;
  57     void *data;
  58     unsigned int size;
  59     struct list entry;
  60 } XDNDDATA, *LPXDNDDATA;
  61
  62 static struct list xdndData = LIST_INIT(xdndData);
  63 static POINT XDNDxy = { 0, 0 };
  64 static IDataObject XDNDDataObject;
  65 static BOOL XDNDAccepted = FALSE;
  66 static DWORD XDNDDropEffect = DROPEFFECT_NONE;
  67 /* the last window the mouse was over */
  68 static HWND XDNDLastTargetWnd;
  69 /* might be a ancestor of XDNDLastTargetWnd */
  70 static HWND XDNDLastDropTargetWnd;
  71
  72 static void X11DRV_XDND_InsertXDNDData(int property, int format, void* data, unsigned int len);
  73 static int X11DRV_XDND_DeconstructTextURIList(int property, void* data, int len);
  74 static int X11DRV_XDND_DeconstructTextPlain(int property, void* data, int len);
  75 static int X11DRV_XDND_DeconstructTextHTML(int property, void* data, int len);
  76 static int X11DRV_XDND_MapFormat(unsigned int property, unsigned char *data, int len);
  77 static void X11DRV_XDND_ResolveProperty(Display *display, Window xwin, Time tm,
  78     Atom *types, unsigned long *count);
  79 static void X11DRV_XDND_SendDropFiles(HWND hwnd);
  80 static void X11DRV_XDND_FreeDragDropOp(void);
  81 static unsigned int X11DRV_XDND_UnixToDos(char** lpdest, char* lpsrc, int len);
  82 static WCHAR* X11DRV_XDND_URIToDOS(char *encodedURI);
  83
  84 static CRITICAL_SECTION xdnd_cs;
  85 static CRITICAL_SECTION_DEBUG critsect_debug =
  86 {
  87     0, 0, &xdnd_cs,
  88     { &critsect_debug.ProcessLocksList, &critsect_debug.ProcessLocksList },
  89       0, 0, { (DWORD_PTR)(__FILE__ ": xdnd_cs") }
  90 };
  91 static CRITICAL_SECTION xdnd_cs = { &critsect_debug, -1, 0, 0, 0, 0 };
  92
  93
  94 /* Based on functions in dlls/ole32/ole2.c */
  95 static HANDLE get_droptarget_local_handle(HWND hwnd)
  96 {
  97     static const WCHAR prop_marshalleddroptarget[] =
  98         {'W','i','n','e','M','a','r','s','h','a','l','l','e','d','D','r','o','p','T','a','r','g','e','t',0};
  99     HANDLE handle;
 100     HANDLE local_handle = 0;
 101
 102     handle = GetPropW(hwnd, prop_marshalleddroptarget);
 103     if (handle)
 104     {
 105         DWORD pid;
 106         HANDLE process;
 107
 108         GetWindowThreadProcessId(hwnd, &pid);
 109         process = OpenProcess(PROCESS_DUP_HANDLE, FALSE, pid);
 110         if (process)
 111         {
 112             DuplicateHandle(process, handle, GetCurrentProcess(), &local_handle, 0, FALSE, DUPLICATE_SAME_ACCESS);
 113             CloseHandle(process);
 114         }
 115     }
 116     return local_handle;
 117 }
 118
 119 static HRESULT create_stream_from_map(HANDLE map, IStream **stream)
 120 {
 121     HRESULT hr = E_OUTOFMEMORY;
 122     HGLOBAL hmem;
 123     void *data;
 124     MEMORY_BASIC_INFORMATION info;
 125
 126     data = MapViewOfFile(map, FILE_MAP_READ, 0, 0, 0);
 127     if(!data) return hr;
 128
 129     VirtualQuery(data, &info, sizeof(info));
 130     TRACE("size %d\n", (int)info.RegionSize);
 131
 132     hmem = GlobalAlloc(GMEM_MOVEABLE, info.RegionSize);
 133     if(hmem)
 134     {
 135         memcpy(GlobalLock(hmem), data, info.RegionSize);
 136         GlobalUnlock(hmem);
 137         hr = CreateStreamOnHGlobal(hmem, TRUE, stream);
 138     }
 139     UnmapViewOfFile(data);
 140     return hr;
 141 }
 142
 143 static IDropTarget* get_droptarget_pointer(HWND hwnd)
 144 {
 145     IDropTarget *droptarget = NULL;
 146     HANDLE map;
 147     IStream *stream;
 148
 149     map = get_droptarget_local_handle(hwnd);
 150     if(!map) return NULL;
 151
 152     if(SUCCEEDED(create_stream_from_map(map, &stream)))
 153     {
 154         CoUnmarshalInterface(stream, &IID_IDropTarget, (void**)&droptarget);
 155         IStream_Release(stream);
 156     }
 157     CloseHandle(map);
 158     return droptarget;
 159 }
 160
 161 /**************************************************************************
 162  * X11DRV_XDND_XdndActionToDROPEFFECT
 163  */
 164 static DWORD X11DRV_XDND_XdndActionToDROPEFFECT(long action)
 165 {
 166     /* In Windows, nothing but the given effects is allowed.
 167      * In X the given action is just a hint, and you can always
 168      * XdndActionCopy and XdndActionPrivate, so be more permissive. */
 169     if (action == x11drv_atom(XdndActionCopy))
 170         return DROPEFFECT_COPY;
 171     else if (action == x11drv_atom(XdndActionMove))
 172         return DROPEFFECT_MOVE | DROPEFFECT_COPY;
 173     else if (action == x11drv_atom(XdndActionLink))
 174         return DROPEFFECT_LINK | DROPEFFECT_COPY;
 175     else if (action == x11drv_atom(XdndActionAsk))
 176         /* FIXME: should we somehow ask the user what to do here? */
 177         return DROPEFFECT_COPY | DROPEFFECT_MOVE | DROPEFFECT_LINK;
 178     FIXME("unknown action %ld, assuming DROPEFFECT_COPY\n", action);
 179     return DROPEFFECT_COPY;
 180 }
 181
 182 /**************************************************************************
 183  * X11DRV_XDND_DROPEFFECTToXdndAction
 184  */
 185 static long X11DRV_XDND_DROPEFFECTToXdndAction(DWORD effect)
 186 {
 187     if (effect == DROPEFFECT_COPY)
 188         return x11drv_atom(XdndActionCopy);
 189     else if (effect == DROPEFFECT_MOVE)
 190         return x11drv_atom(XdndActionMove);
 191     else if (effect == DROPEFFECT_LINK)
 192         return x11drv_atom(XdndActionLink);
 193     FIXME("unknown drop effect %u, assuming XdndActionCopy\n", effect);
 194     return x11drv_atom(XdndActionCopy);
 195 }
 196
 197 /**************************************************************************
 198  * X11DRV_XDND_EnterEvent
 199  *
 200  * Handle an XdndEnter event.
 201  */
 202 void X11DRV_XDND_EnterEvent( HWND hWnd, XClientMessageEvent *event )
 203 {
 204     int version;
 205     Atom *xdndtypes;
 206     unsigned long count = 0;
 207
 208     version = (event->data.l[1] & 0xFF000000) >> 24;
 209     TRACE("ver(%d) check-XdndTypeList(%ld) data=%ld,%ld,%ld,%ld,%ld\n",
 210           version, (event->data.l[1] & 1),
 211           event->data.l[0], event->data.l[1], event->data.l[2],
 212           event->data.l[3], event->data.l[4]);
 213
 214     if (version > WINE_XDND_VERSION)
 215     {
 216         TRACE("Ignores unsupported version\n");
 217         return;
 218     }
 219
 220     XDNDAccepted = FALSE;
 221
 222     /* If the source supports more than 3 data types we retrieve
 223      * the entire list. */
 224     if (event->data.l[1] & 1)
 225     {
 226         Atom acttype;
 227         int actfmt;
 228         unsigned long bytesret;
 229
 230         /* Request supported formats from source window */
 231         wine_tsx11_lock();
 232         XGetWindowProperty(event->display, event->data.l[0], x11drv_atom(XdndTypeList),
 233                            0, 65535, FALSE, AnyPropertyType, &acttype, &actfmt, &count,
 234                            &bytesret, (unsigned char**)&xdndtypes);
 235         wine_tsx11_unlock();
 236     }
 237     else
 238     {
 239         count = 3;
 240         xdndtypes = (Atom*) &event->data.l[2];
 241     }
 242
 243     if (TRACE_ON(xdnd))
 244     {
 245         unsigned int i = 0;
 246
 247         wine_tsx11_lock();
 248         for (; i < count; i++)
 249         {
 250             if (xdndtypes[i] != 0)
 251             {
 252                 char * pn = XGetAtomName(event->display, xdndtypes[i]);
 253                 TRACE("XDNDEnterAtom %ld: %s\n", xdndtypes[i], pn);
 254                 XFree(pn);
 255             }
 256         }
 257         wine_tsx11_unlock();
 258     }
 259
 260     /* Do a one-time data read and cache results */
 261     X11DRV_XDND_ResolveProperty(event->display, event->window,
 262                                 event->data.l[1], xdndtypes, &count);
 263
 264     if (event->data.l[1] & 1)
 265         XFree(xdndtypes);
 266 }
 267
 268 /**************************************************************************
 269  * X11DRV_XDND_PositionEvent
 270  *
 271  * Handle an XdndPosition event.
 272  */
 273 void X11DRV_XDND_PositionEvent( HWND hWnd, XClientMessageEvent *event )
 274 {
 275     XClientMessageEvent e;
 276     int accept = 0; /* Assume we're not accepting */
 277     IDropTarget *dropTarget = NULL;
 278     DWORD effect;
 279     POINTL pointl;
 280     HWND targetWindow;
 281     HRESULT hr;
 282
 283     XDNDxy.x = event->data.l[2] >> 16;
 284     XDNDxy.y = event->data.l[2] & 0xFFFF;
 285     targetWindow = WindowFromPoint(XDNDxy);
 286
 287     pointl.x = XDNDxy.x;
 288     pointl.y = XDNDxy.y;
 289     effect = X11DRV_XDND_XdndActionToDROPEFFECT(event->data.l[4]);
 290
 291     if (!XDNDAccepted || XDNDLastTargetWnd != targetWindow)
 292     {
 293         /* Notify OLE of DragEnter. Result determines if we accept */
 294         HWND dropTargetWindow;
 295
 296         if (XDNDLastDropTargetWnd)
 297         {
 298             dropTarget = get_droptarget_pointer(XDNDLastDropTargetWnd);
 299             if (dropTarget)
 300             {
 301                 hr = IDropTarget_DragLeave(dropTarget);
 302                 if (FAILED(hr))
 303                     WARN("IDropTarget_DragLeave failed, error 0x%08X\n", hr);
 304                 IDropTarget_Release(dropTarget);
 305             }
 306         }
 307         dropTargetWindow = targetWindow;
 308         do
 309         {
 310             dropTarget = get_droptarget_pointer(dropTargetWindow);
 311         } while (dropTarget == NULL && (dropTargetWindow = GetParent(dropTargetWindow)) != NULL);
 312         XDNDLastTargetWnd = targetWindow;
 313         XDNDLastDropTargetWnd = dropTargetWindow;
 314         if (dropTarget)
 315         {
 316             hr = IDropTarget_DragEnter(dropTarget, &XDNDDataObject,
 317                                        MK_LBUTTON, pointl, &effect);
 318             if (SUCCEEDED(hr))
 319             {
 320                 if (effect != DROPEFFECT_NONE)
 321                 {
 322                     XDNDAccepted = TRUE;
 323                     TRACE("the application accepted the drop\n");
 324                 }
 325                 else
 326                     TRACE("the application refused the drop\n");
 327             }
 328             else
 329                 WARN("IDropTarget_DragEnter failed, error 0x%08X\n", hr);
 330             IDropTarget_Release(dropTarget);
 331         }
 332     }
 333     if (XDNDAccepted && XDNDLastTargetWnd == targetWindow)
 334     {
 335         /* If drag accepted notify OLE of DragOver */
 336         dropTarget = get_droptarget_pointer(XDNDLastDropTargetWnd);
 337         if (dropTarget)
 338         {
 339             hr = IDropTarget_DragOver(dropTarget, MK_LBUTTON, pointl, &effect);
 340             if (SUCCEEDED(hr))
 341                 XDNDDropEffect = effect;
 342             else
 343                 WARN("IDropTarget_DragOver failed, error 0x%08X\n", hr);
 344             IDropTarget_Release(dropTarget);
 345         }
 346     }
 347
 348     if (XDNDAccepted)
 349         accept = 1;
 350     if (GetWindowLongW( hWnd, GWL_EXSTYLE ) & WS_EX_ACCEPTFILES)
 351         accept = 1;
 352
 353     TRACE("action req: %ld accept(%d) at x(%d),y(%d)\n",
 354           event->data.l[4], accept, XDNDxy.x, XDNDxy.y);
 355
 356     /*
 357      * Let source know if we're accepting the drop by
 358      * sending a status message.
 359      */
 360     e.type = ClientMessage;
 361     e.display = event->display;
 362     e.window = event->data.l[0];
 363     e.message_type = x11drv_atom(XdndStatus);
 364     e.format = 32;
 365     e.data.l[0] = event->window;
 366     e.data.l[1] = accept;
 367     e.data.l[2] = 0; /* Empty Rect */
 368     e.data.l[3] = 0; /* Empty Rect */
 369     if (accept)
 370         e.data.l[4] = X11DRV_XDND_DROPEFFECTToXdndAction(effect);
 371     else
 372         e.data.l[4] = None;
 373     wine_tsx11_lock();
 374     XSendEvent(event->display, event->data.l[0], False, NoEventMask, (XEvent*)&e);
 375     wine_tsx11_unlock();
 376 }
 377
 378 /**************************************************************************
 379  * X11DRV_XDND_DropEvent
 380  *
 381  * Handle an XdndDrop event.
 382  */
 383 void X11DRV_XDND_DropEvent( HWND hWnd, XClientMessageEvent *event )
 384 {
 385     XClientMessageEvent e;
 386     IDropTarget *dropTarget;
 387
 388     TRACE("\n");
 389
 390     /* If we have a HDROP type we send a WM_ACCEPTFILES.*/
 391     if (GetWindowLongW( hWnd, GWL_EXSTYLE ) & WS_EX_ACCEPTFILES)
 392         X11DRV_XDND_SendDropFiles( hWnd );
 393
 394     /* Notify OLE of Drop */
 395     dropTarget = get_droptarget_pointer(XDNDLastDropTargetWnd);
 396     if (dropTarget)
 397     {
 398         HRESULT hr;
 399         POINTL pointl;
 400         DWORD effect = XDNDDropEffect;
 401
 402         pointl.x = XDNDxy.x;
 403         pointl.y = XDNDxy.y;
 404         hr = IDropTarget_Drop(dropTarget, &XDNDDataObject, MK_LBUTTON,
 405                               pointl, &effect);
 406         if (SUCCEEDED(hr))
 407         {
 408             if (effect != DROPEFFECT_NONE)
 409                 TRACE("drop succeeded\n");
 410             else
 411                 TRACE("the application refused the drop\n");
 412         }
 413         else
 414             WARN("drop failed, error 0x%08X\n", hr);
 415         IDropTarget_Release(dropTarget);
 416     }
 417
 418     X11DRV_XDND_FreeDragDropOp();
 419
 420     /* Tell the target we are finished. */
 421     memset(&e, 0, sizeof(e));
 422     e.type = ClientMessage;
 423     e.display = event->display;
 424     e.window = event->data.l[0];
 425     e.message_type = x11drv_atom(XdndFinished);
 426     e.format = 32;
 427     e.data.l[0] = event->window;
 428     wine_tsx11_lock();
 429     XSendEvent(event->display, event->data.l[0], False, NoEventMask, (XEvent*)&e);
 430     wine_tsx11_unlock();
 431 }
 432
 433 /**************************************************************************
 434  * X11DRV_XDND_LeaveEvent
 435  *
 436  * Handle an XdndLeave event.
 437  */
 438 void X11DRV_XDND_LeaveEvent( HWND hWnd, XClientMessageEvent *event )
 439 {
 440     IDropTarget *dropTarget;
 441
 442     TRACE("DND Operation canceled\n");
 443
 444     /* Notify OLE of DragLeave */
 445     dropTarget = get_droptarget_pointer(XDNDLastDropTargetWnd);
 446     if (dropTarget)
 447     {
 448         HRESULT hr = IDropTarget_DragLeave(dropTarget);
 449         if (FAILED(hr))
 450             WARN("IDropTarget_DragLeave failed, error 0x%08X\n", hr);
 451         IDropTarget_Release(dropTarget);
 452     }
 453
 454     X11DRV_XDND_FreeDragDropOp();
 455 }
 456
 457
 458 /**************************************************************************
 459  * X11DRV_XDND_ResolveProperty
 460  *
 461  * Resolve all MIME types to windows clipboard formats. All data is cached.
 462  */
 463 static void X11DRV_XDND_ResolveProperty(Display *display, Window xwin, Time tm,
 464                                         Atom *types, unsigned long *count)
 465 {
 466     unsigned int i, j;
 467     BOOL res;
 468     XEvent xe;
 469     Atom acttype;
 470     int actfmt;
 471     unsigned long bytesret, icount;
 472     int entries = 0;
 473     unsigned char* data = NULL;
 474     XDNDDATA *current, *next;
 475     BOOL haveHDROP = FALSE;
 476
 477     TRACE("count(%ld)\n", *count);
 478
 479     X11DRV_XDND_FreeDragDropOp(); /* Clear previously cached data */
 480
 481     for (i = 0; i < *count; i++)
 482     {
 483         TRACE("requesting atom %ld from xwin %ld\n", types[i], xwin);
 484
 485         if (types[i] == 0)
 486             continue;
 487
 488         wine_tsx11_lock();
 489         XConvertSelection(display, x11drv_atom(XdndSelection), types[i],
 490                           x11drv_atom(XdndTarget), xwin, /*tm*/CurrentTime);
 491         wine_tsx11_unlock();
 492
 493         /*
 494          * Wait for SelectionNotify
 495          */
 496         for (j = 0; j < SELECTION_RETRIES; j++)
 497         {
 498             wine_tsx11_lock();
 499             res = XCheckTypedWindowEvent(display, xwin, SelectionNotify, &xe);
 500             wine_tsx11_unlock();
 501             if (res && xe.xselection.selection == x11drv_atom(XdndSelection)) break;
 502
 503             usleep(SELECTION_WAIT);
 504         }
 505
 506         if (xe.xselection.property == None)
 507             continue;
 508
 509         wine_tsx11_lock();
 510         XGetWindowProperty(display, xwin, x11drv_atom(XdndTarget), 0, 65535, FALSE,
 511             AnyPropertyType, &acttype, &actfmt, &icount, &bytesret, &data);
 512         wine_tsx11_unlock();
 513
 514         entries += X11DRV_XDND_MapFormat(types[i], data, get_property_size( actfmt, icount ));
 515         wine_tsx11_lock();
 516         XFree(data);
 517         wine_tsx11_unlock();
 518     }
 519
 520     /* On Windows when there is a CF_HDROP, there are no other CF_ formats.
 521      * foobar2000 relies on this (spaces -> %20's without it).
 522      */
 523     LIST_FOR_EACH_ENTRY(current, &xdndData, XDNDDATA, entry)
 524     {
 525         if (current->cf_win == CF_HDROP)
 526         {
 527             haveHDROP = TRUE;
 528             break;
 529         }
 530     }
 531     if (haveHDROP)
 532     {
 533         LIST_FOR_EACH_ENTRY_SAFE(current, next, &xdndData, XDNDDATA, entry)
 534         {
 535             if (current->cf_win != CF_HDROP && current->cf_win < CF_MAX)
 536             {
 537                 list_remove(&current->entry);
 538                 HeapFree(GetProcessHeap(), 0, current->data);
 539                 HeapFree(GetProcessHeap(), 0, current);
 540                 --entries;
 541             }
 542         }
 543     }
 544
 545     *count = entries;
 546 }
 547
 548
 549 /**************************************************************************
 550  * X11DRV_XDND_InsertXDNDData
 551  *
 552  * Cache available XDND property
 553  */
 554 static void X11DRV_XDND_InsertXDNDData(int property, int format, void* data, unsigned int len)
 555 {
 556     LPXDNDDATA current = HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY, sizeof(XDNDDATA));
 557
 558     if (current)
 559     {
 560         EnterCriticalSection(&xdnd_cs);
 561         current->cf_xdnd = property;
 562         current->cf_win = format;
 563         current->data = data;
 564         current->size = len;
 565         list_add_tail(&xdndData, &current->entry);
 566         LeaveCriticalSection(&xdnd_cs);
 567     }
 568 }
 569
 570
 571 /**************************************************************************
 572  * X11DRV_XDND_MapFormat
 573  *
 574  * Map XDND MIME format to windows clipboard format.
 575  */
 576 static int X11DRV_XDND_MapFormat(unsigned int property, unsigned char *data, int len)
 577 {
 578     void* xdata;
 579     int count = 0;
 580
 581     TRACE("%d: %s\n", property, data);
 582
 583     /* Always include the raw type */
 584     xdata = HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY, len);
 585     memcpy(xdata, data, len);
 586     X11DRV_XDND_InsertXDNDData(property, property, xdata, len);
 587     count++;
 588
 589     if (property == x11drv_atom(text_uri_list))
 590         count += X11DRV_XDND_DeconstructTextURIList(property, data, len);
 591     else if (property == x11drv_atom(text_plain))
 592         count += X11DRV_XDND_DeconstructTextPlain(property, data, len);
 593     else if (property == x11drv_atom(text_html))
 594         count += X11DRV_XDND_DeconstructTextHTML(property, data, len);
 595
 596     return count;
 597 }
 598
 599
 600 /**************************************************************************
 601  * X11DRV_XDND_DeconstructTextURIList
 602  *
 603  * Interpret text/uri-list data and add records to <dndfmt> linked list
 604  */
 605 static int X11DRV_XDND_DeconstructTextURIList(int property, void* data, int len)
 606 {
 607     char *uriList = data;
 608     char *uri;
 609     WCHAR *path;
 610
 611     WCHAR *out = NULL;
 612     int size = 0;
 613     int capacity = 4096;
 614
 615     int count = 0;
 616     int start = 0;
 617     int end = 0;
 618
 619     out = HeapAlloc(GetProcessHeap(), 0, capacity * sizeof(WCHAR));
 620     if (out == NULL)
 621         return 0;
 622
 623     while (end < len)
 624     {
 625         while (end < len && uriList[end] != '\r')
 626             ++end;
 627         if (end < (len - 1) && uriList[end+1] != '\n')
 628         {
 629             WARN("URI list line doesn't end in \\r\\n\n");
 630             break;
 631         }
 632
 633         uri = HeapAlloc(GetProcessHeap(), 0, end - start + 1);
 634         if (uri == NULL)
 635             break;
 636         lstrcpynA(uri, &uriList[start], end - start + 1);
 637         path = X11DRV_XDND_URIToDOS(uri);
 638         TRACE("converted URI %s to DOS path %s\n", debugstr_a(uri), debugstr_w(path));
 639         HeapFree(GetProcessHeap(), 0, uri);
 640
 641         if (path)
 642         {
 643             int pathSize = strlenW(path) + 1;
 644             if (pathSize > capacity-size)
 645             {
 646                 capacity = 2*capacity + pathSize;
 647                 out = HeapReAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY, out, (capacity + 1)*sizeof(WCHAR));
 648                 if (out == NULL)
 649                     goto done;
 650             }
 651             memcpy(&out[size], path, pathSize * sizeof(WCHAR));
 652             size += pathSize;
 653         done:
 654             HeapFree(GetProcessHeap(), 0, path);
 655             if (out == NULL)
 656                 break;
 657         }
 658
 659         start = end + 2;
 660         end = start;
 661     }
 662     if (out && end >= len)
 663     {
 664         DROPFILES *dropFiles;
 665         dropFiles = HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY, sizeof(DROPFILES) + (size + 1)*sizeof(WCHAR));
 666         if (dropFiles)
 667         {
 668             dropFiles->pFiles = sizeof(DROPFILES);
 669             dropFiles->pt.x = XDNDxy.x;
 670             dropFiles->pt.y = XDNDxy.y;
 671             dropFiles->fNC = 0;
 672             dropFiles->fWide = TRUE;
 673             out[size] = '\0';
 674             memcpy(((char*)dropFiles) + dropFiles->pFiles, out, (size + 1)*sizeof(WCHAR));
 675             X11DRV_XDND_InsertXDNDData(property, CF_HDROP, dropFiles, sizeof(DROPFILES) + (size + 1)*sizeof(WCHAR));
 676             count = 1;
 677         }
 678     }
 679     HeapFree(GetProcessHeap(), 0, out);
 680     return count;
 681 }
 682
 683
 684 /**************************************************************************
 685  * X11DRV_XDND_DeconstructTextPlain
 686  *
 687  * Interpret text/plain Data and add records to <dndfmt> linked list
 688  */
 689 static int X11DRV_XDND_DeconstructTextPlain(int property, void* data, int len)
 690 {
 691     char* dostext;
 692
 693     /* Always supply plain text */
 694     X11DRV_XDND_UnixToDos(&dostext, data, len);
 695     X11DRV_XDND_InsertXDNDData(property, CF_TEXT, dostext, strlen(dostext));
 696
 697     TRACE("CF_TEXT (%d): %s\n", CF_TEXT, dostext);
 698
 699     return 1;
 700 }
 701
 702
 703 /**************************************************************************
 704  * X11DRV_XDND_DeconstructTextHTML
 705  *
 706  * Interpret text/html data and add records to <dndfmt> linked list
 707  */
 708 static int X11DRV_XDND_DeconstructTextHTML(int property, void* data, int len)
 709 {
 710     char* dostext;
 711
 712     X11DRV_XDND_UnixToDos(&dostext, data, len);
 713
 714     X11DRV_XDND_InsertXDNDData(property,
 715         RegisterClipboardFormatA("UniformResourceLocator"), dostext, strlen(dostext));
 716
 717     TRACE("UniformResourceLocator: %s\n", dostext);
 718
 719     return 1;
 720 }
 721
 722
 723 /**************************************************************************
 724  * X11DRV_XDND_SendDropFiles
 725  */
 726 static void X11DRV_XDND_SendDropFiles(HWND hwnd)
 727 {
 728     LPXDNDDATA current = NULL;
 729     BOOL found = FALSE;
 730
 731     EnterCriticalSection(&xdnd_cs);
 732
 733     /* Find CF_HDROP type if any */
 734     LIST_FOR_EACH_ENTRY(current, &xdndData, XDNDDATA, entry)
 735     {
 736         if (current->cf_win == CF_HDROP)
 737         {
 738             found = TRUE;
 739             break;
 740         }
 741     }
 742
 743     if (found)
 744     {
 745         DROPFILES *lpDrop = current->data;
 746
 747         if (lpDrop)
 748         {
 749             lpDrop->pt.x = XDNDxy.x;
 750             lpDrop->pt.y = XDNDxy.y;
 751
 752             TRACE("Sending WM_DROPFILES: hWnd(0x%p) %p(%s)\n", hwnd,
 753                 ((char*)lpDrop) + lpDrop->pFiles, debugstr_w((WCHAR*)(((char*)lpDrop) + lpDrop->pFiles)));
 754
 755             PostMessageW(hwnd, WM_DROPFILES, (WPARAM)lpDrop, 0L);
 756         }
 757     }
 758
 759     LeaveCriticalSection(&xdnd_cs);
 760 }
 761
 762
 763 /**************************************************************************
 764  * X11DRV_XDND_FreeDragDropOp
 765  */
 766 static void X11DRV_XDND_FreeDragDropOp(void)
 767 {
 768     LPXDNDDATA next;
 769     LPXDNDDATA current;
 770
 771     TRACE("\n");
 772
 773     EnterCriticalSection(&xdnd_cs);
 774
 775     /** Free data cache */
 776     LIST_FOR_EACH_ENTRY_SAFE(current, next, &xdndData, XDNDDATA, entry)
 777     {
 778         list_remove(&current->entry);
 779         HeapFree(GetProcessHeap(), 0, current);
 780     }
 781
 782     XDNDxy.x = XDNDxy.y = 0;
 783     XDNDLastTargetWnd = NULL;
 784     XDNDLastDropTargetWnd = NULL;
 785     XDNDAccepted = FALSE;
 786
 787     LeaveCriticalSection(&xdnd_cs);
 788 }
 789
 790
 791
 792 /**************************************************************************
 793  * X11DRV_XDND_UnixToDos
 794  */
 795 static unsigned int X11DRV_XDND_UnixToDos(char** lpdest, char* lpsrc, int len)
 796 {
 797     int i;
 798     unsigned int destlen, lines;
 799
 800     for (i = 0, lines = 0; i <= len; i++)
 801     {
 802         if (lpsrc[i] == '\n')
 803             lines++;
 804     }
 805
 806     destlen = len + lines + 1;
 807
 808     if (lpdest)
 809     {
 810         char* lpstr = HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY, destlen);
 811         for (i = 0, lines = 0; i <= len; i++)
 812         {
 813             if (lpsrc[i] == '\n')
 814                 lpstr[++lines + i] = '\r';
 815             lpstr[lines + i] = lpsrc[i];
 816         }
 817
 818         *lpdest = lpstr;
 819     }
 820
 821     return lines;
 822 }
 823
 824
 825 /**************************************************************************
 826  * X11DRV_XDND_URIToDOS
 827  */
 828 static WCHAR* X11DRV_XDND_URIToDOS(char *encodedURI)
 829 {
 830     WCHAR *ret = NULL;
 831     int i;
 832     int j = 0;
 833     char *uri = HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY, strlen(encodedURI) + 1);
 834     if (uri == NULL)
 835         return NULL;
 836     for (i = 0; encodedURI[i]; ++i)
 837     {
 838         if (encodedURI[i] == '%')
 839         {
 840             if (encodedURI[i+1] && encodedURI[i+2])
 841             {
 842                 char buffer[3];
 843                 int number;
 844                 buffer[0] = encodedURI[i+1];
 845                 buffer[1] = encodedURI[i+2];
 846                 buffer[2] = '\0';
 847                 sscanf(buffer, "%x", &number);
 848                 uri[j++] = number;
 849                 i += 2;
 850             }
 851             else
 852             {
 853                 WARN("invalid URI encoding in %s\n", debugstr_a(encodedURI));
 854                 HeapFree(GetProcessHeap(), 0, uri);
 855                 return NULL;
 856             }
 857         }
 858         else
 859             uri[j++] = encodedURI[i];
 860     }
 861
 862     /* Read http://www.freedesktop.org/wiki/Draganddropwarts and cry... */
 863     if (strncmp(uri, "file:/", 6) == 0)
 864     {
 865         if (uri[6] == '/')
 866         {
 867             if (uri[7] == '/')
 868             {
 869                 /* file:///path/to/file (nautilus, thunar) */
 870                 ret = wine_get_dos_file_name(&uri[7]);
 871             }
 872             else if (uri[7])
 873             {
 874                 /* file://hostname/path/to/file (X file drag spec) */
 875                 char hostname[256];
 876                 char *path = strchr(&uri[7], '/');
 877                 if (path)
 878                 {
 879                     *path = '\0';
 880                     if (strcmp(&uri[7], "localhost") == 0)
 881                     {
 882                         *path = '/';
 883                         ret = wine_get_dos_file_name(path);
 884                     }
 885                     else if (gethostname(hostname, sizeof(hostname)) == 0)
 886                     {
 887                         if (strcmp(hostname, &uri[7]) == 0)
 888                         {
 889                             *path = '/';
 890                             ret = wine_get_dos_file_name(path);
 891                         }
 892                     }
 893                 }
 894             }
 895         }
 896         else if (uri[6])
 897         {
 898             /* file:/path/to/file (konqueror) */
 899             ret = wine_get_dos_file_name(&uri[5]);
 900         }
 901     }
 902     HeapFree(GetProcessHeap(), 0, uri);
 903     return ret;
 904 }
 905
 906
 907 /**************************************************************************
 908  * X11DRV_XDND_DescribeClipboardFormat
 909  */
 910 static void X11DRV_XDND_DescribeClipboardFormat(int cfFormat, char *buffer, int size)
 911 {
 912 #define D(x) case x: lstrcpynA(buffer, #x, size); return;
 913     switch (cfFormat)
 914     {
 915         D(CF_TEXT)
 916         D(CF_BITMAP)
 917         D(CF_METAFILEPICT)
 918         D(CF_SYLK)
 919         D(CF_DIF)
 920         D(CF_TIFF)
 921         D(CF_OEMTEXT)
 922         D(CF_DIB)
 923         D(CF_PALETTE)
 924         D(CF_PENDATA)
 925         D(CF_RIFF)
 926         D(CF_WAVE)
 927         D(CF_UNICODETEXT)
 928         D(CF_ENHMETAFILE)
 929         D(CF_HDROP)
 930         D(CF_LOCALE)
 931         D(CF_DIBV5)
 932     }
 933 #undef D
 934
 935     if (CF_PRIVATEFIRST <= cfFormat && cfFormat <= CF_PRIVATELAST)
 936     {
 937         lstrcpynA(buffer, "some private object", size);
 938         return;
 939     }
 940     if (CF_GDIOBJFIRST <= cfFormat && cfFormat <= CF_GDIOBJLAST)
 941     {
 942         lstrcpynA(buffer, "some GDI object", size);
 943         return;
 944     }
 945
 946     GetClipboardFormatNameA(cfFormat, buffer, size);
 947 }
 948
 949
 950 /* The IDataObject singleton we feed to OLE follows */
 951
 952 static HRESULT WINAPI XDNDDATAOBJECT_QueryInterface(IDataObject *dataObject,
 953                                                     REFIID riid, void **ppvObject)
 954 {
 955     TRACE("(%p, %s, %p)\n", dataObject, debugstr_guid(riid), ppvObject);
 956     if (IsEqualIID(riid, &IID_IUnknown) || IsEqualIID(riid, &IID_IDataObject))
 957     {
 958         *ppvObject = dataObject;
 959         IDataObject_AddRef(dataObject);
 960         return S_OK;
 961     }
 962     *ppvObject = NULL;
 963     return E_NOINTERFACE;
 964 }
 965
 966 static ULONG WINAPI XDNDDATAOBJECT_AddRef(IDataObject *dataObject)
 967 {
 968     TRACE("(%p)\n", dataObject);
 969     return 2;
 970 }
 971
 972 static ULONG WINAPI XDNDDATAOBJECT_Release(IDataObject *dataObject)
 973 {
 974     TRACE("(%p)\n", dataObject);
 975     return 1;
 976 }
 977
 978 static HRESULT WINAPI XDNDDATAOBJECT_GetData(IDataObject *dataObject,
 979                                              FORMATETC *formatEtc,
 980                                              STGMEDIUM *pMedium)
 981 {
 982     HRESULT hr;
 983     char formatDesc[1024];
 984
 985     TRACE("(%p, %p, %p)\n", dataObject, formatEtc, pMedium);
 986     X11DRV_XDND_DescribeClipboardFormat(formatEtc->cfFormat,
 987         formatDesc, sizeof(formatDesc));
 988     TRACE("application is looking for %s\n", formatDesc);
 989
 990     hr = IDataObject_QueryGetData(dataObject, formatEtc);
 991     if (SUCCEEDED(hr))
 992     {
 993         XDNDDATA *current;
 994         LIST_FOR_EACH_ENTRY(current, &xdndData, XDNDDATA, entry)
 995         {
 996             if (current->cf_win == formatEtc->cfFormat)
 997             {
 998                 pMedium->tymed = TYMED_HGLOBAL;
 999                 pMedium->hGlobal = HeapAlloc(GetProcessHeap(), 0, current->size);
1000                 if (pMedium->hGlobal == NULL)
1001                     return E_OUTOFMEMORY;
1002                 memcpy(pMedium->hGlobal, current->data, current->size);
1003                 pMedium->pUnkForRelease = 0;
1004                 return S_OK;
1005             }
1006         }
1007     }
1008     return hr;
1009 }
1010
1011 static HRESULT WINAPI XDNDDATAOBJECT_GetDataHere(IDataObject *dataObject,
1012                                                  FORMATETC *formatEtc,
1013                                                  STGMEDIUM *pMedium)
1014 {
1015     FIXME("(%p, %p, %p): stub\n", dataObject, formatEtc, pMedium);
1016     return DATA_E_FORMATETC;
1017 }
1018
1019 static HRESULT WINAPI XDNDDATAOBJECT_QueryGetData(IDataObject *dataObject,
1020                                                   FORMATETC *formatEtc)
1021 {
1022     char formatDesc[1024];
1023     XDNDDATA *current;
1024
1025     TRACE("(%p, %p={.tymed=0x%x, .dwAspect=%d, .cfFormat=%d}\n",
1026         dataObject, formatEtc, formatEtc->tymed, formatEtc->dwAspect, formatEtc->cfFormat);
1027     X11DRV_XDND_DescribeClipboardFormat(formatEtc->cfFormat, formatDesc, sizeof(formatDesc));
1028
1029     if (formatEtc->tymed && !(formatEtc->tymed & TYMED_HGLOBAL))
1030     {
1031         FIXME("only HGLOBAL medium types supported right now\n");
1032         return DV_E_TYMED;
1033     }
1034     if (formatEtc->dwAspect != DVASPECT_CONTENT)
1035     {
1036         FIXME("only the content aspect is supported right now\n");
1037         return E_NOTIMPL;
1038     }
1039
1040     LIST_FOR_EACH_ENTRY(current, &xdndData, XDNDDATA, entry)
1041     {
1042         if (current->cf_win == formatEtc->cfFormat)
1043         {
1044             TRACE("application found %s\n", formatDesc);
1045             return S_OK;
1046         }
1047     }
1048     TRACE("application didn't find %s\n", formatDesc);
1049     return DV_E_FORMATETC;
1050 }
1051
1052 static HRESULT WINAPI XDNDDATAOBJECT_GetCanonicalFormatEtc(IDataObject *dataObject,
1053                                                            FORMATETC *formatEtc,
1054                                                            FORMATETC *formatEtcOut)
1055 {
1056     FIXME("(%p, %p, %p): stub\n", dataObject, formatEtc, formatEtcOut);
1057     formatEtcOut->ptd = NULL;
1058     return E_NOTIMPL;
1059 }
1060
1061 static HRESULT WINAPI XDNDDATAOBJECT_SetData(IDataObject *dataObject,
1062                                              FORMATETC *formatEtc,
1063                                              STGMEDIUM *pMedium, BOOL fRelease)
1064 {
1065     FIXME("(%p, %p, %p, %s): stub\n", dataObject, formatEtc,
1066         pMedium, fRelease?"TRUE":"FALSE");
1067     return E_NOTIMPL;
1068 }
1069
1070 static HRESULT WINAPI XDNDDATAOBJECT_EnumFormatEtc(IDataObject *dataObject,
1071                                                    DWORD dwDirection,
1072                                                    IEnumFORMATETC **ppEnumFormatEtc)
1073 {
1074     DWORD count;
1075     FORMATETC *formats;
1076
1077     TRACE("(%p, %u, %p)\n", dataObject, dwDirection, ppEnumFormatEtc);
1078
1079     if (dwDirection != DATADIR_GET)
1080     {
1081         FIXME("only the get direction is implemented\n");
1082         return E_NOTIMPL;
1083     }
1084
1085     count = list_count(&xdndData);
1086     formats = HeapAlloc(GetProcessHeap(), 0, count * sizeof(FORMATETC));
1087     if (formats)
1088     {
1089         XDNDDATA *current;
1090         DWORD i = 0;
1091         HRESULT hr;
1092         LIST_FOR_EACH_ENTRY(current, &xdndData, XDNDDATA, entry)
1093         {
1094             formats[i].cfFormat = current->cf_win;
1095             formats[i].ptd = NULL;
1096             formats[i].dwAspect = DVASPECT_CONTENT;
1097             formats[i].lindex = -1;
1098             formats[i].tymed = TYMED_HGLOBAL;
1099             i++;
1100         }
1101         hr = SHCreateStdEnumFmtEtc(count, formats, ppEnumFormatEtc);
1102         HeapFree(GetProcessHeap(), 0, formats);
1103         return hr;
1104     }
1105     else
1106         return E_OUTOFMEMORY;
1107 }
1108
1109 static HRESULT WINAPI XDNDDATAOBJECT_DAdvise(IDataObject *dataObject,
1110                                              FORMATETC *formatEtc, DWORD advf,
1111                                              IAdviseSink *adviseSink,
1112                                              DWORD *pdwConnection)
1113 {
1114     FIXME("(%p, %p, %u, %p, %p): stub\n", dataObject, formatEtc, advf,
1115         adviseSink, pdwConnection);
1116     return OLE_E_ADVISENOTSUPPORTED;
1117 }
1118
1119 static HRESULT WINAPI XDNDDATAOBJECT_DUnadvise(IDataObject *dataObject,
1120                                                DWORD dwConnection)
1121 {
1122     FIXME("(%p, %u): stub\n", dataObject, dwConnection);
1123     return OLE_E_ADVISENOTSUPPORTED;
1124 }
1125
1126 static HRESULT WINAPI XDNDDATAOBJECT_EnumDAdvise(IDataObject *dataObject,
1127                                                  IEnumSTATDATA **pEnumAdvise)
1128 {
1129     FIXME("(%p, %p): stub\n", dataObject, pEnumAdvise);
1130     return OLE_E_ADVISENOTSUPPORTED;
1131 }
1132
1133 static IDataObjectVtbl xdndDataObjectVtbl =
1134 {
1135     XDNDDATAOBJECT_QueryInterface,
1136     XDNDDATAOBJECT_AddRef,
1137     XDNDDATAOBJECT_Release,
1138     XDNDDATAOBJECT_GetData,
1139     XDNDDATAOBJECT_GetDataHere,
1140     XDNDDATAOBJECT_QueryGetData,
1141     XDNDDATAOBJECT_GetCanonicalFormatEtc,
1142     XDNDDATAOBJECT_SetData,
1143     XDNDDATAOBJECT_EnumFormatEtc,
1144     XDNDDATAOBJECT_DAdvise,
1145     XDNDDATAOBJECT_DUnadvise,
1146     XDNDDATAOBJECT_EnumDAdvise
1147 };
1148
1149 static IDataObject XDNDDataObject = { &xdndDataObjectVtbl };