|
| 1 | +/* vi:set ts=8 sts=4 sw=4 noet: |
| 2 | + * |
| 3 | + * VIM - Vi IMproved by Bram Moolenaar |
| 4 | + * Visual Workshop integration by Gordon Prieur |
| 5 | + * |
| 6 | + * Do ":help uganda" in Vim to read copying and usage conditions. |
| 7 | + * Do ":help credits" in Vim to see a list of people who contributed. |
| 8 | + * See README.txt for an overview of the Vim source code. |
| 9 | + */ |
| 10 | + |
| 11 | +#include "vim.h" |
| 12 | + |
| 13 | +#if defined(FEAT_BEVAL) || defined(PROTO) |
| 14 | + |
| 15 | +/* |
| 16 | + * Get the text and position to be evaluated for "beval". |
| 17 | + * If "getword" is true the returned text is not the whole line but the |
| 18 | + * relevant word in allocated memory. |
| 19 | + * Returns OK or FAIL. |
| 20 | + */ |
| 21 | + int |
| 22 | +get_beval_info( |
| 23 | + BalloonEval *beval, |
| 24 | + int getword, |
| 25 | + win_T **winp, |
| 26 | + linenr_T *lnump, |
| 27 | + char_u **textp, |
| 28 | + int *colp) |
| 29 | +{ |
| 30 | + win_T *wp; |
| 31 | + int row, col; |
| 32 | + char_u *lbuf; |
| 33 | + linenr_T lnum; |
| 34 | + |
| 35 | + *textp = NULL; |
| 36 | +# ifdef FEAT_BEVAL_TERM |
| 37 | +# ifdef FEAT_GUI |
| 38 | + if (!gui.in_use) |
| 39 | +# endif |
| 40 | + { |
| 41 | + row = mouse_row; |
| 42 | + col = mouse_col; |
| 43 | + } |
| 44 | +# endif |
| 45 | +# ifdef FEAT_GUI |
| 46 | + if (gui.in_use) |
| 47 | + { |
| 48 | + row = Y_2_ROW(beval->y); |
| 49 | + col = X_2_COL(beval->x); |
| 50 | + } |
| 51 | +#endif |
| 52 | + wp = mouse_find_win(&row, &col); |
| 53 | + if (wp != NULL && row < wp->w_height && col < wp->w_width) |
| 54 | + { |
| 55 | + /* Found a window and the cursor is in the text. Now find the line |
| 56 | + * number. */ |
| 57 | + if (!mouse_comp_pos(wp, &row, &col, &lnum)) |
| 58 | + { |
| 59 | + /* Not past end of the file. */ |
| 60 | + lbuf = ml_get_buf(wp->w_buffer, lnum, FALSE); |
| 61 | + if (col <= win_linetabsize(wp, lbuf, (colnr_T)MAXCOL)) |
| 62 | + { |
| 63 | + /* Not past end of line. */ |
| 64 | + if (getword) |
| 65 | + { |
| 66 | + /* For Netbeans we get the relevant part of the line |
| 67 | + * instead of the whole line. */ |
| 68 | + int len; |
| 69 | + pos_T *spos = NULL, *epos = NULL; |
| 70 | + |
| 71 | + if (VIsual_active) |
| 72 | + { |
| 73 | + if (LT_POS(VIsual, curwin->w_cursor)) |
| 74 | + { |
| 75 | + spos = &VIsual; |
| 76 | + epos = &curwin->w_cursor; |
| 77 | + } |
| 78 | + else |
| 79 | + { |
| 80 | + spos = &curwin->w_cursor; |
| 81 | + epos = &VIsual; |
| 82 | + } |
| 83 | + } |
| 84 | + |
| 85 | + col = vcol2col(wp, lnum, col); |
| 86 | + |
| 87 | + if (VIsual_active |
| 88 | + && wp->w_buffer == curwin->w_buffer |
| 89 | + && (lnum == spos->lnum |
| 90 | + ? col >= (int)spos->col |
| 91 | + : lnum > spos->lnum) |
| 92 | + && (lnum == epos->lnum |
| 93 | + ? col <= (int)epos->col |
| 94 | + : lnum < epos->lnum)) |
| 95 | + { |
| 96 | + /* Visual mode and pointing to the line with the |
| 97 | + * Visual selection: return selected text, with a |
| 98 | + * maximum of one line. */ |
| 99 | + if (spos->lnum != epos->lnum || spos->col == epos->col) |
| 100 | + return FAIL; |
| 101 | + |
| 102 | + lbuf = ml_get_buf(curwin->w_buffer, VIsual.lnum, FALSE); |
| 103 | + len = epos->col - spos->col; |
| 104 | + if (*p_sel != 'e') |
| 105 | + len += MB_PTR2LEN(lbuf + epos->col); |
| 106 | + lbuf = vim_strnsave(lbuf + spos->col, len); |
| 107 | + lnum = spos->lnum; |
| 108 | + col = spos->col; |
| 109 | + } |
| 110 | + else |
| 111 | + { |
| 112 | + /* Find the word under the cursor. */ |
| 113 | + ++emsg_off; |
| 114 | + len = find_ident_at_pos(wp, lnum, (colnr_T)col, &lbuf, |
| 115 | + FIND_IDENT + FIND_STRING + FIND_EVAL); |
| 116 | + --emsg_off; |
| 117 | + if (len == 0) |
| 118 | + return FAIL; |
| 119 | + lbuf = vim_strnsave(lbuf, len); |
| 120 | + } |
| 121 | + } |
| 122 | + |
| 123 | + *winp = wp; |
| 124 | + *lnump = lnum; |
| 125 | + *textp = lbuf; |
| 126 | + *colp = col; |
| 127 | + beval->ts = wp->w_buffer->b_p_ts; |
| 128 | + return OK; |
| 129 | + } |
| 130 | + } |
| 131 | + } |
| 132 | + |
| 133 | + return FAIL; |
| 134 | +} |
| 135 | + |
| 136 | +/* |
| 137 | + * Show a balloon with "mesg". |
| 138 | + */ |
| 139 | + void |
| 140 | +post_balloon(BalloonEval *beval UNUSED, char_u *mesg) |
| 141 | +{ |
| 142 | +# ifdef FEAT_BEVAL_TERM |
| 143 | +# ifdef FEAT_GUI |
| 144 | + if (!gui.in_use) |
| 145 | +# endif |
| 146 | + ui_post_balloon(mesg); |
| 147 | +# endif |
| 148 | +# ifdef FEAT_BEVAL_GUI |
| 149 | + if (gui.in_use) |
| 150 | + gui_mch_post_balloon(beval, mesg); |
| 151 | +# endif |
| 152 | +} |
| 153 | + |
| 154 | +/* |
| 155 | + * Returns TRUE if the balloon eval has been enabled: |
| 156 | + * 'ballooneval' for the GUI and 'balloonevalterm' for the terminal. |
| 157 | + * Also checks if the screen isn't scrolled up. |
| 158 | + */ |
| 159 | + int |
| 160 | +can_use_beval(void) |
| 161 | +{ |
| 162 | + return (0 |
| 163 | +#ifdef FEAT_BEVAL_GUI |
| 164 | + || (gui.in_use && p_beval) |
| 165 | +#endif |
| 166 | +#ifdef FEAT_BEVAL_TERM |
| 167 | + || ( |
| 168 | +# ifdef FEAT_GUI |
| 169 | + !gui.in_use && |
| 170 | +# endif |
| 171 | + p_bevalterm) |
| 172 | +#endif |
| 173 | + ) && msg_scrolled == 0; |
| 174 | +} |
| 175 | + |
| 176 | +/* |
| 177 | + * Common code, invoked when the mouse is resting for a moment. |
| 178 | + */ |
| 179 | + void |
| 180 | +general_beval_cb(BalloonEval *beval, int state UNUSED) |
| 181 | +{ |
| 182 | +#ifdef FEAT_EVAL |
| 183 | + win_T *wp; |
| 184 | + int col; |
| 185 | + int use_sandbox; |
| 186 | + linenr_T lnum; |
| 187 | + char_u *text; |
| 188 | + static char_u *result = NULL; |
| 189 | + long winnr = 0; |
| 190 | + char_u *bexpr; |
| 191 | + buf_T *save_curbuf; |
| 192 | + size_t len; |
| 193 | + win_T *cw; |
| 194 | +#endif |
| 195 | + static int recursive = FALSE; |
| 196 | + |
| 197 | + /* Don't do anything when 'ballooneval' is off, messages scrolled the |
| 198 | + * windows up or we have no beval area. */ |
| 199 | + if (!can_use_beval() || beval == NULL) |
| 200 | + return; |
| 201 | + |
| 202 | + /* Don't do this recursively. Happens when the expression evaluation |
| 203 | + * takes a long time and invokes something that checks for CTRL-C typed. */ |
| 204 | + if (recursive) |
| 205 | + return; |
| 206 | + recursive = TRUE; |
| 207 | + |
| 208 | +#ifdef FEAT_EVAL |
| 209 | + if (get_beval_info(beval, TRUE, &wp, &lnum, &text, &col) == OK) |
| 210 | + { |
| 211 | + bexpr = (*wp->w_buffer->b_p_bexpr == NUL) ? p_bexpr |
| 212 | + : wp->w_buffer->b_p_bexpr; |
| 213 | + if (*bexpr != NUL) |
| 214 | + { |
| 215 | + /* Convert window pointer to number. */ |
| 216 | + for (cw = firstwin; cw != wp; cw = cw->w_next) |
| 217 | + ++winnr; |
| 218 | + |
| 219 | + set_vim_var_nr(VV_BEVAL_BUFNR, (long)wp->w_buffer->b_fnum); |
| 220 | + set_vim_var_nr(VV_BEVAL_WINNR, winnr); |
| 221 | + set_vim_var_nr(VV_BEVAL_WINID, wp->w_id); |
| 222 | + set_vim_var_nr(VV_BEVAL_LNUM, (long)lnum); |
| 223 | + set_vim_var_nr(VV_BEVAL_COL, (long)(col + 1)); |
| 224 | + set_vim_var_string(VV_BEVAL_TEXT, text, -1); |
| 225 | + vim_free(text); |
| 226 | + |
| 227 | + /* |
| 228 | + * Temporarily change the curbuf, so that we can determine whether |
| 229 | + * the buffer-local balloonexpr option was set insecurely. |
| 230 | + */ |
| 231 | + save_curbuf = curbuf; |
| 232 | + curbuf = wp->w_buffer; |
| 233 | + use_sandbox = was_set_insecurely((char_u *)"balloonexpr", |
| 234 | + *curbuf->b_p_bexpr == NUL ? 0 : OPT_LOCAL); |
| 235 | + curbuf = save_curbuf; |
| 236 | + if (use_sandbox) |
| 237 | + ++sandbox; |
| 238 | + ++textlock; |
| 239 | + |
| 240 | + vim_free(result); |
| 241 | + result = eval_to_string(bexpr, NULL, TRUE); |
| 242 | + |
| 243 | + /* Remove one trailing newline, it is added when the result was a |
| 244 | + * list and it's hardly ever useful. If the user really wants a |
| 245 | + * trailing newline he can add two and one remains. */ |
| 246 | + if (result != NULL) |
| 247 | + { |
| 248 | + len = STRLEN(result); |
| 249 | + if (len > 0 && result[len - 1] == NL) |
| 250 | + result[len - 1] = NUL; |
| 251 | + } |
| 252 | + |
| 253 | + if (use_sandbox) |
| 254 | + --sandbox; |
| 255 | + --textlock; |
| 256 | + |
| 257 | + set_vim_var_string(VV_BEVAL_TEXT, NULL, -1); |
| 258 | + if (result != NULL && result[0] != NUL) |
| 259 | + { |
| 260 | + post_balloon(beval, result); |
| 261 | + recursive = FALSE; |
| 262 | + return; |
| 263 | + } |
| 264 | + } |
| 265 | + } |
| 266 | +#endif |
| 267 | +#ifdef FEAT_NETBEANS_INTG |
| 268 | + if (bevalServers & BEVAL_NETBEANS) |
| 269 | + netbeans_beval_cb(beval, state); |
| 270 | +#endif |
| 271 | +#ifdef FEAT_SUN_WORKSHOP |
| 272 | + if (bevalServers & BEVAL_WORKSHOP) |
| 273 | + workshop_beval_cb(beval, state); |
| 274 | +#endif |
| 275 | + |
| 276 | + recursive = FALSE; |
| 277 | +} |
| 278 | + |
| 279 | +#endif |
| 280 | + |
0 commit comments