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/*
 * Copyright 2013 serso aka se.solovyev
 *
 * 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.
 *
 * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
 * Contact details
 *
 * Email: [email protected]
 * Site:  http://se.solovyev.org
 */

package org.solovyev.android.keyboard;

import android.content.Context;
import android.os.Build;
import android.text.ClipboardManager;
import android.view.inputmethod.InputConnection;
import org.solovyev.common.text.Strings;

import javax.annotation.Nonnull;

/**
 * User: serso
 * Date: 11/5/12
 * Time: 1:12 PM
 */
public final class AndroidKeyboardUtils {

	private AndroidKeyboardUtils() {
		throw new AssertionError();
	}

	public static void copyWholeTextFromInputConnection(@Nonnull InputConnection ic, @Nonnull Context context) {
		String text = getTextFromInputConnection(ic);

		if (!Strings.isEmpty(text)) {
			final ClipboardManager clipboardManager = (ClipboardManager) context.getSystemService(Context.CLIPBOARD_SERVICE);
			clipboardManager.setText(text);
		}
	}

	@Nonnull
	public static String getTextFromInputConnection(@Nonnull InputConnection ic) {
		final CharSequence textAfter = ic.getTextAfterCursor(DefaultKeyboardInput.MAX_INT, 0);
		final CharSequence textBefore = ic.getTextBeforeCursor(DefaultKeyboardInput.MAX_INT, 0);

		String text = "";
		if (textBefore != null) {
			text += textBefore.toString();
		}

		if (textAfter != null) {
			text += textAfter.toString();
		}

		return text;
	}

	static void copyTextFromInputConnection(@Nonnull InputConnection ic, @Nonnull Context context) {
		if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.GINGERBREAD) {
			CharSequence text = ic.getSelectedText(0);
			if (!Strings.isEmpty(text)) {
				final ClipboardManager clipboardManager = (ClipboardManager) context.getSystemService(Context.CLIPBOARD_SERVICE);
				clipboardManager.setText(text);
			} else {
				copyWholeTextFromInputConnection(ic, context);
			}
		} else {
			copyWholeTextFromInputConnection(ic, context);
		}

	}
}