LinkToPageLayoutTypeControllerDisplayContext.java

/**
 * 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.layout.type.controller.link.to.page.internal.display.context;

import com.liferay.item.selector.ItemSelector;
import com.liferay.item.selector.ItemSelectorReturnType;
import com.liferay.item.selector.criteria.UUIDItemSelectorReturnType;
import com.liferay.layout.item.selector.criterion.LayoutItemSelectorCriterion;
import com.liferay.layout.type.controller.link.to.page.internal.constants.LinkToPageLayoutTypeControllerWebKeys;
import com.liferay.portal.kernel.language.LanguageUtil;
import com.liferay.portal.kernel.model.Layout;
import com.liferay.portal.kernel.portlet.LiferayPortletRequest;
import com.liferay.portal.kernel.portlet.LiferayPortletResponse;
import com.liferay.portal.kernel.portlet.RequestBackedPortletURLFactoryUtil;
import com.liferay.portal.kernel.service.LayoutLocalServiceUtil;
import com.liferay.portal.kernel.theme.ThemeDisplay;
import com.liferay.portal.kernel.util.GetterUtil;
import com.liferay.portal.kernel.util.HtmlUtil;
import com.liferay.portal.kernel.util.ParamUtil;
import com.liferay.portal.kernel.util.PortalUtil;
import com.liferay.portal.kernel.util.StringBundler;
import com.liferay.portal.kernel.util.StringPool;
import com.liferay.portal.kernel.util.WebKeys;

import java.util.ArrayList;
import java.util.Collections;
import java.util.List;
import java.util.Locale;

import javax.portlet.PortletURL;

import javax.servlet.http.HttpServletRequest;

/**
 * @author Pavel Savinov
 */
public class LinkToPageLayoutTypeControllerDisplayContext {

	public LinkToPageLayoutTypeControllerDisplayContext(
		LiferayPortletRequest liferayPortletRequest,
		LiferayPortletResponse liferayPortletResponse) {

		_liferayPortletRequest = liferayPortletRequest;
		_liferayPortletResponse = liferayPortletResponse;

		_setSelectedLayout();
	}

	public String getEventName() {
		String eventName =
			_liferayPortletResponse.getNamespace() + "selectLinkToPage";

		return eventName;
	}

	public String getItemSelectorURL() throws Exception {
		ItemSelector itemSelector =
			(ItemSelector)_liferayPortletRequest.getAttribute(
				LinkToPageLayoutTypeControllerWebKeys.ITEM_SELECTOR);

		LayoutItemSelectorCriterion layoutItemSelectorCriterion =
			new LayoutItemSelectorCriterion();

		layoutItemSelectorCriterion.setCheckDisplayPage(false);
		layoutItemSelectorCriterion.setEnableCurrentPage(false);

		long selPlid = ParamUtil.getLong(_liferayPortletRequest, "selPlid");

		boolean privateLayout = ParamUtil.getBoolean(
			_liferayPortletRequest, "privateLayout");

		layoutItemSelectorCriterion.setShowPrivatePages(privateLayout);
		layoutItemSelectorCriterion.setShowPublicPages(!privateLayout);

		List<ItemSelectorReturnType> desiredItemSelectorReturnTypes =
			new ArrayList<>();

		desiredItemSelectorReturnTypes.add(new UUIDItemSelectorReturnType());

		layoutItemSelectorCriterion.setDesiredItemSelectorReturnTypes(
			desiredItemSelectorReturnTypes);

		PortletURL itemSelectorURL = itemSelector.getItemSelectorURL(
			RequestBackedPortletURLFactoryUtil.create(_liferayPortletRequest),
			getEventName(), layoutItemSelectorCriterion);

		itemSelectorURL.setParameter("layoutUuid", getLinkToLayoutUuid());

		itemSelectorURL.setParameter("selPlid", String.valueOf(selPlid));

		return itemSelectorURL.toString();
	}

	public String getLayoutBreadcrumb(Layout layout) throws Exception {
		HttpServletRequest request = PortalUtil.getHttpServletRequest(
			_liferayPortletRequest);

		ThemeDisplay themeDisplay = (ThemeDisplay)request.getAttribute(
			WebKeys.THEME_DISPLAY);

		Locale locale = themeDisplay.getLocale();

		List<Layout> ancestors = layout.getAncestors();

		StringBundler sb = new StringBundler(4 * ancestors.size() + 5);

		if (layout.isPrivateLayout()) {
			sb.append(LanguageUtil.get(request, "private-pages"));
		}
		else {
			sb.append(LanguageUtil.get(request, "public-pages"));
		}

		sb.append(StringPool.SPACE);
		sb.append(StringPool.GREATER_THAN);
		sb.append(StringPool.SPACE);

		Collections.reverse(ancestors);

		for (Layout ancestor : ancestors) {
			sb.append(HtmlUtil.escape(ancestor.getName(locale)));
			sb.append(StringPool.SPACE);
			sb.append(StringPool.GREATER_THAN);
			sb.append(StringPool.SPACE);
		}

		sb.append(HtmlUtil.escape(layout.getName(locale)));

		return sb.toString();
	}

	public String getLinkToLayoutName() throws Exception {
		if (_selectedLayout != null) {
			return getLayoutBreadcrumb(_selectedLayout);
		}

		return StringPool.BLANK;
	}

	public String getLinkToLayoutUuid() {
		if (_selectedLayout != null) {
			return _selectedLayout.getUuid();
		}

		return ParamUtil.getString(_liferayPortletRequest, "layoutUuid");
	}

	private void _setSelectedLayout() {
		Layout layout = (Layout)_liferayPortletRequest.getAttribute(
			WebKeys.SEL_LAYOUT);

		if (layout != null) {
			long linkToLayoutId = GetterUtil.getLong(
				layout.getTypeSettingsProperty("linkToLayoutId"));

			_selectedLayout = LayoutLocalServiceUtil.fetchLayout(
				layout.getGroupId(), layout.isPrivateLayout(), linkToLayoutId);
		}
	}

	private final LiferayPortletRequest _liferayPortletRequest;
	private final LiferayPortletResponse _liferayPortletResponse;
	private Layout _selectedLayout;

}