Add CustomElementState for Custom Elements v1

third_party/WebKit/Source/core/dom/Node.cpp

 /*
  * Copyright (C) 1999 Lars Knoll (knoll@kde.org)
  *           (C) 1999 Antti Koivisto (koivisto@kde.org)
  *           (C) 2001 Dirk Mueller (mueller@kde.org)
  * Copyright (C) 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011 Apple Inc. All rights reserved.
  * Copyright (C) 2008 Nokia Corporation and/or its subsidiary(-ies)
  * Copyright (C) 2009 Torch Mobile Inc. All rights reserved. (http://www.torchmobile.com/)
  *
  * This library is free software; you can redistribute it and/or
  * modify it under the terms of the GNU Library General Public
@@ skipping 2285 matching lines @@
     DCHECK(isUserActionElement());
     return document().userActionElements().isHovered(this);
 }
 
 bool Node::isUserActionElementFocused() const
 {
     DCHECK(isUserActionElement());
     return document().userActionElements().isFocused(this);
 }
 
+void Node::setCustomElementState(CustomElementState newState)
+{
+    CustomElementState oldState = getCustomElementState();
+
+    switch (newState) {
+    case CustomElementState::Uncustomized:
+        NOTREACHED(); // Everything starts in this state
+        return;
+
+    case CustomElementState::Undefined:
+        DCHECK(CustomElementState::Uncustomized == oldState);
+        break;
+
+    case CustomElementState::Customized:
+        DCHECK(CustomElementState::Undefined == oldState);

[dominicc (has gone to gerrit), 2016/05/18 07:56:21]

When upgrading, don't you go from undefined -> customized?

[kojii, 2016/05/18 08:32:15]

Do you mean uncustomized -> customized?

From create an element https://dom.spec.whatwg.org/#concept-create-element
* If an element has a valid custom element name or has "is" attribute, it must
be set to "undefined" on its creation (7.3)
* If it's already defined, Construct (6.1.2) should set to "undefined" (7.3) and
then to "custom" (6.1.11)
so there should be no direct path from uncustomized -> customized IIUC, no?

+        break;
+    }
+
+    DCHECK(isHTMLElement());
+    DCHECK(V0Upgraded != getV0CustomElementState());
+
+    setFlag(CustomElementFlag);
+    if (newState == CustomElementState::Customized)
+        setFlag(CustomElementCustomizedFlag);
+    DCHECK(newState == getCustomElementState());
+
+    // TODO(kojii): Should fire pseudoStateChanged() when :defined selector is
+    // ready.
+    // toElement(this)->pseudoStateChanged(CSSSelector::PseudoDefined);
+}
+
 void Node::setV0CustomElementState(V0CustomElementState newState)
 {
     V0CustomElementState oldState = getV0CustomElementState();
 
     switch (newState) {
     case V0NotCustomElement:
         ASSERT_NOT_REACHED(); // Everything starts in this state
         return;
 
     case V0WaitingForUpgrade:
         DCHECK_EQ(V0NotCustomElement, oldState);
         break;
 
     case V0Upgraded:
         DCHECK_EQ(V0WaitingForUpgrade, oldState);
         break;
     }
 
     DCHECK(isHTMLElement() || isSVGElement());
+    DCHECK(CustomElementState::Customized != getCustomElementState());
     setFlag(V0CustomElementFlag);
     setFlag(newState == V0Upgraded, V0CustomElementUpgradedFlag);
 
     if (oldState == V0NotCustomElement || newState == V0Upgraded)
         toElement(this)->pseudoStateChanged(CSSSelector::PseudoUnresolved);
 }
 
 void Node::updateAssignmentForInsertedInto(ContainerNode* insertionPoint)
 {
     if (isShadowHost(insertionPoint)) {
@@ skipping 89 matching lines @@
 
 void showNodePath(const blink::Node* node)
 {
     if (node)
         node->showNodePathForThis();
     else
         fprintf(stderr, "Cannot showNodePath for (nil)\n");
 }
 
 #endif