Converted Observatory cpu-profile element

runtime/observatory/lib/src/app/page.dart

 // Copyright (c) 2014, 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;
 
+IsolateSampleProfileRepository _isolateSampleProfileRepository
+    = new IsolateSampleProfileRepository();
+
 class IsolateNotFound implements Exception {
   String isolateId;
   IsolateNotFound(this.isolateId);
   String toString() => "IsolateNotFound: $isolateId";
 }
 
 /// A [Page] controls the user interface of Observatory. At any given time
 /// one page will be the current page. Pages are registered at startup.
 /// When the user navigates within the application, each page is asked if it
 /// can handle the current location, the first page to say yes, wins.
@@ skipping 23 matching lines @@
     _visit(uri);
   }
 
   // Overridden by subclasses.
   void _visit(Uri uri);
 
   /// Called to test whether this page can visit [uri].
   bool canVisit(Uri uri);
 }
 
-/// A [SimplePage] matches a single uri path and displays a single element.
-class SimplePage extends Page {
+/// A [MatchingPage] matches a single uri path.
+abstract class MatchingPage extends Page {
   final String path;
-  final String elementTagName;
-  SimplePage(this.path, this.elementTagName, app) : super(app);
-
-  void onInstall() {
-    if (element == null) {
-      element = new Element.tag(elementTagName);
-    }
-  }
+  MatchingPage(this.path, app) : super(app);
 
   void _visit(Uri uri) {
     assert(uri != null);
     assert(canVisit(uri));
   }
 
   Future<Isolate> getIsolate(Uri uri) {
     var isolateId = uri.queryParameters['isolateId'];
     return app.vm.getIsolate(isolateId).then((isolate) {
       if (isolate == null) {
         throw new IsolateNotFound(isolateId);
       }
       return isolate;
     });
   }
 
   bool canVisit(Uri uri) => uri.path == path;
 }
 
+/// A [SimplePage] matches a single uri path and displays a single element.
+class SimplePage extends MatchingPage {
+  final String elementTagName;
+  SimplePage(String path, this.elementTagName, app) : super(path, app);
+
+  void onInstall() {
+    if (element == null) {
+      element = new Element.tag(elementTagName);
+    }
+  }
+}
+
 /// Error page for unrecognized paths.
 class ErrorPage extends Page {
   ErrorPage(app) : super(app);
 
   void onInstall() {
     if (element == null) {
       // Lazily create page.
       element = new GeneralErrorElement(app.notifications, queue: app.queue);
     }
   }
@@ skipping 119 matching lines @@
         if (element != null) {
           /// Update the page.
           ObjectStoreViewElement page = element;
           page.objectStore = objectStore;
         }
       });
     });
   }
 }
 
-class CpuProfilerPage extends SimplePage {
-  CpuProfilerPage(app) : super('profiler', 'cpu-profile', app);
+class CpuProfilerPage extends MatchingPage {
+  CpuProfilerPage(app) : super('profiler', app);
+
+  DivElement container = new DivElement();
 
   void _visit(Uri uri) {
     super._visit(uri);
     getIsolate(uri).then((isolate) {
-      if (element != null) {
-        /// Update the page.
-        CpuProfileElement page = element;
-        page.isolate = isolate;
-      }
+      container.children = [
+        new CpuProfileElement(isolate.vm, isolate, app.events,
+                              app.notifications,
+                              _isolateSampleProfileRepository)
+      ];
     });
   }
+
+  void onInstall() {
+    if (element == null) {
+      element = container;
+    }
+    assert(element != null);
+  }
 }
 
 class TableCpuProfilerPage extends SimplePage {
   TableCpuProfilerPage(app)
       : super('profiler-table', 'cpu-profile-table', app);
 
   void _visit(Uri uri) {
     super._visit(uri);
     getIsolate(uri).then((isolate) {
       if (element != null) {
@@ skipping 236 matching lines @@
     assert(element != null);
   }
 
   void _visit(Uri uri) {
     assert(element != null);
     assert(canVisit(uri));
   }
 
   bool canVisit(Uri uri) => uri.path == 'timeline';
 }