root / src / gr / grnet / pithos / web / client / othersharedtree / OtherSharedTreeViewModel.java @ c9ccc229
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/*
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* Copyright 2011-2012 GRNET S.A. All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or
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* without modification, are permitted provided that the following
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* conditions are met:
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*
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* 1. Redistributions of source code must retain the above
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* copyright notice, this list of conditions and the following
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* disclaimer.
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*
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* 2. Redistributions in binary form must reproduce the above
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* copyright notice, this list of conditions and the following
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* disclaimer in the documentation and/or other materials
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* provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY GRNET S.A. ``AS IS'' AND ANY EXPRESS
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* OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
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* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL GRNET S.A OR
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* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
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* USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
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* AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
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* ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*
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* The views and conclusions contained in the software and
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* documentation are those of the authors and should not be
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* interpreted as representing official policies, either expressed
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* or implied, of GRNET S.A.
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*/
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package gr.grnet.pithos.web.client.othersharedtree; |
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import gr.grnet.pithos.web.client.FolderContextMenu; |
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import gr.grnet.pithos.web.client.Pithos; |
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import gr.grnet.pithos.web.client.SharingUsers; |
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import gr.grnet.pithos.web.client.foldertree.AccountResource; |
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import gr.grnet.pithos.web.client.foldertree.File; |
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import gr.grnet.pithos.web.client.foldertree.Folder; |
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import gr.grnet.pithos.web.client.mysharedtree.MysharedTreeView; |
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import gr.grnet.pithos.web.client.othersharedtree.OtherSharedTreeView.Templates; |
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import gr.grnet.pithos.web.client.rest.GetRequest; |
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import gr.grnet.pithos.web.client.rest.RestException; |
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import java.util.HashMap; |
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import java.util.HashSet; |
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import java.util.Iterator; |
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import java.util.Map; |
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import java.util.Set; |
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import com.google.gwt.cell.client.AbstractCell; |
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import com.google.gwt.cell.client.Cell; |
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import com.google.gwt.cell.client.TextCell; |
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import com.google.gwt.cell.client.ValueUpdater; |
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import com.google.gwt.core.client.GWT; |
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import com.google.gwt.core.client.Scheduler; |
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import com.google.gwt.event.dom.client.ContextMenuEvent; |
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import com.google.gwt.http.client.Response; |
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import com.google.gwt.http.client.URL; |
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import com.google.gwt.safehtml.shared.SafeHtml; |
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import com.google.gwt.safehtml.shared.SafeHtmlBuilder; |
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import com.google.gwt.text.shared.SafeHtmlRenderer; |
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import com.google.gwt.user.client.Command; |
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import com.google.gwt.user.client.ui.AbstractImagePrototype; |
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import com.google.gwt.view.client.ListDataProvider; |
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import com.google.gwt.view.client.SelectionChangeEvent; |
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import com.google.gwt.view.client.SelectionChangeEvent.Handler; |
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import com.google.gwt.view.client.SingleSelectionModel; |
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import com.google.gwt.view.client.TreeViewModel; |
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public class OtherSharedTreeViewModel implements TreeViewModel { |
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private static final String treeTitle = "Shared to me"; |
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protected Pithos app;
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private Cell<Folder> folderCell = new AbstractCell<Folder>(ContextMenuEvent.getType().getName()) { |
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@Override
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public void render(Context context, Folder folder, SafeHtmlBuilder safeHtmlBuilder) { |
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String html = AbstractImagePrototype.create(OtherSharedTreeView.images.folderYellow()).getHTML();
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safeHtmlBuilder.appendHtmlConstant(html).appendHtmlConstant(" ");
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safeHtmlBuilder.append(Templates.INSTANCE.nameSpan(folder.getName()));
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} |
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@Override
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public void onBrowserEvent(Context context, com.google.gwt.dom.client.Element parent, final Folder folder, com.google.gwt.dom.client.NativeEvent event, ValueUpdater<Folder> valueUpdater) { |
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if (event.getType().equals(ContextMenuEvent.getType().getName())) {
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final int x = event.getClientX(); |
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final int y = event.getClientY(); |
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OtherSharedTreeViewModel.this.selectionModel.setSelected(folder, true);
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app.scheduleFolderHeadCommand(folder, new Command() {
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@Override
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public void execute() { |
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FolderContextMenu menu = new FolderContextMenu(app, OtherSharedTreeView.images, app.getSelectedTree(), folder);
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menu.setPopupPosition(x, y); |
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menu.show(); |
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} |
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}); |
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} |
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} |
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}; |
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private ListDataProvider<String> rootDataProvider = new ListDataProvider<String>(); |
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protected ListDataProvider<String> userLevelDataProvider = new ListDataProvider<String>(); |
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protected Map<String, ListDataProvider<Folder>> userDataProviderMap = new HashMap<String, ListDataProvider<Folder>>(); |
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private Map<Folder, ListDataProvider<Folder>> dataProviderMap = new HashMap<Folder, ListDataProvider<Folder>>(); |
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protected Map<String, Set<File>> sharedFiles = new HashMap<String, Set<File>>(); |
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protected SingleSelectionModel<Folder> selectionModel; |
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public OtherSharedTreeViewModel(Pithos _app, SingleSelectionModel<Folder> selectionModel) { |
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app = _app; |
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this.selectionModel = selectionModel;
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} |
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@Override
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public <T> NodeInfo<?> getNodeInfo(T value) {
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if (value == null) { |
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rootDataProvider.getList().add(treeTitle); |
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final SingleSelectionModel<String> selectionModel2 = new SingleSelectionModel<String>(); |
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selectionModel2.addSelectionChangeHandler(new Handler() { |
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@Override
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public void onSelectionChange(SelectionChangeEvent event) { |
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if (selectionModel2.getSelectedObject() != null) { |
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app.deselectOthers(app.getOtherSharedTreeView(), selectionModel2); |
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app.applyPermissions(null);
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app.showFiles(new HashSet<File>()); |
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app.showRelevantToolbarButtons(); |
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} |
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else {
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if (app.getSelectedTree().equals(app.getOtherSharedTreeView()))
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app.setSelectedTree(null);
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if (app.getSelectedTree() == null) |
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app.showRelevantToolbarButtons(); |
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} |
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} |
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}); |
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app.addSelectionModel(selectionModel2); |
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return new DefaultNodeInfo<String>(rootDataProvider, new TextCell(new SafeHtmlRenderer<String>() { |
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@Override
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public SafeHtml render(String object) { |
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SafeHtmlBuilder builder = new SafeHtmlBuilder();
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render(object, builder); |
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return builder.toSafeHtml();
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} |
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@Override
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public void render(String object, SafeHtmlBuilder builder) { |
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String html = AbstractImagePrototype.create(OtherSharedTreeView.images.othersShared()).getHTML();
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builder.appendHtmlConstant(html).appendHtmlConstant(" ");
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builder.append(OtherSharedTreeView.Templates.INSTANCE.nameSpan(object)); |
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} |
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}), selectionModel2, null);
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} |
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else if (value instanceof String) { |
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if (value.equals(treeTitle)) {
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fetchSharingUsers(null);
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final SingleSelectionModel<String> selectionModel3 = new SingleSelectionModel<String>(); |
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selectionModel3.addSelectionChangeHandler(new Handler() { |
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@Override
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public void onSelectionChange(SelectionChangeEvent event) { |
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if (selectionModel3.getSelectedObject() != null) { |
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app.deselectOthers(app.getOtherSharedTreeView(), selectionModel3); |
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app.applyPermissions(null);
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String username = selectionModel3.getSelectedObject();
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if (userDataProviderMap.get(username) == null) { |
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userDataProviderMap.put(username, new ListDataProvider<Folder>());
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} |
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fetchSharedFiles(username, userDataProviderMap.get(username)); |
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app.showRelevantToolbarButtons(); |
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} |
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else {
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if (app.getSelectedTree().equals(app.getOtherSharedTreeView()))
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app.setSelectedTree(null);
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if (app.getSelectedTree() == null) |
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app.showRelevantToolbarButtons(); |
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} |
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} |
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}); |
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app.addSelectionModel(selectionModel3); |
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return new DefaultNodeInfo<String>(userLevelDataProvider, new TextCell(new SafeHtmlRenderer<String>() { |
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@Override
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public SafeHtml render(String object) { |
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SafeHtmlBuilder builder = new SafeHtmlBuilder();
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render(object, builder); |
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return builder.toSafeHtml();
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} |
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@Override
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public void render(String object, SafeHtmlBuilder builder) { |
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String html = AbstractImagePrototype.create(OtherSharedTreeView.images.user()).getHTML();
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builder.appendHtmlConstant(html).appendHtmlConstant(" ");
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builder.append(OtherSharedTreeView.Templates.INSTANCE.nameSpan(object)); |
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} |
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}), selectionModel3, null);
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} |
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String username = (String) value; |
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if (userDataProviderMap.get(username) == null) { |
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userDataProviderMap.put(username, new ListDataProvider<Folder>());
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} |
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final ListDataProvider<Folder> dataProvider = userDataProviderMap.get(username);
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fetchSharedContainers(username, dataProvider, null);
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return new DefaultNodeInfo<Folder>(dataProvider, folderCell, selectionModel, null); |
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} |
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else {
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final Folder f = (Folder) value;
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if (dataProviderMap.get(f) == null) { |
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dataProviderMap.put(f, new ListDataProvider<Folder>());
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} |
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final ListDataProvider<Folder> dataProvider = dataProviderMap.get(f);
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fetchFolder(f, dataProvider, false);
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return new DefaultNodeInfo<Folder>(dataProvider, folderCell, selectionModel, null); |
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} |
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} |
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private void fetchSharingUsers(final Command callback) { |
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GetRequest<SharingUsers> getSharingUsers = new GetRequest<SharingUsers>(SharingUsers.class, app.getApiPath(), "", "?format=json") { |
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@Override
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public void onSuccess(final SharingUsers _result) { |
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userLevelDataProvider.getList().clear(); |
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userLevelDataProvider.getList().addAll(_result.getUsers()); |
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for (String name : _result.getUsers()) { |
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sharedFiles.put(name, new HashSet<File>()); |
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} |
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Iterator<String> iter = _result.getUsers().iterator(); |
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fetchSharedContainers(iter, callback); |
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} |
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@Override
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public void onError(Throwable t) { |
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GWT.log("Error getting folder", t);
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app.setError(t); |
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if (t instanceof RestException) |
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app.displayError("Error getting folder: " + ((RestException) t).getHttpStatusText());
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else
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app.displayError("System error fetching folder: " + t.getMessage());
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} |
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@Override
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protected void onUnauthorized(Response response) { |
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app.sessionExpired(); |
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} |
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}; |
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getSharingUsers.setHeader("X-Auth-Token", app.getToken());
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Scheduler.get().scheduleDeferred(getSharingUsers); |
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} |
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protected void fetchSharedContainers(final Iterator<String> iter, final Command callback) { |
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if (iter.hasNext()) {
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String username = iter.next();
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if (userDataProviderMap.get(username) == null) { |
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userDataProviderMap.put(username, new ListDataProvider<Folder>());
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} |
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final ListDataProvider<Folder> dataProvider = userDataProviderMap.get(username);
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fetchSharedContainers(username, dataProvider, new Command() {
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@Override
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public void execute() { |
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fetchSharedContainers(iter, callback); |
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} |
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}); |
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} |
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else
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if (callback != null) |
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callback.execute(); |
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} |
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@Override
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public boolean isLeaf(Object o) { |
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if (o == null) |
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return false; |
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else if (o instanceof Folder) { |
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Folder f = (Folder) o; |
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return f.getSubfolders().isEmpty();
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} |
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else {
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if (o.equals(treeTitle))
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return userLevelDataProvider.getList().isEmpty();
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ListDataProvider<Folder> dp = userDataProviderMap.get(o); |
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if (dp != null) |
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return dp.getList().isEmpty();
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return true; |
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} |
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} |
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private void fetchSharedContainers(final String username, final ListDataProvider<Folder> dataProvider, final Command callback) { |
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GetRequest<AccountResource> getUserSharedContainers = new GetRequest<AccountResource>(AccountResource.class, app.getApiPath(), username, "?format=json") { |
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@Override
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public void onSuccess(AccountResource _result) { |
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final ListDataProvider<Folder> tempProvider = new ListDataProvider<Folder>(); |
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Iterator<Folder> iter = _result.getContainers().iterator();
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fetchFolder(username, iter, tempProvider, new Command() {
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@Override
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public void execute() { |
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dataProvider.getList().clear(); |
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dataProvider.getList().addAll(tempProvider.getList()); |
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if (callback != null) |
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callback.execute(); |
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} |
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}); |
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} |
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@Override
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public void onError(Throwable t) { |
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GWT.log("Error getting account", t);
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app.setError(t); |
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if (t instanceof RestException) |
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app.displayError("Error getting account: " + ((RestException) t).getHttpStatusText());
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else
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app.displayError("System error fetching user data: " + t.getMessage());
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} |
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@Override
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protected void onUnauthorized(Response response) { |
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app.sessionExpired(); |
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} |
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}; |
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getUserSharedContainers.setHeader("X-Auth-Token", app.getToken());
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Scheduler.get().scheduleDeferred(getUserSharedContainers); |
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} |
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protected void fetchSharedFiles(final String username, final ListDataProvider<Folder> dataProvider) { |
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GetRequest<AccountResource> getUserSharedContainers = new GetRequest<AccountResource>(AccountResource.class, app.getApiPath(), username, "?format=json") { |
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@Override
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public void onSuccess(AccountResource _result) { |
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final ListDataProvider<Folder> tempProvider = new ListDataProvider<Folder>(); |
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Iterator<Folder> iter = _result.getContainers().iterator();
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sharedFiles.get(username).clear(); |
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fetchFolder(username, iter, tempProvider, new Command() {
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@Override
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public void execute() { |
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dataProvider.getList().clear(); |
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dataProvider.getList().addAll(tempProvider.getList()); |
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app.showFiles(sharedFiles.get(username)); |
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} |
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}); |
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} |
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@Override
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public void onError(Throwable t) { |
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GWT.log("Error getting account", t);
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app.setError(t); |
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if (t instanceof RestException) |
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app.displayError("Error getting account: " + ((RestException) t).getHttpStatusText());
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else
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app.displayError("System error fetching user data: " + t.getMessage());
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} |
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@Override
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protected void onUnauthorized(Response response) { |
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app.sessionExpired(); |
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} |
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}; |
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getUserSharedContainers.setHeader("X-Auth-Token", app.getToken());
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Scheduler.get().scheduleDeferred(getUserSharedContainers); |
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} |
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protected void fetchFolder(final String username, final Iterator<Folder> iter, final ListDataProvider<Folder> dataProvider, final Command callback) { |
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if (iter.hasNext()) {
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final Folder f = iter.next();
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String path = "/" + f.getContainer() + "?format=json&delimiter=/&prefix=" + URL.encodeQueryString(f.getPrefix()); |
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GetRequest<Folder> getFolder = new GetRequest<Folder>(Folder.class, app.getApiPath(), username, path, f) {
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@Override
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public void onSuccess(Folder _result) { |
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if (!_result.isShared()) {
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for (File file : _result.getFiles()) { |
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if (file.isShared())
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sharedFiles.get(username).add(file); |
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} |
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Iterator<Folder> iter2 = _result.getSubfolders().iterator();
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fetchFolder(username, iter2, dataProvider, new Command() {
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@Override
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public void execute() { |
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fetchFolder(username, iter, dataProvider, callback); |
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} |
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}); |
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} |
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else {
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dataProvider.getList().add(_result); |
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fetchFolder(username, iter, dataProvider, callback); |
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} |
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} |
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@Override
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public void onError(Throwable t) { |
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GWT.log("Error getting folder", t);
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app.setError(t); |
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if (t instanceof RestException) |
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app.displayError("Error getting folder: " + ((RestException) t).getHttpStatusText());
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else
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app.displayError("System error fetching folder: " + t.getMessage());
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} |
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@Override
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protected void onUnauthorized(Response response) { |
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app.sessionExpired(); |
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} |
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}; |
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getFolder.setHeader("X-Auth-Token", app.getToken());
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Scheduler.get().scheduleDeferred(getFolder); |
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} |
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else if (callback != null) |
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callback.execute(); |
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} |
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public Folder getSelection() {
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return selectionModel.getSelectedObject();
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} |
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public void updateFolder(Folder folder, boolean showfiles) { |
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if (dataProviderMap.get(folder) == null) { |
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dataProviderMap.put(folder, new ListDataProvider<Folder>());
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} |
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final ListDataProvider<Folder> dataProvider = dataProviderMap.get(folder);
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fetchFolder(folder, dataProvider, showfiles); |
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} |
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public void fetchFolder(final Folder f, final ListDataProvider<Folder> dataProvider, final boolean showfiles) { |
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String path = "/" + f.getContainer() + "?format=json&delimiter=/&prefix=" + URL.encodeQueryString(f.getPrefix()); |
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GetRequest<Folder> getFolder = new GetRequest<Folder>(Folder.class, app.getApiPath(), f.getOwner(), path, f) {
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@Override
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public void onSuccess(final Folder _result) { |
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if (showfiles)
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app.showFiles(_result); |
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Iterator<Folder> iter = _result.getSubfolders().iterator();
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fetchFolder(_result.getOwner(), iter, dataProvider, new Command() {
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@Override
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public void execute() { |
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dataProvider.getList().clear(); |
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dataProvider.getList().addAll(_result.getSubfolders()); |
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app.getOtherSharedTreeView().updateChildren(f); |
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} |
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}); |
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} |
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|
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@Override
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public void onError(Throwable t) { |
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GWT.log("Error getting folder", t);
|
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app.setError(t); |
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if (t instanceof RestException) |
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app.displayError("Error getting folder: " + ((RestException) t).getHttpStatusText());
|
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else
|
| 460 |
app.displayError("System error fetching folder: " + t.getMessage());
|
| 461 |
} |
| 462 |
|
| 463 |
@Override
|
| 464 |
protected void onUnauthorized(Response response) { |
| 465 |
app.sessionExpired(); |
| 466 |
} |
| 467 |
}; |
| 468 |
getFolder.setHeader("X-Auth-Token", app.getToken());
|
| 469 |
Scheduler.get().scheduleDeferred(getFolder); |
| 470 |
} |
| 471 |
|
| 472 |
public void initialize(Command callback) { |
| 473 |
fetchSharingUsers(callback); |
| 474 |
} |
| 475 |
} |