org.eclipse.php.composer.ui.controller.ScriptsController.java Source code

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Here is the source code for org.eclipse.php.composer.ui.controller.ScriptsController.java

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/*******************************************************************************
 * Copyright (c) 2012, 2016, 2017 PDT Extension Group and others.
 * 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:
 *     PDT Extension Group - initial API and implementation
 *     Kaloyan Raev - [501269] externalize strings
 *******************************************************************************/
package org.eclipse.php.composer.ui.controller;

import java.util.ArrayList;
import java.util.Arrays;
import java.util.List;

import org.eclipse.jface.viewers.*;
import org.eclipse.php.composer.api.collection.Scripts;
import org.eclipse.php.composer.api.objects.Script;
import org.eclipse.php.composer.api.objects.Script.HandlerValue;
import org.eclipse.php.composer.ui.ComposerUIPluginImages;
import org.eclipse.swt.graphics.Image;
import org.eclipse.swt.widgets.TreeItem;

public class ScriptsController extends StyledCellLabelProvider implements ITreeContentProvider {

    private Scripts scripts;
    private Image eventImage = ComposerUIPluginImages.EVENT.createImage();
    private Image scriptImage = ComposerUIPluginImages.SCRIPT.createImage();

    private TreeViewer viewer;

    public ScriptsController(TreeViewer viewer) {
        this.viewer = viewer;
    }

    public void inputChanged(Viewer viewer, Object oldInput, Object newInput) {
        scripts = (Scripts) newInput;
    }

    public String getText(Object element) {

        if (element instanceof Script) {
            return ((Script) element).getScript();
        }

        if (element instanceof HandlerValue) {
            return ((HandlerValue) element).getAsString();
        }

        return element == null ? "" : element.toString(); //$NON-NLS-1$
    }

    public void update(ViewerCell cell) {
        Object obj = cell.getElement();
        String text = getText(obj);

        StyledString styledString = new StyledString(text);

        if (obj instanceof Script) {
            Script script = (Script) obj;
            styledString.append(" (" + script.size() + ")", StyledString.COUNTER_STYLER); //$NON-NLS-1$ //$NON-NLS-2$
            cell.setImage(eventImage);
        } else {
            cell.setImage(scriptImage);
        }

        cell.setText(styledString.toString());
        cell.setStyleRanges(styledString.getStyleRanges());

        super.update(cell);
    }

    @Override
    public Object[] getElements(Object inputElement) {
        return getChildren(inputElement);
    }

    @Override
    public Object[] getChildren(Object parentElement) {
        if (parentElement instanceof Scripts) {
            Scripts scripts = (Scripts) parentElement;
            List<Script> children = new ArrayList<Script>();

            for (String event : Scripts.getEvents()) {
                if (scripts.has(event)) {
                    children.add(scripts.get(event));
                }
            }

            return children.toArray();
        } else if (parentElement instanceof Script) {
            Script script = (Script) parentElement;
            String event = script.getScript();
            if (Arrays.asList(Scripts.getEvents()).contains(event)) {
                return script.toArray();
            }
        }

        return new Object[] {};
    }

    @Override
    public Object getParent(Object element) {
        TreeItem item = null;
        for (TreeItem ri : viewer.getTree().getItems()) {
            for (TreeItem i : ri.getItems()) {
                if (i.getData() == element) {
                    item = i;
                    break;
                }
            }
        }

        if (item != null) {
            TreeItem parent = item.getParentItem();
            if (parent == null) {
                return scripts;
            }

            if (parent.getData() != null) {
                return parent.getData();
            }
        }

        return null;
    }

    @Override
    public boolean hasChildren(Object element) {
        return getChildren(element).length > 0;
    }
}