root / web_client / src / gr / grnet / pithos / web / client / AbstractPropertiesDialog.java @ a39e5b47
History | View | Annotate | Download (5.5 kB)
1 |
/*
|
---|---|
2 |
* Copyright 2011 GRNET S.A. All rights reserved.
|
3 |
*
|
4 |
* Redistribution and use in source and binary forms, with or
|
5 |
* without modification, are permitted provided that the following
|
6 |
* conditions are met:
|
7 |
*
|
8 |
* 1. Redistributions of source code must retain the above
|
9 |
* copyright notice, this list of conditions and the following
|
10 |
* disclaimer.
|
11 |
*
|
12 |
* 2. Redistributions in binary form must reproduce the above
|
13 |
* copyright notice, this list of conditions and the following
|
14 |
* disclaimer in the documentation and/or other materials
|
15 |
* provided with the distribution.
|
16 |
*
|
17 |
* THIS SOFTWARE IS PROVIDED BY GRNET S.A. ``AS IS'' AND ANY EXPRESS
|
18 |
* OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
|
19 |
* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
|
20 |
* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL GRNET S.A OR
|
21 |
* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
|
22 |
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
|
23 |
* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
|
24 |
* USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
|
25 |
* AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
|
26 |
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
|
27 |
* ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
|
28 |
* POSSIBILITY OF SUCH DAMAGE.
|
29 |
*
|
30 |
* The views and conclusions contained in the software and
|
31 |
* documentation are those of the authors and should not be
|
32 |
* interpreted as representing official policies, either expressed
|
33 |
* or implied, of GRNET S.A.
|
34 |
*/
|
35 |
package gr.grnet.pithos.web.client; |
36 |
|
37 |
import gr.grnet.pithos.web.client.rest.GetCommand; |
38 |
import gr.grnet.pithos.web.client.rest.resource.TagsResource; |
39 |
|
40 |
import java.util.List; |
41 |
|
42 |
import com.google.gwt.core.client.GWT; |
43 |
import com.google.gwt.dom.client.NativeEvent; |
44 |
import com.google.gwt.event.dom.client.ClickEvent; |
45 |
import com.google.gwt.event.dom.client.ClickHandler; |
46 |
import com.google.gwt.event.dom.client.KeyCodes; |
47 |
import com.google.gwt.user.client.DeferredCommand; |
48 |
import com.google.gwt.user.client.Event.NativePreviewEvent; |
49 |
import com.google.gwt.user.client.ui.Anchor; |
50 |
import com.google.gwt.user.client.ui.DialogBox; |
51 |
import com.google.gwt.user.client.ui.FlowPanel; |
52 |
import com.google.gwt.user.client.ui.Label; |
53 |
import com.google.gwt.user.client.ui.TabPanel; |
54 |
import com.google.gwt.user.client.ui.TextBox; |
55 |
|
56 |
/**
|
57 |
* Abstract class, parent of all 'File properties' dialog boxes.
|
58 |
*
|
59 |
*/
|
60 |
public abstract class AbstractPropertiesDialog extends DialogBox { |
61 |
|
62 |
protected static final String MULTIPLE_VALUES_TEXT = "(Multiple values)"; |
63 |
|
64 |
/**
|
65 |
* Text box with the tags associated with the file
|
66 |
*/
|
67 |
protected TextBox tags = new TextBox(); |
68 |
|
69 |
protected String initialTagText; |
70 |
|
71 |
/**
|
72 |
* A FlowPanel with all user tags
|
73 |
*/
|
74 |
protected FlowPanel allTagsContent;
|
75 |
|
76 |
|
77 |
protected TabPanel inner = null; |
78 |
|
79 |
/**
|
80 |
* The widget's constructor.
|
81 |
*
|
82 |
*/
|
83 |
public AbstractPropertiesDialog() {
|
84 |
|
85 |
// Enable IE selection for the dialog (must disable it upon closing it)
|
86 |
Pithos.enableIESelection(); |
87 |
|
88 |
setAnimationEnabled(true);
|
89 |
|
90 |
} |
91 |
/**
|
92 |
* Retrieves all user tags from the server and updates the FlowPanel
|
93 |
*/
|
94 |
protected void updateTags() { |
95 |
GetCommand<TagsResource> tc = new GetCommand<TagsResource>(TagsResource.class, Pithos.get().getCurrentUserResource().getTagsPath(),null) { |
96 |
|
97 |
@Override
|
98 |
public void onComplete() { |
99 |
allTagsContent.clear(); |
100 |
TagsResource tagr = getResult(); |
101 |
List<String> userTags = tagr.getTags(); |
102 |
Anchor tag = null;
|
103 |
for(String usrTag : userTags){ |
104 |
tag = new Anchor(usrTag.toString(), false); |
105 |
tag.addStyleName("pithos-tag");
|
106 |
allTagsContent.add(tag); |
107 |
Label separator = new Label(", "); |
108 |
separator.addStyleName("pithos-tag");
|
109 |
allTagsContent.add(separator); |
110 |
tag.addClickHandler( new ClickHandler() {
|
111 |
|
112 |
@Override
|
113 |
public void onClick(ClickEvent event) { |
114 |
String existing = tags.getText();
|
115 |
if (MULTIPLE_VALUES_TEXT.equals(existing)) existing = ""; |
116 |
String newTag = ((Anchor) event.getSource()).getText().trim();
|
117 |
// insert the new tag only if it is not in the list
|
118 |
// already
|
119 |
if (existing.indexOf(newTag) == -1 && !existing.trim().endsWith(newTag)) |
120 |
tags.setText(existing.trim() |
121 |
+ (existing.length() > 0 ? ", " : "") |
122 |
+ newTag); |
123 |
} |
124 |
}); |
125 |
} |
126 |
} |
127 |
|
128 |
@Override
|
129 |
public void onError(Throwable t) { |
130 |
GWT.log("", t);
|
131 |
Pithos.get().displayError("Unable to fetch user tags");
|
132 |
} |
133 |
}; |
134 |
DeferredCommand.addCommand(tc); |
135 |
|
136 |
} |
137 |
|
138 |
/**
|
139 |
* Accepts any change and updates the file
|
140 |
*
|
141 |
*/
|
142 |
protected abstract void accept(); |
143 |
|
144 |
@Override
|
145 |
@SuppressWarnings("fallthrough") |
146 |
protected void onPreviewNativeEvent(NativePreviewEvent preview) { |
147 |
super.onPreviewNativeEvent(preview);
|
148 |
|
149 |
NativeEvent evt = preview.getNativeEvent(); |
150 |
if (evt.getType().equals("keydown")) |
151 |
// Use the popup's key preview hooks to close the dialog when either
|
152 |
// enter or escape is pressed.
|
153 |
switch (evt.getKeyCode()) {
|
154 |
case KeyCodes.KEY_ENTER:
|
155 |
accept(); |
156 |
case KeyCodes.KEY_ESCAPE:
|
157 |
closeDialog(); |
158 |
break;
|
159 |
} |
160 |
} |
161 |
|
162 |
|
163 |
|
164 |
public void selectTab(int _tab) { |
165 |
inner.selectTab(_tab); |
166 |
} |
167 |
|
168 |
|
169 |
/**
|
170 |
* Enables IE selection prevention and hides the dialog
|
171 |
* (we disable the prevention on creation of the dialog)
|
172 |
*/
|
173 |
public void closeDialog() { |
174 |
Pithos.preventIESelection(); |
175 |
hide(); |
176 |
} |
177 |
} |