Mercurial > hg > xemacs-beta
annotate src/event-Xt.c @ 5727:86d33ddc7fd6
Avoid EOVERFLOW from stat() calls due to overflowing inode numbers.
The btrfs filesystem now uses 64-bit inode numbers even on 32-bit systems.
This can lead to spurious stat() failures, where EOVERFLOW is returned because
the inode number does not fit into the 32-bit stat structure, even when the
caller is not interested in the inode number. This patch builds with
_FILE_OFFSET_BITS == 64 when possible, and deals with integers that may be
too large to fit into a Lisp fixnum. For more information, see xemacs-patches
message <CAHCOHQk_mPM6WgFChBsGafqhuazep6VED7swFoqfFXOV1r8org@mail.gmail.com>.
| author | Jerry James <james@xemacs.org> |
|---|---|
| date | Wed, 06 Mar 2013 08:32:17 -0700 |
| parents | 1d1f385c9149 |
| children |
| rev | line source |
|---|---|
| 428 | 1 /* The event_stream interface for X11 with Xt, and/or tty frames. |
| 2 Copyright (C) 1991-5, 1997 Free Software Foundation, Inc. | |
| 3 Copyright (C) 1995 Sun Microsystems, Inc. | |
|
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4 Copyright (C) 1996, 2001, 2002, 2003, 2010 Ben Wing. |
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5 Copyright (C) 2010 Didier Verna |
| 428 | 6 |
| 7 This file is part of XEmacs. | |
| 8 | |
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9 XEmacs is free software: you can redistribute it and/or modify it |
| 428 | 10 under the terms of the GNU General Public License as published by the |
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11 Free Software Foundation, either version 3 of the License, or (at your |
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12 option) any later version. |
| 428 | 13 |
| 14 XEmacs is distributed in the hope that it will be useful, but WITHOUT | |
| 15 ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or | |
| 16 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License | |
| 17 for more details. | |
| 18 | |
| 19 You should have received a copy of the GNU General Public License | |
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20 along with XEmacs. If not, see <http://www.gnu.org/licenses/>. */ |
| 428 | 21 |
| 22 /* Synched up with: Not in FSF. */ | |
| 23 | |
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24 /* NOTE: It would be possible to fix things so that all of GTK, Windows, X, |
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25 TTY and stream can have consoles at the same time. We already do lots |
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26 of combinations. Basically, either call select() directly or some |
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27 interface onto it, and select() over all the filedescs, including the |
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28 X and GTK socket, and under Cygwin, the Windows device. Then for whichever |
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29 filedesc there's an event, call the appropriate window-system-specific |
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30 method to pull the event(s) and store onto the dispatch queue. --ben */ |
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31 |
| 428 | 32 #include <config.h> |
| 33 #include "lisp.h" | |
| 34 | |
| 35 #include "blocktype.h" | |
| 771 | 36 #include "charset.h" |
| 428 | 37 #include "console.h" |
| 872 | 38 #include "device-impl.h" |
| 800 | 39 #include "elhash.h" |
| 428 | 40 #include "events.h" |
| 800 | 41 #include "file-coding.h" |
| 872 | 42 #include "frame-impl.h" |
| 800 | 43 #include "glyphs.h" |
| 44 #include "lstream.h" | |
| 428 | 45 #include "process.h" |
| 46 #include "redisplay.h" | |
| 800 | 47 #include "window.h" |
| 48 | |
| 49 #include "console-tty.h" | |
| 50 | |
| 872 | 51 #include "console-x-impl.h" |
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52 #include "fontcolor-x.h" |
| 800 | 53 #include "../lwlib/lwlib.h" |
| 54 #include "EmacsFrame.h" | |
| 55 | |
| 56 #include "sysproc.h" /* for MAXDESC */ | |
| 428 | 57 #include "systime.h" |
| 58 | |
| 59 #include "xintrinsicp.h" /* CoreP.h needs this */ | |
| 60 #include <X11/CoreP.h> /* Numerous places access the fields of | |
| 61 a core widget directly. We could | |
| 62 use XtGetValues(), but ... */ | |
| 63 #include <X11/ShellP.h> | |
| 64 | |
| 800 | 65 #if defined (HAVE_XIM) && defined (XIM_MOTIF) |
| 1315 | 66 #include "xmotif.h" |
| 428 | 67 #endif |
| 68 | |
| 69 #ifdef HAVE_DRAGNDROP | |
| 70 #include "dragdrop.h" | |
| 71 #endif | |
| 72 | |
| 1292 | 73 #ifdef WIN32_ANY |
| 74 extern int mswindows_is_blocking; | |
| 75 #endif | |
| 76 | |
| 2828 | 77 /* For Russian C-x processing. */ |
| 3171 | 78 Lisp_Object Vx_us_keymap_description; |
| 79 Fixnum Vx_us_keymap_first_keycode; | |
| 2699 | 80 |
| 1094 | 81 /* used in glyphs-x.c */ |
| 82 void enqueue_focus_event (Widget wants_it, Lisp_Object frame, int in_p); | |
| 428 | 83 static void handle_focus_event_1 (struct frame *f, int in_p); |
| 863 | 84 static void handle_focus_event_2 (Window w, struct frame *f, int in_p); |
| 428 | 85 |
| 86 static struct event_stream *Xt_event_stream; | |
| 87 | |
| 88 /* With the new event model, all events go through XtDispatchEvent() | |
| 89 and are picked up by an event handler that is added to each frame | |
| 90 widget. (This is how it's supposed to be.) In the old method, | |
| 91 Emacs sucks out events directly from XtNextEvent() and only | |
| 92 dispatches the events that it doesn't need to deal with. This | |
| 93 old way has lots of corresponding junk that is no longer | |
| 94 necessary: lwlib extensions, synthetic XAnyEvents, unnecessary | |
| 95 magic events, etc. */ | |
| 96 | |
| 97 /* The one and only one application context that Emacs uses. */ | |
| 98 XtAppContext Xt_app_con; | |
| 99 | |
| 100 /* Do we accept events sent by other clients? */ | |
| 101 int x_allow_sendevents; | |
| 102 | |
| 103 #ifdef DEBUG_XEMACS | |
| 458 | 104 Fixnum debug_x_events; |
| 428 | 105 #endif |
| 106 | |
| 107 static int process_events_occurred; | |
| 108 static int tty_events_occurred; | |
| 450 | 109 static Widget widget_with_focus; |
| 428 | 110 |
| 111 /* Mask of bits indicating the descriptors that we wait for input on */ | |
| 1268 | 112 extern SELECT_TYPE input_wait_mask, non_fake_input_wait_mask; |
| 113 extern SELECT_TYPE process_only_mask, tty_only_mask; | |
| 428 | 114 |
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115 /* #### This should be String, but G++ 4.3 doesn't apply the const |
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116 specifier the same way for String (typedef'd to char*) and char*. */ |
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117 static const char * x_fallback_resources[] = |
| 428 | 118 { |
| 119 /* This file is automatically generated from the app-defaults file | |
| 120 in ../etc/Emacs.ad. These resources are consulted only if no | |
| 121 app-defaults file is found at all. | |
| 122 */ | |
| 123 #include <Emacs.ad.h> | |
| 124 0 | |
| 125 }; | |
| 126 | |
| 127 static Lisp_Object x_keysym_to_emacs_keysym (KeySym keysym, int simple_p); | |
| 128 void emacs_Xt_mapping_action (Widget w, XEvent *event); | |
| 440 | 129 void debug_process_finalization (Lisp_Process *p); |
| 428 | 130 void emacs_Xt_event_handler (Widget wid, XtPointer closure, XEvent *event, |
| 131 Boolean *continue_to_dispatch); | |
| 132 | |
| 133 static int last_quit_check_signal_tick_count; | |
| 134 | |
| 1268 | 135 #define THIS_IS_X |
| 136 #include "event-xlike-inc.c" | |
| 137 | |
| 428 | 138 |
| 139 /************************************************************************/ | |
| 140 /* keymap handling */ | |
| 141 /************************************************************************/ | |
| 142 | |
| 2828 | 143 /* See comment near character_to_event(). */ |
| 440 | 144 static void |
| 2828 | 145 maybe_define_x_key_as_self_inserting_character (KeySym keysym, |
| 146 Lisp_Object symbol) | |
| 440 | 147 { |
| 148 Lisp_Object character = x_keysym_to_character (keysym); | |
| 149 | |
| 150 if (CHARP (character)) | |
| 151 { | |
| 152 extern Lisp_Object Vcurrent_global_map; | |
| 2828 | 153 extern Lisp_Object Qcharacter_of_keysym; |
| 971 | 154 if (NILP (Flookup_key (Vcurrent_global_map, symbol, Qnil))) |
| 155 { | |
| 2828 | 156 Fput (symbol, Qcharacter_of_keysym, character); |
| 971 | 157 Fdefine_key (Vcurrent_global_map, symbol, Qself_insert_command); |
| 158 } | |
| 440 | 159 } |
| 160 } | |
| 161 | |
| 2828 | 162 void |
| 440 | 163 x_has_keysym (KeySym keysym, Lisp_Object hash_table, int with_modifiers) |
| 164 { | |
| 165 KeySym upper_lower[2]; | |
| 166 int j; | |
| 167 | |
| 168 if (keysym < 0x80) /* Optimize for ASCII keysyms */ | |
| 169 return; | |
| 442 | 170 |
| 171 /* If you execute: | |
| 172 xmodmap -e 'keysym NN = scaron' | |
| 440 | 173 and then press (Shift scaron), X11 will return the different |
| 442 | 174 keysym `Scaron', but `xmodmap -pke' might not even mention `Scaron'. |
| 175 So we "register" both `scaron' and `Scaron'. */ | |
| 176 #ifdef HAVE_XCONVERTCASE | |
| 440 | 177 XConvertCase (keysym, &upper_lower[0], &upper_lower[1]); |
| 442 | 178 #else |
| 179 upper_lower[0] = upper_lower[1] = keysym; | |
| 180 #endif | |
| 440 | 181 |
| 182 for (j = 0; j < (upper_lower[0] == upper_lower[1] ? 1 : 2); j++) | |
| 183 { | |
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184 KeySym ks = upper_lower[j]; |
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185 Lisp_Object sym = x_keysym_to_emacs_keysym (ks, 0); |
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186 Lisp_Object new_value = with_modifiers ? Qt : Qsans_modifiers; |
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187 Lisp_Object old_value = Fgethash (sym, hash_table, Qnil); |
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188 |
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189 if (! EQ (old_value, new_value) |
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190 && ! (EQ (old_value, Qsans_modifiers) && |
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191 EQ (new_value, Qt))) |
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192 { |
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193 maybe_define_x_key_as_self_inserting_character (ks, sym); |
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194 Fputhash (sym, new_value, hash_table); |
| 440 | 195 } |
| 196 } | |
| 197 } | |
| 198 | |
| 428 | 199 static void |
| 200 x_reset_key_mapping (struct device *d) | |
| 201 { | |
| 202 Display *display = DEVICE_X_DISPLAY (d); | |
| 203 struct x_device *xd = DEVICE_X_DATA (d); | |
| 204 KeySym *keysym, *keysym_end; | |
| 205 Lisp_Object hash_table; | |
| 206 int key_code_count, keysyms_per_code; | |
| 207 | |
| 208 if (xd->x_keysym_map) | |
| 209 XFree ((char *) xd->x_keysym_map); | |
| 210 XDisplayKeycodes (display, | |
| 211 &xd->x_keysym_map_min_code, | |
| 212 &xd->x_keysym_map_max_code); | |
| 213 key_code_count = xd->x_keysym_map_max_code - xd->x_keysym_map_min_code + 1; | |
| 214 xd->x_keysym_map = | |
| 215 XGetKeyboardMapping (display, xd->x_keysym_map_min_code, key_code_count, | |
| 216 &xd->x_keysym_map_keysyms_per_code); | |
| 217 | |
| 218 hash_table = xd->x_keysym_map_hash_table; | |
| 219 if (HASH_TABLEP (hash_table)) | |
| 220 Fclrhash (hash_table); | |
| 221 else | |
| 222 xd->x_keysym_map_hash_table = hash_table = | |
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223 make_lisp_hash_table (128, HASH_TABLE_NON_WEAK, Qequal); |
| 428 | 224 |
| 225 for (keysym = xd->x_keysym_map, | |
| 226 keysyms_per_code = xd->x_keysym_map_keysyms_per_code, | |
| 227 keysym_end = keysym + (key_code_count * keysyms_per_code); | |
| 228 keysym < keysym_end; | |
| 229 keysym += keysyms_per_code) | |
| 230 { | |
| 231 int j; | |
| 232 | |
| 233 if (keysym[0] == NoSymbol) | |
| 234 continue; | |
| 235 | |
| 440 | 236 x_has_keysym (keysym[0], hash_table, 0); |
| 428 | 237 |
| 238 for (j = 1; j < keysyms_per_code; j++) | |
| 239 { | |
| 240 if (keysym[j] != keysym[0] && | |
| 241 keysym[j] != NoSymbol) | |
| 440 | 242 x_has_keysym (keysym[j], hash_table, 1); |
| 428 | 243 } |
| 244 } | |
| 245 } | |
| 246 | |
| 2828 | 247 static const Ascbyte * |
| 428 | 248 index_to_name (int indice) |
| 249 { | |
| 250 switch (indice) | |
| 251 { | |
| 252 case ShiftMapIndex: return "ModShift"; | |
| 253 case LockMapIndex: return "ModLock"; | |
| 254 case ControlMapIndex: return "ModControl"; | |
| 255 case Mod1MapIndex: return "Mod1"; | |
| 256 case Mod2MapIndex: return "Mod2"; | |
| 257 case Mod3MapIndex: return "Mod3"; | |
| 258 case Mod4MapIndex: return "Mod4"; | |
| 259 case Mod5MapIndex: return "Mod5"; | |
| 260 default: return "???"; | |
| 261 } | |
| 262 } | |
| 263 | |
| 2828 | 264 /* X bogusly doesn't define the interpretations of any bits besides |
| 265 ModControl, ModShift, and ModLock; so the Interclient Communication | |
| 266 Conventions Manual says that we have to bend over backwards to figure | |
| 267 out what the other modifier bits mean. According to ICCCM: | |
| 268 | |
| 269 - Any keycode which is assigned ModControl is a "control" key. | |
| 270 | |
| 271 - Any modifier bit which is assigned to a keycode which generates Meta_L | |
| 272 or Meta_R is the modifier bit meaning "meta". Likewise for Super, Hyper, | |
| 273 etc. | |
| 274 | |
| 275 - Any keypress event which contains ModControl in its state should be | |
| 276 interpreted as a "control" character. | |
| 277 | |
| 278 - Any keypress event which contains a modifier bit in its state which is | |
| 279 generated by a keycode whose corresponding keysym is Meta_L or Meta_R | |
| 280 should be interpreted as a "meta" character. Likewise for Super, Hyper, | |
| 281 etc. | |
| 282 | |
| 283 - It is illegal for a keysym to be associated with more than one modifier | |
| 284 bit. | |
| 285 | |
| 286 This means that the only thing that emacs can reasonably interpret as a | |
| 287 "meta" key is a key whose keysym is Meta_L or Meta_R, and which generates | |
| 288 one of the modifier bits Mod1-Mod5. | |
| 289 | |
| 290 Unfortunately, many keyboards don't have Meta keys in their default | |
| 291 configuration. So, if there are no Meta keys, but there are "Alt" keys, | |
| 292 emacs will interpret Alt as Meta. If there are both Meta and Alt keys, | |
| 293 then the Meta keys mean "Meta", and the Alt keys mean "Alt" (it used to | |
| 294 mean "Symbol," but that just confused the hell out of way too many people). | |
| 295 | |
| 296 This works with the default configurations of the 19 keyboard-types I've | |
| 297 checked. | |
| 298 | |
| 299 Emacs detects keyboard configurations which violate the above rules, and | |
| 300 gives a warning. */ | |
| 428 | 301 |
| 302 static void | |
| 303 x_reset_modifier_mapping (struct device *d) | |
| 304 { | |
| 305 Display *display = DEVICE_X_DISPLAY (d); | |
| 306 struct x_device *xd = DEVICE_X_DATA (d); | |
| 307 int modifier_index, modifier_key, column, mkpm; | |
| 308 int warned_about_overlapping_modifiers = 0; | |
| 309 int warned_about_predefined_modifiers = 0; | |
| 310 int warned_about_duplicate_modifiers = 0; | |
| 311 int meta_bit = 0; | |
| 312 int hyper_bit = 0; | |
| 313 int super_bit = 0; | |
| 314 int alt_bit = 0; | |
| 315 int mode_bit = 0; | |
| 316 | |
| 317 xd->lock_interpretation = 0; | |
| 318 | |
| 319 if (xd->x_modifier_keymap) | |
| 3949 | 320 { |
| 321 XFreeModifiermap (xd->x_modifier_keymap); | |
| 322 /* Set it to NULL in case we receive two MappingModifier events in a | |
| 323 row, and the second is processed during some CHECK_QUITs within | |
| 324 x_reset_key_mapping. If that happens, XFreeModifierMap will be | |
| 325 called twice on the same map, and we crash. */ | |
| 326 xd->x_modifier_keymap = NULL; | |
| 327 } | |
| 428 | 328 |
| 329 x_reset_key_mapping (d); | |
| 330 | |
| 331 xd->x_modifier_keymap = XGetModifierMapping (display); | |
| 332 | |
| 333 /* Boy, I really wish C had local functions... | |
| 334 */ | |
| 335 | |
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336 #define modwarn(name,old,other) \ |
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337 warn_when_safe (Qkey_mapping, Qwarning, \ |
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338 "XEmacs: %s (0x%x) generates %s, which is generated by %s.", \ |
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339 name, code, index_to_name (old), other), \ |
| 428 | 340 warned_about_overlapping_modifiers = 1 |
| 341 | |
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342 #define modbarf(name,other) \ |
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343 warn_when_safe (Qkey_mapping, Qwarning, \ |
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344 "XEmacs: %s (0x%x) generates %s, which is nonsensical.", \ |
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345 name, code, other), \ |
| 428 | 346 warned_about_predefined_modifiers = 1 |
| 347 | |
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348 #define check_modifier(name,mask) \ |
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349 if ((1<<modifier_index) != mask) \ |
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350 warn_when_safe (Qkey_mapping, Qwarning, \ |
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351 "XEmacs: %s (0x%x) generates %s, which is nonsensical.", \ |
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352 name, code, index_to_name (modifier_index)), \ |
| 428 | 353 warned_about_predefined_modifiers = 1 |
| 354 | |
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355 #define store_modifier(name,old) \ |
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356 if (old && old != modifier_index) \ |
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357 warn_when_safe (Qkey_mapping, Qwarning, \ |
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358 "XEmacs: %s (0x%x) generates both %s and %s, which is nonsensical.", \ |
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359 name, code, index_to_name (old), \ |
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360 index_to_name (modifier_index)), \ |
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361 warned_about_duplicate_modifiers = 1; \ |
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362 if (modifier_index == ShiftMapIndex) modbarf (name,"ModShift"); \ |
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363 else if (modifier_index == LockMapIndex) modbarf (name,"ModLock"); \ |
| 428 | 364 else if (modifier_index == ControlMapIndex) modbarf (name,"ModControl"); \ |
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365 else if (sym == XK_Mode_switch) \ |
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366 mode_bit = modifier_index; /* Mode_switch is special, see below... */ \ |
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367 else if (modifier_index == meta_bit && old != meta_bit) \ |
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368 modwarn (name, meta_bit, "Meta"); \ |
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369 else if (modifier_index == super_bit && old != super_bit) \ |
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370 modwarn (name, super_bit, "Super"); \ |
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371 else if (modifier_index == hyper_bit && old != hyper_bit) \ |
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372 modwarn (name, hyper_bit, "Hyper"); \ |
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373 else if (modifier_index == alt_bit && old != alt_bit) \ |
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374 modwarn (name, alt_bit, "Alt"); \ |
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375 else \ |
| 428 | 376 old = modifier_index; |
| 377 | |
| 378 mkpm = xd->x_modifier_keymap->max_keypermod; | |
| 379 for (modifier_index = 0; modifier_index < 8; modifier_index++) | |
| 380 for (modifier_key = 0; modifier_key < mkpm; modifier_key++) { | |
| 381 KeySym last_sym = 0; | |
| 382 for (column = 0; column < 4; column += 2) { | |
| 383 KeyCode code = xd->x_modifier_keymap->modifiermap[modifier_index * mkpm | |
| 384 + modifier_key]; | |
| 385 KeySym sym = (code ? XKeycodeToKeysym (display, code, column) : 0); | |
| 386 if (sym == last_sym) continue; | |
| 387 last_sym = sym; | |
| 388 switch (sym) { | |
| 389 case XK_Mode_switch:store_modifier ("Mode_switch", mode_bit); break; | |
| 390 case XK_Meta_L: store_modifier ("Meta_L", meta_bit); break; | |
| 391 case XK_Meta_R: store_modifier ("Meta_R", meta_bit); break; | |
| 392 case XK_Super_L: store_modifier ("Super_L", super_bit); break; | |
| 393 case XK_Super_R: store_modifier ("Super_R", super_bit); break; | |
| 394 case XK_Hyper_L: store_modifier ("Hyper_L", hyper_bit); break; | |
| 395 case XK_Hyper_R: store_modifier ("Hyper_R", hyper_bit); break; | |
| 396 case XK_Alt_L: store_modifier ("Alt_L", alt_bit); break; | |
| 397 case XK_Alt_R: store_modifier ("Alt_R", alt_bit); break; | |
| 398 case XK_Control_L: check_modifier ("Control_L", ControlMask); break; | |
| 399 case XK_Control_R: check_modifier ("Control_R", ControlMask); break; | |
| 400 case XK_Shift_L: check_modifier ("Shift_L", ShiftMask); break; | |
| 401 case XK_Shift_R: check_modifier ("Shift_R", ShiftMask); break; | |
| 402 case XK_Shift_Lock: check_modifier ("Shift_Lock", LockMask); | |
| 403 xd->lock_interpretation = XK_Shift_Lock; break; | |
| 404 case XK_Caps_Lock: check_modifier ("Caps_Lock", LockMask); | |
| 405 xd->lock_interpretation = XK_Caps_Lock; break; | |
| 406 | |
| 407 /* It probably doesn't make any sense for a modifier bit to be | |
| 408 assigned to a key that is not one of the above, but OpenWindows | |
| 409 assigns modifier bits to a couple of random function keys for | |
| 410 no reason that I can discern, so printing a warning here would | |
| 411 be annoying. */ | |
| 412 } | |
| 413 } | |
| 414 } | |
| 415 #undef store_modifier | |
| 416 #undef check_modifier | |
| 417 #undef modwarn | |
| 418 #undef modbarf | |
| 419 | |
| 420 /* If there was no Meta key, then try using the Alt key instead. | |
| 421 If there is both a Meta key and an Alt key, then the Alt key | |
| 422 is not disturbed and remains an Alt key. */ | |
| 423 if (! meta_bit && alt_bit) | |
| 424 meta_bit = alt_bit, alt_bit = 0; | |
| 425 | |
| 426 /* mode_bit overrides everything, since it's processed down inside of | |
| 427 XLookupString() instead of by us. If Meta and Mode_switch both | |
| 428 generate the same modifier bit (which is an error), then we don't | |
| 429 interpret that bit as Meta, because we can't make XLookupString() | |
| 430 not interpret it as Mode_switch; and interpreting it as both would | |
| 431 be totally wrong. */ | |
| 432 if (mode_bit) | |
| 433 { | |
| 2828 | 434 const Ascbyte *warn = 0; |
| 428 | 435 if (mode_bit == meta_bit) warn = "Meta", meta_bit = 0; |
| 436 else if (mode_bit == hyper_bit) warn = "Hyper", hyper_bit = 0; | |
| 437 else if (mode_bit == super_bit) warn = "Super", super_bit = 0; | |
| 438 else if (mode_bit == alt_bit) warn = "Alt", alt_bit = 0; | |
| 439 if (warn) | |
| 440 { | |
| 441 warn_when_safe | |
| 442 (Qkey_mapping, Qwarning, | |
| 443 "XEmacs: %s is being used for both Mode_switch and %s.", | |
| 444 index_to_name (mode_bit), warn), | |
| 445 warned_about_overlapping_modifiers = 1; | |
| 446 } | |
| 447 } | |
| 448 #undef index_to_name | |
| 449 | |
| 450 xd->MetaMask = (meta_bit ? (1 << meta_bit) : 0); | |
| 451 xd->HyperMask = (hyper_bit ? (1 << hyper_bit) : 0); | |
| 452 xd->SuperMask = (super_bit ? (1 << super_bit) : 0); | |
| 453 xd->AltMask = (alt_bit ? (1 << alt_bit) : 0); | |
| 454 xd->ModeMask = (mode_bit ? (1 << mode_bit) : 0); /* unused */ | |
| 455 | |
| 456 | |
| 457 if (warned_about_overlapping_modifiers) | |
| 458 warn_when_safe (Qkey_mapping, Qwarning, "\n" | |
| 459 " Two distinct modifier keys (such as Meta and Hyper) cannot generate\n" | |
| 460 " the same modifier bit, because Emacs won't be able to tell which\n" | |
| 461 " modifier was actually held down when some other key is pressed. It\n" | |
| 462 " won't be able to tell Meta-x and Hyper-x apart, for example. Change\n" | |
| 463 " one of these keys to use some other modifier bit. If you intend for\n" | |
| 464 " these keys to have the same behavior, then change them to have the\n" | |
| 465 " same keysym as well as the same modifier bit."); | |
| 466 | |
| 467 if (warned_about_predefined_modifiers) | |
| 468 warn_when_safe (Qkey_mapping, Qwarning, "\n" | |
| 469 " The semantics of the modifier bits ModShift, ModLock, and ModControl\n" | |
| 470 " are predefined. It does not make sense to assign ModControl to any\n" | |
| 471 " keysym other than Control_L or Control_R, or to assign any modifier\n" | |
| 472 " bits to the \"control\" keysyms other than ModControl. You can't\n" | |
| 473 " turn a \"control\" key into a \"meta\" key (or vice versa) by simply\n" | |
| 474 " assigning the key a different modifier bit. You must also make that\n" | |
| 475 " key generate an appropriate keysym (Control_L, Meta_L, etc)."); | |
| 476 | |
| 477 /* No need to say anything more for warned_about_duplicate_modifiers. */ | |
| 478 | |
| 479 if (warned_about_overlapping_modifiers || warned_about_predefined_modifiers) | |
| 480 warn_when_safe (Qkey_mapping, Qwarning, "\n" | |
| 481 " The meanings of the modifier bits Mod1 through Mod5 are determined\n" | |
| 482 " by the keysyms used to control those bits. Mod1 does NOT always\n" | |
| 483 " mean Meta, although some non-ICCCM-compliant programs assume that."); | |
| 484 } | |
| 485 | |
| 486 void | |
| 487 x_init_modifier_mapping (struct device *d) | |
| 488 { | |
| 489 struct x_device *xd = DEVICE_X_DATA (d); | |
| 490 xd->x_keysym_map_hash_table = Qnil; | |
| 491 xd->x_keysym_map = NULL; | |
| 492 xd->x_modifier_keymap = NULL; | |
| 493 x_reset_modifier_mapping (d); | |
| 494 } | |
| 495 | |
| 496 static int | |
| 497 x_key_is_modifier_p (KeyCode keycode, struct device *d) | |
| 498 { | |
| 499 struct x_device *xd = DEVICE_X_DATA (d); | |
| 500 KeySym *syms; | |
| 501 int i; | |
| 502 | |
| 503 if (keycode < xd->x_keysym_map_min_code || | |
| 504 keycode > xd->x_keysym_map_max_code) | |
| 505 return 0; | |
| 506 | |
| 507 syms = &xd->x_keysym_map [(keycode - xd->x_keysym_map_min_code) * | |
| 508 xd->x_keysym_map_keysyms_per_code]; | |
| 509 for (i = 0; i < xd->x_keysym_map_keysyms_per_code; i++) | |
| 510 if (IsModifierKey (syms [i]) || | |
| 511 syms [i] == XK_Mode_switch) /* why doesn't IsModifierKey count this? */ | |
| 512 return 1; | |
| 513 return 0; | |
| 514 } | |
| 515 | |
| 516 /* key-handling code is always ugly. It just ends up working out | |
| 517 that way. | |
| 518 | |
| 519 Here are some pointers: | |
| 520 | |
| 521 -- DOWN_MASK indicates which modifiers should be treated as "down" | |
| 522 when the corresponding upstroke happens. It gets reset for | |
| 523 a particular modifier when that modifier goes up, and reset | |
| 524 for all modifiers when a non-modifier key is pressed. Example: | |
| 525 | |
| 526 I press Control-A-Shift and then release Control-A-Shift. | |
| 527 I want the Shift key to be sticky but not the Control key. | |
| 528 | |
| 529 -- LAST_DOWNKEY and RELEASE_TIME are used to keep track of | |
| 530 auto-repeat -- see below. | |
| 531 | |
| 532 -- If a modifier key is sticky, I can unstick it by pressing | |
| 533 the modifier key again. */ | |
| 534 | |
| 535 static void | |
| 536 x_handle_sticky_modifiers (XEvent *ev, struct device *d) | |
| 537 { | |
| 538 struct x_device *xd; | |
| 539 KeyCode keycode; | |
| 540 int type; | |
| 541 | |
| 542 if (!modifier_keys_are_sticky) /* Optimize for non-sticky modifiers */ | |
| 543 return; | |
| 544 | |
| 545 xd = DEVICE_X_DATA (d); | |
| 546 keycode = ev->xkey.keycode; | |
| 547 type = ev->type; | |
| 548 | |
| 549 if (keycode < xd->x_keysym_map_min_code || | |
| 550 keycode > xd->x_keysym_map_max_code) | |
| 551 return; | |
| 552 | |
| 553 if (! ((type == KeyPress || type == KeyRelease) && | |
| 554 x_key_is_modifier_p (keycode, d))) | |
| 555 { /* Not a modifier key */ | |
| 556 Bool key_event_p = (type == KeyPress || type == KeyRelease); | |
| 557 | |
| 444 | 558 if (type == ButtonPress |
| 559 || (type == KeyPress | |
| 560 && ((xd->last_downkey | |
| 561 && ((keycode != xd->last_downkey | |
| 562 || ev->xkey.time != xd->release_time))) | |
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563 || (FIXNUMP (Vmodifier_keys_sticky_time) |
| 444 | 564 && ev->xkey.time |
| 565 > (xd->modifier_release_time | |
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566 + XFIXNUM (Vmodifier_keys_sticky_time)))))) |
| 428 | 567 { |
| 568 xd->need_to_add_mask = 0; | |
| 569 xd->last_downkey = 0; | |
| 570 } | |
| 444 | 571 else if (type == KeyPress && !xd->last_downkey) |
| 572 xd->last_downkey = keycode; | |
| 573 | |
| 428 | 574 if (type == KeyPress) |
| 575 xd->release_time = 0; | |
| 576 if (type == KeyPress || type == ButtonPress) | |
| 444 | 577 { |
| 578 xd->down_mask = 0; | |
| 579 xd->modifier_release_time = 0; | |
| 580 } | |
| 428 | 581 |
| 582 if (key_event_p) | |
| 583 ev->xkey.state |= xd->need_to_add_mask; | |
| 584 else | |
| 585 ev->xbutton.state |= xd->need_to_add_mask; | |
| 586 | |
| 587 if (type == KeyRelease && keycode == xd->last_downkey) | |
| 588 /* If I hold press-and-release the Control key and then press | |
| 589 and hold down the right arrow, I want it to auto-repeat | |
| 590 Control-Right. On the other hand, if I do the same but | |
| 591 manually press the Right arrow a bunch of times, I want | |
| 592 to see one Control-Right and then a bunch of Rights. | |
| 593 This means that we need to distinguish between an | |
| 594 auto-repeated key and a key pressed and released a bunch | |
| 595 of times. | |
| 596 | |
| 597 Naturally, the designers of the X spec didn't see fit | |
| 598 to provide an obvious way to distinguish these cases. | |
| 599 So we assume that if the release and the next press | |
| 600 occur at the same time, the key was actually auto- | |
| 601 repeated. Under Open-Windows, at least, this works. */ | |
| 444 | 602 xd->modifier_release_time = xd->release_time |
| 603 = key_event_p ? ev->xkey.time : ev->xbutton.time; | |
| 428 | 604 } |
| 605 else /* Modifier key pressed */ | |
| 606 { | |
| 607 int i; | |
| 608 KeySym *syms = &xd->x_keysym_map [(keycode - xd->x_keysym_map_min_code) * | |
| 609 xd->x_keysym_map_keysyms_per_code]; | |
| 610 | |
| 611 /* If a non-modifier key was pressed in the middle of a bunch | |
| 612 of modifiers, then it unsticks all the modifiers that were | |
| 613 previously pressed. We cannot unstick the modifiers until | |
| 614 now because we want to check for auto-repeat of the | |
| 615 non-modifier key. */ | |
| 616 | |
| 617 if (xd->last_downkey) | |
| 618 { | |
| 619 xd->last_downkey = 0; | |
| 620 xd->need_to_add_mask = 0; | |
| 621 } | |
| 622 | |
| 444 | 623 if (xd->modifier_release_time |
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624 && FIXNUMP (Vmodifier_keys_sticky_time) |
| 444 | 625 && (ev->xkey.time |
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626 > xd->modifier_release_time + XFIXNUM (Vmodifier_keys_sticky_time))) |
| 444 | 627 { |
| 628 xd->need_to_add_mask = 0; | |
| 629 xd->down_mask = 0; | |
| 630 } | |
| 631 | |
| 428 | 632 #define FROB(mask) \ |
| 633 do { \ | |
| 634 if (type == KeyPress) \ | |
| 635 { \ | |
| 636 /* If modifier key is already sticky, \ | |
| 637 then unstick it. Note that we do \ | |
| 638 not test down_mask to deal with the \ | |
| 639 unlikely but possible case that the \ | |
| 640 modifier key auto-repeats. */ \ | |
| 641 if (xd->need_to_add_mask & mask) \ | |
| 642 { \ | |
| 643 xd->need_to_add_mask &= ~mask; \ | |
| 644 xd->down_mask &= ~mask; \ | |
| 645 } \ | |
| 646 else \ | |
| 647 xd->down_mask |= mask; \ | |
| 648 } \ | |
| 649 else \ | |
| 650 { \ | |
| 651 if (xd->down_mask & mask) \ | |
| 652 { \ | |
| 653 xd->down_mask &= ~mask; \ | |
| 654 xd->need_to_add_mask |= mask; \ | |
| 655 } \ | |
| 656 } \ | |
| 444 | 657 xd->modifier_release_time = ev->xkey.time; \ |
| 428 | 658 } while (0) |
| 659 | |
| 660 for (i = 0; i < xd->x_keysym_map_keysyms_per_code; i++) | |
| 661 switch (syms[i]) | |
| 662 { | |
| 663 case XK_Control_L: case XK_Control_R: FROB (ControlMask); break; | |
| 664 case XK_Shift_L: case XK_Shift_R: FROB (ShiftMask); break; | |
| 665 case XK_Meta_L: case XK_Meta_R: FROB (xd->MetaMask); break; | |
| 666 case XK_Super_L: case XK_Super_R: FROB (xd->SuperMask); break; | |
| 667 case XK_Hyper_L: case XK_Hyper_R: FROB (xd->HyperMask); break; | |
| 668 case XK_Alt_L: case XK_Alt_R: FROB (xd->AltMask); break; | |
| 669 } | |
| 670 } | |
| 671 #undef FROB | |
| 672 } | |
| 673 | |
| 674 static void | |
| 675 clear_sticky_modifiers (struct device *d) | |
| 676 { | |
| 677 struct x_device *xd = DEVICE_X_DATA (d); | |
| 678 | |
| 679 xd->need_to_add_mask = 0; | |
| 680 xd->last_downkey = 0; | |
| 681 xd->release_time = 0; | |
| 682 xd->down_mask = 0; | |
| 683 } | |
| 684 | |
| 685 static int | |
| 686 keysym_obeys_caps_lock_p (KeySym sym, struct device *d) | |
| 687 { | |
| 688 struct x_device *xd = DEVICE_X_DATA (d); | |
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689 KeySym upper, lower; |
| 428 | 690 /* Eeeeevil hack. Don't apply Caps_Lock to things that aren't alphabetic |
| 691 characters, where "alphabetic" means something more than simply A-Z. | |
| 692 That is, if Caps_Lock is down, typing ESC doesn't produce Shift-ESC. | |
| 693 But if shift-lock is down, then it does. */ | |
| 694 if (xd->lock_interpretation == XK_Shift_Lock) | |
| 695 return 1; | |
| 696 | |
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697 XConvertCase (sym, &lower, &upper); |
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698 |
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699 return !(sym == lower && sym == upper); |
| 428 | 700 } |
| 701 | |
| 702 /* called from EmacsFrame.c (actually from Xt itself) when a | |
| 703 MappingNotify event is received. In its infinite wisdom, Xt | |
| 704 decided that Xt event handlers never get MappingNotify events. | |
| 705 O'Reilly Xt Programming Manual 9.1.2 says: | |
| 706 | |
| 707 MappingNotify is automatically handled by Xt, so it isn't passed | |
| 708 to event handlers and you don't need to worry about it. | |
| 709 | |
| 710 Of course, we DO worry about it, so we need a special translation. */ | |
| 711 void | |
| 2286 | 712 emacs_Xt_mapping_action (Widget UNUSED (w), XEvent *event) |
| 428 | 713 { |
| 714 struct device *d = get_device_from_display (event->xany.display); | |
| 715 | |
| 716 if (DEVICE_X_BEING_DELETED (d)) | |
| 717 return; | |
| 718 #if 0 | |
| 719 /* nyet. Now this is handled by Xt. */ | |
| 720 XRefreshKeyboardMapping (&event->xmapping); | |
| 721 #endif | |
| 722 /* xmodmap generates about a billion MappingKeyboard events, followed | |
| 723 by a single MappingModifier event, so it might be worthwhile to | |
| 724 take extra MappingKeyboard events out of the queue before requesting | |
| 725 the current keymap from the server. */ | |
| 726 switch (event->xmapping.request) | |
| 727 { | |
| 728 case MappingKeyboard: x_reset_key_mapping (d); break; | |
| 729 case MappingModifier: x_reset_modifier_mapping (d); break; | |
| 730 case MappingPointer: /* Do something here? */ break; | |
| 2500 | 731 default: ABORT(); |
| 428 | 732 } |
| 733 } | |
| 734 | |
| 735 | |
| 736 /************************************************************************/ | |
| 737 /* X to Emacs event conversion */ | |
| 738 /************************************************************************/ | |
| 739 | |
| 740 static Lisp_Object | |
| 741 x_keysym_to_emacs_keysym (KeySym keysym, int simple_p) | |
| 742 { | |
| 2828 | 743 Extbyte *name; |
| 744 DECLARE_EISTRING(einame); | |
| 745 | |
| 428 | 746 if (keysym >= XK_exclam && keysym <= XK_asciitilde) |
| 747 /* We must assume that the X keysym numbers for the ASCII graphic | |
| 748 characters are the same as their ASCII codes. */ | |
| 749 return make_char (keysym); | |
| 750 | |
|
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diff
changeset
|
751 if (keysym >= 0x01000000 && keysym <= 0x0110FFFF) |
|
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parents:
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diff
changeset
|
752 { |
|
1d1f385c9149
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Aidan Kehoe <kehoea@parhasard.net>
parents:
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diff
changeset
|
753 /* These keysyms malloc with XKeysymToString(), *every time the |
|
1d1f385c9149
Call XKeysymToString() much less, it leaks.
Aidan Kehoe <kehoea@parhasard.net>
parents:
5581
diff
changeset
|
754 function is called.* Avoid leaking, construct the keysym string |
|
1d1f385c9149
Call XKeysymToString() much less, it leaks.
Aidan Kehoe <kehoea@parhasard.net>
parents:
5581
diff
changeset
|
755 ourselves. */ |
|
1d1f385c9149
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Aidan Kehoe <kehoea@parhasard.net>
parents:
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diff
changeset
|
756 Ascbyte buf [10]; |
|
1d1f385c9149
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parents:
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diff
changeset
|
757 qxesprintf ((Ibyte *) buf, keysym & 0xff0000 ? "U%06X" : "U%04X", |
|
1d1f385c9149
Call XKeysymToString() much less, it leaks.
Aidan Kehoe <kehoea@parhasard.net>
parents:
5581
diff
changeset
|
758 (unsigned int) (keysym & 0xffffff)); |
|
1d1f385c9149
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parents:
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diff
changeset
|
759 return KEYSYM (buf); |
|
1d1f385c9149
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parents:
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diff
changeset
|
760 } |
|
1d1f385c9149
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parents:
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diff
changeset
|
761 |
| 428 | 762 switch (keysym) |
| 763 { | |
| 764 /* These would be handled correctly by the default case, but by | |
| 765 special-casing them here we don't garbage a string or call | |
| 766 intern(). */ | |
| 767 case XK_BackSpace: return QKbackspace; | |
| 768 case XK_Tab: return QKtab; | |
| 769 case XK_Linefeed: return QKlinefeed; | |
| 770 case XK_Return: return QKreturn; | |
| 771 case XK_Escape: return QKescape; | |
| 772 case XK_space: return QKspace; | |
| 773 case XK_Delete: return QKdelete; | |
| 774 case 0: return Qnil; | |
| 775 default: | |
| 776 if (simple_p) return Qnil; | |
| 777 name = XKeysymToString (keysym); | |
| 778 if (!name || !name[0]) | |
| 779 /* This happens if there is a mismatch between the Xlib of | |
| 780 XEmacs and the Xlib of the X server... | |
| 781 | |
| 782 Let's hard-code in some knowledge of common keysyms introduced | |
| 783 in recent X11 releases. Snarfed from X11/keysymdef.h | |
| 784 | |
| 785 Probably we should add some stuff here for X11R6. */ | |
| 786 switch (keysym) | |
| 787 { | |
| 788 case 0xFF95: return KEYSYM ("kp-home"); | |
| 789 case 0xFF96: return KEYSYM ("kp-left"); | |
| 790 case 0xFF97: return KEYSYM ("kp-up"); | |
| 791 case 0xFF98: return KEYSYM ("kp-right"); | |
| 792 case 0xFF99: return KEYSYM ("kp-down"); | |
| 793 case 0xFF9A: return KEYSYM ("kp-prior"); | |
| 794 case 0xFF9B: return KEYSYM ("kp-next"); | |
| 795 case 0xFF9C: return KEYSYM ("kp-end"); | |
| 796 case 0xFF9D: return KEYSYM ("kp-begin"); | |
| 797 case 0xFF9E: return KEYSYM ("kp-insert"); | |
| 798 case 0xFF9F: return KEYSYM ("kp-delete"); | |
| 799 | |
| 800 case 0x1005FF10: return KEYSYM ("SunF36"); /* labeled F11 */ | |
| 801 case 0x1005FF11: return KEYSYM ("SunF37"); /* labeled F12 */ | |
| 802 default: | |
| 803 { | |
| 2828 | 804 Ascbyte buf [64]; |
| 428 | 805 sprintf (buf, "unknown-keysym-0x%X", (int) keysym); |
| 806 return KEYSYM (buf); | |
| 807 } | |
| 808 } | |
| 2828 | 809 |
| 428 | 810 /* If it's got a one-character name, that's good enough. */ |
| 811 if (!name[1]) | |
| 2828 | 812 return make_char ((Ichar)name[0]); |
| 813 | |
| 814 /* In theory the Host Portable Character Set is just ASCII, but | |
| 815 trusting X11 implementors to get that right is likely to lead to | |
| 816 tears. */ | |
| 817 eicpy_ext(einame, name, Qbinary); | |
| 428 | 818 |
| 819 /* If it's in the "Keyboard" character set, downcase it. | |
| 820 The case of those keysyms is too totally random for us to | |
| 821 force anyone to remember them. | |
| 2828 | 822 The case of the other character sets is significant, however. */ |
| 428 | 823 if ((((unsigned int) keysym) & (~0x1FF)) == ((unsigned int) 0xFE00)) |
| 824 { | |
| 2828 | 825 Ibyte *iname; |
| 826 eilwr(einame); | |
| 827 | |
| 828 for (iname = eidata(einame); *iname != '\0';) | |
| 829 { | |
| 830 if (*iname == '_') | |
| 831 { | |
| 832 *iname = '-'; | |
| 833 } | |
| 834 INC_IBYTEPTR(iname); | |
| 428 | 835 } |
| 836 } | |
| 2837 | 837 return KEYSYM ((const CIbyte *) eidata (einame)); |
| 428 | 838 } |
| 839 } | |
| 840 | |
| 841 static Lisp_Object | |
|
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changeset
|
842 x_to_emacs_keysym (XKeyPressedEvent *event, int simple_p, KeySym *x_keysym_out) |
| 428 | 843 /* simple_p means don't try too hard (ASCII only) */ |
| 844 { | |
|
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changeset
|
845 KeySym keysym = NoSymbol; |
| 428 | 846 |
| 847 #ifdef HAVE_XIM | |
| 3072 | 848 int len = 0; |
| 442 | 849 /* Some implementations of XmbLookupString don't return |
| 850 XBufferOverflow correctly, so increase the size of the xim input | |
| 851 buffer from 64 to the more reasonable size 513, as Emacs has done. | |
| 852 From Kenichi Handa. */ | |
| 853 char buffer[513]; | |
| 428 | 854 char *bufptr = buffer; |
| 855 int bufsiz = sizeof (buffer); | |
| 856 Status status; | |
| 857 #ifdef XIM_XLIB | |
| 858 XIC xic = FRAME_X_XIC (x_any_window_to_frame | |
| 859 (get_device_from_display (event->display), | |
| 860 event->window)); | |
| 861 #endif /* XIM_XLIB */ | |
| 862 #endif /* HAVE_XIM */ | |
| 863 | |
|
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changeset
|
864 *x_keysym_out = NoSymbol; |
|
f3ab0c29c246
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changeset
|
865 |
| 428 | 866 /* We use XLookupString if we're not using XIM, or are using |
| 867 XIM_XLIB but input context creation failed. */ | |
| 868 #if ! (defined (HAVE_XIM) && defined (XIM_MOTIF)) | |
| 869 #if defined (HAVE_XIM) && defined (XIM_XLIB) | |
| 870 if (!xic) | |
| 871 #endif /* XIM_XLIB */ | |
| 872 { | |
| 873 /* Apparently it's necessary to specify a dummy here (rather | |
| 874 than passing in 0) to avoid crashes on German IRIX */ | |
| 875 char dummy[256]; | |
| 876 XLookupString (event, dummy, 200, &keysym, 0); | |
|
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changeset
|
877 *x_keysym_out = keysym; |
| 428 | 878 return (IsModifierKey (keysym) || keysym == XK_Mode_switch ) |
| 879 ? Qnil : x_keysym_to_emacs_keysym (keysym, simple_p); | |
| 880 } | |
| 881 #endif /* ! XIM_MOTIF */ | |
| 882 | |
| 883 #ifdef HAVE_XIM | |
| 884 Lookup_String: /* Come-From XBufferOverflow */ | |
| 885 #ifdef XIM_MOTIF | |
| 886 len = XmImMbLookupString (XtWindowToWidget (event->display, event->window), | |
| 887 event, bufptr, bufsiz, &keysym, &status); | |
| 888 #else /* XIM_XLIB */ | |
| 889 if (xic) | |
| 890 len = XmbLookupString (xic, event, bufptr, bufsiz, &keysym, &status); | |
| 1494 | 891 #endif /* XIM_MOTIF */ |
| 428 | 892 |
| 893 #ifdef DEBUG_XEMACS | |
| 442 | 894 if (debug_x_events > 0) |
| 428 | 895 { |
| 896 stderr_out (" status="); | |
| 897 #define print_status_when(S) if (status == S) stderr_out (#S) | |
| 898 print_status_when (XLookupKeySym); | |
| 899 print_status_when (XLookupBoth); | |
| 900 print_status_when (XLookupChars); | |
| 901 print_status_when (XLookupNone); | |
| 902 print_status_when (XBufferOverflow); | |
| 903 | |
| 904 if (status == XLookupKeySym || status == XLookupBoth) | |
| 905 stderr_out (" keysym=%s", XKeysymToString (keysym)); | |
| 906 if (status == XLookupChars || status == XLookupBoth) | |
| 907 { | |
| 3072 | 908 if (len > 1) |
| 428 | 909 { |
| 910 int j; | |
| 911 stderr_out (" chars=\""); | |
| 912 for (j=0; j<len; j++) | |
| 3142 | 913 { |
| 914 if (040 <= bufptr[j] && bufptr[j] >= 0177) | |
| 915 { | |
| 916 stderr_out ("%c", bufptr[j]); | |
| 917 } | |
| 918 else | |
| 919 { | |
| 920 stderr_out ("\\%o", (unsigned)(bufptr[j])); | |
| 921 } | |
| 922 } | |
| 428 | 923 stderr_out ("\""); |
| 924 } | |
| 925 else if (bufptr[0] <= 32 || bufptr[0] >= 127) | |
| 926 stderr_out (" char=0x%x", bufptr[0]); | |
| 927 else | |
| 928 stderr_out (" char=%c", bufptr[0]); | |
| 929 } | |
| 930 stderr_out ("\n"); | |
| 931 } | |
| 932 #endif /* DEBUG_XEMACS */ | |
| 933 | |
| 934 switch (status) | |
| 935 { | |
| 936 case XLookupKeySym: | |
| 937 case XLookupBoth: | |
|
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diff
changeset
|
938 *x_keysym_out = keysym; |
| 428 | 939 return (IsModifierKey (keysym) || keysym == XK_Mode_switch ) |
| 940 ? Qnil : x_keysym_to_emacs_keysym (keysym, simple_p); | |
| 941 | |
| 942 case XLookupChars: | |
| 943 { | |
| 944 /* Generate multiple emacs events */ | |
| 945 struct device *d = get_device_from_display (event->display); | |
| 867 | 946 Ichar ch; |
| 428 | 947 Lisp_Object instream, fb_instream; |
| 948 Lstream *istr; | |
| 949 struct gcpro gcpro1, gcpro2; | |
| 950 | |
| 440 | 951 fb_instream = make_fixed_buffer_input_stream (bufptr, len); |
| 952 | |
| 3142 | 953 /* [[ Use get_coding_system_for_text_file |
| 954 (Vcomposed_input_coding_system, 0) ]] | |
| 955 | |
| 956 Nope. If it is possible for the X libraries to have multiple IM | |
| 957 connections on different DISPLAYs active at once, this should be | |
| 958 a console-specific variable (like a TTY's coding system) but I've | |
| 959 seen no evidence that that is possible. Aidan Kehoe, | |
| 960 2005-12-17. */ | |
| 961 | |
| 428 | 962 instream = |
| 771 | 963 make_coding_input_stream |
| 3142 | 964 (XLSTREAM (fb_instream), Qkeyboard, CODING_DECODE, 0); |
| 428 | 965 |
| 966 istr = XLSTREAM (instream); | |
| 967 | |
| 968 GCPRO2 (instream, fb_instream); | |
| 867 | 969 while ((ch = Lstream_get_ichar (istr)) != EOF) |
| 428 | 970 { |
| 971 Lisp_Object emacs_event = Fmake_event (Qnil, Qnil); | |
| 440 | 972 Lisp_Event *ev = XEVENT (emacs_event); |
| 428 | 973 ev->channel = DEVICE_CONSOLE (d); |
|
4780
2fd201d73a92
Call character_to_event on characters received from XIM, event-Xt.c
Aidan Kehoe <kehoea@parhasard.net>
parents:
4528
diff
changeset
|
974 XSET_EVENT_TYPE (emacs_event, key_press_event); |
|
2fd201d73a92
Call character_to_event on characters received from XIM, event-Xt.c
Aidan Kehoe <kehoea@parhasard.net>
parents:
4528
diff
changeset
|
975 /* Make sure space and linefeed and so on get the proper |
|
2fd201d73a92
Call character_to_event on characters received from XIM, event-Xt.c
Aidan Kehoe <kehoea@parhasard.net>
parents:
4528
diff
changeset
|
976 keysyms. */ |
|
2fd201d73a92
Call character_to_event on characters received from XIM, event-Xt.c
Aidan Kehoe <kehoea@parhasard.net>
parents:
4528
diff
changeset
|
977 character_to_event (ch, ev, XCONSOLE (ev->channel), |
|
2fd201d73a92
Call character_to_event on characters received from XIM, event-Xt.c
Aidan Kehoe <kehoea@parhasard.net>
parents:
4528
diff
changeset
|
978 latin_1_maps_to_itself, 0); |
| 960 | 979 ev->timestamp = event->time; |
| 1204 | 980 enqueue_dispatch_event (emacs_event); |
| 428 | 981 } |
| 982 Lstream_close (istr); | |
| 983 UNGCPRO; | |
| 984 Lstream_delete (istr); | |
| 985 Lstream_delete (XLSTREAM (fb_instream)); | |
| 986 return Qnil; | |
| 987 } | |
| 988 case XLookupNone: return Qnil; | |
| 989 case XBufferOverflow: | |
| 2367 | 990 /* !!#### needs work */ |
| 851 | 991 bufptr = (char *) ALLOCA (len+1); |
| 428 | 992 bufsiz = len+1; |
| 993 goto Lookup_String; | |
| 994 } | |
| 801 | 995 return Qnil; /* not (usually) reached */ |
| 428 | 996 #endif /* HAVE_XIM */ |
| 997 } | |
| 998 | |
| 999 static void | |
| 1000 set_last_server_timestamp (struct device *d, XEvent *x_event) | |
| 1001 { | |
| 1002 Time t; | |
| 1003 switch (x_event->type) | |
| 1004 { | |
| 1005 case KeyPress: | |
| 1006 case KeyRelease: t = x_event->xkey.time; break; | |
| 1007 case ButtonPress: | |
| 1008 case ButtonRelease: t = x_event->xbutton.time; break; | |
| 1009 case EnterNotify: | |
| 1010 case LeaveNotify: t = x_event->xcrossing.time; break; | |
| 1011 case MotionNotify: t = x_event->xmotion.time; break; | |
| 1012 case PropertyNotify: t = x_event->xproperty.time; break; | |
| 1013 case SelectionClear: t = x_event->xselectionclear.time; break; | |
| 1014 case SelectionRequest: t = x_event->xselectionrequest.time; break; | |
| 1015 case SelectionNotify: t = x_event->xselection.time; break; | |
| 1016 default: return; | |
| 1017 } | |
| 1018 DEVICE_X_LAST_SERVER_TIMESTAMP (d) = t; | |
| 1019 } | |
| 1020 | |
| 1021 static int | |
| 440 | 1022 x_event_to_emacs_event (XEvent *x_event, Lisp_Event *emacs_event) |
| 428 | 1023 { |
| 1024 Display *display = x_event->xany.display; | |
| 1025 struct device *d = get_device_from_display (display); | |
| 1026 struct x_device *xd = DEVICE_X_DATA (d); | |
| 1027 | |
| 1028 if (DEVICE_X_BEING_DELETED (d)) | |
| 2828 | 1029 { |
| 1030 /* [[ Uh, is this 0 correct? ]] | |
| 1031 | |
| 1032 Yup--it means emacs_Xt_event_handler, the only place that calls | |
| 1033 this, doesn't queue the emacs_event dispatch, instead immediately | |
| 1034 deallocating it. */ | |
| 1035 return 0; | |
| 1036 } | |
| 428 | 1037 |
| 1038 set_last_server_timestamp (d, x_event); | |
| 1039 | |
| 1040 switch (x_event->type) | |
| 1041 { | |
| 1042 case KeyRelease: | |
| 934 | 1043 { |
| 1044 x_handle_sticky_modifiers (x_event, d); | |
| 1045 return 0; | |
| 1046 } | |
| 428 | 1047 case KeyPress: |
| 1048 case ButtonPress: | |
| 1049 case ButtonRelease: | |
| 1050 { | |
| 442 | 1051 int modifiers = 0; |
| 428 | 1052 int shift_p, lock_p; |
| 1053 Bool key_event_p = (x_event->type == KeyPress); | |
| 1054 unsigned int *state = | |
| 1055 key_event_p ? &x_event->xkey.state : &x_event->xbutton.state; | |
| 1056 | |
| 1057 /* If this is a synthetic KeyPress or Button event, and the user | |
| 1058 has expressed a disinterest in this security hole, then drop | |
| 1059 it on the floor. */ | |
| 1060 if ((key_event_p | |
| 1061 ? x_event->xkey.send_event | |
| 1062 : x_event->xbutton.send_event) | |
| 1063 #ifdef EXTERNAL_WIDGET | |
| 1064 /* ben: events get sent to an ExternalShell using XSendEvent. | |
| 1065 This is not a perfect solution. */ | |
| 1066 && !FRAME_X_EXTERNAL_WINDOW_P | |
| 1067 (x_any_window_to_frame (d, x_event->xany.window)) | |
| 1068 #endif | |
| 1069 && !x_allow_sendevents) | |
| 1070 return 0; | |
| 1071 | |
| 1072 DEVICE_X_MOUSE_TIMESTAMP (d) = | |
| 1073 DEVICE_X_GLOBAL_MOUSE_TIMESTAMP (d) = | |
| 1074 key_event_p ? x_event->xkey.time : x_event->xbutton.time; | |
| 1075 | |
| 1076 x_handle_sticky_modifiers (x_event, d); | |
| 1077 | |
| 442 | 1078 if (*state & ControlMask) modifiers |= XEMACS_MOD_CONTROL; |
| 1079 if (*state & xd->MetaMask) modifiers |= XEMACS_MOD_META; | |
| 1080 if (*state & xd->SuperMask) modifiers |= XEMACS_MOD_SUPER; | |
| 1081 if (*state & xd->HyperMask) modifiers |= XEMACS_MOD_HYPER; | |
| 1082 if (*state & xd->AltMask) modifiers |= XEMACS_MOD_ALT; | |
| 1083 { | |
| 1084 int numero_de_botao = -1; | |
| 1085 | |
| 1086 if (!key_event_p) | |
| 1087 numero_de_botao = x_event->xbutton.button; | |
| 1088 | |
| 1089 /* the button gets noted either in the button or the modifiers | |
| 1090 field, but not both. */ | |
| 1091 if (numero_de_botao != 1 && (*state & Button1Mask)) | |
| 1092 modifiers |= XEMACS_MOD_BUTTON1; | |
| 1093 if (numero_de_botao != 2 && (*state & Button2Mask)) | |
| 1094 modifiers |= XEMACS_MOD_BUTTON2; | |
| 1095 if (numero_de_botao != 3 && (*state & Button3Mask)) | |
| 1096 modifiers |= XEMACS_MOD_BUTTON3; | |
| 1097 if (numero_de_botao != 4 && (*state & Button4Mask)) | |
| 1098 modifiers |= XEMACS_MOD_BUTTON4; | |
| 1099 if (numero_de_botao != 5 && (*state & Button5Mask)) | |
| 1100 modifiers |= XEMACS_MOD_BUTTON5; | |
| 1101 } | |
| 428 | 1102 |
| 1103 /* Ignore the Caps_Lock key if: | |
| 1104 - any other modifiers are down, so that Caps_Lock doesn't | |
| 1105 turn C-x into C-X, which would suck. | |
| 1106 - the event was a mouse event. */ | |
| 1107 if (modifiers || ! key_event_p) | |
| 1108 *state &= (~LockMask); | |
| 1109 | |
| 1110 shift_p = *state & ShiftMask; | |
| 1111 lock_p = *state & LockMask; | |
| 1112 | |
| 1113 if (shift_p || lock_p) | |
| 442 | 1114 modifiers |= XEMACS_MOD_SHIFT; |
| 428 | 1115 |
| 1116 if (key_event_p) | |
| 1117 { | |
| 1118 Lisp_Object keysym; | |
| 1119 XKeyEvent *ev = &x_event->xkey; | |
|
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Aidan Kehoe <kehoea@parhasard.net>
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changeset
|
1120 KeySym x_keysym = NoSymbol; |
| 428 | 1121 /* This used to compute the frame from the given X window and |
| 1122 store it here, but we really don't care about the frame. */ | |
| 934 | 1123 SET_EVENT_CHANNEL (emacs_event, DEVICE_CONSOLE (d)); |
|
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changeset
|
1124 keysym = x_to_emacs_keysym (&x_event->xkey, 0, &x_keysym); |
| 428 | 1125 |
| 1126 /* If the emacs keysym is nil, then that means that the X | |
| 1127 keysym was either a Modifier or NoSymbol, which | |
| 1128 probably means that we're in the midst of reading a | |
| 1129 Multi_key sequence, or a "dead" key prefix, or XIM | |
| 1130 input. Ignore it. */ | |
| 1131 if (NILP (keysym)) | |
| 1132 return 0; | |
| 1133 | |
| 3171 | 1134 /* If we have the map from keycodes to the US layout for our |
| 1135 keyboard available, store the US layout interpretation of | |
| 1136 that key in the event structure, in case a binding lookup | |
| 1137 fails and we want to fall back to the US layout binding. | |
| 1138 | |
| 1139 This _might_ be possible within an XKB framework, changing | |
| 1140 the keyboard to a US XKB layout for a moment at startup, | |
| 1141 storing the correspondance, and changing it back. But that | |
| 1142 won't work on non-XKB servers, it makes our already slow | |
| 1143 startup slower, and it's not clear that it's really any | |
| 1144 easier or more maintainable than storing a correspondence in | |
| 1145 Lisp. */ | |
| 1146 | |
| 1147 if (!NILP(Vx_us_keymap_description) && | |
| 1148 VECTORP(Vx_us_keymap_description) && | |
| 1149 ev->keycode >= (unsigned)Vx_us_keymap_first_keycode && | |
| 1150 ev->keycode | |
| 1151 < (unsigned)XVECTOR_LENGTH(Vx_us_keymap_description)) | |
| 1152 { | |
| 1153 Lisp_Object entr = XVECTOR_DATA(Vx_us_keymap_description) | |
| 1154 [ev->keycode - Vx_us_keymap_first_keycode]; | |
| 1155 Ichar alternate = '\0'; | |
| 1156 | |
| 1157 if (!NILP (entr)) | |
| 1158 { | |
| 1159 if (CHARP(entr)) | |
| 1160 { | |
| 1161 alternate = XCHAR(entr); | |
| 1162 } | |
| 1163 else if (VECTORP(entr)) | |
| 1164 { | |
| 1165 if (modifiers & XEMACS_MOD_SHIFT | |
| 1166 && XVECTOR_LENGTH(Vx_us_keymap_description) > 1) | |
| 1167 { | |
| 1168 entr = XVECTOR_DATA(entr)[1]; | |
| 1169 if (CHARP(entr)) | |
| 1170 { | |
| 1171 alternate = XCHAR(entr); | |
| 1172 } | |
| 1173 } | |
| 1174 else if (XVECTOR_LENGTH(Vx_us_keymap_description) | |
| 1175 > 0) | |
| 1176 { | |
| 1177 entr = XVECTOR_DATA(entr)[0]; | |
| 1178 if (CHARP(entr)) | |
| 1179 { | |
| 1180 alternate = XCHAR(entr); | |
| 1181 } | |
| 1182 } | |
| 1183 } | |
| 1184 if ('\0' != alternate) | |
| 1185 { | |
| 1186 SET_EVENT_KEY_ALT_KEYCHARS(emacs_event, KEYCHAR_QWERTY, | |
| 1187 alternate); | |
| 1188 } | |
| 1189 } | |
| 1190 } | |
| 1191 | |
| 428 | 1192 /* More Caps_Lock garbage: Caps_Lock should *only* add the |
| 1193 shift modifier to two-case keys (that is, A-Z and | |
| 1194 related characters). So at this point (after looking up | |
| 1195 the keysym) if the keysym isn't a dual-case alphabetic, | |
| 1196 and if the caps lock key was down but the shift key | |
| 1197 wasn't, then turn off the shift modifier. Gag barf */ | |
| 2828 | 1198 |
| 428 | 1199 if (lock_p && !shift_p && |
|
5559
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Use a better, more portable approach to the shift-F11 problem.
Aidan Kehoe <kehoea@parhasard.net>
parents:
5558
diff
changeset
|
1200 ! (x_keysym && keysym_obeys_caps_lock_p (x_keysym, d))) |
| 442 | 1201 modifiers &= (~XEMACS_MOD_SHIFT); |
| 428 | 1202 |
| 1203 /* If this key contains two distinct keysyms, that is, | |
| 1204 "shift" generates a different keysym than the | |
| 1205 non-shifted key, then don't apply the shift modifier | |
| 1206 bit: it's implicit. Otherwise, if there would be no | |
| 1207 other way to tell the difference between the shifted | |
| 1208 and unshifted version of this key, apply the shift bit. | |
| 1209 Non-graphics, like Backspace and F1 get the shift bit | |
| 1210 in the modifiers slot. Neither the characters "a", | |
| 1211 "A", "2", nor "@" normally have the shift bit set. | |
| 1212 However, "F1" normally does. */ | |
| 3171 | 1213 |
| 442 | 1214 if (modifiers & XEMACS_MOD_SHIFT) |
| 428 | 1215 { |
| 1216 int Mode_switch_p = *state & xd->ModeMask; | |
| 1217 KeySym bot = XLookupKeysym (ev, Mode_switch_p ? 2 : 0); | |
|
5559
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Use a better, more portable approach to the shift-F11 problem.
Aidan Kehoe <kehoea@parhasard.net>
parents:
5558
diff
changeset
|
1218 if (x_keysym && bot && x_keysym != bot) |
| 442 | 1219 modifiers &= ~XEMACS_MOD_SHIFT; |
| 428 | 1220 } |
| 934 | 1221 set_event_type (emacs_event, key_press_event); |
| 1222 SET_EVENT_TIMESTAMP (emacs_event, ev->time); | |
| 1204 | 1223 SET_EVENT_KEY_MODIFIERS (emacs_event, modifiers); |
| 1224 SET_EVENT_KEY_KEYSYM (emacs_event, keysym); | |
| 428 | 1225 } |
| 1226 else /* Mouse press/release event */ | |
| 1227 { | |
| 1228 XButtonEvent *ev = &x_event->xbutton; | |
| 1229 struct frame *frame = x_window_to_frame (d, ev->window); | |
| 1230 | |
| 1231 if (! frame) | |
| 1232 return 0; /* not for us */ | |
| 934 | 1233 set_event_type (emacs_event, (x_event->type == ButtonPress) ? |
| 1234 button_press_event : button_release_event); | |
| 1204 | 1235 SET_EVENT_CHANNEL (emacs_event, wrap_frame (frame)); |
| 1236 | |
| 1237 SET_EVENT_BUTTON_MODIFIERS (emacs_event, modifiers); | |
| 934 | 1238 SET_EVENT_TIMESTAMP (emacs_event, ev->time); |
| 1204 | 1239 SET_EVENT_BUTTON_BUTTON (emacs_event, ev->button); |
| 1240 SET_EVENT_BUTTON_X (emacs_event, ev->x); | |
| 1241 SET_EVENT_BUTTON_Y (emacs_event, ev->y); | |
| 428 | 1242 /* because we don't seem to get a FocusIn event for button clicks |
| 1243 when a widget-glyph is selected we will assume that we want the | |
| 1244 focus if a button gets pressed. */ | |
| 1245 if (x_event->type == ButtonPress) | |
| 1246 handle_focus_event_1 (frame, 1); | |
| 1247 } | |
| 1248 } | |
| 1249 break; | |
| 1250 | |
| 1251 case MotionNotify: | |
| 1252 { | |
| 1253 XMotionEvent *ev = &x_event->xmotion; | |
| 1254 struct frame *frame = x_window_to_frame (d, ev->window); | |
| 442 | 1255 int modifiers = 0; |
| 428 | 1256 XMotionEvent event2; |
| 1257 | |
| 1258 if (! frame) | |
| 1259 return 0; /* not for us */ | |
| 1260 | |
| 1261 /* We use MotionHintMask, so we will get only one motion event | |
| 1262 until the next time we call XQueryPointer or the user | |
| 1263 clicks the mouse. So call XQueryPointer now (meaning that | |
| 1264 the event will be in sync with the server just before | |
| 1265 Fnext_event() returns). If the mouse is still in motion, | |
| 1266 then the server will immediately generate exactly one more | |
| 1267 motion event, which will be on the queue waiting for us | |
| 1268 next time around. */ | |
| 1269 event2 = *ev; | |
| 1270 if (XQueryPointer (event2.display, event2.window, | |
| 1271 &event2.root, &event2.subwindow, | |
| 1272 &event2.x_root, &event2.y_root, | |
| 1273 &event2.x, &event2.y, | |
| 1274 &event2.state)) | |
| 1275 ev = &event2; /* only one structure copy */ | |
| 1276 | |
| 1277 DEVICE_X_MOUSE_TIMESTAMP (d) = ev->time; | |
| 1204 | 1278 SET_EVENT_CHANNEL (emacs_event, wrap_frame (frame)); |
| 934 | 1279 set_event_type (emacs_event, pointer_motion_event); |
| 1280 SET_EVENT_TIMESTAMP (emacs_event, ev->time); | |
| 1204 | 1281 SET_EVENT_MOTION_X (emacs_event, ev->x); |
| 1282 SET_EVENT_MOTION_Y (emacs_event, ev->y); | |
| 442 | 1283 if (ev->state & ShiftMask) modifiers |= XEMACS_MOD_SHIFT; |
| 1284 if (ev->state & ControlMask) modifiers |= XEMACS_MOD_CONTROL; | |
| 1285 if (ev->state & xd->MetaMask) modifiers |= XEMACS_MOD_META; | |
| 1286 if (ev->state & xd->SuperMask) modifiers |= XEMACS_MOD_SUPER; | |
| 1287 if (ev->state & xd->HyperMask) modifiers |= XEMACS_MOD_HYPER; | |
| 1288 if (ev->state & xd->AltMask) modifiers |= XEMACS_MOD_ALT; | |
| 1289 if (ev->state & Button1Mask) modifiers |= XEMACS_MOD_BUTTON1; | |
| 1290 if (ev->state & Button2Mask) modifiers |= XEMACS_MOD_BUTTON2; | |
| 1291 if (ev->state & Button3Mask) modifiers |= XEMACS_MOD_BUTTON3; | |
| 1292 if (ev->state & Button4Mask) modifiers |= XEMACS_MOD_BUTTON4; | |
| 1293 if (ev->state & Button5Mask) modifiers |= XEMACS_MOD_BUTTON5; | |
| 428 | 1294 /* Currently ignores Shift_Lock but probably shouldn't |
| 1295 (but it definitely should ignore Caps_Lock). */ | |
| 1204 | 1296 SET_EVENT_MOTION_MODIFIERS (emacs_event, modifiers); |
| 428 | 1297 } |
| 1298 break; | |
| 1299 | |
| 1300 case ClientMessage: | |
| 1301 { | |
| 1302 /* Patch bogus TAKE_FOCUS messages from MWM; CurrentTime is | |
| 1303 passed as the timestamp of the TAKE_FOCUS, which the ICCCM | |
| 1304 explicitly prohibits. */ | |
| 1305 XClientMessageEvent *ev = &x_event->xclient; | |
|
4790
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Jerry James <james@xemacs.org>
parents:
4780
diff
changeset
|
1306 |
| 428 | 1307 if (ev->message_type == DEVICE_XATOM_WM_PROTOCOLS (d) |
| 1308 && (Atom) (ev->data.l[0]) == DEVICE_XATOM_WM_TAKE_FOCUS (d) | |
| 1309 && (Atom) (ev->data.l[1]) == 0) | |
| 1310 { | |
| 1311 ev->data.l[1] = DEVICE_X_LAST_SERVER_TIMESTAMP (d); | |
| 1312 } | |
| 1313 } | |
| 1314 /* fall through */ | |
| 1315 | |
| 1316 default: /* it's a magic event */ | |
| 1317 { | |
| 1318 struct frame *frame; | |
| 1319 Window w; | |
| 934 | 1320 XEvent *x_event_copy; |
| 1321 SET_EVENT_TYPE (emacs_event, magic_event); | |
| 1204 | 1322 x_event_copy = &EVENT_MAGIC_X_EVENT (emacs_event); |
| 428 | 1323 |
| 1324 #define FROB(event_member, window_member) \ | |
| 1325 x_event_copy->event_member = x_event->event_member; \ | |
| 1326 w = x_event->event_member.window_member | |
| 1327 | |
| 1328 switch (x_event->type) | |
| 1329 { | |
| 1330 case SelectionRequest: FROB(xselectionrequest, owner); break; | |
| 1331 case SelectionClear: FROB(xselectionclear, window); break; | |
| 1332 case SelectionNotify: FROB(xselection, requestor); break; | |
| 1333 case PropertyNotify: FROB(xproperty, window); break; | |
| 1334 case ClientMessage: FROB(xclient, window); break; | |
| 1335 case ConfigureNotify: FROB(xconfigure, window); break; | |
| 1336 case Expose: | |
| 1337 case GraphicsExpose: FROB(xexpose, window); break; | |
| 1338 case MapNotify: | |
| 1339 case UnmapNotify: FROB(xmap, window); break; | |
| 1340 case EnterNotify: | |
| 1341 case LeaveNotify: FROB(xcrossing, window); break; | |
| 1342 case FocusIn: | |
| 1343 case FocusOut: FROB(xfocus, window); break; | |
| 1344 case VisibilityNotify: FROB(xvisibility, window); break; | |
| 442 | 1345 case CreateNotify: FROB(xcreatewindow, window); break; |
| 428 | 1346 default: |
| 1347 w = x_event->xany.window; | |
| 1348 *x_event_copy = *x_event; | |
| 1349 break; | |
| 1350 } | |
| 1351 #undef FROB | |
| 1352 frame = x_any_window_to_frame (d, w); | |
| 1353 | |
| 1354 if (!frame) | |
| 1355 return 0; | |
| 1356 | |
| 1204 | 1357 SET_EVENT_CHANNEL (emacs_event, wrap_frame (frame)); |
| 428 | 1358 break; |
| 1359 } | |
| 1360 } | |
| 1361 return 1; | |
| 1362 } | |
| 1363 | |
| 1364 | |
| 1365 | |
| 1366 /************************************************************************/ | |
| 1367 /* magic-event handling */ | |
| 1368 /************************************************************************/ | |
| 1369 | |
| 1370 static void | |
| 1371 handle_focus_event_1 (struct frame *f, int in_p) | |
| 1372 { | |
| 863 | 1373 handle_focus_event_2 (XtWindow (FRAME_X_TEXT_WIDGET (f)), f, in_p); |
| 1374 } | |
| 1375 | |
| 1376 static void | |
| 1377 handle_focus_event_2 (Window win, struct frame *f, int in_p) | |
| 1378 { | |
| 1379 /* Although this treats focus differently for all widgets (including | |
| 1380 the frame) it seems to work ok. */ | |
| 1381 Widget needs_it = XtWindowToWidget (FRAME_X_DISPLAY (f), win); | |
| 1382 | |
| 428 | 1383 #if XtSpecificationRelease > 5 |
| 450 | 1384 widget_with_focus = XtGetKeyboardFocusWidget (FRAME_X_TEXT_WIDGET (f)); |
| 428 | 1385 #endif |
| 1386 #ifdef HAVE_XIM | |
| 1387 XIM_focus_event (f, in_p); | |
| 1388 #endif /* HAVE_XIM */ | |
| 450 | 1389 |
| 428 | 1390 /* On focus change, clear all memory of sticky modifiers |
| 1391 to avoid non-intuitive behavior. */ | |
| 1392 clear_sticky_modifiers (XDEVICE (FRAME_DEVICE (f))); | |
| 1393 | |
| 1394 /* We don't want to handle the focus change now, because we might | |
| 1395 be in an accept-process-output, sleep-for, or sit-for. So | |
| 1396 we enqueue it. | |
| 1397 | |
| 1398 Actually, we half handle it: we handle it as far as changing the | |
| 1399 box cursor for redisplay, but we don't call any hooks or do any | |
| 1400 select-frame stuff until after the sit-for. | |
| 1401 | |
| 1402 Unfortunately native widgets break the model because they grab | |
| 1403 the keyboard focus and nothing sets it back again. I cannot find | |
| 1404 any reasonable way to do this elsewhere so we assert here that | |
| 1405 the keyboard focus is on the emacs text widget. Menus and dialogs | |
| 1406 do this in their selection callback, but we don't want that since | |
| 1407 a button having focus is legitimate. An edit field having focus | |
| 1408 is mandatory. Weirdly you get a FocusOut event when you click in | |
| 442 | 1409 a widget-glyph but you don't get a corresponding FocusIn when you |
| 428 | 1410 click in the frame. Why is this? */ |
| 438 | 1411 if (in_p |
| 1412 #if XtSpecificationRelease > 5 | |
| 863 | 1413 && needs_it != widget_with_focus |
| 428 | 1414 #endif |
| 1415 ) | |
| 1416 { | |
| 863 | 1417 lw_set_keyboard_focus (FRAME_X_SHELL_WIDGET (f), needs_it); |
| 428 | 1418 } |
| 450 | 1419 |
| 863 | 1420 /* If we are focusing on a native widget then record and exit. */ |
| 1421 if (needs_it != FRAME_X_TEXT_WIDGET (f)) { | |
| 1422 widget_with_focus = needs_it; | |
| 1423 return; | |
| 1424 } | |
| 1425 | |
| 450 | 1426 /* We have the focus now. See comment in |
| 1427 emacs_Xt_handle_widget_losing_focus (). */ | |
| 1428 if (in_p) | |
| 1429 widget_with_focus = NULL; | |
| 1430 | |
| 428 | 1431 /* do the generic event-stream stuff. */ |
| 1432 { | |
| 1433 Lisp_Object frm; | |
| 1434 Lisp_Object conser; | |
| 1435 struct gcpro gcpro1; | |
| 1436 | |
| 793 | 1437 frm = wrap_frame (f); |
| 428 | 1438 conser = Fcons (frm, Fcons (FRAME_DEVICE (f), in_p ? Qt : Qnil)); |
| 1439 GCPRO1 (conser); | |
| 1440 emacs_handle_focus_change_preliminary (conser); | |
| 1441 enqueue_magic_eval_event (emacs_handle_focus_change_final, | |
| 1442 conser); | |
| 1443 UNGCPRO; | |
| 1444 } | |
| 1445 } | |
| 1446 | |
| 863 | 1447 /* Create a synthetic X focus event. */ |
| 1111 | 1448 void emacs_Xt_enqueue_focus_event (Widget wants_it, Lisp_Object frame, |
| 1449 int in_p); | |
| 863 | 1450 void |
| 1111 | 1451 emacs_Xt_enqueue_focus_event (Widget wants_it, Lisp_Object frame, int in_p) |
| 863 | 1452 { |
| 1453 Lisp_Object emacs_event = Fmake_event (Qnil, Qnil); | |
| 1454 Lisp_Event *ev = XEVENT (emacs_event); | |
| 960 | 1455 XEvent *x_event; |
| 1456 | |
| 1457 XSET_EVENT_TYPE (emacs_event, magic_event); | |
| 1204 | 1458 x_event = &EVENT_MAGIC_X_EVENT (ev); |
| 863 | 1459 |
| 1460 x_event->type = in_p ? FocusIn : FocusOut; | |
| 1461 x_event->xfocus.window = XtWindow (wants_it); | |
| 1462 | |
| 960 | 1463 SET_EVENT_CHANNEL (ev, frame); |
| 1204 | 1464 |
| 1465 enqueue_dispatch_event (emacs_event); | |
| 863 | 1466 } |
| 1467 | |
| 450 | 1468 /* The idea here is that when a widget glyph gets unmapped we don't |
| 1469 want the focus to stay with it if it has focus - because it may | |
| 863 | 1470 well just get deleted next and then we have lost the focus until the |
| 450 | 1471 user does something. So handle_focus_event_1 records the widget |
| 1472 with keyboard focus when FocusOut is processed, and then, when a | |
| 1473 widget gets unmapped, it calls this function to restore focus if | |
| 1474 appropriate. */ | |
| 853 | 1475 void emacs_Xt_handle_widget_losing_focus (struct frame *f, Widget losing_widget); |
| 450 | 1476 void |
| 853 | 1477 emacs_Xt_handle_widget_losing_focus (struct frame *f, Widget losing_widget) |
| 450 | 1478 { |
| 1479 if (losing_widget == widget_with_focus) | |
| 1480 { | |
| 1481 handle_focus_event_1 (f, 1); | |
| 1482 } | |
| 1483 } | |
| 1484 | |
| 428 | 1485 /* This is called from the external-widget code */ |
| 1486 | |
| 1487 void emacs_Xt_handle_focus_event (XEvent *event); | |
| 1488 void | |
| 1489 emacs_Xt_handle_focus_event (XEvent *event) | |
| 1490 { | |
| 1491 struct device *d = get_device_from_display (event->xany.display); | |
| 1492 struct frame *f; | |
| 1493 | |
| 1494 if (DEVICE_X_BEING_DELETED (d)) | |
| 1495 return; | |
| 1496 | |
| 1497 /* | |
| 1498 * It's curious that we're using x_any_window_to_frame() instead | |
| 1499 * of x_window_to_frame(). I don't know what the impact of this is. | |
| 1500 */ | |
| 1501 f = x_any_window_to_frame (d, event->xfocus.window); | |
| 1502 if (!f) | |
| 1503 /* focus events are sometimes generated just before | |
| 1504 a frame is destroyed. */ | |
| 1505 return; | |
| 1506 handle_focus_event_1 (f, event->type == FocusIn); | |
| 1507 } | |
| 1508 | |
| 1509 /* both MapNotify and VisibilityNotify can cause this | |
| 1510 JV is_visible has the same semantics as f->visible*/ | |
| 1511 static void | |
| 1512 change_frame_visibility (struct frame *f, int is_visible) | |
| 1513 { | |
| 793 | 1514 Lisp_Object frame = wrap_frame (f); |
| 1515 | |
| 428 | 1516 |
| 1517 if (!FRAME_VISIBLE_P (f) && is_visible) | |
| 1518 { | |
| 1519 FRAME_VISIBLE_P (f) = is_visible; | |
| 872 | 1520 /* [[ This improves the double flicker when uniconifying a frame |
| 428 | 1521 some. A lot of it is not showing a buffer which has changed |
| 1522 while the frame was iconified. To fix it further requires | |
| 872 | 1523 the good 'ol double redisplay structure. ]] -- comment is |
| 1524 invalid, obviously predates 19.12, when the double redisplay | |
| 1525 structure (i.e. current + desired) was put back in. --ben */ | |
| 428 | 1526 MARK_FRAME_WINDOWS_STRUCTURE_CHANGED (f); |
| 1527 va_run_hook_with_args (Qmap_frame_hook, 1, frame); | |
| 1528 } | |
| 1529 else if (FRAME_VISIBLE_P (f) && !is_visible) | |
| 1530 { | |
| 1531 FRAME_VISIBLE_P (f) = 0; | |
| 1532 va_run_hook_with_args (Qunmap_frame_hook, 1, frame); | |
| 1533 } | |
| 1534 else if (FRAME_VISIBLE_P (f) * is_visible < 0) | |
| 1535 { | |
| 1536 FRAME_VISIBLE_P(f) = - FRAME_VISIBLE_P(f); | |
| 1537 if (FRAME_REPAINT_P(f)) | |
| 1538 MARK_FRAME_WINDOWS_STRUCTURE_CHANGED (f); | |
| 1539 va_run_hook_with_args (Qmap_frame_hook, 1, frame); | |
| 1540 } | |
| 1541 } | |
| 1542 | |
| 1543 static void | |
| 593 | 1544 update_frame_iconify_status (struct frame *f) |
| 1545 { | |
| 1546 f->iconified = (x_frame_window_state (f) == IconicState); | |
| 1547 } | |
| 1548 | |
| 1549 static void | |
| 428 | 1550 handle_map_event (struct frame *f, XEvent *event) |
| 1551 { | |
| 593 | 1552 |
| 1553 /* It seems that, given the multiplicity of window managers and X | |
| 1554 implementations, plus the fact that X was designed without | |
| 1555 window managers or icons in mind and this was then grafted on | |
| 1556 with about the skill of a drunk freshman med student attempting | |
| 1557 surgery with a rusty razor blade, we cannot treat any off | |
| 1558 MapNotify/UnmapNotify/VisibilityNotify as more than vague hints | |
| 1559 as to the actual situation. | |
| 1560 | |
| 1561 So we should just query the actual status. Unfortunately, things | |
| 1562 are worse because (a) there aren't obvious ways to query some | |
| 1563 of these values (e.g. "totally visible"), and (b) there may be | |
| 1564 race conditions (see below). | |
| 1565 | |
| 638 | 1566 However, according to the ICCCM, there's a specific way to |
| 593 | 1567 ask the window manager whether the state is (a) visible, |
| 1568 (b) iconic, (c) withdrawn. It must be one of these three. | |
| 1569 We already use this call to check for the iconified state. | |
| 1570 I'd suggest we do the same for visible (i.e. NormalState), | |
| 1571 and scrap most of the nasty code below. | |
| 1572 | |
| 1573 --ben | |
| 1574 */ | |
| 1575 | |
| 1576 update_frame_iconify_status (f); | |
| 1577 | |
| 1578 /* #### Ben suggests rewriting the code below using | |
| 1579 x_frame_window_state (f). */ | |
| 1580 | |
| 428 | 1581 if (event->type == MapNotify) |
| 1582 { | |
| 1583 XWindowAttributes xwa; | |
| 1584 | |
| 1585 /* Bleagh!!!!!! Apparently some window managers (e.g. MWM) | |
| 1586 send synthetic MapNotify events when a window is first | |
| 1587 created, EVEN IF IT'S CREATED ICONIFIED OR INVISIBLE. | |
| 1588 Or something like that. We initially tried a different | |
| 1589 solution below, but that ran into a different window- | |
| 1590 manager bug. | |
| 1591 | |
| 1592 It seems that the only reliable way is to treat a | |
| 1593 MapNotify event as a "hint" that the window might or | |
| 1594 might not be visible, and check explicitly. */ | |
| 1595 | |
| 1596 XGetWindowAttributes (event->xany.display, event->xmap.window, | |
| 1597 &xwa); | |
| 1598 if (xwa.map_state != IsViewable) | |
| 593 | 1599 return; |
| 428 | 1600 |
| 1601 FRAME_X_TOTALLY_VISIBLE_P (f) = 1; | |
| 1602 #if 0 | |
| 1603 /* Bleagh again!!!! We initially tried the following hack | |
| 1604 around the MWM problem, but it turns out that TWM | |
| 1605 has a race condition when you un-iconify, where it maps | |
| 1606 the window and then tells the server that the window | |
| 1607 is un-iconified. Usually, XEmacs wakes up between | |
| 1608 those two occurrences, and thus thinks that un-iconified | |
| 1609 windows are still iconified. | |
| 1610 | |
| 1611 Ah, the joys of X. */ | |
| 1612 | |
| 1613 /* By Emacs definition, a frame that is iconified is not | |
| 1614 visible. Marking a frame as visible will automatically cause | |
| 1615 frame-iconified-p to return nil, regardless of whether the | |
| 1616 frame is actually iconified. Therefore, we have to ignore | |
| 1617 MapNotify events on iconified frames. (It's not obvious | |
| 1618 to me why these are being sent, but it happens at startup | |
| 1619 with frames that are initially iconified; perhaps they are | |
| 1620 synthetic MapNotify events coming from the window manager.) | |
| 1621 Note that `frame-iconified-p' queries the server | |
| 1622 to determine whether the frame is currently iconified, | |
| 1623 rather than consulting some internal (and likely | |
| 1624 inaccurate) state flag. Therefore, ignoring the MapNotify | |
| 1625 is correct. */ | |
| 793 | 1626 if (!FRAME_VISIBLE_P (f) && NILP (Fframe_iconified_p (wrap_frame (f)))) |
| 428 | 1627 #endif /* 0 */ |
| 1628 change_frame_visibility (f, 1); | |
| 1629 } | |
| 1630 else | |
| 1631 { | |
| 1632 FRAME_X_TOTALLY_VISIBLE_P (f) = 0; | |
| 1633 change_frame_visibility (f, 0); | |
| 1634 } | |
| 1635 } | |
| 1636 | |
| 1637 static void | |
| 1638 handle_client_message (struct frame *f, XEvent *event) | |
| 1639 { | |
| 1640 struct device *d = XDEVICE (FRAME_DEVICE (f)); | |
| 793 | 1641 Lisp_Object frame = wrap_frame (f); |
| 428 | 1642 |
| 1643 if (event->xclient.message_type == DEVICE_XATOM_WM_PROTOCOLS (d) && | |
| 1644 (Atom) (event->xclient.data.l[0]) == DEVICE_XATOM_WM_DELETE_WINDOW (d)) | |
| 1645 { | |
| 1646 /* WM_DELETE_WINDOW is a misc-user event, but other ClientMessages, | |
| 1647 such as WM_TAKE_FOCUS, are eval events. That's because delete-window | |
| 1648 was probably executed with a mouse click, while the others could | |
| 1649 have been sent as a result of mouse motion or some other implicit | |
| 1650 action. (Call this a "heuristic"...) The reason for caring about | |
| 1651 this is so that clicking on the close-box will make emacs prompt | |
| 1652 using a dialog box instead of the minibuffer if there are unsaved | |
| 1653 buffers. | |
| 1654 */ | |
| 1655 enqueue_misc_user_event (frame, Qeval, | |
| 1656 list3 (Qdelete_frame, frame, Qt)); | |
| 1657 } | |
| 1658 else if (event->xclient.message_type == DEVICE_XATOM_WM_PROTOCOLS (d) && | |
| 1659 (Atom) event->xclient.data.l[0] == DEVICE_XATOM_WM_TAKE_FOCUS (d)) | |
| 1660 { | |
| 1661 handle_focus_event_1 (f, 1); | |
| 1662 #if 0 | |
| 1663 /* If there is a dialog box up, focus on it. | |
| 1664 | |
| 1665 #### Actually, we're raising it too, which is wrong. We should | |
| 1666 #### just focus on it, but lwlib doesn't currently give us an | |
| 1667 #### easy way to do that. This should be fixed. | |
| 1668 */ | |
| 1669 unsigned long take_focus_timestamp = event->xclient.data.l[1]; | |
| 1670 Widget widget = lw_raise_all_pop_up_widgets (); | |
| 1671 if (widget) | |
| 1672 { | |
| 1673 /* kludge: raise_all returns bottommost widget, but we really | |
| 1674 want the topmost. So just raise it for now. */ | |
| 1675 XMapRaised (XtDisplay (widget), XtWindow (widget)); | |
| 1676 /* Grab the focus with the timestamp of the TAKE_FOCUS. */ | |
| 1677 XSetInputFocus (XtDisplay (widget), XtWindow (widget), | |
| 1678 RevertToParent, take_focus_timestamp); | |
| 1679 } | |
| 1680 #endif | |
| 1681 } | |
| 1682 } | |
| 1683 | |
| 448 | 1684 /* #### I'm struggling to understand how the X event loop really works. |
| 1685 Here is the problem: | |
| 1686 | |
| 1687 When widgets get mapped / changed etc the actual display updates | |
| 1688 are done asynchronously via X events being processed - this | |
| 1689 normally happens when XtAppProcessEvent() gets called. However, if | |
| 1690 we are executing lisp code or even doing redisplay we won't | |
| 1691 necessarily process X events for a very long time. This has the | |
| 1692 effect of widgets only getting updated when XEmacs only goes into | |
| 1693 idle, or some other event causes processing of the X event queue. | |
| 1694 | |
| 1695 XtAppProcessEvent can get called from the following places: | |
| 1696 | |
| 1697 emacs_Xt_next_event () - this is normal event processing, almost | |
| 1698 any non-X event will take precedence and this means that we | |
| 1699 cannot rely on it to do the right thing at the right time for | |
| 1700 widget display. | |
| 1701 | |
| 1204 | 1702 emacs_Xt_drain_queue () - this happens when SIGIO gets tripped, |
| 1703 processing the event queue allows C-g to be checked for. It gets | |
| 1704 called from emacs_Xt_event_pending_p (). #### Update this comment. | |
| 448 | 1705 |
| 1706 In order to solve this I have tried introducing a list primitive - | |
| 1707 dispatch-non-command-events - which forces processing of X events | |
| 1708 related to display. Unfortunately this has a number of problems, | |
| 1709 one is that it is possible for event_stream_event_pending_p to | |
| 1710 block for ever if there isn't actually an event. I guess this can | |
| 1711 happen if we drop the synthetic event for reason. It also relies on | |
| 1712 SIGIO processing which makes things rather fragile. | |
| 1713 | |
| 1714 People have seen behaviour whereby XEmacs blocks until you move the | |
| 1715 mouse. This seems to indicate that dispatch-non-command-events is | |
| 1716 blocking. It may be that in a SIGIO world forcing SIGIO processing | |
| 1717 does the wrong thing. | |
| 1718 */ | |
| 428 | 1719 static void |
| 853 | 1720 emacs_Xt_force_event_pending (struct frame *f) |
| 442 | 1721 { |
| 1722 XEvent event; | |
| 1723 | |
| 853 | 1724 Display *dpy = DEVICE_X_DISPLAY (XDEVICE (FRAME_DEVICE (f))); |
| 442 | 1725 event.xclient.type = ClientMessage; |
| 1726 event.xclient.display = dpy; | |
| 1727 event.xclient.message_type = XInternAtom (dpy, "BumpQueue", False); | |
| 1728 event.xclient.format = 32; | |
| 1729 event.xclient.window = 0; | |
| 1730 | |
| 1731 /* Send the drop message */ | |
| 1732 XSendEvent(dpy, XtWindow (FRAME_X_SHELL_WIDGET (f)), | |
| 1733 True, NoEventMask, &event); | |
| 448 | 1734 /* We rely on SIGIO and friends to realise we have generated an |
| 1735 event. */ | |
| 442 | 1736 } |
| 1737 | |
| 1738 static void | |
| 788 | 1739 emacs_Xt_format_magic_event (Lisp_Event *event, Lisp_Object pstream) |
| 1740 { | |
| 1741 Lisp_Object console = CDFW_CONSOLE (EVENT_CHANNEL (event)); | |
| 1742 if (CONSOLE_X_P (XCONSOLE (console))) | |
|
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1743 write_ascstring |
| 1204 | 1744 (pstream, x_event_name ((EVENT_MAGIC_X_EVENT (event)).type)); |
| 788 | 1745 } |
| 1746 | |
| 1747 static int | |
| 1748 emacs_Xt_compare_magic_event (Lisp_Event *e1, Lisp_Event *e2) | |
| 1749 { | |
| 1750 if (CONSOLE_X_P (XCONSOLE (CDFW_CONSOLE (EVENT_CHANNEL (e1)))) && | |
| 1751 CONSOLE_X_P (XCONSOLE (CDFW_CONSOLE (EVENT_CHANNEL (e2))))) | |
| 1204 | 1752 return ((EVENT_MAGIC_X_EVENT (e1)).xany.serial == |
| 1753 (EVENT_MAGIC_X_EVENT (e2)).xany.serial); | |
| 788 | 1754 if (CONSOLE_X_P (XCONSOLE (CDFW_CONSOLE (EVENT_CHANNEL (e1)))) || |
| 1755 CONSOLE_X_P (XCONSOLE (CDFW_CONSOLE (EVENT_CHANNEL (e2))))) | |
| 1756 return 0; | |
| 1757 return 1; | |
| 1758 } | |
| 1759 | |
| 1760 static Hashcode | |
| 1761 emacs_Xt_hash_magic_event (Lisp_Event *e) | |
| 1762 { | |
| 1763 Lisp_Object console = CDFW_CONSOLE (EVENT_CHANNEL (e)); | |
| 1764 if (CONSOLE_X_P (XCONSOLE (console))) | |
| 1204 | 1765 return (EVENT_MAGIC_X_EVENT (e)).xany.serial; |
| 788 | 1766 return 0; |
| 1767 } | |
| 1768 | |
| 1769 static void | |
| 440 | 1770 emacs_Xt_handle_magic_event (Lisp_Event *emacs_event) |
| 428 | 1771 { |
| 1772 /* This function can GC */ | |
| 1204 | 1773 XEvent *event = &EVENT_MAGIC_X_EVENT (emacs_event); |
| 428 | 1774 struct frame *f = XFRAME (EVENT_CHANNEL (emacs_event)); |
| 1775 | |
| 1776 if (!FRAME_LIVE_P (f) || DEVICE_X_BEING_DELETED (XDEVICE (FRAME_DEVICE (f)))) | |
| 1777 return; | |
| 1778 | |
| 1779 switch (event->type) | |
| 1780 { | |
| 1781 case SelectionRequest: | |
| 1782 x_handle_selection_request (&event->xselectionrequest); | |
| 1783 break; | |
| 934 | 1784 |
| 428 | 1785 case SelectionClear: |
| 1786 x_handle_selection_clear (&event->xselectionclear); | |
| 1787 break; | |
| 934 | 1788 |
| 428 | 1789 case SelectionNotify: |
| 1790 x_handle_selection_notify (&event->xselection); | |
| 1791 break; | |
| 934 | 1792 |
| 428 | 1793 case PropertyNotify: |
| 1794 x_handle_property_notify (&event->xproperty); | |
| 1795 break; | |
| 934 | 1796 |
| 428 | 1797 case Expose: |
| 1798 if (!check_for_ignored_expose (f, event->xexpose.x, event->xexpose.y, | |
| 1318 | 1799 event->xexpose.width, |
| 1800 event->xexpose.height) | |
| 428 | 1801 && |
| 1802 !find_matching_subwindow (f, event->xexpose.x, event->xexpose.y, | |
| 1803 event->xexpose.width, event->xexpose.height)) | |
| 1318 | 1804 redisplay_redraw_exposed_area (f, event->xexpose.x, event->xexpose.y, |
| 1805 event->xexpose.width, | |
| 1806 event->xexpose.height); | |
| 428 | 1807 break; |
| 1808 | |
| 1809 case GraphicsExpose: /* This occurs when an XCopyArea's source area was | |
| 1810 obscured or not available. */ | |
| 1318 | 1811 redisplay_redraw_exposed_area (f, event->xexpose.x, event->xexpose.y, |
| 1812 event->xexpose.width, | |
| 1813 event->xexpose.height); | |
| 428 | 1814 break; |
| 1815 | |
| 1816 case MapNotify: | |
| 1817 case UnmapNotify: | |
| 1818 handle_map_event (f, event); | |
| 1819 break; | |
| 1820 | |
| 1821 case EnterNotify: | |
| 1822 if (event->xcrossing.detail != NotifyInferior) | |
| 1823 { | |
| 793 | 1824 Lisp_Object frame = wrap_frame (f); |
| 1825 | |
| 428 | 1826 /* FRAME_X_MOUSE_P (f) = 1; */ |
| 1827 va_run_hook_with_args (Qmouse_enter_frame_hook, 1, frame); | |
| 1828 } | |
| 1829 break; | |
| 1830 | |
| 1831 case LeaveNotify: | |
| 1832 if (event->xcrossing.detail != NotifyInferior) | |
| 1833 { | |
| 793 | 1834 Lisp_Object frame = wrap_frame (f); |
| 1835 | |
| 428 | 1836 /* FRAME_X_MOUSE_P (f) = 0; */ |
| 1837 va_run_hook_with_args (Qmouse_leave_frame_hook, 1, frame); | |
| 1838 } | |
| 1839 break; | |
| 1840 | |
| 1841 case FocusIn: | |
| 1842 case FocusOut: | |
| 1843 | |
| 1844 #ifdef EXTERNAL_WIDGET | |
| 1845 /* External widget lossage: Ben said: | |
| 1846 YUCK. The only way to make focus changes work properly is to | |
| 1847 completely ignore all FocusIn/FocusOut events and depend only | |
| 1848 on notifications from the ExternalClient widget. */ | |
| 1849 if (FRAME_X_EXTERNAL_WINDOW_P (f)) | |
| 1850 break; | |
| 1851 #endif | |
| 863 | 1852 handle_focus_event_2 (event->xfocus.window, f, event->type == FocusIn); |
| 428 | 1853 break; |
| 1854 | |
| 1855 case ClientMessage: | |
| 1856 handle_client_message (f, event); | |
| 1857 break; | |
| 1858 | |
| 1859 case VisibilityNotify: /* window visibility has changed */ | |
| 1860 if (event->xvisibility.window == XtWindow (FRAME_X_SHELL_WIDGET (f))) | |
| 1861 { | |
| 593 | 1862 /* See comment in handle_map_event */ |
| 1863 update_frame_iconify_status (f); | |
| 1864 | |
| 1865 /* #### Ben suggests rewriting the code below using | |
| 1866 x_frame_window_state (f). */ | |
| 428 | 1867 FRAME_X_TOTALLY_VISIBLE_P (f) = |
| 1868 (event->xvisibility.state == VisibilityUnobscured); | |
| 1869 /* Note that the fvwm pager only sends VisibilityNotify when | |
| 1870 changing pages. Is this all we need to do ? JV */ | |
| 1871 /* Nope. We must at least trigger a redisplay here. | |
| 1872 Since this case seems similar to MapNotify, I've | |
| 1873 factored out some code to change_frame_visibility(). | |
| 1874 This triggers the necessary redisplay and runs | |
| 1875 (un)map-frame-hook. - dkindred@cs.cmu.edu */ | |
| 1876 /* Changed it again to support the tristate visibility flag */ | |
| 1877 change_frame_visibility (f, (event->xvisibility.state | |
| 1878 != VisibilityFullyObscured) ? 1 : -1); | |
| 1879 } | |
| 1880 break; | |
| 1881 | |
| 1882 case ConfigureNotify: | |
|
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1883 { |
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1884 XEvent xev; |
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1885 |
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1886 /* Let's eat all events of that type to avoid useless |
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1887 reconfigurations. */ |
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1888 while (XCheckTypedWindowEvent |
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1889 (DEVICE_X_DISPLAY (XDEVICE (FRAME_DEVICE (f))), |
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1890 XtWindow (FRAME_X_TEXT_WIDGET (f)), |
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1891 ConfigureNotify, |
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1892 &xev) |
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1893 == True); |
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1894 } |
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1895 /* #### NOTE: in fact, the frame faces didn't really change, but if some |
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1896 #### of them have their background-placement property set to |
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1897 #### absolute, we need a redraw. This is semantically equivalent to |
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1898 #### changing the background pixmap. -- dvl */ |
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1899 x_get_frame_text_position (f); |
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1900 MARK_FRAME_FACES_CHANGED (f); |
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1901 |
| 428 | 1902 #ifdef HAVE_XIM |
| 1903 XIM_SetGeometry (f); | |
| 1904 #endif | |
| 1905 break; | |
| 1906 | |
| 442 | 1907 case CreateNotify: |
| 1908 break; | |
| 1909 | |
| 428 | 1910 default: |
| 1911 break; | |
| 1912 } | |
| 1913 } | |
| 1914 | |
| 1915 | |
| 1916 /************************************************************************/ | |
| 1917 /* timeout events */ | |
| 1918 /************************************************************************/ | |
| 1919 | |
| 1920 static int timeout_id_tick; | |
| 1921 | |
| 1922 /* Xt interval id's might not fit into an int (they're pointers, as it | |
| 1923 happens), so we need to provide a conversion list. */ | |
| 1924 | |
| 1925 static struct Xt_timeout | |
| 1926 { | |
| 1927 int id; | |
| 1928 XtIntervalId interval_id; | |
| 1929 struct Xt_timeout *next; | |
| 1930 } *pending_timeouts, *completed_timeouts; | |
| 1931 | |
| 1932 static struct Xt_timeout_blocktype | |
| 1933 { | |
| 1934 Blocktype_declare (struct Xt_timeout); | |
| 1935 } *the_Xt_timeout_blocktype; | |
| 1936 | |
| 1937 /* called by XtAppNextEvent() */ | |
| 1938 static void | |
| 2286 | 1939 Xt_timeout_callback (XtPointer closure, XtIntervalId *UNUSED (id)) |
| 428 | 1940 { |
| 1941 struct Xt_timeout *timeout = (struct Xt_timeout *) closure; | |
| 1942 struct Xt_timeout *t2 = pending_timeouts; | |
| 1943 /* Remove this one from the list of pending timeouts */ | |
| 1944 if (t2 == timeout) | |
| 1945 pending_timeouts = pending_timeouts->next; | |
| 1946 else | |
| 1947 { | |
| 1948 while (t2->next && t2->next != timeout) t2 = t2->next; | |
| 1949 assert (t2->next); | |
| 1950 t2->next = t2->next->next; | |
| 1951 } | |
| 1952 /* Add this one to the list of completed timeouts */ | |
| 1953 timeout->next = completed_timeouts; | |
| 1954 completed_timeouts = timeout; | |
| 1955 } | |
| 1956 | |
| 1957 static int | |
| 1958 emacs_Xt_add_timeout (EMACS_TIME thyme) | |
| 1959 { | |
| 1960 struct Xt_timeout *timeout = Blocktype_alloc (the_Xt_timeout_blocktype); | |
| 1961 EMACS_TIME current_time; | |
| 1962 int milliseconds; | |
| 1963 | |
| 1964 timeout->id = timeout_id_tick++; | |
| 1965 timeout->next = pending_timeouts; | |
| 1966 pending_timeouts = timeout; | |
| 1967 EMACS_GET_TIME (current_time); | |
| 1968 EMACS_SUB_TIME (thyme, thyme, current_time); | |
| 1969 milliseconds = EMACS_SECS (thyme) * 1000 + | |
| 1970 EMACS_USECS (thyme) / 1000; | |
| 1971 if (milliseconds < 1) | |
| 1972 milliseconds = 1; | |
| 1973 timeout->interval_id = XtAppAddTimeOut (Xt_app_con, milliseconds, | |
| 1974 Xt_timeout_callback, | |
| 1975 (XtPointer) timeout); | |
| 1976 return timeout->id; | |
| 1977 } | |
| 1978 | |
| 1979 static void | |
| 1980 emacs_Xt_remove_timeout (int id) | |
| 1981 { | |
| 1982 struct Xt_timeout *timeout, *t2; | |
| 1983 | |
| 1984 timeout = NULL; | |
| 1985 | |
| 1986 /* Find the timeout on the list of pending ones, if it's still there. */ | |
| 1987 if (pending_timeouts) | |
| 1988 { | |
| 1989 if (id == pending_timeouts->id) | |
| 1990 { | |
| 1991 timeout = pending_timeouts; | |
| 1992 pending_timeouts = pending_timeouts->next; | |
| 1993 } | |
| 1994 else | |
| 1995 { | |
| 1996 t2 = pending_timeouts; | |
| 1997 while (t2->next && t2->next->id != id) t2 = t2->next; | |
| 1998 if ( t2->next) /*found it */ | |
| 1999 { | |
| 2000 timeout = t2->next; | |
| 2001 t2->next = t2->next->next; | |
| 2002 } | |
| 2003 } | |
| 2004 /* if it was pending, we have removed it from the list */ | |
| 2005 if (timeout) | |
| 2006 XtRemoveTimeOut (timeout->interval_id); | |
| 2007 } | |
| 2008 | |
| 2009 /* It could be that the Xt call back was already called but we didn't convert | |
| 2010 into an Emacs event yet */ | |
| 2011 if (!timeout && completed_timeouts) | |
| 2012 { | |
| 2013 /* Code duplication! */ | |
| 2014 if (id == completed_timeouts->id) | |
| 2015 { | |
| 2016 timeout = completed_timeouts; | |
| 2017 completed_timeouts = completed_timeouts->next; | |
| 2018 } | |
| 2019 else | |
| 2020 { | |
| 2021 t2 = completed_timeouts; | |
| 2022 while (t2->next && t2->next->id != id) t2 = t2->next; | |
| 2023 if ( t2->next) /*found it */ | |
| 2024 { | |
| 2025 timeout = t2->next; | |
| 2026 t2->next = t2->next->next; | |
| 2027 } | |
| 2028 } | |
| 2029 } | |
| 2030 | |
| 2031 /* If we found the thing on the lists of timeouts, | |
| 2032 and removed it, deallocate | |
| 2033 */ | |
| 2034 if (timeout) | |
| 2035 Blocktype_free (the_Xt_timeout_blocktype, timeout); | |
| 2036 } | |
| 2037 | |
| 2038 static void | |
| 440 | 2039 Xt_timeout_to_emacs_event (Lisp_Event *emacs_event) |
| 428 | 2040 { |
| 2041 struct Xt_timeout *timeout = completed_timeouts; | |
| 2042 assert (timeout); | |
| 2043 completed_timeouts = completed_timeouts->next; | |
| 934 | 2044 /* timeout events have nil as channel */ |
| 1204 | 2045 set_event_type (emacs_event, timeout_event); |
| 934 | 2046 SET_EVENT_TIMESTAMP_ZERO (emacs_event); /* #### wrong!! */ |
| 1204 | 2047 SET_EVENT_TIMEOUT_INTERVAL_ID (emacs_event, timeout->id); |
| 2048 SET_EVENT_TIMEOUT_FUNCTION (emacs_event, Qnil); | |
| 2049 SET_EVENT_TIMEOUT_OBJECT (emacs_event, Qnil); | |
| 428 | 2050 Blocktype_free (the_Xt_timeout_blocktype, timeout); |
| 2051 } | |
| 2052 | |
| 2053 | |
| 2054 /************************************************************************/ | |
| 2055 /* process and tty events */ | |
| 2056 /************************************************************************/ | |
| 2057 | |
| 2058 struct what_is_ready_closure | |
| 2059 { | |
| 2060 int fd; | |
| 2061 Lisp_Object what; | |
| 2062 XtInputId id; | |
| 2063 }; | |
| 2064 | |
| 2065 static Lisp_Object *filedesc_with_input; | |
| 2066 static struct what_is_ready_closure **filedesc_to_what_closure; | |
| 2067 | |
| 2068 static void | |
| 2069 init_what_input_once (void) | |
| 2070 { | |
| 2071 int i; | |
| 2072 | |
| 2073 filedesc_with_input = xnew_array (Lisp_Object, MAXDESC); | |
| 2074 filedesc_to_what_closure = | |
| 2075 xnew_array (struct what_is_ready_closure *, MAXDESC); | |
| 2076 | |
| 2077 for (i = 0; i < MAXDESC; i++) | |
| 2078 { | |
| 2079 filedesc_to_what_closure[i] = 0; | |
| 2080 filedesc_with_input[i] = Qnil; | |
| 2081 } | |
| 2082 | |
| 2083 process_events_occurred = 0; | |
| 2084 tty_events_occurred = 0; | |
| 2085 } | |
| 2086 | |
| 2087 static void | |
| 2088 mark_what_as_being_ready (struct what_is_ready_closure *closure) | |
| 2089 { | |
| 2090 if (NILP (filedesc_with_input[closure->fd])) | |
| 2091 { | |
| 2092 SELECT_TYPE temp_mask; | |
| 2093 FD_ZERO (&temp_mask); | |
| 2094 FD_SET (closure->fd, &temp_mask); | |
| 2095 /* Check to make sure there's *really* input available. | |
| 2096 Sometimes things seem to get confused and this gets called | |
| 2097 for the tty fd when there's really only input available | |
| 2098 on some process's fd. (It will subsequently get called | |
| 2099 for that process's fd, so returning without setting any | |
| 2100 flags will take care of it.) To see the problem, uncomment | |
| 2101 the stderr_out below, turn NORMAL_QUIT_CHECK_TIMEOUT_MSECS | |
| 2102 down to 25, do sh -c 'xemacs -nw -q -f shell 2>/tmp/log' | |
| 2103 and press return repeatedly. (Seen under AIX & Linux.) | |
| 2104 -dkindred@cs.cmu.edu */ | |
| 2105 if (!poll_fds_for_input (temp_mask)) | |
| 2106 { | |
| 2107 #if 0 | |
| 2108 stderr_out ("mark_what_as_being_ready: no input available (fd=%d)\n", | |
| 2109 closure->fd); | |
| 2110 #endif | |
| 2111 return; | |
| 2112 } | |
| 2113 filedesc_with_input[closure->fd] = closure->what; | |
| 2114 if (PROCESSP (closure->what)) | |
| 2115 /* Don't increment this if the current process is already marked | |
| 2116 * as having input. */ | |
| 2117 process_events_occurred++; | |
| 2118 else | |
| 2119 tty_events_occurred++; | |
| 2120 } | |
| 2121 } | |
| 2122 | |
| 2123 static void | |
| 2286 | 2124 Xt_what_callback (void *closure, int *UNUSED (source), XtInputId *UNUSED (id)) |
| 428 | 2125 { |
| 2126 /* If closure is 0, then we got a fake event from a signal handler. | |
| 2127 The only purpose of this is to make XtAppProcessEvent() stop | |
| 2128 blocking. */ | |
| 2129 if (closure) | |
| 2130 mark_what_as_being_ready ((struct what_is_ready_closure *) closure); | |
| 2131 else | |
| 2132 { | |
| 2133 fake_event_occurred++; | |
| 2134 drain_signal_event_pipe (); | |
| 2135 } | |
| 2136 } | |
| 2137 | |
| 2138 static void | |
| 2139 select_filedesc (int fd, Lisp_Object what) | |
| 2140 { | |
| 2141 struct what_is_ready_closure *closure; | |
| 2142 | |
| 2143 /* If somebody is trying to select something that's already selected | |
| 2144 for, then something went wrong. The generic routines ought to | |
| 2145 detect this and error before here. */ | |
| 2146 assert (!filedesc_to_what_closure[fd]); | |
| 2147 | |
| 2148 closure = xnew (struct what_is_ready_closure); | |
| 2149 closure->fd = fd; | |
| 2150 closure->what = what; | |
| 2151 closure->id = | |
| 2152 XtAppAddInput (Xt_app_con, fd, | |
| 2153 (XtPointer) (XtInputReadMask /* | XtInputExceptMask */), | |
| 2154 Xt_what_callback, closure); | |
| 2155 filedesc_to_what_closure[fd] = closure; | |
| 2156 } | |
| 2157 | |
| 2158 static void | |
| 2159 unselect_filedesc (int fd) | |
| 2160 { | |
| 2161 struct what_is_ready_closure *closure = filedesc_to_what_closure[fd]; | |
| 2162 | |
| 2163 assert (closure); | |
| 2164 if (!NILP (filedesc_with_input[fd])) | |
| 2165 { | |
| 2166 /* We are unselecting this process before we have drained the rest of | |
| 2167 the input from it, probably from status_notify() in the command loop. | |
| 2168 This can happen like so: | |
| 2169 | |
| 2170 - We are waiting in XtAppNextEvent() | |
| 2171 - Process generates output | |
| 2172 - Process is marked as being ready | |
| 2173 - Process dies, SIGCHLD gets generated before we return (!?) | |
| 2174 It could happen I guess. | |
| 2175 - sigchld_handler() marks process as dead | |
| 2176 - Somehow we end up getting a new KeyPress event on the queue | |
| 2177 at the same time (I'm really so sure how that happens but I'm | |
| 2178 not sure it can't either so let's assume it can...). | |
| 2179 - Key events have priority so we return that instead of the proc. | |
| 2180 - Before dispatching the lisp key event we call status_notify() | |
| 2181 - Which deselects the process that SIGCHLD marked as dead. | |
| 2182 | |
| 2183 Thus we never remove it from _with_input and turn it into a lisp | |
| 2184 event, so we need to do it here. But this does not mean that we're | |
| 2185 throwing away the last block of output - status_notify() has already | |
| 2186 taken care of running the proc filter or whatever. | |
| 2187 */ | |
| 2188 filedesc_with_input[fd] = Qnil; | |
| 2189 if (PROCESSP (closure->what)) | |
| 2190 { | |
| 2191 assert (process_events_occurred > 0); | |
| 2192 process_events_occurred--; | |
| 2193 } | |
| 2194 else | |
| 2195 { | |
| 2196 assert (tty_events_occurred > 0); | |
| 2197 tty_events_occurred--; | |
| 2198 } | |
| 2199 } | |
| 2200 XtRemoveInput (closure->id); | |
|
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Ben Wing <ben@xemacs.org>
parents:
4953
diff
changeset
|
2201 xfree (closure); |
| 428 | 2202 filedesc_to_what_closure[fd] = 0; |
| 2203 } | |
| 2204 | |
| 2205 static void | |
| 853 | 2206 emacs_Xt_select_process (Lisp_Process *process, int doin, int doerr) |
| 428 | 2207 { |
| 853 | 2208 Lisp_Object proc; |
| 2209 int infd, errfd; | |
| 2210 | |
| 2211 event_stream_unixoid_select_process (process, doin, doerr, &infd, &errfd); | |
| 2212 | |
| 2213 proc = wrap_process (process); | |
| 2214 if (doin) | |
| 2215 select_filedesc (infd, proc); | |
| 2216 if (doerr) | |
| 2217 select_filedesc (errfd, proc); | |
| 2218 } | |
| 2219 | |
| 2220 static void | |
| 2221 emacs_Xt_unselect_process (Lisp_Process *process, int doin, int doerr) | |
| 2222 { | |
| 2223 int infd, errfd; | |
| 2224 | |
| 2225 event_stream_unixoid_unselect_process (process, doin, doerr, &infd, &errfd); | |
| 2226 | |
| 2227 if (doin) | |
| 2228 unselect_filedesc (infd); | |
| 2229 if (doerr) | |
| 2230 unselect_filedesc (errfd); | |
| 428 | 2231 } |
| 2232 | |
| 2233 static void | |
| 853 | 2234 emacs_Xt_create_io_streams (void *inhandle, void *outhandle, |
| 2235 void *errhandle, Lisp_Object *instream, | |
| 2236 Lisp_Object *outstream, | |
| 2237 Lisp_Object *errstream, | |
| 2238 USID *in_usid, | |
| 2239 USID *err_usid, | |
| 2240 int flags) | |
| 428 | 2241 { |
| 853 | 2242 event_stream_unixoid_create_io_streams |
| 2243 (inhandle, outhandle, errhandle, instream, outstream, | |
| 2244 errstream, in_usid, err_usid, flags); | |
| 2245 if (*in_usid != USID_ERROR) | |
| 2246 *in_usid = USID_DONTHASH; | |
| 2247 if (*err_usid != USID_ERROR) | |
| 2248 *err_usid = USID_DONTHASH; | |
| 428 | 2249 } |
| 2250 | |
| 853 | 2251 static void |
| 2252 emacs_Xt_delete_io_streams (Lisp_Object instream, | |
| 2253 Lisp_Object outstream, | |
| 2254 Lisp_Object errstream, | |
| 2255 USID *in_usid, | |
| 2256 USID *err_usid) | |
| 428 | 2257 { |
| 853 | 2258 event_stream_unixoid_delete_io_streams |
| 2259 (instream, outstream, errstream, in_usid, err_usid); | |
| 2260 *in_usid = USID_DONTHASH; | |
| 2261 *err_usid = USID_DONTHASH; | |
| 428 | 2262 } |
| 2263 | |
| 2264 /* This is called from GC when a process object is about to be freed. | |
| 2265 If we've still got pointers to it in this file, we're gonna lose hard. | |
| 2266 */ | |
| 2267 void | |
| 2286 | 2268 debug_process_finalization (Lisp_Process *UNUSED (p)) |
| 428 | 2269 { |
| 2270 #if 0 /* #### */ | |
| 2271 int i; | |
| 853 | 2272 Lisp_Object instr, outstr, errstr; |
| 2273 | |
| 2274 get_process_streams (p, &instr, &outstr, &errstr); | |
| 428 | 2275 /* if it still has fds, then it hasn't been killed yet. */ |
| 2276 assert (NILP(instr)); | |
| 2277 assert (NILP(outstr)); | |
| 853 | 2278 assert (NILP(errstr)); |
| 428 | 2279 /* Better not still be in the "with input" table; we know it's got no fds. */ |
| 2280 for (i = 0; i < MAXDESC; i++) | |
| 2281 { | |
| 2282 Lisp_Object process = filedesc_fds_with_input [i]; | |
| 2283 assert (!PROCESSP (process) || XPROCESS (process) != p); | |
| 2284 } | |
| 2285 #endif | |
| 2286 } | |
| 2287 | |
| 2288 static void | |
| 440 | 2289 Xt_process_to_emacs_event (Lisp_Event *emacs_event) |
| 428 | 2290 { |
| 2291 int i; | |
| 2292 | |
| 2293 assert (process_events_occurred > 0); | |
| 438 | 2294 |
| 428 | 2295 for (i = 0; i < MAXDESC; i++) |
| 2296 { | |
| 438 | 2297 Lisp_Object process = filedesc_with_input[i]; |
| 428 | 2298 if (PROCESSP (process)) |
| 438 | 2299 { |
| 2300 filedesc_with_input[i] = Qnil; | |
| 2301 process_events_occurred--; | |
| 2302 /* process events have nil as channel */ | |
| 934 | 2303 set_event_type (emacs_event, process_event); |
| 2304 SET_EVENT_TIMESTAMP_ZERO (emacs_event); /* #### */ | |
| 1204 | 2305 SET_EVENT_PROCESS_PROCESS (emacs_event, process); |
| 438 | 2306 return; |
| 2307 } | |
| 428 | 2308 } |
| 2500 | 2309 ABORT (); |
| 428 | 2310 } |
| 2311 | |
| 2312 static void | |
| 2313 emacs_Xt_select_console (struct console *con) | |
| 2314 { | |
| 2315 Lisp_Object console; | |
| 2316 int infd; | |
| 2317 | |
| 2318 if (CONSOLE_X_P (con)) | |
| 2319 return; /* X consoles are automatically selected for when we | |
| 2320 initialize them in Xt */ | |
| 2321 infd = event_stream_unixoid_select_console (con); | |
| 793 | 2322 console = wrap_console (con); |
| 428 | 2323 select_filedesc (infd, console); |
| 2324 } | |
| 2325 | |
| 2326 static void | |
| 2327 emacs_Xt_unselect_console (struct console *con) | |
| 2328 { | |
| 2329 int infd; | |
| 2330 | |
| 2331 if (CONSOLE_X_P (con)) | |
| 2332 return; /* X consoles are automatically selected for when we | |
| 2333 initialize them in Xt */ | |
| 2334 infd = event_stream_unixoid_unselect_console (con); | |
| 2335 unselect_filedesc (infd); | |
| 2336 } | |
| 2337 | |
| 2338 /* read an event from a tty, if one is available. Returns non-zero | |
| 2339 if an event was available. Note that when this function is | |
| 2340 called, there should always be a tty marked as ready for input. | |
| 2341 However, the input condition might actually be EOF, so there | |
| 2342 may not really be any input available. (In this case, | |
| 2343 read_event_from_tty_or_stream_desc() will arrange for the TTY device | |
| 2344 to be deleted.) */ | |
| 2345 | |
| 2346 static int | |
| 440 | 2347 Xt_tty_to_emacs_event (Lisp_Event *emacs_event) |
| 428 | 2348 { |
| 2349 int i; | |
| 2350 | |
| 2351 assert (tty_events_occurred > 0); | |
| 2352 for (i = 0; i < MAXDESC; i++) | |
| 2353 { | |
| 2354 Lisp_Object console = filedesc_with_input[i]; | |
| 2355 if (CONSOLEP (console)) | |
| 2356 { | |
| 2357 assert (tty_events_occurred > 0); | |
| 2358 tty_events_occurred--; | |
| 2359 filedesc_with_input[i] = Qnil; | |
| 771 | 2360 if (read_event_from_tty_or_stream_desc (emacs_event, |
| 2361 XCONSOLE (console))) | |
| 428 | 2362 return 1; |
| 2363 } | |
| 2364 } | |
| 2365 | |
| 2366 return 0; | |
| 2367 } | |
| 2368 | |
| 2369 | |
| 2370 /************************************************************************/ | |
| 2371 /* debugging functions to decipher an event */ | |
| 2372 /************************************************************************/ | |
| 2373 | |
| 2374 #ifdef DEBUG_XEMACS | |
| 2375 #include "xintrinsicp.h" /* only describe_event() needs this */ | |
| 2376 #include <X11/Xproto.h> /* only describe_event() needs this */ | |
| 2377 | |
| 2378 static void | |
| 788 | 2379 describe_event_window (Window window, Display *display, Lisp_Object pstream) |
| 428 | 2380 { |
| 2381 struct frame *f; | |
| 2382 Widget w; | |
| 788 | 2383 write_fmt_string (pstream, " window: 0x%lx", (unsigned long) window); |
| 428 | 2384 w = XtWindowToWidget (display, window); |
| 2385 if (w) | |
| 788 | 2386 write_fmt_string (pstream, " %s", |
| 2387 w->core.widget_class->core_class.class_name); | |
| 428 | 2388 f = x_any_window_to_frame (get_device_from_display (display), window); |
| 2389 if (f) | |
| 788 | 2390 write_fmt_string_lisp (pstream, " \"%s\"", 1, f->name); |
| 2391 write_fmt_string (pstream, "\n"); | |
| 428 | 2392 } |
| 2393 | |
| 442 | 2394 static const char * |
| 428 | 2395 XEvent_mode_to_string (int mode) |
| 2396 { | |
| 2397 switch (mode) | |
| 2398 { | |
| 2399 case NotifyNormal: return "Normal"; | |
| 2400 case NotifyGrab: return "Grab"; | |
| 2401 case NotifyUngrab: return "Ungrab"; | |
| 2402 case NotifyWhileGrabbed: return "WhileGrabbed"; | |
| 2403 default: return "???"; | |
| 2404 } | |
| 2405 } | |
| 2406 | |
| 442 | 2407 static const char * |
| 428 | 2408 XEvent_detail_to_string (int detail) |
| 2409 { | |
| 2410 switch (detail) | |
| 2411 { | |
| 2412 case NotifyAncestor: return "Ancestor"; | |
| 2413 case NotifyInferior: return "Inferior"; | |
| 2414 case NotifyNonlinear: return "Nonlinear"; | |
| 2415 case NotifyNonlinearVirtual: return "NonlinearVirtual"; | |
| 2416 case NotifyPointer: return "Pointer"; | |
| 2417 case NotifyPointerRoot: return "PointerRoot"; | |
| 2418 case NotifyDetailNone: return "DetailNone"; | |
| 2419 default: return "???"; | |
| 2420 } | |
| 2421 } | |
| 2422 | |
| 442 | 2423 static const char * |
| 428 | 2424 XEvent_visibility_to_string (int state) |
| 2425 { | |
| 2426 switch (state) | |
| 2427 { | |
| 2428 case VisibilityFullyObscured: return "FullyObscured"; | |
| 2429 case VisibilityPartiallyObscured: return "PartiallyObscured"; | |
| 2430 case VisibilityUnobscured: return "Unobscured"; | |
| 2431 default: return "???"; | |
| 2432 } | |
| 2433 } | |
| 2434 | |
| 2435 static void | |
| 788 | 2436 describe_event (XEvent *event, Lisp_Object pstream) |
| 428 | 2437 { |
|
4952
19a72041c5ed
Mule-izing, various fixes related to char * arguments
Ben Wing <ben@xemacs.org>
parents:
4790
diff
changeset
|
2438 Ascbyte buf[100]; |
| 428 | 2439 struct device *d = get_device_from_display (event->xany.display); |
| 2440 | |
| 2441 sprintf (buf, "%s%s", x_event_name (event->type), | |
| 2442 event->xany.send_event ? " (send)" : ""); | |
| 788 | 2443 write_fmt_string (pstream, "%-30s", buf); |
| 428 | 2444 switch (event->type) |
| 2445 { | |
| 2446 case FocusIn: | |
| 2447 case FocusOut: | |
| 2448 { | |
| 2449 XFocusChangeEvent *ev = &event->xfocus; | |
| 788 | 2450 describe_event_window (ev->window, ev->display, pstream); |
| 2451 write_fmt_string (pstream, " mode: %s\n", | |
| 2452 XEvent_mode_to_string (ev->mode)); | |
| 2453 write_fmt_string (pstream, " detail: %s\n", | |
| 2454 XEvent_detail_to_string (ev->detail)); | |
| 428 | 2455 break; |
| 2456 } | |
| 2457 | |
| 2458 case KeyPress: | |
| 2459 { | |
| 2460 XKeyEvent *ev = &event->xkey; | |
| 2461 unsigned int state = ev->state; | |
| 2462 | |
| 788 | 2463 describe_event_window (ev->window, ev->display, pstream); |
| 2464 write_fmt_string (pstream, " subwindow: %ld\n", ev->subwindow); | |
| 2465 write_fmt_string (pstream, " state: "); | |
| 428 | 2466 /* Complete list of modifier key masks */ |
| 788 | 2467 if (state & ShiftMask) write_fmt_string (pstream, "Shift "); |
| 2468 if (state & LockMask) write_fmt_string (pstream, "Lock "); | |
| 2469 if (state & ControlMask) write_fmt_string (pstream, "Control "); | |
| 2470 if (state & Mod1Mask) write_fmt_string (pstream, "Mod1 "); | |
| 2471 if (state & Mod2Mask) write_fmt_string (pstream, "Mod2 "); | |
| 2472 if (state & Mod3Mask) write_fmt_string (pstream, "Mod3 "); | |
| 2473 if (state & Mod4Mask) write_fmt_string (pstream, "Mod4 "); | |
| 2474 if (state & Mod5Mask) write_fmt_string (pstream, "Mod5 "); | |
| 428 | 2475 |
| 2476 if (! state) | |
| 788 | 2477 write_fmt_string (pstream, "vanilla\n"); |
| 428 | 2478 else |
| 788 | 2479 write_fmt_string (pstream, "\n"); |
| 428 | 2480 if (x_key_is_modifier_p (ev->keycode, d)) |
| 788 | 2481 write_fmt_string (pstream, " Modifier key"); |
| 2482 write_fmt_string (pstream, " keycode: 0x%x\n", ev->keycode); | |
| 428 | 2483 } |
| 2484 break; | |
| 2485 | |
| 2486 case Expose: | |
| 442 | 2487 if (debug_x_events > 1) |
| 428 | 2488 { |
| 2489 XExposeEvent *ev = &event->xexpose; | |
| 788 | 2490 describe_event_window (ev->window, ev->display, pstream); |
| 2491 write_fmt_string (pstream, | |
| 2492 " region: x=%d y=%d width=%d height=%d\n", | |
| 428 | 2493 ev->x, ev->y, ev->width, ev->height); |
| 788 | 2494 write_fmt_string (pstream, " count: %d\n", ev->count); |
| 428 | 2495 } |
| 2496 else | |
| 788 | 2497 write_fmt_string (pstream, "\n"); |
| 428 | 2498 break; |
| 2499 | |
| 2500 case GraphicsExpose: | |
| 442 | 2501 if (debug_x_events > 1) |
| 428 | 2502 { |
| 2503 XGraphicsExposeEvent *ev = &event->xgraphicsexpose; | |
| 788 | 2504 describe_event_window (ev->drawable, ev->display, pstream); |
| 2505 write_fmt_string (pstream, " major: %s\n", | |
| 428 | 2506 (ev ->major_code == X_CopyArea ? "CopyArea" : |
| 2507 (ev->major_code == X_CopyPlane ? "CopyPlane" : "?"))); | |
| 788 | 2508 write_fmt_string (pstream, |
| 2509 " region: x=%d y=%d width=%d height=%d\n", | |
| 428 | 2510 ev->x, ev->y, ev->width, ev->height); |
| 788 | 2511 write_fmt_string (pstream, " count: %d\n", ev->count); |
| 428 | 2512 } |
| 2513 else | |
| 788 | 2514 write_fmt_string (pstream, "\n"); |
| 428 | 2515 break; |
| 2516 | |
| 2517 case EnterNotify: | |
| 2518 case LeaveNotify: | |
| 442 | 2519 if (debug_x_events > 1) |
| 428 | 2520 { |
| 2521 XCrossingEvent *ev = &event->xcrossing; | |
| 788 | 2522 describe_event_window (ev->window, ev->display, pstream); |
| 428 | 2523 #if 0 |
| 788 | 2524 write_fmt_string (pstream, " subwindow: 0x%x\n", ev->subwindow); |
| 2525 write_fmt_string (pstream, " pos: %d %d\n", ev->x, ev->y); | |
| 2526 write_fmt_string (pstream, " root pos: %d %d\n", ev->x_root, | |
| 2527 ev->y_root); | |
| 428 | 2528 #endif |
| 788 | 2529 write_fmt_string (pstream, " mode: %s\n", |
| 2530 XEvent_mode_to_string(ev->mode)); | |
| 2531 write_fmt_string (pstream, " detail: %s\n", | |
| 2532 XEvent_detail_to_string(ev->detail)); | |
| 2533 write_fmt_string (pstream, " focus: %d\n", ev->focus); | |
| 428 | 2534 #if 0 |
| 788 | 2535 write_fmt_string (pstream, " state: 0x%x\n", ev->state); |
| 428 | 2536 #endif |
| 2537 } | |
| 2538 else | |
| 788 | 2539 write_fmt_string (pstream, "\n"); |
| 428 | 2540 break; |
| 2541 | |
| 2542 case ConfigureNotify: | |
| 442 | 2543 if (debug_x_events > 1) |
| 428 | 2544 { |
| 2545 XConfigureEvent *ev = &event->xconfigure; | |
| 788 | 2546 describe_event_window (ev->window, ev->display, pstream); |
| 2547 write_fmt_string (pstream, " above: 0x%lx\n", ev->above); | |
| 2548 write_fmt_string (pstream, " size: %d %d %d %d\n", ev->x, ev->y, | |
| 428 | 2549 ev->width, ev->height); |
| 788 | 2550 write_fmt_string (pstream, " redirect: %d\n", |
| 2551 ev->override_redirect); | |
| 428 | 2552 } |
| 2553 else | |
| 788 | 2554 write_fmt_string (pstream, "\n"); |
| 428 | 2555 break; |
| 2556 | |
| 2557 case VisibilityNotify: | |
| 442 | 2558 if (debug_x_events > 1) |
| 428 | 2559 { |
| 2560 XVisibilityEvent *ev = &event->xvisibility; | |
| 788 | 2561 describe_event_window (ev->window, ev->display, pstream); |
| 2562 write_fmt_string (pstream, " state: %s\n", | |
| 2563 XEvent_visibility_to_string (ev->state)); | |
| 428 | 2564 } |
| 2565 else | |
| 788 | 2566 write_fmt_string (pstream, "\n"); |
| 428 | 2567 break; |
| 2568 | |
| 2569 case ClientMessage: | |
| 2570 { | |
| 2571 XClientMessageEvent *ev = &event->xclient; | |
| 2572 char *name = XGetAtomName (ev->display, ev->message_type); | |
| 788 | 2573 write_fmt_string (pstream, "%s", name); |
| 2574 if (!strcmp (name, "WM_PROTOCOLS")) | |
| 2575 { | |
| 2576 char *protname = XGetAtomName (ev->display, ev->data.l[0]); | |
| 2577 write_fmt_string (pstream, "(%s)", protname); | |
| 2578 XFree (protname); | |
| 2579 } | |
| 428 | 2580 XFree (name); |
| 788 | 2581 write_fmt_string (pstream, "\n"); |
| 428 | 2582 break; |
| 2583 } | |
| 2584 | |
| 2585 default: | |
| 788 | 2586 write_fmt_string (pstream, "\n"); |
| 428 | 2587 break; |
| 2588 } | |
| 2589 | |
| 2590 fflush (stdout); | |
| 2591 } | |
| 2592 | |
| 2593 #endif /* include describe_event definition */ | |
| 2594 | |
| 2595 | |
| 2596 /************************************************************************/ | |
| 2597 /* get the next event from Xt */ | |
| 2598 /************************************************************************/ | |
| 2599 | |
| 2600 /* This business exists because menu events "happen" when | |
| 2601 menubar_selection_callback() is called from somewhere deep | |
| 2602 within XtAppProcessEvent in emacs_Xt_next_event(). The | |
| 2603 callback needs to terminate the modal loop in that function | |
| 2604 or else it will continue waiting until another event is | |
| 2605 received. | |
| 2606 | |
| 2607 Same business applies to scrollbar events. */ | |
| 2608 | |
| 2609 void | |
| 2610 signal_special_Xt_user_event (Lisp_Object channel, Lisp_Object function, | |
| 2611 Lisp_Object object) | |
| 2612 { | |
| 2613 Lisp_Object event = Fmake_event (Qnil, Qnil); | |
| 2614 | |
| 934 | 2615 XSET_EVENT_TYPE (event, misc_user_event); |
| 2616 XSET_EVENT_CHANNEL (event, channel); | |
| 1204 | 2617 XSET_EVENT_MISC_USER_FUNCTION (event, function); |
| 2618 XSET_EVENT_MISC_USER_OBJECT (event, object); | |
| 2619 enqueue_dispatch_event (event); | |
| 428 | 2620 } |
| 2621 | |
| 2622 static void | |
| 440 | 2623 emacs_Xt_next_event (Lisp_Event *emacs_event) |
| 428 | 2624 { |
| 2625 we_didnt_get_an_event: | |
| 2626 | |
| 2627 while (NILP (dispatch_event_queue) && | |
| 2628 !completed_timeouts && | |
| 2629 !fake_event_occurred && | |
| 2630 !process_events_occurred && | |
| 2631 !tty_events_occurred) | |
| 2632 { | |
| 1268 | 2633 if (in_modal_loop) |
| 2634 { | |
| 2635 /* in_modal_loop gets set when we are in the process of | |
| 2636 dispatching an event (more specifically, when we are inside of | |
| 2637 a menu callback -- if we get here, it means we called a filter | |
| 2638 and the filter did something that tried to fetch an event, | |
| 2639 e.g. sit-for). In such a case, we cannot safely dispatch any | |
| 2640 more events. This is because those dispatching those events | |
| 2641 could cause lwlib to be entered reentranty, specifically if | |
| 2642 they are menu events. lwlib is not designed for this and will | |
| 2643 crash. We used to see this crash constantly as a result of | |
| 2644 QUIT checking, but QUIT will not now function in a modal loop. | |
| 2645 However, we can't just not process any events at all, because | |
| 2646 that will make sit-for etc. hang. So we go ahead and process | |
| 2647 the non-X kinds of events. */ | |
| 1292 | 2648 #ifdef WIN32_ANY |
| 2649 mswindows_is_blocking = 1; | |
| 2650 #endif | |
| 2651 XtAppProcessEvent (Xt_app_con, XtIMTimer | XtIMAlternateInput); | |
| 2652 #ifdef WIN32_ANY | |
| 2653 mswindows_is_blocking = 0; | |
| 2654 #endif | |
| 1268 | 2655 } |
| 428 | 2656 else |
| 2657 { | |
| 1268 | 2658 /* Stupid logic in XtAppProcessEvent() dictates that, if process |
| 2659 events and X events are both available, the process event gets | |
| 2660 taken first. This will cause an infinite loop if we're being | |
| 2661 called from Fdiscard_input(). | |
| 2662 */ | |
| 2663 | |
| 2664 if (XtAppPending (Xt_app_con) & XtIMXEvent) | |
| 2665 XtAppProcessEvent (Xt_app_con, XtIMXEvent); | |
| 2666 else | |
| 428 | 2667 { |
| 1268 | 2668 Lisp_Object devcons, concons; |
| 2669 | |
| 2670 /* We're about to block. Xt has a bug in it (big surprise, | |
| 2671 there) in that it blocks using select() and doesn't | |
| 2672 flush the Xlib output buffers (XNextEvent() does this | |
| 2673 automatically before blocking). So it's necessary | |
| 2674 for us to do this ourselves. If we don't do it, then | |
| 2675 display output may not be seen until the next time | |
| 2676 an X event is received. (This happens esp. with | |
| 2677 subprocess output that gets sent to a visible buffer.) | |
| 2678 | |
| 2679 #### The above comment may not have any validity. */ | |
| 2680 | |
| 2681 DEVICE_LOOP_NO_BREAK (devcons, concons) | |
| 2682 { | |
| 2683 struct device *d; | |
| 2684 d = XDEVICE (XCAR (devcons)); | |
| 2685 | |
| 2686 if (DEVICE_X_P (d) && DEVICE_X_DISPLAY (d)) | |
| 2687 /* emacs may be exiting */ | |
| 2688 XFlush (DEVICE_X_DISPLAY (d)); | |
| 2689 } | |
| 1292 | 2690 #ifdef WIN32_ANY |
| 2691 mswindows_is_blocking = 1; | |
| 2692 #endif | |
| 1268 | 2693 XtAppProcessEvent (Xt_app_con, XtIMAll); |
| 1292 | 2694 #ifdef WIN32_ANY |
| 2695 mswindows_is_blocking = 0; | |
| 2696 #endif | |
| 428 | 2697 } |
| 2698 } | |
| 2699 } | |
| 2700 | |
| 2701 if (!NILP (dispatch_event_queue)) | |
| 2702 { | |
| 2703 Lisp_Object event, event2; | |
| 793 | 2704 event2 = wrap_event (emacs_event); |
| 1204 | 2705 event = dequeue_dispatch_event (); |
| 428 | 2706 Fcopy_event (event, event2); |
| 2707 Fdeallocate_event (event); | |
| 2708 } | |
| 2709 else if (tty_events_occurred) | |
| 2710 { | |
| 2711 if (!Xt_tty_to_emacs_event (emacs_event)) | |
| 2712 goto we_didnt_get_an_event; | |
| 2713 } | |
| 2714 else if (completed_timeouts) | |
| 2715 Xt_timeout_to_emacs_event (emacs_event); | |
| 2716 else if (fake_event_occurred) | |
| 2717 { | |
| 2718 /* A dummy event, so that a cycle of the command loop will occur. */ | |
| 2719 fake_event_occurred = 0; | |
| 2720 /* eval events have nil as channel */ | |
| 934 | 2721 set_event_type (emacs_event, eval_event); |
| 1204 | 2722 SET_EVENT_EVAL_FUNCTION (emacs_event, Qidentity); |
| 2723 SET_EVENT_EVAL_OBJECT (emacs_event, Qnil); | |
| 428 | 2724 } |
| 2725 else /* if (process_events_occurred) */ | |
| 2726 Xt_process_to_emacs_event (emacs_event); | |
| 2727 | |
| 2728 /* No need to call XFilterEvent; Xt does it for us */ | |
| 2729 } | |
| 2730 | |
| 2731 void | |
| 2286 | 2732 emacs_Xt_event_handler (Widget UNUSED (wid), |
| 2733 XtPointer UNUSED (closure), | |
| 428 | 2734 XEvent *event, |
| 2286 | 2735 Boolean *UNUSED (continue_to_dispatch)) |
| 428 | 2736 { |
| 2737 Lisp_Object emacs_event = Fmake_event (Qnil, Qnil); | |
| 2738 | |
| 2739 #ifdef DEBUG_XEMACS | |
| 442 | 2740 if (debug_x_events > 0) |
| 788 | 2741 describe_event (event, Qexternal_debugging_output); |
| 428 | 2742 #endif /* DEBUG_XEMACS */ |
| 2743 if (x_event_to_emacs_event (event, XEVENT (emacs_event))) | |
| 1204 | 2744 enqueue_dispatch_event (emacs_event); |
| 428 | 2745 else |
| 2746 Fdeallocate_event (emacs_event); | |
| 2747 } | |
| 2748 | |
| 2749 | |
| 2750 /************************************************************************/ | |
| 1204 | 2751 /* input pending */ |
| 428 | 2752 /************************************************************************/ |
| 2753 | |
| 2754 static void | |
| 1204 | 2755 emacs_Xt_drain_queue (void) |
| 428 | 2756 { |
| 2757 Lisp_Object devcons, concons; | |
| 1268 | 2758 if (!in_modal_loop) |
| 428 | 2759 { |
| 1268 | 2760 CONSOLE_LOOP (concons) |
| 428 | 2761 { |
| 1268 | 2762 struct console *con = XCONSOLE (XCAR (concons)); |
| 2763 if (!con->input_enabled) | |
| 2764 continue; | |
| 2765 | |
| 2766 CONSOLE_DEVICE_LOOP (devcons, con) | |
| 1204 | 2767 { |
| 1268 | 2768 struct device *d; |
| 2769 Display *display; | |
| 2770 d = XDEVICE (XCAR (devcons)); | |
| 2771 if (DEVICE_X_P (d) && DEVICE_X_DISPLAY (d)) | |
| 2772 { | |
| 2773 display = DEVICE_X_DISPLAY (d); | |
| 2774 while (XEventsQueued (display, QueuedAfterReading)) | |
| 2775 XtAppProcessEvent (Xt_app_con, XtIMXEvent); | |
| 2776 } | |
| 1204 | 2777 } |
| 428 | 2778 } |
| 1268 | 2779 /* |
| 2780 while (XtAppPending (Xt_app_con) & XtIMXEvent) | |
| 2781 XtAppProcessEvent (Xt_app_con, XtIMXEvent); | |
| 2782 */ | |
| 428 | 2783 } |
| 1268 | 2784 |
| 2785 #ifdef HAVE_TTY | |
| 1204 | 2786 drain_tty_devices (); |
| 428 | 2787 #endif |
| 2788 } | |
| 2789 | |
| 1204 | 2790 int |
| 2791 check_if_pending_expose_event (struct device *dev) | |
| 2792 { | |
| 2793 Display *d = DEVICE_X_DISPLAY (dev); | |
| 2794 Lisp_Object event; | |
| 2795 | |
| 2796 emacs_Xt_drain_queue (); | |
| 2797 | |
| 2798 EVENT_CHAIN_LOOP (event, dispatch_event_queue) | |
| 2799 if (XEVENT_TYPE (event) == magic_event) | |
| 2800 { | |
| 2801 XEvent *xev = &XEVENT_MAGIC_X_EVENT (event); | |
| 2802 if (xev->type == Expose && | |
| 2803 xev->xexpose.display == d) | |
| 2804 return 1; | |
| 2805 } | |
| 2806 | |
| 2807 return 0; | |
| 2808 } | |
| 2809 | |
| 442 | 2810 static int |
| 2811 emacs_Xt_current_event_timestamp (struct console *c) | |
| 2812 { | |
| 2813 /* semi-yuck. */ | |
| 2814 Lisp_Object devs = CONSOLE_DEVICE_LIST (c); | |
| 2815 | |
| 2816 if (NILP (devs)) | |
| 2817 return 0; | |
| 2818 else | |
| 2819 { | |
| 2820 struct device *d = XDEVICE (XCAR (devs)); | |
| 2821 return DEVICE_X_LAST_SERVER_TIMESTAMP (d); | |
| 2822 } | |
| 2823 } | |
| 2824 | |
| 428 | 2825 |
| 2826 /************************************************************************/ | |
| 2827 /* replacement for standard string-to-pixel converter */ | |
| 2828 /************************************************************************/ | |
| 2829 | |
| 2830 /* This was constructed by ripping off the standard string-to-pixel | |
| 2831 converter from Converters.c in the Xt source code and modifying | |
| 2832 appropriately. */ | |
| 2833 | |
| 2834 #if 0 | |
| 2835 | |
| 2836 /* This is exported by the Xt library (at least by mine). If this | |
| 2837 isn't the case somewhere, rename this appropriately and remove | |
| 2838 the '#if 0'. Note, however, that I got "unknown structure" | |
| 2839 errors when I tried this. */ | |
| 2840 XtConvertArgRec Const colorConvertArgs[] = { | |
| 440 | 2841 { XtWidgetBaseOffset, (XtPointer)XtOffsetOf(WidgetRec, core.screen), |
| 2842 sizeof (Screen *) }, | |
| 2843 { XtWidgetBaseOffset, (XtPointer)XtOffsetOf(WidgetRec, core.colormap), | |
| 2844 sizeof (Colormap) } | |
| 428 | 2845 }; |
| 2846 | |
| 2847 #endif | |
| 2848 | |
| 2849 #define done(type, value) \ | |
| 2850 if (toVal->addr != NULL) { \ | |
| 2851 if (toVal->size < sizeof(type)) { \ | |
| 2852 toVal->size = sizeof(type); \ | |
| 2853 return False; \ | |
| 2854 } \ | |
| 2855 *(type*)(toVal->addr) = (value); \ | |
| 2856 } else { \ | |
| 2857 static type static_val; \ | |
| 2858 static_val = (value); \ | |
| 2859 toVal->addr = (XPointer)&static_val; \ | |
| 2860 } \ | |
| 2861 toVal->size = sizeof(type); \ | |
| 2862 return True /* Caller supplies `;' */ | |
| 2863 | |
| 2864 /* JH: We use this because I think there's a possibility this | |
| 2865 is called before the device is properly set up, in which case | |
| 2866 I don't want to abort. */ | |
| 2867 extern struct device *get_device_from_display_1 (Display *dpy); | |
| 2868 | |
| 2869 static | |
| 2870 Boolean EmacsXtCvtStringToPixel ( | |
| 2871 Display *dpy, | |
| 2872 XrmValuePtr args, | |
| 2873 Cardinal *num_args, | |
| 2874 XrmValuePtr fromVal, | |
| 2875 XrmValuePtr toVal, | |
| 2876 XtPointer *closure_ret) | |
| 2877 { | |
| 2878 String str = (String)fromVal->addr; | |
| 2879 XColor screenColor; | |
| 2880 XColor exactColor; | |
| 2881 Screen *screen; | |
| 2882 Colormap colormap; | |
| 2883 Visual *visual; | |
| 2884 struct device *d; | |
| 2885 Status status; | |
| 2886 String params[1]; | |
| 2887 Cardinal num_params = 1; | |
| 2888 XtAppContext the_app_con = XtDisplayToApplicationContext (dpy); | |
| 2889 | |
| 2890 if (*num_args != 2) { | |
| 2891 XtAppWarningMsg(the_app_con, "wrongParameters", "cvtStringToPixel", | |
| 2892 "XtToolkitError", | |
| 2893 "String to pixel conversion needs screen and colormap arguments", | |
| 2894 (String *)NULL, (Cardinal *)NULL); | |
| 2895 return False; | |
| 2896 } | |
| 2897 | |
| 2898 screen = *((Screen **) args[0].addr); | |
| 2899 colormap = *((Colormap *) args[1].addr); | |
| 2900 | |
| 2901 /* The original uses the private function CompareISOLatin1(). | |
| 2902 Use XmuCompareISOLatin1() if you want, but I don't think it | |
| 2903 makes any difference here. */ | |
| 2904 if (strcmp(str, XtDefaultBackground) == 0) { | |
| 2905 *closure_ret = False; | |
| 2906 /* This refers to the display's "*reverseVideo" resource. | |
| 2907 These display resources aren't documented anywhere that | |
| 2908 I can find, so I'm going to ignore this. */ | |
| 2909 /* if (pd->rv) done(Pixel, BlackPixelOfScreen(screen)) else */ | |
| 2910 done(Pixel, WhitePixelOfScreen(screen)); | |
| 2911 } | |
| 2912 if (strcmp(str, XtDefaultForeground) == 0) { | |
| 2913 *closure_ret = False; | |
| 2914 /* if (pd->rv) done(Pixel, WhitePixelOfScreen(screen)) else */ | |
| 2915 done(Pixel, BlackPixelOfScreen(screen)); | |
| 2916 } | |
| 2917 | |
| 2918 /* Originally called XAllocNamedColor() here. */ | |
| 2919 if ((d = get_device_from_display_1(dpy))) { | |
| 2920 visual = DEVICE_X_VISUAL(d); | |
| 2921 if (colormap != DEVICE_X_COLORMAP(d)) { | |
| 442 | 2922 XtAppWarningMsg(the_app_con, "weirdColormap", "cvtStringToPixel", |
| 428 | 2923 "XtToolkitWarning", |
| 442 | 2924 "The colormap passed to cvtStringToPixel doesn't match the one registered to the device.\n", |
| 428 | 2925 NULL, 0); |
| 2926 status = XAllocNamedColor(dpy, colormap, (char*)str, &screenColor, &exactColor); | |
| 2927 } else { | |
| 2928 status = XParseColor (dpy, colormap, (char*)str, &screenColor); | |
| 2929 if (status) { | |
| 3094 | 2930 status = x_allocate_nearest_color (dpy, colormap, visual, &screenColor); |
| 428 | 2931 } |
| 2932 } | |
| 2933 } else { | |
| 2934 /* We haven't set up this device totally yet, so just punt */ | |
| 2935 status = XAllocNamedColor(dpy, colormap, (char*)str, &screenColor, &exactColor); | |
| 2936 } | |
| 2937 if (status == 0) { | |
| 2938 params[0] = str; | |
| 2939 /* Server returns a specific error code but Xlib discards it. Ugh */ | |
| 2940 if (XLookupColor(DisplayOfScreen(screen), colormap, (char*) str, | |
| 2941 &exactColor, &screenColor)) { | |
| 2942 XtAppWarningMsg(the_app_con, "noColormap", "cvtStringToPixel", | |
| 2943 "XtToolkitError", | |
| 2944 "Cannot allocate colormap entry for \"%s\"", | |
| 2945 params, &num_params); | |
| 2946 | |
| 2947 } else { | |
| 2948 XtAppWarningMsg(the_app_con, "badValue", "cvtStringToPixel", | |
| 2949 "XtToolkitError", | |
| 2950 "Color name \"%s\" is not defined", params, &num_params); | |
| 2951 } | |
| 2952 | |
| 2953 *closure_ret = False; | |
| 2954 return False; | |
| 2955 } else { | |
| 2956 *closure_ret = (char*)True; | |
| 2957 done(Pixel, screenColor.pixel); | |
| 2958 } | |
| 2959 } | |
| 2960 | |
| 2961 /* ARGSUSED */ | |
| 2962 static void EmacsFreePixel ( | |
| 2963 XtAppContext app, | |
| 2964 XrmValuePtr toVal, | |
| 2965 XtPointer closure, | |
| 2966 XrmValuePtr args, | |
| 2967 Cardinal *num_args) | |
| 2968 { | |
| 2969 if (*num_args != 2) { | |
| 2970 XtAppWarningMsg(app, "wrongParameters","freePixel","XtToolkitError", | |
| 2971 "Freeing a pixel requires screen and colormap arguments", | |
| 2972 (String *)NULL, (Cardinal *)NULL); | |
| 2973 return; | |
| 2974 } | |
| 2975 | |
| 2976 if (closure) { | |
| 2977 Screen *screen = *((Screen **) args[0].addr); | |
| 2978 Colormap colormap = *((Colormap *) args[1].addr); | |
| 2979 XFreeColors(DisplayOfScreen(screen), colormap, | |
| 2980 (unsigned long*)toVal->addr, 1, (unsigned long)0); | |
| 2981 } | |
| 2982 } | |
| 2983 | |
| 2984 | |
| 2985 /************************************************************************/ | |
| 442 | 2986 /* handle focus changes for native widgets */ |
| 2987 /************************************************************************/ | |
| 2988 static void | |
| 2989 emacs_Xt_event_widget_focus_in (Widget w, | |
| 2990 XEvent *event, | |
| 2286 | 2991 String *UNUSED (params), |
| 2992 Cardinal *UNUSED (num_params)) | |
| 442 | 2993 { |
| 853 | 2994 struct frame *f = |
| 442 | 2995 x_any_widget_or_parent_to_frame (get_device_from_display (event->xany.display), w); |
| 2996 | |
| 2997 XtSetKeyboardFocus (FRAME_X_SHELL_WIDGET (f), w); | |
| 2998 } | |
| 2999 | |
| 3000 static void | |
| 2286 | 3001 emacs_Xt_event_widget_focus_out (Widget UNUSED (w), |
| 3002 XEvent *UNUSED (event), | |
| 3003 String *UNUSED (params), | |
| 3004 Cardinal *UNUSED (num_params)) | |
| 442 | 3005 { |
| 3006 } | |
| 3007 | |
| 3008 static XtActionsRec widgetActionsList[] = | |
| 3009 { | |
|
4528
726060ee587c
First draft of g++ 4.3 warning removal patch. Builds. *Needs ChangeLogs.*
Stephen J. Turnbull <stephen@xemacs.org>
parents:
4522
diff
changeset
|
3010 { (String) "widget-focus-in", emacs_Xt_event_widget_focus_in }, |
|
726060ee587c
First draft of g++ 4.3 warning removal patch. Builds. *Needs ChangeLogs.*
Stephen J. Turnbull <stephen@xemacs.org>
parents:
4522
diff
changeset
|
3011 { (String) "widget-focus-out", emacs_Xt_event_widget_focus_out }, |
| 442 | 3012 }; |
| 3013 | |
| 3014 static void | |
| 3015 emacs_Xt_event_add_widget_actions (XtAppContext ctx) | |
| 3016 { | |
| 3017 XtAppAddActions (ctx, widgetActionsList, 2); | |
| 3018 } | |
| 3019 | |
| 3020 | |
| 3021 /************************************************************************/ | |
| 428 | 3022 /* initialization */ |
| 3023 /************************************************************************/ | |
| 3024 | |
| 3025 void | |
| 3026 syms_of_event_Xt (void) | |
| 3027 { | |
| 3028 } | |
| 3029 | |
| 3030 void | |
| 3031 reinit_vars_of_event_Xt (void) | |
| 3032 { | |
| 1204 | 3033 Xt_event_stream = xnew_and_zero (struct event_stream); |
| 428 | 3034 Xt_event_stream->event_pending_p = emacs_Xt_event_pending_p; |
| 1204 | 3035 Xt_event_stream->force_event_pending_cb= emacs_Xt_force_event_pending; |
| 428 | 3036 Xt_event_stream->next_event_cb = emacs_Xt_next_event; |
| 3037 Xt_event_stream->handle_magic_event_cb = emacs_Xt_handle_magic_event; | |
| 788 | 3038 Xt_event_stream->format_magic_event_cb = emacs_Xt_format_magic_event; |
| 3039 Xt_event_stream->compare_magic_event_cb= emacs_Xt_compare_magic_event; | |
| 3040 Xt_event_stream->hash_magic_event_cb = emacs_Xt_hash_magic_event; | |
| 428 | 3041 Xt_event_stream->add_timeout_cb = emacs_Xt_add_timeout; |
| 3042 Xt_event_stream->remove_timeout_cb = emacs_Xt_remove_timeout; | |
| 3043 Xt_event_stream->select_console_cb = emacs_Xt_select_console; | |
| 3044 Xt_event_stream->unselect_console_cb = emacs_Xt_unselect_console; | |
| 3045 Xt_event_stream->select_process_cb = emacs_Xt_select_process; | |
| 3046 Xt_event_stream->unselect_process_cb = emacs_Xt_unselect_process; | |
| 1204 | 3047 Xt_event_stream->drain_queue_cb = emacs_Xt_drain_queue; |
| 853 | 3048 Xt_event_stream->create_io_streams_cb = emacs_Xt_create_io_streams; |
| 3049 Xt_event_stream->delete_io_streams_cb = emacs_Xt_delete_io_streams; | |
| 442 | 3050 Xt_event_stream->current_event_timestamp_cb = |
| 3051 emacs_Xt_current_event_timestamp; | |
| 428 | 3052 |
| 3053 the_Xt_timeout_blocktype = Blocktype_new (struct Xt_timeout_blocktype); | |
| 3054 | |
| 3055 last_quit_check_signal_tick_count = 0; | |
| 3056 | |
| 3057 /* this function only makes safe calls */ | |
| 3058 init_what_input_once (); | |
| 3059 } | |
| 3060 | |
| 3061 void | |
| 3062 vars_of_event_Xt (void) | |
| 3063 { | |
| 3064 DEFVAR_BOOL ("x-allow-sendevents", &x_allow_sendevents /* | |
| 3065 *Non-nil means to allow synthetic events. Nil means they are ignored. | |
| 3066 Beware: allowing emacs to process SendEvents opens a big security hole. | |
| 3067 */ ); | |
| 3068 x_allow_sendevents = 0; | |
| 3069 | |
| 3070 #ifdef DEBUG_XEMACS | |
| 442 | 3071 DEFVAR_INT ("debug-x-events", &debug_x_events /* |
| 428 | 3072 If non-zero, display debug information about X events that XEmacs sees. |
| 3073 Information is displayed on stderr. Currently defined values are: | |
| 3074 | |
| 3075 1 == non-verbose output | |
| 3076 2 == verbose output | |
| 3077 */ ); | |
| 442 | 3078 debug_x_events = 0; |
| 428 | 3079 #endif |
| 3171 | 3080 DEFVAR_LISP ("x-us-keymap-description", &Vx_us_keymap_description /* |
| 3081 X11-specific vector describing the current keyboard hardware, and how to map | |
| 3082 from its keycodes to those alphanumeric and punctuation characters that | |
| 3083 would be produced by it if a US layout were configured in software. | |
| 3084 | |
| 3085 We use this to make possible the usage of standard key bindings on keyboards | |
| 3086 where the keys that those bindings assume are not available; for example, on | |
| 3087 a Russian keyboard, one can type C-Cyrillic_che C-Cyrillic_a and have XEmacs | |
| 3088 use the binding for C-x C-f, rather than give an error message that | |
| 3089 C-Cyrillic_che C-Cyrillic_a is not bound. | |
| 3090 | |
| 3091 Entries are either nil, which means the corresponding key code does not map | |
| 3092 to a non-function key in the US layout, a single character, meaning it maps to | |
| 3093 that character, or a vector of two characters, the first indicating the | |
| 3094 unshifted mapping, the second the shifted mapping for the US layout. | |
| 3095 | |
| 3096 `x-us-keymap-first-keycode' tells XEmacs the keycode of the first entry in | |
| 3097 this vector. | |
| 3098 */ ); | |
| 3099 Vx_us_keymap_description = Qnil; | |
| 3100 | |
| 3101 DEFVAR_INT ("x-us-keymap-first-keycode", &Vx_us_keymap_first_keycode /* | |
| 3102 The X11 keycode that the first entry in `x-us-keymap-description' | |
| 3103 corresponds to. See the documentation for that variable. | |
| 3104 | |
| 3105 The X11 documentation for XDisplayKeycodes says this can never be less than | |
| 3106 8, but XEmacs doesn't enforce any limitation on what you set it to. | |
| 3107 */ ); | |
| 3108 Vx_us_keymap_first_keycode = 0; | |
| 428 | 3109 } |
| 3110 | |
| 3111 /* This mess is a hack that patches the shell widget to treat visual inheritance | |
| 3112 the same as colormap and depth inheritance */ | |
| 3113 | |
| 3114 static XtInitProc orig_shell_init_proc; | |
| 3115 | |
| 2956 | 3116 static void ShellVisualPatch(Widget wanted, Widget new_, |
| 428 | 3117 ArgList args, Cardinal *num_args) |
| 3118 { | |
| 3119 Widget p; | |
| 2956 | 3120 ShellWidget w = (ShellWidget) new_; |
| 428 | 3121 |
| 3122 /* first, call the original setup */ | |
| 2956 | 3123 (*orig_shell_init_proc)(wanted, new_, args, num_args); |
| 428 | 3124 |
| 3125 /* if the visual isn't explicitly set, grab it from the nearest shell ancestor */ | |
| 3126 if (w->shell.visual == CopyFromParent) { | |
| 3127 p = XtParent(w); | |
| 3128 while (p && !XtIsShell(p)) p = XtParent(p); | |
| 3129 if (p) w->shell.visual = ((ShellWidget)p)->shell.visual; | |
| 3130 } | |
| 3131 } | |
| 3132 | |
| 3133 void | |
| 3134 init_event_Xt_late (void) /* called when already initialized */ | |
| 3135 { | |
| 3136 timeout_id_tick = 1; | |
| 3137 pending_timeouts = 0; | |
| 3138 completed_timeouts = 0; | |
| 3139 | |
| 3140 event_stream = Xt_event_stream; | |
| 3141 | |
| 3142 XtToolkitInitialize (); | |
| 3143 Xt_app_con = XtCreateApplicationContext (); | |
| 3144 XtAppSetFallbackResources (Xt_app_con, (String *) x_fallback_resources); | |
| 3145 | |
| 442 | 3146 /* In select-x.c */ |
| 428 | 3147 x_selection_timeout = (XtAppGetSelectionTimeout (Xt_app_con) / 1000); |
| 3148 XSetErrorHandler (x_error_handler); | |
| 3149 XSetIOErrorHandler (x_IO_error_handler); | |
| 3150 | |
| 442 | 3151 #ifndef WIN32_NATIVE |
| 428 | 3152 XtAppAddInput (Xt_app_con, signal_event_pipe[0], |
| 3153 (XtPointer) (XtInputReadMask /* | XtInputExceptMask */), | |
| 3154 Xt_what_callback, 0); | |
| 3155 #endif | |
| 3156 | |
| 3157 XtAppSetTypeConverter (Xt_app_con, XtRString, XtRPixel, | |
| 3158 EmacsXtCvtStringToPixel, | |
| 3159 (XtConvertArgList) colorConvertArgs, | |
| 3160 2, XtCacheByDisplay, EmacsFreePixel); | |
| 3161 | |
| 3162 #ifdef XIM_XLIB | |
| 3163 XtAppSetTypeConverter (Xt_app_con, XtRString, XtRXimStyles, | |
| 3164 EmacsXtCvtStringToXIMStyles, | |
| 3165 NULL, 0, | |
| 3166 XtCacheByDisplay, EmacsFreeXIMStyles); | |
| 3167 #endif /* XIM_XLIB */ | |
| 442 | 3168 /* Add extra actions to native widgets to handle focus and friends. */ |
| 3169 emacs_Xt_event_add_widget_actions (Xt_app_con); | |
| 428 | 3170 |
| 3171 /* insert the visual inheritance patch/hack described above */ | |
| 3172 orig_shell_init_proc = shellClassRec.core_class.initialize; | |
| 3173 shellClassRec.core_class.initialize = ShellVisualPatch; | |
| 3174 | |
| 3175 } |