diff options
Diffstat (limited to 'fbxkb.c')
| -rw-r--r-- | fbxkb.c | 537 |
1 files changed, 537 insertions, 0 deletions
@@ -0,0 +1,537 @@ + + + + +#include <stdlib.h> +#include <stdio.h> +#include <ctype.h> +#include <sys/types.h> +#include <sys/stat.h> +#include <unistd.h> +#include <errno.h> +#include <locale.h> +#include <string.h> +#include <signal.h> + +#include <X11/Xlib.h> +#include <gtk/gtk.h> +#include <gdk/gdk.h> + +#include <X11/XKBlib.h> + +#include "config.h" +#include "eggtrayicon.h" +#include "version.h" + +static gchar version[] = VERSION; + + +//#define DEBUG +#include "dbg.h" + +/****************************************************************** + * TYPEDEFS * + ******************************************************************/ +typedef struct _kbd_info { + gchar *sym; + gchar *name; + GdkPixbuf *flag; +} kbd_info; + +#define IMGPREFIX PREFIX "/share/fbxkb/images/" +/****************************************************************** + * GLOBAL VARIABLES * + ******************************************************************/ + +/* X11 common stuff */ +static Atom a_XKB_RULES_NAMES; +static Display *dpy; +static int xkb_event_type; + +/* internal state machine */ +static int cur_group; +static int ngroups; +static GHashTable *sym2pix; +static kbd_info group2info[XkbNumKbdGroups]; +static GdkPixbuf *zzflag; +static int active; +/* gtk gui */ +static GtkWidget *flag_menu; +static GtkWidget *app_menu; +static GtkWidget *docklet; +static GtkWidget *image; +static GtkWidget *about_dialog = NULL; +/****************************************************************** + * DECLARATION * + ******************************************************************/ + +static int init(); +static void read_kbd_description(); +static void update_flag(int no); +static GdkFilterReturn filter( XEvent *xev, GdkEvent *event, gpointer data); +static void Xerror_handler(Display * d, XErrorEvent * ev); +static GdkPixbuf *sym2flag(char *sym); +static void flag_menu_create(); +static void flag_menu_destroy(); +static void flag_menu_activated(GtkWidget *widget, gpointer data); +static void app_menu_create(); +static void app_menu_about(GtkWidget *widget, gpointer data); +static void app_menu_exit(GtkWidget *widget, gpointer data); + +static int docklet_create(); + +static int create_all(); + +/****************************************************************** + * CODE * + ******************************************************************/ + +/****************************************************************** + * gtk gui * + ******************************************************************/ +static void +flag_menu_create() +{ + int i; + GdkPixbuf *flag; + GtkWidget *mi, *img; + //static GString *s = NULL;; + + ENTER; + flag_menu = gtk_menu_new(); + for (i = 0; i < ngroups; i++) { + mi = gtk_image_menu_item_new_with_label( + group2info[i].name ? group2info[i].name : group2info[i].sym); + g_signal_connect(G_OBJECT(mi), "activate", (GCallback)flag_menu_activated, GINT_TO_POINTER(i)); + gtk_menu_shell_append (GTK_MENU_SHELL (flag_menu), mi); + gtk_widget_show (mi); + flag = sym2flag(group2info[i].sym); + img = gtk_image_new_from_pixbuf(flag); + gtk_widget_show(img); + gtk_image_menu_item_set_image(GTK_IMAGE_MENU_ITEM(mi), img); + } + RET(); +} + +static void +flag_menu_destroy() +{ + if (flag_menu) { + gtk_widget_destroy(flag_menu); + flag_menu = NULL; + } +} + +static void +flag_menu_activated(GtkWidget *widget, gpointer data) +{ + int i; + + ENTER; + i = GPOINTER_TO_INT(data); + DBG("asking %d group\n", i); + XkbLockGroup(dpy, XkbUseCoreKbd, i); + RET(); +} + +static void +app_menu_create() +{ + GtkWidget *mi; + + ENTER; + app_menu = gtk_menu_new(); + + mi = gtk_image_menu_item_new_from_stock(GTK_STOCK_DIALOG_INFO, NULL); + g_signal_connect(G_OBJECT(mi), "activate", (GCallback)app_menu_about, NULL); + gtk_menu_shell_append (GTK_MENU_SHELL (app_menu), mi); + gtk_widget_show (mi); + + + mi = gtk_menu_item_new (); + gtk_widget_show (mi); + gtk_menu_shell_append (GTK_MENU_SHELL (app_menu), mi); + gtk_widget_set_sensitive (mi, FALSE); + + mi = gtk_image_menu_item_new_from_stock(GTK_STOCK_QUIT, NULL); + g_signal_connect(G_OBJECT(mi), "activate", (GCallback)app_menu_exit, NULL); + gtk_menu_shell_append (GTK_MENU_SHELL (app_menu), mi); + gtk_widget_show (mi); + RET(); + +} + +static void +app_menu_about(GtkWidget *widget, gpointer data) +{ + ENTER; + if (!about_dialog) { + about_dialog = gtk_message_dialog_new (NULL, + GTK_DIALOG_DESTROY_WITH_PARENT, + GTK_MESSAGE_INFO, + GTK_BUTTONS_CLOSE, + "fbxkb %s\nX11 Keyboard switcher\nAuthor: Anatoly Asviyan <aanatoly@users.sf.net>", version); + /* Destroy the dialog when the user responds to it (e.g. clicks a button) */ + g_signal_connect_swapped (about_dialog, "response", + G_CALLBACK (gtk_widget_hide), + about_dialog); + } + gtk_widget_show (about_dialog); + RET(); +} + + +static void +app_menu_exit(GtkWidget *widget, gpointer data) +{ + ENTER; + exit(0); + RET(); +} + + +static void docklet_embedded(GtkWidget *widget, void *data) +{ + ENTER; + RET(); +} + +static void docklet_destroyed(GtkWidget *widget, void *data) +{ + ENTER; + //g_object_unref(G_OBJECT(docklet)); + docklet = NULL; + g_idle_add(create_all, NULL); + RET(); +} + + +void docklet_clicked(GtkWidget *button, GdkEventButton *event, void *data) +{ + //GtkWidget *menu; + ENTER; + if (event->type != GDK_BUTTON_PRESS) + RET(); + + if (event->button == 1) { + int no; + + no = (cur_group + 1) % ngroups; + DBG("no=%d\n", no); + XkbLockGroup(dpy, XkbUseCoreKbd, no); + } else if (event->button == 2) { + gtk_menu_popup(GTK_MENU(flag_menu), NULL, NULL, NULL, NULL, event->button, event->time); + } else if (event->button == 3) { + gtk_menu_popup(GTK_MENU(app_menu), NULL, NULL, NULL, NULL, event->button, event->time); + } + RET(); +} + +static int +docklet_create() +{ + GtkWidget *box; + + ENTER; + docklet = (GtkWidget*)egg_tray_icon_new("fbxkb"); + box = gtk_event_box_new(); + image = gtk_image_new(); + //image = gtk_image_new(); + g_signal_connect(G_OBJECT(docklet), "embedded", G_CALLBACK(docklet_embedded), NULL); + g_signal_connect(G_OBJECT(docklet), "destroy", G_CALLBACK(docklet_destroyed), NULL); + g_signal_connect(G_OBJECT(box), "button-press-event", G_CALLBACK(docklet_clicked), NULL); + + gtk_container_set_border_width(GTK_CONTAINER(box), 0); + + gtk_container_add(GTK_CONTAINER(box), image); + gtk_container_add(GTK_CONTAINER(docklet), box); + gtk_widget_show_all(GTK_WIDGET(docklet)); + + RET(1); +} + + +/****************************************************************** + * internal state machine * + ******************************************************************/ +static gboolean +my_str_equal (gchar *a, gchar *b) +{ + return (a[0] == b[0] && a[1] == b[1]); +} + + +static GdkPixbuf * +sym2flag(char *sym) +{ + GdkPixbuf *flag; + static GString *s = NULL; + + ENTER; + g_assert(sym != NULL && strlen(sym) > 1); + flag = g_hash_table_lookup(sym2pix, sym); + if (flag) + RET(flag); + + if (!s) + s = g_string_new(IMGPREFIX "tt.png"); + s->str[s->len-6] = sym[0]; + s->str[s->len-5] = sym[1]; + flag = gdk_pixbuf_new_from_file_at_size(s->str, 24, 24, NULL); + if (!flag) + RET(zzflag); + g_hash_table_insert(sym2pix, g_strdup(sym), flag); + RET(flag); +} + + +static void +read_kbd_description() +{ + unsigned int mask; + XkbDescRec *kbd_desc_ptr; + XkbStateRec xkb_state; + Atom sym_name_atom; + int i; + + ENTER; + // clean up + cur_group = ngroups = 0; + for (i = 0; i < XkbNumKbdGroups; i++) { + g_free(group2info[i].sym); + g_free(group2info[i].name); + /* + if (group2info[i].flag) + g_object_unref(G_OBJECT(group2info[i].flag)); + */ + } + bzero(group2info, sizeof(group2info)); + + // get kbd info + mask = XkbControlsMask | XkbServerMapMask; + kbd_desc_ptr = XkbAllocKeyboard(); + if (!kbd_desc_ptr) { + ERR("can't alloc kbd info\n"); + goto out_us; + } + kbd_desc_ptr->dpy = dpy; + if (XkbGetControls(dpy, XkbAllControlsMask, kbd_desc_ptr) != Success) { + ERR("can't get Xkb controls\n"); + goto out; + } + ngroups = kbd_desc_ptr->ctrls->num_groups; + if (ngroups < 1) + goto out; + if (XkbGetState(dpy, XkbUseCoreKbd, &xkb_state) != Success) { + ERR("can't get Xkb state\n"); + goto out; + } + cur_group = xkb_state.group; + DBG("cur_group = %d ngroups = %d\n", cur_group, ngroups); + g_assert(cur_group < ngroups); + + if (XkbGetNames(dpy, XkbSymbolsNameMask, kbd_desc_ptr) != Success) { + ERR("can't get Xkb symbol description\n"); + goto out; + } + if (XkbGetNames(dpy, XkbGroupNamesMask, kbd_desc_ptr) != Success) + ERR("Failed to get keyboard description\n"); + g_assert(kbd_desc_ptr->names); + sym_name_atom = kbd_desc_ptr->names->symbols; + + // parse kbd info + if (sym_name_atom != None) { + char *sym_name, *tmp, *tok; + int no; + + sym_name = XGetAtomName(dpy, sym_name_atom); + if (!sym_name) + goto out; + /* to know how sym_name might look like do this: + * % xlsatoms | grep pc + * 150 pc/pc(pc101)+pc/us+pc/ru(phonetic):2+group(shift_toggle) + * 470 pc(pc105)+us+ru(phonetic):2+il(phonetic):3+group(shifts_toggle)+group(switch) + */ + DBG("sym_name=%s\n", sym_name); + for (tok = strtok(sym_name, "+"); tok; tok = strtok(NULL, "+")) { + DBG("tok=%s\n", tok); + tmp = strchr(tok, ':'); + if (tmp) { + if (sscanf(tmp+1, "%d", &no) != 1) + ERR("can't read kbd number\n"); + no--; + *tmp = 0; + } else { + no = 0; + } + for (tmp = tok; isalpha(*tmp); tmp++); + *tmp = 0; + + DBG("map=%s no=%d\n", tok, no); + if (!strcmp(tok, "pc") || (strlen(tok) != 2)) + continue; + + g_assert((no >= 0) && (no < ngroups)); + if (group2info[no].sym != NULL) { + ERR("xkb group #%d is already defined\n", no); + } + group2info[no].sym = g_strdup(tok); + group2info[no].flag = sym2flag(tok); + group2info[no].name = XGetAtomName(dpy, kbd_desc_ptr->names->groups[no]); + } + XFree(sym_name); + } + out: + XkbFreeKeyboard(kbd_desc_ptr, 0, True); + // sanity check: group numbering must be continuous + for (i = 0; (i < XkbNumKbdGroups) && (group2info[i].sym != NULL); i++); + if (i != ngroups) { + ERR("kbd group numbering is not continuous\n"); + ERR("run 'xlsatoms | grep pc' to know what happens\n"); + exit(1); + } + out_us: + //if no groups were defined just add default 'us' kbd group + if (!ngroups) { + ngroups = 1; + cur_group = 0; + group2info[0].sym = g_strdup("us"); + group2info[0].flag = sym2flag("us"); + group2info[0].name = NULL; + ERR("no kbd groups defined. adding default 'us' group\n"); + } + RET(); +} + + + +static void update_flag(int no) +{ + kbd_info *k = &group2info[no]; + ENTER; + g_assert(k != NULL); + DBG("k->sym=%s\n", k->sym); + gtk_image_set_from_pixbuf(GTK_IMAGE(image), k->flag); + RET(); +} + + + +static GdkFilterReturn +filter( XEvent *xev, GdkEvent *event, gpointer data) +{ + ENTER; + if (!active) + RET(GDK_FILTER_CONTINUE); + + if (xev->type == xkb_event_type) { + XkbEvent *xkbev = (XkbEvent *) xev; + DBG("XkbTypeEvent %d \n", xkbev->any.xkb_type); + if (xkbev->any.xkb_type == XkbStateNotify) { + DBG("XkbStateNotify: %d\n", xkbev->state.group); + cur_group = xkbev->state.group; + if (cur_group < ngroups) + update_flag(cur_group); + } else if (xkbev->any.xkb_type == XkbNewKeyboardNotify) { + DBG("XkbNewKeyboardNotify\n"); + read_kbd_description(); + //cur_group = 0; + update_flag(cur_group); + flag_menu_destroy(); + flag_menu_create(); + } + RET(GDK_FILTER_REMOVE); + } + RET(GDK_FILTER_CONTINUE); +} + +static int +init() +{ + int dummy; + + ENTER; + sym2pix = g_hash_table_new(g_str_hash, (GEqualFunc) my_str_equal); + dpy = gdk_x11_get_default_xdisplay(); + a_XKB_RULES_NAMES = XInternAtom(dpy, "_XKB_RULES_NAMES", False); + if (a_XKB_RULES_NAMES == None) + ERR("_XKB_RULES_NAMES - can't get this atom\n"); + + if (!XkbQueryExtension(dpy, &dummy, &xkb_event_type, &dummy, &dummy, &dummy)) + RET(0); + DBG("xkb_event_type=%d\n", xkb_event_type); + XkbSelectEventDetails(dpy, XkbUseCoreKbd, XkbStateNotify, + XkbAllStateComponentsMask, XkbGroupStateMask); + gdk_window_add_filter(NULL, (GdkFilterFunc)filter, NULL); + zzflag = gdk_pixbuf_new_from_file_at_size(IMGPREFIX "zz.png", 24, 24, NULL); + RET(1); +} + +#if 0 + + +static void +app_menu_destroy() +{ + ENTER; + if (app_menu) { + gtk_widget_destroy(app_menu); + app_menu = NULL; + } + RET(); +} + +static void +destroy_all() +{ + active = 0; + gdk_window_remove_filter(NULL, (GdkFilterFunc)filter, NULL); + XkbSelectEventDetails(dpy, XkbUseCoreKbd, XkbStateNotify, + XkbAllStateComponentsMask, 0UL); + flag_menu_destroy(); + app_menu_destroy(); +} +#endif + +static int +create_all() +{ + ENTER; + read_kbd_description(); + docklet_create(); + flag_menu_create(); + app_menu_create(); + update_flag(cur_group); + active = 1; + RET(FALSE);// FALSE will remove us from idle func +} + +int +main(int argc, char *argv[], char *env[]) +{ + ENTER; + setlocale(LC_ALL, ""); + gtk_init(&argc, &argv); + XSetLocaleModifiers(""); + XSetErrorHandler((XErrorHandler) Xerror_handler); + + if (!init()) + ERR("can't init. exiting\n"); + create_all(); + gtk_main (); + RET(0); +} + + +/********************************************************************/ + +void +Xerror_handler(Display * d, XErrorEvent * ev) +{ + char buf[256]; + + ENTER; + XGetErrorText(gdk_x11_get_default_xdisplay(), ev->error_code, buf, 256); + ERR( "fbxkb : X error: %s\n", buf); + RET(); +} |