de.gpfeifer.no2go.e4.app.preference.PreferencePageProxy.java Source code

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Here is the source code for de.gpfeifer.no2go.e4.app.preference.PreferencePageProxy.java

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/*******************************************************************************
 * Copyright (c) 2007, 2010 IBM Corporation and others.
 * All rights reserved. This program and the accompanying materials
 * are made available under the terms of the Eclipse Public License v1.0
 * which accompanies this distribution, and is available at
 * http://www.eclipse.org/legal/epl-v10.html
 *
 * Contributors:
 * IBM Corporation - initial API and implementation
 * yyyymmdd bug      Email and other contact information
 * -------- -------- -----------------------------------------------------------
 * 20070123   154100 eu@md.pp.ru - Eugene Kuleshov, Initial UI coding
 * 20070201   154100 pmoogk@ca.ibm.com - Peter Moogk, Port internet code from WTP to Eclipse base.
 * 20070219   174674 pmoogk@ca.ibm.com - Peter Moogk
 * 20070402   180622 brockj@tpg.com.au - Brock Janiczak, Inconsistent enablement states in network preference page
 * 20070416   177897 ymnk@jcraft.com - Atsuhiko Yamanaka, Improve UI of Proxy Preferences Page
 * 20070801   197977 holger.oehm@sap.com - Holger Oehm, [Proxy] non-proxy hosts not correctly updated
 *******************************************************************************/
package de.gpfeifer.no2go.e4.app.preference;

import org.eclipse.core.internal.net.ProxySelector;
import org.eclipse.core.runtime.Platform;
import org.eclipse.core.runtime.preferences.IScopeContext;
import org.eclipse.core.runtime.preferences.InstanceScope;
import org.eclipse.jface.internal.JFaceActivator;
import org.eclipse.jface.preference.IPreferenceStore;
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.layout.GridData;
import org.eclipse.swt.layout.GridLayout;
import org.eclipse.swt.widgets.Combo;
import org.eclipse.swt.widgets.Composite;
import org.eclipse.swt.widgets.Control;
import org.eclipse.swt.widgets.Label;
import org.eclipse.ui.internal.net.NetUIMessages;
import org.eclipse.ui.preferences.ScopedPreferenceStore;

import de.gpfeifer.no2go.e4.app.Activator;

public class PreferencePageProxy extends PreferencePage {

    private static final String PROXY_PREFERENCE_PAGE_CONTEXT_ID = "org.eclipse.ui.net.proxy_preference_page_context"; //$NON-NLS-1$

    private Label providerLabel;
    protected Combo providerCombo;
    private ProxyEntriesComposite proxyEntriesComposite;
    private NonProxyHostsComposite nonProxyHostsComposite;

    protected Control createContents(Composite parent) {
        Composite composite = new Composite(parent, SWT.NONE);
        GridLayout layout = new GridLayout(1, false);
        layout.marginWidth = 0;
        layout.marginHeight = 0;
        composite.setLayout(layout);

        createProviderComposite(composite);
        createProxyEntriesComposite(composite);
        createNonProxiedHostsComposite(composite);

        applyDialogFont(composite);
        initializeValues();

        return composite;
    }

    private void createProviderComposite(Composite parent) {
        Composite composite = new Composite(parent, SWT.NONE);
        composite.setLayout(new GridLayout(2, false));
        composite.setLayoutData(new GridData(GridData.FILL_HORIZONTAL));

        providerLabel = new Label(composite, SWT.NONE);
        providerLabel.setText(NetUIMessages.ProxyPreferencePage_0);
        providerCombo = new Combo(composite, SWT.READ_ONLY | SWT.DROP_DOWN);
        providerCombo.addSelectionListener(new SelectionAdapter() {
            public void widgetSelected(SelectionEvent e) {
                setProvider(ProxySelector.unlocalizeProvider(providerCombo.getText()));
            }
        });
    }

    private void createProxyEntriesComposite(Composite parent) {
        proxyEntriesComposite = new ProxyEntriesComposite(parent, SWT.NONE);
        proxyEntriesComposite.setLayoutData(new GridData(SWT.FILL, SWT.FILL, true, true));
    }

    private void createNonProxiedHostsComposite(Composite parent) {
        nonProxyHostsComposite = new NonProxyHostsComposite(parent, SWT.NONE);
        nonProxyHostsComposite.setLayoutData(new GridData(SWT.FILL, SWT.FILL, true, true));
    }

    protected void performApply() {
        refresh();
        if (providerCombo == null) {
            return;
        }
        int sel = providerCombo.getSelectionIndex();
        proxyEntriesComposite.performApply();
        nonProxyHostsComposite.performApply();
        ProxySelector.setActiveProvider(ProxySelector.unlocalizeProvider(providerCombo.getItem(sel)));
    }

    protected void performDefaults() {
        int index = 1;
        if (providerCombo.getItemCount() == 3) {
            index = 2;
        }
        providerCombo.select(index);
        setProvider(ProxySelector.unlocalizeProvider(providerCombo.getItem(index)));
    }

    public boolean performOk() {
        performApply();
        return super.performOk();
    }

    private void initializeValues() {
        String[] providers = ProxySelector.getProviders();
        String[] localizedProviders = new String[providers.length];
        for (int i = 0; i < localizedProviders.length; i++) {
            localizedProviders[i] = ProxySelector.localizeProvider(providers[i]);
        }
        providerCombo.setItems(localizedProviders);
        providerCombo
                .select(providerCombo.indexOf(ProxySelector.localizeProvider(ProxySelector.getDefaultProvider())));
    }

    protected void setProvider(String name) {
        proxyEntriesComposite.setProvider(name);
        nonProxyHostsComposite.setProvider(name);
        refresh();
    }

    private void refresh() {
        if (proxyEntriesComposite != null) {
            proxyEntriesComposite.refresh();
        }
        if (nonProxyHostsComposite != null) {
            nonProxyHostsComposite.refresh();
        }
    }

    /* (non-Javadoc)
     * @see org.eclipse.jface.dialogs.DialogPage#getTitle()
     */
    @Override
    public String getTitle() {
        return "Proxy";
    }

    /* (non-Javadoc)
     * @see org.eclipse.jface.preference.PreferencePage#doGetPreferenceStore()
     */
    @Override
    protected IPreferenceStore doGetPreferenceStore() {
        // TODO Auto-generated method stub
        return new ScopedPreferenceStore(InstanceScope.INSTANCE, "org.eclipse.ui.net");

    }

}