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awesome/event.c
Uli Schlachter e5120e1bec Hide globalconf.L 
Everything that needs the lua_State should create a local variable like this:

  lua_State *L = globalconf_get_lua_State();

This ensures that the compiler warns if there are two variables with name "L" in
scope. The idea here is that it should become harder to accidentally use the
global lua state instead of the state of the current state.

While writing this commit, I found another place that gets its wrong: Reading
client.focus from a coroutine was broken, since it was returning the result on
the main thread instead of the current one.

Signed-off-by: Uli Schlachter <psychon@znc.in>
2014-12-06 11:56:58 +01:00

907 lines
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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 "event.h"
#include "awesome.h"
#include "property.h"
#include "objects/tag.h"
#include "objects/drawin.h"
#include "xwindow.h"
#include "ewmh.h"
#include "objects/client.h"
#include "keyresolv.h"
#include "keygrabber.h"
#include "mousegrabber.h"
#include "luaa.h"
#include "systray.h"
#include "objects/screen.h"
#include "common/atoms.h"
#include "common/xutil.h"
#include <xcb/xcb.h>
#include <xcb/randr.h>
#include <xcb/shape.h>
#include <xcb/xcb_atom.h>
#include <xcb/xcb_icccm.h>
#include <xcb/xcb_event.h>
#define DO_EVENT_HOOK_CALLBACK(type, xcbtype, xcbeventprefix, arraytype, match) \
static void \
event_##xcbtype##_callback(xcb_##xcbtype##_press_event_t *ev, \
arraytype *arr, \
lua_State *L, \
int oud, \
int nargs, \
void *data) \
{ \
int abs_oud = oud < 0 ? ((lua_gettop(L) + 1) + oud) : oud; \
int item_matching = 0; \
foreach(item, *arr) \
if(match(ev, *item, data)) \
{ \
if(oud) \
luaA_object_push_item(L, abs_oud, *item); \
else \
luaA_object_push(L, *item); \
item_matching++; \
} \
for(; item_matching > 0; item_matching--) \
{ \
switch(ev->response_type) \
{ \
case xcbeventprefix##_PRESS: \
for(int i = 0; i < nargs; i++) \
lua_pushvalue(L, - nargs - item_matching); \
luaA_object_emit_signal(L, - nargs - 1, "press", nargs); \
break; \
case xcbeventprefix##_RELEASE: \
for(int i = 0; i < nargs; i++) \
lua_pushvalue(L, - nargs - item_matching); \
luaA_object_emit_signal(L, - nargs - 1, "release", nargs); \
break; \
} \
lua_pop(L, 1); \
} \
lua_pop(L, nargs); \
}
static bool
event_key_match(xcb_key_press_event_t *ev, keyb_t *k, void *data)
{
assert(data);
xcb_keysym_t keysym = *(xcb_keysym_t *) data;
return (((k->keycode && ev->detail == k->keycode)
|| (k->keysym && keysym == k->keysym))
&& (k->modifiers == XCB_BUTTON_MASK_ANY || k->modifiers == ev->state));
}
static bool
event_button_match(xcb_button_press_event_t *ev, button_t *b, void *data)
{
return ((!b->button || ev->detail == b->button)
&& (b->modifiers == XCB_BUTTON_MASK_ANY || b->modifiers == ev->state));
}
DO_EVENT_HOOK_CALLBACK(button_t, button, XCB_BUTTON, button_array_t, event_button_match)
DO_EVENT_HOOK_CALLBACK(keyb_t, key, XCB_KEY, key_array_t, event_key_match)
/** Handle an event with mouse grabber if needed
* \param x The x coordinate.
* \param y The y coordinate.
* \param mask The mask buttons.
* \return True if the event was handled.
*/
static bool
event_handle_mousegrabber(int x, int y, uint16_t mask)
{
if(globalconf.mousegrabber != LUA_REFNIL)
{
lua_State *L = globalconf_get_lua_State();
lua_rawgeti(L, LUA_REGISTRYINDEX, globalconf.mousegrabber);
mousegrabber_handleevent(L, x, y, mask);
if(lua_pcall(L, 1, 1, 0))
{
warn("error running function: %s", lua_tostring(L, -1));
luaA_mousegrabber_stop(L);
}
else if(!lua_isboolean(L, -1) || !lua_toboolean(L, -1))
luaA_mousegrabber_stop(L);
lua_pop(L, 1); /* pop returned value */
return true;
}
return false;
}
/** Emit a button signal.
* The top of the lua stack has to be the object on which to emit the event.
* \param L The Lua VM state.
* \param ev The event to handle.
*/
static void
event_emit_button(lua_State *L, xcb_button_press_event_t *ev)
{
const char *name;
switch(XCB_EVENT_RESPONSE_TYPE(ev))
{
case XCB_BUTTON_PRESS:
name = "button::press";
break;
case XCB_BUTTON_RELEASE:
name = "button::release";
break;
default:
fatal("Invalid event type");
}
/* Push the event's info */
lua_pushnumber(L, ev->event_x);
lua_pushnumber(L, ev->event_y);
lua_pushnumber(L, ev->detail);
luaA_pushmodifiers(L, ev->state);
/* And emit the signal */
luaA_object_emit_signal(L, -5, name, 4);
}
/** The button press event handler.
* \param ev The event.
*/
static void
event_handle_button(xcb_button_press_event_t *ev)
{
lua_State *L = globalconf_get_lua_State();
client_t *c;
drawin_t *drawin;
globalconf.timestamp = ev->time;
if(event_handle_mousegrabber(ev->root_x, ev->root_y, 1 << (ev->detail - 1 + 8)))
return;
/* ev->state is
* button status (8 bits) + modifiers status (8 bits)
* we don't care for button status that we get, especially on release, so
* drop them */
ev->state &= 0x00ff;
if((drawin = drawin_getbywin(ev->event))
|| (drawin = drawin_getbywin(ev->child)))
{
/* If the drawin is child, then x,y are
* relative to root window */
if(drawin->window == ev->child)
{
ev->event_x -= drawin->geometry.x + drawin->border_width;
ev->event_y -= drawin->geometry.y + drawin->border_width;
}
/* Push the drawable */
luaA_object_push(L, drawin);
luaA_object_push_item(L, -1, drawin->drawable);
/* and handle the button raw button event */
event_emit_button(L, ev);
lua_pop(L, 1);
/* check if any button object matches */
event_button_callback(ev, &drawin->buttons, L, -1, 1, NULL);
/* Either we are receiving this due to ButtonPress/Release on the root
* window or because we grabbed the button on the window. In the later
* case we have to call AllowEvents.
* Use AsyncPointer instead of ReplayPointer so that the event is
* "eaten" instead of being handled again on the root window.
*/
if(ev->child == XCB_NONE)
xcb_allow_events(globalconf.connection,
XCB_ALLOW_ASYNC_POINTER,
XCB_CURRENT_TIME);
}
else if((c = client_getbyframewin(ev->event)))
{
luaA_object_push(L, c);
/* And handle the button raw button event */
event_emit_button(L, ev);
/* then check if a titlebar was "hit" */
int x = ev->event_x, y = ev->event_y;
drawable_t *d = client_get_drawable_offset(c, &x, &y);
if (d)
{
/* Copy the event so that we can fake x/y */
xcb_button_press_event_t event = *ev;
event.event_x = x;
event.event_y = y;
luaA_object_push_item(L, -1, d);
event_emit_button(L, &event);
lua_pop(L, 1);
}
/* then check if any button objects match */
event_button_callback(ev, &c->buttons, L, -1, 1, NULL);
xcb_allow_events(globalconf.connection,
XCB_ALLOW_REPLAY_POINTER,
XCB_CURRENT_TIME);
}
else if(ev->child == XCB_NONE)
if(globalconf.screen->root == ev->event)
{
event_button_callback(ev, &globalconf.buttons, L, 0, 0, NULL);
return;
}
}
static void
event_handle_configurerequest_configure_window(xcb_configure_request_event_t *ev)
{
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(globalconf.connection, ev->window, config_win_mask, config_win_vals);
}
/** The configure event handler.
* \param ev The event.
*/
static void
event_handle_configurerequest(xcb_configure_request_event_t *ev)
{
client_t *c;
if((c = client_getbywin(ev->window)))
{
area_t geometry = c->geometry;
int16_t diff_w = 0, diff_h = 0, diff_border = 0;
if(ev->value_mask & XCB_CONFIG_WINDOW_X)
{
geometry.x = ev->x;
/* The ConfigureRequest specifies the position of the outer corner of the client window, we want the frame */
geometry.x -= c->border_width;
}
if(ev->value_mask & XCB_CONFIG_WINDOW_Y)
{
geometry.y = ev->y;
/* The ConfigureRequest specifies the position of the outer corner of the client window, we want the frame */
geometry.y -= c->border_width;
}
if(ev->value_mask & XCB_CONFIG_WINDOW_WIDTH)
{
uint16_t old_w = geometry.width;
geometry.width = ev->width;
/* The ConfigureRequest specifies the size of the client window, we want the frame */
geometry.width += c->titlebar[CLIENT_TITLEBAR_LEFT].size;
geometry.width += c->titlebar[CLIENT_TITLEBAR_RIGHT].size;
diff_w = geometry.width - old_w;
}
if(ev->value_mask & XCB_CONFIG_WINDOW_HEIGHT)
{
uint16_t old_h = geometry.height;
geometry.height = ev->height;
/* The ConfigureRequest specifies the size of the client window, we want the frame */
geometry.height += c->titlebar[CLIENT_TITLEBAR_TOP].size;
geometry.height += c->titlebar[CLIENT_TITLEBAR_BOTTOM].size;
diff_h = geometry.height - old_h;
}
if(ev->value_mask & XCB_CONFIG_WINDOW_BORDER_WIDTH)
{
lua_State *L = globalconf_get_lua_State();
diff_border = ev->border_width - c->border_width;
diff_h += diff_border;
diff_w += diff_border;
luaA_object_push(L, c);
window_set_border_width(L, -1, ev->border_width);
lua_pop(L, 1);
}
/* If the client resizes without moving itself, apply window gravity */
if(c->size_hints.flags & XCB_ICCCM_SIZE_HINT_P_WIN_GRAVITY)
{
int16_t diff_x = 0, diff_y = 0;
xwindow_translate_for_gravity(c->size_hints.win_gravity, diff_border, diff_border, diff_w, diff_h, &diff_x, &diff_y);
if(!(ev->value_mask & XCB_CONFIG_WINDOW_X))
geometry.x += diff_x;
if(!(ev->value_mask & XCB_CONFIG_WINDOW_Y))
geometry.y += diff_y;
}
if(!client_resize(c, geometry, false))
/* ICCCM 4.1.5 / 4.2.3, if nothing was changed, send an event saying so */
client_send_configure(c);
}
else
event_handle_configurerequest_configure_window(ev);
}
/** The configure notify event handler.
* \param ev The event.
*/
static void
event_handle_configurenotify(xcb_configure_notify_event_t *ev)
{
const xcb_screen_t *screen = globalconf.screen;
if(ev->window == screen->root
&& (ev->width != screen->width_in_pixels
|| ev->height != screen->height_in_pixels))
/* it's not that we panic, but restart */
awesome_restart();
}
/** The destroy notify event handler.
* \param ev The event.
*/
static void
event_handle_destroynotify(xcb_destroy_notify_event_t *ev)
{
client_t *c;
if((c = client_getbywin(ev->window)))
client_unmanage(c, false);
else
for(int i = 0; i < globalconf.embedded.len; i++)
if(globalconf.embedded.tab[i].win == ev->window)
{
xembed_window_array_take(&globalconf.embedded, i);
luaA_systray_invalidate();
}
}
/** The motion notify event handler.
* \param ev The event.
*/
static void
event_handle_motionnotify(xcb_motion_notify_event_t *ev)
{
lua_State *L = globalconf_get_lua_State();
drawin_t *w;
client_t *c;
globalconf.timestamp = ev->time;
if(event_handle_mousegrabber(ev->root_x, ev->root_y, ev->state))
return;
if((c = client_getbyframewin(ev->event)))
{
luaA_object_push(L, c);
lua_pushnumber(L, ev->event_x);
lua_pushnumber(L, ev->event_y);
luaA_object_emit_signal(L, -3, "mouse::move", 2);
/* now check if a titlebar was "hit" */
int x = ev->event_x, y = ev->event_y;
drawable_t *d = client_get_drawable_offset(c, &x, &y);
if (d)
{
luaA_object_push_item(L, -1, d);
lua_pushnumber(L, x);
lua_pushnumber(L, y);
luaA_object_emit_signal(L, -3, "mouse::move", 2);
lua_pop(L, 1);
}
lua_pop(L, 1);
}
if((w = drawin_getbywin(ev->event)))
{
luaA_object_push(L, w);
luaA_object_push_item(L, -1, w->drawable);
lua_pushnumber(L, ev->event_x);
lua_pushnumber(L, ev->event_y);
luaA_object_emit_signal(L, -3, "mouse::move", 2);
lua_pop(L, 2);
}
}
/** The leave notify event handler.
* \param ev The event.
*/
static void
event_handle_leavenotify(xcb_leave_notify_event_t *ev)
{
lua_State *L = globalconf_get_lua_State();
drawin_t *drawin;
client_t *c;
globalconf.timestamp = ev->time;
if(ev->mode != XCB_NOTIFY_MODE_NORMAL)
return;
if((c = client_getbyframewin(ev->event)))
{
luaA_object_push(L, c);
luaA_object_emit_signal(L, -1, "mouse::leave", 0);
drawable_t *d = client_get_drawable(c, ev->event_x, ev->event_y);
if (d)
{
luaA_object_push_item(L, -1, d);
luaA_object_emit_signal(L, -1, "mouse::leave", 0);
lua_pop(L, 1);
}
lua_pop(L, 1);
}
if((drawin = drawin_getbywin(ev->event)))
{
luaA_object_push(L, drawin);
luaA_object_push_item(L, -1, drawin->drawable);
luaA_object_emit_signal(L, -1, "mouse::leave", 0);
lua_pop(L, 2);
}
}
/** The enter notify event handler.
* \param ev The event.
*/
static void
event_handle_enternotify(xcb_enter_notify_event_t *ev)
{
lua_State *L = globalconf_get_lua_State();
client_t *c;
drawin_t *drawin;
globalconf.timestamp = ev->time;
if(ev->mode != XCB_NOTIFY_MODE_NORMAL)
return;
if((drawin = drawin_getbywin(ev->event)))
{
luaA_object_push(L, drawin);
luaA_object_push_item(L, -1, drawin->drawable);
luaA_object_emit_signal(L, -1, "mouse::enter", 0);
lua_pop(L, 2);
}
if((c = client_getbyframewin(ev->event)))
{
luaA_object_push(L, c);
luaA_object_emit_signal(L, -1, "mouse::enter", 0);
drawable_t *d = client_get_drawable(c, ev->event_x, ev->event_y);
if (d)
{
luaA_object_push_item(L, -1, d);
luaA_object_emit_signal(L, -1, "mouse::enter", 0);
lua_pop(L, 1);
}
lua_pop(L, 1);
}
}
/** The focus in event handler.
* \param ev The event.
*/
static void
event_handle_focusin(xcb_focus_in_event_t *ev)
{
if (ev->mode == XCB_NOTIFY_MODE_GRAB
|| ev->mode == XCB_NOTIFY_MODE_UNGRAB)
/* Ignore focus changes due to keyboard grabs */
return;
/* Events that we are interested in: */
switch(ev->detail)
{
/* These are events that jump between root windows.
*/
case XCB_NOTIFY_DETAIL_ANCESTOR:
case XCB_NOTIFY_DETAIL_INFERIOR:
/* These are events that jump between clients.
* Virtual events ensure we always get an event on our top-level window.
*/
case XCB_NOTIFY_DETAIL_NONLINEAR_VIRTUAL:
case XCB_NOTIFY_DETAIL_NONLINEAR:
{
client_t *c;
if((c = client_getbywin(ev->event))) {
/* If there is still a pending focus change, do it now. */
client_focus_refresh();
client_focus_update(c);
}
}
/* all other events are ignored */
default:
break;
}
}
/** The expose event handler.
* \param ev The event.
*/
static void
event_handle_expose(xcb_expose_event_t *ev)
{
drawin_t *drawin;
client_t *client;
if((drawin = drawin_getbywin(ev->window)))
drawin_refresh_pixmap_partial(drawin,
ev->x, ev->y,
ev->width, ev->height);
if ((client = client_getbyframewin(ev->window)))
client_refresh_partial(client, ev->x, ev->y, ev->width, ev->height);
}
/** The key press event handler.
* \param ev The event.
*/
static void
event_handle_key(xcb_key_press_event_t *ev)
{
lua_State *L = globalconf_get_lua_State();
globalconf.timestamp = ev->time;
if(globalconf.keygrabber != LUA_REFNIL)
{
lua_rawgeti(L, LUA_REGISTRYINDEX, globalconf.keygrabber);
if(keygrabber_handlekpress(L, ev))
{
if(lua_pcall(L, 3, 1, 0))
{
warn("error running function: %s", lua_tostring(L, -1));
luaA_keygrabber_stop(L);
}
}
lua_pop(L, 1); /* pop returned value or function if not called */
}
else
{
/* get keysym ignoring all modifiers */
xcb_keysym_t keysym = keyresolv_get_keysym(ev->detail, 0);
client_t *c;
if((c = client_getbyframewin(ev->event)))
{
luaA_object_push(L, c);
event_key_callback(ev, &c->keys, L, -1, 1, &keysym);
}
else
event_key_callback(ev, &globalconf.keys, L, 0, 0, &keysym);
}
}
/** The map request event handler.
* \param ev The event.
*/
static void
event_handle_maprequest(xcb_map_request_event_t *ev)
{
client_t *c;
xcb_get_window_attributes_cookie_t wa_c;
xcb_get_window_attributes_reply_t *wa_r;
xcb_get_geometry_cookie_t geom_c;
xcb_get_geometry_reply_t *geom_r;
wa_c = xcb_get_window_attributes_unchecked(globalconf.connection, ev->window);
if(!(wa_r = xcb_get_window_attributes_reply(globalconf.connection, wa_c, NULL)))
return;
if(wa_r->override_redirect)
goto bailout;
if(xembed_getbywin(&globalconf.embedded, ev->window))
{
xcb_map_window(globalconf.connection, ev->window);
xembed_window_activate(globalconf.connection, ev->window);
}
else if((c = client_getbywin(ev->window)))
{
/* Check that it may be visible, but not asked to be hidden */
if(client_maybevisible(c) && !c->hidden)
{
lua_State *L = globalconf_get_lua_State();
luaA_object_push(L, c);
client_set_minimized(L, -1, false);
lua_pop(L, 1);
/* it will be raised, so just update ourself */
client_raise(c);
}
}
else
{
geom_c = xcb_get_geometry_unchecked(globalconf.connection, ev->window);
if(!(geom_r = xcb_get_geometry_reply(globalconf.connection, geom_c, NULL)))
{
goto bailout;
}
client_manage(ev->window, geom_r, wa_r);
p_delete(&geom_r);
}
bailout:
p_delete(&wa_r);
}
/** The unmap notify event handler.
* \param ev The event.
*/
static void
event_handle_unmapnotify(xcb_unmap_notify_event_t *ev)
{
client_t *c;
if((c = client_getbywin(ev->window)))
client_unmanage(c, true);
else
for(int i = 0; i < globalconf.embedded.len; i++)
if(globalconf.embedded.tab[i].win == ev->window)
{
xembed_window_array_take(&globalconf.embedded, i);
xcb_change_save_set(globalconf.connection, XCB_SET_MODE_DELETE, ev->window);
luaA_systray_invalidate();
}
}
/** The randr screen change notify event handler.
* \param ev The event.
*/
static void
event_handle_randr_screen_change_notify(xcb_randr_screen_change_notify_event_t *ev)
{
/* 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(globalconf.connection, ev->root, ev->height, ev->width,
ev->mheight, ev->mwidth);
else
xcb_randr_set_screen_size(globalconf.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);
*/
awesome_restart();
}
/** The shape notify event handler.
* \param ev The event.
*/
static void
event_handle_shape_notify(xcb_shape_notify_event_t *ev)
{
client_t *c = client_getbywin(ev->affected_window);
if (c)
{
lua_State *L = globalconf_get_lua_State();
luaA_object_push(L, c);
if (ev->shape_kind == XCB_SHAPE_SK_BOUNDING)
luaA_object_emit_signal(L, -1, "property::shape_client_bounding", 0);
if (ev->shape_kind == XCB_SHAPE_SK_CLIP)
luaA_object_emit_signal(L, -1, "property::shape_client_clip", 0);
lua_pop(L, 1);
}
}
/** The client message event handler.
* \param ev The event.
*/
static void
event_handle_clientmessage(xcb_client_message_event_t *ev)
{
/* check for startup notification messages */
if(sn_xcb_display_process_event(globalconf.sndisplay, (xcb_generic_event_t *) ev))
return;
if(ev->type == WM_CHANGE_STATE)
{
client_t *c;
if((c = client_getbywin(ev->window))
&& ev->format == 32
&& ev->data.data32[0] == XCB_ICCCM_WM_STATE_ICONIC)
{
lua_State *L = globalconf_get_lua_State();
luaA_object_push(L, c);
client_set_minimized(L, -1, true);
lua_pop(L, 1);
}
}
else if(ev->type == _XEMBED)
xembed_process_client_message(ev);
else if(ev->type == _NET_SYSTEM_TRAY_OPCODE)
systray_process_client_message(ev);
else
ewmh_process_client_message(ev);
}
/** The keymap change notify event handler.
* \param ev The event.
*/
static void
event_handle_mappingnotify(xcb_mapping_notify_event_t *ev)
{
if(ev->request == XCB_MAPPING_MODIFIER
|| ev->request == XCB_MAPPING_KEYBOARD)
{
xcb_get_modifier_mapping_cookie_t xmapping_cookie =
xcb_get_modifier_mapping_unchecked(globalconf.connection);
/* Free and then allocate the key symbols */
xcb_key_symbols_free(globalconf.keysyms);
globalconf.keysyms = xcb_key_symbols_alloc(globalconf.connection);
xutil_lock_mask_get(globalconf.connection, xmapping_cookie,
globalconf.keysyms, &globalconf.numlockmask,
&globalconf.shiftlockmask, &globalconf.capslockmask,
&globalconf.modeswitchmask);
/* regrab everything */
xcb_screen_t *s = globalconf.screen;
/* yes XCB_BUTTON_MASK_ANY is also for grab_key even if it's look weird */
xcb_ungrab_key(globalconf.connection, XCB_GRAB_ANY, s->root, XCB_BUTTON_MASK_ANY);
xwindow_grabkeys(s->root, &globalconf.keys);
foreach(_c, globalconf.clients)
{
client_t *c = *_c;
xcb_ungrab_key(globalconf.connection, XCB_GRAB_ANY, c->frame_window, XCB_BUTTON_MASK_ANY);
xwindow_grabkeys(c->frame_window, &c->keys);
}
}
}
static void
event_handle_reparentnotify(xcb_reparent_notify_event_t *ev)
{
client_t *c;
if((c = client_getbywin(ev->window)) && c->frame_window != ev->parent)
{
/* Ignore reparents to the root window, they *might* be caused by
* ourselves if a client quickly unmaps and maps itself again. */
if (ev->parent != globalconf.screen->root)
client_unmanage(c, true);
}
}
/** \brief awesome xerror function.
* There's no way to check accesses to destroyed windows, thus those cases are
* ignored (especially on UnmapNotify's).
* \param e The error event.
*/
static void
xerror(xcb_generic_error_t *e)
{
/* ignore this */
if(e->error_code == XCB_WINDOW
|| (e->error_code == XCB_MATCH
&& e->major_code == XCB_SET_INPUT_FOCUS)
|| (e->error_code == XCB_VALUE
&& e->major_code == XCB_KILL_CLIENT)
|| (e->error_code == XCB_MATCH
&& e->major_code == XCB_CONFIGURE_WINDOW))
return;
warn("X error: request=%s (major %d, minor %d), error=%s (%d)",
xcb_event_get_request_label(e->major_code),
e->major_code, e->minor_code,
xcb_event_get_error_label(e->error_code),
e->error_code);
return;
}
void event_handle(xcb_generic_event_t *event)
{
uint8_t response_type = XCB_EVENT_RESPONSE_TYPE(event);
if(response_type == 0)
{
/* This is an error, not a event */
xerror((xcb_generic_error_t *) event);
return;
}
switch(response_type)
{
#define EVENT(type, callback) case type: callback((void *) event); return
EVENT(XCB_BUTTON_PRESS, event_handle_button);
EVENT(XCB_BUTTON_RELEASE, event_handle_button);
EVENT(XCB_CONFIGURE_REQUEST, event_handle_configurerequest);
EVENT(XCB_CONFIGURE_NOTIFY, event_handle_configurenotify);
EVENT(XCB_DESTROY_NOTIFY, event_handle_destroynotify);
EVENT(XCB_ENTER_NOTIFY, event_handle_enternotify);
EVENT(XCB_CLIENT_MESSAGE, event_handle_clientmessage);
EVENT(XCB_EXPOSE, event_handle_expose);
EVENT(XCB_FOCUS_IN, event_handle_focusin);
EVENT(XCB_KEY_PRESS, event_handle_key);
EVENT(XCB_KEY_RELEASE, event_handle_key);
EVENT(XCB_LEAVE_NOTIFY, event_handle_leavenotify);
EVENT(XCB_MAPPING_NOTIFY, event_handle_mappingnotify);
EVENT(XCB_MAP_REQUEST, event_handle_maprequest);
EVENT(XCB_MOTION_NOTIFY, event_handle_motionnotify);
EVENT(XCB_PROPERTY_NOTIFY, property_handle_propertynotify);
EVENT(XCB_REPARENT_NOTIFY, event_handle_reparentnotify);
EVENT(XCB_UNMAP_NOTIFY, event_handle_unmapnotify);
#undef EVENT
}
static uint8_t randr_screen_change_notify = 0;
static uint8_t shape_notify = 0;
if(randr_screen_change_notify == 0)
{
/* check for randr extension */
const xcb_query_extension_reply_t *randr_query;
randr_query = xcb_get_extension_data(globalconf.connection, &xcb_randr_id);
if(randr_query->present)
randr_screen_change_notify = randr_query->first_event + XCB_RANDR_SCREEN_CHANGE_NOTIFY;
}
if(shape_notify == 0)
{
/* check for shape extension */
const xcb_query_extension_reply_t *shape_query;
shape_query = xcb_get_extension_data(globalconf.connection, &xcb_shape_id);
if(shape_query->present)
shape_notify = shape_query->first_event + XCB_SHAPE_NOTIFY;
}
if (response_type == randr_screen_change_notify)
event_handle_randr_screen_change_notify((void *) event);
if (response_type == shape_notify)
event_handle_shape_notify((void *) event);
}
// vim: filetype=c:expandtab:shiftwidth=4:tabstop=8:softtabstop=4:textwidth=80
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