List scripts in library and display script source

runtime/bin/vmservice/client/lib/src/observatory/script_source.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 observatory;
+
+class ScriptSourceLine extends Observable {
+  final int line;
+  final int numDigits;
+  @observable final String src;
+  @observable String paddedLine;
+  ScriptSourceLine(this.line, this.numDigits, this.src) {
+    paddedLine = '$line';
+    for (int i = paddedLine.length; i < numDigits; i++) {
+      paddedLine = ' $paddedLine';
+    }
+  }
+}
+
+class ScriptSource extends Observable {
+  @observable String kind = '';
+  @observable String url = '';
+  @observable List<ScriptSourceLine> lines = toObservable([]);
+
+  ScriptSource(Map response) {
+    kind = response['kind'];
+    url = response['name'];
+    buildSourceLines(response['source']);
+  }
+
+  void buildSourceLines(String src) {
+    List<String> splitSrc = src.split('\n');
+    int numDigits = '${splitSrc.length+1}'.length;
+    for (int i = 0; i < splitSrc.length; i++) {
+      ScriptSourceLine sourceLine = new ScriptSourceLine(i+1, numDigits,
+                                                         splitSrc[i]);
+      lines.add(sourceLine);
+    }
+  }
+
+  String toString() => 'ScriptSource';
+}