Organize sky/framework a bit

sky/framework/dom-serializer.sky

Index: sky/framework/dom-serializer.sky
diff --git a/sky/framework/dom-serializer.sky b/sky/framework/dom-serializer.sky
deleted file mode 100644
index f63f05841501bfa9ee570763d8cf3664d7df7574..0000000000000000000000000000000000000000
--- a/sky/framework/dom-serializer.sky
+++ /dev/null
@@ -1,99 +0,0 @@
-<!--
-// Copyright 2015 The Chromium Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file.
--->
-<script>
-import "dart:sky";
-
-final kEntityMap = new Map.fromIterable([
-  ['\u00a0', '&nbsp;'],
-  ['&', '&amp;'],
-  ['<', '&lt;'],
-  ['>', '&gt;'],
-  ['"', '&quot;'],
-], key: (item) => item[0], value: (item) => item[1]);
-
-final RegExp kTextEscapePattern = new RegExp(r'&|<|>|"|\u00a0');
-final RegExp kAttributeEscapePattern = new RegExp(r'&|>|"|\u00a0');
-const kIndent = '  ';
-
-String escapeText(String value, RegExp pattern) {
-  if (value == null)
-    value = '';
-  return value.replaceAllMapped(pattern, (Match match) {
-    return kEntityMap[match[0]];
-  });
-}
-
-String serializeAttributes(Element element) {
-  String buffer = '';
-  var attributes = element.getAttributes();
-
-  for (var i = 0; i < attributes.length; ++i) {
-    var attribute = attributes[i];
-    buffer += ' ';
-    buffer += attribute.name;
-    buffer += '="';
-    buffer += escapeText(attribute.value, kAttributeEscapePattern);
-    buffer += '"';
-  }
-
-  return buffer;
-}
-
-Node getFirstChild(Node node) {
-  if (node is HTMLTemplateElement)
-    return node.content.firstChild;
-  return node.firstChild;
-}
-
-Node getLastChild(Node node) {
-  if (node is HTMLTemplateElement)
-    return node.content.lastChild;
-  return node.lastChild;
-}
-
-String serializeChildren(Node node, int depth) {
-  String buffer = '';
-  Node firstChild = getFirstChild(node);
-  Node lastChild = getLastChild(node);
-  if (firstChild is Element && depth != 0)
-    buffer += '\n' + (kIndent * depth);
-  for (Node child = firstChild; child != null; child = child.nextSibling) {
-    buffer += serializeNode(child, depth);
-    if (child is Element && child.nextSibling is Element)
-      buffer += '\n' + (kIndent * depth);
-  }
-  if (lastChild is Element) {
-    buffer += '\n';
-    if (depth != 0)
-      buffer += kIndent * (depth - 1);
-  }
-  return buffer;
-}
-
-String serializeElement(Element element, int depth) {
-  String buffer = '<' + element.tagName + serializeAttributes(element) + '>';
-  buffer += serializeChildren(element, depth + 1);
-  buffer += '</' + element.tagName + '>';
-  return buffer;
-}
-
-String serializeText(Node node) {
-  Node parent = node.parentNode;
-  if (parent != null && (parent is HTMLScriptElement || parent is HTMLStyleElement))
-    return node.data;
-  return escapeText(node.data, kTextEscapePattern);
-}
-
-String serializeNode(Node node, [int depth = 0]) {
-  if (node is Text)
-    return serializeText(node);
-  if (node is Element)
-    return serializeElement(node, depth);
-  if (node is Document || node is ShadowRoot)
-    return serializeChildren(node, depth);
-  throw new Error('Cannot serialize node');
-}
-</script>