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https://github.com/tmux/tmux.git
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Two new commands, choose-window and choose-session which work only when bound to a key and allow the window or session to be selected from a list.
This commit is contained in:
Nicholas Marriott
312
window-choose.c
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312
window-choose.c
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/* $Id: window-choose.c,v 1.1 2009-01-15 19:27:31 nicm Exp $ */
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/*
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* Copyright (c) 2009 Nicholas Marriott <nicm@users.sourceforge.net>
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*
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* Permission to use, copy, modify, and distribute this software for any
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* purpose with or without fee is hereby granted, provided that the above
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* copyright notice and this permission notice appear in all copies.
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*
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* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
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* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
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* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
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* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
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* WHATSOEVER RESULTING FROM LOSS OF MIND, USE, DATA OR PROFITS, WHETHER
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* IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING
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* OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
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*/
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#include <sys/types.h>
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#include <string.h>
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#include "tmux.h"
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struct screen *window_choose_init(struct window_pane *);
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void window_choose_free(struct window_pane *);
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void window_choose_resize(struct window_pane *, u_int, u_int);
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void window_choose_key(struct window_pane *, struct client *, int);
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void window_choose_redraw_screen(struct window_pane *);
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void window_choose_write_line(
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struct window_pane *, struct screen_write_ctx *, u_int);
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void window_choose_scroll_up(struct window_pane *);
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void window_choose_scroll_down(struct window_pane *);
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const struct window_mode window_choose_mode = {
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window_choose_init,
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window_choose_free,
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window_choose_resize,
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window_choose_key,
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NULL
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};
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struct window_choose_mode_item {
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char *name;
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int idx;
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};
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struct window_choose_mode_data {
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struct screen screen;
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ARRAY_DECL(, struct window_choose_mode_item) list;
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u_int top;
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u_int selected;
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void (*callback)(void *, int);
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void *data;
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};
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void
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window_choose_vadd(struct window_pane *wp, int idx, const char *fmt, va_list ap)
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{
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struct window_choose_mode_data *data = wp->modedata;
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struct window_choose_mode_item *item;
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ARRAY_EXPAND(&data->list, 1);
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item = &ARRAY_LAST(&data->list);
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xvasprintf(&item->name, fmt, ap);
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item->idx = idx;
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}
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void printflike3
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window_choose_add(struct window_pane *wp, int idx, const char *fmt, ...)
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{
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va_list ap;
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va_start(ap, fmt);
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window_choose_vadd(wp, idx, fmt, ap);
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va_end(ap);
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}
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void
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window_choose_ready(struct window_pane *wp,
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u_int cur, void (*callback)(void *, int), void *cdata)
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{
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struct window_choose_mode_data *data = wp->modedata;
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struct screen *s = &data->screen;
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data->selected = cur;
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if (data->selected > screen_size_y(s) - 1)
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data->top = ARRAY_LENGTH(&data->list) - screen_size_y(s);
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data->callback = callback;
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data->data = cdata;
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window_choose_redraw_screen(wp);
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}
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struct screen *
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window_choose_init(struct window_pane *wp)
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{
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struct window_choose_mode_data *data;
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struct screen *s;
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wp->modedata = data = xmalloc(sizeof *data);
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data->callback = NULL;
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ARRAY_INIT(&data->list);
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data->top = 0;
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s = &data->screen;
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screen_init(s, screen_size_x(&wp->base), screen_size_y(&wp->base), 0);
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s->mode &= ~MODE_CURSOR;
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return (s);
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}
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void
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window_choose_free(struct window_pane *wp)
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{
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struct window_choose_mode_data *data = wp->modedata;
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u_int i;
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for (i = 0; i < ARRAY_LENGTH(&data->list); i++)
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xfree(ARRAY_ITEM(&data->list, i).name);
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ARRAY_FREE(&data->list);
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screen_free(&data->screen);
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xfree(data);
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}
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void
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window_choose_resize(struct window_pane *wp, u_int sx, u_int sy)
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{
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struct window_choose_mode_data *data = wp->modedata;
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struct screen *s = &data->screen;
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data->top = 0;
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if (data->selected > sy - 1)
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data->top = data->selected - (sy - 1);
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screen_resize(s, sx, sy);
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window_choose_redraw_screen(wp);
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}
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void
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window_choose_key(struct window_pane *wp, unused struct client *c, int key)
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{
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struct window_choose_mode_data *data = wp->modedata;
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struct screen *s = &data->screen;
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struct screen_write_ctx ctx;
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int table;
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u_int items;
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items = ARRAY_LENGTH(&data->list);
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table = options_get_number(&wp->window->options, "mode-keys");
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switch (mode_key_lookup(table, key)) {
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case MODEKEY_QUIT:
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data->callback(data->data, -1);
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window_pane_reset_mode(wp);
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break;
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case MODEKEY_ENTER:
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data->callback(data->data, data->selected);
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window_pane_reset_mode(wp);
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break;
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case MODEKEY_UP:
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if (items == 0)
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break;
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if (data->selected == 0) {
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data->selected = items - 1;
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if (data->selected > screen_size_y(s) - 1)
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data->top = items - screen_size_y(s);
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window_choose_redraw_screen(wp);
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break;
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}
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data->selected--;
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if (data->selected < data->top)
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window_choose_scroll_up(wp);
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else {
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screen_write_start(&ctx, wp, NULL);
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window_choose_write_line(
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wp, &ctx, data->selected - data->top);
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window_choose_write_line(
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wp, &ctx, data->selected + 1 - data->top);
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screen_write_stop(&ctx);
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}
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break;
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case MODEKEY_DOWN:
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if (items == 0)
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break;
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if (data->selected == items - 1) {
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data->selected = 0;
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if (data->top != 0)
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data->top = 0;
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window_choose_redraw_screen(wp);
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break;
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}
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data->selected++;
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if (data->selected >= data->top + screen_size_y(&data->screen))
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window_choose_scroll_down(wp);
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else {
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screen_write_start(&ctx, wp, NULL);
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window_choose_write_line(
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wp, &ctx, data->selected - data->top);
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window_choose_write_line(
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wp, &ctx, data->selected - 1 - data->top);
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screen_write_stop(&ctx);
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}
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break;
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case MODEKEY_PPAGE:
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if (data->top < screen_size_y(s))
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data->top = 0;
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else
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data->top -= screen_size_y(s);
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window_choose_redraw_screen(wp);
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break;
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case MODEKEY_NONE:
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if (key != ' ')
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break;
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/* FALLTHROUGH */
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case MODEKEY_NPAGE:
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if (data->top + screen_size_y(s) > ARRAY_LENGTH(&data->list))
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data->top = ARRAY_LENGTH(&data->list);
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else
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data->top += screen_size_y(s);
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window_choose_redraw_screen(wp);
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break;
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}
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}
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void
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window_choose_write_line(
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struct window_pane *wp, struct screen_write_ctx *ctx, u_int py)
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{
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struct window_choose_mode_data *data = wp->modedata;
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struct window_choose_mode_item *item;
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struct screen *s = &data->screen;
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struct grid_cell gc;
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if (data->callback == NULL)
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fatalx("called before callback assigned");
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memcpy(&gc, &grid_default_cell, sizeof gc);
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if (data->selected == data->top + py) {
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gc.fg = options_get_number(&wp->window->options, "mode-fg");
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gc.bg = options_get_number(&wp->window->options, "mode-bg");
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}
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screen_write_cursormove(ctx, 0, py);
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if (data->top + py < ARRAY_LENGTH(&data->list)) {
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item = &ARRAY_ITEM(&data->list, data->top + py);
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screen_write_puts(
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ctx, &gc, "%.*s", (int) screen_size_x(s), item->name);
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}
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while (s->cx < screen_size_x(s))
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screen_write_putc(ctx, &gc, ' ');
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}
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void
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window_choose_redraw_screen(struct window_pane *wp)
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{
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struct window_choose_mode_data *data = wp->modedata;
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struct screen *s = &data->screen;
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struct screen_write_ctx ctx;
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u_int i;
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screen_write_start(&ctx, wp, NULL);
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for (i = 0; i < screen_size_y(s); i++)
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window_choose_write_line(wp, &ctx, i);
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screen_write_stop(&ctx);
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}
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void
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window_choose_scroll_up(struct window_pane *wp)
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{
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struct window_choose_mode_data *data = wp->modedata;
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struct screen_write_ctx ctx;
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if (data->top == 0)
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return;
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data->top--;
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screen_write_start(&ctx, wp, NULL);
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screen_write_cursormove(&ctx, 0, 0);
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screen_write_insertline(&ctx, 1);
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window_choose_write_line(wp, &ctx, 0);
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if (screen_size_y(&data->screen) > 1)
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window_choose_write_line(wp, &ctx, 1);
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screen_write_stop(&ctx);
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}
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void
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window_choose_scroll_down(struct window_pane *wp)
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{
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struct window_choose_mode_data *data = wp->modedata;
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struct screen *s = &data->screen;
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struct screen_write_ctx ctx;
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if (data->top >= ARRAY_LENGTH(&data->list))
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return;
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data->top++;
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screen_write_start(&ctx, wp, NULL);
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screen_write_cursormove(&ctx, 0, 0);
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screen_write_deleteline(&ctx, 1);
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window_choose_write_line(wp, &ctx, screen_size_y(s) - 1);
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if (screen_size_y(&data->screen) > 1)
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window_choose_write_line(wp, &ctx, screen_size_y(s) - 2);
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screen_write_stop(&ctx);
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}
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