bundles/org.eclipse.wst.sse.ui/src/org/eclipse/wst/sse/ui/internal/UnknownContentTypeDialog.java

package org.eclipse.wst.sse.ui.internal;

import org.eclipse.jface.dialogs.IDialogConstants;
import org.eclipse.jface.dialogs.MessageDialogWithToggle;
import org.eclipse.jface.preference.IPreferenceStore;
import org.eclipse.jface.preference.PreferenceDialog;
import org.eclipse.swt.SWT;
import org.eclipse.swt.events.SelectionAdapter;
import org.eclipse.swt.events.SelectionEvent;
import org.eclipse.swt.widgets.Composite;
import org.eclipse.swt.widgets.Control;
import org.eclipse.swt.widgets.Link;
import org.eclipse.swt.widgets.Shell;
import org.eclipse.ui.dialogs.PreferencesUtil;

/**
 * Message dialog informing user that an editor was open on unsupported
 * content type
 */
public class UnknownContentTypeDialog extends MessageDialogWithToggle {

	public UnknownContentTypeDialog(Shell parent, IPreferenceStore store, String key) {
		// set message to null in super so that message does not appear twice
		super(parent, SSEUIMessages.UnknownContentTypeDialog_0, null, null, INFORMATION, new String[]{IDialogConstants.OK_LABEL}, 0, SSEUIMessages.UnknownContentTypeDialog_1, false);
		setPrefStore(store);
		setPrefKey(key);
	}

	protected void buttonPressed(int buttonId) {
		super.buttonPressed(buttonId);

		// overwritten so that value stored is boolean, not string
		if (buttonId != IDialogConstants.CANCEL_ID && getToggleState() && getPrefStore() != null && getPrefKey() != null) {
			switch (buttonId) {
				case IDialogConstants.YES_ID :
				case IDialogConstants.YES_TO_ALL_ID :
				case IDialogConstants.PROCEED_ID :
				case IDialogConstants.OK_ID :
					getPrefStore().setValue(getPrefKey(), false);
					break;
				case IDialogConstants.NO_ID :
				case IDialogConstants.NO_TO_ALL_ID :
					getPrefStore().setValue(getPrefKey(), true);
					break;
			}
		}

	}

	protected Control createMessageArea(Composite composite) {
		super.createMessageArea(composite);
		Link messageLink = new Link(composite, SWT.NONE);
		messageLink.setText(SSEUIMessages.UnknownContentTypeDialog_2);
		messageLink.addSelectionListener(new SelectionAdapter() {
			public void widgetSelected(SelectionEvent e) {
				linkClicked();
			}
		});
		return composite;
	}

	private void linkClicked() {
		String pageId = "org.eclipse.ui.preferencePages.ContentTypes"; //$NON-NLS-1$
		PreferenceDialog dialog = PreferencesUtil.createPreferenceDialogOn(getShell(), pageId, new String[]{pageId}, null);
		dialog.open();
	}
}