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authorDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-10 20:09:20 +0000
committerDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-10 20:09:20 +0000
commit029f72b1a93430b24b88eb3a72c6114d9f149737 (patch)
tree765d5c2041967f9c6fef195fe343d9234a030e90 /src/clipboard.c
parentInitial commit. (diff)
downloadvim-029f72b1a93430b24b88eb3a72c6114d9f149737.tar.xz
vim-029f72b1a93430b24b88eb3a72c6114d9f149737.zip
Adding upstream version 2:9.1.0016.upstream/2%9.1.0016
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'src/clipboard.c')
-rw-r--r--src/clipboard.c2228
1 files changed, 2228 insertions, 0 deletions
diff --git a/src/clipboard.c b/src/clipboard.c
new file mode 100644
index 0000000..d80699b
--- /dev/null
+++ b/src/clipboard.c
@@ -0,0 +1,2228 @@
+/* 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();
+ 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