NOT FOR LANDING: Thread the needle through all webmodules.

third_party/WebKit/fake_gen/web/api/element.h

+// Copyright 2014 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.
+
+// This file has been auto-generated by code_generator_web_module.py.
+// DO NOT MODIFY!
+
+// This file has been generated from the Jinja2 template in
+// third_party/WebKit/Source/bindings/templates/web_module_interface.h.tmpl
+
+// clang-format off
+
+#ifndef WEB_API_ELEMENT_H
+#define WEB_API_ELEMENT_H
+
+#include "core/dom/Element.h"
+#include "web/api/Node.h"
+
+namespace web {
+namespace api {

[dglazkov, 2016/12/22 16:36:13]

Should this be just web::Element? I feel like I am getting to fancy with
namespaces here. I could even go with blink::WebElement, but the "Web" prefix
looks like a namespace :)

[haraken, 2016/12/23 15:16:42]

Personally I'd prefer avoiding nested namespaces. web::Element will work.

blink::WebElement would be confusing since we're aiming at replacing existing
WebXXX with web-modules.

+
+class Element : public Node {
+ public:
+  explicit Element(blink::Element* element) : Node(element) {}
+  virtual ~Element() {}
+
+  String GetLocalName() const { return element()->localName(); }
+
+  String GetId() const { return element()->getIdAttribute(); }
+  void SetId(AtomicString id) { element()->setIdAttribute(id); }

[dglazkov, 2016/12/22 16:36:13]

Here, the situation will get funky when the type that's being passed needs to be
unwrapped from blink::Type to web::api::Type. The concept that I came up with so
far was a "BFF scheme": each class A that needs to unwrap class B is declared in
class B as a friend.

However, this means that I can't do a one-pass code generation: friendship is
now known until after A is generated, so class B will need to be fixed up with
"friend" declarations on a second pass. That seems to be sucky.

[dglazkov, 2016/12/22 16:39:10]

Correction from web::api::Type to blink::Type (the other way around).

[dglazkov, 2016/12/22 16:44:48]

Correction: friendship is NOT known.

[haraken, 2016/12/23 15:16:42]

Would it be an option to introduce a toBlinkType() method to all web::Type
class? (c.f., we define a toV8() method for blink::Type => v8::Type conversion
and toImpl() for v8::Type => blink::Type conversion.)

+
+ protected:
+  blink::Element* element() const { return blink::toElement(node()); }
+};
+
+}  // namespace api
+}  // namespace web
+
+#endif  // WEB_API_ELEMENT_H