Extract interfaces and members renaming logic to a new HtmlRenamer class.

lib/dom/scripts/htmlrenamer.py

Index: lib/dom/scripts/htmlrenamer.py
diff --git a/lib/dom/scripts/htmlrenamer.py b/lib/dom/scripts/htmlrenamer.py
new file mode 100644
index 0000000000000000000000000000000000000000..6a8d85db3ee9a6767f62f4f0d67e15ee7fad34b7
--- /dev/null
+++ b/lib/dom/scripts/htmlrenamer.py
@@ -0,0 +1,312 @@
+#!/usr/bin/python
+# Copyright (c) 2012, 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.
+
+_html_strip_webkit_prefix_classes = [
+    'Animation',
+    'AnimationEvent',
+    'AnimationList',
+    'BlobBuilder',
+    'CSSKeyframeRule',
+    'CSSKeyframesRule',
+    'CSSMatrix',
+    'CSSTransformValue',
+    'Flags',
+    'LoseContext',
+    'Point',
+    'TransitionEvent']
+
+# Members from the standard dom that should not be exposed publicly in dart:html
+# but need to be exposed internally to implement dart:html on top of a standard
+# browser.
+_private_html_members = set([
+  'Document.createElement',
+  'Document.createElementNS',
+  'Document.createEvent',
+  'Document.createTextNode',
+  'Document.createTouchList',
+  'Document.getElementById',
+  'Document.getElementsByClassName',
+  'Document.getElementsByName',
+  'Document.getElementsByTagName',
+  'Document.querySelector',
+  'Document.querySelectorAll',
+  'DocumentFragment.querySelector',
+  'DocumentFragment.querySelectorAll',
+  'Element.childElementCount',
+  'Element.children',
+  'Element.className',
+  'Element.clientHeight',
+  'Element.clientLeft',
+  'Element.clientTop',
+  'Element.clientWidth',
+  'Element.firstElementChild',
+  'Element.getAttribute',
+  'Element.getBoundingClientRect',
+  'Element.getClientRects',
+  'Element.getElementsByClassName',
+  'Element.getElementsByTagName',
+  'Element.hasAttribute',
+  'Element.lastElementChild',
+  'Element.offsetHeight',
+  'Element.offsetLeft',
+  'Element.offsetTop',
+  'Element.offsetWidth',
+  'Element.querySelector',
+  'Element.querySelectorAll',
+  'Element.removeAttribute',
+  'Element.scrollHeight',
+  'Element.scrollLeft',
+  'Element.scrollTop',
+  'Element.scrollWidth',
+  'Element.setAttribute',
+  'Event.initEvent',
+  'EventTarget.addEventListener',
+  'EventTarget.dispatchEvent',
+  'EventTarget.removeEventListener',
+  'MouseEvent.initMouseEvent',
+  'Node.appendChild',
+  'Node.attributes',
+  'Node.childNodes',
+  'Node.firstChild',
+  'Node.lastChild',
+  "Node.nodeType",
+  'Node.removeChild',
+  'Node.replaceChild',
+  'Storage.length',
+  'Storage.clear',
+  'Storage.getItem',
+  'Storage.key',
+  'Storage.removeItem',
+  'Storage.setItem',
+  'Window.getComputedStyle',
+])
+
+# Members from the standard dom that exist in the dart:html library with
+# identical functionality but with cleaner names.
+_renamed_html_members = {
+    'Document.defaultView': 'window',
+    'Element.webkitMatchesSelector' : 'matchesSelector',
+    'Element.scrollIntoViewIfNeeded': 'scrollIntoView',
+    'Node.cloneNode': 'clone',
+    'Node.nextSibling': 'nextNode',
+    'Node.ownerDocument': 'document',
+    'Node.parentNode': 'parent',
+    'Node.previousSibling': 'previousNode',
+    'Node.textContent': 'text',
+    'SVGElement.className': '$dom_svgClassName',
+    'SVGAnimatedString.className': '$dom_svgClassName',
+    'SVGStylable.className': '$dom_svgClassName',
+}
+
+# Members and classes from the dom that should be removed completelly from
+# dart:html.  These could be expressed in the IDL instead but expressing this
+# as a simple table instead is more concise.
+# Syntax is: ClassName.(get\.|set\.)?MemberName
+# Using get: and set: is optional and should only be used when a getter needs
+# to be suppressed but not the setter, etc.
+# TODO(jacobr): cleanup and augment this list.
+_removed_html_members = set([
+    'NodeList.item',
+    "Attr.*",
+#    "BarProp.*",
+#    "BarInfo.*",
+#    "Blob.webkitSlice",
+#    "CDATASection.*",
+#    "Comment.*",
+#    "DOMImplementation.*",
+    "Document.get:forms",
+#    "Document.get:selectedStylesheetSet",
+#    "Document.set:selectedStylesheetSet",
+#    "Document.get:preferredStylesheetSet",
+    "Document.get:links",
+    "Document.set:domain",
+    "Document.get:implementation",
+    "Document.createAttributeNS",
+    "Document.get:inputEncoding",
+    "Document.get:height",
+    "Document.get:width",
+    "Element.getElementsByTagNameNS",
+    "Document.get:compatMode",
+    "Document.importNode",
+    "Document.evaluate",
+    "Document.get:images",
+    "Document.createExpression",
+    "Document.getOverrideStyle",
+    "Document.xmlStandalone",
+    "Document.createComment",
+    "Document.adoptNode",
+    "Document.get:characterSet",
+    "Document.createAttribute",
+    "Document.get:URL",
+    "Document.createEntityReference",
+    "Document.get:documentURI",
+    "Document.set:documentURI",
+    "Document.createNodeIterator",
+    "Document.createProcessingInstruction",
+    "Document.get:doctype",
+    "Document.createTreeWalker",
+    "Document.location",
+    "Document.createNSResolver",
+    "Document.get:xmlEncoding",
+    "Document.get:defaultCharset",
+    "Document.get:applets",
+    "Document.getSelection",
+    "Document.xmlVersion",
+    "Document.get:anchors",
+    "Document.getElementsByTagNameNS",
+    "DocumentType.*",
+    "Element.hasAttributeNS",
+    "Element.getAttributeNS",
+    "Element.setAttributeNode",
+    "Element.getAttributeNode",
+    "Element.removeAttributeNode",
+    "Element.removeAttributeNS",
+    "Element.setAttributeNodeNS",
+    "Element.getAttributeNodeNS",
+    "Element.setAttributeNS",
+    "BodyElement.text",
+    "AnchorElement.text",
+    "OptionElement.text",
+    "ScriptElement.text",
+    "TitleElement.text",
+#    "EventSource.get:url",
+# TODO(jacobr): should these be removed?
+    "Document.close",
+    "Document.hasFocus",
+
+    "Document.vlinkColor",
+    "Document.captureEvents",
+    "Document.releaseEvents",
+    "Document.get:compatMode",
+    "Document.designMode",
+    "Document.dir",
+    "Document.all",
+    "Document.write",
+    "Document.fgColor",
+    "Document.bgColor",
+    "Document.get:plugins",
+    "Document.alinkColor",
+    "Document.get:embeds",
+    "Document.open",
+    "Document.clear",
+    "Document.get:scripts",
+    "Document.writeln",
+    "Document.linkColor",
+    "Element.get:itemRef",
+    "Element.outerText",
+    "Element.accessKey",
+    "Element.get:itemType",
+    "Element.innerText",
+    "Element.set:outerHTML",
+    "Element.itemScope",
+    "Element.itemValue",
+    "Element.itemId",
+    "Element.get:itemProp",
+    'Element.scrollIntoView',
+    'Element.get:classList',
+    "EmbedElement.getSVGDocument",
+    "FormElement.get:elements",
+    "HTMLFrameElement.*",
+    "HTMLFrameSetElement.*",
+    "HtmlElement.version",
+    "HtmlElement.manifest",
+    "Document.version",
+    "Document.manifest",
+#    "IFrameElement.getSVGDocument",  #TODO(jacobr): should this be removed
+    "InputElement.dirName",
+    "HTMLIsIndexElement.*",
+    "ObjectElement.getSVGDocument",
+    "HTMLOptionsCollection.*",
+    "HTMLPropertiesCollection.*",
+    "SelectElement.remove",
+    "TextAreaElement.dirName",
+    "NamedNodeMap.*",
+    "Node.isEqualNode",
+    "Node.get:TEXT_NODE",
+    "Node.hasAttributes",
+    "Node.get:DOCUMENT_TYPE_NODE",
+    "Node.get:DOCUMENT_POSITION_FOLLOWING",
+    "Node.lookupNamespaceURI",
+    "Node.get:ELEMENT_NODE",
+    "Node.get:namespaceURI",
+    "Node.get:DOCUMENT_FRAGMENT_NODE",
+    "Node.get:localName",
+    "Node.isDefaultNamespace",
+    "Node.compareDocumentPosition",
+    "Node.get:baseURI",
+    "Node.isSameNode",
+    "Node.get:DOCUMENT_POSITION_DISCONNECTED",
+    "Node.get:DOCUMENT_NODE",
+    "Node.get:DOCUMENT_POSITION_CONTAINS",
+    "Node.get:COMMENT_NODE",
+    "Node.get:ENTITY_REFERENCE_NODE",
+    "Node.isSupported",
+    "Node.get:DOCUMENT_POSITION_IMPLEMENTATION_SPECIFIC",
+    "Node.get:NOTATION_NODE",
+    "Node.normalize",
+    "Node.get:parentElement",
+    "Node.get:ATTRIBUTE_NODE",
+    "Node.get:ENTITY_NODE",
+    "Node.get:DOCUMENT_POSITION_CONTAINED_BY",
+    "Node.get:prefix",
+    "Node.set:prefix",
+    "Node.get:DOCUMENT_POSITION_PRECEDING",
+    "Node.get:nodeValue",
+    "Node.set:nodeValue",
+    "Node.get:CDATA_SECTION_NODE",
+    "Node.get:nodeName",
+    "Node.lookupPrefix",
+    "Node.get:PROCESSING_INSTRUCTION_NODE",
+    "IFrameElement.get:contentDocument",
+    "Window.get:frameElement",
+    ])
+
+class HtmlRenamer(object):
+  def __init__(self, database):
+    self._database = database
+
+  def RenameInterface(self, interface):
+    if interface.id.startswith('HTML'):
+      def IsElementOrDocument(interface):
+        return interface.id in ['Element', 'Document']
+      if self._database.FindInHierarchy(interface, IsElementOrDocument):
+        return interface.id[4:]
+    elif interface.id.startswith('WebKit'):
+      if interface.id[6:] in _html_strip_webkit_prefix_classes:

[Anton Muhin, 2012/07/16 10:27:04]

[len('WebKit'):] instead 6?  Overall, it might be time to introduce helper
functions to strip prefix and suffix.

[podivilov, 2012/07/16 12:08:36]

Done.
Personally, I don't feel like introducing helpers would make this code better.

+        return interface.id[6:]
+    elif interface.id == 'DOMWindow':
+      return 'Window'
+    return interface.id
+
+  def RenameMember(self, interface_name, member, member_prefix=''):
+    """
+    Returns the name of the member in the HTML library or None if the member is
+    suppressed in the HTML library
+    """
+    interface = self._database.GetInterface(interface_name)
+
+    if self._FindMatch(interface, member, member_prefix, _removed_html_members):
+      return None
+
+    name = self._FindMatch(interface, member, member_prefix,
+                           _renamed_html_members)
+    target_name = _renamed_html_members[name] if name else member
+    if self._FindMatch(interface, member, member_prefix, _private_html_members):
+      if not target_name.startswith('$dom_'):  # e.g. $dom_svgClassName
+        target_name = '$dom_' + target_name
+    return target_name
+
+  def _FindMatch(self, interface, member, member_prefix, candidates):
+    def Test(interface):
+      html_interface_name = self.RenameInterface(interface)
+      name = html_interface_name + '.' + member
+      if name in candidates:
+        return name
+      name = html_interface_name + '.' + member_prefix + member
+      if name in candidates:
+        return name
+    matched_interface = self._database.FindInHierarchy(interface, Test)
+    if matched_interface:
+      return Test(matched_interface)