ui-diff: Add links to increase/decrease number of context lines in diffs

Add two links to the "Diffstat" line to show more/less context lines in the
generated diff.

To support this, cgit_commit_link() and cgit_diff_link() has learned to
preserve the ctx.qry.context variable.

Signed-off-by: Johan Herland <johan@herland.net>
Signed-off-by: Lars Hjemli <hjemli@gmail.com>

1 files changed, 14 insertions, 0 deletions

diff --git a/ui-shared.c b/ui-shared.c
index e991799..c99bcec 100644
--- a/ui-shared.c
+++ b/ui-shared.c
@@ -341,6 +341,13 @@ void cgit_commit_link(char *name, const char *title, const char *class,
         if ((ctx.qry.ssdiff && !toggle_ssdiff) || (!ctx.qry.ssdiff && toggle_ssdiff)) {
                 html(delim);
                 html("ss=1");
+                delim = "&";
+        }
+        if (ctx.qry.context > 0 && ctx.qry.context != 3) {
+                html(delim);
+                html("context=");
+                htmlf("%d", ctx.qry.context);
+                delim = "&";
         }
         html("'>");
         html_txt(name);
@@ -382,6 +389,13 @@ void cgit_diff_link(const char *name, const char *title, const char *class,
         if ((ctx.qry.ssdiff && !toggle_ssdiff) || (!ctx.qry.ssdiff && toggle_ssdiff)) {
                 html(delim);
                 html("ss=1");
+                delim = "&";
+        }
+        if (ctx.qry.context > 0 && ctx.qry.context != 3) {
+                html(delim);
+                html("context=");
+                htmlf("%d", ctx.qry.context);
+                delim = "&";
         }
         html("'>");
         html_txt(name);