/* * mouse.c - mouse managing * * Copyright © 2007-2009 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 "mouse.h" #include "screen.h" #include "objects/client.h" #include "globalconf.h" #include "objects/drawin.h" #include "luaa.h" #include "common/xutil.h" /** Get the pointer position. * \param window The window to get position on. * \param x will be set to the Pointer-x-coordinate relative to window * \param y will be set to the Pointer-y-coordinate relative to window * \param child Will be set to the window under the pointer. * \return true on success, false if an error occurred **/ static bool mouse_query_pointer(xcb_window_t window, int16_t *x, int16_t *y, xcb_window_t *child) { xcb_query_pointer_cookie_t query_ptr_c; xcb_query_pointer_reply_t *query_ptr_r; query_ptr_c = xcb_query_pointer_unchecked(globalconf.connection, window); query_ptr_r = xcb_query_pointer_reply(globalconf.connection, query_ptr_c, NULL); if(!query_ptr_r || !query_ptr_r->same_screen) return false; *x = query_ptr_r->win_x; *y = query_ptr_r->win_y; if(child) *child = query_ptr_r->child; p_delete(&query_ptr_r); return true; } /** Get the pointer position on the screen. * \param x This will be set to the Pointer-x-coordinate relative to window. * \param y This will be set to the Pointer-y-coordinate relative to window. * \param child This will be set to the window under the pointer. * \param mask This will be set to the current buttons state. * \return True on success, false if an error occurred. */ static inline bool mouse_query_pointer_root(int16_t *x, int16_t *y, xcb_window_t *child) { return mouse_query_pointer(globalconf.screen->root, x, y, child); } /** Set the pointer position. * \param window The destination window. * \param x X-coordinate inside window. * \param y Y-coordinate inside window. */ static inline void mouse_warp_pointer(xcb_window_t window, int x, int y) { xcb_warp_pointer(globalconf.connection, XCB_NONE, window, 0, 0, 0, 0, x, y); } /** Mouse library. * \param L The Lua VM state. * \return The number of elements pushed on stack. * \luastack * \lfield coords Mouse coordinates. * \lfield screen Mouse screen number. */ static int luaA_mouse_index(lua_State *L) { const char *attr = luaL_checkstring(L, 2); int16_t mouse_x, mouse_y; screen_t *screen; /* attr is not "screen"?! */ if (A_STRNEQ(attr, "screen")) return 0; if (!mouse_query_pointer_root(&mouse_x, &mouse_y, NULL)) return 0; screen = screen_getbycoord(mouse_x, mouse_y); lua_pushnumber(L, screen_array_indexof(&globalconf.screens, screen) + 1); return 1; } /** Newindex for mouse. * \param L The Lua VM state. * \return The number of elements pushed on stack. */ static int luaA_mouse_newindex(lua_State *L) { const char *attr = luaL_checkstring(L, 2); int x, y = 0; int screen; if (A_STRNEQ(attr, "screen")) return 0; screen = luaL_checknumber(L, 3) - 1; luaA_checkscreen(screen); x = globalconf.screens.tab[screen].geometry.x; y = globalconf.screens.tab[screen].geometry.y; mouse_warp_pointer(globalconf.screen->root, x, y); return 0; } /** Push a table with mouse status. * \param L The Lua VM state. * \param x The x coordinate. * \param y The y coordinate. * \param mask The button mask. */ int luaA_mouse_pushstatus(lua_State *L, int x, int y) { lua_createtable(L, 0, 2); lua_pushnumber(L, x); lua_setfield(L, -2, "x"); lua_pushnumber(L, y); lua_setfield(L, -2, "y"); lua_createtable(L, 5, 0); const unsigned int max_button = sizeof(globalconf.buttons_pressed) * 8; unsigned int mask = 1; for (unsigned int i = 1; i <= max_button; i++, mask <<= 1) { lua_pushboolean(L, globalconf.buttons_pressed & mask); lua_rawseti(L, -2, i); } lua_setfield(L, -2, "buttons"); return 1; } /** Get or set the mouse coords. * \param L The Lua VM state. * \return The number of elements pushed on stack. */ static int luaA_mouse_coords(lua_State *L) { int x, y; int16_t mouse_x, mouse_y; if(lua_gettop(L) >= 1) { luaA_checktable(L, 1); bool ignore_enter_notify = (lua_gettop(L) == 2 && luaA_checkboolean(L, 2)); if(!mouse_query_pointer_root(&mouse_x, &mouse_y, NULL)) return 0; x = luaA_getopt_number(L, 1, "x", mouse_x); y = luaA_getopt_number(L, 1, "y", mouse_y); if(ignore_enter_notify) client_ignore_enterleave_events(); mouse_warp_pointer(globalconf.screen->root, x, y); if(ignore_enter_notify) client_restore_enterleave_events(); lua_pop(L, 1); } if(!mouse_query_pointer_root(&mouse_x, &mouse_y, NULL)) return 0; return luaA_mouse_pushstatus(L, mouse_x, mouse_y); } /** Get the client which is under the pointer. * \param L The Lua VM state. * \return The number of elements pushed on stack. * \luastack * \lreturn A client or nil. */ static int luaA_mouse_object_under_pointer(lua_State *L) { int16_t mouse_x, mouse_y; xcb_window_t child; if(!mouse_query_pointer_root(&mouse_x, &mouse_y, &child)) return 0; drawin_t *drawin; client_t *client; if((drawin = drawin_getbywin(child))) luaA_object_push(L, drawin); if((client = client_getbyframewin(child))) return luaA_object_push(globalconf.L, client); return 0; } const struct luaL_Reg awesome_mouse_methods[] = { { "__index", luaA_mouse_index }, { "__newindex", luaA_mouse_newindex }, { "coords", luaA_mouse_coords }, { "object_under_pointer", luaA_mouse_object_under_pointer }, { NULL, NULL } }; const struct luaL_Reg awesome_mouse_meta[] = { { NULL, NULL } }; // vim: filetype=c:expandtab:shiftwidth=4:tabstop=8:softtabstop=4:textwidth=80