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Misc: Add properties to the registration window 

Add WM_CLASS, COMPTON_VERSION, and _NET_WM_PID properties to the
registration window, to ease the development of pcman's compton-conf.
This commit is contained in:
Richard Grenville 2013-11-10 10:13:18 +08:00
parent 46e6abdd2a
commit c02a867e6f
2 changed files with 45 additions and 5 deletions
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25
src/compton.c
View File

@ -4543,8 +4543,31 @@ register_cm(session_t *ps) {
if (ps->redirected)
XCompositeUnredirectWindow(ps->dpy, ps->reg_win, CompositeRedirectManual);
{
XClassHint *h = XAllocClassHint();
if (h) {
h->res_name = "compton";
h->res_class = "xcompmgr";
}
Xutf8SetWMProperties(ps->dpy, ps->reg_win, "xcompmgr", "xcompmgr",
NULL, 0, NULL, NULL, NULL);
NULL, 0, NULL, NULL, h);
cxfree(h);
}
// Set _NET_WM_PID
{
long pid = getpid();
if (!XChangeProperty(ps->dpy, ps->reg_win,
get_atom(ps, "_NET_WM_PID"), XA_CARDINAL, 32, PropModeReplace,
(unsigned char *) &pid, 1)) {
printf_errf("(): Failed to set _NET_WM_PID.");
}
}
// Set COMPTON_VERSION
if (!wid_set_text_prop(ps, ps->reg_win, get_atom(ps, "COMPTON_VERSION"), COMPTON_VERSION)) {
printf_errf("(): Failed to set COMPTON_VERSION.");
}
{
unsigned len = strlen(REGISTER_PROP) + 2;

23
src/compton.h
View File

@ -337,9 +337,7 @@ isdamagenotify(session_t *ps, const XEvent *ev) {
*/
static inline XTextProperty *
make_text_prop(session_t *ps, char *str) {
XTextProperty *pprop = malloc(sizeof(XTextProperty));
if (!pprop)
printf_errfq(1, "(): Failed to allocate memory.");
XTextProperty *pprop = cmalloc(1, XTextProperty);
if (XmbTextListToTextProperty(ps->dpy, &str, 1, XStringStyle, pprop)) {
cxfree(pprop->value);
@ -350,6 +348,25 @@ make_text_prop(session_t *ps, char *str) {
return pprop;
}
/**
* Set a single-string text property on a window.
*/
static inline bool
wid_set_text_prop(session_t *ps, Window wid, Atom prop_atom, char *str) {
XTextProperty *pprop = make_text_prop(ps, str);
if (!pprop) {
printf_errf("(\"%s\"): Failed to make text property.", str);
return false;
}
XSetTextProperty(ps->dpy, wid, pprop, prop_atom);
cxfree(pprop->value);
cxfree(pprop);
return true;
}
static void
run_fade(session_t *ps, win *w, unsigned steps);