src/plugins/android/src/com/motorola/studio/android/wizards/project/NewAndroidProjectMainPage.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.project;

import org.eclipse.core.runtime.IStatus;
import org.eclipse.jface.dialogs.DialogPage;
import org.eclipse.jface.wizard.IWizardPage;
import org.eclipse.jface.wizard.WizardPage;
import org.eclipse.swt.SWT;
import org.eclipse.swt.custom.ScrolledComposite;
import org.eclipse.swt.layout.FillLayout;
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.Event;
import org.eclipse.swt.widgets.Group;
import org.eclipse.swt.widgets.Listener;
import org.eclipse.ui.PlatformUI;

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;
import com.motorola.studio.android.wizards.elements.ApplicationGroup;
import com.motorola.studio.android.wizards.elements.LocationGroup;
import com.motorola.studio.android.wizards.elements.ProjectNameGroup;
import com.motorola.studio.android.wizards.elements.SdkTargetSelector;

/**
 * Class that represents the main page in the New Project Wizard
 */
public class NewAndroidProjectMainPage extends WizardPage
{
    private static final String PAGE_NAME = "Main Page";

    private final AndroidProject project;

    private final String NEW_PROJECT_HELP = AndroidPlugin.PLUGIN_ID + ".newproj";

    //private boolean isNativeChecked = false;

    private boolean hasNativePage = false;

    private Button nativeCkb;

    private Button obfuscateCkbox;

    /**
     * Listener for the wizard changes
     */
    private final Listener modelListener = new Listener()
    {
        public void handleEvent(Event arg0)
        {
            IStatus status = project.getStatus();
            int severity = status.getSeverity();
            setPageComplete(severity != IStatus.ERROR);

            int msgType;
            switch (severity)
            {
                case IStatus.OK:
                    msgType = DialogPage.NONE;
                    break;
                case IStatus.ERROR:
                    msgType = DialogPage.ERROR;
                    break;
                case IStatus.WARNING:
                    msgType = DialogPage.WARNING;
                    break;
                default:
                    msgType = DialogPage.NONE;
                    break;
            }
            String defaultMessage = AndroidNLS.UI_NewAndroidProjectMainPage_SubtitleCreateProject;
            setMessage(status.isOK() ? defaultMessage : status.getMessage(), msgType);
        }
    };

    /**
     * Constructor
     * 
     * @param project The selected project 
     */
    public NewAndroidProjectMainPage(AndroidProject project, boolean hasNativePage)
    {
        super(PAGE_NAME);
        this.project = project;
        this.hasNativePage = hasNativePage;
        setTitle(AndroidNLS.UI_NewAndroidProjectMainPage_TitleCreateProject);
        setDescription(AndroidNLS.UI_NewAndroidProjectMainPage_WizardProjectDescription);
        setPageComplete(false);
    }

    /* (non-Javadoc)
     * @see org.eclipse.jface.dialogs.IDialogPage#createControl(org.eclipse.swt.widgets.Composite)
     */
    public void createControl(Composite parent)
    {
        Composite mainComposite = new Composite(parent, SWT.NULL);
        mainComposite.setFont(parent.getFont());
        mainComposite.setLayout(new FillLayout(SWT.VERTICAL));

        initializeDialogUnits(mainComposite);

        final ScrolledComposite scroll =
                new ScrolledComposite(mainComposite, SWT.H_SCROLL | SWT.V_SCROLL);
        final Composite innerScrollComposite = new Composite(scroll, SWT.NONE);

        innerScrollComposite.setLayout(new GridLayout());
        GridData data = new GridData(SWT.FILL, SWT.FILL, true, true);
        innerScrollComposite.setLayoutData(data);

        //only put the project and location groups: no vertical resize, no vertical style
        data = new GridData(SWT.FILL, SWT.NONE, true, false);

        ProjectNameGroup projectNameGroup = new ProjectNameGroup(innerScrollComposite, project);
        projectNameGroup.setLayoutData(data);

        // Create Location Group
        data = new GridData(SWT.FILL, SWT.NONE, true, false);
        Group groupForLocation = new Group(innerScrollComposite, SWT.SHADOW_ETCHED_IN);
        // Layout has 1 column
        groupForLocation.setLayout(new GridLayout());
        groupForLocation.setLayoutData(data);
        groupForLocation.setFont(innerScrollComposite.getFont());
        groupForLocation.setText(AndroidNLS.UI_NewAndroidProjectMainPage_LabelContents);

        LocationGroup locationGroup = new LocationGroup(groupForLocation, project, this);
        // End of Location Group

        // Create SDK Group
        //create sdk group with vertical resize, grabbing excedding space
        data = new GridData(SWT.FILL, SWT.FILL, true, true);
        data.heightHint = 150;
        Group groupForTarget = new Group(innerScrollComposite, SWT.SHADOW_ETCHED_IN);
        groupForTarget.setLayout(new GridLayout());
        groupForTarget.setLayoutData(data);
        groupForTarget.setFont(innerScrollComposite.getFont());
        groupForTarget.setText(AndroidNLS.UI_NewAndroidProjectMainPage_LabelTarget);

        final SdkTargetSelector mSdkTargetSelector = new SdkTargetSelector(groupForTarget, project);
        //End of Target Creation

        // Create Package Group
        Group group = new Group(innerScrollComposite, SWT.SHADOW_ETCHED_IN);
        data = new GridData(SWT.FILL, SWT.NONE, true, false);
        // Layout has 1 column
        group.setLayout(new GridLayout());
        group.setLayoutData(data);
        group.setFont(innerScrollComposite.getFont());
        group.setText(AndroidNLS.UI_NewAndroidProjectMainPage_LabelApplication);

        final ApplicationGroup applicationGroup = new ApplicationGroup(group, project);
        Listener listener = new Listener()
        {
            public void handleEvent(Event arg0)
            {
                applicationGroup.updateDefaultName();
                applicationGroup.updateMinSdkVersion();
                getContainer().updateButtons();

                if (hasNativePage)
                {
                    if (project.getSourceType() == SourceTypes.SAMPLE)
                    {
                        nativeCkb.setEnabled(false);
                        nativeCkb.setSelection(false);
                        project.setAddNativeSupport(false);
                    }
                    else
                    {
                        nativeCkb.setEnabled(true);
                        project.setAddNativeSupport(nativeCkb.getSelection());
                    }
                }

                project.setNeedToObfuscate(obfuscateCkbox.getSelection());
            }
        };

        nativeCkb = new Button(innerScrollComposite, SWT.CHECK);
        nativeCkb.setText(AndroidNLS.UI_ProjectCreation_NativeSupport);
        if (!hasNativePage)
        {
            nativeCkb.setEnabled(false);
        }

        obfuscateCkbox = new Button(innerScrollComposite, SWT.CHECK);
        obfuscateCkbox.setText(AndroidNLS.UI_ProjectCreation_Obfuscate);
        obfuscateCkbox.setEnabled(true);

        projectNameGroup.addListener(IWizardModel.MODIFIED, modelListener);
        projectNameGroup.addListener(IWizardModel.MODIFIED, listener);
        locationGroup.addListener(IWizardModel.MODIFIED, listener);
        locationGroup.addListener(IWizardModel.MODIFIED, modelListener);
        applicationGroup.addListener(IWizardModel.MODIFIED, modelListener);
        mSdkTargetSelector.addListener(IWizardModel.MODIFIED, modelListener);
        mSdkTargetSelector.addListener(IWizardModel.MODIFIED, listener);
        nativeCkb.addListener(SWT.Selection, listener);
        nativeCkb.addListener(SWT.Selection, modelListener);
        obfuscateCkbox.addListener(SWT.Selection, listener);
        obfuscateCkbox.addListener(SWT.Selection, modelListener);

        //create application group with no vertical resize
        setPageComplete(false);

        // Show description the first time
        setErrorMessage(null);
        setMessage(null);

        projectNameGroup.forceFocus();

        setControl(innerScrollComposite);
        innerScrollComposite.layout(true);
        PlatformUI.getWorkbench().getHelpSystem().setHelp(parent, NEW_PROJECT_HELP);

        // set up scroll
        scroll.setContent(innerScrollComposite);

        scroll.setExpandHorizontal(true);
        scroll.setExpandVertical(true);

        scroll.setMinSize(innerScrollComposite.computeSize(SWT.DEFAULT, SWT.DEFAULT));
        //
        // set control
        setControl(mainComposite);
    }

    /*
     * (non-Javadoc)
     * @see org.eclipse.jface.dialogs.DialogPage#setButtonLayoutData(org.eclipse.swt.widgets.Button)
     */
    @Override
    public GridData setButtonLayoutData(Button button)
    {
        return super.setButtonLayoutData(button);
    }

    /*
     * (non-Javadoc)
     * @see org.eclipse.jface.wizard.WizardPage#getNextPage()
     */
    @Override
    public IWizardPage getNextPage()
    {

        //returns null if there is no next page
        IWizardPage page = null;
        if (project.isAddingNativeSupport())
        {
            //calls native page
            page = getWizard().getPage(NewAndroidProjectWizard.NATIVE_PAGE_NAME);
        }
        else
        {
            //calls source page when selected
            if (project.getSourceType() == SourceTypes.SAMPLE)
            {
                page = getWizard().getPage(NewAndroidProjectWizard.SAMPLE_PAGE_NAME);
            }
        }

        return page;
    }

    @Override
    public boolean isPageComplete()
    {
        boolean canFinish = true;
        if ((project.isAddingNativeSupport()) || (project.getSourceType() == SourceTypes.SAMPLE)
                || !super.isPageComplete())
        {
            canFinish = false;
        }
        return canFinish;
    }

    @Override
    public boolean canFlipToNextPage()
    {
        boolean canFlip = false;
        if ((project.isAddingNativeSupport()) || (project.getSourceType() == SourceTypes.SAMPLE))
        {
            if (super.isPageComplete())
            {
                canFlip = true;
            }
        }
        return canFlip;
    }
}