Synnefo » Pithos Web Client

/*

 * Copyright 2011-2013 GRNET S.A. All rights reserved.

 *

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

 * without modification, are permitted provided that the following

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 *

 *   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,

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

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

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 * documentation are those of the authors and should not be

 * interpreted as representing official policies, either expressed

 * or implied, of GRNET S.A.

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package gr.grnet.pithos.web.client;

import com.google.gwt.dom.client.NativeEvent;

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

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

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

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

import com.google.gwt.event.logical.shared.ValueChangeEvent;

import com.google.gwt.event.logical.shared.ValueChangeHandler;

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

import com.google.gwt.user.client.Event.NativePreviewEvent;

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

import gr.grnet.pithos.web.client.commands.AddUserCommand;

import gr.grnet.pithos.web.client.foldertree.Folder;

import gr.grnet.pithos.web.client.grouptree.Group;

/**

 * The 'Purge Container' dialog box implementation.

 */

public class PurgeContainerDialog extends DialogBox {

    private final Pithos app;

    private final Folder container;

    private final CheckBox yesIAgree;

        private final VerticalPanel inner;

        public PurgeContainerDialog(Pithos app, Folder container) {

        this.app = app;

        this.container = container;

        this.yesIAgree =  new CheckBox("I want to purge all contents of " + container.getName());

        this.yesIAgree.setValue(false);

                Anchor close = new Anchor("close");

                close.addStyleName("close");

                close.addClickHandler(new ClickHandler() {

                        @Override

                        public void onClick(ClickEvent event) {

                                hide();

                        }

                });

                setGlassEnabled(true);

                setStyleName("pithos-DialogBox");

                // Enable IE selection for the dialog (must disable it upon closing it)

                Pithos.enableIESelection();

                // Use this opportunity to set the dialog's caption.

                setText(Const.PurgeContainer(container.getName()));

                // Outer contains inner and buttons

                VerticalPanel outer = new VerticalPanel();

                outer.add(close);

                // Inner contains generalPanel and permPanel

                inner = new VerticalPanel();

                inner.addStyleName("inner");

                VerticalPanel generalPanel = new VerticalPanel();

        FlexTable generalTable = new FlexTable();

        generalTable.setText(0, 0, "Are you sure?");

        generalTable.setWidget(0, 1, yesIAgree);

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

        generalTable.getFlexCellFormatter().setStyleName(0, 1, "props-values");

        generalTable.setCellSpacing(4);

        generalPanel.add(generalTable);

        inner.add(generalPanel);

        outer.add(inner);

                // Create the 'Create/Update' button, along with a listener that hides the dialog

                // when the button is clicked and quits the application.

                String okLabel = "Purge Container";

                final Button ok = new Button(okLabel, new ClickHandler() {

                        @Override

                        public void onClick(ClickEvent event) {

                purgeContainer();

                                closeDialog();

                        }

                });

                ok.addStyleName("button");

        ok.setEnabled(false);

        ok.setVisible(false);

                outer.add(ok);

        this.yesIAgree.addValueChangeHandler(new ValueChangeHandler<Boolean>() {

            @Override

            public void onValueChange(ValueChangeEvent<Boolean> event) {

                ok.setVisible(event.getValue());

                ok.setEnabled(event.getValue());

            }

        });

        outer.setCellHorizontalAlignment(inner, HasHorizontalAlignment.ALIGN_CENTER);

        setWidget(outer);

        }

        @Override

        public void center() {

                super.center();

        yesIAgree.setFocus(false);

        }

        @Override

        protected void onPreviewNativeEvent(NativePreviewEvent preview) {

                super.onPreviewNativeEvent(preview);

                NativeEvent evt = preview.getNativeEvent();

                if (evt.getType().equals(KeyDownEvent.getType().getName()))

                        // Exit the dialog on Escape

                        switch (evt.getKeyCode()) {

                                case KeyCodes.KEY_ESCAPE:

                                        closeDialog();

                                        break;

                        }

        }

        /**

         * Enables IE selection prevention and hides the dialog

         * (we disable the prevention on creation of the dialog)

         */

        public void closeDialog() {

                Pithos.preventIESelection();

                hide();

        }

    private void purgeContainer() {

        app.purgeContainer(container);

    }

}