Add documentation

frontend/documentation/js/search/search-lunr.js

@@ -0,0 +1,67 @@
+(function(compodoc) {
+
+    function LunrSearchEngine() {
+        this.index = undefined;
+        this.store = {};
+        this.name = 'LunrSearchEngine';
+    }
+
+    LunrSearchEngine.prototype.init = function() {
+        var that = this,
+            d = new promise.Promise();
+
+        that.index = lunr.Index.load(COMPODOC_SEARCH_INDEX.index);
+        that.store = COMPODOC_SEARCH_INDEX.store;
+        d.done();
+
+        return d;
+    };
+
+    LunrSearchEngine.prototype.search = function(q, offset, length) {
+        var that = this,
+            results = [],
+            d = new promise.Promise();
+
+        if (this.index) {
+            results = $.map(this.index.search('*' + q + '*'), function(result) {
+                var doc = that.store[result.ref];
+
+                return {
+                    title: doc.title,
+                    url: doc.url,
+                    body: doc.summary || doc.body
+                };
+            });
+        }
+
+        d.done({
+            query: q,
+            results: length === 0 ? results : results.slice(0, length),
+            count: results.length
+        });
+
+        return d;
+    };
+
+    compodoc.addEventListener(compodoc.EVENTS.READY, function(event) {
+        var engine = new LunrSearchEngine(),
+            initialized = false;
+
+        function query(q, offset, length) {
+            if (!initialized) throw new Error('Search has not been initialized');
+            return engine.search(q, offset, length);
+        }
+
+        compodoc.search = {
+            query: query
+        };
+
+        engine.init()
+        .then(function() {
+            initialized = true;
+            compodoc.dispatchEvent({
+                type: compodoc.EVENTS.SEARCH_READY
+            });
+        });
+    });
+})(compodoc);