From 0bd3af2bc86fef7907becaca8933f23c67e0369c Mon Sep 17 00:00:00 2001
From: Steve Howell <showell30@yahoo.com>
Date: Mon, 13 Feb 2017 12:42:57 -0800
Subject: [PATCH] Create narrow.update_email().

---
 frontend_tests/node_tests/narrow.js | 21 +++++++++++++++++++++
 static/js/narrow.js                 |  7 +++++++
 2 files changed, 28 insertions(+)

diff --git a/frontend_tests/node_tests/narrow.js b/frontend_tests/node_tests/narrow.js
index edd34f7569..86e802d86f 100644
--- a/frontend_tests/node_tests/narrow.js
+++ b/frontend_tests/node_tests/narrow.js
@@ -200,3 +200,24 @@ function set_filter(operators) {
     assert.equal(hide_id,'.empty_feed_notice');
     assert.equal(show_id, '#empty_search_narrow_message');
 }());
+
+(function test_update_email() {
+    var steve = {
+        email: 'steve@foo.com',
+        user_id: 43,
+        full_name: 'Steve',
+    };
+
+    people.add(steve);
+    set_filter([
+        ['pm-with', 'steve@foo.com'],
+        ['sender', 'steve@foo.com'],
+        ['stream', 'steve@foo.com'], // try to be tricky
+    ]);
+    narrow.update_email(steve.user_id, 'showell@foo.com');
+    var filter = narrow.filter();
+    assert.deepEqual(filter.operands('pm-with'), ['showell@foo.com']);
+    assert.deepEqual(filter.operands('sender'), ['showell@foo.com']);
+    assert.deepEqual(filter.operands('stream'), ['steve@foo.com']);
+}());
+
diff --git a/static/js/narrow.js b/static/js/narrow.js
index ad058e16e2..b9e7239a62 100644
--- a/static/js/narrow.js
+++ b/static/js/narrow.js
@@ -32,6 +32,13 @@ exports.operators = function () {
     return current_filter.operators();
 };
 
+exports.update_email = function (user_id, new_email) {
+    if (current_filter !== undefined) {
+        current_filter.update_email(user_id, new_email);
+    }
+};
+
+
 /* Operators we should send to the server. */
 exports.public_operators = function () {
     if (current_filter === undefined) {