Java tutorial
///////////////////////////////////////////////////////////////////////////// // // Project ProjectForge Community Edition // www.projectforge.org // // Copyright (C) 2001-2013 Kai Reinhard (k.reinhard@micromata.de) // // ProjectForge is dual-licensed. // // This community edition is free software; you can redistribute it and/or // modify it under the terms of the GNU General Public License as published // by the Free Software Foundation; version 3 of the License. // // This community edition 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 General // Public License for more details. // // You should have received a copy of the GNU General Public License along // with this program; if not, see http://www.gnu.org/licenses/. // ///////////////////////////////////////////////////////////////////////////// package org.projectforge.web.wicket.flowlayout; import java.io.Serializable; import org.apache.wicket.AttributeModifier; import org.apache.wicket.Component; import org.apache.wicket.ajax.AjaxEventBehavior; import org.apache.wicket.ajax.AjaxRequestTarget; import org.apache.wicket.behavior.AttributeAppender; import org.apache.wicket.markup.html.WebMarkupContainer; import org.apache.wicket.markup.html.panel.Panel; import org.apache.wicket.model.IModel; import org.apache.wicket.model.Model; import org.apache.wicket.request.cycle.RequestCycle; import org.projectforge.web.CSSColor; import org.projectforge.web.wicket.WicketUtils; /** * Represents an icon. Supports Ajax onclick behavior if {@link #enableAjaxOnClick()} is called. * @author Kai Reinhard (k.reinhard@micromata.de) * */ public class IconPanel extends Panel { private static final long serialVersionUID = 3317775585548133768L; private final WebMarkupContainer div; private CSSColor color; private IModel<String> tooltipTitle; private IModel<String> tooltipText; /** * Get default color of icon type (if defined). E. g. red for {@link IconType#DENY}. */ public static CSSColor getColor(final IconType type) { if (type == null) { return null; } if (type.isIn(IconType.REMOVE_SIGN, IconType.DENY) == true) { return CSSColor.RED; } if (type.isIn(IconType.ACCEPT, IconType.PLUS_SIGN) == true) { return CSSColor.GREEN; } return null; } public IconPanel(final String id, final IconType type) { this(id, type, (String) null); } public IconPanel(final String id, final IconType type, final String tooltip) { this(id, type, Model.of(tooltip)); } public IconPanel(final String id, final IconType type, final IModel<String> tooltip) { this(id, type, null, tooltip); } public IconPanel(final String id, final IconType type, final IModel<String> title, final IModel<String> tooltip) { super(id); div = new WebMarkupContainer("div"); add(div); appendAttribute("class", type.getClassAttrValue()); this.tooltipTitle = title; this.tooltipText = tooltip; this.color = getColor(type); } public IconPanel setTooltip(final IModel<String> tooltip) { this.tooltipText = tooltip; return this; } public IconPanel setTooltip(final IModel<String> title, final IModel<String> tooltip) { this.tooltipTitle = title; this.tooltipText = tooltip; return this; } /** * @param color the color to set * @return this for chaining. */ public IconPanel setColor(final CSSColor color) { this.color = color; return this; } /** * Enable Ajax onclick event. If clicked by the user {@link #onClick()} is called. */ @SuppressWarnings("serial") public IconPanel enableAjaxOnClick() { appendAttribute("style", "cursor: pointer;"); final AjaxEventBehavior behavior = new AjaxEventBehavior("onClick") { @Override protected void onEvent(final AjaxRequestTarget target) { IconPanel.this.onClick(); } }; div.add(behavior); return this; } /** * Appends attribute onclick and changes the cursor to pointer. * @return */ public IconPanel setOnClick(final String onclick) { appendAttribute("style", "cursor: pointer;"); appendAttribute("onclick", onclick); return this; } /** * Appends attribute onclick and changes the cursor to pointer. onclick results in location.href. * @param location url to go on click. * @param newWindow If true then a new browser with the given url is opened. * @return */ public IconPanel setOnClickLocation(final RequestCycle requestCycle, final String location, final boolean newWindow) { appendAttribute("style", "cursor: pointer;"); final String url = WicketUtils.getUrl(requestCycle, location, false); if (newWindow == true) { appendAttribute("onclick", "window.open('" + url + "'); return false;"); } else { appendAttribute("onclick", "location.href='" + url + "';"); } return this; } /** * @see org.apache.wicket.Component#setMarkupId(java.lang.String) */ @Override public Component setMarkupId(final String markupId) { div.setOutputMarkupId(true); return div.setMarkupId(markupId); } /** * @return the div */ public WebMarkupContainer getDiv() { return div; } /** * * @param attributeName * @param value * @return this for chaining. * @see AttributeModifier#append(String, java.io.Serializable) */ public IconPanel appendAttribute(final String attributeName, final Serializable value) { div.add(AttributeModifier.append(attributeName, value)); return this; } /** * Don't forget to call {@link #enableAjaxOnClick()}. */ public void onClick() { } /** * @see org.apache.wicket.Component#onInitialize() */ @Override protected void onInitialize() { if (this.color != null) { div.add(AttributeAppender.append("class", this.color.getCssClass())); } if (tooltipText != null) { WicketUtils.addTooltip(div, tooltipTitle, tooltipText); } super.onInitialize(); } }