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11 package org.eclipse.update.internal.ui.views;
12 import java.io.PrintWriter  ;
13 import java.io.StringWriter ;
14 import java.net.URL ;
15 import java.util.Iterator ;
16
17 import org.eclipse.core.runtime.CoreException;
18 import org.eclipse.jface.viewers.*;
19 import org.eclipse.swt.widgets.*;
20 import org.eclipse.ui.*;
21 import org.eclipse.ui.forms.events.*;
22 import org.eclipse.ui.forms.widgets.*;
23 import org.eclipse.update.configuration.ILocalSite;
24 import org.eclipse.update.core.*;
25 import org.eclipse.update.internal.ui.*;
26 import org.eclipse.update.internal.ui.model.*;
27 import org.eclipse.update.operations.*;
28
29 public class ConfigurationPreview implements IUpdateModelChangedListener {
30 private ScrolledForm form;
31 private ConfigurationView view;
32 private FormToolkit toolkit;
33 private FormText desc;
34 private FormText taskList;
35 private IPreviewTask[] tasks;
36
37 public ConfigurationPreview(ConfigurationView view) {
38 this.view = view;
39 UpdateModel model = UpdateUI.getDefault().getUpdateModel();
40 model.addUpdateModelChangedListener(this);
41 }
42 public void dispose() {
43 UpdateModel model = UpdateUI.getDefault().getUpdateModel();
44 model.removeUpdateModelChangedListener(this);
45 toolkit.dispose();
46 }
47
48 public void objectsAdded(Object parent, Object [] children) {
49 }
50 public void objectsRemoved(Object parent, Object [] children) {
51 }
52 public void objectChanged(Object object, String property) {
53 }
54
55 public Control getControl() {
56 return form;
57 }
58
59 public void createControl(Composite parent) {
60 toolkit = new FormToolkit(parent.getDisplay());
61 form = toolkit.createScrolledForm(parent);
62 TableWrapLayout layout = new TableWrapLayout();
63 form.getBody().setLayout(layout);
64 layout.leftMargin = 10;
65 layout.rightMargin = 5;
66 layout.topMargin = 10;
67 layout.horizontalSpacing = 0;
68 layout.verticalSpacing = 20;
69 IHyperlinkListener urlAction = new HyperlinkAdapter() {
70 public void linkActivated(HyperlinkEvent e) {
71 String url = (String ) e.getHref();
72 if (url != null)
73 UpdateUI.showURL(url);
74 }
75 };
76 IHyperlinkListener taskAction = new HyperlinkAdapter() {
77 public void linkActivated(HyperlinkEvent e) {
78 String indexArg = (String ) e.getHref();
79 try {
80 int index = Integer.parseInt(indexArg);
81 if (tasks != null)
82 tasks[index].run();
83 } catch (NumberFormatException ex) {
84 }
85 }
86 };
87 desc = toolkit.createFormText(form.getBody(), true);
89 desc.setHyperlinkSettings(toolkit.getHyperlinkGroup());
90 desc.addHyperlinkListener(urlAction);
91 desc.setText("", false, false); TableWrapData td = new TableWrapData(TableWrapData.FILL_GRAB);
93 desc.setLayoutData(td);
94 taskList = toolkit.createFormText(form.getBody(), false);
95 taskList.setHyperlinkSettings(toolkit.getHyperlinkGroup());
96 taskList.addHyperlinkListener(taskAction);
97 taskList.setText("", false, false); td = new TableWrapData(TableWrapData.FILL_GRAB);
100 taskList.setLayoutData(td);
101 PlatformUI.getWorkbench().getHelpSystem().setHelp(parent, "org.eclipse.update.ui.SiteForm"); }
103 public void setSelection(IStructuredSelection selection) {
104 Object object = selection.getFirstElement();
105 tasks = view.getPreviewTasks(object);
106 String title = getObjectLabel(selection.size()>1?selection:object);
107 form.setText(title);
108 String description = getObjectDescription(selection.size()>1?selection:object);
109 boolean tags = description.startsWith("<form>"); desc.setText(description, tags, !tags);
111 String taskText = getTasksText();
112 taskList.setText(taskText, true, false);
113 form.reflow(true);
114 }
115 private String getObjectLabel(Object object) {
116 if (object == null)
117 return ""; TreeViewer viewer = view.getTreeViewer();
119 LabelProvider provider = (LabelProvider) viewer.getLabelProvider();
120 if (object instanceof IStructuredSelection) {
121 StringWriter sw = new StringWriter ();
122 PrintWriter pw = new PrintWriter (sw);
123 int counter=1;
124 for (Iterator iter = ((IStructuredSelection)object).iterator();
125 iter.hasNext();) {
126 pw.println(counter+". "+provider.getText(iter.next())); counter++;
128 }
129 return sw.toString();
130 }
131 return provider.getText(object);
132 }
133 private String getObjectDescription(Object object) {
134 if (object instanceof IFeatureAdapter) {
135 return getFeatureDescription((IFeatureAdapter) object);
136 }
137 if (object instanceof IConfiguredSiteAdapter) {
138 return UpdateUIMessages.ConfigurationPreviewForm_install;
139 }
140 if (object instanceof ILocalSite) {
141 return UpdateUIMessages.ConfigurationPreviewForm_configDescription;
142 }
143 return ""; }
145 private String getFeatureDescription(IFeatureAdapter adapter) {
146 try {
147 IFeature feature = adapter.getFeature(null);
148 IURLEntry entry = feature.getDescription();
149 if (entry != null) {
150 String text = entry.getAnnotation();
151 if (text != null) {
152 URL url = entry.getURL();
153 if (url == null)
154 return text;
155 else {
156 String link = " <a HREF=\"" + url + "\">"+UpdateUIMessages.MoreInfoGenerator_moreInfo+"</a>"; String fullText = "<form><p>" + text + link + "</p></form>"; return fullText;
161 }
162 }
163 }
164 } catch (CoreException e) {
165 }
166 return ""; }
168 private String getTasksText() {
169 if (tasks == null || tasks.length == 0)
170 return "<form/>"; boolean hasEnabledTasks = false;
172 for (int i = 0; i < tasks.length; i++) {
173 if (tasks[i].isEnabled()) {
174 hasEnabledTasks = true;
175 break;
176 }
177 }
178 if (!hasEnabledTasks)
179 return "<form/>"; StringBuffer buf = new StringBuffer ();
181 buf.append("<form><p><b>"); buf.append(UpdateUIMessages.ConfigurationPreviewForm_AvailableTasks);
183 buf.append("</b></p>"); for (int i = 0; i < tasks.length; i++) {
185 IPreviewTask task = tasks[i];
186 if (task.isEnabled() == false)
187 continue;
188 buf.append("<li style=\"text\" indent=\"0\"><a HREF=\"" + i + "\">" + task.getName() + "</a></li>"); buf.append("<li style=\"text\" indent=\"10\" vspace=\"false\">" + task.getDescription() + "</li>"); }
193 buf.append("</form>"); return buf.toString();
195 }
196 }
197 |
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