Adding upstream version 3.3a.upstream/3.3a

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 1340 insertions, 0 deletions

diff --git a/window-tree.c b/window-tree.c
new file mode 100644
index 0000000..d90bf81
--- /dev/null
+++ b/window-tree.c
@@ -0,0 +1,1340 @@
+/* $OpenBSD$ */
+
+/*
+ * 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 <ctype.h>
+#include <stdlib.h>
+#include <string.h>
+
+#include "tmux.h"
+
+static struct screen	*window_tree_init(struct window_mode_entry *,
+			     struct cmd_find_state *, struct args *);
+static void		 window_tree_free(struct window_mode_entry *);
+static void		 window_tree_resize(struct window_mode_entry *, u_int,
+			     u_int);
+static void		 window_tree_update(struct window_mode_entry *);
+static void		 window_tree_key(struct window_mode_entry *,
+			     struct client *, struct session *,
+			     struct winlink *, key_code, struct mouse_event *);
+
+#define WINDOW_TREE_DEFAULT_COMMAND "switch-client -Zt '%%'"
+
+#define WINDOW_TREE_DEFAULT_FORMAT \
+	"#{?pane_format," \
+		"#{?pane_marked,#[reverse],}" \
+		"#{pane_current_command}#{?pane_active,*,}#{?pane_marked,M,}" \
+		"#{?#{&&:#{pane_title},#{!=:#{pane_title},#{host_short}}},: \"#{pane_title}\",}" \
+	"," \
+		"#{?window_format," \
+			"#{?window_marked_flag,#[reverse],}" \
+			"#{window_name}#{window_flags}" \
+			"#{?#{&&:#{==:#{window_panes},1},#{&&:#{pane_title},#{!=:#{pane_title},#{host_short}}}},: \"#{pane_title}\",}" \
+		"," \
+			"#{session_windows} windows" \
+			"#{?session_grouped, " \
+				"(group #{session_group}: " \
+				"#{session_group_list})," \
+			"}" \
+			"#{?session_attached, (attached),}" \
+		"}" \
+	"}"
+
+#define WINDOW_TREE_DEFAULT_KEY_FORMAT \
+	"#{?#{e|<:#{line},10}," \
+		"#{line}" \
+	"," \
+		"#{?#{e|<:#{line},36},"	\
+	        	"M-#{a:#{e|+:97,#{e|-:#{line},10}}}" \
+		"," \
+	        	"" \
+		"}" \
+	"}"
+
+static const struct menu_item window_tree_menu_items[] = {
+	{ "Select", '\r', NULL },
+	{ "Expand", KEYC_RIGHT, NULL },
+	{ "Mark", 'm', NULL },
+	{ "", KEYC_NONE, NULL },
+	{ "Tag", 't', NULL },
+	{ "Tag All", '\024', NULL },
+	{ "Tag None", 'T', NULL },
+	{ "", KEYC_NONE, NULL },
+	{ "Kill", 'x', NULL },
+	{ "Kill Tagged", 'X', NULL },
+	{ "", KEYC_NONE, NULL },
+	{ "Cancel", 'q', NULL },
+
+	{ NULL, KEYC_NONE, NULL }
+};
+
+const struct window_mode window_tree_mode = {
+	.name = "tree-mode",
+	.default_format = WINDOW_TREE_DEFAULT_FORMAT,
+
+	.init = window_tree_init,
+	.free = window_tree_free,
+	.resize = window_tree_resize,
+	.update = window_tree_update,
+	.key = window_tree_key,
+};
+
+enum window_tree_sort_type {
+	WINDOW_TREE_BY_INDEX,
+	WINDOW_TREE_BY_NAME,
+	WINDOW_TREE_BY_TIME,
+};
+static const char *window_tree_sort_list[] = {
+	"index",
+	"name",
+	"time"
+};
+static struct mode_tree_sort_criteria *window_tree_sort;
+
+enum window_tree_type {
+	WINDOW_TREE_NONE,
+	WINDOW_TREE_SESSION,
+	WINDOW_TREE_WINDOW,
+	WINDOW_TREE_PANE,
+};
+
+struct window_tree_itemdata {
+	enum window_tree_type	type;
+	int			session;
+	int			winlink;
+	int			pane;
+};
+
+struct window_tree_modedata {
+	struct window_pane		 *wp;
+	int				  dead;
+	int				  references;
+
+	struct mode_tree_data		 *data;
+	char				 *format;
+	char				 *key_format;
+	char				 *command;
+	int				  squash_groups;
+
+	struct window_tree_itemdata	**item_list;
+	u_int				  item_size;
+
+	const char			 *entered;
+
+	struct cmd_find_state		  fs;
+	enum window_tree_type		  type;
+
+	int				  offset;
+
+	int				  left;
+	int				  right;
+	u_int				  start;
+	u_int				  end;
+	u_int				  each;
+};
+
+static void
+window_tree_pull_item(struct window_tree_itemdata *item, struct session **sp,
+    struct winlink **wlp, struct window_pane **wp)
+{
+	*wp = NULL;
+	*wlp = NULL;
+	*sp = session_find_by_id(item->session);
+	if (*sp == NULL)
+		return;
+	if (item->type == WINDOW_TREE_SESSION) {
+		*wlp = (*sp)->curw;
+		*wp = (*wlp)->window->active;
+		return;
+	}
+
+	*wlp = winlink_find_by_index(&(*sp)->windows, item->winlink);
+	if (*wlp == NULL) {
+		*sp = NULL;
+		return;
+	}
+	if (item->type == WINDOW_TREE_WINDOW) {
+		*wp = (*wlp)->window->active;
+		return;
+	}
+
+	*wp = window_pane_find_by_id(item->pane);
+	if (!window_has_pane((*wlp)->window, *wp))
+		*wp = NULL;
+	if (*wp == NULL) {
+		*sp = NULL;
+		*wlp = NULL;
+		return;
+	}
+}
+
+static struct window_tree_itemdata *
+window_tree_add_item(struct window_tree_modedata *data)
+{
+	struct window_tree_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_tree_free_item(struct window_tree_itemdata *item)
+{
+	free(item);
+}
+
+static int
+window_tree_cmp_session(const void *a0, const void *b0)
+{
+	const struct session *const	*a = a0;
+	const struct session *const	*b = b0;
+	const struct session		*sa = *a;
+	const struct session		*sb = *b;
+	int				 result = 0;
+
+	switch (window_tree_sort->field) {
+	case WINDOW_TREE_BY_INDEX:
+		result = sa->id - sb->id;
+		break;
+	case WINDOW_TREE_BY_TIME:
+		if (timercmp(&sa->activity_time, &sb->activity_time, >)) {
+			result = -1;
+			break;
+		}
+		if (timercmp(&sa->activity_time, &sb->activity_time, <)) {
+			result = 1;
+			break;
+		}
+		/* FALLTHROUGH */
+	case WINDOW_TREE_BY_NAME:
+		result = strcmp(sa->name, sb->name);
+		break;
+	}
+
+	if (window_tree_sort->reversed)
+		result = -result;
+	return (result);
+}
+
+static int
+window_tree_cmp_window(const void *a0, const void *b0)
+{
+	const struct winlink *const	*a = a0;
+	const struct winlink *const	*b = b0;
+	const struct winlink		*wla = *a;
+	const struct winlink		*wlb = *b;
+	struct window			*wa = wla->window;
+	struct window			*wb = wlb->window;
+	int				 result = 0;
+
+	switch (window_tree_sort->field) {
+	case WINDOW_TREE_BY_INDEX:
+		result = wla->idx - wlb->idx;
+		break;
+	case WINDOW_TREE_BY_TIME:
+		if (timercmp(&wa->activity_time, &wb->activity_time, >)) {
+			result = -1;
+			break;
+		}
+		if (timercmp(&wa->activity_time, &wb->activity_time, <)) {
+			result = 1;
+			break;
+		}
+		/* FALLTHROUGH */
+	case WINDOW_TREE_BY_NAME:
+		result = strcmp(wa->name, wb->name);
+		break;
+	}
+
+	if (window_tree_sort->reversed)
+		result = -result;
+	return (result);
+}
+
+static int
+window_tree_cmp_pane(const void *a0, const void *b0)
+{
+	const struct window_pane *const	*a = a0;
+	const struct window_pane *const	*b = b0;
+	int				 result;
+
+	if (window_tree_sort->field == WINDOW_TREE_BY_TIME)
+		result = (*a)->active_point - (*b)->active_point;
+	else {
+		/*
+		 * Panes don't have names, so use number order for any other
+		 * sort field.
+		 */
+		result = (*a)->id - (*b)->id;
+	}
+	if (window_tree_sort->reversed)
+		result = -result;
+	return (result);
+}
+
+static void
+window_tree_build_pane(struct session *s, struct winlink *wl,
+    struct window_pane *wp, void *modedata, struct mode_tree_item *parent)
+{
+	struct window_tree_modedata	*data = modedata;
+	struct window_tree_itemdata	*item;
+	char				*name, *text;
+	u_int				 idx;
+
+	window_pane_index(wp, &idx);
+
+	item = window_tree_add_item(data);
+	item->type = WINDOW_TREE_PANE;
+	item->session = s->id;
+	item->winlink = wl->idx;
+	item->pane = wp->id;
+
+	text = format_single(NULL, data->format, NULL, s, wl, wp);
+	xasprintf(&name, "%u", idx);
+
+	mode_tree_add(data->data, parent, item, (uint64_t)wp, name, text, -1);
+	free(text);
+	free(name);
+}
+
+static int
+window_tree_filter_pane(struct session *s, struct winlink *wl,
+    struct window_pane *wp, const char *filter)
+{
+	char	*cp;
+	int	 result;
+
+	if (filter == NULL)
+		return (1);
+
+	cp = format_single(NULL, filter, NULL, s, wl, wp);
+	result = format_true(cp);
+	free(cp);
+
+	return (result);
+}
+
+static int
+window_tree_build_window(struct session *s, struct winlink *wl,
+    void *modedata, struct mode_tree_sort_criteria *sort_crit,
+    struct mode_tree_item *parent, const char *filter)
+{
+	struct window_tree_modedata	*data = modedata;
+	struct window_tree_itemdata	*item;
+	struct mode_tree_item		*mti;
+	char				*name, *text;
+	struct window_pane		*wp, **l;
+	u_int				 n, i;
+	int				 expanded;
+
+	item = window_tree_add_item(data);
+	item->type = WINDOW_TREE_WINDOW;
+	item->session = s->id;
+	item->winlink = wl->idx;
+	item->pane = -1;
+
+	text = format_single(NULL, data->format, NULL, s, wl, NULL);
+	xasprintf(&name, "%u", wl->idx);
+
+	if (data->type == WINDOW_TREE_SESSION ||
+	    data->type == WINDOW_TREE_WINDOW)
+		expanded = 0;
+	else
+		expanded = 1;
+	mti = mode_tree_add(data->data, parent, item, (uint64_t)wl, name, text,
+	    expanded);
+	free(text);
+	free(name);
+
+	if ((wp = TAILQ_FIRST(&wl->window->panes)) == NULL)
+		goto empty;
+	if (TAILQ_NEXT(wp, entry) == NULL) {
+		if (!window_tree_filter_pane(s, wl, wp, filter))
+			goto empty;
+		return (1);
+	}
+
+	l = NULL;
+	n = 0;
+
+	TAILQ_FOREACH(wp, &wl->window->panes, entry) {
+		if (!window_tree_filter_pane(s, wl, wp, filter))
+			continue;
+		l = xreallocarray(l, n + 1, sizeof *l);
+		l[n++] = wp;
+	}
+	if (n == 0)
+		goto empty;
+
+	window_tree_sort = sort_crit;
+	qsort(l, n, sizeof *l, window_tree_cmp_pane);
+
+	for (i = 0; i < n; i++)
+		window_tree_build_pane(s, wl, l[i], modedata, mti);
+	free(l);
+	return (1);
+
+empty:
+	window_tree_free_item(item);
+	data->item_size--;
+	mode_tree_remove(data->data, mti);
+	return (0);
+}
+
+static void
+window_tree_build_session(struct session *s, void *modedata,
+    struct mode_tree_sort_criteria *sort_crit, const char *filter)
+{
+	struct window_tree_modedata	*data = modedata;
+	struct window_tree_itemdata	*item;
+	struct mode_tree_item		*mti;
+	char				*text;
+	struct winlink			*wl, **l;
+	u_int				 n, i, empty;
+	int				 expanded;
+
+	item = window_tree_add_item(data);
+	item->type = WINDOW_TREE_SESSION;
+	item->session = s->id;
+	item->winlink = -1;
+	item->pane = -1;
+
+	text = format_single(NULL, data->format, NULL, s, NULL, NULL);
+
+	if (data->type == WINDOW_TREE_SESSION)
+		expanded = 0;
+	else
+		expanded = 1;
+	mti = mode_tree_add(data->data, NULL, item, (uint64_t)s, s->name, text,
+	    expanded);
+	free(text);
+
+	l = NULL;
+	n = 0;
+	RB_FOREACH(wl, winlinks, &s->windows) {
+		l = xreallocarray(l, n + 1, sizeof *l);
+		l[n++] = wl;
+	}
+	window_tree_sort = sort_crit;
+	qsort(l, n, sizeof *l, window_tree_cmp_window);
+
+	empty = 0;
+	for (i = 0; i < n; i++) {
+		if (!window_tree_build_window(s, l[i], modedata, sort_crit, mti,
+		    filter))
+			empty++;
+	}
+	if (empty == n) {
+		window_tree_free_item(item);
+		data->item_size--;
+		mode_tree_remove(data->data, mti);
+	}
+	free(l);
+}
+
+static void
+window_tree_build(void *modedata, struct mode_tree_sort_criteria *sort_crit,
+    uint64_t *tag, const char *filter)
+{
+	struct window_tree_modedata	*data = modedata;
+	struct session			*s, **l;
+	struct session_group		*sg, *current;
+	u_int				 n, i;
+
+	current = session_group_contains(data->fs.s);
+
+	for (i = 0; i < data->item_size; i++)
+		window_tree_free_item(data->item_list[i]);
+	free(data->item_list);
+	data->item_list = NULL;
+	data->item_size = 0;
+
+	l = NULL;
+	n = 0;
+	RB_FOREACH(s, sessions, &sessions) {
+		if (data->squash_groups &&
+		    (sg = session_group_contains(s)) != NULL) {
+			if ((sg == current && s != data->fs.s) ||
+			    (sg != current && s != TAILQ_FIRST(&sg->sessions)))
+				continue;
+		}
+		l = xreallocarray(l, n + 1, sizeof *l);
+		l[n++] = s;
+	}
+	window_tree_sort = sort_crit;
+	qsort(l, n, sizeof *l, window_tree_cmp_session);
+
+	for (i = 0; i < n; i++)
+		window_tree_build_session(l[i], modedata, sort_crit, filter);
+	free(l);
+
+	switch (data->type) {
+	case WINDOW_TREE_NONE:
+		break;
+	case WINDOW_TREE_SESSION:
+		*tag = (uint64_t)data->fs.s;
+		break;
+	case WINDOW_TREE_WINDOW:
+		*tag = (uint64_t)data->fs.wl;
+		break;
+	case WINDOW_TREE_PANE:
+		if (window_count_panes(data->fs.wl->window) == 1)
+			*tag = (uint64_t)data->fs.wl;
+		else
+			*tag = (uint64_t)data->fs.wp;
+		break;
+	}
+}
+
+static void
+window_tree_draw_label(struct screen_write_ctx *ctx, u_int px, u_int py,
+    u_int sx, u_int sy, const struct grid_cell *gc, const char *label)
+{
+	size_t	 len;
+	u_int	 ox, oy;
+
+	len = strlen(label);
+	if (sx == 0 || sy == 1 || len > sx)
+		return;
+	ox = (sx - len + 1) / 2;
+	oy = (sy + 1) / 2;
+
+	if (ox > 1 && ox + len < sx - 1 && sy >= 3) {
+		screen_write_cursormove(ctx, px + ox - 1, py + oy - 1, 0);
+		screen_write_box(ctx, len + 2, 3, BOX_LINES_DEFAULT, NULL,
+		    NULL);
+	}
+	screen_write_cursormove(ctx, px + ox, py + oy, 0);
+	screen_write_puts(ctx, gc, "%s", label);
+}
+
+static void
+window_tree_draw_session(struct window_tree_modedata *data, struct session *s,
+    struct screen_write_ctx *ctx, u_int sx, u_int sy)
+{
+	struct options		*oo = s->options;
+	struct winlink		*wl;
+	struct window		*w;
+	u_int			 cx = ctx->s->cx, cy = ctx->s->cy;
+	u_int			 loop, total, visible, each, width, offset;
+	u_int			 current, start, end, remaining, i;
+	struct grid_cell	 gc;
+	int			 colour, active_colour, left, right;
+	char			*label;
+
+	total = winlink_count(&s->windows);
+
+	memcpy(&gc, &grid_default_cell, sizeof gc);
+	colour = options_get_number(oo, "display-panes-colour");
+	active_colour = options_get_number(oo, "display-panes-active-colour");
+
+	if (sx / total < 24) {
+		visible = sx / 24;
+		if (visible == 0)
+			visible = 1;
+	} else
+		visible = total;
+
+	current = 0;
+	RB_FOREACH(wl, winlinks, &s->windows) {
+		if (wl == s->curw)
+			break;
+		current++;
+	}
+
+	if (current < visible) {
+		start = 0;
+		end = visible;
+	} else if (current >= total - visible) {
+		start = total - visible;
+		end = total;
+	} else {
+		start = current - (visible / 2);
+		end = start + visible;
+	}
+
+	if (data->offset < -(int)start)
+		data->offset = -(int)start;
+	if (data->offset > (int)(total - end))
+		data->offset = (int)(total - end);
+	start += data->offset;
+	end += data->offset;
+
+	left = (start != 0);
+	right = (end != total);
+	if (((left && right) && sx <= 6) || ((left || right) && sx <= 3))
+		left = right = 0;
+	if (left && right) {
+		each = (sx - 6) / visible;
+		remaining = (sx - 6) - (visible * each);
+	} else if (left || right) {
+		each = (sx - 3) / visible;
+		remaining = (sx - 3) - (visible * each);
+	} else {
+		each = sx / visible;
+		remaining = sx - (visible * each);
+	}
+	if (each == 0)
+		return;
+
+	if (left) {
+		data->left = cx + 2;
+		screen_write_cursormove(ctx, cx + 2, cy, 0);
+		screen_write_vline(ctx, sy, 0, 0);
+		screen_write_cursormove(ctx, cx, cy + sy / 2, 0);
+		screen_write_puts(ctx, &grid_default_cell, "<");
+	} else
+		data->left = -1;
+	if (right) {
+		data->right = cx + sx - 3;
+		screen_write_cursormove(ctx, cx + sx - 3, cy, 0);
+		screen_write_vline(ctx, sy, 0, 0);
+		screen_write_cursormove(ctx, cx + sx - 1, cy + sy / 2, 0);
+		screen_write_puts(ctx, &grid_default_cell, ">");
+	} else
+		data->right = -1;
+
+	data->start = start;
+	data->end = end;
+	data->each = each;
+
+	i = loop = 0;
+	RB_FOREACH(wl, winlinks, &s->windows) {
+		if (loop == end)
+			break;
+		if (loop < start) {
+			loop++;
+			continue;
+		}
+		w = wl->window;
+
+		if (wl == s->curw)
+			gc.fg = active_colour;
+		else
+			gc.fg = colour;
+
+		if (left)
+			offset = 3 + (i * each);
+		else
+			offset = (i * each);
+		if (loop == end - 1)
+			width = each + remaining;
+		else
+			width = each - 1;
+
+		screen_write_cursormove(ctx, cx + offset, cy, 0);
+		screen_write_preview(ctx, &w->active->base, width, sy);
+
+		xasprintf(&label, " %u:%s ", wl->idx, w->name);
+		if (strlen(label) > width)
+			xasprintf(&label, " %u ", wl->idx);
+		window_tree_draw_label(ctx, cx + offset, cy, width, sy, &gc,
+		    label);
+		free(label);
+
+		if (loop != end - 1) {
+			screen_write_cursormove(ctx, cx + offset + width, cy, 0);
+			screen_write_vline(ctx, sy, 0, 0);
+		}
+		loop++;
+
+		i++;
+	}
+}
+
+static void
+window_tree_draw_window(struct window_tree_modedata *data, struct session *s,
+    struct window *w, struct screen_write_ctx *ctx, u_int sx, u_int sy)
+{
+	struct options		*oo = s->options;
+	struct window_pane	*wp;
+	u_int			 cx = ctx->s->cx, cy = ctx->s->cy;
+	u_int			 loop, total, visible, each, width, offset;
+	u_int			 current, start, end, remaining, i;
+	struct grid_cell	 gc;
+	int			 colour, active_colour, left, right, pane_idx;
+	char			*label;
+
+	total = window_count_panes(w);
+
+	memcpy(&gc, &grid_default_cell, sizeof gc);
+	colour = options_get_number(oo, "display-panes-colour");
+	active_colour = options_get_number(oo, "display-panes-active-colour");
+
+	if (sx / total < 24) {
+		visible = sx / 24;
+		if (visible == 0)
+			visible = 1;
+	} else
+		visible = total;
+
+	current = 0;
+	TAILQ_FOREACH(wp, &w->panes, entry) {
+		if (wp == w->active)
+			break;
+		current++;
+	}
+
+	if (current < visible) {
+		start = 0;
+		end = visible;
+	} else if (current >= total - visible) {
+		start = total - visible;
+		end = total;
+	} else {
+		start = current - (visible / 2);
+		end = start + visible;
+	}
+
+	if (data->offset < -(int)start)
+		data->offset = -(int)start;
+	if (data->offset > (int)(total - end))
+		data->offset = (int)(total - end);
+	start += data->offset;
+	end += data->offset;
+
+	left = (start != 0);
+	right = (end != total);
+	if (((left && right) && sx <= 6) || ((left || right) && sx <= 3))
+		left = right = 0;
+	if (left && right) {
+		each = (sx - 6) / visible;
+		remaining = (sx - 6) - (visible * each);
+	} else if (left || right) {
+		each = (sx - 3) / visible;
+		remaining = (sx - 3) - (visible * each);
+	} else {
+		each = sx / visible;
+		remaining = sx - (visible * each);
+	}
+	if (each == 0)
+		return;
+
+	if (left) {
+		data->left = cx + 2;
+		screen_write_cursormove(ctx, cx + 2, cy, 0);
+		screen_write_vline(ctx, sy, 0, 0);
+		screen_write_cursormove(ctx, cx, cy + sy / 2, 0);
+		screen_write_puts(ctx, &grid_default_cell, "<");
+	} else
+		data->left = -1;
+	if (right) {
+		data->right = cx + sx - 3;
+		screen_write_cursormove(ctx, cx + sx - 3, cy, 0);
+		screen_write_vline(ctx, sy, 0, 0);
+		screen_write_cursormove(ctx, cx + sx - 1, cy + sy / 2, 0);
+		screen_write_puts(ctx, &grid_default_cell, ">");
+	} else
+		data->right = -1;
+
+	data->start = start;
+	data->end = end;
+	data->each = each;
+
+	i = loop = 0;
+	TAILQ_FOREACH(wp, &w->panes, entry) {
+		if (loop == end)
+			break;
+		if (loop < start) {
+			loop++;
+			continue;
+		}
+
+		if (wp == w->active)
+			gc.fg = active_colour;
+		else
+			gc.fg = colour;
+
+		if (left)
+			offset = 3 + (i * each);
+		else
+			offset = (i * each);
+		if (loop == end - 1)
+			width = each + remaining;
+		else
+			width = each - 1;
+
+		screen_write_cursormove(ctx, cx + offset, cy, 0);
+		screen_write_preview(ctx, &wp->base, width, sy);
+
+		if (window_pane_index(wp, &pane_idx) != 0)
+			pane_idx = loop;
+		xasprintf(&label, " %u ", pane_idx);
+		window_tree_draw_label(ctx, cx + offset, cy, each, sy, &gc,
+		    label);
+		free(label);
+
+		if (loop != end - 1) {
+			screen_write_cursormove(ctx, cx + offset + width, cy, 0);
+			screen_write_vline(ctx, sy, 0, 0);
+		}
+		loop++;
+
+		i++;
+	}
+}
+
+static void
+window_tree_draw(void *modedata, void *itemdata, struct screen_write_ctx *ctx,
+    u_int sx, u_int sy)
+{
+	struct window_tree_itemdata	*item = itemdata;
+	struct session			*sp;
+	struct winlink			*wlp;
+	struct window_pane		*wp;
+
+	window_tree_pull_item(item, &sp, &wlp, &wp);
+	if (wp == NULL)
+		return;
+
+	switch (item->type) {
+	case WINDOW_TREE_NONE:
+		break;
+	case WINDOW_TREE_SESSION:
+		window_tree_draw_session(modedata, sp, ctx, sx, sy);
+		break;
+	case WINDOW_TREE_WINDOW:
+		window_tree_draw_window(modedata, sp, wlp->window, ctx, sx, sy);
+		break;
+	case WINDOW_TREE_PANE:
+		screen_write_preview(ctx, &wp->base, sx, sy);
+		break;
+	}
+}
+
+static int
+window_tree_search(__unused void *modedata, void *itemdata, const char *ss)
+{
+	struct window_tree_itemdata	*item = itemdata;
+	struct session			*s;
+	struct winlink			*wl;
+	struct window_pane		*wp;
+	char				*cmd;
+	int				 retval;
+
+	window_tree_pull_item(item, &s, &wl, &wp);
+
+	switch (item->type) {
+	case WINDOW_TREE_NONE:
+		return (0);
+	case WINDOW_TREE_SESSION:
+		if (s == NULL)
+			return (0);
+		return (strstr(s->name, ss) != NULL);
+	case WINDOW_TREE_WINDOW:
+		if (s == NULL || wl == NULL)
+			return (0);
+		return (strstr(wl->window->name, ss) != NULL);
+	case WINDOW_TREE_PANE:
+		if (s == NULL || wl == NULL || wp == NULL)
+			break;
+		cmd = osdep_get_name(wp->fd, wp->tty);
+		if (cmd == NULL || *cmd == '\0')
+			return (0);
+		retval = (strstr(cmd, ss) != NULL);
+		free(cmd);
+		return (retval);
+	}
+	return (0);
+}
+
+static void
+window_tree_menu(void *modedata, struct client *c, key_code key)
+{
+	struct window_tree_modedata	*data = modedata;
+	struct window_pane		*wp = data->wp;
+	struct window_mode_entry	*wme;
+
+	wme = TAILQ_FIRST(&wp->modes);
+	if (wme == NULL || wme->data != modedata)
+		return;
+	window_tree_key(wme, c, NULL, NULL, key, NULL);
+}
+
+static key_code
+window_tree_get_key(void *modedata, void *itemdata, u_int line)
+{
+	struct window_tree_modedata	*data = modedata;
+	struct window_tree_itemdata	*item = itemdata;
+	struct format_tree		*ft;
+	struct session			*s;
+	struct winlink			*wl;
+	struct window_pane		*wp;
+	char				*expanded;
+	key_code			 key;
+
+	ft = format_create(NULL, NULL, FORMAT_NONE, 0);
+	window_tree_pull_item(item, &s, &wl, &wp);
+	if (item->type == WINDOW_TREE_SESSION)
+		format_defaults(ft, NULL, s, NULL, NULL);
+	else if (item->type == WINDOW_TREE_WINDOW)
+		format_defaults(ft, NULL, s, wl, NULL);
+	else
+		format_defaults(ft, NULL, s, wl, wp);
+	format_add(ft, "line", "%u", line);
+
+	expanded = format_expand(ft, data->key_format);
+	key = key_string_lookup_string(expanded);
+	free(expanded);
+	format_free(ft);
+	return (key);
+}
+
+static struct screen *
+window_tree_init(struct window_mode_entry *wme, struct cmd_find_state *fs,
+    struct args *args)
+{
+	struct window_pane		*wp = wme->wp;
+	struct window_tree_modedata	*data;
+	struct screen			*s;
+
+	wme->data = data = xcalloc(1, sizeof *data);
+	data->wp = wp;
+	data->references = 1;
+
+	if (args_has(args, 's'))
+		data->type = WINDOW_TREE_SESSION;
+	else if (args_has(args, 'w'))
+		data->type = WINDOW_TREE_WINDOW;
+	else
+		data->type = WINDOW_TREE_PANE;
+	memcpy(&data->fs, fs, sizeof data->fs);
+
+	if (args == NULL || !args_has(args, 'F'))
+		data->format = xstrdup(WINDOW_TREE_DEFAULT_FORMAT);
+	else
+		data->format = xstrdup(args_get(args, 'F'));
+	if (args == NULL || !args_has(args, 'K'))
+		data->key_format = xstrdup(WINDOW_TREE_DEFAULT_KEY_FORMAT);
+	else
+		data->key_format = xstrdup(args_get(args, 'K'));
+	if (args == NULL || args_count(args) == 0)
+		data->command = xstrdup(WINDOW_TREE_DEFAULT_COMMAND);
+	else
+		data->command = xstrdup(args_string(args, 0));
+	data->squash_groups = !args_has(args, 'G');
+
+	data->data = mode_tree_start(wp, args, window_tree_build,
+	    window_tree_draw, window_tree_search, window_tree_menu, NULL,
+	    window_tree_get_key, data, window_tree_menu_items,
+	    window_tree_sort_list, nitems(window_tree_sort_list), &s);
+	mode_tree_zoom(data->data, args);
+
+	mode_tree_build(data->data);
+	mode_tree_draw(data->data);
+
+	data->type = WINDOW_TREE_NONE;
+
+	return (s);
+}
+
+static void
+window_tree_destroy(struct window_tree_modedata *data)
+{
+	u_int	i;
+
+	if (--data->references != 0)
+		return;
+
+	for (i = 0; i < data->item_size; i++)
+		window_tree_free_item(data->item_list[i]);
+	free(data->item_list);
+
+	free(data->format);
+	free(data->key_format);
+	free(data->command);
+
+	free(data);
+}
+
+static void
+window_tree_free(struct window_mode_entry *wme)
+{
+	struct window_tree_modedata *data = wme->data;
+
+	if (data == NULL)
+		return;
+
+	data->dead = 1;
+	mode_tree_free(data->data);
+	window_tree_destroy(data);
+}
+
+static void
+window_tree_resize(struct window_mode_entry *wme, u_int sx, u_int sy)
+{
+	struct window_tree_modedata	*data = wme->data;
+
+	mode_tree_resize(data->data, sx, sy);
+}
+
+static void
+window_tree_update(struct window_mode_entry *wme)
+{
+	struct window_tree_modedata	*data = wme->data;
+
+	mode_tree_build(data->data);
+	mode_tree_draw(data->data);
+	data->wp->flags |= PANE_REDRAW;
+}
+
+static char *
+window_tree_get_target(struct window_tree_itemdata *item,
+    struct cmd_find_state *fs)
+{
+	struct session		*s;
+	struct winlink		*wl;
+	struct window_pane	*wp;
+	char			*target;
+
+	window_tree_pull_item(item, &s, &wl, &wp);
+
+	target = NULL;
+	switch (item->type) {
+	case WINDOW_TREE_NONE:
+		break;
+	case WINDOW_TREE_SESSION:
+		if (s == NULL)
+			break;
+		xasprintf(&target, "=%s:", s->name);
+		break;
+	case WINDOW_TREE_WINDOW:
+		if (s == NULL || wl == NULL)
+			break;
+		xasprintf(&target, "=%s:%u.", s->name, wl->idx);
+		break;
+	case WINDOW_TREE_PANE:
+		if (s == NULL || wl == NULL || wp == NULL)
+			break;
+		xasprintf(&target, "=%s:%u.%%%u", s->name, wl->idx, wp->id);
+		break;
+	}
+	if (target == NULL)
+		cmd_find_clear_state(fs, 0);
+	else
+		cmd_find_from_winlink_pane(fs, wl, wp, 0);
+	return (target);
+}
+
+static void
+window_tree_command_each(void *modedata, void *itemdata, struct client *c,
+    __unused key_code key)
+{
+	struct window_tree_modedata	*data = modedata;
+	struct window_tree_itemdata	*item = itemdata;
+	char				*name;
+	struct cmd_find_state		 fs;
+
+	name = window_tree_get_target(item, &fs);
+	if (name != NULL)
+		mode_tree_run_command(c, &fs, data->entered, name);
+	free(name);
+}
+
+static enum cmd_retval
+window_tree_command_done(__unused struct cmdq_item *item, void *modedata)
+{
+	struct window_tree_modedata	*data = modedata;
+
+	if (!data->dead) {
+		mode_tree_build(data->data);
+		mode_tree_draw(data->data);
+		data->wp->flags |= PANE_REDRAW;
+	}
+	window_tree_destroy(data);
+	return (CMD_RETURN_NORMAL);
+}
+
+static int
+window_tree_command_callback(struct client *c, void *modedata, const char *s,
+    __unused int done)
+{
+	struct window_tree_modedata	*data = modedata;
+
+	if (s == NULL || *s == '\0' || data->dead)
+		return (0);
+
+	data->entered = s;
+	mode_tree_each_tagged(data->data, window_tree_command_each, c,
+	    KEYC_NONE, 1);
+	data->entered = NULL;
+
+	data->references++;
+	cmdq_append(c, cmdq_get_callback(window_tree_command_done, data));
+
+	return (0);
+}
+
+static void
+window_tree_command_free(void *modedata)
+{
+	struct window_tree_modedata	*data = modedata;
+
+	window_tree_destroy(data);
+}
+
+static void
+window_tree_kill_each(__unused void *modedata, void *itemdata,
+    __unused struct client *c, __unused key_code key)
+{
+	struct window_tree_itemdata	*item = itemdata;
+	struct session			*s;
+	struct winlink			*wl;
+	struct window_pane		*wp;
+
+	window_tree_pull_item(item, &s, &wl, &wp);
+
+	switch (item->type) {
+	case WINDOW_TREE_NONE:
+		break;
+	case WINDOW_TREE_SESSION:
+		if (s != NULL) {
+			server_destroy_session(s);
+			session_destroy(s, 1, __func__);
+		}
+		break;
+	case WINDOW_TREE_WINDOW:
+		if (wl != NULL)
+			server_kill_window(wl->window, 0);
+		break;
+	case WINDOW_TREE_PANE:
+		if (wp != NULL)
+			server_kill_pane(wp);
+		break;
+	}
+}
+
+static int
+window_tree_kill_current_callback(struct client *c, void *modedata,
+    const char *s, __unused int done)
+{
+	struct window_tree_modedata	*data = modedata;
+	struct mode_tree_data		*mtd = data->data;
+
+	if (s == NULL || *s == '\0' || data->dead)
+		return (0);
+	if (tolower((u_char) s[0]) != 'y' || s[1] != '\0')
+		return (0);
+
+	window_tree_kill_each(data, mode_tree_get_current(mtd), c, KEYC_NONE);
+	server_renumber_all();
+
+	data->references++;
+	cmdq_append(c, cmdq_get_callback(window_tree_command_done, data));
+
+	return (0);
+}
+
+static int
+window_tree_kill_tagged_callback(struct client *c, void *modedata,
+    const char *s, __unused int done)
+{
+	struct window_tree_modedata	*data = modedata;
+	struct mode_tree_data		*mtd = data->data;
+
+	if (s == NULL || *s == '\0' || data->dead)
+		return (0);
+	if (tolower((u_char) s[0]) != 'y' || s[1] != '\0')
+		return (0);
+
+	mode_tree_each_tagged(mtd, window_tree_kill_each, c, KEYC_NONE, 1);
+	server_renumber_all();
+
+	data->references++;
+	cmdq_append(c, cmdq_get_callback(window_tree_command_done, data));
+
+	return (0);
+}
+
+static key_code
+window_tree_mouse(struct window_tree_modedata *data, key_code key, u_int x,
+    struct window_tree_itemdata *item)
+{
+	struct session		*s;
+	struct winlink		*wl;
+	struct window_pane	*wp;
+	u_int			 loop;
+
+	if (key != KEYC_MOUSEDOWN1_PANE)
+		return (KEYC_NONE);
+
+	if (data->left != -1 && x <= (u_int)data->left)
+		return ('<');
+	if (data->right != -1 && x >= (u_int)data->right)
+		return ('>');
+
+	if (data->left != -1)
+		x -= data->left;
+	else if (x != 0)
+		x--;
+	if (x == 0 || data->end == 0)
+		x = 0;
+	else {
+		x = x / data->each;
+		if (data->start + x >= data->end)
+			x = data->end - 1;
+	}
+
+	window_tree_pull_item(item, &s, &wl, &wp);
+	if (item->type == WINDOW_TREE_SESSION) {
+		if (s == NULL)
+			return (KEYC_NONE);
+		mode_tree_expand_current(data->data);
+		loop = 0;
+		RB_FOREACH(wl, winlinks, &s->windows) {
+			if (loop == data->start + x)
+				break;
+			loop++;
+		}
+		if (wl != NULL)
+			mode_tree_set_current(data->data, (uint64_t)wl);
+		return ('\r');
+	}
+	if (item->type == WINDOW_TREE_WINDOW) {
+		if (wl == NULL)
+			return (KEYC_NONE);
+		mode_tree_expand_current(data->data);
+		loop = 0;
+		TAILQ_FOREACH(wp, &wl->window->panes, entry) {
+			if (loop == data->start + x)
+				break;
+			loop++;
+		}
+		if (wp != NULL)
+			mode_tree_set_current(data->data, (uint64_t)wp);
+		return ('\r');
+	}
+	return (KEYC_NONE);
+}
+
+static void
+window_tree_key(struct window_mode_entry *wme, struct client *c,
+    __unused struct session *s, __unused struct winlink *wl, key_code key,
+    struct mouse_event *m)
+{
+	struct window_pane		*wp = wme->wp;
+	struct window_tree_modedata	*data = wme->data;
+	struct window_tree_itemdata	*item, *new_item;
+	char				*name, *prompt = NULL;
+	struct cmd_find_state		 fs, *fsp = &data->fs;
+	int				 finished;
+	u_int				 tagged, x, y, idx;
+	struct session			*ns;
+	struct winlink			*nwl;
+	struct window_pane		*nwp;
+
+	item = mode_tree_get_current(data->data);
+	finished = mode_tree_key(data->data, c, &key, m, &x, &y);
+	if (item != (new_item = mode_tree_get_current(data->data))) {
+		item = new_item;
+		data->offset = 0;
+	}
+	if (KEYC_IS_MOUSE(key) && m != NULL)
+		key = window_tree_mouse(data, key, x, item);
+	switch (key) {
+	case '<':
+		data->offset--;
+		break;
+	case '>':
+		data->offset++;
+		break;
+	case 'H':
+		mode_tree_expand(data->data, (uint64_t)fsp->s);
+		mode_tree_expand(data->data, (uint64_t)fsp->wl);
+		if (!mode_tree_set_current(data->data, (uint64_t)wme->wp))
+			mode_tree_set_current(data->data, (uint64_t)fsp->wl);
+		break;
+	case 'm':
+		window_tree_pull_item(item, &ns, &nwl, &nwp);
+		server_set_marked(ns, nwl, nwp);
+		mode_tree_build(data->data);
+		break;
+	case 'M':
+		server_clear_marked();
+		mode_tree_build(data->data);
+		break;
+	case 'x':
+		window_tree_pull_item(item, &ns, &nwl, &nwp);
+		switch (item->type) {
+		case WINDOW_TREE_NONE:
+			break;
+		case WINDOW_TREE_SESSION:
+			if (ns == NULL)
+				break;
+			xasprintf(&prompt, "Kill session %s? ", ns->name);
+			break;
+		case WINDOW_TREE_WINDOW:
+			if (nwl == NULL)
+				break;
+			xasprintf(&prompt, "Kill window %u? ", nwl->idx);
+			break;
+		case WINDOW_TREE_PANE:
+			if (nwp == NULL || window_pane_index(nwp, &idx) != 0)
+				break;
+			xasprintf(&prompt, "Kill pane %u? ", idx);
+			break;
+		}
+		if (prompt == NULL)
+			break;
+		data->references++;
+		status_prompt_set(c, NULL, prompt, "",
+		    window_tree_kill_current_callback, window_tree_command_free,
+		    data, PROMPT_SINGLE|PROMPT_NOFORMAT, PROMPT_TYPE_COMMAND);
+		free(prompt);
+		break;
+	case 'X':
+		tagged = mode_tree_count_tagged(data->data);
+		if (tagged == 0)
+			break;
+		xasprintf(&prompt, "Kill %u tagged? ", tagged);
+		data->references++;
+		status_prompt_set(c, NULL, prompt, "",
+		    window_tree_kill_tagged_callback, window_tree_command_free,
+		    data, PROMPT_SINGLE|PROMPT_NOFORMAT, PROMPT_TYPE_COMMAND);
+		free(prompt);
+		break;
+	case ':':
+		tagged = mode_tree_count_tagged(data->data);
+		if (tagged != 0)
+			xasprintf(&prompt, "(%u tagged) ", tagged);
+		else
+			xasprintf(&prompt, "(current) ");
+		data->references++;
+		status_prompt_set(c, NULL, prompt, "",
+		    window_tree_command_callback, window_tree_command_free,
+		    data, PROMPT_NOFORMAT, PROMPT_TYPE_COMMAND);
+		free(prompt);
+		break;
+	case '\r':
+		name = window_tree_get_target(item, &fs);
+		if (name != NULL)
+			mode_tree_run_command(c, NULL, data->command, name);
+		finished = 1;
+		free(name);
+		break;
+	}
+	if (finished)
+		window_pane_reset_mode(wp);
+	else {
+		mode_tree_draw(data->data);
+		wp->flags |= PANE_REDRAW;
+	}
+}