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Sweden-Number/dlls/winex11.drv/xdnd.c

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/*
* XDND handler code
*
* Copyright 2003 Ulrich Czekalla
* Copyright 2007 Damjan Jovanovic
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
*/
#include "config.h"
#include "wine/port.h"
#include <string.h>
#ifdef HAVE_UNISTD_H
# include <unistd.h>
#endif
#include <stdarg.h>
#include <stdio.h>
#include "windef.h"
#include "winbase.h"
#include "wingdi.h"
#include "winuser.h"
#include "x11drv.h"
#include "shlobj.h" /* DROPFILES */
#include "wine/unicode.h"
#include "wine/debug.h"
WINE_DEFAULT_DEBUG_CHANNEL(xdnd);
/* Maximum wait time for selection notify */
#define SELECTION_RETRIES 500 /* wait for .1 seconds */
#define SELECTION_WAIT 1000 /* us */
typedef struct tagXDNDDATA
{
int cf_win;
Atom cf_xdnd;
void *data;
unsigned int size;
struct tagXDNDDATA *next;
} XDNDDATA, *LPXDNDDATA;
static LPXDNDDATA XDNDData = NULL;
static POINT XDNDxy = { 0, 0 };
static void X11DRV_XDND_InsertXDNDData(int property, int format, void* data, unsigned int len);
static int X11DRV_XDND_DeconstructTextURIList(int property, void* data, int len);
static int X11DRV_XDND_DeconstructTextPlain(int property, void* data, int len);
static int X11DRV_XDND_DeconstructTextHTML(int property, void* data, int len);
static int X11DRV_XDND_MapFormat(unsigned int property, unsigned char *data, int len);
static void X11DRV_XDND_ResolveProperty(Display *display, Window xwin, Time tm,
Atom *types, unsigned long *count);
static void X11DRV_XDND_SendDropFiles(HWND hwnd);
static void X11DRV_XDND_FreeDragDropOp(void);
static unsigned int X11DRV_XDND_UnixToDos(char** lpdest, char* lpsrc, int len);
static WCHAR* X11DRV_XDND_URIToDOS(char *encodedURI);
static DROPFILES* X11DRV_XDND_BuildDropFiles(char* filename, unsigned int len, POINT pt);
static CRITICAL_SECTION xdnd_cs;
static CRITICAL_SECTION_DEBUG critsect_debug =
{
0, 0, &xdnd_cs,
{ &critsect_debug.ProcessLocksList, &critsect_debug.ProcessLocksList },
0, 0, { (DWORD_PTR)(__FILE__ ": xdnd_cs") }
};
static CRITICAL_SECTION xdnd_cs = { &critsect_debug, -1, 0, 0, 0, 0 };
/**************************************************************************
* X11DRV_XDND_EnterEvent
*
* Handle an XdndEnter event.
*/
void X11DRV_XDND_EnterEvent( HWND hWnd, XClientMessageEvent *event )
{
Atom *xdndtypes;
unsigned long count = 0;
TRACE("ver(%ld) check-XdndTypeList(%ld) data=%ld,%ld,%ld,%ld,%ld\n",
(event->data.l[1] & 0xFF000000) >> 24, (event->data.l[1] & 1),
event->data.l[0], event->data.l[1], event->data.l[2],
event->data.l[3], event->data.l[4]);
/* If the source supports more than 3 data types we retrieve
* the entire list. */
if (event->data.l[1] & 1)
{
Atom acttype;
int actfmt;
unsigned long bytesret;
/* Request supported formats from source window */
wine_tsx11_lock();
XGetWindowProperty(event->display, event->data.l[0], x11drv_atom(XdndTypeList),
0, 65535, FALSE, AnyPropertyType, &acttype, &actfmt, &count,
&bytesret, (unsigned char**)&xdndtypes);
wine_tsx11_unlock();
}
else
{
count = 3;
xdndtypes = (Atom*) &event->data.l[2];
}
if (TRACE_ON(xdnd))
{
unsigned int i = 0;
wine_tsx11_lock();
for (; i < count; i++)
{
if (xdndtypes[i] != 0)
{
char * pn = XGetAtomName(event->display, xdndtypes[i]);
TRACE("XDNDEnterAtom %ld: %s\n", xdndtypes[i], pn);
XFree(pn);
}
}
wine_tsx11_unlock();
}
/* Do a one-time data read and cache results */
X11DRV_XDND_ResolveProperty(event->display, event->window,
event->data.l[1], xdndtypes, &count);
if (event->data.l[1] & 1)
XFree(xdndtypes);
}
/**************************************************************************
* X11DRV_XDND_PositionEvent
*
* Handle an XdndPosition event.
*/
void X11DRV_XDND_PositionEvent( HWND hWnd, XClientMessageEvent *event )
{
XClientMessageEvent e;
int accept = 0; /* Assume we're not accepting */
XDNDxy.x = event->data.l[2] >> 16;
XDNDxy.y = event->data.l[2] & 0xFFFF;
/* FIXME: Notify OLE of DragEnter. Result determines if we accept */
if (GetWindowLongW( hWnd, GWL_EXSTYLE ) & WS_EX_ACCEPTFILES)
accept = 1;
TRACE("action req: %ld accept(%d) at x(%d),y(%d)\n",
event->data.l[4], accept, XDNDxy.x, XDNDxy.y);
/*
* Let source know if we're accepting the drop by
* sending a status message.
*/
e.type = ClientMessage;
e.display = event->display;
e.window = event->data.l[0];
e.message_type = x11drv_atom(XdndStatus);
e.format = 32;
e.data.l[0] = event->window;
e.data.l[1] = accept;
e.data.l[2] = 0; /* Empty Rect */
e.data.l[3] = 0; /* Empty Rect */
if (accept)
e.data.l[4] = event->data.l[4];
else
e.data.l[4] = None;
wine_tsx11_lock();
XSendEvent(event->display, event->data.l[0], False, NoEventMask, (XEvent*)&e);
wine_tsx11_unlock();
/* FIXME: if drag accepted notify OLE of DragOver */
}
/**************************************************************************
* X11DRV_XDND_DropEvent
*
* Handle an XdndDrop event.
*/
void X11DRV_XDND_DropEvent( HWND hWnd, XClientMessageEvent *event )
{
XClientMessageEvent e;
TRACE("\n");
/* If we have a HDROP type we send a WM_ACCEPTFILES.*/
if (GetWindowLongW( hWnd, GWL_EXSTYLE ) & WS_EX_ACCEPTFILES)
X11DRV_XDND_SendDropFiles( hWnd );
/* FIXME: Notify OLE of Drop */
X11DRV_XDND_FreeDragDropOp();
/* Tell the target we are finished. */
memset(&e, 0, sizeof(e));
e.type = ClientMessage;
e.display = event->display;
e.window = event->data.l[0];
e.message_type = x11drv_atom(XdndFinished);
e.format = 32;
e.data.l[0] = event->window;
wine_tsx11_lock();
XSendEvent(event->display, event->data.l[0], False, NoEventMask, (XEvent*)&e);
wine_tsx11_unlock();
}
/**************************************************************************
* X11DRV_XDND_LeaveEvent
*
* Handle an XdndLeave event.
*/
void X11DRV_XDND_LeaveEvent( HWND hWnd, XClientMessageEvent *event )
{
TRACE("DND Operation canceled\n");
X11DRV_XDND_FreeDragDropOp();
/* FIXME: Notify OLE of DragLeave */
}
/**************************************************************************
* X11DRV_XDND_ResolveProperty
*
* Resolve all MIME types to windows clipboard formats. All data is cached.
*/
static void X11DRV_XDND_ResolveProperty(Display *display, Window xwin, Time tm,
Atom *types, unsigned long *count)
{
unsigned int i, j;
BOOL res;
XEvent xe;
Atom acttype;
int actfmt;
unsigned long bytesret, icount;
int entries = 0;
unsigned char* data = NULL;
TRACE("count(%ld)\n", *count);
X11DRV_XDND_FreeDragDropOp(); /* Clear previously cached data */
for (i = 0; i < *count; i++)
{
TRACE("requesting atom %ld from xwin %ld\n", types[i], xwin);
if (types[i] == 0)
continue;
wine_tsx11_lock();
XConvertSelection(display, x11drv_atom(XdndSelection), types[i],
x11drv_atom(XdndTarget), xwin, /*tm*/CurrentTime);
wine_tsx11_unlock();
/*
* Wait for SelectionNotify
*/
for (j = 0; j < SELECTION_RETRIES; j++)
{
wine_tsx11_lock();
res = XCheckTypedWindowEvent(display, xwin, SelectionNotify, &xe);
wine_tsx11_unlock();
if (res && xe.xselection.selection == x11drv_atom(XdndSelection)) break;
usleep(SELECTION_WAIT);
}
if (xe.xselection.property == None)
continue;
wine_tsx11_lock();
XGetWindowProperty(display, xwin, x11drv_atom(XdndTarget), 0, 65535, FALSE,
AnyPropertyType, &acttype, &actfmt, &icount, &bytesret, &data);
wine_tsx11_unlock();
entries += X11DRV_XDND_MapFormat(types[i], data, icount * (actfmt / 8));
wine_tsx11_lock();
XFree(data);
wine_tsx11_unlock();
}
*count = entries;
}
/**************************************************************************
* X11DRV_XDND_InsertXDNDData
*
* Cache available XDND property
*/
static void X11DRV_XDND_InsertXDNDData(int property, int format, void* data, unsigned int len)
{
LPXDNDDATA current = HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY, sizeof(XDNDDATA));
if (current)
{
EnterCriticalSection(&xdnd_cs);
current->next = XDNDData;
current->cf_xdnd = property;
current->cf_win = format;
current->data = data;
current->size = len;
XDNDData = current;
LeaveCriticalSection(&xdnd_cs);
}
}
/**************************************************************************
* X11DRV_XDND_MapFormat
*
* Map XDND MIME format to windows clipboard format.
*/
static int X11DRV_XDND_MapFormat(unsigned int property, unsigned char *data, int len)
{
void* xdata;
int count = 0;
TRACE("%d: %s\n", property, data);
/* Always include the raw type */
xdata = HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY, len);
memcpy(xdata, data, len);
X11DRV_XDND_InsertXDNDData(property, property, xdata, len);
count++;
if (property == x11drv_atom(text_uri_list))
count += X11DRV_XDND_DeconstructTextURIList(property, data, len);
else if (property == x11drv_atom(text_plain))
count += X11DRV_XDND_DeconstructTextPlain(property, data, len);
else if (property == x11drv_atom(text_html))
count += X11DRV_XDND_DeconstructTextHTML(property, data, len);
return count;
}
/**************************************************************************
* X11DRV_XDND_DeconstructTextURIList
*
* Interpret text/uri-list data and add records to <dndfmt> linked list
*/
static int X11DRV_XDND_DeconstructTextURIList(int property, void* data, int len)
{
char *uriList = (char*) data;
char *uri;
WCHAR *path;
char *out = NULL;
int size = 0;
int capacity = 4096;
int count = 0;
int start = 0;
int end = 0;
out = HeapAlloc(GetProcessHeap(), 0, capacity);
if (out == NULL)
return 0;
while (end < len)
{
while (end < len && uriList[end] != '\r')
++end;
if (end == len)
break;
if (uriList[end+1] != '\n')
{
WARN("URI list line doesn't end in \\r\\n\n");
break;
}
uri = HeapAlloc(GetProcessHeap(), 0, end - start + 1);
if (uri == NULL)
break;
lstrcpynA(uri, &uriList[start], end - start + 1);
path = X11DRV_XDND_URIToDOS(uri);
TRACE("converted URI %s to DOS path %s\n", debugstr_a(uri), debugstr_w(path));
HeapFree(GetProcessHeap(), 0, uri);
if (path)
{
int pathSize = strlenW(path) + 1;
if (pathSize > capacity-size)
{
capacity = 2*capacity + pathSize;
out = HeapReAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY, out, capacity + 1);
if (out == NULL)
goto done;
}
WideCharToMultiByte(CP_ACP, 0, path, -1, &out[size], pathSize, 0, 0);
size += pathSize;
done:
HeapFree(GetProcessHeap(), 0, path);
if (out == NULL)
break;
}
start = end + 2;
end = start;
}
if (out && end == len)
{
DROPFILES *dropFiles;
dropFiles = HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY, sizeof(DROPFILES) + size + 1);
if (dropFiles)
{
dropFiles->pFiles = sizeof(DROPFILES);
dropFiles->pt.x = XDNDxy.x;
dropFiles->pt.y = XDNDxy.y;
dropFiles->fNC = 0;
dropFiles->fWide = FALSE;
out[size] = '\0';
memcpy(((char*)dropFiles) + dropFiles->pFiles, out, size + 1);
X11DRV_XDND_InsertXDNDData(property, CF_HDROP, dropFiles, sizeof(DROPFILES) + size + 1);
count = 1;
}
}
HeapFree(GetProcessHeap(), 0, out);
return count;
}
/**************************************************************************
* X11DRV_XDND_DeconstructTextPlain
*
* Interpret text/plain Data and add records to <dndfmt> linked list
*/
static int X11DRV_XDND_DeconstructTextPlain(int property, void* data, int len)
{
char *p = (char*) data;
char* dostext;
int count = 0;
/* Always suppply plain text */
X11DRV_XDND_UnixToDos(&dostext, (char*)data, len);
X11DRV_XDND_InsertXDNDData(property, CF_TEXT, dostext, strlen(dostext));
count++;
TRACE("CF_TEXT (%d): %s\n", CF_TEXT, dostext);
/* Check for additional mappings */
while (*p != '\0' && *p != ':') /* Advance to end of protocol */
p++;
if (*p == ':')
{
if (!strncasecmp(data, "http", 4))
{
X11DRV_XDND_InsertXDNDData(property, RegisterClipboardFormatA("UniformResourceLocator"),
strdup(dostext), strlen(dostext));
count++;
TRACE("UniformResourceLocator: %s\n", dostext);
}
else if (!strncasecmp(data, "file", 4))
{
DROPFILES* pdf;
pdf = X11DRV_XDND_BuildDropFiles(p+1, len - 5, XDNDxy);
if (pdf)
{
unsigned int size = HeapSize(GetProcessHeap(), 0, pdf);
X11DRV_XDND_InsertXDNDData(property, CF_HDROP, pdf, size);
count++;
}
TRACE("CF_HDROP: %p\n", pdf);
}
}
return count;
}
/**************************************************************************
* X11DRV_XDND_DeconstructTextHTML
*
* Interpret text/html data and add records to <dndfmt> linked list
*/
static int X11DRV_XDND_DeconstructTextHTML(int property, void* data, int len)
{
char* dostext;
X11DRV_XDND_UnixToDos(&dostext, data, len);
X11DRV_XDND_InsertXDNDData(property,
RegisterClipboardFormatA("UniformResourceLocator"), dostext, strlen(dostext));
TRACE("UniformResourceLocator: %s\n", dostext);
return 1;
}
/**************************************************************************
* X11DRV_XDND_SendDropFiles
*/
static void X11DRV_XDND_SendDropFiles(HWND hwnd)
{
LPXDNDDATA current;
EnterCriticalSection(&xdnd_cs);
current = XDNDData;
/* Find CF_HDROP type if any */
while (current != NULL)
{
if (current->cf_win == CF_HDROP)
break;
current = current->next;
}
if (current != NULL)
{
DROPFILES *lpDrop = (DROPFILES*) current->data;
if (lpDrop)
{
lpDrop->pt.x = XDNDxy.x;
lpDrop->pt.y = XDNDxy.y;
TRACE("Sending WM_DROPFILES: hWnd(0x%p) %p(%s)\n", hwnd,
((char*)lpDrop) + lpDrop->pFiles, ((char*)lpDrop) + lpDrop->pFiles);
PostMessageA(hwnd, WM_DROPFILES, (WPARAM)lpDrop, 0L);
}
}
LeaveCriticalSection(&xdnd_cs);
}
/**************************************************************************
* X11DRV_XDND_FreeDragDropOp
*/
static void X11DRV_XDND_FreeDragDropOp(void)
{
LPXDNDDATA next;
LPXDNDDATA current;
TRACE("\n");
EnterCriticalSection(&xdnd_cs);
current = XDNDData;
/** Free data cache */
while (current != NULL)
{
next = current->next;
HeapFree(GetProcessHeap(), 0, current);
current = next;
}
XDNDData = NULL;
XDNDxy.x = XDNDxy.y = 0;
LeaveCriticalSection(&xdnd_cs);
}
/**************************************************************************
* X11DRV_XDND_BuildDropFiles
*/
static DROPFILES* X11DRV_XDND_BuildDropFiles(char* filename, unsigned int len, POINT pt)
{
char* pfn;
int pathlen;
char path[MAX_PATH];
DROPFILES *lpDrop = NULL;
/* Advance to last starting slash */
pfn = filename + 1;
while (*pfn && (*pfn == '\\' || *pfn =='/'))
{
pfn++;
filename++;
}
/* Remove any trailing \r or \n */
while (*pfn)
{
if (*pfn == '\r' || *pfn == '\n')
{
*pfn = 0;
break;
}
pfn++;
}
TRACE("%s\n", filename);
pathlen = GetLongPathNameA(filename, path, MAX_PATH);
if (pathlen)
{
lpDrop = HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY, sizeof(DROPFILES) + pathlen + 1);
lpDrop->pFiles = sizeof(DROPFILES);
lpDrop->pt.x = pt.x;
lpDrop->pt.y = pt.y;
lpDrop->fNC = 0;
lpDrop->fWide = FALSE;
strcpy(((char*)lpDrop)+lpDrop->pFiles, path);
}
TRACE("resolved %s\n", lpDrop ? filename : NULL);
return lpDrop;
}
/**************************************************************************
* X11DRV_XDND_UnixToDos
*/
static unsigned int X11DRV_XDND_UnixToDos(char** lpdest, char* lpsrc, int len)
{
int i;
unsigned int destlen, lines;
for (i = 0, lines = 0; i <= len; i++)
{
if (lpsrc[i] == '\n')
lines++;
}
destlen = len + lines + 1;
if (lpdest)
{
char* lpstr = HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY, destlen);
for (i = 0, lines = 0; i <= len; i++)
{
if (lpsrc[i] == '\n')
lpstr[++lines + i] = '\r';
lpstr[lines + i] = lpsrc[i];
}
*lpdest = lpstr;
}
return lines;
}
/**************************************************************************
* X11DRV_XDND_URIToDOS
*/
static WCHAR* X11DRV_XDND_URIToDOS(char *encodedURI)
{
WCHAR *ret = NULL;
int i;
int j = 0;
char *uri = HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY, strlen(encodedURI) + 1);
if (uri == NULL)
return NULL;
for (i = 0; encodedURI[i]; ++i)
{
if (encodedURI[i] == '%')
{
if (encodedURI[i+1] && encodedURI[i+2])
{
char buffer[3];
int number;
buffer[0] = encodedURI[i+1];
buffer[1] = encodedURI[i+2];
buffer[2] = '\0';
sscanf(buffer, "%x", &number);
uri[j++] = number;
i += 2;
}
else
{
WARN("invalid URI encoding in %s\n", debugstr_a(encodedURI));
HeapFree(GetProcessHeap(), 0, uri);
return NULL;
}
}
else
uri[j++] = encodedURI[i];
}
/* Read http://www.freedesktop.org/wiki/Draganddropwarts and cry... */
if (strncmp(uri, "file:/", 6) == 0)
{
if (uri[6] == '/')
{
if (uri[7] == '/')
{
/* file:///path/to/file (nautilus, thunar) */
ret = wine_get_dos_file_name(&uri[7]);
}
else if (uri[7])
{
/* file://hostname/path/to/file (X file drag spec) */
char hostname[256];
char *path = strchr(&uri[7], '/');
if (path)
{
*path = '\0';
if (strcmp(&uri[7], "localhost") == 0)
{
*path = '/';
ret = wine_get_dos_file_name(path);
}
else if (gethostname(hostname, sizeof(hostname)) == 0)
{
if (strcmp(hostname, &uri[7]) == 0)
{
*path = '/';
ret = wine_get_dos_file_name(path);
}
}
}
}
}
else if (uri[6])
{
/* file:/path/to/file (konqueror) */
ret = wine_get_dos_file_name(&uri[5]);
}
}
HeapFree(GetProcessHeap(), 0, uri);
return ret;
}
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