/* * common/xutil.c - X-related useful functions * * 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 "common/util.h" #include #include #include #include "common/xutil.h" #include "common/atoms.h" #include "common/tokenize.h" /** Get the string value of an atom. * \param conn X connection. * \param w Window. * \param atom The atom. * \param text Buffer to fill. * \param len Length of the filled buffer. * \return True on sucess, false on failure. */ bool xutil_text_prop_get(xcb_connection_t *conn, xcb_window_t w, xcb_atom_t atom, char **text, ssize_t *len) { xcb_get_text_property_reply_t reply; p_clear(&reply, 1); if(!xcb_get_text_property_reply(conn, xcb_get_text_property_unchecked(conn, w, atom), &reply, NULL) || !reply.name_len || reply.format != 8) { xcb_get_text_property_reply_wipe(&reply); return false; } if(text && len) { /* Check whether the returned property value is just an ascii * string, an UTF-8 string or just some random multibyte in any other * encoding. */ if(reply.encoding == STRING || reply.encoding == UTF8_STRING || reply.encoding == COMPOUND_TEXT) { *text = p_new(char, reply.name_len + 1); /* Use memcpy() because the property name is not be \0 * terminated */ memcpy(*text, reply.name, reply.name_len); (*text)[reply.name_len] = '\0'; *len = reply.name_len; } else { *text = NULL; *len = 0; } } xcb_get_text_property_reply_wipe(&reply); return true; } /** Get the lock masks (shiftlock, numlock, capslock). * \param connection The X connection. * \param cookie The cookie of the request. * \param keysyms Key symbols. * \param numlockmask Numlock mask. * \param shiftlockmask Shiftlock mask. * \param capslockmask Capslock mask. */ void xutil_lock_mask_get(xcb_connection_t *connection, xcb_get_modifier_mapping_cookie_t cookie, xcb_key_symbols_t *keysyms, unsigned int *numlockmask, unsigned int *shiftlockmask, unsigned int *capslockmask) { xcb_get_modifier_mapping_reply_t *modmap_r; xcb_keycode_t *modmap, kc; unsigned int mask; int i, j; modmap_r = xcb_get_modifier_mapping_reply(connection, cookie, NULL); modmap = xcb_get_modifier_mapping_keycodes(modmap_r); for(i = 0; i < 8; i++) for(j = 0; j < modmap_r->keycodes_per_modifier; j++) { kc = modmap[i * modmap_r->keycodes_per_modifier + j]; mask = (1 << i); if(numlockmask != NULL && kc == xcb_key_symbols_get_keycode(keysyms, XK_Num_Lock)) *numlockmask = mask; else if(shiftlockmask != NULL && kc == xcb_key_symbols_get_keycode(keysyms, XK_Shift_Lock)) *shiftlockmask = mask; else if(capslockmask != NULL && kc == xcb_key_symbols_get_keycode(keysyms, XK_Caps_Lock)) *capslockmask = mask; } p_delete(&modmap_r); } /* Number of different errors */ #define ERRORS_NBR 256 void xutil_error_handler_catch_all_set(xcb_event_handlers_t *evenths, xcb_generic_error_handler_t handler, void *data) { int err_num; for(err_num = 0; err_num < ERRORS_NBR; err_num++) xcb_event_set_error_handler(evenths, err_num, handler, data); } const char * xutil_label_error[] = { "Success", "BadRequest", "BadValue", "BadWindow", "BadPixmap", "BadAtom", "BadCursor", "BadFont", "BadMatch", "BadDrawable", "BadAccess", "BadAlloc", "BadColor", "BadGC", "BadIDChoice", "BadName", "BadLength", "BadImplementation", }; const char * xutil_label_request[] = { "None", "CreateWindow", "ChangeWindowAttributes", "GetWindowAttributes", "DestroyWindow", "DestroySubwindows", "ChangeSaveSet", "ReparentWindow", "MapWindow", "MapSubwindows", "UnmapWindow", "UnmapSubwindows", "ConfigureWindow", "CirculateWindow", "GetGeometry", "QueryTree", "InternAtom", "GetAtomName", "ChangeProperty", "DeleteProperty", "GetProperty", "ListProperties", "SetSelectionOwner", "GetSelectionOwner", "ConvertSelection", "SendEvent", "GrabPointer", "UngrabPointer", "GrabButton", "UngrabButton", "ChangeActivePointerGrab", "GrabKeyboard", "UngrabKeyboard", "GrabKey", "UngrabKey", "AllowEvents", "GrabServer", "UngrabServer", "QueryPointer", "GetMotionEvents", "TranslateCoords", "WarpPointer", "SetInputFocus", "GetInputFocus", "QueryKeymap", "OpenFont", "CloseFont", "QueryFont", "QueryTextExtents", "ListFonts", "ListFontsWithInfo", "SetFontPath", "GetFontPath", "CreatePixmap", "FreePixmap", "CreateGC", "ChangeGC", "CopyGC", "SetDashes", "SetClipRectangles", "FreeGC", "ClearArea", "CopyArea", "CopyPlane", "PolyPoint", "PolyLine", "PolySegment", "PolyRectangle", "PolyArc", "FillPoly", "PolyFillRectangle", "PolyFillArc", "PutImage", "GetImage", "PolyText", "PolyText", "ImageText", "ImageText", "CreateColormap", "FreeColormap", "CopyColormapAndFree", "InstallColormap", "UninstallColormap", "ListInstalledColormaps", "AllocColor", "AllocNamedColor", "AllocColorCells", "AllocColorPlanes", "FreeColors", "StoreColors", "StoreNamedColor", "QueryColors", "LookupColor", "CreateCursor", "CreateGlyphCursor", "FreeCursor", "RecolorCursor", "QueryBestSize", "QueryExtension", "ListExtensions", "ChangeKeyboardMapping", "GetKeyboardMapping", "ChangeKeyboardControl", "GetKeyboardControl", "Bell", "ChangePointerControl", "GetPointerControl", "SetScreenSaver", "GetScreenSaver", "ChangeHosts", "ListHosts", "SetAccessControl", "SetCloseDownMode", "KillClient", "RotateProperties", "ForceScreenSaver", "SetPointerMapping", "GetPointerMapping", "SetModifierMapping", "GetModifierMapping", "major 120", "major 121", "major 122", "major 123", "major 124", "major 125", "major 126", "NoOperation", }; bool xutil_error_init(const xcb_generic_error_t *e, xutil_error_t *err) { if(e->response_type != 0) /* This is not an error, this _should_ not happen */ return false; /* * Get the request code, taken from 'xcb-util/wm'. I can't figure * out how it works BTW, seems to get a byte in 'pad' member * (second byte in second element of the array) */ err->request_code = *((uint8_t *) e + 10); /* Extensions generally provide their own requests so we just * store the request code */ if(err->request_code >= (sizeof(xutil_label_request) / sizeof(char *))) a_asprintf(&err->request_label, "%d", err->request_code); else err->request_label = a_strdup(xutil_label_request[err->request_code]); /* Extensions may also define their own errors, so just store the * error_code */ if(e->error_code >= (sizeof(xutil_label_error) / sizeof(char *))) a_asprintf(&err->error_label, "%d", e->error_code); else err->error_label = a_strdup(xutil_label_error[e->error_code]); return true; } xcb_keysym_t xutil_key_mask_fromstr(const char *keyname, size_t len) { switch(a_tokenize(keyname, len)) { case A_TK_SHIFT: return XCB_MOD_MASK_SHIFT; case A_TK_LOCK: return XCB_MOD_MASK_LOCK; case A_TK_CTRL: case A_TK_CONTROL: return XCB_MOD_MASK_CONTROL; case A_TK_MOD1: return XCB_MOD_MASK_1; case A_TK_MOD2: return XCB_MOD_MASK_2; case A_TK_MOD3: return XCB_MOD_MASK_3; case A_TK_MOD4: return XCB_MOD_MASK_4; case A_TK_MOD5: return XCB_MOD_MASK_5; default: return XCB_NO_SYMBOL; } } /** Permit to use mouse with many more buttons */ #ifndef XCB_BUTTON_INDEX_6 #define XCB_BUTTON_INDEX_6 6 #endif #ifndef XCB_BUTTON_INDEX_7 #define XCB_BUTTON_INDEX_7 7 #endif #ifndef XCB_BUTTON_INDEX_8 #define XCB_BUTTON_INDEX_8 8 #endif #ifndef XCB_BUTTON_INDEX_9 #define XCB_BUTTON_INDEX_9 9 #endif /** Link a name to a mouse button symbol */ typedef struct { int id; unsigned int button; } mouse_button_t; /** Lookup for a mouse button from its index. * \param button Mouse button index. * \return Mouse button or 0 if not found. */ unsigned int xutil_button_fromint(int button) { /** List of button name and corresponding X11 mask codes */ static const mouse_button_t mouse_button_list[] = { { 1, XCB_BUTTON_INDEX_1 }, { 2, XCB_BUTTON_INDEX_2 }, { 3, XCB_BUTTON_INDEX_3 }, { 4, XCB_BUTTON_INDEX_4 }, { 5, XCB_BUTTON_INDEX_5 }, { 6, XCB_BUTTON_INDEX_6 }, { 7, XCB_BUTTON_INDEX_7 }, { 8, XCB_BUTTON_INDEX_8 }, { 9, XCB_BUTTON_INDEX_9 } }; if(button >= 1 && button <= countof(mouse_button_list)) return mouse_button_list[button - 1].button; return 0; } /** Convert a root window a physical screen ID. * \param connection The connection to the X server. * \param root Root window. * \return A physical screen number. */ int xutil_root2screen(xcb_connection_t *connection, xcb_window_t root) { xcb_screen_iterator_t iter; int phys_screen = 0; for(iter = xcb_setup_roots_iterator(xcb_get_setup(connection)); iter.rem && iter.data->root != root; xcb_screen_next(&iter), ++phys_screen); return phys_screen; } // vim: filetype=c:expandtab:shiftwidth=4:tabstop=8:softtabstop=4:encoding=utf-8:textwidth=80