org.fxmisc.richtext.demo.hyperlink.TextHyperlinkArea Maven / Gradle / Ivy

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package org.fxmisc.richtext.demo.hyperlink;

import javafx.geometry.VPos;

import org.fxmisc.richtext.GenericStyledArea;
import org.fxmisc.richtext.TextExt;
import org.fxmisc.richtext.model.ReadOnlyStyledDocument;
import org.fxmisc.richtext.model.SegmentOps;
import org.fxmisc.richtext.model.TextOps;
import org.reactfx.util.Either;

import java.util.Optional;
import java.util.function.Consumer;

/**
 * Name: TextHyperlinkArea
 * Description: .
 * 
 * Comment: ...
 * 
 * Copyright: Copyright (c) 2016-2019
 * Company: >StA-Soft<
 * @author StA
 * @version 1.0
 */

public class TextHyperlinkArea extends GenericStyledArea, TextStyle>
{

  private static final TextOps STYLED_TEXT_OPS = SegmentOps.styledTextOps();

  private static final HyperlinkOps HYPERLINK_OPS = new HyperlinkOps<>();

  private static final TextOps, TextStyle> EITHER_OPS = STYLED_TEXT_OPS._or(HYPERLINK_OPS, (s1, s2) -> Optional.empty());

  public TextHyperlinkArea(Consumer showLink)
  {
    super(null, (t, p) ->
      {
      },
      TextStyle.EMPTY,
      EITHER_OPS,
      e -> e.getSegment().unify(
        text ->
          createStyledTextNode(t ->
          {
            t.setText(text);
            t.setStyle(e.getStyle().toCss());
          }),
        hyperlink ->
          createStyledTextNode(t ->
          {
            if (hyperlink.isReal())
            {
              t.setText(hyperlink.getDisplayedText());
              t.getStyleClass().add("hyperlink");
              t.setOnMouseClicked(ae -> showLink.accept(hyperlink.getLink()));
            }
          })
      )
    );

    getStyleClass().add("text-hyperlink-area");
    getStylesheets().add(TextHyperlinkArea.class.getResource("text-hyperlink-area.css").toExternalForm());
  }

  public void appendWithLink(String displayedText, String link)
  {
    replaceWithLink(getLength(), getLength(), displayedText, link);
  }

  public void replaceWithLink(int start, int end, String displayedText, String link)
  {
    replace(start, end, ReadOnlyStyledDocument.fromSegment(
      Either.right(new Hyperlink(displayedText, displayedText, link)),
      null,
      TextStyle.EMPTY,
      EITHER_OPS
    ));
  }

  public static TextExt createStyledTextNode(Consumer applySegment)
  {
    TextExt t = new TextExt();
    t.setTextOrigin(VPos.TOP);
    applySegment.accept(t);
    return t;
  }

}