mirror of https://github.com/yshui/picom.git
72 lines
2.7 KiB
C
72 lines
2.7 KiB
C
// SPDX-License-Identifier: MIT
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/*
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* Compton - a compositor for X11
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*
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* Based on `xcompmgr` - Copyright (c) 2003, Keith Packard
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*
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* Copyright (c) 2011-2013, Christopher Jeffrey
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* See LICENSE-mit for more information.
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*
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*/
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#pragma once
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#include <stdbool.h>
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#include <stddef.h>
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#include <xcb/xproto.h>
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typedef struct _c2_lptr c2_lptr_t;
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typedef struct session session_t;
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struct c2_state;
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/// Per-window state used for c2 condition matching.
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struct c2_window_state {
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/// An array of window properties. Exact how many
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/// properties there are is stored inside `struct c2_state`.
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struct c2_property_value *values;
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};
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struct atom;
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struct managed_win;
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typedef void (*c2_userdata_free)(void *);
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c2_lptr_t *c2_parse(c2_lptr_t **pcondlst, const char *pattern, void *data);
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c2_lptr_t *c2_free_lptr(c2_lptr_t *lp, c2_userdata_free f);
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/// Create a new c2_state object. This is used for maintaining the internal state
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/// used for c2 condition matching. This state object holds a reference to the
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/// pass atom object, thus the atom object should be kept alive as long as the
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/// state object is alive.
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struct c2_state *c2_state_new(struct atom *atoms);
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void c2_state_free(struct c2_state *state);
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/// Returns true if value of the property is used in any condition.
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bool c2_state_is_property_tracked(struct c2_state *state, xcb_atom_t property);
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void c2_window_state_init(const struct c2_state *state, struct c2_window_state *window_state);
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void c2_window_state_destroy(const struct c2_state *state, struct c2_window_state *window_state);
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void c2_window_state_mark_dirty(const struct c2_state *state,
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struct c2_window_state *window_state, xcb_atom_t property,
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bool is_on_client);
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void c2_window_state_update(struct c2_state *state, struct c2_window_state *window_state,
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xcb_connection_t *c, xcb_window_t client_win,
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xcb_window_t frame_win);
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bool c2_match(struct c2_state *state, const struct managed_win *w,
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const c2_lptr_t *condlst, void **pdata);
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bool c2_list_postprocess(struct c2_state *state, xcb_connection_t *c, c2_lptr_t *list);
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typedef bool (*c2_list_foreach_cb_t)(const c2_lptr_t *cond, void *data);
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bool c2_list_foreach(const c2_lptr_t *list, c2_list_foreach_cb_t cb, void *data);
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/// Return user data stored in a condition.
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void *c2_list_get_data(const c2_lptr_t *condlist);
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/// Convert a c2_lptr_t to string. The returned string is only valid until the
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/// next call to this function, and should not be freed.
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const char *c2_lptr_to_str(const c2_lptr_t *);
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/**
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* Destroy a condition list.
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*/
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static inline void c2_list_free(c2_lptr_t **pcondlst, c2_userdata_free f) {
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while ((*pcondlst = c2_free_lptr(*pcondlst, f))) {
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}
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*pcondlst = NULL;
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}
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