root / src / gr / ebs / gss / client / Folders.java @ f7c2e76a
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/*
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* Copyright 2007, 2008, 2009 Electronic Business Systems Ltd.
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*
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* This file is part of GSS.
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*
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* GSS is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* GSS is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with GSS. If not, see <http://www.gnu.org/licenses/>.
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*/
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package gr.ebs.gss.client; |
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import gr.ebs.gss.client.dnd.DnDTreeItem; |
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import gr.ebs.gss.client.rest.resource.FolderResource; |
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import gr.ebs.gss.client.rest.resource.OtherUserResource; |
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import gr.ebs.gss.client.rest.resource.RestResource; |
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import gr.ebs.gss.client.tree.FolderSubtree; |
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import gr.ebs.gss.client.tree.MyShareSubtree; |
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import gr.ebs.gss.client.tree.OthersSharesSubtree; |
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import gr.ebs.gss.client.tree.TrashSubtree; |
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import java.util.ArrayList; |
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import java.util.List; |
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import com.google.gwt.resources.client.ClientBundle; |
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import com.google.gwt.resources.client.ImageResource; |
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import com.google.gwt.user.client.Command; |
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import com.google.gwt.user.client.DeferredCommand; |
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import com.google.gwt.user.client.ui.Composite; |
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import com.google.gwt.user.client.ui.Tree; |
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import com.google.gwt.user.client.ui.TreeItem; |
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/**
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* A tree displaying the folders in the user's file space.
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*/
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public class Folders extends Composite { |
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/**
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* A constant that denotes the completion of an IncrementalCommand.
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*/
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public static final boolean DONE = false; |
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/**
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* Specifies the images that will be bundled for this Composite and other
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* inherited images that will be included in the same bundle.
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*/
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public interface Images extends ClientBundle,Tree.Resources, FolderContextMenu.Images { |
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@Source("gr/ebs/gss/resources/folder_home.png") |
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ImageResource home(); |
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@Source("gr/ebs/gss/resources/folder_yellow.png") |
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ImageResource folderYellow(); |
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@Source("gr/ebs/gss/resources/mimetypes/document.png") |
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ImageResource document(); |
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@Source("gr/ebs/gss/resources/internet.png") |
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ImageResource othersShared(); |
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@Source("gr/ebs/gss/resources/edit_user.png") |
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ImageResource myShared(); |
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@Source("gr/ebs/gss/resources/folder_user.png") |
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ImageResource sharedFolder(); |
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@Source("gr/ebs/gss/resources/trashcan_empty.png") |
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ImageResource trash(); |
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} |
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/**
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* The widget's image bundle.
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*/
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private final Images images; |
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/**
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* The tree widget that displays the folder namespace.
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*/
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private PopupTree tree;
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/**
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* A cached copy of the currently selected folder widget.
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*/
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private FolderSubtree folderSubtree;
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private TrashSubtree trashSubtree;
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private MyShareSubtree myShareSubtree;
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private OthersSharesSubtree othersSharesSubtree;
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/**
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* Constructs a new folders widget with a bundle of images.
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*
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* @param _images a bundle that provides the images for this widget
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*/
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public Folders(final Images _images) { |
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images = _images; |
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tree = new PopupTree(images);
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tree.setAnimationEnabled(true);
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initWidget(tree); |
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folderSubtree = new FolderSubtree(tree, images);
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myShareSubtree = new MyShareSubtree(tree, images);
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trashSubtree = new TrashSubtree(tree, images);
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othersSharesSubtree = new OthersSharesSubtree(tree, images);
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} |
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public Images getImages() {
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return images;
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} |
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public void select(TreeItem item) { |
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tree.processItemSelected(item, true);
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} |
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public void clearSelection() { |
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tree.clearSelection(); |
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} |
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public void update(TreeItem item) { |
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if (isFileItem(item))
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folderSubtree.updateSubfolders((DnDTreeItem) item); |
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else if (isTrash(item)) |
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trashSubtree.update(); |
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else if (isMySharedItem(item)) |
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myShareSubtree.update((DnDTreeItem) item); |
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else if (isOthersSharedItem(item)) |
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othersSharesSubtree.update((DnDTreeItem) item); |
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} |
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public void updateFolder(final DnDTreeItem folderItem) { |
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if (isFileItem(folderItem)){
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folderSubtree.updateFolderAndSubfolders(folderItem); |
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myShareSubtree.updateFolderAndSubfolders((DnDTreeItem) getMySharesItem()); |
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} |
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else if (isMySharedItem(folderItem)){ |
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myShareSubtree.updateFolderAndSubfolders(folderItem); |
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if (folderItem.getFolderResource() != null) { |
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DnDTreeItem fitem = (DnDTreeItem) getUserItem(getRootItem(), folderItem.getFolderResource().getUri()); |
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if (fitem != null) |
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folderSubtree.updateFolderAndSubfolders(fitem); |
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else
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folderSubtree.updateFolderAndSubfolders((DnDTreeItem) getRootItem()); |
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} |
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} |
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else if (isTrashItem(folderItem)) |
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trashSubtree.update(); |
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else if (isOthersSharedItem(folderItem)) |
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othersSharesSubtree.updateFolderAndSubfolders(folderItem); |
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} |
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/**
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* Retrieve the current.
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*
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* @return the current
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*/
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public TreeItem getCurrent() {
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return tree.getTreeSelectedItem();
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} |
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/**
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* Modify the current.
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*
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* @param _current the current to set
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*/
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void setCurrent(final TreeItem _current) { |
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tree.setTreeSelectedItem(_current); |
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} |
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/**
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* Checks whether a TreeItem is contained in the root folder structure
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*
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* @param item The TreeItem to check
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*/
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public boolean isFileItem(TreeItem item) { |
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if (getRootOfItem(item).equals(getRootItem()))
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return true; |
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return false; |
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} |
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/**
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* Checks whether a TreeItem is contained in the trash folder structure
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*
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* @param item The TreeItem to check
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*/
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public boolean isTrashItem(TreeItem item) { |
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if (getRootOfItem(item).equals(getTrashItem()))
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return true; |
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return false; |
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} |
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/**
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* Checks whether a TreeItem is contained in the trash folder structure
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*
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* @param item The TreeItem to check
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*/
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public boolean isOthersSharedItem(TreeItem item) { |
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if (getRootOfItem(item).equals(getSharesItem()))
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return true; |
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return false; |
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} |
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/**
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* Checks whether a TreeItem is contained in the trash folder structure
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*
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* @param item The TreeItem to check
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*/
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public boolean isMySharedItem(TreeItem item) { |
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if (getRootOfItem(item).equals(getMySharesItem()))
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return true; |
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return false; |
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} |
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private TreeItem getRootOfItem(TreeItem item) {
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if (item.getParentItem() == null) |
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return item;
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TreeItem toCheck = item; |
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while (toCheck.getParentItem() != null) { |
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toCheck = toCheck.getParentItem(); |
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toCheck = getRootOfItem(toCheck); |
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} |
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return toCheck;
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} |
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public TreeItem getUserOfSharedItem(TreeItem item) {
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if (item.getUserObject() instanceof OtherUserResource) |
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return item;
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TreeItem test = item; |
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while (test.getParentItem() != null) { |
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test = test.getParentItem(); |
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if (test.getUserObject() instanceof OtherUserResource) |
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return test;
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} |
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return null; |
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} |
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public boolean isTrash(TreeItem item) { |
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return item.equals(getTrashItem());
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} |
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public boolean isMyShares(TreeItem item) { |
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return item.equals(getMySharesItem());
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} |
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public boolean isOthersShared(TreeItem item) { |
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return item.equals(getSharesItem());
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} |
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/*
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* Returns the Tree Item corresponding to the FolderDTO object
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* since we need to update main file structure for untrashed folders
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*/
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public TreeItem getUserItem(FolderResource folder) {
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return getUserItem(getRootItem(), folder);
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} |
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public TreeItem getOtherSharedItem(FolderResource folder) {
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return getUserItem(getSharesItem(), folder);
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} |
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private TreeItem getUserItem(TreeItem parent, FolderResource folder) {
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TreeItem tmp = null;
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if (parent.getUserObject() instanceof FolderResource && |
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(parent.getUserObject().equals(folder) || |
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((FolderResource) parent.getUserObject()).getUri().equals(folder.getUri()))) |
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return parent;
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for (int i = 0; i < parent.getChildCount(); i++) { |
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TreeItem child = parent.getChild(i); |
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if (child.getUserObject() instanceof FolderResource) { |
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FolderResource dto = (FolderResource) child.getUserObject(); |
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if (dto.equals(folder) || dto.getUri().equals(folder.getUri()))
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return child;
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} |
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tmp = getUserItem(child, folder); |
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if (tmp != null) |
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return tmp;
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} |
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return null; |
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} |
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/**
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* Retrieve the trashItem.
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*
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* @return the trashItem
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*/
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public TreeItem getTrashItem() {
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return trashSubtree.getRootItem();
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} |
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/**
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* Retrieve the rootItem.
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*
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* @return the rootItem
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*/
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public TreeItem getRootItem() {
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return folderSubtree.getRootItem();
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} |
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/**
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* Retrieve the mySharesItem.
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*
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* @return the mySharesItem
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*/
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public TreeItem getMySharesItem() {
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return myShareSubtree.getRootItem();
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} |
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/**
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* Retrieve the sharesItem.
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*
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* @return the sharesItem
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*/
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public TreeItem getSharesItem() {
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return othersSharesSubtree.getRootItem();
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} |
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public void onFolderTrash(TreeItem folder) { |
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if (folder.getParentItem().getUserObject() instanceof FolderResource) { |
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FolderResource folderDTO = (FolderResource) folder.getParentItem().getUserObject(); |
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updateFileAndShareNodes(folderDTO); |
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} else
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update(getMySharesItem()); |
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update(getTrashItem()); |
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clearSelection(); |
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GSS.get().getFileList().updateFileCache(false, true /*clear selection*/); |
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} |
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public void onFolderDelete(TreeItem folder) { |
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if (folder.getParentItem().getUserObject() instanceof FolderResource) { |
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FolderResource folderDTO = (FolderResource) folder.getParentItem().getUserObject(); |
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updateFileAndShareNodes(folderDTO); |
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} else
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update(getMySharesItem()); |
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GSS.get().getStatusPanel().updateStats(); |
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clearSelection(); |
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GSS.get().getFileList().updateFileCache(false, true /*clear selection*/); |
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} |
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public void onFolderCopy(TreeItem folder) { |
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if (!updateFileAndShareNodes((FolderResource) folder.getUserObject()))
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update(folder); |
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GSS.get().getFileList().updateFileCache(false, true /*clear selection*/); |
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GSS.get().getStatusPanel().updateStats(); |
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} |
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public void onFolderMove(TreeItem folder, FolderResource initialParent) { |
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updateFileAndShareNodes(initialParent); |
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updateFileAndShareNodes((FolderResource) folder.getUserObject()); |
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update(folder); |
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GSS.get().getFileList().updateFileCache(false, true /*clear selection*/); |
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GSS.get().getStatusPanel().updateStats(); |
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clearSelection(); |
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} |
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private boolean updateFileAndShareNodes(FolderResource folder) { |
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boolean updated = false; |
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TreeItem sharesFolder = getUserItem(getMySharesItem(), folder); |
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if (sharesFolder != null) { |
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update(sharesFolder); |
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updated = true;
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} |
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TreeItem fileFolder = getUserItem(getRootItem(), folder); |
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if (fileFolder != null) { |
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update(fileFolder); |
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updated = true;
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} |
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return updated;
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} |
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public void initialize() { |
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DeferredCommand.addCommand(new Command() {
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public void execute() { |
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GSS.get().showLoadingIndicator(); |
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folderSubtree.getRootItem().removeItems(); |
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trashSubtree.getRootItem().removeItems(); |
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myShareSubtree.getRootItem().removeItems(); |
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othersSharesSubtree.getRootItem().removeItems(); |
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update(folderSubtree.getRootItem()); |
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update(trashSubtree.getRootItem()); |
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update(myShareSubtree.getRootItem()); |
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update(othersSharesSubtree.getRootItem()); |
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GSS.get().setCurrentSelection(null);
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clearSelection(); |
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GSS.get().getFileList().updateFileCache(false, true /*clear selection*/); |
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GSS.get().hideLoadingIndicator(); |
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} |
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}); |
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} |
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/* NEW HANDLING METHODS */
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public TreeItem getUserItem(TreeItem parent, String path) { |
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TreeItem tmp = null;
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if (parent.getUserObject() instanceof RestResource && ((RestResource) parent.getUserObject()).getUri().equals(path)) |
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return parent;
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for (int i = 0; i < parent.getChildCount(); i++) { |
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TreeItem child = parent.getChild(i); |
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if (child.getUserObject() instanceof RestResource) { |
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RestResource dto = (RestResource) child.getUserObject(); |
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if (dto.getUri().equals(path))
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return child;
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} |
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tmp = getUserItem(child, path); |
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if (tmp != null) |
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return tmp;
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} |
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return null; |
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} |
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public List<TreeItem> getItemsOfTreeForPath(String path) { |
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List<TreeItem> result = new ArrayList<TreeItem>(); |
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TreeItem item = null;
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item = getUserItem(getRootItem(), path); |
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if (item != null) |
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result.add(item); |
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item = getUserItem(getMySharesItem(), path); |
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if (item != null) |
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result.add(item); |
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item = getUserItem(getTrashItem(), path); |
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if (item != null) |
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result.add(item); |
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item = getUserItem(getSharesItem(), path); |
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if (item != null) |
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result.add(item); |
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return result;
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} |
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} |