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Implement most ICCCM rules for selection handling.

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ICCCM mandates the use of real timestamps to interact with the
selection, to rule out race conditions if the clients are run at
different speeds. I have implemented the low hanging fruit, putting the
timestamps into text selection. Also, ICCCM mandates a check for whether
XSetSelectionOwner() worked. Not sure my version is correct, though.
This commit is contained in:
Markus Wichmann 2015-04-11 21:21:34 +02:00 committed by Roberto E. Vargas Caballero
parent 23ed12857f
commit 42fa1f5ce4
1 changed files with 13 additions and 8 deletions
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21
st.c
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@ -423,7 +423,7 @@ static void xsettitle(char *);
static void xresettitle(void); static void xresettitle(void);
static void xsetpointermotion(int); static void xsetpointermotion(int);
static void xseturgency(int); static void xseturgency(int);
static void xsetsel(char *); static void xsetsel(char *, Time);
static void xtermclear(int, int, int, int); static void xtermclear(int, int, int, int);
static void xunloadfont(Font *); static void xunloadfont(Font *);
static void xunloadfonts(void); static void xunloadfonts(void);
@ -449,7 +449,7 @@ static void selinit(void);
static void selnormalize(void); static void selnormalize(void);
static inline bool selected(int, int); static inline bool selected(int, int);
static char *getsel(void); static char *getsel(void);
static void selcopy(void); static void selcopy(Time);
static void selscroll(int, int); static void selscroll(int, int);
static void selsnap(int, int *, int *, int); static void selsnap(int, int *, int *, int);
static int x2col(int); static int x2col(int);
@ -984,8 +984,8 @@ getsel(void) {
} }
void void
selcopy(void) { selcopy(Time t) {
xsetsel(getsel()); xsetsel(getsel(), t);
} }
void void
@ -997,7 +997,7 @@ selnotify(XEvent *e) {
XSelectionEvent *xsev; XSelectionEvent *xsev;
ofs = 0; ofs = 0;
xsev = (XSelectionEvent *)e; xsev = &e->xselection;
if (xsev->property == None) if (xsev->property == None)
return; return;
do { do {
@ -1083,6 +1083,9 @@ selrequest(XEvent *e) {
xev.selection = xsre->selection; xev.selection = xsre->selection;
xev.target = xsre->target; xev.target = xsre->target;
xev.time = xsre->time; xev.time = xsre->time;
if (xsre->property == None)
xsre->property = xsre->target;
/* reject */ /* reject */
xev.property = None; xev.property = None;
@ -1125,11 +1128,13 @@ selrequest(XEvent *e) {
} }
void void
xsetsel(char *str) { xsetsel(char *str, Time t) {
free(sel.primary); free(sel.primary);
sel.primary = str; sel.primary = str;
XSetSelectionOwner(xw.dpy, XA_PRIMARY, xw.win, CurrentTime); XSetSelectionOwner(xw.dpy, XA_PRIMARY, xw.win, t);
if (XGetSelectionOwner(xw.dpy, XA_PRIMARY) != xw.win)
selclear(0);
} }
void void
@ -1146,7 +1151,7 @@ brelease(XEvent *e) {
selclear(NULL); selclear(NULL);
} else { } else {
getbuttoninfo(e); getbuttoninfo(e);
selcopy(); selcopy(e->xbutton.time);
} }
sel.mode = 0; sel.mode = 0;
tsetdirt(sel.nb.y, sel.ne.y); tsetdirt(sel.nb.y, sel.ne.y);