| 1 | /* Declarations useful when processing input. |
| 2 | Copyright (C) 1985-1987, 1993, 2001-2014 Free Software Foundation, |
| 3 | Inc. |
| 4 | |
| 5 | This file is part of GNU Emacs. |
| 6 | |
| 7 | GNU Emacs is free software: you can redistribute it and/or modify |
| 8 | it under the terms of the GNU General Public License as published by |
| 9 | the Free Software Foundation, either version 3 of the License, or |
| 10 | (at your option) any later version. |
| 11 | |
| 12 | GNU Emacs is distributed in the hope that it will be useful, |
| 13 | but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 14 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 15 | GNU General Public License for more details. |
| 16 | |
| 17 | You should have received a copy of the GNU General Public License |
| 18 | along with GNU Emacs. If not, see <http://www.gnu.org/licenses/>. */ |
| 19 | |
| 20 | #include "systime.h" /* for struct timespec, Time */ |
| 21 | #include "coding.h" /* for ENCODE_UTF_8 and ENCODE_SYSTEM */ |
| 22 | #include "termhooks.h" |
| 23 | |
| 24 | INLINE_HEADER_BEGIN |
| 25 | |
| 26 | /* Most code should use this macro to access Lisp fields in struct kboard. */ |
| 27 | |
| 28 | #define KVAR(kboard, field) ((kboard)->INTERNAL_FIELD (field)) |
| 29 | |
| 30 | /* Each KBOARD represents one logical input stream from which Emacs |
| 31 | gets input. If we are using ordinary terminals, it has one KBOARD |
| 32 | object for each terminal device. |
| 33 | Usually each X display screen has its own KBOARD, |
| 34 | but when two of them are on the same X server, |
| 35 | we assume they share a keyboard and give them one KBOARD in common. |
| 36 | |
| 37 | Some Lisp variables are per-kboard; they are stored in the KBOARD structure |
| 38 | and accessed indirectly via a Lisp_Misc_Kboard_Objfwd object. |
| 39 | |
| 40 | So that definition of keyboard macros, and reading of prefix arguments, |
| 41 | can happen in parallel on various KBOARDs at once, |
| 42 | the state information for those activities is stored in the KBOARD. |
| 43 | |
| 44 | Emacs has two states for reading input: |
| 45 | |
| 46 | ** Any kboard. Emacs can accept input from any KBOARD, |
| 47 | and as soon as any of them provides a complete command, Emacs can run it. |
| 48 | |
| 49 | ** Single kboard. Then Emacs is running a command for one KBOARD |
| 50 | and can only read input from that KBOARD. |
| 51 | |
| 52 | All input, from all KBOARDs, goes together in a single event queue |
| 53 | at interrupt level. read_char sees the events sequentially, |
| 54 | but deals with them in accord with the current input state. |
| 55 | |
| 56 | In the any-kboard state, read_key_sequence processes input from any KBOARD |
| 57 | immediately. When a new event comes in from a particular KBOARD, |
| 58 | read_key_sequence switches to that KBOARD. As a result, |
| 59 | as soon as a complete key arrives from some KBOARD or other, |
| 60 | Emacs starts executing that key's binding. It switches to the |
| 61 | single-kboard state for the execution of that command, |
| 62 | so that that command can get input only from its own KBOARD. |
| 63 | |
| 64 | While in the single-kboard state, read_char can consider input only |
| 65 | from the current KBOARD. If events come from other KBOARDs, they |
| 66 | are put aside for later in the KBOARDs' kbd_queue lists. |
| 67 | The flag kbd_queue_has_data in a KBOARD is 1 if this has happened. |
| 68 | When Emacs goes back to the any-kboard state, it looks at all the KBOARDs |
| 69 | to find those; and it tries processing their input right away. */ |
| 70 | |
| 71 | typedef struct kboard KBOARD; |
| 72 | struct kboard |
| 73 | { |
| 74 | KBOARD *next_kboard; |
| 75 | |
| 76 | /* If non-nil, a keymap that overrides all others but applies only to |
| 77 | this KBOARD. Lisp code that uses this instead of calling read-char |
| 78 | can effectively wait for input in the any-kboard state, and hence |
| 79 | avoid blocking out the other KBOARDs. See universal-argument in |
| 80 | lisp/simple.el for an example. */ |
| 81 | Lisp_Object INTERNAL_FIELD (Voverriding_terminal_local_map); |
| 82 | |
| 83 | /* Last command executed by the editor command loop, not counting |
| 84 | commands that set the prefix argument. */ |
| 85 | Lisp_Object INTERNAL_FIELD (Vlast_command); |
| 86 | |
| 87 | /* Normally same as last-command, but never modified by other commands. */ |
| 88 | Lisp_Object INTERNAL_FIELD (Vreal_last_command); |
| 89 | |
| 90 | /* User-supplied table to translate input characters through. */ |
| 91 | Lisp_Object INTERNAL_FIELD (Vkeyboard_translate_table); |
| 92 | |
| 93 | /* Last command that may be repeated by `repeat'. */ |
| 94 | Lisp_Object INTERNAL_FIELD (Vlast_repeatable_command); |
| 95 | |
| 96 | /* The prefix argument for the next command, in raw form. */ |
| 97 | Lisp_Object INTERNAL_FIELD (Vprefix_arg); |
| 98 | |
| 99 | /* Saved prefix argument for the last command, in raw form. */ |
| 100 | Lisp_Object INTERNAL_FIELD (Vlast_prefix_arg); |
| 101 | |
| 102 | /* Unread events specific to this kboard. */ |
| 103 | Lisp_Object INTERNAL_FIELD (kbd_queue); |
| 104 | |
| 105 | /* Non-nil while a kbd macro is being defined. */ |
| 106 | Lisp_Object INTERNAL_FIELD (defining_kbd_macro); |
| 107 | |
| 108 | /* The start of storage for the current keyboard macro. */ |
| 109 | Lisp_Object *kbd_macro_buffer; |
| 110 | |
| 111 | /* Where to store the next keystroke of the macro. */ |
| 112 | Lisp_Object *kbd_macro_ptr; |
| 113 | |
| 114 | /* The finalized section of the macro starts at kbd_macro_buffer and |
| 115 | ends before this. This is not the same as kbd_macro_ptr, because |
| 116 | we advance this to kbd_macro_ptr when a key's command is complete. |
| 117 | This way, the keystrokes for "end-kbd-macro" are not included in the |
| 118 | macro. This also allows us to throw away the events added to the |
| 119 | macro by the last command: all the events between kbd_macro_end and |
| 120 | kbd_macro_ptr belong to the last command; see |
| 121 | cancel-kbd-macro-events. */ |
| 122 | Lisp_Object *kbd_macro_end; |
| 123 | |
| 124 | /* Allocated size of kbd_macro_buffer. */ |
| 125 | ptrdiff_t kbd_macro_bufsize; |
| 126 | |
| 127 | /* Last anonymous kbd macro defined. */ |
| 128 | Lisp_Object INTERNAL_FIELD (Vlast_kbd_macro); |
| 129 | |
| 130 | /* Alist of system-specific X windows key symbols. */ |
| 131 | Lisp_Object INTERNAL_FIELD (Vsystem_key_alist); |
| 132 | |
| 133 | /* Cache for modify_event_symbol. */ |
| 134 | Lisp_Object INTERNAL_FIELD (system_key_syms); |
| 135 | |
| 136 | /* The kind of display: x, w32, ... */ |
| 137 | Lisp_Object INTERNAL_FIELD (Vwindow_system); |
| 138 | |
| 139 | /* Keymap mapping keys to alternative preferred forms. |
| 140 | See the DEFVAR for more documentation. */ |
| 141 | Lisp_Object INTERNAL_FIELD (Vlocal_function_key_map); |
| 142 | |
| 143 | /* Keymap mapping ASCII function key sequences onto their preferred |
| 144 | forms. Initialized by the terminal-specific lisp files. See the |
| 145 | DEFVAR for more documentation. */ |
| 146 | Lisp_Object INTERNAL_FIELD (Vinput_decode_map); |
| 147 | |
| 148 | /* Minibufferless frames on this display use this frame's minibuffer. */ |
| 149 | Lisp_Object INTERNAL_FIELD (Vdefault_minibuffer_frame); |
| 150 | |
| 151 | /* Number of displays using this KBOARD. Normally 1, but can be |
| 152 | larger when you have multiple screens on a single X display. */ |
| 153 | int reference_count; |
| 154 | |
| 155 | /* The text we're echoing in the modeline - partial key sequences, |
| 156 | usually. This is nil when not echoing. */ |
| 157 | Lisp_Object INTERNAL_FIELD (echo_string); |
| 158 | |
| 159 | /* This flag indicates that events were put into kbd_queue |
| 160 | while Emacs was running for some other KBOARD. |
| 161 | The flag means that, when Emacs goes into the any-kboard state again, |
| 162 | it should check this KBOARD to see if there is a complete command |
| 163 | waiting. |
| 164 | |
| 165 | Note that the kbd_queue field can be non-nil even when |
| 166 | kbd_queue_has_data is 0. When we push back an incomplete |
| 167 | command, then this flag is 0, meaning we don't want to try |
| 168 | reading from this KBOARD again until more input arrives. */ |
| 169 | char kbd_queue_has_data; |
| 170 | |
| 171 | /* True means echo each character as typed. */ |
| 172 | bool_bf immediate_echo : 1; |
| 173 | |
| 174 | /* If we have echoed a prompt string specified by the user, |
| 175 | this is its length in characters. Otherwise this is -1. */ |
| 176 | ptrdiff_t echo_after_prompt; |
| 177 | }; |
| 178 | |
| 179 | INLINE void |
| 180 | kset_default_minibuffer_frame (struct kboard *kb, Lisp_Object val) |
| 181 | { |
| 182 | kb->INTERNAL_FIELD (Vdefault_minibuffer_frame) = val; |
| 183 | } |
| 184 | INLINE void |
| 185 | kset_defining_kbd_macro (struct kboard *kb, Lisp_Object val) |
| 186 | { |
| 187 | kb->INTERNAL_FIELD (defining_kbd_macro) = val; |
| 188 | } |
| 189 | INLINE void |
| 190 | kset_input_decode_map (struct kboard *kb, Lisp_Object val) |
| 191 | { |
| 192 | kb->INTERNAL_FIELD (Vinput_decode_map) = val; |
| 193 | } |
| 194 | INLINE void |
| 195 | kset_last_command (struct kboard *kb, Lisp_Object val) |
| 196 | { |
| 197 | kb->INTERNAL_FIELD (Vlast_command) = val; |
| 198 | } |
| 199 | INLINE void |
| 200 | kset_last_kbd_macro (struct kboard *kb, Lisp_Object val) |
| 201 | { |
| 202 | kb->INTERNAL_FIELD (Vlast_kbd_macro) = val; |
| 203 | } |
| 204 | INLINE void |
| 205 | kset_prefix_arg (struct kboard *kb, Lisp_Object val) |
| 206 | { |
| 207 | kb->INTERNAL_FIELD (Vprefix_arg) = val; |
| 208 | } |
| 209 | INLINE void |
| 210 | kset_system_key_alist (struct kboard *kb, Lisp_Object val) |
| 211 | { |
| 212 | kb->INTERNAL_FIELD (Vsystem_key_alist) = val; |
| 213 | } |
| 214 | INLINE void |
| 215 | kset_window_system (struct kboard *kb, Lisp_Object val) |
| 216 | { |
| 217 | kb->INTERNAL_FIELD (Vwindow_system) = val; |
| 218 | } |
| 219 | |
| 220 | /* Temporarily used before a frame has been opened. */ |
| 221 | extern KBOARD *initial_kboard; |
| 222 | |
| 223 | /* In the single-kboard state, this is the kboard |
| 224 | from which input is accepted. |
| 225 | |
| 226 | In the any-kboard state, this is the kboard from which we are |
| 227 | right now considering input. We can consider input from another |
| 228 | kboard, but doing so requires throwing to wrong_kboard_jmpbuf. */ |
| 229 | extern KBOARD *current_kboard; |
| 230 | \f |
| 231 | /* Total number of times read_char has returned, modulo UINTMAX_MAX + 1. */ |
| 232 | extern uintmax_t num_input_events; |
| 233 | |
| 234 | /* Nonzero means polling for input is temporarily suppressed. */ |
| 235 | extern int poll_suppress_count; |
| 236 | |
| 237 | /* Vector holding the key sequence that invoked the current command. |
| 238 | It is reused for each command, and it may be longer than the current |
| 239 | sequence; this_command_key_count indicates how many elements |
| 240 | actually mean something. */ |
| 241 | extern Lisp_Object this_command_keys; |
| 242 | extern ptrdiff_t this_command_key_count; |
| 243 | |
| 244 | /* The frame in which the last input event occurred, or Qmacro if the |
| 245 | last event came from a macro. We use this to determine when to |
| 246 | generate switch-frame events. This may be cleared by functions |
| 247 | like Fselect_frame, to make sure that a switch-frame event is |
| 248 | generated by the next character. */ |
| 249 | extern Lisp_Object internal_last_event_frame; |
| 250 | \f |
| 251 | extern Lisp_Object Qrecompute_lucid_menubar, Qactivate_menubar_hook; |
| 252 | |
| 253 | /* This holds a Lisp vector that holds the properties of a single |
| 254 | menu item while decoding it in parse_menu_item. |
| 255 | Using a Lisp vector to hold this information while we decode it |
| 256 | takes care of protecting all the data from GC. */ |
| 257 | extern Lisp_Object item_properties; |
| 258 | |
| 259 | /* This describes the elements of item_properties. |
| 260 | The first element is not a property, it is a pointer to the item properties |
| 261 | that is saved for GC protection. */ |
| 262 | #define ITEM_PROPERTY_ITEM 0 |
| 263 | /* The item string. */ |
| 264 | #define ITEM_PROPERTY_NAME 1 |
| 265 | /* Start of initialize to nil */ |
| 266 | /* The binding: nil, a command or a keymap. */ |
| 267 | #define ITEM_PROPERTY_DEF 2 |
| 268 | /* The keymap if the binding is a keymap, otherwise nil. */ |
| 269 | #define ITEM_PROPERTY_MAP 3 |
| 270 | /* Nil, :radio or :toggle. */ |
| 271 | #define ITEM_PROPERTY_TYPE 4 |
| 272 | /* Nil or a string describing an equivalent key binding. */ |
| 273 | #define ITEM_PROPERTY_KEYEQ 5 |
| 274 | /* Not nil if a selected toggle box or radio button, otherwise nil. */ |
| 275 | #define ITEM_PROPERTY_SELECTED 6 |
| 276 | /* Place for a help string. Not yet used. */ |
| 277 | #define ITEM_PROPERTY_HELP 7 |
| 278 | /* Start of initialize to t */ |
| 279 | /* Last property. */ |
| 280 | /* Not nil if item is enabled. */ |
| 281 | #define ITEM_PROPERTY_ENABLE 8 |
| 282 | |
| 283 | /* This holds a Lisp vector that holds the results of decoding |
| 284 | the keymaps or alist-of-alists that specify a menu. |
| 285 | |
| 286 | It describes the panes and items within the panes. |
| 287 | |
| 288 | Each pane is described by 3 elements in the vector: |
| 289 | t, the pane name, the pane's prefix key. |
| 290 | Then follow the pane's items, with 5 elements per item: |
| 291 | the item string, the enable flag, the item's value, |
| 292 | the definition, and the equivalent keyboard key's description string. |
| 293 | |
| 294 | In some cases, multiple levels of menus may be described. |
| 295 | A single vector slot containing nil indicates the start of a submenu. |
| 296 | A single vector slot containing lambda indicates the end of a submenu. |
| 297 | The submenu follows a menu item which is the way to reach the submenu. |
| 298 | |
| 299 | A single vector slot containing quote indicates that the |
| 300 | following items should appear on the right of a dialog box. |
| 301 | |
| 302 | Using a Lisp vector to hold this information while we decode it |
| 303 | takes care of protecting all the data from GC. */ |
| 304 | extern Lisp_Object menu_items; |
| 305 | |
| 306 | /* If non-nil, means that the global vars defined here are already in use. |
| 307 | Used to detect cases where we try to re-enter this non-reentrant code. */ |
| 308 | extern Lisp_Object menu_items_inuse; |
| 309 | |
| 310 | /* Number of slots currently allocated in menu_items. */ |
| 311 | extern int menu_items_allocated; |
| 312 | |
| 313 | /* This is the index in menu_items of the first empty slot. */ |
| 314 | extern int menu_items_used; |
| 315 | |
| 316 | /* The number of panes currently recorded in menu_items, |
| 317 | excluding those within submenus. */ |
| 318 | extern int menu_items_n_panes; |
| 319 | |
| 320 | #define MENU_ITEMS_PANE_NAME 1 |
| 321 | #define MENU_ITEMS_PANE_PREFIX 2 |
| 322 | #define MENU_ITEMS_PANE_LENGTH 3 |
| 323 | |
| 324 | enum menu_item_idx |
| 325 | { |
| 326 | MENU_ITEMS_ITEM_NAME = 0, |
| 327 | MENU_ITEMS_ITEM_ENABLE, |
| 328 | MENU_ITEMS_ITEM_VALUE, |
| 329 | MENU_ITEMS_ITEM_EQUIV_KEY, |
| 330 | MENU_ITEMS_ITEM_DEFINITION, |
| 331 | MENU_ITEMS_ITEM_TYPE, |
| 332 | MENU_ITEMS_ITEM_SELECTED, |
| 333 | MENU_ITEMS_ITEM_HELP, |
| 334 | MENU_ITEMS_ITEM_LENGTH |
| 335 | }; |
| 336 | |
| 337 | extern void unuse_menu_items (void); |
| 338 | |
| 339 | /* This is how to deal with multibyte text if HAVE_MULTILINGUAL_MENU |
| 340 | isn't defined. The use of HAVE_MULTILINGUAL_MENU could probably be |
| 341 | confined to an extended version of this with sections of code below |
| 342 | using it unconditionally. */ |
| 343 | #ifndef HAVE_NTGUI |
| 344 | #if defined (USE_GTK) || defined (HAVE_NS) |
| 345 | # define ENCODE_MENU_STRING(str) ENCODE_UTF_8 (str) |
| 346 | #elif defined HAVE_X_I18N |
| 347 | #define ENCODE_MENU_STRING(str) ENCODE_SYSTEM (str) |
| 348 | #else |
| 349 | #define ENCODE_MENU_STRING(str) string_make_unibyte (str) |
| 350 | #endif /* USE_GTK */ |
| 351 | #else /* HAVE_NTGUI */ |
| 352 | #define ENCODE_MENU_STRING(str) (str) |
| 353 | #endif |
| 354 | |
| 355 | /* Macros for dealing with lispy events. */ |
| 356 | |
| 357 | /* True if EVENT has data fields describing it (i.e. a mouse click). */ |
| 358 | #define EVENT_HAS_PARAMETERS(event) (CONSP (event)) |
| 359 | |
| 360 | /* Extract the head from an event. |
| 361 | This works on composite and simple events. */ |
| 362 | #define EVENT_HEAD(event) \ |
| 363 | (EVENT_HAS_PARAMETERS (event) ? XCAR (event) : (event)) |
| 364 | |
| 365 | /* Extract the starting and ending positions from a composite event. */ |
| 366 | #define EVENT_START(event) (CAR_SAFE (CDR_SAFE (event))) |
| 367 | #define EVENT_END(event) (CAR_SAFE (CDR_SAFE (CDR_SAFE (event)))) |
| 368 | |
| 369 | /* Extract the click count from a multi-click event. */ |
| 370 | #define EVENT_CLICK_COUNT(event) (Fnth (make_number (2), (event))) |
| 371 | |
| 372 | /* Extract the fields of a position. */ |
| 373 | #define POSN_WINDOW(posn) (CAR_SAFE (posn)) |
| 374 | #define POSN_POSN(posn) (CAR_SAFE (CDR_SAFE (posn))) |
| 375 | #define POSN_SET_POSN(posn,x) (XSETCAR (XCDR (posn), (x))) |
| 376 | #define POSN_WINDOW_POSN(posn) (CAR_SAFE (CDR_SAFE (CDR_SAFE (posn)))) |
| 377 | #define POSN_TIMESTAMP(posn) (CAR_SAFE (CDR_SAFE (CDR_SAFE (CDR_SAFE (posn))))) |
| 378 | #define POSN_SCROLLBAR_PART(posn) (Fnth (make_number (4), (posn))) |
| 379 | |
| 380 | /* A cons (STRING . STRING-CHARPOS), or nil in mouse-click events. |
| 381 | It's a cons if the click is over a string in the mode line. */ |
| 382 | |
| 383 | #define POSN_STRING(posn) (Fnth (make_number (4), (posn))) |
| 384 | |
| 385 | /* If POSN_STRING is nil, event refers to buffer location. */ |
| 386 | |
| 387 | #define POSN_INBUFFER_P(posn) (NILP (POSN_STRING (posn))) |
| 388 | #define POSN_BUFFER_POSN(posn) (Fnth (make_number (5), (posn))) |
| 389 | |
| 390 | /* Some of the event heads. */ |
| 391 | extern Lisp_Object Qswitch_frame; |
| 392 | |
| 393 | /* Properties on event heads. */ |
| 394 | extern Lisp_Object Qevent_kind; |
| 395 | |
| 396 | /* The values of Qevent_kind properties. */ |
| 397 | extern Lisp_Object Qmouse_click; |
| 398 | |
| 399 | extern Lisp_Object Qhelp_echo; |
| 400 | |
| 401 | /* Getting the kind of an event head. */ |
| 402 | #define EVENT_HEAD_KIND(event_head) \ |
| 403 | (Fget ((event_head), Qevent_kind)) |
| 404 | |
| 405 | /* Symbols to use for non-text mouse positions. */ |
| 406 | extern Lisp_Object Qmode_line, Qvertical_line, Qheader_line; |
| 407 | extern Lisp_Object Qright_divider, Qbottom_divider; |
| 408 | |
| 409 | /* True while doing kbd input. */ |
| 410 | extern bool waiting_for_input; |
| 411 | |
| 412 | /* Address (if not 0) of struct timespec to zero out if a SIGIO interrupt |
| 413 | happens. */ |
| 414 | extern struct timespec *input_available_clear_time; |
| 415 | |
| 416 | extern bool ignore_mouse_drag_p; |
| 417 | |
| 418 | /* The primary selection. */ |
| 419 | extern Lisp_Object QPRIMARY; |
| 420 | |
| 421 | extern Lisp_Object parse_modifiers (Lisp_Object); |
| 422 | extern Lisp_Object reorder_modifiers (Lisp_Object); |
| 423 | extern Lisp_Object read_char (int, Lisp_Object, Lisp_Object, |
| 424 | bool *, struct timespec *); |
| 425 | extern int parse_solitary_modifier (Lisp_Object symbol); |
| 426 | |
| 427 | |
| 428 | /* This is like Vthis_command, except that commands never set it. */ |
| 429 | extern Lisp_Object real_this_command; |
| 430 | |
| 431 | /* Non-nil disable property on a command means |
| 432 | do not execute it; call disabled-command-function's value instead. */ |
| 433 | extern Lisp_Object QCtoggle, QCradio; |
| 434 | |
| 435 | /* An event header symbol HEAD may have a property named |
| 436 | Qevent_symbol_element_mask, which is of the form (BASE MODIFIERS); |
| 437 | BASE is the base, unmodified version of HEAD, and MODIFIERS is the |
| 438 | mask of modifiers applied to it. If present, this is used to help |
| 439 | speed up parse_modifiers. */ |
| 440 | extern Lisp_Object Qevent_symbol_element_mask; |
| 441 | |
| 442 | extern int quit_char; |
| 443 | |
| 444 | extern unsigned int timers_run; |
| 445 | |
| 446 | extern bool menu_separator_name_p (const char *); |
| 447 | extern bool parse_menu_item (Lisp_Object, int); |
| 448 | |
| 449 | extern KBOARD *allocate_kboard (Lisp_Object); |
| 450 | extern void delete_kboard (KBOARD *); |
| 451 | extern void not_single_kboard_state (KBOARD *); |
| 452 | extern void push_kboard (struct kboard *); |
| 453 | extern void push_frame_kboard (struct frame *); |
| 454 | extern void pop_kboard (void); |
| 455 | extern void temporarily_switch_to_single_kboard (struct frame *); |
| 456 | extern void record_asynch_buffer_change (void); |
| 457 | extern void input_poll_signal (int); |
| 458 | extern void start_polling (void); |
| 459 | extern void stop_polling (void); |
| 460 | extern void set_poll_suppress_count (int); |
| 461 | extern int gobble_input (void); |
| 462 | extern bool input_polling_used (void); |
| 463 | extern void clear_input_pending (void); |
| 464 | extern bool requeued_events_pending_p (void); |
| 465 | extern void bind_polling_period (int); |
| 466 | extern int make_ctrl_char (int) ATTRIBUTE_CONST; |
| 467 | extern void stuff_buffered_input (Lisp_Object); |
| 468 | extern void clear_waiting_for_input (void); |
| 469 | extern void swallow_events (bool); |
| 470 | extern bool lucid_event_type_list_p (Lisp_Object); |
| 471 | extern void kbd_buffer_store_event (struct input_event *); |
| 472 | extern void kbd_buffer_store_event_hold (struct input_event *, |
| 473 | struct input_event *); |
| 474 | extern void kbd_buffer_unget_event (struct input_event *); |
| 475 | extern void poll_for_input_1 (void); |
| 476 | extern void show_help_echo (Lisp_Object, Lisp_Object, Lisp_Object, |
| 477 | Lisp_Object); |
| 478 | extern void gen_help_event (Lisp_Object, Lisp_Object, Lisp_Object, |
| 479 | Lisp_Object, ptrdiff_t); |
| 480 | extern void kbd_buffer_store_help_event (Lisp_Object, Lisp_Object); |
| 481 | extern Lisp_Object menu_item_eval_property (Lisp_Object); |
| 482 | extern bool kbd_buffer_events_waiting (void); |
| 483 | extern void add_user_signal (int, const char *); |
| 484 | |
| 485 | extern int tty_read_avail_input (struct terminal *, struct input_event *); |
| 486 | extern struct timespec timer_check (void); |
| 487 | extern void mark_kboards (void); |
| 488 | |
| 489 | #ifdef HAVE_NTGUI |
| 490 | extern const char *const lispy_function_keys[]; |
| 491 | #endif |
| 492 | |
| 493 | INLINE_HEADER_END |