Quicksand - make page object notifications work properly with quicksand

Summary: Fixes T7680. Make it so the listen behavior can be initialized multiple times from the server by having the behavior only update a few static data variables on subsequent initializations.

Test Plan:
visited TX with user A and left a comment with user B and got the "reload" and "TX updated" bubbles.
Reloaded and navigated to /maniphest/ with user A and had user B leave another comment on TX - no "reload" bubble and correct "TX updated" bubble.
Navigated to TX again with user A and had user B leave a comment and got the "reload" and "TX updated" bubbles.
visited TX with user A and left a comment with user B and got the "reload" and "TX updated" bubbles. navigated away with user A and the "reload" bubble was automagically closed.

Reviewers: epriestley

Reviewed By: epriestley

Subscribers: Korvin, epriestley

Maniphest Tasks: T7680

Differential Revision: https://secure.phabricator.com/D12448

resources/celerity/map.php

@@ -8,7 +8,7 @@
 return array(
   'names' => array(
     'core.pkg.css' => 'a2a90172',
-    'core.pkg.js' => 'dfea788f',
+    'core.pkg.js' => '328a9980',
     'darkconsole.pkg.js' => '8ab24e01',
     'differential.pkg.css' => '3500921f',
     'differential.pkg.js' => 'c0506961',
@@ -349,9 +349,9 @@ return array(
     'rsrc/image/texture/table_header.png' => '5c433037',
     'rsrc/image/texture/table_header_hover.png' => '038ec3b9',
     'rsrc/image/texture/table_header_tall.png' => 'd56b434f',
-    'rsrc/js/application/aphlict/Aphlict.js' => '2be71d56',
+    'rsrc/js/application/aphlict/Aphlict.js' => '30a6303c',
     'rsrc/js/application/aphlict/behavior-aphlict-dropdown.js' => '00def500',
-    'rsrc/js/application/aphlict/behavior-aphlict-listen.js' => 'bdf2226d',
+    'rsrc/js/application/aphlict/behavior-aphlict-listen.js' => 'b1a59974',
     'rsrc/js/application/aphlict/behavior-aphlict-status.js' => 'ea681761',
     'rsrc/js/application/auth/behavior-persona-login.js' => '9414ff18',
     'rsrc/js/application/config/behavior-reorder-fields.js' => '14a827de',
@@ -548,10 +548,10 @@ return array(
     'herald-test-css' => '778b008e',
     'homepage-panel-css' => 'e34bf140',
     'inline-comment-summary-css' => 'eb5f8e8c',
-    'javelin-aphlict' => '2be71d56',
+    'javelin-aphlict' => '30a6303c',
     'javelin-behavior' => '61cbc29a',
     'javelin-behavior-aphlict-dropdown' => '00def500',
-    'javelin-behavior-aphlict-listen' => 'bdf2226d',
+    'javelin-behavior-aphlict-listen' => 'b1a59974',
     'javelin-behavior-aphlict-status' => 'ea681761',
     'javelin-behavior-aphront-basic-tokenizer' => 'b3a4b884',
     'javelin-behavior-aphront-crop' => 'fa0f4fc2',
@@ -1034,13 +1034,6 @@ return array(
       'javelin-install',
       'javelin-util',
     ),
-    '2be71d56' => array(
-      'javelin-install',
-      'javelin-util',
-      'javelin-websocket',
-      'javelin-leader',
-      'javelin-json',
-    ),
     '2bfa2836' => array(
       'javelin-behavior',
       'javelin-stratcom',
@@ -1056,6 +1049,13 @@ return array(
       'javelin-install',
       'javelin-event',
     ),
+    '30a6303c' => array(
+      'javelin-install',
+      'javelin-util',
+      'javelin-websocket',
+      'javelin-leader',
+      'javelin-json',
+    ),
     '316b8fa1' => array(
       'javelin-install',
       'javelin-typeahead-source',
@@ -1689,6 +1689,20 @@ return array(
       'javelin-util',
       'phabricator-prefab',
     ),
+    'b1a59974' => array(
+      'javelin-behavior',
+      'javelin-aphlict',
+      'javelin-stratcom',
+      'javelin-request',
+      'javelin-uri',
+      'javelin-dom',
+      'javelin-json',
+      'javelin-router',
+      'javelin-util',
+      'javelin-leader',
+      'javelin-sound',
+      'phabricator-notification',
+    ),
     'b1f0ccee' => array(
       'javelin-install',
       'javelin-dom',
@@ -1748,20 +1762,6 @@ return array(
       'javelin-util',
       'javelin-request',
     ),
-    'bdf2226d' => array(
-      'javelin-behavior',
-      'javelin-aphlict',
-      'javelin-stratcom',
-      'javelin-request',
-      'javelin-uri',
-      'javelin-dom',
-      'javelin-json',
-      'javelin-router',
-      'javelin-util',
-      'javelin-leader',
-      'javelin-sound',
-      'phabricator-notification',
-    ),
     'be807912' => array(
       'javelin-behavior',
       'javelin-dom',

src/view/page/PhabricatorStandardPageView.php

@@ -461,11 +461,6 @@ final class PhabricatorStandardPageView extends PhabricatorBarePageView {
           $client_uri->setDomain($this_host->getDomain());
         }
 
-        $subscriptions = $this->pageObjects;
-        if ($user) {
-          $subscriptions[] = $user->getPHID();
-        }
-
         if ($request->isHTTPS()) {
           $client_uri->setProtocol('wss');
         } else {
@@ -476,9 +471,7 @@ final class PhabricatorStandardPageView extends PhabricatorBarePageView {
           'aphlict-listen',
           array(
             'websocketURI'  => (string)$client_uri,
-            'pageObjects'   => array_fill_keys($this->pageObjects, true),
-            'subscriptions' => $subscriptions,
-          ));
+          ) + $this->buildAphlictListenConfigData());
       }
     }
 
@@ -590,7 +583,18 @@ final class PhabricatorStandardPageView extends PhabricatorBarePageView {
   }
 
   private function buildQuicksandConfig() {
-    return array();
+    return $this->buildAphlictListenConfigData();
+  }
+
+  private function buildAphlictListenConfigData() {
+    $user = $this->getRequest()->getUser();
+    $subscriptions = $this->pageObjects;
+    $subscriptions[] = $user->getPHID();
+
+    return array(
+      'pageObjects'   => array_fill_keys($this->pageObjects, true),
+      'subscriptions' => $subscriptions,
+    );
   }
 
   private function getQuicksandURIPatternBlacklist() {

webroot/rsrc/js/application/aphlict/Aphlict.js

@@ -49,6 +49,20 @@ JX.install('Aphlict', {
       JX.Leader.call(JX.bind(this, this._begin));
     },
 
+    setSubscriptions: function(subscriptions) {
+      this._subscriptions = subscriptions;
+      JX.Leader.broadcast(
+        null,
+        {type: 'aphlict.subscribe', data: this._subscriptions});
+    },
+
+    clearSubscriptions: function(subscriptions) {
+      this._subscriptions = null;
+      JX.Leader.broadcast(
+        null,
+        {type: 'aphlict.unsubscribe', data: subscriptions});
+    },
+
     getStatus: function() {
       return this._status;
     },

webroot/rsrc/js/application/aphlict/behavior-aphlict-listen.js

@@ -15,7 +15,8 @@
  */
 
 JX.behavior('aphlict-listen', function(config) {
-  var showing_reload = false;
+  var page_objects = config.pageObjects;
+  var reload_notification = null;
 
   JX.Stratcom.listen('aphlict-server-message', null, function(e) {
     var message = e.getData();
@@ -78,15 +79,28 @@ JX.behavior('aphlict-listen', function(config) {
 
     // If the notification affected an object on this page, show a
     // permanent reload notification if we aren't already.
-    if ((response.primaryObjectPHID in config.pageObjects) && !showing_reload) {
+    if ((response.primaryObjectPHID in page_objects) &&
+      reload_notification === null) {
+
       var reload = new JX.Notification()
         .setContent('Page updated, click to reload.')
         .alterClassName('jx-notification-alert', true)
         .setDuration(0);
-      reload.listen('activate', function() { JX.$U().go(); });
+      reload.listen(
+        'activate',
+        function() {
+          // double check we are still on the page where re-loading makes
+          // sense...!
+          if (response.primaryObjectPHID in page_objects) {
+            JX.$U().go();
+          }
+        });
       reload.show();
 
-      showing_reload = true;
+      reload_notification = {
+        dialog: reload,
+        phid: response.primaryObjectPHID
+      };
     }
   });
 
@@ -98,6 +112,25 @@ JX.behavior('aphlict-listen', function(config) {
     .setHandler(onAphlictMessage)
     .start();
 
+  JX.Stratcom.listen(
+    'quicksand-redraw',
+    null,
+    function (e) {
+      var old_data = e.getData().oldResponse;
+      var new_data = e.getData().newResponse;
+      client.clearSubscriptions(old_data.subscriptions);
+      client.setSubscriptions(new_data.subscriptions);
+
+      page_objects = new_data.pageObjects;
+      if (reload_notification) {
+        if (reload_notification.phid in page_objects) {
+          return;
+        }
+        reload_notification.dialog.hide();
+        reload_notification = null;
+      }
+    });
+
   JX.Leader.listen('onReceiveBroadcast', function(message, is_leader) {
     if (message.type !== 'sound') {
       return;