com.google.cloud.tools.eclipse.appengine.ui.MissingComponentPage.java Source code

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Here is the source code for com.google.cloud.tools.eclipse.appengine.ui.MissingComponentPage.java

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/*
 * Copyright 2016 Google 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.google.cloud.tools.eclipse.appengine.ui;

import org.eclipse.jface.dialogs.Dialog;
import org.eclipse.jface.layout.GridLayoutFactory;
import org.eclipse.jface.wizard.WizardPage;
import org.eclipse.swt.SWT;
import org.eclipse.swt.custom.StyleRange;
import org.eclipse.swt.custom.StyledText;
import org.eclipse.swt.layout.GridData;
import org.eclipse.swt.widgets.Composite;
import com.google.cloud.tools.eclipse.usagetracker.AnalyticsEvents;
import com.google.cloud.tools.eclipse.usagetracker.AnalyticsPingManager;

/**
 * Wizard page that displays a message that something needed in the environment is
 * missing with instructions on how to install it. This page disables the 'Finish' button.
 */
public class MissingComponentPage extends WizardPage {

    private String wizardType;
    private String message;

    /**
     * @param pageName internal identifier
     * @param wizardType should be constant from AnalyticsEvents
     * @param title dialog title
     * @param errorMessage short error message
     * @param message detailed message and instructions. Text between single quotes is made bold.
     */
    public MissingComponentPage(String pageName, String wizardType, String title, String errorMessage,
            String message) {
        super(pageName);
        setTitle(title);
        setErrorMessage(errorMessage);
        this.wizardType = wizardType;
        this.message = message;
    }

    @Override
    public void createControl(Composite parent) {
        AnalyticsPingManager.getInstance().sendPing(AnalyticsEvents.APP_ENGINE_NEW_PROJECT_WIZARD,
                AnalyticsEvents.APP_ENGINE_NEW_PROJECT_WIZARD_TYPE, wizardType, parent.getShell());

        Composite container = new Composite(parent, SWT.NONE);
        GridLayoutFactory.swtDefaults().numColumns(1).applyTo(container);

        GridData gridData = new GridData(GridData.FILL_HORIZONTAL);
        gridData.widthHint = parent.getSize().x;

        StyledText styledText = new StyledText(container, SWT.MULTI | SWT.READ_ONLY | SWT.WRAP);
        styledText.setLayoutData(gridData);
        styledText.setText(message);
        styledText.setBackground(container.getBackground());
        styledText.setCaret(null /* hide caret */);

        int startIndex = message.indexOf("\'"); //$NON-NLS-1$
        int endIndex = message.indexOf("\'", startIndex + 1); //$NON-NLS-1$
        if ((-1 < startIndex) && (startIndex < endIndex)) {
            StyleRange styleRange = new StyleRange();
            styleRange.start = startIndex + 1;
            styleRange.length = endIndex - startIndex;
            styleRange.fontStyle = SWT.BOLD;
            styledText.setStyleRange(styleRange);
        }

        setControl(container);
        setPageComplete(false);
        Dialog.applyDialogFont(container);
    }

}