@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; }