root / src / gr / grnet / pithos / web / client / foldertree / FolderTreeViewModel.java @ 0c665202
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1 | 6084aa02 | Christos Stathis | /*
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2 | 63366925 | Christos Stathis | * Copyright 2011 GRNET S.A. All rights reserved.
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3 | 63366925 | Christos Stathis | *
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4 | 63366925 | Christos Stathis | * Redistribution and use in source and binary forms, with or
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5 | 63366925 | Christos Stathis | * without modification, are permitted provided that the following
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6 | 63366925 | Christos Stathis | * conditions are met:
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7 | 63366925 | Christos Stathis | *
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8 | 63366925 | Christos Stathis | * 1. Redistributions of source code must retain the above
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9 | 63366925 | Christos Stathis | * copyright notice, this list of conditions and the following
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10 | 63366925 | Christos Stathis | * disclaimer.
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11 | 63366925 | Christos Stathis | *
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12 | 63366925 | Christos Stathis | * 2. Redistributions in binary form must reproduce the above
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13 | 63366925 | Christos Stathis | * copyright notice, this list of conditions and the following
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14 | 63366925 | Christos Stathis | * disclaimer in the documentation and/or other materials
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15 | 63366925 | Christos Stathis | * provided with the distribution.
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16 | 63366925 | Christos Stathis | *
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17 | 63366925 | Christos Stathis | * THIS SOFTWARE IS PROVIDED BY GRNET S.A. ``AS IS'' AND ANY EXPRESS
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18 | 63366925 | Christos Stathis | * OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
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19 | 63366925 | Christos Stathis | * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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20 | 63366925 | Christos Stathis | * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL GRNET S.A OR
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21 | 63366925 | Christos Stathis | * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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22 | 63366925 | Christos Stathis | * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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23 | 63366925 | Christos Stathis | * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
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24 | 63366925 | Christos Stathis | * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
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25 | 63366925 | Christos Stathis | * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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26 | 63366925 | Christos Stathis | * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
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27 | 63366925 | Christos Stathis | * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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28 | 63366925 | Christos Stathis | * POSSIBILITY OF SUCH DAMAGE.
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29 | 63366925 | Christos Stathis | *
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30 | 63366925 | Christos Stathis | * The views and conclusions contained in the software and
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31 | 63366925 | Christos Stathis | * documentation are those of the authors and should not be
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32 | 63366925 | Christos Stathis | * interpreted as representing official policies, either expressed
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33 | 63366925 | Christos Stathis | * or implied, of GRNET S.A.
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34 | 6084aa02 | Christos Stathis | */
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35 | 6084aa02 | Christos Stathis | |
36 | 6084aa02 | Christos Stathis | package gr.grnet.pithos.web.client.foldertree; |
37 | 6084aa02 | Christos Stathis | |
38 | 7811b9d1 | Christos Stathis | import gr.grnet.pithos.web.client.FolderContextMenu; |
39 | 7811b9d1 | Christos Stathis | import gr.grnet.pithos.web.client.Pithos; |
40 | 7811b9d1 | Christos Stathis | import gr.grnet.pithos.web.client.foldertree.FolderTreeView.Templates; |
41 | 7811b9d1 | Christos Stathis | import gr.grnet.pithos.web.client.rest.GetRequest; |
42 | 7811b9d1 | Christos Stathis | import gr.grnet.pithos.web.client.rest.RestException; |
43 | 7811b9d1 | Christos Stathis | |
44 | 4ca9cb37 | Christos Stathis | import java.util.ArrayList; |
45 | 0ec61115 | Christos Stathis | import java.util.ConcurrentModificationException; |
46 | 7811b9d1 | Christos Stathis | import java.util.HashMap; |
47 | 7811b9d1 | Christos Stathis | import java.util.Iterator; |
48 | 7811b9d1 | Christos Stathis | import java.util.Map; |
49 | 7811b9d1 | Christos Stathis | |
50 | 447407c8 | Christos Stathis | import com.google.gwt.cell.client.AbstractCell; |
51 | 447407c8 | Christos Stathis | import com.google.gwt.cell.client.Cell; |
52 | 6084aa02 | Christos Stathis | import com.google.gwt.core.client.GWT; |
53 | 6084aa02 | Christos Stathis | import com.google.gwt.core.client.Scheduler; |
54 | 447407c8 | Christos Stathis | import com.google.gwt.event.dom.client.ContextMenuEvent; |
55 | 9539e23d | Christos Stathis | import com.google.gwt.http.client.Response; |
56 | f5023f13 | Christos Stathis | import com.google.gwt.http.client.URL; |
57 | 7b28ae07 | Christos Stathis | import com.google.gwt.safehtml.shared.SafeHtml; |
58 | 447407c8 | Christos Stathis | import com.google.gwt.safehtml.shared.SafeHtmlBuilder; |
59 | 5ebc9312 | Christos Stathis | import com.google.gwt.user.client.Command; |
60 | 447407c8 | Christos Stathis | import com.google.gwt.user.client.ui.AbstractImagePrototype; |
61 | 6084aa02 | Christos Stathis | import com.google.gwt.view.client.ListDataProvider; |
62 | 6084aa02 | Christos Stathis | import com.google.gwt.view.client.SingleSelectionModel; |
63 | 6084aa02 | Christos Stathis | import com.google.gwt.view.client.TreeViewModel; |
64 | 6084aa02 | Christos Stathis | |
65 | 6084aa02 | Christos Stathis | public class FolderTreeViewModel implements TreeViewModel { |
66 | 6084aa02 | Christos Stathis | |
67 | 7811b9d1 | Christos Stathis | protected Pithos app;
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68 | a7c43f26 | Christos Stathis | |
69 | 447407c8 | Christos Stathis | private Cell<Folder> folderCell = new AbstractCell<Folder>(ContextMenuEvent.getType().getName()) { |
70 | 447407c8 | Christos Stathis | |
71 | 447407c8 | Christos Stathis | @Override
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72 | ebead1b5 | Christos Stathis | public void render(Context context, Folder folder, SafeHtmlBuilder safeHtmlBuilder) { |
73 | 05cf9e5b | Christos Stathis | String html;
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74 | 7b28ae07 | Christos Stathis | SafeHtml name; |
75 | 7b28ae07 | Christos Stathis | if (folder.isHome()) {
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76 | 7b28ae07 | Christos Stathis | html = AbstractImagePrototype.create(FolderTreeView.images.home()).getHTML(); |
77 | a92f9b30 | Christos Stathis | name = Templates.INSTANCE.nameSpan("Pithos"); |
78 | 7b28ae07 | Christos Stathis | } |
79 | 7b28ae07 | Christos Stathis | else if (folder.isTrash()) { |
80 | 7b28ae07 | Christos Stathis | html = AbstractImagePrototype.create(FolderTreeView.images.trash()).getHTML(); |
81 | 7b28ae07 | Christos Stathis | name = Templates.INSTANCE.nameSpan("Trash"); |
82 | 7b28ae07 | Christos Stathis | } |
83 | 7b28ae07 | Christos Stathis | else {
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84 | 04f50dbe | Christos Stathis | html = AbstractImagePrototype.create(folder.isShared() ? FolderTreeView.images.myShared() : FolderTreeView.images.folderYellow()).getHTML(); |
85 | 7b28ae07 | Christos Stathis | name = Templates.INSTANCE.nameSpan(folder.getName());
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86 | 7b28ae07 | Christos Stathis | } |
87 | a7b6e464 | Christos Stathis | safeHtmlBuilder.appendHtmlConstant(html).appendHtmlConstant(" ");
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88 | 7b28ae07 | Christos Stathis | safeHtmlBuilder.append(name); |
89 | 447407c8 | Christos Stathis | } |
90 | 447407c8 | Christos Stathis | |
91 | 447407c8 | Christos Stathis | @Override
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92 | ebead1b5 | Christos Stathis | public void onBrowserEvent(Cell.Context context, com.google.gwt.dom.client.Element parent, Folder folder, com.google.gwt.dom.client.NativeEvent event, com.google.gwt.cell.client.ValueUpdater<Folder> valueUpdater) { |
93 | 447407c8 | Christos Stathis | if (event.getType().equals(ContextMenuEvent.getType().getName())) {
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94 | b651e67f | Christos Stathis | FolderTreeViewModel.this.selectionModel.setSelected(folder, true);
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95 | 02d3a335 | Christos Stathis | FolderContextMenu menu = new FolderContextMenu(app, FolderTreeView.images, app.getSelectedTree(), folder);
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96 | 31477486 | Christos Stathis | menu.setPopupPosition(event.getClientX(), event.getClientY()); |
97 | 31477486 | Christos Stathis | menu.show(); |
98 | 447407c8 | Christos Stathis | } |
99 | 447407c8 | Christos Stathis | } |
100 | 447407c8 | Christos Stathis | }; |
101 | 447407c8 | Christos Stathis | |
102 | 7811b9d1 | Christos Stathis | protected ListDataProvider<Folder> rootDataProvider = new ListDataProvider<Folder>(); |
103 | 7c818c14 | Christos Stathis | |
104 | cf49bbc9 | Christos Stathis | private Map<Folder, ListDataProvider<Folder>> dataProviderMap = new HashMap<Folder, ListDataProvider<Folder>>(); |
105 | b651e67f | Christos Stathis | |
106 | 7811b9d1 | Christos Stathis | protected SingleSelectionModel<Folder> selectionModel; |
107 | 875a0179 | Christos Stathis | |
108 | a7c43f26 | Christos Stathis | public FolderTreeViewModel(Pithos _app, SingleSelectionModel<Folder> selectionModel) { |
109 | a7c43f26 | Christos Stathis | app = _app; |
110 | 875a0179 | Christos Stathis | this.selectionModel = selectionModel;
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111 | 6084aa02 | Christos Stathis | } |
112 | 7c818c14 | Christos Stathis | |
113 | 6084aa02 | Christos Stathis | @Override
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114 | 6084aa02 | Christos Stathis | public <T> NodeInfo<?> getNodeInfo(T value) {
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115 | 6084aa02 | Christos Stathis | if (value == null) { |
116 | 6084aa02 | Christos Stathis | Folder f = new Folder("Loading ..."); |
117 | 7c818c14 | Christos Stathis | rootDataProvider.getList().add(f); |
118 | 447407c8 | Christos Stathis | return new DefaultNodeInfo<Folder>(rootDataProvider, folderCell, selectionModel, null); |
119 | 6084aa02 | Christos Stathis | } |
120 | 7811b9d1 | Christos Stathis | final Folder f = (Folder) value;
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121 | 7811b9d1 | Christos Stathis | if (dataProviderMap.get(f) == null) { |
122 | cf49bbc9 | Christos Stathis | dataProviderMap.put(f, new ListDataProvider<Folder>());
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123 | 7811b9d1 | Christos Stathis | } |
124 | cf49bbc9 | Christos Stathis | final ListDataProvider<Folder> dataProvider = dataProviderMap.get(f);
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125 | fb0060d7 | Christos Stathis | //This prevents the loading indicator
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126 | fb0060d7 | Christos Stathis | // dataProvider.getList().clear();
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127 | fb0060d7 | Christos Stathis | // dataProvider.getList().addAll(f.getSubfolders());
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128 | cf49bbc9 | Christos Stathis | fetchFolder(f, dataProvider, false, null); |
129 | 7811b9d1 | Christos Stathis | return new DefaultNodeInfo<Folder>(dataProvider, folderCell, selectionModel, null); |
130 | 6084aa02 | Christos Stathis | } |
131 | 6084aa02 | Christos Stathis | |
132 | 6084aa02 | Christos Stathis | @Override
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133 | 6084aa02 | Christos Stathis | public boolean isLeaf(Object o) { |
134 | 6084aa02 | Christos Stathis | if (o instanceof Folder) { |
135 | 6084aa02 | Christos Stathis | Folder f = (Folder) o; |
136 | 6084aa02 | Christos Stathis | return f.getSubfolders().isEmpty();
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137 | 6084aa02 | Christos Stathis | } |
138 | 6084aa02 | Christos Stathis | return false; |
139 | 6084aa02 | Christos Stathis | } |
140 | 6084aa02 | Christos Stathis | |
141 | 0ec61115 | Christos Stathis | private native void log(String msg) /*-{ |
142 | 0ec61115 | Christos Stathis | $wnd.console.log(msg);
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143 | 0ec61115 | Christos Stathis | }-*/;
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144 | 0ec61115 | Christos Stathis | |
145 | 7811b9d1 | Christos Stathis | protected void fetchFolder(final Iterator<Folder> iter, final Command callback) { |
146 | 8e61880b | Christos Stathis | if (iter.hasNext()) {
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147 | 8e61880b | Christos Stathis | final Folder f = iter.next();
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148 | 8e61880b | Christos Stathis | |
149 | f5023f13 | Christos Stathis | String path = "/" + f.getContainer() + "?format=json&delimiter=/&prefix=" + URL.encodeQueryString(f.getPrefix()); |
150 | 63ee965c | Christos Stathis | GetRequest<Folder> getFolder = new GetRequest<Folder>(Folder.class, app.getApiPath(), f.getOwner(), path, f) {
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151 | 8e61880b | Christos Stathis | @Override
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152 | ebead1b5 | Christos Stathis | public void onSuccess(Folder _result) { |
153 | 5ebc9312 | Christos Stathis | fetchFolder(iter, callback); |
154 | 8e61880b | Christos Stathis | } |
155 | 8e61880b | Christos Stathis | |
156 | 8e61880b | Christos Stathis | @Override
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157 | 8e61880b | Christos Stathis | public void onError(Throwable t) { |
158 | 8e61880b | Christos Stathis | GWT.log("Error getting folder", t);
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159 | 3f8622d4 | Christos Stathis | app.setError(t); |
160 | 8e61880b | Christos Stathis | if (t instanceof RestException) |
161 | a7c43f26 | Christos Stathis | app.displayError("Error getting folder: " + ((RestException) t).getHttpStatusText());
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162 | 8e61880b | Christos Stathis | else
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163 | a7c43f26 | Christos Stathis | app.displayError("System error fetching folder: " + t.getMessage());
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164 | 8e61880b | Christos Stathis | } |
165 | 9539e23d | Christos Stathis | |
166 | 9539e23d | Christos Stathis | @Override
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167 | 9539e23d | Christos Stathis | protected void onUnauthorized(Response response) { |
168 | 9539e23d | Christos Stathis | app.sessionExpired(); |
169 | 9539e23d | Christos Stathis | } |
170 | 8e61880b | Christos Stathis | }; |
171 | 875a0179 | Christos Stathis | getFolder.setHeader("X-Auth-Token", app.getToken());
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172 | 8e61880b | Christos Stathis | Scheduler.get().scheduleDeferred(getFolder); |
173 | 8e61880b | Christos Stathis | } |
174 | 5ebc9312 | Christos Stathis | else if (callback != null) |
175 | 5ebc9312 | Christos Stathis | callback.execute(); |
176 | 5ebc9312 | Christos Stathis | } |
177 | 5ebc9312 | Christos Stathis | |
178 | 5fab761b | Christos Stathis | public void initialize(final AccountResource account, final Command callback) { |
179 | 4ca9cb37 | Christos Stathis | Iterator<Folder> iter = account.getContainers().listIterator();
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180 | 5ebc9312 | Christos Stathis | fetchFolder(iter, new Command() {
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181 | 5ebc9312 | Christos Stathis | @Override
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182 | 5ebc9312 | Christos Stathis | public void execute() { |
183 | 5ebc9312 | Christos Stathis | rootDataProvider.getList().clear(); |
184 | 067bbb04 | Christos Stathis | Folder t = null;
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185 | 067bbb04 | Christos Stathis | for (Folder c : account.getContainers()) {
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186 | 067bbb04 | Christos Stathis | if (c.isHome())
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187 | 067bbb04 | Christos Stathis | rootDataProvider.getList().add(0, c); //Pithos is always first |
188 | 067bbb04 | Christos Stathis | else if (c.isTrash()) |
189 | 067bbb04 | Christos Stathis | t = c; //Keep trash for adding in the end
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190 | 067bbb04 | Christos Stathis | else
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191 | 067bbb04 | Christos Stathis | rootDataProvider.getList().add(c); |
192 | 067bbb04 | Christos Stathis | } |
193 | 067bbb04 | Christos Stathis | if (t != null) |
194 | 067bbb04 | Christos Stathis | rootDataProvider.getList().add(t); |
195 | 5ebc9312 | Christos Stathis | selectionModel.setSelected(rootDataProvider.getList().get(0), true); |
196 | 5fab761b | Christos Stathis | if (callback != null) |
197 | 5fab761b | Christos Stathis | callback.execute(); |
198 | 05cf9e5b | Christos Stathis | } |
199 | 5ebc9312 | Christos Stathis | }); |
200 | 7c818c14 | Christos Stathis | } |
201 | 875a0179 | Christos Stathis | |
202 | 875a0179 | Christos Stathis | public Folder getSelection() {
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203 | 875a0179 | Christos Stathis | return selectionModel.getSelectedObject();
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204 | 875a0179 | Christos Stathis | } |
205 | b651e67f | Christos Stathis | |
206 | cf49bbc9 | Christos Stathis | public void updateFolder(final Folder folder, boolean showfiles, final Command callback) { |
207 | b651e67f | Christos Stathis | if (dataProviderMap.get(folder) == null) { |
208 | cf49bbc9 | Christos Stathis | dataProviderMap.put(folder, new ListDataProvider<Folder>());
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209 | b651e67f | Christos Stathis | } |
210 | cf49bbc9 | Christos Stathis | final ListDataProvider<Folder> dataProvider = dataProviderMap.get(folder);
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211 | adb597b8 | Christos Stathis | fetchFolder(folder, dataProvider, showfiles, new Command() {
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212 | adb597b8 | Christos Stathis | |
213 | adb597b8 | Christos Stathis | @Override
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214 | adb597b8 | Christos Stathis | public void execute() { |
215 | adb597b8 | Christos Stathis | app.getFolderTreeView().openFolder(folder); |
216 | adb597b8 | Christos Stathis | if (callback != null) |
217 | adb597b8 | Christos Stathis | callback.execute(); |
218 | adb597b8 | Christos Stathis | } |
219 | adb597b8 | Christos Stathis | }); |
220 | b651e67f | Christos Stathis | } |
221 | b651e67f | Christos Stathis | |
222 | cf49bbc9 | Christos Stathis | public void fetchFolder(final Folder f, final ListDataProvider<Folder> dataProvider, final boolean showfiles, final Command callback) { |
223 | f5023f13 | Christos Stathis | String path = "/" + f.getContainer() + "?format=json&delimiter=/&prefix=" + URL.encodeQueryString(f.getPrefix()); |
224 | f5023f13 | Christos Stathis | GetRequest<Folder> getFolder = new GetRequest<Folder>(Folder.class, app.getApiPath(), f.getOwner(), path, f) {
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225 | b651e67f | Christos Stathis | @Override
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226 | f5023f13 | Christos Stathis | public void onSuccess(final Folder _result) { |
227 | f5023f13 | Christos Stathis | if (showfiles)
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228 | f5023f13 | Christos Stathis | app.showFiles(_result); |
229 | 4ca9cb37 | Christos Stathis | Iterator<Folder> iter = new ArrayList<Folder>(_result.getSubfolders()).listIterator(); |
230 | f5023f13 | Christos Stathis | fetchFolder(iter, new Command() {
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231 | b651e67f | Christos Stathis | @Override
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232 | f5023f13 | Christos Stathis | public void execute() { |
233 | cf49bbc9 | Christos Stathis | dataProvider.getList().clear(); |
234 | cf49bbc9 | Christos Stathis | dataProvider.getList().addAll(_result.getSubfolders()); |
235 | 5fab761b | Christos Stathis | // app.getFolderTreeView().updateChildren(f);
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236 | f5023f13 | Christos Stathis | if (callback != null) |
237 | f5023f13 | Christos Stathis | callback.execute(); |
238 | b651e67f | Christos Stathis | } |
239 | f5023f13 | Christos Stathis | }); |
240 | f5023f13 | Christos Stathis | } |
241 | 9539e23d | Christos Stathis | |
242 | f5023f13 | Christos Stathis | @Override
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243 | f5023f13 | Christos Stathis | public void onError(Throwable t) { |
244 | f5023f13 | Christos Stathis | GWT.log("Error getting folder", t);
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245 | 3f8622d4 | Christos Stathis | app.setError(t); |
246 | f5023f13 | Christos Stathis | if (t instanceof RestException) |
247 | f5023f13 | Christos Stathis | app.displayError("Error getting folder: " + ((RestException) t).getHttpStatusText());
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248 | f5023f13 | Christos Stathis | else
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249 | f5023f13 | Christos Stathis | app.displayError("System error fetching folder: " + t.getMessage());
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250 | b651e67f | Christos Stathis | } |
251 | f5023f13 | Christos Stathis | |
252 | f5023f13 | Christos Stathis | @Override
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253 | f5023f13 | Christos Stathis | protected void onUnauthorized(Response response) { |
254 | f5023f13 | Christos Stathis | app.sessionExpired(); |
255 | f5023f13 | Christos Stathis | } |
256 | f5023f13 | Christos Stathis | }; |
257 | f5023f13 | Christos Stathis | getFolder.setHeader("X-Auth-Token", app.getToken());
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258 | f5023f13 | Christos Stathis | Scheduler.get().scheduleDeferred(getFolder); |
259 | b651e67f | Christos Stathis | } |
260 | 6084aa02 | Christos Stathis | } |