1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
|
/*****************************************************************************
* Copyright (c) 2013 CEA LIST.
*
*
* All rights reserved. This program and the accompanying materials
* are made available under the terms of the Eclipse Public License v1.0
* which accompanies this distribution, and is available at
* http://www.eclipse.org/legal/epl-v10.html
*
* Contributors:
* Laurent Wouters laurent.wouters@cea.fr - Initial API and implementation
*
*****************************************************************************/
package org.eclipse.papyrus.infra.core.pluginexplorer;
import java.io.File;
import org.eclipse.jface.dialogs.Dialog;
import org.eclipse.jface.dialogs.IDialogConstants;
import org.eclipse.jface.viewers.ISelectionChangedListener;
import org.eclipse.jface.viewers.IStructuredSelection;
import org.eclipse.jface.viewers.SelectionChangedEvent;
import org.eclipse.jface.viewers.TreeViewer;
import org.eclipse.jface.viewers.Viewer;
import org.eclipse.jface.viewers.ViewerSorter;
import org.eclipse.swt.SWT;
import org.eclipse.swt.events.SegmentEvent;
import org.eclipse.swt.events.SegmentListener;
import org.eclipse.swt.graphics.Point;
import org.eclipse.swt.layout.FillLayout;
import org.eclipse.swt.layout.GridData;
import org.eclipse.swt.layout.GridLayout;
import org.eclipse.swt.widgets.Composite;
import org.eclipse.swt.widgets.Control;
import org.eclipse.swt.widgets.Label;
import org.eclipse.swt.widgets.Shell;
import org.eclipse.swt.widgets.Text;
import org.osgi.framework.Bundle;
/**
* Represents a dialog for the selection of plugins and their resources by a user
* @author Laurent Wouters
*/
public class PluginsContentDialog extends Dialog {
private static final int SIZE_WIDTH = 400;
private static final int SIZE_HEIGHT = 300;
private PluginsContentSelectionValidator validator;
private String title;
private String message;
private Plugin[] plugins;
private TreeViewer tree;
private Text field;
private Object selection;
/**
* Gets the selected element
* @return The element selected by the user
*/
public Object getSelection() {
return selection;
}
/**
* Creates a new dialog
* @param parentShell The parent shell
* @param validator The validator used for validating the user's selection
* @param title The dialog's title
* @param message The dialog's message
*/
public PluginsContentDialog(Shell parentShell, PluginsContentSelectionValidator validator, String title, String message) {
super(parentShell);
this.validator = validator;
this.title = title;
this.message = message;
this.plugins = Plugin.getLoadedPlugins();
}
@Override
protected Control createDialogArea(Composite parent) {
// create composite
Composite composite = (Composite) super.createDialogArea(parent);
GridLayout gridLayout = new GridLayout();
gridLayout.numColumns = 1;
composite.setLayout(gridLayout);
Label label = new Label(composite, SWT.WRAP | SWT.SINGLE);
label.setText(message);
label.setLayoutData(new GridData(GridData.HORIZONTAL_ALIGN_FILL | GridData.GRAB_HORIZONTAL));
field = new Text(composite, SWT.SINGLE | SWT.BORDER);
field.setLayoutData(new GridData(GridData.HORIZONTAL_ALIGN_FILL | GridData.GRAB_HORIZONTAL));
field.addSegmentListener(new SegmentListener(){
public void getSegments(SegmentEvent event) {
if (tree != null)
tree.setContentProvider(new PluginsContentProvider(plugins, field.getText()));
}
});
Composite inner = new Composite(composite, SWT.NONE);
inner.setLayoutData(new GridData(GridData.HORIZONTAL_ALIGN_FILL | GridData.GRAB_HORIZONTAL | GridData.FILL_VERTICAL));
inner.setLayout(new FillLayout());
tree = new TreeViewer(inner, SWT.BORDER | SWT.H_SCROLL | SWT.V_SCROLL);
tree.setLabelProvider(new PluginsContentLabelProvider());
tree.setSorter(getViewerSorter());
tree.setContentProvider(new PluginsContentProvider(plugins, null));
tree.setInput(PluginsContentProvider.treeRoot);
tree.addSelectionChangedListener(new ISelectionChangedListener() {
public void selectionChanged(SelectionChangedEvent event) {
IStructuredSelection s = (IStructuredSelection)event.getSelection();
selection = s.getFirstElement();
resetValidity();
}
});
applyDialogFont(composite);
return composite;
}
@Override
protected Control createButtonBar(Composite parent) {
Control composite = super.createButtonBar(parent);
resetValidity();
return composite;
}
/**
* Enquires about the current validity of the selection and disables or enables the dialog's validation correspondingly
*/
private void resetValidity() {
if (selection == null) {
getButton(IDialogConstants.OK_ID).setEnabled(false);
return;
}
if (validator == null) {
getButton(IDialogConstants.OK_ID).setEnabled(true);
return;
}
boolean valid = false;
if (selection instanceof Plugin)
valid = validator.isValid((Plugin)selection);
else if (selection instanceof PluginEntry)
valid = validator.isValid((PluginEntry)selection);
getButton(IDialogConstants.OK_ID).setEnabled(valid);
}
@Override
protected boolean isResizable() { return true; }
@Override
protected void configureShell(Shell shell) {
super.configureShell(shell);
shell.setSize(SIZE_WIDTH, SIZE_HEIGHT);
Point size = shell.getParent().getShell().getSize();
shell.setLocation((size.x - SIZE_WIDTH)/2, (size.y - SIZE_HEIGHT)/2);
shell.setText(title);
}
/**
* Gets the viewer sorter for this dialog
* @return A viewer sorter
*/
private ViewerSorter getViewerSorter() {
return new ViewerSorter() {
@Override
public int compare(Viewer viewer, Object e1, Object e2) {
if (e1 instanceof Bundle) {
Bundle b1 = (Bundle)e1;
Bundle b2 = (Bundle)e2;
return b1.getSymbolicName().compareTo(b2.getSymbolicName());
} else if (e1 instanceof File) {
File f1 = (File)e1;
File f2 = (File)e2;
return (f1.getName().compareTo(f2.getName()));
}
return super.compare(viewer, e1, e2);
}
};
}
}
|
