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weston/xwayland/window-manager.c

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/*
* Copyright © 2011 Intel Corporation
*
* Permission is hereby granted, free of charge, to any person obtaining
* a copy of this software and associated documentation files (the
* "Software"), to deal in the Software without restriction, including
* without limitation the rights to use, copy, modify, merge, publish,
* distribute, sublicense, and/or sell copies of the Software, and to
* permit persons to whom the Software is furnished to do so, subject to
* the following conditions:
*
* The above copyright notice and this permission notice (including the
* next paragraph) shall be included in all copies or substantial
* portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
* BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
* ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
* CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
* SOFTWARE.
*/
#include "config.h"
#include <stdlib.h>
#include <stdint.h>
#include <inttypes.h>
#include <stdio.h>
#include <string.h>
#include <sys/socket.h>
#include <sys/un.h>
#include <fcntl.h>
#include <errno.h>
#include <unistd.h>
#include <signal.h>
#include <limits.h>
#include <assert.h>
#include <X11/Xcursor/Xcursor.h>
#include <linux/input.h>
#include <libweston/libweston.h>
#include "xwayland.h"
#include "xwayland-internal-interface.h"
#include "shared/cairo-util.h"
#include "hash.h"
#include "shared/helpers.h"
#include "shared/xcb-xwayland.h"
struct wm_size_hints {
uint32_t flags;
int32_t x, y;
int32_t width, height; /* should set so old wm's don't mess up */
int32_t min_width, min_height;
int32_t max_width, max_height;
int32_t width_inc, height_inc;
struct {
int32_t x;
int32_t y;
} min_aspect, max_aspect;
int32_t base_width, base_height;
int32_t win_gravity;
};
#define USPosition (1L << 0)
#define USSize (1L << 1)
#define PPosition (1L << 2)
#define PSize (1L << 3)
#define PMinSize (1L << 4)
#define PMaxSize (1L << 5)
#define PResizeInc (1L << 6)
#define PAspect (1L << 7)
#define PBaseSize (1L << 8)
#define PWinGravity (1L << 9)
struct motif_wm_hints {
uint32_t flags;
uint32_t functions;
uint32_t decorations;
int32_t input_mode;
uint32_t status;
};
#define MWM_HINTS_FUNCTIONS (1L << 0)
#define MWM_HINTS_DECORATIONS (1L << 1)
#define MWM_HINTS_INPUT_MODE (1L << 2)
#define MWM_HINTS_STATUS (1L << 3)
#define MWM_FUNC_ALL (1L << 0)
#define MWM_FUNC_RESIZE (1L << 1)
#define MWM_FUNC_MOVE (1L << 2)
#define MWM_FUNC_MINIMIZE (1L << 3)
#define MWM_FUNC_MAXIMIZE (1L << 4)
#define MWM_FUNC_CLOSE (1L << 5)
#define MWM_DECOR_ALL (1L << 0)
#define MWM_DECOR_BORDER (1L << 1)
#define MWM_DECOR_RESIZEH (1L << 2)
#define MWM_DECOR_TITLE (1L << 3)
#define MWM_DECOR_MENU (1L << 4)
#define MWM_DECOR_MINIMIZE (1L << 5)
#define MWM_DECOR_MAXIMIZE (1L << 6)
#define MWM_DECOR_EVERYTHING \
(MWM_DECOR_BORDER | MWM_DECOR_RESIZEH | MWM_DECOR_TITLE | \
MWM_DECOR_MENU | MWM_DECOR_MINIMIZE | MWM_DECOR_MAXIMIZE)
#define MWM_INPUT_MODELESS 0
#define MWM_INPUT_PRIMARY_APPLICATION_MODAL 1
#define MWM_INPUT_SYSTEM_MODAL 2
#define MWM_INPUT_FULL_APPLICATION_MODAL 3
#define MWM_INPUT_APPLICATION_MODAL MWM_INPUT_PRIMARY_APPLICATION_MODAL
#define MWM_TEAROFF_WINDOW (1L<<0)
#define _NET_WM_MOVERESIZE_SIZE_TOPLEFT 0
#define _NET_WM_MOVERESIZE_SIZE_TOP 1
#define _NET_WM_MOVERESIZE_SIZE_TOPRIGHT 2
#define _NET_WM_MOVERESIZE_SIZE_RIGHT 3
#define _NET_WM_MOVERESIZE_SIZE_BOTTOMRIGHT 4
#define _NET_WM_MOVERESIZE_SIZE_BOTTOM 5
#define _NET_WM_MOVERESIZE_SIZE_BOTTOMLEFT 6
#define _NET_WM_MOVERESIZE_SIZE_LEFT 7
#define _NET_WM_MOVERESIZE_MOVE 8 /* movement only */
#define _NET_WM_MOVERESIZE_SIZE_KEYBOARD 9 /* size via keyboard */
#define _NET_WM_MOVERESIZE_MOVE_KEYBOARD 10 /* move via keyboard */
#define _NET_WM_MOVERESIZE_CANCEL 11 /* cancel operation */
struct weston_output_weak_ref {
struct weston_output *output;
struct wl_listener destroy_listener;
};
struct weston_wm_window {
struct weston_wm *wm;
xcb_window_t id;
xcb_window_t frame_id;
struct frame *frame;
cairo_surface_t *cairo_surface;
uint32_t surface_id;
struct weston_surface *surface;
struct weston_desktop_xwayland_surface *shsurf;
struct wl_listener surface_destroy_listener;
struct wl_event_source *repaint_source;
struct wl_event_source *configure_source;
int properties_dirty;
int pid;
char *machine;
char *class;
char *name;
struct weston_wm_window *transient_for;
uint32_t protocols;
xcb_atom_t type;
int width, height;
int x;
int y;
bool pos_dirty;
int map_request_x;
int map_request_y;
struct weston_output_weak_ref legacy_fullscreen_output;
int saved_width, saved_height;
int decorate;
uint32_t last_button_time;
int did_double;
int override_redirect;
int fullscreen;
int has_alpha;
int delete_window;
int maximized_vert;
int maximized_horz;
struct wm_size_hints size_hints;
struct motif_wm_hints motif_hints;
struct wl_list link;
};
static void
weston_wm_window_set_allow_commits(struct weston_wm_window *window, bool allow);
static struct weston_wm_window *
get_wm_window(struct weston_surface *surface);
static void
weston_wm_set_net_active_window(struct weston_wm *wm, xcb_window_t window);
static void
weston_wm_window_schedule_repaint(struct weston_wm_window *window);
static int
legacy_fullscreen(struct weston_wm *wm,
struct weston_wm_window *window,
struct weston_output **output_ret);
static void
xserver_map_shell_surface(struct weston_wm_window *window,
struct weston_surface *surface);
static bool
wm_debug_is_enabled(struct weston_wm *wm)
{
return weston_log_scope_is_enabled(wm->server->wm_debug);
}
static void __attribute__ ((format (printf, 2, 3)))
wm_printf(struct weston_wm *wm, const char *fmt, ...)
{
va_list ap;
char timestr[128];
if (wm_debug_is_enabled(wm))
weston_log_scope_printf(wm->server->wm_debug, "%s ",
weston_log_scope_timestamp(wm->server->wm_debug,
timestr, sizeof timestr));
va_start(ap, fmt);
weston_log_scope_vprintf(wm->server->wm_debug, fmt, ap);
va_end(ap);
}
static void
weston_output_weak_ref_init(struct weston_output_weak_ref *ref)
{
ref->output = NULL;
}
static void
weston_output_weak_ref_clear(struct weston_output_weak_ref *ref)
{
if (!ref->output)
return;
wl_list_remove(&ref->destroy_listener.link);
ref->output = NULL;
}
static void
weston_output_weak_ref_handle_destroy(struct wl_listener *listener, void *data)
{
struct weston_output_weak_ref *ref;
ref = wl_container_of(listener, ref, destroy_listener);
assert(ref->output == data);
weston_output_weak_ref_clear(ref);
}
static void
weston_output_weak_ref_set(struct weston_output_weak_ref *ref,
struct weston_output *output)
{
weston_output_weak_ref_clear(ref);
if (!output)
return;
ref->destroy_listener.notify = weston_output_weak_ref_handle_destroy;
wl_signal_add(&output->destroy_signal, &ref->destroy_listener);
ref->output = output;
}
static bool __attribute__ ((warn_unused_result))
wm_lookup_window(struct weston_wm *wm, xcb_window_t hash,
struct weston_wm_window **window)
{
*window = hash_table_lookup(wm->window_hash, hash);
if (*window)
return true;
return false;
}
static xcb_cursor_t
xcb_cursor_image_load_cursor(struct weston_wm *wm, const XcursorImage *img)
{
xcb_connection_t *c = wm->conn;
xcb_screen_iterator_t s = xcb_setup_roots_iterator(xcb_get_setup(c));
xcb_screen_t *screen = s.data;
xcb_gcontext_t gc;
xcb_pixmap_t pix;
xcb_render_picture_t pic;
xcb_cursor_t cursor;
int stride = img->width * 4;
pix = xcb_generate_id(c);
xcb_create_pixmap(c, 32, pix, screen->root, img->width, img->height);
pic = xcb_generate_id(c);
xcb_render_create_picture(c, pic, pix, wm->format_rgba.id, 0, 0);
gc = xcb_generate_id(c);
xcb_create_gc(c, gc, pix, 0, 0);
xcb_put_image(c, XCB_IMAGE_FORMAT_Z_PIXMAP, pix, gc,
img->width, img->height, 0, 0, 0, 32,
stride * img->height, (uint8_t *) img->pixels);
xcb_free_gc(c, gc);
cursor = xcb_generate_id(c);
xcb_render_create_cursor(c, cursor, pic, img->xhot, img->yhot);
xcb_render_free_picture(c, pic);
xcb_free_pixmap(c, pix);
return cursor;
}
static xcb_cursor_t
xcb_cursor_images_load_cursor(struct weston_wm *wm, const XcursorImages *images)
{
/* TODO: treat animated cursors as well */
if (images->nimage != 1)
return -1;
return xcb_cursor_image_load_cursor(wm, images->images[0]);
}
static xcb_cursor_t
xcb_cursor_library_load_cursor(struct weston_wm *wm, const char *file)
{
xcb_cursor_t cursor;
XcursorImages *images;
char *v = NULL;
char *theme;
int size = 0;
if (!file)
return 0;
v = getenv ("XCURSOR_SIZE");
if (v)
size = atoi(v);
if (!size)
size = 32;
theme = getenv("XCURSOR_THEME");
images = XcursorLibraryLoadImages(file, theme, size);
if (!images)
return -1;
cursor = xcb_cursor_images_load_cursor (wm, images);
XcursorImagesDestroy (images);
return cursor;
}
static unsigned
dump_cardinal_array_elem(FILE *fp, unsigned format,
void *arr, unsigned len, unsigned ind)
{
const char *comma;
/* If more than 16 elements, print 0-14, ..., last */
if (ind > 14 && ind < len - 1) {
fprintf(fp, ", ...");
return len - 1;
}
comma = ind ? ", " : "";
switch (format) {
case 32:
fprintf(fp, "%s%" PRIu32, comma, ((uint32_t *)arr)[ind]);
break;
case 16:
fprintf(fp, "%s%" PRIu16, comma, ((uint16_t *)arr)[ind]);
break;
case 8:
fprintf(fp, "%s%" PRIu8, comma, ((uint8_t *)arr)[ind]);
break;
default:
fprintf(fp, "%s???", comma);
}
return ind + 1;
}
static void
dump_cardinal_array(FILE *fp, xcb_get_property_reply_t *reply)
{
unsigned i = 0;
void *arr;
assert(reply->type == XCB_ATOM_CARDINAL);
arr = xcb_get_property_value(reply);
fprintf(fp, "[");
while (i < reply->value_len)
i = dump_cardinal_array_elem(fp, reply->format,
arr, reply->value_len, i);
fprintf(fp, "]");
}
void
dump_property(FILE *fp, struct weston_wm *wm,
xcb_atom_t property, xcb_get_property_reply_t *reply)
{
int32_t *incr_value;
const char *text_value, *name;
xcb_atom_t *atom_value;
xcb_window_t *window_value;
int width, len;
uint32_t i;
width = fprintf(fp, "%s: ", get_atom_name(wm->conn, property));
if (reply == NULL) {
fprintf(fp, "(no reply)\n");
return;
}
width += fprintf(fp, "%s/%d, length %d (value_len %d): ",
get_atom_name(wm->conn, reply->type),
reply->format,
xcb_get_property_value_length(reply),
reply->value_len);
if (reply->type == wm->atom.incr) {
incr_value = xcb_get_property_value(reply);
fprintf(fp, "%d\n", *incr_value);
} else if (reply->type == wm->atom.utf8_string ||
reply->type == wm->atom.string) {
text_value = xcb_get_property_value(reply);
if (reply->value_len > 40)
len = 40;
else
len = reply->value_len;
fprintf(fp, "\"%.*s\"\n", len, text_value);
} else if (reply->type == XCB_ATOM_ATOM) {
atom_value = xcb_get_property_value(reply);
for (i = 0; i < reply->value_len; i++) {
name = get_atom_name(wm->conn, atom_value[i]);
if (width + strlen(name) + 2 > 78) {
fprintf(fp, "\n ");
width = 4;
} else if (i > 0) {
width += fprintf(fp, ", ");
}
width += fprintf(fp, "%s", name);
}
fprintf(fp, "\n");
} else if (reply->type == XCB_ATOM_CARDINAL) {
dump_cardinal_array(fp, reply);
fprintf(fp, "\n");
} else if (reply->type == XCB_ATOM_WINDOW && reply->format == 32) {
window_value = xcb_get_property_value(reply);
fprintf(fp, "win %u\n", *window_value);
} else {
fprintf(fp, "huh?\n");
}
}
static void
read_and_dump_property(FILE *fp, struct weston_wm *wm,
xcb_window_t window, xcb_atom_t property)
{
xcb_get_property_reply_t *reply;
xcb_get_property_cookie_t cookie;
cookie = xcb_get_property(wm->conn, 0, window,
property, XCB_ATOM_ANY, 0, 2048);
reply = xcb_get_property_reply(wm->conn, cookie, NULL);
dump_property(fp, wm, property, reply);
free(reply);
}
/* We reuse some predefined, but otherwise useles atoms
* as local type placeholders that never touch the X11 server,
* to make weston_wm_window_read_properties() less exceptional.
*/
#define TYPE_WM_PROTOCOLS XCB_ATOM_CUT_BUFFER0
#define TYPE_MOTIF_WM_HINTS XCB_ATOM_CUT_BUFFER1
#define TYPE_NET_WM_STATE XCB_ATOM_CUT_BUFFER2
#define TYPE_WM_NORMAL_HINTS XCB_ATOM_CUT_BUFFER3
static void
weston_wm_window_read_properties(struct weston_wm_window *window)
{
struct weston_wm *wm = window->wm;
#define F(field) (&window->field)
const struct {
xcb_atom_t atom;
xcb_atom_t type;
void *ptr;
} props[] = {
{ XCB_ATOM_WM_CLASS, XCB_ATOM_STRING, F(class) },
{ XCB_ATOM_WM_NAME, XCB_ATOM_STRING, F(name) },
{ XCB_ATOM_WM_TRANSIENT_FOR, XCB_ATOM_WINDOW, F(transient_for) },
{ wm->atom.wm_protocols, TYPE_WM_PROTOCOLS, NULL },
{ wm->atom.wm_normal_hints, TYPE_WM_NORMAL_HINTS, NULL },
{ wm->atom.net_wm_state, TYPE_NET_WM_STATE, NULL },
{ wm->atom.net_wm_window_type, XCB_ATOM_ATOM, F(type) },
{ wm->atom.net_wm_name, XCB_ATOM_STRING, F(name) },
{ wm->atom.net_wm_pid, XCB_ATOM_CARDINAL, F(pid) },
{ wm->atom.motif_wm_hints, TYPE_MOTIF_WM_HINTS, NULL },
{ wm->atom.wm_client_machine, XCB_ATOM_WM_CLIENT_MACHINE, F(machine) },
};
#undef F
xcb_get_property_cookie_t cookie[ARRAY_LENGTH(props)];
xcb_get_property_reply_t *reply;
void *p;
uint32_t *xid;
xcb_atom_t *atom;
uint32_t i;
char name[1024];
if (!window->properties_dirty)
return;
window->properties_dirty = 0;
for (i = 0; i < ARRAY_LENGTH(props); i++)
cookie[i] = xcb_get_property(wm->conn,
0, /* delete */
window->id,
props[i].atom,
XCB_ATOM_ANY, 0, 2048);
window->decorate = window->override_redirect ? 0 : MWM_DECOR_EVERYTHING;
window->size_hints.flags = 0;
window->motif_hints.flags = 0;
window->delete_window = 0;
for (i = 0; i < ARRAY_LENGTH(props); i++) {
reply = xcb_get_property_reply(wm->conn, cookie[i], NULL);
if (!reply)
/* Bad window, typically */
continue;
if (reply->type == XCB_ATOM_NONE) {
/* No such property */
free(reply);
continue;
}
p = props[i].ptr;
switch (props[i].type) {
case XCB_ATOM_WM_CLIENT_MACHINE:
case XCB_ATOM_STRING:
/* FIXME: We're using this for both string and
utf8_string */
if (*(char **) p)
free(*(char **) p);
*(char **) p =
strndup(xcb_get_property_value(reply),
xcb_get_property_value_length(reply));
break;
case XCB_ATOM_WINDOW:
xid = xcb_get_property_value(reply);
if (!wm_lookup_window(wm, *xid, p))
weston_log("XCB_ATOM_WINDOW contains window"
" id not found in hash table.\n");
break;
case XCB_ATOM_CARDINAL:
case XCB_ATOM_ATOM:
atom = xcb_get_property_value(reply);
*(xcb_atom_t *) p = *atom;
break;
case TYPE_WM_PROTOCOLS:
atom = xcb_get_property_value(reply);
for (i = 0; i < reply->value_len; i++)
if (atom[i] == wm->atom.wm_delete_window) {
window->delete_window = 1;
break;
}
break;
case TYPE_WM_NORMAL_HINTS:
memcpy(&window->size_hints,
xcb_get_property_value(reply),
sizeof window->size_hints);
break;
case TYPE_NET_WM_STATE:
window->fullscreen = 0;
atom = xcb_get_property_value(reply);
for (i = 0; i < reply->value_len; i++) {
if (atom[i] == wm->atom.net_wm_state_fullscreen)
window->fullscreen = 1;
if (atom[i] == wm->atom.net_wm_state_maximized_vert)
window->maximized_vert = 1;
if (atom[i] == wm->atom.net_wm_state_maximized_horz)
window->maximized_horz = 1;
}
break;
case TYPE_MOTIF_WM_HINTS:
memcpy(&window->motif_hints,
xcb_get_property_value(reply),
sizeof window->motif_hints);
if (window->motif_hints.flags & MWM_HINTS_DECORATIONS) {
if (window->motif_hints.decorations & MWM_DECOR_ALL)
/* MWM_DECOR_ALL means all except the other values listed. */
window->decorate =
MWM_DECOR_EVERYTHING & (~window->motif_hints.decorations);
else
window->decorate =
window->motif_hints.decorations;
}
break;
default:
break;
}
free(reply);
}
if (window->pid > 0) {
gethostname(name, sizeof(name));
for (i = 0; i < sizeof(name); i++) {
if (name[i] == '\0')
break;
}
if (i == sizeof(name))
name[0] = '\0'; /* ignore stupid hostnames */
/* this is only one heuristic to guess the PID of a client is
* valid, assuming it's compliant with icccm and ewmh.
* Non-compliants and remote applications of course fail. */
if (!window->machine || strcmp(window->machine, name))
window->pid = 0;
}
}
#undef TYPE_WM_PROTOCOLS
#undef TYPE_MOTIF_WM_HINTS
#undef TYPE_NET_WM_STATE
#undef TYPE_WM_NORMAL_HINTS
static void
weston_wm_window_get_frame_size(struct weston_wm_window *window,
int *width, int *height)
{
struct theme *t = window->wm->theme;
if (window->fullscreen) {
*width = window->width;
*height = window->height;
} else if (window->decorate && window->frame) {
*width = frame_width(window->frame);
*height = frame_height(window->frame);
} else {
*width = window->width + t->margin * 2;
*height = window->height + t->margin * 2;
}
}
static void
weston_wm_window_get_child_position(struct weston_wm_window *window,
int *x, int *y)
{
struct theme *t = window->wm->theme;
if (window->fullscreen) {
*x = 0;
*y = 0;
} else if (window->decorate && window->frame) {
frame_interior(window->frame, x, y, NULL, NULL);
} else {
*x = t->margin;
*y = t->margin;
}
}
static void
weston_wm_window_send_configure_notify(struct weston_wm_window *window)
{
xcb_configure_notify_event_t configure_notify;
struct weston_wm *wm = window->wm;
int x, y;
weston_wm_window_get_child_position(window, &x, &y);
configure_notify.response_type = XCB_CONFIGURE_NOTIFY;
configure_notify.pad0 = 0;
configure_notify.event = window->id;
configure_notify.window = window->id;
configure_notify.above_sibling = XCB_WINDOW_NONE;
configure_notify.x = x;
configure_notify.y = y;
configure_notify.width = window->width;
configure_notify.height = window->height;
configure_notify.border_width = 0;
configure_notify.override_redirect = 0;
configure_notify.pad1 = 0;
xcb_send_event(wm->conn, 0, window->id,
XCB_EVENT_MASK_STRUCTURE_NOTIFY,
(char *) &configure_notify);
}
static void
weston_wm_configure_window(struct weston_wm *wm, xcb_window_t window_id,
uint16_t mask, const uint32_t *values)
{
static const struct {
xcb_config_window_t bitmask;
const char *name;
} names[] = {
{ XCB_CONFIG_WINDOW_X, "x" },
{ XCB_CONFIG_WINDOW_Y, "y" },
{ XCB_CONFIG_WINDOW_WIDTH, "width" },
{ XCB_CONFIG_WINDOW_HEIGHT, "height" },
{ XCB_CONFIG_WINDOW_BORDER_WIDTH, "border_width" },
{ XCB_CONFIG_WINDOW_SIBLING, "sibling" },
{ XCB_CONFIG_WINDOW_STACK_MODE, "stack_mode" },
};
char *buf = NULL;
size_t sz = 0;
FILE *fp;
unsigned i, v;
xcb_configure_window(wm->conn, window_id, mask, values);
if (!wm_debug_is_enabled(wm))
return;
fp = open_memstream(&buf, &sz);
if (!fp)
return;
fprintf(fp, "XWM: configure window %d:", window_id);
for (i = 0, v = 0; i < ARRAY_LENGTH(names); i++) {
if (mask & names[i].bitmask)
fprintf(fp, " %s=%d", names[i].name, values[v++]);
}
fclose(fp);
wm_printf(wm, "%s\n", buf);
free(buf);
}
static void
weston_wm_window_configure_frame(struct weston_wm_window *window)
{
uint16_t mask;
uint32_t values[2];
int width, height;
if (!window->frame_id)
return;
weston_wm_window_get_frame_size(window, &width, &height);
values[0] = width;
values[1] = height;
mask = XCB_CONFIG_WINDOW_WIDTH | XCB_CONFIG_WINDOW_HEIGHT;
weston_wm_configure_window(window->wm, window->frame_id, mask, values);
}
static void
weston_wm_handle_configure_request(struct weston_wm *wm, xcb_generic_event_t *event)
{
xcb_configure_request_event_t *configure_request =
(xcb_configure_request_event_t *) event;
struct weston_wm_window *window;
uint32_t values[16];
uint16_t mask;
int x, y;
int i = 0;
wm_printf(wm, "XCB_CONFIGURE_REQUEST (window %d) %d,%d @ %dx%d\n",
configure_request->window,
configure_request->x, configure_request->y,
configure_request->width, configure_request->height);
if (!wm_lookup_window(wm, configure_request->window, &window))
return;
if (window->fullscreen) {
weston_wm_window_send_configure_notify(window);
return;
}
if (configure_request->value_mask & XCB_CONFIG_WINDOW_WIDTH)
window->width = configure_request->width;
if (configure_request->value_mask & XCB_CONFIG_WINDOW_HEIGHT)
window->height = configure_request->height;
if (window->frame) {
weston_wm_window_set_allow_commits(window, false);
frame_resize_inside(window->frame, window->width, window->height);
}
weston_wm_window_get_child_position(window, &x, &y);
values[i++] = x;
values[i++] = y;
values[i++] = window->width;
values[i++] = window->height;
values[i++] = 0;
mask = XCB_CONFIG_WINDOW_X | XCB_CONFIG_WINDOW_Y |
XCB_CONFIG_WINDOW_WIDTH | XCB_CONFIG_WINDOW_HEIGHT |
XCB_CONFIG_WINDOW_BORDER_WIDTH;
if (configure_request->value_mask & XCB_CONFIG_WINDOW_SIBLING) {
values[i++] = configure_request->sibling;
mask |= XCB_CONFIG_WINDOW_SIBLING;
}
if (configure_request->value_mask & XCB_CONFIG_WINDOW_STACK_MODE) {
values[i++] = configure_request->stack_mode;
mask |= XCB_CONFIG_WINDOW_STACK_MODE;
}
weston_wm_configure_window(wm, window->id, mask, values);
weston_wm_window_configure_frame(window);
weston_wm_window_schedule_repaint(window);
}
static int
our_resource(struct weston_wm *wm, uint32_t id)
{
const xcb_setup_t *setup;
setup = xcb_get_setup(wm->conn);
return (id & ~setup->resource_id_mask) == setup->resource_id_base;
}
static void
weston_wm_handle_configure_notify(struct weston_wm *wm, xcb_generic_event_t *event)
{
xcb_configure_notify_event_t *configure_notify =
(xcb_configure_notify_event_t *) event;
const struct weston_desktop_xwayland_interface *xwayland_api =
wm->server->compositor->xwayland_interface;
struct weston_wm_window *window;
wm_printf(wm, "XCB_CONFIGURE_NOTIFY (window %d) %d,%d @ %dx%d%s\n",
configure_notify->window,
configure_notify->x, configure_notify->y,
configure_notify->width, configure_notify->height,
configure_notify->override_redirect ? ", override" : "");
if (!wm_lookup_window(wm, configure_notify->window, &window))
return;
window->x = configure_notify->x;
window->y = configure_notify->y;
window->pos_dirty = false;
if (window->override_redirect) {
window->width = configure_notify->width;
window->height = configure_notify->height;
if (window->frame)
frame_resize_inside(window->frame,
window->width, window->height);
/* We should check if shsurf has been created because sometimes
* there are races
* (configure_notify is sent before xserver_map_surface) */
if (window->shsurf)
xwayland_api->set_xwayland(window->shsurf,
window->x, window->y);
}
}
static void
weston_wm_kill_client(struct wl_listener *listener, void *data)
{
struct weston_surface *surface = data;
struct weston_wm_window *window = get_wm_window(surface);
if (!window)
return;
if (window->pid > 0)
kill(window->pid, SIGKILL);
}
static void
weston_wm_create_surface(struct wl_listener *listener, void *data)
{
struct weston_surface *surface = data;
struct weston_wm *wm =
container_of(listener,
struct weston_wm, create_surface_listener);
struct weston_wm_window *window;
if (wl_resource_get_client(surface->resource) != wm->server->client)
return;
wm_printf(wm, "XWM: create weston_surface %p\n", surface);
wl_list_for_each(window, &wm->unpaired_window_list, link)
if (window->surface_id ==
wl_resource_get_id(surface->resource)) {
xserver_map_shell_surface(window, surface);
window->surface_id = 0;
wl_list_remove(&window->link);
break;
}
}
static void
weston_wm_send_focus_window(struct weston_wm *wm,
struct weston_wm_window *window)
{
xcb_client_message_event_t client_message;
if (window) {
uint32_t values[1];
if (window->override_redirect)
return;
client_message.response_type = XCB_CLIENT_MESSAGE;
client_message.format = 32;
client_message.window = window->id;
client_message.type = wm->atom.wm_protocols;
client_message.data.data32[0] = wm->atom.wm_take_focus;
client_message.data.data32[1] = XCB_TIME_CURRENT_TIME;
xcb_send_event(wm->conn, 0, window->id,
XCB_EVENT_MASK_SUBSTRUCTURE_REDIRECT,
(char *) &client_message);
xcb_set_input_focus (wm->conn, XCB_INPUT_FOCUS_POINTER_ROOT,
window->id, XCB_TIME_CURRENT_TIME);
values[0] = XCB_STACK_MODE_ABOVE;
weston_wm_configure_window(wm, window->frame_id,
XCB_CONFIG_WINDOW_STACK_MODE,
values);
} else {
xcb_set_input_focus (wm->conn,
XCB_INPUT_FOCUS_POINTER_ROOT,
XCB_NONE,
XCB_TIME_CURRENT_TIME);
}
}
static void
weston_wm_window_activate(struct wl_listener *listener, void *data)
{
struct weston_surface_activation_data *activation_data = data;
struct weston_surface *surface = activation_data->surface;
struct weston_wm_window *window = NULL;
struct weston_wm *wm =
container_of(listener, struct weston_wm, activate_listener);
if (surface) {
window = get_wm_window(surface);
}
if (window) {
weston_wm_set_net_active_window(wm, window->id);
} else {
weston_wm_set_net_active_window(wm, XCB_WINDOW_NONE);
}
weston_wm_send_focus_window(wm, window);
if (wm->focus_window) {
if (wm->focus_window->frame)
frame_unset_flag(wm->focus_window->frame, FRAME_FLAG_ACTIVE);
weston_wm_window_schedule_repaint(wm->focus_window);
}
wm->focus_window = window;
if (wm->focus_window) {
if (wm->focus_window->frame)
frame_set_flag(wm->focus_window->frame, FRAME_FLAG_ACTIVE);
weston_wm_window_schedule_repaint(wm->focus_window);
}
xcb_flush(wm->conn);
}
/** Control Xwayland wl_surface.commit behaviour
*
* This function sets the "_XWAYLAND_ALLOW_COMMITS" property of the frame window
* (not the content window!) to \p allow.
*
* If the property is set to \c true, Xwayland will commit whenever it likes.
* If the property is set to \c false, Xwayland will not commit.
* If the property is not set at all, Xwayland assumes it is \c true.
*
* \param window The XWM window to control.
* \param allow Whether Xwayland is allowed to wl_surface.commit for the window.
*/
static void
weston_wm_window_set_allow_commits(struct weston_wm_window *window, bool allow)
{
struct weston_wm *wm = window->wm;
uint32_t property[1];
assert(window->frame_id != XCB_WINDOW_NONE);
wm_printf(wm, "XWM: window %d set _XWAYLAND_ALLOW_COMMITS = %s\n",
window->id, allow ? "true" : "false");
property[0] = allow ? 1 : 0;
xcb_change_property(wm->conn,
XCB_PROP_MODE_REPLACE,
window->frame_id,
wm->atom.allow_commits,
XCB_ATOM_CARDINAL,
32, /* format */
1, property);
xcb_flush(wm->conn);
}
#define ICCCM_WITHDRAWN_STATE 0
#define ICCCM_NORMAL_STATE 1
#define ICCCM_ICONIC_STATE 3
static void
weston_wm_window_set_wm_state(struct weston_wm_window *window, int32_t state)
{
struct weston_wm *wm = window->wm;
uint32_t property[2];
property[0] = state;
property[1] = XCB_WINDOW_NONE;
xcb_change_property(wm->conn,
XCB_PROP_MODE_REPLACE,
window->id,
wm->atom.wm_state,
wm->atom.wm_state,
32, /* format */
2, property);
}
static void
weston_wm_window_set_net_wm_state(struct weston_wm_window *window)
{
struct weston_wm *wm = window->wm;
uint32_t property[3];
int i;
i = 0;
if (window->fullscreen)
property[i++] = wm->atom.net_wm_state_fullscreen;
if (window->maximized_vert)
property[i++] = wm->atom.net_wm_state_maximized_vert;
if (window->maximized_horz)
property[i++] = wm->atom.net_wm_state_maximized_horz;
xcb_change_property(wm->conn,
XCB_PROP_MODE_REPLACE,
window->id,
wm->atom.net_wm_state,
XCB_ATOM_ATOM,
32, /* format */
i, property);
}
static void
weston_wm_window_create_frame(struct weston_wm_window *window)
{
struct weston_wm *wm = window->wm;
uint32_t values[3];
int x, y, width, height;
int buttons = FRAME_BUTTON_CLOSE;
if (window->decorate & MWM_DECOR_MAXIMIZE)
buttons |= FRAME_BUTTON_MAXIMIZE;
window->frame = frame_create(window->wm->theme,
window->width, window->height,
buttons, window->name, NULL);
if (!window->frame)
return;
frame_resize_inside(window->frame, window->width, window->height);
weston_wm_window_get_frame_size(window, &width, &height);
weston_wm_window_get_child_position(window, &x, &y);
values[0] = wm->screen->black_pixel;
values[1] =
XCB_EVENT_MASK_KEY_PRESS |
XCB_EVENT_MASK_KEY_RELEASE |
XCB_EVENT_MASK_BUTTON_PRESS |
XCB_EVENT_MASK_BUTTON_RELEASE |
XCB_EVENT_MASK_POINTER_MOTION |
XCB_EVENT_MASK_ENTER_WINDOW |
XCB_EVENT_MASK_LEAVE_WINDOW |
XCB_EVENT_MASK_SUBSTRUCTURE_NOTIFY |
XCB_EVENT_MASK_SUBSTRUCTURE_REDIRECT;
values[2] = wm->colormap;
window->frame_id = xcb_generate_id(wm->conn);
xcb_create_window(wm->conn,
32,
window->frame_id,
wm->screen->root,
0, 0,
width, height,
0,
XCB_WINDOW_CLASS_INPUT_OUTPUT,
wm->visual_id,
XCB_CW_BORDER_PIXEL |
XCB_CW_EVENT_MASK |
XCB_CW_COLORMAP, values);
xcb_reparent_window(wm->conn, window->id, window->frame_id, x, y);
values[0] = 0;
weston_wm_configure_window(wm, window->id,
XCB_CONFIG_WINDOW_BORDER_WIDTH, values);
window->cairo_surface =
cairo_xcb_surface_create_with_xrender_format(wm->conn,
wm->screen,
window->frame_id,
&wm->format_rgba,
width, height);
hash_table_insert(wm->window_hash, window->frame_id, window);
}
/*
* Sets the _NET_WM_DESKTOP property for the window to 'desktop'.
* Passing a <0 desktop value deletes the property.
*/
static void
weston_wm_window_set_virtual_desktop(struct weston_wm_window *window,
int desktop)
{
if (desktop >= 0) {
xcb_change_property(window->wm->conn,
XCB_PROP_MODE_REPLACE,
window->id,
window->wm->atom.net_wm_desktop,
XCB_ATOM_CARDINAL,
32, /* format */
1, &desktop);
} else {
xcb_delete_property(window->wm->conn,
window->id,
window->wm->atom.net_wm_desktop);
}
}
static void
weston_wm_handle_map_request(struct weston_wm *wm, xcb_generic_event_t *event)
{
xcb_map_request_event_t *map_request =
(xcb_map_request_event_t *) event;
struct weston_wm_window *window;
struct weston_output *output;
if (our_resource(wm, map_request->window)) {
wm_printf(wm, "XCB_MAP_REQUEST (window %d, ours)\n",
map_request->window);
return;
}
if (!wm_lookup_window(wm, map_request->window, &window))
return;
weston_wm_window_read_properties(window);
/* For a new Window, MapRequest happens before the Window is realized
* in Xwayland. We do the real xcb_map_window() here as a response to
* MapRequest. The Window will get realized (wl_surface created in
* Wayland and WL_SURFACE_ID sent in X11) when it has been mapped for
* real.
*
* MapRequest only happens for (X11) unmapped Windows. On UnmapNotify,
* we reset shsurf to NULL, so even if X11 connection races far ahead
* of the Wayland connection and the X11 client is repeatedly mapping
* and unmapping, we will never have shsurf set on MapRequest.
*/
assert(!window->shsurf);
window->map_request_x = window->x;
window->map_request_y = window->y;
if (window->frame_id == XCB_WINDOW_NONE)
weston_wm_window_create_frame(window); /* sets frame_id */
assert(window->frame_id != XCB_WINDOW_NONE);
wm_printf(wm, "XCB_MAP_REQUEST (window %d, %p, frame %d, %dx%d @ %d,%d)\n",
window->id, window, window->frame_id,
window->width, window->height,
window->map_request_x, window->map_request_y);
weston_wm_window_set_allow_commits(window, false);
weston_wm_window_set_wm_state(window, ICCCM_NORMAL_STATE);
weston_wm_window_set_net_wm_state(window);
weston_wm_window_set_virtual_desktop(window, 0);
if (legacy_fullscreen(wm, window, &output)) {
window->fullscreen = 1;
weston_output_weak_ref_set(&window->legacy_fullscreen_output,
output);
}
xcb_map_window(wm->conn, map_request->window);
xcb_map_window(wm->conn, window->frame_id);
/* Mapped in the X server, we can draw immediately.
* Cannot set pending state though, no weston_surface until
* xserver_map_shell_surface() time. */
weston_wm_window_schedule_repaint(window);
}
static void
weston_wm_handle_map_notify(struct weston_wm *wm, xcb_generic_event_t *event)
{
xcb_map_notify_event_t *map_notify = (xcb_map_notify_event_t *) event;
if (our_resource(wm, map_notify->window)) {
wm_printf(wm, "XCB_MAP_NOTIFY (window %d, ours)\n",
map_notify->window);
return;
}
wm_printf(wm, "XCB_MAP_NOTIFY (window %d%s)\n", map_notify->window,
map_notify->override_redirect ? ", override" : "");
}
static void
weston_wm_handle_unmap_notify(struct weston_wm *wm, xcb_generic_event_t *event)
{
xcb_unmap_notify_event_t *unmap_notify =
(xcb_unmap_notify_event_t *) event;
struct weston_wm_window *window;
wm_printf(wm, "XCB_UNMAP_NOTIFY (window %d, event %d%s)\n",
unmap_notify->window,
unmap_notify->event,
our_resource(wm, unmap_notify->window) ? ", ours" : "");
if (our_resource(wm, unmap_notify->window))
return;
if (unmap_notify->response_type & SEND_EVENT_MASK)
/* We just ignore the ICCCM 4.1.4 synthetic unmap notify
* as it may come in after we've destroyed the window. */
return;
if (!wm_lookup_window(wm, unmap_notify->window, &window))
return;
if (window->surface_id) {
/* Make sure we're not on the unpaired surface list or we
* could be assigned a surface during surface creation that
* was mapped before this unmap request.
*/
wl_list_remove(&window->link);
window->surface_id = 0;
}
if (wm->focus_window == window)
wm->focus_window = NULL;
if (window->surface)
wl_list_remove(&window->surface_destroy_listener.link);
window->surface = NULL;
window->shsurf = NULL;
weston_wm_window_set_wm_state(window, ICCCM_WITHDRAWN_STATE);
weston_wm_window_set_virtual_desktop(window, -1);
xcb_unmap_window(wm->conn, window->frame_id);
}
static void
weston_wm_window_draw_decoration(struct weston_wm_window *window)
{
cairo_t *cr;
int width, height;
const char *how;
weston_wm_window_get_frame_size(window, &width, &height);
cairo_xcb_surface_set_size(window->cairo_surface, width, height);
cr = cairo_create(window->cairo_surface);
if (window->fullscreen) {
how = "fullscreen";
/* nothing */
} else if (window->decorate) {
how = "decorate";
frame_set_title(window->frame, window->name);
frame_repaint(window->frame, cr);
} else {
how = "shadow";
cairo_set_operator(cr, CAIRO_OPERATOR_SOURCE);
cairo_set_source_rgba(cr, 0, 0, 0, 0);
cairo_paint(cr);
render_shadow(cr, window->wm->theme->shadow,
2, 2, width + 8, height + 8, 64, 64);
}
wm_printf(window->wm, "XWM: draw decoration, win %d, %s\n",
window->id, how);
cairo_destroy(cr);
cairo_surface_flush(window->cairo_surface);
xcb_flush(window->wm->conn);
}
static void
weston_wm_window_set_pending_state(struct weston_wm_window *window)
{
int x, y, width, height;
int32_t input_x, input_y, input_w, input_h;
const struct weston_desktop_xwayland_interface *xwayland_interface =
window->wm->server->compositor->xwayland_interface;
if (!window->surface)
return;
weston_wm_window_get_frame_size(window, &width, &height);
weston_wm_window_get_child_position(window, &x, &y);
pixman_region32_fini(&window->surface->pending.opaque);
if (window->has_alpha) {
pixman_region32_init(&window->surface->pending.opaque);
} else {
/* We leave an extra pixel around the X window area to
* make sure we don't sample from the undefined alpha
* channel when filtering. */
pixman_region32_init_rect(&window->surface->pending.opaque,
x - 1, y - 1,
window->width + 2,
window->height + 2);
}
if (window->decorate && !window->fullscreen) {
frame_input_rect(window->frame, &input_x, &input_y,
&input_w, &input_h);
} else {
input_x = x;
input_y = y;
input_w = width;
input_h = height;
}
wm_printf(window->wm, "XWM: win %d geometry: %d,%d %dx%d\n",
window->id, input_x, input_y, input_w, input_h);
pixman_region32_fini(&window->surface->pending.input);
pixman_region32_init_rect(&window->surface->pending.input,
input_x, input_y, input_w, input_h);
xwayland_interface->set_window_geometry(window->shsurf,
input_x, input_y,
input_w, input_h);
if (window->name)
xwayland_interface->set_title(window->shsurf, window->name);
if (window->pid > 0)
xwayland_interface->set_pid(window->shsurf, window->pid);
}
static void
weston_wm_window_do_repaint(void *data)
{
struct weston_wm_window *window = data;
window->repaint_source = NULL;
weston_wm_window_set_allow_commits(window, false);
weston_wm_window_read_properties(window);
weston_wm_window_draw_decoration(window);
weston_wm_window_set_pending_state(window);
weston_wm_window_set_allow_commits(window, true);
}
static void
weston_wm_window_set_pending_state_OR(struct weston_wm_window *window)
{
int width, height;
/* for override-redirect windows */
assert(window->frame_id == XCB_WINDOW_NONE);
if (!window->surface)
return;
weston_wm_window_get_frame_size(window, &width, &height);
pixman_region32_fini(&window->surface->pending.opaque);
if (window->has_alpha) {
pixman_region32_init(&window->surface->pending.opaque);
} else {
pixman_region32_init_rect(&window->surface->pending.opaque, 0, 0,
width, height);
}
}
static void
weston_wm_window_schedule_repaint(struct weston_wm_window *window)
{
struct weston_wm *wm = window->wm;
if (window->frame_id == XCB_WINDOW_NONE) {
/* Override-redirect windows go through here, but we
* cannot assert(window->override_redirect); because
* we do not deal with changing OR flag yet.
* XXX: handle OR flag changes in message handlers
*/
weston_wm_window_set_pending_state_OR(window);
return;
}
if (window->repaint_source)
return;
wm_printf(wm, "XWM: schedule repaint, win %d\n", window->id);
window->repaint_source =
wl_event_loop_add_idle(wm->server->loop,
weston_wm_window_do_repaint, window);
}
static void
weston_wm_handle_property_notify(struct weston_wm *wm, xcb_generic_event_t *event)
{
xcb_property_notify_event_t *property_notify =
(xcb_property_notify_event_t *) event;
struct weston_wm_window *window;
FILE *fp = NULL;
char *logstr;
size_t logsize;
char timestr[128];
if (!wm_lookup_window(wm, property_notify->window, &window))
return;
window->properties_dirty = 1;
if (wm_debug_is_enabled(wm))
fp = open_memstream(&logstr, &logsize);
if (fp) {
fprintf(fp, "%s XCB_PROPERTY_NOTIFY: window %d, ",
weston_log_scope_timestamp(wm->server->wm_debug,
timestr, sizeof timestr),
property_notify->window);
if (property_notify->state == XCB_PROPERTY_DELETE)
fprintf(fp, "deleted %s\n",
get_atom_name(wm->conn, property_notify->atom));
else
read_and_dump_property(fp, wm, property_notify->window,
property_notify->atom);
if (fclose(fp) == 0)
weston_log_scope_write(wm->server->wm_debug,
logstr, logsize);
free(logstr);
} else {
/* read_and_dump_property() is a X11 roundtrip.
* Mimic it to maintain ordering semantics between debug
* and non-debug paths.
*/
get_atom_name(wm->conn, property_notify->atom);
}
if (property_notify->atom == wm->atom.net_wm_name ||
property_notify->atom == XCB_ATOM_WM_NAME)
weston_wm_window_schedule_repaint(window);
}
static void
weston_wm_window_create(struct weston_wm *wm,
xcb_window_t id, int width, int height, int x, int y, int override)
{
struct weston_wm_window *window;
uint32_t values[1];
xcb_get_geometry_cookie_t geometry_cookie;
xcb_get_geometry_reply_t *geometry_reply;
window = zalloc(sizeof *window);
if (window == NULL) {
wm_printf(wm, "failed to allocate window\n");
return;
}
geometry_cookie = xcb_get_geometry(wm->conn, id);
values[0] = XCB_EVENT_MASK_PROPERTY_CHANGE |
XCB_EVENT_MASK_FOCUS_CHANGE;
xcb_change_window_attributes(wm->conn, id, XCB_CW_EVENT_MASK, values);
window->wm = wm;
window->id = id;
window->properties_dirty = 1;
window->override_redirect = override;
window->width = width;
window->height = height;
/* Completely arbitrary defaults in case something starts
* maximized and we unmaximize it later - at which point 0 x 0
* would not be the most useful size.
*/
window->saved_width = 512;
window->saved_height = 512;
window->x = x;
window->y = y;
window->pos_dirty = false;
window->map_request_x = INT_MIN; /* out of range for valid positions */
window->map_request_y = INT_MIN; /* out of range for valid positions */
weston_output_weak_ref_init(&window->legacy_fullscreen_output);
geometry_reply = xcb_get_geometry_reply(wm->conn, geometry_cookie, NULL);
/* technically we should use XRender and check the visual format's
alpha_mask, but checking depth is simpler and works in all known cases */
if (geometry_reply != NULL)
window->has_alpha = geometry_reply->depth == 32;
free(geometry_reply);
hash_table_insert(wm->window_hash, id, window);
}
static void
weston_wm_window_destroy(struct weston_wm_window *window)
{
struct weston_wm *wm = window->wm;
weston_output_weak_ref_clear(&window->legacy_fullscreen_output);
if (window->configure_source)
wl_event_source_remove(window->configure_source);
if (window->repaint_source)
wl_event_source_remove(window->repaint_source);
if (window->cairo_surface)
cairo_surface_destroy(window->cairo_surface);
if (window->frame_id) {
xcb_reparent_window(wm->conn, window->id, wm->wm_window, 0, 0);
xcb_destroy_window(wm->conn, window->frame_id);
weston_wm_window_set_wm_state(window, ICCCM_WITHDRAWN_STATE);
weston_wm_window_set_virtual_desktop(window, -1);
hash_table_remove(wm->window_hash, window->frame_id);
window->frame_id = XCB_WINDOW_NONE;
}
if (window->frame)
frame_destroy(window->frame);
if (window->surface_id)
wl_list_remove(&window->link);
if (window->surface)
wl_list_remove(&window->surface_destroy_listener.link);
free(window->class);
free(window->name);
free(window->machine);
hash_table_remove(window->wm->window_hash, window->id);
free(window);
}
static void
weston_wm_handle_create_notify(struct weston_wm *wm, xcb_generic_event_t *event)
{
xcb_create_notify_event_t *create_notify =
(xcb_create_notify_event_t *) event;
wm_printf(wm, "XCB_CREATE_NOTIFY (window %d, at (%d, %d), width %d, height %d%s%s)\n",
create_notify->window,
create_notify->x, create_notify->y,
create_notify->width, create_notify->height,
create_notify->override_redirect ? ", override" : "",
our_resource(wm, create_notify->window) ? ", ours" : "");
if (our_resource(wm, create_notify->window))
return;
weston_wm_window_create(wm, create_notify->window,
create_notify->width, create_notify->height,
create_notify->x, create_notify->y,
create_notify->override_redirect);
}
static void
weston_wm_handle_destroy_notify(struct weston_wm *wm, xcb_generic_event_t *event)
{
xcb_destroy_notify_event_t *destroy_notify =
(xcb_destroy_notify_event_t *) event;
struct weston_wm_window *window;
wm_printf(wm, "XCB_DESTROY_NOTIFY, win %d, event %d%s\n",
destroy_notify->window,
destroy_notify->event,
our_resource(wm, destroy_notify->window) ? ", ours" : "");
if (our_resource(wm, destroy_notify->window))
return;
if (!wm_lookup_window(wm, destroy_notify->window, &window))
return;
weston_wm_window_destroy(window);
}
static void
weston_wm_handle_reparent_notify(struct weston_wm *wm, xcb_generic_event_t *event)
{
xcb_reparent_notify_event_t *reparent_notify =
(xcb_reparent_notify_event_t *) event;
struct weston_wm_window *window;
wm_printf(wm, "XCB_REPARENT_NOTIFY (window %d, parent %d, event %d%s)\n",
reparent_notify->window,
reparent_notify->parent,
reparent_notify->event,
reparent_notify->override_redirect ? ", override" : "");
if (reparent_notify->parent == wm->screen->root) {
weston_wm_window_create(wm, reparent_notify->window, 10, 10,
reparent_notify->x, reparent_notify->y,
reparent_notify->override_redirect);
} else if (!our_resource(wm, reparent_notify->parent)) {
if (!wm_lookup_window(wm, reparent_notify->window, &window))
return;
weston_wm_window_destroy(window);
}
}
struct weston_seat *
weston_wm_pick_seat(struct weston_wm *wm)
{
struct wl_list *seats = wm->server->compositor->seat_list.next;
if (wl_list_empty(seats))
return NULL;
return container_of(seats, struct weston_seat, link);
}
static struct weston_seat *
weston_wm_pick_seat_for_window(struct weston_wm_window *window)
{
struct weston_wm *wm = window->wm;
struct weston_seat *seat, *s;
seat = NULL;
wl_list_for_each(s, &wm->server->compositor->seat_list, link) {
struct weston_pointer *pointer = weston_seat_get_pointer(s);
struct weston_pointer *old_pointer =
weston_seat_get_pointer(seat);
if (pointer && pointer->focus &&
pointer->focus->surface == window->surface &&
pointer->button_count > 0 &&
(!seat ||
pointer->grab_serial -
old_pointer->grab_serial < (1 << 30)))
seat = s;
}
return seat;
}
static void
weston_wm_window_handle_moveresize(struct weston_wm_window *window,
xcb_client_message_event_t *client_message)
{
static const int map[] = {
THEME_LOCATION_RESIZING_TOP_LEFT,
THEME_LOCATION_RESIZING_TOP,
THEME_LOCATION_RESIZING_TOP_RIGHT,
THEME_LOCATION_RESIZING_RIGHT,
THEME_LOCATION_RESIZING_BOTTOM_RIGHT,
THEME_LOCATION_RESIZING_BOTTOM,
THEME_LOCATION_RESIZING_BOTTOM_LEFT,
THEME_LOCATION_RESIZING_LEFT
};
struct weston_wm *wm = window->wm;
struct weston_seat *seat = weston_wm_pick_seat_for_window(window);
struct weston_pointer *pointer = weston_seat_get_pointer(seat);
int detail;
const struct weston_desktop_xwayland_interface *xwayland_interface =
wm->server->compositor->xwayland_interface;
if (!pointer || pointer->button_count != 1
|| !pointer->focus
|| pointer->focus->surface != window->surface)
return;
detail = client_message->data.data32[2];
switch (detail) {
case _NET_WM_MOVERESIZE_MOVE:
xwayland_interface->move(window->shsurf, pointer);
break;
case _NET_WM_MOVERESIZE_SIZE_TOPLEFT:
case _NET_WM_MOVERESIZE_SIZE_TOP:
case _NET_WM_MOVERESIZE_SIZE_TOPRIGHT:
case _NET_WM_MOVERESIZE_SIZE_RIGHT:
case _NET_WM_MOVERESIZE_SIZE_BOTTOMRIGHT:
case _NET_WM_MOVERESIZE_SIZE_BOTTOM:
case _NET_WM_MOVERESIZE_SIZE_BOTTOMLEFT:
case _NET_WM_MOVERESIZE_SIZE_LEFT:
xwayland_interface->resize(window->shsurf, pointer, map[detail]);
break;
case _NET_WM_MOVERESIZE_CANCEL:
break;
}
}
#define _NET_WM_STATE_REMOVE 0
#define _NET_WM_STATE_ADD 1
#define _NET_WM_STATE_TOGGLE 2
static int
update_state(int action, int *state)
{
int new_state, changed;
switch (action) {
case _NET_WM_STATE_REMOVE:
new_state = 0;
break;
case _NET_WM_STATE_ADD:
new_state = 1;
break;
case _NET_WM_STATE_TOGGLE:
new_state = !*state;
break;
default:
return 0;
}
changed = (*state != new_state);
*state = new_state;
return changed;
}
static void
weston_wm_window_configure(void *data);
static void
weston_wm_window_set_toplevel(struct weston_wm_window *window)
{
const struct weston_desktop_xwayland_interface *xwayland_interface =
window->wm->server->compositor->xwayland_interface;
xwayland_interface->set_toplevel(window->shsurf);
window->width = window->saved_width;
window->height = window->saved_height;
if (window->frame) {
frame_unset_flag(window->frame, FRAME_FLAG_MAXIMIZED);
frame_resize_inside(window->frame,
window->width,
window->height);
}
weston_wm_window_configure(window);
}
static inline bool
weston_wm_window_is_maximized(struct weston_wm_window *window)
{
return window->maximized_horz && window->maximized_vert;
}
static void
weston_wm_window_handle_state(struct weston_wm_window *window,
xcb_client_message_event_t *client_message)
{
struct weston_wm *wm = window->wm;
const struct weston_desktop_xwayland_interface *xwayland_interface =
wm->server->compositor->xwayland_interface;
uint32_t action, property1, property2;
int maximized = weston_wm_window_is_maximized(window);
action = client_message->data.data32[0];
property1 = client_message->data.data32[1];
property2 = client_message->data.data32[2];
if ((property1 == wm->atom.net_wm_state_fullscreen ||
property2 == wm->atom.net_wm_state_fullscreen) &&
update_state(action, &window->fullscreen)) {
weston_wm_window_set_net_wm_state(window);
if (window->fullscreen) {
window->saved_width = window->width;
window->saved_height = window->height;
if (window->shsurf)
xwayland_interface->set_fullscreen(window->shsurf,
NULL);
} else {
if (window->shsurf)
weston_wm_window_set_toplevel(window);
}
} else {
if ((property1 == wm->atom.net_wm_state_maximized_vert ||
property2 == wm->atom.net_wm_state_maximized_vert) &&
update_state(action, &window->maximized_vert))
weston_wm_window_set_net_wm_state(window);
if ((property1 == wm->atom.net_wm_state_maximized_horz ||
property2 == wm->atom.net_wm_state_maximized_horz) &&
update_state(action, &window->maximized_horz))
weston_wm_window_set_net_wm_state(window);
if (maximized != weston_wm_window_is_maximized(window)) {
if (weston_wm_window_is_maximized(window)) {
window->saved_width = window->width;
window->saved_height = window->height;
if (window->shsurf)
xwayland_interface->set_maximized(window->shsurf);
} else if (window->shsurf) {
weston_wm_window_set_toplevel(window);
}
}
}
}
static void
surface_destroy(struct wl_listener *listener, void *data)
{
struct weston_wm_window *window =
container_of(listener,
struct weston_wm_window, surface_destroy_listener);
wm_printf(window->wm, "surface for xid %d destroyed\n", window->id);
/* This should have been freed by the shell.
* Don't try to use it later. */
window->shsurf = NULL;
window->surface = NULL;
}
static void
weston_wm_window_handle_surface_id(struct weston_wm_window *window,
xcb_client_message_event_t *client_message)
{
struct weston_wm *wm = window->wm;
struct wl_resource *resource;
if (window->surface_id != 0) {
wm_printf(wm, "already have surface id for window %d\n",
window->id);
return;
}
/* Xwayland will send the wayland requests to create the
* wl_surface before sending this client message. Even so, we
* can end up handling the X event before the wayland requests
* and thus when we try to look up the surface ID, the surface
* hasn't been created yet. In that case put the window on
* the unpaired window list and continue when the surface gets
* created. */
uint32_t id = client_message->data.data32[0];
resource = wl_client_get_object(wm->server->client, id);
if (resource) {
window->surface_id = 0;
xserver_map_shell_surface(window,
wl_resource_get_user_data(resource));
}
else {
window->surface_id = id;
wl_list_insert(&wm->unpaired_window_list, &window->link);
}
}
static void
weston_wm_handle_client_message(struct weston_wm *wm,
xcb_generic_event_t *event)
{
xcb_client_message_event_t *client_message =
(xcb_client_message_event_t *) event;
struct weston_wm_window *window;
wm_printf(wm, "XCB_CLIENT_MESSAGE (%s %d %d %d %d %d win %d)\n",
get_atom_name(wm->conn, client_message->type),
client_message->data.data32[0],
client_message->data.data32[1],
client_message->data.data32[2],
client_message->data.data32[3],
client_message->data.data32[4],
client_message->window);
/* The window may get created and destroyed before we actually
* handle the message. If it doesn't exist, bail.
*/
if (!wm_lookup_window(wm, client_message->window, &window))
return;
if (client_message->type == wm->atom.net_wm_moveresize)
weston_wm_window_handle_moveresize(window, client_message);
else if (client_message->type == wm->atom.net_wm_state)
weston_wm_window_handle_state(window, client_message);
else if (client_message->type == wm->atom.wl_surface_id)
weston_wm_window_handle_surface_id(window, client_message);
}
enum cursor_type {
XWM_CURSOR_TOP,
XWM_CURSOR_BOTTOM,
XWM_CURSOR_LEFT,
XWM_CURSOR_RIGHT,
XWM_CURSOR_TOP_LEFT,
XWM_CURSOR_TOP_RIGHT,
XWM_CURSOR_BOTTOM_LEFT,
XWM_CURSOR_BOTTOM_RIGHT,
XWM_CURSOR_LEFT_PTR,
};
/*
* The following correspondences between file names and cursors was copied
* from: https://bugs.kde.org/attachment.cgi?id=67313
*/
static const char *bottom_left_corners[] = {
"bottom_left_corner",
"sw-resize",
"size_bdiag"
};
static const char *bottom_right_corners[] = {
"bottom_right_corner",
"se-resize",
"size_fdiag"
};
static const char *bottom_sides[] = {
"bottom_side",
"s-resize",
"size_ver"
};
static const char *left_ptrs[] = {
"left_ptr",
"default",
"top_left_arrow",
"left-arrow"
};
static const char *left_sides[] = {
"left_side",
"w-resize",
"size_hor"
};
static const char *right_sides[] = {
"right_side",
"e-resize",
"size_hor"
};
static const char *top_left_corners[] = {
"top_left_corner",
"nw-resize",
"size_fdiag"
};
static const char *top_right_corners[] = {
"top_right_corner",
"ne-resize",
"size_bdiag"
};
static const char *top_sides[] = {
"top_side",
"n-resize",
"size_ver"
};
struct cursor_alternatives {
const char **names;
size_t count;
};
static const struct cursor_alternatives cursors[] = {
{top_sides, ARRAY_LENGTH(top_sides)},
{bottom_sides, ARRAY_LENGTH(bottom_sides)},
{left_sides, ARRAY_LENGTH(left_sides)},
{right_sides, ARRAY_LENGTH(right_sides)},
{top_left_corners, ARRAY_LENGTH(top_left_corners)},
{top_right_corners, ARRAY_LENGTH(top_right_corners)},
{bottom_left_corners, ARRAY_LENGTH(bottom_left_corners)},
{bottom_right_corners, ARRAY_LENGTH(bottom_right_corners)},
{left_ptrs, ARRAY_LENGTH(left_ptrs)},
};
static void
weston_wm_create_cursors(struct weston_wm *wm)
{
const char *name;
int i, count = ARRAY_LENGTH(cursors);
size_t j;
wm->cursors = malloc(count * sizeof(xcb_cursor_t));
for (i = 0; i < count; i++) {
for (j = 0; j < cursors[i].count; j++) {
name = cursors[i].names[j];
wm->cursors[i] =
xcb_cursor_library_load_cursor(wm, name);
if (wm->cursors[i] != (xcb_cursor_t)-1)
break;
}
}
wm->last_cursor = -1;
}
static void
weston_wm_destroy_cursors(struct weston_wm *wm)
{
uint8_t i;
for (i = 0; i < ARRAY_LENGTH(cursors); i++)
xcb_free_cursor(wm->conn, wm->cursors[i]);
free(wm->cursors);
}
static int
get_cursor_for_location(enum theme_location location)
{
switch (location) {
case THEME_LOCATION_RESIZING_TOP:
return XWM_CURSOR_TOP;
case THEME_LOCATION_RESIZING_BOTTOM:
return XWM_CURSOR_BOTTOM;
case THEME_LOCATION_RESIZING_LEFT:
return XWM_CURSOR_LEFT;
case THEME_LOCATION_RESIZING_RIGHT:
return XWM_CURSOR_RIGHT;
case THEME_LOCATION_RESIZING_TOP_LEFT:
return XWM_CURSOR_TOP_LEFT;
case THEME_LOCATION_RESIZING_TOP_RIGHT:
return XWM_CURSOR_TOP_RIGHT;
case THEME_LOCATION_RESIZING_BOTTOM_LEFT:
return XWM_CURSOR_BOTTOM_LEFT;
case THEME_LOCATION_RESIZING_BOTTOM_RIGHT:
return XWM_CURSOR_BOTTOM_RIGHT;
case THEME_LOCATION_EXTERIOR:
case THEME_LOCATION_TITLEBAR:
default:
return XWM_CURSOR_LEFT_PTR;
}
}
static void
weston_wm_window_set_cursor(struct weston_wm *wm, xcb_window_t window_id,
int cursor)
{
uint32_t cursor_value_list;
if (wm->last_cursor == cursor)
return;
wm->last_cursor = cursor;
cursor_value_list = wm->cursors[cursor];
xcb_change_window_attributes (wm->conn, window_id,
XCB_CW_CURSOR, &cursor_value_list);
xcb_flush(wm->conn);
}
static void
weston_wm_window_close(struct weston_wm_window *window, xcb_timestamp_t time)
{
xcb_client_message_event_t client_message;
if (window->delete_window) {
client_message.response_type = XCB_CLIENT_MESSAGE;
client_message.format = 32;
client_message.window = window->id;
client_message.type = window->wm->atom.wm_protocols;
client_message.data.data32[0] =
window->wm->atom.wm_delete_window;
client_message.data.data32[1] = time;
xcb_send_event(window->wm->conn, 0, window->id,
XCB_EVENT_MASK_NO_EVENT,
(char *) &client_message);
} else {
xcb_kill_client(window->wm->conn, window->id);
}
}
#define DOUBLE_CLICK_PERIOD 250
static void
weston_wm_handle_button(struct weston_wm *wm, xcb_generic_event_t *event)
{
xcb_button_press_event_t *button = (xcb_button_press_event_t *) event;
const struct weston_desktop_xwayland_interface *xwayland_interface =
wm->server->compositor->xwayland_interface;
struct weston_seat *seat;
struct weston_pointer *pointer;
struct weston_wm_window *window;
enum theme_location location;
enum wl_pointer_button_state button_state;
uint32_t button_id;
uint32_t double_click = 0;
wm_printf(wm, "XCB_BUTTON_%s (detail %d)\n",
button->response_type == XCB_BUTTON_PRESS ?
"PRESS" : "RELEASE", button->detail);
if (!wm_lookup_window(wm, button->event, &window) ||
!window->decorate)
return;
if (button->detail != 1 && button->detail != 2)
return;
seat = weston_wm_pick_seat_for_window(window);
pointer = weston_seat_get_pointer(seat);
button_state = button->response_type == XCB_BUTTON_PRESS ?
WL_POINTER_BUTTON_STATE_PRESSED :
WL_POINTER_BUTTON_STATE_RELEASED;
button_id = button->detail == 1 ? BTN_LEFT : BTN_RIGHT;
if (button_state == WL_POINTER_BUTTON_STATE_PRESSED) {
if (button->time - window->last_button_time <= DOUBLE_CLICK_PERIOD) {
double_click = 1;
window->did_double = 1;
} else
window->did_double = 0;
window->last_button_time = button->time;
} else if (window->did_double == 1) {
double_click = 1;
window->did_double = 0;
}
/* Make sure we're looking at the right location. The frame
* could have received a motion event from a pointer from a
* different wl_seat, but under X it looks like our core
* pointer moved. Move the frame pointer to the button press
* location before deciding what to do. */
location = frame_pointer_motion(window->frame, NULL,
button->event_x, button->event_y);
if (double_click)
location = frame_double_click(window->frame, NULL,
button_id, button_state);
else
location = frame_pointer_button(window->frame, NULL,
button_id, button_state);
if (frame_status(window->frame) & FRAME_STATUS_REPAINT)
weston_wm_window_schedule_repaint(window);
if (frame_status(window->frame) & FRAME_STATUS_MOVE) {
if (pointer)
xwayland_interface->move(window->shsurf, pointer);
frame_status_clear(window->frame, FRAME_STATUS_MOVE);
}
if (frame_status(window->frame) & FRAME_STATUS_RESIZE) {
if (pointer)
xwayland_interface->resize(window->shsurf, pointer, location);
frame_status_clear(window->frame, FRAME_STATUS_RESIZE);
}
if (frame_status(window->frame) & FRAME_STATUS_CLOSE) {
weston_wm_window_close(window, button->time);
frame_status_clear(window->frame, FRAME_STATUS_CLOSE);
}
if (frame_status(window->frame) & FRAME_STATUS_MAXIMIZE) {
window->maximized_horz = !window->maximized_horz;
window->maximized_vert = !window->maximized_vert;
weston_wm_window_set_net_wm_state(window);
if (weston_wm_window_is_maximized(window)) {
window->saved_width = window->width;
window->saved_height = window->height;
xwayland_interface->set_maximized(window->shsurf);
} else {
weston_wm_window_set_toplevel(window);
}
frame_status_clear(window->frame, FRAME_STATUS_MAXIMIZE);
}
}
static void
weston_wm_handle_motion(struct weston_wm *wm, xcb_generic_event_t *event)
{
xcb_motion_notify_event_t *motion = (xcb_motion_notify_event_t *) event;
struct weston_wm_window *window;
enum theme_location location;
int cursor;
if (!wm_lookup_window(wm, motion->event, &window) ||
!window->decorate)
return;
location = frame_pointer_motion(window->frame, NULL,
motion->event_x, motion->event_y);
if (frame_status(window->frame) & FRAME_STATUS_REPAINT)
weston_wm_window_schedule_repaint(window);
cursor = get_cursor_for_location(location);
weston_wm_window_set_cursor(wm, window->frame_id, cursor);
}
static void
weston_wm_handle_enter(struct weston_wm *wm, xcb_generic_event_t *event)
{
xcb_enter_notify_event_t *enter = (xcb_enter_notify_event_t *) event;
struct weston_wm_window *window;
enum theme_location location;
int cursor;
if (!wm_lookup_window(wm, enter->event, &window) ||
!window->decorate)
return;
location = frame_pointer_enter(window->frame, NULL,
enter->event_x, enter->event_y);
if (frame_status(window->frame) & FRAME_STATUS_REPAINT)
weston_wm_window_schedule_repaint(window);
cursor = get_cursor_for_location(location);
weston_wm_window_set_cursor(wm, window->frame_id, cursor);
}
static void
weston_wm_handle_leave(struct weston_wm *wm, xcb_generic_event_t *event)
{
xcb_leave_notify_event_t *leave = (xcb_leave_notify_event_t *) event;
struct weston_wm_window *window;
if (!wm_lookup_window(wm, leave->event, &window) ||
!window->decorate)
return;
frame_pointer_leave(window->frame, NULL);
if (frame_status(window->frame) & FRAME_STATUS_REPAINT)
weston_wm_window_schedule_repaint(window);
weston_wm_window_set_cursor(wm, window->frame_id, XWM_CURSOR_LEFT_PTR);
}
static void
weston_wm_handle_focus_in(struct weston_wm *wm, xcb_generic_event_t *event)
{
xcb_focus_in_event_t *focus = (xcb_focus_in_event_t *) event;
/* Do not interfere with grabs */
if (focus->mode == XCB_NOTIFY_MODE_GRAB ||
focus->mode == XCB_NOTIFY_MODE_UNGRAB)
return;
/* Do not let X clients change the focus behind the compositor's
* back. Reset the focus to the old one if it changed. */
if (!wm->focus_window || focus->event != wm->focus_window->id)
weston_wm_send_focus_window(wm, wm->focus_window);
}
static int
weston_wm_handle_event(int fd, uint32_t mask, void *data)
{
struct weston_wm *wm = data;
xcb_generic_event_t *event;
int count = 0;
while (event = xcb_poll_for_event(wm->conn), event != NULL) {
if (weston_wm_handle_selection_event(wm, event)) {
free(event);
count++;
continue;
}
if (weston_wm_handle_dnd_event(wm, event)) {
free(event);
count++;
continue;
}
switch (EVENT_TYPE(event)) {
case XCB_BUTTON_PRESS:
case XCB_BUTTON_RELEASE:
weston_wm_handle_button(wm, event);
break;
case XCB_ENTER_NOTIFY:
weston_wm_handle_enter(wm, event);
break;
case XCB_LEAVE_NOTIFY:
weston_wm_handle_leave(wm, event);
break;
case XCB_MOTION_NOTIFY:
weston_wm_handle_motion(wm, event);
break;
case XCB_CREATE_NOTIFY:
weston_wm_handle_create_notify(wm, event);
break;
case XCB_MAP_REQUEST:
weston_wm_handle_map_request(wm, event);
break;
case XCB_MAP_NOTIFY:
weston_wm_handle_map_notify(wm, event);
break;
case XCB_UNMAP_NOTIFY:
weston_wm_handle_unmap_notify(wm, event);
break;
case XCB_REPARENT_NOTIFY:
weston_wm_handle_reparent_notify(wm, event);
break;
case XCB_CONFIGURE_REQUEST:
weston_wm_handle_configure_request(wm, event);
break;
case XCB_CONFIGURE_NOTIFY:
weston_wm_handle_configure_notify(wm, event);
break;
case XCB_DESTROY_NOTIFY:
weston_wm_handle_destroy_notify(wm, event);
break;
case XCB_MAPPING_NOTIFY:
wm_printf(wm, "XCB_MAPPING_NOTIFY\n");
break;
case XCB_PROPERTY_NOTIFY:
weston_wm_handle_property_notify(wm, event);
break;
case XCB_CLIENT_MESSAGE:
weston_wm_handle_client_message(wm, event);
break;
case XCB_FOCUS_IN:
weston_wm_handle_focus_in(wm, event);
break;
}
free(event);
count++;
}
if (count != 0)
xcb_flush(wm->conn);
return count;
}
static void
weston_wm_set_net_active_window(struct weston_wm *wm, xcb_window_t window) {
xcb_change_property(wm->conn, XCB_PROP_MODE_REPLACE,
wm->screen->root, wm->atom.net_active_window,
wm->atom.window, 32, 1, &window);
}
static void
weston_wm_get_visual_and_colormap(struct weston_wm *wm)
{
xcb_depth_iterator_t d_iter;
xcb_visualtype_iterator_t vt_iter;
xcb_visualtype_t *visualtype;
d_iter = xcb_screen_allowed_depths_iterator(wm->screen);
visualtype = NULL;
while (d_iter.rem > 0) {
if (d_iter.data->depth == 32) {
vt_iter = xcb_depth_visuals_iterator(d_iter.data);
visualtype = vt_iter.data;
break;
}
xcb_depth_next(&d_iter);
}
if (visualtype == NULL) {
weston_log("no 32 bit visualtype\n");
return;
}
wm->visual_id = visualtype->visual_id;
wm->colormap = xcb_generate_id(wm->conn);
xcb_create_colormap(wm->conn, XCB_COLORMAP_ALLOC_NONE,
wm->colormap, wm->screen->root, wm->visual_id);
}
static void
weston_wm_get_resources(struct weston_wm *wm)
{
xcb_xfixes_query_version_cookie_t xfixes_cookie;
xcb_xfixes_query_version_reply_t *xfixes_reply;
xcb_render_query_pict_formats_reply_t *formats_reply;
xcb_render_query_pict_formats_cookie_t formats_cookie;
xcb_render_pictforminfo_t *formats;
uint32_t i;
xcb_prefetch_extension_data (wm->conn, &xcb_xfixes_id);
xcb_prefetch_extension_data (wm->conn, &xcb_composite_id);
formats_cookie = xcb_render_query_pict_formats(wm->conn);
x11_get_atoms(wm->conn, &wm->atom);
wm->xfixes = xcb_get_extension_data(wm->conn, &xcb_xfixes_id);
if (!wm->xfixes || !wm->xfixes->present)
weston_log("xfixes not available\n");
xfixes_cookie = xcb_xfixes_query_version(wm->conn,
XCB_XFIXES_MAJOR_VERSION,
XCB_XFIXES_MINOR_VERSION);
xfixes_reply = xcb_xfixes_query_version_reply(wm->conn,
xfixes_cookie, NULL);
weston_log("xfixes version: %d.%d\n",
xfixes_reply->major_version, xfixes_reply->minor_version);
free(xfixes_reply);
formats_reply = xcb_render_query_pict_formats_reply(wm->conn,
formats_cookie, 0);
if (formats_reply == NULL)
return;
formats = xcb_render_query_pict_formats_formats(formats_reply);
for (i = 0; i < formats_reply->num_formats; i++) {
if (formats[i].direct.red_mask != 0xff &&
formats[i].direct.red_shift != 16)
continue;
if (formats[i].type == XCB_RENDER_PICT_TYPE_DIRECT &&
formats[i].depth == 24)
wm->format_rgb = formats[i];
if (formats[i].type == XCB_RENDER_PICT_TYPE_DIRECT &&
formats[i].depth == 32 &&
formats[i].direct.alpha_mask == 0xff &&
formats[i].direct.alpha_shift == 24)
wm->format_rgba = formats[i];
}
free(formats_reply);
}
static void
weston_wm_create_wm_window(struct weston_wm *wm)
{
static const char name[] = "Weston WM";
wm->wm_window = xcb_generate_id(wm->conn);
xcb_create_window(wm->conn,
XCB_COPY_FROM_PARENT,
wm->wm_window,
wm->screen->root,
0, 0,
10, 10,
0,
XCB_WINDOW_CLASS_INPUT_OUTPUT,
wm->screen->root_visual,
0, NULL);
xcb_change_property(wm->conn,
XCB_PROP_MODE_REPLACE,
wm->wm_window,
wm->atom.net_supporting_wm_check,
XCB_ATOM_WINDOW,
32, /* format */
1, &wm->wm_window);
xcb_change_property(wm->conn,
XCB_PROP_MODE_REPLACE,
wm->wm_window,
wm->atom.net_wm_name,
wm->atom.utf8_string,
8, /* format */
strlen(name), name);
xcb_change_property(wm->conn,
XCB_PROP_MODE_REPLACE,
wm->screen->root,
wm->atom.net_supporting_wm_check,
XCB_ATOM_WINDOW,
32, /* format */
1, &wm->wm_window);
/* Claim the WM_S0 selection even though we don't support
* the --replace functionality. */
xcb_set_selection_owner(wm->conn,
wm->wm_window,
wm->atom.wm_s0,
XCB_TIME_CURRENT_TIME);
xcb_set_selection_owner(wm->conn,
wm->wm_window,
wm->atom.net_wm_cm_s0,
XCB_TIME_CURRENT_TIME);
}
struct weston_wm *
weston_wm_create(struct weston_xserver *wxs, int fd)
{
struct weston_wm *wm;
struct wl_event_loop *loop;
xcb_screen_iterator_t s;
uint32_t values[1];
xcb_atom_t supported[6];
wm = zalloc(sizeof *wm);
if (wm == NULL)
return NULL;
wm->server = wxs;
wm->window_hash = hash_table_create();
if (wm->window_hash == NULL) {
free(wm);
return NULL;
}
/* xcb_connect_to_fd takes ownership of the fd. */
wm->conn = xcb_connect_to_fd(fd, NULL);
if (xcb_connection_has_error(wm->conn)) {
weston_log("xcb_connect_to_fd failed\n");
close(fd);
hash_table_destroy(wm->window_hash);
free(wm);
return NULL;
}
s = xcb_setup_roots_iterator(xcb_get_setup(wm->conn));
wm->screen = s.data;
loop = wl_display_get_event_loop(wxs->wl_display);
wm->source =
wl_event_loop_add_fd(loop, fd,
WL_EVENT_READABLE,
weston_wm_handle_event, wm);
wl_event_source_check(wm->source);
weston_wm_get_resources(wm);
weston_wm_get_visual_and_colormap(wm);
values[0] =
XCB_EVENT_MASK_SUBSTRUCTURE_NOTIFY |
XCB_EVENT_MASK_SUBSTRUCTURE_REDIRECT |
XCB_EVENT_MASK_PROPERTY_CHANGE;
xcb_change_window_attributes(wm->conn, wm->screen->root,
XCB_CW_EVENT_MASK, values);
xcb_composite_redirect_subwindows(wm->conn, wm->screen->root,
XCB_COMPOSITE_REDIRECT_MANUAL);
wm->theme = theme_create();
supported[0] = wm->atom.net_wm_moveresize;
supported[1] = wm->atom.net_wm_state;
supported[2] = wm->atom.net_wm_state_fullscreen;
supported[3] = wm->atom.net_wm_state_maximized_vert;
supported[4] = wm->atom.net_wm_state_maximized_horz;
supported[5] = wm->atom.net_active_window;
xcb_change_property(wm->conn,
XCB_PROP_MODE_REPLACE,
wm->screen->root,
wm->atom.net_supported,
XCB_ATOM_ATOM,
32, /* format */
ARRAY_LENGTH(supported), supported);
weston_wm_set_net_active_window(wm, XCB_WINDOW_NONE);
weston_wm_selection_init(wm);
weston_wm_dnd_init(wm);
xcb_flush(wm->conn);
wm->create_surface_listener.notify = weston_wm_create_surface;
wl_signal_add(&wxs->compositor->create_surface_signal,
&wm->create_surface_listener);
wm->activate_listener.notify = weston_wm_window_activate;
wl_signal_add(&wxs->compositor->activate_signal,
&wm->activate_listener);
wm->kill_listener.notify = weston_wm_kill_client;
wl_signal_add(&wxs->compositor->kill_signal,
&wm->kill_listener);
wl_list_init(&wm->unpaired_window_list);
weston_wm_create_cursors(wm);
weston_wm_window_set_cursor(wm, wm->screen->root, XWM_CURSOR_LEFT_PTR);
/* Create wm window and take WM_S0 selection last, which
* signals to Xwayland that we're done with setup. */
weston_wm_create_wm_window(wm);
weston_log("created wm, root %d\n", wm->screen->root);
return wm;
}
void
weston_wm_destroy(struct weston_wm *wm)
{
/* FIXME: Free windows in hash. */
hash_table_destroy(wm->window_hash);
weston_wm_destroy_cursors(wm);
theme_destroy(wm->theme);
xcb_disconnect(wm->conn);
wl_event_source_remove(wm->source);
wl_list_remove(&wm->selection_listener.link);
wl_list_remove(&wm->activate_listener.link);
wl_list_remove(&wm->kill_listener.link);
wl_list_remove(&wm->create_surface_listener.link);
free(wm);
}
static struct weston_wm_window *
get_wm_window(struct weston_surface *surface)
{
struct wl_listener *listener;
listener = wl_signal_get(&surface->destroy_signal, surface_destroy);
if (listener)
return container_of(listener, struct weston_wm_window,
surface_destroy_listener);
return NULL;
}
static bool
is_wm_window(struct weston_surface *surface)
{
return get_wm_window(surface) != NULL;
}
static void
weston_wm_window_configure(void *data)
{
struct weston_wm_window *window = data;
struct weston_wm *wm = window->wm;
uint32_t values[4];
int x, y;
if (window->configure_source) {
wl_event_source_remove(window->configure_source);
window->configure_source = NULL;
}
weston_wm_window_set_allow_commits(window, false);
weston_wm_window_get_child_position(window, &x, &y);
values[0] = x;
values[1] = y;
values[2] = window->width;
values[3] = window->height;
weston_wm_configure_window(wm, window->id,
XCB_CONFIG_WINDOW_X |
XCB_CONFIG_WINDOW_Y |
XCB_CONFIG_WINDOW_WIDTH |
XCB_CONFIG_WINDOW_HEIGHT,
values);
weston_wm_window_configure_frame(window);
weston_wm_window_schedule_repaint(window);
}
static void
send_configure(struct weston_surface *surface, int32_t width, int32_t height)
{
struct weston_wm_window *window = get_wm_window(surface);
struct weston_wm *wm;
struct theme *t;
int new_width, new_height;
int vborder, hborder;
if (!window || !window->wm)
return;
wm = window->wm;
t = wm->theme;
if (window->decorate && !window->fullscreen) {
hborder = 2 * t->width;
vborder = t->titlebar_height + t->width;
} else {
hborder = 0;
vborder = 0;
}
if (width > hborder)
new_width = width - hborder;
else
new_width = 1;
if (height > vborder)
new_height = height - vborder;
else
new_height = 1;
if (window->width != new_width || window->height != new_height) {
window->width = new_width;
window->height = new_height;
if (window->frame) {
if (weston_wm_window_is_maximized(window))
frame_set_flag(window->frame, FRAME_FLAG_MAXIMIZED);
frame_resize_inside(window->frame,
window->width, window->height);
}
}
if (window->configure_source)
return;
window->configure_source =
wl_event_loop_add_idle(wm->server->loop,
weston_wm_window_configure, window);
}
static void
send_close(struct weston_surface *surface)
{
struct weston_wm_window *window = get_wm_window(surface);
if (!window || !window->wm)
return;
weston_wm_window_close(window, XCB_CURRENT_TIME);
xcb_flush(window->wm->conn);
}
static void
send_position(struct weston_surface *surface, int32_t x, int32_t y)
{
struct weston_wm_window *window = get_wm_window(surface);
struct weston_wm *wm;
uint32_t values[2];
uint16_t mask;
if (!window || !window->wm)
return;
wm = window->wm;
/* We use pos_dirty to tell whether a configure message is in flight.
* This is needed in case we send two configure events in a very
* short time, since window->x/y is set in after a roundtrip, hence
* we cannot just check if the current x and y are different. */
if (window->x != x || window->y != y || window->pos_dirty) {
window->pos_dirty = true;
values[0] = x;
values[1] = y;
mask = XCB_CONFIG_WINDOW_X | XCB_CONFIG_WINDOW_Y;
weston_wm_configure_window(wm, window->frame_id, mask, values);
xcb_flush(wm->conn);
}
}
static const struct weston_xwayland_client_interface shell_client = {
send_configure,
send_close,
};
static int
legacy_fullscreen(struct weston_wm *wm,
struct weston_wm_window *window,
struct weston_output **output_ret)
{
struct weston_compositor *compositor = wm->server->compositor;
struct weston_output *output;
uint32_t minmax = PMinSize | PMaxSize;
int matching_size;
/* Heuristics for detecting legacy fullscreen windows... */
wl_list_for_each(output, &compositor->output_list, link) {
if (output->x == window->x &&
output->y == window->y &&
output->width == window->width &&
output->height == window->height &&
window->override_redirect) {
*output_ret = output;
return 1;
}
matching_size = 0;
if ((window->size_hints.flags & (USSize |PSize)) &&
window->size_hints.width == output->width &&
window->size_hints.height == output->height)
matching_size = 1;
if ((window->size_hints.flags & minmax) == minmax &&
window->size_hints.min_width == output->width &&
window->size_hints.min_height == output->height &&
window->size_hints.max_width == output->width &&
window->size_hints.max_height == output->height)
matching_size = 1;
if (matching_size && !window->decorate &&
(window->size_hints.flags & (USPosition | PPosition)) &&
window->size_hints.x == output->x &&
window->size_hints.y == output->y) {
*output_ret = output;
return 1;
}
}
return 0;
}
static bool
weston_wm_window_is_positioned(struct weston_wm_window *window)
{
if (window->map_request_x == INT_MIN ||
window->map_request_y == INT_MIN)
weston_log("XWM warning: win %d did not see map request\n",
window->id);
return window->map_request_x != 0 || window->map_request_y != 0;
}
static bool
weston_wm_window_type_inactive(struct weston_wm_window *window)
{
struct weston_wm *wm = window->wm;
return window->type == wm->atom.net_wm_window_type_tooltip ||
window->type == wm->atom.net_wm_window_type_dropdown ||
window->type == wm->atom.net_wm_window_type_dnd ||
window->type == wm->atom.net_wm_window_type_combo ||
window->type == wm->atom.net_wm_window_type_popup ||
window->type == wm->atom.net_wm_window_type_utility;
}
static void
xserver_map_shell_surface(struct weston_wm_window *window,
struct weston_surface *surface)
{
struct weston_wm *wm = window->wm;
struct weston_desktop_xwayland *xwayland =
wm->server->compositor->xwayland;
const struct weston_desktop_xwayland_interface *xwayland_interface =
wm->server->compositor->xwayland_interface;
struct weston_wm_window *parent;
/* This should be necessary only for override-redirected windows,
* because otherwise MapRequest handler would have already updated
* the properties. However, if X11 clients set properties after
* sending MapWindow, here we can still process them. The decorations
* have already been drawn once with the old property values, so if the
* app changes something affecting decor after MapWindow, we glitch.
* We only hit xserver_map_shell_surface() once per MapWindow and
* wl_surface, so better ensure we get the window type right.
*/
weston_wm_window_read_properties(window);
/* A weston_wm_window may have many different surfaces assigned
* throughout its life, so we must make sure to remove the listener
* from the old surface signal list. */
if (window->surface)
wl_list_remove(&window->surface_destroy_listener.link);
window->surface = surface;
window->surface_destroy_listener.notify = surface_destroy;
wl_signal_add(&window->surface->destroy_signal,
&window->surface_destroy_listener);
if (!xwayland_interface)
return;
if (window->surface->committed) {
weston_log("warning, unexpected in %s: "
"surface's configure hook is already set.\n",
__func__);
return;
}
window->shsurf =
xwayland_interface->create_surface(xwayland,
window->surface,
&shell_client);
wm_printf(wm, "XWM: map shell surface, win %d, weston_surface %p, xwayland surface %p\n",
window->id, window->surface, window->shsurf);
if (window->name)
xwayland_interface->set_title(window->shsurf, window->name);
if (window->pid > 0)
xwayland_interface->set_pid(window->shsurf, window->pid);
if (window->fullscreen) {
window->saved_width = window->width;
window->saved_height = window->height;
xwayland_interface->set_fullscreen(window->shsurf,
window->legacy_fullscreen_output.output);
} else if (window->override_redirect) {
xwayland_interface->set_xwayland(window->shsurf,
window->x, window->y);
} else if (window->transient_for && window->transient_for->surface) {
parent = window->transient_for;
if (weston_wm_window_type_inactive(window)) {
xwayland_interface->set_transient(window->shsurf,
parent->surface,
window->x - parent->x,
window->y - parent->y);
} else {
xwayland_interface->set_toplevel(window->shsurf);
xwayland_interface->set_parent(window->shsurf,
parent->surface);
}
} else if (weston_wm_window_is_maximized(window)) {
xwayland_interface->set_maximized(window->shsurf);
} else {
if (weston_wm_window_type_inactive(window)) {
xwayland_interface->set_xwayland(window->shsurf,
window->x,
window->y);
} else if (weston_wm_window_is_positioned(window)) {
xwayland_interface->set_toplevel_with_position(window->shsurf,
window->map_request_x,
window->map_request_y);
} else {
xwayland_interface->set_toplevel(window->shsurf);
}
}
if (window->frame_id == XCB_WINDOW_NONE) {
weston_wm_window_set_pending_state_OR(window);
} else {
weston_wm_window_set_pending_state(window);
weston_wm_window_set_allow_commits(window, true);
xcb_flush(wm->conn);
}
}
const struct weston_xwayland_surface_api surface_api = {
is_wm_window,
send_position,
};