private void render(Emoji node, NodeRendererContext context, HtmlWriter html) {
    Emoji emoji = node;
    EmojiCheatSheet.EmojiShortcut shortcut = EmojiCheatSheet.getImageShortcut(emoji.getText().toString());

    if (shortcut == null) {
        // output as text
        html.text(":");
        context.renderChildren(node);
        html.text(":");
    } else {
        ResolvedLink resolvedLink = context.resolveLink(LinkType.LINK, rootImagePath + shortcut.image + "." + extImage, null);

        html.attr("src", resolvedLink.getUrl());
        html.attr("alt", "emoji " + shortcut.category + ":" + shortcut.name);
        if (!attrImageSize.isEmpty())
            html.attr("height", attrImageSize).attr("width", attrImageSize);
        if (!attrAlign.isEmpty()) html.attr("align", attrAlign);
        html.withAttr(resolvedLink);
        html.tagVoid("img");
    }
}
 

private void render(final VideoLink node, final NodeRendererContext context, final HtmlWriter html) {
    final String name = node.getText().toString();

    if (context.isDoNotRenderLinks()) {
        context.renderChildren(node);
    } else if (!TextUtils.isEmpty(name)) {
        ResolvedLink resolvedLink = context.resolveLink(LinkType.LINK, node.getUrl().unescape(), null);
        if (name.equals("youtube") ||
                name.equals("yt")) {
            html.attr("class", "player yt-player");
            html.withAttr().tag("div");
            html.attr("type", "text/html");
            html.attr("frameborder", "0");

            html.attr("allowfullscreen", "");
            html.attr("src", String.format("https://www.youtube.com/embed/%s", resolvedLink.getUrl()));
            html.srcPos(node.getChars()).withAttr(resolvedLink).tag("iframe");
            html.tag("/iframe");
            html.tag("/div");
        } else {
            context.renderChildren(node);
        }
    }
}
 

@Override
public NodeRenderer create(DataHolder options) {
    return new NodeRenderer() {
        @Override
        public Set<NodeRenderingHandler<?>> getNodeRenderingHandlers() {
            HashSet<NodeRenderingHandler<?>> set = new HashSet<>();
            set.add(new NodeRenderingHandler<>(Image.class, new CustomNodeRenderer<Image>() {
                @Override
                public void render(Image node, NodeRendererContext context, HtmlWriter html) {
                    if (!context.isDoNotRenderLinks()) {
                        String altText = new TextCollectingVisitor().collectAndGetText(node);

                        ResolvedLink resolvedLink = context.resolveLink(LinkType.IMAGE, node.getUrl().unescape(), null);
                        String url = resolvedLink.getUrl();

                        if (!node.getUrlContent().isEmpty()) {
                            // reverse URL encoding of =, &
                            String content = Escaping.percentEncodeUrl(node.getUrlContent()).replace("+", "%2B").replace("%3D", "=").replace("%26", "&amp;");
                            url += content;
                        }

                        final int index = url.indexOf('@');

                        if (index >= 0) {
                            String[] dimensions = url.substring(index + 1, url.length()).split("\\|");
                            url = url.substring(0, index);

                            if (dimensions.length == 2) {
                                String width = dimensions[0] == null || dimensions[0].equals("") ? "auto" : dimensions[0];
                                String height = dimensions[1] == null || dimensions[1].equals("") ? "auto" : dimensions[1];
                                html.attr("style", "width: " + width + "; height: " + height);
                            }
                        }

                        html.attr("src", url);
                        html.attr("alt", altText);

                        if (node.getTitle().isNotNull()) {
                            html.attr("title", node.getTitle().unescape());
                        }

                        html.srcPos(node.getChars()).withAttr(resolvedLink).tagVoid("img");
                    }
                }
            }));
            return set;
        }
    };
}
 

@Override
public NodeRenderer create(DataHolder options) {
    return new NodeRenderer() {
        @Override
        public Set<NodeRenderingHandler<?>> getNodeRenderingHandlers() {
            HashSet<NodeRenderingHandler<?>> set = new HashSet<>();
            set.add(new NodeRenderingHandler<>(Image.class, new CustomNodeRenderer<Image>() {
                @Override
                public void render(Image node, NodeRendererContext context, HtmlWriter html) {
                    if (!context.isDoNotRenderLinks()) {
                        String altText = new TextCollectingVisitor().collectAndGetText(node);

                        ResolvedLink resolvedLink = context.resolveLink(LinkType.IMAGE, node.getUrl().unescape(), null);
                        String url = resolvedLink.getUrl();

                        if (!node.getUrlContent().isEmpty()) {
                            // reverse URL encoding of =, &
                            String content = Escaping.percentEncodeUrl(node.getUrlContent()).replace("+", "%2B").replace("%3D", "=").replace("%26", "&amp;");
                            url += content;
                        }

                        final int index = url.indexOf('@');

                        if (index >= 0) {
                            String[] dimensions = url.substring(index + 1, url.length()).split("\\|");
                            url = url.substring(0, index);

                            if (dimensions.length == 2) {
                                String width = TextUtils.isEmpty(dimensions[0]) ? "auto" : dimensions[0];
                                String height = TextUtils.isEmpty(dimensions[1]) ? "auto" : dimensions[1];
                                html.attr("style", "width: " + width + "; height: " + height);
                            }
                        }

                        html.attr("src", url);
                        html.attr("alt", altText);

                        if (node.getTitle().isNotNull()) {
                            html.attr("title", node.getTitle().unescape());
                        }

                        html.srcPos(node.getChars()).withAttr(resolvedLink).tagVoid("img");
                    }
                }
            }));
            return set;
        }
    };
}
 

private void render(final Twitter node, final NodeRendererContext context, final HtmlWriter html) {
    final String name = node.getText().toString();

    if (context.isDoNotRenderLinks()) {
        context.renderChildren(node);
    } else if (!TextUtils.isEmpty(name)) {
        String value, url;

        try {
            value = URLEncoder.encode(context.resolveLink(LinkType.LINK, node.getUrl().unescape(), null).getUrl(), "utf-8");
        } catch (UnsupportedEncodingException e) {
            context.renderChildren(node);
            return;
        }

        if (name.equals("tweet")) {
            url = String.format("https://publish.twitter.com/oembed?url=https://twitter.com/twitter/status/%s", value);
        } else if (name.equals("tweet-hide-cards")) {
            url = String.format("https://publish.twitter.com/oembed?url=https://twitter.com/twitter/status/%s&hide_media=true", value);
        } else if (name.equals("follow")) {
            mHtml = String.format("<a href=\"https://twitter.com/%s\" data-size=\"large\" class=\"twitter-follow-button\" data-show-count=\"true\">Follow @%s</a><script async src=\"https://platform.twitter.com/widgets.js\" charset=\"utf-8\"></script>",
                    value, value);
            html.srcPos(node.getChars()).append(mHtml);
            return;
        } else {
            context.renderChildren(node);
            return;
        }

        mHtml = null;
        new Thread(new LoadTweetRunnable(url)).start();
        mCondition.close();
        mCondition.block();

        if (mHtml == null) {
            context.renderChildren(node);
        } else {
            mHtml = mHtml.replaceAll("src=\"//", "src=\"https://");
            html.srcPos(node.getChars()).append(mHtml);
        }
    }
}