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 #define NONAMELESSUNION
  33
  34 #include "windef.h"
  35 #include "winbase.h"
  36 #include "wingdi.h"
  37 #include "winuser.h"
  38
  39 #define COBJMACROS
  40 #include "x11drv.h"
  41 #include "shlobj.h"  /* DROPFILES */
  42 #include "oleidl.h"
  43 #include "objidl.h"
  44
  45 #include "wine/unicode.h"
  46 #include "wine/debug.h"
  47 #include "wine/list.h"
  48
  49 WINE_DEFAULT_DEBUG_CHANNEL(xdnd);
  50
  51 /* Maximum wait time for selection notify */
  52 #define SELECTION_RETRIES 500  /* wait for .1 seconds */
  53 #define SELECTION_WAIT    1000 /* us */
  54
  55 typedef struct tagXDNDDATA
  56 {
  57     int cf_win;
  58     Atom cf_xdnd;
  59     void *data;
  60     unsigned int size;
  61     struct list entry;
  62 } XDNDDATA, *LPXDNDDATA;
  63
  64 static struct list xdndData = LIST_INIT(xdndData);
  65 static POINT XDNDxy = { 0, 0 };
  66 static IDataObject XDNDDataObject;
  67 static BOOL XDNDAccepted = FALSE;
  68 static DWORD XDNDDropEffect = DROPEFFECT_NONE;
  69 /* the last window the mouse was over */
  70 static HWND XDNDLastTargetWnd;
  71 /* might be a ancestor of XDNDLastTargetWnd */
  72 static HWND XDNDLastDropTargetWnd;
  73
  74 static void X11DRV_XDND_InsertXDNDData(int property, int format, void* data, unsigned int len);
  75 static int X11DRV_XDND_DeconstructTextURIList(int property, void* data, int len);
  76 static int X11DRV_XDND_DeconstructTextPlain(int property, void* data, int len);
  77 static int X11DRV_XDND_DeconstructTextHTML(int property, void* data, int len);
  78 static int X11DRV_XDND_MapFormat(unsigned int property, unsigned char *data, int len);
  79 static void X11DRV_XDND_ResolveProperty(Display *display, Window xwin, Time tm,
  80     Atom *types, unsigned long *count);
  81 static void X11DRV_XDND_SendDropFiles(HWND hwnd);
  82 static void X11DRV_XDND_FreeDragDropOp(void);
  83 static unsigned int X11DRV_XDND_UnixToDos(char** lpdest, char* lpsrc, int len);
  84 static WCHAR* X11DRV_XDND_URIToDOS(char *encodedURI);
  85
  86 static CRITICAL_SECTION xdnd_cs;
  87 static CRITICAL_SECTION_DEBUG critsect_debug =
  88 {
  89     0, 0, &xdnd_cs,
  90     { &critsect_debug.ProcessLocksList, &critsect_debug.ProcessLocksList },
  91       0, 0, { (DWORD_PTR)(__FILE__ ": xdnd_cs") }
  92 };
  93 static CRITICAL_SECTION xdnd_cs = { &critsect_debug, -1, 0, 0, 0, 0 };
  94
  95
  96 /* Based on functions in dlls/ole32/ole2.c */
  97 static HANDLE get_droptarget_local_handle(HWND hwnd)
  98 {
  99     static const WCHAR prop_marshalleddroptarget[] =
 100         {'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};
 101     HANDLE handle;
 102     HANDLE local_handle = 0;
 103
 104     handle = GetPropW(hwnd, prop_marshalleddroptarget);
 105     if (handle)
 106     {
 107         DWORD pid;
 108         HANDLE process;
 109
 110         GetWindowThreadProcessId(hwnd, &pid);
 111         process = OpenProcess(PROCESS_DUP_HANDLE, FALSE, pid);
 112         if (process)
 113         {
 114             DuplicateHandle(process, handle, GetCurrentProcess(), &local_handle, 0, FALSE, DUPLICATE_SAME_ACCESS);
 115             CloseHandle(process);
 116         }
 117     }
 118     return local_handle;
 119 }
 120
 121 static HRESULT create_stream_from_map(HANDLE map, IStream **stream)
 122 {
 123     HRESULT hr = E_OUTOFMEMORY;
 124     HGLOBAL hmem;
 125     void *data;
 126     MEMORY_BASIC_INFORMATION info;
 127
 128     data = MapViewOfFile(map, FILE_MAP_READ, 0, 0, 0);
 129     if(!data) return hr;
 130
 131     VirtualQuery(data, &info, sizeof(info));
 132     TRACE("size %d\n", (int)info.RegionSize);
 133
 134     hmem = GlobalAlloc(GMEM_MOVEABLE, info.RegionSize);
 135     if(hmem)
 136     {
 137         memcpy(GlobalLock(hmem), data, info.RegionSize);
 138         GlobalUnlock(hmem);
 139         hr = CreateStreamOnHGlobal(hmem, TRUE, stream);
 140     }
 141     UnmapViewOfFile(data);
 142     return hr;
 143 }
 144
 145 static IDropTarget* get_droptarget_pointer(HWND hwnd)
 146 {
 147     IDropTarget *droptarget = NULL;
 148     HANDLE map;
 149     IStream *stream;
 150
 151     map = get_droptarget_local_handle(hwnd);
 152     if(!map) return NULL;
 153
 154     if(SUCCEEDED(create_stream_from_map(map, &stream)))
 155     {
 156         CoUnmarshalInterface(stream, &IID_IDropTarget, (void**)&droptarget);
 157         IStream_Release(stream);
 158     }
 159     CloseHandle(map);
 160     return droptarget;
 161 }
 162
 163 /**************************************************************************
 164  * X11DRV_XDND_XdndActionToDROPEFFECT
 165  */
 166 static DWORD X11DRV_XDND_XdndActionToDROPEFFECT(long action)
 167 {
 168     /* In Windows, nothing but the given effects is allowed.
 169      * In X the given action is just a hint, and you can always
 170      * XdndActionCopy and XdndActionPrivate, so be more permissive. */
 171     if (action == x11drv_atom(XdndActionCopy))
 172         return DROPEFFECT_COPY;
 173     else if (action == x11drv_atom(XdndActionMove))
 174         return DROPEFFECT_MOVE | DROPEFFECT_COPY;
 175     else if (action == x11drv_atom(XdndActionLink))
 176         return DROPEFFECT_LINK | DROPEFFECT_COPY;
 177     else if (action == x11drv_atom(XdndActionAsk))
 178         /* FIXME: should we somehow ask the user what to do here? */
 179         return DROPEFFECT_COPY | DROPEFFECT_MOVE | DROPEFFECT_LINK;
 180     FIXME("unknown action %ld, assuming DROPEFFECT_COPY\n", action);
 181     return DROPEFFECT_COPY;
 182 }
 183
 184 /**************************************************************************
 185  * X11DRV_XDND_DROPEFFECTToXdndAction
 186  */
 187 static long X11DRV_XDND_DROPEFFECTToXdndAction(DWORD effect)
 188 {
 189     if (effect == DROPEFFECT_COPY)
 190         return x11drv_atom(XdndActionCopy);
 191     else if (effect == DROPEFFECT_MOVE)
 192         return x11drv_atom(XdndActionMove);
 193     else if (effect == DROPEFFECT_LINK)
 194         return x11drv_atom(XdndActionLink);
 195     FIXME("unknown drop effect %u, assuming XdndActionCopy\n", effect);
 196     return x11drv_atom(XdndActionCopy);
 197 }
 198
 199 /**************************************************************************
 200  * X11DRV_XDND_EnterEvent
 201  *
 202  * Handle an XdndEnter event.
 203  */
 204 void X11DRV_XDND_EnterEvent( HWND hWnd, XClientMessageEvent *event )
 205 {
 206     int version;
 207     Atom *xdndtypes;
 208     unsigned long count = 0;
 209
 210     version = (event->data.l[1] & 0xFF000000) >> 24;
 211     TRACE("ver(%d) check-XdndTypeList(%ld) data=%ld,%ld,%ld,%ld,%ld\n",
 212           version, (event->data.l[1] & 1),
 213           event->data.l[0], event->data.l[1], event->data.l[2],
 214           event->data.l[3], event->data.l[4]);
 215
 216     if (version > WINE_XDND_VERSION)
 217     {
 218         TRACE("Ignores unsupported version\n");
 219         return;
 220     }
 221
 222     XDNDAccepted = FALSE;
 223
 224     /* If the source supports more than 3 data types we retrieve
 225      * the entire list. */
 226     if (event->data.l[1] & 1)
 227     {
 228         Atom acttype;
 229         int actfmt;
 230         unsigned long bytesret;
 231
 232         /* Request supported formats from source window */
 233         wine_tsx11_lock();
 234         XGetWindowProperty(event->display, event->data.l[0], x11drv_atom(XdndTypeList),
 235                            0, 65535, FALSE, AnyPropertyType, &acttype, &actfmt, &count,
 236                            &bytesret, (unsigned char**)&xdndtypes);
 237         wine_tsx11_unlock();
 238     }
 239     else
 240     {
 241         count = 3;
 242         xdndtypes = (Atom*) &event->data.l[2];
 243     }
 244
 245     if (TRACE_ON(xdnd))
 246     {
 247         unsigned int i = 0;
 248
 249         wine_tsx11_lock();
 250         for (; i < count; i++)
 251         {
 252             if (xdndtypes[i] != 0)
 253             {
 254                 char * pn = XGetAtomName(event->display, xdndtypes[i]);
 255                 TRACE("XDNDEnterAtom %ld: %s\n", xdndtypes[i], pn);
 256                 XFree(pn);
 257             }
 258         }
 259         wine_tsx11_unlock();
 260     }
 261
 262     /* Do a one-time data read and cache results */
 263     X11DRV_XDND_ResolveProperty(event->display, event->window,
 264                                 event->data.l[1], xdndtypes, &count);
 265
 266     if (event->data.l[1] & 1)
 267         XFree(xdndtypes);
 268 }
 269
 270 /**************************************************************************
 271  * X11DRV_XDND_PositionEvent
 272  *
 273  * Handle an XdndPosition event.
 274  */
 275 void X11DRV_XDND_PositionEvent( HWND hWnd, XClientMessageEvent *event )
 276 {
 277     XClientMessageEvent e;
 278     int accept = 0; /* Assume we're not accepting */
 279     IDropTarget *dropTarget = NULL;
 280     DWORD effect;
 281     POINTL pointl;
 282     HWND targetWindow;
 283     HRESULT hr;
 284
 285     XDNDxy.x = event->data.l[2] >> 16;
 286     XDNDxy.y = event->data.l[2] & 0xFFFF;
 287     XDNDxy.x += virtual_screen_rect.left;
 288     XDNDxy.y += virtual_screen_rect.top;
 289     targetWindow = WindowFromPoint(XDNDxy);
 290
 291     pointl.x = XDNDxy.x;
 292     pointl.y = XDNDxy.y;
 293     effect = X11DRV_XDND_XdndActionToDROPEFFECT(event->data.l[4]);
 294
 295     if (!XDNDAccepted || XDNDLastTargetWnd != targetWindow)
 296     {
 297         /* Notify OLE of DragEnter. Result determines if we accept */
 298         HWND dropTargetWindow;
 299
 300         if (XDNDLastDropTargetWnd)
 301         {
 302             dropTarget = get_droptarget_pointer(XDNDLastDropTargetWnd);
 303             if (dropTarget)
 304             {
 305                 hr = IDropTarget_DragLeave(dropTarget);
 306                 if (FAILED(hr))
 307                     WARN("IDropTarget_DragLeave failed, error 0x%08X\n", hr);
 308                 IDropTarget_Release(dropTarget);
 309             }
 310         }
 311         dropTargetWindow = targetWindow;
 312         do
 313         {
 314             dropTarget = get_droptarget_pointer(dropTargetWindow);
 315         } while (dropTarget == NULL && (dropTargetWindow = GetParent(dropTargetWindow)) != NULL);
 316         XDNDLastTargetWnd = targetWindow;
 317         XDNDLastDropTargetWnd = dropTargetWindow;
 318         if (dropTarget)
 319         {
 320             hr = IDropTarget_DragEnter(dropTarget, &XDNDDataObject,
 321                                        MK_LBUTTON, pointl, &effect);
 322             if (SUCCEEDED(hr))
 323             {
 324                 if (effect != DROPEFFECT_NONE)
 325                 {
 326                     XDNDAccepted = TRUE;
 327                     TRACE("the application accepted the drop\n");
 328                 }
 329                 else
 330                     TRACE("the application refused the drop\n");
 331             }
 332             else
 333                 WARN("IDropTarget_DragEnter failed, error 0x%08X\n", hr);
 334             IDropTarget_Release(dropTarget);
 335         }
 336     }
 337     if (XDNDAccepted && XDNDLastTargetWnd == targetWindow)
 338     {
 339         /* If drag accepted notify OLE of DragOver */
 340         dropTarget = get_droptarget_pointer(XDNDLastDropTargetWnd);
 341         if (dropTarget)
 342         {
 343             hr = IDropTarget_DragOver(dropTarget, MK_LBUTTON, pointl, &effect);
 344             if (SUCCEEDED(hr))
 345                 XDNDDropEffect = effect;
 346             else
 347                 WARN("IDropTarget_DragOver failed, error 0x%08X\n", hr);
 348             IDropTarget_Release(dropTarget);
 349         }
 350     }
 351
 352     if (XDNDAccepted)
 353         accept = 1;
 354     if (GetWindowLongW( hWnd, GWL_EXSTYLE ) & WS_EX_ACCEPTFILES)
 355         accept = 1;
 356
 357     TRACE("action req: %ld accept(%d) at x(%d),y(%d)\n",
 358           event->data.l[4], accept, XDNDxy.x, XDNDxy.y);
 359
 360     /*
 361      * Let source know if we're accepting the drop by
 362      * sending a status message.
 363      */
 364     e.type = ClientMessage;
 365     e.display = event->display;
 366     e.window = event->data.l[0];
 367     e.message_type = x11drv_atom(XdndStatus);
 368     e.format = 32;
 369     e.data.l[0] = event->window;
 370     e.data.l[1] = accept;
 371     e.data.l[2] = 0; /* Empty Rect */
 372     e.data.l[3] = 0; /* Empty Rect */
 373     if (accept)
 374         e.data.l[4] = X11DRV_XDND_DROPEFFECTToXdndAction(effect);
 375     else
 376         e.data.l[4] = None;
 377     wine_tsx11_lock();
 378     XSendEvent(event->display, event->data.l[0], False, NoEventMask, (XEvent*)&e);
 379     wine_tsx11_unlock();
 380 }
 381
 382 /**************************************************************************
 383  * X11DRV_XDND_DropEvent
 384  *
 385  * Handle an XdndDrop event.
 386  */
 387 void X11DRV_XDND_DropEvent( HWND hWnd, XClientMessageEvent *event )
 388 {
 389     XClientMessageEvent e;
 390     IDropTarget *dropTarget;
 391
 392     TRACE("\n");
 393
 394     /* If we have a HDROP type we send a WM_ACCEPTFILES.*/
 395     if (GetWindowLongW( hWnd, GWL_EXSTYLE ) & WS_EX_ACCEPTFILES)
 396         X11DRV_XDND_SendDropFiles( hWnd );
 397
 398     /* Notify OLE of Drop */
 399     dropTarget = get_droptarget_pointer(XDNDLastDropTargetWnd);
 400     if (dropTarget)
 401     {
 402         HRESULT hr;
 403         POINTL pointl;
 404         DWORD effect = XDNDDropEffect;
 405
 406         pointl.x = XDNDxy.x;
 407         pointl.y = XDNDxy.y;
 408         hr = IDropTarget_Drop(dropTarget, &XDNDDataObject, MK_LBUTTON,
 409                               pointl, &effect);
 410         if (SUCCEEDED(hr))
 411         {
 412             if (effect != DROPEFFECT_NONE)
 413                 TRACE("drop succeeded\n");
 414             else
 415                 TRACE("the application refused the drop\n");
 416         }
 417         else
 418             WARN("drop failed, error 0x%08X\n", hr);
 419         IDropTarget_Release(dropTarget);
 420     }
 421
 422     X11DRV_XDND_FreeDragDropOp();
 423
 424     /* Tell the target we are finished. */
 425     memset(&e, 0, sizeof(e));
 426     e.type = ClientMessage;
 427     e.display = event->display;
 428     e.window = event->data.l[0];
 429     e.message_type = x11drv_atom(XdndFinished);
 430     e.format = 32;
 431     e.data.l[0] = event->window;
 432     wine_tsx11_lock();
 433     XSendEvent(event->display, event->data.l[0], False, NoEventMask, (XEvent*)&e);
 434     wine_tsx11_unlock();
 435 }
 436
 437 /**************************************************************************
 438  * X11DRV_XDND_LeaveEvent
 439  *
 440  * Handle an XdndLeave event.
 441  */
 442 void X11DRV_XDND_LeaveEvent( HWND hWnd, XClientMessageEvent *event )
 443 {
 444     IDropTarget *dropTarget;
 445
 446     TRACE("DND Operation canceled\n");
 447
 448     /* Notify OLE of DragLeave */
 449     dropTarget = get_droptarget_pointer(XDNDLastDropTargetWnd);
 450     if (dropTarget)
 451     {
 452         HRESULT hr = IDropTarget_DragLeave(dropTarget);
 453         if (FAILED(hr))
 454             WARN("IDropTarget_DragLeave failed, error 0x%08X\n", hr);
 455         IDropTarget_Release(dropTarget);
 456     }
 457
 458     X11DRV_XDND_FreeDragDropOp();
 459 }
 460
 461
 462 /**************************************************************************
 463  * X11DRV_XDND_ResolveProperty
 464  *
 465  * Resolve all MIME types to windows clipboard formats. All data is cached.
 466  */
 467 static void X11DRV_XDND_ResolveProperty(Display *display, Window xwin, Time tm,
 468                                         Atom *types, unsigned long *count)
 469 {
 470     unsigned int i, j;
 471     BOOL res;
 472     XEvent xe;
 473     Atom acttype;
 474     int actfmt;
 475     unsigned long bytesret, icount;
 476     int entries = 0;
 477     unsigned char* data = NULL;
 478     XDNDDATA *current, *next;
 479     BOOL haveHDROP = FALSE;
 480
 481     TRACE("count(%ld)\n", *count);
 482
 483     X11DRV_XDND_FreeDragDropOp(); /* Clear previously cached data */
 484
 485     for (i = 0; i < *count; i++)
 486     {
 487         TRACE("requesting atom %ld from xwin %ld\n", types[i], xwin);
 488
 489         if (types[i] == 0)
 490             continue;
 491
 492         wine_tsx11_lock();
 493         XConvertSelection(display, x11drv_atom(XdndSelection), types[i],
 494                           x11drv_atom(XdndTarget), xwin, /*tm*/CurrentTime);
 495         wine_tsx11_unlock();
 496
 497         /*
 498          * Wait for SelectionNotify
 499          */
 500         for (j = 0; j < SELECTION_RETRIES; j++)
 501         {
 502             wine_tsx11_lock();
 503             res = XCheckTypedWindowEvent(display, xwin, SelectionNotify, &xe);
 504             wine_tsx11_unlock();
 505             if (res && xe.xselection.selection == x11drv_atom(XdndSelection)) break;
 506
 507             usleep(SELECTION_WAIT);
 508         }
 509
 510         if (xe.xselection.property == None)
 511             continue;
 512
 513         wine_tsx11_lock();
 514         XGetWindowProperty(display, xwin, x11drv_atom(XdndTarget), 0, 65535, FALSE,
 515             AnyPropertyType, &acttype, &actfmt, &icount, &bytesret, &data);
 516         wine_tsx11_unlock();
 517
 518         entries += X11DRV_XDND_MapFormat(types[i], data, get_property_size( actfmt, icount ));
 519         wine_tsx11_lock();
 520         XFree(data);
 521         wine_tsx11_unlock();
 522     }
 523
 524     /* On Windows when there is a CF_HDROP, there are no other CF_ formats.
 525      * foobar2000 relies on this (spaces -> %20's without it).
 526      */
 527     LIST_FOR_EACH_ENTRY(current, &xdndData, XDNDDATA, entry)
 528     {
 529         if (current->cf_win == CF_HDROP)
 530         {
 531             haveHDROP = TRUE;
 532             break;
 533         }
 534     }
 535     if (haveHDROP)
 536     {
 537         LIST_FOR_EACH_ENTRY_SAFE(current, next, &xdndData, XDNDDATA, entry)
 538         {
 539             if (current->cf_win != CF_HDROP && current->cf_win < CF_MAX)
 540             {
 541                 list_remove(&current->entry);
 542                 HeapFree(GetProcessHeap(), 0, current->data);
 543                 HeapFree(GetProcessHeap(), 0, current);
 544                 --entries;
 545             }
 546         }
 547     }
 548
 549     *count = entries;
 550 }
 551
 552
 553 /**************************************************************************
 554  * X11DRV_XDND_InsertXDNDData
 555  *
 556  * Cache available XDND property
 557  */
 558 static void X11DRV_XDND_InsertXDNDData(int property, int format, void* data, unsigned int len)
 559 {
 560     LPXDNDDATA current = HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY, sizeof(XDNDDATA));
 561
 562     if (current)
 563     {
 564         EnterCriticalSection(&xdnd_cs);
 565         current->cf_xdnd = property;
 566         current->cf_win = format;
 567         current->data = data;
 568         current->size = len;
 569         list_add_tail(&xdndData, &current->entry);
 570         LeaveCriticalSection(&xdnd_cs);
 571     }
 572 }
 573
 574
 575 /**************************************************************************
 576  * X11DRV_XDND_MapFormat
 577  *
 578  * Map XDND MIME format to windows clipboard format.
 579  */
 580 static int X11DRV_XDND_MapFormat(unsigned int property, unsigned char *data, int len)
 581 {
 582     void* xdata;
 583     int count = 0;
 584
 585     TRACE("%d: %s\n", property, data);
 586
 587     /* Always include the raw type */
 588     xdata = HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY, len);
 589     memcpy(xdata, data, len);
 590     X11DRV_XDND_InsertXDNDData(property, property, xdata, len);
 591     count++;
 592
 593     if (property == x11drv_atom(text_uri_list))
 594         count += X11DRV_XDND_DeconstructTextURIList(property, data, len);
 595     else if (property == x11drv_atom(text_plain))
 596         count += X11DRV_XDND_DeconstructTextPlain(property, data, len);
 597     else if (property == x11drv_atom(text_html))
 598         count += X11DRV_XDND_DeconstructTextHTML(property, data, len);
 599
 600     return count;
 601 }
 602
 603
 604 /**************************************************************************
 605  * X11DRV_XDND_DeconstructTextURIList
 606  *
 607  * Interpret text/uri-list data and add records to <dndfmt> linked list
 608  */
 609 static int X11DRV_XDND_DeconstructTextURIList(int property, void* data, int len)
 610 {
 611     char *uriList = data;
 612     char *uri;
 613     WCHAR *path;
 614
 615     WCHAR *out = NULL;
 616     int size = 0;
 617     int capacity = 4096;
 618
 619     int count = 0;
 620     int start = 0;
 621     int end = 0;
 622
 623     out = HeapAlloc(GetProcessHeap(), 0, capacity * sizeof(WCHAR));
 624     if (out == NULL)
 625         return 0;
 626
 627     while (end < len)
 628     {
 629         while (end < len && uriList[end] != '\r')
 630             ++end;
 631         if (end < (len - 1) && uriList[end+1] != '\n')
 632         {
 633             WARN("URI list line doesn't end in \\r\\n\n");
 634             break;
 635         }
 636
 637         uri = HeapAlloc(GetProcessHeap(), 0, end - start + 1);
 638         if (uri == NULL)
 639             break;
 640         lstrcpynA(uri, &uriList[start], end - start + 1);
 641         path = X11DRV_XDND_URIToDOS(uri);
 642         TRACE("converted URI %s to DOS path %s\n", debugstr_a(uri), debugstr_w(path));
 643         HeapFree(GetProcessHeap(), 0, uri);
 644
 645         if (path)
 646         {
 647             int pathSize = strlenW(path) + 1;
 648             if (pathSize > capacity-size)
 649             {
 650                 capacity = 2*capacity + pathSize;
 651                 out = HeapReAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY, out, (capacity + 1)*sizeof(WCHAR));
 652                 if (out == NULL)
 653                     goto done;
 654             }
 655             memcpy(&out[size], path, pathSize * sizeof(WCHAR));
 656             size += pathSize;
 657         done:
 658             HeapFree(GetProcessHeap(), 0, path);
 659             if (out == NULL)
 660                 break;
 661         }
 662
 663         start = end + 2;
 664         end = start;
 665     }
 666     if (out && end >= len)
 667     {
 668         DROPFILES *dropFiles;
 669         dropFiles = HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY, sizeof(DROPFILES) + (size + 1)*sizeof(WCHAR));
 670         if (dropFiles)
 671         {
 672             dropFiles->pFiles = sizeof(DROPFILES);
 673             dropFiles->pt.x = XDNDxy.x;
 674             dropFiles->pt.y = XDNDxy.y;
 675             dropFiles->fNC = 0;
 676             dropFiles->fWide = TRUE;
 677             out[size] = '\0';
 678             memcpy(((char*)dropFiles) + dropFiles->pFiles, out, (size + 1)*sizeof(WCHAR));
 679             X11DRV_XDND_InsertXDNDData(property, CF_HDROP, dropFiles, sizeof(DROPFILES) + (size + 1)*sizeof(WCHAR));
 680             count = 1;
 681         }
 682     }
 683     HeapFree(GetProcessHeap(), 0, out);
 684     return count;
 685 }
 686
 687
 688 /**************************************************************************
 689  * X11DRV_XDND_DeconstructTextPlain
 690  *
 691  * Interpret text/plain Data and add records to <dndfmt> linked list
 692  */
 693 static int X11DRV_XDND_DeconstructTextPlain(int property, void* data, int len)
 694 {
 695     char* dostext;
 696
 697     /* Always supply plain text */
 698     X11DRV_XDND_UnixToDos(&dostext, data, len);
 699     X11DRV_XDND_InsertXDNDData(property, CF_TEXT, dostext, strlen(dostext));
 700
 701     TRACE("CF_TEXT (%d): %s\n", CF_TEXT, dostext);
 702
 703     return 1;
 704 }
 705
 706
 707 /**************************************************************************
 708  * X11DRV_XDND_DeconstructTextHTML
 709  *
 710  * Interpret text/html data and add records to <dndfmt> linked list
 711  */
 712 static int X11DRV_XDND_DeconstructTextHTML(int property, void* data, int len)
 713 {
 714     char* dostext;
 715
 716     X11DRV_XDND_UnixToDos(&dostext, data, len);
 717
 718     X11DRV_XDND_InsertXDNDData(property,
 719         RegisterClipboardFormatA("UniformResourceLocator"), dostext, strlen(dostext));
 720
 721     TRACE("UniformResourceLocator: %s\n", dostext);
 722
 723     return 1;
 724 }
 725
 726
 727 /**************************************************************************
 728  * X11DRV_XDND_SendDropFiles
 729  */
 730 static void X11DRV_XDND_SendDropFiles(HWND hwnd)
 731 {
 732     LPXDNDDATA current = NULL;
 733     BOOL found = FALSE;
 734
 735     EnterCriticalSection(&xdnd_cs);
 736
 737     /* Find CF_HDROP type if any */
 738     LIST_FOR_EACH_ENTRY(current, &xdndData, XDNDDATA, entry)
 739     {
 740         if (current->cf_win == CF_HDROP)
 741         {
 742             found = TRUE;
 743             break;
 744         }
 745     }
 746
 747     if (found)
 748     {
 749         DROPFILES *lpDrop = current->data;
 750
 751         if (lpDrop)
 752         {
 753             lpDrop->pt.x = XDNDxy.x;
 754             lpDrop->pt.y = XDNDxy.y;
 755
 756             TRACE("Sending WM_DROPFILES: hWnd(0x%p) %p(%s)\n", hwnd,
 757                 ((char*)lpDrop) + lpDrop->pFiles, debugstr_w((WCHAR*)(((char*)lpDrop) + lpDrop->pFiles)));
 758
 759             PostMessageW(hwnd, WM_DROPFILES, (WPARAM)lpDrop, 0L);
 760         }
 761     }
 762
 763     LeaveCriticalSection(&xdnd_cs);
 764 }
 765
 766
 767 /**************************************************************************
 768  * X11DRV_XDND_FreeDragDropOp
 769  */
 770 static void X11DRV_XDND_FreeDragDropOp(void)
 771 {
 772     LPXDNDDATA next;
 773     LPXDNDDATA current;
 774
 775     TRACE("\n");
 776
 777     EnterCriticalSection(&xdnd_cs);
 778
 779     /** Free data cache */
 780     LIST_FOR_EACH_ENTRY_SAFE(current, next, &xdndData, XDNDDATA, entry)
 781     {
 782         list_remove(&current->entry);
 783         HeapFree(GetProcessHeap(), 0, current);
 784     }
 785
 786     XDNDxy.x = XDNDxy.y = 0;
 787     XDNDLastTargetWnd = NULL;
 788     XDNDLastDropTargetWnd = NULL;
 789     XDNDAccepted = FALSE;
 790
 791     LeaveCriticalSection(&xdnd_cs);
 792 }
 793
 794
 795
 796 /**************************************************************************
 797  * X11DRV_XDND_UnixToDos
 798  */
 799 static unsigned int X11DRV_XDND_UnixToDos(char** lpdest, char* lpsrc, int len)
 800 {
 801     int i;
 802     unsigned int destlen, lines;
 803
 804     for (i = 0, lines = 0; i <= len; i++)
 805     {
 806         if (lpsrc[i] == '\n')
 807             lines++;
 808     }
 809
 810     destlen = len + lines + 1;
 811
 812     if (lpdest)
 813     {
 814         char* lpstr = HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY, destlen);
 815         for (i = 0, lines = 0; i <= len; i++)
 816         {
 817             if (lpsrc[i] == '\n')
 818                 lpstr[++lines + i] = '\r';
 819             lpstr[lines + i] = lpsrc[i];
 820         }
 821
 822         *lpdest = lpstr;
 823     }
 824
 825     return lines;
 826 }
 827
 828
 829 /**************************************************************************
 830  * X11DRV_XDND_URIToDOS
 831  */
 832 static WCHAR* X11DRV_XDND_URIToDOS(char *encodedURI)
 833 {
 834     WCHAR *ret = NULL;
 835     int i;
 836     int j = 0;
 837     char *uri = HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY, strlen(encodedURI) + 1);
 838     if (uri == NULL)
 839         return NULL;
 840     for (i = 0; encodedURI[i]; ++i)
 841     {
 842         if (encodedURI[i] == '%')
 843         {
 844             if (encodedURI[i+1] && encodedURI[i+2])
 845             {
 846                 char buffer[3];
 847                 int number;
 848                 buffer[0] = encodedURI[i+1];
 849                 buffer[1] = encodedURI[i+2];
 850                 buffer[2] = '\0';
 851                 sscanf(buffer, "%x", &number);
 852                 uri[j++] = number;
 853                 i += 2;
 854             }
 855             else
 856             {
 857                 WARN("invalid URI encoding in %s\n", debugstr_a(encodedURI));
 858                 HeapFree(GetProcessHeap(), 0, uri);
 859                 return NULL;
 860             }
 861         }
 862         else
 863             uri[j++] = encodedURI[i];
 864     }
 865
 866     /* Read http://www.freedesktop.org/wiki/Draganddropwarts and cry... */
 867     if (strncmp(uri, "file:/", 6) == 0)
 868     {
 869         if (uri[6] == '/')
 870         {
 871             if (uri[7] == '/')
 872             {
 873                 /* file:///path/to/file (nautilus, thunar) */
 874                 ret = wine_get_dos_file_name(&uri[7]);
 875             }
 876             else if (uri[7])
 877             {
 878                 /* file://hostname/path/to/file (X file drag spec) */
 879                 char hostname[256];
 880                 char *path = strchr(&uri[7], '/');
 881                 if (path)
 882                 {
 883                     *path = '\0';
 884                     if (strcmp(&uri[7], "localhost") == 0)
 885                     {
 886                         *path = '/';
 887                         ret = wine_get_dos_file_name(path);
 888                     }
 889                     else if (gethostname(hostname, sizeof(hostname)) == 0)
 890                     {
 891                         if (strcmp(hostname, &uri[7]) == 0)
 892                         {
 893                             *path = '/';
 894                             ret = wine_get_dos_file_name(path);
 895                         }
 896                     }
 897                 }
 898             }
 899         }
 900         else if (uri[6])
 901         {
 902             /* file:/path/to/file (konqueror) */
 903             ret = wine_get_dos_file_name(&uri[5]);
 904         }
 905     }
 906     HeapFree(GetProcessHeap(), 0, uri);
 907     return ret;
 908 }
 909
 910
 911 /**************************************************************************
 912  * X11DRV_XDND_DescribeClipboardFormat
 913  */
 914 static void X11DRV_XDND_DescribeClipboardFormat(int cfFormat, char *buffer, int size)
 915 {
 916 #define D(x) case x: lstrcpynA(buffer, #x, size); return;
 917     switch (cfFormat)
 918     {
 919         D(CF_TEXT)
 920         D(CF_BITMAP)
 921         D(CF_METAFILEPICT)
 922         D(CF_SYLK)
 923         D(CF_DIF)
 924         D(CF_TIFF)
 925         D(CF_OEMTEXT)
 926         D(CF_DIB)
 927         D(CF_PALETTE)
 928         D(CF_PENDATA)
 929         D(CF_RIFF)
 930         D(CF_WAVE)
 931         D(CF_UNICODETEXT)
 932         D(CF_ENHMETAFILE)
 933         D(CF_HDROP)
 934         D(CF_LOCALE)
 935         D(CF_DIBV5)
 936     }
 937 #undef D
 938
 939     if (CF_PRIVATEFIRST <= cfFormat && cfFormat <= CF_PRIVATELAST)
 940     {
 941         lstrcpynA(buffer, "some private object", size);
 942         return;
 943     }
 944     if (CF_GDIOBJFIRST <= cfFormat && cfFormat <= CF_GDIOBJLAST)
 945     {
 946         lstrcpynA(buffer, "some GDI object", size);
 947         return;
 948     }
 949
 950     GetClipboardFormatNameA(cfFormat, buffer, size);
 951 }
 952
 953
 954 /* The IDataObject singleton we feed to OLE follows */
 955
 956 static HRESULT WINAPI XDNDDATAOBJECT_QueryInterface(IDataObject *dataObject,
 957                                                     REFIID riid, void **ppvObject)
 958 {
 959     TRACE("(%p, %s, %p)\n", dataObject, debugstr_guid(riid), ppvObject);
 960     if (IsEqualIID(riid, &IID_IUnknown) || IsEqualIID(riid, &IID_IDataObject))
 961     {
 962         *ppvObject = dataObject;
 963         IDataObject_AddRef(dataObject);
 964         return S_OK;
 965     }
 966     *ppvObject = NULL;
 967     return E_NOINTERFACE;
 968 }
 969
 970 static ULONG WINAPI XDNDDATAOBJECT_AddRef(IDataObject *dataObject)
 971 {
 972     TRACE("(%p)\n", dataObject);
 973     return 2;
 974 }
 975
 976 static ULONG WINAPI XDNDDATAOBJECT_Release(IDataObject *dataObject)
 977 {
 978     TRACE("(%p)\n", dataObject);
 979     return 1;
 980 }
 981
 982 static HRESULT WINAPI XDNDDATAOBJECT_GetData(IDataObject *dataObject,
 983                                              FORMATETC *formatEtc,
 984                                              STGMEDIUM *pMedium)
 985 {
 986     HRESULT hr;
 987     char formatDesc[1024];
 988
 989     TRACE("(%p, %p, %p)\n", dataObject, formatEtc, pMedium);
 990     X11DRV_XDND_DescribeClipboardFormat(formatEtc->cfFormat,
 991         formatDesc, sizeof(formatDesc));
 992     TRACE("application is looking for %s\n", formatDesc);
 993
 994     hr = IDataObject_QueryGetData(dataObject, formatEtc);
 995     if (SUCCEEDED(hr))
 996     {
 997         XDNDDATA *current;
 998         LIST_FOR_EACH_ENTRY(current, &xdndData, XDNDDATA, entry)
 999         {
1000             if (current->cf_win == formatEtc->cfFormat)
1001             {
1002                 pMedium->tymed = TYMED_HGLOBAL;
1003                 pMedium->u.hGlobal = HeapAlloc(GetProcessHeap(), 0, current->size);
1004                 if (pMedium->u.hGlobal == NULL)
1005                     return E_OUTOFMEMORY;
1006                 memcpy(pMedium->u.hGlobal, current->data, current->size);
1007                 pMedium->pUnkForRelease = 0;
1008                 return S_OK;
1009             }
1010         }
1011     }
1012     return hr;
1013 }
1014
1015 static HRESULT WINAPI XDNDDATAOBJECT_GetDataHere(IDataObject *dataObject,
1016                                                  FORMATETC *formatEtc,
1017                                                  STGMEDIUM *pMedium)
1018 {
1019     FIXME("(%p, %p, %p): stub\n", dataObject, formatEtc, pMedium);
1020     return DATA_E_FORMATETC;
1021 }
1022
1023 static HRESULT WINAPI XDNDDATAOBJECT_QueryGetData(IDataObject *dataObject,
1024                                                   FORMATETC *formatEtc)
1025 {
1026     char formatDesc[1024];
1027     XDNDDATA *current;
1028
1029     TRACE("(%p, %p={.tymed=0x%x, .dwAspect=%d, .cfFormat=%d}\n",
1030         dataObject, formatEtc, formatEtc->tymed, formatEtc->dwAspect, formatEtc->cfFormat);
1031     X11DRV_XDND_DescribeClipboardFormat(formatEtc->cfFormat, formatDesc, sizeof(formatDesc));
1032
1033     if (formatEtc->tymed && !(formatEtc->tymed & TYMED_HGLOBAL))
1034     {
1035         FIXME("only HGLOBAL medium types supported right now\n");
1036         return DV_E_TYMED;
1037     }
1038     if (formatEtc->dwAspect != DVASPECT_CONTENT)
1039     {
1040         FIXME("only the content aspect is supported right now\n");
1041         return E_NOTIMPL;
1042     }
1043
1044     LIST_FOR_EACH_ENTRY(current, &xdndData, XDNDDATA, entry)
1045     {
1046         if (current->cf_win == formatEtc->cfFormat)
1047         {
1048             TRACE("application found %s\n", formatDesc);
1049             return S_OK;
1050         }
1051     }
1052     TRACE("application didn't find %s\n", formatDesc);
1053     return DV_E_FORMATETC;
1054 }
1055
1056 static HRESULT WINAPI XDNDDATAOBJECT_GetCanonicalFormatEtc(IDataObject *dataObject,
1057                                                            FORMATETC *formatEtc,
1058                                                            FORMATETC *formatEtcOut)
1059 {
1060     FIXME("(%p, %p, %p): stub\n", dataObject, formatEtc, formatEtcOut);
1061     formatEtcOut->ptd = NULL;
1062     return E_NOTIMPL;
1063 }
1064
1065 static HRESULT WINAPI XDNDDATAOBJECT_SetData(IDataObject *dataObject,
1066                                              FORMATETC *formatEtc,
1067                                              STGMEDIUM *pMedium, BOOL fRelease)
1068 {
1069     FIXME("(%p, %p, %p, %s): stub\n", dataObject, formatEtc,
1070         pMedium, fRelease?"TRUE":"FALSE");
1071     return E_NOTIMPL;
1072 }
1073
1074 static HRESULT WINAPI XDNDDATAOBJECT_EnumFormatEtc(IDataObject *dataObject,
1075                                                    DWORD dwDirection,
1076                                                    IEnumFORMATETC **ppEnumFormatEtc)
1077 {
1078     DWORD count;
1079     FORMATETC *formats;
1080
1081     TRACE("(%p, %u, %p)\n", dataObject, dwDirection, ppEnumFormatEtc);
1082
1083     if (dwDirection != DATADIR_GET)
1084     {
1085         FIXME("only the get direction is implemented\n");
1086         return E_NOTIMPL;
1087     }
1088
1089     count = list_count(&xdndData);
1090     formats = HeapAlloc(GetProcessHeap(), 0, count * sizeof(FORMATETC));
1091     if (formats)
1092     {
1093         XDNDDATA *current;
1094         DWORD i = 0;
1095         HRESULT hr;
1096         LIST_FOR_EACH_ENTRY(current, &xdndData, XDNDDATA, entry)
1097         {
1098             formats[i].cfFormat = current->cf_win;
1099             formats[i].ptd = NULL;
1100             formats[i].dwAspect = DVASPECT_CONTENT;
1101             formats[i].lindex = -1;
1102             formats[i].tymed = TYMED_HGLOBAL;
1103             i++;
1104         }
1105         hr = SHCreateStdEnumFmtEtc(count, formats, ppEnumFormatEtc);
1106         HeapFree(GetProcessHeap(), 0, formats);
1107         return hr;
1108     }
1109     else
1110         return E_OUTOFMEMORY;
1111 }
1112
1113 static HRESULT WINAPI XDNDDATAOBJECT_DAdvise(IDataObject *dataObject,
1114                                              FORMATETC *formatEtc, DWORD advf,
1115                                              IAdviseSink *adviseSink,
1116                                              DWORD *pdwConnection)
1117 {
1118     FIXME("(%p, %p, %u, %p, %p): stub\n", dataObject, formatEtc, advf,
1119         adviseSink, pdwConnection);
1120     return OLE_E_ADVISENOTSUPPORTED;
1121 }
1122
1123 static HRESULT WINAPI XDNDDATAOBJECT_DUnadvise(IDataObject *dataObject,
1124                                                DWORD dwConnection)
1125 {
1126     FIXME("(%p, %u): stub\n", dataObject, dwConnection);
1127     return OLE_E_ADVISENOTSUPPORTED;
1128 }
1129
1130 static HRESULT WINAPI XDNDDATAOBJECT_EnumDAdvise(IDataObject *dataObject,
1131                                                  IEnumSTATDATA **pEnumAdvise)
1132 {
1133     FIXME("(%p, %p): stub\n", dataObject, pEnumAdvise);
1134     return OLE_E_ADVISENOTSUPPORTED;
1135 }
1136
1137 static IDataObjectVtbl xdndDataObjectVtbl =
1138 {
1139     XDNDDATAOBJECT_QueryInterface,
1140     XDNDDATAOBJECT_AddRef,
1141     XDNDDATAOBJECT_Release,
1142     XDNDDATAOBJECT_GetData,
1143     XDNDDATAOBJECT_GetDataHere,
1144     XDNDDATAOBJECT_QueryGetData,
1145     XDNDDATAOBJECT_GetCanonicalFormatEtc,
1146     XDNDDATAOBJECT_SetData,
1147     XDNDDATAOBJECT_EnumFormatEtc,
1148     XDNDDATAOBJECT_DAdvise,
1149     XDNDDATAOBJECT_DUnadvise,
1150     XDNDDATAOBJECT_EnumDAdvise
1151 };
1152
1153 static IDataObject XDNDDataObject = { &xdndDataObjectVtbl };