Author: adietish Date: 2011-12-09 11:45:41 -0500 (Fri, 09 Dec 2011) New Revision: 37176 Added: trunk/openshift/plugins/org.jboss.tools.openshift.express.ui/src/org/jboss/tools/openshift/express/internal/ui/ValidationStatusControlDecoration.java Log: [JBIDE-10432] added control decoration for project name text field if its empty Added: trunk/openshift/plugins/org.jboss.tools.openshift.express.ui/src/org/jboss/tools/openshift/express/internal/ui/ValidationStatusControlDecoration.java =================================================================== --- trunk/openshift/plugins/org.jboss.tools.openshift.express.ui/src/org/jboss/tools/openshift/express/internal/ui/ValidationStatusControlDecoration.java (rev 0) +++ trunk/openshift/plugins/org.jboss.tools.openshift.express.ui/src/org/jboss/tools/openshift/express/internal/ui/ValidationStatusControlDecoration.java 2011-12-09 16:45:41 UTC (rev 37176) @@ -0,0 +1,89 @@ +/******************************************************************************* + * Copyright (c) 2011 Red Hat, Inc. + * Distributed under license by Red Hat, Inc. All rights reserved. + * This program is made available under the terms of the + * Eclipse Public License v1.0 which accompanies this distribution, + * and is available at http://www.eclipse.org/legal/epl-v10.html + * + * Contributors: + * Red Hat, Inc. - initial API and implementation + ******************************************************************************/ +package org.jboss.tools.openshift.express.internal.ui; + +import org.eclipse.core.databinding.ValidationStatusProvider; +import org.eclipse.core.databinding.observable.value.IObservableValue; +import org.eclipse.core.databinding.observable.value.IValueChangeListener; +import org.eclipse.core.databinding.observable.value.ValueChangeEvent; +import org.eclipse.core.runtime.IStatus; +import org.eclipse.jface.fieldassist.ControlDecoration; +import org.eclipse.jface.fieldassist.FieldDecoration; +import org.eclipse.jface.fieldassist.FieldDecorationRegistry; +import org.eclipse.swt.SWT; +import org.eclipse.swt.events.DisposeEvent; +import org.eclipse.swt.events.DisposeListener; +import org.eclipse.swt.widgets.Control; + +/** + * @author André Dietisheim + */ +public class ValidationStatusControlDecoration { + + private IObservableValue validationStatus; + + public ValidationStatusControlDecoration(ValidationStatusProvider provider) { + this.validationStatus = provider.getValidationStatus(); + } + + public void showFor(Control control) { + ControlDecoration decoration = createDecoration(control); + IValueChangeListener validationStatusListener = onValidationStatusChanged(decoration); + + validationStatus.addValueChangeListener(validationStatusListener); + control.addDisposeListener(onControlDisposed(validationStatusListener)); + + } + + private ControlDecoration createDecoration(Control control) { + ControlDecoration controlDecoration = new ControlDecoration(control, SWT.LEFT | SWT.TOP); + FieldDecoration fieldDecoration = + FieldDecorationRegistry.getDefault().getFieldDecoration(FieldDecorationRegistry.DEC_ERROR); + controlDecoration.setImage(fieldDecoration.getImage()); + if (validationStatus.getValue() instanceof IStatus) { + showDecoration(controlDecoration, (IStatus) validationStatus.getValue()); + } + return controlDecoration; + } + + private DisposeListener onControlDisposed(final IValueChangeListener validationStatusListener) { + return new DisposeListener() { + + @Override + public void widgetDisposed(DisposeEvent e) { + validationStatus.removeValueChangeListener(validationStatusListener); + } + }; + } + + private IValueChangeListener onValidationStatusChanged(final ControlDecoration controlDecoration) { + return new IValueChangeListener() { + + @Override + public void handleValueChange(ValueChangeEvent event) { + if (!(event.diff.getNewValue() instanceof IStatus)) { + return; + } + IStatus validationStatus = (IStatus) event.diff.getNewValue(); + showDecoration(controlDecoration, validationStatus); + } + }; + } + + private void showDecoration(final ControlDecoration controlDecoration, IStatus validationStatus) { + if (validationStatus.isOK()) { + controlDecoration.hide(); + } else { + controlDecoration.show(); + } + } + +} Property changes on: trunk/openshift/plugins/org.jboss.tools.openshift.express.ui/src/org/jboss/tools/openshift/express/internal/ui/ValidationStatusControlDecoration.java ___________________________________________________________________ Added: svn:mime-type + text/plain