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gerrit.omnirom.org / android_external_vim / d2f49879990407b209f39397b9880f91f851a49a / . / src / clipboard.c
blob: 8b9850e44ee2bb94650133ecdedb30753c43ae45 [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.
*/
/*
* clipboard.c: Functions to handle the clipboard
*/
#include "vim.h"
#ifdef FEAT_CYGWIN_WIN32_CLIPBOARD
# define WIN32_LEAN_AND_MEAN
# include <windows.h>
# include "winclip.pro"
#endif
// 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)
/*
* 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 & MODE_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);
}
}
}
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
}
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() == MODE_VISUAL
|| get_real_state() == MODE_SELECT)
&& (cbd == &clip_star ? clip_isautosel_star()
: clip_isautosel_plus())
&& HL_ATTR(HLF_V) != HL_ATTR(HLF_VNC))
redraw_curbuf_later(UPD_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
}
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_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() == MODE_VISUAL
|| get_real_state() == MODE_SELECT)
&& (cbd == &clip_star ?
clip_isautosel_star() : clip_isautosel_plus())
&& HL_ATTR(HLF_V) != HL_ATTR(HLF_VNC)
&& !exiting)
{
update_curbuf(UPD_INVERTED_ALL);
setcursor();
cursor_on();
out_flush_cursor(TRUE, FALSE);
}
}
#endif
}
static void
clip_copy_selection(Clipboard_T *clip)
{
if (VIsual_active && (State & MODE_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.
*/
static int
is_clipboard_needs_update(void)
{
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.
*/
/*
* 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);
}
// "how" flags for clip_invert_area()
#define CLIP_CLEAR 1
#define CLIP_SET 2
#define CLIP_TOGGLE 3
/*
* 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
}
/*
* 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);
}
}
/*
* 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 them 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);
}
/*
* 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;
}
}
/*
* 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 half 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;
}
/*
* 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;
}
/*
* 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 half 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 half 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);
}
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
}
static 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(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
#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 *
did_set_clipboard(optset_T *args UNUSED)
{
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; )
{
// Note: Keep this in sync with p_cb_values.
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_invalid_argument;
break;
}
else
{
errmsg = e_invalid_argument;
break;
}
if (*p == ',')
++p;
}
if (errmsg == NULL)
{
if (global_busy)
// clip_unnamed will be reset to clip_unnamed_saved
// at end_global_changes
clip_unnamed_saved = new_unnamed;
else
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((GdkAtom)GDK_SELECTION_PRIMARY);
gui_gtk_set_selection_targets((GdkAtom)clip_plus.gtk_sel_atom);
gui_gtk_set_dnd_targets();
}
#endif
}
else
vim_regfree(new_exclude_prog);
return errmsg;
}
/*
* 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 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 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, &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);
}
static void
clip_x11_notify_cb(Widget w UNUSED, Atom *sel_atom UNUSED, Atom *target UNUSED)
{
// To prevent automatically freeing the selection value.
}
/*
* Property callback to get a timestamp for XtOwnSelection.
*/
# if (defined(FEAT_X11) && defined(FEAT_XCLIPBOARD)) || defined(PROTO)
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);
}
# endif
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);
}
void
clip_x11_lose_selection(Widget myShell, Clipboard_T *cbd)
{
XtDisownSelection(myShell, cbd->sel_atom,
XtLastTimestampProcessed(XtDisplay(myShell)));
}
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)
{
}
#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
/*
* SELECTION / PRIMARY ('*')
*
* Text selection stuff that uses the GUI selection register '*'. When using a
* GUI this may be text from another window, otherwise it is the last text we
* had highlighted with VIsual mode. With mouse support, clicking the middle
* button performs the paste, otherwise you will need to do <"*p>. "
* If not under X, it is synonymous with the clipboard register '+'.
*
* X CLIPBOARD ('+')
*
* Text selection stuff that uses the GUI clipboard register '+'.
* Under X, this matches the standard cut/paste buffer CLIPBOARD selection.
* It will be used for unnamed cut/pasting is 'clipboard' contains "unnamed",
* otherwise you will need to do <"+p>. "
* If not under X, it is synonymous with the selection register '*'.
*/
/*
* Routine to export any final X selection we had to the environment
* so that the text is still available after Vim has exited. X selections
* only exist while the owning application exists, so we write to the
* permanent (while X runs) store CUT_BUFFER0.
* Dump the CLIPBOARD selection if we own it (it's logically the more
* 'permanent' of the two), otherwise the PRIMARY one.
* For now, use a hard-coded sanity limit of 1Mb of data.
*/
#if (defined(FEAT_X11) && defined(FEAT_CLIPBOARD)) || defined(PROTO)
void
x11_export_final_selection(void)
{
Display *dpy;
char_u *str = NULL;
long_u len = 0;
int motion_type = -1;
# ifdef FEAT_GUI
if (gui.in_use)
dpy = X_DISPLAY;
else
# endif
# ifdef FEAT_XCLIPBOARD
dpy = xterm_dpy;
# else
return;
# endif
// Get selection to export
if (clip_plus.owned)
motion_type = clip_convert_selection(&str, &len, &clip_plus);
else if (clip_star.owned)
motion_type = clip_convert_selection(&str, &len, &clip_star);
// Check it's OK
if (dpy != NULL && str != NULL && motion_type >= 0
&& len < 1024*1024 && len > 0)
{
int ok = TRUE;
// The CUT_BUFFER0 is supposed to always contain latin1. Convert from
// 'enc' when it is a multi-byte encoding. When 'enc' is an 8-bit
// encoding conversion usually doesn't work, so keep the text as-is.
if (has_mbyte)
{
vimconv_T vc;
vc.vc_type = CONV_NONE;
if (convert_setup(&vc, p_enc, (char_u *)"latin1") == OK)
{
int intlen = len;
char_u *conv_str;
vc.vc_fail = TRUE;
conv_str = string_convert(&vc, str, &intlen);
len = intlen;
if (conv_str != NULL)
{
vim_free(str);
str = conv_str;
}
else
{
ok = FALSE;
}
convert_setup(&vc, NULL, NULL);
}
else
{
ok = FALSE;
}
}
// Do not store the string if conversion failed. Better to use any
// other selection than garbled text.
if (ok)
{
XStoreBuffer(dpy, (char *)str, (int)len, 0);
XFlush(dpy);
}
}
vim_free(str);
}
#endif
void
clip_free_selection(Clipboard_T *cbd)
{
yankreg_T *y_ptr = get_y_current();
if (cbd == &clip_plus)
set_y_current(get_y_register(PLUS_REGISTER));
else
set_y_current(get_y_register(STAR_REGISTER));
free_yank_all();
get_y_current()->y_size = 0;
set_y_current(y_ptr);
}
/*
* Get the selected text and put it in register '*' or '+'.
*/
void
clip_get_selection(Clipboard_T *cbd)
{
yankreg_T *old_y_previous, *old_y_current;
pos_T old_cursor;
pos_T old_visual;
int old_visual_mode;
colnr_T old_curswant;
int old_set_curswant;
pos_T old_op_start, old_op_end;
oparg_T oa;
cmdarg_T ca;
if (cbd->owned)
{
if ((cbd == &clip_plus
&& get_y_register(PLUS_REGISTER)->y_array != NULL)
|| (cbd == &clip_star
&& get_y_register(STAR_REGISTER)->y_array != NULL))
return;
// Avoid triggering autocmds such as TextYankPost.
block_autocmds();
// Get the text between clip_star.start & clip_star.end
old_y_previous = get_y_previous();
old_y_current = get_y_current();
old_cursor = curwin->w_cursor;
old_curswant = curwin->w_curswant;
old_set_curswant = curwin->w_set_curswant;
old_op_start = curbuf->b_op_start;
old_op_end = curbuf->b_op_end;
old_visual = VIsual;
old_visual_mode = VIsual_mode;
clear_oparg(&oa);
oa.regname = (cbd == &clip_plus ? '+' : '*');
oa.op_type = OP_YANK;
CLEAR_FIELD(ca);
ca.oap = &oa;
ca.cmdchar = 'y';
ca.count1 = 1;
ca.retval = CA_NO_ADJ_OP_END;
do_pending_operator(&ca, 0, TRUE);
// restore things
set_y_previous(old_y_previous);
set_y_current(old_y_current);
curwin->w_cursor = old_cursor;
changed_cline_bef_curs(); // need to update w_virtcol et al
curwin->w_curswant = old_curswant;
curwin->w_set_curswant = old_set_curswant;
curbuf->b_op_start = old_op_start;
curbuf->b_op_end = old_op_end;
VIsual = old_visual;
VIsual_mode = old_visual_mode;
unblock_autocmds();
}
else if (!is_clipboard_needs_update())
{
clip_free_selection(cbd);
// Try to get selected text from another window
clip_gen_request_selection(cbd);
}
}
/*
* Convert from the GUI selection string into the '*'/'+' register.
*/
void
clip_yank_selection(
int type,
char_u *str,
long len,
Clipboard_T *cbd)
{
yankreg_T *y_ptr;
if (cbd == &clip_plus)
y_ptr = get_y_register(PLUS_REGISTER);
else
y_ptr = get_y_register(STAR_REGISTER);
clip_free_selection(cbd);
str_to_reg(y_ptr, type, str, len, -1, FALSE);
}
/*
* Convert the '*'/'+' register into a GUI selection string returned in *str
* with length *len.
* Returns the motion type, or -1 for failure.
*/
int
clip_convert_selection(char_u **str, long_u *len, Clipboard_T *cbd)
{
char_u *p;
int lnum;
int i, j;
int_u eolsize;
yankreg_T *y_ptr;
if (cbd == &clip_plus)
y_ptr = get_y_register(PLUS_REGISTER);
else
y_ptr = get_y_register(STAR_REGISTER);
# ifdef USE_CRNL
eolsize = 2;
# else
eolsize = 1;
# endif
*str = NULL;
*len = 0;
if (y_ptr->y_array == NULL)
return -1;
for (i = 0; i < y_ptr->y_size; i++)
*len += (long_u)STRLEN(y_ptr->y_array[i]) + eolsize;
// Don't want newline character at end of last line if we're in MCHAR mode.
if (y_ptr->y_type == MCHAR && *len >= eolsize)
*len -= eolsize;
p = *str = alloc(*len + 1); // add one to avoid zero
if (p == NULL)
return -1;
lnum = 0;
for (i = 0, j = 0; i < (int)*len; i++, j++)
{
if (y_ptr->y_array[lnum][j] == '\n')
p[i] = NUL;
else if (y_ptr->y_array[lnum][j] == NUL)
{
# ifdef USE_CRNL
p[i++] = '\r';
# endif
p[i] = '\n';
lnum++;
j = -1;
}
else
p[i] = y_ptr->y_array[lnum][j];
}
return y_ptr->y_type;
}
/*
* When "regname" is a clipboard register, obtain the selection. If it's not
* available return zero, otherwise return "regname".
*/
int
may_get_selection(int regname)
{
if (regname == '*')
{
if (!clip_star.available)
regname = 0;
else
clip_get_selection(&clip_star);
}
else if (regname == '+')
{
if (!clip_plus.available)
regname = 0;
else
clip_get_selection(&clip_plus);
}
return regname;
}
/*
* If we have written to a clipboard register, send the text to the clipboard.
*/
void
may_set_selection(void)
{
if ((get_y_current() == get_y_register(STAR_REGISTER))
&& clip_star.available)
{
clip_own_selection(&clip_star);
clip_gen_set_selection(&clip_star);
}
else if ((get_y_current() == get_y_register(PLUS_REGISTER))
&& clip_plus.available)
{
clip_own_selection(&clip_plus);
clip_gen_set_selection(&clip_plus);
}
}
/*
* Adjust the register name pointed to with "rp" for the clipboard being
* used always and the clipboard being available.
*/
void
adjust_clip_reg(int *rp)
{
// If no reg. specified, and "unnamed" or "unnamedplus" is in 'clipboard',
// use '*' or '+' reg, respectively. "unnamedplus" prevails.
if (*rp == 0 && (clip_unnamed != 0 || clip_unnamed_saved != 0))
{
if (clip_unnamed != 0)
*rp = ((clip_unnamed & CLIP_UNNAMED_PLUS) && clip_plus.available)
? '+' : '*';
else
*rp = ((clip_unnamed_saved & CLIP_UNNAMED_PLUS)
&& clip_plus.available) ? '+' : '*';
}
if (!clip_star.available && *rp == '*')
*rp = 0;
if (!clip_plus.available && *rp == '+')
*rp = 0;
}
#endif // FEAT_CLIPBOARD