/* 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-1,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; }