com.jain.addon.action.ActionGroup.java Source code

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Here is the source code for com.jain.addon.action.ActionGroup.java

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/* 
 * Copyright 2012 Lokesh Jain.
 * 
 * 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.
 */
package com.jain.addon.action;

import java.util.ArrayList;
import java.util.HashMap;
import java.util.Iterator;
import java.util.List;
import java.util.Map;

import com.jain.addon.JNStyleConstants;
import com.jain.addon.authentication.JNILoginListner;
import com.jain.addon.i18N.I18NHelper;
import com.jain.addon.security.JNISecured;
import com.vaadin.ui.Component;
import com.vaadin.ui.HorizontalLayout;

/**
 * <code>ActionGroup<code> is a horizontal segment component for action group.<br/>
 * @author Lokesh Jain
 * @since December 2, 2012
 * @version 1.1.0
 */
@SuppressWarnings("serial")
public abstract class ActionGroup<T> extends HorizontalLayout implements JNILoginListner {
    protected List<JNAction> actions;
    protected Map<JNAction, String> actionsToName;
    private String firstActionStyle;
    private String lastActionStyle;
    private String actionStyle;
    private JNISecured secured;
    private JNActionGroup actionGroup;
    protected boolean initialized = false;

    /**
     * Create a segment instance having first action, last action and action styles
     * @param secured -- {@link JNISecured}
     * @param firstActionStyle
     * @param lastActionStyle
     * @param actionStyle
     */
    public ActionGroup(JNISecured secured, String firstActionStyle, String lastActionStyle, String actionStyle) {
        this.firstActionStyle = firstActionStyle;
        this.lastActionStyle = lastActionStyle;
        this.actionStyle = actionStyle;
        this.secured = secured;
        this.actions = new ArrayList<JNAction>();
        this.actionsToName = new HashMap<JNAction, String>();
        setStyleName(JNStyleConstants.J_ACTION_BAR);
    }

    /**
     * Method to add actions to the action Group
     * @param action
     * @param actionName
     */
    public void addAction(JNAction action, String actionName) {
        actionsToName.put(action, actionName);
        int position = findPosition(action);
        actions.add(position, action);
    }

    private int findPosition(JNAction action) {
        int i = 0;
        for (JNAction act : this.actions) {
            if (act.tabIndex() < action.tabIndex())
                i++;
        }
        return i;
    }

    /**
     * Reinitialize a Action Bar by updating resources {@link JNAction} visibility after login.<br/> 
     */
    public void onLogin() {
        for (JNAction action : actions) {
            for (Iterator<Component> iterator = iterator(); iterator.hasNext();) {
                Component component = iterator.next();
                if (actionsToName.get(action).equalsIgnoreCase(I18NHelper.getKey(component))) {
                    component.setVisible(validatePermission(action));
                }
            }
        }
        markAsDirty();
    }

    protected boolean validatePermission(JNAction action) {
        if (secured != null) {
            return secured.hasPermission(action.permission());
        }
        return true;
    }

    public String getFirstActionStyle() {
        return firstActionStyle;
    }

    public void setFirstActionStyle(String firstActionStyle) {
        this.firstActionStyle = firstActionStyle;
    }

    public String getLastActionStyle() {
        return lastActionStyle;
    }

    public void setLastActionStyle(String lastActionStyle) {
        this.lastActionStyle = lastActionStyle;
    }

    public String getActionStyle() {
        return actionStyle;
    }

    public void setActionStyle(String actionStyle) {
        this.actionStyle = actionStyle;
    }

    public JNISecured getSecured() {
        return secured;
    }

    public void setSecured(JNISecured secured) {
        this.secured = secured;
    }

    public JNActionGroup getActionGroup() {
        return actionGroup;
    }

    public void setActionGroup(JNActionGroup actionGroup) {
        this.actionGroup = actionGroup;
    }
}