com.centurylink.mdw.plugin.designer.dialogs.WorkflowElementDeleteDialog.java Source code

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Here is the source code for com.centurylink.mdw.plugin.designer.dialogs.WorkflowElementDeleteDialog.java

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/*
 * Copyright (C) 2017 CenturyLink, Inc.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
package com.centurylink.mdw.plugin.designer.dialogs;

import java.util.List;

import org.eclipse.jface.dialogs.IDialogConstants;
import org.eclipse.jface.viewers.ArrayContentProvider;
import org.eclipse.jface.viewers.LabelProvider;
import org.eclipse.swt.SWT;
import org.eclipse.swt.graphics.Image;
import org.eclipse.swt.widgets.Button;
import org.eclipse.swt.widgets.Composite;
import org.eclipse.swt.widgets.Control;
import org.eclipse.swt.widgets.Shell;
import org.eclipse.ui.dialogs.ListDialog;

import com.centurylink.mdw.plugin.designer.model.WorkflowProcess;
import com.centurylink.mdw.plugin.designer.model.WorkflowElement;

public class WorkflowElementDeleteDialog extends ListDialog {
    private static final int PROMPT = 888;

    private List<WorkflowElement> elements;

    public List<WorkflowElement> getElements() {
        return elements;
    }

    private boolean includeInstances;

    public boolean isIncludeInstances() {
        return includeInstances;
    }

    private Button includeInstancesCheckbox;

    public WorkflowElementDeleteDialog(Shell shell, List<WorkflowElement> workflowElements) {
        super(shell);
        this.elements = workflowElements;

        setContentProvider(new ArrayContentProvider());

        int width = 0;
        // calculate dialog width
        for (WorkflowElement workflowElement : workflowElements) {
            if (workflowElement.getLabel().length() > width)
                width = workflowElement.getLabel().length();
        }
        setLabelProvider(new LabelProvider() {
            public Image getImage(Object element) {
                return ((WorkflowElement) element).getIconImage();
            }

            public String getText(Object element) {
                return ((WorkflowElement) element).getLabel();
            }
        });

        setInput(workflowElements);
        setTitle("Confirm Delete");
        setMessage("Delete the following workflow elements?");
        if (width != 0)
            setWidthInChars(width + 2);
    }

    @Override
    protected Control createDialogArea(Composite parent) {
        Composite composite = (Composite) super.createDialogArea(parent);
        composite.getShell().setText("Delete Workflow Elements");

        boolean showIncludeInstances = false;
        for (WorkflowElement workflowElement : elements) {
            if (workflowElement instanceof WorkflowProcess) {
                showIncludeInstances = true;
                break;
            }
        }
        if (showIncludeInstances) {
            includeInstancesCheckbox = new Button(composite, SWT.CHECK | SWT.LEFT);
            includeInstancesCheckbox.setText("Include instances if they exist");
        }

        return composite;
    }

    @Override
    protected void okPressed() {
        if (includeInstancesCheckbox != null)
            includeInstances = includeInstancesCheckbox.getSelection();
        super.okPressed();
    }

    @Override
    protected void createButtonsForButtonBar(Composite parent) {
        createButton(parent, IDialogConstants.OK_ID, IDialogConstants.OK_LABEL, true);
        createButton(parent, PROMPT, "Prompt", false);
        createButton(parent, IDialogConstants.CANCEL_ID, IDialogConstants.CANCEL_LABEL, false);
    }

    @Override
    protected void buttonPressed(int buttonId) {
        if (buttonId == PROMPT) {
            setReturnCode(PROMPT);
            close();
        } else {
            super.buttonPressed(buttonId);
        }
    }
}