blob: 6df14854981dc4b3e179008c05ba6b06628b7d8e [file] [log] [blame]
/* vi:set ts=8 sts=4 sw=4 noet:
*
* VIM - Vi IMproved by Bram Moolenaar
*
* Do ":help uganda" in Vim to read copying and usage conditions.
* Do ":help credits" in Vim to see a list of people who contributed.
* See README.txt for an overview of the Vim source code.
*/
/*
* ui.c: functions that handle the user interface.
* 1. Keyboard input stuff, and a bit of windowing stuff. These are called
* before the machine specific stuff (mch_*) so that we can call the GUI
* stuff instead if the GUI is running.
* 2. Clipboard stuff.
* 3. Input buffer stuff.
*/
#include "vim.h"
#ifdef FEAT_CYGWIN_WIN32_CLIPBOARD
# define WIN32_LEAN_AND_MEAN
# include <windows.h>
# include "winclip.pro"
#endif
void
ui_write(char_u *s, int len)
{
#ifdef FEAT_GUI
if (gui.in_use && !gui.dying && !gui.starting)
{
gui_write(s, len);
if (p_wd)
gui_wait_for_chars(p_wd, typebuf.tb_change_cnt);
return;
}
#endif
#ifndef NO_CONSOLE
// Don't output anything in silent mode ("ex -s") unless 'verbose' set
if (!(silent_mode && p_verbose == 0))
{
#if !defined(MSWIN)
char_u *tofree = NULL;
if (output_conv.vc_type != CONV_NONE)
{
// Convert characters from 'encoding' to 'termencoding'.
tofree = string_convert(&output_conv, s, &len);
if (tofree != NULL)
s = tofree;
}
#endif
mch_write(s, len);
# if !defined(MSWIN)
if (output_conv.vc_type != CONV_NONE)
vim_free(tofree);
# endif
}
#endif
}
#if defined(UNIX) || defined(VMS) || defined(PROTO) || defined(MSWIN)
/*
* When executing an external program, there may be some typed characters that
* are not consumed by it. Give them back to ui_inchar() and they are stored
* here for the next call.
*/
static char_u *ta_str = NULL;
static int ta_off; // offset for next char to use when ta_str != NULL
static int ta_len; // length of ta_str when it's not NULL
void
ui_inchar_undo(char_u *s, int len)
{
char_u *new;
int newlen;
newlen = len;
if (ta_str != NULL)
newlen += ta_len - ta_off;
new = alloc(newlen);
if (new != NULL)
{
if (ta_str != NULL)
{
mch_memmove(new, ta_str + ta_off, (size_t)(ta_len - ta_off));
mch_memmove(new + ta_len - ta_off, s, (size_t)len);
vim_free(ta_str);
}
else
mch_memmove(new, s, (size_t)len);
ta_str = new;
ta_len = newlen;
ta_off = 0;
}
}
#endif
/*
* ui_inchar(): low level input function.
* Get characters from the keyboard.
* Return the number of characters that are available.
* If "wtime" == 0 do not wait for characters.
* If "wtime" == -1 wait forever for characters.
* If "wtime" > 0 wait "wtime" milliseconds for a character.
*
* "tb_change_cnt" is the value of typebuf.tb_change_cnt if "buf" points into
* it. When typebuf.tb_change_cnt changes (e.g., when a message is received
* from a remote client) "buf" can no longer be used. "tb_change_cnt" is NULL
* otherwise.
*/
int
ui_inchar(
char_u *buf,
int maxlen,
long wtime, // don't use "time", MIPS cannot handle it
int tb_change_cnt)
{
int retval = 0;
#if defined(FEAT_GUI) && (defined(UNIX) || defined(VMS))
/*
* Use the typeahead if there is any.
*/
if (ta_str != NULL)
{
if (maxlen >= ta_len - ta_off)
{
mch_memmove(buf, ta_str + ta_off, (size_t)ta_len);
VIM_CLEAR(ta_str);
return ta_len;
}
mch_memmove(buf, ta_str + ta_off, (size_t)maxlen);
ta_off += maxlen;
return maxlen;
}
#endif
#ifdef FEAT_PROFILE
if (do_profiling == PROF_YES && wtime != 0)
prof_inchar_enter();
#endif
#ifdef NO_CONSOLE_INPUT
// Don't wait for character input when the window hasn't been opened yet.
// Do try reading, this works when redirecting stdin from a file.
// Must return something, otherwise we'll loop forever. If we run into
// this very often we probably got stuck, exit Vim.
if (no_console_input())
{
static int count = 0;
# ifndef NO_CONSOLE
retval = mch_inchar(buf, maxlen, wtime, tb_change_cnt);
if (retval > 0 || typebuf_changed(tb_change_cnt) || wtime >= 0)
goto theend;
# endif
if (wtime == -1 && ++count == 1000)
read_error_exit();
buf[0] = CAR;
retval = 1;
goto theend;
}
#endif
// If we are going to wait for some time or block...
if (wtime == -1 || wtime > 100L)
{
// ... allow signals to kill us.
(void)vim_handle_signal(SIGNAL_UNBLOCK);
// ... there is no need for CTRL-C to interrupt something, don't let
// it set got_int when it was mapped.
if ((mapped_ctrl_c | curbuf->b_mapped_ctrl_c) & get_real_state())
ctrl_c_interrupts = FALSE;
}
/*
* Here we call gui_inchar() or mch_inchar(), the GUI or machine-dependent
* input function. The functionality they implement is like this:
*
* while (not timed out)
* {
* handle-resize;
* parse-queued-messages;
* if (waited for 'updatetime')
* trigger-cursorhold;
* ui_wait_for_chars_or_timer()
* if (character available)
* break;
* }
*
* ui_wait_for_chars_or_timer() does:
*
* while (not timed out)
* {
* if (any-timer-triggered)
* invoke-timer-callback;
* wait-for-character();
* if (character available)
* break;
* }
*
* wait-for-character() does:
* while (not timed out)
* {
* Wait for event;
* if (something on channel)
* read/write channel;
* else if (resized)
* handle_resize();
* else if (system event)
* deal-with-system-event;
* else if (character available)
* break;
* }
*
*/
#ifdef FEAT_GUI
if (gui.in_use)
retval = gui_inchar(buf, maxlen, wtime, tb_change_cnt);
#endif
#ifndef NO_CONSOLE
# ifdef FEAT_GUI
else
# endif
retval = mch_inchar(buf, maxlen, wtime, tb_change_cnt);
#endif
if (wtime == -1 || wtime > 100L)
// block SIGHUP et al.
(void)vim_handle_signal(SIGNAL_BLOCK);
ctrl_c_interrupts = TRUE;
#ifdef NO_CONSOLE_INPUT
theend:
#endif
#ifdef FEAT_PROFILE
if (do_profiling == PROF_YES && wtime != 0)
prof_inchar_exit();
#endif
return retval;
}
#if defined(UNIX) || defined(VMS) || defined(FEAT_GUI) || defined(PROTO)
/*
* Common code for mch_inchar() and gui_inchar(): Wait for a while or
* indefinitely until characters are available, dealing with timers and
* messages on channels.
*
* "buf" may be NULL if the available characters are not to be returned, only
* check if they are available.
*
* Return the number of characters that are available.
* If "wtime" == 0 do not wait for characters.
* If "wtime" == n wait a short time for characters.
* If "wtime" == -1 wait forever for characters.
*/
int
inchar_loop(
char_u *buf,
int maxlen,
long wtime, // don't use "time", MIPS cannot handle it
int tb_change_cnt,
int (*wait_func)(long wtime, int *interrupted, int ignore_input),
int (*resize_func)(int check_only))
{
int len;
int interrupted = FALSE;
int did_call_wait_func = FALSE;
int did_start_blocking = FALSE;
long wait_time;
long elapsed_time = 0;
#ifdef ELAPSED_FUNC
elapsed_T start_tv;
ELAPSED_INIT(start_tv);
#endif
// repeat until we got a character or waited long enough
for (;;)
{
// Check if window changed size while we were busy, perhaps the ":set
// columns=99" command was used.
if (resize_func != NULL)
resize_func(FALSE);
#ifdef MESSAGE_QUEUE
// Only process messages when waiting.
if (wtime != 0)
{
parse_queued_messages();
// If input was put directly in typeahead buffer bail out here.
if (typebuf_changed(tb_change_cnt))
return 0;
}
#endif
if (wtime < 0 && did_start_blocking)
// blocking and already waited for p_ut
wait_time = -1;
else
{
if (wtime >= 0)
wait_time = wtime;
else
// going to block after p_ut
wait_time = p_ut;
#ifdef ELAPSED_FUNC
elapsed_time = ELAPSED_FUNC(start_tv);
#endif
wait_time -= elapsed_time;
// If the waiting time is now zero or less, we timed out. However,
// loop at least once to check for characters and events. Matters
// when "wtime" is zero.
if (wait_time <= 0 && did_call_wait_func)
{
if (wtime >= 0)
// no character available within "wtime"
return 0;
// No character available within 'updatetime'.
did_start_blocking = TRUE;
if (trigger_cursorhold() && maxlen >= 3
&& !typebuf_changed(tb_change_cnt))
{
// Put K_CURSORHOLD in the input buffer or return it.
if (buf == NULL)
{
char_u ibuf[3];
ibuf[0] = CSI;
ibuf[1] = KS_EXTRA;
ibuf[2] = (int)KE_CURSORHOLD;
add_to_input_buf(ibuf, 3);
}
else
{
buf[0] = K_SPECIAL;
buf[1] = KS_EXTRA;
buf[2] = (int)KE_CURSORHOLD;
}
return 3;
}
// There is no character available within 'updatetime' seconds:
// flush all the swap files to disk. Also done when
// interrupted by SIGWINCH.
before_blocking();
continue;
}
}
#ifdef FEAT_JOB_CHANNEL
if (wait_time < 0 || wait_time > 100L)
{
// Checking if a job ended requires polling. Do this at least
// every 100 msec.
if (has_pending_job())
wait_time = 100L;
// If there is readahead then parse_queued_messages() timed out and
// we should call it again soon.
if (channel_any_readahead())
wait_time = 10L;
}
#endif
#ifdef FEAT_BEVAL_GUI
if (p_beval && wait_time > 100L)
// The 'balloonexpr' may indirectly invoke a callback while waiting
// for a character, need to check often.
wait_time = 100L;
#endif
// Wait for a character to be typed or another event, such as the winch
// signal or an event on the monitored file descriptors.
did_call_wait_func = TRUE;
if (wait_func(wait_time, &interrupted, FALSE))
{
// If input was put directly in typeahead buffer bail out here.
if (typebuf_changed(tb_change_cnt))
return 0;
// We might have something to return now.
if (buf == NULL)
// "buf" is NULL, we were just waiting, not actually getting
// input.
return input_available();
len = read_from_input_buf(buf, (long)maxlen);
if (len > 0)
return len;
continue;
}
// Timed out or interrupted with no character available.
#ifndef ELAPSED_FUNC
// estimate the elapsed time
elapsed_time += wait_time;
#endif
if ((resize_func != NULL && resize_func(TRUE))
#if defined(FEAT_CLIENTSERVER) && defined(UNIX)
|| server_waiting()
#endif
#ifdef MESSAGE_QUEUE
|| interrupted
#endif
|| wait_time > 0
|| (wtime < 0 && !did_start_blocking))
// no character available, but something to be done, keep going
continue;
// no character available or interrupted, return zero
break;
}
return 0;
}
#endif
#if defined(FEAT_TIMERS) || defined(PROTO)
/*
* Wait for a timer to fire or "wait_func" to return non-zero.
* Returns OK when something was read.
* Returns FAIL when it timed out or was interrupted.
*/
int
ui_wait_for_chars_or_timer(
long wtime,
int (*wait_func)(long wtime, int *interrupted, int ignore_input),
int *interrupted,
int ignore_input)
{
int due_time;
long remaining = wtime;
int tb_change_cnt = typebuf.tb_change_cnt;
# ifdef FEAT_JOB_CHANNEL
int brief_wait = FALSE;
# endif
// When waiting very briefly don't trigger timers.
if (wtime >= 0 && wtime < 10L)
return wait_func(wtime, NULL, ignore_input);
while (wtime < 0 || remaining > 0)
{
// Trigger timers and then get the time in wtime until the next one is
// due. Wait up to that time.
due_time = check_due_timer();
if (typebuf.tb_change_cnt != tb_change_cnt)
{
// timer may have used feedkeys()
return FAIL;
}
if (due_time <= 0 || (wtime > 0 && due_time > remaining))
due_time = remaining;
# if defined(FEAT_JOB_CHANNEL) || defined(FEAT_SOUND_CANBERRA)
if ((due_time < 0 || due_time > 10L) && (
# if defined(FEAT_JOB_CHANNEL)
(
# if defined(FEAT_GUI)
!gui.in_use &&
# endif
(has_pending_job() || channel_any_readahead()))
# ifdef FEAT_SOUND_CANBERRA
||
# endif
# endif
# ifdef FEAT_SOUND_CANBERRA
has_any_sound_callback()
# endif
))
{
// There is a pending job or channel, should return soon in order
// to handle them ASAP. Do check for input briefly.
due_time = 10L;
# ifdef FEAT_JOB_CHANNEL
brief_wait = TRUE;
# endif
}
# endif
if (wait_func(due_time, interrupted, ignore_input))
return OK;
if ((interrupted != NULL && *interrupted)
# ifdef FEAT_JOB_CHANNEL
|| brief_wait
# endif
)
// Nothing available, but need to return so that side effects get
// handled, such as handling a message on a channel.
return FAIL;
if (wtime > 0)
remaining -= due_time;
}
return FAIL;
}
#endif
/*
* Return non-zero if a character is available.
*/
int
ui_char_avail(void)
{
#ifdef FEAT_GUI
if (gui.in_use)
{
gui_mch_update();
return input_available();
}
#endif
#ifndef NO_CONSOLE
# ifdef NO_CONSOLE_INPUT
if (no_console_input())
return 0;
# endif
return mch_char_avail();
#else
return 0;
#endif
}
/*
* Delay for the given number of milliseconds. If ignoreinput is FALSE then we
* cancel the delay if a key is hit.
*/
void
ui_delay(long msec, int ignoreinput)
{
#ifdef FEAT_JOB_CHANNEL
ch_log(NULL, "ui_delay(%ld)", msec);
#endif
#ifdef FEAT_GUI
if (gui.in_use && !ignoreinput)
gui_wait_for_chars(msec, typebuf.tb_change_cnt);
else
#endif
mch_delay(msec, ignoreinput);
}
/*
* If the machine has job control, use it to suspend the program,
* otherwise fake it by starting a new shell.
* When running the GUI iconify the window.
*/
void
ui_suspend(void)
{
#ifdef FEAT_GUI
if (gui.in_use)
{
gui_mch_iconify();
return;
}
#endif
mch_suspend();
}
#if !defined(UNIX) || !defined(SIGTSTP) || defined(PROTO) || defined(__BEOS__)
/*
* When the OS can't really suspend, call this function to start a shell.
* This is never called in the GUI.
*/
void
suspend_shell(void)
{
if (*p_sh == NUL)
emsg(_(e_shellempty));
else
{
msg_puts(_("new shell started\n"));
do_shell(NULL, 0);
}
}
#endif
/*
* Try to get the current Vim shell size. Put the result in Rows and Columns.
* Use the new sizes as defaults for 'columns' and 'lines'.
* Return OK when size could be determined, FAIL otherwise.
*/
int
ui_get_shellsize(void)
{
int retval;
#ifdef FEAT_GUI
if (gui.in_use)
retval = gui_get_shellsize();
else
#endif
retval = mch_get_shellsize();
check_shellsize();
// adjust the default for 'lines' and 'columns'
if (retval == OK)
{
set_number_default("lines", Rows);
set_number_default("columns", Columns);
}
return retval;
}
/*
* Set the size of the Vim shell according to Rows and Columns, if possible.
* The gui_set_shellsize() or mch_set_shellsize() function will try to set the
* new size. If this is not possible, it will adjust Rows and Columns.
*/
void
ui_set_shellsize(
int mustset UNUSED) // set by the user
{
#ifdef FEAT_GUI
if (gui.in_use)
gui_set_shellsize(mustset, TRUE, RESIZE_BOTH);
else
#endif
mch_set_shellsize();
}
/*
* Called when Rows and/or Columns changed. Adjust scroll region and mouse
* region.
*/
void
ui_new_shellsize(void)
{
if (full_screen && !exiting)
{
#ifdef FEAT_GUI
if (gui.in_use)
gui_new_shellsize();
else
#endif
mch_new_shellsize();
}
}
#if ((defined(FEAT_EVAL) || defined(FEAT_TERMINAL)) \
&& (defined(FEAT_GUI) \
|| defined(MSWIN) \
|| (defined(HAVE_TGETENT) && defined(FEAT_TERMRESPONSE)))) \
|| defined(PROTO)
/*
* Get the window position in pixels, if possible.
* Return FAIL when not possible.
*/
int
ui_get_winpos(int *x, int *y, varnumber_T timeout UNUSED)
{
# ifdef FEAT_GUI
if (gui.in_use)
return gui_mch_get_winpos(x, y);
# endif
# if defined(MSWIN) && (!defined(FEAT_GUI) || defined(VIMDLL))
return mch_get_winpos(x, y);
# else
# if defined(HAVE_TGETENT) && defined(FEAT_TERMRESPONSE)
return term_get_winpos(x, y, timeout);
# else
return FAIL;
# endif
# endif
}
#endif
void
ui_breakcheck(void)
{
ui_breakcheck_force(FALSE);
}
/*
* When "force" is true also check when the terminal is not in raw mode.
* This is useful to read input on channels.
*/
void
ui_breakcheck_force(int force)
{
static int recursive = FALSE;
int save_updating_screen = updating_screen;
// We could be called recursively if stderr is redirected, calling
// fill_input_buf() calls settmode() when stdin isn't a tty. settmode()
// calls vgetorpeek() which calls ui_breakcheck() again.
if (recursive)
return;
recursive = TRUE;
// We do not want gui_resize_shell() to redraw the screen here.
++updating_screen;
#ifdef FEAT_GUI
if (gui.in_use)
gui_mch_update();
else
#endif
mch_breakcheck(force);
if (save_updating_screen)
updating_screen = TRUE;
else
after_updating_screen(FALSE);
recursive = FALSE;
}
//////////////////////////////////////////////////////////////////////////////
// Functions for copying and pasting text between applications.
// This is always included in a GUI version, but may also be included when the
// clipboard and mouse is available to a terminal version such as xterm.
// Note: there are some more functions in ops.c that handle selection stuff.
//
// Also note that the majority of functions here deal with the X 'primary'
// (visible - for Visual mode use) selection, and only that. There are no
// versions of these for the 'clipboard' selection, as Visual mode has no use
// for them.
#if defined(FEAT_CLIPBOARD) || defined(PROTO)
static void clip_gen_lose_selection(Clipboard_T *cbd);
static int clip_gen_own_selection(Clipboard_T *cbd);
#if defined(FEAT_X11) && defined(FEAT_XCLIPBOARD) && defined(USE_SYSTEM)
static int clip_x11_owner_exists(Clipboard_T *cbd);
#endif
/*
* Selection stuff using Visual mode, for cutting and pasting text to other
* windows.
*/
/*
* Call this to initialise the clipboard. Pass it FALSE if the clipboard code
* is included, but the clipboard can not be used, or TRUE if the clipboard can
* be used. Eg unix may call this with FALSE, then call it again with TRUE if
* the GUI starts.
*/
void
clip_init(int can_use)
{
Clipboard_T *cb;
cb = &clip_star;
for (;;)
{
cb->available = can_use;
cb->owned = FALSE;
cb->start.lnum = 0;
cb->start.col = 0;
cb->end.lnum = 0;
cb->end.col = 0;
cb->state = SELECT_CLEARED;
if (cb == &clip_plus)
break;
cb = &clip_plus;
}
}
/*
* Check whether the VIsual area has changed, and if so try to become the owner
* of the selection, and free any old converted selection we may still have
* lying around. If the VIsual mode has ended, make a copy of what was
* selected so we can still give it to others. Will probably have to make sure
* this is called whenever VIsual mode is ended.
*/
void
clip_update_selection(Clipboard_T *clip)
{
pos_T start, end;
// If visual mode is only due to a redo command ("."), then ignore it
if (!redo_VIsual_busy && VIsual_active && (State & NORMAL))
{
if (LT_POS(VIsual, curwin->w_cursor))
{
start = VIsual;
end = curwin->w_cursor;
if (has_mbyte)
end.col += (*mb_ptr2len)(ml_get_cursor()) - 1;
}
else
{
start = curwin->w_cursor;
end = VIsual;
}
if (!EQUAL_POS(clip->start, start)
|| !EQUAL_POS(clip->end, end)
|| clip->vmode != VIsual_mode)
{
clip_clear_selection(clip);
clip->start = start;
clip->end = end;
clip->vmode = VIsual_mode;
clip_free_selection(clip);
clip_own_selection(clip);
clip_gen_set_selection(clip);
}
}
}
void
clip_own_selection(Clipboard_T *cbd)
{
/*
* Also want to check somehow that we are reading from the keyboard rather
* than a mapping etc.
*/
#ifdef FEAT_X11
// Always own the selection, we might have lost it without being
// notified, e.g. during a ":sh" command.
if (cbd->available)
{
int was_owned = cbd->owned;
cbd->owned = (clip_gen_own_selection(cbd) == OK);
if (!was_owned && (cbd == &clip_star || cbd == &clip_plus))
{
// May have to show a different kind of highlighting for the
// selected area. There is no specific redraw command for this,
// just redraw all windows on the current buffer.
if (cbd->owned
&& (get_real_state() == VISUAL
|| get_real_state() == SELECTMODE)
&& (cbd == &clip_star ? clip_isautosel_star()
: clip_isautosel_plus())
&& HL_ATTR(HLF_V) != HL_ATTR(HLF_VNC))
redraw_curbuf_later(INVERTED_ALL);
}
}
#else
// Only own the clipboard when we didn't own it yet.
if (!cbd->owned && cbd->available)
cbd->owned = (clip_gen_own_selection(cbd) == OK);
#endif
}
void
clip_lose_selection(Clipboard_T *cbd)
{
#ifdef FEAT_X11
int was_owned = cbd->owned;
#endif
int visual_selection = FALSE;
if (cbd == &clip_star || cbd == &clip_plus)
visual_selection = TRUE;
clip_free_selection(cbd);
cbd->owned = FALSE;
if (visual_selection)
clip_clear_selection(cbd);
clip_gen_lose_selection(cbd);
#ifdef FEAT_X11
if (visual_selection)
{
// May have to show a different kind of highlighting for the selected
// area. There is no specific redraw command for this, just redraw all
// windows on the current buffer.
if (was_owned
&& (get_real_state() == VISUAL
|| get_real_state() == SELECTMODE)
&& (cbd == &clip_star ?
clip_isautosel_star() : clip_isautosel_plus())
&& HL_ATTR(HLF_V) != HL_ATTR(HLF_VNC))
{
update_curbuf(INVERTED_ALL);
setcursor();
cursor_on();
out_flush_cursor(TRUE, FALSE);
}
}
#endif
}
static void
clip_copy_selection(Clipboard_T *clip)
{
if (VIsual_active && (State & NORMAL) && clip->available)
{
clip_update_selection(clip);
clip_free_selection(clip);
clip_own_selection(clip);
if (clip->owned)
clip_get_selection(clip);
clip_gen_set_selection(clip);
}
}
/*
* Save and restore clip_unnamed before doing possibly many changes. This
* prevents accessing the clipboard very often which might slow down Vim
* considerably.
*/
static int global_change_count = 0; // if set, inside a start_global_changes
static int clipboard_needs_update = FALSE; // clipboard needs to be updated
static int clip_did_set_selection = TRUE;
/*
* Save clip_unnamed and reset it.
*/
void
start_global_changes(void)
{
if (++global_change_count > 1)
return;
clip_unnamed_saved = clip_unnamed;
clipboard_needs_update = FALSE;
if (clip_did_set_selection)
{
clip_unnamed = 0;
clip_did_set_selection = FALSE;
}
}
/*
* Return TRUE if setting the clipboard was postponed, it already contains the
* right text.
*/
int
is_clipboard_needs_update()
{
return clipboard_needs_update;
}
/*
* Restore clip_unnamed and set the selection when needed.
*/
void
end_global_changes(void)
{
if (--global_change_count > 0)
// recursive
return;
if (!clip_did_set_selection)
{
clip_did_set_selection = TRUE;
clip_unnamed = clip_unnamed_saved;
clip_unnamed_saved = 0;
if (clipboard_needs_update)
{
// only store something in the clipboard,
// if we have yanked anything to it
if (clip_unnamed & CLIP_UNNAMED)
{
clip_own_selection(&clip_star);
clip_gen_set_selection(&clip_star);
}
if (clip_unnamed & CLIP_UNNAMED_PLUS)
{
clip_own_selection(&clip_plus);
clip_gen_set_selection(&clip_plus);
}
}
}
clipboard_needs_update = FALSE;
}
/*
* Called when Visual mode is ended: update the selection.
*/
void
clip_auto_select(void)
{
if (clip_isautosel_star())
clip_copy_selection(&clip_star);
if (clip_isautosel_plus())
clip_copy_selection(&clip_plus);
}
/*
* Return TRUE if automatic selection of Visual area is desired for the *
* register.
*/
int
clip_isautosel_star(void)
{
return (
#ifdef FEAT_GUI
gui.in_use ? (vim_strchr(p_go, GO_ASEL) != NULL) :
#endif
clip_autoselect_star);
}
/*
* Return TRUE if automatic selection of Visual area is desired for the +
* register.
*/
int
clip_isautosel_plus(void)
{
return (
#ifdef FEAT_GUI
gui.in_use ? (vim_strchr(p_go, GO_ASELPLUS) != NULL) :
#endif
clip_autoselect_plus);
}
/*
* Stuff for general mouse selection, without using Visual mode.
*/
static void clip_invert_area(Clipboard_T *, int, int, int, int, int how);
static void clip_invert_rectangle(Clipboard_T *, int row, int col, int height, int width, int invert);
static void clip_get_word_boundaries(Clipboard_T *, int, int);
static int clip_get_line_end(Clipboard_T *, int);
static void clip_update_modeless_selection(Clipboard_T *, int, int, int, int);
// "how" flags for clip_invert_area()
#define CLIP_CLEAR 1
#define CLIP_SET 2
#define CLIP_TOGGLE 3
/*
* Start, continue or end a modeless selection. Used when editing the
* command-line, in the cmdline window and when the mouse is in a popup window.
*/
void
clip_modeless(int button, int is_click, int is_drag)
{
int repeat;
repeat = ((clip_star.mode == SELECT_MODE_CHAR
|| clip_star.mode == SELECT_MODE_LINE)
&& (mod_mask & MOD_MASK_2CLICK))
|| (clip_star.mode == SELECT_MODE_WORD
&& (mod_mask & MOD_MASK_3CLICK));
if (is_click && button == MOUSE_RIGHT)
{
// Right mouse button: If there was no selection, start one.
// Otherwise extend the existing selection.
if (clip_star.state == SELECT_CLEARED)
clip_start_selection(mouse_col, mouse_row, FALSE);
clip_process_selection(button, mouse_col, mouse_row, repeat);
}
else if (is_click)
clip_start_selection(mouse_col, mouse_row, repeat);
else if (is_drag)
{
// Don't try extending a selection if there isn't one. Happens when
// button-down is in the cmdline and then moving mouse upwards.
if (clip_star.state != SELECT_CLEARED)
clip_process_selection(button, mouse_col, mouse_row, repeat);
}
else // release
clip_process_selection(MOUSE_RELEASE, mouse_col, mouse_row, FALSE);
}
/*
* Compare two screen positions ala strcmp()
*/
static int
clip_compare_pos(
int row1,
int col1,
int row2,
int col2)
{
if (row1 > row2) return(1);
if (row1 < row2) return(-1);
if (col1 > col2) return(1);
if (col1 < col2) return(-1);
return(0);
}
/*
* Start the selection
*/
void
clip_start_selection(int col, int row, int repeated_click)
{
Clipboard_T *cb = &clip_star;
#ifdef FEAT_PROP_POPUP
win_T *wp;
int row_cp = row;
int col_cp = col;
wp = mouse_find_win(&row_cp, &col_cp, FIND_POPUP);
if (wp != NULL && WIN_IS_POPUP(wp)
&& popup_is_in_scrollbar(wp, row_cp, col_cp))
// click or double click in scrollbar does not start a selection
return;
#endif
if (cb->state == SELECT_DONE)
clip_clear_selection(cb);
row = check_row(row);
col = check_col(col);
col = mb_fix_col(col, row);
cb->start.lnum = row;
cb->start.col = col;
cb->end = cb->start;
cb->origin_row = (short_u)cb->start.lnum;
cb->state = SELECT_IN_PROGRESS;
#ifdef FEAT_PROP_POPUP
if (wp != NULL && WIN_IS_POPUP(wp))
{
// Click in a popup window restricts selection to that window,
// excluding the border.
cb->min_col = wp->w_wincol + wp->w_popup_border[3];
cb->max_col = wp->w_wincol + popup_width(wp)
- wp->w_popup_border[1] - wp->w_has_scrollbar;
if (cb->max_col > screen_Columns)
cb->max_col = screen_Columns;
cb->min_row = wp->w_winrow + wp->w_popup_border[0];
cb->max_row = wp->w_winrow + popup_height(wp) - 1
- wp->w_popup_border[2];
}
else
{
cb->min_col = 0;
cb->max_col = screen_Columns;
cb->min_row = 0;
cb->max_row = screen_Rows;
}
#endif
if (repeated_click)
{
if (++cb->mode > SELECT_MODE_LINE)
cb->mode = SELECT_MODE_CHAR;
}
else
cb->mode = SELECT_MODE_CHAR;
#ifdef FEAT_GUI
// clear the cursor until the selection is made
if (gui.in_use)
gui_undraw_cursor();
#endif
switch (cb->mode)
{
case SELECT_MODE_CHAR:
cb->origin_start_col = cb->start.col;
cb->word_end_col = clip_get_line_end(cb, (int)cb->start.lnum);
break;
case SELECT_MODE_WORD:
clip_get_word_boundaries(cb, (int)cb->start.lnum, cb->start.col);
cb->origin_start_col = cb->word_start_col;
cb->origin_end_col = cb->word_end_col;
clip_invert_area(cb, (int)cb->start.lnum, cb->word_start_col,
(int)cb->end.lnum, cb->word_end_col, CLIP_SET);
cb->start.col = cb->word_start_col;
cb->end.col = cb->word_end_col;
break;
case SELECT_MODE_LINE:
clip_invert_area(cb, (int)cb->start.lnum, 0, (int)cb->start.lnum,
(int)Columns, CLIP_SET);
cb->start.col = 0;
cb->end.col = Columns;
break;
}
cb->prev = cb->start;
#ifdef DEBUG_SELECTION
printf("Selection started at (%ld,%d)\n", cb->start.lnum, cb->start.col);
#endif
}
/*
* Continue processing the selection
*/
void
clip_process_selection(
int button,
int col,
int row,
int_u repeated_click)
{
Clipboard_T *cb = &clip_star;
int diff;
int slen = 1; // cursor shape width
if (button == MOUSE_RELEASE)
{
if (cb->state != SELECT_IN_PROGRESS)
return;
// Check to make sure we have something selected
if (cb->start.lnum == cb->end.lnum && cb->start.col == cb->end.col)
{
#ifdef FEAT_GUI
if (gui.in_use)
gui_update_cursor(FALSE, FALSE);
#endif
cb->state = SELECT_CLEARED;
return;
}
#ifdef DEBUG_SELECTION
printf("Selection ended: (%ld,%d) to (%ld,%d)\n", cb->start.lnum,
cb->start.col, cb->end.lnum, cb->end.col);
#endif
if (clip_isautosel_star()
|| (
#ifdef FEAT_GUI
gui.in_use ? (vim_strchr(p_go, GO_ASELML) != NULL) :
#endif
clip_autoselectml))
clip_copy_modeless_selection(FALSE);
#ifdef FEAT_GUI
if (gui.in_use)
gui_update_cursor(FALSE, FALSE);
#endif
cb->state = SELECT_DONE;
return;
}
row = check_row(row);
col = check_col(col);
col = mb_fix_col(col, row);
if (col == (int)cb->prev.col && row == cb->prev.lnum && !repeated_click)
return;
/*
* When extending the selection with the right mouse button, swap the
* start and end if the position is before half the selection
*/
if (cb->state == SELECT_DONE && button == MOUSE_RIGHT)
{
/*
* If the click is before the start, or the click is inside the
* selection and the start is the closest side, set the origin to the
* end of the selection.
*/
if (clip_compare_pos(row, col, (int)cb->start.lnum, cb->start.col) < 0
|| (clip_compare_pos(row, col,
(int)cb->end.lnum, cb->end.col) < 0
&& (((cb->start.lnum == cb->end.lnum
&& cb->end.col - col > col - cb->start.col))
|| ((diff = (cb->end.lnum - row) -
(row - cb->start.lnum)) > 0
|| (diff == 0 && col < (int)(cb->start.col +
cb->end.col) / 2)))))
{
cb->origin_row = (short_u)cb->end.lnum;
cb->origin_start_col = cb->end.col - 1;
cb->origin_end_col = cb->end.col;
}
else
{
cb->origin_row = (short_u)cb->start.lnum;
cb->origin_start_col = cb->start.col;
cb->origin_end_col = cb->start.col;
}
if (cb->mode == SELECT_MODE_WORD && !repeated_click)
cb->mode = SELECT_MODE_CHAR;
}
// set state, for when using the right mouse button
cb->state = SELECT_IN_PROGRESS;
#ifdef DEBUG_SELECTION
printf("Selection extending to (%d,%d)\n", row, col);
#endif
if (repeated_click && ++cb->mode > SELECT_MODE_LINE)
cb->mode = SELECT_MODE_CHAR;
switch (cb->mode)
{
case SELECT_MODE_CHAR:
// If we're on a different line, find where the line ends
if (row != cb->prev.lnum)
cb->word_end_col = clip_get_line_end(cb, row);
// See if we are before or after the origin of the selection
if (clip_compare_pos(row, col, cb->origin_row,
cb->origin_start_col) >= 0)
{
if (col >= (int)cb->word_end_col)
clip_update_modeless_selection(cb, cb->origin_row,
cb->origin_start_col, row, (int)Columns);
else
{
if (has_mbyte && mb_lefthalve(row, col))
slen = 2;
clip_update_modeless_selection(cb, cb->origin_row,
cb->origin_start_col, row, col + slen);
}
}
else
{
if (has_mbyte
&& mb_lefthalve(cb->origin_row, cb->origin_start_col))
slen = 2;
if (col >= (int)cb->word_end_col)
clip_update_modeless_selection(cb, row, cb->word_end_col,
cb->origin_row, cb->origin_start_col + slen);
else
clip_update_modeless_selection(cb, row, col,
cb->origin_row, cb->origin_start_col + slen);
}
break;
case SELECT_MODE_WORD:
// If we are still within the same word, do nothing
if (row == cb->prev.lnum && col >= (int)cb->word_start_col
&& col < (int)cb->word_end_col && !repeated_click)
return;
// Get new word boundaries
clip_get_word_boundaries(cb, row, col);
// Handle being after the origin point of selection
if (clip_compare_pos(row, col, cb->origin_row,
cb->origin_start_col) >= 0)
clip_update_modeless_selection(cb, cb->origin_row,
cb->origin_start_col, row, cb->word_end_col);
else
clip_update_modeless_selection(cb, row, cb->word_start_col,
cb->origin_row, cb->origin_end_col);
break;
case SELECT_MODE_LINE:
if (row == cb->prev.lnum && !repeated_click)
return;
if (clip_compare_pos(row, col, cb->origin_row,
cb->origin_start_col) >= 0)
clip_update_modeless_selection(cb, cb->origin_row, 0, row,
(int)Columns);
else
clip_update_modeless_selection(cb, row, 0, cb->origin_row,
(int)Columns);
break;
}
cb->prev.lnum = row;
cb->prev.col = col;
#ifdef DEBUG_SELECTION
printf("Selection is: (%ld,%d) to (%ld,%d)\n", cb->start.lnum,
cb->start.col, cb->end.lnum, cb->end.col);
#endif
}
# if defined(FEAT_GUI) || defined(PROTO)
/*
* Redraw part of the selection if character at "row,col" is inside of it.
* Only used for the GUI.
*/
void
clip_may_redraw_selection(int row, int col, int len)
{
int start = col;
int end = col + len;
if (clip_star.state != SELECT_CLEARED
&& row >= clip_star.start.lnum
&& row <= clip_star.end.lnum)
{
if (row == clip_star.start.lnum && start < (int)clip_star.start.col)
start = clip_star.start.col;
if (row == clip_star.end.lnum && end > (int)clip_star.end.col)
end = clip_star.end.col;
if (end > start)
clip_invert_area(&clip_star, row, start, row, end, 0);
}
}
# endif
/*
* Called from outside to clear selected region from the display
*/
void
clip_clear_selection(Clipboard_T *cbd)
{
if (cbd->state == SELECT_CLEARED)
return;
clip_invert_area(cbd, (int)cbd->start.lnum, cbd->start.col,
(int)cbd->end.lnum, cbd->end.col, CLIP_CLEAR);
cbd->state = SELECT_CLEARED;
}
/*
* Clear the selection if any lines from "row1" to "row2" are inside of it.
*/
void
clip_may_clear_selection(int row1, int row2)
{
if (clip_star.state == SELECT_DONE
&& row2 >= clip_star.start.lnum
&& row1 <= clip_star.end.lnum)
clip_clear_selection(&clip_star);
}
/*
* Called before the screen is scrolled up or down. Adjusts the line numbers
* of the selection. Call with big number when clearing the screen.
*/
void
clip_scroll_selection(
int rows) // negative for scroll down
{
int lnum;
if (clip_star.state == SELECT_CLEARED)
return;
lnum = clip_star.start.lnum - rows;
if (lnum <= 0)
clip_star.start.lnum = 0;
else if (lnum >= screen_Rows) // scrolled off of the screen
clip_star.state = SELECT_CLEARED;
else
clip_star.start.lnum = lnum;
lnum = clip_star.end.lnum - rows;
if (lnum < 0) // scrolled off of the screen
clip_star.state = SELECT_CLEARED;
else if (lnum >= screen_Rows)
clip_star.end.lnum = screen_Rows - 1;
else
clip_star.end.lnum = lnum;
}
/*
* Invert a region of the display between a starting and ending row and column
* Values for "how":
* CLIP_CLEAR: undo inversion
* CLIP_SET: set inversion
* CLIP_TOGGLE: set inversion if pos1 < pos2, undo inversion otherwise.
* 0: invert (GUI only).
*/
static void
clip_invert_area(
Clipboard_T *cbd,
int row1,
int col1,
int row2,
int col2,
int how)
{
int invert = FALSE;
int max_col;
#ifdef FEAT_PROP_POPUP
max_col = cbd->max_col - 1;
#else
max_col = Columns - 1;
#endif
if (how == CLIP_SET)
invert = TRUE;
// Swap the from and to positions so the from is always before
if (clip_compare_pos(row1, col1, row2, col2) > 0)
{
int tmp_row, tmp_col;
tmp_row = row1;
tmp_col = col1;
row1 = row2;
col1 = col2;
row2 = tmp_row;
col2 = tmp_col;
}
else if (how == CLIP_TOGGLE)
invert = TRUE;
// If all on the same line, do it the easy way
if (row1 == row2)
{
clip_invert_rectangle(cbd, row1, col1, 1, col2 - col1, invert);
}
else
{
// Handle a piece of the first line
if (col1 > 0)
{
clip_invert_rectangle(cbd, row1, col1, 1,
(int)Columns - col1, invert);
row1++;
}
// Handle a piece of the last line
if (col2 < max_col)
{
clip_invert_rectangle(cbd, row2, 0, 1, col2, invert);
row2--;
}
// Handle the rectangle that's left
if (row2 >= row1)
clip_invert_rectangle(cbd, row1, 0, row2 - row1 + 1,
(int)Columns, invert);
}
}
/*
* Invert or un-invert a rectangle of the screen.
* "invert" is true if the result is inverted.
*/
static void
clip_invert_rectangle(
Clipboard_T *cbd UNUSED,
int row_arg,
int col_arg,
int height_arg,
int width_arg,
int invert)
{
int row = row_arg;
int col = col_arg;
int height = height_arg;
int width = width_arg;
#ifdef FEAT_PROP_POPUP
// this goes on top of all popup windows
screen_zindex = CLIP_ZINDEX;
if (col < cbd->min_col)
{
width -= cbd->min_col - col;
col = cbd->min_col;
}
if (width > cbd->max_col - col)
width = cbd->max_col - col;
if (row < cbd->min_row)
{
height -= cbd->min_row - row;
row = cbd->min_row;
}
if (height > cbd->max_row - row + 1)
height = cbd->max_row - row + 1;
#endif
#ifdef FEAT_GUI
if (gui.in_use)
gui_mch_invert_rectangle(row, col, height, width);
else
#endif
screen_draw_rectangle(row, col, height, width, invert);
#ifdef FEAT_PROP_POPUP
screen_zindex = 0;
#endif
}
/*
* Copy the currently selected area into the '*' register so it will be
* available for pasting.
* When "both" is TRUE also copy to the '+' register.
*/
void
clip_copy_modeless_selection(int both UNUSED)
{
char_u *buffer;
char_u *bufp;
int row;
int start_col;
int end_col;
int line_end_col;
int add_newline_flag = FALSE;
int len;
char_u *p;
int row1 = clip_star.start.lnum;
int col1 = clip_star.start.col;
int row2 = clip_star.end.lnum;
int col2 = clip_star.end.col;
// Can't use ScreenLines unless initialized
if (ScreenLines == NULL)
return;
/*
* Make sure row1 <= row2, and if row1 == row2 that col1 <= col2.
*/
if (row1 > row2)
{
row = row1; row1 = row2; row2 = row;
row = col1; col1 = col2; col2 = row;
}
else if (row1 == row2 && col1 > col2)
{
row = col1; col1 = col2; col2 = row;
}
#ifdef FEAT_PROP_POPUP
if (col1 < clip_star.min_col)
col1 = clip_star.min_col;
if (col2 > clip_star.max_col)
col2 = clip_star.max_col;
if (row1 > clip_star.max_row || row2 < clip_star.min_row)
return;
if (row1 < clip_star.min_row)
row1 = clip_star.min_row;
if (row2 > clip_star.max_row)
row2 = clip_star.max_row;
#endif
// correct starting point for being on right halve of double-wide char
p = ScreenLines + LineOffset[row1];
if (enc_dbcs != 0)
col1 -= (*mb_head_off)(p, p + col1);
else if (enc_utf8 && p[col1] == 0)
--col1;
// Create a temporary buffer for storing the text
len = (row2 - row1 + 1) * Columns + 1;
if (enc_dbcs != 0)
len *= 2; // max. 2 bytes per display cell
else if (enc_utf8)
len *= MB_MAXBYTES;
buffer = alloc(len);
if (buffer == NULL) // out of memory
return;
// Process each row in the selection
for (bufp = buffer, row = row1; row <= row2; row++)
{
if (row == row1)
start_col = col1;
else
#ifdef FEAT_PROP_POPUP
start_col = clip_star.min_col;
#else
start_col = 0;
#endif
if (row == row2)
end_col = col2;
else
#ifdef FEAT_PROP_POPUP
end_col = clip_star.max_col;
#else
end_col = Columns;
#endif
line_end_col = clip_get_line_end(&clip_star, row);
// See if we need to nuke some trailing whitespace
if (end_col >=
#ifdef FEAT_PROP_POPUP
clip_star.max_col
#else
Columns
#endif
&& (row < row2 || end_col > line_end_col))
{
// Get rid of trailing whitespace
end_col = line_end_col;
if (end_col < start_col)
end_col = start_col;
// If the last line extended to the end, add an extra newline
if (row == row2)
add_newline_flag = TRUE;
}
// If after the first row, we need to always add a newline
if (row > row1 && !LineWraps[row - 1])
*bufp++ = NL;
// Safetey check for in case resizing went wrong
if (row < screen_Rows && end_col <= screen_Columns)
{
if (enc_dbcs != 0)
{
int i;
p = ScreenLines + LineOffset[row];
for (i = start_col; i < end_col; ++i)
if (enc_dbcs == DBCS_JPNU && p[i] == 0x8e)
{
// single-width double-byte char
*bufp++ = 0x8e;
*bufp++ = ScreenLines2[LineOffset[row] + i];
}
else
{
*bufp++ = p[i];
if (MB_BYTE2LEN(p[i]) == 2)
*bufp++ = p[++i];
}
}
else if (enc_utf8)
{
int off;
int i;
int ci;
off = LineOffset[row];
for (i = start_col; i < end_col; ++i)
{
// The base character is either in ScreenLinesUC[] or
// ScreenLines[].
if (ScreenLinesUC[off + i] == 0)
*bufp++ = ScreenLines[off + i];
else
{
bufp += utf_char2bytes(ScreenLinesUC[off + i], bufp);
for (ci = 0; ci < Screen_mco; ++ci)
{
// Add a composing character.
if (ScreenLinesC[ci][off + i] == 0)
break;
bufp += utf_char2bytes(ScreenLinesC[ci][off + i],
bufp);
}
}
// Skip right halve of double-wide character.
if (ScreenLines[off + i + 1] == 0)
++i;
}
}
else
{
STRNCPY(bufp, ScreenLines + LineOffset[row] + start_col,
end_col - start_col);
bufp += end_col - start_col;
}
}
}
// Add a newline at the end if the selection ended there
if (add_newline_flag)
*bufp++ = NL;
// First cleanup any old selection and become the owner.
clip_free_selection(&clip_star);
clip_own_selection(&clip_star);
// Yank the text into the '*' register.
clip_yank_selection(MCHAR, buffer, (long)(bufp - buffer), &clip_star);
// Make the register contents available to the outside world.
clip_gen_set_selection(&clip_star);
#ifdef FEAT_X11
if (both)
{
// Do the same for the '+' register.
clip_free_selection(&clip_plus);
clip_own_selection(&clip_plus);
clip_yank_selection(MCHAR, buffer, (long)(bufp - buffer), &clip_plus);
clip_gen_set_selection(&clip_plus);
}
#endif
vim_free(buffer);
}
/*
* Find the starting and ending positions of the word at the given row and
* column. Only white-separated words are recognized here.
*/
#define CHAR_CLASS(c) (c <= ' ' ? ' ' : vim_iswordc(c))
static void
clip_get_word_boundaries(Clipboard_T *cb, int row, int col)
{
int start_class;
int temp_col;
char_u *p;
int mboff;
if (row >= screen_Rows || col >= screen_Columns || ScreenLines == NULL)
return;
p = ScreenLines + LineOffset[row];
// Correct for starting in the right halve of a double-wide char
if (enc_dbcs != 0)
col -= dbcs_screen_head_off(p, p + col);
else if (enc_utf8 && p[col] == 0)
--col;
start_class = CHAR_CLASS(p[col]);
temp_col = col;
for ( ; temp_col > 0; temp_col--)
if (enc_dbcs != 0
&& (mboff = dbcs_screen_head_off(p, p + temp_col - 1)) > 0)
temp_col -= mboff;
else if (CHAR_CLASS(p[temp_col - 1]) != start_class
&& !(enc_utf8 && p[temp_col - 1] == 0))
break;
cb->word_start_col = temp_col;
temp_col = col;
for ( ; temp_col < screen_Columns; temp_col++)
if (enc_dbcs != 0 && dbcs_ptr2cells(p + temp_col) == 2)
++temp_col;
else if (CHAR_CLASS(p[temp_col]) != start_class
&& !(enc_utf8 && p[temp_col] == 0))
break;
cb->word_end_col = temp_col;
}
/*
* Find the column position for the last non-whitespace character on the given
* line at or before start_col.
*/
static int
clip_get_line_end(Clipboard_T *cbd UNUSED, int row)
{
int i;
if (row >= screen_Rows || ScreenLines == NULL)
return 0;
for (i =
#ifdef FEAT_PROP_POPUP
cbd->max_col;
#else
screen_Columns;
#endif
i > 0; i--)
if (ScreenLines[LineOffset[row] + i - 1] != ' ')
break;
return i;
}
/*
* Update the currently selected region by adding and/or subtracting from the
* beginning or end and inverting the changed area(s).
*/
static void
clip_update_modeless_selection(
Clipboard_T *cb,
int row1,
int col1,
int row2,
int col2)
{
// See if we changed at the beginning of the selection
if (row1 != cb->start.lnum || col1 != (int)cb->start.col)
{
clip_invert_area(cb, row1, col1, (int)cb->start.lnum, cb->start.col,
CLIP_TOGGLE);
cb->start.lnum = row1;
cb->start.col = col1;
}
// See if we changed at the end of the selection
if (row2 != cb->end.lnum || col2 != (int)cb->end.col)
{
clip_invert_area(cb, (int)cb->end.lnum, cb->end.col, row2, col2,
CLIP_TOGGLE);
cb->end.lnum = row2;
cb->end.col = col2;
}
}
static int
clip_gen_own_selection(Clipboard_T *cbd)
{
#ifdef FEAT_XCLIPBOARD
# ifdef FEAT_GUI
if (gui.in_use)
return clip_mch_own_selection(cbd);
else
# endif
return clip_xterm_own_selection(cbd);
#else
return clip_mch_own_selection(cbd);
#endif
}
static void
clip_gen_lose_selection(Clipboard_T *cbd)
{
#ifdef FEAT_XCLIPBOARD
# ifdef FEAT_GUI
if (gui.in_use)
clip_mch_lose_selection(cbd);
else
# endif
clip_xterm_lose_selection(cbd);
#else
clip_mch_lose_selection(cbd);
#endif
}
void
clip_gen_set_selection(Clipboard_T *cbd)
{
if (!clip_did_set_selection)
{
// Updating postponed, so that accessing the system clipboard won't
// hang Vim when accessing it many times (e.g. on a :g command).
if ((cbd == &clip_plus && (clip_unnamed_saved & CLIP_UNNAMED_PLUS))
|| (cbd == &clip_star && (clip_unnamed_saved & CLIP_UNNAMED)))
{
clipboard_needs_update = TRUE;
return;
}
}
#ifdef FEAT_XCLIPBOARD
# ifdef FEAT_GUI
if (gui.in_use)
clip_mch_set_selection(cbd);
else
# endif
clip_xterm_set_selection(cbd);
#else
clip_mch_set_selection(cbd);
#endif
}
void
clip_gen_request_selection(Clipboard_T *cbd)
{
#ifdef FEAT_XCLIPBOARD
# ifdef FEAT_GUI
if (gui.in_use)
clip_mch_request_selection(cbd);
else
# endif
clip_xterm_request_selection(cbd);
#else
clip_mch_request_selection(cbd);
#endif
}
#if (defined(FEAT_X11) && defined(USE_SYSTEM)) || defined(PROTO)
int
clip_gen_owner_exists(Clipboard_T *cbd UNUSED)
{
#ifdef FEAT_XCLIPBOARD
# ifdef FEAT_GUI_GTK
if (gui.in_use)
return clip_gtk_owner_exists(cbd);
else
# endif
return clip_x11_owner_exists(cbd);
#else
return TRUE;
#endif
}
#endif
/*
* Extract the items in the 'clipboard' option and set global values.
* Return an error message or NULL for success.
*/
char *
check_clipboard_option(void)
{
int new_unnamed = 0;
int new_autoselect_star = FALSE;
int new_autoselect_plus = FALSE;
int new_autoselectml = FALSE;
int new_html = FALSE;
regprog_T *new_exclude_prog = NULL;
char *errmsg = NULL;
char_u *p;
for (p = p_cb; *p != NUL; )
{
if (STRNCMP(p, "unnamed", 7) == 0 && (p[7] == ',' || p[7] == NUL))
{
new_unnamed |= CLIP_UNNAMED;
p += 7;
}
else if (STRNCMP(p, "unnamedplus", 11) == 0
&& (p[11] == ',' || p[11] == NUL))
{
new_unnamed |= CLIP_UNNAMED_PLUS;
p += 11;
}
else if (STRNCMP(p, "autoselect", 10) == 0
&& (p[10] == ',' || p[10] == NUL))
{
new_autoselect_star = TRUE;
p += 10;
}
else if (STRNCMP(p, "autoselectplus", 14) == 0
&& (p[14] == ',' || p[14] == NUL))
{
new_autoselect_plus = TRUE;
p += 14;
}
else if (STRNCMP(p, "autoselectml", 12) == 0
&& (p[12] == ',' || p[12] == NUL))
{
new_autoselectml = TRUE;
p += 12;
}
else if (STRNCMP(p, "html", 4) == 0 && (p[4] == ',' || p[4] == NUL))
{
new_html = TRUE;
p += 4;
}
else if (STRNCMP(p, "exclude:", 8) == 0 && new_exclude_prog == NULL)
{
p += 8;
new_exclude_prog = vim_regcomp(p, RE_MAGIC);
if (new_exclude_prog == NULL)
errmsg = e_invarg;
break;
}
else
{
errmsg = e_invarg;
break;
}
if (*p == ',')
++p;
}
if (errmsg == NULL)
{
clip_unnamed = new_unnamed;
clip_autoselect_star = new_autoselect_star;
clip_autoselect_plus = new_autoselect_plus;
clip_autoselectml = new_autoselectml;
clip_html = new_html;
vim_regfree(clip_exclude_prog);
clip_exclude_prog = new_exclude_prog;
#ifdef FEAT_GUI_GTK
if (gui.in_use)
{
gui_gtk_set_selection_targets();
gui_gtk_set_dnd_targets();
}
#endif
}
else
vim_regfree(new_exclude_prog);
return errmsg;
}
#endif // FEAT_CLIPBOARD
//////////////////////////////////////////////////////////////////////////////
// Functions that handle the input buffer.
// This is used for any GUI version, and the unix terminal version.
//
// For Unix, the input characters are buffered to be able to check for a
// CTRL-C. This should be done with signals, but I don't know how to do that
// in a portable way for a tty in RAW mode.
//
// For the client-server code in the console the received keys are put in the
// input buffer.
#if defined(USE_INPUT_BUF) || defined(PROTO)
/*
* Internal typeahead buffer. Includes extra space for long key code
* descriptions which would otherwise overflow. The buffer is considered full
* when only this extra space (or part of it) remains.
*/
#if defined(FEAT_JOB_CHANNEL) || defined(FEAT_CLIENTSERVER)
/*
* NetBeans stuffs debugger commands into the input buffer.
* This requires a larger buffer...
* (Madsen) Go with this for remote input as well ...
*/
# define INBUFLEN 4096
#else
# define INBUFLEN 250
#endif
static char_u inbuf[INBUFLEN + MAX_KEY_CODE_LEN];
static int inbufcount = 0; // number of chars in inbuf[]
/*
* vim_is_input_buf_full(), vim_is_input_buf_empty(), add_to_input_buf(), and
* trash_input_buf() are functions for manipulating the input buffer. These
* are used by the gui_* calls when a GUI is used to handle keyboard input.
*/
int
vim_is_input_buf_full(void)
{
return (inbufcount >= INBUFLEN);
}
int
vim_is_input_buf_empty(void)
{
return (inbufcount == 0);
}
#if defined(FEAT_OLE) || defined(PROTO)
int
vim_free_in_input_buf(void)
{
return (INBUFLEN - inbufcount);
}
#endif
#if defined(FEAT_GUI_GTK) || defined(PROTO)
int
vim_used_in_input_buf(void)
{
return inbufcount;
}
#endif
/*
* Return the current contents of the input buffer and make it empty.
* The returned pointer must be passed to set_input_buf() later.
*/
char_u *
get_input_buf(void)
{
garray_T *gap;
// We use a growarray to store the data pointer and the length.
gap = ALLOC_ONE(garray_T);
if (gap != NULL)
{
// Add one to avoid a zero size.
gap->ga_data = alloc(inbufcount + 1);
if (gap->ga_data != NULL)
mch_memmove(gap->ga_data, inbuf, (size_t)inbufcount);
gap->ga_len = inbufcount;
}
trash_input_buf();
return (char_u *)gap;
}
/*
* Restore the input buffer with a pointer returned from get_input_buf().
* The allocated memory is freed, this only works once!
*/
void
set_input_buf(char_u *p)
{
garray_T *gap = (garray_T *)p;
if (gap != NULL)
{
if (gap->ga_data != NULL)
{
mch_memmove(inbuf, gap->ga_data, gap->ga_len);
inbufcount = gap->ga_len;
vim_free(gap->ga_data);
}
vim_free(gap);
}
}
/*
* Add the given bytes to the input buffer
* Special keys start with CSI. A real CSI must have been translated to
* CSI KS_EXTRA KE_CSI. K_SPECIAL doesn't require translation.
*/
void
add_to_input_buf(char_u *s, int len)
{
if (inbufcount + len > INBUFLEN + MAX_KEY_CODE_LEN)
return; // Shouldn't ever happen!
while (len--)
inbuf[inbufcount++] = *s++;
}
/*
* Add "str[len]" to the input buffer while escaping CSI bytes.
*/
void
add_to_input_buf_csi(char_u *str, int len)
{
int i;
char_u buf[2];
for (i = 0; i < len; ++i)
{
add_to_input_buf(str + i, 1);
if (str[i] == CSI)
{
// Turn CSI into K_CSI.
buf[0] = KS_EXTRA;
buf[1] = (int)KE_CSI;
add_to_input_buf(buf, 2);
}
}
}
/*
* Remove everything from the input buffer. Called when ^C is found.
*/
void
trash_input_buf(void)
{
inbufcount = 0;
}
/*
* Read as much data from the input buffer as possible up to maxlen, and store
* it in buf.
*/
int
read_from_input_buf(char_u *buf, long maxlen)
{
if (inbufcount == 0) // if the buffer is empty, fill it
fill_input_buf(TRUE);
if (maxlen > inbufcount)
maxlen = inbufcount;
mch_memmove(buf, inbuf, (size_t)maxlen);
inbufcount -= maxlen;
if (inbufcount)
mch_memmove(inbuf, inbuf + maxlen, (size_t)inbufcount);
return (int)maxlen;
}
void
fill_input_buf(int exit_on_error UNUSED)
{
#if defined(UNIX) || defined(VMS) || defined(MACOS_X)
int len;
int try;
static int did_read_something = FALSE;
static char_u *rest = NULL; // unconverted rest of previous read
static int restlen = 0;
int unconverted;
#endif
#ifdef FEAT_GUI
if (gui.in_use
# ifdef NO_CONSOLE_INPUT
// Don't use the GUI input when the window hasn't been opened yet.
// We get here from ui_inchar() when we should try reading from stdin.
&& !no_console_input()
# endif
)
{
gui_mch_update();
return;
}
#endif
#if defined(UNIX) || defined(VMS) || defined(MACOS_X)
if (vim_is_input_buf_full())
return;
/*
* Fill_input_buf() is only called when we really need a character.
* If we can't get any, but there is some in the buffer, just return.
* If we can't get any, and there isn't any in the buffer, we give up and
* exit Vim.
*/
# ifdef __BEOS__
/*
* On the BeBox version (for now), all input is secretly performed within
* beos_select() which is called from RealWaitForChar().
*/
while (!vim_is_input_buf_full() && RealWaitForChar(read_cmd_fd, 0, NULL))
;
len = inbufcount;
inbufcount = 0;
# else
if (rest != NULL)
{
// Use remainder of previous call, starts with an invalid character
// that may become valid when reading more.
if (restlen > INBUFLEN - inbufcount)
unconverted = INBUFLEN - inbufcount;
else
unconverted = restlen;
mch_memmove(inbuf + inbufcount, rest, unconverted);
if (unconverted == restlen)
VIM_CLEAR(rest);
else
{
restlen -= unconverted;
mch_memmove(rest, rest + unconverted, restlen);
}
inbufcount += unconverted;
}
else
unconverted = 0;
len = 0; // to avoid gcc warning
for (try = 0; try < 100; ++try)
{
size_t readlen = (size_t)((INBUFLEN - inbufcount)
/ input_conv.vc_factor);
# ifdef VMS
len = vms_read((char *)inbuf + inbufcount, readlen);
# else
len = read(read_cmd_fd, (char *)inbuf + inbufcount, readlen);
# endif
if (len > 0 || got_int)
break;
/*
* If reading stdin results in an error, continue reading stderr.
* This helps when using "foo | xargs vim".
*/
if (!did_read_something && !isatty(read_cmd_fd) && read_cmd_fd == 0)
{
int m = cur_tmode;
// We probably set the wrong file descriptor to raw mode. Switch
// back to cooked mode, use another descriptor and set the mode to
// what it was.
settmode(TMODE_COOK);
#ifdef HAVE_DUP
// Use stderr for stdin, also works for shell commands.
close(0);
vim_ignored = dup(2);
#else
read_cmd_fd = 2; // read from stderr instead of stdin
#endif
settmode(m);
}
if (!exit_on_error)
return;
}
# endif
if (len <= 0 && !got_int)
read_error_exit();
if (len > 0)
did_read_something = TRUE;
if (got_int)
{
// Interrupted, pretend a CTRL-C was typed.
inbuf[0] = 3;
inbufcount = 1;
}
else
{
/*
* May perform conversion on the input characters.
* Include the unconverted rest of the previous call.
* If there is an incomplete char at the end it is kept for the next
* time, reading more bytes should make conversion possible.
* Don't do this in the unlikely event that the input buffer is too
* small ("rest" still contains more bytes).
*/
if (input_conv.vc_type != CONV_NONE)
{
inbufcount -= unconverted;
len = convert_input_safe(inbuf + inbufcount,
len + unconverted, INBUFLEN - inbufcount,
rest == NULL ? &rest : NULL, &restlen);
}
while (len-- > 0)
{
/*
* If a CTRL-C was typed, remove it from the buffer and set
* got_int. Also recognize CTRL-C with modifyOtherKeys set.
*/
if (ctrl_c_interrupts && (inbuf[inbufcount] == 3
|| (len >= 9 && STRNCMP(inbuf + inbufcount,
"\033[27;5;99~", 10) == 0)))
{
// remove everything typed before the CTRL-C
mch_memmove(inbuf, inbuf + inbufcount, (size_t)(len + 1));
inbufcount = 0;
got_int = TRUE;
}
++inbufcount;
}
}
#endif // UNIX || VMS || MACOS_X
}
#endif // USE_INPUT_BUF
/*
* Exit because of an input read error.
*/
void
read_error_exit(void)
{
if (silent_mode) // Normal way to exit for "ex -s"
getout(0);
STRCPY(IObuff, _("Vim: Error reading input, exiting...\n"));
preserve_exit();
}
#if defined(CURSOR_SHAPE) || defined(PROTO)
/*
* May update the shape of the cursor.
*/
void
ui_cursor_shape_forced(int forced)
{
# ifdef FEAT_GUI
if (gui.in_use)
gui_update_cursor_later();
else
# endif
term_cursor_mode(forced);
# ifdef MCH_CURSOR_SHAPE
mch_update_cursor();
# endif
# ifdef FEAT_CONCEAL
conceal_check_cursor_line();
# endif
}
void
ui_cursor_shape(void)
{
ui_cursor_shape_forced(FALSE);
}
#endif
/*
* Check bounds for column number
*/
int
check_col(int col)
{
if (col < 0)
return 0;
if (col >= (int)screen_Columns)
return (int)screen_Columns - 1;
return col;
}
/*
* Check bounds for row number
*/
int
check_row(int row)
{
if (row < 0)
return 0;
if (row >= (int)screen_Rows)
return (int)screen_Rows - 1;
return row;
}
/*
* Stuff for the X clipboard. Shared between VMS and Unix.
*/
#if defined(FEAT_XCLIPBOARD) || defined(FEAT_GUI_X11) || defined(PROTO)
# include <X11/Xatom.h>
# include <X11/Intrinsic.h>
/*
* Open the application context (if it hasn't been opened yet).
* Used for Motif and Athena GUI and the xterm clipboard.
*/
void
open_app_context(void)
{
if (app_context == NULL)
{
XtToolkitInitialize();
app_context = XtCreateApplicationContext();
}
}
static Atom vim_atom; // Vim's own special selection format
static Atom vimenc_atom; // Vim's extended selection format
static Atom utf8_atom;
static Atom compound_text_atom;
static Atom text_atom;
static Atom targets_atom;
static Atom timestamp_atom; // Used to get a timestamp
void
x11_setup_atoms(Display *dpy)
{
vim_atom = XInternAtom(dpy, VIM_ATOM_NAME, False);
vimenc_atom = XInternAtom(dpy, VIMENC_ATOM_NAME,False);
utf8_atom = XInternAtom(dpy, "UTF8_STRING", False);
compound_text_atom = XInternAtom(dpy, "COMPOUND_TEXT", False);
text_atom = XInternAtom(dpy, "TEXT", False);
targets_atom = XInternAtom(dpy, "TARGETS", False);
clip_star.sel_atom = XA_PRIMARY;
clip_plus.sel_atom = XInternAtom(dpy, "CLIPBOARD", False);
timestamp_atom = XInternAtom(dpy, "TIMESTAMP", False);
}
/*
* X Selection stuff, for cutting and pasting text to other windows.
*/
static Boolean clip_x11_convert_selection_cb(Widget w, Atom *sel_atom, Atom *target, Atom *type, XtPointer *value, long_u *length, int *format);
static void clip_x11_lose_ownership_cb(Widget w, Atom *sel_atom);
static void clip_x11_notify_cb(Widget w, Atom *sel_atom, Atom *target);
/*
* Property callback to get a timestamp for XtOwnSelection.
*/
static void
clip_x11_timestamp_cb(
Widget w,
XtPointer n UNUSED,
XEvent *event,
Boolean *cont UNUSED)
{
Atom actual_type;
int format;
unsigned long nitems, bytes_after;
unsigned char *prop=NULL;
XPropertyEvent *xproperty=&event->xproperty;
// Must be a property notify, state can't be Delete (True), has to be
// one of the supported selection types.
if (event->type != PropertyNotify || xproperty->state
|| (xproperty->atom != clip_star.sel_atom
&& xproperty->atom != clip_plus.sel_atom))
return;
if (XGetWindowProperty(xproperty->display, xproperty->window,
xproperty->atom, 0, 0, False, timestamp_atom, &actual_type, &format,
&nitems, &bytes_after, &prop))
return;
if (prop)
XFree(prop);
// Make sure the property type is "TIMESTAMP" and it's 32 bits.
if (actual_type != timestamp_atom || format != 32)
return;
// Get the selection, using the event timestamp.
if (XtOwnSelection(w, xproperty->atom, xproperty->time,
clip_x11_convert_selection_cb, clip_x11_lose_ownership_cb,
clip_x11_notify_cb) == OK)
{
// Set the "owned" flag now, there may have been a call to
// lose_ownership_cb in between.
if (xproperty->atom == clip_plus.sel_atom)
clip_plus.owned = TRUE;
else
clip_star.owned = TRUE;
}
}
void
x11_setup_selection(Widget w)
{
XtAddEventHandler(w, PropertyChangeMask, False,
/*(XtEventHandler)*/clip_x11_timestamp_cb, (XtPointer)NULL);
}
static void
clip_x11_request_selection_cb(
Widget w UNUSED,
XtPointer success,
Atom *sel_atom,
Atom *type,
XtPointer value,
long_u *length,
int *format)
{
int motion_type = MAUTO;
long_u len;
char_u *p;
char **text_list = NULL;
Clipboard_T *cbd;
char_u *tmpbuf = NULL;
if (*sel_atom == clip_plus.sel_atom)
cbd = &clip_plus;
else
cbd = &clip_star;
if (value == NULL || *length == 0)
{
clip_free_selection(cbd); // nothing received, clear register
*(int *)success = FALSE;
return;
}
p = (char_u *)value;
len = *length;
if (*type == vim_atom)
{
motion_type = *p++;
len--;
}
else if (*type == vimenc_atom)
{
char_u *enc;
vimconv_T conv;
int convlen;
motion_type = *p++;
--len;
enc = p;
p += STRLEN(p) + 1;
len -= p - enc;
// If the encoding of the text is different from 'encoding', attempt
// converting it.
conv.vc_type = CONV_NONE;
convert_setup(&conv, enc, p_enc);
if (conv.vc_type != CONV_NONE)
{
convlen = len; // Need to use an int here.
tmpbuf = string_convert(&conv, p, &convlen);
len = convlen;
if (tmpbuf != NULL)
p = tmpbuf;
convert_setup(&conv, NULL, NULL);
}
}
else if (*type == compound_text_atom
|| *type == utf8_atom
|| (enc_dbcs != 0 && *type == text_atom))
{
XTextProperty text_prop;
int n_text = 0;
int status;
text_prop.value = (unsigned char *)value;
text_prop.encoding = *type;
text_prop.format = *format;
text_prop.nitems = len;
#if defined(X_HAVE_UTF8_STRING)
if (*type == utf8_atom)
status = Xutf8TextPropertyToTextList(X_DISPLAY, &text_prop,
&text_list, &n_text);
else
#endif
status = XmbTextPropertyToTextList(X_DISPLAY, &text_prop,
&text_list, &n_text);
if (status != Success || n_text < 1)
{
*(int *)success = FALSE;
return;
}
p = (char_u *)text_list[0];
len = STRLEN(p);
}
clip_yank_selection(motion_type, p, (long)len, cbd);
if (text_list != NULL)
XFreeStringList(text_list);
vim_free(tmpbuf);
XtFree((char *)value);
*(int *)success = TRUE;
}
void
clip_x11_request_selection(
Widget myShell,
Display *dpy,
Clipboard_T *cbd)
{
XEvent event;
Atom type;
static int success;
int i;
time_t start_time;
int timed_out = FALSE;
for (i = 0; i < 6; i++)
{
switch (i)
{
case 0: type = vimenc_atom; break;
case 1: type = vim_atom; break;
case 2: type = utf8_atom; break;
case 3: type = compound_text_atom; break;
case 4: type = text_atom; break;
default: type = XA_STRING;
}
if (type == utf8_atom
# if defined(X_HAVE_UTF8_STRING)
&& !enc_utf8
# endif
)
// Only request utf-8 when 'encoding' is utf8 and
// Xutf8TextPropertyToTextList is available.
continue;
success = MAYBE;
XtGetSelectionValue(myShell, cbd->sel_atom, type,
clip_x11_request_selection_cb, (XtPointer)&success, CurrentTime);
// Make sure the request for the selection goes out before waiting for
// a response.
XFlush(dpy);
/*
* Wait for result of selection request, otherwise if we type more
* characters, then they will appear before the one that requested the
* paste! Don't worry, we will catch up with any other events later.
*/
start_time = time(NULL);
while (success == MAYBE)
{
if (XCheckTypedEvent(dpy, PropertyNotify, &event)
|| XCheckTypedEvent(dpy, SelectionNotify, &event)
|| XCheckTypedEvent(dpy, SelectionRequest, &event))
{
// This is where clip_x11_request_selection_cb() should be
// called. It may actually happen a bit later, so we loop
// until "success" changes.
// We may get a SelectionRequest here and if we don't handle
// it we hang. KDE klipper does this, for example.
// We need to handle a PropertyNotify for large selections.
XtDispatchEvent(&event);
continue;
}
// Time out after 2 to 3 seconds to avoid that we hang when the
// other process doesn't respond. Note that the SelectionNotify
// event may still come later when the selection owner comes back
// to life and the text gets inserted unexpectedly. Don't know
// why that happens or how to avoid that :-(.
if (time(NULL) > start_time + 2)
{
timed_out = TRUE;
break;
}
// Do we need this? Probably not.
XSync(dpy, False);
// Wait for 1 msec to avoid that we eat up all CPU time.
ui_delay(1L, TRUE);
}
if (success == TRUE)
return;
// don't do a retry with another type after timing out, otherwise we
// hang for 15 seconds.
if (timed_out)
break;
}
// Final fallback position - use the X CUT_BUFFER0 store
yank_cut_buffer0(dpy, cbd);
}
static Boolean
clip_x11_convert_selection_cb(
Widget w UNUSED,
Atom *sel_atom,
Atom *target,
Atom *type,
XtPointer *value,
long_u *length,
int *format)
{
static char_u *save_result = NULL;
static long_u save_length = 0;
char_u *string;
int motion_type;
Clipboard_T *cbd;
int i;
if (*sel_atom == clip_plus.sel_atom)
cbd = &clip_plus;
else
cbd = &clip_star;
if (!cbd->owned)
return False; // Shouldn't ever happen
// requestor wants to know what target types we support
if (*target == targets_atom)
{
static Atom array[7];
*value = (XtPointer)array;
i = 0;
array[i++] = targets_atom;
array[i++] = vimenc_atom;
array[i++] = vim_atom;
if (enc_utf8)
array[i++] = utf8_atom;
array[i++] = XA_STRING;
array[i++] = text_atom;
array[i++] = compound_text_atom;
*type = XA_ATOM;
// This used to be: *format = sizeof(Atom) * 8; but that caused
// crashes on 64 bit machines. (Peter Derr)
*format = 32;
*length = i;
return True;
}
if ( *target != XA_STRING
&& *target != vimenc_atom
&& (*target != utf8_atom || !enc_utf8)
&& *target != vim_atom
&& *target != text_atom
&& *target != compound_text_atom)
return False;
clip_get_selection(cbd);
motion_type = clip_convert_selection(&string, length, cbd);
if (motion_type < 0)
return False;
// For our own format, the first byte contains the motion type
if (*target == vim_atom)
(*length)++;
// Our own format with encoding: motion 'encoding' NUL text
if (*target == vimenc_atom)
*length += STRLEN(p_enc) + 2;
if (save_length < *length || save_length / 2 >= *length)
*value = XtRealloc((char *)save_result, (Cardinal)*length + 1);
else
*value = save_result;
if (*value == NULL)
{
vim_free(string);
return False;
}
save_result = (char_u *)*value;
save_length = *length;
if (*target == XA_STRING || (*target == utf8_atom && enc_utf8))
{
mch_memmove(save_result, string, (size_t)(*length));
*type = *target;
}
else if (*target == compound_text_atom || *target == text_atom)
{
XTextProperty text_prop;
char *string_nt = (char *)save_result;
int conv_result;
// create NUL terminated string which XmbTextListToTextProperty wants
mch_memmove(string_nt, string, (size_t)*length);
string_nt[*length] = NUL;
conv_result = XmbTextListToTextProperty(X_DISPLAY, (char **)&string_nt,
1, XCompoundTextStyle, &text_prop);
if (conv_result != Success)
{
vim_free(string);
return False;
}
*value = (XtPointer)(text_prop.value); // from plain text
*length = text_prop.nitems;
*type = compound_text_atom;
XtFree((char *)save_result);
save_result = (char_u *)*value;
save_length = *length;
}
else if (*target == vimenc_atom)
{
int l = STRLEN(p_enc);
save_result[0] = motion_type;
STRCPY(save_result + 1, p_enc);
mch_memmove(save_result + l + 2, string, (size_t)(*length - l - 2));
*type = vimenc_atom;
}
else
{
save_result[0] = motion_type;
mch_memmove(save_result + 1, string, (size_t)(*length - 1));
*type = vim_atom;
}
*format = 8; // 8 bits per char
vim_free(string);
return True;
}
static void
clip_x11_lose_ownership_cb(Widget w UNUSED, Atom *sel_atom)
{
if (*sel_atom == clip_plus.sel_atom)
clip_lose_selection(&clip_plus);
else
clip_lose_selection(&clip_star);
}
void
clip_x11_lose_selection(Widget myShell, Clipboard_T *cbd)
{
XtDisownSelection(myShell, cbd->sel_atom,
XtLastTimestampProcessed(XtDisplay(myShell)));
}
static void
clip_x11_notify_cb(Widget w UNUSED, Atom *sel_atom UNUSED, Atom *target UNUSED)
{
// To prevent automatically freeing the selection value.
}
int
clip_x11_own_selection(Widget myShell, Clipboard_T *cbd)
{
// When using the GUI we have proper timestamps, use the one of the last
// event. When in the console we don't get events (the terminal gets
// them), Get the time by a zero-length append, clip_x11_timestamp_cb will
// be called with the current timestamp.
#ifdef FEAT_GUI
if (gui.in_use)
{
if (XtOwnSelection(myShell, cbd->sel_atom,
XtLastTimestampProcessed(XtDisplay(myShell)),
clip_x11_convert_selection_cb, clip_x11_lose_ownership_cb,
clip_x11_notify_cb) == False)
return FAIL;
}
else
#endif
{
if (!XChangeProperty(XtDisplay(myShell), XtWindow(myShell),
cbd->sel_atom, timestamp_atom, 32, PropModeAppend, NULL, 0))
return FAIL;
}
// Flush is required in a terminal as nothing else is doing it.
XFlush(XtDisplay(myShell));
return OK;
}
/*
* Send the current selection to the clipboard. Do nothing for X because we
* will fill in the selection only when requested by another app.
*/
void
clip_x11_set_selection(Clipboard_T *cbd UNUSED)
{
}
#if (defined(FEAT_X11) && defined(FEAT_XCLIPBOARD) && defined(USE_SYSTEM)) \
|| defined(PROTO)
static int
clip_x11_owner_exists(Clipboard_T *cbd)
{
return XGetSelectionOwner(X_DISPLAY, cbd->sel_atom) != None;
}
#endif
#endif
#if defined(FEAT_XCLIPBOARD) || defined(FEAT_GUI_X11) \
|| defined(FEAT_GUI_GTK) || defined(PROTO)
/*
* Get the contents of the X CUT_BUFFER0 and put it in "cbd".
*/
void
yank_cut_buffer0(Display *dpy, Clipboard_T *cbd)
{
int nbytes = 0;
char_u *buffer = (char_u *)XFetchBuffer(dpy, &nbytes, 0);
if (nbytes > 0)
{
int done = FALSE;
// CUT_BUFFER0 is supposed to be always latin1. Convert to 'enc' when
// using a multi-byte encoding. Conversion between two 8-bit
// character sets usually fails and the text might actually be in
// 'enc' anyway.
if (has_mbyte)
{
char_u *conv_buf;
vimconv_T vc;
vc.vc_type = CONV_NONE;
if (convert_setup(&vc, (char_u *)"latin1", p_enc) == OK)
{
conv_buf = string_convert(&vc, buffer, &nbytes);
if (conv_buf != NULL)
{
clip_yank_selection(MCHAR, conv_buf, (long)nbytes, cbd);
vim_free(conv_buf);
done = TRUE;
}
convert_setup(&vc, NULL, NULL);
}
}
if (!done) // use the text without conversion
clip_yank_selection(MCHAR, buffer, (long)nbytes, cbd);
XFree((void *)buffer);
if (p_verbose > 0)
{
verbose_enter();
verb_msg(_("Used CUT_BUFFER0 instead of empty selection"));
verbose_leave();
}
}
}
#endif
#if defined(FEAT_GUI) || defined(MSWIN) || defined(PROTO)
/*
* Called when focus changed. Used for the GUI or for systems where this can
* be done in the console (Win32).
*/
void
ui_focus_change(
int in_focus) // TRUE if focus gained.
{
static time_t last_time = (time_t)0;
int need_redraw = FALSE;
// When activated: Check if any file was modified outside of Vim.
// Only do this when not done within the last two seconds (could get
// several events in a row).
if (in_focus && last_time + 2 < time(NULL))
{
need_redraw = check_timestamps(
# ifdef FEAT_GUI
gui.in_use
# else
FALSE
# endif
);
last_time = time(NULL);
}
/*
* Fire the focus gained/lost autocommand.
*/
need_redraw |= apply_autocmds(in_focus ? EVENT_FOCUSGAINED
: EVENT_FOCUSLOST, NULL, NULL, FALSE, curbuf);
if (need_redraw)
{
// Something was executed, make sure the cursor is put back where it
// belongs.
need_wait_return = FALSE;
if (State & CMDLINE)
redrawcmdline();
else if (State == HITRETURN || State == SETWSIZE || State == ASKMORE
|| State == EXTERNCMD || State == CONFIRM || exmode_active)
repeat_message();
else if ((State & NORMAL) || (State & INSERT))
{
if (must_redraw != 0)
update_screen(0);
setcursor();
}
cursor_on(); // redrawing may have switched it off
out_flush_cursor(FALSE, TRUE);
# ifdef FEAT_GUI
if (gui.in_use)
gui_update_scrollbars(FALSE);
# endif
}
#ifdef FEAT_TITLE
// File may have been changed from 'readonly' to 'noreadonly'
if (need_maketitle)
maketitle();
#endif
}
#endif
#if defined(HAVE_INPUT_METHOD) || defined(PROTO)
/*
* Save current Input Method status to specified place.
*/
void
im_save_status(long *psave)
{
// Don't save when 'imdisable' is set or "xic" is NULL, IM is always
// disabled then (but might start later).
// Also don't save when inside a mapping, vgetc_im_active has not been set
// then.
// And don't save when the keys were stuffed (e.g., for a "." command).
// And don't save when the GUI is running but our window doesn't have
// input focus (e.g., when a find dialog is open).
if (!p_imdisable && KeyTyped && !KeyStuffed
# ifdef FEAT_XIM
&& xic != NULL
# endif
# ifdef FEAT_GUI
&& (!gui.in_use || gui.in_focus)
# endif
)
{
// Do save when IM is on, or IM is off and saved status is on.
if (vgetc_im_active)
*psave = B_IMODE_IM;
else if (*psave == B_IMODE_IM)
*psave = B_IMODE_NONE;
}
}
#endif