Synnefo

/*

 * Copyright 2011 GRNET S.A. All rights reserved.

 *

 * Redistribution and use in source and binary forms, with or

 * without modification, are permitted provided that the following

 * conditions are met:

 *

 *   1. Redistributions of source code must retain the above

 *      copyright notice, this list of conditions and the following

 *      disclaimer.

 *

 *   2. Redistributions in binary form must reproduce the above

 *      copyright notice, this list of conditions and the following

 *      disclaimer in the documentation and/or other materials

 *      provided with the distribution.

 *

 * THIS SOFTWARE IS PROVIDED BY GRNET S.A. ``AS IS'' AND ANY EXPRESS

 * OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED

 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR

 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL GRNET S.A OR

 * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,

 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT

 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF

 * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED

 * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT

 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN

 * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE

 * POSSIBILITY OF SUCH DAMAGE.

 *

 * The views and conclusions contained in the software and

 * documentation are those of the authors and should not be

 * interpreted as representing official policies, either expressed

 * or implied, of GRNET S.A.

 */

package gr.grnet.pithos.web.client;

import gr.grnet.pithos.web.client.FilePropertiesDialog.Images;

import gr.grnet.pithos.web.client.rest.GetCommand;

import gr.grnet.pithos.web.client.rest.resource.PermissionHolder;

import gr.grnet.pithos.web.client.rest.resource.UserResource;

import gr.grnet.pithos.web.client.rest.resource.UserSearchResource;

import java.util.HashMap;

import java.util.HashSet;

import java.util.Map;

import java.util.Set;

import com.google.gwt.event.dom.client.ClickEvent;

import com.google.gwt.event.dom.client.ClickHandler;

import com.google.gwt.user.client.DeferredCommand;

import com.google.gwt.user.client.ui.AbstractImagePrototype;

import com.google.gwt.user.client.ui.CheckBox;

import com.google.gwt.user.client.ui.Composite;

import com.google.gwt.user.client.ui.FlexTable;

import com.google.gwt.user.client.ui.HasHorizontalAlignment;

import com.google.gwt.user.client.ui.PushButton;

import com.google.gwt.user.client.ui.VerticalPanel;

public class PermissionsList extends Composite {

        int selectedRow = -1;

        int permissionCount = -1;

        Map<String, Boolean[]> permissions = null;

        final Images images;

        final VerticalPanel permPanel = new VerticalPanel();

        final FlexTable permTable = new FlexTable();

        final String owner;

        private boolean hasChanges = false;

        private boolean hasAddition = false;

    private Pithos app;

        public PermissionsList(Pithos _app, final Images theImages, Map<String, Boolean[]> thePermissions, String anOwner){

        app = _app;

                images = theImages;

                owner = anOwner;

                permissions =  new HashMap<String, Boolean[]>(thePermissions);

                permTable.setText(0, 0, "Users/Groups");

                permTable.setText(0, 1, "Read");

                permTable.setText(0, 2, "Write");

                permTable.setText(0, 3, "");

                permTable.getFlexCellFormatter().setStyleName(0, 0, "props-toplabels");

                permTable.getFlexCellFormatter().setStyleName(0, 1, "props-toplabels");

                permTable.getFlexCellFormatter().setStyleName(0, 2, "props-toplabels");

                permTable.getFlexCellFormatter().setStyleName(0, 3, "props-toplabels");

                permPanel.add(permTable);

                permPanel.addStyleName("pithos-TabPanelBottom");

                initWidget(permPanel);

                updatePermissionTable();

        }

        public boolean hasChanges(){

                return hasChanges || hasAddition;

        }

        public void updatePermissionsAccordingToInput(){

//                int i=1;

//                for(PermissionHolder dto : permissions){

//                        /*if(dto.getId() == null)

//                                hasChanges =true;*/

//                        CheckBox r = (CheckBox) permTable.getWidget(i, 1);

//                        CheckBox w = (CheckBox) permTable.getWidget(i, 2);

//

//

//                        if(dto.isRead() != r.getValue() || dto.isWrite() != w.getValue() || dto.isModifyACL() != m.getValue())

//                                hasChanges = true;

//                        dto.setRead(r.getValue());

//                        dto.setWrite(w.getValue());

//                        dto.setModifyACL(m.getValue());

//                        i++;

//                }

        }

        /**

         * Retrieve the permissions.

         *

         * @return the permissions

         */

        public Map<String, Boolean[]> getPermissions() {

                return permissions;

        }

        public void addPermission(String user, boolean read, boolean write){

                permissions.put(user, new Boolean[] {Boolean.valueOf(read), Boolean.valueOf(write)});

                hasAddition = true;

        updatePermissionTable();

        }

        /**

         * Shows the permission table 

         * 

         */

        void updatePermissionTable(){

                int i = 1;

        for (int j=1; j<permTable.getRowCount(); j++)

            permTable.removeRow(j);

                for(final String user : permissions.keySet()) {

                        PushButton removeButton = new PushButton(AbstractImagePrototype.create(images.delete()).createImage(), new ClickHandler() {

                                @Override

                                public void onClick(ClickEvent event) {

                    permissions.remove(user);

                                        updatePermissionTable();

                                        hasChanges = true;

                                }

                        });

            if (user.equals(owner)) {

                permTable.setHTML(i, 0, "<span>" + AbstractImagePrototype.create(images.permUser()).getHTML() + "&nbsp;Owner</span>");

                removeButton.setVisible(false);

            }

            else if (!user.contains(":")) //not a group

                permTable.setHTML(i, 0, "<span>" + AbstractImagePrototype.create(images.permUser()).getHTML() + "&nbsp;" + user + "</span>");

            else

                permTable.setHTML(i, 0, "<span>" + AbstractImagePrototype.create(images.permGroup()).getHTML() + "&nbsp;" + user.split(":")[1].trim() + "</span>");

            Boolean[] userPerms = permissions.get(user);

            Boolean readP = userPerms[0];

            Boolean writeP = userPerms[1];

                        CheckBox read = new CheckBox();

                        read.setValue(readP != null ? readP : false);

                        CheckBox write = new CheckBox();

                        write.setValue(writeP != null ? writeP : false);

                        permTable.setWidget(i, 1, read);

                        permTable.setWidget(i, 2, write);

                        permTable.setWidget(i, 3, removeButton);

                        permTable.getFlexCellFormatter().setStyleName(i, 0, "props-labels");

                        permTable.getFlexCellFormatter().setHorizontalAlignment(i, 1, HasHorizontalAlignment.ALIGN_CENTER);

                        permTable.getFlexCellFormatter().setHorizontalAlignment(i, 2, HasHorizontalAlignment.ALIGN_CENTER);

                        permTable.getFlexCellFormatter().setHorizontalAlignment(i, 3, HasHorizontalAlignment.ALIGN_CENTER);

                        i++;

                }

                hasChanges = false;

        }

}