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weston/xwayland/window-manager.c

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/*
* Copyright © 2011 Intel Corporation
*
* Permission to use, copy, modify, distribute, and sell this software and
* its documentation for any purpose is hereby granted without fee, provided
* that the above copyright notice appear in all copies and that both that
* copyright notice and this permission notice appear in supporting
* documentation, and that the name of the copyright holders not be used in
* advertising or publicity pertaining to distribution of the software
* without specific, written prior permission. The copyright holders make
* no representations about the suitability of this software for any
* purpose. It is provided "as is" without express or implied warranty.
*
* THE COPYRIGHT HOLDERS DISCLAIM ALL WARRANTIES WITH REGARD TO THIS
* SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND
* FITNESS, IN NO EVENT SHALL THE COPYRIGHT HOLDERS BE LIABLE FOR ANY
* SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER
* RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF
* CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN
* CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
*/
#include "config.h"
#include <stdlib.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 <X11/Xcursor/Xcursor.h>
#include <linux/input.h>
#include "xwayland.h"
#include "cairo-util.h"
#include "compositor.h"
#include "hash.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_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_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 shell_surface *shsurf;
struct weston_view *view;
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, y;
int saved_width, saved_height;
int decorate;
int override_redirect;
int fullscreen;
int has_alpha;
int delete_window;
struct wm_size_hints size_hints;
struct motif_wm_hints motif_hints;
struct wl_list link;
};
static struct weston_wm_window *
get_wm_window(struct weston_surface *surface);
static void
weston_wm_window_schedule_repaint(struct weston_wm_window *window);
static void
xserver_map_shell_surface(struct weston_wm_window *window,
struct weston_surface *surface);
static int __attribute__ ((format (printf, 1, 2)))
wm_log(const char *fmt, ...)
{
#ifdef WM_DEBUG
int l;
va_list argp;
va_start(argp, fmt);
l = weston_vlog(fmt, argp);
va_end(argp);
return l;
#else
return 0;
#endif
}
static int __attribute__ ((format (printf, 1, 2)))
wm_log_continue(const char *fmt, ...)
{
#ifdef WM_DEBUG
int l;
va_list argp;
va_start(argp, fmt);
l = weston_vlog_continue(fmt, argp);
va_end(argp);
return l;
#else
return 0;
#endif
}
const char *
get_atom_name(xcb_connection_t *c, xcb_atom_t atom)
{
xcb_get_atom_name_cookie_t cookie;
xcb_get_atom_name_reply_t *reply;
xcb_generic_error_t *e;
static char buffer[64];
if (atom == XCB_ATOM_NONE)
return "None";
cookie = xcb_get_atom_name (c, atom);
reply = xcb_get_atom_name_reply (c, cookie, &e);
if(reply) {
snprintf(buffer, sizeof buffer, "%.*s",
xcb_get_atom_name_name_length (reply),
xcb_get_atom_name_name (reply));
} else {
snprintf(buffer, sizeof buffer, "(atom %u)", atom);
}
free(reply);
return buffer;
}
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;
int size = 0;
if (!file)
return 0;
v = getenv ("XCURSOR_SIZE");
if (v)
size = atoi(v);
if (!size)
size = 32;
images = XcursorLibraryLoadImages (file, NULL, size);
if (!images)
return -1;
cursor = xcb_cursor_images_load_cursor (wm, images);
XcursorImagesDestroy (images);
return cursor;
}
void
dump_property(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;
int width, len;
uint32_t i;
width = wm_log_continue("%s: ", get_atom_name(wm->conn, property));
if (reply == NULL) {
wm_log_continue("(no reply)\n");
return;
}
width += wm_log_continue("%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);
wm_log_continue("%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;
wm_log_continue("\"%.*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) {
wm_log_continue("\n ");
width = 4;
} else if (i > 0) {
width += wm_log_continue(", ");
}
width += wm_log_continue("%s", name);
}
wm_log_continue("\n");
} else {
wm_log_continue("huh?\n");
}
}
static void
read_and_dump_property(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(wm, property, reply);
free(reply);
}
/* We reuse some predefined, but otherwise useles atoms */
#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;
struct weston_shell_interface *shell_interface =
&wm->server->compositor->shell_interface;
#define F(field) offsetof(struct weston_wm_window, field)
const struct {
xcb_atom_t atom;
xcb_atom_t type;
int offset;
} 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, F(protocols) },
{ wm->atom.wm_normal_hints, TYPE_WM_NORMAL_HINTS, F(protocols) },
{ wm->atom.net_wm_state, TYPE_NET_WM_STATE },
{ 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, 0 },
{ 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;
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;
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 = ((char *) window + props[i].offset);
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);
*(struct weston_wm_window **) p =
hash_table_lookup(wm->window_hash, *xid);
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;
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)
window->decorate =
window->motif_hints.decorations > 0;
break;
default:
break;
}
free(reply);
}
if (window->shsurf && window->name)
shell_interface->set_title(window->shsurf, window->name);
if (window->frame && window->name)
frame_set_title(window->frame, window->name);
}
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_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 mask, values[16];
int x, y, width, height, i = 0;
wm_log("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);
window = hash_table_lookup(wm->window_hash, configure_request->window);
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)
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;
}
xcb_configure_window(wm->conn, window->id, mask, values);
weston_wm_window_get_frame_size(window, &width, &height);
values[0] = width;
values[1] = height;
mask = XCB_CONFIG_WINDOW_WIDTH | XCB_CONFIG_WINDOW_HEIGHT;
xcb_configure_window(wm->conn, window->frame_id, mask, values);
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;
struct weston_wm_window *window;
wm_log("XCB_CONFIGURE_NOTIFY (window %d) %d,%d @ %dx%d\n",
configure_notify->window,
configure_notify->x, configure_notify->y,
configure_notify->width, configure_notify->height);
window = hash_table_lookup(wm->window_hash, configure_notify->window);
window->x = configure_notify->x;
window->y = configure_notify->y;
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);
}
}
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);
char name[1024];
if (!window)
return;
gethostname(name, 1024);
/* 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 (!strcmp(window->machine, name) && 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;
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_window_activate(struct wl_listener *listener, void *data)
{
struct weston_surface *surface = data;
struct weston_wm_window *window = NULL;
struct weston_wm *wm =
container_of(listener, struct weston_wm, activate_listener);
xcb_client_message_event_t client_message;
if (surface) {
window = get_wm_window(surface);
}
if (window) {
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);
} else {
xcb_set_input_focus (wm->conn,
XCB_INPUT_FOCUS_POINTER_ROOT,
XCB_NONE,
XCB_TIME_CURRENT_TIME);
}
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);
}
}
static void
weston_wm_window_transform(struct wl_listener *listener, void *data)
{
struct weston_surface *surface = data;
struct weston_wm_window *window = get_wm_window(surface);
struct weston_wm *wm =
container_of(listener, struct weston_wm, transform_listener);
uint32_t mask, values[2];
if (!window || !wm)
return;
if (!window->view || !weston_view_is_mapped(window->view))
return;
if (window->x != window->view->geometry.x ||
window->y != window->view->geometry.y) {
values[0] = window->view->geometry.x;
values[1] = window->view->geometry.y;
mask = XCB_CONFIG_WINDOW_X | XCB_CONFIG_WINDOW_Y;
xcb_configure_window(wm->conn, window->frame_id, mask, values);
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[1];
int i;
i = 0;
if (window->fullscreen)
property[i++] = wm->atom.net_wm_state_fullscreen;
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;
window->frame = frame_create(window->wm->theme,
window->width, window->height,
FRAME_BUTTON_CLOSE, window->name);
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;
xcb_configure_window(wm->conn, 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);
}
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;
if (our_resource(wm, map_request->window)) {
wm_log("XCB_MAP_REQUEST (window %d, ours)\n",
map_request->window);
return;
}
window = hash_table_lookup(wm->window_hash, map_request->window);
weston_wm_window_read_properties(window);
if (window->frame_id == XCB_WINDOW_NONE)
weston_wm_window_create_frame(window);
wm_log("XCB_MAP_REQUEST (window %d, %p, frame %d)\n",
window->id, window, window->frame_id);
weston_wm_window_set_wm_state(window, ICCCM_NORMAL_STATE);
weston_wm_window_set_net_wm_state(window);
xcb_map_window(wm->conn, map_request->window);
xcb_map_window(wm->conn, window->frame_id);
}
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_log("XCB_MAP_NOTIFY (window %d, ours)\n",
map_notify->window);
return;
}
wm_log("XCB_MAP_NOTIFY (window %d)\n", map_notify->window);
}
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_log("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;
window = hash_table_lookup(wm->window_hash, unmap_notify->window);
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;
window->view = NULL;
xcb_unmap_window(wm->conn, window->frame_id);
}
static void
weston_wm_window_draw_decoration(void *data)
{
struct weston_wm_window *window = data;
struct weston_wm *wm = window->wm;
struct theme *t = wm->theme;
cairo_t *cr;
int x, y, width, height;
int32_t input_x, input_y, input_w, input_h;
struct weston_shell_interface *shell_interface =
&wm->server->compositor->shell_interface;
uint32_t flags = 0;
weston_wm_window_read_properties(window);
window->repaint_source = NULL;
weston_wm_window_get_frame_size(window, &width, &height);
weston_wm_window_get_child_position(window, &x, &y);
cairo_xcb_surface_set_size(window->cairo_surface, width, height);
cr = cairo_create(window->cairo_surface);
if (window->fullscreen) {
/* nothing */
} else if (window->decorate) {
if (wm->focus_window == window)
flags |= THEME_FRAME_ACTIVE;
frame_repaint(window->frame, cr);
} else {
cairo_set_operator(cr, CAIRO_OPERATOR_SOURCE);
cairo_set_source_rgba(cr, 0, 0, 0, 0);
cairo_paint(cr);
cairo_set_operator(cr, CAIRO_OPERATOR_OVER);
cairo_set_source_rgba(cr, 0, 0, 0, 0.45);
tile_mask(cr, t->shadow, 2, 2, width + 8, height + 8, 64, 64);
}
cairo_destroy(cr);
if (window->surface) {
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->view)
weston_view_geometry_dirty(window->view);
pixman_region32_fini(&window->surface->pending.input);
if (window->fullscreen) {
input_x = 0;
input_y = 0;
input_w = window->width;
input_h = window->height;
} else if (window->decorate) {
frame_input_rect(window->frame, &input_x, &input_y,
&input_w, &input_h);
}
pixman_region32_init_rect(&window->surface->pending.input,
input_x, input_y, input_w, input_h);
shell_interface->set_window_geometry(window->shsurf,
input_x, input_y, input_w, input_h);
}
}
static void
weston_wm_window_schedule_repaint(struct weston_wm_window *window)
{
struct weston_wm *wm = window->wm;
int width, height;
if (window->frame_id == XCB_WINDOW_NONE) {
if (window->surface != NULL) {
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);
}
if (window->view)
weston_view_geometry_dirty(window->view);
}
return;
}
if (window->repaint_source)
return;
window->repaint_source =
wl_event_loop_add_idle(wm->server->loop,
weston_wm_window_draw_decoration,
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;
window = hash_table_lookup(wm->window_hash, property_notify->window);
if (!window)
return;
window->properties_dirty = 1;
wm_log("XCB_PROPERTY_NOTIFY: window %d, ", property_notify->window);
if (property_notify->state == XCB_PROPERTY_DELETE)
wm_log("deleted\n");
else
read_and_dump_property(wm, property_notify->window,
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_log("failed to allocate window\n");
return;
}
geometry_cookie = xcb_get_geometry(wm->conn, id);
values[0] = XCB_EVENT_MASK_PROPERTY_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;
window->x = x;
window->y = y;
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;
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);
hash_table_remove(wm->window_hash, window->frame_id);
window->frame_id = XCB_WINDOW_NONE;
}
if (window->surface_id)
wl_list_remove(&window->link);
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_log("XCB_CREATE_NOTIFY (window %d, width %d, height %d%s%s)\n",
create_notify->window,
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_log("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;
window = hash_table_lookup(wm->window_hash, destroy_notify->window);
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_log("XCB_REPARENT_NOTIFY (window %d, parent %d, event %d)\n",
reparent_notify->window,
reparent_notify->parent,
reparent_notify->event);
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)) {
window = hash_table_lookup(wm->window_hash,
reparent_notify->window);
weston_wm_window_destroy(window);
}
}
struct weston_seat *
weston_wm_pick_seat(struct weston_wm *wm)
{
return container_of(wm->server->compositor->seat_list.next,
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) {
if (s->pointer != NULL &&
s->pointer->focus == window->view &&
s->pointer->button_count > 0 &&
(seat == NULL ||
s->pointer->grab_serial -
seat->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);
int detail;
struct weston_shell_interface *shell_interface =
&wm->server->compositor->shell_interface;
if (seat == NULL || seat->pointer->button_count != 1
|| !window->view || seat->pointer->focus != window->view)
return;
detail = client_message->data.data32[2];
switch (detail) {
case _NET_WM_MOVERESIZE_MOVE:
shell_interface->move(window->shsurf, seat);
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:
shell_interface->resize(window->shsurf, seat, 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_handle_state(struct weston_wm_window *window,
xcb_client_message_event_t *client_message)
{
struct weston_wm *wm = window->wm;
struct weston_shell_interface *shell_interface =
&wm->server->compositor->shell_interface;
uint32_t action, property;
action = client_message->data.data32[0];
property = client_message->data.data32[1];
if (property == 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)
shell_interface->set_fullscreen(window->shsurf,
WL_SHELL_SURFACE_FULLSCREEN_METHOD_DEFAULT,
0, NULL);
} else {
shell_interface->set_toplevel(window->shsurf);
window->width = window->saved_width;
window->height = window->saved_height;
if (window->frame)
frame_resize_inside(window->frame,
window->width,
window->height);
weston_wm_window_configure(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_log("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;
window->view = 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_log("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;
window = hash_table_lookup(wm->window_hash, client_message->window);
wm_log("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 (!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)
{
// int location = theme_get_location(t, x, y, width, height, 0);
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);
}
}
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;
struct weston_shell_interface *shell_interface =
&wm->server->compositor->shell_interface;
struct weston_seat *seat;
struct weston_wm_window *window;
enum theme_location location;
enum frame_button_state button_state;
uint32_t button_id;
wm_log("XCB_BUTTON_%s (detail %d)\n",
button->response_type == XCB_BUTTON_PRESS ?
"PRESS" : "RELEASE", button->detail);
window = hash_table_lookup(wm->window_hash, button->event);
if (!window || !window->decorate)
return;
if (button->detail != 1 && button->detail != 2)
return;
seat = weston_wm_pick_seat_for_window(window);
button_state = button->response_type == XCB_BUTTON_PRESS ?
FRAME_BUTTON_PRESSED : FRAME_BUTTON_RELEASED;
button_id = button->detail == 1 ? BTN_LEFT : BTN_RIGHT;
/* 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);
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) {
shell_interface->move(window->shsurf, seat);
frame_status_clear(window->frame, FRAME_STATUS_MOVE);
}
if (frame_status(window->frame) & FRAME_STATUS_RESIZE) {
shell_interface->resize(window->shsurf, seat, 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);
}
}
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;
window = hash_table_lookup(wm->window_hash, motion->event);
if (!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;
window = hash_table_lookup(wm->window_hash, enter->event);
if (!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;
window = hash_table_lookup(wm->window_hash, leave->event);
if (!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 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_log("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;
}
free(event);
count++;
}
xcb_flush(wm->conn);
return count;
}
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)
{
#define F(field) offsetof(struct weston_wm, field)
static const struct { const char *name; int offset; } atoms[] = {
{ "WM_PROTOCOLS", F(atom.wm_protocols) },
{ "WM_NORMAL_HINTS", F(atom.wm_normal_hints) },
{ "WM_TAKE_FOCUS", F(atom.wm_take_focus) },
{ "WM_DELETE_WINDOW", F(atom.wm_delete_window) },
{ "WM_STATE", F(atom.wm_state) },
{ "WM_S0", F(atom.wm_s0) },
{ "WM_CLIENT_MACHINE", F(atom.wm_client_machine) },
{ "_NET_WM_CM_S0", F(atom.net_wm_cm_s0) },
{ "_NET_WM_NAME", F(atom.net_wm_name) },
{ "_NET_WM_PID", F(atom.net_wm_pid) },
{ "_NET_WM_ICON", F(atom.net_wm_icon) },
{ "_NET_WM_STATE", F(atom.net_wm_state) },
{ "_NET_WM_STATE_FULLSCREEN", F(atom.net_wm_state_fullscreen) },
{ "_NET_WM_USER_TIME", F(atom.net_wm_user_time) },
{ "_NET_WM_ICON_NAME", F(atom.net_wm_icon_name) },
{ "_NET_WM_WINDOW_TYPE", F(atom.net_wm_window_type) },
{ "_NET_WM_WINDOW_TYPE_DESKTOP", F(atom.net_wm_window_type_desktop) },
{ "_NET_WM_WINDOW_TYPE_DOCK", F(atom.net_wm_window_type_dock) },
{ "_NET_WM_WINDOW_TYPE_TOOLBAR", F(atom.net_wm_window_type_toolbar) },
{ "_NET_WM_WINDOW_TYPE_MENU", F(atom.net_wm_window_type_menu) },
{ "_NET_WM_WINDOW_TYPE_UTILITY", F(atom.net_wm_window_type_utility) },
{ "_NET_WM_WINDOW_TYPE_SPLASH", F(atom.net_wm_window_type_splash) },
{ "_NET_WM_WINDOW_TYPE_DIALOG", F(atom.net_wm_window_type_dialog) },
{ "_NET_WM_WINDOW_TYPE_DROPDOWN_MENU", F(atom.net_wm_window_type_dropdown) },
{ "_NET_WM_WINDOW_TYPE_POPUP_MENU", F(atom.net_wm_window_type_popup) },
{ "_NET_WM_WINDOW_TYPE_TOOLTIP", F(atom.net_wm_window_type_tooltip) },
{ "_NET_WM_WINDOW_TYPE_NOTIFICATION", F(atom.net_wm_window_type_notification) },
{ "_NET_WM_WINDOW_TYPE_COMBO", F(atom.net_wm_window_type_combo) },
{ "_NET_WM_WINDOW_TYPE_DND", F(atom.net_wm_window_type_dnd) },
{ "_NET_WM_WINDOW_TYPE_NORMAL", F(atom.net_wm_window_type_normal) },
{ "_NET_WM_MOVERESIZE", F(atom.net_wm_moveresize) },
{ "_NET_SUPPORTING_WM_CHECK",
F(atom.net_supporting_wm_check) },
{ "_NET_SUPPORTED", F(atom.net_supported) },
{ "_MOTIF_WM_HINTS", F(atom.motif_wm_hints) },
{ "CLIPBOARD", F(atom.clipboard) },
{ "CLIPBOARD_MANAGER", F(atom.clipboard_manager) },
{ "TARGETS", F(atom.targets) },
{ "UTF8_STRING", F(atom.utf8_string) },
{ "_WL_SELECTION", F(atom.wl_selection) },
{ "INCR", F(atom.incr) },
{ "TIMESTAMP", F(atom.timestamp) },
{ "MULTIPLE", F(atom.multiple) },
{ "UTF8_STRING" , F(atom.utf8_string) },
{ "COMPOUND_TEXT", F(atom.compound_text) },
{ "TEXT", F(atom.text) },
{ "STRING", F(atom.string) },
{ "text/plain;charset=utf-8", F(atom.text_plain_utf8) },
{ "text/plain", F(atom.text_plain) },
{ "XdndSelection", F(atom.xdnd_selection) },
{ "XdndAware", F(atom.xdnd_aware) },
{ "XdndEnter", F(atom.xdnd_enter) },
{ "XdndLeave", F(atom.xdnd_leave) },
{ "XdndDrop", F(atom.xdnd_drop) },
{ "XdndStatus", F(atom.xdnd_status) },
{ "XdndFinished", F(atom.xdnd_finished) },
{ "XdndTypeList", F(atom.xdnd_type_list) },
{ "XdndActionCopy", F(atom.xdnd_action_copy) },
{ "WL_SURFACE_ID", F(atom.wl_surface_id) }
};
#undef F
xcb_xfixes_query_version_cookie_t xfixes_cookie;
xcb_xfixes_query_version_reply_t *xfixes_reply;
xcb_intern_atom_cookie_t cookies[ARRAY_LENGTH(atoms)];
xcb_intern_atom_reply_t *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);
for (i = 0; i < ARRAY_LENGTH(atoms); i++)
cookies[i] = xcb_intern_atom (wm->conn, 0,
strlen(atoms[i].name),
atoms[i].name);
for (i = 0; i < ARRAY_LENGTH(atoms); i++) {
reply = xcb_intern_atom_reply (wm->conn, cookies[i], NULL);
*(xcb_atom_t *) ((char *) wm + atoms[i].offset) = reply->atom;
free(reply);
}
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 suport
* 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[3];
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;
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_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->transform_listener.notify = weston_wm_window_transform;
wl_signal_add(&wxs->compositor->transform_signal,
&wm->transform_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);
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->transform_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 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, width, height;
weston_wm_window_get_child_position(window, &x, &y);
values[0] = x;
values[1] = y;
values[2] = window->width;
values[3] = window->height;
xcb_configure_window(wm->conn,
window->id,
XCB_CONFIG_WINDOW_X |
XCB_CONFIG_WINDOW_Y |
XCB_CONFIG_WINDOW_WIDTH |
XCB_CONFIG_WINDOW_HEIGHT,
values);
weston_wm_window_get_frame_size(window, &width, &height);
values[0] = width;
values[1] = height;
xcb_configure_window(wm->conn,
window->frame_id,
XCB_CONFIG_WINDOW_WIDTH |
XCB_CONFIG_WINDOW_HEIGHT,
values);
window->configure_source = NULL;
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 = window->wm;
struct theme *t = window->wm->theme;
int vborder, hborder;
if (window->decorate) {
hborder = 2 * t->width;
vborder = t->titlebar_height + t->width;
} else {
hborder = 0;
vborder = 0;
}
if (width > hborder)
window->width = width - hborder;
else
window->width = 1;
if (height > vborder)
window->height = height - vborder;
else
window->height = 1;
if (window->frame)
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 const struct weston_shell_client shell_client = {
send_configure
};
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 void
xserver_map_shell_surface(struct weston_wm_window *window,
struct weston_surface *surface)
{
struct weston_wm *wm = window->wm;
struct weston_shell_interface *shell_interface =
&wm->server->compositor->shell_interface;
struct weston_output *output;
struct weston_wm_window *parent;
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);
weston_wm_window_schedule_repaint(window);
if (!shell_interface->create_shell_surface)
return;
if (!shell_interface->get_primary_view)
return;
window->shsurf =
shell_interface->create_shell_surface(shell_interface->shell,
window->surface,
&shell_client);
window->view = shell_interface->get_primary_view(shell_interface->shell,
window->shsurf);
if (window->name)
shell_interface->set_title(window->shsurf, window->name);
if (window->fullscreen) {
window->saved_width = window->width;
window->saved_height = window->height;
shell_interface->set_fullscreen(window->shsurf,
WL_SHELL_SURFACE_FULLSCREEN_METHOD_DEFAULT,
0, NULL);
return;
} else if (legacy_fullscreen(wm, window, &output)) {
window->fullscreen = 1;
shell_interface->set_fullscreen(window->shsurf,
WL_SHELL_SURFACE_FULLSCREEN_METHOD_DEFAULT,
0, output);
} else if (window->override_redirect) {
shell_interface->set_xwayland(window->shsurf,
window->x,
window->y,
WL_SHELL_SURFACE_TRANSIENT_INACTIVE);
} else if (window->transient_for && window->transient_for->surface) {
parent = window->transient_for;
shell_interface->set_transient(window->shsurf,
parent->surface,
window->x - parent->x,
window->y - parent->y, 0);
} else {
shell_interface->set_toplevel(window->shsurf);
}
}