runtime/bin/vmservice/client/lib/src/elements/io_view.dart

// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
// for details. All rights reserved. Use of this source code is governed by a
// BSD-style license that can be found in the LICENSE file.

library io_view_element;

import 'dart:async';
import 'observatory_element.dart';
import 'service_ref.dart';
import 'package:observatory/service.dart';
import 'package:polymer/polymer.dart';

@CustomTag('io-view')
class IOViewElement extends ObservatoryElement {
  @published ServiceMap io;

  IOViewElement.created() : super.created();

  void refresh(var done) {
    io.reload().whenComplete(done);
  }
}

@CustomTag('io-http-server-list-view')
class IOHttpServerListViewElement extends ObservatoryElement {
  @published ServiceMap list;

  IOHttpServerListViewElement.created() : super.created();

  void refresh(var done) {
    list.reload().whenComplete(done);
  }
}

@CustomTag('io-http-server-ref')
class IOHttpServerRefElement extends ServiceRefElement {
  IOHttpServerRefElement.created() : super.created();
}

@CustomTag('io-http-server-view')
class IOHttpServerViewElement extends ObservatoryElement {
  // TODO(ajohnsen): Create a HttpServer object.
  @published ServiceMap httpServer;
  Timer _updateTimer;

  IOHttpServerViewElement.created() : super.created();

  void refresh(var done) {
    httpServer.reload().whenComplete(done);
  }

  void _updateHttpServer() {
    refresh(() {
      if (_updateTimer != null) {
        _updateTimer = new Timer(new Duration(seconds: 1), _updateHttpServer);
      }
    });
  }

  void enteredView() {
    super.enteredView();
    // Start a timer to update the isolate summary once a second.
    _updateTimer = new Timer(new Duration(seconds: 1), _updateHttpServer);
  }

  void leftView() {
    super.leftView();
    if (_updateTimer != null) {
      _updateTimer.cancel();
      _updateTimer = null;
    }
  }
}