// 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 #include #include #include #include "nvim/api/private/handle.h" #include "nvim/api/private/helpers.h" #include "nvim/vim.h" #include "nvim/ascii.h" #include "nvim/window.h" #include "nvim/buffer.h" #include "nvim/charset.h" #include "nvim/cursor.h" #include "nvim/diff.h" #include "nvim/edit.h" #include "nvim/eval.h" #include "nvim/ex_cmds.h" #include "nvim/ex_cmds2.h" #include "nvim/ex_docmd.h" #include "nvim/ex_eval.h" #include "nvim/ex_getln.h" #include "nvim/fileio.h" #include "nvim/fold.h" #include "nvim/getchar.h" #include "nvim/hashtab.h" #include "nvim/main.h" #include "nvim/mark.h" #include "nvim/memline.h" #include "nvim/memory.h" #include "nvim/message.h" #include "nvim/misc1.h" #include "nvim/file_search.h" #include "nvim/garray.h" #include "nvim/move.h" #include "nvim/mouse.h" #include "nvim/normal.h" #include "nvim/option.h" #include "nvim/os_unix.h" #include "nvim/path.h" #include "nvim/quickfix.h" #include "nvim/regexp.h" #include "nvim/screen.h" #include "nvim/search.h" #include "nvim/state.h" #include "nvim/strings.h" #include "nvim/syntax.h" #include "nvim/terminal.h" #include "nvim/undo.h" #include "nvim/ui.h" #include "nvim/ui_compositor.h" #include "nvim/os/os.h" #ifdef INCLUDE_GENERATED_DECLARATIONS # include "window.c.generated.h" #endif #define NOWIN (win_T *)-1 /* non-existing window */ # define ROWS_AVAIL (Rows - p_ch - tabline_height()) static char *m_onlyone = N_("Already only one window"); /* * all CTRL-W window commands are handled here, called from normal_cmd(). */ void do_window( int nchar, long Prenum, int xchar /* extra char from ":wincmd gx" or NUL */ ) { long Prenum1; win_T *wp; char_u *ptr; linenr_T lnum = -1; int type = FIND_DEFINE; size_t len; char cbuf[40]; Prenum1 = Prenum == 0 ? 1 : Prenum; # define CHECK_CMDWIN \ do { \ if (cmdwin_type != 0) { \ EMSG(_(e_cmdwin)); \ return; \ } \ } while (0) switch (nchar) { /* split current window in two parts, horizontally */ case 'S': case Ctrl_S: case 's': CHECK_CMDWIN; reset_VIsual_and_resel(); // stop Visual mode // When splitting the quickfix window open a new buffer in it, // don't replicate the quickfix buffer. if (bt_quickfix(curbuf)) { goto newwindow; } (void)win_split((int)Prenum, 0); break; /* split current window in two parts, vertically */ case Ctrl_V: case 'v': CHECK_CMDWIN; reset_VIsual_and_resel(); // stop Visual mode // When splitting the quickfix window open a new buffer in it, // don't replicate the quickfix buffer. if (bt_quickfix(curbuf)) { goto newwindow; } (void)win_split((int)Prenum, WSP_VERT); break; /* split current window and edit alternate file */ case Ctrl_HAT: case '^': CHECK_CMDWIN; reset_VIsual_and_resel(); // stop Visual mode if (buflist_findnr(Prenum == 0 ? curwin->w_alt_fnum : Prenum) == NULL) { if (Prenum == 0) { EMSG(_(e_noalt)); } else { EMSGN(_("E92: Buffer %" PRId64 " not found"), Prenum); } break; } if (!curbuf_locked() && win_split(0, 0) == OK) { (void)buflist_getfile(Prenum == 0 ? curwin->w_alt_fnum : Prenum, (linenr_T)0, GETF_ALT, false); } break; /* open new window */ case Ctrl_N: case 'n': CHECK_CMDWIN; reset_VIsual_and_resel(); // stop Visual mode newwindow: if (Prenum) /* window height */ vim_snprintf(cbuf, sizeof(cbuf) - 5, "%" PRId64, (int64_t)Prenum); else cbuf[0] = NUL; if (nchar == 'v' || nchar == Ctrl_V) { xstrlcat(cbuf, "v", sizeof(cbuf)); } xstrlcat(cbuf, "new", sizeof(cbuf)); do_cmdline_cmd(cbuf); break; /* quit current window */ case Ctrl_Q: case 'q': reset_VIsual_and_resel(); /* stop Visual mode */ cmd_with_count("quit", (char_u *)cbuf, sizeof(cbuf), Prenum); do_cmdline_cmd(cbuf); break; /* close current window */ case Ctrl_C: case 'c': reset_VIsual_and_resel(); /* stop Visual mode */ cmd_with_count("close", (char_u *)cbuf, sizeof(cbuf), Prenum); do_cmdline_cmd(cbuf); break; /* close preview window */ case Ctrl_Z: case 'z': CHECK_CMDWIN; reset_VIsual_and_resel(); // stop Visual mode do_cmdline_cmd("pclose"); break; /* cursor to preview window */ case 'P': wp = NULL; FOR_ALL_WINDOWS_IN_TAB(wp2, curtab) { if (wp2->w_p_pvw) { wp = wp2; break; } } if (wp == NULL) { EMSG(_("E441: There is no preview window")); } else { win_goto(wp); } break; /* close all but current window */ case Ctrl_O: case 'o': CHECK_CMDWIN; reset_VIsual_and_resel(); // stop Visual mode cmd_with_count("only", (char_u *)cbuf, sizeof(cbuf), Prenum); do_cmdline_cmd(cbuf); break; /* cursor to next window with wrap around */ case Ctrl_W: case 'w': /* cursor to previous window with wrap around */ case 'W': CHECK_CMDWIN; if (ONE_WINDOW && Prenum != 1) { // just one window beep_flush(); } else { if (Prenum) { // go to specified window for (wp = firstwin; --Prenum > 0; ) { if (wp->w_next == NULL) break; else wp = wp->w_next; } } else { if (nchar == 'W') { // go to previous window wp = curwin->w_prev; if (wp == NULL) { wp = lastwin; // wrap around } while (wp != NULL && wp->w_floating && !wp->w_float_config.focusable) { wp = wp->w_prev; } } else { // go to next window wp = curwin->w_next; while (wp != NULL && wp->w_floating && !wp->w_float_config.focusable) { wp = wp->w_next; } if (wp == NULL) { wp = firstwin; // wrap around } } } win_goto(wp); } break; /* cursor to window below */ case 'j': case K_DOWN: case Ctrl_J: CHECK_CMDWIN; win_goto_ver(false, Prenum1); break; /* cursor to window above */ case 'k': case K_UP: case Ctrl_K: CHECK_CMDWIN; win_goto_ver(true, Prenum1); break; /* cursor to left window */ case 'h': case K_LEFT: case Ctrl_H: case K_BS: CHECK_CMDWIN; win_goto_hor(true, Prenum1); break; /* cursor to right window */ case 'l': case K_RIGHT: case Ctrl_L: CHECK_CMDWIN; win_goto_hor(false, Prenum1); break; /* move window to new tab page */ case 'T': if (one_window()) MSG(_(m_onlyone)); else { tabpage_T *oldtab = curtab; tabpage_T *newtab; /* First create a new tab with the window, then go back to * the old tab and close the window there. */ wp = curwin; if (win_new_tabpage((int)Prenum, NULL) == OK && valid_tabpage(oldtab)) { newtab = curtab; goto_tabpage_tp(oldtab, true, true); if (curwin == wp) { win_close(curwin, false); } if (valid_tabpage(newtab)) { goto_tabpage_tp(newtab, true, true); apply_autocmds(EVENT_TABNEWENTERED, NULL, NULL, false, curbuf); } } } break; /* cursor to top-left window */ case 't': case Ctrl_T: win_goto(firstwin); break; /* cursor to bottom-right window */ case 'b': case Ctrl_B: win_goto(lastwin_nofloating()); break; /* cursor to last accessed (previous) window */ case 'p': case Ctrl_P: if (!win_valid(prevwin)) { beep_flush(); } else { win_goto(prevwin); } break; /* exchange current and next window */ case 'x': case Ctrl_X: CHECK_CMDWIN; win_exchange(Prenum); break; /* rotate windows downwards */ case Ctrl_R: case 'r': CHECK_CMDWIN; reset_VIsual_and_resel(); // stop Visual mode win_rotate(false, (int)Prenum1); // downwards break; /* rotate windows upwards */ case 'R': CHECK_CMDWIN; reset_VIsual_and_resel(); // stop Visual mode win_rotate(true, (int)Prenum1); // upwards break; /* move window to the very top/bottom/left/right */ case 'K': case 'J': case 'H': case 'L': CHECK_CMDWIN; win_totop((int)Prenum, ((nchar == 'H' || nchar == 'L') ? WSP_VERT : 0) | ((nchar == 'H' || nchar == 'K') ? WSP_TOP : WSP_BOT)); break; /* make all windows the same height */ case '=': win_equal(NULL, false, 'b'); break; /* increase current window height */ case '+': win_setheight(curwin->w_height + (int)Prenum1); break; /* decrease current window height */ case '-': win_setheight(curwin->w_height - (int)Prenum1); break; /* set current window height */ case Ctrl__: case '_': win_setheight(Prenum ? (int)Prenum : Rows-1); break; /* increase current window width */ case '>': win_setwidth(curwin->w_width + (int)Prenum1); break; /* decrease current window width */ case '<': win_setwidth(curwin->w_width - (int)Prenum1); break; /* set current window width */ case '|': win_setwidth(Prenum != 0 ? (int)Prenum : Columns); break; /* jump to tag and split window if tag exists (in preview window) */ case '}': CHECK_CMDWIN; if (Prenum) { g_do_tagpreview = Prenum; } else { g_do_tagpreview = p_pvh; } FALLTHROUGH; case ']': case Ctrl_RSB: CHECK_CMDWIN; // Keep visual mode, can select words to use as a tag. if (Prenum) postponed_split = Prenum; else postponed_split = -1; if (nchar != '}') { g_do_tagpreview = 0; } // Execute the command right here, required when // "wincmd ]" was used in a function. do_nv_ident(Ctrl_RSB, NUL); break; /* edit file name under cursor in a new window */ case 'f': case 'F': case Ctrl_F: wingotofile: CHECK_CMDWIN; ptr = grab_file_name(Prenum1, &lnum); if (ptr != NULL) { tabpage_T *oldtab = curtab; win_T *oldwin = curwin; setpcmark(); if (win_split(0, 0) == OK) { RESET_BINDING(curwin); if (do_ecmd(0, ptr, NULL, NULL, ECMD_LASTL, ECMD_HIDE, NULL) == FAIL) { // Failed to open the file, close the window opened for it. win_close(curwin, false); goto_tabpage_win(oldtab, oldwin); } else if (nchar == 'F' && lnum >= 0) { curwin->w_cursor.lnum = lnum; check_cursor_lnum(); beginline(BL_SOL | BL_FIX); } } xfree(ptr); } break; /* Go to the first occurrence of the identifier under cursor along path in a * new window -- webb */ case 'i': /* Go to any match */ case Ctrl_I: type = FIND_ANY; FALLTHROUGH; case 'd': // Go to definition, using 'define' case Ctrl_D: CHECK_CMDWIN; if ((len = find_ident_under_cursor(&ptr, FIND_IDENT)) == 0) { break; } find_pattern_in_path(ptr, 0, len, true, Prenum == 0, type, Prenum1, ACTION_SPLIT, 1, MAXLNUM); curwin->w_set_curswant = TRUE; break; // Quickfix window only: view the result under the cursor in a new split. case K_KENTER: case CAR: if (bt_quickfix(curbuf)) { qf_view_result(true); } break; /* CTRL-W g extended commands */ case 'g': case Ctrl_G: CHECK_CMDWIN; no_mapping++; if (xchar == NUL) { xchar = plain_vgetc(); } LANGMAP_ADJUST(xchar, true); no_mapping--; (void)add_to_showcmd(xchar); switch (xchar) { case '}': xchar = Ctrl_RSB; if (Prenum) g_do_tagpreview = Prenum; else g_do_tagpreview = p_pvh; FALLTHROUGH; case ']': case Ctrl_RSB: // Keep visual mode, can select words to use as a tag. if (Prenum) postponed_split = Prenum; else postponed_split = -1; /* Execute the command right here, required when * "wincmd g}" was used in a function. */ do_nv_ident('g', xchar); break; case TAB: goto_tabpage_lastused(); break; case 'f': /* CTRL-W gf: "gf" in a new tab page */ case 'F': /* CTRL-W gF: "gF" in a new tab page */ cmdmod.tab = tabpage_index(curtab) + 1; nchar = xchar; goto wingotofile; case 't': // CTRL-W gt: go to next tab page goto_tabpage((int)Prenum); break; case 'T': // CTRL-W gT: go to previous tab page goto_tabpage(-(int)Prenum1); break; case 'e': if (curwin->w_floating || !ui_has(kUIMultigrid)) { beep_flush(); break; } FloatConfig config = FLOAT_CONFIG_INIT; config.width = curwin->w_width; config.height = curwin->w_height; config.external = true; Error err = ERROR_INIT; if (!win_new_float(curwin, config, &err)) { EMSG(err.msg); api_clear_error(&err); beep_flush(); } break; default: beep_flush(); break; } break; default: beep_flush(); break; } } static void cmd_with_count(char *cmd, char_u *bufp, size_t bufsize, int64_t Prenum) { size_t len = xstrlcpy((char *)bufp, cmd, bufsize); if (Prenum > 0 && len < bufsize) { vim_snprintf((char *)bufp + len, bufsize - len, "%" PRId64, Prenum); } } void win_set_buf(Window window, Buffer buffer, bool noautocmd, Error *err) { win_T *win = find_window_by_handle(window, err), *save_curwin = curwin; buf_T *buf = find_buffer_by_handle(buffer, err); tabpage_T *tab = win_find_tabpage(win), *save_curtab = curtab; if (!win || !buf) { return; } if (noautocmd) { block_autocmds(); } if (switch_win_noblock(&save_curwin, &save_curtab, win, tab, false) == FAIL) { api_set_error(err, kErrorTypeException, "Failed to switch to window %d", window); } try_start(); int result = do_buffer(DOBUF_GOTO, DOBUF_FIRST, FORWARD, buf->b_fnum, 0); if (!try_end(err) && result == FAIL) { api_set_error(err, kErrorTypeException, "Failed to set buffer %d", buffer); } // If window is not current, state logic will not validate its cursor. // So do it now. validate_cursor(); restore_win_noblock(save_curwin, save_curtab, false); if (noautocmd) { unblock_autocmds(); } } /// Create a new float. /// /// if wp == NULL allocate a new window, otherwise turn existing window into a /// float. It must then already belong to the current tabpage! /// /// config must already have been validated! win_T *win_new_float(win_T *wp, FloatConfig fconfig, Error *err) { if (wp == NULL) { wp = win_alloc(lastwin_nofloating(), false); win_init(wp, curwin, 0); } else { assert(!wp->w_floating); if (firstwin == wp && lastwin_nofloating() == wp) { // last non-float api_set_error(err, kErrorTypeException, "Cannot change last window into float"); return NULL; } else if (!win_valid(wp)) { api_set_error(err, kErrorTypeException, "Cannot change window from different tabpage into float"); return NULL; } int dir; winframe_remove(wp, &dir, NULL); XFREE_CLEAR(wp->w_frame); (void)win_comp_pos(); // recompute window positions win_remove(wp, NULL); win_append(lastwin_nofloating(), wp); } wp->w_floating = 1; wp->w_status_height = 0; wp->w_vsep_width = 0; win_config_float(wp, fconfig); win_set_inner_size(wp); wp->w_pos_changed = true; redraw_later(wp, VALID); return wp; } void win_set_minimal_style(win_T *wp) { wp->w_p_nu = false; wp->w_p_rnu = false; wp->w_p_cul = false; wp->w_p_cuc = false; wp->w_p_spell = false; wp->w_p_list = false; // Hide EOB region: use " " fillchar and cleared highlighting if (wp->w_p_fcs_chars.eob != ' ') { char_u *old = wp->w_p_fcs; wp->w_p_fcs = ((*old == NUL) ? (char_u *)xstrdup("eob: ") : concat_str(old, (char_u *)",eob: ")); xfree(old); } if (wp->w_hl_ids[HLF_EOB] != -1) { char_u *old = wp->w_p_winhl; wp->w_p_winhl = ((*old == NUL) ? (char_u *)xstrdup("EndOfBuffer:") : concat_str(old, (char_u *)",EndOfBuffer:")); xfree(old); } // signcolumn: use 'auto' if (wp->w_p_scl[0] != 'a' || STRLEN(wp->w_p_scl) >= 8) { xfree(wp->w_p_scl); wp->w_p_scl = (char_u *)xstrdup("auto"); } // foldcolumn: use '0' if (wp->w_p_fdc[0] != '0') { xfree(wp->w_p_fdc); wp->w_p_fdc = (char_u *)xstrdup("0"); } // colorcolumn: cleared if (wp->w_p_cc != NULL && *wp->w_p_cc != NUL) { xfree(wp->w_p_cc); wp->w_p_cc = (char_u *)xstrdup(""); } } void win_config_float(win_T *wp, FloatConfig fconfig) { wp->w_width = MAX(fconfig.width, 1); wp->w_height = MAX(fconfig.height, 1); if (fconfig.relative == kFloatRelativeCursor) { fconfig.relative = kFloatRelativeWindow; fconfig.row += curwin->w_wrow; fconfig.col += curwin->w_wcol; fconfig.window = curwin->handle; } bool change_external = fconfig.external != wp->w_float_config.external; bool change_border = (fconfig.border != wp->w_float_config.border || memcmp(fconfig.border_hl_ids, wp->w_float_config.border_hl_ids, sizeof fconfig.border_hl_ids)); wp->w_float_config = fconfig; bool has_border = wp->w_floating && wp->w_float_config.border; for (int i = 0; i < 4; i++) { wp->w_border_adj[i] = has_border && wp->w_float_config.border_chars[2 * i+1][0]; } if (!ui_has(kUIMultigrid)) { wp->w_height = MIN(wp->w_height, Rows - 1 - (wp->w_border_adj[0] + wp->w_border_adj[2])); wp->w_width = MIN(wp->w_width, Columns - (wp->w_border_adj[1] + wp->w_border_adj[3])); } win_set_inner_size(wp); must_redraw = MAX(must_redraw, VALID); wp->w_pos_changed = true; if (change_external || change_border) { wp->w_hl_needs_update = true; redraw_later(wp, NOT_VALID); } // compute initial position if (wp->w_float_config.relative == kFloatRelativeWindow) { int row = wp->w_float_config.row; int col = wp->w_float_config.col; Error dummy = ERROR_INIT; win_T *parent = find_window_by_handle(wp->w_float_config.window, &dummy); if (parent) { row += parent->w_winrow; col += parent->w_wincol; ScreenGrid *grid = &parent->w_grid; int row_off = 0, col_off = 0; screen_adjust_grid(&grid, &row_off, &col_off); row += row_off; col += col_off; } api_clear_error(&dummy); if (wp->w_float_config.bufpos.lnum >= 0) { pos_T pos = { wp->w_float_config.bufpos.lnum + 1, wp->w_float_config.bufpos.col, 0 }; int trow, tcol, tcolc, tcole; textpos2screenpos(wp, &pos, &trow, &tcol, &tcolc, &tcole, true); row += trow - 1; col += tcol - 1; } wp->w_winrow = row; wp->w_wincol = col; } else { wp->w_winrow = fconfig.row; wp->w_wincol = fconfig.col; } // changing border style while keeping border only requires redrawing border if (fconfig.border) { wp->w_redr_border = true; redraw_later(wp, VALID); } } void win_check_anchored_floats(win_T *win) { for (win_T *wp = lastwin; wp && wp->w_floating; wp = wp->w_prev) { // float might be anchored to moved window if (wp->w_float_config.relative == kFloatRelativeWindow && wp->w_float_config.window == win->handle) { wp->w_pos_changed = true; } } } /// Return the number of fold columns to display int win_fdccol_count(win_T *wp) { const char *fdc = (const char *)wp->w_p_fdc; // auto: if (strncmp(fdc, "auto", 4) == 0) { const int fdccol = fdc[4] == ':' ? fdc[5] - '0' : 1; int needed_fdccols = getDeepestNesting(wp); return MIN(fdccol, needed_fdccols); } else { return fdc[0] - '0'; } } void ui_ext_win_position(win_T *wp) { if (!wp->w_floating) { ui_call_win_pos(wp->w_grid_alloc.handle, wp->handle, wp->w_winrow, wp->w_wincol, wp->w_width, wp->w_height); return; } FloatConfig c = wp->w_float_config; if (!c.external) { ScreenGrid *grid = &default_grid; float row = c.row, col = c.col; if (c.relative == kFloatRelativeWindow) { Error dummy = ERROR_INIT; win_T *win = find_window_by_handle(c.window, &dummy); if (win) { grid = &win->w_grid; int row_off = 0, col_off = 0; screen_adjust_grid(&grid, &row_off, &col_off); row += row_off; col += col_off; if (c.bufpos.lnum >= 0) { pos_T pos = { c.bufpos.lnum+1, c.bufpos.col, 0 }; int trow, tcol, tcolc, tcole; textpos2screenpos(win, &pos, &trow, &tcol, &tcolc, &tcole, true); row += trow-1; col += tcol-1; } } api_clear_error(&dummy); } wp->w_grid_alloc.zindex = wp->w_float_config.zindex; if (ui_has(kUIMultigrid)) { String anchor = cstr_to_string(float_anchor_str[c.anchor]); ui_call_win_float_pos(wp->w_grid_alloc.handle, wp->handle, anchor, grid->handle, row, col, c.focusable, wp->w_grid_alloc.zindex); } else { // TODO(bfredl): ideally, compositor should work like any multigrid UI // and use standard win_pos events. bool east = c.anchor & kFloatAnchorEast; bool south = c.anchor & kFloatAnchorSouth; int comp_row = (int)row - (south ? wp->w_height : 0); int comp_col = (int)col - (east ? wp->w_width : 0); comp_row += grid->comp_row; comp_col += grid->comp_col; comp_row = MAX(MIN(comp_row, Rows-wp->w_height_outer-1), 0); comp_col = MAX(MIN(comp_col, Columns-wp->w_width_outer), 0); wp->w_winrow = comp_row; wp->w_wincol = comp_col; bool valid = (wp->w_redr_type == 0); ui_comp_put_grid(&wp->w_grid_alloc, comp_row, comp_col, wp->w_height_outer, wp->w_width_outer, valid, false); ui_check_cursor_grid(wp->w_grid_alloc.handle); wp->w_grid_alloc.focusable = wp->w_float_config.focusable; if (!valid) { wp->w_grid_alloc.valid = false; redraw_later(wp, NOT_VALID); } } } else { ui_call_win_external_pos(wp->w_grid_alloc.handle, wp->handle); } } void ui_ext_win_viewport(win_T *wp) { if ((wp == curwin || ui_has(kUIMultigrid)) && wp->w_viewport_invalid) { int botline = wp->w_botline; if (botline == wp->w_buffer->b_ml.ml_line_count+1 && wp->w_empty_rows == 0) { // TODO(bfredl): The might be more cases to consider, like how does this // interact with incomplete final line? Diff filler lines? botline = wp->w_buffer->b_ml.ml_line_count; } ui_call_win_viewport(wp->w_grid_alloc.handle, wp->handle, wp->w_topline-1, botline, wp->w_cursor.lnum-1, wp->w_cursor.col); wp->w_viewport_invalid = false; } } /* * split the current window, implements CTRL-W s and :split * * "size" is the height or width for the new window, 0 to use half of current * height or width. * * "flags": * WSP_ROOM: require enough room for new window * WSP_VERT: vertical split. * WSP_TOP: open window at the top-left of the shell (help window). * WSP_BOT: open window at the bottom-right of the shell (quickfix window). * WSP_HELP: creating the help window, keep layout snapshot * * return FAIL for failure, OK otherwise */ int win_split(int size, int flags) { /* When the ":tab" modifier was used open a new tab page instead. */ if (may_open_tabpage() == OK) return OK; /* Add flags from ":vertical", ":topleft" and ":botright". */ flags |= cmdmod.split; if ((flags & WSP_TOP) && (flags & WSP_BOT)) { EMSG(_("E442: Can't split topleft and botright at the same time")); return FAIL; } /* When creating the help window make a snapshot of the window layout. * Otherwise clear the snapshot, it's now invalid. */ if (flags & WSP_HELP) make_snapshot(SNAP_HELP_IDX); else clear_snapshot(curtab, SNAP_HELP_IDX); return win_split_ins(size, flags, NULL, 0); } /* * When "new_wp" is NULL: split the current window in two. * When "new_wp" is not NULL: insert this window at the far * top/left/right/bottom. * return FAIL for failure, OK otherwise */ int win_split_ins(int size, int flags, win_T *new_wp, int dir) { win_T *wp = new_wp; win_T *oldwin; int new_size = size; int i; int need_status = 0; int do_equal = FALSE; int needed; int available; int oldwin_height = 0; int layout; frame_T *frp, *curfrp, *frp2, *prevfrp; int before; int minheight; int wmh1; bool did_set_fraction = false; if (flags & WSP_TOP) { oldwin = firstwin; } else if (flags & WSP_BOT || curwin->w_floating) { // can't split float, use last nonfloating window instead oldwin = lastwin_nofloating(); } else { oldwin = curwin; } bool new_in_layout = (new_wp == NULL || new_wp->w_floating); // add a status line when p_ls == 1 and splitting the first window if (one_nonfloat() && p_ls == 1 && oldwin->w_status_height == 0) { if (oldwin->w_height <= p_wmh && new_in_layout) { EMSG(_(e_noroom)); return FAIL; } need_status = STATUS_HEIGHT; } if (flags & WSP_VERT) { int wmw1; int minwidth; layout = FR_ROW; /* * Check if we are able to split the current window and compute its * width. */ // Current window requires at least 1 space. wmw1 = (p_wmw == 0 ? 1 : p_wmw); needed = wmw1 + 1; if (flags & WSP_ROOM) { needed += p_wiw - wmw1; } if (flags & (WSP_BOT | WSP_TOP)) { minwidth = frame_minwidth(topframe, NOWIN); available = topframe->fr_width; needed += minwidth; } else if (p_ea) { minwidth = frame_minwidth(oldwin->w_frame, NOWIN); prevfrp = oldwin->w_frame; for (frp = oldwin->w_frame->fr_parent; frp != NULL; frp = frp->fr_parent) { if (frp->fr_layout == FR_ROW) { FOR_ALL_FRAMES(frp2, frp->fr_child) { if (frp2 != prevfrp) { minwidth += frame_minwidth(frp2, NOWIN); } } } prevfrp = frp; } available = topframe->fr_width; needed += minwidth; } else { minwidth = frame_minwidth(oldwin->w_frame, NOWIN); available = oldwin->w_frame->fr_width; needed += minwidth; } if (available < needed && new_in_layout) { EMSG(_(e_noroom)); return FAIL; } if (new_size == 0) new_size = oldwin->w_width / 2; if (new_size > available - minwidth - 1) { new_size = available - minwidth - 1; } if (new_size < wmw1) { new_size = wmw1; } /* if it doesn't fit in the current window, need win_equal() */ if (oldwin->w_width - new_size - 1 < p_wmw) do_equal = TRUE; // We don't like to take lines for the new window from a // 'winfixwidth' window. Take them from a window to the left or right // instead, if possible. Add one for the separator. if (oldwin->w_p_wfw) { win_setwidth_win(oldwin->w_width + new_size + 1, oldwin); } /* Only make all windows the same width if one of them (except oldwin) * is wider than one of the split windows. */ if (!do_equal && p_ea && size == 0 && *p_ead != 'v' && oldwin->w_frame->fr_parent != NULL) { frp = oldwin->w_frame->fr_parent->fr_child; while (frp != NULL) { if (frp->fr_win != oldwin && frp->fr_win != NULL && (frp->fr_win->w_width > new_size || frp->fr_win->w_width > oldwin->w_width - new_size - 1)) { do_equal = TRUE; break; } frp = frp->fr_next; } } } else { layout = FR_COL; /* * Check if we are able to split the current window and compute its * height. */ // Current window requires at least 1 space. wmh1 = p_wmh == 0 ? 1 : p_wmh; needed = wmh1 + STATUS_HEIGHT; if (flags & WSP_ROOM) { needed += p_wh - wmh1; } if (flags & (WSP_BOT | WSP_TOP)) { minheight = frame_minheight(topframe, NOWIN) + need_status; available = topframe->fr_height; needed += minheight; } else if (p_ea) { minheight = frame_minheight(oldwin->w_frame, NOWIN) + need_status; prevfrp = oldwin->w_frame; for (frp = oldwin->w_frame->fr_parent; frp != NULL; frp = frp->fr_parent) { if (frp->fr_layout == FR_COL) { FOR_ALL_FRAMES(frp2, frp->fr_child) { if (frp2 != prevfrp) { minheight += frame_minheight(frp2, NOWIN); } } } prevfrp = frp; } available = topframe->fr_height; needed += minheight; } else { minheight = frame_minheight(oldwin->w_frame, NOWIN) + need_status; available = oldwin->w_frame->fr_height; needed += minheight; } if (available < needed && new_in_layout) { EMSG(_(e_noroom)); return FAIL; } oldwin_height = oldwin->w_height; if (need_status) { oldwin->w_status_height = STATUS_HEIGHT; oldwin_height -= STATUS_HEIGHT; } if (new_size == 0) new_size = oldwin_height / 2; if (new_size > available - minheight - STATUS_HEIGHT) { new_size = available - minheight - STATUS_HEIGHT; } if (new_size < wmh1) { new_size = wmh1; } /* if it doesn't fit in the current window, need win_equal() */ if (oldwin_height - new_size - STATUS_HEIGHT < p_wmh) do_equal = TRUE; /* We don't like to take lines for the new window from a * 'winfixheight' window. Take them from a window above or below * instead, if possible. */ if (oldwin->w_p_wfh) { // Set w_fraction now so that the cursor keeps the same relative // vertical position using the old height. set_fraction(oldwin); did_set_fraction = true; win_setheight_win(oldwin->w_height + new_size + STATUS_HEIGHT, oldwin); oldwin_height = oldwin->w_height; if (need_status) oldwin_height -= STATUS_HEIGHT; } /* Only make all windows the same height if one of them (except oldwin) * is higher than one of the split windows. */ if (!do_equal && p_ea && size == 0 && *p_ead != 'h' && oldwin->w_frame->fr_parent != NULL) { frp = oldwin->w_frame->fr_parent->fr_child; while (frp != NULL) { if (frp->fr_win != oldwin && frp->fr_win != NULL && (frp->fr_win->w_height > new_size || frp->fr_win->w_height > oldwin_height - new_size - STATUS_HEIGHT)) { do_equal = TRUE; break; } frp = frp->fr_next; } } } /* * allocate new window structure and link it in the window list */ if ((flags & WSP_TOP) == 0 && ((flags & WSP_BOT) || (flags & WSP_BELOW) || (!(flags & WSP_ABOVE) && ( (flags & WSP_VERT) ? p_spr : p_sb)))) { /* new window below/right of current one */ if (new_wp == NULL) wp = win_alloc(oldwin, FALSE); else win_append(oldwin, wp); } else { if (new_wp == NULL) wp = win_alloc(oldwin->w_prev, FALSE); else win_append(oldwin->w_prev, wp); } if (new_wp == NULL) { if (wp == NULL) return FAIL; new_frame(wp); /* make the contents of the new window the same as the current one */ win_init(wp, curwin, flags); } else if (wp->w_floating) { new_frame(wp); wp->w_floating = false; // non-floating window doesn't store float config. wp->w_float_config = FLOAT_CONFIG_INIT; } /* * Reorganise the tree of frames to insert the new window. */ if (flags & (WSP_TOP | WSP_BOT)) { if ((topframe->fr_layout == FR_COL && (flags & WSP_VERT) == 0) || (topframe->fr_layout == FR_ROW && (flags & WSP_VERT) != 0)) { curfrp = topframe->fr_child; if (flags & WSP_BOT) while (curfrp->fr_next != NULL) curfrp = curfrp->fr_next; } else curfrp = topframe; before = (flags & WSP_TOP); } else { curfrp = oldwin->w_frame; if (flags & WSP_BELOW) before = FALSE; else if (flags & WSP_ABOVE) before = TRUE; else if (flags & WSP_VERT) before = !p_spr; else before = !p_sb; } if (curfrp->fr_parent == NULL || curfrp->fr_parent->fr_layout != layout) { /* Need to create a new frame in the tree to make a branch. */ frp = xcalloc(1, sizeof(frame_T)); *frp = *curfrp; curfrp->fr_layout = layout; frp->fr_parent = curfrp; frp->fr_next = NULL; frp->fr_prev = NULL; curfrp->fr_child = frp; curfrp->fr_win = NULL; curfrp = frp; if (frp->fr_win != NULL) { oldwin->w_frame = frp; } else { FOR_ALL_FRAMES(frp, frp->fr_child) { frp->fr_parent = curfrp; } } } if (new_wp == NULL) frp = wp->w_frame; else frp = new_wp->w_frame; frp->fr_parent = curfrp->fr_parent; /* Insert the new frame at the right place in the frame list. */ if (before) frame_insert(curfrp, frp); else frame_append(curfrp, frp); /* Set w_fraction now so that the cursor keeps the same relative * vertical position. */ if (!did_set_fraction) { set_fraction(oldwin); } wp->w_fraction = oldwin->w_fraction; if (flags & WSP_VERT) { wp->w_p_scr = curwin->w_p_scr; if (need_status) { win_new_height(oldwin, oldwin->w_height - 1); oldwin->w_status_height = need_status; } if (flags & (WSP_TOP | WSP_BOT)) { /* set height and row of new window to full height */ wp->w_winrow = tabline_height(); win_new_height(wp, curfrp->fr_height - (p_ls > 0)); wp->w_status_height = (p_ls > 0); } else { /* height and row of new window is same as current window */ wp->w_winrow = oldwin->w_winrow; win_new_height(wp, oldwin->w_height); wp->w_status_height = oldwin->w_status_height; } frp->fr_height = curfrp->fr_height; /* "new_size" of the current window goes to the new window, use * one column for the vertical separator */ win_new_width(wp, new_size); if (before) wp->w_vsep_width = 1; else { wp->w_vsep_width = oldwin->w_vsep_width; oldwin->w_vsep_width = 1; } if (flags & (WSP_TOP | WSP_BOT)) { if (flags & WSP_BOT) frame_add_vsep(curfrp); /* Set width of neighbor frame */ frame_new_width(curfrp, curfrp->fr_width - (new_size + ((flags & WSP_TOP) != 0)), flags & WSP_TOP, FALSE); } else win_new_width(oldwin, oldwin->w_width - (new_size + 1)); if (before) { /* new window left of current one */ wp->w_wincol = oldwin->w_wincol; oldwin->w_wincol += new_size + 1; } else /* new window right of current one */ wp->w_wincol = oldwin->w_wincol + oldwin->w_width + 1; frame_fix_width(oldwin); frame_fix_width(wp); } else { /* width and column of new window is same as current window */ if (flags & (WSP_TOP | WSP_BOT)) { wp->w_wincol = 0; win_new_width(wp, Columns); wp->w_vsep_width = 0; } else { wp->w_wincol = oldwin->w_wincol; win_new_width(wp, oldwin->w_width); wp->w_vsep_width = oldwin->w_vsep_width; } frp->fr_width = curfrp->fr_width; /* "new_size" of the current window goes to the new window, use * one row for the status line */ win_new_height(wp, new_size); if (flags & (WSP_TOP | WSP_BOT)) { int new_fr_height = curfrp->fr_height - new_size; if (!((flags & WSP_BOT) && p_ls == 0)) { new_fr_height -= STATUS_HEIGHT; } frame_new_height(curfrp, new_fr_height, flags & WSP_TOP, false); } else { win_new_height(oldwin, oldwin_height - (new_size + STATUS_HEIGHT)); } if (before) { // new window above current one wp->w_winrow = oldwin->w_winrow; wp->w_status_height = STATUS_HEIGHT; oldwin->w_winrow += wp->w_height + STATUS_HEIGHT; } else { // new window below current one wp->w_winrow = oldwin->w_winrow + oldwin->w_height + STATUS_HEIGHT; wp->w_status_height = oldwin->w_status_height; if (!(flags & WSP_BOT)) { oldwin->w_status_height = STATUS_HEIGHT; } } if (flags & WSP_BOT) frame_add_statusline(curfrp); frame_fix_height(wp); frame_fix_height(oldwin); } if (flags & (WSP_TOP | WSP_BOT)) (void)win_comp_pos(); // Both windows need redrawing. Update all status lines, in case they // show something related to the window count or position. redraw_later(wp, NOT_VALID); redraw_later(oldwin, NOT_VALID); status_redraw_all(); if (need_status) { msg_row = Rows - 1; msg_col = sc_col; msg_clr_eos_force(); /* Old command/ruler may still be there */ comp_col(); msg_row = Rows - 1; msg_col = 0; /* put position back at start of line */ } /* * equalize the window sizes. */ if (do_equal || dir != 0) win_equal(wp, true, (flags & WSP_VERT) ? (dir == 'v' ? 'b' : 'h') : dir == 'h' ? 'b' : 'v'); /* Don't change the window height/width to 'winheight' / 'winwidth' if a * size was given. */ if (flags & WSP_VERT) { i = p_wiw; if (size != 0) p_wiw = size; } else { i = p_wh; if (size != 0) p_wh = size; } // Keep same changelist position in new window. wp->w_changelistidx = oldwin->w_changelistidx; /* * make the new window the current window */ win_enter_ext(wp, false, false, true, true, true); if (flags & WSP_VERT) { p_wiw = i; } else { p_wh = i; } if (!win_valid(oldwin)) { return FAIL; } // Send the window positions to the UI oldwin->w_pos_changed = true; return OK; } /* * Initialize window "newp" from window "oldp". * Used when splitting a window and when creating a new tab page. * The windows will both edit the same buffer. * WSP_NEWLOC may be specified in flags to prevent the location list from * being copied. */ static void win_init(win_T *newp, win_T *oldp, int flags) { int i; newp->w_buffer = oldp->w_buffer; newp->w_s = &(oldp->w_buffer->b_s); oldp->w_buffer->b_nwindows++; newp->w_cursor = oldp->w_cursor; newp->w_valid = 0; newp->w_curswant = oldp->w_curswant; newp->w_set_curswant = oldp->w_set_curswant; newp->w_topline = oldp->w_topline; newp->w_topfill = oldp->w_topfill; newp->w_leftcol = oldp->w_leftcol; newp->w_pcmark = oldp->w_pcmark; newp->w_prev_pcmark = oldp->w_prev_pcmark; newp->w_alt_fnum = oldp->w_alt_fnum; newp->w_wrow = oldp->w_wrow; newp->w_fraction = oldp->w_fraction; newp->w_prev_fraction_row = oldp->w_prev_fraction_row; copy_jumplist(oldp, newp); if (flags & WSP_NEWLOC) { /* Don't copy the location list. */ newp->w_llist = NULL; newp->w_llist_ref = NULL; } else { copy_loclist_stack(oldp, newp); } newp->w_localdir = (oldp->w_localdir == NULL) ? NULL : vim_strsave(oldp->w_localdir); /* copy tagstack and folds */ for (i = 0; i < oldp->w_tagstacklen; i++) { taggy_T *tag = &newp->w_tagstack[i]; *tag = oldp->w_tagstack[i]; if (tag->tagname != NULL) { tag->tagname = vim_strsave(tag->tagname); } if (tag->user_data != NULL) { tag->user_data = vim_strsave(tag->user_data); } } newp->w_tagstackidx = oldp->w_tagstackidx; newp->w_tagstacklen = oldp->w_tagstacklen; copyFoldingState(oldp, newp); win_init_some(newp, oldp); didset_window_options(newp); } /* * Initialize window "newp" from window "old". * Only the essential things are copied. */ static void win_init_some(win_T *newp, win_T *oldp) { /* Use the same argument list. */ newp->w_alist = oldp->w_alist; ++newp->w_alist->al_refcount; newp->w_arg_idx = oldp->w_arg_idx; /* copy options from existing window */ win_copy_options(oldp, newp); } /// Return TRUE if "win" is floating window in the current tab page. /// /// @param win window to check bool win_valid_floating(const win_T *win) FUNC_ATTR_PURE FUNC_ATTR_WARN_UNUSED_RESULT { if (win == NULL) { return false; } FOR_ALL_WINDOWS_IN_TAB(wp, curtab) { if (wp == win) { return wp->w_floating; } } return false; } /// Check if "win" is a pointer to an existing window in the current tabpage. /// /// @param win window to check bool win_valid(const win_T *win) FUNC_ATTR_PURE FUNC_ATTR_WARN_UNUSED_RESULT { if (win == NULL) { return false; } FOR_ALL_WINDOWS_IN_TAB(wp, curtab) { if (wp == win) { return true; } } return false; } // Find window "handle" in the current tab page. // Return NULL if not found. win_T *win_find_by_handle(handle_T handle) FUNC_ATTR_PURE FUNC_ATTR_WARN_UNUSED_RESULT { FOR_ALL_WINDOWS_IN_TAB(wp, curtab) { if (wp->handle == handle) { return wp; } } return NULL; } /// Check if "win" is a pointer to an existing window in any tabpage. /// /// @param win window to check bool win_valid_any_tab(win_T *win) FUNC_ATTR_PURE FUNC_ATTR_WARN_UNUSED_RESULT { if (win == NULL) { return false; } FOR_ALL_TAB_WINDOWS(tp, wp) { if (wp == win) { return true; } } return false; } /* * Return the number of windows. */ int win_count(void) { int count = 0; FOR_ALL_WINDOWS_IN_TAB(wp, curtab) { ++count; } return count; } /* * Make "count" windows on the screen. * Return actual number of windows on the screen. * Must be called when there is just one window, filling the whole screen * (excluding the command line). */ int make_windows ( int count, int vertical /* split windows vertically if TRUE */ ) { int maxcount; int todo; if (vertical) { /* Each windows needs at least 'winminwidth' lines and a separator * column. */ maxcount = (curwin->w_width + curwin->w_vsep_width - (p_wiw - p_wmw)) / (p_wmw + 1); } else { // Each window needs at least 'winminheight' lines and a status line. maxcount = (curwin->w_height + curwin->w_status_height - (p_wh - p_wmh)) / (p_wmh + STATUS_HEIGHT); } if (maxcount < 2) maxcount = 2; if (count > maxcount) count = maxcount; /* * add status line now, otherwise first window will be too big */ if (count > 1) last_status(TRUE); /* * Don't execute autocommands while creating the windows. Must do that * when putting the buffers in the windows. */ block_autocmds(); /* todo is number of windows left to create */ for (todo = count - 1; todo > 0; --todo) if (vertical) { if (win_split(curwin->w_width - (curwin->w_width - todo) / (todo + 1) - 1, WSP_VERT | WSP_ABOVE) == FAIL) break; } else { if (win_split(curwin->w_height - (curwin->w_height - todo * STATUS_HEIGHT) / (todo + 1) - STATUS_HEIGHT, WSP_ABOVE) == FAIL) break; } unblock_autocmds(); /* return actual number of windows */ return count - todo; } /* * Exchange current and next window */ static void win_exchange(long Prenum) { frame_T *frp; frame_T *frp2; win_T *wp; win_T *wp2; int temp; if (curwin->w_floating) { EMSG(e_floatexchange); return; } if (firstwin == curwin && lastwin_nofloating() == curwin) { // just one window beep_flush(); return; } /* * find window to exchange with */ if (Prenum) { frp = curwin->w_frame->fr_parent->fr_child; while (frp != NULL && --Prenum > 0) frp = frp->fr_next; } else if (curwin->w_frame->fr_next != NULL) /* Swap with next */ frp = curwin->w_frame->fr_next; else /* Swap last window in row/col with previous */ frp = curwin->w_frame->fr_prev; /* We can only exchange a window with another window, not with a frame * containing windows. */ if (frp == NULL || frp->fr_win == NULL || frp->fr_win == curwin) return; wp = frp->fr_win; /* * 1. remove curwin from the list. Remember after which window it was in wp2 * 2. insert curwin before wp in the list * if wp != wp2 * 3. remove wp from the list * 4. insert wp after wp2 * 5. exchange the status line height and vsep width. */ wp2 = curwin->w_prev; frp2 = curwin->w_frame->fr_prev; if (wp->w_prev != curwin) { win_remove(curwin, NULL); frame_remove(curwin->w_frame); win_append(wp->w_prev, curwin); frame_insert(frp, curwin->w_frame); } if (wp != wp2) { win_remove(wp, NULL); frame_remove(wp->w_frame); win_append(wp2, wp); if (frp2 == NULL) frame_insert(wp->w_frame->fr_parent->fr_child, wp->w_frame); else frame_append(frp2, wp->w_frame); } temp = curwin->w_status_height; curwin->w_status_height = wp->w_status_height; wp->w_status_height = temp; temp = curwin->w_vsep_width; curwin->w_vsep_width = wp->w_vsep_width; wp->w_vsep_width = temp; /* If the windows are not in the same frame, exchange the sizes to avoid * messing up the window layout. Otherwise fix the frame sizes. */ if (curwin->w_frame->fr_parent != wp->w_frame->fr_parent) { temp = curwin->w_height; curwin->w_height = wp->w_height; wp->w_height = temp; temp = curwin->w_width; curwin->w_width = wp->w_width; wp->w_width = temp; } else { frame_fix_height(curwin); frame_fix_height(wp); frame_fix_width(curwin); frame_fix_width(wp); } (void)win_comp_pos(); /* recompute window positions */ win_enter(wp, true); redraw_later(curwin, NOT_VALID); redraw_later(wp, NOT_VALID); } // rotate windows: if upwards true the second window becomes the first one // if upwards false the first window becomes the second one static void win_rotate(bool upwards, int count) { win_T *wp1; win_T *wp2; frame_T *frp; int n; if (curwin->w_floating) { EMSG(e_floatexchange); return; } if (count <= 0 || (firstwin == curwin && lastwin_nofloating() == curwin)) { // nothing to do beep_flush(); return; } // Check if all frames in this row/col have one window. FOR_ALL_FRAMES(frp, curwin->w_frame->fr_parent->fr_child) { if (frp->fr_win == NULL) { EMSG(_("E443: Cannot rotate when another window is split")); return; } } while (count--) { if (upwards) { /* first window becomes last window */ /* remove first window/frame from the list */ frp = curwin->w_frame->fr_parent->fr_child; assert(frp != NULL); wp1 = frp->fr_win; win_remove(wp1, NULL); frame_remove(frp); assert(frp->fr_parent->fr_child); /* find last frame and append removed window/frame after it */ for (; frp->fr_next != NULL; frp = frp->fr_next) ; win_append(frp->fr_win, wp1); frame_append(frp, wp1->w_frame); wp2 = frp->fr_win; /* previously last window */ } else { /* last window becomes first window */ /* find last window/frame in the list and remove it */ for (frp = curwin->w_frame; frp->fr_next != NULL; frp = frp->fr_next) ; wp1 = frp->fr_win; wp2 = wp1->w_prev; /* will become last window */ win_remove(wp1, NULL); frame_remove(frp); assert(frp->fr_parent->fr_child); /* append the removed window/frame before the first in the list */ win_append(frp->fr_parent->fr_child->fr_win->w_prev, wp1); frame_insert(frp->fr_parent->fr_child, frp); } /* exchange status height and vsep width of old and new last window */ n = wp2->w_status_height; wp2->w_status_height = wp1->w_status_height; wp1->w_status_height = n; frame_fix_height(wp1); frame_fix_height(wp2); n = wp2->w_vsep_width; wp2->w_vsep_width = wp1->w_vsep_width; wp1->w_vsep_width = n; frame_fix_width(wp1); frame_fix_width(wp2); /* recompute w_winrow and w_wincol for all windows */ (void)win_comp_pos(); } wp1->w_pos_changed = true; wp2->w_pos_changed = true; redraw_all_later(NOT_VALID); } /* * Move the current window to the very top/bottom/left/right of the screen. */ static void win_totop(int size, int flags) { int dir = 0; int height = curwin->w_height; if (firstwin == curwin && lastwin_nofloating() == curwin) { beep_flush(); return; } if (curwin->w_floating) { ui_comp_remove_grid(&curwin->w_grid_alloc); if (ui_has(kUIMultigrid)) { curwin->w_pos_changed = true; } else { // No longer a float, a non-multigrid UI shouldn't draw it as such ui_call_win_hide(curwin->w_grid_alloc.handle); win_free_grid(curwin, false); } } else { // Remove the window and frame from the tree of frames. (void)winframe_remove(curwin, &dir, NULL); } win_remove(curwin, NULL); last_status(FALSE); /* may need to remove last status line */ (void)win_comp_pos(); /* recompute window positions */ /* Split a window on the desired side and put the window there. */ (void)win_split_ins(size, flags, curwin, dir); if (!(flags & WSP_VERT)) { win_setheight(height); if (p_ea) win_equal(curwin, true, 'v'); } } /* * Move window "win1" to below/right of "win2" and make "win1" the current * window. Only works within the same frame! */ void win_move_after(win_T *win1, win_T *win2) { int height; /* check if the arguments are reasonable */ if (win1 == win2) return; /* check if there is something to do */ if (win2->w_next != win1) { /* may need move the status line/vertical separator of the last window * */ if (win1 == lastwin) { height = win1->w_prev->w_status_height; win1->w_prev->w_status_height = win1->w_status_height; win1->w_status_height = height; if (win1->w_prev->w_vsep_width == 1) { /* Remove the vertical separator from the last-but-one window, * add it to the last window. Adjust the frame widths. */ win1->w_prev->w_vsep_width = 0; win1->w_prev->w_frame->fr_width -= 1; win1->w_vsep_width = 1; win1->w_frame->fr_width += 1; } } else if (win2 == lastwin) { height = win1->w_status_height; win1->w_status_height = win2->w_status_height; win2->w_status_height = height; if (win1->w_vsep_width == 1) { /* Remove the vertical separator from win1, add it to the last * window, win2. Adjust the frame widths. */ win2->w_vsep_width = 1; win2->w_frame->fr_width += 1; win1->w_vsep_width = 0; win1->w_frame->fr_width -= 1; } } win_remove(win1, NULL); frame_remove(win1->w_frame); win_append(win2, win1); frame_append(win2->w_frame, win1->w_frame); (void)win_comp_pos(); // recompute w_winrow for all windows redraw_later(curwin, NOT_VALID); } win_enter(win1, false); win1->w_pos_changed = true; win2->w_pos_changed = true; } /* * Make all windows the same height. * 'next_curwin' will soon be the current window, make sure it has enough * rows. */ void win_equal( win_T *next_curwin, // pointer to current window to be or NULL bool current, // do only frame with current window int dir // 'v' for vertically, 'h' for horizontally, // 'b' for both, 0 for using p_ead ) { if (dir == 0) dir = *p_ead; win_equal_rec(next_curwin == NULL ? curwin : next_curwin, current, topframe, dir, 0, tabline_height(), Columns, topframe->fr_height); } /* * Set a frame to a new position and height, spreading the available room * equally over contained frames. * The window "next_curwin" (if not NULL) should at least get the size from * 'winheight' and 'winwidth' if possible. */ static void win_equal_rec( win_T *next_curwin, /* pointer to current window to be or NULL */ bool current, /* do only frame with current window */ frame_T *topfr, /* frame to set size off */ int dir, /* 'v', 'h' or 'b', see win_equal() */ int col, /* horizontal position for frame */ int row, /* vertical position for frame */ int width, /* new width of frame */ int height /* new height of frame */ ) { int n, m; int extra_sep = 0; int wincount, totwincount = 0; frame_T *fr; int next_curwin_size = 0; int room = 0; int new_size; int has_next_curwin = 0; int hnc; if (topfr->fr_layout == FR_LEAF) { /* Set the width/height of this frame. * Redraw when size or position changes */ if (topfr->fr_height != height || topfr->fr_win->w_winrow != row || topfr->fr_width != width || topfr->fr_win->w_wincol != col ) { topfr->fr_win->w_winrow = row; frame_new_height(topfr, height, false, false); topfr->fr_win->w_wincol = col; frame_new_width(topfr, width, false, false); redraw_all_later(NOT_VALID); } } else if (topfr->fr_layout == FR_ROW) { topfr->fr_width = width; topfr->fr_height = height; if (dir != 'v') { /* equalize frame widths */ /* Compute the maximum number of windows horizontally in this * frame. */ n = frame_minwidth(topfr, NOWIN); /* add one for the rightmost window, it doesn't have a separator */ if (col + width == Columns) extra_sep = 1; else extra_sep = 0; totwincount = (n + extra_sep) / (p_wmw + 1); has_next_curwin = frame_has_win(topfr, next_curwin); /* * Compute width for "next_curwin" window and room available for * other windows. * "m" is the minimal width when counting p_wiw for "next_curwin". */ m = frame_minwidth(topfr, next_curwin); room = width - m; if (room < 0) { next_curwin_size = p_wiw + room; room = 0; } else { next_curwin_size = -1; FOR_ALL_FRAMES(fr, topfr->fr_child) { // If 'winfixwidth' set keep the window width if // possible. // Watch out for this window being the next_curwin. if (!frame_fixed_width(fr)) { continue; } n = frame_minwidth(fr, NOWIN); new_size = fr->fr_width; if (frame_has_win(fr, next_curwin)) { room += p_wiw - p_wmw; next_curwin_size = 0; if (new_size < p_wiw) new_size = p_wiw; } else /* These windows don't use up room. */ totwincount -= (n + (fr->fr_next == NULL ? extra_sep : 0)) / (p_wmw + 1); room -= new_size - n; if (room < 0) { new_size += room; room = 0; } fr->fr_newwidth = new_size; } if (next_curwin_size == -1) { if (!has_next_curwin) next_curwin_size = 0; else if (totwincount > 1 && (room + (totwincount - 2)) / (totwincount - 1) > p_wiw) { /* Can make all windows wider than 'winwidth', spread * the room equally. */ next_curwin_size = (room + p_wiw + (totwincount - 1) * p_wmw + (totwincount - 1)) / totwincount; room -= next_curwin_size - p_wiw; } else next_curwin_size = p_wiw; } } if (has_next_curwin) --totwincount; /* don't count curwin */ } FOR_ALL_FRAMES(fr, topfr->fr_child) { wincount = 1; if (fr->fr_next == NULL) /* last frame gets all that remains (avoid roundoff error) */ new_size = width; else if (dir == 'v') new_size = fr->fr_width; else if (frame_fixed_width(fr)) { new_size = fr->fr_newwidth; wincount = 0; /* doesn't count as a sizeable window */ } else { /* Compute the maximum number of windows horiz. in "fr". */ n = frame_minwidth(fr, NOWIN); wincount = (n + (fr->fr_next == NULL ? extra_sep : 0)) / (p_wmw + 1); m = frame_minwidth(fr, next_curwin); if (has_next_curwin) hnc = frame_has_win(fr, next_curwin); else hnc = FALSE; if (hnc) /* don't count next_curwin */ --wincount; if (totwincount == 0) new_size = room; else new_size = (wincount * room + (totwincount / 2)) / totwincount; if (hnc) { /* add next_curwin size */ next_curwin_size -= p_wiw - (m - n); new_size += next_curwin_size; room -= new_size - next_curwin_size; } else room -= new_size; new_size += n; } /* Skip frame that is full width when splitting or closing a * window, unless equalizing all frames. */ if (!current || dir != 'v' || topfr->fr_parent != NULL || (new_size != fr->fr_width) || frame_has_win(fr, next_curwin)) win_equal_rec(next_curwin, current, fr, dir, col, row, new_size, height); col += new_size; width -= new_size; totwincount -= wincount; } } else { /* topfr->fr_layout == FR_COL */ topfr->fr_width = width; topfr->fr_height = height; if (dir != 'h') { /* equalize frame heights */ /* Compute maximum number of windows vertically in this frame. */ n = frame_minheight(topfr, NOWIN); /* add one for the bottom window if it doesn't have a statusline */ if (row + height == cmdline_row && p_ls == 0) extra_sep = 1; else extra_sep = 0; totwincount = (n + extra_sep) / (p_wmh + 1); has_next_curwin = frame_has_win(topfr, next_curwin); /* * Compute height for "next_curwin" window and room available for * other windows. * "m" is the minimal height when counting p_wh for "next_curwin". */ m = frame_minheight(topfr, next_curwin); room = height - m; if (room < 0) { /* The room is less then 'winheight', use all space for the * current window. */ next_curwin_size = p_wh + room; room = 0; } else { next_curwin_size = -1; FOR_ALL_FRAMES(fr, topfr->fr_child) { // If 'winfixheight' set keep the window height if // possible. // Watch out for this window being the next_curwin. if (!frame_fixed_height(fr)) { continue; } n = frame_minheight(fr, NOWIN); new_size = fr->fr_height; if (frame_has_win(fr, next_curwin)) { room += p_wh - p_wmh; next_curwin_size = 0; if (new_size < p_wh) new_size = p_wh; } else /* These windows don't use up room. */ totwincount -= (n + (fr->fr_next == NULL ? extra_sep : 0)) / (p_wmh + 1); room -= new_size - n; if (room < 0) { new_size += room; room = 0; } fr->fr_newheight = new_size; } if (next_curwin_size == -1) { if (!has_next_curwin) next_curwin_size = 0; else if (totwincount > 1 && (room + (totwincount - 2)) / (totwincount - 1) > p_wh) { /* can make all windows higher than 'winheight', * spread the room equally. */ next_curwin_size = (room + p_wh + (totwincount - 1) * p_wmh + (totwincount - 1)) / totwincount; room -= next_curwin_size - p_wh; } else next_curwin_size = p_wh; } } if (has_next_curwin) --totwincount; /* don't count curwin */ } FOR_ALL_FRAMES(fr, topfr->fr_child) { wincount = 1; if (fr->fr_next == NULL) /* last frame gets all that remains (avoid roundoff error) */ new_size = height; else if (dir == 'h') new_size = fr->fr_height; else if (frame_fixed_height(fr)) { new_size = fr->fr_newheight; wincount = 0; /* doesn't count as a sizeable window */ } else { /* Compute the maximum number of windows vert. in "fr". */ n = frame_minheight(fr, NOWIN); wincount = (n + (fr->fr_next == NULL ? extra_sep : 0)) / (p_wmh + 1); m = frame_minheight(fr, next_curwin); if (has_next_curwin) hnc = frame_has_win(fr, next_curwin); else hnc = FALSE; if (hnc) /* don't count next_curwin */ --wincount; if (totwincount == 0) new_size = room; else new_size = (wincount * room + (totwincount / 2)) / totwincount; if (hnc) { /* add next_curwin size */ next_curwin_size -= p_wh - (m - n); new_size += next_curwin_size; room -= new_size - next_curwin_size; } else room -= new_size; new_size += n; } /* Skip frame that is full width when splitting or closing a * window, unless equalizing all frames. */ if (!current || dir != 'h' || topfr->fr_parent != NULL || (new_size != fr->fr_height) || frame_has_win(fr, next_curwin)) win_equal_rec(next_curwin, current, fr, dir, col, row, width, new_size); row += new_size; height -= new_size; totwincount -= wincount; } } } /// Closes all windows for buffer `buf`. /// /// @param keep_curwin don't close `curwin` void close_windows(buf_T *buf, int keep_curwin) { tabpage_T *tp, *nexttp; int h = tabline_height(); ++RedrawingDisabled; for (win_T *wp = firstwin; wp != NULL && !ONE_WINDOW; ) { if (wp->w_buffer == buf && (!keep_curwin || wp != curwin) && !(wp->w_closing || wp->w_buffer->b_locked > 0)) { if (win_close(wp, false) == FAIL) { // If closing the window fails give up, to avoid looping forever. break; } /* Start all over, autocommands may change the window layout. */ wp = firstwin; } else wp = wp->w_next; } /* Also check windows in other tab pages. */ for (tp = first_tabpage; tp != NULL; tp = nexttp) { nexttp = tp->tp_next; if (tp != curtab) { FOR_ALL_WINDOWS_IN_TAB(wp, tp) { if (wp->w_buffer == buf && !(wp->w_closing || wp->w_buffer->b_locked > 0)) { win_close_othertab(wp, false, tp); /* Start all over, the tab page may be closed and * autocommands may change the window layout. */ nexttp = first_tabpage; break; } } } } --RedrawingDisabled; redraw_tabline = true; if (h != tabline_height()) { shell_new_rows(); } } /// Check that current window is the last one. /// /// @return true if the current window is the only window that exists, false if /// there is another, possibly in another tab page. static bool last_window(void) FUNC_ATTR_PURE FUNC_ATTR_WARN_UNUSED_RESULT { return one_window() && first_tabpage->tp_next == NULL; } /// Check that current tab page contains no more then one window other than /// "aucmd_win". Only counts floating window if it is current. bool one_window(void) FUNC_ATTR_PURE FUNC_ATTR_WARN_UNUSED_RESULT { bool seen_one = false; FOR_ALL_WINDOWS_IN_TAB(wp, curtab) { if (wp != aucmd_win && (!wp->w_floating || wp == curwin)) { if (seen_one) { return false; } seen_one = true; } } return true; } /// Like ONE_WINDOW but only considers non-floating windows bool one_nonfloat(void) FUNC_ATTR_PURE FUNC_ATTR_WARN_UNUSED_RESULT { return firstwin->w_next == NULL || firstwin->w_next->w_floating; } /// if wp is the last non-floating window /// /// always false for a floating window bool last_nonfloat(win_T *wp) FUNC_ATTR_PURE FUNC_ATTR_WARN_UNUSED_RESULT { return wp != NULL && firstwin == wp && !(wp->w_next && !wp->w_floating); } /// Close the possibly last window in a tab page. /// /// @param win window to close /// @param free_buf whether to free the window's current buffer /// @param prev_curtab previous tabpage that will be closed if "win" is the /// last window in the tabpage /// /// @return true when the window was closed already. static bool close_last_window_tabpage(win_T *win, bool free_buf, tabpage_T *prev_curtab) FUNC_ATTR_NONNULL_ARG(1) { if (!ONE_WINDOW) { return false; } buf_T *old_curbuf = curbuf; Terminal *term = win->w_buffer ? win->w_buffer->terminal : NULL; if (term) { // Don't free terminal buffers free_buf = false; } /* * Closing the last window in a tab page. First go to another tab * page and then close the window and the tab page. This avoids that * curwin and curtab are invalid while we are freeing memory, they may * be used in GUI events. * Don't trigger autocommands yet, they may use wrong values, so do * that below. */ goto_tabpage_tp(alt_tabpage(), FALSE, TRUE); redraw_tabline = TRUE; // save index for tabclosed event char_u prev_idx[NUMBUFLEN]; sprintf((char *)prev_idx, "%i", tabpage_index(prev_curtab)); /* Safety check: Autocommands may have closed the window when jumping * to the other tab page. */ if (valid_tabpage(prev_curtab) && prev_curtab->tp_firstwin == win) { int h = tabline_height(); win_close_othertab(win, free_buf, prev_curtab); if (h != tabline_height()) shell_new_rows(); } // Since goto_tabpage_tp above did not trigger *Enter autocommands, do // that now. apply_autocmds(EVENT_WINENTER, NULL, NULL, false, curbuf); apply_autocmds(EVENT_TABENTER, NULL, NULL, false, curbuf); if (old_curbuf != curbuf) { apply_autocmds(EVENT_BUFENTER, NULL, NULL, false, curbuf); } return true; } // Close window "win". Only works for the current tab page. // If "free_buf" is true related buffer may be unloaded. // // Called by :quit, :close, :xit, :wq and findtag(). // Returns FAIL when the window was not closed. int win_close(win_T *win, bool free_buf) { win_T *wp; int other_buffer = FALSE; int close_curwin = FALSE; int dir; bool help_window = false; tabpage_T *prev_curtab = curtab; frame_T *win_frame = win->w_floating ? NULL : win->w_frame->fr_parent; const bool had_diffmode = win->w_p_diff; if (last_window() && !win->w_floating) { EMSG(_("E444: Cannot close last window")); return FAIL; } if (win->w_closing || (win->w_buffer != NULL && win->w_buffer->b_locked > 0)) { return FAIL; // window is already being closed } if (win == aucmd_win) { EMSG(_(e_autocmd_close)); return FAIL; } if ((firstwin == aucmd_win || lastwin == aucmd_win) && one_window()) { EMSG(_("E814: Cannot close window, only autocmd window would remain")); return FAIL; } if ((firstwin == win && lastwin_nofloating() == win) && lastwin->w_floating) { // TODO(bfredl): we might close the float also instead EMSG(e_floatonly); return FAIL; } /* When closing the last window in a tab page first go to another tab page * and then close the window and the tab page to avoid that curwin and * curtab are invalid while we are freeing memory. */ if (close_last_window_tabpage(win, free_buf, prev_curtab)) return FAIL; /* When closing the help window, try restoring a snapshot after closing * the window. Otherwise clear the snapshot, it's now invalid. */ if (bt_help(win->w_buffer)) { help_window = true; } else { clear_snapshot(curtab, SNAP_HELP_IDX); } if (win == curwin) { /* * Guess which window is going to be the new current window. * This may change because of the autocommands (sigh). */ if (!win->w_floating) { wp = frame2win(win_altframe(win, NULL)); } else { if (win_valid(prevwin) && prevwin != win) { wp = prevwin; } else { wp = firstwin; } } /* * Be careful: If autocommands delete the window or cause this window * to be the last one left, return now. */ if (wp->w_buffer != curbuf) { other_buffer = TRUE; win->w_closing = true; apply_autocmds(EVENT_BUFLEAVE, NULL, NULL, FALSE, curbuf); if (!win_valid(win)) return FAIL; win->w_closing = false; if (last_window()) return FAIL; } win->w_closing = true; apply_autocmds(EVENT_WINLEAVE, NULL, NULL, false, curbuf); if (!win_valid(win)) { return FAIL; } win->w_closing = false; if (last_window()) return FAIL; /* autocmds may abort script processing */ if (aborting()) return FAIL; } bool was_floating = win->w_floating; if (ui_has(kUIMultigrid)) { ui_call_win_close(win->w_grid_alloc.handle); } if (win->w_floating) { ui_comp_remove_grid(&win->w_grid_alloc); if (win->w_float_config.external) { for (tabpage_T *tp = first_tabpage; tp != NULL; tp = tp->tp_next) { if (tp == curtab) { continue; } if (tp->tp_curwin == win) { // NB: an autocmd can still abort the closing of this window, // bur carring out this change anyway shouldn't be a catastrophe. tp->tp_curwin = tp->tp_firstwin; } } } } // Fire WinClosed just before starting to free window-related resources. do_autocmd_winclosed(win); // autocmd may have freed the window already. if (!win_valid_any_tab(win)) { return OK; } // Free independent synblock before the buffer is freed. if (win->w_buffer != NULL) { reset_synblock(win); } /* * Close the link to the buffer. */ if (win->w_buffer != NULL) { bufref_T bufref; set_bufref(&bufref, curbuf); win->w_closing = true; close_buffer(win, win->w_buffer, free_buf ? DOBUF_UNLOAD : 0, true); if (win_valid_any_tab(win)) { win->w_closing = false; } // Make sure curbuf is valid. It can become invalid if 'bufhidden' is // "wipe". if (!bufref_valid(&bufref)) { curbuf = firstbuf; } } if (only_one_window() && win_valid(win) && win->w_buffer == NULL && (last_window() || curtab != prev_curtab || close_last_window_tabpage(win, free_buf, prev_curtab)) && !win->w_floating) { // Autocommands have closed all windows, quit now. Restore // curwin->w_buffer, otherwise writing ShaDa file may fail. if (curwin->w_buffer == NULL) { curwin->w_buffer = curbuf; } getout(0); } // Autocommands may have moved to another tab page. if (curtab != prev_curtab && win_valid_any_tab(win) && win->w_buffer == NULL) { // Need to close the window anyway, since the buffer is NULL. win_close_othertab(win, false, prev_curtab); return FAIL; } // Autocommands may have closed the window already, or closed the only // other window or moved to another tab page. if (!win_valid(win) || (!win->w_floating && last_window()) || close_last_window_tabpage(win, free_buf, prev_curtab)) { return FAIL; } // let terminal buffers know that this window dimensions may be ignored win->w_closing = true; // Free the memory used for the window and get the window that received // the screen space. wp = win_free_mem(win, &dir, NULL); if (help_window) { // Closing the help window moves the cursor back to the original window. win_T *tmpwp = get_snapshot_focus(SNAP_HELP_IDX); if (tmpwp != NULL) { wp = tmpwp; } } /* Make sure curwin isn't invalid. It can cause severe trouble when * printing an error message. For win_equal() curbuf needs to be valid * too. */ if (win == curwin) { curwin = wp; if (wp->w_p_pvw || bt_quickfix(wp->w_buffer)) { /* * If the cursor goes to the preview or the quickfix window, try * finding another window to go to. */ for (;; ) { if (wp->w_next == NULL) wp = firstwin; else wp = wp->w_next; if (wp == curwin) break; if (!wp->w_p_pvw && !bt_quickfix(wp->w_buffer)) { curwin = wp; break; } } } curbuf = curwin->w_buffer; close_curwin = TRUE; // The cursor position may be invalid if the buffer changed after last // using the window. check_cursor(); } if (!was_floating) { if (!curwin->w_floating && p_ea && (*p_ead == 'b' || *p_ead == dir)) { // If the frame of the closed window contains the new current window, // only resize that frame. Otherwise resize all windows. win_equal(curwin, curwin->w_frame->fr_parent == win_frame, dir); } else { (void)win_comp_pos(); } } if (close_curwin) { win_enter_ext(wp, false, true, false, true, true); if (other_buffer) { // careful: after this wp and win may be invalid! apply_autocmds(EVENT_BUFENTER, NULL, NULL, false, curbuf); } } /* * If last window has a status line now and we don't want one, * remove the status line. */ last_status(FALSE); /* After closing the help window, try restoring the window layout from * before it was opened. */ if (help_window) restore_snapshot(SNAP_HELP_IDX, close_curwin); // If the window had 'diff' set and now there is only one window left in // the tab page with 'diff' set, and "closeoff" is in 'diffopt', then // execute ":diffoff!". if (diffopt_closeoff() && had_diffmode && curtab == prev_curtab) { int diffcount = 0; FOR_ALL_WINDOWS_IN_TAB(dwin, curtab) { if (dwin->w_p_diff) { diffcount++; } } if (diffcount == 1) { do_cmdline_cmd("diffoff!"); } } curwin->w_pos_changed = true; redraw_all_later(NOT_VALID); return OK; } static void do_autocmd_winclosed(win_T *win) FUNC_ATTR_NONNULL_ALL { static bool recursive = false; if (recursive || !has_event(EVENT_WINCLOSED)) { return; } recursive = true; char_u winid[NUMBUFLEN]; vim_snprintf((char *)winid, sizeof(winid), "%i", win->handle); apply_autocmds(EVENT_WINCLOSED, winid, winid, false, win->w_buffer); recursive = false; } /* * Close window "win" in tab page "tp", which is not the current tab page. * This may be the last window in that tab page and result in closing the tab, * thus "tp" may become invalid! * Caller must check if buffer is hidden and whether the tabline needs to be * updated. */ void win_close_othertab(win_T *win, int free_buf, tabpage_T *tp) { int dir; tabpage_T *ptp = NULL; int free_tp = FALSE; // Get here with win->w_buffer == NULL when win_close() detects the tab page // changed. if (win->w_closing || (win->w_buffer != NULL && win->w_buffer->b_locked > 0)) { return; // window is already being closed } // Fire WinClosed just before starting to free window-related resources. do_autocmd_winclosed(win); // autocmd may have freed the window already. if (!win_valid_any_tab(win)) { return; } if (win->w_buffer != NULL) { // Close the link to the buffer. close_buffer(win, win->w_buffer, free_buf ? DOBUF_UNLOAD : 0, false); } /* Careful: Autocommands may have closed the tab page or made it the * current tab page. */ for (ptp = first_tabpage; ptp != NULL && ptp != tp; ptp = ptp->tp_next) ; if (ptp == NULL || tp == curtab) return; /* Autocommands may have closed the window already. */ { bool found_window = false; FOR_ALL_WINDOWS_IN_TAB(wp, tp) { if (wp == win) { found_window = true; break; } } if (!found_window) { return; } } /* When closing the last window in a tab page remove the tab page. */ if (tp->tp_firstwin == tp->tp_lastwin) { char_u prev_idx[NUMBUFLEN]; if (has_event(EVENT_TABCLOSED)) { vim_snprintf((char *)prev_idx, NUMBUFLEN, "%i", tabpage_index(tp)); } if (tp == first_tabpage) { first_tabpage = tp->tp_next; } else { for (ptp = first_tabpage; ptp != NULL && ptp->tp_next != tp; ptp = ptp->tp_next) { // loop } if (ptp == NULL) { internal_error("win_close_othertab()"); return; } ptp->tp_next = tp->tp_next; } free_tp = true; if (has_event(EVENT_TABCLOSED)) { apply_autocmds(EVENT_TABCLOSED, prev_idx, prev_idx, false, win->w_buffer); } } /* Free the memory used for the window. */ win_free_mem(win, &dir, tp); if (free_tp) free_tabpage(tp); } // Free the memory used for a window. // Returns a pointer to the window that got the freed up space. static win_T *win_free_mem( win_T *win, int *dirp, // set to 'v' or 'h' for direction if 'ea' tabpage_T *tp // tab page "win" is in, NULL for current ) { frame_T *frp; win_T *wp; if (!win->w_floating) { // Remove the window and its frame from the tree of frames. frp = win->w_frame; wp = winframe_remove(win, dirp, tp); xfree(frp); } else { *dirp = 'h'; // Dummy value. if (win_valid(prevwin) && prevwin != win) { wp = prevwin; } else { wp = firstwin; } } win_free(win, tp); // When deleting the current window of another tab page select a new // current window. if (tp != NULL && win == tp->tp_curwin) { if (win_valid(tp->tp_prevwin) && tp->tp_prevwin != win) { tp->tp_curwin = tp->tp_prevwin; } else { tp->tp_curwin = tp->tp_firstwin; } } return wp; } #if defined(EXITFREE) void win_free_all(void) { int dummy; while (first_tabpage->tp_next != NULL) tabpage_close(TRUE); while (lastwin != NULL && lastwin->w_floating) { win_T *wp = lastwin; win_remove(lastwin, NULL); (void)win_free_mem(wp, &dummy, NULL); if (wp == aucmd_win) { aucmd_win = NULL; } } if (aucmd_win != NULL) { (void)win_free_mem(aucmd_win, &dummy, NULL); aucmd_win = NULL; } while (firstwin != NULL) (void)win_free_mem(firstwin, &dummy, NULL); // No window should be used after this. Set curwin to NULL to crash // instead of using freed memory. curwin = NULL; } #endif /* * Remove a window and its frame from the tree of frames. * Returns a pointer to the window that got the freed up space. */ win_T * winframe_remove ( win_T *win, int *dirp, /* set to 'v' or 'h' for direction if 'ea' */ tabpage_T *tp /* tab page "win" is in, NULL for current */ ) { frame_T *frp, *frp2, *frp3; frame_T *frp_close = win->w_frame; win_T *wp; /* * If there is only one window there is nothing to remove. */ if (tp == NULL ? ONE_WINDOW : tp->tp_firstwin == tp->tp_lastwin) return NULL; /* * Remove the window from its frame. */ frp2 = win_altframe(win, tp); wp = frame2win(frp2); /* Remove this frame from the list of frames. */ frame_remove(frp_close); if (frp_close->fr_parent->fr_layout == FR_COL) { /* When 'winfixheight' is set, try to find another frame in the column * (as close to the closed frame as possible) to distribute the height * to. */ if (frp2->fr_win != NULL && frp2->fr_win->w_p_wfh) { frp = frp_close->fr_prev; frp3 = frp_close->fr_next; while (frp != NULL || frp3 != NULL) { if (frp != NULL) { if (!frame_fixed_height(frp)) { frp2 = frp; wp = frame2win(frp2); break; } frp = frp->fr_prev; } if (frp3 != NULL) { if (frp3->fr_win != NULL && !frp3->fr_win->w_p_wfh) { frp2 = frp3; wp = frp3->fr_win; break; } frp3 = frp3->fr_next; } } } frame_new_height(frp2, frp2->fr_height + frp_close->fr_height, frp2 == frp_close->fr_next ? TRUE : FALSE, FALSE); *dirp = 'v'; } else { /* When 'winfixwidth' is set, try to find another frame in the column * (as close to the closed frame as possible) to distribute the width * to. */ if (frp2->fr_win != NULL && frp2->fr_win->w_p_wfw) { frp = frp_close->fr_prev; frp3 = frp_close->fr_next; while (frp != NULL || frp3 != NULL) { if (frp != NULL) { if (!frame_fixed_width(frp)) { frp2 = frp; wp = frame2win(frp2); break; } frp = frp->fr_prev; } if (frp3 != NULL) { if (frp3->fr_win != NULL && !frp3->fr_win->w_p_wfw) { frp2 = frp3; wp = frp3->fr_win; break; } frp3 = frp3->fr_next; } } } frame_new_width(frp2, frp2->fr_width + frp_close->fr_width, frp2 == frp_close->fr_next ? TRUE : FALSE, FALSE); *dirp = 'h'; } /* If rows/columns go to a window below/right its positions need to be * updated. Can only be done after the sizes have been updated. */ if (frp2 == frp_close->fr_next) { int row = win->w_winrow; int col = win->w_wincol; frame_comp_pos(frp2, &row, &col); } if (frp2->fr_next == NULL && frp2->fr_prev == NULL) { /* There is no other frame in this list, move its info to the parent * and remove it. */ frp2->fr_parent->fr_layout = frp2->fr_layout; frp2->fr_parent->fr_child = frp2->fr_child; FOR_ALL_FRAMES(frp, frp2->fr_child) { frp->fr_parent = frp2->fr_parent; } frp2->fr_parent->fr_win = frp2->fr_win; if (frp2->fr_win != NULL) frp2->fr_win->w_frame = frp2->fr_parent; frp = frp2->fr_parent; if (topframe->fr_child == frp2) { topframe->fr_child = frp; } xfree(frp2); frp2 = frp->fr_parent; if (frp2 != NULL && frp2->fr_layout == frp->fr_layout) { /* The frame above the parent has the same layout, have to merge * the frames into this list. */ if (frp2->fr_child == frp) frp2->fr_child = frp->fr_child; assert(frp->fr_child); frp->fr_child->fr_prev = frp->fr_prev; if (frp->fr_prev != NULL) frp->fr_prev->fr_next = frp->fr_child; for (frp3 = frp->fr_child;; frp3 = frp3->fr_next) { frp3->fr_parent = frp2; if (frp3->fr_next == NULL) { frp3->fr_next = frp->fr_next; if (frp->fr_next != NULL) frp->fr_next->fr_prev = frp3; break; } } if (topframe->fr_child == frp) { topframe->fr_child = frp2; } xfree(frp); } } return wp; } // Return a pointer to the frame that will receive the empty screen space that // is left over after "win" is closed. // // If 'splitbelow' or 'splitright' is set, the space goes above or to the left // by default. Otherwise, the free space goes below or to the right. The // result is that opening a window and then immediately closing it will // preserve the initial window layout. The 'wfh' and 'wfw' settings are // respected when possible. static frame_T * win_altframe ( win_T *win, tabpage_T *tp /* tab page "win" is in, NULL for current */ ) { frame_T *frp; if (tp == NULL ? ONE_WINDOW : tp->tp_firstwin == tp->tp_lastwin) { return alt_tabpage()->tp_curwin->w_frame; } frp = win->w_frame; if (frp->fr_prev == NULL) { return frp->fr_next; } if (frp->fr_next == NULL) { return frp->fr_prev; } frame_T *target_fr = frp->fr_next; frame_T *other_fr = frp->fr_prev; if (p_spr || p_sb) { target_fr = frp->fr_prev; other_fr = frp->fr_next; } // If 'wfh' or 'wfw' is set for the target and not for the alternate // window, reverse the selection. if (frp->fr_parent != NULL && frp->fr_parent->fr_layout == FR_ROW) { if (frame_fixed_width(target_fr) && !frame_fixed_width(other_fr)) { target_fr = other_fr; } } else { if (frame_fixed_height(target_fr) && !frame_fixed_height(other_fr)) { target_fr = other_fr; } } return target_fr; } /* * Return the tabpage that will be used if the current one is closed. */ static tabpage_T *alt_tabpage(void) { tabpage_T *tp; /* Use the next tab page if possible. */ if (curtab->tp_next != NULL) return curtab->tp_next; /* Find the last but one tab page. */ for (tp = first_tabpage; tp->tp_next != curtab; tp = tp->tp_next) ; return tp; } /* * Find the left-upper window in frame "frp". */ static win_T *frame2win(frame_T *frp) { while (frp->fr_win == NULL) frp = frp->fr_child; return frp->fr_win; } /// Check that the frame "frp" contains the window "wp". /// /// @param frp frame /// @param wp window static bool frame_has_win(const frame_T *frp, const win_T *wp) FUNC_ATTR_PURE FUNC_ATTR_WARN_UNUSED_RESULT FUNC_ATTR_NONNULL_ARG(1) { if (frp->fr_layout == FR_LEAF) { return frp->fr_win == wp; } const frame_T *p; FOR_ALL_FRAMES(p, frp->fr_child) { if (frame_has_win(p, wp)) { return true; } } return false; } /* * Set a new height for a frame. Recursively sets the height for contained * frames and windows. Caller must take care of positions. */ static void frame_new_height ( frame_T *topfrp, int height, int topfirst, /* resize topmost contained frame first */ int wfh /* obey 'winfixheight' when there is a choice; may cause the height not to be set */ ) FUNC_ATTR_NONNULL_ALL { frame_T *frp; int extra_lines; int h; if (topfrp->fr_win != NULL) { // Simple case: just one window. win_new_height(topfrp->fr_win, height - topfrp->fr_win->w_status_height); } else if (topfrp->fr_layout == FR_ROW) { do { // All frames in this row get the same new height. FOR_ALL_FRAMES(frp, topfrp->fr_child) { frame_new_height(frp, height, topfirst, wfh); if (frp->fr_height > height) { /* Could not fit the windows, make the whole row higher. */ height = frp->fr_height; break; } } } while (frp != NULL); } else { /* fr_layout == FR_COL */ /* Complicated case: Resize a column of frames. Resize the bottom * frame first, frames above that when needed. */ frp = topfrp->fr_child; if (wfh) /* Advance past frames with one window with 'wfh' set. */ while (frame_fixed_height(frp)) { frp = frp->fr_next; if (frp == NULL) return; /* no frame without 'wfh', give up */ } if (!topfirst) { /* Find the bottom frame of this column */ while (frp->fr_next != NULL) frp = frp->fr_next; if (wfh) /* Advance back for frames with one window with 'wfh' set. */ while (frame_fixed_height(frp)) frp = frp->fr_prev; } extra_lines = height - topfrp->fr_height; if (extra_lines < 0) { /* reduce height of contained frames, bottom or top frame first */ while (frp != NULL) { h = frame_minheight(frp, NULL); if (frp->fr_height + extra_lines < h) { extra_lines += frp->fr_height - h; frame_new_height(frp, h, topfirst, wfh); } else { frame_new_height(frp, frp->fr_height + extra_lines, topfirst, wfh); break; } if (topfirst) { do frp = frp->fr_next; while (wfh && frp != NULL && frame_fixed_height(frp)); } else { do frp = frp->fr_prev; while (wfh && frp != NULL && frame_fixed_height(frp)); } /* Increase "height" if we could not reduce enough frames. */ if (frp == NULL) height -= extra_lines; } } else if (extra_lines > 0) { /* increase height of bottom or top frame */ frame_new_height(frp, frp->fr_height + extra_lines, topfirst, wfh); } } topfrp->fr_height = height; } /// Return true if height of frame "frp" should not be changed because of /// the 'winfixheight' option. /// /// @param frp frame /// /// @return true if the frame has a fixed height static bool frame_fixed_height(frame_T *frp) FUNC_ATTR_PURE FUNC_ATTR_WARN_UNUSED_RESULT FUNC_ATTR_NONNULL_ALL { // frame with one window: fixed height if 'winfixheight' set. if (frp->fr_win != NULL) { return frp->fr_win->w_p_wfh; } if (frp->fr_layout == FR_ROW) { // The frame is fixed height if one of the frames in the row is fixed // height. FOR_ALL_FRAMES(frp, frp->fr_child) { if (frame_fixed_height(frp)) { return true; } } return false; } // frp->fr_layout == FR_COL: The frame is fixed height if all of the // frames in the row are fixed height. FOR_ALL_FRAMES(frp, frp->fr_child) { if (!frame_fixed_height(frp)) { return false; } } return true; } /// Return true if width of frame "frp" should not be changed because of /// the 'winfixwidth' option. /// /// @param frp frame /// /// @return true if the frame has a fixed width static bool frame_fixed_width(frame_T *frp) FUNC_ATTR_PURE FUNC_ATTR_WARN_UNUSED_RESULT FUNC_ATTR_NONNULL_ALL { // frame with one window: fixed width if 'winfixwidth' set. if (frp->fr_win != NULL) { return frp->fr_win->w_p_wfw; } if (frp->fr_layout == FR_COL) { // The frame is fixed width if one of the frames in the row is fixed // width. FOR_ALL_FRAMES(frp, frp->fr_child) { if (frame_fixed_width(frp)) { return true; } } return false; } // frp->fr_layout == FR_ROW: The frame is fixed width if all of the // frames in the row are fixed width. FOR_ALL_FRAMES(frp, frp->fr_child) { if (!frame_fixed_width(frp)) { return false; } } return true; } /* * Add a status line to windows at the bottom of "frp". * Note: Does not check if there is room! */ static void frame_add_statusline(frame_T *frp) { win_T *wp; if (frp->fr_layout == FR_LEAF) { wp = frp->fr_win; if (wp->w_status_height == 0) { if (wp->w_height > 0) /* don't make it negative */ --wp->w_height; wp->w_status_height = STATUS_HEIGHT; } } else if (frp->fr_layout == FR_ROW) { // Handle all the frames in the row. FOR_ALL_FRAMES(frp, frp->fr_child) { frame_add_statusline(frp); } } else { assert(frp->fr_layout == FR_COL); // Only need to handle the last frame in the column. for (frp = frp->fr_child; frp->fr_next != NULL; frp = frp->fr_next) { } frame_add_statusline(frp); } } /* * Set width of a frame. Handles recursively going through contained frames. * May remove separator line for windows at the right side (for win_close()). */ static void frame_new_width ( frame_T *topfrp, int width, int leftfirst, /* resize leftmost contained frame first */ int wfw /* obey 'winfixwidth' when there is a choice; may cause the width not to be set */ ) { frame_T *frp; int extra_cols; int w; win_T *wp; if (topfrp->fr_layout == FR_LEAF) { /* Simple case: just one window. */ wp = topfrp->fr_win; /* Find out if there are any windows right of this one. */ for (frp = topfrp; frp->fr_parent != NULL; frp = frp->fr_parent) if (frp->fr_parent->fr_layout == FR_ROW && frp->fr_next != NULL) break; if (frp->fr_parent == NULL) wp->w_vsep_width = 0; win_new_width(wp, width - wp->w_vsep_width); } else if (topfrp->fr_layout == FR_COL) { do { // All frames in this column get the same new width. FOR_ALL_FRAMES(frp, topfrp->fr_child) { frame_new_width(frp, width, leftfirst, wfw); if (frp->fr_width > width) { /* Could not fit the windows, make whole column wider. */ width = frp->fr_width; break; } } } while (frp != NULL); } else { /* fr_layout == FR_ROW */ /* Complicated case: Resize a row of frames. Resize the rightmost * frame first, frames left of it when needed. */ frp = topfrp->fr_child; if (wfw) /* Advance past frames with one window with 'wfw' set. */ while (frame_fixed_width(frp)) { frp = frp->fr_next; if (frp == NULL) return; /* no frame without 'wfw', give up */ } if (!leftfirst) { /* Find the rightmost frame of this row */ while (frp->fr_next != NULL) frp = frp->fr_next; if (wfw) /* Advance back for frames with one window with 'wfw' set. */ while (frame_fixed_width(frp)) frp = frp->fr_prev; } extra_cols = width - topfrp->fr_width; if (extra_cols < 0) { /* reduce frame width, rightmost frame first */ while (frp != NULL) { w = frame_minwidth(frp, NULL); if (frp->fr_width + extra_cols < w) { extra_cols += frp->fr_width - w; frame_new_width(frp, w, leftfirst, wfw); } else { frame_new_width(frp, frp->fr_width + extra_cols, leftfirst, wfw); break; } if (leftfirst) { do frp = frp->fr_next; while (wfw && frp != NULL && frame_fixed_width(frp)); } else { do frp = frp->fr_prev; while (wfw && frp != NULL && frame_fixed_width(frp)); } /* Increase "width" if we could not reduce enough frames. */ if (frp == NULL) width -= extra_cols; } } else if (extra_cols > 0) { /* increase width of rightmost frame */ frame_new_width(frp, frp->fr_width + extra_cols, leftfirst, wfw); } } topfrp->fr_width = width; } /* * Add the vertical separator to windows at the right side of "frp". * Note: Does not check if there is room! */ static void frame_add_vsep(const frame_T *frp) FUNC_ATTR_NONNULL_ARG(1) { win_T *wp; if (frp->fr_layout == FR_LEAF) { wp = frp->fr_win; if (wp->w_vsep_width == 0) { if (wp->w_width > 0) /* don't make it negative */ --wp->w_width; wp->w_vsep_width = 1; } } else if (frp->fr_layout == FR_COL) { // Handle all the frames in the column. FOR_ALL_FRAMES(frp, frp->fr_child) { frame_add_vsep(frp); } } else { assert(frp->fr_layout == FR_ROW); // Only need to handle the last frame in the row. frp = frp->fr_child; while (frp->fr_next != NULL) frp = frp->fr_next; frame_add_vsep(frp); } } /* * Set frame width from the window it contains. */ static void frame_fix_width(win_T *wp) { wp->w_frame->fr_width = wp->w_width + wp->w_vsep_width; } /* * Set frame height from the window it contains. */ static void frame_fix_height(win_T *wp) FUNC_ATTR_NONNULL_ALL { wp->w_frame->fr_height = wp->w_height + wp->w_status_height; } /* * Compute the minimal height for frame "topfrp". * Uses the 'winminheight' option. * When "next_curwin" isn't NULL, use p_wh for this window. * When "next_curwin" is NOWIN, don't use at least one line for the current * window. */ static int frame_minheight(frame_T *topfrp, win_T *next_curwin) { frame_T *frp; int m; int n; if (topfrp->fr_win != NULL) { if (topfrp->fr_win == next_curwin) { m = p_wh + topfrp->fr_win->w_status_height; } else { // window: minimal height of the window plus status line m = p_wmh + topfrp->fr_win->w_status_height; if (topfrp->fr_win == curwin && next_curwin == NULL) { // Current window is minimal one line high. if (p_wmh == 0) { m++; } } } } else if (topfrp->fr_layout == FR_ROW) { /* get the minimal height from each frame in this row */ m = 0; FOR_ALL_FRAMES(frp, topfrp->fr_child) { n = frame_minheight(frp, next_curwin); if (n > m) m = n; } } else { /* Add up the minimal heights for all frames in this column. */ m = 0; FOR_ALL_FRAMES(frp, topfrp->fr_child) { m += frame_minheight(frp, next_curwin); } } return m; } /* * Compute the minimal width for frame "topfrp". * When "next_curwin" isn't NULL, use p_wiw for this window. * When "next_curwin" is NOWIN, don't use at least one column for the current * window. */ static int frame_minwidth ( frame_T *topfrp, win_T *next_curwin /* use p_wh and p_wiw for next_curwin */ ) { frame_T *frp; int m, n; if (topfrp->fr_win != NULL) { if (topfrp->fr_win == next_curwin) m = p_wiw + topfrp->fr_win->w_vsep_width; else { /* window: minimal width of the window plus separator column */ m = p_wmw + topfrp->fr_win->w_vsep_width; /* Current window is minimal one column wide */ if (p_wmw == 0 && topfrp->fr_win == curwin && next_curwin == NULL) ++m; } } else if (topfrp->fr_layout == FR_COL) { /* get the minimal width from each frame in this column */ m = 0; FOR_ALL_FRAMES(frp, topfrp->fr_child) { n = frame_minwidth(frp, next_curwin); if (n > m) m = n; } } else { /* Add up the minimal widths for all frames in this row. */ m = 0; FOR_ALL_FRAMES(frp, topfrp->fr_child) { m += frame_minwidth(frp, next_curwin); } } return m; } /* * Try to close all windows except current one. * Buffers in the other windows become hidden if 'hidden' is set, or '!' is * used and the buffer was modified. * * Used by ":bdel" and ":only". */ void close_others ( int message, int forceit /* always hide all other windows */ ) { win_T *wp; win_T *nextwp; int r; if (curwin->w_floating) { if (message && !autocmd_busy) { EMSG(e_floatonly); } return; } if (one_window() && !lastwin->w_floating) { if (message && !autocmd_busy ) { MSG(_(m_onlyone)); } return; } /* Be very careful here: autocommands may change the window layout. */ for (wp = firstwin; win_valid(wp); wp = nextwp) { nextwp = wp->w_next; if (wp == curwin) { /* don't close current window */ continue; } /* Check if it's allowed to abandon this window */ r = can_abandon(wp->w_buffer, forceit); if (!win_valid(wp)) { /* autocommands messed wp up */ nextwp = firstwin; continue; } if (!r) { if (message && (p_confirm || cmdmod.confirm) && p_write) { dialog_changed(wp->w_buffer, false); if (!win_valid(wp)) { // autocommands messed wp up nextwp = firstwin; continue; } } if (bufIsChanged(wp->w_buffer)) continue; } win_close(wp, !buf_hide(wp->w_buffer) && !bufIsChanged(wp->w_buffer)); } if (message && !ONE_WINDOW) EMSG(_("E445: Other window contains changes")); } /* * Init the current window "curwin". * Called when a new file is being edited. */ void curwin_init(void) { win_init_empty(curwin); } void win_init_empty(win_T *wp) { redraw_later(wp, NOT_VALID); wp->w_lines_valid = 0; wp->w_cursor.lnum = 1; wp->w_curswant = wp->w_cursor.col = 0; wp->w_cursor.coladd = 0; wp->w_pcmark.lnum = 1; /* pcmark not cleared but set to line 1 */ wp->w_pcmark.col = 0; wp->w_prev_pcmark.lnum = 0; wp->w_prev_pcmark.col = 0; wp->w_topline = 1; wp->w_topfill = 0; wp->w_botline = 2; wp->w_s = &wp->w_buffer->b_s; } /* * Allocate the first window and put an empty buffer in it. * Called from main(). * * Return FAIL when something goes wrong. */ int win_alloc_first(void) { if (win_alloc_firstwin(NULL) == FAIL) return FAIL; first_tabpage = alloc_tabpage(); first_tabpage->tp_topframe = topframe; curtab = first_tabpage; curtab->tp_firstwin = firstwin; curtab->tp_lastwin = lastwin; curtab->tp_curwin = curwin; return OK; } // Init `aucmd_win`. This can only be done after the first window // is fully initialized, thus it can't be in win_alloc_first(). void win_alloc_aucmd_win(void) { Error err = ERROR_INIT; FloatConfig fconfig = FLOAT_CONFIG_INIT; fconfig.width = Columns; fconfig.height = 5; fconfig.focusable = false; aucmd_win = win_new_float(NULL, fconfig, &err); aucmd_win->w_buffer->b_nwindows--; RESET_BINDING(aucmd_win); } /* * Allocate the first window or the first window in a new tab page. * When "oldwin" is NULL create an empty buffer for it. * When "oldwin" is not NULL copy info from it to the new window. * Return FAIL when something goes wrong (out of memory). */ static int win_alloc_firstwin(win_T *oldwin) { curwin = win_alloc(NULL, FALSE); if (oldwin == NULL) { /* Very first window, need to create an empty buffer for it and * initialize from scratch. */ curbuf = buflist_new(NULL, NULL, 1L, BLN_LISTED); if (curbuf == NULL) { return FAIL; } curwin->w_buffer = curbuf; curwin->w_s = &(curbuf->b_s); curbuf->b_nwindows = 1; /* there is one window */ curwin->w_alist = &global_alist; curwin_init(); /* init current window */ } else { /* First window in new tab page, initialize it from "oldwin". */ win_init(curwin, oldwin, 0); /* We don't want cursor- and scroll-binding in the first window. */ RESET_BINDING(curwin); } new_frame(curwin); topframe = curwin->w_frame; topframe->fr_width = Columns; topframe->fr_height = Rows - p_ch; return OK; } /* * Create a frame for window "wp". */ static void new_frame(win_T *wp) { frame_T *frp = xcalloc(1, sizeof(frame_T)); wp->w_frame = frp; frp->fr_layout = FR_LEAF; frp->fr_win = wp; } /* * Initialize the window and frame size to the maximum. */ void win_init_size(void) { firstwin->w_height = ROWS_AVAIL; firstwin->w_height_inner = firstwin->w_height; firstwin->w_height_outer = firstwin->w_height; topframe->fr_height = ROWS_AVAIL; firstwin->w_width = Columns; firstwin->w_width_inner = firstwin->w_width; firstwin->w_width_outer = firstwin->w_width; topframe->fr_width = Columns; } /* * Allocate a new tabpage_T and init the values. */ static tabpage_T *alloc_tabpage(void) { static int last_tp_handle = 0; tabpage_T *tp = xcalloc(1, sizeof(tabpage_T)); tp->handle = ++last_tp_handle; handle_register_tabpage(tp); // Init t: variables. tp->tp_vars = tv_dict_alloc(); init_var_dict(tp->tp_vars, &tp->tp_winvar, VAR_SCOPE); tp->tp_diff_invalid = TRUE; tp->tp_ch_used = p_ch; return tp; } void free_tabpage(tabpage_T *tp) { int idx; handle_unregister_tabpage(tp); diff_clear(tp); for (idx = 0; idx < SNAP_COUNT; ++idx) clear_snapshot(tp, idx); vars_clear(&tp->tp_vars->dv_hashtab); /* free all t: variables */ hash_init(&tp->tp_vars->dv_hashtab); unref_var_dict(tp->tp_vars); if (tp == lastused_tabpage) { lastused_tabpage = NULL; } xfree(tp->tp_localdir); xfree(tp); } /// Create a new tabpage with one window. /// /// It will edit the current buffer, like after :split. /// /// @param after Put new tabpage after tabpage "after", or after the current /// tabpage in case of 0. /// @param filename Will be passed to apply_autocmds(). /// @return Was the new tabpage created successfully? FAIL or OK. int win_new_tabpage(int after, char_u *filename) { tabpage_T *old_curtab = curtab; tabpage_T *newtp; int n; newtp = alloc_tabpage(); // Remember the current windows in this Tab page. if (leave_tabpage(curbuf, true) == FAIL) { xfree(newtp); return FAIL; } newtp->tp_localdir = old_curtab->tp_localdir ? vim_strsave(old_curtab->tp_localdir) : NULL; curtab = newtp; // Create a new empty window. if (win_alloc_firstwin(old_curtab->tp_curwin) == OK) { // Make the new Tab page the new topframe. if (after == 1) { // New tab page becomes the first one. newtp->tp_next = first_tabpage; first_tabpage = newtp; } else { tabpage_T *tp = old_curtab; if (after > 0) { // Put new tab page before tab page "after". n = 2; for (tp = first_tabpage; tp->tp_next != NULL && n < after; tp = tp->tp_next) ++n; } newtp->tp_next = tp->tp_next; tp->tp_next = newtp; } newtp->tp_firstwin = newtp->tp_lastwin = newtp->tp_curwin = curwin; win_init_size(); firstwin->w_winrow = tabline_height(); win_comp_scroll(curwin); newtp->tp_topframe = topframe; last_status(false); redraw_all_later(NOT_VALID); tabpage_check_windows(old_curtab); lastused_tabpage = old_curtab; apply_autocmds(EVENT_WINNEW, NULL, NULL, false, curbuf); apply_autocmds(EVENT_WINENTER, NULL, NULL, false, curbuf); apply_autocmds(EVENT_TABNEW, filename, filename, false, curbuf); apply_autocmds(EVENT_TABENTER, NULL, NULL, false, curbuf); return OK; } // Failed, get back the previous Tab page enter_tabpage(curtab, curbuf, true, true); return FAIL; } /* * Open a new tab page if ":tab cmd" was used. It will edit the same buffer, * like with ":split". * Returns OK if a new tab page was created, FAIL otherwise. */ int may_open_tabpage(void) { int n = (cmdmod.tab == 0) ? postponed_split_tab : cmdmod.tab; if (n != 0) { cmdmod.tab = 0; /* reset it to avoid doing it twice */ postponed_split_tab = 0; return win_new_tabpage(n, NULL); } return FAIL; } /* * Create up to "maxcount" tabpages with empty windows. * Returns the number of resulting tab pages. */ int make_tabpages(int maxcount) { int count = maxcount; int todo; /* Limit to 'tabpagemax' tabs. */ if (count > p_tpm) count = p_tpm; /* * Don't execute autocommands while creating the tab pages. Must do that * when putting the buffers in the windows. */ block_autocmds(); for (todo = count - 1; todo > 0; --todo) { if (win_new_tabpage(0, NULL) == FAIL) { break; } } unblock_autocmds(); /* return actual number of tab pages */ return count - todo; } /// Check that tpc points to a valid tab page. /// /// @param[in] tpc Tabpage to check. bool valid_tabpage(tabpage_T *tpc) FUNC_ATTR_PURE FUNC_ATTR_WARN_UNUSED_RESULT { FOR_ALL_TABS(tp) { if (tp == tpc) { return true; } } return false; } /// Returns true when `tpc` is valid and at least one window is valid. int valid_tabpage_win(tabpage_T *tpc) { FOR_ALL_TABS(tp) { if (tp == tpc) { FOR_ALL_WINDOWS_IN_TAB(wp, tp) { if (win_valid_any_tab(wp)) { return true; } } return false; } } // shouldn't happen return false; } /// Close tabpage `tab`, assuming it has no windows in it. /// There must be another tabpage or this will crash. void close_tabpage(tabpage_T *tab) { tabpage_T *ptp; if (tab == first_tabpage) { first_tabpage = tab->tp_next; ptp = first_tabpage; } else { for (ptp = first_tabpage; ptp != NULL && ptp->tp_next != tab; ptp = ptp->tp_next) { // do nothing } assert(ptp != NULL); ptp->tp_next = tab->tp_next; } goto_tabpage_tp(ptp, false, false); free_tabpage(tab); } /* * Find tab page "n" (first one is 1). Returns NULL when not found. */ tabpage_T *find_tabpage(int n) { tabpage_T *tp; int i = 1; for (tp = first_tabpage; tp != NULL && i != n; tp = tp->tp_next) ++i; return tp; } /* * Get index of tab page "tp". First one has index 1. * When not found returns number of tab pages plus one. */ int tabpage_index(tabpage_T *ftp) { int i = 1; tabpage_T *tp; for (tp = first_tabpage; tp != NULL && tp != ftp; tp = tp->tp_next) ++i; return i; } /* * Prepare for leaving the current tab page. * When autocommands change "curtab" we don't leave the tab page and return * FAIL. * Careful: When OK is returned need to get a new tab page very very soon! */ static int leave_tabpage ( buf_T *new_curbuf, /* what is going to be the new curbuf, NULL if unknown */ int trigger_leave_autocmds ) { tabpage_T *tp = curtab; reset_VIsual_and_resel(); /* stop Visual mode */ if (trigger_leave_autocmds) { if (new_curbuf != curbuf) { apply_autocmds(EVENT_BUFLEAVE, NULL, NULL, FALSE, curbuf); if (curtab != tp) return FAIL; } apply_autocmds(EVENT_WINLEAVE, NULL, NULL, FALSE, curbuf); if (curtab != tp) return FAIL; apply_autocmds(EVENT_TABLEAVE, NULL, NULL, FALSE, curbuf); if (curtab != tp) return FAIL; } tp->tp_curwin = curwin; tp->tp_prevwin = prevwin; tp->tp_firstwin = firstwin; tp->tp_lastwin = lastwin; tp->tp_old_Rows = Rows; tp->tp_old_Columns = Columns; firstwin = NULL; lastwin = NULL; return OK; } /* * Start using tab page "tp". * Only to be used after leave_tabpage() or freeing the current tab page. * Only trigger *Enter autocommands when trigger_enter_autocmds is TRUE. * Only trigger *Leave autocommands when trigger_leave_autocmds is TRUE. */ static void enter_tabpage(tabpage_T *tp, buf_T *old_curbuf, int trigger_enter_autocmds, int trigger_leave_autocmds) { int old_off = tp->tp_firstwin->w_winrow; win_T *next_prevwin = tp->tp_prevwin; tabpage_T *old_curtab = curtab; curtab = tp; firstwin = tp->tp_firstwin; lastwin = tp->tp_lastwin; topframe = tp->tp_topframe; if (old_curtab != curtab) { tabpage_check_windows(old_curtab); } /* We would like doing the TabEnter event first, but we don't have a * valid current window yet, which may break some commands. * This triggers autocommands, thus may make "tp" invalid. */ win_enter_ext(tp->tp_curwin, false, true, false, trigger_enter_autocmds, trigger_leave_autocmds); prevwin = next_prevwin; last_status(false); // status line may appear or disappear const int row = win_comp_pos(); // recompute w_winrow for all windows diff_need_scrollbind = true; /* The tabpage line may have appeared or disappeared, may need to resize * the frames for that. When the Vim window was resized need to update * frame sizes too. Use the stored value of p_ch, so that it can be * different for each tab page. */ if (p_ch != curtab->tp_ch_used) { clear_cmdline = true; } p_ch = curtab->tp_ch_used; // When cmdheight is changed in a tab page with '-', cmdline_row is // changed but p_ch and tp_ch_used are not changed. Thus we also need to // check cmdline_row. if ((row < cmdline_row) && (cmdline_row <= Rows - p_ch)) { clear_cmdline = true; } if (curtab->tp_old_Rows != Rows || (old_off != firstwin->w_winrow)) { shell_new_rows(); } if (curtab->tp_old_Columns != Columns && starting == 0) { shell_new_columns(); // update window widths } lastused_tabpage = old_curtab; /* Apply autocommands after updating the display, when 'rows' and * 'columns' have been set correctly. */ if (trigger_enter_autocmds) { apply_autocmds(EVENT_TABENTER, NULL, NULL, FALSE, curbuf); if (old_curbuf != curbuf) apply_autocmds(EVENT_BUFENTER, NULL, NULL, FALSE, curbuf); } redraw_all_later(NOT_VALID); } /// tells external UI that windows and inline floats in old_curtab are invisible /// and that floats in curtab is now visible. /// /// External floats are considered independent of tabpages. This is /// implemented by always moving them to curtab. static void tabpage_check_windows(tabpage_T *old_curtab) { win_T *next_wp; for (win_T *wp = old_curtab->tp_firstwin; wp; wp = next_wp) { next_wp = wp->w_next; if (wp->w_floating) { if (wp->w_float_config.external) { win_remove(wp, old_curtab); win_append(lastwin_nofloating(), wp); } else { ui_comp_remove_grid(&wp->w_grid_alloc); } } wp->w_pos_changed = true; } for (win_T *wp = firstwin; wp; wp = wp->w_next) { if (wp->w_floating && !wp->w_float_config.external) { win_config_float(wp, wp->w_float_config); } wp->w_pos_changed = true; } } /* * Go to tab page "n". For ":tab N" and "Ngt". * When "n" is 9999 go to the last tab page. */ void goto_tabpage(int n) { tabpage_T *tp = NULL; // shut up compiler tabpage_T *ttp; int i; if (text_locked()) { // Not allowed when editing the command line. text_locked_msg(); return; } /* If there is only one it can't work. */ if (first_tabpage->tp_next == NULL) { if (n > 1) beep_flush(); return; } if (n == 0) { /* No count, go to next tab page, wrap around end. */ if (curtab->tp_next == NULL) tp = first_tabpage; else tp = curtab->tp_next; } else if (n < 0) { /* "gT": go to previous tab page, wrap around end. "N gT" repeats * this N times. */ ttp = curtab; for (i = n; i < 0; ++i) { for (tp = first_tabpage; tp->tp_next != ttp && tp->tp_next != NULL; tp = tp->tp_next) ; ttp = tp; } } else if (n == 9999) { /* Go to last tab page. */ for (tp = first_tabpage; tp->tp_next != NULL; tp = tp->tp_next) ; } else { /* Go to tab page "n". */ tp = find_tabpage(n); if (tp == NULL) { beep_flush(); return; } } goto_tabpage_tp(tp, TRUE, TRUE); } /* * Go to tabpage "tp". * Only trigger *Enter autocommands when trigger_enter_autocmds is TRUE. * Only trigger *Leave autocommands when trigger_leave_autocmds is TRUE. * Note: doesn't update the GUI tab. */ void goto_tabpage_tp(tabpage_T *tp, int trigger_enter_autocmds, int trigger_leave_autocmds) { /* Don't repeat a message in another tab page. */ set_keep_msg(NULL, 0); if (tp != curtab && leave_tabpage(tp->tp_curwin->w_buffer, trigger_leave_autocmds) == OK) { if (valid_tabpage(tp)) enter_tabpage(tp, curbuf, trigger_enter_autocmds, trigger_leave_autocmds); else enter_tabpage(curtab, curbuf, trigger_enter_autocmds, trigger_leave_autocmds); } } // Go to the last accessed tab page, if there is one. void goto_tabpage_lastused(void) { int index = tabpage_index(lastused_tabpage); if (index < tabpage_index(NULL)) { goto_tabpage(index); } } /* * Enter window "wp" in tab page "tp". * Also updates the GUI tab. */ void goto_tabpage_win(tabpage_T *tp, win_T *wp) { goto_tabpage_tp(tp, TRUE, TRUE); if (curtab == tp && win_valid(wp)) { win_enter(wp, true); } } // Move the current tab page to after tab page "nr". void tabpage_move(int nr) { int n = 1; tabpage_T *tp; tabpage_T *tp_dst; assert(curtab != NULL); if (first_tabpage->tp_next == NULL) { return; } for (tp = first_tabpage; tp->tp_next != NULL && n < nr; tp = tp->tp_next) { ++n; } if (tp == curtab || (nr > 0 && tp->tp_next != NULL && tp->tp_next == curtab)) { return; } tp_dst = tp; // Remove the current tab page from the list of tab pages. if (curtab == first_tabpage) { first_tabpage = curtab->tp_next; } else { tp = NULL; FOR_ALL_TABS(tp2) { if (tp2->tp_next == curtab) { tp = tp2; break; } } if (tp == NULL) { // "cannot happen" return; } tp->tp_next = curtab->tp_next; } // Re-insert it at the specified position. if (nr <= 0) { curtab->tp_next = first_tabpage; first_tabpage = curtab; } else { curtab->tp_next = tp_dst->tp_next; tp_dst->tp_next = curtab; } /* Need to redraw the tabline. Tab page contents doesn't change. */ redraw_tabline = TRUE; } /* * Go to another window. * When jumping to another buffer, stop Visual mode. Do this before * changing windows so we can yank the selection into the '*' register. * When jumping to another window on the same buffer, adjust its cursor * position to keep the same Visual area. */ void win_goto(win_T *wp) { win_T *owp = curwin; if (text_locked()) { beep_flush(); text_locked_msg(); return; } if (curbuf_locked()) return; if (wp->w_buffer != curbuf) reset_VIsual_and_resel(); else if (VIsual_active) wp->w_cursor = curwin->w_cursor; win_enter(wp, true); // Conceal cursor line in previous window, unconceal in current window. if (win_valid(owp) && owp->w_p_cole > 0 && !msg_scrolled) { redrawWinline(owp, owp->w_cursor.lnum); } if (curwin->w_p_cole > 0 && !msg_scrolled) { redrawWinline(curwin, curwin->w_cursor.lnum); } } /* * Find the tabpage for window "win". */ tabpage_T *win_find_tabpage(win_T *win) { FOR_ALL_TAB_WINDOWS(tp, wp) { if (wp == win) { return tp; } } return NULL; } /// Get the above or below neighbor window of the specified window. /// /// Returns the specified window if the neighbor is not found. /// Returns the previous window if the specifiecied window is a floating window. /// /// @param up true for the above neighbor /// @param count nth neighbor window /// /// @return found window win_T *win_vert_neighbor(tabpage_T *tp, win_T *wp, bool up, long count) { frame_T *fr; frame_T *nfr; frame_T *foundfr; foundfr = wp->w_frame; if (wp->w_floating) { return win_valid(prevwin) && !prevwin->w_floating ? prevwin : firstwin; } while (count--) { /* * First go upwards in the tree of frames until we find an upwards or * downwards neighbor. */ fr = foundfr; for (;; ) { if (fr == tp->tp_topframe) { goto end; } if (up) { nfr = fr->fr_prev; } else { nfr = fr->fr_next; } if (fr->fr_parent->fr_layout == FR_COL && nfr != NULL) { break; } fr = fr->fr_parent; } /* * Now go downwards to find the bottom or top frame in it. */ for (;; ) { if (nfr->fr_layout == FR_LEAF) { foundfr = nfr; break; } fr = nfr->fr_child; if (nfr->fr_layout == FR_ROW) { // Find the frame at the cursor row. while (fr->fr_next != NULL && frame2win(fr)->w_wincol + fr->fr_width <= wp->w_wincol + wp->w_wcol) { fr = fr->fr_next; } } if (nfr->fr_layout == FR_COL && up) while (fr->fr_next != NULL) fr = fr->fr_next; nfr = fr; } } end: return foundfr != NULL ? foundfr->fr_win : NULL; } /// Move to window above or below "count" times. /// /// @param up true to go to win above /// @param count go count times into direction static void win_goto_ver(bool up, long count) { win_T *win = win_vert_neighbor(curtab, curwin, up, count); if (win != NULL) { win_goto(win); } } /// Get the left or right neighbor window of the specified window. /// /// Returns the specified window if the neighbor is not found. /// Returns the previous window if the specifiecied window is a floating window. /// /// @param left true for the left neighbor /// @param count nth neighbor window /// /// @return found window win_T *win_horz_neighbor(tabpage_T *tp, win_T *wp, bool left, long count) { frame_T *fr; frame_T *nfr; frame_T *foundfr; foundfr = wp->w_frame; if (wp->w_floating) { return win_valid(prevwin) && !prevwin->w_floating ? prevwin : firstwin; } while (count--) { /* * First go upwards in the tree of frames until we find a left or * right neighbor. */ fr = foundfr; for (;; ) { if (fr == tp->tp_topframe) { goto end; } if (left) { nfr = fr->fr_prev; } else { nfr = fr->fr_next; } if (fr->fr_parent->fr_layout == FR_ROW && nfr != NULL) { break; } fr = fr->fr_parent; } /* * Now go downwards to find the leftmost or rightmost frame in it. */ for (;; ) { if (nfr->fr_layout == FR_LEAF) { foundfr = nfr; break; } fr = nfr->fr_child; if (nfr->fr_layout == FR_COL) { /* Find the frame at the cursor row. */ while (fr->fr_next != NULL && frame2win(fr)->w_winrow + fr->fr_height <= wp->w_winrow + wp->w_wrow) fr = fr->fr_next; } if (nfr->fr_layout == FR_ROW && left) while (fr->fr_next != NULL) fr = fr->fr_next; nfr = fr; } } end: return foundfr != NULL ? foundfr->fr_win : NULL; } /// Move to left or right window. /// /// @param left true to go to left window /// @param count go count times into direction static void win_goto_hor(bool left, long count) { win_T *win = win_horz_neighbor(curtab, curwin, left, count); if (win != NULL) { win_goto(win); } } /// Make window `wp` the current window. /// /// @warning Autocmds may close the window immediately, so caller must check /// win_valid(wp). void win_enter(win_T *wp, bool undo_sync) { win_enter_ext(wp, undo_sync, false, false, true, true); } /* * Make window wp the current window. * Can be called with "curwin_invalid" TRUE, which means that curwin has just * been closed and isn't valid. */ static void win_enter_ext(win_T *wp, bool undo_sync, int curwin_invalid, int trigger_new_autocmds, int trigger_enter_autocmds, int trigger_leave_autocmds) { int other_buffer = FALSE; if (wp == curwin && !curwin_invalid) /* nothing to do */ return; if (!curwin_invalid && trigger_leave_autocmds) { /* * Be careful: If autocommands delete the window, return now. */ if (wp->w_buffer != curbuf) { apply_autocmds(EVENT_BUFLEAVE, NULL, NULL, FALSE, curbuf); other_buffer = TRUE; if (!win_valid(wp)) return; } apply_autocmds(EVENT_WINLEAVE, NULL, NULL, FALSE, curbuf); if (!win_valid(wp)) return; /* autocmds may abort script processing */ if (aborting()) return; } // sync undo before leaving the current buffer if (undo_sync && curbuf != wp->w_buffer) { u_sync(FALSE); } // Might need to scroll the old window before switching, e.g., when the // cursor was moved. update_topline(curwin); // may have to copy the buffer options when 'cpo' contains 'S' if (wp->w_buffer != curbuf) { buf_copy_options(wp->w_buffer, BCO_ENTER | BCO_NOHELP); } if (!curwin_invalid) { prevwin = curwin; /* remember for CTRL-W p */ curwin->w_redr_status = TRUE; } curwin = wp; curbuf = wp->w_buffer; check_cursor(); if (!virtual_active()) curwin->w_cursor.coladd = 0; changed_line_abv_curs(); /* assume cursor position needs updating */ // New directory is either the local directory of the window, tab or NULL. char *new_dir = (char *)(curwin->w_localdir ? curwin->w_localdir : curtab->tp_localdir); char cwd[MAXPATHL]; if (os_dirname((char_u *)cwd, MAXPATHL) != OK) { cwd[0] = NUL; } if (new_dir) { // Window/tab has a local directory: Save current directory as global // (unless that was done already) and change to the local directory. if (globaldir == NULL) { if (cwd[0] != NUL) { globaldir = (char_u *)xstrdup(cwd); } } if (os_chdir(new_dir) == 0) { if (!p_acd && !strequal(new_dir, cwd)) { do_autocmd_dirchanged(new_dir, curwin->w_localdir ? kCdScopeWindow : kCdScopeTab, true); } shorten_fnames(true); } } else if (globaldir != NULL) { // Window doesn't have a local directory and we are not in the global // directory: Change to the global directory. if (os_chdir((char *)globaldir) == 0) { if (!p_acd && !strequal((char *)globaldir, cwd)) { do_autocmd_dirchanged((char *)globaldir, kCdScopeGlobal, true); } } XFREE_CLEAR(globaldir); shorten_fnames(true); } if (trigger_new_autocmds) { apply_autocmds(EVENT_WINNEW, NULL, NULL, false, curbuf); } if (trigger_enter_autocmds) { apply_autocmds(EVENT_WINENTER, NULL, NULL, false, curbuf); if (other_buffer) { apply_autocmds(EVENT_BUFENTER, NULL, NULL, false, curbuf); } apply_autocmds(EVENT_CURSORMOVED, NULL, NULL, false, curbuf); curwin->w_last_cursormoved = curwin->w_cursor; } maketitle(); curwin->w_redr_status = true; redraw_tabline = true; if (restart_edit) { redraw_later(curwin, VALID); // causes status line redraw } if (HL_ATTR(HLF_INACTIVE) || (prevwin && prevwin->w_hl_ids[HLF_INACTIVE]) || curwin->w_hl_ids[HLF_INACTIVE]) { redraw_all_later(NOT_VALID); } // set window height to desired minimal value if (curwin->w_height < p_wh && !curwin->w_p_wfh && !curwin->w_floating) { win_setheight((int)p_wh); } else if (curwin->w_height == 0) { win_setheight(1); } // set window width to desired minimal value if (curwin->w_width < p_wiw && !curwin->w_p_wfw && !wp->w_floating) { win_setwidth((int)p_wiw); } setmouse(); /* in case jumped to/from help buffer */ /* Change directories when the 'acd' option is set. */ do_autochdir(); } /// Jump to the first open window that contains buffer "buf", if one exists. /// Returns a pointer to the window found, otherwise NULL. win_T *buf_jump_open_win(buf_T *buf) { if (curwin->w_buffer == buf) { win_enter(curwin, false); return curwin; } else { FOR_ALL_WINDOWS_IN_TAB(wp, curtab) { if (wp->w_buffer == buf) { win_enter(wp, false); return wp; } } } return NULL; } /// Jump to the first open window in any tab page that contains buffer "buf", /// if one exists. /// @return the found window, or NULL. win_T *buf_jump_open_tab(buf_T *buf) { // First try the current tab page. { win_T *wp = buf_jump_open_win(buf); if (wp != NULL) return wp; } FOR_ALL_TABS(tp) { // Skip the current tab since we already checked it. if (tp == curtab) { continue; } FOR_ALL_WINDOWS_IN_TAB(wp, tp) { if (wp->w_buffer == buf) { goto_tabpage_win(tp, wp); // If we the current window didn't switch, // something went wrong. if (curwin != wp) { wp = NULL; } // Return the window we switched to. return wp; } } } // If we made it this far, we didn't find the buffer. return NULL; } /* * Allocate a window structure and link it in the window list when "hidden" is * FALSE. */ static win_T *win_alloc(win_T *after, int hidden) { static int last_win_id = LOWEST_WIN_ID - 1; // allocate window structure and linesizes arrays win_T *new_wp = xcalloc(1, sizeof(win_T)); new_wp->handle = ++last_win_id; handle_register_window(new_wp); grid_assign_handle(&new_wp->w_grid_alloc); // Init w: variables. new_wp->w_vars = tv_dict_alloc(); init_var_dict(new_wp->w_vars, &new_wp->w_winvar, VAR_SCOPE); /* Don't execute autocommands while the window is not properly * initialized yet. gui_create_scrollbar() may trigger a FocusGained * event. */ block_autocmds(); /* * link the window in the window list */ if (!hidden) win_append(after, new_wp); new_wp->w_wincol = 0; new_wp->w_width = Columns; /* position the display and the cursor at the top of the file. */ new_wp->w_topline = 1; new_wp->w_topfill = 0; new_wp->w_botline = 2; new_wp->w_cursor.lnum = 1; new_wp->w_scbind_pos = 1; new_wp->w_floating = 0; new_wp->w_float_config = FLOAT_CONFIG_INIT; new_wp->w_viewport_invalid = true; // use global option for global-local options new_wp->w_p_so = -1; new_wp->w_p_siso = -1; /* We won't calculate w_fraction until resizing the window */ new_wp->w_fraction = 0; new_wp->w_prev_fraction_row = -1; foldInitWin(new_wp); unblock_autocmds(); new_wp->w_match_head = NULL; new_wp->w_next_match_id = 4; return new_wp; } // Free one wininfo_T. void free_wininfo(wininfo_T *wip, buf_T *bp) { if (wip->wi_optset) { clear_winopt(&wip->wi_opt); deleteFoldRecurse(bp, &wip->wi_folds); } xfree(wip); } /* * Remove window 'wp' from the window list and free the structure. */ static void win_free ( win_T *wp, tabpage_T *tp /* tab page "win" is in, NULL for current */ ) { int i; wininfo_T *wip; handle_unregister_window(wp); clearFolding(wp); /* reduce the reference count to the argument list. */ alist_unlink(wp->w_alist); /* Don't execute autocommands while the window is halfway being deleted. * gui_mch_destroy_scrollbar() may trigger a FocusGained event. */ block_autocmds(); clear_winopt(&wp->w_onebuf_opt); clear_winopt(&wp->w_allbuf_opt); vars_clear(&wp->w_vars->dv_hashtab); /* free all w: variables */ hash_init(&wp->w_vars->dv_hashtab); unref_var_dict(wp->w_vars); if (prevwin == wp) { prevwin = NULL; } FOR_ALL_TABS(ttp) { if (ttp->tp_prevwin == wp) { ttp->tp_prevwin = NULL; } } xfree(wp->w_lines); for (i = 0; i < wp->w_tagstacklen; i++) { xfree(wp->w_tagstack[i].tagname); xfree(wp->w_tagstack[i].user_data); } xfree(wp->w_localdir); /* Remove the window from the b_wininfo lists, it may happen that the * freed memory is re-used for another window. */ FOR_ALL_BUFFERS(buf) { for (wip = buf->b_wininfo; wip != NULL; wip = wip->wi_next) { if (wip->wi_win == wp) { wininfo_T *wip2; // If there already is an entry with "wi_win" set to NULL it // must be removed, it would never be used. for (wip2 = buf->b_wininfo; wip2 != NULL; wip2 = wip2->wi_next) { if (wip2->wi_win == NULL) { if (wip2->wi_next != NULL) { wip2->wi_next->wi_prev = wip2->wi_prev; } if (wip2->wi_prev == NULL) { buf->b_wininfo = wip2->wi_next; } else { wip2->wi_prev->wi_next = wip2->wi_next; } free_wininfo(wip2, buf); break; } } wip->wi_win = NULL; } } } clear_matches(wp); free_jumplist(wp); qf_free_all(wp); xfree(wp->w_p_cc_cols); win_free_grid(wp, false); if (wp != aucmd_win) win_remove(wp, tp); if (autocmd_busy) { wp->w_next = au_pending_free_win; au_pending_free_win = wp; } else { xfree(wp); } unblock_autocmds(); } void win_free_grid(win_T *wp, bool reinit) { if (wp->w_grid_alloc.handle != 0 && ui_has(kUIMultigrid)) { ui_call_grid_destroy(wp->w_grid_alloc.handle); } grid_free(&wp->w_grid_alloc); if (reinit) { // if a float is turned into a split and back into a float, the grid // data structure will be reused memset(&wp->w_grid_alloc, 0, sizeof(wp->w_grid_alloc)); } } /* * Append window "wp" in the window list after window "after". */ void win_append(win_T *after, win_T *wp) { win_T *before; if (after == NULL) /* after NULL is in front of the first */ before = firstwin; else before = after->w_next; wp->w_next = before; wp->w_prev = after; if (after == NULL) firstwin = wp; else after->w_next = wp; if (before == NULL) lastwin = wp; else before->w_prev = wp; } /* * Remove a window from the window list. */ void win_remove ( win_T *wp, tabpage_T *tp /* tab page "win" is in, NULL for current */ ) { if (wp->w_prev != NULL) { wp->w_prev->w_next = wp->w_next; } else if (tp == NULL) { firstwin = curtab->tp_firstwin = wp->w_next; } else { tp->tp_firstwin = wp->w_next; } if (wp->w_next != NULL) { wp->w_next->w_prev = wp->w_prev; } else if (tp == NULL) { lastwin = curtab->tp_lastwin = wp->w_prev; } else { tp->tp_lastwin = wp->w_prev; } } /* * Append frame "frp" in a frame list after frame "after". */ static void frame_append(frame_T *after, frame_T *frp) { frp->fr_next = after->fr_next; after->fr_next = frp; if (frp->fr_next != NULL) frp->fr_next->fr_prev = frp; frp->fr_prev = after; } /* * Insert frame "frp" in a frame list before frame "before". */ static void frame_insert(frame_T *before, frame_T *frp) { frp->fr_next = before; frp->fr_prev = before->fr_prev; before->fr_prev = frp; if (frp->fr_prev != NULL) frp->fr_prev->fr_next = frp; else frp->fr_parent->fr_child = frp; } /* * Remove a frame from a frame list. */ static void frame_remove(frame_T *frp) { if (frp->fr_prev != NULL) { frp->fr_prev->fr_next = frp->fr_next; } else { frp->fr_parent->fr_child = frp->fr_next; // special case: topframe->fr_child == frp if (topframe->fr_child == frp) { topframe->fr_child = frp->fr_next; } } if (frp->fr_next != NULL) { frp->fr_next->fr_prev = frp->fr_prev; } } /* * Called from win_new_shellsize() after Rows changed. * This only does the current tab page, others must be done when made active. */ void shell_new_rows(void) { int h = (int)ROWS_AVAIL; if (firstwin == NULL) /* not initialized yet */ return; if (h < frame_minheight(topframe, NULL)) h = frame_minheight(topframe, NULL); /* First try setting the heights of windows with 'winfixheight'. If * that doesn't result in the right height, forget about that option. */ frame_new_height(topframe, h, FALSE, TRUE); if (!frame_check_height(topframe, h)) frame_new_height(topframe, h, FALSE, FALSE); (void)win_comp_pos(); // recompute w_winrow and w_wincol win_reconfig_floats(); // The size of floats might change compute_cmdrow(); curtab->tp_ch_used = p_ch; } /* * Called from win_new_shellsize() after Columns changed. */ void shell_new_columns(void) { if (firstwin == NULL) /* not initialized yet */ return; /* First try setting the widths of windows with 'winfixwidth'. If that * doesn't result in the right width, forget about that option. */ frame_new_width(topframe, Columns, false, true); if (!frame_check_width(topframe, Columns)) { frame_new_width(topframe, Columns, false, false); } (void)win_comp_pos(); // recompute w_winrow and w_wincol win_reconfig_floats(); // The size of floats might change } /// Check if "wp" has scrolled since last time it was checked /// @param wp the window to check bool win_did_scroll(win_T *wp) { return (curwin->w_last_topline != curwin->w_topline || curwin->w_last_leftcol != curwin->w_leftcol || curwin->w_last_width != curwin->w_width || curwin->w_last_height != curwin->w_height); } /// Trigger WinScrolled autocmd void do_autocmd_winscrolled(win_T *wp) { apply_autocmds(EVENT_WINSCROLLED, NULL, NULL, false, curbuf); wp->w_last_topline = wp->w_topline; wp->w_last_leftcol = wp->w_leftcol; wp->w_last_width = wp->w_width; wp->w_last_height = wp->w_height; } /* * Save the size of all windows in "gap". */ void win_size_save(garray_T *gap) { ga_init(gap, (int)sizeof(int), 1); ga_grow(gap, win_count() * 2 + 1); // first entry is value of 'lines' ((int *)gap->ga_data)[gap->ga_len++] = Rows; FOR_ALL_WINDOWS_IN_TAB(wp, curtab) { ((int *)gap->ga_data)[gap->ga_len++] = wp->w_width + wp->w_vsep_width; ((int *)gap->ga_data)[gap->ga_len++] = wp->w_height; } } // Restore window sizes, but only if the number of windows is still the same // and 'lines' didn't change. // Does not free the growarray. void win_size_restore(garray_T *gap) FUNC_ATTR_NONNULL_ALL { if (win_count() * 2 + 1 == gap->ga_len && ((int *)gap->ga_data)[0] == Rows) { // The order matters, because frames contain other frames, but it's // difficult to get right. The easy way out is to do it twice. for (int j = 0; j < 2; j++) { int i = 1; FOR_ALL_WINDOWS_IN_TAB(wp, curtab) { int width = ((int *)gap->ga_data)[i++]; int height = ((int *)gap->ga_data)[i++]; if (!wp->w_floating) { frame_setwidth(wp->w_frame, width); win_setheight_win(height, wp); } } } /* recompute the window positions */ (void)win_comp_pos(); } } /* * Update the position for all windows, using the width and height of the * frames. * Returns the row just after the last window. */ int win_comp_pos(void) { int row = tabline_height(); int col = 0; frame_comp_pos(topframe, &row, &col); for (win_T *wp = lastwin; wp && wp->w_floating; wp = wp->w_prev) { // float might be anchored to moved window if (wp->w_float_config.relative == kFloatRelativeWindow) { wp->w_pos_changed = true; } } return row; } void win_reconfig_floats(void) { for (win_T *wp = lastwin; wp && wp->w_floating; wp = wp->w_prev) { win_config_float(wp, wp->w_float_config); } } /* * Update the position of the windows in frame "topfrp", using the width and * height of the frames. * "*row" and "*col" are the top-left position of the frame. They are updated * to the bottom-right position plus one. */ static void frame_comp_pos(frame_T *topfrp, int *row, int *col) { win_T *wp; frame_T *frp; int startcol; int startrow; wp = topfrp->fr_win; if (wp != NULL) { if (wp->w_winrow != *row || wp->w_wincol != *col ) { /* position changed, redraw */ wp->w_winrow = *row; wp->w_wincol = *col; redraw_later(wp, NOT_VALID); wp->w_redr_status = true; wp->w_pos_changed = true; } const int h = wp->w_height + wp->w_status_height; *row += h > topfrp->fr_height ? topfrp->fr_height : h; *col += wp->w_width + wp->w_vsep_width; } else { startrow = *row; startcol = *col; FOR_ALL_FRAMES(frp, topfrp->fr_child) { if (topfrp->fr_layout == FR_ROW) { *row = startrow; // all frames are at the same row } else { *col = startcol; // all frames are at the same col } frame_comp_pos(frp, row, col); } } } /* * Set current window height and take care of repositioning other windows to * fit around it. */ void win_setheight(int height) { win_setheight_win(height, curwin); } /* * Set the window height of window "win" and take care of repositioning other * windows to fit around it. */ void win_setheight_win(int height, win_T *win) { if (win == curwin) { // Always keep current window at least one line high, even when // 'winminheight' is zero. if (height < p_wmh) { height = p_wmh; } if (height == 0) { height = 1; } } if (win->w_floating) { win->w_float_config.height = height; win_config_float(win, win->w_float_config); redraw_later(win, NOT_VALID); } else { frame_setheight(win->w_frame, height + win->w_status_height); // recompute the window positions int row = win_comp_pos(); // If there is extra space created between the last window and the command // line, clear it. if (full_screen && msg_scrolled == 0 && row < cmdline_row) { grid_fill(&default_grid, row, cmdline_row, 0, Columns, ' ', ' ', 0); } cmdline_row = row; msg_row = row; msg_col = 0; redraw_all_later(NOT_VALID); } } /* * Set the height of a frame to "height" and take care that all frames and * windows inside it are resized. Also resize frames on the left and right if * the are in the same FR_ROW frame. * * Strategy: * If the frame is part of a FR_COL frame, try fitting the frame in that * frame. If that doesn't work (the FR_COL frame is too small), recursively * go to containing frames to resize them and make room. * If the frame is part of a FR_ROW frame, all frames must be resized as well. * Check for the minimal height of the FR_ROW frame. * At the top level we can also use change the command line height. */ static void frame_setheight(frame_T *curfrp, int height) { int room; /* total number of lines available */ int take; /* number of lines taken from other windows */ int room_cmdline; /* lines available from cmdline */ int run; frame_T *frp; int h; int room_reserved; /* If the height already is the desired value, nothing to do. */ if (curfrp->fr_height == height) return; if (curfrp->fr_parent == NULL) { /* topframe: can only change the command line */ if (height > ROWS_AVAIL) height = ROWS_AVAIL; if (height > 0) frame_new_height(curfrp, height, FALSE, FALSE); } else if (curfrp->fr_parent->fr_layout == FR_ROW) { /* Row of frames: Also need to resize frames left and right of this * one. First check for the minimal height of these. */ h = frame_minheight(curfrp->fr_parent, NULL); if (height < h) height = h; frame_setheight(curfrp->fr_parent, height); } else { /* * Column of frames: try to change only frames in this column. */ /* * Do this twice: * 1: compute room available, if it's not enough try resizing the * containing frame. * 2: compute the room available and adjust the height to it. * Try not to reduce the height of a window with 'winfixheight' set. */ for (run = 1; run <= 2; ++run) { room = 0; room_reserved = 0; FOR_ALL_FRAMES(frp, curfrp->fr_parent->fr_child) { if (frp != curfrp && frp->fr_win != NULL && frp->fr_win->w_p_wfh) { room_reserved += frp->fr_height; } room += frp->fr_height; if (frp != curfrp) { room -= frame_minheight(frp, NULL); } } if (curfrp->fr_width != Columns) { room_cmdline = 0; } else { win_T *wp = lastwin_nofloating(); room_cmdline = Rows - p_ch - (wp->w_winrow + wp->w_height + wp->w_status_height); if (room_cmdline < 0) { room_cmdline = 0; } } if (height <= room + room_cmdline) { break; } if (run == 2 || curfrp->fr_width == Columns) { height = room + room_cmdline; break; } frame_setheight(curfrp->fr_parent, height + frame_minheight(curfrp->fr_parent, NOWIN) - (int)p_wmh - 1); /*NOTREACHED*/ } /* * Compute the number of lines we will take from others frames (can be * negative!). */ take = height - curfrp->fr_height; /* If there is not enough room, also reduce the height of a window * with 'winfixheight' set. */ if (height > room + room_cmdline - room_reserved) room_reserved = room + room_cmdline - height; /* If there is only a 'winfixheight' window and making the * window smaller, need to make the other window taller. */ if (take < 0 && room - curfrp->fr_height < room_reserved) room_reserved = 0; if (take > 0 && room_cmdline > 0) { /* use lines from cmdline first */ if (take < room_cmdline) room_cmdline = take; take -= room_cmdline; topframe->fr_height += room_cmdline; } /* * set the current frame to the new height */ frame_new_height(curfrp, height, FALSE, FALSE); /* * First take lines from the frames after the current frame. If * that is not enough, takes lines from frames above the current * frame. */ for (run = 0; run < 2; ++run) { if (run == 0) frp = curfrp->fr_next; /* 1st run: start with next window */ else frp = curfrp->fr_prev; /* 2nd run: start with prev window */ while (frp != NULL && take != 0) { h = frame_minheight(frp, NULL); if (room_reserved > 0 && frp->fr_win != NULL && frp->fr_win->w_p_wfh) { if (room_reserved >= frp->fr_height) room_reserved -= frp->fr_height; else { if (frp->fr_height - room_reserved > take) room_reserved = frp->fr_height - take; take -= frp->fr_height - room_reserved; frame_new_height(frp, room_reserved, FALSE, FALSE); room_reserved = 0; } } else { if (frp->fr_height - take < h) { take -= frp->fr_height - h; frame_new_height(frp, h, FALSE, FALSE); } else { frame_new_height(frp, frp->fr_height - take, FALSE, FALSE); take = 0; } } if (run == 0) frp = frp->fr_next; else frp = frp->fr_prev; } } } } /* * Set current window width and take care of repositioning other windows to * fit around it. */ void win_setwidth(int width) { win_setwidth_win(width, curwin); } void win_setwidth_win(int width, win_T *wp) { /* Always keep current window at least one column wide, even when * 'winminwidth' is zero. */ if (wp == curwin) { if (width < p_wmw) width = p_wmw; if (width == 0) width = 1; } else if (width < 0) { width = 0; } if (wp->w_floating) { wp->w_float_config.width = width; win_config_float(wp, wp->w_float_config); redraw_later(wp, NOT_VALID); } else { frame_setwidth(wp->w_frame, width + wp->w_vsep_width); // recompute the window positions (void)win_comp_pos(); redraw_all_later(NOT_VALID); } } /* * Set the width of a frame to "width" and take care that all frames and * windows inside it are resized. Also resize frames above and below if the * are in the same FR_ROW frame. * * Strategy is similar to frame_setheight(). */ static void frame_setwidth(frame_T *curfrp, int width) { int room; /* total number of lines available */ int take; /* number of lines taken from other windows */ int run; frame_T *frp; int w; int room_reserved; /* If the width already is the desired value, nothing to do. */ if (curfrp->fr_width == width) return; if (curfrp->fr_parent == NULL) /* topframe: can't change width */ return; if (curfrp->fr_parent->fr_layout == FR_COL) { /* Column of frames: Also need to resize frames above and below of * this one. First check for the minimal width of these. */ w = frame_minwidth(curfrp->fr_parent, NULL); if (width < w) width = w; frame_setwidth(curfrp->fr_parent, width); } else { /* * Row of frames: try to change only frames in this row. * * Do this twice: * 1: compute room available, if it's not enough try resizing the * containing frame. * 2: compute the room available and adjust the width to it. */ for (run = 1; run <= 2; ++run) { room = 0; room_reserved = 0; FOR_ALL_FRAMES(frp, curfrp->fr_parent->fr_child) { if (frp != curfrp && frp->fr_win != NULL && frp->fr_win->w_p_wfw) { room_reserved += frp->fr_width; } room += frp->fr_width; if (frp != curfrp) { room -= frame_minwidth(frp, NULL); } } if (width <= room) break; if (run == 2 || curfrp->fr_height >= ROWS_AVAIL) { width = room; break; } frame_setwidth(curfrp->fr_parent, width + frame_minwidth(curfrp->fr_parent, NOWIN) - (int)p_wmw - 1); } /* * Compute the number of lines we will take from others frames (can be * negative!). */ take = width - curfrp->fr_width; /* If there is not enough room, also reduce the width of a window * with 'winfixwidth' set. */ if (width > room - room_reserved) room_reserved = room - width; /* If there is only a 'winfixwidth' window and making the * window smaller, need to make the other window narrower. */ if (take < 0 && room - curfrp->fr_width < room_reserved) room_reserved = 0; /* * set the current frame to the new width */ frame_new_width(curfrp, width, FALSE, FALSE); /* * First take lines from the frames right of the current frame. If * that is not enough, takes lines from frames left of the current * frame. */ for (run = 0; run < 2; ++run) { if (run == 0) frp = curfrp->fr_next; /* 1st run: start with next window */ else frp = curfrp->fr_prev; /* 2nd run: start with prev window */ while (frp != NULL && take != 0) { w = frame_minwidth(frp, NULL); if (room_reserved > 0 && frp->fr_win != NULL && frp->fr_win->w_p_wfw) { if (room_reserved >= frp->fr_width) room_reserved -= frp->fr_width; else { if (frp->fr_width - room_reserved > take) room_reserved = frp->fr_width - take; take -= frp->fr_width - room_reserved; frame_new_width(frp, room_reserved, FALSE, FALSE); room_reserved = 0; } } else { if (frp->fr_width - take < w) { take -= frp->fr_width - w; frame_new_width(frp, w, FALSE, FALSE); } else { frame_new_width(frp, frp->fr_width - take, FALSE, FALSE); take = 0; } } if (run == 0) frp = frp->fr_next; else frp = frp->fr_prev; } } } } // Check 'winminheight' for a valid value and reduce it if needed. void win_setminheight(void) { bool first = true; // loop until there is a 'winminheight' that is possible while (p_wmh > 0) { const int room = Rows - p_ch; const int needed = min_rows() - 1; // 1 was added for the cmdline if (room >= needed) { break; } p_wmh--; if (first) { EMSG(_(e_noroom)); first = false; } } } // Check 'winminwidth' for a valid value and reduce it if needed. void win_setminwidth(void) { bool first = true; // loop until there is a 'winminheight' that is possible while (p_wmw > 0) { const int room = Columns; const int needed = frame_minwidth(topframe, NULL); if (room >= needed) { break; } p_wmw--; if (first) { EMSG(_(e_noroom)); first = false; } } } /* * Status line of dragwin is dragged "offset" lines down (negative is up). */ void win_drag_status_line(win_T *dragwin, int offset) { frame_T *curfr; frame_T *fr; int room; int row; int up; /* if TRUE, drag status line up, otherwise down */ int n; fr = dragwin->w_frame; curfr = fr; if (fr != topframe) { /* more than one window */ fr = fr->fr_parent; /* When the parent frame is not a column of frames, its parent should * be. */ if (fr->fr_layout != FR_COL) { curfr = fr; if (fr != topframe) /* only a row of windows, may drag statusline */ fr = fr->fr_parent; } } /* If this is the last frame in a column, may want to resize the parent * frame instead (go two up to skip a row of frames). */ while (curfr != topframe && curfr->fr_next == NULL) { if (fr != topframe) fr = fr->fr_parent; curfr = fr; if (fr != topframe) fr = fr->fr_parent; } if (offset < 0) { /* drag up */ up = TRUE; offset = -offset; /* sum up the room of the current frame and above it */ if (fr == curfr) { /* only one window */ room = fr->fr_height - frame_minheight(fr, NULL); } else { room = 0; for (fr = fr->fr_child;; fr = fr->fr_next) { room += fr->fr_height - frame_minheight(fr, NULL); if (fr == curfr) break; } } fr = curfr->fr_next; /* put fr at frame that grows */ } else { /* drag down */ up = FALSE; /* * Only dragging the last status line can reduce p_ch. */ room = Rows - cmdline_row; if (curfr->fr_next == NULL) room -= 1; else room -= p_ch; if (room < 0) room = 0; // sum up the room of frames below of the current one FOR_ALL_FRAMES(fr, curfr->fr_next) { room += fr->fr_height - frame_minheight(fr, NULL); } fr = curfr; // put fr at window that grows } if (room < offset) /* Not enough room */ offset = room; /* Move as far as we can */ if (offset <= 0) return; /* * Grow frame fr by "offset" lines. * Doesn't happen when dragging the last status line up. */ if (fr != NULL) frame_new_height(fr, fr->fr_height + offset, up, FALSE); if (up) fr = curfr; /* current frame gets smaller */ else fr = curfr->fr_next; /* next frame gets smaller */ /* * Now make the other frames smaller. */ while (fr != NULL && offset > 0) { n = frame_minheight(fr, NULL); if (fr->fr_height - offset <= n) { offset -= fr->fr_height - n; frame_new_height(fr, n, !up, FALSE); } else { frame_new_height(fr, fr->fr_height - offset, !up, FALSE); break; } if (up) fr = fr->fr_prev; else fr = fr->fr_next; } row = win_comp_pos(); grid_fill(&default_grid, row, cmdline_row, 0, Columns, ' ', ' ', 0); if (msg_grid.chars) { clear_cmdline = true; } cmdline_row = row; p_ch = Rows - cmdline_row; if (p_ch < 1) p_ch = 1; curtab->tp_ch_used = p_ch; redraw_all_later(SOME_VALID); showmode(); } /* * Separator line of dragwin is dragged "offset" lines right (negative is left). */ void win_drag_vsep_line(win_T *dragwin, int offset) { frame_T *curfr; frame_T *fr; int room; int left; /* if TRUE, drag separator line left, otherwise right */ int n; fr = dragwin->w_frame; if (fr == topframe) /* only one window (cannot happen?) */ return; curfr = fr; fr = fr->fr_parent; /* When the parent frame is not a row of frames, its parent should be. */ if (fr->fr_layout != FR_ROW) { if (fr == topframe) /* only a column of windows (cannot happen?) */ return; curfr = fr; fr = fr->fr_parent; } /* If this is the last frame in a row, may want to resize a parent * frame instead. */ while (curfr->fr_next == NULL) { if (fr == topframe) break; curfr = fr; fr = fr->fr_parent; if (fr != topframe) { curfr = fr; fr = fr->fr_parent; } } if (offset < 0) { /* drag left */ left = TRUE; offset = -offset; /* sum up the room of the current frame and left of it */ room = 0; for (fr = fr->fr_child;; fr = fr->fr_next) { room += fr->fr_width - frame_minwidth(fr, NULL); if (fr == curfr) break; } fr = curfr->fr_next; /* put fr at frame that grows */ } else { /* drag right */ left = FALSE; /* sum up the room of frames right of the current one */ room = 0; FOR_ALL_FRAMES(fr, curfr->fr_next) { room += fr->fr_width - frame_minwidth(fr, NULL); } fr = curfr; // put fr at window that grows } assert(fr); // Not enough room if (room < offset) { offset = room; // Move as far as we can } // No room at all, quit. if (offset <= 0) { return; } if (fr == NULL) { return; // Safety check, should not happen. } /* grow frame fr by offset lines */ frame_new_width(fr, fr->fr_width + offset, left, FALSE); /* shrink other frames: current and at the left or at the right */ if (left) fr = curfr; /* current frame gets smaller */ else fr = curfr->fr_next; /* next frame gets smaller */ while (fr != NULL && offset > 0) { n = frame_minwidth(fr, NULL); if (fr->fr_width - offset <= n) { offset -= fr->fr_width - n; frame_new_width(fr, n, !left, FALSE); } else { frame_new_width(fr, fr->fr_width - offset, !left, FALSE); break; } if (left) fr = fr->fr_prev; else fr = fr->fr_next; } (void)win_comp_pos(); redraw_all_later(NOT_VALID); } #define FRACTION_MULT 16384L // Set wp->w_fraction for the current w_wrow and w_height. // Has no effect when the window is less than two lines. void set_fraction(win_T *wp) { if (wp->w_height_inner > 1) { // When cursor is in the first line the percentage is computed as if // it's halfway that line. Thus with two lines it is 25%, with three // lines 17%, etc. Similarly for the last line: 75%, 83%, etc. wp->w_fraction = ((long)wp->w_wrow * FRACTION_MULT + FRACTION_MULT / 2) / (long)wp->w_height_inner; } } // Set the height of a window. // "height" excludes any window toolbar. // This takes care of the things inside the window, not what happens to the // window position, the frame or to other windows. void win_new_height(win_T *wp, int height) { // Don't want a negative height. Happens when splitting a tiny window. // Will equalize heights soon to fix it. if (height < 0) { height = 0; } if (wp->w_height == height) { return; // nothing to do } wp->w_height = height; wp->w_pos_changed = true; win_set_inner_size(wp); } void scroll_to_fraction(win_T *wp, int prev_height) { linenr_T lnum; int sline, line_size; int height = wp->w_height_inner; // Don't change w_topline in any of these cases: // - window height is 0 // - 'scrollbind' is set and this isn't the current window // - window height is sufficient to display the whole buffer and first line // is visible. if (height > 0 && (!wp->w_p_scb || wp == curwin) && (height < wp->w_buffer->b_ml.ml_line_count || wp->w_topline > 1) ) { /* * Find a value for w_topline that shows the cursor at the same * relative position in the window as before (more or less). */ lnum = wp->w_cursor.lnum; if (lnum < 1) /* can happen when starting up */ lnum = 1; wp->w_wrow = ((long)wp->w_fraction * (long)height - 1L) / FRACTION_MULT; line_size = plines_win_col(wp, lnum, (long)(wp->w_cursor.col)) - 1; sline = wp->w_wrow - line_size; if (sline >= 0) { // Make sure the whole cursor line is visible, if possible. const int rows = plines_win(wp, lnum, false); if (sline > wp->w_height_inner - rows) { sline = wp->w_height_inner - rows; wp->w_wrow -= rows - line_size; } } if (sline < 0) { /* * Cursor line would go off top of screen if w_wrow was this high. * Make cursor line the first line in the window. If not enough * room use w_skipcol; */ wp->w_wrow = line_size; if (wp->w_wrow >= wp->w_height_inner && (wp->w_width_inner - win_col_off(wp)) > 0) { wp->w_skipcol += wp->w_width_inner - win_col_off(wp); wp->w_wrow--; while (wp->w_wrow >= wp->w_height_inner) { wp->w_skipcol += wp->w_width_inner - win_col_off(wp) + win_col_off2(wp); wp->w_wrow--; } } } else if (sline > 0) { while (sline > 0 && lnum > 1) { (void)hasFoldingWin(wp, lnum, &lnum, NULL, true, NULL); if (lnum == 1) { /* first line in buffer is folded */ line_size = 1; --sline; break; } lnum--; if (lnum == wp->w_topline) { line_size = plines_win_nofill(wp, lnum, true) + wp->w_topfill; } else { line_size = plines_win(wp, lnum, true); } sline -= line_size; } if (sline < 0) { /* * Line we want at top would go off top of screen. Use next * line instead. */ (void)hasFoldingWin(wp, lnum, NULL, &lnum, true, NULL); lnum++; wp->w_wrow -= line_size + sline; } else if (sline > 0) { // First line of file reached, use that as topline. lnum = 1; wp->w_wrow -= sline; } } set_topline(wp, lnum); } if (wp == curwin) { if (get_scrolloff_value(wp)) { update_topline(wp); } curs_columns(wp, false); // validate w_wrow } if (prev_height > 0) { wp->w_prev_fraction_row = wp->w_wrow; } win_comp_scroll(wp); redraw_later(wp, SOME_VALID); wp->w_redr_status = true; invalidate_botline_win(wp); } void win_set_inner_size(win_T *wp) { int width = wp->w_width_request; if (width == 0) { width = wp->w_width; } int prev_height = wp->w_height_inner; int height = wp->w_height_request; if (height == 0) { height = wp->w_height; } if (height != prev_height) { if (height > 0) { if (wp == curwin) { // w_wrow needs to be valid. When setting 'laststatus' this may // call win_new_height() recursively. validate_cursor(); } if (wp->w_height_inner != prev_height) { // -V547 return; // Recursive call already changed the size, bail out. } if (wp->w_wrow != wp->w_prev_fraction_row) { set_fraction(wp); } } wp->w_height_inner = height; wp->w_skipcol = 0; // There is no point in adjusting the scroll position when exiting. Some // values might be invalid. if (!exiting) { scroll_to_fraction(wp, prev_height); } redraw_later(wp, NOT_VALID); // SOME_VALID?? } if (width != wp->w_width_inner) { wp->w_width_inner = width; wp->w_lines_valid = 0; changed_line_abv_curs_win(wp); invalidate_botline_win(wp); if (wp == curwin) { update_topline(wp); curs_columns(wp, true); // validate w_wrow } redraw_later(wp, NOT_VALID); } if (wp->w_buffer->terminal) { terminal_check_size(wp->w_buffer->terminal); } wp->w_height_outer = (wp->w_height_inner + wp->w_border_adj[0] + wp->w_border_adj[2]); wp->w_width_outer = (wp->w_width_inner + wp->w_border_adj[1] + wp->w_border_adj[3]); } /// Set the width of a window. void win_new_width(win_T *wp, int width) { wp->w_width = width; win_set_inner_size(wp); wp->w_redr_status = true; wp->w_pos_changed = true; } void win_comp_scroll(win_T *wp) { const long old_w_p_scr = wp->w_p_scr; wp->w_p_scr = wp->w_height / 2; if (wp->w_p_scr == 0) { wp->w_p_scr = 1; } if (wp->w_p_scr != old_w_p_scr) { // Used by "verbose set scroll". wp->w_p_script_ctx[WV_SCROLL].script_ctx.sc_sid = SID_WINLAYOUT; wp->w_p_script_ctx[WV_SCROLL].script_ctx.sc_lnum = 0; } } /* * command_height: called whenever p_ch has been changed */ void command_height(void) { int h; frame_T *frp; int old_p_ch = curtab->tp_ch_used; /* Use the value of p_ch that we remembered. This is needed for when the * GUI starts up, we can't be sure in what order things happen. And when * p_ch was changed in another tab page. */ curtab->tp_ch_used = p_ch; // Find bottom frame with width of screen. frp = lastwin_nofloating()->w_frame; while (frp->fr_width != Columns && frp->fr_parent != NULL) { frp = frp->fr_parent; } /* Avoid changing the height of a window with 'winfixheight' set. */ while (frp->fr_prev != NULL && frp->fr_layout == FR_LEAF && frp->fr_win->w_p_wfh) frp = frp->fr_prev; if (starting != NO_SCREEN) { cmdline_row = Rows - p_ch; if (p_ch > old_p_ch) { /* p_ch got bigger */ while (p_ch > old_p_ch) { if (frp == NULL) { EMSG(_(e_noroom)); p_ch = old_p_ch; curtab->tp_ch_used = p_ch; cmdline_row = Rows - p_ch; break; } h = frp->fr_height - frame_minheight(frp, NULL); if (h > p_ch - old_p_ch) h = p_ch - old_p_ch; old_p_ch += h; frame_add_height(frp, -h); frp = frp->fr_prev; } /* Recompute window positions. */ (void)win_comp_pos(); // clear the lines added to cmdline if (full_screen) { grid_fill(&default_grid, cmdline_row, Rows, 0, Columns, ' ', ' ', 0); } msg_row = cmdline_row; redraw_cmdline = TRUE; return; } if (msg_row < cmdline_row) msg_row = cmdline_row; redraw_cmdline = TRUE; } frame_add_height(frp, (int)(old_p_ch - p_ch)); /* Recompute window positions. */ if (frp != lastwin->w_frame) (void)win_comp_pos(); } /* * Resize frame "frp" to be "n" lines higher (negative for less high). * Also resize the frames it is contained in. */ static void frame_add_height(frame_T *frp, int n) { frame_new_height(frp, frp->fr_height + n, FALSE, FALSE); for (;; ) { frp = frp->fr_parent; if (frp == NULL) break; frp->fr_height += n; } } /* * Get the file name at the cursor. * If Visual mode is active, use the selected text if it's in one line. * Returns the name in allocated memory, NULL for failure. */ char_u *grab_file_name(long count, linenr_T *file_lnum) { int options = FNAME_MESS | FNAME_EXP | FNAME_REL | FNAME_UNESC; if (VIsual_active) { size_t len; char_u *ptr; if (get_visual_text(NULL, &ptr, &len) == FAIL) return NULL; // Only recognize ":123" here if (file_lnum != NULL && ptr[len] == ':' && isdigit(ptr[len + 1])) { char_u *p = ptr + len + 1; *file_lnum = getdigits_long(&p, false, 0); } return find_file_name_in_path(ptr, len, options, count, curbuf->b_ffname); } return file_name_at_cursor(options | FNAME_HYP, count, file_lnum); } /* * Return the file name under or after the cursor. * * The 'path' option is searched if the file name is not absolute. * The string returned has been alloc'ed and should be freed by the caller. * NULL is returned if the file name or file is not found. * * options: * FNAME_MESS give error messages * FNAME_EXP expand to path * FNAME_HYP check for hypertext link * FNAME_INCL apply "includeexpr" */ char_u *file_name_at_cursor(int options, long count, linenr_T *file_lnum) { return file_name_in_line(get_cursor_line_ptr(), curwin->w_cursor.col, options, count, curbuf->b_ffname, file_lnum); } /* * Return the name of the file under or after ptr[col]. * Otherwise like file_name_at_cursor(). */ char_u * file_name_in_line ( char_u *line, int col, int options, long count, char_u *rel_fname, /* file we are searching relative to */ linenr_T *file_lnum /* line number after the file name */ ) { char_u *ptr; size_t len; bool in_type = true; bool is_url = false; /* * search forward for what could be the start of a file name */ ptr = line + col; while (*ptr != NUL && !vim_isfilec(*ptr)) { MB_PTR_ADV(ptr); } if (*ptr == NUL) { // nothing found if (options & FNAME_MESS) { EMSG(_("E446: No file name under cursor")); } return NULL; } /* * Search backward for first char of the file name. * Go one char back to ":" before "//" even when ':' is not in 'isfname'. */ while (ptr > line) { if ((len = (size_t)(utf_head_off(line, ptr - 1))) > 0) { ptr -= len + 1; } else if (vim_isfilec(ptr[-1]) || ((options & FNAME_HYP) && path_is_url((char *)ptr - 1))) { ptr--; } else { break; } } /* * Search forward for the last char of the file name. * Also allow "://" when ':' is not in 'isfname'. */ len = 0; while (vim_isfilec(ptr[len]) || (ptr[len] == '\\' && ptr[len + 1] == ' ') || ((options & FNAME_HYP) && path_is_url((char *)ptr + len)) || (is_url && vim_strchr((char_u *)":?&=", ptr[len]) != NULL)) { // After type:// we also include :, ?, & and = as valid characters, so that // http://google.com:8080?q=this&that=ok works. if ((ptr[len] >= 'A' && ptr[len] <= 'Z') || (ptr[len] >= 'a' && ptr[len] <= 'z')) { if (in_type && path_is_url((char *)ptr + len + 1)) { is_url = true; } } else { in_type = false; } if (ptr[len] == '\\' && ptr[len + 1] == ' ') { // Skip over the "\" in "\ ". ++len; } len += (size_t)(utfc_ptr2len(ptr + len)); } /* * If there is trailing punctuation, remove it. * But don't remove "..", could be a directory name. */ if (len > 2 && vim_strchr((char_u *)".,:;!", ptr[len - 1]) != NULL && ptr[len - 2] != '.') --len; if (file_lnum != NULL) { char_u *p; const char *line_english = " line "; const char *line_transl = _(line_msg); // Get the number after the file name and a separator character. // Also accept " line 999" with and without the same translation as // used in last_set_msg(). p = ptr + len; if (STRNCMP(p, line_english, STRLEN(line_english)) == 0) { p += STRLEN(line_english); } else if (STRNCMP(p, line_transl, STRLEN(line_transl)) == 0) { p += STRLEN(line_transl); } else { p = skipwhite(p); } if (*p != NUL) { if (!isdigit(*p)) { p++; // skip the separator } p = skipwhite(p); if (isdigit(*p)) { *file_lnum = getdigits_long(&p, false, 0); } } } return find_file_name_in_path(ptr, len, options, count, rel_fname); } /* * Add or remove a status line for the bottom window(s), according to the * value of 'laststatus'. */ void last_status ( int morewin /* pretend there are two or more windows */ ) { /* Don't make a difference between horizontal or vertical split. */ last_status_rec(topframe, (p_ls == 2 || (p_ls == 1 && (morewin || !one_window())))); } static void last_status_rec(frame_T *fr, int statusline) { frame_T *fp; win_T *wp; if (fr->fr_layout == FR_LEAF) { wp = fr->fr_win; if (wp->w_status_height != 0 && !statusline) { /* remove status line */ win_new_height(wp, wp->w_height + 1); wp->w_status_height = 0; comp_col(); } else if (wp->w_status_height == 0 && statusline) { /* Find a frame to take a line from. */ fp = fr; while (fp->fr_height <= frame_minheight(fp, NULL)) { if (fp == topframe) { EMSG(_(e_noroom)); return; } /* In a column of frames: go to frame above. If already at * the top or in a row of frames: go to parent. */ if (fp->fr_parent->fr_layout == FR_COL && fp->fr_prev != NULL) fp = fp->fr_prev; else fp = fp->fr_parent; } wp->w_status_height = 1; if (fp != fr) { frame_new_height(fp, fp->fr_height - 1, FALSE, FALSE); frame_fix_height(wp); (void)win_comp_pos(); } else win_new_height(wp, wp->w_height - 1); comp_col(); redraw_all_later(SOME_VALID); } } else if (fr->fr_layout == FR_ROW) { // vertically split windows, set status line for each one FOR_ALL_FRAMES(fp, fr->fr_child) { last_status_rec(fp, statusline); } } else { /* horizontally split window, set status line for last one */ for (fp = fr->fr_child; fp->fr_next != NULL; fp = fp->fr_next) ; last_status_rec(fp, statusline); } } /* * Return the number of lines used by the tab page line. */ int tabline_height(void) { if (ui_has(kUITabline)) { return 0; } assert(first_tabpage); switch (p_stal) { case 0: return 0; case 1: return (first_tabpage->tp_next == NULL) ? 0 : 1; } return 1; } /* * Return the minimal number of rows that is needed on the screen to display * the current number of windows. */ int min_rows(void) { if (firstwin == NULL) /* not initialized yet */ return MIN_LINES; int total = 0; FOR_ALL_TABS(tp) { int n = frame_minheight(tp->tp_topframe, NULL); if (total < n) { total = n; } } total += tabline_height(); total += 1; /* count the room for the command line */ return total; } /// Check that there is only one window (and only one tab page), not counting a /// help or preview window, unless it is the current window. Does not count /// "aucmd_win". Does not count floats unless it is current. bool only_one_window(void) FUNC_ATTR_PURE FUNC_ATTR_WARN_UNUSED_RESULT { // If there is another tab page there always is another window. if (first_tabpage->tp_next != NULL) { return false; } int count = 0; FOR_ALL_WINDOWS_IN_TAB(wp, curtab) { if (wp->w_buffer != NULL && (!((bt_help(wp->w_buffer) && !bt_help(curbuf)) || wp->w_floating || wp->w_p_pvw) || wp == curwin) && wp != aucmd_win) { count++; } } return count <= 1; } /* * Correct the cursor line number in other windows. Used after changing the * current buffer, and before applying autocommands. * When "do_curwin" is TRUE, also check current window. */ void check_lnums(int do_curwin) { FOR_ALL_TAB_WINDOWS(tp, wp) { if ((do_curwin || wp != curwin) && wp->w_buffer == curbuf) { // save the original cursor position and topline wp->w_save_cursor.w_cursor_save = wp->w_cursor; wp->w_save_cursor.w_topline_save = wp->w_topline; if (wp->w_cursor.lnum > curbuf->b_ml.ml_line_count) { wp->w_cursor.lnum = curbuf->b_ml.ml_line_count; } if (wp->w_topline > curbuf->b_ml.ml_line_count) { wp->w_topline = curbuf->b_ml.ml_line_count; } // save the corrected cursor position and topline wp->w_save_cursor.w_cursor_corr = wp->w_cursor; wp->w_save_cursor.w_topline_corr = wp->w_topline; } } } /// Reset cursor and topline to its stored values from check_lnums(). /// check_lnums() must have been called first! void reset_lnums(void) { FOR_ALL_TAB_WINDOWS(tp, wp) { if (wp->w_buffer == curbuf) { // Restore the value if the autocommand didn't change it. if (equalpos(wp->w_save_cursor.w_cursor_corr, wp->w_cursor)) { wp->w_cursor = wp->w_save_cursor.w_cursor_save; } if (wp->w_save_cursor.w_topline_corr == wp->w_topline) { wp->w_topline = wp->w_save_cursor.w_topline_save; } } } } /* * A snapshot of the window sizes, to restore them after closing the help * window. * Only these fields are used: * fr_layout * fr_width * fr_height * fr_next * fr_child * fr_win (only valid for the old curwin, NULL otherwise) */ /* * Create a snapshot of the current frame sizes. */ void make_snapshot(int idx) { clear_snapshot(curtab, idx); make_snapshot_rec(topframe, &curtab->tp_snapshot[idx]); } static void make_snapshot_rec(frame_T *fr, frame_T **frp) { *frp = xcalloc(1, sizeof(frame_T)); (*frp)->fr_layout = fr->fr_layout; (*frp)->fr_width = fr->fr_width; (*frp)->fr_height = fr->fr_height; if (fr->fr_next != NULL) make_snapshot_rec(fr->fr_next, &((*frp)->fr_next)); if (fr->fr_child != NULL) make_snapshot_rec(fr->fr_child, &((*frp)->fr_child)); if (fr->fr_layout == FR_LEAF && fr->fr_win == curwin) (*frp)->fr_win = curwin; } /* * Remove any existing snapshot. */ static void clear_snapshot(tabpage_T *tp, int idx) { clear_snapshot_rec(tp->tp_snapshot[idx]); tp->tp_snapshot[idx] = NULL; } static void clear_snapshot_rec(frame_T *fr) { if (fr != NULL) { clear_snapshot_rec(fr->fr_next); clear_snapshot_rec(fr->fr_child); xfree(fr); } } /* * Restore a previously created snapshot, if there is any. * This is only done if the screen size didn't change and the window layout is * still the same. */ void restore_snapshot ( int idx, int close_curwin /* closing current window */ ) { win_T *wp; if (curtab->tp_snapshot[idx] != NULL && curtab->tp_snapshot[idx]->fr_width == topframe->fr_width && curtab->tp_snapshot[idx]->fr_height == topframe->fr_height && check_snapshot_rec(curtab->tp_snapshot[idx], topframe) == OK) { wp = restore_snapshot_rec(curtab->tp_snapshot[idx], topframe); (void)win_comp_pos(); if (wp != NULL && close_curwin) { win_goto(wp); } redraw_all_later(NOT_VALID); } clear_snapshot(curtab, idx); } /// Check if frames "sn" and "fr" have the same layout, same following frames /// and same children. And the window pointer is valid. static int check_snapshot_rec(frame_T *sn, frame_T *fr) { if (sn->fr_layout != fr->fr_layout || (sn->fr_next == NULL) != (fr->fr_next == NULL) || (sn->fr_child == NULL) != (fr->fr_child == NULL) || (sn->fr_next != NULL && check_snapshot_rec(sn->fr_next, fr->fr_next) == FAIL) || (sn->fr_child != NULL && check_snapshot_rec(sn->fr_child, fr->fr_child) == FAIL) || (sn->fr_win != NULL && !win_valid(sn->fr_win))) return FAIL; return OK; } /* * Copy the size of snapshot frame "sn" to frame "fr". Do the same for all * following frames and children. * Returns a pointer to the old current window, or NULL. */ static win_T *restore_snapshot_rec(frame_T *sn, frame_T *fr) { win_T *wp = NULL; win_T *wp2; fr->fr_height = sn->fr_height; fr->fr_width = sn->fr_width; if (fr->fr_layout == FR_LEAF) { frame_new_height(fr, fr->fr_height, FALSE, FALSE); frame_new_width(fr, fr->fr_width, FALSE, FALSE); wp = sn->fr_win; } if (sn->fr_next != NULL) { wp2 = restore_snapshot_rec(sn->fr_next, fr->fr_next); if (wp2 != NULL) wp = wp2; } if (sn->fr_child != NULL) { wp2 = restore_snapshot_rec(sn->fr_child, fr->fr_child); if (wp2 != NULL) wp = wp2; } return wp; } /// Gets the focused window (the one holding the cursor) of the snapshot. static win_T *get_snapshot_focus(int idx) { if (curtab->tp_snapshot[idx] == NULL) { return NULL; } frame_T *sn = curtab->tp_snapshot[idx]; // This should be equivalent to the recursive algorithm found in // restore_snapshot as far as traveling nodes go. while (sn->fr_child != NULL || sn->fr_next != NULL) { while (sn->fr_child != NULL) { sn = sn->fr_child; } if (sn->fr_next != NULL) { sn = sn->fr_next; } } return win_valid(sn->fr_win) ? sn->fr_win : NULL; } /* * Set "win" to be the curwin and "tp" to be the current tab page. * restore_win() MUST be called to undo, also when FAIL is returned. * No autocommands will be executed until restore_win() is called. * When "no_display" is TRUE the display won't be affected, no redraw is * triggered, another tabpage access is limited. * Returns FAIL if switching to "win" failed. */ int switch_win(win_T **save_curwin, tabpage_T **save_curtab, win_T *win, tabpage_T *tp, int no_display) { block_autocmds(); return switch_win_noblock(save_curwin, save_curtab, win, tp, no_display); } // As switch_win() but without blocking autocommands. int switch_win_noblock(win_T **save_curwin, tabpage_T **save_curtab, win_T *win, tabpage_T *tp, int no_display) { *save_curwin = curwin; if (tp != NULL) { *save_curtab = curtab; if (no_display) { curtab->tp_firstwin = firstwin; curtab->tp_lastwin = lastwin; curtab = tp; firstwin = curtab->tp_firstwin; lastwin = curtab->tp_lastwin; } else goto_tabpage_tp(tp, FALSE, FALSE); } if (!win_valid(win)) { return FAIL; } curwin = win; curbuf = curwin->w_buffer; return OK; } // Restore current tabpage and window saved by switch_win(), if still valid. // When "no_display" is true the display won't be affected, no redraw is // triggered. void restore_win(win_T *save_curwin, tabpage_T *save_curtab, bool no_display) { restore_win_noblock(save_curwin, save_curtab, no_display); unblock_autocmds(); } // As restore_win() but without unblocking autocommands. void restore_win_noblock(win_T *save_curwin, tabpage_T *save_curtab, bool no_display) { if (save_curtab != NULL && valid_tabpage(save_curtab)) { if (no_display) { curtab->tp_firstwin = firstwin; curtab->tp_lastwin = lastwin; curtab = save_curtab; firstwin = curtab->tp_firstwin; lastwin = curtab->tp_lastwin; } else goto_tabpage_tp(save_curtab, FALSE, FALSE); } if (win_valid(save_curwin)) { curwin = save_curwin; curbuf = curwin->w_buffer; } } /// Make "buf" the current buffer. /// /// restore_buffer() MUST be called to undo. /// No autocommands will be executed. Use aucmd_prepbuf() if there are any. void switch_buffer(bufref_T *save_curbuf, buf_T *buf) { block_autocmds(); set_bufref(save_curbuf, curbuf); curbuf->b_nwindows--; curbuf = buf; curwin->w_buffer = buf; curbuf->b_nwindows++; } /// Restore the current buffer after using switch_buffer(). void restore_buffer(bufref_T *save_curbuf) { unblock_autocmds(); // Check for valid buffer, just in case. if (bufref_valid(save_curbuf)) { curbuf->b_nwindows--; curwin->w_buffer = save_curbuf->br_buf; curbuf = save_curbuf->br_buf; curbuf->b_nwindows++; } } /// Add match to the match list of window 'wp'. The pattern 'pat' will be /// highlighted with the group 'grp' with priority 'prio'. /// Optionally, a desired ID 'id' can be specified (greater than or equal to 1). /// /// @param[in] id a desired ID 'id' can be specified /// (greater than or equal to 1). -1 must be specified if no /// particular ID is desired /// @param[in] conceal_char pointer to conceal replacement char /// @return ID of added match, -1 on failure. int match_add(win_T *wp, const char *const grp, const char *const pat, int prio, int id, list_T *pos_list, const char *const conceal_char) FUNC_ATTR_NONNULL_ARG(1, 2) { matchitem_T *cur; matchitem_T *prev; matchitem_T *m; int hlg_id; regprog_T *regprog = NULL; int rtype = SOME_VALID; if (*grp == NUL || (pat != NULL && *pat == NUL)) { return -1; } if (id < -1 || id == 0) { EMSGN(_("E799: Invalid ID: %" PRId64 " (must be greater than or equal to 1)"), id); return -1; } if (id != -1) { cur = wp->w_match_head; while (cur != NULL) { if (cur->id == id) { EMSGN(_("E801: ID already taken: %" PRId64), id); return -1; } cur = cur->next; } } if ((hlg_id = syn_name2id((const char_u *)grp)) == 0) { EMSG2(_(e_nogroup), grp); return -1; } if (pat != NULL && (regprog = vim_regcomp((char_u *)pat, RE_MAGIC)) == NULL) { EMSG2(_(e_invarg2), pat); return -1; } // Find available match ID. while (id == -1) { cur = wp->w_match_head; while (cur != NULL && cur->id != wp->w_next_match_id) cur = cur->next; if (cur == NULL) id = wp->w_next_match_id; wp->w_next_match_id++; } // Build new match. m = xcalloc(1, sizeof(matchitem_T)); m->id = id; m->priority = prio; m->pattern = pat == NULL ? NULL: (char_u *)xstrdup(pat); m->hlg_id = hlg_id; m->match.regprog = regprog; m->match.rmm_ic = FALSE; m->match.rmm_maxcol = 0; m->conceal_char = 0; if (conceal_char != NULL) { m->conceal_char = utf_ptr2char((const char_u *)conceal_char); } // Set up position matches if (pos_list != NULL) { linenr_T toplnum = 0; linenr_T botlnum = 0; int i = 0; TV_LIST_ITER(pos_list, li, { linenr_T lnum = 0; colnr_T col = 0; int len = 1; bool error = false; if (TV_LIST_ITEM_TV(li)->v_type == VAR_LIST) { const list_T *const subl = TV_LIST_ITEM_TV(li)->vval.v_list; const listitem_T *subli = tv_list_first(subl); if (subli == NULL) { emsgf(_("E5030: Empty list at position %d"), (int)tv_list_idx_of_item(pos_list, li)); goto fail; } lnum = tv_get_number_chk(TV_LIST_ITEM_TV(subli), &error); if (error) { goto fail; } if (lnum <= 0) { continue; } m->pos.pos[i].lnum = lnum; subli = TV_LIST_ITEM_NEXT(subl, subli); if (subli != NULL) { col = tv_get_number_chk(TV_LIST_ITEM_TV(subli), &error); if (error) { goto fail; } if (col < 0) { continue; } subli = TV_LIST_ITEM_NEXT(subl, subli); if (subli != NULL) { len = tv_get_number_chk(TV_LIST_ITEM_TV(subli), &error); if (len < 0) { continue; } if (error) { goto fail; } } } m->pos.pos[i].col = col; m->pos.pos[i].len = len; } else if (TV_LIST_ITEM_TV(li)->v_type == VAR_NUMBER) { if (TV_LIST_ITEM_TV(li)->vval.v_number <= 0) { continue; } m->pos.pos[i].lnum = TV_LIST_ITEM_TV(li)->vval.v_number; m->pos.pos[i].col = 0; m->pos.pos[i].len = 0; } else { emsgf(_("E5031: List or number required at position %d"), (int)tv_list_idx_of_item(pos_list, li)); goto fail; } if (toplnum == 0 || lnum < toplnum) { toplnum = lnum; } if (botlnum == 0 || lnum >= botlnum) { botlnum = lnum + 1; } i++; if (i >= MAXPOSMATCH) { break; } }); // Calculate top and bottom lines for redrawing area if (toplnum != 0){ if (wp->w_buffer->b_mod_set) { if (wp->w_buffer->b_mod_top > toplnum) { wp->w_buffer->b_mod_top = toplnum; } if (wp->w_buffer->b_mod_bot < botlnum) { wp->w_buffer->b_mod_bot = botlnum; } } else { wp->w_buffer->b_mod_set = true; wp->w_buffer->b_mod_top = toplnum; wp->w_buffer->b_mod_bot = botlnum; wp->w_buffer->b_mod_xlines = 0; } m->pos.toplnum = toplnum; m->pos.botlnum = botlnum; rtype = VALID; } } // Insert new match. The match list is in ascending order with regard to // the match priorities. cur = wp->w_match_head; prev = cur; while (cur != NULL && prio >= cur->priority) { prev = cur; cur = cur->next; } if (cur == prev) wp->w_match_head = m; else prev->next = m; m->next = cur; redraw_later(wp, rtype); return id; fail: xfree(m); return -1; } /// Delete match with ID 'id' in the match list of window 'wp'. /// Print error messages if 'perr' is TRUE. int match_delete(win_T *wp, int id, int perr) { matchitem_T *cur = wp->w_match_head; matchitem_T *prev = cur; int rtype = SOME_VALID; if (id < 1) { if (perr) { EMSGN(_("E802: Invalid ID: %" PRId64 " (must be greater than or equal to 1)"), id); } return -1; } while (cur != NULL && cur->id != id) { prev = cur; cur = cur->next; } if (cur == NULL) { if (perr) { EMSGN(_("E803: ID not found: %" PRId64), id); } return -1; } if (cur == prev) wp->w_match_head = cur->next; else prev->next = cur->next; vim_regfree(cur->match.regprog); xfree(cur->pattern); if (cur->pos.toplnum != 0) { if (wp->w_buffer->b_mod_set) { if (wp->w_buffer->b_mod_top > cur->pos.toplnum) { wp->w_buffer->b_mod_top = cur->pos.toplnum; } if (wp->w_buffer->b_mod_bot < cur->pos.botlnum) { wp->w_buffer->b_mod_bot = cur->pos.botlnum; } } else { wp->w_buffer->b_mod_set = true; wp->w_buffer->b_mod_top = cur->pos.toplnum; wp->w_buffer->b_mod_bot = cur->pos.botlnum; wp->w_buffer->b_mod_xlines = 0; } rtype = VALID; } xfree(cur); redraw_later(wp, rtype); return 0; } /* * Delete all matches in the match list of window 'wp'. */ void clear_matches(win_T *wp) { matchitem_T *m; while (wp->w_match_head != NULL) { m = wp->w_match_head->next; vim_regfree(wp->w_match_head->match.regprog); xfree(wp->w_match_head->pattern); xfree(wp->w_match_head); wp->w_match_head = m; } redraw_later(wp, SOME_VALID); } /* * Get match from ID 'id' in window 'wp'. * Return NULL if match not found. */ matchitem_T *get_match(win_T *wp, int id) { matchitem_T *cur = wp->w_match_head; while (cur != NULL && cur->id != id) cur = cur->next; return cur; } /// Check that "topfrp" and its children are at the right height. /// /// @param topfrp top frame pointer /// @param height expected height static bool frame_check_height(const frame_T *topfrp, int height) FUNC_ATTR_PURE FUNC_ATTR_WARN_UNUSED_RESULT FUNC_ATTR_NONNULL_ALL { if (topfrp->fr_height != height) { return false; } if (topfrp->fr_layout == FR_ROW) { const frame_T *frp; FOR_ALL_FRAMES(frp, topfrp->fr_child) { if (frp->fr_height != height) { return false; } } } return true; } /// Check that "topfrp" and its children are at the right width. /// /// @param topfrp top frame pointer /// @param width expected width static bool frame_check_width(const frame_T *topfrp, int width) FUNC_ATTR_PURE FUNC_ATTR_WARN_UNUSED_RESULT FUNC_ATTR_NONNULL_ALL { if (topfrp->fr_width != width) { return false; } if (topfrp->fr_layout == FR_COL) { const frame_T *frp; FOR_ALL_FRAMES(frp, topfrp->fr_child) { if (frp->fr_width != width) { return false; } } } return true; } int win_getid(typval_T *argvars) { if (argvars[0].v_type == VAR_UNKNOWN) { return curwin->handle; } int winnr = tv_get_number(&argvars[0]); win_T *wp; if (winnr > 0) { if (argvars[1].v_type == VAR_UNKNOWN) { wp = firstwin; } else { tabpage_T *tp = NULL; int tabnr = tv_get_number(&argvars[1]); FOR_ALL_TABS(tp2) { if (--tabnr == 0) { tp = tp2; break; } } if (tp == NULL) { return -1; } if (tp == curtab) { wp = firstwin; } else { wp = tp->tp_firstwin; } } for ( ; wp != NULL; wp = wp->w_next) { if (--winnr == 0) { return wp->handle; } } } return 0; } int win_gotoid(typval_T *argvars) { int id = tv_get_number(&argvars[0]); FOR_ALL_TAB_WINDOWS(tp, wp) { if (wp->handle == id) { goto_tabpage_win(tp, wp); return 1; } } return 0; } void win_get_tabwin(handle_T id, int *tabnr, int *winnr) { *tabnr = 0; *winnr = 0; int tnum = 1, wnum = 1; FOR_ALL_TABS(tp) { FOR_ALL_WINDOWS_IN_TAB(wp, tp) { if (wp->handle == id) { *winnr = wnum; *tabnr = tnum; return; } wnum++; } tnum++; wnum = 1; } } void win_id2tabwin(typval_T *const argvars, typval_T *const rettv) { int winnr = 1; int tabnr = 1; handle_T id = (handle_T)tv_get_number(&argvars[0]); win_get_tabwin(id, &tabnr, &winnr); list_T *const list = tv_list_alloc_ret(rettv, 2); tv_list_append_number(list, tabnr); tv_list_append_number(list, winnr); } win_T * win_id2wp(typval_T *argvars) { return win_id2wp_tp(argvars, NULL); } // Return the window and tab pointer of window "id". win_T * win_id2wp_tp(typval_T *argvars, tabpage_T **tpp) { int id = tv_get_number(&argvars[0]); FOR_ALL_TAB_WINDOWS(tp, wp) { if (wp->handle == id) { if (tpp != NULL) { *tpp = tp; } return wp; } } return NULL; } int win_id2win(typval_T *argvars) { int nr = 1; int id = tv_get_number(&argvars[0]); FOR_ALL_WINDOWS_IN_TAB(wp, curtab) { if (wp->handle == id) { return nr; } nr++; } return 0; } void win_findbuf(typval_T *argvars, list_T *list) { int bufnr = tv_get_number(&argvars[0]); FOR_ALL_TAB_WINDOWS(tp, wp) { if (!wp->w_closing && wp->w_buffer->b_fnum == bufnr) { tv_list_append_number(list, wp->handle); } } } // Get the layout of the given tab page for winlayout(). void get_framelayout(const frame_T *fr, list_T *l, bool outer) { list_T *fr_list; if (fr == NULL) { return; } if (outer) { // outermost call from f_winlayout() fr_list = l; } else { fr_list = tv_list_alloc(2); tv_list_append_list(l, fr_list); } if (fr->fr_layout == FR_LEAF) { if (fr->fr_win != NULL) { tv_list_append_string(fr_list, "leaf", -1); tv_list_append_number(fr_list, fr->fr_win->handle); } } else { tv_list_append_string(fr_list, fr->fr_layout == FR_ROW ? "row" : "col", -1); list_T *const win_list = tv_list_alloc(kListLenUnknown); tv_list_append_list(fr_list, win_list); const frame_T *child = fr->fr_child; while (child != NULL) { get_framelayout(child, win_list, false); child = child->fr_next; } } } void win_ui_flush(void) { FOR_ALL_TAB_WINDOWS(tp, wp) { if (wp->w_pos_changed && wp->w_grid_alloc.chars != NULL) { if (tp == curtab) { ui_ext_win_position(wp); } else { ui_call_win_hide(wp->w_grid_alloc.handle); } wp->w_pos_changed = false; } if (tp == curtab) { ui_ext_win_viewport(wp); } } } win_T *lastwin_nofloating(void) { win_T *res = lastwin; while (res->w_floating) { res = res->w_prev; } return res; }