org.rssowl.ui.internal.dialogs.FacebookCredentialDialog.java Source code

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Here is the source code for org.rssowl.ui.internal.dialogs.FacebookCredentialDialog.java

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/*   **********************************************************************  **
 **   Copyright notice                                                       **
 **                                                                          **
 **   (c) 2005-2010 RSSOwl Development Team                                  **
 **   http://www.rssowl.org/                                                 **
 **                                                                          **
 **   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.rssowl.org/legal/epl-v10.html                               **
 **                                                                          **
 **   A copy is found in the file epl-v10.html and important notices to the  **
 **   license from the team is found in the textfile LICENSE.txt distributed **
 **   in this package.                                                       **
 **                                                                          **
 **   This copyright notice MUST APPEAR in all copies of the file!           **
 **                                                                          **
 **   Contributors:                                                          **
 **     RSSOwl Development Team - initial API and implementation             **
 **                                                                          **
 **  **********************************************************************  */
package org.rssowl.ui.internal.dialogs;

import org.eclipse.jface.dialogs.IDialogConstants;
import org.eclipse.jface.dialogs.TitleAreaDialog;
import org.eclipse.jface.resource.JFaceResources;
import org.eclipse.jface.resource.LocalResourceManager;
import org.eclipse.swt.SWT;
import org.eclipse.swt.layout.GridData;
import org.eclipse.swt.widgets.Composite;
import org.eclipse.swt.widgets.Control;
import org.eclipse.swt.widgets.Label;
import org.eclipse.swt.widgets.Shell;
import org.rssowl.ui.internal.OwlUI;
import org.rssowl.ui.internal.actions.FacebookAuthenticationAction;
import org.rssowl.ui.internal.util.LayoutUtils;

public class FacebookCredentialDialog extends TitleAreaDialog {

    /* Keep the visible instance saved */
    private static FacebookCredentialDialog fVisibleInstance;

    public static FacebookCredentialDialog getVisibleInstance() {
        return fVisibleInstance;
    }

    /* Fields */
    private LocalResourceManager fResources;

    FacebookAuthenticationAction fAuthAction = null;

    public FacebookCredentialDialog(Shell parentShell) {
        super(parentShell);
        fAuthAction = new FacebookAuthenticationAction();
        fResources = new LocalResourceManager(JFaceResources.getResources());
    }

    @Override
    protected void buttonPressed(int buttonId) {
        /* User pressed SAVE Button */
        if (buttonId == IDialogConstants.OK_ID) {
            fAuthAction.startAuthentication();
        }
        super.buttonPressed(buttonId);
    }

    @Override
    public boolean close() {
        fVisibleInstance = null;
        fResources.dispose();
        return super.close();
    }

    @Override
    protected void configureShell(Shell shell) {
        super.configureShell(shell);
        shell.setText(Messages.FacebookCredentialDialog_WINDOW_TITLE);
    }

    /*
     * @see org.eclipse.jface.dialogs.Dialog#createButtonsForButtonBar(org.eclipse.swt.widgets.Composite)
     */
    @Override
    protected void createButtonsForButtonBar(Composite parent) {
        createButton(parent, IDialogConstants.OK_ID, "Ok", true); //$NON-NLS-1$
        createButton(parent, IDialogConstants.CANCEL_ID, "Cancel", false); //$NON-NLS-1$
    }

    //Create the Dialog structure

    @Override
    protected Control createDialogArea(Composite parent) {

        /* Title */
        setTitle(Messages.FacebookCredentialDialog_TITLE);

        /* Title Image */
        setTitleImage(OwlUI.getImage(fResources, "icons/wizban/login_wiz.png")); //$NON-NLS-1$

        /* Title Message */
        setMessage(Messages.FacebookCredentialDialog_MESSAGE);

        /* Separator */
        new Label(parent, SWT.SEPARATOR | SWT.HORIZONTAL)
                .setLayoutData(new GridData(SWT.FILL, SWT.BEGINNING, true, false));

        /* Composite to hold all components */
        Composite composite = new Composite(parent, SWT.NONE);
        composite.setLayout(LayoutUtils.createGridLayout(1, 5, 10));
        composite.setLayoutData(new GridData(SWT.FILL, SWT.FILL, true, false));
        composite.setBackground(parent.getBackground());

        /* Label for username */
        Label userLabel = new Label(composite, SWT.WRAP);
        userLabel.setLayoutData(new GridData(SWT.FILL, SWT.BEGINNING, true, false));
        userLabel.setText(Messages.FacebookCredentialDialog_EXPLANATION);

        /* Separator */
        new Label(parent, SWT.SEPARATOR | SWT.HORIZONTAL)
                .setLayoutData(new GridData(SWT.FILL, SWT.BEGINNING, true, false));

        /* Try loading Credentials from Platform if available */
        applyDialogFont(composite);
        return composite;
    }

    /*
     * @see org.eclipse.jface.window.Window#getShellStyle()
     */
    @Override
    protected int getShellStyle() {
        int style = SWT.TITLE | SWT.BORDER | SWT.CLOSE | getDefaultOrientation();
        return style;
    }

    @Override
    public int open() {
        fVisibleInstance = this;
        return super.open();
    }

}