# st

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    commit d693b304c78708acb911773fe24971ef969d237e
    parent 3a50a4fd931ed58454b680c9fc5c1bc2278e67f3
    Author: Aurélien Aptel <aurelien.aptel@gmail.com>
    Date:   Wed, 13 Oct 2010 01:24:11 +0200

    applied xclipboard patch. thx David Isaac Wolinsky.

    Diffstat:
    Mst.c | 130+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++----

    1 file changed, 124 insertions(+), 6 deletions(-)
    diff --git a/st.c b/st.c
    @@ -17,6 +17,7 @@
     #include <sys/wait.h>
     #include <unistd.h>
     #include <X11/Xlib.h>
    +#include <X11/Xatom.h>
     #include <X11/keysym.h>
     #include <X11/Xutil.h>

    @@ -199,7 +200,8 @@ static void focus(XEvent *);
     static void brelease(XEvent *);
     static void bpress(XEvent *);
     static void bmotion(XEvent *);
    -
    +static void selection_notify(XEvent *);
    +static void selection_request(XEvent *);

     static void (*handler[LASTEvent])(XEvent *) = {
     	[KeyPress] = kpress,
    @@ -212,6 +214,8 @@ static void (*handler[LASTEvent])(XEvent *) = {
     	[MotionNotify] = bmotion,
     	[ButtonPress] = bpress,
     	[ButtonRelease] = brelease,
    +	[SelectionNotify] = selection_notify,
    +	[SelectionRequest] = selection_request,
     };

     /* Globals */
    @@ -278,15 +282,129 @@ static char *getseltext() {
     	return str;
     }

    -/* TODO: use X11 clipboard */
    +static void selection_notify(XEvent *e) {
    +	unsigned long nitems;
    +	unsigned long length;
    +	int format, res;
    +	unsigned char *data;
    +	Atom type;
    +
    +	res = XGetWindowProperty(xw.dis, xw.win, XA_PRIMARY, 0, 0, False,
    +				AnyPropertyType, &type, &format, &nitems, &length, &data);
    +	switch(res) {
    +		case BadAtom:
    +		case BadValue:
    +		case BadWindow:
    +			fprintf(stderr, "Invalid paste, XGetWindowProperty0");
    +			return;
    +	}
    +
    +	res = XGetWindowProperty(xw.dis, xw.win, XA_PRIMARY, 0, length, False,
    +				AnyPropertyType, &type, &format, &nitems, &length, &data);
    +	switch(res) {
    +		case BadAtom:
    +		case BadValue:
    +		case BadWindow:
    +			fprintf(stderr, "Invalid paste, XGetWindowProperty0");
    +			return;
    +	}
    +
    +	if(data) {
    +		ttywrite((const char *) data, nitems * format / 8);
    +		XFree(data);
    +	}
    +}
    +
    +static void selpaste() {
    +	XConvertSelection(xw.dis, XA_PRIMARY, XA_STRING, XA_PRIMARY, xw.win, CurrentTime);
    +}
    +
    +static void selection_request(XEvent *e)
    +{
    +	XSelectionRequestEvent *xsre;
    +	XSelectionEvent xev;
    +	int res;
    +	Atom xa_targets;
    +
    +	xsre = (XSelectionRequestEvent *) e;
    +	xev.type = SelectionNotify;
    +	xev.requestor = xsre->requestor;
    +	xev.selection = xsre->selection;
    +	xev.target = xsre->target;
    +	xev.time = xsre->time;
    +	/* reject */
    +	xev.property = None;
    +
    +	xa_targets = XInternAtom(xw.dis, "TARGETS", 0);
    +	if(xsre->target == xa_targets) {
    +		/* respond with the supported type */
    +		Atom string = XA_STRING;
    +		res = XChangeProperty(xsre->display, xsre->requestor, xsre->property, XA_ATOM, 32,
    +				PropModeReplace, (unsigned char *) &string, 1);
    +		switch(res) {
    +			case BadAlloc:
    +			case BadAtom:
    +			case BadMatch:
    +			case BadValue:
    +			case BadWindow:
    +				fprintf(stderr, "Error in selection_request, TARGETS");
    +				break;
    +			default:
    +				xev.property = xsre->property;
    +		}
    +	} else if(xsre->target == XA_STRING) {
    +		res = XChangeProperty(xsre->display, xsre->requestor, xsre->property,
    +				xsre->target, 8, PropModeReplace, (unsigned char *) sel.clip,
    +				strlen(sel.clip));
    +		switch(res) {
    +			case BadAlloc:
    +			case BadAtom:
    +			case BadMatch:
    +			case BadValue:
    +			case BadWindow:
    +				fprintf(stderr, "Error in selection_request, XA_STRING");
    +				break;
    +			default:
    +			 xev.property = xsre->property;
    +		}
    +	}
    +
    +	/* all done, send a notification to the listener */
    +	res = XSendEvent(xsre->display, xsre->requestor, True, 0, (XEvent *) &xev);
    +	switch(res) {
    +		case 0:
    +		case BadValue:
    +		case BadWindow:
    +			fprintf(stderr, "Error in selection_requested, XSendEvent");
    +	}
    +}
    +
     static void selcopy(char *str) {
    +	/* register the selection for both the clipboard and the primary */
    +	Atom clipboard;
    +	int res;
    +
     	free(sel.clip);
     	sel.clip = str;
    -}

    -static void selpaste() {
    -	if(sel.clip)
    -		ttywrite(sel.clip, strlen(sel.clip));
    +	res = XSetSelectionOwner(xw.dis, XA_PRIMARY, xw.win, CurrentTime);
    +	switch(res) {
    +		case BadAtom:
    +		case BadWindow:
    +			fprintf(stderr, "Invalid copy, XSetSelectionOwner");
    +			return;
    +	}
    +
    +	clipboard = XInternAtom(xw.dis, "CLIPBOARD", 0);
    +	res = XSetSelectionOwner(xw.dis, clipboard, xw.win, CurrentTime);
    +	switch(res) {
    +		case BadAtom:
    +		case BadWindow:
    +			fprintf(stderr, "Invalid copy, XSetSelectionOwner");
    +			return;
    +	}
    +
    +	XFlush(xw.dis);
     }

     /* TODO: doubleclick to select word */