Move status dom into js app for easy reuse

Provide helper zuul_build_dom and zuul_start functions to ease resuse
of the application. All somebody needs to do is call these two
functions to get a full status page built for them.

This still keeps the jquery.zuul plugin separate for individual
consumption.

Change-Id: I1c6e12629db3e121b3513b0b1054ed1274ceb51f
diff --git a/etc/status/public_html/zuul.app.js b/etc/status/public_html/zuul.app.js
new file mode 100644
index 0000000..6f87a92
--- /dev/null
+++ b/etc/status/public_html/zuul.app.js
@@ -0,0 +1,97 @@
+// Client script for Zuul status page
+//
+// Copyright 2013 OpenStack Foundation
+// Copyright 2013 Timo Tijhof
+// Copyright 2013 Wikimedia Foundation
+// Copyright 2014 Rackspace Australia
+//
+// Licensed under the Apache License, Version 2.0 (the "License"); you may
+// not use this file except in compliance with the License. You may obtain
+// a copy of the License at
+//
+//      http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+// WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
+// License for the specific language governing permissions and limitations
+// under the License.
+
+function zuul_build_dom($, container) {
+    // Build a default-looking DOM
+    default_layout = '<div class="container">'
+        + '<h1>Zuul Status</h1>'
+        + '<p>Real-time status monitor of Zuul, the pipeline manager between Gerrit and Workers.</p>'
+        + '<div class="zuul-container" id="zuul-container">'
+        + '<div style="display: none;" class="alert" id="zuul_msg"></div>'
+        + '<button class="btn pull-right zuul-spinner">updating <span class="glyphicon glyphicon-refresh"></span></button>'
+        + '<p>Queue lengths: <span id="zuul_queue_events_num">0</span> events, <span id="zuul_queue_results_num">0</span> results.</p>'
+        + '<div id="zuul_controls"></div>'
+        + '<div id="zuul_pipelines" class="row"></div>'
+        + '<p>Zuul version: <span id="zuul-version-span"></span></p>'
+        + '<p>Last reconfigured: <span id="last-reconfigured-span"></span></p>'
+        + '</div></div>';
+
+    $(function ($) {
+        // DOM ready
+        $container = $(container);
+        $container.html(default_layout);
+    });
+}
+
+function zuul_start($) {
+    // Start the zuul app (expects default dom)
+
+    var $container, $indicator;
+    var demo = location.search.match(/[?&]demo=([^?&]*)/),
+        source_url = location.search.match(/[?&]source_url=([^?&]*)/),
+        source = demo ? './status-' + (demo[1] || 'basic') + '.json-sample' :
+            'status.json';
+    source = source_url ? source_url[1] : source;
+
+    var zuul = $.zuul({
+        source: source,
+        //graphite_url: 'http://graphite.openstack.org/render/'
+    });
+
+    zuul.jq.on('update-start', function () {
+        $container.addClass('zuul-container-loading');
+        $indicator.addClass('zuul-spinner-on');
+    });
+
+    zuul.jq.on('update-end', function () {
+        $container.removeClass('zuul-container-loading');
+        setTimeout(function () {
+            $indicator.removeClass('zuul-spinner-on');
+        }, 500);
+    });
+
+    zuul.jq.one('update-end', function () {
+        // Do this asynchronous so that if the first update adds a
+        // message, it will not animate while we fade in the content.
+        // Instead it simply appears with the rest of the content.
+        setTimeout(function () {
+            // Fade in the content
+            $container.addClass('zuul-container-ready');
+        });
+    });
+
+    $(function ($) {
+        // DOM ready
+        $container = $('#zuul-container');
+        $indicator = $('#zuul-spinner');
+        $('#zuul_controls').append(zuul.app.control_form());
+
+        zuul.app.schedule();
+
+        $(document).on({
+            'show.visibility': function () {
+                zuul.options.enabled = true;
+                zuul.app.update();
+            },
+            'hide.visibility': function () {
+                zuul.options.enabled = false;
+            }
+        });
+    });
+}
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