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awesome/event.c

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/*
* event.c - event handlers
*
* Copyright © 2007-2008 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 <xcb/xcb_keysyms.h>
#include <xcb/xcb_atom.h>
#include <xcb/xcb_aux.h>
#include "screen.h"
#include "event.h"
#include "tag.h"
#include "statusbar.h"
#include "window.h"
#include "mouse.h"
#include "ewmh.h"
#include "client.h"
#include "widget.h"
#include "titlebar.h"
#include "keygrabber.h"
#include "lua.h"
#include "layouts/floating.h"
#include "common/xscreen.h"
#include "common/xutil.h"
extern awesome_t globalconf;
/** Handle mouse button click
* \param screen screen number
* \param button button number
* \param state modkeys state
* \param buttons buttons list to check for
*/
static void
event_handle_mouse_button_press(client_t *c,
unsigned int button,
unsigned int state,
button_t *buttons)
{
button_t *b;
for(b = buttons; b; b = b->next)
if(button == b->button && CLEANMASK(state) == b->mod && b->fct)
{
if(c)
{
luaA_client_userdata_new(c);
luaA_dofunction(globalconf.L, b->fct, 1);
}
else
luaA_dofunction(globalconf.L, b->fct, 0);
}
}
/** Handle XButtonPressed events
* \param connection connection to the X server
* \param ev ButtonPress event
*/
int
event_handle_buttonpress(void *data __attribute__ ((unused)),
xcb_connection_t *connection, xcb_button_press_event_t *ev)
{
int screen, tmp;
const int nb_screen = xcb_setup_roots_length(xcb_get_setup(connection));
client_t *c;
widget_node_t *w;
statusbar_t *statusbar;
for(screen = 0; screen < globalconf.screens_info->nscreen; screen++)
for(statusbar = globalconf.screens[screen].statusbar; statusbar; statusbar = statusbar->next)
if(statusbar->sw
&& (statusbar->sw->window == ev->event || statusbar->sw->window == ev->child))
{
/* If the statusbar is child, then x,y are
* relative to root window */
if(statusbar->sw->window == ev->child)
{
ev->event_x -= statusbar->sw->geometry.x;
ev->event_y -= statusbar->sw->geometry.y;
}
/* Need to transform coordinates like it was
* top/bottom */
switch(statusbar->position)
{
case Right:
tmp = ev->event_y;
ev->event_y = statusbar->height - ev->event_x;
ev->event_x = tmp;
break;
case Left:
tmp = ev->event_y;
ev->event_y = ev->event_x;
ev->event_x = statusbar->width - tmp;
break;
default:
break;
}
for(w = statusbar->widgets; w; w = w->next)
if(ev->event_x >= w->area.x && ev->event_x < w->area.x + w->area.width
&& ev->event_y >= w->area.y && ev->event_y < w->area.y + w->area.height)
{
w->widget->button_press(w, ev, statusbar->screen,
statusbar, AWESOME_TYPE_STATUSBAR);
return 0;
}
/* return if no widget match */
return 0;
}
if((c = client_getbytitlebarwin(ev->event)))
{
/* Need to transform coordinates like it was
* top/bottom */
switch(c->titlebar->position)
{
case Right:
tmp = ev->event_y;
ev->event_y = c->titlebar->height - ev->event_x;
ev->event_x = tmp;
break;
case Left:
tmp = ev->event_y;
ev->event_y = ev->event_x;
ev->event_x = c->titlebar->width - tmp;
break;
default:
break;
}
for(w = c->titlebar->widgets; w; w = w->next)
if(ev->event_x >= w->area.x && ev->event_x < w->area.x + w->area.width
&& ev->event_y >= w->area.y && ev->event_y < w->area.y + w->area.height)
{
w->widget->button_press(w, ev, c->screen,
c->titlebar, AWESOME_TYPE_TITLEBAR);
return 0;
}
/* return if no widget match */
return 0;
}
if((c = client_getbywin(ev->event)))
{
event_handle_mouse_button_press(c, ev->detail, ev->state, globalconf.buttons.client);
xcb_allow_events(globalconf.connection, XCB_ALLOW_REPLAY_POINTER, XCB_CURRENT_TIME);
}
else
for(screen = 0; screen < nb_screen; screen++)
if(xcb_aux_get_screen(connection, screen)->root == ev->event)
{
event_handle_mouse_button_press(NULL, ev->detail, ev->state,
globalconf.buttons.root);
return 0;
}
return 0;
}
/** Handle XConfigureRequest events
* \param connection connection to the X server
* \param ev ConfigureRequest event
*/
int
event_handle_configurerequest(void *data __attribute__ ((unused)),
xcb_connection_t *connection, xcb_configure_request_event_t *ev)
{
client_t *c;
area_t geometry;
if((c = client_getbywin(ev->window)))
{
geometry = c->geometry;
if(ev->value_mask & XCB_CONFIG_WINDOW_X)
geometry.x = ev->x;
if(ev->value_mask & XCB_CONFIG_WINDOW_Y)
geometry.y = ev->y;
if(ev->value_mask & XCB_CONFIG_WINDOW_WIDTH)
geometry.width = ev->width;
if(ev->value_mask & XCB_CONFIG_WINDOW_HEIGHT)
geometry.height = ev->height;
if(geometry.x != c->geometry.x || geometry.y != c->geometry.y
|| geometry.width != c->geometry.width || geometry.height != c->geometry.height)
{
if(c->isfloating || layout_get_current(c->screen) == layout_floating)
client_resize(c, geometry, false);
else
{
globalconf.screens[c->screen].need_arrange = true;
/* If we do not resize the client, at least tell it that it
* has its new configuration. That fixes at least
* gnome-terminal */
window_configure(c->win, c->geometry, c->border);
}
}
else
{
titlebar_update_geometry_floating(c);
window_configure(c->win, geometry, c->border);
}
}
else
{
uint16_t config_win_mask = 0;
uint32_t config_win_vals[7];
unsigned short i = 0;
if(ev->value_mask & XCB_CONFIG_WINDOW_X)
{
config_win_mask |= XCB_CONFIG_WINDOW_X;
config_win_vals[i++] = ev->x;
}
if(ev->value_mask & XCB_CONFIG_WINDOW_Y)
{
config_win_mask |= XCB_CONFIG_WINDOW_Y;
config_win_vals[i++] = ev->y;
}
if(ev->value_mask & XCB_CONFIG_WINDOW_WIDTH)
{
config_win_mask |= XCB_CONFIG_WINDOW_WIDTH;
config_win_vals[i++] = ev->width;
}
if(ev->value_mask & XCB_CONFIG_WINDOW_HEIGHT)
{
config_win_mask |= XCB_CONFIG_WINDOW_HEIGHT;
config_win_vals[i++] = ev->height;
}
if(ev->value_mask & XCB_CONFIG_WINDOW_BORDER_WIDTH)
{
config_win_mask |= XCB_CONFIG_WINDOW_BORDER_WIDTH;
config_win_vals[i++] = ev->border_width;
}
if(ev->value_mask & XCB_CONFIG_WINDOW_SIBLING)
{
config_win_mask |= XCB_CONFIG_WINDOW_SIBLING;
config_win_vals[i++] = ev->sibling;
}
if(ev->value_mask & XCB_CONFIG_WINDOW_STACK_MODE)
{
config_win_mask |= XCB_CONFIG_WINDOW_STACK_MODE;
config_win_vals[i++] = ev->stack_mode;
}
xcb_configure_window(connection, ev->window, config_win_mask, config_win_vals);
}
return 0;
}
/** Handle XConfigure events
* \param connection connection to the X server
* \param ev ConfigureNotify event
*/
int
event_handle_configurenotify(void *data __attribute__ ((unused)),
xcb_connection_t *connection, xcb_configure_notify_event_t *ev)
{
int screen_nbr;
const xcb_screen_t *screen;
for(screen_nbr = 0; screen_nbr < xcb_setup_roots_length(xcb_get_setup (connection)); screen_nbr++)
if((screen = xcb_aux_get_screen(connection, screen_nbr)) != NULL
&& ev->window == screen->root
&& (ev->width != screen->width_in_pixels
|| ev->height != screen->height_in_pixels))
/* it's not that we panic, but restart */
a_exec(globalconf.argv);
return 0;
}
/** Handle XDestroyWindow events
* \param connection connection to the X server
* \param ev DestroyNotify event
*/
int
event_handle_destroynotify(void *data __attribute__ ((unused)),
xcb_connection_t *connection __attribute__ ((unused)),
xcb_destroy_notify_event_t *ev)
{
client_t *c;
if((c = client_getbywin(ev->window)))
client_unmanage(c);
return 0;
}
/** Handle XCrossing events
* \param connection connection to the X server
* \param ev Crossing event
*/
int
event_handle_enternotify(void *data __attribute__ ((unused)),
xcb_connection_t *connection __attribute__ ((unused)),
xcb_enter_notify_event_t *ev)
{
client_t *c = NULL;
if(ev->mode != XCB_NOTIFY_MODE_NORMAL
|| (ev->root_x == globalconf.pointer_x
&& ev->root_y == globalconf.pointer_y))
return 0;
if((c = client_getbytitlebarwin(ev->event))
|| (c = client_getbywin(ev->event)))
{
window_grabbuttons(c->win, c->phys_screen);
/* the idea behind saving pointer_x and pointer_y is Bob Marley powered
* this will allow us top drop some EnterNotify events and thus not giving
* focus to windows appering under the cursor without a cursor move */
globalconf.pointer_x = ev->root_x;
globalconf.pointer_y = ev->root_y;
luaA_client_userdata_new(c);
luaA_dofunction(globalconf.L, globalconf.hooks.mouseover, 1);
}
else
window_root_grabbuttons();
return 0;
}
/** Handle XExpose events
* \param ev Expose event
*/
int
event_handle_expose(void *data __attribute__ ((unused)),
xcb_connection_t *connection __attribute__ ((unused)),
xcb_expose_event_t *ev)
{
int screen;
statusbar_t *statusbar;
client_t *c;
if(!ev->count)
{
for(screen = 0; screen < globalconf.screens_info->nscreen; screen++)
for(statusbar = globalconf.screens[screen].statusbar; statusbar; statusbar = statusbar->next)
if(statusbar->sw
&& statusbar->sw->window == ev->window)
{
simplewindow_refresh_pixmap(statusbar->sw);
return 0;
}
if((c = client_getbytitlebarwin(ev->window)))
simplewindow_refresh_pixmap(c->titlebar->sw);
}
return 0;
}
/** Handle XKey events
* \param connection connection to the X server
* \param ev KeyPress event
*/
int
event_handle_keypress(void *data __attribute__ ((unused)),
xcb_connection_t *connection __attribute__ ((unused)),
xcb_key_press_event_t *ev)
{
xcb_keysym_t keysym;
keybinding_t *k;
if(globalconf.keygrabber != LUA_REFNIL)
{
lua_rawgeti(globalconf.L, LUA_REGISTRYINDEX, globalconf.keygrabber);
if(keygrabber_handlekpress(globalconf.L, ev))
{
if(lua_pcall(globalconf.L, 2, 1, 0))
{
warn("error running function: %s", lua_tostring(globalconf.L, -1));
keygrabber_ungrab();
}
else if(!lua_isboolean(globalconf.L, -1) || !lua_toboolean(globalconf.L, -1))
keygrabber_ungrab();
}
lua_pop(globalconf.L, 1); /* pop returned value or function if not called */
}
else
{
keysym = xcb_key_symbols_get_keysym(globalconf.keysyms, ev->detail, 0);
for(k = globalconf.keys; k; k = k->next)
if(((k->keycode && ev->detail == k->keycode) || (k->keysym && keysym == k->keysym))
&& k->fct && CLEANMASK(k->mod) == CLEANMASK(ev->state))
luaA_dofunction(globalconf.L, k->fct, 0);
}
return 0;
}
/** Handle XMapRequest events
* \param connection connection to the X server
* \param ev MapRequest event
*/
int
event_handle_maprequest(void *data __attribute__ ((unused)),
xcb_connection_t *connection, xcb_map_request_event_t *ev)
{
int screen_nbr = 0;
client_t *c;
xcb_get_window_attributes_cookie_t wa_c;
xcb_get_window_attributes_reply_t *wa_r;
xcb_query_pointer_cookie_t qp_c = { 0 };
xcb_query_pointer_reply_t *qp_r = NULL;
xcb_get_geometry_cookie_t geom_c;
xcb_get_geometry_reply_t *geom_r;
xcb_screen_iterator_t iter;
wa_c = xcb_get_window_attributes(connection, ev->window);
if(!(wa_r = xcb_get_window_attributes_reply(connection, wa_c, NULL)))
return -1;
if(wa_r->override_redirect)
goto bailout;
if(!(c = client_getbywin(ev->window)))
{
geom_c = xcb_get_geometry(connection, ev->window);
if(globalconf.screens_info->xinerama_is_active)
qp_c = xcb_query_pointer(connection, xcb_aux_get_screen(globalconf.connection,
screen_nbr)->root);
if(!(geom_r = xcb_get_geometry_reply(connection, geom_c, NULL)))
{
if(globalconf.screens_info->xinerama_is_active)
{
qp_r = xcb_query_pointer_reply(connection, qp_c, NULL);
p_delete(&qp_r);
}
return -1;
}
if(globalconf.screens_info->xinerama_is_active
&& (qp_r = xcb_query_pointer_reply(connection, qp_c, NULL)))
{
screen_nbr = screen_get_bycoord(globalconf.screens_info, screen_nbr,
qp_r->root_x, qp_r->root_y);
p_delete(&qp_r);
}
else
for(iter = xcb_setup_roots_iterator(xcb_get_setup(connection)), screen_nbr = 0;
iter.rem && iter.data->root != geom_r->root; xcb_screen_next (&iter), ++screen_nbr);
client_manage(ev->window, geom_r, screen_nbr);
p_delete(&geom_r);
}
bailout:
p_delete(&wa_r);
return 0;
}
/** Handle XProperty events
* \param connection connection to the X server
* \param ev PropertyNotify event
*/
int
event_handle_propertynotify(void *data __attribute__ ((unused)),
xcb_connection_t *connection, xcb_property_notify_event_t *ev)
{
client_t *c;
xcb_window_t trans;
if(ev->state == XCB_PROPERTY_DELETE)
return 0; /* ignore */
if((c = client_getbywin(ev->window)))
{
if(ev->atom == WM_TRANSIENT_FOR)
{
xutil_get_transient_for_hint(connection, c->win, &trans);
if(!c->isfloating
&& (c->isfloating = (client_getbywin(trans) != NULL)))
globalconf.screens[c->screen].need_arrange = true;
}
else if (ev->atom == WM_NORMAL_HINTS)
client_updatesizehints(c);
else if (ev->atom == WM_HINTS)
client_updatewmhints(c);
if(ev->atom == WM_NAME
|| ev->atom == xutil_intern_atom_reply(globalconf.connection, &globalconf.atoms,
xutil_intern_atom(globalconf.connection,
&globalconf.atoms,
"_NET_WM_NAME")))
client_updatetitle(c);
}
return 0;
}
/** Handle XUnmap events
* \param connection connection to the X server
* \param ev UnmapNotify event
*/
int
event_handle_unmapnotify(void *data __attribute__ ((unused)),
xcb_connection_t *connection, xcb_unmap_notify_event_t *ev)
{
client_t *c;
/*
* event->send_event (Xlib) is quivalent to (ev->response_type &
* 0x80) in XCB because the SendEvent bit is available in the
* response_type field
*/
bool send_event = ((ev->response_type & 0x80) >> 7);
if((c = client_getbywin(ev->window))
&& ev->event == xcb_aux_get_screen(connection, c->phys_screen)->root
&& send_event && window_getstate(c->win) == XCB_WM_NORMAL_STATE)
client_unmanage(c);
return 0;
}
/** Handle XShape events
* \param ev Shape event
*/
int
event_handle_shape(void *data __attribute__ ((unused)),
xcb_connection_t *connection __attribute__ ((unused)),
xcb_shape_notify_event_t *ev)
{
client_t *c = client_getbywin(ev->affected_window);
if(c)
window_setshape(c->win, c->phys_screen);
return 0;
}
/** Handle XRandR events
* \param ev RandrScreenChangeNotify event
*/
int
event_handle_randr_screen_change_notify(void *data __attribute__ ((unused)),
xcb_connection_t *connection __attribute__ ((unused)),
xcb_randr_screen_change_notify_event_t *ev)
{
if(!globalconf.have_randr)
return -1;
/* Code of XRRUpdateConfiguration Xlib function ported to XCB
* (only the code relevant to RRScreenChangeNotify) as the latter
* doesn't provide this kind of function */
if(ev->rotation & (XCB_RANDR_ROTATION_ROTATE_90 | XCB_RANDR_ROTATION_ROTATE_270))
xcb_randr_set_screen_size(connection, ev->root, ev->height, ev->width,
ev->mheight, ev->mwidth);
else
xcb_randr_set_screen_size(connection, ev->root, ev->width, ev->height,
ev->mwidth, ev->mheight);
/* XRRUpdateConfiguration also executes the following instruction
* but it's not useful because SubpixelOrder is not used at all at
* the moment
*
* XRenderSetSubpixelOrder(dpy, snum, scevent->subpixel_order);
*/
a_exec(globalconf.argv);
return 0;
}
/** Handle XClientMessage events
* \param ev ClientMessage event
*/
int
event_handle_clientmessage(void *data __attribute__ ((unused)),
xcb_connection_t *connection __attribute__ ((unused)),
xcb_client_message_event_t *ev)
{
ewmh_process_client_message(ev);
return 0;
}
// vim: filetype=c:expandtab:shiftwidth=4:tabstop=8:softtabstop=4:encoding=utf-8:textwidth=80
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