Add --window_title flag. (#804)

tensorboard/backend/application.py

@@ -79,7 +79,8 @@ def standard_tensorboard_wsgi(
     plugins,
     db_uri="",
     assets_zip_provider=None,
-    path_prefix=""):
+    path_prefix="",
+    window_title=""):
   """Construct a TensorBoardWSGIApp with standard plugins and multiplexer.
 
   Args:
@@ -95,6 +96,7 @@ def standard_tensorboard_wsgi(
         If this value is not specified, this function will attempt to load
         the `tensorboard.default` module to use the default. This behavior
         might be removed in the future.
+    window_title: A string specifying the the window title.
 
   Returns:
     The new TensorBoard WSGI application.
@@ -119,7 +121,8 @@ def standard_tensorboard_wsgi(
       logdir=logdir,
       multiplexer=multiplexer,
       assets_zip_provider=assets_zip_provider,
-      plugin_name_to_instance=plugin_name_to_instance)
+      plugin_name_to_instance=plugin_name_to_instance,
+      window_title=window_title)
   plugin_instances = [constructor(context) for constructor in plugins]
   for plugin_instance in plugin_instances:
     plugin_name_to_instance[plugin_instance.plugin_name] = plugin_instance

tensorboard/components/tf_backend/router.ts

@@ -18,6 +18,7 @@ export interface Router {
   logdir: () => string;
   runs: () => string;
   pluginsListing: () => string;
+  windowProperties: () => string;
   isDemoMode: () => boolean;
   pluginRoute: (pluginName: string, route: string) => string;
 }
@@ -47,6 +48,7 @@ export function createRouter(dataDir = 'data', demoMode = false): Router {
     logdir: () => dataDir + '/logdir',
     runs: () => dataDir + '/runs' + (demoMode ? '.json' : ''),
     pluginsListing: () => dataDir + '/plugins_listing',
+    windowProperties: () => dataDir + '/window_properties',
     isDemoMode: () => demoMode,
     pluginRoute,
   };

tensorboard/components/tf_tensorboard/tf-tensorboard.html

@@ -669,6 +669,7 @@ <h3>There’s no dashboard by the name of “<tt>[[_selectedDashboard]]</tt>.”
           'dom-change', onDomChange, /*useCapture=*/false);
 
         tf_backend.fetchRuns();
+        this._fetchWindowProperties();
         this._fetchLogdir();
         this._fetchActiveDashboards();
         this._lastReloadTime = new Date().toString();
@@ -706,6 +707,15 @@ <h3>There’s no dashboard by the name of “<tt>[[_selectedDashboard]]</tt>.”
           .then(updateActiveDashboards, onFailure);
       },
 
+      _fetchWindowProperties() {
+        const url = tf_backend.getRouter().windowProperties();
+        return this._requestManager.request(url).then(result => {
+          if (result.window_title) {
+            window.document.title = result.window_title;
+          }
+        });
+      },
+
       _computeActiveDashboardsNotLoaded(state) {
         return state === tf_tensorboard.ActiveDashboardsLoadState.NOT_LOADED;
       },

tensorboard/plugins/base_plugin.py

@@ -88,7 +88,8 @@ def __init__(
       db_module=None,
       logdir=None,
       multiplexer=None,
-      plugin_name_to_instance=None):
+      plugin_name_to_instance=None,
+      window_title=None):
     """Instantiates magic container.
 
     The argument list is sorted and may be extended in the future; therefore,
@@ -120,10 +121,12 @@ def __init__(
           plugin may be absent from this mapping until it is registered. Plugin
           logic should handle cases in which a plugin is absent from this
           mapping, lest a KeyError is raised.
+      window_title: A string specifying the the window title.
     """
     self.assets_zip_provider = assets_zip_provider
     self.db_connection_provider = db_connection_provider
     self.db_module = db_module
     self.logdir = logdir
     self.multiplexer = multiplexer
     self.plugin_name_to_instance = plugin_name_to_instance
+    self.window_title = window_title

tensorboard/plugins/core/core_plugin.py

@@ -48,6 +48,7 @@ def __init__(self, context):
       context: A base_plugin.TBContext instance.
     """
     self._logdir = context.logdir
+    self._window_title = context.window_title
     self._multiplexer = context.multiplexer
     self._assets_zip_provider = context.assets_zip_provider
 
@@ -60,6 +61,7 @@ def get_plugin_apps(self):
         '/audio': self._redirect_to_index,
         '/data/logdir': self._serve_logdir,
         '/data/runs': self._serve_runs,
+        '/data/window_properties': self._serve_window_properties,
         '/events': self._redirect_to_index,
         '/favicon.ico': self._send_404_without_logging,
         '/graphs': self._redirect_to_index,
@@ -97,6 +99,12 @@ def _serve_logdir(self, request):
     return http_util.Respond(
         request, {'logdir': self._logdir}, 'application/json')
 
+  @wrappers.Request.application
+  def _serve_window_properties(self, request):
+    """Serve a JSON object containing this TensorBoard's window properties."""
+    return http_util.Respond(
+        request, {'window_title': self._window_title}, 'application/json')
+
   @wrappers.Request.application
   def _serve_runs(self, request):
     """WSGI app serving a JSON object about runs and tags.

tensorboard/program.py

@@ -118,6 +118,10 @@
     'based routing of an elb when the website base_url is not available '
     'e.g. "example.site.com/path/to/tensorboard/"')
 
+tf.flags.DEFINE_string(
+    'window_title', '',
+    'The title of the browser window.')
+
 FLAGS = tf.flags.FLAGS
 
 
@@ -191,7 +195,8 @@ def create_tb_app(plugins, assets_zip_provider=None):
       purge_orphaned_data=FLAGS.purge_orphaned_data,
       reload_interval=FLAGS.reload_interval,
       plugins=plugins,
-      path_prefix=FLAGS.path_prefix)
+      path_prefix=FLAGS.path_prefix,
+      window_title=FLAGS.window_title)
 
 
 def make_simple_server(tb_app, host=None, port=None, path_prefix=None):