/*
* Copyright (C) 2012 The Android Open Source Project
*
* Licensed under the Eclipse Public License, Version 1.0 (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.eclipse.org/org/documents/epl-v10.php
*
* 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.android.ide.eclipse.adt.internal.wizards.templates;
import static com.android.ide.eclipse.adt.internal.wizards.templates.NewProjectWizard.CATEGORY_ACTIVITIES;
import static com.android.ide.eclipse.adt.internal.wizards.templates.NewProjectWizard.CATEGORY_OTHER;
import static com.android.ide.eclipse.adt.internal.wizards.templates.TemplateHandler.PREVIEW_PADDING;
import static com.android.ide.eclipse.adt.internal.wizards.templates.TemplateHandler.PREVIEW_WIDTH;
import com.android.ide.eclipse.adt.AdtPlugin;
import com.android.ide.eclipse.adt.internal.editors.layout.gle2.ImageControl;
import com.google.common.io.Files;
import org.eclipse.core.runtime.IStatus;
import org.eclipse.core.runtime.Status;
import org.eclipse.jface.dialogs.IMessageProvider;
import org.eclipse.jface.resource.JFaceResources;
import org.eclipse.jface.wizard.WizardPage;
import org.eclipse.swt.SWT;
import org.eclipse.swt.events.SelectionEvent;
import org.eclipse.swt.events.SelectionListener;
import org.eclipse.swt.graphics.Font;
import org.eclipse.swt.graphics.Image;
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.Label;
import org.eclipse.swt.widgets.List;
import java.io.ByteArrayInputStream;
import java.io.File;
import java.io.IOException;
import java.util.ArrayList;
class ActivityPage extends WizardPage implements SelectionListener {
private final NewProjectWizardState mValues;
private List mList;
private Button mCreateToggle;
private java.util.List<File> mTemplates;
private boolean mIgnore;
private boolean mShown;
private ImageControl mPreview;
private Image mPreviewImage;
private boolean mDisposePreviewImage;
private Label mHeading;
private Label mDescription;
private boolean mOnlyActivities;
private boolean mAskCreate;
/**
* Create the wizard.
*/
ActivityPage(NewProjectWizardState values, boolean onlyActivities, boolean askCreate) {
super("activityPage"); //$NON-NLS-1$
mValues = values;
mOnlyActivities = onlyActivities;
mAskCreate = askCreate;
if (onlyActivities) {
setTitle("Create Activity");
} else {
setTitle("Create Android Object");
}
if (onlyActivities && askCreate) {
setDescription(
"Select whether to create an activity, and if so, what kind of activity.");
} else {
setDescription("Select which template to use");
}
}
@Override
public void createControl(Composite parent) {
Composite container = new Composite(parent, SWT.NULL);
setControl(container);
}
@SuppressWarnings("unused") // SWT constructors have side effects and aren't unused
private void onEnter() {
Composite container = (Composite) getControl();
container.setLayout(new GridLayout(3, false));
if (mAskCreate) {
mCreateToggle = new Button(container, SWT.CHECK);
mCreateToggle.setSelection(true);
mCreateToggle.setLayoutData(new GridData(SWT.LEFT, SWT.CENTER, false, false, 3, 1));
mCreateToggle.setText("Create Activity");
mCreateToggle.addSelectionListener(this);
}
mList = new List(container, SWT.BORDER | SWT.V_SCROLL);
mList.setLayoutData(new GridData(SWT.FILL, SWT.FILL, true, true, 2, 1));
TemplateManager manager = mValues.template.getManager();
mTemplates = manager.getTemplates(CATEGORY_ACTIVITIES);
if (!mOnlyActivities) {
mTemplates.addAll(manager.getTemplates(CATEGORY_OTHER));
}
java.util.List<String> names = new ArrayList<String>(mTemplates.size());
File current = mValues.activityValues.getTemplateLocation();
int index = -1;
for (int i = 0, n = mTemplates.size(); i < n; i++) {
File template = mTemplates.get(i);
names.add(template.getName());
if (template.equals(current)) {
index = i;
}
}
String[] items = names.toArray(new String[names.size()]);
mList.setItems(items);
if (index == -1 && !mTemplates.isEmpty()) {
mValues.activityValues.setTemplateLocation(mTemplates.get(0));
index = 0;
}
if (index >= 0) {
mList.setSelection(index);
mList.addSelectionListener(this);
}
// Preview
mPreview = new ImageControl(container, SWT.NONE, null);
mPreview.setDisposeImage(false); // Handled manually in this class
GridData gd_mImage = new GridData(SWT.CENTER, SWT.CENTER, false, false, 1, 1);
gd_mImage.widthHint = PREVIEW_WIDTH + 2 * PREVIEW_PADDING;
mPreview.setLayoutData(gd_mImage);
new Label(container, SWT.NONE);
mHeading = new Label(container, SWT.NONE);
mHeading.setLayoutData(new GridData(SWT.LEFT, SWT.CENTER, false, false, 2, 1));
new Label(container, SWT.NONE);
mDescription = new Label(container, SWT.WRAP);
mDescription.setLayoutData(new GridData(SWT.LEFT, SWT.CENTER, true, false, 2, 1));
Font font = JFaceResources.getFontRegistry().getBold(JFaceResources.BANNER_FONT);
if (font != null) {
mHeading.setFont(font);
}
updatePreview();
}
private void updatePreview() {
Image oldImage = mPreviewImage;
boolean dispose = mDisposePreviewImage;
mPreviewImage = null;
String title = "";
String description = "";
TemplateHandler handler = mValues.activityValues.getTemplateHandler();
TemplateMetadata template = handler.getTemplate();
if (template != null) {
String thumb = template.getThumbnailPath();
if (thumb != null && !thumb.isEmpty()) {
File file = new File(mValues.activityValues.getTemplateLocation(),
thumb.replace('/', File.separatorChar));
if (file != null) {
try {
byte[] bytes = Files.toByteArray(file);
ByteArrayInputStream input = new ByteArrayInputStream(bytes);
mPreviewImage = new Image(getControl().getDisplay(), input);
mDisposePreviewImage = true;
input.close();
} catch (IOException e) {
AdtPlugin.log(e, null);
}
}
} else {
// Fallback icon
mDisposePreviewImage = false;
mPreviewImage = TemplateMetadata.getDefaultTemplateIcon();
}
title = template.getTitle();
description = template.getDescription();
}
mHeading.setText(title);
mDescription.setText(description);
mPreview.setImage(mPreviewImage);
mPreview.fitToWidth(PREVIEW_WIDTH);
if (oldImage != null && dispose) {
oldImage.dispose();
}
Composite parent = (Composite) getControl();
parent.layout(true, true);
parent.redraw();
}
@Override
public void dispose() {
super.dispose();
if (mPreviewImage != null && mDisposePreviewImage) {
mDisposePreviewImage = false;
mPreviewImage.dispose();
mPreviewImage = null;
}
}
@Override
public void setVisible(boolean visible) {
if (visible && !mShown) {
onEnter();
}
super.setVisible(visible);
if (visible) {
mShown = true;
if (mAskCreate) {
try {
mIgnore = true;
mCreateToggle.setSelection(mValues.createActivity);
} finally {
mIgnore = false;
}
}
}
validatePage();
}
private void validatePage() {
IStatus status = null;
if (mValues.createActivity) {
if (mList.getSelectionCount() < 1) {
status = new Status(IStatus.ERROR, AdtPlugin.PLUGIN_ID,
"Select an activity type");
} else {
TemplateHandler templateHandler = mValues.activityValues.getTemplateHandler();
status = templateHandler.validateTemplate(mValues.minSdkLevel,
mValues.getBuildApi());
}
}
setPageComplete(status == null || status.getSeverity() != IStatus.ERROR);
if (status != null) {
setMessage(status.getMessage(),
status.getSeverity() == IStatus.ERROR
? IMessageProvider.ERROR : IMessageProvider.WARNING);
} else {
setErrorMessage(null);
setMessage(null);
}
}
@Override
public boolean isPageComplete() {
// Ensure that the Finish button isn't enabled until
// the user has reached and completed this page
if (!mShown && mValues.createActivity) {
return false;
}
return super.isPageComplete();
}
// ---- Implements SelectionListener ----
@Override
public void widgetSelected(SelectionEvent e) {
if (mIgnore) {
return;
}
Object source = e.getSource();
if (source == mCreateToggle) {
mValues.createActivity = mCreateToggle.getSelection();
mList.setEnabled(mValues.createActivity);
} else if (source == mList) {
int index = mList.getSelectionIndex();
if (index >= 0 && index < mTemplates.size()) {
File template = mTemplates.get(index);
mValues.activityValues.setTemplateLocation(template);
updatePreview();
}
}
validatePage();
}
@Override
public void widgetDefaultSelected(SelectionEvent e) {
}
}