Complete the switch to ServiceObject

runtime/bin/vmservice/client/lib/src/app/location_manager.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.
 
 part of app;
 
 /// The LocationManager class observes and parses the hash ('#') portion of the
 /// URL in window.location. The text after the '#' is used as the request
 /// string for the VM service.
 class LocationManager extends Observable {
-  static const int InvalidIsolateId = 0;
   static const String defaultHash = '#/isolates/';
-  static final RegExp currentIsolateMatcher = new RegExp(r"#/isolates/\d+");
+  static final RegExp _currentIsolateMatcher = new RegExp(r'#/isolates/\d+');
+  static final RegExp _currentObjectMatcher = new RegExp(r'#/isolates/\d+/');
+  ObservatoryApplication _app;
+  @observable String currentHash = '';
 
-  ObservatoryApplication _app;
-  ObservatoryApplication get app => _app;
-
-  @observable bool profile = false;
-  @observable String currentHash = '';
-  @observable Uri currentHashUri;
   void init() {
     window.onHashChange.listen((event) {
       if (setDefaultHash()) {
         // We just triggered another onHashChange event.
         return;
       }
-      notifyPropertyChange(#hasCurrentIsolate, !hasCurrentIsolate,
-                           hasCurrentIsolate);
       // Request the current anchor.
       requestCurrentHash();
     });
 
     if (!setDefaultHash()) {
       // An anchor was already present, trigger a request.
       requestCurrentHash();
     }
   }
 
-
-  /// Returns the current isolate prefix, i.e. '#/isolates/XX/' if one
-  /// is present and null otherwise.
-  String currentIsolateAnchorPrefix() {
-    Match m = currentIsolateMatcher.matchAsPrefix(currentHash);
-    if (m == null) {
-      return null;
-    }
-    return m.input.substring(m.start, m.end);
-  }
-
-  /// Returns the current object id.
-  String currentObjectId() {
-    Match m = currentIsolateMatcher.matchAsPrefix(currentHash);
+  /// Parses the location entry and extracts the id for the object
+  /// inside the current isolate.
+  String currentIsolateObjectId() {
+    Match m = _currentObjectMatcher.matchAsPrefix(currentHash);
     if (m == null) {
       return null;
     }
     return m.input.substring(m.end);
   }
 
-  /// Predicate, does the current URL have a current isolate ID in it?
-  @observable bool get hasCurrentIsolate {
-    return currentIsolateAnchorPrefix() != null;
-  }
-
-  /// Extract the current isolate id as an integer. Returns [InvalidIsolateId]
-  /// if none is present in window.location.
+  /// Parses the location entry and extracts the id for the current isolate.
   String currentIsolateId() {
-    var prefix = currentIsolateAnchorPrefix();
-    if (prefix == null) {
+    Match m = _currentIsolateMatcher.matchAsPrefix(currentHash);
+    if (m == null) {
       return '';
     }
-    // Chop off the '/#'.
-    return prefix.substring(2);
+    return m.input.substring(2, m.end);
   }
 
   /// Returns the current isolate.
   @observable Isolate currentIsolate() {
     var id = currentIsolateId();
     if (id == '') {
       return null;
     }
-    return app.vm.getIsolate(id);
+    return _app.vm.isolates.getIsolate(id);
   }
 
   /// If no anchor is set, set the default anchor and return true.
   /// Return false otherwise.
   bool setDefaultHash() {
     currentHash = window.location.hash;
     if (currentHash == '' || currentHash == '#') {
       window.location.hash = defaultHash;
       return true;
     }
     return false;
   }
 
-  /// Take the current request string from window.location and submit the
-  /// request to the request manager.
+  void _setResponse(ServiceObject serviceObject) {
+    _app.response = serviceObject;
+  }
+
+  /// Refresh the service object reference in the location entry.
   void requestCurrentHash() {
     currentHash = window.location.hash;
-    // Chomp off the #
-    String requestUrl = currentHash.substring(1);
-    app.isolate = currentIsolate();
-    currentHashUri = Uri.parse(requestUrl);
-    if (app.isolate == null) {
-      Logger.root.warning('Refreshing isolates.');
-      app.vm.refreshIsolates();
+    _app.isolate = currentIsolate();
+    if (_app.isolate == null) {
+      // No current isolate, refresh the isolate list.
+      _app.vm.isolates.reload().then(_setResponse);
       return;
     }
-    var objectId = currentObjectId();
-    Logger.root.info('Asking ${app.isolate.id} for ${objectId}');
-    app.isolate.get(objectId).then((so) {
-      app.response = so;
-    });
+    // Have a current isolate, request object.
+    var objectId = currentIsolateObjectId();
+    _app.isolate.get(objectId).then(_setResponse);
   }
 }