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/* Took WindowMaker implementation and adopted for MPlayer */
#include <X11/Xlib.h>
#include "ws.h"
#include "wsxdnd.h"
#include <stdio.h>
#include <stdlib.h>
#include <string.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_XdndTypeList;
Atom atom_support;
void wsXDNDInitialize()
{
_XA_XdndAware = XInternAtom(wsDisplay, "XdndAware", False);
_XA_XdndEnter = XInternAtom(wsDisplay, "XdndEnter", False);
_XA_XdndLeave = XInternAtom(wsDisplay, "XdndLeave", False);
_XA_XdndDrop = XInternAtom(wsDisplay, "XdndDrop", False);
_XA_XdndPosition = XInternAtom(wsDisplay, "XdndPosition", False);
_XA_XdndStatus = XInternAtom(wsDisplay, "XdndStatus", False);
_XA_XdndActionCopy = XInternAtom(wsDisplay, "XdndActionCopy", False);
_XA_XdndSelection = XInternAtom(wsDisplay, "XdndSelection", False);
_XA_XdndFinished = XInternAtom(wsDisplay, "XdndFinished", False);
_XA_XdndTypeList = XInternAtom(wsDisplay, "XdndTypeList", False);
}
void wsXDNDMakeAwareness(wsTWindow* window) {
long int xdnd_version = XDND_VERSION;
XChangeProperty (wsDisplay, window->WindowID, _XA_XdndAware, XA_ATOM,
32, PropModeAppend, (char *)&xdnd_version, 1);
}
void wsXDNDClearAwareness(wsTWindow* window) {
XDeleteProperty (wsDisplay, window->WindowID, _XA_XdndAware);
}
#define MAX_DND_FILES 64
Bool
wsXDNDProcessSelection(wsTWindow* wnd, XEvent *event)
{
Atom ret_type;
int ret_format;
unsigned long ret_items;
unsigned long remain_byte;
char * delme;
XEvent xevent;
Window selowner = XGetSelectionOwner(wsDisplay,_XA_XdndSelection);
XGetWindowProperty(wsDisplay, event->xselection.requestor,
event->xselection.property,
0, 65536, True, atom_support, &ret_type, &ret_format,
&ret_items, &remain_byte, (unsigned char **)&delme);
/*send finished*/
memset (&xevent, 0, sizeof(xevent));
xevent.xany.type = ClientMessage;
xevent.xany.display = wsDisplay;
xevent.xclient.window = selowner;
xevent.xclient.message_type = _XA_XdndFinished;
xevent.xclient.format = 32;
XDND_FINISHED_TARGET_WIN(&xevent) = wnd->WindowID;
XSendEvent(wsDisplay, selowner, 0, 0, &xevent);
if (!delme){
printf("D&D: Nothing returned!\n");
return False;
}
{
/* Handle dropped files */
char * retain = delme;
char * files[MAX_DND_FILES];
int num = 0;
while(retain < delme + ret_items) {
if (!strncmp(retain,"file:",5)) {
/* add more 2 chars while removing 5 is harmless */
retain+=5;
}
/* add the "retain" to the list */
files[num++]=retain;
/* now check for special characters */
{
int newone = 0;
while(retain < (delme + ret_items)){
if(*retain == '\r' || *retain == '\n'){
*retain=0;
newone = 1;
} else {
if (newone)
break;
}
retain++;
}
}
if (num >= MAX_DND_FILES)
break;
}
/* Handle the files */
if(wnd->DandDHandler){
wnd->DandDHandler(num,files);
}
}
free(delme);
return True;
}
Bool
wsXDNDProcessClientMessage(wsTWindow* wnd, XClientMessageEvent *event)
{
/* test */
/*{
char * name = XGetAtomName(wsDisplay, event->message_type);
printf("Got %s\n",name);
XFree(name);
}*/
if (event->message_type == _XA_XdndEnter) {
Atom ok = XInternAtom(wsDisplay, "text/uri-list", False);
atom_support = None;
if ((event->data.l[1] & 1) == 0){
int index;
for(index = 0; index <= 2 ; index++){
if (event->data.l[2+index] == ok) {
atom_support = ok;
}
}
if (atom_support == None) {
printf("This doesn't seem as a file...\n");
}
} else {
/* need to check the whole list here */
unsigned long ret_left = 1;
int offset = 0;
Atom* ret_buff;
Atom ret_type;
int ret_format;
unsigned long ret_items;
/* while there is data left...*/
while(ret_left && atom_support == None){
XGetWindowProperty(wsDisplay,event->data.l[0],_XA_XdndTypeList,
offset,256,False,XA_ATOM,&ret_type,
&ret_format,&ret_items,&ret_left,
(unsigned char**)&ret_buff);
/* sanity checks...*/
if(ret_buff == NULL || ret_type != XA_ATOM || ret_format != 8*sizeof(Atom)){
XFree(ret_buff);
break;
}
/* now chek what we've got */
{
int i;
for(i=0; i<ret_items; i++){
if(ret_buff[i] == ok){
atom_support = ok;
break;
}
}
}
/* maybe next time ... */
XFree(ret_buff);
offset += 256;
}
}
return True;
}
if (event->message_type == _XA_XdndLeave) {
return True;
}
if (event->message_type == _XA_XdndDrop) {
if (event->data.l[0] != XGetSelectionOwner(wsDisplay, _XA_XdndSelection)){
puts("Wierd selection owner... QT?");
}
if (atom_support != None) {
XConvertSelection(wsDisplay, _XA_XdndSelection, atom_support,
_XA_XdndSelection, event->window,
CurrentTime);
}
return True;
}
if (event->message_type == _XA_XdndPosition) {
Window srcwin = event->data.l[0];
if (atom_support == None){
return True;
}
/* send response */
{
XEvent xevent;
memset (&xevent, 0, sizeof(xevent));
xevent.xany.type = ClientMessage;
xevent.xany.display = wsDisplay;
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, True);
XDND_STATUS_WANT_POSITION_SET(&xevent, True);
/* actually need smth real here */
XDND_STATUS_RECT_SET(&xevent, 0, 0, 1024,768);
XDND_STATUS_ACTION(&xevent) = _XA_XdndActionCopy;
XSendEvent(wsDisplay, srcwin, 0, 0, &xevent);
}
return True;
}
return False;
}
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