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/*******************************************************************************
 * Copyright 2011 See AUTHORS file.
 * 
 * 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.badlogic.gdx.scenes.scene2d.ui.utils;

import com.badlogic.gdx.Application.ApplicationType;
import com.badlogic.gdx.Gdx;
import com.badlogic.gdx.utils.GdxRuntimeException;

/** A very simple clipboard interface for text content.
 * @author mzechner */
public abstract class Clipboard {
	/** gets the current content of the clipboard if it contains text
	 * @return the clipboard content or null */
	public abstract String getContents ();

	/** Sets the content of the system clipboard.
	 * @param content the content */
	public abstract void setContents (String content);

	public static Clipboard getDefaultClipboard () {
		if (Gdx.app.getType() == ApplicationType.Android)
			return new AndroidClipboard();
		else {
			try {
				return (Clipboard)Class.forName("com.badlogic.gdx.scenes.scene2d.ui.utils.DesktopClipboard").newInstance();
			} catch (Exception e) {
				throw new GdxRuntimeException("Couldn't instantiate desktop clipboard", e);
			}
		}
	}
}