/* * 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. * */ /* asprintf() */ #define _GNU_SOURCE #include #include #include #include "common/util.h" #include "common/xutil.h" #include "common/atoms.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_property_cookie_t prop_c; xcb_get_property_reply_t *prop_r; prop_c = xcb_get_property_unchecked(conn, false, w, atom, XCB_GET_PROPERTY_TYPE_ANY, 0L, 1000000L); prop_r = xcb_get_property_reply(conn, prop_c, NULL); if(!prop_r || !prop_r->value_len || prop_r->format != 8) { p_delete(&prop_r); return false; } /* Check whether the returned property value is just an ascii * string or utf8 string. At the moment it doesn't handle * COMPOUND_TEXT and multibyte but it's not needed... */ if(text && (prop_r->type == STRING || prop_r->type == UTF8_STRING)) { void *prop_val = xcb_get_property_value(prop_r); *text = p_new(char, prop_r->value_len + 1); /* use memcpy() because prop_val may not be \0 terminated */ memcpy(*text, prop_val, prop_r->value_len); (*text)[prop_r->value_len] = '\0'; *len = prop_r->value_len; } p_delete(&prop_r); return true; } void xutil_lock_mask_get(xcb_connection_t *conn, 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(conn, xcb_get_modifier_mapping_unchecked(conn), 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); } bool xutil_class_hint_get(xcb_connection_t *conn, xcb_window_t win, xutil_class_hint_t *ch) { xcb_get_property_reply_t *class_hint_r; xcb_get_property_cookie_t class_hint_c; char *data; int len_name, len_class; class_hint_c = xcb_get_property_unchecked(conn, false, win, WM_CLASS, STRING, 0L, 2048L); class_hint_r = xcb_get_property_reply(conn, class_hint_c, NULL); if(!class_hint_r || class_hint_r->type != STRING || class_hint_r->format != 8) { p_delete(&class_hint_r); return false; } data = xcb_get_property_value(class_hint_r); len_name = a_strlen(data); len_class = a_strlen(data + len_name + 1); ch->res_name = a_strndup(data, len_name); ch->res_class = a_strndup(data + len_name + 1, len_class); p_delete(&class_hint_r); return true; } /* Number of different errors */ #define ERRORS_NBR 256 /* Number of different events */ #define EVENTS_NBR 126 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_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", }; xutil_error_t * xutil_error_get(const xcb_generic_error_t *e) { if(e->response_type != 0) /* This is not an error, this _should_ not happen */ return NULL; xutil_error_t *err = p_new(xutil_error_t, 1); /* * 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 *))) 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 *))) asprintf(&err->error_label, "%d", e->error_code); else err->error_label = a_strdup(xutil_label_error[e->error_code]); return err; } void xutil_error_delete(xutil_error_t *err) { p_delete(&err->error_label); p_delete(&err->request_label); p_delete(&err); } /** Link a name to a key symbol */ typedef struct { const char *name; xcb_keysym_t keysym; } keymod_t; xcb_keysym_t xutil_key_mask_fromstr(const char *keyname) { /** List of keyname and corresponding X11 mask codes */ static const keymod_t KeyModList[] = { { "Shift", XCB_MOD_MASK_SHIFT }, { "Lock", XCB_MOD_MASK_LOCK }, { "Control", XCB_MOD_MASK_CONTROL }, { "Ctrl", XCB_MOD_MASK_CONTROL }, { "Mod1", XCB_MOD_MASK_1 }, { "Mod2", XCB_MOD_MASK_2 }, { "Mod3", XCB_MOD_MASK_3 }, { "Mod4", XCB_MOD_MASK_4 }, { "Mod5", XCB_MOD_MASK_5 }, { NULL, XCB_NO_SYMBOL } }; int i; if(keyname) for(i = 0; KeyModList[i].name; i++) if(!a_strcmp(keyname, KeyModList[i].name)) return KeyModList[i].keysym; 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; } /** Equivalent to 'XCreateFontCursor()', error are handled by the * default current error handler. * \param conn The connection to the X server. * \param cursor_font Type of cursor to use. * \return Allocated cursor font. */ xcb_cursor_t xutil_cursor_new(xcb_connection_t *conn, unsigned int cursor_font) { xcb_font_t font; xcb_cursor_t cursor; /* Get the font for the cursor*/ font = xcb_generate_id(conn); xcb_open_font(conn, font, sizeof("cursor")-1, "cursor"); cursor = xcb_generate_id(conn); xcb_create_glyph_cursor(conn, cursor, font, font, cursor_font, cursor_font + 1, 0, 0, 0, 65535, 65535, 65535); return cursor; } // vim: filetype=c:expandtab:shiftwidth=4:tabstop=8:softtabstop=4:encoding=utf-8:textwidth=80