actionmenubean.java

GridSphere 门户 提供一个基于 portlet 的高级开放源代码门户。GridSphere 是在欧盟提供基金的 GridLab 项目下开发的

package org.gridsphere.provider.portletui.beans;

import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;

import javax.portlet.PortletURL;
import java.util.Iterator;

/*
 * @author <a href="mailto:[e-mail]">Oliver Wehrens</a>
 * @version $Id: ActionMenuBean.java 4496 2006-02-08 20:27:04Z wehrens $
 */

public class ActionMenuBean extends BeanContainer implements TagBean {

    private transient static Log log = LogFactory.getLog(ActionMenuBean.class);

    public final static String TYPE_ACTIONBAR = "actionbar";
    public final static String TYPE_ACTIONTAB = "actiontab";
    // public final static String TYPE_LINKTREE = "linktree";
    // public final static String TYPE_DROPDOWN = "dropdown";
    public final static String MENU_HORIZONTAL = "horizontal";
    public final static String MENU_VERTICAL = "vertical";


    protected String align = MENU_HORIZONTAL;
    protected String title = null;
    private boolean hasParentMenu = false;
    protected String menutype = TYPE_ACTIONBAR;
    protected boolean collapsible = false;
    protected boolean collapsed = false;
    protected PortletURL portletURL = null;

    protected boolean previousWasMenuItem = false;
    protected boolean hasMenuItems = false;
    protected boolean menuDrawn = false;

    public ActionMenuBean() {
        super();
    }

    public ActionMenuBean(String beanId) {
        super();
        this.beanId = beanId;
    }

    public PortletURL getPortletURL() {
        return portletURL;
    }

    public void setPortletURL(PortletURL portletURL) {
        this.portletURL = portletURL;
    }

    public boolean isCollapsible() {
        return collapsible;
    }

    public void setCollapsible(boolean collapsible) {
        this.collapsible = collapsible;
    }

    public boolean isCollapsed() {
        return collapsed;
    }

    public void setCollapsed(boolean collapsed) {
        this.collapsed = collapsed;
    }

    public String getMenutype() {
        return menutype;
    }

    public void setMenutype(String menutype) {
        this.menutype = menutype;
    }

    /**
     * Adds a BaseComponentBean. This can be a bean like a ActionLink, an ActionMenuItemBean wrapper will
     * be created around it.
     *
     * @param bean to add
     */
    public void addMenuEntry(BaseComponentBean bean) {
        ActionMenuItemBean amiBean = new ActionMenuItemBean();
        amiBean.addBean(bean);
        this.addBean(amiBean);

    }

    /**
     * Gets the title of the menu.
     *
     * @return title of the menu
     */
    public String getTitle() {
        return title;
    }

    /**
     * Sets the title of the menu.
     *
     * @param title title of the menu
     */
    public void setTitle(String title) {
        this.title = title;
    }

    /**
     * Gets the alignment of the menu.
     *
     * @return alignment
     */
    public String getAlign() {
        return align;
    }

    /**
     * Sets the alignment of the menu.
     *
     * @param align alignmnet of the menu
     */
    public void setAlign(String align) {
        this.align = align;
    }

    /**
     * Returns true when the parent is another actionmenu.
     *
     * @return true/false if parent is actionmenu.
     */
    public boolean isHasParentMenu() {
        return hasParentMenu;
    }

    /**
     * Defines if parent is another Actionmenu. Is used for different coloring of the labels. Set automatically.
     *
     * @param hasParentMenu true/false
     */
    public void setHasParentMenu(boolean hasParentMenu) {
        this.hasParentMenu = hasParentMenu;
    }

    public String toStartString() {
        //log.debug("toStartString()");
        StringBuffer sb = new StringBuffer();

        //log.debug("menutype=" + menutype);

        if (menutype.equals(TYPE_ACTIONTAB)) {
            //log.debug("hasParentMenu=" + hasParentMenu);
            if (hasParentMenu) {
                //log.debug("Starting Tab Menu");
                sb.append("<div id=\"actiontabmenu\"><ul>");
            } else {
                //log.debug("Starting Tab Pane");
                sb.append("<div id=\"actiontabpane\">");
            }
        } else {
            if (!hasParentMenu) {
                // need a table for limiting the div just to the size of the longest text
                sb.append("<table class=\"portlet-menu\" ");
                sb.append("><tr><td>");
            } else {
                this.cssStyle = "margin-top: 5px;";
            }

//            sb.append("<div " + getFormattedCss() + ">");

            // try to render title if there is one
            if (title != null) {
                sb.append("<div class=\"portlet-menu-caption\">");

                sb.append(title);

                sb.append("</div>");
            }
        }

        return sb.toString();
    }

    public String toEndString() {

        //log.debug("toEndString()");

        StringBuffer sb = new StringBuffer();

        //log.debug("menutype=" + menutype);

        if (menutype.equals(TYPE_ACTIONTAB)) {

            //log.debug("hasParentMenu=" + hasParentMenu);

            // Iterate through child beans
            Iterator it = container.iterator();
            while (it.hasNext()) {
                BaseComponentBean bean = (BaseComponentBean) it.next();
                if (bean instanceof ActionMenuItemBean) {
                    ActionMenuItemBean itemBean = (ActionMenuItemBean) bean;
                    itemBean.setAlign(align);
                    itemBean.setMenutype(menutype);
                } else if (bean instanceof ActionMenuBean) {
                    ActionMenuBean menuBean = (ActionMenuBean) bean;
                    menuBean.setAlign(align);
                    menuBean.setMenutype(menutype);
                    menuBean.setHasParentMenu(true);
                }
                sb.append(bean.toStartString());
                sb.append(bean.toEndString());
            }

            if (hasParentMenu) {
                //log.debug("Ending Tab Menu");
                sb.append("</ul><span id=\"actiontabclear\"></span></div>");
            } else {
                //log.debug("Ending Tab Pane");
                sb.append("</div>");
            }
        } else {
            if (!this.isCollapsed()) {

                Iterator it = container.iterator();
                while (it.hasNext()) {
                    BaseComponentBean bean = (BaseComponentBean) it.next();
                    if (bean instanceof ActionMenuItemBean) {
                        ActionMenuItemBean itemBean = (ActionMenuItemBean) bean;
                        // if child is actionitem set these values on them, needed for correct rendering
                        itemBean.setAlign(this.align);
                        itemBean.setMenutype(this.menutype);
                    }
                    sb.append(bean.toStartString());
                    sb.append(bean.toEndString());
                }
            }

//            sb.append("</div>");
            if (hasParentMenu) {
                sb.append("<span id=\"actiontabclear\"></span></div>");
            } else {
                sb.append("</td></tr></table>");
            }
        }

        return sb.toString();
    }
}