com.predic8.plugin.membrane_client.preferences.ProxyPreferencesPage.java Source code

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Here is the source code for com.predic8.plugin.membrane_client.preferences.ProxyPreferencesPage.java

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/* Copyright 2010 predic8 GmbH, www.predic8.com
    
   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.predic8.plugin.membrane_client.preferences;

import org.eclipse.jface.preference.PreferencePage;
import org.eclipse.jface.resource.ImageDescriptor;
import org.eclipse.swt.SWT;
import org.eclipse.swt.events.SelectionAdapter;
import org.eclipse.swt.events.SelectionEvent;
import org.eclipse.swt.layout.GridData;
import org.eclipse.swt.widgets.Button;
import org.eclipse.swt.widgets.Composite;
import org.eclipse.swt.widgets.Control;
import org.eclipse.swt.widgets.Group;
import org.eclipse.swt.widgets.Label;
import org.eclipse.swt.widgets.Text;
import org.eclipse.ui.IWorkbench;
import org.eclipse.ui.IWorkbenchPreferencePage;

import com.predic8.plugin.membrane_client.MembraneClientUIPlugin;
import com.predic8.plugin.membrane_client.ui.PluginUtil;

public class ProxyPreferencesPage extends PreferencePage implements IWorkbenchPreferencePage {

    public static final String PAGE_ID = "com.predic8.plugin.membrane_client.preferences.ProxyPreferencePage";

    private Text textPort;

    private Text textHost;

    private Text textUser;

    private Text textPassword;

    private Button btUseProxyAuthent;

    private Button btUseProxy;

    public ProxyPreferencesPage() {

    }

    public ProxyPreferencesPage(String title) {
        super(title);
        setDescription("Provides settings for Proxy options.");
    }

    public ProxyPreferencesPage(String title, ImageDescriptor image) {
        super(title, image);
    }

    @Override
    protected Control createContents(Composite parent) {
        Composite composite = PluginUtil.createComposite(parent, 1);

        btUseProxy = createUseProxyButton(composite);

        Group proxyGroup = PluginUtil.createGroup(composite, "Proxy Settings", 2, 5);

        new Label(proxyGroup, SWT.NONE).setText("Host");

        textHost = PluginUtil.createText(proxyGroup, 200);
        textHost.setEnabled(false);

        new Label(proxyGroup, SWT.NONE).setText("Port");

        textPort = PluginUtil.createText(proxyGroup, 75);
        textPort.setEnabled(false);

        new Label(proxyGroup, SWT.NONE).setText(" ");

        createAuthButton(proxyGroup);

        Group groupAuth = PluginUtil.createGroup(proxyGroup, "Credentials", 2, 5);
        GridData gdA = new GridData();
        gdA.horizontalSpan = 2;
        groupAuth.setLayoutData(gdA);

        new Label(groupAuth, SWT.NONE).setText("Username: ");
        textUser = PluginUtil.createText(groupAuth, 200);
        textUser.setEnabled(false);

        new Label(groupAuth, SWT.NONE).setText("Password: ");
        textPassword = PluginUtil.createPasswordText(groupAuth, 200);
        textPassword.setEnabled(false);

        setWidgets();

        GridData gd = new GridData();
        gd.verticalAlignment = GridData.FILL;
        gd.grabExcessVerticalSpace = true;

        Label label = new Label(composite, SWT.NONE);
        label.setText(" ");
        label.setLayoutData(gd);

        return composite;
    }

    private void setWidgets() {

        if (PreferencesData.getProxyHost() != null) {
            textHost.setText("" + PreferencesData.getProxyHost());
        }

        textPort.setText("" + PreferencesData.getProxyPort());

        if (PreferencesData.getProxyUserName() != null)
            textUser.setText(PreferencesData.getProxyUserName());

        if (PreferencesData.getProxyPassword() != null)
            textPassword.setText(PreferencesData.getProxyPassword());

        btUseProxyAuthent.setSelection(PreferencesData.isUseProxyAuth());
        btUseProxyAuthent.notifyListeners(SWT.Selection, null);
        btUseProxy.setSelection(PreferencesData.isUseProxy());
        btUseProxy.notifyListeners(SWT.Selection, null);
    }

    private Button createUseProxyButton(Composite composite) {
        final Button bt = new Button(composite, SWT.CHECK);
        bt.setText("Use Proxy Server");
        bt.addSelectionListener(new SelectionAdapter() {
            @Override
            public void widgetSelected(SelectionEvent e) {
                enableWidgets(bt.getSelection());
            }
        });

        return bt;
    }

    private void createAuthButton(Group proxyGroup) {
        btUseProxyAuthent = new Button(proxyGroup, SWT.CHECK);
        btUseProxyAuthent.setText("Use Proxy Authentification");
        btUseProxyAuthent.addSelectionListener(new SelectionAdapter() {
            public void widgetSelected(SelectionEvent e) {
                enableAuthentificationWidgets(btUseProxyAuthent.getSelection());
            };
        });
        GridData gd = new GridData();
        gd.horizontalSpan = 2;
        btUseProxyAuthent.setLayoutData(gd);
    }

    private void enableWidgets(boolean enabled) {
        btUseProxyAuthent.setEnabled(enabled);
        enableAuthentificationWidgets(enabled && btUseProxyAuthent.getSelection());
        textHost.setEnabled(enabled);
        textPort.setEnabled(enabled);
    }

    private void enableAuthentificationWidgets(boolean enabled) {
        textPassword.setEnabled(enabled);
        textUser.setEnabled(enabled);
    }

    public void init(IWorkbench workbench) {
        setPreferenceStore(MembraneClientUIPlugin.getDefault().getPreferenceStore());
    }

    @Override
    protected void performApply() {
        setAndSaveConfig();
    }

    private void setAndSaveConfig() {
        PreferencesData.setUseProxy(btUseProxy.getSelection());
        PreferencesData.setUseProxyAuthent(btUseProxyAuthent.getSelection());
        PreferencesData.setProxyHost(textHost.getText());
        PreferencesData.setProxyPort(Integer.parseInt(textPort.getText()));
        PreferencesData.setProxyUserName(textUser.getText());
        PreferencesData.setProxyPassword(textPassword.getText());
    }

    @Override
    public boolean performOk() {
        setAndSaveConfig();
        return super.performOk();
    }

}