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detailed documentation in x11-selection-mod.h

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This commit is contained in:
Ingo Krabbe 2020-09-14 22:36:18 +02:00
parent 5cacec27d7
commit 0223fb7474
3 changed files with 25 additions and 36 deletions
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13
src/cmd/devdraw/x11-screen.c
View file

@ -1576,23 +1576,12 @@ __xputsnarf(char *data)
static int
_xselect(XEvent *e)
{
char *name;
XEvent r;
XSelectionRequestEvent *xe;
Atom a[4];
memset(&r, 0, sizeof r);
xe = (XSelectionRequestEvent*)e;
if(0) fprint(2, "xselect target=%d requestor=%d property=%d selection=%d (sizeof atom=%d)\n",
xe->target, xe->requestor, xe->property, xe->selection, sizeof a[0]);
MODIFY_SELECTION(name, xe) {
name = XGetAtomName(_x.display, xe->target);
if(strcmp(name, "TIMESTAMP") != 0)
fprint(2, "%s: cannot handle selection request for '%s' (%d)\n",
argv0, name, (int)xe->target);
r.xselection.property = None;
}
if (name) XFree(name);
MODIFY_SELECTION(xe);
r.xselection.display = xe->display;
/* r.xselection.property filled above */
r.xselection.target = xe->target;

27
src/cmd/devdraw/x11-selection-mod.h
View file

@ -1,7 +1,16 @@
/* a few snippets for selections */
#define MODIFY_SELECTION(name, xe) \
/* I found such code in snarfer and in devdraw, so I moved it into this
definition: MODIFY_SELECTION, that works for both functions
x11-screen.c:/^_xselect/ and ../snarfer/snarfer.c:/^xselectionrequest/
This removes annoying "cannot handle selection requests" for types
'text/plain;charset=UTF-8' and 'text/uri-list', both now compared, ignoring
case. */
#define MODIFY_SELECTION(xe) do { \
Atom a[4]; \
char* name; \
if(0) fprint(2, "xselect target=%d requestor=%d property=%d selection=%d\n", \
xe->target, xe->requestor, xe->property, xe->selection); \
r.xselection.property = xe->property; \
name = 0x0; \
memset(&name, 0, sizeof name); \
if(xe->target == _x.targets){ \
a[0] = _x.utf8string; \
a[1] = XA_STRING; \
@ -18,10 +27,16 @@
|| (cistrcmp(name, "text/uri-list") == 0)))){ \
/* text/plain;charset=UTF-8 seems nonstandard but is used by Synergy */ \
/* if the target is STRING we're supposed to reply with Latin1 XXX */ \
xunlock(); \
qlock(&clip.lk); \
xlock(); \
XChangeProperty(_x.display, xe->requestor, xe->property, xe->target, \
8, PropModeReplace, (uchar*)clip.buf, strlen(clip.buf)); \
qunlock(&clip.lk); \
}else
}else { \
if(strcmp(name, "TIMESTAMP") != 0) \
fprint(2, "%s: cannot handle selection request for '%s' (%d)\n", \
argv0, name, (int)xe->target); \
r.xselection.property = None; \
} \
if (name) XFree(name); \
} \
while (0)

21
src/cmd/snarfer/snarfer.c
View file

@ -144,27 +144,12 @@ main(int argc, char **argv)
void
xselectionrequest(XEvent *e)
{
char *name;
Atom a[4];
XEvent r;
XSelectionRequestEvent *xe;
XDisplay *xd;
xd = _x.display;
memset(&r, 0, sizeof r);
xe = (XSelectionRequestEvent*)e;
if(0) fprint(2, "xselect target=%d requestor=%d property=%d selection=%d\n",
xe->target, xe->requestor, xe->property, xe->selection);
MODIFY_SELECTION(name, xe){
name = XGetAtomName(xd, xe->target);
if(strcmp(name, "TIMESTAMP") != 0)
fprint(2, "%s: cannot handle selection request for '%s' (%d)\n",
argv0, name, (int)xe->target);
r.xselection.property = None;
if (name) { XFree(name); name= 0x0; }
}
MODIFY_SELECTION(xe);
r.xselection.display = xe->display;
/* r.xselection.property filled above */
r.xselection.target = xe->target;
@ -173,8 +158,8 @@ if(0) fprint(2, "xselect target=%d requestor=%d property=%d selection=%d\n",
r.xselection.time = xe->time;
r.xselection.send_event = True;
r.xselection.selection = xe->selection;
XSendEvent(xd, xe->requestor, False, 0, &r);
XFlush(xd);
XSendEvent(_x.display, xe->requestor, False, 0, &r);
XFlush(_x.display);
}
char*