com.google.gdt.eclipse.suite.wizards.CreateAppIdDialog.java Source code

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Here is the source code for com.google.gdt.eclipse.suite.wizards.CreateAppIdDialog.java

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/*******************************************************************************
 * Copyright 2013 Google Inc. All Rights Reserved.
 *
 * 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
 *
 * 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.google.gdt.eclipse.suite.wizards;

import org.eclipse.jface.dialogs.IDialogConstants;
import org.eclipse.jface.dialogs.TitleAreaDialog;
import org.eclipse.swt.SWT;
import org.eclipse.swt.events.ModifyEvent;
import org.eclipse.swt.events.ModifyListener;
import org.eclipse.swt.events.SelectionAdapter;
import org.eclipse.swt.events.SelectionEvent;
import org.eclipse.swt.layout.GridData;
import org.eclipse.swt.layout.GridLayout;
import org.eclipse.swt.widgets.Button;
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.eclipse.swt.widgets.Text;

/**
 * This is the Create App Id dialog. It allows the user to create a new Cloud project app id using
 * the App Engine API. User should be logged in before opening this dialog. If user is not logged in
 * before opening this dialog, user will be prompted to log in when they attempt to create a new app
 * id.
 *
 * NOTE: This class is unused, because we've disabled the ability to create App Ids on the
 * service side. We'll re-enable this once an updated project creation API exists.
 */
public class CreateAppIdDialog extends TitleAreaDialog {

    private Text newAppIdText;
    private Button createBtn;
    private String newAppIdCopy = "";
    private static final String APP_ID_RE_STRING = "[a-z0-9][a-z0-9-]{4,28}[a-z0-9]";
    private static final String ENTER_APP_ID_MESSAGE = "Enter the app id you would like to create";
    private static final String CREATE_APP_ID_MESSAGE = "Create a new app id";
    private static final String APP_ID_FORMAT_MESSAGE = "Note:\n" + "App Id must be between 6 and 30 characters.\n"
            + "Lowercase letters, digits, and hyphens are acceptable characters.\n"
            + "Leading and trailing hyphens are prohibited.";

    /**
     * Constructor.
     *
     * NOTE: This constructor is private, because we've disabled the ability to create App Ids on the
     * service side. We'll re-enable this once an updated project creation API exists.
     */
    private CreateAppIdDialog(Shell parentShell) {
        super(parentShell);
    }

    /**
     * Returns the last text entered in the newAppIdText text box.
     */
    public String getAppId() {
        return newAppIdCopy;
    }

    @Override
    protected void configureShell(Shell newShell) {
        super.configureShell(newShell);
        newShell.setText("Create App Id");
        setHelpAvailable(false);
    }

    @Override
    protected void createButtonsForButtonBar(Composite parent) {
        // create Create and Cancel buttons
        createButton(parent, IDialogConstants.CANCEL_ID, IDialogConstants.CANCEL_LABEL, false);

        createButton(parent, IDialogConstants.CLIENT_ID, "Create", false);
        createBtn = getButton(IDialogConstants.CLIENT_ID);
        createBtn.addSelectionListener(new SelectionAdapter() {
            @Override
            public void widgetSelected(SelectionEvent e) {
                okPressed();
            }
        });
        createBtn.setEnabled(false);
    }

    @Override
    protected Control createDialogArea(Composite parent) {
        parent = (Composite) super.createDialogArea(parent);

        Composite container = new Composite(parent, SWT.NONE);
        GridData containerGridData = new GridData(GridData.FILL_HORIZONTAL);
        container.setLayoutData(containerGridData);
        GridLayout gridLayout = new GridLayout();
        gridLayout.numColumns = 3;
        container.setLayout(gridLayout);

        // New App Id label
        final Label projectNameLabel = new Label(container, SWT.NONE);
        projectNameLabel.setText("New App Id:");

        // New App Id text box
        newAppIdText = new Text(container, SWT.BORDER);
        final GridData gd1 = new GridData(GridData.FILL_HORIZONTAL);
        gd1.horizontalSpan = 2;
        newAppIdText.setLayoutData(gd1);
        newAppIdText.addModifyListener(new ModifyListener() {
            @Override
            public void modifyText(ModifyEvent e) {
                newAppIdCopy = newAppIdText.getText();
                updateControls();
            }
        });
        setMessage(ENTER_APP_ID_MESSAGE);

        Label appIdLabel = new Label(container, SWT.NONE);
        appIdLabel.setText(APP_ID_FORMAT_MESSAGE);
        final GridData gd2 = new GridData(GridData.FILL_HORIZONTAL);
        gd2.horizontalSpan = 3;
        appIdLabel.setLayoutData(gd2);
        appIdLabel.setEnabled(false);

        return container;
    }

    /**
     * Disables the "Create" button if the "New App Id" text box is empty and enables it otherwise.
     */
    private void updateControls() {
        if (newAppIdText.getText().equals("")) {
            setMessage(ENTER_APP_ID_MESSAGE);
            createBtn.setEnabled(false);
        } else if (!newAppIdText.getText().matches(APP_ID_RE_STRING)) {
            setMessage(CREATE_APP_ID_MESSAGE);
            createBtn.setEnabled(false);
        } else {
            setMessage(CREATE_APP_ID_MESSAGE);
            createBtn.setEnabled(true);
        }
    }
}