# st

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    commit f471a32d29ad9e5e06cf5e5d5efc8422483f535e
    parent 017af76f5c89fa1acf9b54ceaad2101dcfd880a0
    Author: Roberto E. Vargas Caballero <k0ga@shike2.com>
    Date:   Wed,  5 Sep 2012 21:55:45 +0200

    Unhighlight selection when selection is owner by other window

    st marks the active selection using reverse colors in the box selection, but
    once that another window becomes owner of the selection, it is very
    confusing that st keeps highlight the old selection. Usually terminal
    emulators remove the highlight when it is not valid anymore.

    X sends a SelectionClear event in this situation, so we only have to add a
    callback which unhighlight the selectin box.
    ---
     st.c |    9 +++++++++
     1 file changed, 9 insertions(+)
    Diffstat:
    Mst.c | 9+++++++++

    1 file changed, 9 insertions(+), 0 deletions(-)
    diff --git a/st.c b/st.c
    @@ -311,6 +311,7 @@ static void brelease(XEvent *);
     static void bpress(XEvent *);
     static void bmotion(XEvent *);
     static void selnotify(XEvent *);
    +static void selclear(XEvent *);
     static void selrequest(XEvent *);

     static void selinit(void);
    @@ -336,6 +337,7 @@ static void (*handler[LASTEvent])(XEvent *) = {
     	[MotionNotify] = bmotion,
     	[ButtonPress] = bpress,
     	[ButtonRelease] = brelease,
    +	[SelectionClear] = selclear,
     	[SelectionNotify] = selnotify,
     	[SelectionRequest] = selrequest,
     };
    @@ -612,6 +614,13 @@ selpaste() {
     	XConvertSelection(xw.dpy, XA_PRIMARY, sel.xtarget, XA_PRIMARY, xw.win, CurrentTime);
     }

    +void selclear(XEvent *e) {
    +	if(sel.bx == -1)
    +		return;
    +	sel.bx = -1;
    +	tsetdirt(sel.b.y, sel.e.y);
    +}
    +
     void
     selrequest(XEvent *e) {
     	XSelectionRequestEvent *xsre;