package org.bndtools.core.views.jpm;
import java.io.UnsupportedEncodingException;
import java.net.URLEncoder;
import java.util.Iterator;
import java.util.regex.Matcher;
import java.util.regex.Pattern;
import org.eclipse.jface.action.Action;
import org.eclipse.jface.action.IToolBarManager;
import org.eclipse.jface.resource.ImageDescriptor;
import org.eclipse.jface.viewers.ISelection;
import org.eclipse.jface.viewers.IStructuredSelection;
import org.eclipse.swt.SWT;
import org.eclipse.swt.browser.Browser;
import org.eclipse.swt.browser.LocationAdapter;
import org.eclipse.swt.browser.LocationEvent;
import org.eclipse.swt.widgets.Composite;
import org.eclipse.ui.ISelectionListener;
import org.eclipse.ui.ISelectionService;
import org.eclipse.ui.IWorkbenchPart;
import org.eclipse.ui.part.ViewPart;
import org.eclipse.ui.plugin.AbstractUIPlugin;
import bndtools.Plugin;
import bndtools.model.repo.ContinueSearchElement;
public class JPMBrowserView extends ViewPart implements ISelectionListener {
private static final String HTTPS_URL = "https://www.jpm4j.org/";
private static final String HTTP_URL = "http://www.jpm4j.org/";
private static final String SEARCH_PREFIX = "https://www.jpm4j.org/#!/search?q=";
private final ImageDescriptor backImg = AbstractUIPlugin.imageDescriptorFromPlugin(Plugin.PLUGIN_ID, "icons/back.png");
private final ImageDescriptor forwardImg = AbstractUIPlugin.imageDescriptorFromPlugin(Plugin.PLUGIN_ID, "icons/forward.png");
private final Pattern stripWildcardsPattern = Pattern.compile("[\\*\\s]*([^\\*]*)");
private Browser browser;
private Action backAction;
private Action forwardAction;
private ISelectionService selectionService;
@Override
public void createPartControl(Composite parent) {
browser = new Browser(parent, SWT.NONE);
createActions();
// Prevent navigation away from JPM4J.org, and redirect from HTTP back to HTTPS
browser.addLocationListener(new LocationAdapter() {
@Override
public void changing(LocationEvent event) {
if (event.location.startsWith(HTTPS_URL))
return;
if (event.location.startsWith(HTTP_URL))
event.location = event.location.replaceFirst(HTTP_URL, HTTP_URL);
else
event.doit = false;
}
});
browser.setUrl(HTTPS_URL);
selectionService = getViewSite().getWorkbenchWindow().getSelectionService();
selectionService.addSelectionListener(this);
handleWorkbenchSelection(selectionService.getSelection());
}
@Override
public void dispose() {
if (selectionService != null)
selectionService.removeSelectionListener(this);
}
private void createActions() {
backAction = new Action("Back", backImg) {
@Override
public void run() {
browser.back();
}
};
forwardAction = new Action("Forward", forwardImg) {
@Override
public void run() {
browser.forward();
}
};
IToolBarManager tbm = getViewSite().getActionBars().getToolBarManager();
tbm.add(backAction);
tbm.add(forwardAction);
}
@Override
public void setFocus() {}
public void selectionChanged(IWorkbenchPart part, ISelection selection) {
handleWorkbenchSelection(selection);
}
private void handleWorkbenchSelection(ISelection selection) {
if (selection != null && !selection.isEmpty() && selection instanceof IStructuredSelection) {
@SuppressWarnings("rawtypes")
Iterator iter = ((IStructuredSelection) selection).iterator();
while (iter.hasNext()) {
Object obj = iter.next();
if (obj instanceof ContinueSearchElement) {
ContinueSearchElement cont = (ContinueSearchElement) obj;
setSearchFilter(cont.getFilter());
break;
}
}
}
}
public void setSearchFilter(String filter) {
Matcher matcher = stripWildcardsPattern.matcher(filter);
boolean found = matcher.find();
if (found)
filter = matcher.group(1);
try {
String url = SEARCH_PREFIX + URLEncoder.encode(filter, "UTF-8");
String current = browser.getUrl();
if (!url.equals(current))
browser.setUrl(url);
} catch (UnsupportedEncodingException e) {
// stupid Java
}
}
}