ui-tree: move set_title_from_path to ui-shared

The ui-blame code will also need to call set_title_from_path, so go
ahead and move it to ui-shared.

Signed-off-by: Jeff Smith <whydoubt@gmail.com>
Reviewed-by: John Keeping <john@keeping.me.uk>

1 files changed, 31 insertions, 0 deletions

diff --git a/ui-shared.c b/ui-shared.c
index e5c9a02..2547e43 100644
--- a/ui-shared.c
+++ b/ui-shared.c
@@ -1111,3 +1111,34 @@ void cgit_print_snapshot_links(const char *repo, const char *head,
         }
         strbuf_release(&filename);
 }
+
+void cgit_set_title_from_path(const char *path)
+{
+        size_t path_len, path_index, path_last_end;
+        char *new_title;
+
+        if (!path)
+                return;
+
+        path_len = strlen(path);
+        new_title = xmalloc(path_len + 3 + strlen(ctx.page.title) + 1);
+        new_title[0] = '\0';
+
+        for (path_index = path_len, path_last_end = path_len; path_index-- > 0;) {
+                if (path[path_index] == '/') {
+                        if (path_index == path_len - 1) {
+                                path_last_end = path_index - 1;
+                                continue;
+                        }
+                        strncat(new_title, &path[path_index + 1], path_last_end - path_index - 1);
+                        strcat(new_title, "\\");
+                        path_last_end = path_index;
+                }
+        }
+        if (path_last_end)
+                strncat(new_title, path, path_last_end);
+
+        strcat(new_title, " - ");
+        strcat(new_title, ctx.page.title);
+        ctx.page.title = new_title;
+}