Synnefo » Pithos

/*

 * 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 com.google.gwt.core.client.Scheduler;

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

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

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

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

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

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

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

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

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

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

import com.google.gwt.core.client.GWT;

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.http.client.URL;

import com.google.gwt.i18n.client.DateTimeFormat;

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

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

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

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

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

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

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

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

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

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

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

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

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

import java.util.Iterator;

/**

 * The 'Folder properties' dialog box implementation.

 */

public class FolderPropertiesDialog extends DialogBox {

    private GSS app;

        private CheckBox readForAll;

        /**

         * The widget that holds the folderName of the folder.

         */

        private TextBox folderName = new TextBox();

        /**

         * A flag that denotes whether the dialog will be used to create or modify a

         * folder.

         */

        private final boolean create;

        final Folder folder;

        final TabPanel inner;

        /**

         * The widget's constructor.

         */

        public FolderPropertiesDialog(GSS app, boolean _create,  Folder selected) {

        this.app = app;

                setAnimationEnabled(true);

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

                app.enableIESelection();

                create = _create;

                folder = selected;

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

                if (create)

                        setText("Create folder");

                else

                        setText("Folder properties");

                // Outer contains inner and buttons

                VerticalPanel outer = new VerticalPanel();

                // Inner contains generalPanel and permPanel

                inner = new DecoratedTabPanel();

                inner.setAnimationEnabled(true);

                VerticalPanel generalPanel = new VerticalPanel();

                VerticalPanel permPanel = new VerticalPanel();

                final HorizontalPanel permForAll = new HorizontalPanel();

                final HorizontalPanel pathPanel = new HorizontalPanel();

                HorizontalPanel buttons = new HorizontalPanel();

                HorizontalPanel permButtons = new HorizontalPanel();

                inner.add(generalPanel, "General");

                if (!create)

                        inner.add(permPanel, "Sharing");

                inner.selectTab(0);

                FlexTable generalTable = new FlexTable();

                generalTable.setText(0, 0, "Name");

                generalTable.setText(1, 0, "Parent");

                generalTable.setText(2, 0, "Creator");

                generalTable.setText(3, 0, "Last modified");

                folderName.setText(create ? "" : folder.getName());

        folderName.setReadOnly(folder.isContainer() && !create);

                generalTable.setWidget(0, 1, folderName);

                if (create)

                        generalTable.setText(1, 1, folder.getName());

                else

                        generalTable.setText(1, 1, folder.getPrefix());

                generalTable.setText(2, 1, "");

                DateTimeFormat formatter = DateTimeFormat.getFormat("d/M/yyyy h:mm a");

                if(folder.getLastModified() != null)

                        generalTable.setText(3, 1, formatter.format(folder.getLastModified()));

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

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

                generalTable.getFlexCellFormatter().setStyleName(2, 0, "props-labels");

                generalTable.getFlexCellFormatter().setStyleName(3, 0, "props-labels");

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

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

                generalTable.getFlexCellFormatter().setStyleName(2, 1, "props-values");

                generalTable.getFlexCellFormatter().setStyleName(3, 1, "props-values");

                generalTable.setCellSpacing(4);

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

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

                String okLabel;

                if (create)

                        okLabel = "Create";

                else

                        okLabel = "Update";

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

                        @Override

                        public void onClick(ClickEvent event) {

                                createOrUpdateFolder();

                                closeDialog();

                        }

                });

                buttons.add(ok);

                buttons.setCellHorizontalAlignment(ok, HasHorizontalAlignment.ALIGN_CENTER);

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

                // dialog

                // when the button is clicked.

                Button cancel = new Button("Cancel", new ClickHandler() {

                        @Override

                        public void onClick(ClickEvent event) {

                                closeDialog();

                        }

                });

                buttons.add(cancel);

                buttons.setCellHorizontalAlignment(cancel, HasHorizontalAlignment.ALIGN_CENTER);

                buttons.setSpacing(8);

                buttons.addStyleName("pithos-TabPanelBottom");

                generalPanel.add(generalTable);

                outer.add(inner);

                outer.add(buttons);

                outer.setCellHorizontalAlignment(buttons, HasHorizontalAlignment.ALIGN_CENTER);

                outer.addStyleName("pithos-TabPanelBottom");

                setWidget(outer);

                /*if (create)

                        folderName.setFocus(true);

                else

                        ok.setFocus(true);*/

        }

        @Override

        public void center() {

                super.center();

                folderName.setFocus(true);

        }

        @Override

        protected void onPreviewNativeEvent(NativePreviewEvent preview) {

                super.onPreviewNativeEvent(preview);

                NativeEvent evt = preview.getNativeEvent();

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

                        // Use the popup's key preview hooks to close the dialog when either

                        // enter or escape is pressed.

                        switch (evt.getKeyCode()) {

                                case KeyCodes.KEY_ENTER:

                                        closeDialog();

                                        createOrUpdateFolder();

                                        break;

                                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() {

                app.preventIESelection();

                hide();

        }

        /**

         * Generate an RPC request to create a new folder.

         */

        private void createFolder() {

                String name = folderName.getText();

        String prefix = folder.getPrefix();

        String path = app.getApiPath() + app.getUsername() + "/" + folder.getContainer() + "/" + (prefix.length() == 0 ? "" : prefix +  "/") + name;

        PutRequest createFolder = new PutRequest(path) {

            @Override

            public void onSuccess(Resource result) {

                app.updateFolder(folder);

            }

            @Override

            public void onError(Throwable t) {

                                GWT.log("", t);

                                if (t instanceof RestException) {

                                        app.displayError("Unable to create folder:" + ((RestException) t).getHttpStatusText());

                                }

                                else

                                        app.displayError("System error creating folder:" + t.getMessage());

            }

        };

        createFolder.setHeader("X-Auth-Token", app.getToken());

        createFolder.setHeader("Accept", "*/*");

        createFolder.setHeader("Content-Length", "0");

        createFolder.setHeader("Content-Type", "application/folder");

        Scheduler.get().scheduleDeferred(createFolder);

        }

        /**

         * Upon closing the dialog by clicking OK or pressing ENTER this method does

         * the actual work of modifying folder properties or creating a new Folder

         * depending on the value of the create field

         */

        private void createOrUpdateFolder() {

                if (create)

                        createFolder();

                else

                        updateFolder();

        }

        private void updateFolder() {

//                permList.updatePermissionsAccordingToInput();

//                Set<PermissionHolder> perms = permList.getPermissions();

//                JSONObject json = new JSONObject();

//                if(!folder.getName().equals(folderName.getText()))

//                        json.put("name", new JSONString(folderName.getText()));

//                //only update the read for all perm if the user is the owner

//                if (readForAll.getValue() != folder.isReadForAll())

//                        if (folder.getOwner().equals(app.getCurrentUserResource().getUsername()))

//                                json.put("readForAll", JSONBoolean.getInstance(readForAll.getValue()));

//                if (permList.hasChanges()) {

//                        JSONArray perma = new JSONArray();

//                        int i=0;

//                        for(PermissionHolder p : perms){

//                                JSONObject po = new JSONObject();

//                                if(p.getUser() != null)

//                                        po.put("user", new JSONString(p.getUser()));

//                                if(p.getGroup() != null)

//                                        po.put("group", new JSONString(p.getGroup()));

//                                po.put("read", JSONBoolean.getInstance(p.isRead()));

//                                po.put("write", JSONBoolean.getInstance(p.isWrite()));

//                                po.put("modifyACL", JSONBoolean.getInstance(p.isModifyACL()));

//                                perma.set(i,po);

//                                i++;

//                        }

//                        json.put("permissions", perma);

//                        GWT.log(json.toString(), null);

//                }

//                PostCommand ep = new PostCommand(folder.getUri()+"?update=", json.toString(), 200){

//

//                        @Override

//                        public void onComplete() {

//                                //TODO:CELLTREE

//

//                                if(getPostBody() != null && !"".equals(getPostBody().trim())){

//

//

//                                        FolderResource fres = ((RestResourceWrapper) app.getTreeView().getSelection()).getResource();

//                                        String initialPath = fres.getUri();

//                                        String newPath =  getPostBody().trim();

//                                        fres.setUri(newPath);

//                                        ((RestResourceWrapper) app.getTreeView().getSelection()).getResource().setUri(newPath);

//                                        ((RestResourceWrapper) app.getTreeView().getSelection()).setUri(newPath);

//                                        app.getTreeView().updateNodeChildren(fres.getParentURI());

//                                        if (permList.hasChanges()) {

//                                                app.getTreeView().updateMySharedNode();

//                                        }

//                                        /*

//                                        if(folderItem.getParentItem() != null && ((DnDTreeItem)folderItem.getParentItem()).getFolderResource() != null){

//                                                ((DnDTreeItem)folderItem.getParentItem()).getFolderResource().removeSubfolderPath(initialPath);

//                                                ((DnDTreeItem)folderItem.getParentItem()).getFolderResource().getSubfolderPaths().add(newPath);

//                                        }*/

//                                }

//                                //app.getFolders().updateFolder( (DnDTreeItem) app.getFolders().getCurrent());

//

//                                app.get().showFileList(true);

//                        }

//

//                        @Override

//                        public void onError(Throwable t) {

//                                GWT.log("", t);

//                                if(t instanceof RestException){

//                                        int statusCode = ((RestException)t).getHttpStatusCode();

//                                        if(statusCode == 405)

//                                                app.displayError("You don't have the necessary permissions or" +

//                                                                " a folder with same name already exists");

//                                        else if(statusCode == 404)

//                                                app.displayError("Resource not found, or user specified in sharing does not exist");

//                                        else

//                                                app.displayError("Unable to update folder: "+((RestException)t).getHttpStatusText());

//                                }

//                                else

//                                        app.displayError("System error moifying file: "+t.getMessage());

//                                //TODO:CELLTREE

//                                //app.getFolders().updateFolder( (DnDTreeItem) app.getFolders().getCurrent());

//                        }

//                };

//                DeferredCommand.addCommand(ep);

        final String newName = folderName.getText();

        if (!folder.isContainer() && !folder.getName().equals(newName)) {

            final String path = app.getApiPath() + app.getUsername() + folder.getParent().getUri() + "/" + newName;

            PutRequest newFolder = new PutRequest(path) {

                @Override

                public void onSuccess(Resource result) {

                    Iterator<File> iter = folder.getFiles().iterator();

                    app.copyFiles(iter, folder.getParent().getUri() + "/" + newName, new Command() {

                        @Override

                        public void execute() {

                            Iterator<Folder> iterf = folder.getSubfolders().iterator();

                            app.copySubfolders(iterf, folder.getParent().getUri() + "/" + newName, new Command() {

                                @Override

                                public void execute() {

                                    app.deleteFolder(folder);

                                    app.updateFolder(folder.getParent());

                                }

                            });

                        }

                    });

                }

                @Override

                public void onError(Throwable t) {

                    GWT.log("", t);

                    if(t instanceof RestException){

                        app.displayError("Unable to update folder: " + ((RestException) t).getHttpStatusText());

                    }

                    else

                        app.displayError("System error modifying folder: " + t.getMessage());

                }

            };

            newFolder.setHeader("X-Auth-Token", app.getToken());

            newFolder.setHeader("Content-Type", "application/folder");

            newFolder.setHeader("Accept", "*/*");

            newFolder.setHeader("Content-Length", "0");

            Scheduler.get().scheduleDeferred(newFolder);

        }

        }

        public void selectTab(int _tab) {

                inner.selectTab(_tab);

        }

}