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This CL implements custom elements. The design is as follows:
1) Authors subclass Element and call registerElement.
2) When we create C++ elements for custom elements, we call the author's
constructor synchronously.
3) The attach/detach/attributeChanged callbacks are called either:
a) when exiting the current custom element callback scoped (e.g., before
returning from appendChild), or
b) when draining the microtask queue.
The implementation in this CL is a bit fragile because we don't detect name
registration conflicts and we let you create custom elements with the same name
as built-in elements. Also, not every part of the engine is prepared to execute
script synchronously below createElement. We'll need to iron out these issues
over time, but this CL is a start.
R=ojan@chromium.org
Review URL: https://codereview.chromium.org/943013002
25 lines
1.0 KiB
Plaintext
25 lines
1.0 KiB
Plaintext
// Copyright 2015 The Chromium Authors. All rights reserved.
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// Use of this source code is governed by a BSD-style license that can be
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// found in the LICENSE file.
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interface Node : EventTarget {
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Node cloneNode([Named] optional boolean deep = true);
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readonly attribute ParentNode owner;
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readonly attribute ParentNode parentNode;
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readonly attribute Element parentElement;
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readonly attribute Node nextSibling;
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readonly attribute Node previousSibling;
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readonly attribute Element nextElementSibling;
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readonly attribute Element previousElementSibling;
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[CustomElementCallbacks, RaisesException, ImplementedAs=newInsertBefore] void insertBefore(sequence<Node> nodes);
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[CustomElementCallbacks, RaisesException, ImplementedAs=newInsertAfter] void insertAfter(sequence<Node> nodes);
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[CustomElementCallbacks, RaisesException] void replaceWith(sequence<Node> nodes);
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[CustomElementCallbacks, RaisesException] void remove();
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[TreatReturnedNullStringAs=Null, TreatNullAs=NullString] attribute DOMString textContent;
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};
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