Synnefo » Pithos

/*

 * Copyright 2008, 2009 Electronic Business Systems Ltd.

 *

 * This file is part of GSS.

 *

 * GSS is free software: you can redistribute it and/or modify

 * it under the terms of the GNU General Public License as published by

 * the Free Software Foundation, either version 3 of the License, or

 * (at your option) any later version.

 *

 * GSS is distributed in the hope that it will be useful,

 * but WITHOUT ANY WARRANTY; without even the implied warranty of

 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the

 * GNU General Public License for more details.

 *

 * You should have received a copy of the GNU General Public License

 * along with GSS.  If not, see <http://www.gnu.org/licenses/>.

 */

package gr.ebs.gss.client.tree;

import gr.ebs.gss.client.GSS;

import gr.ebs.gss.client.PopupTree;

import gr.ebs.gss.client.Folders.Images;

import gr.ebs.gss.client.dnd.DnDTreeItem;

import gr.ebs.gss.client.rest.GetCommand;

import gr.ebs.gss.client.rest.MultipleGetCommand;

import gr.ebs.gss.client.rest.resource.FolderResource;

import gr.ebs.gss.client.rest.resource.SharedResource;

import gr.ebs.gss.client.rest.resource.UserResource;

import java.util.ArrayList;

import java.util.List;

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

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

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

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

/**

 * @author kman

 */

public class MyShareSubtree extends Subtree {

        /**

         * A constant that denotes the completion of an IncrementalCommand.

         */

        public static final boolean DONE = false;

        private DnDTreeItem rootItem;

        public MyShareSubtree(PopupTree tree, final Images _images) {

                super(tree, _images);

                DeferredCommand.addCommand(new IncrementalCommand() {

                        public boolean execute() {

                                return updateInit();

                        }

                });

        }

        public boolean updateInit() {

                UserResource userResource = GSS.get().getCurrentUserResource();

                if (userResource == null || GSS.get().getFolders().getRootItem() == null || GSS.get().getFolders().getTrashItem() == null)

                        return !DONE;

                GetCommand<SharedResource> gs = new GetCommand<SharedResource>(SharedResource.class, userResource.getSharedPath()) {

                        public void onComplete() {

                                rootItem = new DnDTreeItem(imageItemHTML(images.myShared(), "My Shared"), "My Shared", false);

                                rootItem.setUserObject(getResult());

                                tree.addItem(rootItem);

                                rootItem.removeItems();

                                rootItem.doDroppable();

                                update(rootItem);

                        }

                        public void onError(Throwable t) {

                                GWT.log("Error fetching Shared Root folder", t);

                                GSS.get().displayError("Unable to fetch Shared Root folder");

                                if(rootItem != null){

                                        rootItem = new DnDTreeItem(imageItemHTML(images.myShared(), "ERROR"), "ERROR", false);

                                        tree.addItem(rootItem);

                                }

                        }

                };

                DeferredCommand.addCommand(gs);

                return DONE;

        }

        public void update(final DnDTreeItem folderItem) {

                if (folderItem.getFolderResource() != null) {

                        folderItem.removeItems();

                        List<String> newPaths = new ArrayList<String>();

                        for (String s : folderItem.getFolderResource().getSubfolderPaths()) {

                                if (!s.endsWith("/"))

                                        s = s + "/";

                                if (rootItem.getSharedResource().getSubfolderPaths().contains(s))

                                        newPaths.add(s);

                        }

                        String parentName = "";

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

                                parentName = ((DnDTreeItem)folderItem.getParentItem()).getFolderResource().getName()+"->";

                        parentName = parentName+folderItem.getFolderResource().getName();

                        folderItem.getFolderResource().setSubfolderPaths(newPaths);

                        MultipleGetCommand<FolderResource> gf = new MultipleGetCommand<FolderResource>(FolderResource.class, newPaths.toArray(new String[] {})) {

                                public void onComplete() {

                                        List<FolderResource> res = getResult();

                                        for (FolderResource r : res) {

                                                DnDTreeItem child = (DnDTreeItem) addImageItem(folderItem, r.getName(), images.folderYellow(), true);

                                                child.setUserObject(r);

                                                child.setState(false);

                                                child.doDraggable();

                                                if(folderItem.getState())

                                                        update(child);

                                        }

                                }

                                public void onError(Throwable t) {

                                        GSS.get().displayError("Unable to fetch subfolders");

                                        GWT.log("Unable to fetch subfolders", t);

                                }

                                @Override

                                public void onError(String p, Throwable throwable) {

                                        GWT.log("Path:"+p, throwable);

                                }

                        };

                        DeferredCommand.addCommand(gf);

                }

                if (folderItem.getSharedResource() != null) {

                        folderItem.removeItems();

                        List<String> paths = folderItem.getSharedResource().getSubfolderPaths();

                        List<String> newPaths = new ArrayList<String>();

                        for (String r : paths)

                                if (isRoot(r, paths))

                                        newPaths.add(r);

                        MultipleGetCommand<FolderResource> gf = new MultipleGetCommand<FolderResource>(FolderResource.class, newPaths.toArray(new String[] {})) {

                                public void onComplete() {

                                        List<FolderResource> res = getResult();

                                        for (FolderResource r : res) {

                                                DnDTreeItem child = (DnDTreeItem) addImageItem(folderItem, r.getName(), images.folderYellow(), true);

                                                child.setUserObject(r);

                                                child.setState(false);

                                                child.doDraggable();

                                                update(child);

                                        }

                                }

                                public void onError(Throwable t) {

                                        GSS.get().displayError("Unable to fetch subfolders");

                                        GWT.log("Unable to fetch subfolders", t);

                                }

                                @Override

                                public void onError(String p, Throwable throwable) {

                                        GWT.log("Path:"+p, throwable);

                                }

                        };

                        DeferredCommand.addCommand(gf);

                }

        }

        private void handleFolders(DnDTreeItem child, FolderResource ff, List<FolderResource> folders) {

        }

        private boolean isRoot(FolderResource f, List<FolderResource> folders) {

                for (FolderResource t : folders)

                        if (!f.getUri().equals(t.getUri()) && f.getUri().startsWith(t.getUri()))

                                return false;

                return true;

        }

        private boolean isRoot(String f, List<String> folders) {

                for (String t : folders)

                        if (!f.equals(t) && f.startsWith(t))

                                return false;

                return true;

        }

        public void updateFolderAndSubfolders(final DnDTreeItem folderItem) {

                if (folderItem.getFolderResource() != null) {

                        final String path = folderItem.getFolderResource().getUri();

                        GetCommand<SharedResource> gs = new GetCommand<SharedResource>(SharedResource.class, GSS.get().getCurrentUserResource().getSharedPath()) {

                                public void onComplete() {

                                        rootItem.setUserObject(getResult());

                                        GetCommand<FolderResource> gf = new GetCommand<FolderResource>(FolderResource.class, path) {

                                                public void onComplete() {

                                                        FolderResource rootResource = getResult();

                                                        if(rootItem.getSharedResource().getSubfolderPaths().contains(rootResource.getUri())){

                                                                folderItem.undoDraggable();

                                                                folderItem.updateWidget(imageItemHTML(images.folderYellow(), rootResource.getName()));

                                                                folderItem.setUserObject(rootResource);

                                                                folderItem.doDraggable();

                                                                update(folderItem);

                                                        } else

                                                                folderItem.getParentItem().removeItem(folderItem);

                                                }

                                                public void onError(Throwable t) {

                                                        GWT.log("Error fetching folder", t);

                                                        GSS.get().displayError("Unable to fetch folder:" + folderItem.getFolderResource().getName());

                                                }

                                        };

                                        DeferredCommand.addCommand(gf);

                                }

                                public void onError(Throwable t) {

                                        GWT.log("Error fetching Shared Root folder", t);

                                        GSS.get().displayError("Unable to fetch Shared Root folder");

                                }

                        };

                        DeferredCommand.addCommand(gs);

                }

                else if( folderItem.getSharedResource() != null){

                        GetCommand<SharedResource> gs = new GetCommand<SharedResource>(SharedResource.class, GSS.get().getCurrentUserResource().getSharedPath()) {

                                public void onComplete() {

                                        rootItem.setUserObject(getResult());

                                        rootItem.removeItems();

                                        update(rootItem);

                                }

                                public void onError(Throwable t) {

                                        GWT.log("Error fetching Shared Root folder", t);

                                        GSS.get().displayError("Unable to fetch Shared Root folder");

                                }

                        };

                        DeferredCommand.addCommand(gs);

                }

        }

        /**

         * Retrieve the rootItem.

         *

         * @return the rootItem

         */

        public TreeItem getRootItem() {

                return rootItem;

        }

        public void updateNode(TreeItem node, FolderResource folder) {

                node.getWidget().removeStyleName("gss-SelectedRow");

                if (node instanceof DnDTreeItem) {

                        ((DnDTreeItem) node).undoDraggable();

                        ((DnDTreeItem) node).updateWidget(imageItemHTML(images.folderYellow(), folder.getName()));

                        ((DnDTreeItem) node).doDraggable();

                } else

                        node.setWidget(imageItemHTML(images.folderYellow(), folder.getName()));

                node.setUserObject(folder);

        }

}