com.google.gwt.dom.client.Text.java Source code

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Here is the source code for com.google.gwt.dom.client.Text.java

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/*
 * Copyright 2008 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.dom.client;

import com.google.common.base.Preconditions;

import cc.alcina.framework.common.client.util.Ax;

/**
 * The Text interface represents textual content.
 */
public class Text extends Node implements DomText {
    /**
     * Assert that the given {@link Node} is of type {@link Node#TEXT_NODE} and
     * automatically typecast it.
     */
    public static Text as(Node node) {
        assert node.getNodeType() == Node.TEXT_NODE;
        return (Text) node;
    }

    private TextLocal local;

    private DomText remote;

    protected Text(TextLocal local) {
        this.local = local;
        this.remote = TextNull.INSTANCE;
    }

    @Override
    public Text cast() {
        return this;
    }

    @Override
    public void deleteData(int offset, int length) {
        local().deleteData(offset, length);
        remote().deleteData(offset, length);
    }

    @Override
    public String getData() {
        return local().getData();
    }

    @Override
    public int getLength() {
        return local().getLength();
    }

    public TextImplAccess implAccess() {
        return new TextImplAccess();
    }

    @Override
    public void insertData(int offset, String data) {
        ensureRemoteCheck();
        local().insertData(offset, data);
        remote().insertData(offset, data);
    }

    @Override
    public Node nodeFor() {
        return this;
    }

    @Override
    public void replaceData(int offset, int length, String data) {
        ensureRemoteCheck();
        local().replaceData(offset, length, data);
        remote().replaceData(offset, length, data);
    }

    @Override
    public void setData(String data) {
        ensureRemoteCheck();
        local().setData(data);
        remote().setData(data);
    }

    @Override
    public Text splitText(int offset) {
        throw new UnsupportedOperationException();
        // // FIXME - remote must use created text no9de
        // Text result = local().splitText(offset);
        // remote().splitText(offset);
        // return result;
    }

    @Override
    public String toString() {
        return Ax.format("#TEXT[%s]", local().getData());
    }

    @Override
    protected boolean linkedToRemote() {
        return remote != TextNull.INSTANCE;
    }

    @Override
    protected TextLocal local() {
        return local;
    }

    @Override
    protected void putRemote(NodeRemote remote, boolean resolved) {
        Preconditions.checkState(wasResolved() == resolved);
        this.remote = (DomText) remote;
    }

    @Override
    protected DomText remote() {
        return remote;
    }

    @Override
    protected void resetRemote0() {
        this.remote = TextNull.INSTANCE;
    }

    @Override
    protected TextRemote typedRemote() {
        return (TextRemote) remote();
    }

    public class TextImplAccess {
        public TextRemote ensureRemote() {
            ensureRemoteCheck();
            return Text.this.typedRemote();
        }

        public TextRemote typedRemote() {
            return Text.this.typedRemote();
        }
    }
}