Factor out data model -> Entity logic to Entities.js

src/Entities.js

@@ -0,0 +1,91 @@
+/*
+Copyright 2015, 2016 OpenMarket Ltd
+
+Licensed under the Apache License, Version 2.0 (the "License");
+you may not use this file except in compliance with the License.
+You may obtain a copy of the License at
+
+    http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing, software
+distributed under the License is distributed on an "AS IS" BASIS,
+WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+See the License for the specific language governing permissions and
+limitations under the License.
+*/
+
+var React = require('react');
+var sdk = require('./index');
+
+/*
+ * Converts various data models to Entity objects.
+ *
+ * Entity objects provide an interface for UI components to use to display
+ * members in a data-agnostic way. This means they don't need to care if the
+ * underlying data model is a RoomMember, User or 3PID data structure, it just
+ * cares about rendering.
+ */
+
+class Entity {
+    constructor(model) {
+        this.model = model;
+    }
+
+    getJsx() {
+        return null;
+    }
+
+    matches(queryString) {
+        return false;
+    }
+}
+
+class MemberEntity extends Entity {
+    getJsx() {
+        var MemberTile = sdk.getComponent("rooms.MemberTile");
+        return (
+            <MemberTile key={this.model.userId} member={this.model} />
+        );
+    }
+
+    matches(queryString) {
+        return this.model.name.toLowerCase().indexOf(queryString.toLowerCase()) === 0;
+    }
+}
+
+class UserEntity extends Entity {
+
+    getJsx() {
+        var UserTile = sdk.getComponent("rooms.UserTile");
+        return (
+            <UserTile key={this.model.userId} user={this.model} />
+        );
+    }
+
+    matches(queryString) {
+        return this.model.displayName.toLowerCase().indexOf(queryString.toLowerCase()) === 0;
+    }
+}
+
+
+module.exports = {
+    /**
+     * @param {RoomMember[]} members
+     * @return {Entity[]}
+     */
+    fromRoomMembers: function(members) {
+        return members.map(function(m) {
+            return new MemberEntity(m);
+        });
+    },
+
+    /**
+     * @param {User[]} users
+     * @return {Entity[]}
+     */
+    fromUsers: function(users) {
+        return users.map(function(u) {
+            return new UserEntity(u);
+        })
+    }
+};