From b4b6fa14d3774610568d55743f49c6b318a74dbc Mon Sep 17 00:00:00 2001
From: Steve Howell <steve@zulip.com>
Date: Tue, 10 Sep 2013 14:07:24 -0400
Subject: [PATCH] Persist muting preferences to the back end

(imported from commit db2d4362a0601f35a75b798cf6945556e44532fb)
---
 static/js/muting_ui.js    | 24 ++++++++++++++++++++++++
 static/js/popovers.js     |  4 ++--
 tools/jslint/check-all.js |  2 +-
 zproject/settings.py      |  1 +
 4 files changed, 28 insertions(+), 3 deletions(-)
 create mode 100644 static/js/muting_ui.js

diff --git a/static/js/muting_ui.js b/static/js/muting_ui.js
new file mode 100644
index 0000000000..abed5f92c0
--- /dev/null
+++ b/static/js/muting_ui.js
@@ -0,0 +1,24 @@
+var muting_ui = (function () {
+
+var exports = {};
+
+exports.persist_and_rerender = function () {
+    // Optimistically rerender our new muting preferences.  The back
+    // end should eventually save it, and if it doesn't, it's a recoverable
+    // error--the user can just mute the topic again, and the topic might
+    // die down before the next reload anyway, making the muting moot.
+    current_msg_list.rerender();
+    var data = {
+        muted_topics: JSON.stringify(muting.get_muted_topics())
+    };
+    $.ajax({
+        type: 'POST',
+        url: '/json/set_muted_topics',
+        data: data,
+        dataType: 'json'
+    });
+};
+
+return exports;
+}());
+
diff --git a/static/js/popovers.js b/static/js/popovers.js
index c17d84c050..498c86b995 100644
--- a/static/js/popovers.js
+++ b/static/js/popovers.js
@@ -385,7 +385,7 @@ exports.register_click_handlers = function () {
         var topic = $(e.currentTarget).data('msg-topic');
         popovers.hide_actions_popover();
         muting.mute_topic(stream, topic);
-        current_msg_list.rerender();
+        muting_ui.persist_and_rerender();
         e.stopPropagation();
         e.preventDefault();
     });
@@ -395,7 +395,7 @@ exports.register_click_handlers = function () {
         var topic = $(e.currentTarget).data('msg-topic');
         popovers.hide_actions_popover();
         muting.unmute_topic(stream, topic);
-        current_msg_list.rerender();
+        muting_ui.persist_and_rerender();
         e.stopPropagation();
         e.preventDefault();
     });
diff --git a/tools/jslint/check-all.js b/tools/jslint/check-all.js
index a450f6d757..638e6f3d2b 100644
--- a/tools/jslint/check-all.js
+++ b/tools/jslint/check-all.js
@@ -27,7 +27,7 @@ var globals =
     + ' invite ui util activity timerender MessageList MessageListView blueslip unread stream_list'
     + ' onboarding message_edit tab_bar emoji popovers navigate message_tour'
     + ' avatar feature_flags search_suggestion referral stream_color Dict'
-    + ' Filter summary admin stream_data muting WinChan'
+    + ' Filter summary admin stream_data muting WinChan muting_ui'
 
     // colorspace.js
     + ' colorspace'
diff --git a/zproject/settings.py b/zproject/settings.py
index 559bc0a6ce..668a32d8bc 100644
--- a/zproject/settings.py
+++ b/zproject/settings.py
@@ -368,6 +368,7 @@ JS_SPECS = {
             'js/util.js',
             'js/dict.js',
             'js/muting.js',
+            'js/muting_ui.js',
             'js/setup.js',
             'js/viewport.js',
             'js/rows.js',