Improvement: Support reading _NET_WM_OPACITY from client windows
- Some WMs don't respect Keith Packard's proposal of _NET_WM_WINDOW_OPACITY, and do not copy _NET_WM_OPACITY attribute of a client window to its frame windows, thus cause opacity set by non-override-redirect windows to have no effect. This commit adds support for reading _NET_WM_OPACITY from client windows if running with --detect-client-opacity. Thanks to pvanek for reporting. - Change Makefile logic to determine options from 3 variables (NO_LIBCONFIG, NO_REGEX_PCRE, NO_REGEX_PCRE_JIT) instead of CFG to ensure compatibility when we add new options. CFG variable is no longer been respected.
This commit is contained in:
Richard Grenville
parent
b8f3d22a32
commit
1306b1591f
40
Makefile
40
Makefile
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@ -4,20 +4,38 @@ PREFIX ?= /usr
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BINDIR ?= $(PREFIX)/bin
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MANDIR ?= $(PREFIX)/share/man/man1
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PACKAGES = x11 xcomposite xfixes xdamage xrender xext libconfig
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LIBS = $(shell pkg-config --libs $(PACKAGES)) -lm
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LIBS += $(shell pcre-config --libs)
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INCS = $(shell pkg-config --cflags $(PACKAGES))
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INCS += $(shell pcre-config --cflags)
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PACKAGES = x11 xcomposite xfixes xdamage xrender xext
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LIBS = -lm
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INCS =
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# Parse configuration flags
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CFG =
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ifeq "$(NO_LIBCONFIG)" ""
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CFG += -DCONFIG_LIBCONFIG
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PACKAGES += libconfig
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# libconfig-1.3* does not define LIBCONFIG_VER* macros, so we use
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# pkg-config to determine its version here
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CFG += $(shell pkg-config --atleast-version=1.4 libconfig || echo '-DCONFIG_LIBCONFIG_LEGACY')
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endif
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ifeq "$(NO_REGEX_PCRE)" ""
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CFG += -DCONFIG_REGEX_PCRE
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LIBS += $(shell pcre-config --libs)
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INCS += $(shell pcre-config --cflags)
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ifeq "$(NO_REGEX_PCRE_JIT)" ""
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CFG += -DCONFIG_REGEX_PCRE_JIT
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endif
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endif
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CFLAGS += $(CFG)
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LIBS += $(shell pkg-config --libs $(PACKAGES))
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INCS += $(shell pkg-config --cflags $(PACKAGES))
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CFLAGS += -Wall -std=c99
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OBJS = compton.o
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CFG ?= -DCONFIG_LIBCONFIG -DCONFIG_REGEX_PCRE -DCONFIG_REGEX_PCRE_JIT
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# libconfig-1.3* does not define LIBCONFIG_VER* macros, so we use pkg-config
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# to determine its version here
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CFG += $(shell pkg-config --atleast-version=1.4 libconfig || echo '-DCONFIG_LIBCONFIG_LEGACY')
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CFLAGS += $(CFG)
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%.o: src/%.c src/%.h
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$(CC) $(CFLAGS) $(INCS) -c src/$*.c
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@ -18,7 +18,7 @@ shadow-ignore-shaped = true;
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menu-opacity = 0.8;
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inactive-opacity = 0.8;
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frame-opacity = 0.7;
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inactive-opacity-override = true;
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inactive-opacity-override = false;
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# Fading
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fading = true;
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@ -31,6 +31,7 @@ fade-out-step = 0.03;
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mark-wmwin-focused = true;
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mark-ovredir-focused = true;
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detect-rounded-corners = true;
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detect-client-opacity = false;
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# Window type settings
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wintypes:
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@ -142,6 +142,7 @@ static options_t opts = {
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.inactive_opacity = 0,
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.inactive_opacity_override = False,
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.frame_opacity = 0.0,
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.detect_client_opacity = False,
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.inactive_dim = 0.0,
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.track_focus = False,
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@ -942,7 +943,8 @@ determine_evmask(Display *dpy, Window wid, win_evmode_t mode) {
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}
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if (WIN_EVMODE_CLIENT == mode || find_toplevel(dpy, wid)) {
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if (opts.frame_opacity || opts.track_wdata)
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if (opts.frame_opacity || opts.track_wdata
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|| opts.detect_client_opacity)
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evmask |= PropertyChangeMask;
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}
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@ -1757,14 +1759,14 @@ unmap_win(Display *dpy, Window id, Bool fade) {
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}
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static opacity_t
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get_opacity_prop(Display *dpy, win *w, opacity_t def) {
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wid_get_opacity_prop(Display *dpy, Window wid, opacity_t def) {
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Atom actual;
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int format;
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unsigned long n, left;
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unsigned char *data;
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int result = XGetWindowProperty(
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dpy, w->id, opacity_atom, 0L, 1L, False,
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dpy, wid, opacity_atom, 0L, 1L, False,
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XA_CARDINAL, &actual, &format, &n, &left, &data);
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if (result == Success && data != NULL) {
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@ -1838,13 +1840,18 @@ calc_opacity(Display *dpy, win *w, Bool refetch_prop) {
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// Do not refetch the opacity window attribute unless necessary, this
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// is probably an expensive operation in some cases
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if (refetch_prop) {
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w->opacity_prop = get_opacity_prop(dpy, w, OPAQUE);
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w->opacity_prop = wid_get_opacity_prop(dpy, w->id, OPAQUE);
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if (!opts.detect_client_opacity || !w->client_win
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|| w->id == w->client_win)
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w->opacity_prop_client = OPAQUE;
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else
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w->opacity_prop_client = wid_get_opacity_prop(dpy, w->client_win,
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OPAQUE);
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}
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if (OPAQUE == (opacity = w->opacity_prop)) {
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if (1.0 != opts.wintype_opacity[w->window_type]) {
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opacity = opts.wintype_opacity[w->window_type] * OPAQUE;
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}
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if (OPAQUE == (opacity = w->opacity_prop)
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&& OPAQUE == (opacity = w->opacity_prop_client)) {
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opacity = opts.wintype_opacity[w->window_type] * OPAQUE;
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}
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// Respect inactive_opacity in some cases
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@ -1945,12 +1952,13 @@ static void
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mark_client_win(Display *dpy, win *w, Window client) {
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w->client_win = client;
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XSelectInput(dpy, client, determine_evmask(dpy, client, WIN_EVMODE_CLIENT));
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// Get the frame width and monitor further frame width changes on client
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// window if necessary
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if (opts.frame_opacity) {
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get_frame_extents(dpy, w, client);
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}
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XSelectInput(dpy, client, determine_evmask(dpy, client, WIN_EVMODE_CLIENT));
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// Detect window type here
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if (WINTYPE_UNKNOWN == w->window_type)
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@ -2037,6 +2045,7 @@ add_win(Display *dpy, Window id, Window prev, Bool override_redirect) {
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new->opacity_tgt = 0;
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new->opacity_cur = OPAQUE;
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new->opacity_prop = OPAQUE;
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new->opacity_prop_client = OPAQUE;
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new->fade = False;
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new->fade_callback = NULL;
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new->fade_fin = False;
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@ -2777,12 +2786,17 @@ ev_property_notify(XPropertyEvent *ev) {
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}
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}
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/* check if Trans property was changed */
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// If _NET_WM_OPACITY changes
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if (ev->atom == opacity_atom) {
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/* reset mode and redraw window */
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win *w = find_win(dpy, ev->window);
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win *w = NULL;
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if ((w = find_win(dpy, ev->window)))
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w->opacity_prop = wid_get_opacity_prop(dpy, w->id, OPAQUE);
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else if (opts.detect_client_opacity
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&& (w = find_toplevel(dpy, ev->window)))
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w->opacity_prop_client = wid_get_opacity_prop(dpy, w->client_win,
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OPAQUE);
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if (w) {
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calc_opacity(dpy, w, True);
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calc_opacity(dpy, w, False);
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}
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}
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@ -3007,6 +3021,10 @@ usage(void) {
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"--detect-rounded-corners\n"
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" Try to detect windows with rounded corners and don't consider\n"
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" them shaped windows.\n"
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"--detect-client-opacity\n"
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" Detect _NET_WM_OPACITY on client windows, useful for window\n"
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" managers not passing _NET_WM_OPACITY of client windows to frame\n"
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" windows.\n"
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"\n"
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"Format of a condition:\n"
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"\n"
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@ -3267,6 +3285,9 @@ parse_config(char *cpath, struct options_tmp *pcfgtmp) {
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// --detect-rounded-corners
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lcfg_lookup_bool(&cfg, "detect-rounded-corners",
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&opts.detect_rounded_corners);
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// --detect-client-opacity
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lcfg_lookup_bool(&cfg, "detect-client-opacity",
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&opts.detect_client_opacity);
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// --shadow-exclude
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{
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config_setting_t *setting =
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@ -3329,6 +3350,7 @@ get_cfg(int argc, char *const *argv) {
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{ "no-fading-openclose", no_argument, NULL, 265 },
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{ "shadow-ignore-shaped", no_argument, NULL, 266 },
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{ "detect-rounded-corners", no_argument, NULL, 267 },
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{ "detect-client-opacity", no_argument, NULL, 268 },
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// Must terminate with a NULL entry
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{ NULL, 0, NULL, 0 },
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};
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@ -3483,6 +3505,10 @@ get_cfg(int argc, char *const *argv) {
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// --detect-rounded-corners
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opts.detect_rounded_corners = True;
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break;
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case 268:
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// --detect-client-opacity
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opts.detect_client_opacity = True;
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break;
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default:
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usage();
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break;
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@ -198,6 +198,10 @@ typedef struct _win {
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opacity_t opacity_cur;
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/// Cached value of opacity window attribute.
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opacity_t opacity_prop;
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/// Cached value of opacity window attribute on client window. For
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/// broken window managers not transferring client window's
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/// _NET_WM_OPACITY value
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opacity_t opacity_prop_client;
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/// Alpha mask Picture to render window with opacity.
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Picture alpha_pict;
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@ -302,7 +306,12 @@ typedef struct _options {
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/// Whether inactive_opacity overrides the opacity set by window
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/// attributes.
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Bool inactive_opacity_override;
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/// Frame opacity. Relative to window opacity, also affects shadow
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/// opacity.
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double frame_opacity;
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/// Whether to detect _NET_WM_OPACITY on client windows. Used on window
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/// managers that don't pass _NET_WM_OPACITY to frame windows.
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Bool detect_client_opacity;
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/// How much to dim an inactive window. 0.0 - 1.0, 0 to disable.
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double inactive_dim;
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@ -780,7 +789,7 @@ static void
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unmap_win(Display *dpy, Window id, Bool fade);
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static opacity_t
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get_opacity_prop(Display *dpy, win *w, opacity_t def);
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wid_get_opacity_prop(Display *dpy, Window wid, opacity_t def);
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static double
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get_opacity_percent(Display *dpy, win *w);
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