diff options
Diffstat (limited to 'src/nvim/window.c')
| -rw-r--r-- | src/nvim/window.c | 565 |
1 files changed, 360 insertions, 205 deletions
diff --git a/src/nvim/window.c b/src/nvim/window.c index b631cbe7c8..c9c2124730 100644 --- a/src/nvim/window.c +++ b/src/nvim/window.c @@ -133,6 +133,35 @@ static void log_frame_layout(frame_T *frame) } #endif +/// Check if the current window is allowed to move to a different buffer. +/// +/// @return If the window has 'winfixbuf', or this function will return false. +bool check_can_set_curbuf_disabled(void) +{ + if (curwin->w_p_wfb) { + emsg(_(e_winfixbuf_cannot_go_to_buffer)); + return false; + } + + return true; +} + +/// Check if the current window is allowed to move to a different buffer. +/// +/// @param forceit If true, do not error. If false and 'winfixbuf' is enabled, error. +/// +/// @return If the window has 'winfixbuf', then forceit must be true +/// or this function will return false. +bool check_can_set_curbuf_forceit(int forceit) +{ + if (!forceit && curwin->w_p_wfb) { + emsg(_(e_winfixbuf_cannot_go_to_buffer)); + return false; + } + + return true; +} + /// @return the current window, unless in the cmdline window and "prevwin" is /// set, then return "prevwin". win_T *prevwin_curwin(void) @@ -455,9 +484,14 @@ newwindow: case 'H': case 'L': CHECK_CMDWIN; - win_totop(Prenum, - ((nchar == 'H' || nchar == 'L') ? WSP_VERT : 0) - | ((nchar == 'H' || nchar == 'K') ? WSP_TOP : WSP_BOT)); + if (one_window(curwin)) { + beep_flush(); + } else { + const int dir = ((nchar == 'H' || nchar == 'L') ? WSP_VERT : 0) + | ((nchar == 'H' || nchar == 'K') ? WSP_TOP : WSP_BOT); + + win_splitmove(curwin, Prenum, dir); + } break; // make all windows the same width and/or height @@ -592,7 +626,7 @@ wingotofile: ptr = xmemdupz(ptr, len); find_pattern_in_path(ptr, 0, len, true, Prenum == 0, - type, Prenum1, ACTION_SPLIT, 1, MAXLNUM); + type, Prenum1, ACTION_SPLIT, 1, MAXLNUM, false); xfree(ptr); curwin->w_set_curswant = true; break; @@ -718,6 +752,7 @@ void win_set_buf(win_T *win, buf_T *buf, bool noautocmd, Error *err) kErrorTypeException, "Failed to switch to window %d", win->handle); + goto cleanup; } try_start(); @@ -729,10 +764,11 @@ void win_set_buf(win_T *win, buf_T *buf, bool noautocmd, Error *err) buf->handle); } - // If window is not current, state logic will not validate its cursor. - // So do it now. - validate_cursor(); + // If window is not current, state logic will not validate its cursor. So do it now. + // Still needed if do_buffer returns FAIL (e.g: autocmds abort script after buffer was set). + validate_cursor(curwin); +cleanup: restore_win_noblock(&switchwin, true); if (noautocmd) { unblock_autocmds(); @@ -817,9 +853,10 @@ void ui_ext_win_position(win_T *wp, bool validate) int comp_row = (int)row - (south ? wp->w_height_outer : 0); int comp_col = (int)col - (east ? wp->w_width_outer : 0); + int above_ch = wp->w_config.zindex < kZIndexMessages ? (int)p_ch : 0; comp_row += grid->comp_row; comp_col += grid->comp_col; - comp_row = MAX(MIN(comp_row, Rows - wp->w_height_outer - (p_ch > 0 ? 1 : 0)), 0); + comp_row = MAX(MIN(comp_row, Rows - wp->w_height_outer - above_ch), 0); if (!c.fixed || east) { comp_col = MAX(MIN(comp_col, Columns - wp->w_width_outer), 0); } @@ -902,19 +939,35 @@ void ui_ext_win_viewport(win_T *wp) } } -/// If "split_disallowed" is set give an error and return FAIL. +/// If "split_disallowed" is set, or "wp"'s buffer is closing, give an error and return FAIL. /// Otherwise return OK. -static int check_split_disallowed(void) +int check_split_disallowed(const win_T *wp) + FUNC_ATTR_NONNULL_ALL +{ + Error err = ERROR_INIT; + const bool ok = check_split_disallowed_err(wp, &err); + if (ERROR_SET(&err)) { + emsg(_(err.msg)); + api_clear_error(&err); + } + return ok ? OK : FAIL; +} + +/// Like `check_split_disallowed`, but set `err` to the (untranslated) error message on failure and +/// return false. Otherwise return true. +/// @see check_split_disallowed +bool check_split_disallowed_err(const win_T *wp, Error *err) + FUNC_ATTR_NONNULL_ALL { if (split_disallowed > 0) { - emsg(_("E242: Can't split a window while closing another")); - return FAIL; + api_set_error(err, kErrorTypeException, "E242: Can't split a window while closing another"); + return false; } - if (curwin->w_buffer->b_locked_split) { - emsg(_(e_cannot_split_window_when_closing_buffer)); - return FAIL; + if (wp->w_buffer->b_locked_split) { + api_set_error(err, kErrorTypeException, "%s", e_cannot_split_window_when_closing_buffer); + return false; } - return OK; + return true; } // split the current window, implements CTRL-W s and :split @@ -933,7 +986,7 @@ static int check_split_disallowed(void) // return FAIL for failure, OK otherwise int win_split(int size, int flags) { - if (check_split_disallowed() == FAIL) { + if (check_split_disallowed(curwin) == FAIL) { return FAIL; } @@ -957,14 +1010,19 @@ int win_split(int size, int flags) clear_snapshot(curtab, SNAP_HELP_IDX); } - return win_split_ins(size, flags, NULL, 0) == NULL ? FAIL : OK; + return win_split_ins(size, flags, NULL, 0, NULL) == NULL ? FAIL : OK; } /// 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. +/// When "to_flatten" is not NULL: flatten this frame before reorganising frames; +/// remains unflattened on failure. +/// +/// On failure, if "new_wp" was not NULL, no changes will have been made to the +/// window layout or sizes. /// @return NULL for failure, or pointer to new window -win_T *win_split_ins(int size, int flags, win_T *new_wp, int dir) +win_T *win_split_ins(int size, int flags, win_T *new_wp, int dir, frame_T *to_flatten) { win_T *wp = new_wp; @@ -985,13 +1043,12 @@ win_T *win_split_ins(int size, int flags, win_T *new_wp, int dir) int need_status = 0; int new_size = size; - bool new_in_layout = (new_wp == NULL || new_wp->w_floating); bool vertical = flags & WSP_VERT; bool toplevel = flags & (WSP_TOP | WSP_BOT); // 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) { + if (one_window(firstwin) && p_ls == 1 && oldwin->w_status_height == 0) { + if (oldwin->w_height <= p_wmh) { emsg(_(e_noroom)); return NULL; } @@ -1040,7 +1097,7 @@ win_T *win_split_ins(int size, int flags, win_T *new_wp, int dir) available = oldwin->w_frame->fr_width; needed += minwidth; } - if (available < needed && new_in_layout) { + if (available < needed) { emsg(_(e_noroom)); return NULL; } @@ -1120,7 +1177,7 @@ win_T *win_split_ins(int size, int flags, win_T *new_wp, int dir) available = oldwin->w_frame->fr_height; needed += minheight; } - if (available < needed && new_in_layout) { + if (available < needed) { emsg(_(e_noroom)); return NULL; } @@ -1190,13 +1247,13 @@ win_T *win_split_ins(int size, int flags, win_T *new_wp, int dir) if (new_wp == NULL) { wp = win_alloc(oldwin, false); } else { - win_append(oldwin, wp); + win_append(oldwin, wp, NULL); } } else { if (new_wp == NULL) { wp = win_alloc(oldwin->w_prev, false); } else { - win_append(oldwin->w_prev, wp); + win_append(oldwin->w_prev, wp, NULL); } } @@ -1210,13 +1267,37 @@ win_T *win_split_ins(int size, int flags, win_T *new_wp, int dir) // 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); + ui_comp_remove_grid(&wp->w_grid_alloc); + if (ui_has(kUIMultigrid)) { + wp->w_pos_changed = true; + } else { + // No longer a float, a non-multigrid UI shouldn't draw it as such + ui_call_win_hide(wp->w_grid_alloc.handle); + win_free_grid(wp, true); + } + + // External windows are independent of tabpages, and may have been the curwin of others. + if (wp->w_config.external) { + FOR_ALL_TABS(tp) { + if (tp != curtab && tp->tp_curwin == wp) { + tp->tp_curwin = tp->tp_firstwin; + } + } + } + wp->w_floating = false; + new_frame(wp); + // non-floating window doesn't store float config or have a border. wp->w_config = WIN_CONFIG_INIT; CLEAR_FIELD(wp->w_border_adj); } + // Going to reorganize frames now, make sure they're flat. + if (to_flatten != NULL) { + frame_flatten(to_flatten); + } + bool before; frame_T *curfrp; @@ -1452,7 +1533,7 @@ win_T *win_split_ins(int size, int flags, win_T *new_wp, int dir) if (!(flags & WSP_NOENTER)) { // make the new window the current window - win_enter_ext(wp, WEE_TRIGGER_NEW_AUTOCMDS | WEE_TRIGGER_ENTER_AUTOCMDS + win_enter_ext(wp, (new_wp == NULL ? WEE_TRIGGER_NEW_AUTOCMDS : 0) | WEE_TRIGGER_ENTER_AUTOCMDS | WEE_TRIGGER_LEAVE_AUTOCMDS); } if (vertical) { @@ -1689,7 +1770,7 @@ static void win_exchange(int Prenum) return; } - if (firstwin == curwin && lastwin_nofloating() == curwin) { + if (one_window(curwin)) { // just one window beep_flush(); return; @@ -1731,13 +1812,13 @@ static void win_exchange(int Prenum) if (wp->w_prev != curwin) { win_remove(curwin, NULL); frame_remove(curwin->w_frame); - win_append(wp->w_prev, curwin); + win_append(wp->w_prev, curwin, NULL); frame_insert(frp, curwin->w_frame); } if (wp != wp2) { win_remove(wp, NULL); frame_remove(wp->w_frame); - win_append(wp2, wp); + win_append(wp2, wp, NULL); if (frp2 == NULL) { frame_insert(wp->w_frame->fr_parent->fr_child, wp->w_frame); } else { @@ -1781,7 +1862,7 @@ static void win_rotate(bool upwards, int count) return; } - if (count <= 0 || (firstwin == curwin && lastwin_nofloating() == curwin)) { + if (count <= 0 || one_window(curwin)) { // nothing to do beep_flush(); return; @@ -1811,7 +1892,7 @@ static void win_rotate(bool upwards, int count) // 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); + win_append(frp->fr_win, wp1, NULL); frame_append(frp, wp1->w_frame); wp2 = frp->fr_win; // previously last window @@ -1826,7 +1907,7 @@ static void win_rotate(bool upwards, int count) 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); + win_append(frp->fr_parent->fr_child->fr_win->w_prev, wp1, NULL); frame_insert(frp->fr_parent->fr_child, frp); } @@ -1855,48 +1936,57 @@ static void win_rotate(bool upwards, int count) redraw_all_later(UPD_NOT_VALID); } -// Move the current window to the very top/bottom/left/right of the screen. -static void win_totop(int size, int flags) +/// Move "wp" into a new split in a given direction, possibly relative to the +/// current window. +/// "wp" must be valid in the current tabpage. +/// Returns FAIL for failure, OK otherwise. +int win_splitmove(win_T *wp, int size, int flags) { int dir = 0; - int height = curwin->w_height; + int height = wp->w_height; - if (firstwin == curwin && lastwin_nofloating() == curwin) { - beep_flush(); - return; + if (one_window(wp)) { + return OK; // nothing to do } - if (is_aucmd_win(curwin)) { - return; + if (is_aucmd_win(wp) || check_split_disallowed(wp) == FAIL) { + return FAIL; } - if (check_split_disallowed() == FAIL) { - return; + + frame_T *unflat_altfr = NULL; + if (wp->w_floating) { + win_remove(wp, NULL); + } else { + // Remove the window and frame from the tree of frames. Don't flatten any + // frames yet so we can restore things if win_split_ins fails. + winframe_remove(wp, &dir, NULL, &unflat_altfr); + win_remove(wp, NULL); + last_status(false); // may need to remove last status line + win_comp_pos(); // recompute window positions } - 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, true); + // Split a window on the desired side and put "wp" there. + if (win_split_ins(size, flags, wp, dir, unflat_altfr) == NULL) { + if (!wp->w_floating) { + // win_split_ins doesn't change sizes or layout if it fails to insert an + // existing window, so just undo winframe_remove. + winframe_restore(wp, dir, unflat_altfr); } - } else { - // Remove the window and frame from the tree of frames. - winframe_remove(curwin, &dir, NULL); + win_append(wp->w_prev, wp, NULL); + return FAIL; } - win_remove(curwin, NULL); - last_status(false); // may need to remove last status line - win_comp_pos(); // recompute window positions - // Split a window on the desired side and put the window there. - win_split_ins(size, flags, curwin, dir); - if (!(flags & WSP_VERT)) { - win_setheight(height); + // If splitting horizontally, try to preserve height. + // Note that win_split_ins autocommands may have immediately closed "wp", or made it floating! + if (size == 0 && !(flags & WSP_VERT) && win_valid(wp) && !wp->w_floating) { + win_setheight_win(height, wp); if (p_ea) { - win_equal(curwin, true, 'v'); + // Equalize windows. Note that win_split_ins autocommands may have + // made a window other than "wp" current. + win_equal(curwin, curwin == wp, 'v'); } } + + return OK; } // Move window "win1" to below/right of "win2" and make "win1" the current @@ -1954,7 +2044,7 @@ void win_move_after(win_T *win1, win_T *win2) } win_remove(win1, NULL); frame_remove(win1->w_frame); - win_append(win2, win1); + win_append(win2, win1, NULL); frame_append(win2->w_frame, win1->w_frame); win_comp_pos(); // recompute w_winrow for all windows @@ -2433,37 +2523,13 @@ bool last_window(win_T *win) FUNC_ATTR_PURE FUNC_ATTR_WARN_UNUSED_RESULT } /// Check if "win" is the only non-floating window in the current tabpage. -bool one_window(win_T *win) FUNC_ATTR_PURE FUNC_ATTR_WARN_UNUSED_RESULT -{ - if (win->w_floating) { - return false; - } - - bool seen_one = false; - - FOR_ALL_WINDOWS_IN_TAB(wp, curtab) { - if (!wp->w_floating) { - 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 +/// This should be used in place of ONE_WINDOW when necessary, +/// with "firstwin" or the affected window as argument depending on the situation. +bool one_window(win_T *win) FUNC_ATTR_PURE FUNC_ATTR_WARN_UNUSED_RESULT { - return wp != NULL && firstwin == wp && !(wp->w_next && !wp->w_floating); + assert(!firstwin->w_floating); + return firstwin == win && (win->w_next == NULL || win->w_next->w_floating); } /// Check if floating windows in the current tab can be closed. @@ -2508,7 +2574,7 @@ bool can_close_in_cmdwin(win_T *win, Error *err) /// @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. +/// @return false if there are other windows and nothing is done, true otherwise. static bool close_last_window_tabpage(win_T *win, bool free_buf, tabpage_T *prev_curtab) FUNC_ATTR_NONNULL_ARG(1) { @@ -2532,10 +2598,6 @@ static bool close_last_window_tabpage(win_T *win, bool free_buf, tabpage_T *prev // that below. goto_tabpage_tp(alt_tabpage(), false, true); - // save index for tabclosed event - char prev_idx[NUMBUFLEN]; - snprintf(prev_idx, NUMBUFLEN, "%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) { @@ -2629,6 +2691,9 @@ int win_close(win_T *win, bool free_buf, bool force) return FAIL; } } + if (!win_valid_any_tab(win)) { + return FAIL; // window already closed by autocommands + } } else { emsg(e_floatonly); return FAIL; @@ -2713,10 +2778,8 @@ int win_close(win_T *win, bool free_buf, bool force) win_close_buffer(win, free_buf ? DOBUF_UNLOAD : 0, true); - if (only_one_window() && win_valid(win) && win->w_buffer == NULL - && (last_window(win) || curtab != prev_curtab - || close_last_window_tabpage(win, free_buf, prev_curtab)) - && !win->w_floating) { + if (win_valid(win) && win->w_buffer == NULL + && !win->w_floating && last_window(win)) { // Autocommands have closed all windows, quit now. Restore // curwin->w_buffer, otherwise writing ShaDa file may fail. if (curwin->w_buffer == NULL) { @@ -2728,10 +2791,7 @@ int win_close(win_T *win, bool free_buf, bool force) if (curtab != prev_curtab && win_valid_any_tab(win) && win->w_buffer == NULL) { // Need to close the window anyway, since the buffer is NULL. - // Don't trigger autocmds with a NULL buffer. - block_autocmds(); win_close_othertab(win, false, prev_curtab); - unblock_autocmds(); return FAIL; } @@ -2758,13 +2818,10 @@ int win_close(win_T *win, bool free_buf, bool force) ui_comp_remove_grid(&win->w_grid_alloc); assert(first_tabpage != NULL); // suppress clang "Dereference of NULL pointer" if (win->w_config.external) { - for (tabpage_T *tp = first_tabpage; tp != NULL; tp = tp->tp_next) { - if (tp == curtab) { - continue; - } - if (tp->tp_curwin == win) { + FOR_ALL_TABS(tp) { + if (tp != curtab && 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. + // but carrying out this change anyway shouldn't be a catastrophe. tp->tp_curwin = tp->tp_firstwin; } } @@ -2815,7 +2872,7 @@ int win_close(win_T *win, bool free_buf, bool force) // The cursor position may be invalid if the buffer changed after last // using the window. - check_cursor(); + check_cursor(curwin); } if (!was_floating) { @@ -2905,10 +2962,14 @@ void win_close_othertab(win_T *win, int free_buf, tabpage_T *tp) } // 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 the buffer is NULL, it isn't safe to trigger autocommands, + // and win_close() should have already triggered WinClosed. + if (win->w_buffer != NULL) { + do_autocmd_winclosed(win); + // autocmd may have freed the window already. + if (!win_valid_any_tab(win)) { + return; + } } if (win->w_buffer != NULL) { @@ -3005,24 +3066,11 @@ static win_T *win_free_mem(win_T *win, int *dirp, tabpage_T *tp) if (!win->w_floating) { // Remove the window and its frame from the tree of frames. frame_T *frp = win->w_frame; - wp = winframe_remove(win, dirp, tp); + wp = winframe_remove(win, dirp, tp, NULL); xfree(frp); } else { *dirp = 'h'; // Dummy value. - if (tp == NULL) { - if (win_valid(prevwin) && prevwin != win) { - wp = prevwin; - } else { - wp = firstwin; - } - } else { - assert(tp != curtab); - if (tabpage_win_valid(tp, tp->tp_prevwin) && tp->tp_prevwin != win) { - wp = tp->tp_prevwin; - } else { - wp = tp->tp_firstwin; - } - } + wp = win_float_find_altwin(win, tp); } win_free(win, tp); @@ -3086,9 +3134,64 @@ void win_free_all(void) /// /// @param dirp set to 'v' or 'h' for direction if 'ea' /// @param tp tab page "win" is in, NULL for current +/// @param unflat_altfr if not NULL, set to pointer of frame that got +/// the space, and it is not flattened /// /// @return a pointer to the window that got the freed up space. -win_T *winframe_remove(win_T *win, int *dirp, tabpage_T *tp) +win_T *winframe_remove(win_T *win, int *dirp, tabpage_T *tp, frame_T **unflat_altfr) + FUNC_ATTR_NONNULL_ARG(1, 2) +{ + frame_T *altfr; + win_T *wp = winframe_find_altwin(win, dirp, tp, &altfr); + if (wp == NULL) { + return NULL; + } + + frame_T *frp_close = win->w_frame; + + // Save the position of the containing frame (which will also contain the + // altframe) before we remove anything, to recompute window positions later. + const win_T *const topleft = frame2win(frp_close->fr_parent); + int row = topleft->w_winrow; + int col = topleft->w_wincol; + + // Remove this frame from the list of frames. + frame_remove(frp_close); + + if (*dirp == 'v') { + frame_new_height(altfr, altfr->fr_height + frp_close->fr_height, + altfr == frp_close->fr_next, false); + } else { + assert(*dirp == 'h'); + frame_new_width(altfr, altfr->fr_width + frp_close->fr_width, + altfr == frp_close->fr_next, false); + } + + // If the altframe wasn't adjacent and left/above, resizing it will have + // changed window positions within the parent frame. Recompute them. + if (altfr != frp_close->fr_prev) { + frame_comp_pos(frp_close->fr_parent, &row, &col); + } + + if (unflat_altfr == NULL) { + frame_flatten(altfr); + } else { + *unflat_altfr = altfr; + } + + return wp; +} + +/// Find the window that will get the freed space from a call to `winframe_remove`. +/// Makes no changes to the window layout. +/// +/// @param dirp set to 'v' or 'h' for the direction where "altfr" will be resized +/// to fill the space +/// @param tp tab page "win" is in, NULL for current +/// @param altfr if not NULL, set to pointer of frame that will get the space +/// +/// @return a pointer to the window that will get the freed up space. +win_T *winframe_find_altwin(win_T *win, int *dirp, tabpage_T *tp, frame_T **altfr) FUNC_ATTR_NONNULL_ARG(1, 2) { assert(tp == NULL || tp != curtab); @@ -3100,13 +3203,10 @@ win_T *winframe_remove(win_T *win, int *dirp, tabpage_T *tp) frame_T *frp_close = win->w_frame; - // Remove the window from its frame. + // Find the window and frame that gets the space. frame_T *frp2 = win_altframe(win, tp); win_T *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 @@ -3133,8 +3233,6 @@ win_T *winframe_remove(win_T *win, int *dirp, tabpage_T *tp) } } } - frame_new_height(frp2, frp2->fr_height + frp_close->fr_height, - frp2 == frp_close->fr_next, false); *dirp = 'v'; } else { // When 'winfixwidth' is set, try to find another frame in the column @@ -3162,70 +3260,123 @@ win_T *winframe_remove(win_T *win, int *dirp, tabpage_T *tp) } } } - frame_new_width(frp2, frp2->fr_width + frp_close->fr_width, - frp2 == frp_close->fr_next, 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; + assert(wp != win && frp2 != frp_close); + if (altfr != NULL) { + *altfr = frp2; + } + + return wp; +} - frame_comp_pos(frp2, &row, &col); +/// Flatten "frp" into its parent frame if it's the only child, also merging its +/// list with the grandparent if they share the same layout. +/// Frees "frp" if flattened; also "frp->fr_parent" if it has the same layout. +static void frame_flatten(frame_T *frp) + FUNC_ATTR_NONNULL_ALL +{ + if (frp->fr_next != NULL || frp->fr_prev != NULL) { + return; } - 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; - frame_T *frp; - 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; + // There is no other frame in this list, move its info to the parent + // and remove it. + frp->fr_parent->fr_layout = frp->fr_layout; + frp->fr_parent->fr_child = frp->fr_child; + frame_T *frp2; + FOR_ALL_FRAMES(frp2, frp->fr_child) { + frp2->fr_parent = frp->fr_parent; + } + frp->fr_parent->fr_win = frp->fr_win; + if (frp->fr_win != NULL) { + frp->fr_win->w_frame = frp->fr_parent; + } + frp2 = frp->fr_parent; + if (topframe->fr_child == frp) { + topframe->fr_child = frp2; + } + xfree(frp); + + frp = frp2->fr_parent; + if (frp != NULL && frp->fr_layout == frp2->fr_layout) { + // The frame above the parent has the same layout, have to merge + // the frames into this list. + if (frp->fr_child == frp2) { + frp->fr_child = frp2->fr_child; + } + assert(frp2->fr_child); + frp2->fr_child->fr_prev = frp2->fr_prev; + if (frp2->fr_prev != NULL) { + frp2->fr_prev->fr_next = frp2->fr_child; + } + for (frame_T *frp3 = frp2->fr_child;; frp3 = frp3->fr_next) { + frp3->fr_parent = frp; + if (frp3->fr_next == NULL) { + frp3->fr_next = frp2->fr_next; + if (frp2->fr_next != NULL) { + frp2->fr_next->fr_prev = frp3; + } + break; + } } - 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; - } - frame_T *frp3; - 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); +/// Undo changes from a prior call to winframe_remove, also restoring lost +/// vertical separators and statuslines, and changed window positions for +/// windows within "unflat_altfr". +/// Caller must ensure no other changes were made to the layout or window sizes! +void winframe_restore(win_T *wp, int dir, frame_T *unflat_altfr) + FUNC_ATTR_NONNULL_ALL +{ + frame_T *frp = wp->w_frame; + + // Put "wp"'s frame back where it was. + if (frp->fr_prev != NULL) { + frame_append(frp->fr_prev, frp); + } else { + frame_insert(frp->fr_next, frp); + } + + // Vertical separators to the left may have been lost. Restore them. + if (wp->w_vsep_width == 0 && frp->fr_parent->fr_layout == FR_ROW && frp->fr_prev != NULL) { + frame_add_vsep(frp->fr_prev); + } + + // Statuslines or horizontal separators above may have been lost. Restore them. + if (frp->fr_parent->fr_layout == FR_COL && frp->fr_prev != NULL) { + if (global_stl_height() == 0 && wp->w_status_height == 0) { + frame_add_statusline(frp->fr_prev); + } else if (wp->w_hsep_height == 0) { + frame_add_hsep(frp->fr_prev); } } - return wp; + // Restore the lost room that was redistributed to the altframe. Also + // adjusts window sizes to fit restored statuslines/separators, if needed. + if (dir == 'v') { + frame_new_height(unflat_altfr, unflat_altfr->fr_height - frp->fr_height, + unflat_altfr == frp->fr_next, false); + } else if (dir == 'h') { + frame_new_width(unflat_altfr, unflat_altfr->fr_width - frp->fr_width, + unflat_altfr == frp->fr_next, false); + } + + // Recompute window positions within the parent frame to restore them. + // Positions were unchanged if the altframe was adjacent and left/above. + if (unflat_altfr != frp->fr_prev) { + const win_T *const topleft = frame2win(frp->fr_parent); + int row = topleft->w_winrow; + int col = topleft->w_wincol; + + frame_comp_pos(frp->fr_parent, &row, &col); + } } /// If 'splitbelow' or 'splitright' is set, the space goes above or to the left @@ -3791,7 +3942,7 @@ void close_others(int message, int forceit) return; } - if (one_nonfloat() && !lastwin->w_floating) { + if (one_window(firstwin) && !lastwin->w_floating) { if (message && !autocmd_busy) { msg(_(m_onlyone), 0); @@ -4330,7 +4481,7 @@ static void tabpage_check_windows(tabpage_T *old_curtab) if (wp->w_floating) { if (wp->w_config.external) { win_remove(wp, old_curtab); - win_append(lastwin_nofloating(), wp); + win_append(lastwin_nofloating(), wp, NULL); } else { ui_comp_remove_grid(&wp->w_grid_alloc); } @@ -4766,19 +4917,15 @@ static void win_enter_ext(win_T *const wp, const int flags) 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; - } else if (wp == prevwin) { - prevwin = NULL; // don't want it to be the new curwin } - curwin = wp; curbuf = wp->w_buffer; - check_cursor(); - if (!virtual_active()) { + check_cursor(curwin); + if (!virtual_active(curwin)) { curwin->w_cursor.coladd = 0; } if (*p_spk == 'c') { @@ -4970,7 +5117,7 @@ win_T *win_alloc(win_T *after, bool hidden) block_autocmds(); // link the window in the window list if (!hidden) { - win_append(after, new_wp); + win_append(after, new_wp, NULL); } new_wp->w_wincol = 0; @@ -5140,21 +5287,29 @@ void win_free_grid(win_T *wp, bool reinit) } } -// Append window "wp" in the window list after window "after". -void win_append(win_T *after, win_T *wp) +/// Append window "wp" in the window list after window "after". +/// +/// @param tp tab page "win" (and "after", if not NULL) is in, NULL for current +void win_append(win_T *after, win_T *wp, tabpage_T *tp) + FUNC_ATTR_NONNULL_ARG(2) { + assert(tp == NULL || tp != curtab); + + win_T **first = tp == NULL ? &firstwin : &tp->tp_firstwin; + win_T **last = tp == NULL ? &lastwin : &tp->tp_lastwin; + // after NULL is in front of the first - win_T *before = after == NULL ? firstwin : after->w_next; + win_T *before = after == NULL ? *first : after->w_next; wp->w_next = before; wp->w_prev = after; if (after == NULL) { - firstwin = wp; + *first = wp; } else { after->w_next = wp; } if (before == NULL) { - lastwin = wp; + *last = wp; } else { before->w_prev = wp; } @@ -6486,7 +6641,7 @@ void scroll_to_fraction(win_T *wp, int prev_height) } } else if (sline > 0) { while (sline > 0 && lnum > 1) { - hasFoldingWin(wp, lnum, &lnum, NULL, true, NULL); + hasFolding(wp, lnum, &lnum, NULL); if (lnum == 1) { // first line in buffer is folded line_size = 1; @@ -6506,7 +6661,7 @@ void scroll_to_fraction(win_T *wp, int prev_height) if (sline < 0) { // Line we want at top would go off top of screen. Use next // line instead. - hasFoldingWin(wp, lnum, NULL, &lnum, true, NULL); + hasFolding(wp, lnum, NULL, &lnum); lnum++; wp->w_wrow -= line_size + sline; } else if (sline > 0) { @@ -6547,7 +6702,7 @@ void win_set_inner_size(win_T *wp, bool valid_cursor) if (wp == curwin && *p_spk == 'c') { // w_wrow needs to be valid. When setting 'laststatus' this may // call win_new_height() recursively. - validate_cursor(); + validate_cursor(curwin); } if (wp->w_height_inner != prev_height) { return; // Recursive call already changed the size, bail out. @@ -7057,7 +7212,7 @@ int global_stl_height(void) /// @param morewin pretend there are two or more windows if true. int last_stl_height(bool morewin) { - return (p_ls > 1 || (p_ls == 1 && (morewin || !one_nonfloat()))) ? STATUS_HEIGHT : 0; + return (p_ls > 1 || (p_ls == 1 && (morewin || !one_window(firstwin)))) ? STATUS_HEIGHT : 0; } /// Return the minimal number of rows that is needed on the screen to display |