com.google.dart.eclipse.preferences.SdkPreferencePage.java Source code

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Here is the source code for com.google.dart.eclipse.preferences.SdkPreferencePage.java

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/*
 * Copyright (c) 2012, the Dart project authors.
 * 
 * Licensed under the Eclipse Public License v1.0 (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/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.dart.eclipse.preferences;

import com.google.dart.tools.core.model.DartSdk;
import com.google.dart.tools.core.model.DartSdkListener;
import com.google.dart.tools.core.model.DartSdkManager;
import com.google.dart.tools.core.model.DartSdkUpgradeJob;

import org.eclipse.jface.layout.GridDataFactory;
import org.eclipse.jface.layout.GridLayoutFactory;
import org.eclipse.jface.preference.PreferencePage;
import org.eclipse.swt.SWT;
import org.eclipse.swt.events.SelectionAdapter;
import org.eclipse.swt.events.SelectionEvent;
import org.eclipse.swt.widgets.Button;
import org.eclipse.swt.widgets.Composite;
import org.eclipse.swt.widgets.Control;
import org.eclipse.swt.widgets.Display;
import org.eclipse.swt.widgets.Group;
import org.eclipse.swt.widgets.Label;
import org.eclipse.ui.IWorkbench;
import org.eclipse.ui.IWorkbenchPreferencePage;

/**
 * A preference page to view the status of the Dart SDK and upgrade it.
 */
public class SdkPreferencePage extends PreferencePage implements IWorkbenchPreferencePage, DartSdkListener {

    private Label sdkVersionlabel;
    private Button upgradeButton;
    private Label installLocationLabel;

    public SdkPreferencePage() {
        noDefaultAndApplyButton();
    }

    @Override
    public void dispose() {
        DartSdkManager.getManager().removeSdkListener(this);

        super.dispose();
    }

    @Override
    public void init(IWorkbench workbench) {

    }

    @Override
    public void sdkUpdated(DartSdk sdk) {
        Display.getDefault().asyncExec(new Runnable() {
            @Override
            public void run() {
                updateSDKInfo();
            }
        });
    }

    @Override
    protected Control createContents(Composite parent) {
        Composite composite = new Composite(parent, SWT.NONE);
        GridDataFactory.fillDefaults().grab(true, false).applyTo(composite);
        GridLayoutFactory.fillDefaults().spacing(0, 10).applyTo(composite);

        Group sdkGroup = new Group(composite, SWT.NONE);
        sdkGroup.setText("Dart SDK");
        GridDataFactory.swtDefaults().grab(true, false).align(SWT.FILL, SWT.TOP).applyTo(sdkGroup);
        GridLayoutFactory.fillDefaults().numColumns(2).margins(10, 4).applyTo(sdkGroup);

        sdkVersionlabel = new Label(sdkGroup, SWT.NONE);
        GridDataFactory.fillDefaults().align(SWT.LEFT, SWT.CENTER).grab(true, false).applyTo(sdkVersionlabel);

        upgradeButton = new Button(sdkGroup, SWT.PUSH);
        upgradeButton.addSelectionListener(new SelectionAdapter() {
            @Override
            public void widgetSelected(SelectionEvent e) {
                DartSdkUpgradeJob job = new DartSdkUpgradeJob();

                job.schedule();
            }
        });

        installLocationLabel = new Label(sdkGroup, SWT.NONE);
        GridDataFactory.fillDefaults().grab(true, false).span(2, 1).applyTo(installLocationLabel);

        updateSDKInfo();

        DartSdkManager.getManager().addSdkListener(this);

        return composite;
    }

    protected void updateSDKInfo() {
        DartSdk sdk = DartSdkManager.getManager().getSdk();

        if (sdk == null) {
            installLocationLabel.setText("");
            sdkVersionlabel.setText("No SDK installed");
            upgradeButton.setText("Download SDK");
        } else {
            installLocationLabel.setText("Installed at " + sdk.getDirectory().getPath());
            sdkVersionlabel.setText("Dart SDK version " + sdk.getSdkVersion());
            upgradeButton.setText("Upgrade SDK");
        }

        sdkVersionlabel.getParent().layout();
    }

}