picom/src/win.c

2507 lines
76 KiB
C

// SPDX-License-Identifier: MIT
// Copyright (c) 2011-2013, Christopher Jeffrey
// Copyright (c) 2013 Richard Grenville <pyxlcy@gmail.com>
#include <X11/Xlib.h>
#include <X11/Xutil.h>
#include <inttypes.h>
#include <math.h>
#include <stdbool.h>
#include <stdlib.h>
#include <string.h>
#include <xcb/composite.h>
#include <xcb/damage.h>
#include <xcb/render.h>
#include <xcb/xcb.h>
#include <xcb/xcb_renderutil.h>
#include "atom.h"
#include "backend/backend.h"
#include "c2.h"
#include "common.h"
#include "compiler.h"
#include "config.h"
#include "dbus.h"
#include "list.h"
#include "log.h"
#include "picom.h"
#include "region.h"
#include "render.h"
#include "string_utils.h"
#include "transition.h"
#include "types.h"
#include "uthash_extra.h"
#include "utils.h"
#include "win_defs.h"
#include "wm.h"
#include "x.h"
#ifdef CONFIG_OPENGL
// TODO(yshui) Get rid of this include
#include "opengl.h"
#endif
#include "win.h"
// TODO(yshui) Make more window states internal
struct managed_win_internal {
struct managed_win base;
};
#define OPAQUE (0xffffffff)
static const int WIN_GET_LEADER_MAX_RECURSION = 20;
static const int ROUNDED_PIXELS = 1;
static const double ROUNDED_PERCENT = 0.05;
/**
* Reread opacity property of a window.
*/
static void win_update_opacity_prop(struct x_connection *c, struct atom *atoms,
struct managed_win *w, bool detect_client_opacity);
static void win_update_opacity_target(session_t *ps, struct managed_win *w);
static void win_update_prop_shadow_raw(struct x_connection *c, struct atom *atoms,
struct managed_win *w);
static bool
win_update_prop_shadow(struct x_connection *c, struct atom *atoms, struct managed_win *w);
/**
* Update window EWMH fullscreen state.
*/
bool win_update_prop_fullscreen(struct x_connection *c, const struct atom *atoms,
struct managed_win *w);
/**
* Update leader of a window.
*/
static xcb_window_t
win_get_leader_property(struct x_connection *c, struct atom *atoms, xcb_window_t wid,
bool detect_transient, bool detect_client_leader);
static void win_mark_client(session_t *ps, struct managed_win *w, xcb_window_t client);
/// Generate a "no corners" region function, from a function that returns the
/// region via a region_t pointer argument. Corners of the window will be removed from
/// the returned region.
/// Function signature has to be (win *, region_t *)
#define gen_without_corners(fun) \
void fun##_without_corners(const struct managed_win *w, region_t *res) { \
fun(w, res); \
win_region_remove_corners(w, res); \
}
/// Generate a "return by value" function, from a function that returns the
/// region via a region_t pointer argument.
/// Function signature has to be (win *)
#define gen_by_val(fun) \
region_t fun##_by_val(const struct managed_win *w) { \
region_t ret; \
pixman_region32_init(&ret); \
fun(w, &ret); \
return ret; \
}
static xcb_window_t win_get_leader_raw(session_t *ps, struct managed_win *w, int recursions);
/**
* Get the leader of a window.
*
* This function updates w->cache_leader if necessary.
*/
static inline xcb_window_t win_get_leader(session_t *ps, struct managed_win *w) {
return win_get_leader_raw(ps, w, 0);
}
/**
* Update focused state of a window.
*/
static void win_update_focused(session_t *ps, struct managed_win *w) {
if (w->focused_force != UNSET) {
w->focused = w->focused_force;
} else {
bool is_wmwin = win_is_wmwin(w);
w->focused = win_is_focused_raw(w);
// Use wintype_focus, and treat WM windows and override-redirected
// windows specially
if (ps->o.wintype_option[w->window_type].focus ||
(ps->o.mark_wmwin_focused && is_wmwin) ||
(ps->o.mark_ovredir_focused && w->base.id == w->client_win && !is_wmwin) ||
(w->a.map_state == XCB_MAP_STATE_VIEWABLE &&
c2_match(ps->c2_state, w, ps->o.focus_blacklist, NULL))) {
w->focused = true;
}
// If window grouping detection is enabled, mark the window active if
// its group is
auto active_leader = wm_active_leader(ps->wm);
if (ps->o.track_leader && active_leader &&
win_get_leader(ps, w) == active_leader) {
w->focused = true;
}
}
}
struct group_callback_data {
struct session *ps;
xcb_window_t leader;
};
static inline int group_on_factor_change_callback(struct win *w, void *data_) {
struct group_callback_data *data = data_;
if (!w->managed) {
return 0;
}
auto mw = (struct managed_win *)w;
if (data->leader == win_get_leader(data->ps, mw)) {
win_on_factor_change(data->ps, mw);
}
return 0;
}
/**
* Run win_on_factor_change() on all windows with the same leader window.
*
* @param leader leader window ID
*/
static inline void group_on_factor_change(session_t *ps, xcb_window_t leader) {
if (!leader) {
return;
}
struct group_callback_data data = {
.ps = ps,
.leader = leader,
};
wm_foreach(ps->wm, group_on_factor_change_callback, &data);
}
static inline int group_is_focused_callback(struct win *w, void *data_) {
struct group_callback_data *data = data_;
if (!w->managed) {
return 0;
}
auto mw = (struct managed_win *)w;
if (data->leader == win_get_leader(data->ps, mw) && win_is_focused_raw(mw)) {
return 1;
}
return 0;
}
/**
* Return whether a window group is really focused.
*
* @param leader leader window ID
* @return true if the window group is focused, false otherwise
*/
static inline bool group_is_focused(session_t *ps, xcb_window_t leader) {
if (!leader) {
return false;
}
struct group_callback_data data = {
.ps = ps,
.leader = leader,
};
return wm_foreach(ps->wm, group_is_focused_callback, &data);
}
/**
* Set leader of a window.
*/
static inline void win_set_leader(session_t *ps, struct managed_win *w, xcb_window_t nleader) {
xcb_window_t cache_leader_old = win_get_leader(ps, w);
w->leader = nleader;
// Forcefully do this to deal with the case when a child window
// gets mapped before parent, or when the window is a waypoint
win_stack_foreach_managed(i, wm_stack_end(ps->wm)) {
i->cache_leader = XCB_NONE;
}
// Update the old and new window group and active_leader if the
// window could affect their state.
xcb_window_t cache_leader = win_get_leader(ps, w);
if (win_is_focused_raw(w) && cache_leader_old != cache_leader) {
wm_set_active_leader(ps->wm, cache_leader);
group_on_factor_change(ps, cache_leader_old);
group_on_factor_change(ps, cache_leader);
}
}
/**
* Get a rectangular region a window occupies, excluding shadow.
*/
static void win_get_region_local(const struct managed_win *w, region_t *res) {
assert(w->widthb >= 0 && w->heightb >= 0);
pixman_region32_fini(res);
pixman_region32_init_rect(res, 0, 0, (uint)w->widthb, (uint)w->heightb);
}
/**
* Get a rectangular region a window occupies, excluding frame and shadow.
*/
void win_get_region_noframe_local(const struct managed_win *w, region_t *res) {
const margin_t extents = win_calc_frame_extents(w);
int x = extents.left;
int y = extents.top;
int width = max2(w->widthb - (extents.left + extents.right), 0);
int height = max2(w->heightb - (extents.top + extents.bottom), 0);
pixman_region32_fini(res);
if (width > 0 && height > 0) {
pixman_region32_init_rect(res, x, y, (uint)width, (uint)height);
} else {
pixman_region32_init(res);
}
}
gen_without_corners(win_get_region_noframe_local);
void win_get_region_frame_local(const struct managed_win *w, region_t *res) {
const margin_t extents = win_calc_frame_extents(w);
auto outer_width = w->widthb;
auto outer_height = w->heightb;
pixman_region32_fini(res);
pixman_region32_init_rects(
res,
(rect_t[]){
// top
{.x1 = 0, .y1 = 0, .x2 = outer_width, .y2 = extents.top},
// bottom
{.x1 = 0, .y1 = outer_height - extents.bottom, .x2 = outer_width, .y2 = outer_height},
// left
{.x1 = 0, .y1 = 0, .x2 = extents.left, .y2 = outer_height},
// right
{.x1 = outer_width - extents.right, .y1 = 0, .x2 = outer_width, .y2 = outer_height},
},
4);
// limit the frame region to inside the window
region_t reg_win;
pixman_region32_init_rects(&reg_win, (rect_t[]){{0, 0, outer_width, outer_height}}, 1);
pixman_region32_intersect(res, &reg_win, res);
pixman_region32_fini(&reg_win);
}
gen_by_val(win_get_region_frame_local);
/**
* Add a window to damaged area.
*
* @param ps current session
* @param w struct _win element representing the window
*/
void add_damage_from_win(session_t *ps, const struct managed_win *w) {
// XXX there was a cached extents region, investigate
// if that's better
// TODO(yshui) use the bounding shape when the window is shaped, otherwise the
// damage would be excessive
region_t extents;
pixman_region32_init(&extents);
win_extents(w, &extents);
add_damage(ps, &extents);
pixman_region32_fini(&extents);
}
/// Release the images attached to this window
static inline void win_release_pixmap(backend_t *base, struct managed_win *w) {
log_debug("Releasing pixmap of window %#010x (%s)", w->base.id, w->name);
assert(w->win_image);
if (w->win_image) {
xcb_pixmap_t pixmap = XCB_NONE;
pixmap = base->ops->v2.release_image(base, w->win_image);
w->win_image = NULL;
// Bypassing win_set_flags, because `w` might have been destroyed
w->flags |= WIN_FLAGS_PIXMAP_NONE;
if (pixmap != XCB_NONE) {
xcb_free_pixmap(base->c->c, pixmap);
}
}
}
static inline void win_release_shadow(backend_t *base, struct managed_win *w) {
log_debug("Releasing shadow of window %#010x (%s)", w->base.id, w->name);
if (w->shadow_image) {
assert(w->shadow);
xcb_pixmap_t pixmap = XCB_NONE;
pixmap = base->ops->v2.release_image(base, w->shadow_image);
w->shadow_image = NULL;
if (pixmap != XCB_NONE) {
xcb_free_pixmap(base->c->c, pixmap);
}
}
}
static inline void win_release_mask(backend_t *base, struct managed_win *w) {
if (w->mask_image) {
xcb_pixmap_t pixmap = XCB_NONE;
pixmap = base->ops->v2.release_image(base, w->mask_image);
w->mask_image = NULL;
if (pixmap != XCB_NONE) {
xcb_free_pixmap(base->c->c, pixmap);
}
}
}
static inline bool win_bind_pixmap(struct backend_base *b, struct managed_win *w) {
assert(!w->win_image);
auto pixmap = x_new_id(b->c);
auto e = xcb_request_check(
b->c->c, xcb_composite_name_window_pixmap_checked(b->c->c, w->base.id, pixmap));
if (e) {
log_error("Failed to get named pixmap for window %#010x(%s)", w->base.id,
w->name);
free(e);
return false;
}
log_debug("New named pixmap for %#010x (%s) : %#010x", w->base.id, w->name, pixmap);
w->win_image =
b->ops->v2.bind_pixmap(b, pixmap, x_get_visual_info(b->c, w->a.visual));
if (!w->win_image) {
log_error("Failed to bind pixmap");
xcb_free_pixmap(b->c->c, pixmap);
win_set_flags(w, WIN_FLAGS_IMAGE_ERROR);
return false;
}
win_clear_flags(w, WIN_FLAGS_PIXMAP_NONE);
return true;
}
void win_release_images(struct backend_base *backend, struct managed_win *w) {
// We don't want to decide what we should do if the image we want to
// release is stale (do we clear the stale flags or not?) But if we are
// not releasing any images anyway, we don't care about the stale flags.
if (!win_check_flags_all(w, WIN_FLAGS_PIXMAP_NONE)) {
assert(!win_check_flags_all(w, WIN_FLAGS_PIXMAP_STALE));
win_release_pixmap(backend, w);
}
win_release_shadow(backend, w);
win_release_mask(backend, w);
}
/// Returns true if the `prop` property is stale, as well as clears the stale
/// flag.
static bool win_fetch_and_unset_property_stale(struct managed_win *w, xcb_atom_t prop);
/// Returns true if any of the properties are stale, as well as clear all the
/// stale flags.
static void win_clear_all_properties_stale(struct managed_win *w);
// TODO(yshui) make WIN_FLAGS_FACTOR_CHANGED more fine-grained, or find a better
// alternative
// way to do all this.
/// Fetch new window properties from the X server, and run appropriate updates.
/// Might set WIN_FLAGS_FACTOR_CHANGED
static void win_update_properties(session_t *ps, struct managed_win *w) {
// we cannot receive property change when window has been destroyed
assert(w->state != WSTATE_DESTROYED);
if (win_fetch_and_unset_property_stale(w, ps->atoms->a_NET_WM_WINDOW_TYPE)) {
if (win_update_wintype(&ps->c, ps->atoms, w)) {
win_set_flags(w, WIN_FLAGS_FACTOR_CHANGED);
}
}
if (win_fetch_and_unset_property_stale(w, ps->atoms->a_NET_WM_WINDOW_OPACITY)) {
win_update_opacity_prop(&ps->c, ps->atoms, w, ps->o.detect_client_opacity);
win_update_opacity_target(ps, w);
}
if (win_fetch_and_unset_property_stale(w, ps->atoms->a_NET_FRAME_EXTENTS)) {
win_update_frame_extents(&ps->c, ps->atoms, w, w->client_win,
ps->o.frame_opacity);
add_damage_from_win(ps, w);
}
if (win_fetch_and_unset_property_stale(w, ps->atoms->aWM_NAME) ||
win_fetch_and_unset_property_stale(w, ps->atoms->a_NET_WM_NAME)) {
if (win_update_name(&ps->c, ps->atoms, w) == 1) {
win_set_flags(w, WIN_FLAGS_FACTOR_CHANGED);
}
}
if (win_fetch_and_unset_property_stale(w, ps->atoms->aWM_CLASS)) {
if (win_update_class(&ps->c, ps->atoms, w)) {
win_set_flags(w, WIN_FLAGS_FACTOR_CHANGED);
}
}
if (win_fetch_and_unset_property_stale(w, ps->atoms->aWM_WINDOW_ROLE)) {
if (win_update_role(&ps->c, ps->atoms, w) == 1) {
win_set_flags(w, WIN_FLAGS_FACTOR_CHANGED);
}
}
if (win_fetch_and_unset_property_stale(w, ps->atoms->a_COMPTON_SHADOW)) {
if (win_update_prop_shadow(&ps->c, ps->atoms, w)) {
win_set_flags(w, WIN_FLAGS_FACTOR_CHANGED);
}
}
if (win_fetch_and_unset_property_stale(w, ps->atoms->a_NET_WM_STATE)) {
if (win_update_prop_fullscreen(&ps->c, ps->atoms, w)) {
win_set_flags(w, WIN_FLAGS_FACTOR_CHANGED);
}
}
if (win_fetch_and_unset_property_stale(w, ps->atoms->aWM_CLIENT_LEADER) ||
win_fetch_and_unset_property_stale(w, ps->atoms->aWM_TRANSIENT_FOR)) {
auto new_leader = win_get_leader_property(&ps->c, ps->atoms, w->client_win,
ps->o.detect_transient,
ps->o.detect_client_leader);
if (w->leader != new_leader) {
win_set_leader(ps, w, new_leader);
win_set_flags(w, WIN_FLAGS_FACTOR_CHANGED);
}
}
win_clear_all_properties_stale(w);
}
/// Handle non-image flags. This phase might set IMAGES_STALE flags
void win_process_update_flags(session_t *ps, struct managed_win *w) {
log_trace("Processing flags for window %#010x (%s), was rendered: %d, flags: "
"%#" PRIx64,
w->base.id, w->name, w->to_paint, w->flags);
if (win_check_flags_all(w, WIN_FLAGS_MAPPED)) {
map_win_start(ps, w);
win_clear_flags(w, WIN_FLAGS_MAPPED);
}
if (w->state != WSTATE_MAPPED) {
// Window is not mapped, so we ignore all its changes until it's mapped
// again.
return;
}
// Check client first, because later property updates need accurate client
// window information
if (win_check_flags_all(w, WIN_FLAGS_CLIENT_STALE)) {
log_debug("Rechecking client window for %#010x (%s)", w->base.id, w->name);
auto client_win = win_get_client_window(&ps->c, ps->wm, ps->atoms, w);
if (w->client_win && w->client_win != client_win) {
win_unmark_client(w);
}
log_debug("New client window for %#010x (%s): %#010x", w->base.id,
w->name, client_win);
win_mark_client(ps, w, client_win);
win_clear_flags(w, WIN_FLAGS_CLIENT_STALE);
}
bool damaged = false;
if (win_check_flags_any(w, WIN_FLAGS_SIZE_STALE | WIN_FLAGS_POSITION_STALE)) {
// For damage calculation purposes, we don't care if the window
// is mapped in X server, we only care if we rendered it last
// frame.
//
// We do not process window flags for unmapped windows even when
// it was rendered, so an window fading out won't move even if the
// underlying unmapped window is moved. When the window is
// mapped again when it's still fading out, it should have the
// same effect as a mapped window being moved, meaning we have
// to add both the previous and the new window extents to
// damage.
//
// All that is basically me saying what really matters is if the
// window was rendered last frame, not if it's mapped in X server.
if (w->to_paint) {
// Mark the old extents of this window as damaged. The new
// extents will be marked damaged below, after the window
// extents are updated.
add_damage_from_win(ps, w);
}
// Update window geometry
w->g = w->pending_g;
// Whether a window is fullscreen changes based on its geometry
win_update_is_fullscreen(ps, w);
if (win_check_flags_all(w, WIN_FLAGS_SIZE_STALE)) {
win_on_win_size_change(w, ps->o.shadow_offset_x,
ps->o.shadow_offset_y, ps->o.shadow_radius);
win_update_bounding_shape(&ps->c, w, ps->shape_exists,
ps->o.detect_rounded_corners);
damaged = true;
win_clear_flags(w, WIN_FLAGS_SIZE_STALE);
// Window shape/size changed, invalidate the images we built
// log_trace("free out dated pict");
win_set_flags(w, WIN_FLAGS_PIXMAP_STALE | WIN_FLAGS_FACTOR_CHANGED);
win_release_mask(ps->backend_data, w);
win_release_shadow(ps->backend_data, w);
ps->pending_updates = true;
free_paint(ps, &w->paint);
free_paint(ps, &w->shadow_paint);
}
if (win_check_flags_all(w, WIN_FLAGS_POSITION_STALE)) {
damaged = true;
win_clear_flags(w, WIN_FLAGS_POSITION_STALE);
}
win_update_monitor(&ps->monitors, w);
}
if (win_check_flags_all(w, WIN_FLAGS_PROPERTY_STALE)) {
win_update_properties(ps, w);
win_clear_flags(w, WIN_FLAGS_PROPERTY_STALE);
}
// Factor change flags could be set by previous stages, so must be handled
// last
if (win_check_flags_all(w, WIN_FLAGS_FACTOR_CHANGED)) {
win_on_factor_change(ps, w);
win_clear_flags(w, WIN_FLAGS_FACTOR_CHANGED);
}
// Add damage, has to be done last so the window has the latest geometry
// information.
if (damaged) {
add_damage_from_win(ps, w);
}
}
void win_process_image_flags(session_t *ps, struct managed_win *w) {
// Assert that the MAPPED flag is already handled.
assert(!win_check_flags_all(w, WIN_FLAGS_MAPPED));
if (w->state != WSTATE_MAPPED) {
// Flags of invisible windows are processed when they are mapped
return;
}
// Not a loop
while (win_check_flags_any(w, WIN_FLAGS_PIXMAP_STALE) &&
!win_check_flags_all(w, WIN_FLAGS_IMAGE_ERROR)) {
// Image needs to be updated, update it.
if (!ps->backend_data) {
// We are using legacy backend, nothing to do here.
break;
}
if (win_check_flags_all(w, WIN_FLAGS_PIXMAP_STALE)) {
// Check to make sure the window is still mapped,
// otherwise we won't be able to rebind pixmap after
// releasing it, yet we might still need the pixmap for
// rendering.
if (!win_check_flags_all(w, WIN_FLAGS_PIXMAP_NONE)) {
// Must release images first, otherwise breaks
// NVIDIA driver
win_release_pixmap(ps->backend_data, w);
}
win_bind_pixmap(ps->backend_data, w);
}
// break here, loop always run only once
break;
}
// Clear stale image flags
if (win_check_flags_any(w, WIN_FLAGS_PIXMAP_STALE)) {
win_clear_flags(w, WIN_FLAGS_PIXMAP_STALE);
}
}
/**
* Check if a window has rounded corners.
* XXX This is really dumb
*/
static bool attr_pure win_has_rounded_corners(const struct managed_win *w) {
if (!w->bounding_shaped) {
return false;
}
// Quit if border_size() returns XCB_NONE
if (!pixman_region32_not_empty((region_t *)&w->bounding_shape)) {
return false;
}
// Determine the minimum width/height of a rectangle that could mark
// a window as having rounded corners
auto minwidth =
(uint16_t)max2(w->widthb * (1 - ROUNDED_PERCENT), w->widthb - ROUNDED_PIXELS);
auto minheight =
(uint16_t)max2(w->heightb * (1 - ROUNDED_PERCENT), w->heightb - ROUNDED_PIXELS);
// Get the rectangles in the bounding region
int nrects = 0;
const rect_t *rects =
pixman_region32_rectangles((region_t *)&w->bounding_shape, &nrects);
// Look for a rectangle large enough for this window be considered
// having rounded corners
for (int i = 0; i < nrects; ++i) {
if (rects[i].x2 - rects[i].x1 >= minwidth &&
rects[i].y2 - rects[i].y1 >= minheight) {
return true;
}
}
return false;
}
int win_update_name(struct x_connection *c, struct atom *atoms, struct managed_win *w) {
char **strlst = NULL;
int nstr = 0;
if (!w->client_win) {
return 0;
}
if (!(wid_get_text_prop(c, atoms, w->client_win, atoms->a_NET_WM_NAME, &strlst, &nstr))) {
log_debug("(%#010x): _NET_WM_NAME unset, falling back to "
"WM_NAME.",
w->client_win);
if (!wid_get_text_prop(c, atoms, w->client_win, atoms->aWM_NAME, &strlst,
&nstr)) {
log_debug("Unsetting window name for %#010x", w->client_win);
free(w->name);
w->name = NULL;
return -1;
}
}
int ret = 0;
if (!w->name || strcmp(w->name, strlst[0]) != 0) {
ret = 1;
free(w->name);
w->name = strdup(strlst[0]);
}
free(strlst);
log_debug("(%#010x): client = %#010x, name = \"%s\", "
"ret = %d",
w->base.id, w->client_win, w->name, ret);
return ret;
}
int win_update_role(struct x_connection *c, struct atom *atoms, struct managed_win *w) {
char **strlst = NULL;
int nstr = 0;
if (!wid_get_text_prop(c, atoms, w->client_win, atoms->aWM_WINDOW_ROLE, &strlst, &nstr)) {
return -1;
}
int ret = 0;
if (!w->role || strcmp(w->role, strlst[0]) != 0) {
ret = 1;
free(w->role);
w->role = strdup(strlst[0]);
}
free(strlst);
log_trace("(%#010x): client = %#010x, role = \"%s\", "
"ret = %d",
w->base.id, w->client_win, w->role, ret);
return ret;
}
/**
* Check if a window is bounding-shaped.
*/
static inline bool win_bounding_shaped(struct x_connection *c, xcb_window_t wid) {
xcb_shape_query_extents_reply_t *reply;
bool bounding_shaped;
reply = xcb_shape_query_extents_reply(c->c, xcb_shape_query_extents(c->c, wid), NULL);
bounding_shaped = reply && reply->bounding_shaped;
free(reply);
return bounding_shaped;
}
static wintype_t
wid_get_prop_wintype(struct x_connection *c, struct atom *atoms, xcb_window_t wid) {
winprop_t prop =
x_get_prop(c, wid, atoms->a_NET_WM_WINDOW_TYPE, 32L, XCB_ATOM_ATOM, 32);
for (unsigned i = 0; i < prop.nitems; ++i) {
for (wintype_t j = 1; j < NUM_WINTYPES; ++j) {
if (get_atom_with_nul(atoms, WINTYPES[j].atom, c->c) ==
(xcb_atom_t)prop.p32[i]) {
free_winprop(&prop);
return j;
}
}
}
free_winprop(&prop);
return WINTYPE_UNKNOWN;
}
static bool wid_get_opacity_prop(struct x_connection *c, struct atom *atoms,
xcb_window_t wid, opacity_t def, opacity_t *out) {
bool ret = false;
*out = def;
winprop_t prop =
x_get_prop(c, wid, atoms->a_NET_WM_WINDOW_OPACITY, 1L, XCB_ATOM_CARDINAL, 32);
if (prop.nitems) {
*out = *prop.c32;
ret = true;
}
free_winprop(&prop);
return ret;
}
// XXX should distinguish between frame has alpha and window body has alpha
bool win_has_alpha(const struct managed_win *w) {
return w->pictfmt && w->pictfmt->type == XCB_RENDER_PICT_TYPE_DIRECT &&
w->pictfmt->direct.alpha_mask;
}
bool win_client_has_alpha(const struct managed_win *w) {
return w->client_pictfmt && w->client_pictfmt->type == XCB_RENDER_PICT_TYPE_DIRECT &&
w->client_pictfmt->direct.alpha_mask;
}
winmode_t win_calc_mode(const struct managed_win *w) {
if (animatable_get(&w->opacity) < 1.0) {
return WMODE_TRANS;
}
if (win_has_alpha(w)) {
if (w->client_win == XCB_NONE) {
// This is a window not managed by the WM, and it has
// alpha, so it's transparent. No need to check WM frame.
return WMODE_TRANS;
}
// The WM window has alpha
if (win_client_has_alpha(w)) {
// The client window also has alpha, the entire window is
// transparent
return WMODE_TRANS;
}
if (win_has_frame(w)) {
// The client window doesn't have alpha, but we have a WM
// frame window, which has alpha.
return WMODE_FRAME_TRANS;
}
// Although the WM window has alpha, the frame window has 0 size,
// so consider the window solid
}
if (w->frame_opacity != 1.0 && win_has_frame(w)) {
return WMODE_FRAME_TRANS;
}
// log_trace("Window %#010x(%s) is solid", w->client_win, w->name);
return WMODE_SOLID;
}
/**
* Calculate and return the opacity target of a window.
*
* The priority of opacity settings are:
*
* inactive_opacity_override (if set, and unfocused) > _NET_WM_WINDOW_OPACITY (if
* set) > opacity-rules (if matched) > window type default opacity >
* active/inactive opacity
*
* @param ps current session
* @param w struct _win object representing the window
*
* @return target opacity
*/
static double win_calc_opacity_target(session_t *ps, const struct managed_win *w) {
double opacity = 1;
if (w->state == WSTATE_UNMAPPED || w->state == WSTATE_DESTROYED) {
// be consistent
return 0;
}
// Try obeying opacity property and window type opacity firstly
if (w->has_opacity_prop) {
opacity = ((double)w->opacity_prop) / OPAQUE;
} else if (w->opacity_is_set) {
opacity = w->opacity_set;
} else if (!safe_isnan(ps->o.wintype_option[w->window_type].opacity)) {
opacity = ps->o.wintype_option[w->window_type].opacity;
} else {
// Respect active_opacity only when the window is physically
// focused
if (win_is_focused_raw(w)) {
opacity = ps->o.active_opacity;
} else if (!w->focused) {
// Respect inactive_opacity in some cases
opacity = ps->o.inactive_opacity;
}
}
// respect inactive override
if (ps->o.inactive_opacity_override && !w->focused) {
opacity = ps->o.inactive_opacity;
}
return opacity;
}
/// Finish the unmapping of a window (e.g. after fading has finished).
/// Doesn't free `w`
static void unmap_win_finish(session_t *ps, struct managed_win *w) {
w->reg_ignore_valid = false;
w->state = WSTATE_UNMAPPED;
// We are in unmap_win, this window definitely was viewable
if (ps->backend_data) {
// Only the pixmap needs to be freed and reacquired when mapping.
// Shadow image can be preserved.
if (!win_check_flags_all(w, WIN_FLAGS_PIXMAP_NONE)) {
win_release_pixmap(ps->backend_data, w);
}
} else {
assert(!w->win_image);
assert(!w->shadow_image);
}
free_paint(ps, &w->paint);
free_paint(ps, &w->shadow_paint);
// Try again at binding images when the window is mapped next time
win_clear_flags(w, WIN_FLAGS_IMAGE_ERROR);
assert(w->number_of_animations == 0);
}
struct window_transition_data {
struct managed_win *w;
session_t *ps;
// TODO(yshui) switch to only pass backend_data after the legacy backend removal
// struct backend_base *backend_data;
uint64_t refcount;
};
static void win_transition_callback(enum transition_event event, void *data_) {
auto data = (struct window_transition_data *)data_;
auto w = data->w;
w->number_of_animations--;
if (w->number_of_animations == 0 && event != TRANSITION_INTERRUPTED) {
if (w->state == WSTATE_DESTROYED || w->state == WSTATE_UNMAPPED) {
if (animatable_get(&w->opacity) != 0) {
log_warn("Window %#010x (%s) has finished fading out but "
"its opacity is not 0",
w->base.id, w->name);
}
}
if (w->state == WSTATE_UNMAPPED) {
unmap_win_finish(data->ps, data->w);
}
// Destroyed windows are freed in paint_preprocess, this makes managing
// the lifetime of windows easier.
w->in_openclose = false;
}
data->refcount--;
if (data->refcount == 0) {
free(data);
}
}
/**
* Determine if a window should fade on opacity change.
*/
bool win_should_fade(session_t *ps, const struct managed_win *w) {
// To prevent it from being overwritten by last-paint value if the window
// is
if (w->fade_force != UNSET) {
return w->fade_force;
}
if (ps->o.no_fading_openclose && w->in_openclose) {
return false;
}
if (ps->o.no_fading_destroyed_argb && w->state == WSTATE_DESTROYED &&
win_has_alpha(w) && w->client_win && w->client_win != w->base.id) {
// deprecated
return false;
}
if (w->fade_excluded) {
return false;
}
return ps->o.wintype_option[w->window_type].fade;
}
/// Call `animatable_set_target` on the opacity of a window, with appropriate
/// target opacity and duration.
static inline void
win_start_fade(session_t *ps, struct managed_win *w, double target_blur_opacity) {
double current_opacity = animatable_get(&w->opacity),
target_opacity = win_calc_opacity_target(ps, w);
double step_size =
target_opacity > current_opacity ? ps->o.fade_in_step : ps->o.fade_out_step;
double duration = (fabs(target_opacity - current_opacity) / step_size) *
(double)ps->o.fade_delta / 1000.0;
if (!win_should_fade(ps, w)) {
duration = 0;
}
auto data = ccalloc(1, struct window_transition_data);
data->ps = ps;
data->w = w;
data->refcount = 0;
if (animatable_set_target(&w->opacity, target_opacity, duration,
curve_new_linear(), win_transition_callback, data)) {
data->refcount++;
w->number_of_animations++;
}
if (animatable_set_target(&w->blur_opacity, target_blur_opacity, duration,
curve_new_linear(), win_transition_callback, data)) {
data->refcount++;
w->number_of_animations++;
}
if (!data->refcount) {
free(data);
}
if (w->number_of_animations == 0 && w->state == WSTATE_UNMAPPED) {
unmap_win_finish(ps, w);
}
}
/**
* Determine whether a window is to be dimmed.
*/
bool win_should_dim(session_t *ps, const struct managed_win *w) {
// Make sure we do nothing if the window is unmapped / being destroyed
if (w->state == WSTATE_UNMAPPED) {
return false;
}
if (ps->o.inactive_dim > 0 && !(w->focused)) {
return true;
}
return false;
}
/**
* Reread _COMPTON_SHADOW property from a window.
*
* The property must be set on the outermost window, usually the WM frame.
*/
void win_update_prop_shadow_raw(struct x_connection *c, struct atom *atoms,
struct managed_win *w) {
winprop_t prop =
x_get_prop(c, w->base.id, atoms->a_COMPTON_SHADOW, 1, XCB_ATOM_CARDINAL, 32);
if (!prop.nitems) {
w->prop_shadow = -1;
} else {
w->prop_shadow = *prop.c32;
}
free_winprop(&prop);
}
static void win_set_shadow(session_t *ps, struct managed_win *w, bool shadow_new) {
if (w->shadow == shadow_new) {
return;
}
log_debug("Updating shadow property of window %#010x (%s) to %d", w->base.id,
w->name, shadow_new);
// We don't handle property updates of non-visible windows until they are
// mapped.
assert(w->state == WSTATE_MAPPED);
// Keep a copy of window extent before the shadow change. Will be used for
// calculation of damaged region
region_t extents;
pixman_region32_init(&extents);
win_extents(w, &extents);
if (ps->redirected) {
// Add damage for shadow change
// Window extents need update on shadow state change
// Shadow geometry currently doesn't change on shadow state change
// calc_shadow_geometry(ps, w);
if (shadow_new) {
// Mark the new extents as damaged if the shadow is added
assert(!w->shadow_image);
pixman_region32_clear(&extents);
win_extents(w, &extents);
add_damage_from_win(ps, w);
} else {
// Mark the old extents as damaged if the shadow is
// removed
add_damage(ps, &extents);
win_release_shadow(ps->backend_data, w);
}
// Only set pending_updates if we are redirected. Otherwise change
// of a shadow won't have influence on whether we should redirect.
ps->pending_updates = true;
}
w->shadow = shadow_new;
pixman_region32_fini(&extents);
}
/**
* Determine if a window should have shadow, and update things depending
* on shadow state.
*/
static void win_determine_shadow(session_t *ps, struct managed_win *w) {
log_debug("Determining shadow of window %#010x (%s)", w->base.id, w->name);
bool shadow_new = w->shadow;
if (w->shadow_force != UNSET) {
shadow_new = w->shadow_force;
} else if (w->a.map_state == XCB_MAP_STATE_VIEWABLE) {
shadow_new = true;
if (!ps->o.wintype_option[w->window_type].shadow) {
log_debug("Shadow disabled by wintypes");
shadow_new = false;
} else if (c2_match(ps->c2_state, w, ps->o.shadow_blacklist, NULL)) {
log_debug("Shadow disabled by shadow-exclude");
shadow_new = false;
} else if (ps->o.shadow_ignore_shaped && w->bounding_shaped &&
!w->rounded_corners) {
log_debug("Shadow disabled by shadow-ignore-shaped");
shadow_new = false;
} else if (w->prop_shadow == 0) {
log_debug("Shadow disabled by shadow property");
shadow_new = false;
}
}
win_set_shadow(ps, w, shadow_new);
}
/**
* Reread _COMPTON_SHADOW property from a window and update related
* things.
*/
static bool
win_update_prop_shadow(struct x_connection *c, struct atom *atoms, struct managed_win *w) {
long long attr_shadow_old = w->prop_shadow;
win_update_prop_shadow_raw(c, atoms, w);
return w->prop_shadow != attr_shadow_old;
}
/**
* Update window EWMH fullscreen state.
*/
bool win_update_prop_fullscreen(struct x_connection *c, const struct atom *atoms,
struct managed_win *w) {
auto prop = x_get_prop(c, w->client_win, atoms->a_NET_WM_STATE, 12, XCB_ATOM_ATOM, 0);
bool is_fullscreen = false;
for (uint32_t i = 0; i < prop.nitems; i++) {
if (prop.atom[i] == atoms->a_NET_WM_STATE_FULLSCREEN) {
is_fullscreen = true;
break;
}
}
free_winprop(&prop);
bool changed = w->is_ewmh_fullscreen != is_fullscreen;
w->is_ewmh_fullscreen = is_fullscreen;
return changed;
}
static void win_determine_clip_shadow_above(session_t *ps, struct managed_win *w) {
bool should_crop = (ps->o.wintype_option[w->window_type].clip_shadow_above ||
c2_match(ps->c2_state, w, ps->o.shadow_clip_list, NULL));
w->clip_shadow_above = should_crop;
}
static void win_set_invert_color(session_t *ps, struct managed_win *w, bool invert_color_new) {
if (w->invert_color == invert_color_new) {
return;
}
w->invert_color = invert_color_new;
add_damage_from_win(ps, w);
}
/**
* Determine if a window should have color inverted.
*/
static void win_determine_invert_color(session_t *ps, struct managed_win *w) {
bool invert_color_new = w->invert_color;
if (UNSET != w->invert_color_force) {
invert_color_new = w->invert_color_force;
} else if (w->a.map_state == XCB_MAP_STATE_VIEWABLE) {
invert_color_new = c2_match(ps->c2_state, w, ps->o.invert_color_list, NULL);
}
win_set_invert_color(ps, w, invert_color_new);
}
/**
* Set w->invert_color_force of a window.
*/
void win_set_invert_color_force(session_t *ps, struct managed_win *w, switch_t val) {
if (val != w->invert_color_force) {
w->invert_color_force = val;
win_determine_invert_color(ps, w);
queue_redraw(ps);
}
}
/**
* Set w->fade_force of a window.
*
* Doesn't affect fading already in progress
*/
void win_set_fade_force(struct managed_win *w, switch_t val) {
w->fade_force = val;
}
/**
* Set w->focused_force of a window.
*/
void win_set_focused_force(session_t *ps, struct managed_win *w, switch_t val) {
if (val != w->focused_force) {
w->focused_force = val;
win_on_factor_change(ps, w);
queue_redraw(ps);
}
}
/**
* Set w->shadow_force of a window.
*/
void win_set_shadow_force(session_t *ps, struct managed_win *w, switch_t val) {
if (val != w->shadow_force) {
w->shadow_force = val;
win_determine_shadow(ps, w);
queue_redraw(ps);
}
}
static void
win_set_blur_background(session_t *ps, struct managed_win *w, bool blur_background_new) {
if (w->blur_background == blur_background_new) {
return;
}
w->blur_background = blur_background_new;
// This damage might not be absolutely necessary (e.g. when the window is
// opaque), but blur_background changes should be rare, so this should be
// fine.
add_damage_from_win(ps, w);
}
static void
win_set_fg_shader(session_t *ps, struct managed_win *w, struct shader_info *shader_new) {
if (w->fg_shader == shader_new) {
return;
}
w->fg_shader = shader_new;
// A different shader might change how the window is drawn, these changes
// should be rare however, so this should be fine.
add_damage_from_win(ps, w);
}
/**
* Determine if a window should have background blurred.
*/
static void win_determine_blur_background(session_t *ps, struct managed_win *w) {
log_debug("Determining blur-background of window %#010x (%s)", w->base.id, w->name);
if (w->a.map_state != XCB_MAP_STATE_VIEWABLE) {
return;
}
bool blur_background_new = ps->o.blur_method != BLUR_METHOD_NONE;
if (blur_background_new) {
if (!ps->o.wintype_option[w->window_type].blur_background) {
log_debug("Blur background disabled by wintypes");
blur_background_new = false;
} else if (c2_match(ps->c2_state, w, ps->o.blur_background_blacklist, NULL)) {
log_debug("Blur background disabled by "
"blur-background-exclude");
blur_background_new = false;
}
}
win_set_blur_background(ps, w, blur_background_new);
}
/**
* Determine if a window should have rounded corners.
*/
static void win_determine_rounded_corners(session_t *ps, struct managed_win *w) {
void *radius_override = NULL;
if (c2_match(ps->c2_state, w, ps->o.corner_radius_rules, &radius_override)) {
log_debug("Matched corner rule! %d", w->corner_radius);
}
if (ps->o.corner_radius == 0 && !radius_override) {
w->corner_radius = 0;
return;
}
// Don't round full screen windows & excluded windows,
// unless we find a corner override in corner_radius_rules
if (!radius_override &&
((w && w->is_fullscreen) ||
c2_match(ps->c2_state, w, ps->o.rounded_corners_blacklist, NULL))) {
w->corner_radius = 0;
log_debug("Not rounding corners for window %#010x", w->base.id);
} else {
if (radius_override) {
w->corner_radius = (int)(long)radius_override;
} else {
w->corner_radius = ps->o.corner_radius;
}
log_debug("Rounding corners for window %#010x", w->base.id);
// Initialize the border color to an invalid value
w->border_col[0] = w->border_col[1] = w->border_col[2] =
w->border_col[3] = -1.0F;
}
}
/**
* Determine custom window shader to use for a window.
*/
static void win_determine_fg_shader(session_t *ps, struct managed_win *w) {
if (w->a.map_state != XCB_MAP_STATE_VIEWABLE) {
return;
}
auto shader_new = ps->o.window_shader_fg;
void *val = NULL;
if (c2_match(ps->c2_state, w, ps->o.window_shader_fg_rules, &val)) {
shader_new = val;
}
struct shader_info *shader = NULL;
if (shader_new) {
HASH_FIND_STR(ps->shaders, shader_new, shader);
}
win_set_fg_shader(ps, w, shader);
}
/**
* Update window opacity according to opacity rules.
*/
void win_update_opacity_rule(session_t *ps, struct managed_win *w) {
if (w->a.map_state != XCB_MAP_STATE_VIEWABLE) {
return;
}
double opacity = 1.0;
bool is_set = false;
void *val = NULL;
if (c2_match(ps->c2_state, w, ps->o.opacity_rules, &val)) {
opacity = ((double)(long)val) / 100.0;
is_set = true;
}
w->opacity_set = opacity;
w->opacity_is_set = is_set;
}
/**
* Function to be called on window data changes.
*
* TODO(yshui) need better name
*/
void win_on_factor_change(session_t *ps, struct managed_win *w) {
log_debug("Window %#010x (%s) factor change", w->base.id, w->name);
c2_window_state_update(ps->c2_state, &w->c2_state, ps->c.c, w->client_win, w->base.id);
// Focus and is_fullscreen needs to be updated first, as other rules might depend
// on the focused state of the window
win_update_focused(ps, w);
win_update_is_fullscreen(ps, w);
win_determine_shadow(ps, w);
win_determine_clip_shadow_above(ps, w);
win_determine_invert_color(ps, w);
win_determine_blur_background(ps, w);
win_determine_rounded_corners(ps, w);
win_determine_fg_shader(ps, w);
w->mode = win_calc_mode(w);
log_debug("Window mode changed to %d", w->mode);
win_update_opacity_rule(ps, w);
if (w->a.map_state == XCB_MAP_STATE_VIEWABLE) {
w->paint_excluded = c2_match(ps->c2_state, w, ps->o.paint_blacklist, NULL);
}
if (w->a.map_state == XCB_MAP_STATE_VIEWABLE) {
w->unredir_if_possible_excluded =
c2_match(ps->c2_state, w, ps->o.unredir_if_possible_blacklist, NULL);
}
w->fade_excluded = c2_match(ps->c2_state, w, ps->o.fade_blacklist, NULL);
w->transparent_clipping =
ps->o.transparent_clipping &&
!c2_match(ps->c2_state, w, ps->o.transparent_clipping_blacklist, NULL);
win_update_opacity_target(ps, w);
w->reg_ignore_valid = false;
if (ps->debug_window != XCB_NONE &&
(w->base.id == ps->debug_window || w->client_win == ps->debug_window)) {
w->paint_excluded = true;
}
}
/**
* Update cache data in struct _win that depends on window size.
*/
void win_on_win_size_change(struct managed_win *w, int shadow_offset_x,
int shadow_offset_y, int shadow_radius) {
log_trace("Window %#010x (%s) size changed, was %dx%d, now %dx%d", w->base.id,
w->name, w->widthb, w->heightb, w->g.width + w->g.border_width * 2,
w->g.height + w->g.border_width * 2);
w->widthb = w->g.width + w->g.border_width * 2;
w->heightb = w->g.height + w->g.border_width * 2;
w->shadow_dx = shadow_offset_x;
w->shadow_dy = shadow_offset_y;
w->shadow_width = w->widthb + shadow_radius * 2;
w->shadow_height = w->heightb + shadow_radius * 2;
// We don't handle property updates of non-visible windows until they are
// mapped.
assert(w->state == WSTATE_MAPPED);
}
/**
* Update window type.
*/
bool win_update_wintype(struct x_connection *c, struct atom *atoms, struct managed_win *w) {
const wintype_t wtype_old = w->window_type;
// Detect window type here
w->window_type = wid_get_prop_wintype(c, atoms, w->client_win);
// Conform to EWMH standard, if _NET_WM_WINDOW_TYPE is not present, take
// override-redirect windows or windows without WM_TRANSIENT_FOR as
// _NET_WM_WINDOW_TYPE_NORMAL, otherwise as _NET_WM_WINDOW_TYPE_DIALOG.
if (WINTYPE_UNKNOWN == w->window_type) {
if (w->a.override_redirect ||
!wid_has_prop(c->c, w->client_win, atoms->aWM_TRANSIENT_FOR)) {
w->window_type = WINTYPE_NORMAL;
} else {
w->window_type = WINTYPE_DIALOG;
}
}
return w->window_type != wtype_old;
}
/**
* Mark a window as the client window of another.
*
* @param ps current session
* @param w struct _win of the parent window
* @param client window ID of the client window
*/
static void win_mark_client(session_t *ps, struct managed_win *w, xcb_window_t client) {
w->client_win = client;
// If the window isn't mapped yet, stop here, as the function will be
// called in map_win()
if (w->a.map_state != XCB_MAP_STATE_VIEWABLE) {
return;
}
win_update_wintype(&ps->c, ps->atoms, w);
// Get frame widths. The window is in damaged area already.
win_update_frame_extents(&ps->c, ps->atoms, w, client, ps->o.frame_opacity);
// Get window group
if (ps->o.track_leader) {
auto new_leader = win_get_leader_property(&ps->c, ps->atoms, w->client_win,
ps->o.detect_transient,
ps->o.detect_client_leader);
if (w->leader != new_leader) {
win_set_leader(ps, w, new_leader);
}
}
// Get window name and class if we are tracking them
win_update_name(&ps->c, ps->atoms, w);
win_update_class(&ps->c, ps->atoms, w);
win_update_role(&ps->c, ps->atoms, w);
// Update everything related to conditions
win_on_factor_change(ps, w);
xcb_generic_error_t *e = NULL;
auto r = xcb_get_window_attributes_reply(
ps->c.c, xcb_get_window_attributes(ps->c.c, w->client_win), &e);
if (!r) {
log_error_x_error(e, "Failed to get client window attributes");
return;
}
w->client_pictfmt = x_get_pictform_for_visual(&ps->c, r->visual);
free(r);
}
/**
* Unmark current client window of a window.
*
* @param ps current session
* @param w struct _win of the parent window
*/
void win_unmark_client(struct managed_win *w) {
xcb_window_t client = w->client_win;
log_debug("Detaching client window %#010x from frame %#010x (%s)", client,
w->base.id, w->name);
w->client_win = XCB_NONE;
}
/**
* Look for the client window of a particular window.
*/
static xcb_window_t
find_client_win(struct x_connection *c, struct wm *wm, struct atom *atoms, xcb_window_t w) {
xcb_query_tree_reply_t *reply =
xcb_query_tree_reply(c->c, xcb_query_tree(c->c, w), NULL);
if (!reply) {
return XCB_NONE;
}
xcb_window_t *children = xcb_query_tree_children(reply);
int nchildren = xcb_query_tree_children_length(reply);
xcb_window_t ret = XCB_NONE;
for (int i = 0; i < nchildren; ++i) {
auto subwin = wm ? wm_subwin_find(wm, children[i]) : NULL;
bool has_wm_state;
assert(subwin != NULL || wm == NULL);
if (!subwin || subwin->has_wm_state == TRI_UNKNOWN) {
has_wm_state = wid_has_prop(c->c, children[i], atoms->aWM_STATE);
if (subwin) {
subwin->has_wm_state = has_wm_state ? TRI_TRUE : TRI_FALSE;
}
} else {
has_wm_state = subwin->has_wm_state == TRI_TRUE;
}
if (has_wm_state) {
ret = children[i];
break;
}
}
free(reply);
return ret;
}
/**
* Get client window of a window.
*
* @param ps current session
* @param w struct _win of the parent window
*/
xcb_window_t win_get_client_window(struct x_connection *c, struct wm *wm,
struct atom *atoms, const struct managed_win *w) {
// Always recursively look for a window with WM_STATE, as Fluxbox
// sets override-redirect flags on all frame windows.
xcb_window_t cw = find_client_win(c, wm, atoms, w->base.id);
if (cw) {
log_debug("(%#010x): client %#010x", w->base.id, cw);
} else {
// Set a window's client window to itself if we couldn't find a
// client window
cw = w->base.id;
log_debug("(%#010x): client self (%s)", w->base.id,
(w->a.override_redirect ? "override-redirected" : "wmwin"));
}
return cw;
}
/**
* Free all resources in a <code>struct _win</code>.
*/
void free_win_res(session_t *ps, struct managed_win *w) {
// No need to call backend release_image here because
// finish_unmap_win should've done that for us.
// XXX unless we are called by session_destroy
// assert(w->win_data == NULL);
free_win_res_glx(ps, w);
free_paint(ps, &w->paint);
free_paint(ps, &w->shadow_paint);
// Above should be done during unmapping
// Except when we are called by session_destroy
pixman_region32_fini(&w->damaged);
pixman_region32_fini(&w->bounding_shape);
// BadDamage may be thrown if the window is destroyed
set_ignore_cookie(&ps->c, xcb_damage_destroy(ps->c.c, w->damage));
rc_region_unref(&w->reg_ignore);
free(w->name);
free(w->class_instance);
free(w->class_general);
free(w->role);
free(w->stale_props);
w->stale_props = NULL;
w->stale_props_capacity = 0;
c2_window_state_destroy(ps->c2_state, &w->c2_state);
}
/// Query the Xorg for information about window `win`, and return that
/// information in a new managed_win object. However, if the window does
/// not need to be managed, the original `win` object is returned.
struct win *attr_ret_nonnull maybe_allocate_managed_win(session_t *ps, struct win *w) {
static const struct managed_win win_def = {
// No need to initialize. (or, you can think that
// they are initialized right here).
// The following ones are updated during paint or paint preprocess
.shadow_opacity = 0.0,
.to_paint = false,
.frame_opacity = 1.0,
.dim = false,
.invert_color = false,
.blur_background = false,
.reg_ignore = NULL,
// The following ones are updated for other reasons
.pixmap_damaged = false, // updated by damage events
.state = WSTATE_UNMAPPED, // updated by window state changes
.in_openclose = true, // set to false after first map is done,
// true here because window is just created
.reg_ignore_valid = false, // set to true when damaged
.flags = WIN_FLAGS_PIXMAP_NONE, // updated by
// property/attributes/etc
// change
.stale_props = NULL,
.stale_props_capacity = 0,
// Runtime variables, updated by dbus
.fade_force = UNSET,
.shadow_force = UNSET,
.focused_force = UNSET,
.invert_color_force = UNSET,
// Initialized in this function
.a = {0},
.pictfmt = NULL,
.client_pictfmt = NULL,
.widthb = 0,
.heightb = 0,
.shadow_dx = 0,
.shadow_dy = 0,
.shadow_width = 0,
.shadow_height = 0,
.damage = XCB_NONE,
// Not initialized until mapped, this variables
// have no meaning or have no use until the window
// is mapped
.win_image = NULL,
.shadow_image = NULL,
.mask_image = NULL,
.prev_trans = NULL,
.shadow = false,
.clip_shadow_above = false,
.fg_shader = NULL,
.randr_monitor = -1,
.mode = WMODE_TRANS,
.ever_damaged = false,
.client_win = XCB_NONE,
.leader = XCB_NONE,
.cache_leader = XCB_NONE,
.window_type = WINTYPE_UNKNOWN,
.focused = false,
.has_opacity_prop = false,
.opacity_prop = OPAQUE,
.opacity_is_set = false,
.opacity_set = 1,
.frame_extents = MARGIN_INIT, // in win_mark_client
.bounding_shaped = false,
.bounding_shape = {0},
.rounded_corners = false,
.paint_excluded = false,
.fade_excluded = false,
.transparent_clipping = false,
.unredir_if_possible_excluded = false,
.prop_shadow = -1,
// following 4 are set in win_mark_client
.name = NULL,
.class_instance = NULL,
.class_general = NULL,
.role = NULL,
// Initialized during paint
.paint = PAINT_INIT,
.shadow_paint = PAINT_INIT,
.corner_radius = 0,
};
assert(!w->destroyed);
assert(w->is_new);
w->is_new = false;
// Reject overlay window
if (w->id == ps->overlay) {
// Would anyone reparent windows to the overlay window? Doing this
// just in case.
return w;
}
auto duplicated_win = wm_find_managed(ps->wm, w->id);
if (duplicated_win) {
log_debug("Window %#010x (recorded name: %s) added multiple "
"times",
w->id, duplicated_win->name);
return &duplicated_win->base;
}
log_debug("Managing window %#010x", w->id);
xcb_get_window_attributes_cookie_t acookie =
xcb_get_window_attributes(ps->c.c, w->id);
xcb_get_window_attributes_reply_t *a =
xcb_get_window_attributes_reply(ps->c.c, acookie, NULL);
if (!a || a->map_state == XCB_MAP_STATE_UNVIEWABLE) {
// Failed to get window attributes or geometry probably means
// the window is gone already. Unviewable means the window is
// already reparented elsewhere.
// BTW, we don't care about Input Only windows, except for
// stacking proposes, so we need to keep track of them still.
free(a);
return w;
}
if (a->_class == XCB_WINDOW_CLASS_INPUT_ONLY) {
// No need to manage this window, but we still keep it on the
// window stack
w->managed = false;
free(a);
return w;
}
// Allocate and initialize the new win structure
auto new_internal = cmalloc(struct managed_win_internal);
auto new = (struct managed_win *)new_internal;
// Fill structure
// We only need to initialize the part that are not initialized
// by map_win
*new = win_def;
new->base = *w;
new->base.managed = true;
new->a = *a;
new->opacity = animatable_new(0);
new->blur_opacity = animatable_new(0);
pixman_region32_init(&new->bounding_shape);
free(a);
xcb_generic_error_t *e;
auto g = xcb_get_geometry_reply(ps->c.c, xcb_get_geometry(ps->c.c, w->id), &e);
if (!g) {
log_error_x_error(e, "Failed to get geometry of window %#010x", w->id);
free(e);
free(new);
return w;
}
new->pending_g = (struct win_geometry){
.x = g->x,
.y = g->y,
.width = g->width,
.height = g->height,
.border_width = g->border_width,
};
free(g);
// Create Damage for window (if not Input Only)
new->damage = x_new_id(&ps->c);
e = xcb_request_check(
ps->c.c, xcb_damage_create_checked(ps->c.c, new->damage, w->id,
XCB_DAMAGE_REPORT_LEVEL_NON_EMPTY));
if (e) {
log_error_x_error(e, "Failed to create damage");
free(e);
free(new);
return w;
}
// Set window event mask
uint32_t frame_event_mask =
XCB_EVENT_MASK_PROPERTY_CHANGE | XCB_EVENT_MASK_SUBSTRUCTURE_NOTIFY;
if (!ps->o.use_ewmh_active_win) {
frame_event_mask |= XCB_EVENT_MASK_FOCUS_CHANGE;
}
xcb_change_window_attributes(ps->c.c, new->base.id, XCB_CW_EVENT_MASK,
(const uint32_t[]){frame_event_mask});
// Add existing subwins of this window
auto tree_reply =
xcb_query_tree_reply(ps->c.c, xcb_query_tree(ps->c.c, new->base.id), NULL);
if (tree_reply) {
auto children = xcb_query_tree_children(tree_reply);
for (int i = 0; i < xcb_query_tree_children_length(tree_reply); i++) {
wm_subwin_add_and_subscribe(ps->wm, &ps->c, children[i], new->base.id);
}
free(tree_reply);
}
// Get notification when the shape of a window changes
if (ps->shape_exists) {
xcb_shape_select_input(ps->c.c, new->base.id, 1);
}
new->pictfmt = x_get_pictform_for_visual(&ps->c, new->a.visual);
new->client_pictfmt = NULL;
// Set all the stale flags on this new window, so it's properties will get
// updated when it's mapped
win_set_flags(new, WIN_FLAGS_CLIENT_STALE | WIN_FLAGS_SIZE_STALE |
WIN_FLAGS_POSITION_STALE | WIN_FLAGS_PROPERTY_STALE |
WIN_FLAGS_FACTOR_CHANGED);
xcb_atom_t init_stale_props[] = {
ps->atoms->a_NET_WM_WINDOW_TYPE, ps->atoms->a_NET_WM_WINDOW_OPACITY,
ps->atoms->a_NET_FRAME_EXTENTS, ps->atoms->aWM_NAME,
ps->atoms->a_NET_WM_NAME, ps->atoms->aWM_CLASS,
ps->atoms->aWM_WINDOW_ROLE, ps->atoms->a_COMPTON_SHADOW,
ps->atoms->aWM_CLIENT_LEADER, ps->atoms->aWM_TRANSIENT_FOR,
ps->atoms->a_NET_WM_STATE,
};
win_set_properties_stale(new, init_stale_props, ARR_SIZE(init_stale_props));
c2_window_state_init(ps->c2_state, &new->c2_state);
pixman_region32_init(&new->damaged);
return &new->base;
}
/**
* Update leader of a window.
*/
static xcb_window_t
win_get_leader_property(struct x_connection *c, struct atom *atoms, xcb_window_t wid,
bool detect_transient, bool detect_client_leader) {
xcb_window_t leader = XCB_NONE;
// Read the leader properties
if (detect_transient) {
leader = wid_get_prop_window(c, wid, atoms->aWM_TRANSIENT_FOR);
}
if (detect_client_leader && leader == XCB_NONE) {
leader = wid_get_prop_window(c, wid, atoms->aWM_CLIENT_LEADER);
}
log_trace("window %#010x: leader %#010x", wid, leader);
return leader;
}
/**
* Internal function of win_get_leader().
*/
static xcb_window_t win_get_leader_raw(session_t *ps, struct managed_win *w, int recursions) {
// Rebuild the cache if needed
if (!w->cache_leader && (w->client_win || w->leader)) {
// Leader defaults to client window
if (!(w->cache_leader = w->leader)) {
w->cache_leader = w->client_win;
}
// If the leader of this window isn't itself, look for its
// ancestors
if (w->cache_leader && w->cache_leader != w->client_win) {
auto wp = wm_find_by_client(ps->wm, w->cache_leader);
if (wp) {
// Dead loop?
if (recursions > WIN_GET_LEADER_MAX_RECURSION) {
return XCB_NONE;
}
w->cache_leader = win_get_leader_raw(ps, wp, recursions + 1);
}
}
}
return w->cache_leader;
}
/**
* Retrieve the <code>WM_CLASS</code> of a window and update its
* <code>win</code> structure.
*/
bool win_update_class(struct x_connection *c, struct atom *atoms, struct managed_win *w) {
char **strlst = NULL;
int nstr = 0;
// Can't do anything if there's no client window
if (!w->client_win) {
return false;
}
// Free and reset old strings
free(w->class_instance);
free(w->class_general);
w->class_instance = NULL;
w->class_general = NULL;
// Retrieve the property string list
if (!wid_get_text_prop(c, atoms, w->client_win, atoms->aWM_CLASS, &strlst, &nstr)) {
return false;
}
// Copy the strings if successful
w->class_instance = strdup(strlst[0]);
if (nstr > 1) {
w->class_general = strdup(strlst[1]);
}
free(strlst);
log_trace("(%#010x): client = %#010x, "
"instance = \"%s\", general = \"%s\"",
w->base.id, w->client_win, w->class_instance, w->class_general);
return true;
}
/**
* Handle window focus change.
*/
static void win_on_focus_change(session_t *ps, struct managed_win *w) {
// If window grouping detection is enabled
if (ps->o.track_leader) {
xcb_window_t leader = win_get_leader(ps, w);
// If the window gets focused, replace the old active_leader
auto active_leader = wm_active_leader(ps->wm);
if (win_is_focused_raw(w) && leader != active_leader) {
xcb_window_t active_leader_old = active_leader;
wm_set_active_leader(ps->wm, leader);
group_on_factor_change(ps, active_leader_old);
group_on_factor_change(ps, leader);
}
// If the group get unfocused, remove it from active_leader
else if (!win_is_focused_raw(w) && leader && leader == active_leader &&
!group_is_focused(ps, leader)) {
wm_set_active_leader(ps->wm, XCB_NONE);
group_on_factor_change(ps, leader);
}
}
// Update everything related to conditions
win_on_factor_change(ps, w);
// Send D-Bus signal
if (ps->o.dbus) {
if (win_is_focused_raw(w)) {
cdbus_ev_win_focusin(session_get_cdbus(ps), &w->base);
} else {
cdbus_ev_win_focusout(session_get_cdbus(ps), &w->base);
}
}
}
/**
* Set real focused state of a window.
*/
void win_set_focused(session_t *ps, struct managed_win *w) {
// Unmapped windows will have their focused state reset on map
if (w->a.map_state != XCB_MAP_STATE_VIEWABLE) {
return;
}
auto old_active_win = wm_active_win(ps->wm);
if (w->is_ewmh_focused) {
assert(old_active_win == w);
return;
}
wm_set_active_win(ps->wm, w);
w->is_ewmh_focused = true;
if (old_active_win) {
assert(old_active_win->is_ewmh_focused);
old_active_win->is_ewmh_focused = false;
win_on_focus_change(ps, old_active_win);
}
win_on_focus_change(ps, w);
}
/**
* Get a rectangular region a window (and possibly its shadow) occupies.
*
* Note w->shadow and shadow geometry must be correct before calling this
* function.
*/
void win_extents(const struct managed_win *w, region_t *res) {
pixman_region32_clear(res);
pixman_region32_union_rect(res, res, w->g.x, w->g.y, (uint)w->widthb, (uint)w->heightb);
if (w->shadow) {
assert(w->shadow_width >= 0 && w->shadow_height >= 0);
pixman_region32_union_rect(res, res, w->g.x + w->shadow_dx,
w->g.y + w->shadow_dy, (uint)w->shadow_width,
(uint)w->shadow_height);
}
}
gen_by_val(win_extents);
/**
* Update the out-dated bounding shape of a window.
*
* Mark the window shape as updated
*/
void win_update_bounding_shape(struct x_connection *c, struct managed_win *w,
bool shape_exists, bool detect_rounded_corners) {
// We don't handle property updates of non-visible windows until they are
// mapped.
assert(w->state == WSTATE_MAPPED);
pixman_region32_clear(&w->bounding_shape);
// Start with the window rectangular region
win_get_region_local(w, &w->bounding_shape);
if (shape_exists) {
w->bounding_shaped = win_bounding_shaped(c, w->base.id);
}
// Only request for a bounding region if the window is shaped
// (while loop is used to avoid goto, not an actual loop)
while (w->bounding_shaped) {
/*
* if window doesn't exist anymore, this will generate an error
* as well as not generate a region.
*/
xcb_shape_get_rectangles_reply_t *r = xcb_shape_get_rectangles_reply(
c->c, xcb_shape_get_rectangles(c->c, w->base.id, XCB_SHAPE_SK_BOUNDING),
NULL);
if (!r) {
break;
}
xcb_rectangle_t *xrects = xcb_shape_get_rectangles_rectangles(r);
int nrects = xcb_shape_get_rectangles_rectangles_length(r);
rect_t *rects = from_x_rects(nrects, xrects);
free(r);
region_t br;
pixman_region32_init_rects(&br, rects, nrects);
free(rects);
// Add border width because we are using a different origin.
// X thinks the top left of the inner window is the origin
// (for the bounding shape, although xcb_get_geometry thinks
// the outer top left (outer means outside of the window
// border) is the origin),
// We think the top left of the border is the origin
pixman_region32_translate(&br, w->g.border_width, w->g.border_width);
// Intersect the bounding region we got with the window rectangle,
// to make sure the bounding region is not bigger than the window
// rectangle
pixman_region32_intersect(&w->bounding_shape, &w->bounding_shape, &br);
pixman_region32_fini(&br);
break;
}
if (w->bounding_shaped && detect_rounded_corners) {
w->rounded_corners = win_has_rounded_corners(w);
}
}
/**
* Reread opacity property of a window.
*/
void win_update_opacity_prop(struct x_connection *c, struct atom *atoms,
struct managed_win *w, bool detect_client_opacity) {
// get frame opacity first
w->has_opacity_prop =
wid_get_opacity_prop(c, atoms, w->base.id, OPAQUE, &w->opacity_prop);
if (w->has_opacity_prop) {
// opacity found
return;
}
if (detect_client_opacity && w->client_win && w->base.id == w->client_win) {
// checking client opacity not allowed
return;
}
// get client opacity
w->has_opacity_prop =
wid_get_opacity_prop(c, atoms, w->client_win, OPAQUE, &w->opacity_prop);
}
/**
* Retrieve frame extents from a window.
*/
void win_update_frame_extents(struct x_connection *c, struct atom *atoms,
struct managed_win *w, xcb_window_t client,
double frame_opacity) {
winprop_t prop =
x_get_prop(c, client, atoms->a_NET_FRAME_EXTENTS, 4L, XCB_ATOM_CARDINAL, 32);
if (prop.nitems == 4) {
int extents[4];
for (int i = 0; i < 4; i++) {
if (prop.c32[i] > (uint32_t)INT_MAX) {
log_warn("Your window manager sets a absurd "
"_NET_FRAME_EXTENTS value (%u), "
"ignoring it.",
prop.c32[i]);
memset(extents, 0, sizeof(extents));
break;
}
extents[i] = (int)prop.c32[i];
}
const bool changed = w->frame_extents.left != extents[0] ||
w->frame_extents.right != extents[1] ||
w->frame_extents.top != extents[2] ||
w->frame_extents.bottom != extents[3];
w->frame_extents.left = extents[0];
w->frame_extents.right = extents[1];
w->frame_extents.top = extents[2];
w->frame_extents.bottom = extents[3];
// If frame_opacity != 1, then frame of this window
// is not included in reg_ignore of underneath windows
if (frame_opacity == 1 && changed) {
w->reg_ignore_valid = false;
}
}
log_trace("(%#010x): %d, %d, %d, %d", w->base.id, w->frame_extents.left,
w->frame_extents.right, w->frame_extents.top, w->frame_extents.bottom);
free_winprop(&prop);
}
bool win_is_region_ignore_valid(session_t *ps, const struct managed_win *w) {
win_stack_foreach_managed(i, wm_stack_end(ps->wm)) {
if (i == w) {
break;
}
if (!i->reg_ignore_valid) {
return false;
}
}
return true;
}
/// Finish the destruction of a window (e.g. after fading has finished).
/// Frees `w`
void destroy_win_finish(session_t *ps, struct win *w) {
log_verbose("Trying to finish destroying (%#010x)", w->id);
auto next_w = wm_stack_next_managed(ps->wm, &w->stack_neighbour);
list_remove(&w->stack_neighbour);
if (w->managed) {
auto mw = (struct managed_win *)w;
unmap_win_finish(ps, mw);
// Unmapping might preserve the shadow image, so free it here
win_release_shadow(ps->backend_data, mw);
win_release_mask(ps->backend_data, mw);
// Invalidate reg_ignore of windows below this one
// TODO(yshui) what if next_w is not mapped??
/* TODO(yshui) seriously figure out how reg_ignore behaves.
* I think if `w` is unmapped, and destroyed after
* paint happened at least once, w->reg_ignore_valid would
* be true, and there is no need to invalid w->next->reg_ignore
* when w is destroyed. */
if (next_w) {
rc_region_unref(&next_w->reg_ignore);
next_w->reg_ignore_valid = false;
}
if (mw == wm_active_win(ps->wm)) {
// Usually, the window cannot be the focused at
// destruction. FocusOut should be generated before the
// window is destroyed. We do this check just to be
// completely sure we don't have dangling references.
log_debug("window %#010x (%s) is destroyed while being "
"focused",
w->id, mw->name);
wm_set_active_win(ps->wm, NULL);
}
free_win_res(ps, mw);
// Drop w from all prev_trans to avoid accessing freed memory in
// repair_win()
// TODO(yshui) there can only be one prev_trans pointing to w
win_stack_foreach_managed(w2, wm_stack_end(ps->wm)) {
if (mw == w2->prev_trans) {
w2->prev_trans = NULL;
}
}
}
free(w);
}
/// Start destroying a window. Windows cannot always be destroyed immediately
/// because of fading and such.
void destroy_win_start(session_t *ps, struct win *w) {
assert(w);
// A toplevel window is destroyed, all of its children lose their
// subwin status.
wm_subwin_remove_and_unsubscribe_for_toplevel(ps->wm, &ps->c, w->id);
auto mw = (struct managed_win *)w;
log_debug("Destroying %#010x \"%s\", managed = %d", w->id,
(w->managed ? mw->name : NULL), w->managed);
// Delete destroyed window from the hash table, even though the window
// might still be rendered for a while. We need to make sure future window
// with the same window id won't confuse us. Keep the window in the window
// stack if it's managed and mapped, since we might still need to render
// it (e.g. fading out). Window will be removed from the stack when it
// finishes destroying.
wm_remove(ps->wm, w);
if (w->managed) {
if (mw->state != WSTATE_UNMAPPED) {
// Only UNMAPPED state has window resources freed,
// otherwise we need to call unmap_win_finish to free
// them.
log_warn("Did X server not unmap window %#010x before destroying "
"it?",
w->id);
}
// Clear IMAGES_STALE flags since the window is destroyed: Clear
// PIXMAP_STALE as there is no pixmap available anymore, so STALE
// doesn't make sense.
// XXX Clear SHADOW_STALE as setting/clearing flags on a destroyed
// window doesn't work leading to an inconsistent state where the
// shadow is refreshed but the flags are stuck in STALE. Do this
// before changing the window state to destroying
win_clear_flags(mw, WIN_FLAGS_PIXMAP_STALE);
// If size/shape/position information is stale,
// win_process_update_flags will update them and add the new
// window extents to damage. Since the window has been destroyed,
// we cannot get the complete information at this point, so we
// just add what we currently have to the damage.
if (win_check_flags_any(mw, WIN_FLAGS_SIZE_STALE | WIN_FLAGS_POSITION_STALE)) {
add_damage_from_win(ps, mw);
}
if (win_check_flags_all(mw, WIN_FLAGS_CLIENT_STALE)) {
mw->client_win = mw->base.id;
log_debug("(%#010x): client self (%s)", mw->base.id,
(mw->a.override_redirect ? "override-redirected" : "wmwin"));
}
// Clear some flags about stale window information. Because now
// the window is destroyed, we can't update them anyway.
win_clear_flags(mw, WIN_FLAGS_SIZE_STALE | WIN_FLAGS_POSITION_STALE |
WIN_FLAGS_PROPERTY_STALE |
WIN_FLAGS_FACTOR_CHANGED | WIN_FLAGS_CLIENT_STALE);
// Update state flags of a managed window
mw->state = WSTATE_DESTROYED;
mw->a.map_state = XCB_MAP_STATE_UNMAPPED;
mw->in_openclose = true;
// We don't initiate animation here, because it should already have been
// started by unmap_win_start, because X automatically unmaps windows
// before destroying them. But we do need to stop animation if
// no_fading_destroyed_windows, or no_fading_openclose is enabled.
if (!win_should_fade(ps, mw)) {
win_skip_fading(mw);
}
}
// don't need win_ev_stop because the window is gone anyway
// Send D-Bus signal
if (ps->o.dbus) {
cdbus_ev_win_destroyed(session_get_cdbus(ps), w);
}
if (!ps->redirected && w->managed) {
// Skip transition if we are not rendering
win_skip_fading(mw);
}
}
void unmap_win_start(session_t *ps, struct managed_win *w) {
assert(w);
assert(w->base.managed);
assert(w->a._class != XCB_WINDOW_CLASS_INPUT_ONLY);
log_debug("Unmapping %#010x \"%s\"", w->base.id, w->name);
assert(w->state != WSTATE_DESTROYED);
if (unlikely(w->state == WSTATE_UNMAPPED)) {
assert(win_check_flags_all(w, WIN_FLAGS_MAPPED));
// Window is mapped, but we hadn't had a chance to handle the MAPPED flag.
// Clear the pending map as this window is now unmapped
win_clear_flags(w, WIN_FLAGS_MAPPED);
return;
}
// Note we don't update focused window here. This will either be
// triggered by subsequence Focus{In, Out} event, or by recheck_focus
w->a.map_state = XCB_MAP_STATE_UNMAPPED;
w->state = WSTATE_UNMAPPED;
win_start_fade(ps, w, 0);
// Send D-Bus signal
if (ps->o.dbus) {
cdbus_ev_win_unmapped(session_get_cdbus(ps), &w->base);
}
if (!ps->redirected || !w->ever_damaged) {
// If we are not redirected, we skip fading because we aren't
// rendering anything anyway. If the window wasn't ever damaged,
// it shouldn't be painted either. But a fading out window is
// always painted, so we have to skip fading here.
win_skip_fading(w);
}
}
/// Skip the current in progress fading of window,
/// transition the window straight to its end state
void win_skip_fading(struct managed_win *w) {
if (w->number_of_animations == 0) {
return;
}
log_debug("Skipping fading process of window %#010x (%s)", w->base.id, w->name);
animatable_skip(&w->opacity);
animatable_skip(&w->blur_opacity);
}
// TODO(absolutelynothelix): rename to x_update_win_(randr_?)monitor and move to
// the x.c.
void win_update_monitor(struct x_monitors *monitors, struct managed_win *mw) {
mw->randr_monitor = -1;
for (int i = 0; i < monitors->count; i++) {
auto e = pixman_region32_extents(&monitors->regions[i]);
if (e->x1 <= mw->g.x && e->y1 <= mw->g.y &&
e->x2 >= mw->g.x + mw->widthb && e->y2 >= mw->g.y + mw->heightb) {
mw->randr_monitor = i;
log_debug("Window %#010x (%s), %dx%d+%dx%d, is entirely on the "
"monitor %d (%dx%d+%dx%d)",
mw->base.id, mw->name, mw->g.x, mw->g.y, mw->widthb,
mw->heightb, i, e->x1, e->y1, e->x2 - e->x1, e->y2 - e->y1);
return;
}
}
log_debug("Window %#010x (%s), %dx%d+%dx%d, is not entirely on any monitor",
mw->base.id, mw->name, mw->g.x, mw->g.y, mw->widthb, mw->heightb);
}
/// Map an already registered window
void map_win_start(session_t *ps, struct managed_win *w) {
assert(ps->server_grabbed);
assert(w);
// Don't care about window mapping if it's an InputOnly window
// Also, try avoiding mapping a window twice
if (w->a._class == XCB_WINDOW_CLASS_INPUT_ONLY) {
return;
}
log_debug("Mapping (%#010x \"%s\")", w->base.id, w->name);
assert(w->state != WSTATE_DESTROYED);
if (w->state == WSTATE_MAPPED) {
log_error("Mapping an already mapped window");
assert(false);
return;
}
// Rant: window size could change after we queried its geometry here and
// before we get its pixmap. Later, when we get back to the event
// processing loop, we will get the notification about size change from
// Xserver and try to refresh the pixmap, while the pixmap is actually
// already up-to-date (i.e. the notification is stale). There is basically
// no real way to prevent this, aside from grabbing the server.
// XXX Can we assume map_state is always viewable?
w->a.map_state = XCB_MAP_STATE_VIEWABLE;
// Update window mode here to check for ARGB windows
w->mode = win_calc_mode(w);
log_debug("Window (%#010x) has type %s", w->base.id, WINTYPES[w->window_type].name);
w->state = WSTATE_MAPPED;
win_start_fade(ps, w, 1);
log_debug("Window %#010x has opacity %f, opacity target is %f", w->base.id,
animatable_get(&w->opacity), w->opacity.target);
// Send D-Bus signal
if (ps->o.dbus) {
cdbus_ev_win_mapped(session_get_cdbus(ps), &w->base);
}
if (!ps->redirected) {
win_skip_fading(w);
}
}
/**
* Update target window opacity depending on the current state.
*/
void win_update_opacity_target(session_t *ps, struct managed_win *w) {
win_start_fade(ps, w, w->blur_opacity.target); // We don't want to change
// blur_opacity target
if (w->number_of_animations == 0) {
return;
}
log_debug("Window %#010x (%s) opacity %f, opacity target %f, start %f", w->base.id,
w->name, animatable_get(&w->opacity), w->opacity.target, w->opacity.start);
if (!ps->redirected) {
win_skip_fading(w);
}
}
/// Set flags on a window. Some sanity checks are performed
void win_set_flags(struct managed_win *w, uint64_t flags) {
log_debug("Set flags %" PRIu64 " to window %#010x (%s)", flags, w->base.id, w->name);
if (unlikely(w->state == WSTATE_DESTROYED)) {
log_error("Flags set on a destroyed window %#010x (%s)", w->base.id, w->name);
return;
}
w->flags |= flags;
}
/// Clear flags on a window. Some sanity checks are performed
void win_clear_flags(struct managed_win *w, uint64_t flags) {
log_debug("Clear flags %" PRIu64 " from window %#010x (%s)", flags, w->base.id,
w->name);
if (unlikely(w->state == WSTATE_DESTROYED)) {
log_warn("Flags cleared on a destroyed window %#010x (%s)", w->base.id,
w->name);
return;
}
w->flags = w->flags & (~flags);
}
void win_set_properties_stale(struct managed_win *w, const xcb_atom_t *props, int nprops) {
auto const bits_per_element = sizeof(*w->stale_props) * 8;
size_t new_capacity = w->stale_props_capacity;
// Calculate the new capacity of the properties array
for (int i = 0; i < nprops; i++) {
if (props[i] >= new_capacity * bits_per_element) {
new_capacity = props[i] / bits_per_element + 1;
}
}
// Reallocate if necessary
if (new_capacity > w->stale_props_capacity) {
w->stale_props =
realloc(w->stale_props, new_capacity * sizeof(*w->stale_props));
// Clear the content of the newly allocated bytes
memset(w->stale_props + w->stale_props_capacity, 0,
(new_capacity - w->stale_props_capacity) * sizeof(*w->stale_props));
w->stale_props_capacity = new_capacity;
}
// Set the property bits
for (int i = 0; i < nprops; i++) {
w->stale_props[props[i] / bits_per_element] |=
1UL << (props[i] % bits_per_element);
}
win_set_flags(w, WIN_FLAGS_PROPERTY_STALE);
}
static void win_clear_all_properties_stale(struct managed_win *w) {
memset(w->stale_props, 0, w->stale_props_capacity * sizeof(*w->stale_props));
win_clear_flags(w, WIN_FLAGS_PROPERTY_STALE);
}
static bool win_fetch_and_unset_property_stale(struct managed_win *w, xcb_atom_t prop) {
auto const bits_per_element = sizeof(*w->stale_props) * 8;
if (prop >= w->stale_props_capacity * bits_per_element) {
return false;
}
auto const mask = 1UL << (prop % bits_per_element);
bool ret = w->stale_props[prop / bits_per_element] & mask;
w->stale_props[prop / bits_per_element] &= ~mask;
return ret;
}
bool win_check_flags_any(struct managed_win *w, uint64_t flags) {
return (w->flags & flags) != 0;
}
bool win_check_flags_all(struct managed_win *w, uint64_t flags) {
return (w->flags & flags) == flags;
}
/**
* Check if a window is a fullscreen window.
*
* It's not using w->border_size for performance measures.
*/
void win_update_is_fullscreen(const session_t *ps, struct managed_win *w) {
if (!ps->o.no_ewmh_fullscreen && w->is_ewmh_fullscreen) {
w->is_fullscreen = true;
return;
}
w->is_fullscreen = w->g.x <= 0 && w->g.y <= 0 &&
(w->g.x + w->widthb) >= ps->root_width &&
(w->g.y + w->heightb) >= ps->root_height &&
(!w->bounding_shaped || w->rounded_corners);
}
/**
* Check if a window has BYPASS_COMPOSITOR property set
*
* TODO(yshui) cache this property
*/
bool win_is_bypassing_compositor(const session_t *ps, const struct managed_win *w) {
bool ret = false;
auto prop = x_get_prop(&ps->c, w->client_win, ps->atoms->a_NET_WM_BYPASS_COMPOSITOR,
1L, XCB_ATOM_CARDINAL, 32);
if (prop.nitems && *prop.c32 == 1) {
ret = true;
}
free_winprop(&prop);
return ret;
}
/**
* Check if a window is focused, without using any focus rules or forced focus
* settings
*/
bool win_is_focused_raw(const struct managed_win *w) {
return w->a.map_state == XCB_MAP_STATE_VIEWABLE && w->is_ewmh_focused;
}