Make number of nodes listed on index configurable

src/types.rs

@@ -82,6 +82,10 @@ pub struct Config {
     pub index_search: bool,
     #[serde(default = "mktrue")]
     pub index_node_list: bool,
+    #[serde(default = "mk8")]
+    pub index_node_count: u16,
+    #[serde(default = "mktrue")]
+    pub index_root_node: bool,
     #[serde(default = "mktrue")]
     pub tree_node_text: bool,
 }
@@ -90,6 +94,9 @@ pub struct Config {
 fn mktrue() -> bool {
     true
 }
+fn mk8() -> u16 {
+    8
+}
 
 impl Graph {
     pub fn new(message: Option<String>) -> Graph {
@@ -113,6 +120,8 @@ impl Graph {
                     raw_json: true,
                     index_search: true,
                     index_node_list: true,
+                    index_node_count: 8,
+                    index_root_node: true,
                     tree_node_text: true,
                 },
                 version: (0, 1, 0),

static/graph.toml

@@ -140,5 +140,3 @@ footer_credits = false
 footer_text = """
 made by jutty • acknowledgements • source code
 """
-
-

templates/index.html

@@ -20,25 +20,36 @@
         <input type="submit" value="Submit"/>
     </form>
     {% endif %}
-    {% if config.index_node_list %}
+    {% if config.index_node_list or config.index_root_node %}
     <hr>
+    {% if config.index_node_list %}
     <h2>Nodes</h2>
+    {% endif %}
     <nav>
-        {% if root_node %}
+        {% if root_node and config.index_root_node %}
         <p>
             <strong>Root</strong>:
             <a href="/node/{{root_node.id}}">{{root_node.title}}</a>
         </p>
         {% endif %}
-        {% if nodes %}
+        {% if nodes and config.index_node_list %}
         <ul>
-        {% for node in nodes %}
+        {% for node in nodes | slice(end=config.index_node_count) %}
         {% if node.id != root_node.id %}
         <li><a href="/node/{{node.id}}">{{node.title}}</a></li>
         {% endif %}
         {% endfor %}
-        {% endif %}
         </ul>
+        {% if config.index_node_count < nodes | length %}
+        <br/>
+        <em style="font-size:0.9em"">
+           Listing {{ config.index_node_count }} of {{ nodes | length }} nodes, {{ nodes | length - config.index_node_count }} not shown in this sample.
+           {% if config.tree %}
+           See the <a href="/tree">tree</a> for a full list.
+           {% endif %}
+        </em>
+        {% endif %}
+        {% endif %}
     </nav>
     {% endif %}
     {% else %}