src/plugins/android/src/com/motorola/studio/android/wizards/elements/ApplicationGroup.java

/*
 * Copyright (C) 2012 The Android Open Source Project
 *
 * 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.motorola.studio.android.wizards.elements;

import org.eclipse.swt.SWT;
import org.eclipse.swt.events.DisposeEvent;
import org.eclipse.swt.events.DisposeListener;
import org.eclipse.swt.events.ModifyEvent;
import org.eclipse.swt.events.ModifyListener;
import org.eclipse.swt.layout.GridData;
import org.eclipse.swt.layout.GridLayout;
import org.eclipse.swt.widgets.Composite;
import org.eclipse.swt.widgets.Event;
import org.eclipse.swt.widgets.Label;
import org.eclipse.swt.widgets.Text;

import com.motorola.studio.android.AndroidPlugin;
import com.motorola.studio.android.i18n.AndroidNLS;
import com.motorola.studio.android.model.AndroidProject;
import com.motorola.studio.android.model.AndroidProject.SourceTypes;
import com.motorola.studio.android.model.IWizardModel;

/**
 * Element for NewAndroidProject Wizard Page
 */
public class ApplicationGroup extends Composite
{

    private final AndroidProject project;

    private Text packageName = null;

    private Text activityName = null;

    private Text applicationName = null;

    private Text minSdkVersionText;

    private String userChosenPackageName = null;

    private String userChosenActivityName = null;

    private String userChosenMinSdkVersion = null;

    private String userChosenApplicationName = null;

    private final String DEFAULT_ACTIVITY_NAME = "MainActivity";

    private final String DEFAULT_APP_NAME = "User Application";

    /**
     * Constructor
     * @param parent
     * @param project
     */
    public ApplicationGroup(Composite parent, AndroidProject project)
    {
        super(parent, SWT.NONE);
        this.project = project;
        createContents(this);
    }

    /**
     * Create Controls
     * @param mainComposite
     */
    protected void createContents(Composite mainComposite)
    {
        setLayout(new GridLayout());
        setLayoutData(new GridData(GridData.FILL_HORIZONTAL));

        // package group
        Composite packageComposite = new Composite(mainComposite, SWT.NONE);
        packageComposite.setLayout(new GridLayout(2, false));
        GridData data = new GridData(SWT.FILL, SWT.NONE, true, false);
        packageComposite.setLayoutData(data);

        // application name
        final Label applicationNameLabel = new Label(packageComposite, SWT.NONE);
        applicationNameLabel.setText(AndroidNLS.UI_ApplicationGroup_ApplicationNameLabel);
        applicationNameLabel.setFont(mainComposite.getParent().getFont());

        applicationName = new Text(packageComposite, SWT.BORDER);
        data = new GridData(SWT.FILL, SWT.NONE, true, false);
        applicationName.setLayoutData(data);
        applicationName.setFont(mainComposite.getParent().getFont());
        applicationName.setText(DEFAULT_APP_NAME);
        project.setApplicationName(DEFAULT_APP_NAME);

        // new package label
        final Label packageLabel = new Label(packageComposite, SWT.NONE);
        packageLabel.setText(AndroidNLS.UI_ApplicationGroup_PackageNameLabel);
        packageLabel.setFont(mainComposite.getParent().getFont());

        // new package name entry field
        packageName = new Text(packageComposite, SWT.BORDER);
        data = new GridData(SWT.FILL, SWT.NONE, true, false);
        packageName.setLayoutData(data);
        packageName.setFont(mainComposite.getParent().getFont());
        packageName.setText(project.getPackageName());

        final Label activityLabel = new Label(packageComposite, SWT.NONE);
        activityLabel.setText(AndroidNLS.UI_ApplicationGroup_ActivityNameLabel);
        activityLabel.setFont(mainComposite.getParent().getFont());

        activityName = new Text(packageComposite, SWT.BORDER);
        data = new GridData(SWT.FILL, SWT.NONE, true, false);
        activityName.setLayoutData(data);
        activityName.setFont(mainComposite.getParent().getFont());
        activityName.setText(DEFAULT_ACTIVITY_NAME);
        project.setActivityName(DEFAULT_ACTIVITY_NAME);

        Label minSDKVersionLabel = new Label(packageComposite, SWT.NONE);
        minSDKVersionLabel.setText(AndroidNLS.UI_ApplicationGroup_MinSDKVersionLabel);
        minSdkVersionText = new Text(packageComposite, SWT.BORDER);
        data = new GridData(SWT.FILL, SWT.NONE, true, false);
        minSdkVersionText.setLayoutData(data);
        minSdkVersionText.setFont(mainComposite.getParent().getFont());
        String minSdkVersion = project.getMinSdkVersion();
        if (minSdkVersion != null)
        {
            minSdkVersionText.setText(minSdkVersion);
        }
        else
        {
            minSdkVersionText.setEnabled(false);
            final Runnable listener = new Runnable()
            {

                public void run()
                {
                    AndroidPlugin.getDefault().removeSDKLoaderListener(this);
                    minSdkVersionText.getDisplay().asyncExec(new Runnable()
                    {
                        public void run()
                        {
                            minSdkVersionText.setEnabled(true);
                            minSdkVersionText.setText(project.getMinSdkVersion());
                        }
                    });
                }
            };
            AndroidPlugin.getDefault().addSDKLoaderListener(listener);
            minSdkVersionText.addDisposeListener(new DisposeListener()
            {
                public void widgetDisposed(DisposeEvent e)
                {
                    AndroidPlugin.getDefault().removeSDKLoaderListener(listener);
                }
            });
        }

        minSdkVersionText.addModifyListener(new ModifyListener()
        {
            public void modifyText(ModifyEvent event)
            {
                project.setMinSdkVersion(minSdkVersionText.getText().trim());
                if (minSdkVersionText.isFocusControl())
                {
                    userChosenMinSdkVersion = minSdkVersionText.getText();
                }
                notifyListeners(IWizardModel.MODIFIED, new Event());
            }
        });

        applicationName.addModifyListener(new ModifyListener()
        {

            public void modifyText(ModifyEvent e)
            {
                // application name only will be used if the project is a new project. If it is using existing source this field will be ignored
                project.setApplicationName(applicationName.getText());
                if (applicationName.isFocusControl())
                {
                    userChosenApplicationName = applicationName.getText();
                }
                notifyListeners(IWizardModel.MODIFIED, new Event());
            }

        });

        activityName.addModifyListener(new ModifyListener()
        {

            public void modifyText(ModifyEvent e)
            {
                // activity name only will be used if the project is a new project. If it is using existing source this field will be ignored
                project.setActivityName(activityName.getText());
                if (activityName.isFocusControl())
                {
                    userChosenActivityName = activityName.getText();
                }
                notifyListeners(IWizardModel.MODIFIED, new Event());
            }

        });

        packageName.addModifyListener(new ModifyListener()
        {
            public void modifyText(ModifyEvent event)
            {
                // only change package name if the project isn't using default package name (it is some source based project)
                if (packageName.isFocusControl())
                {
                    userChosenPackageName = packageName.getText();
                    project.setUsingDefaultPackage(false);
                }
                if (!project.isUsingDefaultPackage())
                {
                    project.setPackageName(packageName.getText());
                }
                notifyListeners(IWizardModel.MODIFIED, new Event());
            }
        });

    }

    /**
     * Set the enable state for all fields within this widget
     * @param enabled
     */
    private void setElementsEnabled(boolean enabled)
    {
        packageName.setEnabled(enabled);
        activityName.setEnabled(enabled);
        applicationName.setEnabled(enabled);
    }

    /**
     * Update Default Package name.
     */
    public void updateDefaultName()
    {
        if ((project.getSourceType() != SourceTypes.NEW)
                && (project.getSourceType() != SourceTypes.WIDGET) && (packageName != null))
        {
            project.setUsingDefaultPackage(true);
            project.setActivityName("");
            packageName.setText(""); //$NON-NLS-1$
            activityName.setText("");
            applicationName.setText("");
            setElementsEnabled(false);

        }
        else
        {
            project.setUsingDefaultPackage(userChosenPackageName == null);
            packageName.setText(userChosenPackageName == null ? project.getPackageName()
                    : userChosenPackageName);
            activityName.setText(userChosenActivityName == null ? DEFAULT_ACTIVITY_NAME
                    : userChosenActivityName);
            applicationName.setText(userChosenApplicationName == null ? DEFAULT_APP_NAME
                    : userChosenApplicationName);
            setElementsEnabled(true);
        }

    }

    /**
     * Updates the Min Sdk Version field
     */
    public void updateMinSdkVersion()
    {
        minSdkVersionText.setEnabled((project.getSourceType() == SourceTypes.NEW)
                || (project.getSourceType() == SourceTypes.WIDGET));
        if (project.getSdkTarget() != null)
        {
            if (userChosenMinSdkVersion == null)
            {
                minSdkVersionText.setText(project.getSdkTarget().getVersion().getApiString());
            }
        }
        else
        {
            minSdkVersionText.setText("");
        }
    }

    /**
     * Retrieves the Activity SWT Text control
     * @return activityName
     */
    public Text getActivityText()
    {
        return activityName;
    }

    public boolean isElementsEnabled()
    {
        return packageName.isEnabled() & activityName.isEnabled() & applicationName.isEnabled();
    }

}