feature(progress): add progress bar

https://jira.railsc.ru/browse/PC4-15672

app/assets/javascripts/standalone/progress_bar.js

@@ -0,0 +1,47 @@
+//модуль для показа прогресс-бара создания отчетов
+
+app.modules.progressBar = (function(self) {
+
+  function _requestError(data) {
+    var payload = data.payload;
+
+    if (app.config.progressBar.documentLocationError) {
+      alert('Ошибка');
+      location.href = app.config.progressBar.documentLocationError;
+    }
+
+    if (payload && payload.error_messages) {
+      $('.js-pberrors').html(payload.error_messages.join('<br>'));
+    }
+  }
+
+  function _requestSuccess(data) {
+    var
+      progress = data.progress;
+
+    if (progress && progress.message) {
+      $('.js-pbstat').text(progress.num + ' из ' + progress.total + ' (' + Math.round(progress.percent) + '%)');
+    }
+  }
+
+  function _init() {
+    $('.js-progressbar').progressBar({
+      url: app.config.progressBar.url,
+      pid: app.config.progressBar.pid,
+      onSuccess: function() {
+        location.href = app.config.progressBar.documentLocation;
+      },
+      onError: function(data) {
+        _requestError(data);
+      },
+      onRequestSuccess: function(data) {
+        _requestSuccess(data);
+      }
+    });
+  }
+
+  self.load = function() {
+    _init();
+  };
+  return self;
+}(app.modules.progressBar || {}));

app/views/shared/job_progress_bar.html.haml

@@ -0,0 +1,17 @@
+- content_for :javascripts_bottom do
+  = javascript_include_tag 'standalone/progress_bar', :defer => true
+
+#progress
+  .progressbar.js-progressbar
+  #pbstat.js-pbstat
+    #pberrors.pberrors.js-pberrors
+- if @back_url.present?
+  = link_to 'Закрыть', @back_url
+
+:javascript
+  app.config.progressBar = {
+    url: #{job_status_path(domain: :current).to_json},
+    pid: #{@job_id.to_json},
+    documentLocation: #{@success_url_js || @success_url.to_json},
+    documentLocationError: #{@error_url ? @error_url.to_json : nil.to_json}
+  };