From 61e39818ca8d9f26a248bed6d92198b37849ecc1 Mon Sep 17 00:00:00 2001
From: Jonas Fonseca <fonseca@diku.dk>
Date: Thu, 3 Apr 2008 16:41:09 +0200
Subject: [PATCH] Add support for refreshing of the stage view

Consolidate stage reloading for the edit, refresh, and update requests.
It works by first reloading the status view after which the stage view
is closed or reloaded depending on whether the status information of the
stage view still is valid.
---
 tig.c | 53 ++++++++++++++++++++++++++++++++++++++++++-----------
 1 file changed, 42 insertions(+), 11 deletions(-)

diff --git a/tig.c b/tig.c
index b723587..8fec47d 100644
--- a/tig.c
+++ b/tig.c
@@ -2307,6 +2307,7 @@ enum open_flags {
 	OPEN_SPLIT = 1,		/* Split current view. */
 	OPEN_BACKGROUNDED = 2,	/* Backgrounded. */
 	OPEN_RELOAD = 4,	/* Reload view even if it is the current. */
+	OPEN_NOMAXIMIZE = 8,	/* Do not maximize the current view. */
 };
 
 static void
@@ -2315,6 +2316,7 @@ open_view(struct view *prev, enum request request, enum open_flags flags)
 	bool backgrounded = !!(flags & OPEN_BACKGROUNDED);
 	bool split = !!(flags & OPEN_SPLIT);
 	bool reload = !!(flags & OPEN_RELOAD);
+	bool nomaximize = !!(flags & OPEN_NOMAXIMIZE);
 	struct view *view = VIEW(request);
 	int nviews = displayed_views();
 	struct view *base_view = display[0];
@@ -2333,7 +2335,7 @@ open_view(struct view *prev, enum request request, enum open_flags flags)
 		display[1] = view;
 		if (!backgrounded)
 			current_view = 1;
-	} else {
+	} else if (!nomaximize) {
 		/* Maximize the current view. */
 		memset(display, 0, sizeof(display));
 		current_view = 0;
@@ -4159,6 +4161,23 @@ status_enter(struct view *view, struct line *line)
 	return REQ_NONE;
 }
 
+static bool
+status_exists(struct status *status, enum line_type type)
+{
+	struct view *view = VIEW(REQ_VIEW_STATUS);
+	struct line *line;
+
+	for (line = view->line; line < view->line + view->lines; line++) {
+		struct status *pos = line->data;
+
+		if (line->type == type && pos &&
+		    !strcmp(status->new.name, pos->new.name))
+			return TRUE;
+	}
+
+	return FALSE;
+}
+
 
 static FILE *
 status_update_prepare(enum line_type type)
@@ -4539,26 +4558,22 @@ stage_update_chunk(struct view *view, struct line *line)
 	return TRUE;
 }
 
-static void
+static bool
 stage_update(struct view *view, struct line *line)
 {
 	if (!opt_no_head && stage_line_type != LINE_STAT_UNTRACKED &&
 	    (line->type == LINE_DIFF_CHUNK || !stage_status.status)) {
 		if (!stage_update_chunk(view, line)) {
 			report("Failed to apply chunk");
-			return;
+			return FALSE;
 		}
 
 	} else if (!status_update_file(&stage_status, stage_line_type)) {
 		report("Failed to update file");
-		return;
+		return FALSE;
 	}
 
-	open_view(view, REQ_VIEW_STATUS, OPEN_RELOAD);
-
-	view = VIEW(REQ_VIEW_STATUS);
-	if (view_is_displayed(view))
-		status_enter(view, &view->line[view->lineno]);
+	return TRUE;
 }
 
 static enum request
@@ -4576,6 +4591,10 @@ stage_request(struct view *view, enum request request, struct line *line)
 		open_editor(stage_status.status != '?', stage_status.new.name);
 		break;
 
+	case REQ_REFRESH:
+		/* Reload everything ... */
+		break;
+
 	case REQ_VIEW_BLAME:
 		if (stage_status.new.name[0]) {
 			string_copy(opt_file, stage_status.new.name);
@@ -4584,13 +4603,25 @@ stage_request(struct view *view, enum request request, struct line *line)
 		return request;
 
 	case REQ_ENTER:
-		pager_request(view, request, line);
-		break;
+		return pager_request(view, request, line);
 
 	default:
 		return request;
 	}
 
+	open_view(view, REQ_VIEW_STATUS, OPEN_RELOAD | OPEN_NOMAXIMIZE);
+
+	/* Check whether the staged entry still exists, and close the
+	 * stage view if it doesn't. */
+	if (!status_exists(&stage_status, stage_line_type))
+		return REQ_VIEW_CLOSE;
+
+	if (stage_line_type == LINE_STAT_UNTRACKED)
+		opt_pipe = fopen(stage_status.new.name, "r");
+	else
+		string_copy(opt_cmd, view->cmd);
+	open_view(view, REQ_VIEW_STAGE, OPEN_RELOAD | OPEN_NOMAXIMIZE);
+
 	return REQ_NONE;
 }
 
-- 
2.11.0