Mercurial > vim
annotate src/popupmnu.c @ 10883:cb71a5468aca v8.0.0331
patch 8.0.0331: restoring help snapshot accesses freed memory
commit https://github.com/vim/vim/commit/343b8c042967da82f2f022afa31f2c97a264c1c8
Author: Bram Moolenaar <Bram@vim.org>
Date: Fri Feb 17 12:04:56 2017 +0100
patch 8.0.0331: restoring help snapshot accesses freed memory
Problem: Restoring help snapshot accesses freed memory. (Dominique Pelle)
Solution: Don't restore a snapshot when the window closes.
| author | Christian Brabandt <cb@256bit.org> |
|---|---|
| date | Fri, 17 Feb 2017 12:15:05 +0100 |
| parents | 783a75eca83a |
| children | 778c10516955 |
| rev | line source |
|---|---|
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commit https://github.com/vim/vim/commit/edf3f97ae2af024708ebb4ac614227327033ca47
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1 /* vi:set ts=8 sts=4 sw=4 noet: |
| 800 | 2 * |
| 3 * VIM - Vi IMproved by Bram Moolenaar | |
| 4 * | |
| 5 * Do ":help uganda" in Vim to read copying and usage conditions. | |
| 6 * Do ":help credits" in Vim to see a list of people who contributed. | |
| 7 * See README.txt for an overview of the Vim source code. | |
| 8 */ | |
| 9 | |
| 10 /* | |
| 11 * popupmnu.c: Popup menu (PUM) | |
| 12 */ | |
| 13 #include "vim.h" | |
| 14 | |
| 15 #if defined(FEAT_INS_EXPAND) || defined(PROTO) | |
| 16 | |
| 17 static pumitem_T *pum_array = NULL; /* items of displayed pum */ | |
| 18 static int pum_size; /* nr of items in "pum_array" */ | |
| 19 static int pum_selected; /* index of selected item or -1 */ | |
| 20 static int pum_first = 0; /* index of top item */ | |
| 21 | |
| 22 static int pum_height; /* nr of displayed pum items */ | |
| 23 static int pum_width; /* width of displayed pum items */ | |
| 24 static int pum_base_width; /* width of pum items base */ | |
| 25 static int pum_kind_width; /* width of pum items kind column */ | |
| 26 static int pum_scrollbar; /* TRUE when scrollbar present */ | |
| 27 | |
| 28 static int pum_row; /* top row of pum */ | |
| 29 static int pum_col; /* left column of pum */ | |
| 30 | |
| 31 static int pum_do_redraw = FALSE; /* do redraw anyway */ | |
| 32 | |
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commit https://github.com/vim/vim/commit/baaa7e9ec7398a813e21285c272fa99792642077
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33 static int pum_set_selected(int n, int repeat); |
| 800 | 34 |
| 35 #define PUM_DEF_HEIGHT 10 | |
| 36 #define PUM_DEF_WIDTH 15 | |
| 37 | |
| 38 /* | |
| 39 * Show the popup menu with items "array[size]". | |
| 40 * "array" must remain valid until pum_undisplay() is called! | |
| 41 * When possible the leftmost character is aligned with screen column "col". | |
| 42 * The menu appears above the screen line "row" or at "row" + "height" - 1. | |
| 43 */ | |
| 44 void | |
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commit https://github.com/vim/vim/commit/055409764ca5f7978d4c399d2c440af0ce971c4f
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45 pum_display( |
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46 pumitem_T *array, |
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47 int size, |
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48 int selected) /* index of initially selected item, none if |
| 800 | 49 out of range */ |
| 50 { | |
| 51 int w; | |
| 52 int def_width; | |
| 53 int max_width; | |
| 54 int kind_width; | |
| 55 int extra_width; | |
| 56 int i; | |
| 57 int row; | |
| 1622 | 58 int context_lines; |
| 800 | 59 int col; |
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60 int above_row; |
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61 int below_row; |
| 838 | 62 int redo_count = 0; |
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63 #if defined(FEAT_WINDOWS) && defined(FEAT_QUICKFIX) |
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64 win_T *pvwin; |
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65 #endif |
| 800 | 66 |
| 67 redo: | |
| 68 def_width = PUM_DEF_WIDTH; | |
| 69 max_width = 0; | |
| 70 kind_width = 0; | |
| 71 extra_width = 0; | |
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72 above_row = 0; |
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73 below_row = cmdline_row; |
| 800 | 74 |
| 75 /* Pretend the pum is already there to avoid that must_redraw is set when | |
| 76 * 'cuc' is on. */ | |
| 77 pum_array = (pumitem_T *)1; | |
| 78 validate_cursor_col(); | |
| 79 pum_array = NULL; | |
| 80 | |
| 1622 | 81 row = curwin->w_wrow + W_WINROW(curwin); |
| 800 | 82 |
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83 #if defined(FEAT_WINDOWS) && defined(FEAT_QUICKFIX) |
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84 FOR_ALL_WINDOWS(pvwin) |
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commit https://github.com/vim/vim/commit/91e44a3305ef6bf2d43496c351dcff0a45c6bfb8
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85 if (pvwin->w_p_pvw) |
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86 break; |
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87 if (pvwin != NULL) |
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commit https://github.com/vim/vim/commit/91e44a3305ef6bf2d43496c351dcff0a45c6bfb8
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88 { |
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89 if (W_WINROW(pvwin) < W_WINROW(curwin)) |
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commit https://github.com/vim/vim/commit/91e44a3305ef6bf2d43496c351dcff0a45c6bfb8
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90 above_row = W_WINROW(pvwin) + pvwin->w_height; |
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commit https://github.com/vim/vim/commit/91e44a3305ef6bf2d43496c351dcff0a45c6bfb8
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91 else if (W_WINROW(pvwin) > W_WINROW(curwin) + curwin->w_height) |
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commit https://github.com/vim/vim/commit/91e44a3305ef6bf2d43496c351dcff0a45c6bfb8
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92 below_row = W_WINROW(pvwin); |
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93 } |
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94 #endif |
| 800 | 95 |
| 96 /* | |
| 97 * Figure out the size and position of the pum. | |
| 98 */ | |
| 99 if (size < PUM_DEF_HEIGHT) | |
| 100 pum_height = size; | |
| 101 else | |
| 102 pum_height = PUM_DEF_HEIGHT; | |
| 103 if (p_ph > 0 && pum_height > p_ph) | |
| 104 pum_height = p_ph; | |
| 105 | |
| 106 /* Put the pum below "row" if possible. If there are few lines decide on | |
| 107 * where there is more room. */ | |
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108 if (row + 2 >= below_row - pum_height |
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109 && row - above_row > (below_row - above_row) / 2) |
| 800 | 110 { |
| 111 /* pum above "row" */ | |
| 1622 | 112 |
| 113 /* Leave two lines of context if possible */ | |
| 114 if (curwin->w_wrow - curwin->w_cline_row >= 2) | |
| 115 context_lines = 2; | |
| 116 else | |
| 117 context_lines = curwin->w_wrow - curwin->w_cline_row; | |
| 118 | |
| 119 if (row >= size + context_lines) | |
| 800 | 120 { |
| 1622 | 121 pum_row = row - size - context_lines; |
| 800 | 122 pum_height = size; |
| 123 } | |
| 124 else | |
| 125 { | |
| 126 pum_row = 0; | |
| 1622 | 127 pum_height = row - context_lines; |
| 800 | 128 } |
| 129 if (p_ph > 0 && pum_height > p_ph) | |
| 130 { | |
| 131 pum_row += pum_height - p_ph; | |
| 132 pum_height = p_ph; | |
| 133 } | |
| 134 } | |
| 135 else | |
| 136 { | |
| 137 /* pum below "row" */ | |
| 1622 | 138 |
| 139 /* Leave two lines of context if possible */ | |
| 140 if (curwin->w_cline_row + curwin->w_cline_height - curwin->w_wrow >= 3) | |
| 141 context_lines = 3; | |
| 142 else | |
| 143 context_lines = curwin->w_cline_row | |
| 144 + curwin->w_cline_height - curwin->w_wrow; | |
| 145 | |
| 146 pum_row = row + context_lines; | |
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147 if (size > below_row - pum_row) |
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148 pum_height = below_row - pum_row; |
| 800 | 149 else |
| 150 pum_height = size; | |
| 151 if (p_ph > 0 && pum_height > p_ph) | |
| 152 pum_height = p_ph; | |
| 153 } | |
| 154 | |
| 155 /* don't display when we only have room for one line */ | |
| 156 if (pum_height < 1 || (pum_height == 1 && size > 1)) | |
| 157 return; | |
| 158 | |
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159 #if defined(FEAT_WINDOWS) && defined(FEAT_QUICKFIX) |
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160 /* If there is a preview window at the above avoid drawing over it. */ |
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161 if (pvwin != NULL && pum_row < above_row && pum_height > above_row) |
| 800 | 162 { |
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163 pum_row += above_row; |
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164 pum_height -= above_row; |
| 800 | 165 } |
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166 #endif |
| 800 | 167 |
| 168 /* Compute the width of the widest match and the widest extra. */ | |
| 169 for (i = 0; i < size; ++i) | |
| 170 { | |
| 171 w = vim_strsize(array[i].pum_text); | |
| 172 if (max_width < w) | |
| 173 max_width = w; | |
| 174 if (array[i].pum_kind != NULL) | |
| 175 { | |
| 176 w = vim_strsize(array[i].pum_kind) + 1; | |
| 177 if (kind_width < w) | |
| 178 kind_width = w; | |
| 179 } | |
| 180 if (array[i].pum_extra != NULL) | |
| 181 { | |
| 182 w = vim_strsize(array[i].pum_extra) + 1; | |
| 183 if (extra_width < w) | |
| 184 extra_width = w; | |
| 185 } | |
| 186 } | |
| 187 pum_base_width = max_width; | |
| 188 pum_kind_width = kind_width; | |
| 189 | |
| 1344 | 190 /* Calculate column */ |
| 191 #ifdef FEAT_RIGHTLEFT | |
| 192 if (curwin->w_p_rl) | |
| 1668 | 193 col = W_WINCOL(curwin) + W_WIDTH(curwin) - curwin->w_wcol - 1; |
| 1344 | 194 else |
| 195 #endif | |
| 1668 | 196 col = W_WINCOL(curwin) + curwin->w_wcol; |
| 1344 | 197 |
| 800 | 198 /* if there are more items than room we need a scrollbar */ |
| 199 if (pum_height < size) | |
| 200 { | |
| 201 pum_scrollbar = 1; | |
| 202 ++max_width; | |
| 203 } | |
| 204 else | |
| 205 pum_scrollbar = 0; | |
| 206 | |
| 207 if (def_width < max_width) | |
| 208 def_width = max_width; | |
| 209 | |
| 1344 | 210 if (((col < Columns - PUM_DEF_WIDTH || col < Columns - max_width) |
| 211 #ifdef FEAT_RIGHTLEFT | |
| 212 && !curwin->w_p_rl) | |
| 213 || (curwin->w_p_rl && (col > PUM_DEF_WIDTH || col > max_width) | |
| 214 #endif | |
| 215 )) | |
| 800 | 216 { |
| 217 /* align pum column with "col" */ | |
| 218 pum_col = col; | |
| 1344 | 219 |
| 220 #ifdef FEAT_RIGHTLEFT | |
| 221 if (curwin->w_p_rl) | |
| 222 pum_width = pum_col - pum_scrollbar + 1; | |
| 223 else | |
| 224 #endif | |
| 225 pum_width = Columns - pum_col - pum_scrollbar; | |
| 226 | |
| 800 | 227 if (pum_width > max_width + kind_width + extra_width + 1 |
| 228 && pum_width > PUM_DEF_WIDTH) | |
| 229 { | |
| 230 pum_width = max_width + kind_width + extra_width + 1; | |
| 231 if (pum_width < PUM_DEF_WIDTH) | |
| 232 pum_width = PUM_DEF_WIDTH; | |
| 233 } | |
| 234 } | |
| 235 else if (Columns < def_width) | |
| 236 { | |
| 237 /* not enough room, will use what we have */ | |
| 1344 | 238 #ifdef FEAT_RIGHTLEFT |
| 239 if (curwin->w_p_rl) | |
| 240 pum_col = Columns - 1; | |
| 241 else | |
| 242 #endif | |
| 243 pum_col = 0; | |
| 800 | 244 pum_width = Columns - 1; |
| 245 } | |
| 246 else | |
| 247 { | |
| 248 if (max_width > PUM_DEF_WIDTH) | |
| 249 max_width = PUM_DEF_WIDTH; /* truncate */ | |
| 1344 | 250 #ifdef FEAT_RIGHTLEFT |
| 251 if (curwin->w_p_rl) | |
| 252 pum_col = max_width - 1; | |
| 253 else | |
| 254 #endif | |
| 255 pum_col = Columns - max_width; | |
| 800 | 256 pum_width = max_width - pum_scrollbar; |
| 257 } | |
| 258 | |
| 259 pum_array = array; | |
| 260 pum_size = size; | |
| 261 | |
| 262 /* Set selected item and redraw. If the window size changed need to redo | |
| 838 | 263 * the positioning. Limit this to two times, when there is not much |
| 264 * room the window size will keep changing. */ | |
| 265 if (pum_set_selected(selected, redo_count) && ++redo_count <= 2) | |
| 800 | 266 goto redo; |
| 267 } | |
| 268 | |
| 269 /* | |
| 270 * Redraw the popup menu, using "pum_first" and "pum_selected". | |
| 271 */ | |
| 272 void | |
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273 pum_redraw(void) |
| 800 | 274 { |
| 275 int row = pum_row; | |
| 276 int col; | |
| 277 int attr_norm = highlight_attr[HLF_PNI]; | |
| 278 int attr_select = highlight_attr[HLF_PSI]; | |
| 279 int attr_scroll = highlight_attr[HLF_PSB]; | |
| 280 int attr_thumb = highlight_attr[HLF_PST]; | |
| 281 int attr; | |
| 282 int i; | |
| 283 int idx; | |
| 284 char_u *s; | |
| 285 char_u *p = NULL; | |
| 286 int totwidth, width, w; | |
| 287 int thumb_pos = 0; | |
| 288 int thumb_heigth = 1; | |
| 289 int round; | |
| 290 int n; | |
| 291 | |
| 5444 | 292 /* Never display more than we have */ |
| 293 if (pum_first > pum_size - pum_height) | |
| 294 pum_first = pum_size - pum_height; | |
| 295 | |
| 800 | 296 if (pum_scrollbar) |
| 297 { | |
| 298 thumb_heigth = pum_height * pum_height / pum_size; | |
| 299 if (thumb_heigth == 0) | |
| 300 thumb_heigth = 1; | |
| 301 thumb_pos = (pum_first * (pum_height - thumb_heigth) | |
| 302 + (pum_size - pum_height) / 2) | |
| 303 / (pum_size - pum_height); | |
| 304 } | |
| 305 | |
| 306 for (i = 0; i < pum_height; ++i) | |
| 307 { | |
| 308 idx = i + pum_first; | |
| 309 attr = (idx == pum_selected) ? attr_select : attr_norm; | |
| 310 | |
| 311 /* prepend a space if there is room */ | |
| 1344 | 312 #ifdef FEAT_RIGHTLEFT |
| 313 if (curwin->w_p_rl) | |
| 314 { | |
| 315 if (pum_col < W_WINCOL(curwin) + W_WIDTH(curwin) - 1) | |
| 316 screen_putchar(' ', row, pum_col + 1, attr); | |
| 317 } | |
| 318 else | |
| 319 #endif | |
| 320 if (pum_col > 0) | |
| 321 screen_putchar(' ', row, pum_col - 1, attr); | |
| 800 | 322 |
| 323 /* Display each entry, use two spaces for a Tab. | |
| 324 * Do this 3 times: For the main text, kind and extra info */ | |
| 325 col = pum_col; | |
| 326 totwidth = 0; | |
| 327 for (round = 1; round <= 3; ++round) | |
| 328 { | |
| 329 width = 0; | |
| 330 s = NULL; | |
| 331 switch (round) | |
| 332 { | |
| 333 case 1: p = pum_array[idx].pum_text; break; | |
| 334 case 2: p = pum_array[idx].pum_kind; break; | |
| 335 case 3: p = pum_array[idx].pum_extra; break; | |
| 336 } | |
| 337 if (p != NULL) | |
| 338 for ( ; ; mb_ptr_adv(p)) | |
| 339 { | |
| 340 if (s == NULL) | |
| 341 s = p; | |
| 342 w = ptr2cells(p); | |
| 343 if (*p == NUL || *p == TAB || totwidth + w > pum_width) | |
| 344 { | |
| 1097 | 345 /* Display the text that fits or comes before a Tab. |
| 346 * First convert it to printable characters. */ | |
| 1344 | 347 char_u *st; |
| 348 int saved = *p; | |
| 1097 | 349 |
| 350 *p = NUL; | |
| 351 st = transstr(s); | |
| 352 *p = saved; | |
| 1344 | 353 #ifdef FEAT_RIGHTLEFT |
| 354 if (curwin->w_p_rl) | |
| 1097 | 355 { |
| 1344 | 356 if (st != NULL) |
| 357 { | |
| 358 char_u *rt = reverse_text(st); | |
| 359 | |
| 360 if (rt != NULL) | |
| 361 { | |
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362 char_u *rt_start = rt; |
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363 int size; |
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364 |
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365 size = vim_strsize(rt); |
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366 if (size > pum_width) |
| 1344 | 367 { |
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368 do |
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369 { |
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370 size -= has_mbyte |
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371 ? (*mb_ptr2cells)(rt) : 1; |
| 1344 | 372 mb_ptr_adv(rt); |
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373 } while (size > pum_width); |
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374 |
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375 if (size < pum_width) |
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376 { |
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377 /* Most left character requires |
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378 * 2-cells but only 1 cell is |
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379 * available on screen. Put a |
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380 * '<' on the left of the pum |
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381 * item */ |
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382 *(--rt) = '<'; |
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383 size++; |
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384 } |
| 1344 | 385 } |
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386 screen_puts_len(rt, (int)STRLEN(rt), |
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387 row, col - size + 1, attr); |
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388 vim_free(rt_start); |
| 1344 | 389 } |
| 390 vim_free(st); | |
| 391 } | |
| 392 col -= width; | |
| 393 } | |
| 394 else | |
| 395 #endif | |
| 396 { | |
| 397 if (st != NULL) | |
| 398 { | |
| 399 screen_puts_len(st, (int)STRLEN(st), row, col, | |
| 1097 | 400 attr); |
| 1344 | 401 vim_free(st); |
| 402 } | |
| 403 col += width; | |
| 1097 | 404 } |
| 800 | 405 |
| 406 if (*p != TAB) | |
| 407 break; | |
| 408 | |
| 409 /* Display two spaces for a Tab. */ | |
| 1344 | 410 #ifdef FEAT_RIGHTLEFT |
| 411 if (curwin->w_p_rl) | |
| 412 { | |
| 413 screen_puts_len((char_u *)" ", 2, row, col - 1, | |
| 414 attr); | |
| 415 col -= 2; | |
| 416 } | |
| 417 else | |
| 418 #endif | |
| 419 { | |
| 420 screen_puts_len((char_u *)" ", 2, row, col, attr); | |
| 421 col += 2; | |
| 422 } | |
| 800 | 423 totwidth += 2; |
| 424 s = NULL; /* start text at next char */ | |
| 425 width = 0; | |
| 426 } | |
| 427 else | |
| 428 width += w; | |
| 429 } | |
| 430 | |
| 431 if (round > 1) | |
| 432 n = pum_kind_width + 1; | |
| 433 else | |
| 434 n = 1; | |
| 435 | |
| 436 /* Stop when there is nothing more to display. */ | |
| 437 if (round == 3 | |
| 438 || (round == 2 && pum_array[idx].pum_extra == NULL) | |
| 439 || (round == 1 && pum_array[idx].pum_kind == NULL | |
| 440 && pum_array[idx].pum_extra == NULL) | |
| 441 || pum_base_width + n >= pum_width) | |
| 442 break; | |
| 1344 | 443 #ifdef FEAT_RIGHTLEFT |
| 444 if (curwin->w_p_rl) | |
| 445 { | |
| 446 screen_fill(row, row + 1, pum_col - pum_base_width - n + 1, | |
| 447 col + 1, ' ', ' ', attr); | |
| 448 col = pum_col - pum_base_width - n + 1; | |
| 449 } | |
| 450 else | |
| 451 #endif | |
| 452 { | |
| 453 screen_fill(row, row + 1, col, pum_col + pum_base_width + n, | |
| 800 | 454 ' ', ' ', attr); |
| 1344 | 455 col = pum_col + pum_base_width + n; |
| 456 } | |
| 800 | 457 totwidth = pum_base_width + n; |
| 458 } | |
| 459 | |
| 1344 | 460 #ifdef FEAT_RIGHTLEFT |
| 461 if (curwin->w_p_rl) | |
| 462 screen_fill(row, row + 1, pum_col - pum_width + 1, col + 1, ' ', | |
| 463 ' ', attr); | |
| 464 else | |
| 465 #endif | |
| 466 screen_fill(row, row + 1, col, pum_col + pum_width, ' ', ' ', | |
| 467 attr); | |
| 800 | 468 if (pum_scrollbar > 0) |
| 1344 | 469 { |
| 470 #ifdef FEAT_RIGHTLEFT | |
| 471 if (curwin->w_p_rl) | |
| 472 screen_putchar(' ', row, pum_col - pum_width, | |
| 473 i >= thumb_pos && i < thumb_pos + thumb_heigth | |
| 800 | 474 ? attr_thumb : attr_scroll); |
| 1344 | 475 else |
| 476 #endif | |
| 477 screen_putchar(' ', row, pum_col + pum_width, | |
| 478 i >= thumb_pos && i < thumb_pos + thumb_heigth | |
| 479 ? attr_thumb : attr_scroll); | |
| 480 } | |
| 800 | 481 |
| 482 ++row; | |
| 483 } | |
| 484 } | |
| 485 | |
| 486 /* | |
| 487 * Set the index of the currently selected item. The menu will scroll when | |
| 488 * necessary. When "n" is out of range don't scroll. | |
| 838 | 489 * This may be repeated when the preview window is used: |
| 490 * "repeat" == 0: open preview window normally | |
| 491 * "repeat" == 1: open preview window but don't set the size | |
| 492 * "repeat" == 2: don't open preview window | |
| 800 | 493 * Returns TRUE when the window was resized and the location of the popup menu |
| 494 * must be recomputed. | |
| 495 */ | |
| 496 static int | |
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497 pum_set_selected(int n, int repeat) |
| 800 | 498 { |
| 499 int resized = FALSE; | |
| 500 int context = pum_height / 2; | |
| 501 | |
| 502 pum_selected = n; | |
| 503 | |
| 504 if (pum_selected >= 0 && pum_selected < pum_size) | |
| 505 { | |
| 506 if (pum_first > pum_selected - 4) | |
| 507 { | |
| 508 /* scroll down; when we did a jump it's probably a PageUp then | |
| 509 * scroll a whole page */ | |
| 510 if (pum_first > pum_selected - 2) | |
| 511 { | |
| 512 pum_first -= pum_height - 2; | |
| 513 if (pum_first < 0) | |
| 514 pum_first = 0; | |
| 515 else if (pum_first > pum_selected) | |
| 516 pum_first = pum_selected; | |
| 517 } | |
| 518 else | |
| 519 pum_first = pum_selected; | |
| 520 } | |
| 521 else if (pum_first < pum_selected - pum_height + 5) | |
| 522 { | |
| 523 /* scroll up; when we did a jump it's probably a PageDown then | |
| 524 * scroll a whole page */ | |
| 525 if (pum_first < pum_selected - pum_height + 1 + 2) | |
| 526 { | |
| 527 pum_first += pum_height - 2; | |
| 528 if (pum_first < pum_selected - pum_height + 1) | |
| 529 pum_first = pum_selected - pum_height + 1; | |
| 530 } | |
| 531 else | |
| 532 pum_first = pum_selected - pum_height + 1; | |
| 533 } | |
| 534 | |
| 535 /* Give a few lines of context when possible. */ | |
| 536 if (context > 3) | |
| 537 context = 3; | |
| 538 if (pum_height > 2) | |
| 539 { | |
| 540 if (pum_first > pum_selected - context) | |
| 541 { | |
| 542 /* scroll down */ | |
| 543 pum_first = pum_selected - context; | |
| 544 if (pum_first < 0) | |
| 545 pum_first = 0; | |
| 546 } | |
| 547 else if (pum_first < pum_selected + context - pum_height + 1) | |
| 548 { | |
| 549 /* scroll up */ | |
| 550 pum_first = pum_selected + context - pum_height + 1; | |
| 551 } | |
| 552 } | |
| 553 | |
| 554 #if defined(FEAT_WINDOWS) && defined(FEAT_QUICKFIX) | |
| 816 | 555 /* |
| 556 * Show extra info in the preview window if there is something and | |
| 557 * 'completeopt' contains "preview". | |
| 838 | 558 * Skip this when tried twice already. |
| 559 * Skip this also when there is not much room. | |
| 816 | 560 * NOTE: Be very careful not to sync undo! |
| 561 */ | |
| 800 | 562 if (pum_array[pum_selected].pum_info != NULL |
| 838 | 563 && Rows > 10 |
| 564 && repeat <= 1 | |
| 565 && vim_strchr(p_cot, 'p') != NULL) | |
| 800 | 566 { |
| 567 win_T *curwin_save = curwin; | |
| 568 int res = OK; | |
| 569 | |
| 2622 | 570 /* Open a preview window. 3 lines by default. Prefer |
| 571 * 'previewheight' if set and smaller. */ | |
| 800 | 572 g_do_tagpreview = 3; |
| 2622 | 573 if (p_pvh > 0 && p_pvh < g_do_tagpreview) |
| 574 g_do_tagpreview = p_pvh; | |
| 6043 | 575 ++RedrawingDisabled; |
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576 /* Prevent undo sync here, if an autocommand syncs undo weird |
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577 * things can happen to the undo tree. */ |
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578 ++no_u_sync; |
| 816 | 579 resized = prepare_tagpreview(FALSE); |
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580 --no_u_sync; |
| 6043 | 581 --RedrawingDisabled; |
| 800 | 582 g_do_tagpreview = 0; |
| 583 | |
| 584 if (curwin->w_p_pvw) | |
| 585 { | |
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586 if (!resized |
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587 && curbuf->b_nwindows == 1 |
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588 && curbuf->b_fname == NULL |
| 800 | 589 && curbuf->b_p_bt[0] == 'n' && curbuf->b_p_bt[2] == 'f' |
| 590 && curbuf->b_p_bh[0] == 'w') | |
| 591 { | |
| 592 /* Already a "wipeout" buffer, make it empty. */ | |
| 593 while (!bufempty()) | |
| 594 ml_delete((linenr_T)1, FALSE); | |
| 595 } | |
| 825 | 596 else |
| 800 | 597 { |
| 825 | 598 /* Don't want to sync undo in the current buffer. */ |
| 599 ++no_u_sync; | |
| 1743 | 600 res = do_ecmd(0, NULL, NULL, NULL, ECMD_ONE, 0, NULL); |
| 825 | 601 --no_u_sync; |
| 602 if (res == OK) | |
| 603 { | |
| 604 /* Edit a new, empty buffer. Set options for a "wipeout" | |
| 605 * buffer. */ | |
| 606 set_option_value((char_u *)"swf", 0L, NULL, OPT_LOCAL); | |
| 607 set_option_value((char_u *)"bt", 0L, | |
| 608 (char_u *)"nofile", OPT_LOCAL); | |
| 609 set_option_value((char_u *)"bh", 0L, | |
| 610 (char_u *)"wipe", OPT_LOCAL); | |
| 611 set_option_value((char_u *)"diff", 0L, | |
| 1302 | 612 NULL, OPT_LOCAL); |
| 825 | 613 } |
| 800 | 614 } |
| 615 if (res == OK) | |
| 616 { | |
| 617 char_u *p, *e; | |
| 618 linenr_T lnum = 0; | |
| 619 | |
| 620 for (p = pum_array[pum_selected].pum_info; *p != NUL; ) | |
| 621 { | |
| 622 e = vim_strchr(p, '\n'); | |
| 623 if (e == NULL) | |
| 624 { | |
| 625 ml_append(lnum++, p, 0, FALSE); | |
| 626 break; | |
| 627 } | |
| 628 else | |
| 629 { | |
| 630 *e = NUL; | |
| 835 | 631 ml_append(lnum++, p, (int)(e - p + 1), FALSE); |
| 800 | 632 *e = '\n'; |
| 633 p = e + 1; | |
| 634 } | |
| 635 } | |
| 636 | |
| 637 /* Increase the height of the preview window to show the | |
| 638 * text, but no more than 'previewheight' lines. */ | |
| 838 | 639 if (repeat == 0) |
| 800 | 640 { |
| 838 | 641 if (lnum > p_pvh) |
| 642 lnum = p_pvh; | |
| 643 if (curwin->w_height < lnum) | |
| 644 { | |
| 645 win_setheight((int)lnum); | |
| 646 resized = TRUE; | |
| 647 } | |
| 800 | 648 } |
| 649 | |
| 650 curbuf->b_changed = 0; | |
| 651 curbuf->b_p_ma = FALSE; | |
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652 curwin->w_cursor.lnum = 1; |
| 800 | 653 curwin->w_cursor.col = 0; |
| 654 | |
| 655 if (curwin != curwin_save && win_valid(curwin_save)) | |
| 656 { | |
| 6089 | 657 /* When the first completion is done and the preview |
| 658 * window is not resized, skip the preview window's | |
| 659 * status line redrawing. */ | |
| 660 if (ins_compl_active() && !resized) | |
| 661 curwin->w_redr_status = FALSE; | |
| 662 | |
| 800 | 663 /* Return cursor to where we were */ |
| 664 validate_cursor(); | |
| 665 redraw_later(SOME_VALID); | |
| 666 | |
| 667 /* When the preview window was resized we need to | |
| 668 * update the view on the buffer. Only go back to | |
| 669 * the window when needed, otherwise it will always be | |
| 670 * redraw. */ | |
| 671 if (resized) | |
| 672 { | |
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673 ++no_u_sync; |
| 800 | 674 win_enter(curwin_save, TRUE); |
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675 --no_u_sync; |
| 800 | 676 update_topline(); |
| 677 } | |
| 678 | |
| 679 /* Update the screen before drawing the popup menu. | |
| 680 * Enable updating the status lines. */ | |
| 681 pum_do_redraw = TRUE; | |
| 682 update_screen(0); | |
| 683 pum_do_redraw = FALSE; | |
| 684 | |
| 816 | 685 if (!resized && win_valid(curwin_save)) |
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686 { |
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687 ++no_u_sync; |
| 800 | 688 win_enter(curwin_save, TRUE); |
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689 --no_u_sync; |
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690 } |
| 800 | 691 |
| 692 /* May need to update the screen again when there are | |
| 693 * autocommands involved. */ | |
| 694 pum_do_redraw = TRUE; | |
| 695 update_screen(0); | |
| 696 pum_do_redraw = FALSE; | |
| 697 } | |
| 698 } | |
| 699 } | |
| 700 } | |
| 701 #endif | |
| 702 } | |
| 703 | |
| 704 if (!resized) | |
| 705 pum_redraw(); | |
| 706 | |
| 707 return resized; | |
| 708 } | |
| 709 | |
| 710 /* | |
| 711 * Undisplay the popup menu (later). | |
| 712 */ | |
| 713 void | |
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714 pum_undisplay(void) |
| 800 | 715 { |
| 716 pum_array = NULL; | |
| 717 redraw_all_later(SOME_VALID); | |
| 940 | 718 #ifdef FEAT_WINDOWS |
| 719 redraw_tabline = TRUE; | |
| 720 #endif | |
| 800 | 721 status_redraw_all(); |
| 722 } | |
| 723 | |
| 724 /* | |
| 725 * Clear the popup menu. Currently only resets the offset to the first | |
| 726 * displayed item. | |
| 727 */ | |
| 728 void | |
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729 pum_clear(void) |
| 800 | 730 { |
| 731 pum_first = 0; | |
| 732 } | |
| 733 | |
| 734 /* | |
| 735 * Return TRUE if the popup menu is displayed. | |
| 736 * Overruled when "pum_do_redraw" is set, used to redraw the status lines. | |
| 737 */ | |
| 738 int | |
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c079097365f3
commit https://github.com/vim/vim/commit/055409764ca5f7978d4c399d2c440af0ce971c4f
Christian Brabandt <cb@256bit.org>
parents:
7805
diff
changeset
|
739 pum_visible(void) |
| 800 | 740 { |
| 741 return !pum_do_redraw && pum_array != NULL; | |
| 742 } | |
| 743 | |
| 744 /* | |
| 745 * Return the height of the popup menu, the number of entries visible. | |
| 746 * Only valid when pum_visible() returns TRUE! | |
| 747 */ | |
| 748 int | |
|
7833
c079097365f3
commit https://github.com/vim/vim/commit/055409764ca5f7978d4c399d2c440af0ce971c4f
Christian Brabandt <cb@256bit.org>
parents:
7805
diff
changeset
|
749 pum_get_height(void) |
| 800 | 750 { |
| 751 return pum_height; | |
| 752 } | |
| 753 | |
| 754 #endif |