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neovim/src/nvim/popupmnu.c

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// This is an open source non-commercial project. Dear PVS-Studio, please check
// it. PVS-Studio Static Code Analyzer for C, C++ and C#: http://www.viva64.com
/// @file popupmnu.c
///
/// Popup menu (PUM)
#include <assert.h>
#include <inttypes.h>
#include <stdbool.h>
#include "nvim/vim.h"
#include "nvim/api/private/helpers.h"
#include "nvim/ascii.h"
#include "nvim/eval/typval.h"
#include "nvim/popupmnu.h"
#include "nvim/charset.h"
#include "nvim/ex_cmds.h"
#include "nvim/memline.h"
#include "nvim/move.h"
#include "nvim/option.h"
#include "nvim/screen.h"
#include "nvim/ui_compositor.h"
#include "nvim/search.h"
#include "nvim/strings.h"
#include "nvim/memory.h"
#include "nvim/window.h"
#include "nvim/edit.h"
#include "nvim/ui.h"
static pumitem_T *pum_array = NULL; // items of displayed pum
static int pum_size; // nr of items in "pum_array"
static int pum_selected; // index of selected item or -1
static int pum_first = 0; // index of top item
static int pum_height; // nr of displayed pum items
static int pum_width; // width of displayed pum items
static int pum_base_width; // width of pum items base
static int pum_kind_width; // width of pum items kind column
static int pum_extra_width; // width of extra stuff
static int pum_scrollbar; // one when scrollbar present, else zero
static bool pum_rl; // true when popupmenu is drawn 'rightleft'
static int pum_anchor_grid; // grid where position is defined
static int pum_row; // top row of pum
static int pum_col; // left column of pum
static bool pum_above; // pum is drawn above cursor line
static bool pum_is_visible = false;
static bool pum_is_drawn = false;
static bool pum_external = false;
static bool pum_invalid = false; // the screen was just cleared
#ifdef INCLUDE_GENERATED_DECLARATIONS
# include "popupmnu.c.generated.h"
#endif
#define PUM_DEF_HEIGHT 10
static void pum_compute_size(void)
{
// Compute the width of the widest match and the widest extra.
pum_base_width = 0;
pum_kind_width = 0;
pum_extra_width = 0;
for (int i = 0; i < pum_size; i++) {
int w = vim_strsize(pum_array[i].pum_text);
if (pum_base_width < w) {
pum_base_width = w;
}
if (pum_array[i].pum_kind != NULL) {
w = vim_strsize(pum_array[i].pum_kind) + 1;
if (pum_kind_width < w) {
pum_kind_width = w;
}
}
if (pum_array[i].pum_extra != NULL) {
w = vim_strsize(pum_array[i].pum_extra) + 1;
if (pum_extra_width < w) {
pum_extra_width = w;
}
}
}
}
/// Show the popup menu with items "array[size]".
/// "array" must remain valid until pum_undisplay() is called!
/// When possible the leftmost character is aligned with cursor column.
/// The menu appears above the screen line "row" or at "row" + "height" - 1.
///
/// @param array
/// @param size
/// @param selected index of initially selected item, none if out of range
/// @param array_changed if true, array contains different items since last call
/// if false, a new item is selected, but the array
/// is the same
/// @param cmd_startcol only for cmdline mode: column of completed match
void pum_display(pumitem_T *array, int size, int selected, bool array_changed,
int cmd_startcol)
{
int context_lines;
int above_row;
int below_row;
int redo_count = 0;
int pum_win_row;
int cursor_col;
if (!pum_is_visible) {
// To keep the code simple, we only allow changing the
// draw mode when the popup menu is not being displayed
pum_external = ui_has(kUIPopupmenu)
|| (State == CMDLINE && ui_has(kUIWildmenu));
}
pum_rl = (curwin->w_p_rl && State != CMDLINE);
do {
// Mark the pum as visible already here,
// to avoid that must_redraw is set when 'cursorcolumn' is on.
pum_is_visible = true;
pum_is_drawn = true;
validate_cursor_col();
above_row = 0;
below_row = cmdline_row;
// wildoptions=pum
if (State == CMDLINE) {
pum_win_row = ui_has(kUICmdline) ? 0 : cmdline_row;
cursor_col = cmd_startcol;
pum_anchor_grid = ui_has(kUICmdline) ? -1 : DEFAULT_GRID_HANDLE;
} else {
// anchor position: the start of the completed word
pum_win_row = curwin->w_wrow;
if (pum_rl) {
cursor_col = curwin->w_width - curwin->w_wcol - 1;
} else {
cursor_col = curwin->w_wcol;
}
pum_anchor_grid = (int)curwin->w_grid.handle;
if (!ui_has(kUIMultigrid)) {
pum_anchor_grid = (int)default_grid.handle;
pum_win_row += curwin->w_winrow;
cursor_col += curwin->w_wincol;
}
}
if (pum_external) {
if (array_changed) {
Array arr = ARRAY_DICT_INIT;
for (int i = 0; i < size; i++) {
Array item = ARRAY_DICT_INIT;
ADD(item, STRING_OBJ(cstr_to_string((char *)array[i].pum_text)));
ADD(item, STRING_OBJ(cstr_to_string((char *)array[i].pum_kind)));
ADD(item, STRING_OBJ(cstr_to_string((char *)array[i].pum_extra)));
ADD(item, STRING_OBJ(cstr_to_string((char *)array[i].pum_info)));
ADD(arr, ARRAY_OBJ(item));
}
ui_call_popupmenu_show(arr, selected, pum_win_row, cursor_col,
pum_anchor_grid);
} else {
ui_call_popupmenu_select(selected);
return;
}
}
int def_width = (int)p_pw;
win_T *pvwin = NULL;
FOR_ALL_WINDOWS_IN_TAB(wp, curtab) {
if (wp->w_p_pvw) {
pvwin = wp;
break;
}
}
if (pvwin != NULL) {
if (pvwin->w_winrow < curwin->w_winrow) {
above_row = pvwin->w_winrow + pvwin->w_height;
} else if (pvwin->w_winrow > curwin->w_winrow + curwin->w_height) {
below_row = pvwin->w_winrow;
}
}
// Figure out the size and position of the pum.
if (size < PUM_DEF_HEIGHT) {
pum_height = size;
} else {
pum_height = PUM_DEF_HEIGHT;
}
if ((p_ph > 0) && (pum_height > p_ph)) {
pum_height = (int)p_ph;
}
// Put the pum below "pum_win_row" if possible.
// If there are few lines decide on where there is more room.
if (pum_win_row + 2 >= below_row - pum_height
&& pum_win_row - above_row > (below_row - above_row) / 2) {
// pum above "pum_win_row"
pum_above = true;
// Leave two lines of context if possible
if (curwin->w_wrow - curwin->w_cline_row >= 2) {
context_lines = 2;
} else {
context_lines = curwin->w_wrow - curwin->w_cline_row;
}
if (pum_win_row >= size + context_lines) {
pum_row = pum_win_row - size - context_lines;
pum_height = size;
} else {
pum_row = 0;
pum_height = pum_win_row - context_lines;
}
if ((p_ph > 0) && (pum_height > p_ph)) {
pum_row += pum_height - (int)p_ph;
pum_height = (int)p_ph;
}
} else {
// pum below "pum_win_row"
pum_above = false;
// Leave two lines of context if possible
if (curwin->w_cline_row + curwin->w_cline_height - curwin->w_wrow >= 3) {
context_lines = 3;
} else {
context_lines = curwin->w_cline_row
+ curwin->w_cline_height - curwin->w_wrow;
}
pum_row = pum_win_row + context_lines;
if (size > below_row - pum_row) {
pum_height = below_row - pum_row;
} else {
pum_height = size;
}
if ((p_ph > 0) && (pum_height > p_ph)) {
pum_height = (int)p_ph;
}
}
// don't display when we only have room for one line
if ((pum_height < 1) || ((pum_height == 1) && (size > 1))) {
return;
}
// If there is a preview window above avoid drawing over it.
if (pvwin != NULL && pum_row < above_row && pum_height > above_row) {
pum_row = above_row;
pum_height = pum_win_row - above_row;
}
if (pum_external) {
return;
}
pum_array = array;
pum_size = size;
pum_compute_size();
int max_width = pum_base_width;
// if there are more items than room we need a scrollbar
if (pum_height < size) {
pum_scrollbar = 1;
max_width++;
} else {
pum_scrollbar = 0;
}
if (def_width < max_width) {
def_width = max_width;
}
if ((((cursor_col < Columns - p_pw) || (cursor_col < Columns - max_width))
&& !pum_rl)
|| (pum_rl && ((cursor_col > p_pw) || (cursor_col > max_width)))) {
// align pum with "cursor_col"
pum_col = cursor_col;
// start with the maximum space available
if (pum_rl) {
pum_width = pum_col - pum_scrollbar + 1;
} else {
assert(Columns - pum_col - pum_scrollbar >= INT_MIN
&& Columns - pum_col - pum_scrollbar <= INT_MAX);
pum_width = (int)(Columns - pum_col - pum_scrollbar);
}
if ((pum_width > max_width + pum_kind_width + pum_extra_width + 1)
&& (pum_width > p_pw)) {
// the width is more than needed for the items, make it
// narrower
pum_width = max_width + pum_kind_width + pum_extra_width + 1;
if (pum_width < p_pw) {
pum_width = (int)p_pw;
}
}
} else if (((cursor_col > p_pw || cursor_col > max_width) && !pum_rl)
|| (pum_rl && (cursor_col < Columns - p_pw
|| cursor_col < Columns - max_width))) {
// align pum edge with "cursor_col"
if (pum_rl && W_ENDCOL(curwin) < max_width + pum_scrollbar + 1) {
pum_col = cursor_col + max_width + pum_scrollbar + 1;
if (pum_col >= Columns) {
pum_col = Columns - 1;
}
} else if (!pum_rl) {
if (curwin->w_wincol > Columns - max_width - pum_scrollbar
&& max_width <= p_pw) {
// use full width to end of the screen
pum_col = cursor_col - max_width - pum_scrollbar;
if (pum_col < 0) {
pum_col = 0;
}
}
}
if (pum_rl) {
pum_width = pum_col - pum_scrollbar + 1;
} else {
pum_width = Columns - pum_col - pum_scrollbar;
}
if (pum_width < p_pw) {
pum_width = (int)p_pw;
if (pum_rl) {
if (pum_width > pum_col) {
pum_width = pum_col;
}
} else {
if (pum_width >= Columns - pum_col) {
pum_width = Columns - pum_col - 1;
}
}
} else if (pum_width > max_width + pum_kind_width + pum_extra_width + 1
&& pum_width > p_pw) {
pum_width = max_width + pum_kind_width + pum_extra_width + 1;
if (pum_width < p_pw) {
pum_width = (int)p_pw;
}
}
} else if (Columns < def_width) {
// not enough room, will use what we have
if (pum_rl) {
assert(Columns - 1 >= INT_MIN);
pum_col = (int)(Columns - 1);
} else {
pum_col = 0;
}
assert(Columns - 1 >= INT_MIN);
pum_width = (int)(Columns - 1);
} else {
if (max_width > p_pw) {
// truncate
max_width = (int)p_pw;
}
if (pum_rl) {
pum_col = max_width - 1;
} else {
assert(Columns - max_width >= INT_MIN
&& Columns - max_width <= INT_MAX);
pum_col = (int)(Columns - max_width);
}
pum_width = max_width - pum_scrollbar;
}
// Set selected item and redraw. If the window size changed need to redo
// the positioning. Limit this to two times, when there is not much
// room the window size will keep changing.
} while (pum_set_selected(selected, redo_count) && (++redo_count <= 2));
}
/// Redraw the popup menu, using "pum_first" and "pum_selected".
void pum_redraw(void)
{
int row = 0;
int col;
int attr_norm = win_hl_attr(curwin, HLF_PNI);
int attr_select = win_hl_attr(curwin, HLF_PSI);
int attr_scroll = win_hl_attr(curwin, HLF_PSB);
int attr_thumb = win_hl_attr(curwin, HLF_PST);
int attr;
int i;
int idx;
char_u *s;
char_u *p = NULL;
int totwidth, width, w;
int thumb_pos = 0;
int thumb_heigth = 1;
int round;
int n;
int grid_width = pum_width;
int col_off = 0;
bool extra_space = false;
if (pum_rl) {
col_off = pum_width;
if (pum_col < curwin->w_wincol + curwin->w_width - 1) {
grid_width += 1;
extra_space = true;
}
} else if (pum_col > 0) {
grid_width += 1;
col_off = 1;
extra_space = true;
}
if (pum_scrollbar > 0) {
grid_width++;
}
grid_assign_handle(&pum_grid);
bool moved = ui_comp_put_grid(&pum_grid, pum_row, pum_col-col_off,
pum_height, grid_width, false, true);
bool invalid_grid = moved || pum_invalid;
pum_invalid = false;
must_redraw_pum = false;
if (!pum_grid.chars
|| pum_grid.Rows != pum_height || pum_grid.Columns != grid_width) {
grid_alloc(&pum_grid, pum_height, grid_width, !invalid_grid, false);
ui_call_grid_resize(pum_grid.handle, pum_grid.Columns, pum_grid.Rows);
} else if (invalid_grid) {
grid_invalidate(&pum_grid);
}
if (ui_has(kUIMultigrid)) {
const char *anchor = pum_above ? "SW" : "NW";
int row_off = pum_above ? pum_height : 0;
ui_call_win_float_pos(pum_grid.handle, -1, cstr_to_string(anchor),
pum_anchor_grid, pum_row-row_off, pum_col-col_off,
false);
}
// Never display more than we have
if (pum_first > pum_size - pum_height) {
pum_first = pum_size - pum_height;
}
if (pum_scrollbar) {
thumb_heigth = pum_height * pum_height / pum_size;
if (thumb_heigth == 0) {
thumb_heigth = 1;
}
thumb_pos = (pum_first * (pum_height - thumb_heigth)
+ (pum_size - pum_height) / 2)
/ (pum_size - pum_height);
}
for (i = 0; i < pum_height; ++i) {
idx = i + pum_first;
attr = (idx == pum_selected) ? attr_select : attr_norm;
grid_puts_line_start(&pum_grid, row);
// prepend a space if there is room
if (extra_space) {
if (pum_rl) {
grid_putchar(&pum_grid, ' ', row, col_off + 1, attr);
} else {
grid_putchar(&pum_grid, ' ', row, col_off - 1, attr);
}
}
// Display each entry, use two spaces for a Tab.
// Do this 3 times: For the main text, kind and extra info
col = col_off;
totwidth = 0;
for (round = 1; round <= 3; ++round) {
width = 0;
s = NULL;
switch (round) {
case 1:
p = pum_array[idx].pum_text;
break;
case 2:
p = pum_array[idx].pum_kind;
break;
case 3:
p = pum_array[idx].pum_extra;
break;
}
if (p != NULL) {
for (;; MB_PTR_ADV(p)) {
if (s == NULL) {
s = p;
}
w = ptr2cells(p);
if ((*p == NUL) || (*p == TAB) || (totwidth + w > pum_width)) {
// Display the text that fits or comes before a Tab.
// First convert it to printable characters.
char_u *st;
char_u saved = *p;
*p = NUL;
st = (char_u *)transstr((const char *)s);
*p = saved;
if (pum_rl) {
char_u *rt = reverse_text(st);
char_u *rt_start = rt;
int size = vim_strsize(rt);
if (size > pum_width) {
do {
size -= utf_ptr2cells(rt);
MB_PTR_ADV(rt);
} while (size > pum_width);
if (size < pum_width) {
// Most left character requires 2-cells but only 1 cell
// is available on screen. Put a '<' on the left of the
// pum item
*(--rt) = '<';
size++;
}
}
grid_puts_len(&pum_grid, rt, (int)STRLEN(rt), row,
col - size + 1, attr);
xfree(rt_start);
xfree(st);
col -= width;
} else {
grid_puts_len(&pum_grid, st, (int)STRLEN(st), row, col, attr);
xfree(st);
col += width;
}
if (*p != TAB) {
break;
}
// Display two spaces for a Tab.
if (pum_rl) {
grid_puts_len(&pum_grid, (char_u *)" ", 2, row, col - 1,
attr);
col -= 2;
} else {
grid_puts_len(&pum_grid, (char_u *)" ", 2, row, col, attr);
col += 2;
}
totwidth += 2;
// start text at next char
s = NULL;
width = 0;
} else {
width += w;
}
}
}
if (round > 1) {
n = pum_kind_width + 1;
} else {
n = 1;
}
// Stop when there is nothing more to display.
if ((round == 3)
|| ((round == 2)
&& (pum_array[idx].pum_extra == NULL))
|| ((round == 1)
&& (pum_array[idx].pum_kind == NULL)
&& (pum_array[idx].pum_extra == NULL))
|| (pum_base_width + n >= pum_width)) {
break;
}
if (pum_rl) {
grid_fill(&pum_grid, row, row + 1, col_off - pum_base_width - n + 1,
col + 1, ' ', ' ', attr);
col = col_off - pum_base_width - n + 1;
} else {
grid_fill(&pum_grid, row, row + 1, col,
col_off + pum_base_width + n, ' ', ' ', attr);
col = col_off + pum_base_width + n;
}
totwidth = pum_base_width + n;
}
if (pum_rl) {
grid_fill(&pum_grid, row, row + 1, col_off - pum_width + 1, col + 1,
' ', ' ', attr);
} else {
grid_fill(&pum_grid, row, row + 1, col, col_off + pum_width, ' ', ' ',
attr);
}
if (pum_scrollbar > 0) {
if (pum_rl) {
grid_putchar(&pum_grid, ' ', row, col_off - pum_width,
i >= thumb_pos && i < thumb_pos + thumb_heigth
? attr_thumb : attr_scroll);
} else {
grid_putchar(&pum_grid, ' ', row, col_off + pum_width,
i >= thumb_pos && i < thumb_pos + thumb_heigth
? attr_thumb : attr_scroll);
}
}
grid_puts_line_flush(false);
row++;
}
}
/// Set the index of the currently selected item. The menu will scroll when
/// necessary. When "n" is out of range don't scroll.
/// This may be repeated when the preview window is used:
/// "repeat" == 0: open preview window normally
/// "repeat" == 1: open preview window but don't set the size
/// "repeat" == 2: don't open preview window
///
/// @param n
/// @param repeat
///
/// @returns TRUE when the window was resized and the location of the popup
/// menu must be recomputed.
static int pum_set_selected(int n, int repeat)
{
int resized = FALSE;
int context = pum_height / 2;
pum_selected = n;
if ((pum_selected >= 0) && (pum_selected < pum_size)) {
if (pum_first > pum_selected - 4) {
// scroll down; when we did a jump it's probably a PageUp then
// scroll a whole page
if (pum_first > pum_selected - 2) {
pum_first -= pum_height - 2;
if (pum_first < 0) {
pum_first = 0;
} else if (pum_first > pum_selected) {
pum_first = pum_selected;
}
} else {
pum_first = pum_selected;
}
} else if (pum_first < pum_selected - pum_height + 5) {
// scroll up; when we did a jump it's probably a PageDown then
// scroll a whole page
if (pum_first < pum_selected - pum_height + 1 + 2) {
pum_first += pum_height - 2;
if (pum_first < pum_selected - pum_height + 1) {
pum_first = pum_selected - pum_height + 1;
}
} else {
pum_first = pum_selected - pum_height + 1;
}
}
// Give a few lines of context when possible.
if (context > 3) {
context = 3;
}
if (pum_height > 2) {
if (pum_first > pum_selected - context) {
// scroll down
pum_first = pum_selected - context;
if (pum_first < 0) {
pum_first = 0;
}
} else if (pum_first < pum_selected + context - pum_height + 1) {
// scroll up
pum_first = pum_selected + context - pum_height + 1;
}
}
// Show extra info in the preview window if there is something and
// 'completeopt' contains "preview".
// Skip this when tried twice already.
// Skip this also when there is not much room.
// NOTE: Be very careful not to sync undo!
if ((pum_array[pum_selected].pum_info != NULL)
&& (Rows > 10)
&& (repeat <= 1)
&& (vim_strchr(p_cot, 'p') != NULL)) {
win_T *curwin_save = curwin;
tabpage_T *curtab_save = curtab;
int res = OK;
// Open a preview window. 3 lines by default. Prefer
// 'previewheight' if set and smaller.
g_do_tagpreview = 3;
if ((p_pvh > 0) && (p_pvh < g_do_tagpreview)) {
g_do_tagpreview = (int)p_pvh;
}
RedrawingDisabled++;
// Prevent undo sync here, if an autocommand syncs undo weird
// things can happen to the undo tree.
no_u_sync++;
resized = prepare_tagpreview(false);
no_u_sync--;
RedrawingDisabled--;
g_do_tagpreview = 0;
if (curwin->w_p_pvw) {
if (!resized
&& (curbuf->b_nwindows == 1)
&& (curbuf->b_fname == NULL)
&& (curbuf->b_p_bt[0] == 'n')
&& (curbuf->b_p_bt[2] == 'f')
&& (curbuf->b_p_bh[0] == 'w')) {
// Already a "wipeout" buffer, make it empty.
while (!BUFEMPTY()) {
ml_delete((linenr_T)1, false);
}
} else {
// Don't want to sync undo in the current buffer.
no_u_sync++;
res = do_ecmd(0, NULL, NULL, NULL, ECMD_ONE, 0, NULL);
no_u_sync--;
if (res == OK) {
// Edit a new, empty buffer. Set options for a "wipeout"
// buffer.
set_option_value("swf", 0L, NULL, OPT_LOCAL);
set_option_value("bt", 0L, "nofile", OPT_LOCAL);
set_option_value("bh", 0L, "wipe", OPT_LOCAL);
set_option_value("diff", 0L, NULL, OPT_LOCAL);
}
}
if (res == OK) {
char_u *p, *e;
linenr_T lnum = 0;
for (p = pum_array[pum_selected].pum_info; *p != NUL;) {
e = vim_strchr(p, '\n');
if (e == NULL) {
ml_append(lnum++, p, 0, false);
break;
} else {
*e = NUL;
ml_append(lnum++, p, (int)(e - p + 1), false);
*e = '\n';
p = e + 1;
}
}
// Increase the height of the preview window to show the
// text, but no more than 'previewheight' lines.
if (repeat == 0) {
if (lnum > p_pvh) {
lnum = p_pvh;
}
if (curwin->w_height < lnum) {
win_setheight((int)lnum);
resized = TRUE;
}
}
curbuf->b_changed = false;
curbuf->b_p_ma = FALSE;
curwin->w_cursor.lnum = 1;
curwin->w_cursor.col = 0;
if ((curwin != curwin_save && win_valid(curwin_save))
|| (curtab != curtab_save && valid_tabpage(curtab_save))) {
if (curtab != curtab_save && valid_tabpage(curtab_save)) {
goto_tabpage_tp(curtab_save, false, false);
}
// When the first completion is done and the preview
// window is not resized, skip the preview window's
// status line redrawing.
if (ins_compl_active() && !resized) {
curwin->w_redr_status = FALSE;
}
// Return cursor to where we were
validate_cursor();
redraw_later(SOME_VALID);
// When the preview window was resized we need to
// update the view on the buffer. Only go back to
// the window when needed, otherwise it will always be
// redraw.
if (resized) {
no_u_sync++;
win_enter(curwin_save, true);
no_u_sync--;
update_topline();
}
// Update the screen before drawing the popup menu.
// Enable updating the status lines.
// TODO(bfredl): can simplify, get rid of the flag munging?
// or at least eliminate extra redraw before win_enter()?
pum_is_visible = false;
update_screen(0);
pum_is_visible = true;
if (!resized && win_valid(curwin_save)) {
no_u_sync++;
win_enter(curwin_save, true);
no_u_sync--;
}
// May need to update the screen again when there are
// autocommands involved.
pum_is_visible = false;
update_screen(0);
pum_is_visible = true;
}
}
}
}
}
if (!resized) {
pum_redraw();
}
return resized;
}
/// Undisplay the popup menu (later).
void pum_undisplay(bool immediate)
{
pum_is_visible = false;
pum_array = NULL;
must_redraw_pum = false;
if (immediate) {
pum_check_clear();
}
}
void pum_check_clear(void)
{
if (!pum_is_visible && pum_is_drawn) {
if (pum_external) {
ui_call_popupmenu_hide();
} else {
ui_comp_remove_grid(&pum_grid);
if (ui_has(kUIMultigrid)) {
ui_call_win_close(pum_grid.handle);
ui_call_grid_destroy(pum_grid.handle);
}
// TODO(bfredl): consider keeping float grids allocated.
grid_free(&pum_grid);
}
pum_is_drawn = false;
}
}
/// Clear the popup menu. Currently only resets the offset to the first
/// displayed item.
void pum_clear(void)
{
pum_first = 0;
}
/// @return true if the popup menu is displayed.
bool pum_visible(void)
{
return pum_is_visible;
}
/// @return true if the popup menu is displayed and drawn on the grid.
bool pum_drawn(void)
{
return pum_visible() && !pum_external;
}
/// Screen was cleared, need to redraw next time
void pum_invalidate(void)
{
pum_invalid = true;
}
void pum_recompose(void)
{
ui_comp_compose_grid(&pum_grid);
}
/// Gets the height of the menu.
///
/// @return the height of the popup menu, the number of entries visible.
/// Only valid when pum_visible() returns TRUE!
int pum_get_height(void)
{
if (pum_external) {
int ui_pum_height = ui_pum_get_height();
if (ui_pum_height) {
return ui_pum_height;
}
}
return pum_height;
}
/// Add size information about the pum to "dict".
void pum_set_event_info(dict_T *dict)
{
if (!pum_visible()) {
return;
}
tv_dict_add_nr(dict, S_LEN("height"), pum_height);
tv_dict_add_nr(dict, S_LEN("width"), pum_width);
tv_dict_add_nr(dict, S_LEN("row"), pum_row);
tv_dict_add_nr(dict, S_LEN("col"), pum_col);
tv_dict_add_nr(dict, S_LEN("size"), pum_size);
tv_dict_add_special(dict, S_LEN("scrollbar"),
pum_scrollbar ? kSpecialVarTrue : kSpecialVarFalse);
}
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