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/*
* ion/ioncore/selection.c
*
* Copyright (c) Tuomo Valkonen 1999-2009.
*
* See the included file LICENSE for details.
*/
#include <X11/Xmd.h>
#include <string.h>
#include "common.h"
#include "global.h"
#include "property.h"
#include "xwindow.h"
#include <libextl/extl.h>
static char *selection_data=NULL;
static int selection_length;
static bool continuation_set=FALSE;
static ExtlFn continuation;
#define CLIPATOM(X) XA_PRIMARY
static Atom XA_COMPOUND_TEXT(Display *unused)
{
static Atom a=None;
if(a==None)
a=XInternAtom(ioncore_g.dpy, "COMPOUND_TEXT", False);
return a;
}
void ioncore_handle_selection_request(XSelectionRequestEvent *ev)
{
XSelectionEvent sev;
XTextProperty prop;
const char *p[1];
bool ok=FALSE;
sev.property=None;
if(selection_data==NULL || ev->property==None)
goto refuse;
p[0]=selection_data;
if(!ioncore_g.use_mb && ev->target==XA_STRING){
Status st=XStringListToTextProperty((char **)p, 1, &prop);
ok=(st!=0);
}else if(ioncore_g.use_mb){
XICCEncodingStyle style;
if(ev->target==XA_STRING){
style=XStringStyle;
ok=TRUE;
}else if(ev->target==XA_COMPOUND_TEXT(ioncore_g.dpy)){
style=XCompoundTextStyle;
ok=TRUE;
}
if(ok){
int st=XmbTextListToTextProperty(ioncore_g.dpy, (char **)p, 1,
style, &prop);
ok=(st>=0);
}
}
if(ok){
XSetTextProperty(ioncore_g.dpy, ev->requestor, &prop, ev->property);
sev.property=ev->property;
XFree(prop.value);
}
refuse:
sev.type=SelectionNotify;
sev.requestor=ev->requestor;
sev.selection=ev->selection;
sev.target=ev->target;
sev.time=ev->time;
XSendEvent(ioncore_g.dpy, ev->requestor, False, 0L, (XEvent*)&sev);
}
static void ins(Window win, const char *str, int n)
{
if(!continuation_set){
WWindow *wwin=XWINDOW_REGION_OF_T(win, WWindow);
if(wwin)
window_insstr(wwin, str, n);
}else{
char *tmp=scopyn(str, n);
if(tmp!=NULL){
extl_call(continuation, "s", NULL, tmp);
free(tmp);
}
}
}
static void insert_selection(Window win, Atom prop)
{
char **p=xwindow_get_text_property(win, prop, NULL);
if(p!=NULL){
ins(win, p[0], strlen(p[0]));
XFreeStringList(p);
}
}
void ioncore_handle_selection(XSelectionEvent *ev)
{
Atom prop=ev->property;
Window win=ev->requestor;
WWindow *wwin;
if(prop!=None){
insert_selection(win, prop);
XDeleteProperty(ioncore_g.dpy, win, prop);
}
if(continuation_set){
extl_unref_fn(continuation);
continuation_set=FALSE;
}
}
void ioncore_clear_selection()
{
if(selection_data!=NULL){
free(selection_data);
selection_data=NULL;
}
}
void ioncore_set_selection_n(const char *p, int n)
{
if(selection_data!=NULL)
free(selection_data);
selection_data=ALLOC_N(char, n+1);
if(selection_data==NULL)
return;
memcpy(selection_data, p, n);
selection_data[n]='\0';
selection_length=n;
XSetSelectionOwner(ioncore_g.dpy, CLIPATOM(ioncore_g.dpy),
DefaultRootWindow(ioncore_g.dpy),
CurrentTime);
}
/*EXTL_DOC
* Set primary selection and cutbuffer0 to \var{p}.
*/
EXTL_EXPORT
void ioncore_set_selection(const char *p)
{
if(p==NULL)
ioncore_clear_selection();
else
ioncore_set_selection_n(p, strlen(p));
}
void ioncore_request_selection_for(Window win)
{
Atom a=XA_STRING;
if(continuation_set){
extl_unref_fn(continuation);
continuation_set=FALSE;
}
if(ioncore_g.use_mb)
a=XA_COMPOUND_TEXT(ioncore_g.dpy);
XConvertSelection(ioncore_g.dpy, CLIPATOM(ioncore_g.dpy), a,
ioncore_g.atom_selection, win, CurrentTime);
}
/*EXTL_DOC
* Request (string) selection. The function \var{fn} will be called
* with the selection when and if it is received.
*/
EXTL_EXPORT
void ioncore_request_selection(ExtlFn fn)
{
assert(ioncore_g.rootwins!=NULL);
ioncore_request_selection_for(ioncore_g.rootwins->dummy_win);
continuation=extl_ref_fn(fn);
continuation_set=TRUE;
}
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