com.aptana.ui.dialogs.ProjectSelectionDialog.java Source code

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Here is the source code for com.aptana.ui.dialogs.ProjectSelectionDialog.java

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/*******************************************************************************
 * Copyright (c) 2000, 2006 IBM Corporation 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:
 *     IBM Corporation - initial API and implementation
 *******************************************************************************/
package com.aptana.ui.dialogs;

import java.util.Set;

import org.eclipse.core.resources.IProject;
import org.eclipse.core.resources.ResourcesPlugin;
import org.eclipse.core.runtime.CoreException;
import org.eclipse.jface.dialogs.Dialog;
import org.eclipse.jface.dialogs.IDialogSettings;
import org.eclipse.jface.viewers.ArrayContentProvider;
import org.eclipse.jface.viewers.DoubleClickEvent;
import org.eclipse.jface.viewers.IDoubleClickListener;
import org.eclipse.jface.viewers.ISelectionChangedListener;
import org.eclipse.jface.viewers.IStructuredSelection;
import org.eclipse.jface.viewers.SelectionChangedEvent;
import org.eclipse.jface.viewers.TableViewer;
import org.eclipse.jface.viewers.Viewer;
import org.eclipse.jface.viewers.ViewerFilter;
import org.eclipse.swt.SWT;
import org.eclipse.swt.events.SelectionEvent;
import org.eclipse.swt.events.SelectionListener;
import org.eclipse.swt.graphics.Font;
import org.eclipse.swt.layout.GridData;
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.SelectionStatusDialog;
import org.eclipse.ui.model.WorkbenchLabelProvider;

import com.aptana.core.logging.IdeLog;
import com.aptana.core.util.CollectionsUtil;
import com.aptana.ui.epl.UIEplPlugin;

/**
 * ProjectSelectionDialog
 */
public class ProjectSelectionDialog extends SelectionStatusDialog {

    // the visual selection widget group
    private TableViewer fTableViewer;
    private Set<IProject> fProjectsWithSpecifics;

    // sizing constants
    private final static int SIZING_SELECTION_WIDGET_HEIGHT = 250;
    private final static int SIZING_SELECTION_WIDGET_WIDTH = 300;

    private final static String DIALOG_SETTINGS_SHOW_ALL = "ProjectSelectionDialog.show_all"; //$NON-NLS-1$

    private ViewerFilter fFilter;
    private Set<String> natureIDs;

    /**
     * Constructs a new ProjectSelectionDialog.
     * 
     * @param parentShell
     * @param projectsWithSpecifics
     * @param natureId
     */
    public ProjectSelectionDialog(Shell parentShell, Set<IProject> projectsWithSpecifics, Set<String> natureIDs) {
        super(parentShell);
        setTitle(EplMessages.ProjectSelectionDialog_title);
        setMessage(EplMessages.ProjectSelectionDialog_message);
        fProjectsWithSpecifics = projectsWithSpecifics;
        this.natureIDs = natureIDs;
        int shellStyle = getShellStyle();
        setShellStyle(shellStyle | SWT.MAX | SWT.RESIZE);

        fFilter = new ViewerFilter() {
            public boolean select(Viewer viewer, Object parentElement, Object element) {
                return fProjectsWithSpecifics.contains(element);
            }
        };

    }

    /**
     * @see org.eclipse.jface.dialogs.Dialog#createDialogArea(org.eclipse.swt.widgets.Composite)
     */
    protected Control createDialogArea(Composite parent) {
        // page group
        Composite composite = (Composite) super.createDialogArea(parent);

        Font font = parent.getFont();
        composite.setFont(font);

        createMessageArea(composite);

        fTableViewer = new TableViewer(composite, SWT.H_SCROLL | SWT.V_SCROLL | SWT.BORDER);
        fTableViewer.addSelectionChangedListener(new ISelectionChangedListener() {
            public void selectionChanged(SelectionChangedEvent event) {
                doSelectionChanged(((IStructuredSelection) event.getSelection()).toArray());
            }
        });
        fTableViewer.addDoubleClickListener(new IDoubleClickListener() {
            public void doubleClick(DoubleClickEvent event) {
                okPressed();
            }
        });
        GridData data = new GridData(SWT.FILL, SWT.FILL, true, true);
        data.heightHint = SIZING_SELECTION_WIDGET_HEIGHT;
        data.widthHint = SIZING_SELECTION_WIDGET_WIDTH;
        fTableViewer.getTable().setLayoutData(data);

        fTableViewer.setLabelProvider(new WorkbenchLabelProvider());
        fTableViewer.setContentProvider(ArrayContentProvider.getInstance());

        fTableViewer.getControl().setFont(font);

        if (!CollectionsUtil.isEmpty(natureIDs)) {
            fTableViewer.addFilter(new ViewerFilter() {
                public boolean select(Viewer viewer, Object parentElement, Object element) {
                    if (element instanceof IProject) {
                        IProject project = (IProject) element;
                        if (project.isAccessible()) {
                            try {
                                String[] allNatures = project.getDescription().getNatureIds();
                                for (String nature : allNatures) {
                                    if (natureIDs.contains(nature)) {
                                        return true;
                                    }
                                }
                            } catch (CoreException e) {
                                IdeLog.logError(UIEplPlugin.getDefault(), e);
                                return false;
                            }
                        }
                    }
                    return false;
                }
            });
        }

        Button checkbox = new Button(composite, SWT.CHECK);
        checkbox.setText(EplMessages.ProjectSelectionDialog_filter);
        checkbox.setLayoutData(new GridData(SWT.BEGINNING, SWT.CENTER, true, false));
        checkbox.addSelectionListener(new SelectionListener() {
            public void widgetSelected(SelectionEvent e) {
                updateFilter(((Button) e.widget).getSelection());
            }

            public void widgetDefaultSelected(SelectionEvent e) {
                updateFilter(((Button) e.widget).getSelection());
            }
        });
        IDialogSettings dialogSettings = UIEplPlugin.getDefault().getDialogSettings();
        boolean doFilter = !dialogSettings.getBoolean(DIALOG_SETTINGS_SHOW_ALL)
                && !fProjectsWithSpecifics.isEmpty();
        checkbox.setSelection(doFilter);
        updateFilter(doFilter);

        IProject[] input = ResourcesPlugin.getWorkspace().getRoot().getProjects();
        fTableViewer.setInput(input);
        doSelectionChanged(new Object[0]);
        Dialog.applyDialogFont(composite);
        return composite;
    }

    /**
     * @param selected
     */
    protected void updateFilter(boolean selected) {
        if (selected) {
            fTableViewer.addFilter(fFilter);
        } else {
            fTableViewer.removeFilter(fFilter);
        }
        UIEplPlugin.getDefault().getDialogSettings().put(DIALOG_SETTINGS_SHOW_ALL, !selected);
    }

    private void doSelectionChanged(Object[] objects) {
        if (objects.length != 1) {
            setSelectionResult(null);
        } else {
            setSelectionResult(objects);
        }
    }

    /**
     * @see org.eclipse.ui.dialogs.SelectionStatusDialog#computeResult()
     */
    protected void computeResult() {
    }
}