mirror of https://github.com/yshui/picom.git
Feature: WM_WINDOW_ROLE matching
- Add support of matching WM_WINDOW_ROLE value. Thanks to Vladimir A. Pavlov! - Thanks to Vladimir A. Pavlov for reporting the issues caused by missing client window, fixed in the last commit! - Fix a memory leak in wid_get_text_prop() and wid_get_name(). Xlib documentation did not mention how to free the value XGetTextProperty() returns, so my fix could lead to troubles. - Set focus out in unmap_win(), and add w->leader, to prepare for subsidiary window detection. - Abstract update of a single string window property to win_get_prop_str(). - Change wid_get_name() to rely on wid_get_text_prop() as much as possible. - Correct a typo in win_get_prop_str() that could cause unnecessary update of shadow state and window focus.
This commit is contained in:
Richard Grenville
parent
983803aa9f
commit
a7189263e1
121
src/compton.c
121
src/compton.c
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@ -10,22 +10,6 @@
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#include "compton.h"
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// === Macros ===
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// #define MSTR_(s) #s
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// #define MSTR(s) MSTR_(s)
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#define printf_dbg(format, ...) \
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printf(format, ## __VA_ARGS__); \
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fflush(stdout)
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#define printf_dbgf(format, ...) \
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printf_dbg("%s" format, __func__, ## __VA_ARGS__)
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// Use #s here to prevent macro expansion
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/// Macro used for shortening some debugging code.
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#define CASESTRRET(s) case s: return #s
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// === Global constants ===
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/// Name strings for window types.
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@ -627,6 +611,9 @@ win_match_once(win *w, const wincond_t *cond) {
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case CONDTGT_CLASSG:
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target = w->class_general;
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break;
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case CONDTGT_ROLE:
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target = w->role;
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break;
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}
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if (!target) {
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@ -736,6 +723,9 @@ condlst_add(wincond_t **pcondlst, const char *pattern) {
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case 'g':
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cond->target = CONDTGT_CLASSG;
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break;
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case 'r':
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cond->target = CONDTGT_ROLE;
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break;
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default:
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printf("Pattern \"%s\": Target \"%c\" invalid.\n",
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pattern, pattern[0]);
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@ -1849,7 +1839,7 @@ map_win(session_t *ps, Window id) {
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cw = w->id;
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w->wmwin = !w->a.override_redirect;
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#ifdef DEBUG_CLIENTWIN
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printf("find_client_win(%#010lx): client self (%s)\n", w->id,
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printf("find_client_win(%#010lx): client self (%s)\n", w->id,
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(w->wmwin ? "wmwin": "override-redirected"));
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#endif
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}
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@ -1873,6 +1863,7 @@ map_win(session_t *ps, Window id) {
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if (ps->o.track_wdata) {
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win_get_name(ps, w);
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win_get_class(ps, w);
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win_get_role(ps, w);
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}
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// Occasionally compton does not seem able to get a FocusIn event from
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@ -1958,6 +1949,9 @@ unmap_win(session_t *ps, Window id) {
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w->a.map_state = IsUnmapped;
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// Set focus out
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win_set_focused(ps, w, false);
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// Fading out
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w->flags |= WFLAG_OPCT_CHANGE;
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set_fade_callback(ps, w, unmap_callback, false);
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@ -2291,6 +2285,7 @@ add_win(session_t *ps, Window id, Window prev) {
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new->name = NULL;
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new->class_instance = NULL;
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new->class_general = NULL;
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new->role = NULL;
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new->cache_sblst = NULL;
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new->cache_fblst = NULL;
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new->cache_fcblst = NULL;
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@ -2323,6 +2318,7 @@ add_win(session_t *ps, Window id, Window prev) {
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new->focused = false;
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new->focused_real = false;
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new->leader = None;
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new->destroyed = false;
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new->need_configure = false;
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new->window_type = WINTYPE_UNKNOWN;
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@ -2665,7 +2661,7 @@ expose_root(session_t *ps, XRectangle *rects, int nrects) {
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static bool
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wid_get_text_prop(session_t *ps, Window wid, Atom prop,
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char ***pstrlst, int *pnstr) {
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XTextProperty text_prop;
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XTextProperty text_prop = { NULL, None, 0, 0 };
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if (!(XGetTextProperty(ps->dpy, wid, &text_prop, prop) && text_prop.value))
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return false;
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@ -2676,9 +2672,11 @@ wid_get_text_prop(session_t *ps, Window wid, Atom prop,
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*pnstr = 0;
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if (*pstrlst)
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XFreeStringList(*pstrlst);
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XFree(text_prop.value);
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return false;
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}
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XFree(text_prop.value);
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return true;
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}
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@ -2687,14 +2685,11 @@ wid_get_text_prop(session_t *ps, Window wid, Atom prop,
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*/
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static bool
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wid_get_name(session_t *ps, Window wid, char **name) {
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XTextProperty text_prop;
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XTextProperty text_prop = { NULL, None, 0, 0 };
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char **strlst = NULL;
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int nstr = 0;
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// set_ignore_next(ps);
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if (!(XGetTextProperty(ps->dpy, wid, &text_prop, ps->atom_name_ewmh)
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&& text_prop.value)) {
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// set_ignore_next(ps);
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if (!(wid_get_text_prop(ps, wid, ps->atom_name_ewmh, &strlst, &nstr))) {
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#ifdef DEBUG_WINDATA
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printf_dbgf("(%#010lx): _NET_WM_NAME unset, falling back to WM_NAME.\n", wid);
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#endif
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@ -2702,14 +2697,17 @@ wid_get_name(session_t *ps, Window wid, char **name) {
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if (!(XGetWMName(ps->dpy, wid, &text_prop) && text_prop.value)) {
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return false;
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}
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if (Success !=
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XmbTextPropertyToTextList(ps->dpy, &text_prop, &strlst, &nstr)
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|| !nstr || !strlst) {
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if (strlst)
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XFreeStringList(strlst);
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XFree(text_prop.value);
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return false;
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}
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XFree(text_prop.value);
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}
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if (Success !=
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XmbTextPropertyToTextList(ps->dpy, &text_prop, &strlst, &nstr)
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|| !nstr || !strlst) {
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if (strlst)
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XFreeStringList(strlst);
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return false;
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}
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*name = mstrcpy(strlst[0]);
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XFreeStringList(strlst);
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@ -2718,38 +2716,53 @@ wid_get_name(session_t *ps, Window wid, char **name) {
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}
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/**
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* Retrieve the name of a window and update its <code>win</code>
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* Get the role of a window from window ID.
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*/
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static bool
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wid_get_role(session_t *ps, Window wid, char **role) {
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char **strlst = NULL;
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int nstr = 0;
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if (!wid_get_text_prop(ps, wid, ps->atom_role, &strlst, &nstr)) {
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return false;
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}
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*role = mstrcpy(strlst[0]);
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XFreeStringList(strlst);
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return true;
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}
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/**
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* Retrieve a string property of a window and update its <code>win</code>
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* structure.
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*/
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static int
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win_get_name(session_t *ps, win *w) {
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bool ret;
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char *name_old = w->name;
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win_get_prop_str(session_t *ps, win *w, char **tgt,
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bool (*func_wid_get_prop_str)(session_t *ps, Window wid, char **tgt)) {
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int ret = -1;
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char *prop_old = *tgt;
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// Can't do anything if there's no client window
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if (!w->client_win)
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return false;
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// Get the name
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ret = wid_get_name(ps, w->client_win, &w->name);
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// Get the property
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ret = func_wid_get_prop_str(ps, w->client_win, tgt);
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// Return -1 if wid_get_name() failed, 0 if name didn't change, 1 if
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// it changes
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// Return -1 if func_wid_get_prop_str() failed, 0 if the property
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// doesn't change, 1 if it changes
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if (!ret)
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ret = -1;
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else if (name_old && !strcmp(w->name, name_old))
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else if (prop_old && !strcmp(*tgt, prop_old))
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ret = 0;
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else
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ret = 1;
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// Keep the old name if there's no new one
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if (w->name != name_old)
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free(name_old);
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#ifdef DEBUG_WINDATA
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printf_dbgf("(%#010lx): client = %#010lx, name = \"%s\", "
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"ret = %d\n", w->id, w->client_win, w->name, ret);
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#endif
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// Keep the old property if there's no new one
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if (*tgt != prop_old)
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free(prop_old);
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return ret;
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}
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@ -3138,6 +3151,15 @@ ev_property_notify(session_t *ps, XPropertyEvent *ev) {
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}
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}
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// If role changes
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if (ps->o.track_wdata && ps->atom_role == ev->atom) {
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win *w = find_toplevel(ps, ev->window);
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if (w && 1 == win_get_role(ps, w)) {
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determine_shadow(ps, w);
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win_update_focused(ps, w);
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}
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}
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// If _COMPTON_SHADOW changes
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if (ps->o.respect_prop_shadow && ps->atom_compton_shadow == ev->atom) {
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win *w = find_win(ps, ev->window);
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@ -3428,7 +3450,8 @@ usage(void) {
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" condition = <target>:<type>[<flags>]:<pattern>\n"
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"\n"
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" <target> is one of \"n\" (window name), \"i\" (window class\n"
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" instance), and \"g\" (window general class)\n"
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" instance), \"g\" (window general class), and \"r\"\n"
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" (window role).\n"
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"\n"
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" <type> is one of \"e\" (exact match), \"a\" (match anywhere),\n"
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" \"s\" (match from start), \"w\" (wildcard), and \"p\" (PCRE\n"
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@ -4148,6 +4171,7 @@ init_atoms(session_t *ps) {
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ps->atom_name = XA_WM_NAME;
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ps->atom_name_ewmh = XInternAtom(ps->dpy, "_NET_WM_NAME", False);
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ps->atom_class = XA_WM_CLASS;
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ps->atom_role = XInternAtom(ps->dpy, "WM_WINDOW_ROLE", False);
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ps->atom_transient = XA_WM_TRANSIENT_FOR;
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ps->atom_ewmh_active_win = XInternAtom(ps->dpy, "_NET_ACTIVE_WINDOW", False);
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ps->atom_compton_shadow = XInternAtom(ps->dpy, "_COMPTON_SHADOW", False);
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@ -4684,6 +4708,7 @@ session_init(session_t *ps_old, int argc, char **argv) {
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.atom_name = None,
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.atom_name_ewmh = None,
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.atom_class = None,
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.atom_role = None,
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.atom_transient = None,
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.atom_ewmh_active_win = None,
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.atom_compton_shadow = None,
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@ -120,6 +120,22 @@
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// Window opacity / dim state changed
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#define WFLAG_OPCT_CHANGE 0x0004
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// === Macros ===
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// #define MSTR_(s) #s
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// #define MSTR(s) MSTR_(s)
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#define printf_dbg(format, ...) \
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printf(format, ## __VA_ARGS__); \
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fflush(stdout)
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#define printf_dbgf(format, ...) \
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printf_dbg("%s" format, __func__, ## __VA_ARGS__)
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// Use #s here to prevent macro expansion
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/// Macro used for shortening some debugging code.
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#define CASESTRRET(s) case s: return #s
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// === Types ===
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typedef uint32_t opacity_t;
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@ -169,6 +185,7 @@ enum wincond_target {
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CONDTGT_NAME,
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CONDTGT_CLASSI,
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CONDTGT_CLASSG,
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CONDTGT_ROLE,
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};
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enum wincond_type {
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@ -491,6 +508,8 @@ typedef struct {
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Atom atom_name_ewmh;
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/// Atom of property <code>WM_CLASS</code>.
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Atom atom_class;
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/// Atom of property <code>WM_WINDOW_ROLE</code>.
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Atom atom_role;
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/// Atom of property <code>WM_TRANSIENT_FOR</code>.
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Atom atom_transient;
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/// Atom of property <code>_NET_ACTIVE_WINDOW</code>.
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@ -505,7 +524,10 @@ typedef struct {
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/// Structure representing a top-level window compton manages.
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typedef struct _win {
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// Next structure in the linked list.
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struct _win *next;
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// ID of the top-level frame window.
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Window id;
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/// ID of the top-level client window of the window.
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Window client_win;
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@ -527,6 +549,8 @@ typedef struct _win {
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bool focused;
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/// Whether the window is actually focused.
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bool focused_real;
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/// Leader window ID of the window.
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Window leader;
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/// Whether the window has been destroyed.
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bool destroyed;
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/// Cached width/height of the window including border.
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@ -539,9 +563,14 @@ typedef struct _win {
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bool to_paint;
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// Blacklist related members
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/// Name of the window.
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char *name;
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/// Window instance class of the window.
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char *class_instance;
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/// Window general class of the window.
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char *class_general;
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/// <code>WM_WINDOW_ROLE</code> value of the window.
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char *role;
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wincond_t *cache_sblst;
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wincond_t *cache_fblst;
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wincond_t *cache_fcblst;
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@ -1490,8 +1519,36 @@ wid_get_text_prop(session_t *ps, Window wid, Atom prop,
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static bool
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wid_get_name(session_t *ps, Window w, char **name);
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static bool
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wid_get_role(session_t *ps, Window w, char **role);
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static int
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win_get_name(session_t *ps, win *w);
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win_get_prop_str(session_t *ps, win *w, char **tgt,
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bool (*func_wid_get_prop_str)(session_t *ps, Window wid, char **tgt));
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static inline int
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win_get_name(session_t *ps, win *w) {
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int ret = win_get_prop_str(ps, w, &w->name, wid_get_name);
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#ifdef DEBUG_WINDATA
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printf_dbgf("(%#010lx): client = %#010lx, name = \"%s\", "
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"ret = %d\n", w->id, w->client_win, w->name, ret);
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#endif
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return ret;
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}
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static inline int
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win_get_role(session_t *ps, win *w) {
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int ret = win_get_prop_str(ps, w, &w->role, wid_get_role);
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#ifdef DEBUG_WINDATA
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printf_dbgf("(%#010lx): client = %#010lx, role = \"%s\", "
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"ret = %d\n", w->id, w->client_win, w->role, ret);
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#endif
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return ret;
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}
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static bool
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win_get_class(session_t *ps, win *w);
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