xdnd drop support on dock.

2025-12-19 12:28:22 +01:00 · 1999-05-17 20:21:43 +00:00
parent d6f1c81924
commit d40250728d
14 changed files with 383 additions and 165 deletions
--- a/src/Makefile.am
+++ b/src/Makefile.am
@@ -77,8 +77,8 @@ wmaker_SOURCES = 	\
 	texture.h \
 	usermenu.c \
 	usermenu.h \
-	xde.h \
-	xde.c \
+	xdnd.h \
+	xdnd.c \
 	xmodifier.h \
 	xmodifier.c \
 	xutil.c \
--- a/src/Makefile.in
+++ b/src/Makefile.in
@@ -99,7 +99,7 @@ bin_PROGRAMS = wmaker

 EXTRA_DIST = wmnotify.c wmnotdef.h wmnotify.h

-wmaker_SOURCES =  	GNUstep.h 	WindowMaker.h 	actions.c 	actions.h 	appicon.c 	appicon.h 	application.c 	application.h 	appmenu.c 	appmenu.h 	balloon.c 	balloon.h 	client.c 	client.h 	colormap.c 	def_pixmaps.h 	defaults.c 	defaults.h 	dialog.c 	dialog.h 	dock.c 	dockedapp.c 	dock.h 	event.c 	framewin.c 	framewin.h 	gnome.c 	gnome.h 	funcs.h 	icon.c 	icon.h 	keybind.h 	kwm.h 	kwm.c 	list.c 	list.h 	main.c 	menu.c 	menu.h 	misc.c 	motif.c 	motif.h 	moveres.c 	openlook.c 	openlook.h 	pixmap.c 	pixmap.h 	placement.c 	properties.c 	properties.h 	proplist.c 	resources.c 	resources.h 	rootmenu.c 	screen.c 	screen.h 	session.h 	session.c 	shutdown.c 	stacking.c 	stacking.h 	startup.c 	superfluous.c 	superfluous.h 	switchmenu.c 	texture.c 	texture.h 	usermenu.c 	usermenu.h 	xde.h 	xde.c 	xmodifier.h 	xmodifier.c 	xutil.c 	xutil.h 	wconfig.h 	wcore.c 	wcore.h 	wdefaults.c 	wdefaults.h 	window.c 	window.h 	winmenu.c 	winspector.h 	winspector.c 	workspace.c 	workspace.h 	wmsound.c 	wmsound.h 	text.c 	text.h 
+wmaker_SOURCES =  	GNUstep.h 	WindowMaker.h 	actions.c 	actions.h 	appicon.c 	appicon.h 	application.c 	application.h 	appmenu.c 	appmenu.h 	balloon.c 	balloon.h 	client.c 	client.h 	colormap.c 	def_pixmaps.h 	defaults.c 	defaults.h 	dialog.c 	dialog.h 	dock.c 	dockedapp.c 	dock.h 	event.c 	framewin.c 	framewin.h 	gnome.c 	gnome.h 	funcs.h 	icon.c 	icon.h 	keybind.h 	kwm.h 	kwm.c 	list.c 	list.h 	main.c 	menu.c 	menu.h 	misc.c 	motif.c 	motif.h 	moveres.c 	openlook.c 	openlook.h 	pixmap.c 	pixmap.h 	placement.c 	properties.c 	properties.h 	proplist.c 	resources.c 	resources.h 	rootmenu.c 	screen.c 	screen.h 	session.h 	session.c 	shutdown.c 	stacking.c 	stacking.h 	startup.c 	superfluous.c 	superfluous.h 	switchmenu.c 	texture.c 	texture.h 	usermenu.c 	usermenu.h 	xdnd.h 	xdnd.c 	xmodifier.h 	xmodifier.c 	xutil.c 	xutil.h 	wconfig.h 	wcore.c 	wcore.h 	wdefaults.c 	wdefaults.h 	window.c 	window.h 	winmenu.c 	winspector.h 	winspector.c 	workspace.c 	workspace.h 	wmsound.c 	wmsound.h 	text.c 	text.h 


 CPPFLAGS = @CPPFLAGS@ @DFLAGS@ -DLOCALEDIR=\"$(NLSDIR)\"
@@ -126,7 +126,7 @@ client.o colormap.o defaults.o dialog.o dock.o dockedapp.o event.o \
 framewin.o gnome.o icon.o kwm.o list.o main.o menu.o misc.o motif.o \
 moveres.o openlook.o pixmap.o placement.o properties.o proplist.o \
 resources.o rootmenu.o screen.o session.o shutdown.o stacking.o \
-startup.o superfluous.o switchmenu.o texture.o usermenu.o xde.o \
+startup.o superfluous.o switchmenu.o texture.o usermenu.o xdnd.o \
 xmodifier.o xutil.o wcore.o wdefaults.o window.o winmenu.o winspector.o \
 workspace.o wmsound.o text.o
 wmaker_DEPENDENCIES =  $(top_builddir)/WINGs/libWINGs.a \
--- a/src/appicon.c
+++ b/src/appicon.c
@@ -44,6 +44,9 @@
 #include "framewin.h"
 #include "dialog.h"
 #include "client.h"
+#ifdef XDND
+#include "xdnd.h"
+#endif

 /*
 * icon_file for the dock is got from the preferences file by
@@ -103,6 +106,9 @@ wAppIconCreateForDock(WScreen *scr, char *command, char *wm_instance,
    dicon->icon = wIconCreateWithIconFile(scr, path, tile);
    if (path)
 	free(path);
+#ifdef XDND
+    wXDNDMakeAwareness(dicon->icon->core->window);
+#endif
 #ifdef REDUCE_APPICONS
    dicon->num_apps = 0;
 #endif
@@ -219,6 +225,9 @@ wAppIconCreate(WWindow *leader_win)
                CWSaveUnder, &attribs);
    }
 #endif
+#ifdef XDND
+    wXDNDMakeAwareness(aicon->icon->core->window);
+#endif

    /* will be overriden if docked */
    aicon->icon->core->descriptor.handle_mousedown = appIconMouseDown;
--- a/src/event.c
+++ b/src/event.c
@@ -34,8 +34,8 @@
 #ifdef SHAPE
 #include <X11/extensions/shape.h>
 #endif
-#ifdef XDE_DND
-#include "xde.h"
+#ifdef XDND
+#include "xdnd.h"
 #endif

 #ifdef KEEP_XKB_LOCK_STATUS     
@@ -405,6 +405,7 @@ handleDeadProcess(void *foo)
 static void
 saveTimestamp(XEvent *event)
 {
+    WScreen *scr = wScreenForWindow(event->xany.window);
    LastTimestamp = CurrentTime;

    switch (event->type) {
@@ -434,6 +435,29 @@ saveTimestamp(XEvent *event)
 	break;
     case SelectionNotify:
 	LastTimestamp = event->xselection.time;
+#ifdef XDND
+    wXDNDProcessSelection(&event->xselection);
+    {
+        char *retain = scr->xdestring;
+        for (;retain[0];retain++) {
+            if (retain[0] < 32) retain[0] = 32;
+            if (!strncmp(retain, "file:", 5)) {
+                int i;
+                for (i=0;i<5;retain[i++]=' ');
+            }
+        }
+        retain = scr->xdestring;
+        if (scr->xdestring){
+            if (!strncmp(scr->xdestring, "file:", 5))
+                scr->xdestring+=5;
+        }
+        wDockReceiveDNDDrop(scr,event);
+        if (retain){
+            XFree(retain);
+            scr->xdestring = NULL;
+        }
+    }
+#endif
 	break;
    }
 }
@@ -911,10 +935,10 @@ handleClientMessage(XEvent *event)
    } else if (wKWMProcessClientMessage(&event->xclient)) {
 	/* do nothing */
 #endif /* KWM_HINTS */
-#ifdef XDE_DND
-    } else if (wXDEProcessClientMessage(&event->xclient)) {
+#ifdef XDND
+    } else if (wXDNDProcessClientMessage(&event->xclient)) {
 	/* do nothing */
-#endif /* XDE_DND */
+#endif /* XDND */
 #ifdef OFFIX_DND
    } else if (event->xclient.message_type==_XA_DND_PROTOCOL) {
 	WScreen *scr = wScreenForWindow(event->xclient.window);
--- a/src/main.c
+++ b/src/main.c
@@ -113,15 +113,6 @@ Atom _XA_WINDOWMAKER_COMMAND;
 Atom _XA_DND_PROTOCOL;
 Atom _XA_DND_SELECTION;
 #endif
-#ifdef XDE_DND
-Atom _XA_XDE_REQUEST;
-Atom _XA_XDE_ENTER;
-Atom _XA_XDE_LEAVE;
-Atom _XA_XDE_DATA_AVAILABLE;
-Atom _XDE_FILETYPE;
-Atom _XDE_URLTYPE;
-#endif
-

 /* cursors */
 Cursor wCursor[WCUR_LAST];
--- a/src/misc.c
+++ b/src/misc.c
@@ -875,8 +875,11 @@ get_dnd_selection(WScreen *scr)
    char *flat_string;
    int count;
    
-#ifdef XDE_DND
+#ifdef XDND
    if(scr->xdestring) {
+        /*
+        printf(" return %s\n",scr->xdestring);
+        */
 	return (wstrdup(scr->xdestring));
    }
 #endif
--- a/src/screen.h
+++ b/src/screen.h
@@ -26,10 +26,6 @@
 #include "WindowMaker.h"
 #include <sys/types.h>

-#ifdef XDE_DND
-#include <gdk/gdk.h>
-#endif
-
 #include <proplist.h>


@@ -298,7 +294,7 @@ typedef struct _WScreen {
    struct WWindow *shortcutWindow[MAX_WINDOW_SHORTCUTS];
    struct LinkedList *shortcutSelectedWindows[MAX_WINDOW_SHORTCUTS];

-#ifdef XDE_DND
+#ifdef XDND
    char *xdestring;
 #endif

--- a/src/startup.c
+++ b/src/startup.c
@@ -57,6 +57,9 @@
 #include "defaults.h"
 #include "properties.h"
 #include "dialog.h"
+#ifdef XDND
+#include "xdnd.h"
+#endif

 #include "xutil.h"

@@ -125,14 +128,6 @@ extern Atom _XA_GNUSTEP_WM_MINIATURIZE_WINDOW;
 extern Atom _XA_DND_PROTOCOL;
 extern Atom _XA_DND_SELECTION;
 #endif
-#ifdef XDE_DND
-extern Atom _XA_XDE_REQUEST;
-extern Atom _XA_XDE_ENTER;
-extern Atom _XA_XDE_LEAVE;
-extern Atom _XA_XDE_DATA_AVAILABLE;
-extern Atom _XDE_FILETYPE;
-extern Atom _XDE_URLTYPE;
-#endif


 /* cursors */
@@ -697,13 +692,8 @@ StartUp(Bool defaultScreenOnly)
    _XA_DND_SELECTION = XInternAtom(dpy, "DndSelection", False);
    _XA_DND_PROTOCOL = XInternAtom(dpy, "DndProtocol", False);
 #endif
-#ifdef XDE_DND
-    _XA_XDE_ENTER = XInternAtom(dpy, "_XDE_ENTER", False);
-    _XA_XDE_REQUEST = XInternAtom(dpy, "_XDE_REQUEST", False);
-    _XA_XDE_LEAVE = XInternAtom(dpy, "_XDE_LEAVE", False);
-    _XA_XDE_DATA_AVAILABLE = XInternAtom(dpy, "_XDE_DATA_AVAILABLE", False);
-    _XDE_FILETYPE = XInternAtom(dpy, "file:ALL", False);
-    _XDE_URLTYPE = XInternAtom(dpy, "url:ALL", False);
+#ifdef XDND
+    wXDNDInitializeAtoms();
 #endif


--- a/src/wconfig.h.in
+++ b/src/wconfig.h.in
@@ -72,9 +72,9 @@
 #define OFFIX_DND

 /*
- * support for XDE drang and drop in the Dock. Experimental
+ * support for XDND drop in the Dock. Experimental
 */
-#undef XDE_DND
+#undef XDND

 /*
 * support for Motif window manager (mwm) window hints
--- a/src/wcore.c
+++ b/src/wcore.c
@@ -69,9 +69,6 @@ wCoreCreateTopLevel(WScreen *screen, int x, int y, int width, int height,
    attribs.border_pixel = screen->frame_border_pixel;
    attribs.event_mask = SubstructureRedirectMask | ButtonPressMask
        | ButtonReleaseMask | ButtonMotionMask | ExposureMask | EnterWindowMask
-#ifdef XDE_DND
-	| StructureNotifyMask
-#endif
        | LeaveWindowMask;

    vmask |= CWColormap;
--- a/src/xde.c
+++ b/src/xde.c
@@ -1,113 +0,0 @@
-
-#include "wconfig.h"
-
-#ifdef XDE_DND
-
-#include <X11/Xlib.h>
-#include "WindowMaker.h"
-#include "window.h"
-
-#include "stdlib.h"
-
-#include <X11/Xatom.h>
-#include <gdk/gdk.h>
-
-
-extern Atom _XA_XDE_REQUEST;
-extern Atom _XA_XDE_ENTER;
-extern Atom _XA_XDE_LEAVE;
-extern Atom _XA_XDE_DATA_AVAILABLE;
-extern Atom _XDE_FILETYPE;
-extern Atom _XDE_URLTYPE;
-
-
-
-Bool
-wXDEProcessClientMessage(XClientMessageEvent *event)
-{
-    Bool done = False;
-
-    if (event->message_type==_XA_XDE_DATA_AVAILABLE) {
-	GdkEvent gdkev;
-	WScreen *scr = wScreenForWindow(event->window);
-	Atom tmpatom;
-	int datalenght;
-	long tmplong;
-	char * tmpstr, * runstr, * freestr, * tofreestr;
-	    printf("x\n");
-	gdkev.dropdataavailable.u.allflags = event->data.l[1];
-	gdkev.dropdataavailable.timestamp = event->data.l[4];
-
-	if(gdkev.dropdataavailable.u.flags.isdrop){
-		gdkev.dropdataavailable.type = GDK_DROP_DATA_AVAIL;
-		gdkev.dropdataavailable.requestor = event->data.l[0];
-		XGetWindowProperty(dpy,gdkev.dropdataavailable.requestor,
-				event->data.l[2],
-				0, LONG_MAX -1,
-				0, XA_PRIMARY, &tmpatom,
-				&datalenght,
-				&gdkev.dropdataavailable.data_numbytes,
-				&tmplong,
-				&tmpstr);
-		datalenght=gdkev.dropdataavailable.data_numbytes-1;
-		tofreestr=tmpstr;
-		runstr=NULL;
-                for(;datalenght>0;datalenght-=(strlen(tmpstr)+1),tmpstr=&tmpstr[strlen(tmpstr)+1]){
-		freestr=runstr;runstr=wstrappend(runstr,tmpstr);free(freestr);
-		freestr=runstr;runstr=wstrappend(runstr," ");free(freestr);
-		}
-                free(tofreestr);
-		scr->xdestring=runstr;
-		/* no need to redirect ? */
-	        wDockReceiveDNDDrop(scr,event);
-		free(runstr);
-		scr->xdestring=NULL;
-	}
-	done = True;
-    } else if (event->message_type==_XA_XDE_LEAVE) {
-	    printf("leave\n");
-	done = True;
-    } else if (event->message_type==_XA_XDE_ENTER) {
-	GdkEvent gdkev;
-	XEvent replyev;
-
-	gdkev.dropenter.u.allflags=event->data.l[1];
-	printf("from win %x\n",event->data.l[0]);
-	printf("to win %x\n",event->window);
-        printf("enter %x\n",event->data.l[1]);
-        printf("v %x ",event->data.l[2]);
-        printf("%x ",event->data.l[3]);
-        printf("%x\n",event->data.l[4]);
-
-	if(event->data.l[2]==_XDE_FILETYPE ||
-	   event->data.l[3]==_XDE_FILETYPE ||
-	   event->data.l[4]==_XDE_FILETYPE ||
-	   event->data.l[2]==_XDE_URLTYPE ||
-	   event->data.l[3]==_XDE_URLTYPE ||
-	   event->data.l[4]==_XDE_URLTYPE)
-        if(gdkev.dropenter.u.flags.sendreply){
-		/*reply*/
-            replyev.xclient.type = ClientMessage;
-            replyev.xclient.window = event->data.l[0];
-            replyev.xclient.format = 32;
-            replyev.xclient.message_type = _XA_XDE_REQUEST;
-            replyev.xclient.data.l[0] = event->window;
-
-            gdkev.dragrequest.u.allflags = 0;
-            gdkev.dragrequest.u.flags.protocol_version = 0;
-            gdkev.dragrequest.u.flags.willaccept = 1;
-            gdkev.dragrequest.u.flags.delete_data = 0;
-
-            replyev.xclient.data.l[1] = gdkev.dragrequest.u.allflags;
-            replyev.xclient.data.l[2] = replyev.xclient.data.l[3] = 0;
-            replyev.xclient.data.l[4] = event->data.l[2];
-            XSendEvent(dpy, replyev.xclient.window, 0, NoEventMask, &replyev);
-            XSync(dpy, 0);
-        }
-	done = True;
-    }
-    
-    return done;
-}
-
-#endif
--- a/src/xde.h
+++ b/src/xde.h
@@ -1,8 +0,0 @@
-
-#ifndef _XDE_H_
-#define _XDE_H_
-
-Bool wXDEProcessClientMessage(XClientMessageEvent *event);
-
-
-#endif
--- a/src/xdnd.c
+++ b/src/xdnd.c
@@ -0,0 +1,276 @@
+/* Many part of code are ripped of an example from JX's site */
+
+#include "wconfig.h"
+
+#ifdef XDND
+
+#include <X11/Xlib.h>
+#include "WindowMaker.h"
+#include "window.h"
+#include "dock.h"
+#include "xdnd.h"
+#include "motif.h"
+
+#include "workspace.h"
+
+#include "stdlib.h"
+
+#include <X11/Xatom.h>
+
+
+#define XDND_VERSION 3L
+
+Atom _XA_XdndAware;
+Atom _XA_XdndEnter;
+Atom _XA_XdndLeave;
+Atom _XA_XdndDrop;
+Atom _XA_XdndPosition;
+Atom _XA_XdndStatus;
+Atom _XA_XdndActionCopy;
+Atom _XA_XdndSelection;
+Atom _XA_XdndFinished;
+Atom _XA_WINDOWMAKER_XDNDEXCHANGE;
+
+/*
+Atom _XA_MOTIF_DRAG_RECEIVER_INFO;
+Atom _XA_MOTIF_DRAG_AND_DROP_MESSAGE;
+*/
+
+Atom atom_support;
+
+void wXDNDInitializeAtoms()
+{
+
+    _XA_XdndAware = XInternAtom(dpy, "XdndAware", False);
+    _XA_XdndEnter = XInternAtom(dpy, "XdndEnter", False);
+    _XA_XdndLeave = XInternAtom(dpy, "XdndLeave", False);
+    _XA_XdndDrop = XInternAtom(dpy, "XdndDrop", False);
+    _XA_XdndPosition = XInternAtom(dpy, "XdndPosition", False);
+    _XA_XdndStatus = XInternAtom(dpy, "XdndStatus", False);
+    _XA_XdndActionCopy = XInternAtom(dpy, "XdndActionCopy", False);
+    _XA_XdndSelection = XInternAtom(dpy, "XdndSelection", False);
+    _XA_XdndFinished = XInternAtom(dpy, "XdndFinished", False);
+
+    _XA_WINDOWMAKER_XDNDEXCHANGE = XInternAtom(dpy, "_WINDOWMAKER_XDNDEXCHANGE", False);
+
+    /*
+    _XA_MOTIF_DRAG_RECEIVER_INFO = XInternAtom(dpy, "_MOTIF_DRAG_RECEIVER_INFO",False);
+    _XA_MOTIF_DRAG_AND_DROP_MESSAGE = XInternAtom(dpy, "_MOTIF_DRAG_AND_DROP_MESSAGE", False);
+    */
+}
+
+void wXDNDMakeAwareness(Window window) {
+    long int xdnd_version = 3;
+    /*
+    MotifDragReceiverInfo info;
+    */
+    XChangeProperty (dpy, window, _XA_XdndAware, XA_ATOM,
+            32, PropModeAppend, (char *)&xdnd_version, 1);
+
+    /*** MOTIF ***
+    info.byte_order = '\0';
+    info.protocol_version = 0;
+    info.protocol_style = XmDRAG_DYNAMIC;
+    info.proxy_window = 0;
+    info.num_drop_sites = 0;
+    info.total_size = sizeof(info);
+
+    XChangeProperty (dpy, window,
+                   _XA_MOTIF_DRAG_RECEIVER_INFO,
+                   _XA_MOTIF_DRAG_RECEIVER_INFO,
+                   8, PropModeReplace,
+                   (unsigned char *)&info,
+                   sizeof (info));
+                   */
+}
+
+void wXDNDClearAwareness(Window window) {
+    long int xdnd_version = 3;
+    XDeleteProperty (dpy, window, _XA_XdndAware);
+}
+
+Bool
+wXDNDProcessSelection(XSelectionEvent *event)
+{
+	WScreen *scr = wScreenForWindow(event->requestor);
+    char *dropdata;
+    Atom ret_type;
+    int ret_format;
+    unsigned long ret_item;
+    unsigned long remain_byte;
+    char * delme;
+    Window selowner = XGetSelectionOwner(dpy,_XA_XdndSelection);
+    XGetWindowProperty(dpy, event->requestor, _XA_WINDOWMAKER_XDNDEXCHANGE,
+            0, 65536, True, atom_support, &ret_type, &ret_format,
+            &ret_item, &remain_byte, (unsigned char **)&delme);
+    if (delme){
+        /*
+        printf("get -%s-\n",delme);
+        */
+		scr->xdestring=delme;
+    }
+
+    {
+        /*finished*/
+        XEvent xevent;
+        memset (&xevent, 0, sizeof(xevent));
+        xevent.xany.type = ClientMessage;
+        xevent.xany.display = dpy;
+        xevent.xclient.window = selowner;
+        xevent.xclient.message_type = _XA_XdndFinished;
+        xevent.xclient.format = 32;
+    
+        XDND_FINISHED_TARGET_WIN(&xevent) = event->requestor;
+        XSendEvent(dpy, selowner, 0, 0, &xevent);
+   }
+}
+
+Bool
+isAwareXDND(Window window)
+{
+    Atom actual;
+    int format;
+    unsigned long count, remaining;
+    unsigned char *data=0;
+    Atom *types, *t;
+
+    if (!window) return False;
+    XGetWindowProperty (dpy, window, _XA_XdndAware,
+                    0, 0x8000000L, False, XA_ATOM,
+                    &actual, &format,
+                    &count, &remaining, &data);
+    if (actual != XA_ATOM || format != 32 || count == 0 || !data) {
+        if (data)
+            XFree (data);
+        return False;
+    }
+    if (data)
+        XFree (data);
+    return True;
+}
+
+Bool
+acceptXDND(Window window)
+{
+	WScreen *scr = wScreenForWindow(window);
+    WWindow *wwin = wWindowFor(window);
+    WDock *dock;
+    int icon_pos,i;
+    
+    icon_pos = -1;
+    if ((dock = scr->dock)!=NULL) {
+        for (i=0; i<dock->max_icons; i++) {
+            if (dock->icon_array[i]
+                && dock->icon_array[i]->icon->core->window==window) {
+                icon_pos = i;
+                break;
+            }
+        }
+    }
+    if (icon_pos<0 && (dock = scr->workspaces[scr->current_workspace]->clip)!=NULL) {
+        for (i=0; i<dock->max_icons; i++) {
+            if (dock->icon_array[i]
+                && dock->icon_array[i]->icon->core->window==window) {
+                icon_pos = i;
+                break;
+            }
+        }
+    }
+    if (icon_pos<0) return False;
+    if (!dock) return False;
+    if (isAwareXDND(dock->icon_array[icon_pos]->icon->icon_win)) return False;
+    
+    if (dock->icon_array[icon_pos]->dnd_command!=NULL) return True;
+    
+    return False;
+}
+
+Bool
+wXDNDProcessClientMessage(XClientMessageEvent *event)
+{
+    /* test */
+    {
+    char * name = XGetAtomName(dpy, event->message_type);
+    /*
+    printf("Get %s\n",name);
+    */
+    XFree(name);
+    }
+
+    /*
+    if (event->message_type == _XA_MOTIF_DRAG_AND_DROP_MESSAGE) {
+        printf("motif dnd msg %d\n",event->data.b[0]);
+        if (event->data.b[0] == XmDROP_START){
+            unsigned x_root, y_root, flags;
+            unsigned char reason;
+            unsigned long timestamp;
+            Atom atom;
+            Window source_window;
+            MotifDragInitiatorInfo *initiator_info;
+            Atom ret_type;
+            int ret_format;
+            unsigned long ret_item;
+            unsigned long remain_byte;
+
+            reason = event->data.b[0];
+            flags = event->data.s[1];
+            timestamp = event->data.l[1];
+            x_root = event->data.s[4];
+            y_root = event->data.s[5];
+            atom = event->data.l[3];
+            source_window = event->data.l[4];
+
+    XGetWindowProperty(dpy, source_window, atom,
+            0, sizeof(*initiator_info), True, atom_support,
+            &ret_type, &ret_format,
+            &ret_item, &remain_byte, (unsigned char **)&initiator_info);
+        }
+    }
+    else */
+    if (event->message_type == _XA_XdndEnter) {
+        if ((event->data.l[1] & 1) == 0){
+            atom_support = event->data.l[2];
+        }
+        /*
+        else puts("enter more than 3 types");
+        */
+        return True;
+    } else if (event->message_type == _XA_XdndLeave) {
+        return True;
+    } else if (event->message_type == _XA_XdndDrop) {
+        if (event->data.l[0] == XGetSelectionOwner(dpy, _XA_XdndSelection)){
+            XConvertSelection(dpy, _XA_XdndSelection, atom_support,
+                    _XA_WINDOWMAKER_XDNDEXCHANGE, event->window, CurrentTime);
+        }
+        /*
+        else puts("wierd selection owner");
+        */
+        return True;
+    } else if (event->message_type == _XA_XdndPosition) {
+        XEvent xevent;
+        Window srcwin = event->data.l[0];
+        if (atom_support != XInternAtom(dpy, "text/uri-list", False)) {
+            return True;
+        }
+        {
+            memset (&xevent, 0, sizeof(xevent));
+            xevent.xany.type = ClientMessage;
+            xevent.xany.display = dpy;
+            xevent.xclient.window = srcwin;
+            xevent.xclient.message_type = _XA_XdndStatus;
+            xevent.xclient.format = 32; 
+
+            XDND_STATUS_TARGET_WIN (&xevent) = event->window;
+            XDND_STATUS_WILL_ACCEPT_SET (&xevent, acceptXDND(event->window));
+            XDND_STATUS_WANT_POSITION_SET(&xevent, True);
+            XDND_STATUS_RECT_SET(&xevent, 0, 0, 1024,768);
+            XDND_STATUS_ACTION(&xevent) = _XA_XdndActionCopy;
+
+            XSendEvent(dpy, srcwin, 0, 0, &xevent);
+        }
+        return True;
+    }
+    return False;
+}
+
+#endif
--- a/src/xdnd.h
+++ b/src/xdnd.h
@@ -0,0 +1,53 @@
+
+#ifndef _XDND_H_
+#define _XDND_H_
+
+
+void wXDNDInitializeAtoms();
+Bool wXDNDProcessSelection(XSelectionEvent *event);
+Bool wXDNDProcessClientMessage(XClientMessageEvent *event);
+void wXDNDMakeAwareness(Window window);
+void wXDNDClearAwareness(Window window);
+
+/* header was ripped from xdnd's example on its page */
+
+#define XDND_THREE 3
+#define XDND_ENTER_SOURCE_WIN(e)	((e)->xclient.data.l[0])
+#define XDND_ENTER_THREE_TYPES(e)	(((e)->xclient.data.l[1] & 0x1UL) == 0)
+#define XDND_ENTER_THREE_TYPES_SET(e,b)	(e)->xclient.data.l[1] = ((e)->xclient.data.l[1] & ~0x1UL) | (((b) == 0) ? 0 : 0x1UL)
+#define XDND_ENTER_VERSION(e)		((e)->xclient.data.l[1] >> 24)
+#define XDND_ENTER_VERSION_SET(e,v)	(e)->xclient.data.l[1] = ((e)->xclient.data.l[1] & ~(0xFF << 24)) | ((v) << 24)
+#define XDND_ENTER_TYPE(e,i)		((e)->xclient.data.l[2 + i])	/* i => (0, 1, 2) */
+
+/* XdndPosition */
+#define XDND_POSITION_SOURCE_WIN(e)	((e)->xclient.data.l[0])
+#define XDND_POSITION_ROOT_X(e)		((e)->xclient.data.l[2] >> 16)
+#define XDND_POSITION_ROOT_Y(e)		((e)->xclient.data.l[2] & 0xFFFFUL)
+#define XDND_POSITION_ROOT_SET(e,x,y)	(e)->xclient.data.l[2]  = ((x) << 16) | ((y) & 0xFFFFUL)
+#define XDND_POSITION_TIME(e)		((e)->xclient.data.l[3])
+#define XDND_POSITION_ACTION(e)		((e)->xclient.data.l[4])
+
+/* XdndStatus */
+#define XDND_STATUS_TARGET_WIN(e)	((e)->xclient.data.l[0])
+#define XDND_STATUS_WILL_ACCEPT(e)	((e)->xclient.data.l[1] & 0x1L)
+#define XDND_STATUS_WILL_ACCEPT_SET(e,b) (e)->xclient.data.l[1] = ((e)->xclient.data.l[1] & ~0x1UL) | (((b) == 0) ? 0 : 0x1UL)
+#define XDND_STATUS_WANT_POSITION(e)	((e)->xclient.data.l[1] & 0x2UL)
+#define XDND_STATUS_WANT_POSITION_SET(e,b) (e)->xclient.data.l[1] = ((e)->xclient.data.l[1] & ~0x2UL) | (((b) == 0) ? 0 : 0x2UL)
+#define XDND_STATUS_RECT_X(e)		((e)->xclient.data.l[2] >> 16)
+#define XDND_STATUS_RECT_Y(e)		((e)->xclient.data.l[2] & 0xFFFFL)
+#define XDND_STATUS_RECT_WIDTH(e)	((e)->xclient.data.l[3] >> 16)
+#define XDND_STATUS_RECT_HEIGHT(e)	((e)->xclient.data.l[3] & 0xFFFFL)
+#define XDND_STATUS_RECT_SET(e,x,y,w,h)	{(e)->xclient.data.l[2] = ((x) << 16) | ((y) & 0xFFFFUL); (e)->xclient.data.l[3] = ((w) << 16) | ((h) & 0xFFFFUL); }
+#define XDND_STATUS_ACTION(e)		((e)->xclient.data.l[4])
+
+/* XdndLeave */
+#define XDND_LEAVE_SOURCE_WIN(e)	((e)->xclient.data.l[0])
+
+/* XdndDrop */
+#define XDND_DROP_SOURCE_WIN(e)		((e)->xclient.data.l[0])
+#define XDND_DROP_TIME(e)		((e)->xclient.data.l[2])
+
+/* XdndFinished */
+#define XDND_FINISHED_TARGET_WIN(e)	((e)->xclient.data.l[0])
+
+#endif