From: nicm <nicm@openbsd.org>
Date: Tue, 4 Jul 2017 22:21:31 +0000 (+0000)
Subject: < and > keys to scroll preview list left and right in tree mode.
X-Git-Url: http://artulab.com/gitweb/?a=commitdiff_plain;h=05d445865895ce89d571f04616c2cb2c97018240;p=openbsd

< and > keys to scroll preview list left and right in tree mode.
---

diff --git a/usr.bin/tmux/tmux.1 b/usr.bin/tmux/tmux.1
index 2cfa33ecc7c..62ed321055e 100644
--- a/usr.bin/tmux/tmux.1
+++ b/usr.bin/tmux/tmux.1
@@ -1,4 +1,4 @@
-.\" $OpenBSD: tmux.1,v 1.565 2017/06/29 22:02:19 nicm Exp $
+.\" $OpenBSD: tmux.1,v 1.566 2017/07/04 22:21:31 nicm Exp $
 .\"
 .\" Copyright (c) 2007 Nicholas Marriott <nicholas.marriott@gmail.com>
 .\"
@@ -14,7 +14,7 @@
 .\" IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING
 .\" OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
 .\"
-.Dd $Mdocdate: June 29 2017 $
+.Dd $Mdocdate: July 4 2017 $
 .Dt TMUX 1
 .Os
 .Sh NAME
@@ -1422,6 +1422,8 @@ The following keys may be used in tree mode:
 .It Li "Enter" Ta "Choose selected item"
 .It Li "Up" Ta "Select previous item"
 .It Li "Down" Ta "Select next item"
+.It Li "<" Ta "Scroll list of previews left"
+.It Li ">" Ta "Scroll list of previews right"
 .It Li "C-s" Ta "Search by name"
 .It Li "n" Ta "Repeat last search"
 .It Li "t" Ta "Toggle if item is tagged"
diff --git a/usr.bin/tmux/window-tree.c b/usr.bin/tmux/window-tree.c
index 07f3545707e..106d9097698 100644
--- a/usr.bin/tmux/window-tree.c
+++ b/usr.bin/tmux/window-tree.c
@@ -1,4 +1,4 @@
-/* $OpenBSD: window-tree.c,v 1.10 2017/07/04 12:26:14 nicm Exp $ */
+/* $OpenBSD: window-tree.c,v 1.11 2017/07/04 22:21:31 nicm Exp $ */
 
 /*
  * Copyright (c) 2017 Nicholas Marriott <nicholas.marriott@gmail.com>
@@ -83,6 +83,8 @@ struct window_tree_modedata {
 
 	struct cmd_find_state		  fs;
 	enum window_tree_type		  type;
+
+	int				  offset;
 };
 
 static void
@@ -409,8 +411,8 @@ window_tree_build(void *modedata, u_int sort_type, uint64_t *tag,
 }
 
 static void
-window_tree_draw_session(struct session *s, struct screen_write_ctx *ctx,
-    u_int sx, u_int sy)
+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;
@@ -453,6 +455,13 @@ window_tree_draw_session(struct session *s, struct screen_write_ctx *ctx,
 		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))
@@ -530,8 +539,8 @@ window_tree_draw_session(struct session *s, struct screen_write_ctx *ctx,
 }
 
 static void
-window_tree_draw_window(struct session *s, struct window *w,
-    struct screen_write_ctx *ctx, u_int sx, u_int sy)
+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;
@@ -573,6 +582,13 @@ window_tree_draw_window(struct session *s, struct window *w,
 		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))
@@ -647,7 +663,7 @@ window_tree_draw_window(struct session *s, struct window *w,
 }
 
 static struct screen *
-window_tree_draw(__unused void *modedata, void *itemdata, u_int sx, u_int sy)
+window_tree_draw(void *modedata, void *itemdata, u_int sx, u_int sy)
 {
 	struct window_tree_itemdata	*item = itemdata;
 	struct session			*sp;
@@ -667,10 +683,10 @@ window_tree_draw(__unused void *modedata, void *itemdata, u_int sx, u_int sy)
 	case WINDOW_TREE_NONE:
 		return (0);
 	case WINDOW_TREE_SESSION:
-		window_tree_draw_session(sp, &ctx, sx, sy);
+		window_tree_draw_session(modedata, sp, &ctx, sx, sy);
 		break;
 	case WINDOW_TREE_WINDOW:
-		window_tree_draw_window(sp, wlp->window, &ctx, sx, sy);
+		window_tree_draw_window(modedata, sp, wlp->window, &ctx, sx, sy);
 		break;
 	case WINDOW_TREE_PANE:
 		screen_write_preview(&ctx, &wp->base, sx, sy);
@@ -898,8 +914,17 @@ window_tree_key(struct window_pane *wp, struct client *c,
 	int				 finished;
 	u_int				 tagged;
 
+	item = mode_tree_get_current(data->data);
 	finished = mode_tree_key(data->data, c, &key, m);
+	if (item != mode_tree_get_current(data->data))
+		data->offset = 0;
 	switch (key) {
+	case '<':
+		data->offset--;
+		break;
+	case '>':
+		data->offset++;
+		break;
 	case ':':
 		tagged = mode_tree_count_tagged(data->data);
 		if (tagged != 0)