last changes before BREAKING some shit|

src/wikimap.js

@@ -31,7 +31,7 @@ export class Map {
         this.historylinks = {};
         this.links = null;
         this.highlight_category = null;
-        this.show_history = false;
+        this.show_history = true;
     }
 
     nodeclick (d, elt) {
@@ -148,6 +148,28 @@ export class Map {
         cat.append("span").attr("class", "count").html(d => d.tcount)
     }
 
+    async load_legend (src, elt) {
+        var data = await json(src);
+        console.log("load_legend", data);
+        var cat = select(elt)
+            .selectAll("div.cat")
+            .data(data)
+            .enter()
+            .append("div")
+            .attr("class", "cat icon");
+        cat.append("span")
+            .attr("class", "icon")
+            .style("background-image", d => "url("+d.icon+")");
+        cat.append("a")
+            .attr("class", "label")
+            .html(d => d.key)
+            .attr("href", "#").on("click", d => {
+                event.preventDefault();
+                this.category_click(d);
+            })
+        cat.append("span").attr("class", "count").html(d => d.tcount)
+    }
+
     category_click (d) {
         console.log("category click", d);
         if (this.highlight_category) {