Persist muting preferences to the back end

(imported from commit db2d4362a0601f35a75b798cf6945556e44532fb)

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;
+}());
+

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();
     });

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'

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',