Add a pager on the repolist

This enables a pager on the repolist which restricts the number of entries
displayed per page, controlled by the new option `max-repo-count` (default
value 50).

Signed-off-by: Lars Hjemli <hjemli@gmail.com>

4 files changed, 32 insertions, 1 deletions

diff --git a/cgit.c b/cgit.c
index ccd61f4..2036ceb 100644
--- a/cgit.c
+++ b/cgit.c
@@ -62,12 +62,14 @@ void config_cb(const char *name, const char *value)
         else if (!strcmp(name, "cache-dynamic-ttl"))
                 ctx.cfg.cache_dynamic_ttl = atoi(value);
         else if (!strcmp(name, "max-message-length"))
                 ctx.cfg.max_msg_len = atoi(value);
         else if (!strcmp(name, "max-repodesc-length"))
                 ctx.cfg.max_repodesc_len = atoi(value);
+        else if (!strcmp(name, "max-repo-count"))
+                ctx.cfg.max_repo_count = atoi(value);
         else if (!strcmp(name, "max-commit-count"))
                 ctx.cfg.max_commit_count = atoi(value);
         else if (!strcmp(name, "summary-log"))
                 ctx.cfg.summary_log = atoi(value);
         else if (!strcmp(name, "summary-branches"))
                 ctx.cfg.summary_branches = atoi(value);
@@ -156,12 +158,13 @@ static void prepare_context(struct cgit_context *ctx)
         ctx->cfg.cache_repo_ttl = 5;
         ctx->cfg.cache_root = CGIT_CACHE_ROOT;
         ctx->cfg.cache_root_ttl = 5;
         ctx->cfg.cache_static_ttl = -1;
         ctx->cfg.css = "/cgit.css";
         ctx->cfg.logo = "/git-logo.png";
+        ctx->cfg.max_repo_count = 50;
         ctx->cfg.max_commit_count = 50;
         ctx->cfg.max_lock_attempts = 5;
         ctx->cfg.max_msg_len = 60;
         ctx->cfg.max_repodesc_len = 60;
         ctx->cfg.module_link = "./?repo=%s&page=commit&id=%s";
         ctx->cfg.renamelimit = -1;
diff --git a/cgit.css b/cgit.css
index 30cb8e6..d57722c 100644
--- a/cgit.css
+++ b/cgit.css
@@ -410,12 +410,22 @@ td.toplevel-repo {
 }
 
 table.list td.sublevel-repo {
         padding-left: 1.5em;
 }
 
+div.pager {
+        text-align: center;
+        margin: 1em 0em 0em 0em;
+}
+
+div.pager a {
+        color: #777;
+        margin: 0em 0.5em;
+}
+
 span.age-mins {
         font-weight: bold;
         color: #080;
 }
 
 span.age-hours {
diff --git a/cgit.h b/cgit.h
index bbb404e..4fa5cf2 100644
--- a/cgit.h
+++ b/cgit.h
@@ -142,12 +142,13 @@ struct cgit_config {
         int cache_repo_ttl;
         int cache_root_ttl;
         int cache_static_ttl;
         int enable_index_links;
         int enable_log_filecount;
         int enable_log_linecount;
+        int max_repo_count;
         int max_commit_count;
         int max_lock_attempts;
         int max_msg_len;
         int max_repodesc_len;
         int nocache;
         int renamelimit;
diff --git a/ui-repolist.c b/ui-repolist.c
index 3f78e28..ee4facb 100644
--- a/ui-repolist.c
+++ b/ui-repolist.c
@@ -68,12 +68,23 @@ void print_header(int columns)
              "<th class='left'>Idle</th>");
         if (ctx.cfg.enable_index_links)
                 html("<th class='left'>Links</th>");
         html("</tr>\n");
 }
 
+
+void print_pager(int items, int pagelen, char *search)
+{
+        int i;
+        html("<div class='pager'>");
+        for(i = 0; i * pagelen < items; i++)
+                cgit_index_link(fmt("[%d]", i+1), fmt("Page %d", i+1), NULL,
+                                search, i * pagelen);
+        html("</div>");
+}
+
 void cgit_print_repolist()
 {
         int i, columns = 4, hits = 0, header = 0;
         char *last_group = NULL;
 
         if (ctx.cfg.enable_index_links)
@@ -89,15 +100,19 @@ void cgit_print_repolist()
 
         html("<table summary='repository list' class='list nowrap'>");
         for (i=0; i<cgit_repolist.count; i++) {
                 ctx.repo = &cgit_repolist.repos[i];
                 if (!is_match(ctx.repo))
                         continue;
+                hits++;
+                if (hits <= ctx.qry.ofs)
+                        continue;
+                if (hits > ctx.qry.ofs + ctx.cfg.max_repo_count)
+                        continue;
                 if (!header++)
                         print_header(columns);
-                hits++;
                 if ((last_group == NULL && ctx.repo->group != NULL) ||
                     (last_group != NULL && ctx.repo->group == NULL) ||
                     (last_group != NULL && ctx.repo->group != NULL &&
                      strcmp(ctx.repo->group, last_group))) {
                         htmlf("<tr class='nohover'><td colspan='%d' class='repogroup'>",
                               columns);
@@ -131,12 +146,14 @@ void cgit_print_repolist()
                 }
                 html("</tr>\n");
         }
         html("</table>");
         if (!hits)
                 cgit_print_error("No repositories found");
+        else if (hits > ctx.cfg.max_repo_count)
+                print_pager(hits, ctx.cfg.max_repo_count, ctx.qry.search);
         cgit_print_docend();
 }
 
 void cgit_print_site_readme()
 {
         if (ctx.cfg.root_readme)