/* * event.c - event handlers * * Copyright © 2007-2008 Julien Danjou * * 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 #include #include #include #include #include "awesome.h" #include "event.h" #include "tag.h" #include "window.h" #include "ewmh.h" #include "client.h" #include "widget.h" #include "titlebar.h" #include "key.h" #include "keygrabber.h" #include "mousegrabber.h" #include "luaa.h" #include "systray.h" #include "screen.h" #include "common/atoms.h" extern awesome_t globalconf; /** Handle mouse button events. * \param c The client on which the event happened or NULL. * \param type Event type, press or release. * \param button Button number. * \param state Modkeys state. * \param buttons Buttons array to check for. */ static void event_handle_mouse_button(client_t *c, uint8_t type, xcb_button_t button, uint16_t state, button_array_t *buttons) { for(int i = 0; i < buttons->len; i++) if(button == buttons->tab[i]->button && XUTIL_MASK_CLEAN(state) == buttons->tab[i]->mod) switch(type) { case XCB_BUTTON_PRESS: if(buttons->tab[i]->press != LUA_REFNIL) { if(c) { luaA_client_userdata_new(globalconf.L, c); luaA_dofunction(globalconf.L, buttons->tab[i]->press, 1, 0); } else luaA_dofunction(globalconf.L, buttons->tab[i]->press, 0, 0); } break; case XCB_BUTTON_RELEASE: if(buttons->tab[i]->release != LUA_REFNIL) { if(c) { luaA_client_userdata_new(globalconf.L, c); luaA_dofunction(globalconf.L, buttons->tab[i]->release, 1, 0); } else luaA_dofunction(globalconf.L, buttons->tab[i]->release, 0, 0); } break; } } /** Handle an event with mouse grabber if needed * \param x The x coordinate. * \param y The y coordinate. * \param mask The mask buttons. */ static void event_handle_mousegrabber(int x, int y, uint16_t mask) { if(globalconf.mousegrabber != LUA_REFNIL) { lua_rawgeti(globalconf.L, LUA_REGISTRYINDEX, globalconf.mousegrabber); mousegrabber_handleevent(globalconf.L, x, y, mask); if(lua_pcall(globalconf.L, 1, 1, 0)) { warn("error running function: %s", lua_tostring(globalconf.L, -1)); luaA_mousegrabber_stop(globalconf.L); } else if(!lua_isboolean(globalconf.L, -1) || !lua_toboolean(globalconf.L, -1)) luaA_mousegrabber_stop(globalconf.L); lua_pop(globalconf.L, 1); /* pop returned value */ } } /** The button press event handler. * \param data The type of mouse event. * \param connection The connection to the X server. * \param ev The event. */ static int event_handle_button(void *data, xcb_connection_t *connection, xcb_button_press_event_t *ev) { int screen; const int nb_screen = xcb_setup_roots_length(xcb_get_setup(connection)); client_t *c; widget_t *w; wibox_t *wibox; /* 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; event_handle_mousegrabber(ev->root_x, ev->root_y, ev->state); if((wibox = wibox_getbywin(ev->event)) || (wibox = wibox_getbywin(ev->child))) { /* If the wibox is child, then x,y are * relative to root window */ if(wibox->sw.window == ev->child) { ev->event_x -= wibox->sw.geometry.x; ev->event_y -= wibox->sw.geometry.y; } /* check if we match a binding on the wibox */ button_array_t *b = &wibox->buttons; for(int i = 0; i < b->len; i++) if(ev->detail == b->tab[i]->button && XUTIL_MASK_CLEAN(ev->state) == b->tab[i]->mod) switch(ev->response_type) { case XCB_BUTTON_PRESS: if(b->tab[i]->press != LUA_REFNIL) { luaA_wibox_userdata_new(globalconf.L, wibox); luaA_dofunction(globalconf.L, b->tab[i]->press, 1, 0); } break; case XCB_BUTTON_RELEASE: if(b->tab[i]->release != LUA_REFNIL) { luaA_wibox_userdata_new(globalconf.L, wibox); luaA_dofunction(globalconf.L, b->tab[i]->release, 1, 0); } break; } /* then try to match a widget binding */ if((w = widget_getbycoords(wibox->position, &wibox->widgets, wibox->sw.geometry.width, wibox->sw.geometry.height, &ev->event_x, &ev->event_y))) { b = &w->buttons; for(int i = 0; i < b->len; i++) if(ev->detail == b->tab[i]->button && XUTIL_MASK_CLEAN(ev->state) == b->tab[i]->mod) switch(ev->response_type) { case XCB_BUTTON_PRESS: if(b->tab[i]->press != LUA_REFNIL) { luaA_wibox_userdata_new(globalconf.L, wibox); luaA_dofunction(globalconf.L, b->tab[i]->press, 1, 0); } break; case XCB_BUTTON_RELEASE: if(b->tab[i]->release != LUA_REFNIL) { luaA_wibox_userdata_new(globalconf.L, wibox); luaA_dofunction(globalconf.L, b->tab[i]->release, 1, 0); } break; } } /* return even if no widget match */ return 0; } if((c = client_getbywin(ev->event))) { event_handle_mouse_button(c, ev->response_type, ev->detail, ev->state, &c->buttons); xcb_allow_events(globalconf.connection, XCB_ALLOW_REPLAY_POINTER, XCB_CURRENT_TIME); } else for(screen = 0; screen < nb_screen; screen++) if(xutil_screen_get(connection, screen)->root == ev->event) { event_handle_mouse_button(NULL, ev->response_type, ev->detail, ev->state, &globalconf.buttons); return 0; } return 0; } /** The configure event handler. * \param data currently unused. * \param connection The connection to the X server. * \param ev The event. */ static 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) { client_resize(c, geometry, false); /* All the wiboxes (may) need to be repositioned. */ if(client_hasstrut(c)) wibox_update_positions(); client_need_arrange(c); } else 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; } /** The configure notify event handler. * \param data currently unused. * \param connection The connection to the X server. * \param ev The event. */ static 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 = xutil_screen_get(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 */ awesome_restart(); return 0; } /** The destroy notify event handler. * \param data currently unused. * \param connection The connection to the X server. * \param ev The event. */ static 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); 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); for(int j = 0; j < globalconf.nscreen; j++) widget_invalidate_bytype(j, widget_systray); } return 0; } /** Handle a motion notify over widgets. * \param object The object. * \param mouse_over The pointer to the registered mouse over widget. * \param widget The new widget the mouse is over. */ static void event_handle_widget_motionnotify(void *object, widget_t **mouse_over, widget_t *widget) { if(widget != *mouse_over) { if(*mouse_over) { if((*mouse_over)->mouse_leave != LUA_REFNIL) { /* call mouse leave function on old widget */ luaA_wibox_userdata_new(globalconf.L, object); luaA_dofunction(globalconf.L, (*mouse_over)->mouse_leave, 1, 0); } } if(widget) { /* call mouse enter function on new widget and register it */ *mouse_over = widget; if(widget->mouse_enter != LUA_REFNIL) { luaA_wibox_userdata_new(globalconf.L, object); luaA_dofunction(globalconf.L, widget->mouse_enter, 1, 0); } } } } /** The motion notify event handler. * \param data currently unused. * \param connection The connection to the X server. * \param ev The event. */ static int event_handle_motionnotify(void *data __attribute__ ((unused)), xcb_connection_t *connection, xcb_motion_notify_event_t *ev) { wibox_t *wibox = wibox_getbywin(ev->event); widget_t *w; event_handle_mousegrabber(ev->root_x, ev->root_y, ev->state); if(wibox && (w = widget_getbycoords(wibox->position, &wibox->widgets, wibox->sw.geometry.width, wibox->sw.geometry.height, &ev->event_x, &ev->event_y))) { globalconf.pointer_x = ev->root_x; globalconf.pointer_y = ev->root_y; event_handle_widget_motionnotify(wibox, &wibox->mouse_over, w); } return 0; } /** The leave notify event handler. * \param data currently unused. * \param connection The connection to the X server. * \param ev The event. */ static int event_handle_leavenotify(void *data __attribute__ ((unused)), xcb_connection_t *connection, xcb_leave_notify_event_t *ev) { wibox_t *wibox; client_t *c = client_getbywin(ev->event); if(c) { if(globalconf.hooks.mouse_leave != LUA_REFNIL) { luaA_client_userdata_new(globalconf.L, c); luaA_dofunction(globalconf.L, globalconf.hooks.mouse_leave, 1, 0); } } else if((wibox = wibox_getbywin(ev->event))) { if(wibox->mouse_over) { if(wibox->mouse_over->mouse_leave != LUA_REFNIL) { /* call mouse leave function on widget the mouse was over */ luaA_wibox_userdata_new(globalconf.L, wibox); luaA_dofunction(globalconf.L, wibox->mouse_over->mouse_leave, 1, 0); } wibox->mouse_over = NULL; } } return 0; } /** The enter notify event handler. * \param data currently unused. * \param connection The connection to the X server. * \param ev The event. */ static int event_handle_enternotify(void *data __attribute__ ((unused)), xcb_connection_t *connection, xcb_enter_notify_event_t *ev) { client_t *c; xembed_window_t *emwin; wibox_t *wibox; widget_t *w; if(ev->mode != XCB_NOTIFY_MODE_NORMAL || (ev->root_x == globalconf.pointer_x && ev->root_y == globalconf.pointer_y)) return 0; if((wibox = wibox_getbywin(ev->event)) && (w = widget_getbycoords(wibox->position, &wibox->widgets, wibox->sw.geometry.width, wibox->sw.geometry.height, &ev->event_x, &ev->event_y))) { globalconf.pointer_x = ev->root_x; globalconf.pointer_y = ev->root_y; event_handle_widget_motionnotify(wibox, &wibox->mouse_over, w); } else if((c = client_getbytitlebarwin(ev->event)) || (c = client_getbywin(ev->event))) { window_buttons_grab(c->win, ev->root, &c->buttons); /* 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; if(globalconf.hooks.mouse_enter != LUA_REFNIL) { luaA_client_userdata_new(globalconf.L, c); luaA_dofunction(globalconf.L, globalconf.hooks.mouse_enter, 1, 0); } } else if((emwin = xembed_getbywin(&globalconf.embedded, ev->event))) xcb_ungrab_button(globalconf.connection, XCB_BUTTON_INDEX_ANY, xutil_screen_get(connection, emwin->phys_screen)->root, XCB_BUTTON_MASK_ANY); else if(ev->event == ev->root) window_root_buttons_grab(ev->root); return 0; } /** The expose event handler. * \param data currently unused. * \param connection The connection to the X server. * \param ev The event. */ static int event_handle_expose(void *data __attribute__ ((unused)), xcb_connection_t *connection __attribute__ ((unused)), xcb_expose_event_t *ev) { wibox_t *wibox = wibox_getbywin(ev->window); if(wibox) simplewindow_refresh_pixmap_partial(&wibox->sw, ev->x, ev->y, ev->width, ev->height); return 0; } /** The key press event handler. * \param data currently unused. * \param connection The connection to the X server. * \param ev The event. */ static int event_handle_key(void *data __attribute__ ((unused)), xcb_connection_t *connection __attribute__ ((unused)), xcb_key_press_event_t *ev) { if(globalconf.keygrabber != LUA_REFNIL) { lua_rawgeti(globalconf.L, LUA_REGISTRYINDEX, globalconf.keygrabber); if(keygrabber_handlekpress(globalconf.L, ev)) { if(lua_pcall(globalconf.L, 3, 1, 0)) { warn("error running function: %s", lua_tostring(globalconf.L, -1)); luaA_keygrabber_stop(globalconf.L); } else if(!lua_isboolean(globalconf.L, -1) || !lua_toboolean(globalconf.L, -1)) luaA_keygrabber_stop(globalconf.L); } lua_pop(globalconf.L, 1); /* pop returned value or function if not called */ } else { keyb_t *k = key_find(ev); if(k) switch(ev->response_type) { case XCB_KEY_PRESS: if(k->press != LUA_REFNIL) luaA_dofunction(globalconf.L, k->press, 0, 0); break; case XCB_KEY_RELEASE: if(k->release != LUA_REFNIL) luaA_dofunction(globalconf.L, k->release, 0, 0); break; } } return 0; } /** The map request event handler. * \param data currently unused. * \param connection The connection to the X server. * \param ev The event. */ static int event_handle_maprequest(void *data __attribute__ ((unused)), xcb_connection_t *connection, xcb_map_request_event_t *ev) { int phys_screen, ret = 0; 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(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(xembed_getbywin(&globalconf.embedded, ev->window)) { xcb_map_window(connection, ev->window); xembed_window_activate(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->screen) && !c->ishidden) { client_setminimized(c, false); /* it will be raised, so just update ourself */ client_raise(c); } } else { geom_c = xcb_get_geometry_unchecked(connection, ev->window); if(!(geom_r = xcb_get_geometry_reply(connection, geom_c, NULL))) { ret = -1; goto bailout; } phys_screen = xutil_root2screen(connection, geom_r->root); client_manage(ev->window, geom_r, phys_screen, false); p_delete(&geom_r); } bailout: p_delete(&wa_r); return ret; } /** The unmap notify event handler. * \param data currently unused. * \param connection The connection to the X server. * \param ev The event. */ static int event_handle_unmapnotify(void *data __attribute__ ((unused)), xcb_connection_t *connection, xcb_unmap_notify_event_t *ev) { client_t *c; if((c = client_getbywin(ev->window))) { if(ev->event == xutil_screen_get(connection, c->phys_screen)->root && XCB_EVENT_SENT(ev) && window_state_get_reply(window_state_get_unchecked(c->win)) == XCB_WM_STATE_NORMAL) client_unmanage(c); } 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); for(int j = 0; j < globalconf.nscreen; j++) widget_invalidate_bytype(j, widget_systray); } return 0; } /** The randr screen change notify event handler. * \param data currently unused. * \param connection The connection to the X server. * \param ev The event. */ static 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); */ awesome_restart(); return 0; } /** The client message event handler. * \param data currently unused. * \param connection The connection to the X server. * \param ev The event. */ static int event_handle_clientmessage(void *data __attribute__ ((unused)), xcb_connection_t *connection, xcb_client_message_event_t *ev) { client_t *c; if(ev->type == WM_CHANGE_STATE) { if((c = client_getbywin(ev->window)) && ev->format == 32 && ev->data.data32[0] == XCB_WM_STATE_ICONIC) client_setminimized(c, true); } else if(ev->type == _XEMBED) return xembed_process_client_message(ev); else if(ev->type == _NET_SYSTEM_TRAY_OPCODE) return systray_process_client_message(ev); return ewmh_process_client_message(ev); } /** The keymap change notify event handler. * \param data Unused data. * \param connection The connection to the X server. * \param ev The event. * \return Status code, 0 if everything's fine. */ static int event_handle_mappingnotify(void *data, xcb_connection_t *connection, xcb_mapping_notify_event_t *ev) { xcb_get_modifier_mapping_cookie_t xmapping_cookie; if(ev->request == XCB_MAPPING_MODIFIER || ev->request == XCB_MAPPING_KEYBOARD) { int nscreen = xcb_setup_roots_length(xcb_get_setup(connection)); int phys_screen = 0; /* Send the request to get the NumLock, ShiftLock and CapsLock masks */ 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); /* Process the reply of previously sent mapping request */ xutil_lock_mask_get(globalconf.connection, xmapping_cookie, globalconf.keysyms, &globalconf.numlockmask, &globalconf.shiftlockmask, &globalconf.capslockmask); do { xcb_screen_t *s = xutil_screen_get(globalconf.connection, phys_screen); /* yes XCB_BUTTON_MASK_ANY is also for grab_key even if it's look * weird */ xcb_ungrab_key(connection, XCB_GRAB_ANY, s->root, XCB_BUTTON_MASK_ANY); phys_screen++; } while(phys_screen < nscreen); /* regrab everything */ key_array_t *arr = &globalconf.keys.by_sym; for(int i = 0; i < arr->len; i++) window_root_grabkey(arr->tab[i]); arr = &globalconf.keys.by_code; for(int i = 0; i < arr->len; i++) window_root_grabkey(arr->tab[i]); } return 0; } static int event_handle_reparentnotify(void *data, xcb_connection_t *connection, xcb_reparent_notify_event_t *ev) { client_t *c; if((c = client_getbywin(ev->window))) client_unmanage(c); return 0; } void a_xcb_set_event_handlers(void) { const xcb_query_extension_reply_t *randr_query; xcb_event_set_button_press_handler(&globalconf.evenths, event_handle_button, NULL); xcb_event_set_button_release_handler(&globalconf.evenths, event_handle_button, NULL); xcb_event_set_configure_request_handler(&globalconf.evenths, event_handle_configurerequest, NULL); xcb_event_set_configure_notify_handler(&globalconf.evenths, event_handle_configurenotify, NULL); xcb_event_set_destroy_notify_handler(&globalconf.evenths, event_handle_destroynotify, NULL); xcb_event_set_enter_notify_handler(&globalconf.evenths, event_handle_enternotify, NULL); xcb_event_set_leave_notify_handler(&globalconf.evenths, event_handle_leavenotify, NULL); xcb_event_set_motion_notify_handler(&globalconf.evenths, event_handle_motionnotify, NULL); xcb_event_set_expose_handler(&globalconf.evenths, event_handle_expose, NULL); xcb_event_set_key_press_handler(&globalconf.evenths, event_handle_key, NULL); xcb_event_set_key_release_handler(&globalconf.evenths, event_handle_key, NULL); xcb_event_set_map_request_handler(&globalconf.evenths, event_handle_maprequest, NULL); xcb_event_set_unmap_notify_handler(&globalconf.evenths, event_handle_unmapnotify, NULL); xcb_event_set_client_message_handler(&globalconf.evenths, event_handle_clientmessage, NULL); xcb_event_set_mapping_notify_handler(&globalconf.evenths, event_handle_mappingnotify, NULL); xcb_event_set_reparent_notify_handler(&globalconf.evenths, event_handle_reparentnotify, NULL); /* check for randr extension */ randr_query = xcb_get_extension_data(globalconf.connection, &xcb_randr_id); if((globalconf.have_randr = randr_query->present)) xcb_event_set_handler(&globalconf.evenths, randr_query->first_event + XCB_RANDR_SCREEN_CHANGE_NOTIFY, (xcb_generic_event_handler_t) event_handle_randr_screen_change_notify, NULL); } // vim: filetype=c:expandtab:shiftwidth=4:tabstop=8:softtabstop=4:encoding=utf-8:textwidth=80