|
1
11 package org.eclipse.jdt.internal.ui.refactoring;
12
13 import org.eclipse.core.runtime.IStatus;
14 import org.eclipse.core.runtime.Status;
15
16 import org.eclipse.jdt.core.JavaConventions;
17
18 import org.eclipse.swt.SWT;
19 import org.eclipse.swt.events.ModifyEvent;
20 import org.eclipse.swt.events.ModifyListener;
21 import org.eclipse.swt.layout.GridData;
22 import org.eclipse.swt.layout.GridLayout;
23 import org.eclipse.swt.widgets.Composite;
24 import org.eclipse.swt.widgets.Control;
25 import org.eclipse.swt.widgets.Label;
26 import org.eclipse.swt.widgets.Shell;
27 import org.eclipse.swt.widgets.Text;
28
29 import org.eclipse.jface.dialogs.StatusDialog;
30
31 import org.eclipse.ltk.core.refactoring.RefactoringStatus;
32
33 import org.eclipse.jdt.internal.corext.refactoring.Checks;
34 import org.eclipse.jdt.internal.corext.refactoring.ParameterInfo;
35 import org.eclipse.jdt.internal.corext.refactoring.RefactoringCoreMessages;
36 import org.eclipse.jdt.internal.corext.refactoring.StubTypeContext;
37 import org.eclipse.jdt.internal.corext.refactoring.TypeContextChecker;
38 import org.eclipse.jdt.internal.corext.refactoring.structure.ChangeSignatureRefactoring;
39 import org.eclipse.jdt.internal.corext.util.Messages;
40
41 import org.eclipse.jdt.internal.ui.JavaPlugin;
42 import org.eclipse.jdt.internal.ui.dialogs.TextFieldNavigationHandler;
43 import org.eclipse.jdt.internal.ui.refactoring.contentassist.ControlContentAssistHelper;
44 import org.eclipse.jdt.internal.ui.refactoring.contentassist.JavaTypeCompletionProcessor;
45
46 public class ParameterEditDialog extends StatusDialog {
47
48 private final ParameterInfo fParameter;
49 private final boolean fEditType;
50 private final boolean fEditDefault;
51 private final StubTypeContext fContext;
52 private Text fType;
53 private Text fName;
54 private Text fDefaultValue;
55
56
60 public ParameterEditDialog(Shell parentShell, ParameterInfo parameter, boolean canEditType, boolean canEditDefault, StubTypeContext context) {
61 super(parentShell);
62 fParameter= parameter;
63 fEditType= canEditType;
64 fEditDefault= canEditDefault;
65 fContext= context;
66 }
67
68 protected void configureShell(Shell newShell) {
69 super.configureShell(newShell);
70 newShell.setText(RefactoringMessages.ParameterEditDialog_title);
71 }
72
73 protected Control createDialogArea(Composite parent) {
74 Composite result= (Composite)super.createDialogArea(parent);
75 GridLayout layout= (GridLayout)result.getLayout();
76 layout.numColumns= 2;
77 Label label;
78 GridData gd;
79
80 label= new Label(result, SWT.NONE);
81 String  newName = fParameter.getNewName();
82 if (newName.length() == 0)
83 label.setText(RefactoringMessages.ParameterEditDialog_message_new);
84 else
85 label.setText(Messages.format(RefactoringMessages.ParameterEditDialog_message, newName));
86 gd= new GridData(GridData.FILL_HORIZONTAL);
87 gd.horizontalSpan= 2;
88 label.setLayoutData(gd);
89
90 if (fEditType) {
91 label= new Label(result, SWT.NONE);
92 label.setText(RefactoringMessages.ParameterEditDialog_type);
93 fType= new Text(result, SWT.BORDER);
94 gd= new GridData(GridData.FILL_HORIZONTAL);
95 fType.setLayoutData(gd);
96 fType.setText(fParameter.getNewTypeName());
97 fType.addModifyListener(
98 new ModifyListener() {
99 public void modifyText(ModifyEvent e) {
100 validate((Text)e.widget);
101 }
102 });
103 TextFieldNavigationHandler.install(fType);
104 JavaTypeCompletionProcessor processor= new JavaTypeCompletionProcessor(true, false);
105 processor.setCompletionContext(fContext.getCuHandle(), fContext.getBeforeString(), fContext.getAfterString());
106 ControlContentAssistHelper.createTextContentAssistant(fType, processor);
107 }
108
109 label= new Label(result, SWT.NONE);
110 fName= new Text(result, SWT.BORDER);
111 initializeDialogUnits(fName);
112 label.setText(RefactoringMessages.ParameterEditDialog_name);
113 gd= new GridData(GridData.FILL_HORIZONTAL);
114 gd.widthHint= convertWidthInCharsToPixels(45);
115 fName.setLayoutData(gd);
116 fName.setText(newName);
117 fName.addModifyListener(
118 new ModifyListener() {
119 public void modifyText(ModifyEvent e) {
120 validate((Text)e.widget);
121 }
122 });
123 TextFieldNavigationHandler.install(fName);
124
125 if (fEditDefault && fParameter.isAdded()) {
126 label= new Label(result, SWT.NONE);
127 label.setText(RefactoringMessages.ParameterEditDialog_defaultValue);
128 fDefaultValue= new Text(result, SWT.BORDER);
129 gd= new GridData(GridData.FILL_HORIZONTAL);
130 fDefaultValue.setLayoutData(gd);
131 fDefaultValue.setText(fParameter.getDefaultValue());
132 fDefaultValue.addModifyListener(
133 new ModifyListener() {
134 public void modifyText(ModifyEvent e) {
135 validate((Text)e.widget);
136 }
137 });
138 TextFieldNavigationHandler.install(fDefaultValue);
139 }
140 applyDialogFont(result);
141 return result;
142 }
143
144 protected void okPressed() {
145 if (fType != null) {
146 fParameter.setNewTypeName(fType.getText());
147 }
148 fParameter.setNewName(fName.getText());
149 if (fDefaultValue != null) {
150 fParameter.setDefaultValue(fDefaultValue.getText());
151 }
152 super.okPressed();
153 }
154
155 private void validate(Text first) {
156 IStatus[] result= new IStatus[3];
157 if (first == fType) {
158 result[0]= validateType();
159 result[1]= validateName();
160 result[2]= validateDefaultValue();
161 } else if (first == fName) {
162 result[0]= validateName();
163 result[1]= validateType();
164 result[2]= validateDefaultValue();
165 } else {
166 result[0]= validateDefaultValue();
167 result[1]= validateName();
168 result[2]= validateType();
169 }
170 for (int i= 0; i < result.length; i++) {
171 IStatus status= result[i];
172 if (status != null && !status.isOK()) {
173 updateStatus(status);
174 return;
175 }
176 }
177 updateStatus(createOkStatus());
178 }
179
180 private IStatus validateType() {
181 if (fType == null)
182 return null;
183 String type= fType.getText();
184
185 RefactoringStatus status= TypeContextChecker.checkParameterTypeSyntax(type, fContext.getCuHandle().getJavaProject());
186 if (status == null || status.isOK())
187 return createOkStatus();
188 if (status.hasError())
189 return createErrorStatus(status.getEntryWithHighestSeverity().getMessage());
190 else
191 return createWarningStatus(status.getEntryWithHighestSeverity().getMessage());
192 }
193
194 private IStatus validateName() {
195 if (fName == null)
196 return null;
197 String text= fName.getText();
198 if (text.length() == 0)
199 return createErrorStatus(RefactoringMessages.ParameterEditDialog_name_error);
200 IStatus status= JavaConventions.validateFieldName(text);
201 if (status.matches(IStatus.ERROR))
202 return status;
203 if (! Checks.startsWithLowerCase(text))
204 return createWarningStatus(RefactoringCoreMessages.ExtractTempRefactoring_convention);
205 return createOkStatus();
206 }
207
208 private IStatus validateDefaultValue() {
209 if (fDefaultValue == null)
210 return null;
211 String defaultValue= fDefaultValue.getText();
212 if (defaultValue.length() == 0)
213 return createErrorStatus(RefactoringMessages.ParameterEditDialog_defaultValue_error);
214 if (ChangeSignatureRefactoring.isValidExpression(defaultValue))
215 return createOkStatus();
216 String msg= Messages.format(RefactoringMessages.ParameterEditDialog_defaultValue_invalid, new String []{defaultValue});
217 return createErrorStatus(msg);
218
219 }
220
221 private Status createOkStatus() {
222 return new Status(IStatus.OK, JavaPlugin.getPluginId(), IStatus.OK, "", null); }
224
225 private Status createWarningStatus(String message) {
226 return new Status(IStatus.WARNING, JavaPlugin.getPluginId(), IStatus.WARNING, message, null);
227 }
228
229 private Status createErrorStatus(String message) {
230 return new Status(IStatus.ERROR, JavaPlugin.getPluginId(), IStatus.ERROR, message, null);
231 }
232 }
233 |
Popular Tags |
Java API By Example, From Geeks To Geeks.