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
|
/*******************************************************************************
* Copyright (c) 2006-2011 Gluster, Inc. <http://www.gluster.com>
* This file is part of Gluster Management Console.
*
* Gluster Management Console is free software; you can redistribute
* it and/or modify it under the terms of the GNU General Public
* License as published by the Free Software Foundation; either
* version 3 of the License, or (at your option) any later version.
*
* Gluster Management Console is distributed in the hope that it
* will be useful, but WITHOUT ANY WARRANTY; without even the
* implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
* PURPOSE. See the GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see
* <http://www.gnu.org/licenses/>.
*******************************************************************************/
package org.gluster.storage.management.console.views;
import org.eclipse.core.runtime.IAdapterFactory;
import org.eclipse.core.runtime.Platform;
import org.eclipse.jface.action.MenuManager;
import org.eclipse.jface.viewers.ISelection;
import org.eclipse.jface.viewers.StructuredSelection;
import org.eclipse.jface.viewers.TreeSelection;
import org.eclipse.jface.viewers.TreeViewer;
import org.eclipse.swt.SWT;
import org.eclipse.swt.widgets.Composite;
import org.eclipse.swt.widgets.Menu;
import org.eclipse.ui.ISelectionListener;
import org.eclipse.ui.IWorkbenchPart;
import org.eclipse.ui.model.BaseWorkbenchContentProvider;
import org.eclipse.ui.model.WorkbenchLabelProvider;
import org.eclipse.ui.part.ViewPart;
import org.gluster.storage.management.console.GlusterDataModelManager;
import org.gluster.storage.management.console.toolbar.GlusterToolbarManager;
import org.gluster.storage.management.core.model.DefaultClusterListener;
import org.gluster.storage.management.core.model.Entity;
import org.gluster.storage.management.core.model.Event;
import org.gluster.storage.management.core.model.GlusterDataModel;
import org.gluster.storage.management.core.model.GlusterServer;
import org.gluster.storage.management.core.model.Volume;
public class NavigationView extends ViewPart implements ISelectionListener {
public static final String ID = NavigationView.class.getName();
private TreeViewer treeViewer;
private IAdapterFactory adapterFactory = new ClusterAdapterFactory();
private GlusterToolbarManager toolbarManager;
private Entity entity;
private GlusterViewsManager viewsManager;
private DefaultClusterListener clusterListener;
@Override
public void createPartControl(Composite parent) {
createNavigationTree(parent);
// Create the views and toolbar managers
toolbarManager = new GlusterToolbarManager(getSite().getWorkbenchWindow());
viewsManager = new GlusterViewsManager(getSite().getPage());
// listen to selection events to update views/toolbar accordingly
getSite().getPage().addSelectionListener(this);
}
private void createNavigationTree(Composite parent) {
GlusterDataModel model = GlusterDataModelManager.getInstance().getModel();
Platform.getAdapterManager().registerAdapters(adapterFactory, Entity.class);
treeViewer = new TreeViewer(parent, SWT.BORDER | SWT.MULTI | SWT.V_SCROLL);
treeViewer.setLabelProvider(WorkbenchLabelProvider.getDecoratingWorkbenchLabelProvider());
treeViewer.setContentProvider(new BaseWorkbenchContentProvider());
treeViewer.setInput(model);
treeViewer.expandAll();
// select the first element by default
treeViewer.setSelection(new StructuredSelection(model.getChildren().get(0)));
setupContextMenu();
// register as selection provider so that other views can listen to any selection events on the tree
getSite().setSelectionProvider(treeViewer);
clusterListener = new DefaultClusterListener() {
public void modelChanged() {
treeViewer.refresh(true);
}
@Override
public void volumeChanged(Volume volume, Event event) {
super.volumeChanged(volume, event);
treeViewer.update(volume, null);
if (volume == entity) {
// this makes sure that the toolbar buttons get updated according to new status
selectEntity(volume);
}
}
@Override
public void volumeDeleted(Volume volume) {
super.volumeDeleted(volume);
if(volume == entity) {
// volume selected was deleted. select the root element in the tree.
selectEntity(GlusterDataModelManager.getInstance().getModel().getCluster());
}
}
@Override
public void serverRemoved(GlusterServer server) {
super.serverRemoved(server);
if(server == entity) {
// server selected was removed. select the root element in the tree.
selectEntity(GlusterDataModelManager.getInstance().getModel().getCluster());
}
};
};
GlusterDataModelManager.getInstance().addClusterListener(clusterListener);
}
private void setupContextMenu() {
MenuManager menuManager = new MenuManager("&Gluster", "gluster.context.menu");
Menu contextMenu = menuManager.createContextMenu(treeViewer.getControl());
treeViewer.getTree().setMenu(contextMenu);
getSite().registerContextMenu(menuManager, treeViewer);
}
public void selectEntity(Entity entity) {
treeViewer.setSelection(new StructuredSelection(entity));
treeViewer.reveal(entity);
setFocus(); // this ensures that the "selection changed" event gets fired
}
@Override
public void setFocus() {
treeViewer.getControl().setFocus();
}
@Override
public void selectionChanged(IWorkbenchPart part, ISelection selection) {
if (part instanceof NavigationView && selection instanceof TreeSelection) {
Entity selectedEntity = (Entity) ((TreeSelection) selection).getFirstElement();
if (selectedEntity != null && selectedEntity != entity) {
entity = selectedEntity;
// update views and toolbar buttons visibility based on selected entity
viewsManager.updateViews(entity);
toolbarManager.updateToolbar(entity);
// Opening of other views may cause navigation tree to lose focus; get it back.
setFocus();
}
}
}
@Override
public void dispose() {
super.dispose();
GlusterDataModelManager.getInstance().removeClusterListener(clusterListener);
}
}
|
