Add legacy undefined checks

Change-Id: I58c1fd45fd5eadbf5e243b7e32d97e6c1310d35c

BUILD

diff --git a/BUILD b/BUILD
index 6ff23b8..b669e82 100644
--- a/BUILD
+++ b/BUILD
@@ -1,4 +1,5 @@
 load("//tools/bzl:plugin.bzl", "gerrit_plugin")
+load("//tools/bzl:genrule2.bzl", "genrule2")
 load("//tools/bzl:js.bzl", "polygerrit_plugin")
 
 gerrit_plugin(
@@ -12,13 +13,26 @@
         "Implementation-Vendor: Wikimedia Foundation",
     ],
     resources = glob(["src/main/**/*"]),
+    resource_jars = [":gr-zuul-status-static"],
+)
+
+genrule2(
+    name = "gr-zuul-status-static",
+    srcs = [":gr-zuul-status"],
+    outs = ["gr-zuul-status-static.jar"],
+    cmd = " && ".join([
+        "mkdir $$TMP/static",
+        "cp -r $(locations :gr-zuul-status) $$TMP/static",
+        "cd $$TMP",
+        "zip -Drq $$ROOT/$@ -g .",
+    ]),
 )
 
 polygerrit_plugin(
-    name = "zuul_status_ui",
+    name = "gr-zuul-status",
     srcs = glob([
-        "src/main/resources/static/*.html",
-        "src/main/resources/static/*.js",
+        "gr-zuul-status-view/*.html",
+        "gr-zuul-status-view/*.js",
     ]),
-    app = "src/main/resources/static/zuul-status.html",
+    app = "plugin.html",
 )

gr-zuul-status-view/gr-zuul-status-view.html

diff --git a/src/main/resources/static/zuul-status-view.html b/gr-zuul-status-view/gr-zuul-status-view.html
similarity index 98%
rename from src/main/resources/static/zuul-status-view.html
rename to gr-zuul-status-view/gr-zuul-status-view.html
index e50beab..dafdacc 100644
--- a/src/main/resources/static/zuul-status-view.html
+++ b/gr-zuul-status-view/gr-zuul-status-view.html
@@ -12,7 +12,7 @@
 limitations under the License.
 -->
 
-<dom-module id="zuul-status-view">
+<dom-module id="gr-zuul-status-view">
   <template>
     <style include="shared-styles">
       #view-container {
@@ -230,5 +230,5 @@
       </svg>
     </iron-iconset-svg>
   </template>
-  <script src="zuul-status-view.js"></script>
+  <script src="gr-zuul-status-view.js"></script>
 </dom-module>

gr-zuul-status-view/gr-zuul-status-view.js

diff --git a/src/main/resources/static/zuul-status-view.js b/gr-zuul-status-view/gr-zuul-status-view.js
similarity index 98%
rename from src/main/resources/static/zuul-status-view.js
rename to gr-zuul-status-view/gr-zuul-status-view.js
index 105ebfe..650a07d 100644
--- a/src/main/resources/static/zuul-status-view.js
+++ b/gr-zuul-status-view/gr-zuul-status-view.js
@@ -59,7 +59,9 @@
   }
 
   Polymer({
-    is: 'zuul-status-view',
+    is: 'gr-zuul-status-view',
+    _legacyUndefinedCheck: true,
+
     properties: {
       zuulUrl: String,
       zuulTenant: {
@@ -399,7 +401,6 @@
 
     _getEnqueueTime(ms) {
       // Special format case for enqueue time to add style
-      let hours = 60 * 60 * 1000;
       let now = Date.now();
       let delta = now - ms;
 

plugin.html

diff --git a/src/main/resources/static/zuul-status.html b/plugin.html
similarity index 62%
rename from src/main/resources/static/zuul-status.html
rename to plugin.html
index 3979d5a..9ad5520 100644
--- a/src/main/resources/static/zuul-status.html
+++ b/plugin.html
@@ -12,18 +12,19 @@
 limitations under the License.
 -->
 
-<link rel="import" href="zuul-status-view.html">
+<link rel="import" href="./gr-zuul-status-view/gr-zuul-status-view.html">
 
 <script>
-(function() {
-  'use strict';
+  (function() {
+    'use strict';
 
-  Gerrit.install((plugin) => {
-  	// Only supported in PolyGerrit in gerrit 2.16+.
-    if (!window.Polymer) { return; }
+    // This plugin is only supported in PolyGerrit from gerrit 2.16+
+    if (window.Polymer) {
+      Gerrit.install((plugin) => {
 
-    plugin.registerCustomComponent(
-        'change-view-integration', 'zuul-status-view');
-  });
-})();
+        plugin.registerCustomComponent(
+            'change-view-integration', 'gr-zuul-status-view');
+      });
+    }
+  })();
 </script>

src/main/java/com/googlesource/gerrit/plugins/zuulstatus/HttpModule.java

diff --git a/src/main/java/com/googlesource/gerrit/plugins/zuulstatus/HttpModule.java b/src/main/java/com/googlesource/gerrit/plugins/zuulstatus/HttpModule.java
index ed8baeb..9fe0e6b 100644
--- a/src/main/java/com/googlesource/gerrit/plugins/zuulstatus/HttpModule.java
+++ b/src/main/java/com/googlesource/gerrit/plugins/zuulstatus/HttpModule.java
@@ -23,6 +23,6 @@
   @Override
   protected void configureServlets() {
     DynamicSet.bind(binder(), WebUiPlugin.class)
-        .toInstance(new JavaScriptPlugin("zuul-status.html"));
+        .toInstance(new JavaScriptPlugin("gr-zuul-status.html"));
   }
 }