path: root/window-buffer.c

/* $OpenBSD$ */

/*
 * Copyright (c) 2017 Nicholas Marriott <nicholas.marriott@gmail.com>
 *
 * Permission to use, copy, modify, and distribute this software for any
 * purpose with or without fee is hereby granted, provided that the above
 * copyright notice and this permission notice appear in all copies.
 *
 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
 * WHATSOEVER RESULTING FROM LOSS OF MIND, USE, DATA OR PROFITS, WHETHER
 * IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING
 * OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
 */

#include <sys/types.h>

#include <stdlib.h>
#include <string.h>
#include <time.h>

#include "tmux.h"

static struct screen	*window_buffer_init(struct window_mode_entry *,
			     struct cmd_find_state *, struct args *);
static void		 window_buffer_free(struct window_mode_entry *);
static void		 window_buffer_resize(struct window_mode_entry *, u_int,
			     u_int);
static void		 window_buffer_key(struct window_mode_entry *,
			     struct client *, struct session *,
			     struct winlink *, key_code, struct mouse_event *);

#define WINDOW_BUFFER_DEFAULT_COMMAND "paste-buffer -b '%%'"

#define WINDOW_BUFFER_DEFAULT_FORMAT \
	"#{buffer_size} bytes (#{t:buffer_created})"

static const struct menu_item window_buffer_menu_items[] = {
	{ "Paste", 'p', NULL },
	{ "Paste Tagged", 'P', NULL },
	{ "", KEYC_NONE, NULL },
	{ "Tag", 't', NULL },
	{ "Tag All", '\024', NULL },
	{ "Tag None", 'T', NULL },
	{ "", KEYC_NONE, NULL },
	{ "Delete", 'd', NULL },
	{ "Delete Tagged", 'D', NULL },
	{ "", KEYC_NONE, NULL },
	{ "Cancel", 'q', NULL },

	{ NULL, KEYC_NONE, NULL }
};

const struct window_mode window_buffer_mode = {
	.name = "buffer-mode",
	.default_format = WINDOW_BUFFER_DEFAULT_FORMAT,

	.init = window_buffer_init,
	.free = window_buffer_free,
	.resize = window_buffer_resize,
	.key = window_buffer_key,
};

enum window_buffer_sort_type {
	WINDOW_BUFFER_BY_TIME,
	WINDOW_BUFFER_BY_NAME,
	WINDOW_BUFFER_BY_SIZE,
};
static const char *window_buffer_sort_list[] = {
	"time",
	"name",
	"size"
};

struct window_buffer_itemdata {
	const char	*name;
	u_int		 order;
	size_t		 size;
};

struct window_buffer_modedata {
	struct window_pane		 *wp;
	struct cmd_find_state		  fs;

	struct mode_tree_data		 *data;
	char				 *command;
	char				 *format;

	struct window_buffer_itemdata	**item_list;
	u_int				  item_size;
};

static struct window_buffer_itemdata *
window_buffer_add_item(struct window_buffer_modedata *data)
{
	struct window_buffer_itemdata	*item;

	data->item_list = xreallocarray(data->item_list, data->item_size + 1,
	    sizeof *data->item_list);
	item = data->item_list[data->item_size++] = xcalloc(1, sizeof *item);
	return (item);
}

static void
window_buffer_free_item(struct window_buffer_itemdata *item)
{
	free((void *)item->name);
	free(item);
}

static int
window_buffer_cmp_name(const void *a0, const void *b0)
{
	const struct window_buffer_itemdata *const *a = a0;
	const struct window_buffer_itemdata *const *b = b0;

	return (strcmp((*a)->name, (*b)->name));
}

static int
window_buffer_cmp_time(const void *a0, const void *b0)
{
	const struct window_buffer_itemdata *const *a = a0;
	const struct window_buffer_itemdata *const *b = b0;

	if ((*a)->order > (*b)->order)
		return (-1);
	if ((*a)->order < (*b)->order)
		return (1);
	return (strcmp((*a)->name, (*b)->name));
}

static int
window_buffer_cmp_size(const void *a0, const void *b0)
{
	const struct window_buffer_itemdata *const *a = a0;
	const struct window_buffer_itemdata *const *b = b0;

	if ((*a)->size > (*b)->size)
		return (-1);
	if ((*a)->size < (*b)->size)
		return (1);
	return (strcmp((*a)->name, (*b)->name));
}

static void
window_buffer_build(void *modedata, u_int sort_type, __unused uint64_t *tag,
    const char *filter)
{
	struct window_buffer_modedata	*data = modedata;
	struct window_buffer_itemdata	*item;
	u_int				 i;
	struct paste_buffer		*pb;
	char				*text, *cp;
	struct format_tree		*ft;
	struct session			*s = NULL;
	struct winlink			*wl = NULL;
	struct window_pane		*wp = NULL;

	for (i = 0; i < data->item_size; i++)
		window_buffer_free_item(data->item_list[i]);
	free(data->item_list);
	data->item_list = NULL;
	data->item_size = 0;

	pb = NULL;
	while ((pb = paste_walk(pb)) != NULL) {
		item = window_buffer_add_item(data);
		item->name = xstrdup(paste_buffer_name(pb));
		paste_buffer_data(pb, &item->size);
		item->order = paste_buffer_order(pb);
	}

	switch (sort_type) {
	case WINDOW_BUFFER_BY_NAME:
		qsort(data->item_list, data->item_size, sizeof *data->item_list,
		    window_buffer_cmp_name);
		break;
	case WINDOW_BUFFER_BY_TIME:
		qsort(data->item_list, data->item_size, sizeof *data->item_list,
		    window_buffer_cmp_time);
		break;
	case WINDOW_BUFFER_BY_SIZE:
		qsort(data->item_list, data->item_size, sizeof *data->item_list,
		    window_buffer_cmp_size);
		break;
	}

	if (cmd_find_valid_state(&data->fs)) {
		s = data->fs.s;
		wl = data->fs.wl;
		wp = data->fs.wp;
	}

	for (i = 0; i < data->item_size; i++) {
		item = data->item_list[i];

		pb = paste_get_name(item->name);
		if (pb == NULL)
			continue;
		ft = format_create(NULL, NULL, FORMAT_NONE, 0);
		format_defaults(ft, NULL, s, wl, wp);
		format_defaults_paste_buffer(ft, pb);

		if (filter != NULL) {
			cp = format_expand(ft, filter);
			if (!format_true(cp)) {
				free(cp);
				format_free(ft);
				continue;
			}
			free(cp);
		}

		text = format_expand(ft, data->format);
		mode_tree_add(data->data, NULL, item, item->order, item->name,
		    text, -1);
		free(text);

		format_free(ft);
	}

}

static void
window_buffer_draw(__unused void *modedata, void *itemdata,
    struct screen_write_ctx *ctx, u_int sx, u_int sy)
{
	struct window_buffer_itemdata	*item = itemdata;
	struct paste_buffer		*pb;
	char				 line[1024];