@Override
protected void checkState() {
super.checkState();
if (!isValid()) {
return;
}
}
/**
* The field editor preference page implementation of a <code>PreferencePage</code> method loads
* all the field editors with their default values.
*/
@Override
protected void performDefaults() {
if (fields != null) {
Iterator<FieldEditor> e = fields.iterator();
while (e.hasNext()) {
FieldEditor pe = e.next();
pe.loadDefault();
}
}
// Force a recalculation of my error state.
checkState();
super.performDefaults();
}
@Override
protected void checkState() {
super.checkState();
File gradleHome = new File(gradleHomeField.getStringValue());
// should I perform validations here?
if (!GradlePluginUtils.isFileValidGradleInstallation(gradleHome) && shouldUseGradleHome) {
setValid(false);
setErrorMessage(gradleHomeField.getErrorMessage());
return;
}
setErrorMessage(null);
setValid(true);
}
/**
* The field editor preference page implementation of this <code>IPreferencePage</code> (and
* <code>IPropertyChangeListener</code>) method intercepts <code>IS_VALID</code> events but passes
* other events on to its superclass.
*/
public void propertyChange(PropertyChangeEvent event) {
if (event.getProperty().equals(FieldEditor.IS_VALID)) {
boolean newValue = ((Boolean) event.getNewValue()).booleanValue();
// If the new value is true then we must check all field editors.
// If it is false, then the page is invalid in any case.
if (newValue) {
checkState();
} else {
invalidFieldEditor = (FieldEditor) event.getSource();
setValid(newValue);
}
}
}
/* (non-Javadoc)
* Method declared on PreferencePage.
*/
@Override
protected Control createContents(Composite parent) {
fieldEditorParent = new Composite(parent, SWT.NULL);
GridLayout layout = new GridLayout();
layout.numColumns = 1;
layout.marginHeight = 0;
layout.marginWidth = 0;
fieldEditorParent.setLayout(layout);
fieldEditorParent.setFont(parent.getFont());
createFieldEditors();
if (style == GRID) {
adjustGridLayout();
}
initialize();
checkState();
return fieldEditorParent;
}