package flow.netbeans.markdown;
import flow.netbeans.markdown.api.RenderOption;
import flow.netbeans.markdown.api.Renderable;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.io.File;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.PrintStream;
import java.net.URL;
import java.nio.charset.Charset;
import java.util.EnumSet;
import java.util.Set;
import org.netbeans.api.queries.FileEncodingQuery;
import org.openide.awt.ActionID;
import org.openide.awt.ActionReference;
import org.openide.awt.ActionReferences;
import org.openide.awt.ActionRegistration;
import org.openide.awt.HtmlBrowser.URLDisplayer;
import org.openide.util.Exceptions;
import org.openide.util.NbBundle.Messages;
@ActionID(category = "File",
id = "flow.netbeans.markdown.MarkdownViewHtmlAction")
@ActionRegistration(displayName = "#CTL_MarkdownViewHtmlAction", iconBase = "flow/netbeans/markdown/resources/action-view.png")
@ActionReferences({
@ActionReference(path = "Editors/text/x-markdown/Toolbars/Default", position = 270100),
@ActionReference(path = "Editors/text/x-markdown/Popup", position = 0),
@ActionReference(path = "Loaders/text/x-markdown/Actions", position = 251)
})
@Messages("CTL_MarkdownViewHtmlAction=View HTML")
public final class MarkdownViewHtmlAction implements ActionListener {
private final MarkdownDataObject context;
public MarkdownViewHtmlAction(MarkdownDataObject context) {
this.context = context;
}
@Override
public void actionPerformed(ActionEvent ev) {
try {
Renderable renderable = context.getLookup().lookup(Renderable.class);
Set<RenderOption> renderOptions = EnumSet.of(
RenderOption.PREFER_EDITOR,
RenderOption.RESOLVE_IMAGE_URLS);
String htmlText = renderable.renderAsHtml(renderOptions);
File temp = File.createTempFile("preview-" + context.getPrimaryFile().getName(), ".html");
temp.deleteOnExit();
// get file encoding
Charset encoding = FileEncodingQuery.getEncoding(context.getPrimaryFile());
PrintStream out = new PrintStream(new FileOutputStream(temp), false, encoding.name());
out.print(htmlText);
out.close();
URL url = temp.toURI().toURL();
URLDisplayer.getDefault().showURLExternal(url);
} catch (IOException ex) {
Exceptions.printStackTrace(ex);
}
}
}