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awesome/ewmh.c
Uli Schlachter b909068430 Set _NET_WM_DESKTOP for sticky windows specially (#2653) 
Today I learnt that _NET_WM_STATE_STICKY means something else than I
previously thought.

ICCCM and EWMH support virtual desktops that are larger than the actual
screen. The idea is that one can scroll through this virtual desktop,
which means that e.g. all windows move to the left, so one can see the
windows that are further to the right.

_NET_WM_STATE_STICKY indicates that a window is sticky. This means that
it does not scroll with the virtual desktop, but instead sticks to its
current position.

In AwesomeWM, we use a different definition. A sticky window is always
visible, even when it is not tagged with any of the currently selected
tags. This behaviour is indicated in EWMH with a special value of
_NET_WM_DESKTOP. This commit updates the code to actually set this
special value.

This fixes attaching tabs in Google Chrome when the "target window" is
sticky (in the AwesomeWM sense).

Fixes: https://github.com/awesomeWM/awesome/issues/2652
Signed-off-by: Uli Schlachter <psychon@znc.in>
2019-02-16 13:51:29 -05:00

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/*
* ewmh.c - EWMH support functions
*
* Copyright © 2007-2009 Julien Danjou <julien@danjou.info>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License along
* with this program; if not, write to the Free Software Foundation, Inc.,
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
*
*/
#include "ewmh.h"
#include "objects/client.h"
#include "objects/tag.h"
#include "common/atoms.h"
#include "xwindow.h"
#include <sys/types.h>
#include <unistd.h>
#include <xcb/xcb.h>
#include <xcb/xcb_atom.h>
#define _NET_WM_STATE_REMOVE 0
#define _NET_WM_STATE_ADD 1
#define _NET_WM_STATE_TOGGLE 2
#define ALL_DESKTOPS 0xffffffff
/** Update client EWMH hints.
* \param L The Lua VM state.
*/
static int
ewmh_client_update_hints(lua_State *L)
{
client_t *c = luaA_checkudata(L, 1, &client_class);
xcb_atom_t state[10]; /* number of defined state atoms */
int i = 0;
if(c->modal)
state[i++] = _NET_WM_STATE_MODAL;
if(c->fullscreen)
state[i++] = _NET_WM_STATE_FULLSCREEN;
if(c->maximized_vertical || c->maximized)
state[i++] = _NET_WM_STATE_MAXIMIZED_VERT;
if(c->maximized_horizontal || c->maximized)
state[i++] = _NET_WM_STATE_MAXIMIZED_HORZ;
if(c->sticky)
state[i++] = _NET_WM_STATE_STICKY;
if(c->skip_taskbar)
state[i++] = _NET_WM_STATE_SKIP_TASKBAR;
if(c->above)
state[i++] = _NET_WM_STATE_ABOVE;
if(c->below)
state[i++] = _NET_WM_STATE_BELOW;
if(c->minimized)
state[i++] = _NET_WM_STATE_HIDDEN;
if(c->urgent)
state[i++] = _NET_WM_STATE_DEMANDS_ATTENTION;
xcb_change_property(globalconf.connection, XCB_PROP_MODE_REPLACE,
c->window, _NET_WM_STATE, XCB_ATOM_ATOM, 32, i, state);
return 0;
}
static int
ewmh_update_net_active_window(lua_State *L)
{
xcb_window_t win;
if(globalconf.focus.client)
win = globalconf.focus.client->window;
else
win = XCB_NONE;
xcb_change_property(globalconf.connection, XCB_PROP_MODE_REPLACE,
globalconf.screen->root,
_NET_ACTIVE_WINDOW, XCB_ATOM_WINDOW, 32, 1, &win);
return 0;
}
static int
ewmh_update_net_client_list(lua_State *L)
{
xcb_window_t *wins = p_alloca(xcb_window_t, globalconf.clients.len);
int n = 0;
foreach(client, globalconf.clients)
wins[n++] = (*client)->window;
xcb_change_property(globalconf.connection, XCB_PROP_MODE_REPLACE,
globalconf.screen->root,
_NET_CLIENT_LIST, XCB_ATOM_WINDOW, 32, n, wins);
return 0;
}
static int
ewmh_client_update_frame_extents(lua_State *L)
{
client_t *c = luaA_checkudata(L, 1, &client_class);;
uint32_t extents[4];
extents[0] = c->border_width + c->titlebar[CLIENT_TITLEBAR_LEFT].size;
extents[1] = c->border_width + c->titlebar[CLIENT_TITLEBAR_RIGHT].size;
extents[2] = c->border_width + c->titlebar[CLIENT_TITLEBAR_TOP].size;
extents[3] = c->border_width + c->titlebar[CLIENT_TITLEBAR_BOTTOM].size;
xcb_change_property(globalconf.connection, XCB_PROP_MODE_REPLACE,
c->window, _NET_FRAME_EXTENTS, XCB_ATOM_CARDINAL, 32, 4, extents);
return 0;
}
void
ewmh_init(void)
{
xcb_window_t father;
xcb_screen_t *xscreen = globalconf.screen;
xcb_atom_t atom[] =
{
_NET_SUPPORTED,
_NET_SUPPORTING_WM_CHECK,
_NET_STARTUP_ID,
_NET_CLIENT_LIST,
_NET_CLIENT_LIST_STACKING,
_NET_NUMBER_OF_DESKTOPS,
_NET_CURRENT_DESKTOP,
_NET_DESKTOP_NAMES,
_NET_ACTIVE_WINDOW,
_NET_CLOSE_WINDOW,
_NET_FRAME_EXTENTS,
_NET_WM_NAME,
_NET_WM_STRUT_PARTIAL,
_NET_WM_ICON_NAME,
_NET_WM_VISIBLE_ICON_NAME,
_NET_WM_DESKTOP,
_NET_WM_WINDOW_TYPE,
_NET_WM_WINDOW_TYPE_DESKTOP,
_NET_WM_WINDOW_TYPE_DOCK,
_NET_WM_WINDOW_TYPE_TOOLBAR,
_NET_WM_WINDOW_TYPE_MENU,
_NET_WM_WINDOW_TYPE_UTILITY,
_NET_WM_WINDOW_TYPE_SPLASH,
_NET_WM_WINDOW_TYPE_DIALOG,
_NET_WM_WINDOW_TYPE_DROPDOWN_MENU,
_NET_WM_WINDOW_TYPE_POPUP_MENU,
_NET_WM_WINDOW_TYPE_TOOLTIP,
_NET_WM_WINDOW_TYPE_NOTIFICATION,
_NET_WM_WINDOW_TYPE_COMBO,
_NET_WM_WINDOW_TYPE_DND,
_NET_WM_WINDOW_TYPE_NORMAL,
_NET_WM_ICON,
_NET_WM_PID,
_NET_WM_STATE,
_NET_WM_STATE_STICKY,
_NET_WM_STATE_SKIP_TASKBAR,
_NET_WM_STATE_FULLSCREEN,
_NET_WM_STATE_MAXIMIZED_HORZ,
_NET_WM_STATE_MAXIMIZED_VERT,
_NET_WM_STATE_ABOVE,
_NET_WM_STATE_BELOW,
_NET_WM_STATE_MODAL,
_NET_WM_STATE_HIDDEN,
_NET_WM_STATE_DEMANDS_ATTENTION
};
int i;
xcb_change_property(globalconf.connection, XCB_PROP_MODE_REPLACE,
xscreen->root, _NET_SUPPORTED, XCB_ATOM_ATOM, 32,
countof(atom), atom);
/* create our own window */
father = xcb_generate_id(globalconf.connection);
xcb_create_window(globalconf.connection, xscreen->root_depth,
father, xscreen->root, -1, -1, 1, 1, 0,
XCB_COPY_FROM_PARENT, xscreen->root_visual, 0, NULL);
xcb_change_property(globalconf.connection, XCB_PROP_MODE_REPLACE,
xscreen->root, _NET_SUPPORTING_WM_CHECK, XCB_ATOM_WINDOW, 32,
1, &father);
xcb_change_property(globalconf.connection, XCB_PROP_MODE_REPLACE,
father, _NET_SUPPORTING_WM_CHECK, XCB_ATOM_WINDOW, 32,
1, &father);
/* set the window manager name */
xcb_change_property(globalconf.connection, XCB_PROP_MODE_REPLACE,
father, _NET_WM_NAME, UTF8_STRING, 8, 7, "awesome");
/* Set an instance, just because we can */
xwindow_set_class_instance(father);
/* set the window manager PID */
i = getpid();
xcb_change_property(globalconf.connection, XCB_PROP_MODE_REPLACE,
father, _NET_WM_PID, XCB_ATOM_CARDINAL, 32, 1, &i);
}
static void
ewmh_update_maximize(bool h, bool status, bool toggle)
{
lua_State *L = globalconf_get_lua_State();
if (h)
lua_pushstring(L, "client_maximize_horizontal");
else
lua_pushstring(L, "client_maximize_vertical");
/* Create table argument with raise=true. */
lua_newtable(L);
lua_pushstring(L, "toggle");
lua_pushboolean(L, toggle);
lua_settable(L, -3);
lua_pushstring(L, "status");
lua_pushboolean(L, status);
lua_settable(L, -3);
luaA_object_emit_signal(L, -3, "request::geometry", 2);
}
void
ewmh_init_lua(void)
{
lua_State *L = globalconf_get_lua_State();
luaA_class_connect_signal(L, &client_class, "focus", ewmh_update_net_active_window);
luaA_class_connect_signal(L, &client_class, "unfocus", ewmh_update_net_active_window);
luaA_class_connect_signal(L, &client_class, "manage", ewmh_update_net_client_list);
luaA_class_connect_signal(L, &client_class, "unmanage", ewmh_update_net_client_list);
luaA_class_connect_signal(L, &client_class, "property::modal" , ewmh_client_update_hints);
luaA_class_connect_signal(L, &client_class, "property::fullscreen" , ewmh_client_update_hints);
luaA_class_connect_signal(L, &client_class, "property::maximized_horizontal" , ewmh_client_update_hints);
luaA_class_connect_signal(L, &client_class, "property::maximized_vertical" , ewmh_client_update_hints);
luaA_class_connect_signal(L, &client_class, "property::maximized" , ewmh_client_update_hints);
luaA_class_connect_signal(L, &client_class, "property::sticky" , ewmh_client_update_hints);
luaA_class_connect_signal(L, &client_class, "property::skip_taskbar" , ewmh_client_update_hints);
luaA_class_connect_signal(L, &client_class, "property::above" , ewmh_client_update_hints);
luaA_class_connect_signal(L, &client_class, "property::below" , ewmh_client_update_hints);
luaA_class_connect_signal(L, &client_class, "property::minimized" , ewmh_client_update_hints);
luaA_class_connect_signal(L, &client_class, "property::urgent" , ewmh_client_update_hints);
luaA_class_connect_signal(L, &client_class, "property::titlebar_top" , ewmh_client_update_frame_extents);
luaA_class_connect_signal(L, &client_class, "property::titlebar_bottom" , ewmh_client_update_frame_extents);
luaA_class_connect_signal(L, &client_class, "property::titlebar_right" , ewmh_client_update_frame_extents);
luaA_class_connect_signal(L, &client_class, "property::titlebar_left" , ewmh_client_update_frame_extents);
luaA_class_connect_signal(L, &client_class, "property::border_width" , ewmh_client_update_frame_extents);
luaA_class_connect_signal(L, &client_class, "manage", ewmh_client_update_frame_extents);
/* NET_CURRENT_DESKTOP handling */
luaA_class_connect_signal(L, &client_class, "focus", ewmh_update_net_current_desktop);
luaA_class_connect_signal(L, &client_class, "unfocus", ewmh_update_net_current_desktop);
luaA_class_connect_signal(L, &client_class, "tagged", ewmh_update_net_current_desktop);
luaA_class_connect_signal(L, &client_class, "untagged", ewmh_update_net_current_desktop);
luaA_class_connect_signal(L, &tag_class, "property::selected", ewmh_update_net_current_desktop);
}
/** Set the client list in stacking order, bottom to top.
*/
void
ewmh_update_net_client_list_stacking(void)
{
int n = 0;
xcb_window_t *wins = p_alloca(xcb_window_t, globalconf.stack.len);
foreach(client, globalconf.stack)
wins[n++] = (*client)->window;
xcb_change_property(globalconf.connection, XCB_PROP_MODE_REPLACE,
globalconf.screen->root,
_NET_CLIENT_LIST_STACKING, XCB_ATOM_WINDOW, 32, n, wins);
}
void
ewmh_update_net_numbers_of_desktop(void)
{
uint32_t count = globalconf.tags.len;
xcb_change_property(globalconf.connection, XCB_PROP_MODE_REPLACE,
globalconf.screen->root,
_NET_NUMBER_OF_DESKTOPS, XCB_ATOM_CARDINAL, 32, 1, &count);
}
int
ewmh_update_net_current_desktop(lua_State *L)
{
uint32_t idx = tags_get_current_or_first_selected_index();
xcb_change_property(globalconf.connection, XCB_PROP_MODE_REPLACE,
globalconf.screen->root,
_NET_CURRENT_DESKTOP, XCB_ATOM_CARDINAL, 32, 1, &idx);
return 0;
}
void
ewmh_update_net_desktop_names(void)
{
buffer_t buf;
buffer_inita(&buf, BUFSIZ);
foreach(tag, globalconf.tags)
{
buffer_adds(&buf, tag_get_name(*tag));
buffer_addc(&buf, '\0');
}
xcb_change_property(globalconf.connection, XCB_PROP_MODE_REPLACE,
globalconf.screen->root,
_NET_DESKTOP_NAMES, UTF8_STRING, 8, buf.len, buf.s);
buffer_wipe(&buf);
}
static void
ewmh_process_state_atom(client_t *c, xcb_atom_t state, int set)
{
lua_State *L = globalconf_get_lua_State();
luaA_object_push(L, c);
if(state == _NET_WM_STATE_STICKY)
{
if(set == _NET_WM_STATE_REMOVE)
client_set_sticky(L, -1, false);
else if(set == _NET_WM_STATE_ADD)
client_set_sticky(L, -1, true);
else if(set == _NET_WM_STATE_TOGGLE)
client_set_sticky(L, -1, !c->sticky);
}
else if(state == _NET_WM_STATE_SKIP_TASKBAR)
{
if(set == _NET_WM_STATE_REMOVE)
client_set_skip_taskbar(L, -1, false);
else if(set == _NET_WM_STATE_ADD)
client_set_skip_taskbar(L, -1, true);
else if(set == _NET_WM_STATE_TOGGLE)
client_set_skip_taskbar(L, -1, !c->skip_taskbar);
}
else if(state == _NET_WM_STATE_FULLSCREEN)
{
if(set == _NET_WM_STATE_REMOVE)
client_set_fullscreen(L, -1, false);
else if(set == _NET_WM_STATE_ADD)
client_set_fullscreen(L, -1, true);
else if(set == _NET_WM_STATE_TOGGLE)
client_set_fullscreen(L, -1, !c->fullscreen);
}
else if(state == _NET_WM_STATE_MAXIMIZED_HORZ)
{
if(set == _NET_WM_STATE_REMOVE)
ewmh_update_maximize(true, false, false);
else if(set == _NET_WM_STATE_ADD)
ewmh_update_maximize(true, true, false);
else if(set == _NET_WM_STATE_TOGGLE)
ewmh_update_maximize(true, false, true);
}
else if(state == _NET_WM_STATE_MAXIMIZED_VERT)
{
if(set == _NET_WM_STATE_REMOVE)
ewmh_update_maximize(false, false, false);
else if(set == _NET_WM_STATE_ADD)
ewmh_update_maximize(false, true, false);
else if(set == _NET_WM_STATE_TOGGLE)
ewmh_update_maximize(false, false, true);
}
else if(state == _NET_WM_STATE_ABOVE)
{
if(set == _NET_WM_STATE_REMOVE)
client_set_above(L, -1, false);
else if(set == _NET_WM_STATE_ADD)
client_set_above(L, -1, true);
else if(set == _NET_WM_STATE_TOGGLE)
client_set_above(L, -1, !c->above);
}
else if(state == _NET_WM_STATE_BELOW)
{
if(set == _NET_WM_STATE_REMOVE)
client_set_below(L, -1, false);
else if(set == _NET_WM_STATE_ADD)
client_set_below(L, -1, true);
else if(set == _NET_WM_STATE_TOGGLE)
client_set_below(L, -1, !c->below);
}
else if(state == _NET_WM_STATE_MODAL)
{
if(set == _NET_WM_STATE_REMOVE)
client_set_modal(L, -1, false);
else if(set == _NET_WM_STATE_ADD)
client_set_modal(L, -1, true);
else if(set == _NET_WM_STATE_TOGGLE)
client_set_modal(L, -1, !c->modal);
}
else if(state == _NET_WM_STATE_HIDDEN)
{
if(set == _NET_WM_STATE_REMOVE)
client_set_minimized(L, -1, false);
else if(set == _NET_WM_STATE_ADD)
client_set_minimized(L, -1, true);
else if(set == _NET_WM_STATE_TOGGLE)
client_set_minimized(L, -1, !c->minimized);
}
else if(state == _NET_WM_STATE_DEMANDS_ATTENTION)
{
if(set == _NET_WM_STATE_REMOVE) {
lua_pushboolean(L, false);
luaA_object_emit_signal(L, -2, "request::urgent", 1);
}
else if(set == _NET_WM_STATE_ADD) {
lua_pushboolean(L, true);
luaA_object_emit_signal(L, -2, "request::urgent", 1);
}
else if(set == _NET_WM_STATE_TOGGLE) {
lua_pushboolean(L, !c->urgent);
luaA_object_emit_signal(L, -2, "request::urgent", 1);
}
}
lua_pop(L, 1);
}
static void
ewmh_process_desktop(client_t *c, uint32_t desktop)
{
lua_State *L = globalconf_get_lua_State();
int idx = desktop;
if(desktop == ALL_DESKTOPS)
{
luaA_object_push(L, c);
lua_pushboolean(L, true);
luaA_object_emit_signal(L, -2, "request::tag", 1);
/* Pop the client, arguments are already popped */
lua_pop(L, 1);
}
else if (idx >= 0 && idx < globalconf.tags.len)
{
luaA_object_push(L, c);
luaA_object_push(L, globalconf.tags.tab[idx]);
luaA_object_emit_signal(L, -2, "request::tag", 1);
/* Pop the client, arguments are already popped */
lua_pop(L, 1);
}
}
int
ewmh_process_client_message(xcb_client_message_event_t *ev)
{
client_t *c;
if(ev->type == _NET_CURRENT_DESKTOP)
{
int idx = ev->data.data32[0];
if (idx >= 0 && idx < globalconf.tags.len)
{
lua_State *L = globalconf_get_lua_State();
luaA_object_push(L, globalconf.tags.tab[idx]);
luaA_object_emit_signal(L, -1, "request::select", 0);
lua_pop(L, 1);
}
}
else if(ev->type == _NET_CLOSE_WINDOW)
{
if((c = client_getbywin(ev->window)))
client_kill(c);
}
else if(ev->type == _NET_WM_DESKTOP)
{
if((c = client_getbywin(ev->window)))
{
ewmh_process_desktop(c, ev->data.data32[0]);
}
}
else if(ev->type == _NET_WM_STATE)
{
if((c = client_getbywin(ev->window)))
{
ewmh_process_state_atom(c, (xcb_atom_t) ev->data.data32[1], ev->data.data32[0]);
if(ev->data.data32[2])
ewmh_process_state_atom(c, (xcb_atom_t) ev->data.data32[2],
ev->data.data32[0]);
}
}
else if(ev->type == _NET_ACTIVE_WINDOW)
{
if((c = client_getbywin(ev->window))) {
lua_State *L = globalconf_get_lua_State();
luaA_object_push(L, c);
lua_pushstring(L, "ewmh");
/* Create table argument with raise=true. */
lua_newtable(L);
lua_pushstring(L, "raise");
lua_pushboolean(L, true);
lua_settable(L, -3);
luaA_object_emit_signal(L, -3, "request::activate", 2);
lua_pop(L, 1);
}
}
return 0;
}
/** Update the client active desktop.
* This is "wrong" since it can be on several tags, but EWMH has a strict view
* of desktop system so just take the first tag.
* \param c The client.
*/
void
ewmh_client_update_desktop(client_t *c)
{
int i;
if(c->sticky)
{
xcb_change_property(globalconf.connection, XCB_PROP_MODE_REPLACE,
c->window, _NET_WM_DESKTOP, XCB_ATOM_CARDINAL, 32, 1,
(uint32_t[]) { ALL_DESKTOPS });
return;
}
for(i = 0; i < globalconf.tags.len; i++)
if(is_client_tagged(c, globalconf.tags.tab[i]))
{
xcb_change_property(globalconf.connection, XCB_PROP_MODE_REPLACE,
c->window, _NET_WM_DESKTOP, XCB_ATOM_CARDINAL, 32, 1, &i);
return;
}
/* It doesn't have any tags, remove the property */
xcb_delete_property(globalconf.connection, c->window, _NET_WM_DESKTOP);
}
/** Update the client struts.
* \param window The window to update the struts for.
* \param strut The strut type to update the window with.
*/
void
ewmh_update_strut(xcb_window_t window, strut_t *strut)
{
if(window)
{
const uint32_t state[] =
{
strut->left,
strut->right,
strut->top,
strut->bottom,
strut->left_start_y,
strut->left_end_y,
strut->right_start_y,
strut->right_end_y,
strut->top_start_x,
strut->top_end_x,
strut->bottom_start_x,
strut->bottom_end_x
};
xcb_change_property(globalconf.connection, XCB_PROP_MODE_REPLACE,
window, _NET_WM_STRUT_PARTIAL, XCB_ATOM_CARDINAL, 32, countof(state), state);
}
}
/** Update the window type.
* \param window The window to update.
* \param type The new type to set.
*/
void
ewmh_update_window_type(xcb_window_t window, uint32_t type)
{
xcb_change_property(globalconf.connection, XCB_PROP_MODE_REPLACE,
window, _NET_WM_WINDOW_TYPE, XCB_ATOM_ATOM, 32, 1, &type);
}
void
ewmh_client_check_hints(client_t *c)
{
xcb_atom_t *state;
void *data = NULL;
xcb_get_property_cookie_t c0, c1, c2;
xcb_get_property_reply_t *reply;
bool is_h_max = false;
bool is_v_max = false;
/* Send the GetProperty requests which will be processed later */
c0 = xcb_get_property_unchecked(globalconf.connection, false, c->window,
_NET_WM_DESKTOP, XCB_GET_PROPERTY_TYPE_ANY, 0, 1);
c1 = xcb_get_property_unchecked(globalconf.connection, false, c->window,
_NET_WM_STATE, XCB_ATOM_ATOM, 0, UINT32_MAX);
c2 = xcb_get_property_unchecked(globalconf.connection, false, c->window,
_NET_WM_WINDOW_TYPE, XCB_ATOM_ATOM, 0, UINT32_MAX);
reply = xcb_get_property_reply(globalconf.connection, c0, NULL);
if(reply && reply->value_len && (data = xcb_get_property_value(reply)))
{
ewmh_process_desktop(c, *(uint32_t *) data);
}
p_delete(&reply);
reply = xcb_get_property_reply(globalconf.connection, c1, NULL);
if(reply && (data = xcb_get_property_value(reply)))
{
state = (xcb_atom_t *) data;
for(int i = 0; i < xcb_get_property_value_length(reply) / ssizeof(xcb_atom_t); i++)
if (state[i] == _NET_WM_STATE_MAXIMIZED_HORZ)
is_h_max = true;
else if (state[i] == _NET_WM_STATE_MAXIMIZED_VERT)
is_v_max = true;
else
ewmh_process_state_atom(c, state[i], _NET_WM_STATE_ADD);
}
/* Check maximization manually */
if (is_h_max && is_v_max) {
lua_State *L = globalconf_get_lua_State();
luaA_object_push(L, c);
client_set_maximized(L, -1, true);
lua_pop(L, 1);
}
else if(is_h_max)
{
lua_State *L = globalconf_get_lua_State();
luaA_object_push(L, c);
client_set_maximized_horizontal(L, -1, true);
lua_pop(L, 1);
}
else if(is_v_max)
{
lua_State *L = globalconf_get_lua_State();
luaA_object_push(L, c);
client_set_maximized_vertical(L, -1, true);
lua_pop(L, 1);
}
p_delete(&reply);
reply = xcb_get_property_reply(globalconf.connection, c2, NULL);
if(reply && (data = xcb_get_property_value(reply)))
{
c->has_NET_WM_WINDOW_TYPE = true;
state = (xcb_atom_t *) data;
for(int i = 0; i < xcb_get_property_value_length(reply) / ssizeof(xcb_atom_t); i++)
if(state[i] == _NET_WM_WINDOW_TYPE_DESKTOP)
c->type = MAX(c->type, WINDOW_TYPE_DESKTOP);
else if(state[i] == _NET_WM_WINDOW_TYPE_DIALOG)
c->type = MAX(c->type, WINDOW_TYPE_DIALOG);
else if(state[i] == _NET_WM_WINDOW_TYPE_SPLASH)
c->type = MAX(c->type, WINDOW_TYPE_SPLASH);
else if(state[i] == _NET_WM_WINDOW_TYPE_DOCK)
c->type = MAX(c->type, WINDOW_TYPE_DOCK);
else if(state[i] == _NET_WM_WINDOW_TYPE_MENU)
c->type = MAX(c->type, WINDOW_TYPE_MENU);
else if(state[i] == _NET_WM_WINDOW_TYPE_TOOLBAR)
c->type = MAX(c->type, WINDOW_TYPE_TOOLBAR);
else if(state[i] == _NET_WM_WINDOW_TYPE_UTILITY)
c->type = MAX(c->type, WINDOW_TYPE_UTILITY);
} else
c->has_NET_WM_WINDOW_TYPE = false;
p_delete(&reply);
}
/** Process the WM strut of a client.
* \param c The client.
*/
void
ewmh_process_client_strut(client_t *c)
{
void *data;
xcb_get_property_reply_t *strut_r;
xcb_get_property_cookie_t strut_q = xcb_get_property_unchecked(globalconf.connection, false, c->window,
_NET_WM_STRUT_PARTIAL, XCB_ATOM_CARDINAL, 0, 12);
strut_r = xcb_get_property_reply(globalconf.connection, strut_q, NULL);
if(strut_r
&& strut_r->value_len
&& (data = xcb_get_property_value(strut_r)))
{
uint32_t *strut = data;
if(c->strut.left != strut[0]
|| c->strut.right != strut[1]
|| c->strut.top != strut[2]
|| c->strut.bottom != strut[3]
|| c->strut.left_start_y != strut[4]
|| c->strut.left_end_y != strut[5]
|| c->strut.right_start_y != strut[6]
|| c->strut.right_end_y != strut[7]
|| c->strut.top_start_x != strut[8]
|| c->strut.top_end_x != strut[9]
|| c->strut.bottom_start_x != strut[10]
|| c->strut.bottom_end_x != strut[11])
{
c->strut.left = strut[0];
c->strut.right = strut[1];
c->strut.top = strut[2];
c->strut.bottom = strut[3];
c->strut.left_start_y = strut[4];
c->strut.left_end_y = strut[5];
c->strut.right_start_y = strut[6];
c->strut.right_end_y = strut[7];
c->strut.top_start_x = strut[8];
c->strut.top_end_x = strut[9];
c->strut.bottom_start_x = strut[10];
c->strut.bottom_end_x = strut[11];
lua_State *L = globalconf_get_lua_State();
luaA_object_push(L, c);
luaA_object_emit_signal(L, -1, "property::struts", 0);
lua_pop(L, 1);
}
}
p_delete(&strut_r);
}
/** Send request to get NET_WM_ICON (EWMH)
* \param w The window.
* \return The cookie associated with the request.
*/
xcb_get_property_cookie_t
ewmh_window_icon_get_unchecked(xcb_window_t w)
{
return xcb_get_property_unchecked(globalconf.connection, false, w,
_NET_WM_ICON, XCB_ATOM_CARDINAL, 0, UINT32_MAX);
}
static cairo_surface_t *
ewmh_window_icon_from_reply_next(uint32_t **data, uint32_t *data_end)
{
uint32_t width, height;
uint64_t data_len;
uint32_t *icon_data;
if(data_end - *data <= 2)
return NULL;
width = (*data)[0];
height = (*data)[1];
/* Check that we have enough data, handling overflow */
data_len = width * (uint64_t) height;
if (width < 1 || height < 1 || data_len > (uint64_t) (data_end - *data) - 2)
return NULL;
icon_data = *data + 2;
*data += 2 + data_len;
return draw_surface_from_data(width, height, icon_data);
}
static cairo_surface_array_t
ewmh_window_icon_from_reply(xcb_get_property_reply_t *r)
{
uint32_t *data, *data_end;
cairo_surface_array_t result;
cairo_surface_t *s;
cairo_surface_array_init(&result);
if(!r || r->type != XCB_ATOM_CARDINAL || r->format != 32)
return result;
data = (uint32_t*) xcb_get_property_value(r);
data_end = &data[r->length];
if(!data)
return result;
while ((s = ewmh_window_icon_from_reply_next(&data, data_end)) != NULL) {
cairo_surface_array_push(&result, s);
}
return result;
}
/** Get NET_WM_ICON.
* \param cookie The cookie.
* \return An array of icons.
*/
cairo_surface_array_t
ewmh_window_icon_get_reply(xcb_get_property_cookie_t cookie)
{
xcb_get_property_reply_t *r = xcb_get_property_reply(globalconf.connection, cookie, NULL);
cairo_surface_array_t result = ewmh_window_icon_from_reply(r);
p_delete(&r);
return result;
}
// vim: filetype=c:expandtab:shiftwidth=4:tabstop=8:softtabstop=4:textwidth=80
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