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/*******************************************************************************
* Copyright (c) 2016 Obeo.
* All rights reserved. This program and the accompanying materials
* are 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:
* Obeo - initial API and implementation
*******************************************************************************/
package org.eclipse.eef.ide.ui.internal.widgets.quickfix;
import java.lang.reflect.InvocationTargetException;
import java.text.MessageFormat;
import org.eclipse.core.runtime.IProgressMonitor;
import org.eclipse.eef.EEFValidationFixDescription;
import org.eclipse.eef.EEFValidationRuleDescription;
import org.eclipse.eef.EefPackage;
import org.eclipse.eef.core.api.controllers.InvalidValidationRuleResultData;
import org.eclipse.eef.ide.ui.internal.EEFIdeUiPlugin;
import org.eclipse.eef.ide.ui.internal.Messages;
import org.eclipse.emf.ecore.EAttribute;
import org.eclipse.jface.dialogs.Dialog;
import org.eclipse.jface.dialogs.IDialogConstants;
import org.eclipse.jface.dialogs.IMessageProvider;
import org.eclipse.jface.viewers.ISelection;
import org.eclipse.jface.viewers.ISelectionChangedListener;
import org.eclipse.jface.viewers.IStructuredSelection;
import org.eclipse.jface.viewers.SelectionChangedEvent;
import org.eclipse.jface.viewers.StructuredSelection;
import org.eclipse.jface.viewers.TableViewer;
import org.eclipse.jface.wizard.WizardPage;
import org.eclipse.swt.SWT;
import org.eclipse.swt.layout.FormAttachment;
import org.eclipse.swt.layout.FormData;
import org.eclipse.swt.layout.FormLayout;
import org.eclipse.swt.layout.GridData;
import org.eclipse.swt.widgets.Composite;
import org.eclipse.swt.widgets.Label;
import org.eclipse.ui.forms.IMessage;
/**
* The wizard page used to launch a quick fix.
*
* @author sbegaudeau
*/
public class EEFQuickFixPage extends WizardPage {
/**
* The table viewer containing all the quick fixes available.
*/
private TableViewer quickFixesList;
/**
* The validation rule.
*/
private EEFValidationRuleDescription validationRule;
/**
* The invalid validation result data.
*/
private InvalidValidationRuleResultData data;
/**
* The selected {@link IMessage}.
*/
private IMessage selectedMessage;
/**
* The constructor.
*
* @param message
* The message
* @param validationRule
* The validation rule
* @param data
* The invalid validation result data
*/
public EEFQuickFixPage(IMessage message, EEFValidationRuleDescription validationRule, InvalidValidationRuleResultData data) {
super(message.getMessage());
this.setTitle(Messages.EEFQuickFixPage_title);
this.setDescription(MessageFormat.format(Messages.EEFQuickFixPage_description, message.getMessage()));
this.validationRule = validationRule;
this.data = data;
this.selectedMessage = message;
}
/**
* Returns the selected {@link IMessage}.
*
* @return The selected {@link IMessage}
*/
public IMessage getSelectedMessage() {
return this.selectedMessage;
}
/**
* {@inheritDoc}
*
* @see org.eclipse.jface.dialogs.IDialogPage#createControl(org.eclipse.swt.widgets.Composite)
*/
@Override
public void createControl(Composite parent) {
this.initializeDialogUnits(parent);
Composite control = new Composite(parent, SWT.NONE);
control.setLayoutData(new GridData(SWT.FILL, SWT.FILL, true, true));
this.setControl(control);
FormLayout layout = new FormLayout();
layout.marginHeight = this.convertVerticalDLUsToPixels(IDialogConstants.VERTICAL_MARGIN);
layout.marginWidth = this.convertHorizontalDLUsToPixels(IDialogConstants.HORIZONTAL_MARGIN);
layout.spacing = this.convertHorizontalDLUsToPixels(IDialogConstants.HORIZONTAL_SPACING);
control.setLayout(layout);
Label label = new Label(control, SWT.NONE);
label.setText(Messages.EEFQuickFixPage_label);
label.setLayoutData(new FormData());
// Create the list for the quick fixes
this.quickFixesList = new TableViewer(control, SWT.BORDER | SWT.SINGLE | SWT.V_SCROLL);
this.quickFixesList.setContentProvider(new EEFQuickFixTableContentProvider());
this.quickFixesList.setLabelProvider(new EEFQuickFixTableLabelProvider());
this.quickFixesList.setComparator(new EEFQuickFixTableComparator());
this.quickFixesList.addSelectionChangedListener(new ISelectionChangedListener() {
@Override
public void selectionChanged(SelectionChangedEvent event) {
EEFQuickFixPage.this.setPageComplete(true);
}
});
FormData listData = new FormData();
listData.top = new FormAttachment(label, 0);
listData.left = new FormAttachment(0);
listData.right = new FormAttachment(100, 0);
listData.height = convertHeightInCharsToPixels(10);
this.quickFixesList.getControl().setLayoutData(listData);
this.quickFixesList.setInput(this.validationRule);
Dialog.applyDialogFont(control);
// Select the first quick fix available
Object firstElement = this.quickFixesList.getElementAt(0);
if (firstElement != null) {
this.quickFixesList.setSelection(new StructuredSelection(firstElement));
} else {
this.setMessage(Messages.EEFQuickFixWizard_noQuickFixAvailable, IMessageProvider.ERROR);
}
}
/**
* {@inheritDoc}
*
* @see org.eclipse.jface.wizard.WizardPage#isPageComplete()
*/
@Override
public boolean isPageComplete() {
return this.quickFixesList != null && this.validationRule.getFixes().size() > 0 && !this.quickFixesList.getSelection().isEmpty();
}
/**
* Launch the selected quick fix in the list.
*
* @param monitor
* The progress monitor
*/
public void performFinish(IProgressMonitor monitor) {
try {
this.getWizard().getContainer().run(false, true, (progressMonitor) -> {
progressMonitor.beginTask(Messages.EEFQuickFixWizard_applyQuickFix, 1);
this.getShell().getDisplay().readAndDispatch();
if (progressMonitor.isCanceled()) {
return;
}
ISelection selection = this.quickFixesList.getSelection();
if (selection instanceof IStructuredSelection) {
IStructuredSelection structuredSelection = (IStructuredSelection) selection;
// Only one quick fix can be selected
Object element = structuredSelection.getFirstElement();
if (element instanceof EEFValidationFixDescription) {
// Run the quick fix using the given eval
EEFValidationFixDescription validationFix = (EEFValidationFixDescription) element;
EAttribute expressionEAttribute = EefPackage.Literals.EEF_VALIDATION_FIX_DESCRIPTION__FIX_EXPRESSION;
this.data.getEditingContextAdapter().performModelChange(() -> {
this.data.getEval().logIfBlank(expressionEAttribute).call(validationFix.getFixExpression());
});
}
}
progressMonitor.worked(1);
});
} catch (InvocationTargetException e) {
EEFIdeUiPlugin.getPlugin().error(e.getMessage(), e);
} catch (InterruptedException e) {
EEFIdeUiPlugin.getPlugin().error(e.getMessage(), e);
}
}
}
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