com.liferay.portal.kernel.portlet.LiferayWindowState.java Source code

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Here is the source code for com.liferay.portal.kernel.portlet.LiferayWindowState.java

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/**
 * Copyright (c) 2000-present Liferay, Inc. All rights reserved.
 *
 * This library is free software; you can redistribute it and/or modify it under
 * the terms of the GNU Lesser General Public License as published by the Free
 * Software Foundation; either version 2.1 of the License, or (at your option)
 * any later version.
 *
 * This library is distributed in the hope that it will be useful, but WITHOUT
 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
 * FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License for more
 * details.
 */

package com.liferay.portal.kernel.portlet;

import com.liferay.portal.kernel.util.WebKeys;

import javax.portlet.WindowState;

import javax.servlet.http.HttpServletRequest;

/**
 * @author Brian Wing Shun Chan
 * @author Zsolt Balogh
 */
public class LiferayWindowState extends WindowState {

    public static final WindowState EXCLUSIVE = new WindowState("exclusive");

    public static final WindowState POP_UP = new WindowState("pop_up");

    public static boolean isExclusive(HttpServletRequest httpServletRequest) {
        String state = _getWindowState(httpServletRequest);

        if ((state != null) && state.equals(EXCLUSIVE.toString())) {
            return true;
        }

        return false;
    }

    public static boolean isMaximized(HttpServletRequest httpServletRequest) {
        String state = _getWindowState(httpServletRequest);

        if ((state != null) && state.equals(WindowState.MAXIMIZED.toString())) {
            return true;
        }

        return false;
    }

    public static boolean isPopUp(HttpServletRequest httpServletRequest) {
        String state = _getWindowState(httpServletRequest);

        if ((state != null) && state.equals(POP_UP.toString())) {
            return true;
        }

        return false;
    }

    public static boolean isWindowStatePreserved(WindowState oldWindowState, WindowState newWindowState) {

        // Changes to EXCLUSIVE are always preserved

        if ((newWindowState != null) && newWindowState.equals(LiferayWindowState.EXCLUSIVE)) {

            return true;
        }

        // Some window states are automatically preserved

        if ((oldWindowState != null) && oldWindowState.equals(LiferayWindowState.POP_UP)) {

            return false;
        }

        return true;
    }

    public LiferayWindowState(String name) {
        super(name);
    }

    private static String _getWindowState(HttpServletRequest httpServletRequest) {

        WindowState windowState = (WindowState) httpServletRequest.getAttribute(WebKeys.WINDOW_STATE);

        if (windowState != null) {
            return windowState.toString();
        }

        return httpServletRequest.getParameter("p_p_state");
    }

}