commit d91e25cb53afcc579f303f2fafb6e534beda78de
from: Stefan Sperling <stsp@stsp.name>
date: Thu May 10 11:17:03 2018 UTC

implement upwards scrolling in tog log view

commit - 899d86c25715751ba2eb6b328649331c079f3b07
commit + d91e25cb53afcc579f303f2fafb6e534beda78de
blob - edb8d47113d12cde5fa1161072e3d17296431831
blob + 9b2bc1271b80bb9bdac03ecfb32839c5710922fd
--- tog/tog.c
+++ tog/tog.c
@@ -480,7 +480,7 @@ show_log_view(struct got_object_id *start_id, struct g
 	struct got_object_id *id;
 	int ch, done = 0, selected = 0;
 	struct commit_queue commits;
-	struct commit_queue_entry *pentry = NULL;
+	struct commit_queue_entry *entry = NULL;
 	struct commit_queue_entry *first_displayed_entry = NULL;
 	struct commit_queue_entry *last_displayed_entry = NULL;
 
@@ -526,6 +526,15 @@ show_log_view(struct got_object_id *start_id, struct g
 			case KEY_UP:
 				if (selected > 0)
 					selected--;
+				if (selected != 0)
+					break;
+				/* scroll down if there are more children */
+				entry = TAILQ_FIRST(&commits);
+				if (first_displayed_entry == entry)
+					break;
+				first_displayed_entry =
+				    TAILQ_PREV(first_displayed_entry,
+				        commit_queue, entry);
 				break;
 			case 'j':
 			case KEY_DOWN:
@@ -539,12 +548,12 @@ show_log_view(struct got_object_id *start_id, struct g
 					break;
 				first_displayed_entry =
 				    TAILQ_NEXT(first_displayed_entry, entry);
-				err = fetch_parent_commit(&pentry,
+				err = fetch_parent_commit(&entry,
 				    last_displayed_entry, repo);
 				if (err)
 					break;
-				if (pentry)
-					TAILQ_INSERT_TAIL(&commits, pentry,
+				if (entry)
+					TAILQ_INSERT_TAIL(&commits, entry,
 					    entry);
 				break;
 			case KEY_RESIZE: