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/*
* Copyright 2011 Google Inc.
*
* Licensed under the Apache License, Version 2.0 (the "License"); you may not
* use this file except in compliance with the License. You may obtain a copy of
* the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
* License for the specific language governing permissions and limitations under
* the License.
*/
package com.google.gwt.user.client.ui;
import com.google.gwt.dom.client.Element;
import com.google.gwt.safehtml.shared.SafeHtml;
import com.google.gwt.safehtml.shared.SafeHtmlBuilder;
/**
* An interface for UI elements that can be built by first generating a piece
* of HTML and afterwards wrapping a root widget.
*
* This interface is very experimental and in active development, so the exact
* API is likely to change. Very likely. In fact, it will definitely change.
* You've been warned.
*/
public interface IsRenderable {
/**
* Replace the previous contents of the receiver with the given element,
* presumed to have been created and stamped via a previous call to
* {@link #render}.
*/
void claimElement(Element element);
/**
* Perform any initialization needed when the widget is not attached to
* the document. Assumed to be called after {@link #claimElement}.
*/
void initializeClaimedElement();
/**
* @see #render(RendearbleStamper, SafeHtmlBuilder)
* TODO(rdcastro): Remove this once UiBinder doesn't rely on it anymore.
*/
SafeHtml render(RenderableStamper stamper);
/**
* Tells this object to render itself as HTML and append it to the given builder.
* If the implementation expects to be able to claim an element later, it must be
* marked by the given stamper.
*/
void render(RenderableStamper stamper, SafeHtmlBuilder builder);
}