+/* Device functions for X windows.
+ Copyright (C) 1994, 1995 Board of Trustees, University of Illinois.
+ Copyright (C) 1994, 1995 Free Software Foundation, Inc.
+
+This file is part of XEmacs.
+
+XEmacs 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, or (at your option) any
+later version.
+
+XEmacs 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 XEmacs; see the file COPYING. If not, write to
+the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+Boston, MA 02111-1307, USA. */
+
+/* Synched up with: Not in FSF. */
+
+/* Original authors: Jamie Zawinski and the FSF */
+/* Rewritten by Ben Wing and Chuck Thompson. */
+
+#include <config.h>
+#include "lisp.h"
+
+#include "console-x.h"
+#include "xintrinsicp.h" /* CoreP.h needs this */
+#include <X11/CoreP.h> /* Numerous places access the fields of
+ a core widget directly. We could
+ use XtGetValues(), but ... */
+#include "xgccache.h"
+#include <X11/Shell.h>
+#include "xmu.h"
+#include "glyphs-x.h"
+#include "objects-x.h"
+
+#include "buffer.h"
+#include "events.h"
+#include "faces.h"
+#include "frame.h"
+#include "redisplay.h"
+#include "sysdep.h"
+#include "window.h"
+
+#include "sysfile.h"
+#include "systime.h"
+
+#ifdef HAVE_OFFIX_DND
+#include "offix.h"
+#endif
+
+Lisp_Object Vdefault_x_device;
+#if defined(MULE) && (defined(LWLIB_MENUBARS_MOTIF) || defined(HAVE_XIM) || defined (USE_XFONTSET))
+Lisp_Object Vx_app_defaults_directory;
+#endif
+
+/* Qdisplay in general.c */
+Lisp_Object Qx_error;
+Lisp_Object Qinit_pre_x_win, Qinit_post_x_win;
+
+/* \e$B@ZJ"\e(B, n. Japanese ritual suicide. */
+int x_seppuku_on_epipe;
+
+/* The application class of Emacs. */
+Lisp_Object Vx_emacs_application_class;
+
+Lisp_Object Vx_initial_argv_list; /* #### ugh! */
+
+static XrmOptionDescRec emacs_options[] =
+{
+ {"-geometry", ".geometry", XrmoptionSepArg, NULL},
+ {"-iconic", ".iconic", XrmoptionNoArg, "yes"},
+
+ {"-internal-border-width", "*EmacsFrame.internalBorderWidth", XrmoptionSepArg, NULL},
+ {"-ib", "*EmacsFrame.internalBorderWidth", XrmoptionSepArg, NULL},
+ {"-scrollbar-width", "*EmacsFrame.scrollBarWidth", XrmoptionSepArg, NULL},
+ {"-scrollbar-height", "*EmacsFrame.scrollBarHeight", XrmoptionSepArg, NULL},
+
+ {"-privatecolormap", ".privateColormap", XrmoptionNoArg, "yes"},
+ {"-visual", ".EmacsVisual", XrmoptionSepArg, NULL},
+
+ /* #### Beware! If the type of the shell changes, update this. */
+ {"-T", "*TopLevelEmacsShell.title", XrmoptionSepArg, NULL},
+ {"-wn", "*TopLevelEmacsShell.title", XrmoptionSepArg, NULL},
+ {"-title", "*TopLevelEmacsShell.title", XrmoptionSepArg, NULL},
+
+ {"-iconname", "*TopLevelEmacsShell.iconName", XrmoptionSepArg, NULL},
+ {"-in", "*TopLevelEmacsShell.iconName", XrmoptionSepArg, NULL},
+ {"-mc", "*pointerColor", XrmoptionSepArg, NULL},
+ {"-cr", "*cursorColor", XrmoptionSepArg, NULL},
+ {"-fontset", "*FontSet", XrmoptionSepArg, NULL},
+};
+
+/* Functions to synchronize mirroring resources and specifiers */
+int in_resource_setting;
+\f
+/************************************************************************/
+/* helper functions */
+/************************************************************************/
+
+/* JH 97/11/25 removed the static declaration because I need it during setup in event-Xt... */
+struct device * get_device_from_display_1 (Display *dpy);
+struct device *
+get_device_from_display_1 (Display *dpy)
+{
+ Lisp_Object devcons, concons;
+
+ DEVICE_LOOP_NO_BREAK (devcons, concons)
+ {
+ struct device *d = XDEVICE (XCAR (devcons));
+ if (DEVICE_X_P (d) && DEVICE_X_DISPLAY (d) == dpy)
+ return d;
+ }
+
+ return 0;
+}
+
+struct device *
+get_device_from_display (Display *dpy)
+{
+ struct device *d = get_device_from_display_1 (dpy);
+
+#if !defined(INFODOCK)
+# define FALLBACK_RESOURCE_NAME "xemacs"
+# else
+# define FALLBACK_RESOURCE_NAME "infodock"
+#endif
+
+ if (!d) {
+ /* This isn't one of our displays. Let's crash? */
+ stderr_out
+ ("\n%s: Fatal X Condition. Asked about display we don't own: \"%s\"\n",
+ (STRINGP (Vinvocation_name) ?
+ (char *) XSTRING_DATA (Vinvocation_name) : FALLBACK_RESOURCE_NAME),
+ DisplayString (dpy) ? DisplayString (dpy) : "???");
+ abort();
+ }
+
+#undef FALLBACK_RESOURCE_NAME
+
+ return d;
+}
+
+struct device *
+decode_x_device (Lisp_Object device)
+{
+ XSETDEVICE (device, decode_device (device));
+ CHECK_X_DEVICE (device);
+ return XDEVICE (device);
+}
+
+static Display *
+get_x_display (Lisp_Object device)
+{
+ return DEVICE_X_DISPLAY (decode_x_device (device));
+}
+
+\f
+/************************************************************************/
+/* initializing an X connection */
+/************************************************************************/
+
+static void
+allocate_x_device_struct (struct device *d)
+{
+ d->device_data = xnew_and_zero (struct x_device);
+}
+
+static void
+Xatoms_of_device_x (struct device *d)
+{
+ Display *D = DEVICE_X_DISPLAY (d);
+
+ DEVICE_XATOM_WM_PROTOCOLS (d) = XInternAtom (D, "WM_PROTOCOLS", False);
+ DEVICE_XATOM_WM_DELETE_WINDOW(d) = XInternAtom (D, "WM_DELETE_WINDOW",False);
+ DEVICE_XATOM_WM_SAVE_YOURSELF(d) = XInternAtom (D, "WM_SAVE_YOURSELF",False);
+ DEVICE_XATOM_WM_TAKE_FOCUS (d) = XInternAtom (D, "WM_TAKE_FOCUS", False);
+ DEVICE_XATOM_WM_STATE (d) = XInternAtom (D, "WM_STATE", False);
+}
+
+static void
+sanity_check_geometry_resource (Display *dpy)
+{
+ char *app_name, *app_class, *s;
+ char buf1 [255], buf2 [255];
+ char *type;
+ XrmValue value;
+ XtGetApplicationNameAndClass (dpy, &app_name, &app_class);
+ strcpy (buf1, app_name);
+ strcpy (buf2, app_class);
+ for (s = buf1; *s; s++) if (*s == '.') *s = '_';
+ strcat (buf1, "._no_._such_._resource_.geometry");
+ strcat (buf2, "._no_._such_._resource_.Geometry");
+ if (XrmGetResource (XtDatabase (dpy), buf1, buf2, &type, &value) == True)
+ {
+ warn_when_safe (Qgeometry, Qerror,
+ "\n"
+"Apparently \"%s*geometry: %s\" or \"%s*geometry: %s\" was\n"
+"specified in the resource database. Specifying \"*geometry\" will make\n"
+"XEmacs (and most other X programs) malfunction in obscure ways. (i.e.\n"
+"the Xt or Xm libraries will probably crash, which is a very bad thing.)\n"
+"You should always use \".geometry\" or \"*EmacsFrame.geometry\" instead.\n",
+ app_name, (char *) value.addr,
+ app_class, (char *) value.addr);
+ suppress_early_error_handler_backtrace = 1;
+ error ("Invalid geometry resource");
+ }
+}
+
+static void
+x_init_device_class (struct device *d)
+{
+ if (DEVICE_X_DEPTH(d) > 2)
+ {
+ switch (DEVICE_X_VISUAL(d)->class)
+ {
+ case StaticGray:
+ case GrayScale:
+ DEVICE_CLASS (d) = Qgrayscale;
+ break;
+ default:
+ DEVICE_CLASS (d) = Qcolor;
+ }
+ }
+ else
+ DEVICE_CLASS (d) = Qmono;
+}
+
+/*
+ * Figure out what application name to use for xemacs
+ *
+ * Since we have decomposed XtOpenDisplay into XOpenDisplay and
+ * XtDisplayInitialize, we no longer get this for free.
+ *
+ * If there is a `-name' argument in argv, use that.
+ * Otherwise use the last component of argv[0].
+ *
+ * I have removed the gratuitous use of getenv("RESOURCE_NAME")
+ * which was in X11R5, but left the matching of any prefix of `-name'.
+ * Finally, if all else fails, return `xemacs', as it is more
+ * appropriate (X11R5 returns `main').
+ */
+static char *
+compute_x_app_name (int argc, char **argv)
+{
+ int i;
+ char *ptr;
+
+ for (i = 1; i < argc - 1; i++)
+ if (!strncmp(argv[i], "-name", max (2, strlen (argv[1]))))
+ return argv[i+1];
+
+ if (argc > 0 && argv[0] && *argv[0])
+ return (ptr = strrchr (argv[0], '/')) ? ++ptr : argv[0];
+
+ return "xemacs";
+}
+
+/*
+ * This function figures out whether the user has any resources of the
+ * form "XEmacs.foo" or "XEmacs*foo".
+ *
+ * Currently we only consult the display's global resources; to look
+ * for screen specific resources, we would need to also consult:
+ * xdefs = XScreenResourceString(ScreenOfDisplay(dpy, scrno));
+ */
+static int
+have_xemacs_resources_in_xrdb (Display *dpy)
+{
+ char *xdefs, *key;
+ int len;
+
+#ifdef INFODOCK
+ key = "InfoDock";
+#else
+ key = "XEmacs";
+#endif
+ len = strlen (key);
+
+ if (!dpy)
+ return 0;
+
+ xdefs = XResourceManagerString (dpy); /* don't free - owned by X */
+ while (xdefs && *xdefs)
+ {
+ if (strncmp (xdefs, key, len) == 0 &&
+ (xdefs[len] == '*' || xdefs[len] == '.'))
+ return 1;
+
+ while (*xdefs && *xdefs++ != '\n') /* find start of next entry.. */
+ ;
+ }
+
+ return 0;
+}
+
+/* Only the characters [-_A-Za-z0-9] are allowed in the individual
+ components of a resource. Convert invalid characters to `-' */
+
+static char valid_resource_char_p[256];
+
+static void
+validify_resource_component (char *str, size_t len)
+{
+ for (; len; len--, str++)
+ if (!valid_resource_char_p[(unsigned char) (*str)])
+ *str = '-';
+}
+
+static void
+Dynarr_add_validified_lisp_string (char_dynarr *cda, Lisp_Object str)
+{
+ Bytecount len = XSTRING_LENGTH (str);
+ Dynarr_add_many (cda, (char *) XSTRING_DATA (str), len);
+ validify_resource_component (Dynarr_atp (cda, Dynarr_length (cda) - len), len);
+}
+
+static void
+x_init_device (struct device *d, Lisp_Object props)
+{
+ Lisp_Object display;
+ Lisp_Object device;
+ Display *dpy;
+ Widget app_shell;
+ int argc;
+ char **argv;
+ CONST char *app_class;
+ CONST char *app_name;
+ CONST char *disp_name;
+ Arg xargs[6];
+ Cardinal numargs;
+ Visual *visual = NULL;
+ int depth = 8; /* shut up the compiler */
+ Colormap cmap;
+ int screen;
+
+ XSETDEVICE (device, d);
+ display = DEVICE_CONNECTION (d);
+
+ allocate_x_device_struct (d);
+
+ make_argc_argv (Vx_initial_argv_list, &argc, &argv);
+
+ GET_C_STRING_CTEXT_DATA_ALLOCA (display, disp_name);
+
+ /*
+ * Break apart the old XtOpenDisplay call into XOpenDisplay and
+ * XtDisplayInitialize so we can figure out whether there
+ * are any XEmacs resources in the resource database before
+ * we intitialize Xt. This is so we can automagically support
+ * both `Emacs' and `XEmacs' application classes.
+ */
+ slow_down_interrupts ();
+ /* May not be needed but XtOpenDisplay could not deal with signals here. */
+ dpy = DEVICE_X_DISPLAY (d) = XOpenDisplay (disp_name);
+ speed_up_interrupts ();
+
+ if (dpy == 0)
+ {
+ suppress_early_error_handler_backtrace = 1;
+ signal_simple_error ("X server not responding\n", display);
+ }
+
+ if (STRINGP (Vx_emacs_application_class) &&
+ XSTRING_LENGTH (Vx_emacs_application_class) > 0)
+ GET_C_STRING_CTEXT_DATA_ALLOCA (Vx_emacs_application_class, app_class);
+ else
+ {
+ app_class = (NILP (Vx_emacs_application_class) &&
+ have_xemacs_resources_in_xrdb (dpy))
+#ifdef INFODOCK
+ ? "InfoDock"
+#else
+ ? "XEmacs"
+#endif
+ : "Emacs";
+ /* need to update Vx_emacs_application_class: */
+ Vx_emacs_application_class = build_string (app_class);
+ }
+
+ slow_down_interrupts ();
+ /* May not be needed but XtOpenDisplay could not deal with signals here.
+ Yuck. */
+ XtDisplayInitialize (Xt_app_con, dpy, compute_x_app_name (argc, argv),
+ app_class, emacs_options,
+ XtNumber (emacs_options), &argc, argv);
+ speed_up_interrupts ();
+
+ screen = DefaultScreen(dpy);
+ if (NILP (Vdefault_x_device))
+ Vdefault_x_device = device;
+
+#ifdef MULE
+#if defined(LWLIB_MENUBARS_MOTIF) || defined(HAVE_XIM) || defined (USE_XFONTSET)
+ {
+ /* Read in locale-specific resources from
+ data-directory/app-defaults/$LANG/Emacs.
+ This is in addition to the standard app-defaults files, and
+ does not override resources defined elsewhere */
+ CONST char *data_dir;
+ char *path;
+ XrmDatabase db = XtDatabase (dpy); /* ### XtScreenDatabase(dpy) ? */
+ CONST char *locale = XrmLocaleOfDatabase (db);
+
+ if (STRINGP (Vx_app_defaults_directory) &&
+ XSTRING_LENGTH (Vx_app_defaults_directory) > 0)
+ {
+ GET_C_STRING_FILENAME_DATA_ALLOCA(Vx_app_defaults_directory, data_dir);
+ path = (char *)alloca (strlen (data_dir) + strlen (locale) + 7);
+ sprintf (path, "%s%s/Emacs", data_dir, locale);
+ if (!access (path, R_OK))
+ XrmCombineFileDatabase (path, &db, False);
+ }
+ else if (STRINGP (Vdata_directory) && XSTRING_LENGTH (Vdata_directory) > 0)
+ {
+ GET_C_STRING_FILENAME_DATA_ALLOCA (Vdata_directory, data_dir);
+ path = (char *)alloca (strlen (data_dir) + 13 + strlen (locale) + 7);
+ sprintf (path, "%sapp-defaults/%s/Emacs", data_dir, locale);
+ if (!access (path, R_OK))
+ XrmCombineFileDatabase (path, &db, False);
+ }
+ }
+#endif /* LWLIB_MENUBARS_MOTIF or HAVE_XIM USE_XFONTSET */
+#endif /* MULE */
+
+ if (NILP (DEVICE_NAME (d)))
+ DEVICE_NAME (d) = display;
+
+ /* We're going to modify the string in-place, so be a nice XEmacs */
+ DEVICE_NAME (d) = Fcopy_sequence (DEVICE_NAME (d));
+ /* colons and periods can't appear in individual elements of resource
+ strings */
+
+ XtGetApplicationNameAndClass (dpy, (char **) &app_name, (char **) &app_class);
+ /* search for a matching visual if requested by the user, or setup the display default */
+ numargs = 0;
+ {
+ char *buf1 = (char *)alloca (strlen (app_name) + 17);
+ char *buf2 = (char *)alloca (strlen (app_class) + 17);
+ char *type;
+ XrmValue value;
+
+ sprintf (buf1, "%s.emacsVisual", app_name);
+ sprintf (buf2, "%s.EmacsVisual", app_class);
+ if (XrmGetResource (XtDatabase (dpy), buf1, buf2, &type, &value) == True)
+ {
+ int cnt = 0, vis_class= PseudoColor;
+ XVisualInfo vinfo;
+ char *res, *str = (char*)value.addr;
+
+ if (strncmp(str, "StaticGray", 10) == 0) cnt = 10, vis_class = StaticGray;
+ else if (strncmp(str, "StaticColor", 11) == 0) cnt = 11, vis_class = StaticColor;
+ else if (strncmp(str, "TrueColor", 9) == 0) cnt = 9, vis_class = TrueColor;
+ else if (strncmp(str, "GrayScale", 9) == 0) cnt = 9, vis_class = GrayScale;
+ else if (strncmp(str, "PseudoColor", 11) == 0) cnt = 11, vis_class = PseudoColor;
+ else if (strncmp(str, "DirectColor", 11) == 0) cnt = 11, vis_class = DirectColor;
+ if (cnt)
+ {
+ res = str + cnt;
+ depth = atoi(res);
+ if (depth == 0)
+ {
+ stderr_out("Invalid Depth specification in %s... ignoring...\n",(char*)str);
+ }
+ else
+ {
+ if (XMatchVisualInfo(dpy, screen, depth, vis_class, &vinfo))
+ {
+ visual = vinfo.visual;
+ }
+ else
+ {
+ stderr_out("Can't match the requested visual %s... using defaults\n",str);
+ }
+ }
+ }
+ else
+ {
+ stderr_out("Invalid Visual specification in %s... ignoring.\n",(char*)str);
+ }
+ }
+ if (visual == NULL)
+ {
+ visual = DefaultVisual(dpy, screen);
+ depth = DefaultDepth(dpy, screen);
+ }
+
+ /* If we've got the same visual as the default and it's PseudoColor,
+ check to see if the user specified that we need a private colormap */
+ if (visual == DefaultVisual(dpy, screen))
+ {
+ sprintf (buf1, "%s.privateColormap", app_name);
+ sprintf (buf2, "%s.PrivateColormap", app_class);
+ if ((visual->class == PseudoColor) &&
+ (XrmGetResource (XtDatabase (dpy), buf1, buf2, &type, &value) == True))
+ {
+ cmap = XCopyColormapAndFree(dpy, DefaultColormap(dpy, screen));
+ }
+ else
+ {
+ cmap = DefaultColormap(dpy, screen);
+ }
+ }
+ else
+ {
+ /* We have to create a matching colormap anyway...
+ ### think about using standard colormaps (need the Xmu libs?) */
+ cmap = XCreateColormap(dpy, RootWindow(dpy, screen), visual, AllocNone);
+ XInstallColormap(dpy, cmap);
+ }
+ }
+ XtSetArg(xargs[numargs],XtNvisual, visual); numargs++;
+ XtSetArg(xargs[numargs],XtNdepth, depth); numargs++;
+ XtSetArg(xargs[numargs],XtNcolormap, cmap); numargs++;
+ DEVICE_X_VISUAL (d) = visual;
+ DEVICE_X_COLORMAP (d) = cmap;
+ DEVICE_X_DEPTH (d) = depth;
+
+ validify_resource_component ((char *) XSTRING_DATA (DEVICE_NAME (d)),
+ XSTRING_LENGTH (DEVICE_NAME (d)));
+ app_shell = XtAppCreateShell (NULL, app_class,
+ applicationShellWidgetClass,
+ dpy, xargs, numargs);
+
+ DEVICE_XT_APP_SHELL (d) = app_shell;
+#ifdef HAVE_XIM
+ XIM_init_device(d);
+#endif /* HAVE_XIM */
+
+ /* Realize the app_shell so that its window exists for GC creation purposes,
+ and set it to the size of the root window for child placement purposes */
+ {
+ Screen *scrn = ScreenOfDisplay(dpy, screen);
+ int screen_width, screen_height;
+ screen_width = WidthOfScreen(scrn);
+ screen_height = HeightOfScreen(scrn);
+ numargs = 0;
+ XtSetArg (xargs[numargs], XtNmappedWhenManaged, False); numargs++;
+ XtSetArg (xargs[numargs], XtNx, 0); numargs++;
+ XtSetArg (xargs[numargs], XtNy, 0); numargs++;
+ XtSetArg (xargs[numargs], XtNwidth, screen_width); numargs++;
+ XtSetArg (xargs[numargs], XtNheight, screen_height); numargs++;
+ XtSetValues (app_shell, xargs, numargs);
+ XtRealizeWidget (app_shell);
+ }
+#ifdef HAVE_SESSION
+ {
+ int new_argc;
+ char **new_argv;
+ make_argc_argv (Vcommand_line_args, &new_argc, &new_argv);
+ XSetCommand (XtDisplay (app_shell), XtWindow (app_shell), new_argv, new_argc);
+ free_argc_argv (new_argv);
+ }
+#endif /* HAVE_SESSION */
+
+
+#ifdef HAVE_OFFIX_DND
+ DndInitialize ( app_shell );
+#endif
+
+ Vx_initial_argv_list = make_arg_list (argc, argv);
+ free_argc_argv (argv);
+
+ DEVICE_X_WM_COMMAND_FRAME (d) = Qnil;
+
+ sanity_check_geometry_resource (dpy);
+
+ /* In event-Xt.c */
+ x_init_modifier_mapping (d);
+
+ DEVICE_INFD (d) = DEVICE_OUTFD (d) = ConnectionNumber (dpy);
+ init_baud_rate (d);
+ init_one_device (d);
+
+ DEVICE_X_GC_CACHE (d) = make_gc_cache (dpy, XtWindow(app_shell));
+ DEVICE_X_GRAY_PIXMAP (d) = None;
+ Xatoms_of_device_x (d);
+ Xatoms_of_xselect (d);
+ Xatoms_of_objects_x (d);
+ x_init_device_class (d);
+
+ /* Run the elisp side of the X device initialization. */
+ call0 (Qinit_pre_x_win);
+}
+
+static void
+x_finish_init_device (struct device *d, Lisp_Object props)
+{
+ call0 (Qinit_post_x_win);
+}
+
+static void
+x_mark_device (struct device *d, void (*markobj) (Lisp_Object))
+{
+ ((markobj) (DEVICE_X_WM_COMMAND_FRAME (d)));
+ ((markobj) (DEVICE_X_DATA (d)->x_keysym_map_hashtable));
+}
+
+\f
+/************************************************************************/
+/* closing an X connection */
+/************************************************************************/
+
+static void
+free_x_device_struct (struct device *d)
+{
+ xfree (d->device_data);
+}
+
+static void
+x_delete_device (struct device *d)
+{
+ Lisp_Object device;
+ Display *display;
+#ifdef FREE_CHECKING
+ extern void (*__free_hook)();
+ int checking_free;
+#endif
+
+ XSETDEVICE (device, d);
+ display = DEVICE_X_DISPLAY (d);
+
+ if (display)
+ {
+#ifdef FREE_CHECKING
+ checking_free = (__free_hook != 0);
+
+ /* Disable strict free checking, to avoid bug in X library */
+ if (checking_free)
+ disable_strict_free_check ();
+#endif
+
+ free_gc_cache (DEVICE_X_GC_CACHE (d));
+ if (DEVICE_X_DATA (d)->x_modifier_keymap)
+ XFreeModifiermap (DEVICE_X_DATA (d)->x_modifier_keymap);
+ if (DEVICE_X_DATA (d)->x_keysym_map)
+ XFree ((char *) DEVICE_X_DATA (d)->x_keysym_map);
+
+ XtCloseDisplay (display);
+ DEVICE_X_DISPLAY (d) = 0;
+#ifdef FREE_CHECKING
+ if (checking_free)
+ enable_strict_free_check ();
+#endif
+ }
+
+ if (EQ (device, Vdefault_x_device))
+ {
+ Lisp_Object devcons, concons;
+ /* #### handle deleting last X device */
+ Vdefault_x_device = Qnil;
+ DEVICE_LOOP_NO_BREAK (devcons, concons)
+ {
+ if (DEVICE_X_P (XDEVICE (XCAR (devcons))) &&
+ !EQ (device, XCAR (devcons)))
+ {
+ Vdefault_x_device = XCAR (devcons);
+ goto double_break;
+ }
+ }
+ }
+ double_break:
+ free_x_device_struct (d);
+}
+
+\f
+/************************************************************************/
+/* handle X errors */
+/************************************************************************/
+
+CONST char *
+x_event_name (int event_type)
+{
+ static CONST char *events[] =
+ {
+ "0: ERROR!",
+ "1: REPLY",
+ "KeyPress",
+ "KeyRelease",
+ "ButtonPress",
+ "ButtonRelease",
+ "MotionNotify",
+ "EnterNotify",
+ "LeaveNotify",
+ "FocusIn",
+ "FocusOut",
+ "KeymapNotify",
+ "Expose",
+ "GraphicsExpose",
+ "NoExpose",
+ "VisibilityNotify",
+ "CreateNotify",
+ "DestroyNotify",
+ "UnmapNotify",
+ "MapNotify",
+ "MapRequest",
+ "ReparentNotify",
+ "ConfigureNotify",
+ "ConfigureRequest",
+ "GravityNotify",
+ "ResizeRequest",
+ "CirculateNotify",
+ "CirculateRequest",
+ "PropertyNotify",
+ "SelectionClear",
+ "SelectionRequest",
+ "SelectionNotify",
+ "ColormapNotify",
+ "ClientMessage",
+ "MappingNotify",
+ "LASTEvent"
+ };
+
+ if (event_type < 0 || event_type >= countof (events))
+ return NULL;
+ return events [event_type];
+}
+
+/* Handling errors.
+
+ If an X error occurs which we are not expecting, we have no alternative
+ but to print it to stderr. It would be nice to stuff it into a pop-up
+ buffer, or to print it in the minibuffer, but that's not possible, because
+ one is not allowed to do any I/O on the display connection from an error
+ handler. The guts of Xlib expect these functions to either return or exit.
+
+ However, there are occasions when we might expect an error to reasonably
+ occur. The interface to this is as follows:
+
+ Before calling some X routine which may error, call
+ expect_x_error (dpy);
+
+ Just after calling the X routine, call either:
+
+ x_error_occurred_p (dpy);
+
+ to ask whether an error happened (and was ignored), or:
+
+ signal_if_x_error (dpy, resumable_p);
+
+ which will call Fsignal() with args appropriate to the X error, if there
+ was one. (Resumable_p is whether the debugger should be allowed to
+ continue from the call to signal.)
+
+ You must call one of these two routines immediately after calling the X
+ routine; think of them as bookends like BLOCK_INPUT and UNBLOCK_INPUT.
+ */
+
+static int error_expected;
+static int error_occurred;
+static XErrorEvent last_error;
+
+/* OVERKILL! */
+
+#ifdef EXTERNAL_WIDGET
+static Lisp_Object
+x_error_handler_do_enqueue (Lisp_Object frame)
+{
+ enqueue_magic_eval_event (io_error_delete_frame, frame);
+ return Qt;
+}
+
+static Lisp_Object
+x_error_handler_error (Lisp_Object data, Lisp_Object dummy)
+{
+ return Qnil;
+}
+#endif /* EXTERNAL_WIDGET */
+
+int
+x_error_handler (Display *disp, XErrorEvent *event)
+{
+ if (error_expected)
+ {
+ error_expected = 0;
+ error_occurred = 1;
+ last_error = *event;
+ }
+ else
+ {
+#ifdef EXTERNAL_WIDGET
+ struct frame *f;
+ struct device *d = get_device_from_display (disp);
+
+ if ((event->error_code == BadWindow ||
+ event->error_code == BadDrawable)
+ && ((f = x_any_window_to_frame (d, event->resourceid)) != 0))
+ {
+ Lisp_Object frame;
+
+ /* one of the windows comprising one of our frames has died.
+ This occurs particularly with ExternalShell frames when the
+ client that owns the ExternalShell's window dies.
+
+ We cannot do any I/O on the display connection so we need
+ to enqueue an eval event so that the deletion happens
+ later.
+
+ Furthermore, we need to trap any errors (out-of-memory) that
+ may occur when Fenqueue_eval_event is called.
+ */
+
+ if (f->being_deleted)
+ return 0;
+ XSETFRAME (frame, f);
+ if (!NILP (condition_case_1 (Qerror, x_error_handler_do_enqueue,
+ frame, x_error_handler_error, Qnil)))
+ {
+ f->being_deleted = 1;
+ f->visible = 0;
+ }
+ return 0;
+ }
+#endif /* EXTERNAL_WIDGET */
+
+ stderr_out ("\n%s: ",
+ (STRINGP (Vinvocation_name)
+ ? (char *) XSTRING_DATA (Vinvocation_name)
+ : "xemacs"));
+ XmuPrintDefaultErrorMessage (disp, event, stderr);
+ }
+ return 0;
+}
+
+void
+expect_x_error (Display *dpy)
+{
+ assert (!error_expected);
+ XSync (dpy, 0); /* handle pending errors before setting flag */
+ error_expected = 1;
+ error_occurred = 0;
+}
+
+int
+x_error_occurred_p (Display *dpy)
+{
+ int val;
+ XSync (dpy, 0); /* handle pending errors before setting flag */
+ val = error_occurred;
+ error_expected = 0;
+ error_occurred = 0;
+ return val;
+}
+
+int
+signal_if_x_error (Display *dpy, int resumable_p)
+{
+ char buf[1024];
+ Lisp_Object data;
+ if (! x_error_occurred_p (dpy))
+ return 0;
+ data = Qnil;
+ sprintf (buf, "0x%X", (unsigned int) last_error.resourceid);
+ data = Fcons (build_string (buf), data);
+ {
+ char num [32];
+ sprintf (num, "%d", last_error.request_code);
+ XGetErrorDatabaseText (last_error.display, "XRequest", num, "",
+ buf, sizeof (buf));
+ if (! *buf)
+ sprintf (buf, "Request-%d", last_error.request_code);
+ data = Fcons (build_string (buf), data);
+ }
+ XGetErrorText (last_error.display, last_error.error_code, buf, sizeof (buf));
+ data = Fcons (build_string (buf), data);
+ again:
+ Fsignal (Qx_error, data);
+ if (! resumable_p) goto again;
+ return 1;
+}
+
+int
+x_IO_error_handler (Display *disp)
+{
+ /* This function can GC */
+ Lisp_Object dev;
+ struct device *d = get_device_from_display_1 (disp);
+
+ if (d)
+ XSETDEVICE (dev, d);
+ else
+ dev = Qnil;
+
+ if (NILP (find_nonminibuffer_frame_not_on_device (dev)))
+ {
+ /* We're going down. */
+ stderr_out
+ ("\n%s: Fatal I/O Error %d (%s) on display connection \"%s\"\n",
+ (STRINGP (Vinvocation_name) ?
+ (char *) XSTRING_DATA (Vinvocation_name) : "xemacs"),
+ errno, strerror (errno), DisplayString (disp));
+ stderr_out
+ (" after %lu requests (%lu known processed) with %d events remaining.\n",
+ NextRequest (disp) - 1, LastKnownRequestProcessed (disp),
+ QLength (disp));
+ /* assert (!_Xdebug); */
+ }
+ else
+ {
+ warn_when_safe
+ (Qx, Qcritical,
+ "I/O Error %d (%s) on display connection \"%s\"\n"
+ " after %lu requests (%lu known processed) with "
+ "%d events remaining.\n",
+ errno, strerror (errno), DisplayString (disp),
+ NextRequest (disp) - 1, LastKnownRequestProcessed (disp),
+ QLength (disp));
+ }
+
+ if (d)
+ enqueue_magic_eval_event (io_error_delete_device, dev);
+
+ /* CvE, July 16, 1996, XEmacs 19.14 */
+ /* Test for broken pipe error, which indicates X-server has gone down */
+ if (errno == EPIPE && x_seppuku_on_epipe)
+ {
+ /* Most probably X-server has gone down: Avoid infinite loop by just */
+ /* exiting */
+ /* slb: This sounds really, really dangerous to do by default, so */
+ /* I'm adding a guard to avoid doing this as default behavior */
+ stderr_out( "\n\nXEmacs exiting on broken pipe (errno %d, %s)\n",
+ errno, strerror(errno));
+ exit(errno);
+ }
+
+ return 0;
+}
+
+DEFUN ("x-debug-mode", Fx_debug_mode, 1, 2, 0, /*
+With a true arg, make the connection to the X server synchronous.
+With false, make it asynchronous. Synchronous connections are much slower,
+but are useful for debugging. (If you get X errors, make the connection
+synchronous, and use a debugger to set a breakpoint on `x_error_handler'.
+Your backtrace of the C stack will now be useful. In asynchronous mode,
+the stack above `x_error_handler' isn't helpful because of buffering.)
+If DEVICE is not specified, the selected device is assumed.
+
+Calling this function is the same as calling the C function `XSynchronize',
+or starting the program with the `-sync' command line argument.
+*/
+ (arg, device))
+{
+ struct device *d = decode_x_device (device);
+
+ XSynchronize (DEVICE_X_DISPLAY (d), !NILP (arg));
+
+ if (!NILP (arg))
+ message ("X connection is synchronous");
+ else
+ message ("X connection is asynchronous");
+
+ return arg;
+}
+
+\f
+/************************************************************************/
+/* X resources */
+/************************************************************************/
+
+#if 0 /* bah humbug. The whole "widget == resource" stuff is such
+ a crock of shit that I'm just going to ignore it all. */
+
+/* If widget is NULL, we are retrieving device or global face data. */
+
+static void
+construct_name_list (Display *display, Widget widget, char *fake_name,
+ char *fake_class, char *name, char *class)
+{
+ char *stack [100][2];
+ Widget this;
+ int count = 0;
+ char *name_tail, *class_tail;
+
+ if (widget)
+ {
+ for (this = widget; this; this = XtParent (this))
+ {
+ stack [count][0] = this->core.name;
+ stack [count][1] = XtClass (this)->core_class.class_name;
+ count++;
+ }
+ count--;
+ }
+ else if (fake_name && fake_class)
+ {
+ stack [count][0] = fake_name;
+ stack [count][1] = fake_class;
+ count++;
+ }
+
+ /* The root widget is an application shell; resource lookups use the
+ specified application name and application class in preference to
+ the name/class of that widget (which is argv[0] / "ApplicationShell").
+ Generally the app name and class will be argv[0] / "Emacs" but
+ the former can be set via the -name command-line option, and the
+ latter can be set by changing `x-emacs-application-class' in
+ lisp/term/x-win.el.
+ */
+ XtGetApplicationNameAndClass (display,
+ &stack [count][0],
+ &stack [count][1]);
+
+ name [0] = 0;
+ class [0] = 0;
+
+ name_tail = name;
+ class_tail = class;
+ for (; count >= 0; count--)
+ {
+ strcat (name_tail, stack [count][0]);
+ for (; *name_tail; name_tail++)
+ if (*name_tail == '.') *name_tail = '_';
+ strcat (name_tail, ".");
+ name_tail++;
+
+ strcat (class_tail, stack [count][1]);
+ for (; *class_tail; class_tail++)
+ if (*class_tail == '.') *class_tail = '_';
+ strcat (class_tail, ".");
+ class_tail++;
+ }
+}
+
+#endif /* 0 */
+
+static char_dynarr *name_char_dynarr;
+static char_dynarr *class_char_dynarr;
+
+/* Given a locale and device specification from x-get-resource or
+x-get-resource-prefix, return the resource prefix and display to
+fetch the resource on. */
+
+static void
+x_get_resource_prefix (Lisp_Object locale, Lisp_Object device,
+ Display **display_out, char_dynarr *name,
+ char_dynarr *class)
+{
+ if (NILP (locale))
+ locale = Qglobal;
+ if (NILP (Fvalid_specifier_locale_p (locale)))
+ signal_simple_error ("Invalid locale", locale);
+ if (WINDOWP (locale))
+ /* #### I can't come up with any coherent way of naming windows.
+ By relative position? That seems tricky because windows
+ can change position, be split, etc. By order of creation?
+ That seems less than useful. */
+ signal_simple_error ("Windows currently can't be resourced", locale);
+
+ if (!NILP (device) && !DEVICEP (device))
+ CHECK_DEVICE (device);
+ if (DEVICEP (device) && !DEVICE_X_P (XDEVICE (device)))
+ device = Qnil;
+ if (NILP (device))
+ {
+ device = DFW_DEVICE (locale);
+ if (DEVICEP (device) && !DEVICE_X_P (XDEVICE (device)))
+ device = Qnil;
+ if (NILP (device))
+ device = Vdefault_x_device;
+ if (NILP (device))
+ {
+ *display_out = 0;
+ return;
+ }
+ }
+
+ *display_out = DEVICE_X_DISPLAY (XDEVICE (device));
+
+ {
+ char *appname, *appclass;
+ int name_len, class_len;
+ XtGetApplicationNameAndClass (*display_out, &appname, &appclass);
+ name_len = strlen (appname);
+ class_len = strlen (appclass);
+ Dynarr_add_many (name , appname, name_len);
+ Dynarr_add_many (class, appclass, class_len);
+ validify_resource_component (Dynarr_atp (name, 0), name_len);
+ validify_resource_component (Dynarr_atp (class, 0), class_len);
+ }
+
+ if (EQ (locale, Qglobal))
+ return;
+ if (BUFFERP (locale))
+ {
+ Dynarr_add_literal_string (name, ".buffer.");
+ /* we know buffer is live; otherwise we got an error above. */
+ Dynarr_add_validified_lisp_string (name, Fbuffer_name (locale));
+ Dynarr_add_literal_string (class, ".EmacsLocaleType.EmacsBuffer");
+ }
+ else if (FRAMEP (locale))
+ {
+ Dynarr_add_literal_string (name, ".frame.");
+ /* we know frame is live; otherwise we got an error above. */
+ Dynarr_add_validified_lisp_string (name, Fframe_name (locale));
+ Dynarr_add_literal_string (class, ".EmacsLocaleType.EmacsFrame");
+ }
+ else
+ {
+ assert (DEVICEP (locale));
+ Dynarr_add_literal_string (name, ".device.");
+ /* we know device is live; otherwise we got an error above. */
+ Dynarr_add_validified_lisp_string (name, Fdevice_name (locale));
+ Dynarr_add_literal_string (class, ".EmacsLocaleType.EmacsDevice");
+ }
+ return;
+}
+
+DEFUN ("x-get-resource", Fx_get_resource, 3, 6, 0, /*
+Retrieve an X resource from the resource manager.
+
+The first arg is the name of the resource to retrieve, such as "font".
+The second arg is the class of the resource to retrieve, such as "Font".
+The third arg must be one of the symbols 'string, 'integer, 'natnum, or
+ 'boolean, specifying the type of object that the database is searched for.
+The fourth arg is the locale to search for the resources on, and can
+ currently be a buffer, a frame, a device, or 'global. If omitted, it
+ defaults to 'global.
+The fifth arg is the device to search for the resources on. (The resource
+ database for a particular device is constructed by combining non-device-
+ specific resources such as any command-line resources specified and any
+ app-defaults files found [or the fallback resources supplied by XEmacs,
+ if no app-defaults file is found] with device-specific resources such as
+ those supplied using xrdb.) If omitted, it defaults to the device of
+ LOCALE, if a device can be derived (i.e. if LOCALE is a frame or device),
+ and otherwise defaults to the value of `default-x-device'.
+The sixth arg NOERROR, if non-nil, means do not signal an error if a
+ bogus resource specification was retrieved (e.g. if a non-integer was
+ given when an integer was requested). In this case, a warning is issued
+ instead.
+
+The resource names passed to this function are looked up relative to the
+locale.
+
+If you want to search for a subresource, you just need to specify the
+resource levels in NAME and CLASS. For example, NAME could be
+"modeline.attributeFont", and CLASS "Face.AttributeFont".
+
+Specifically,
+
+1) If LOCALE is a buffer, a call
+
+ (x-get-resource "foreground" "Foreground" 'string SOME-BUFFER)
+
+is an interface to a C call something like
+
+ XrmGetResource (db, "xemacs.buffer.BUFFER-NAME.foreground",
+ "Emacs.EmacsLocaleType.EmacsBuffer.Foreground",
+ "String");
+
+2) If LOCALE is a frame, a call
+
+ (x-get-resource "foreground" "Foreground" 'string SOME-FRAME)
+
+is an interface to a C call something like
+
+ XrmGetResource (db, "xemacs.frame.FRAME-NAME.foreground",
+ "Emacs.EmacsLocaleType.EmacsFrame.Foreground",
+ "String");
+
+3) If LOCALE is a device, a call
+
+ (x-get-resource "foreground" "Foreground" 'string SOME-DEVICE)
+
+is an interface to a C call something like
+
+ XrmGetResource (db, "xemacs.device.DEVICE-NAME.foreground",
+ "Emacs.EmacsLocaleType.EmacsDevice.Foreground",
+ "String");
+
+4) If LOCALE is 'global, a call
+
+ (x-get-resource "foreground" "Foreground" 'string 'global)
+
+is an interface to a C call something like
+
+ XrmGetResource (db, "xemacs.foreground",
+ "Emacs.Foreground",
+ "String");
+
+Note that for 'global, no prefix is added other than that of the
+application itself; thus, you can use this locale to retrieve
+arbitrary application resources, if you really want to.
+
+The returned value of this function is nil if the queried resource is not
+found. If the third arg is `string', a string is returned, and if it is
+`integer', an integer is returned. If the third arg is `boolean', then the
+returned value is the list (t) for true, (nil) for false, and is nil to
+mean ``unspecified.''
+*/
+ (name, class, type, locale, device, no_error))
+{
+ char* name_string, *class_string;
+ char *raw_result;
+ XrmDatabase db;
+ Display *display;
+ Error_behavior errb = decode_error_behavior_flag (no_error);
+
+ CHECK_STRING (name);
+ CHECK_STRING (class);
+ CHECK_SYMBOL (type);
+
+ Dynarr_reset (name_char_dynarr);
+ Dynarr_reset (class_char_dynarr);
+
+ x_get_resource_prefix (locale, device, &display,
+ name_char_dynarr, class_char_dynarr);
+ if (!display)
+ return Qnil;
+
+ db = XtDatabase (display);
+
+ Dynarr_add (name_char_dynarr, '.');
+ Dynarr_add_lisp_string (name_char_dynarr, name);
+ Dynarr_add (class_char_dynarr, '.');
+ Dynarr_add_lisp_string (class_char_dynarr, class);
+ Dynarr_add (name_char_dynarr, '\0');
+ Dynarr_add (class_char_dynarr, '\0');
+
+ name_string = Dynarr_atp (name_char_dynarr, 0);
+ class_string = Dynarr_atp (class_char_dynarr, 0);
+
+ {
+ XrmValue xrm_value;
+ XrmName namelist[100];
+ XrmClass classlist[100];
+ XrmName *namerest = namelist;
+ XrmClass *classrest = classlist;
+ XrmRepresentation xrm_type;
+ XrmRepresentation string_quark;
+ int result;
+ XrmStringToNameList (name_string, namelist);
+ XrmStringToClassList (class_string, classlist);
+ string_quark = XrmStringToQuark ("String");
+
+ /* ensure that they have the same length */
+ while (namerest[0] && classrest[0])
+ namerest++, classrest++;
+ if (namerest[0] || classrest[0])
+ signal_simple_error_2
+ ("class list and name list must be the same length", name, class);
+ result = XrmQGetResource (db, namelist, classlist, &xrm_type, &xrm_value);
+
+ if (result != True || xrm_type != string_quark)
+ return Qnil;
+ raw_result = (char *) xrm_value.addr;
+ }
+
+ if (EQ (type, Qstring))
+ return build_string (raw_result);
+ else if (EQ (type, Qboolean))
+ {
+ if (!strcasecmp (raw_result, "off") ||
+ !strcasecmp (raw_result, "false") ||
+ !strcasecmp (raw_result, "no"))
+ return Fcons (Qnil, Qnil);
+ if (!strcasecmp (raw_result, "on") ||
+ !strcasecmp (raw_result, "true") ||
+ !strcasecmp (raw_result, "yes"))
+ return Fcons (Qt, Qnil);
+ return maybe_continuable_error
+ (Qresource, errb,
+ "can't convert %s: %s to a Boolean", name_string, raw_result);
+ }
+ else if (EQ (type, Qinteger) || EQ (type, Qnatnum))
+ {
+ int i;
+ char c;
+ if (1 != sscanf (raw_result, "%d%c", &i, &c))
+ return maybe_continuable_error
+ (Qresource, errb,
+ "can't convert %s: %s to an integer", name_string, raw_result);
+ else if (EQ (type, Qnatnum) && i < 0)
+ return maybe_continuable_error
+ (Qresource, errb,
+ "invalid numerical value %d for resource %s", i, name_string);
+ else
+ return make_int (i);
+ }
+ else
+ {
+ return maybe_signal_continuable_error
+ (Qwrong_type_argument,
+ list2 (build_translated_string
+ ("should be string, integer, natnum or boolean"),
+ type),
+ Qresource, errb);
+ }
+}
+
+DEFUN ("x-get-resource-prefix", Fx_get_resource_prefix, 1, 2, 0, /*
+Return the resource prefix for LOCALE on DEVICE.
+The resource prefix is the strings used to prefix resources if
+the LOCALE and DEVICE arguments were passed to `x-get-resource'.
+The returned value is a cons of a name prefix and a class prefix.
+For example, if LOCALE is a frame, the returned value might be
+\("xemacs.frame.FRAME-NAME" . "Emacs.EmacsLocaleType.EmacsFrame").
+If no valid X device for resourcing can be obtained, this function
+returns nil. (In such a case, `x-get-resource' would always return nil.)
+*/
+ (locale, device))
+{
+ Display *display;
+
+ Dynarr_reset (name_char_dynarr );
+ Dynarr_reset (class_char_dynarr);
+
+ x_get_resource_prefix (locale, device, &display,
+ name_char_dynarr, class_char_dynarr);
+ if (!display)
+ return Qnil;
+
+ return Fcons (make_string ((Bufbyte *) Dynarr_atp (name_char_dynarr, 0),
+ Dynarr_length (name_char_dynarr)),
+ make_string ((Bufbyte *) Dynarr_atp (class_char_dynarr, 0),
+ Dynarr_length (class_char_dynarr)));
+}
+
+DEFUN ("x-put-resource", Fx_put_resource, 1, 2, 0, /*
+Add a resource to the resource database for DEVICE.
+RESOURCE-LINE specifies the resource to add and should be a
+standard resource specification.
+*/
+ (resource_line, device))
+{
+ struct device *d = decode_device (device);
+ char *str, *colon_pos;
+
+ CHECK_STRING (resource_line);
+ str = (char *) XSTRING_DATA (resource_line);
+ if (!(colon_pos = strchr (str, ':')) || strchr (str, '\n'))
+ invalid:
+ signal_simple_error ("Invalid resource line", resource_line);
+ if (strspn (str,
+ /* Only the following chars are allowed before the colon */
+ " \t.*?abcdefghijklmnopqrstuvwxyz"
+ "ABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789_-")
+ != (size_t) (colon_pos - str))
+ goto invalid;
+
+ if (DEVICE_X_P (d))
+ {
+ XrmDatabase db = XtDatabase (DEVICE_X_DISPLAY (d));
+ XrmPutLineResource (&db, str);
+ }
+
+ return Qnil;
+}
+
+\f
+/************************************************************************/
+/* display information functions */
+/************************************************************************/
+
+DEFUN ("default-x-device", Fdefault_x_device, 0, 0, 0, /*
+Return the default X device for resourcing.
+This is the first-created X device that still exists.
+*/
+ ())
+{
+ return Vdefault_x_device;
+}
+
+DEFUN ("x-display-visual-class", Fx_display_visual_class, 0, 1, 0, /*
+Return the visual class of the X display DEVICE is using.
+This can be altered from the default at startup using the XResource "EmacsVisual".
+The returned value will be one of the symbols `static-gray', `gray-scale',
+`static-color', `pseudo-color', `true-color', or `direct-color'.
+*/
+ (device))
+{
+ Visual *vis = DEVICE_X_VISUAL (decode_x_device (device));
+ switch (vis->class)
+ {
+ case StaticGray: return intern ("static-gray");
+ case GrayScale: return intern ("gray-scale");
+ case StaticColor: return intern ("static-color");
+ case PseudoColor: return intern ("pseudo-color");
+ case TrueColor: return intern ("true-color");
+ case DirectColor: return intern ("direct-color");
+ default:
+ error ("display has an unknown visual class");
+ return Qnil; /* suppress compiler warning */
+ }
+}
+
+DEFUN ("x-display-visual-depth", Fx_display_visual_depth, 0, 1, 0, /*
+Return the bitplane depth of the visual the X display DEVICE is using.
+*/
+ (device))
+{
+ return make_int (DEVICE_X_DEPTH (decode_x_device (device)));
+}
+
+static Lisp_Object
+x_device_system_metrics (struct device *d,
+ enum device_metrics m)
+{
+ Display *dpy = DEVICE_X_DISPLAY (d);
+
+ switch (m)
+ {
+ case DM_size_device:
+ return Fcons (make_int (DisplayWidth (dpy, DefaultScreen (dpy))),
+ make_int (DisplayHeight (dpy, DefaultScreen (dpy))));
+ case DM_size_device_mm:
+ return Fcons (make_int (DisplayWidthMM (dpy, DefaultScreen (dpy))),
+ make_int (DisplayHeightMM (dpy, DefaultScreen (dpy))));
+ case DM_num_bit_planes:
+ return make_int (DisplayPlanes (dpy, DefaultScreen (dpy)));
+ case DM_num_color_cells:
+ return make_int (DisplayCells (dpy, DefaultScreen (dpy)));
+ default: /* No such device metric property for X devices */
+ return Qunbound;
+ }
+}
+
+DEFUN ("x-server-vendor", Fx_server_vendor, 0, 1, 0, /*
+Return the vendor ID string of the X server DEVICE is on.
+Return the empty string if the vendor ID string cannot be determined.
+*/
+ (device))
+{
+ Display *dpy = get_x_display (device);
+ char *vendor = ServerVendor (dpy);
+
+ return build_string (vendor ? vendor : "");
+}
+
+DEFUN ("x-server-version", Fx_server_version, 0, 1, 0, /*
+Return the version numbers of the X server DEVICE is on.
+The returned value is a list of three integers: the major and minor
+version numbers of the X Protocol in use, and the vendor-specific release
+number. See also `x-server-vendor'.
+*/
+ (device))
+{
+ Display *dpy = get_x_display (device);
+
+ return list3 (make_int (ProtocolVersion (dpy)),
+ make_int (ProtocolRevision (dpy)),
+ make_int (VendorRelease (dpy)));
+}
+
+DEFUN ("x-valid-keysym-name-p", Fx_valid_keysym_name_p, 1, 1, 0, /*
+Return true if KEYSYM names a keysym that the X library knows about.
+Valid keysyms are listed in the files /usr/include/X11/keysymdef.h and in
+/usr/lib/X11/XKeysymDB, or whatever the equivalents are on your system.
+*/
+ (keysym))
+{
+ CONST char *keysym_ext;
+
+ CHECK_STRING (keysym);
+ GET_C_STRING_CTEXT_DATA_ALLOCA (keysym, keysym_ext);
+
+ return XStringToKeysym (keysym_ext) ? Qt : Qnil;
+}
+
+DEFUN ("x-keysym-hashtable", Fx_keysym_hashtable, 0, 1, 0, /*
+Return a hashtable which contains a hash key for all keysyms which
+name keys on the keyboard. See `x-keysym-on-keyboard-p'.
+*/
+ (device))
+{
+ struct device *d = decode_device (device);
+ if (!DEVICE_X_P (d))
+ signal_simple_error ("Not an X device", device);
+
+ return DEVICE_X_DATA (d)->x_keysym_map_hashtable;
+}
+
+DEFUN ("x-keysym-on-keyboard-sans-modifiers-p", Fx_keysym_on_keyboard_sans_modifiers_p,
+ 1, 2, 0, /*
+Return true if KEYSYM names a key on the keyboard of DEVICE.
+More precisely, return true if pressing a physical key
+on the keyboard of DEVICE without any modifier keys generates KEYSYM.
+Valid keysyms are listed in the files /usr/include/X11/keysymdef.h and in
+/usr/lib/X11/XKeysymDB, or whatever the equivalents are on your system.
+The keysym name can be provided in two forms:
+- if keysym is a string, it must be the name as known to X windows.
+- if keysym is a symbol, it must be the name as known to XEmacs.
+The two names differ in capitalization and underscoring.
+*/
+ (keysym, device))
+{
+ struct device *d = decode_device (device);
+ if (!DEVICE_X_P (d))
+ signal_simple_error ("Not an X device", device);
+
+ return (EQ (Qsans_modifiers,
+ Fgethash (keysym, DEVICE_X_KEYSYM_MAP_HASHTABLE (d), Qnil)) ?
+ Qt : Qnil);
+}
+
+
+DEFUN ("x-keysym-on-keyboard-p", Fx_keysym_on_keyboard_p, 1, 2, 0, /*
+Return true if KEYSYM names a key on the keyboard of DEVICE.
+More precisely, return true if some keystroke (possibly including modifiers)
+on the keyboard of DEVICE keys generates KEYSYM.
+Valid keysyms are listed in the files /usr/include/X11/keysymdef.h and in
+/usr/lib/X11/XKeysymDB, or whatever the equivalents are on your system.
+The keysym name can be provided in two forms:
+- if keysym is a string, it must be the name as known to X windows.
+- if keysym is a symbol, it must be the name as known to XEmacs.
+The two names differ in capitalization and underscoring.
+*/
+ (keysym, device))
+{
+ struct device *d = decode_device (device);
+ if (!DEVICE_X_P (d))
+ signal_simple_error ("Not an X device", device);
+
+ return (NILP (Fgethash (keysym, DEVICE_X_KEYSYM_MAP_HASHTABLE (d), Qnil)) ?
+ Qnil : Qt);
+}
+
+\f
+/************************************************************************/
+/* grabs and ungrabs */
+/************************************************************************/
+
+DEFUN ("x-grab-pointer", Fx_grab_pointer, 0, 3, 0, /*
+Grab the pointer and restrict it to its current window.
+If optional DEVICE argument is nil, the default device will be used.
+If optional CURSOR argument is non-nil, change the pointer shape to that
+ until `x-ungrab-pointer' is called (it should be an object returned by the
+ `make-cursor-glyph' function).
+If the second optional argument IGNORE-KEYBOARD is non-nil, ignore all
+ keyboard events during the grab.
+Returns t if the grab is successful, nil otherwise.
+*/
+ (device, cursor, ignore_keyboard))
+{
+ Window w;
+ int pointer_mode, result;
+ struct device *d = decode_x_device (device);
+
+ if (!NILP (cursor))
+ {
+ CHECK_POINTER_GLYPH (cursor);
+ cursor = glyph_image_instance (cursor, device, ERROR_ME, 0);
+ }
+
+ if (!NILP (ignore_keyboard))
+ pointer_mode = GrabModeSync;
+ else
+ pointer_mode = GrabModeAsync;
+
+ w = XtWindow (FRAME_X_TEXT_WIDGET (device_selected_frame (d)));
+
+ /* #### Possibly this needs to gcpro the cursor somehow, but it doesn't
+ seem to cause a problem if XFreeCursor is called on a cursor in use
+ in a grab; I suppose the X server counts the grab as a reference
+ and doesn't free it until it exits? */
+ result = XGrabPointer (DEVICE_X_DISPLAY (d), w,
+ False,
+ ButtonMotionMask |
+ ButtonPressMask |
+ ButtonReleaseMask |
+ PointerMotionHintMask,
+ GrabModeAsync, /* Keep pointer events flowing */
+ pointer_mode, /* Stall keyboard events */
+ w, /* Stay in this window */
+ (NILP (cursor) ? 0
+ : XIMAGE_INSTANCE_X_CURSOR (cursor)),
+ CurrentTime);
+ return (result == GrabSuccess) ? Qt : Qnil;
+}
+
+DEFUN ("x-ungrab-pointer", Fx_ungrab_pointer, 0, 1, 0, /*
+Release a pointer grab made with `x-grab-pointer'.
+If optional first arg DEVICE is nil the default device is used.
+If it is t the pointer will be released on all X devices.
+*/
+ (device))
+{
+ if (!EQ (device, Qt))
+ {
+ Display *dpy = get_x_display (device);
+ XUngrabPointer (dpy, CurrentTime);
+ }
+ else
+ {
+ Lisp_Object devcons, concons;
+
+ DEVICE_LOOP_NO_BREAK (devcons, concons)
+ {
+ struct device *d = XDEVICE (XCAR (devcons));
+
+ if (DEVICE_X_P (d))
+ XUngrabPointer (DEVICE_X_DISPLAY (d), CurrentTime);
+ }
+ }
+
+ return Qnil;
+}
+
+DEFUN ("x-grab-keyboard", Fx_grab_keyboard, 0, 1, 0, /*
+Grab the keyboard on the given device (defaulting to the selected one).
+So long as the keyboard is grabbed, all keyboard events will be delivered
+to emacs -- it is not possible for other X clients to eavesdrop on them.
+Ungrab the keyboard with `x-ungrab-keyboard' (use an unwind-protect).
+Returns t if the grab was successful; nil otherwise.
+*/
+ (device))
+{
+ struct device *d = decode_x_device (device);
+ Window w = XtWindow (FRAME_X_TEXT_WIDGET (device_selected_frame (d)));
+ Display *dpy = DEVICE_X_DISPLAY (d);
+ Status status;
+ XSync (dpy, False);
+ status = XGrabKeyboard (dpy, w, True,
+ /* I don't really understand sync-vs-async
+ grabs, but this is what xterm does. */
+ GrabModeAsync, GrabModeAsync,
+ /* Use the timestamp of the last user action
+ read by emacs proper; xterm uses CurrentTime
+ but there's a comment that says "wrong"...
+ (Despite the name this is the time of the
+ last key or mouse event.) */
+ DEVICE_X_MOUSE_TIMESTAMP (d));
+ if (status == GrabSuccess)
+ {
+ /* The XUngrabKeyboard should generate a FocusIn back to this
+ window but it doesn't unless we explicitly set focus to the
+ window first (which should already have it. The net result
+ is that without this call when x-ungrab-keyboard is called
+ the selected frame ends up not having focus. */
+ XSetInputFocus (dpy, w, RevertToParent, DEVICE_X_MOUSE_TIMESTAMP (d));
+ return Qt;
+ }
+ else
+ return Qnil;
+}
+
+DEFUN ("x-ungrab-keyboard", Fx_ungrab_keyboard, 0, 1, 0, /*
+Release a keyboard grab made with `x-grab-keyboard'.
+*/
+ (device))
+{
+ Display *dpy = get_x_display (device);
+ XUngrabKeyboard (dpy, CurrentTime);
+ return Qnil;
+}
+
+\f
+/************************************************************************/
+/* initialization */
+/************************************************************************/
+
+void
+syms_of_device_x (void)
+{
+ DEFSUBR (Fx_debug_mode);
+ DEFSUBR (Fx_get_resource);
+ DEFSUBR (Fx_get_resource_prefix);
+ DEFSUBR (Fx_put_resource);
+
+ DEFSUBR (Fdefault_x_device);
+ DEFSUBR (Fx_display_visual_class);
+ DEFSUBR (Fx_display_visual_depth);
+ DEFSUBR (Fx_server_vendor);
+ DEFSUBR (Fx_server_version);
+ DEFSUBR (Fx_valid_keysym_name_p);
+ DEFSUBR (Fx_keysym_hashtable);
+ DEFSUBR (Fx_keysym_on_keyboard_p);
+ DEFSUBR (Fx_keysym_on_keyboard_sans_modifiers_p);
+
+ DEFSUBR (Fx_grab_pointer);
+ DEFSUBR (Fx_ungrab_pointer);
+ DEFSUBR (Fx_grab_keyboard);
+ DEFSUBR (Fx_ungrab_keyboard);
+
+ defsymbol (&Qx_error, "x-error");
+ defsymbol (&Qinit_pre_x_win, "init-pre-x-win");
+ defsymbol (&Qinit_post_x_win, "init-post-x-win");
+}
+
+void
+console_type_create_device_x (void)
+{
+ CONSOLE_HAS_METHOD (x, init_device);
+ CONSOLE_HAS_METHOD (x, finish_init_device);
+ CONSOLE_HAS_METHOD (x, mark_device);
+ CONSOLE_HAS_METHOD (x, delete_device);
+ CONSOLE_HAS_METHOD (x, device_system_metrics);
+
+ {
+ /* Initialize variables to speed up X resource interactions */
+ CONST char *valid_resource_chars =
+ "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789-_";
+ while (*valid_resource_chars)
+ valid_resource_char_p[(unsigned int) (*valid_resource_chars++)] = 1;
+
+ name_char_dynarr = Dynarr_new (char);
+ class_char_dynarr = Dynarr_new (char);
+ }
+}
+
+void
+vars_of_device_x (void)
+{
+ DEFVAR_LISP ("x-emacs-application-class", &Vx_emacs_application_class /*
+The X application class of the XEmacs process.
+This controls, among other things, the name of the `app-defaults' file
+that XEmacs will use. For changes to this variable to take effect, they
+must be made before the connection to the X server is initialized, that is,
+this variable may only be changed before emacs is dumped, or by setting it
+in the file lisp/term/x-win.el.
+
+If this variable is nil before the connection to the X server is first
+initialized (which it is by default), the X resource database will be
+consulted and the value will be set according to whether any resources
+are found for the application class `XEmacs'. If the user has set any
+resources for the XEmacs application class, the XEmacs process will use
+the application class `XEmacs'. Otherwise, the XEmacs process will use
+the application class `Emacs' which is backwards compatible to previous
+XEmacs versions but may conflict with resources intended for GNU Emacs.
+*/ );
+ Vx_emacs_application_class = Qnil;
+
+ DEFVAR_LISP ("x-initial-argv-list", &Vx_initial_argv_list /*
+You don't want to know.
+This is used during startup to communicate the remaining arguments in
+`command-line-args-left' to the C code, which passes the args to
+the X initialization code, which removes some args, and then the
+args are placed back into `x-initial-arg-list' and thence into
+`command-line-args-left'. Perhaps `command-line-args-left' should
+just reside in C.
+*/ );
+ Vx_initial_argv_list = Qnil;
+
+ DEFVAR_BOOL ("x-seppuku-on-epipe", &x_seppuku_on_epipe /*
+When non-nil, terminate XEmacs immediately on SIGPIPE from the X server.
+XEmacs doesn't terminate properly on some systems.
+When this variable is non-nil, XEmacs will commit immediate suicide
+when it gets a sigpipe from the X Server.
+*/ );
+ x_seppuku_on_epipe = 0;
+
+#if defined(MULE) && (defined(LWLIB_MENUBARS_MOTIF) || defined(HAVE_XIM) || defined (USE_XFONTSET))
+ DEFVAR_LISP ("x-app-defaults-directory", &Vx_app_defaults_directory /*
+Used by the Lisp code to communicate to the low level X initialization
+where the localized init files are.
+*/ );
+ Vx_app_defaults_directory = Qnil;
+#endif
+
+ Fprovide (Qx);
+
+ staticpro (&Vdefault_x_device);
+ Vdefault_x_device = Qnil;
+
+ error_expected = 0;
+ error_occurred = 0;
+
+ in_resource_setting = 0;
+}
projects / chise / xemacs-chise.git.1 / blobdiff