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使用 Jsoup 解析并渲染 HTML 页面 #3321

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Merged
Glavo merged 8 commits into from
Oct 13, 2024
Merged

使用 Jsoup 解析并渲染 HTML 页面 #3321

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4fab95c
Update UpgradeDialog
Glavo Oct 12, 2024
4d9f047
update
Glavo Oct 12, 2024
da654bd
update
Glavo Oct 12, 2024
162437e
update
Glavo Oct 12, 2024
23f0888
update
Glavo Oct 12, 2024
09c5024
update
Glavo Oct 12, 2024
5cd0358
update
Glavo Oct 12, 2024
285d19f
update cursor
Glavo Oct 13, 2024
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50 changes: 0 additions & 50 deletions HMCL/src/main/java/org/jackhuang/hmcl/ui/FXUtils.java
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Original file line number Diff line number Diff line change
Expand Up @@ -52,7 +52,6 @@
import org.glavo.png.PNGType;
import org.glavo.png.PNGWriter;
import org.glavo.png.javafx.PNGJavaFXUtils;
import org.jackhuang.hmcl.task.Schedulers;
import org.jackhuang.hmcl.task.Task;
import org.jackhuang.hmcl.ui.animation.AnimationUtils;
import org.jackhuang.hmcl.ui.construct.JFXHyperlink;
Expand All @@ -70,12 +69,9 @@
import org.xml.sax.InputSource;
import org.xml.sax.SAXException;

import javax.swing.*;
import javax.swing.event.HyperlinkEvent;
import javax.xml.parsers.DocumentBuilder;
import javax.xml.parsers.DocumentBuilderFactory;
import javax.xml.parsers.ParserConfigurationException;
import java.awt.*;
import java.io.*;
import java.lang.ref.WeakReference;
import java.lang.reflect.Constructor;
Expand Down Expand Up @@ -527,52 +523,6 @@ public static void openLink(String link) {
});
}

public static void showWebDialog(String title, String content) {
showWebDialog(title, content, 800, 480);
}

public static void showWebDialog(String title, String content, int width, int height) {
try {
WebStage stage = new WebStage(width, height);
stage.getWebView().getEngine().loadContent(content);
stage.setTitle(title);
stage.showAndWait();
} catch (NoClassDefFoundError | UnsatisfiedLinkError e) {
LOG.warning("WebView is missing or initialization failed, use JEditorPane replaced", e);

SwingUtils.initLookAndFeel();
SwingUtilities.invokeLater(() -> {
final JFrame frame = new JFrame(title);
frame.setSize(width, height);
frame.setDefaultCloseOperation(JFrame.DISPOSE_ON_CLOSE);
frame.setLocationByPlatform(true);
frame.setIconImage(new ImageIcon(FXUtils.class.getResource("/assets/img/icon.png")).getImage());
frame.setLayout(new BorderLayout());

final JProgressBar progressBar = new JProgressBar();
progressBar.setIndeterminate(true);
frame.add(progressBar, BorderLayout.PAGE_START);

Schedulers.defaultScheduler().execute(() -> {
final JEditorPane pane = new JEditorPane("text/html", content);
pane.setEditable(false);
pane.addHyperlinkListener(event -> {
if (event.getEventType() == HyperlinkEvent.EventType.ACTIVATED) {
openLink(event.getURL().toExternalForm());
}
});
SwingUtilities.invokeLater(() -> {
progressBar.setVisible(false);
frame.add(new JScrollPane(pane), BorderLayout.CENTER);
});
});

frame.setVisible(true);
frame.toFront();
});
}
}

public static <T> void bind(JFXTextField textField, Property<T> property, StringConverter<T> converter) {
textField.setText(converter == null ? (String) property.getValue() : converter.toString(property.getValue()));
TextFieldBindingListener<T> listener = new TextFieldBindingListener<>(textField, property, converter);
Expand Down
266 changes: 266 additions & 0 deletions HMCL/src/main/java/org/jackhuang/hmcl/ui/HTMLRenderer.java
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Original file line number Diff line number Diff line change
@@ -0,0 +1,266 @@
/*
* Hello Minecraft! Launcher
* Copyright (C) 2024 huangyuhui <huanghongxun2008@126.com> and contributors
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <https://www.gnu.org/licenses/>.
*/
package org.jackhuang.hmcl.ui;

import javafx.scene.Cursor;
import javafx.scene.image.Image;
import javafx.scene.image.ImageView;
import javafx.scene.text.Text;
import javafx.scene.text.TextFlow;
import org.jsoup.nodes.Node;
import org.jsoup.nodes.TextNode;

import java.net.URI;
import java.util.ArrayList;
import java.util.List;
import java.util.function.Consumer;

import static org.jackhuang.hmcl.util.logging.Logger.LOG;

/**
* @author Glavo
*/
public final class HTMLRenderer {
private static URI resolveLink(Node linkNode) {
String href = linkNode.absUrl("href");
if (href.isEmpty())
return null;

try {
return new URI(href);
} catch (Throwable e) {
return null;
}
}

private final List<javafx.scene.Node> children = new ArrayList<>();
private final List<Node> stack = new ArrayList<>();

private boolean bold;
private boolean italic;
private boolean underline;
private boolean strike;
private boolean highlight;
private String headerLevel;
private Node hyperlink;

private final Consumer<URI> onClickHyperlink;

public HTMLRenderer(Consumer<URI> onClickHyperlink) {
this.onClickHyperlink = onClickHyperlink;
}

private void updateStyle() {
bold = false;
italic = false;
underline = false;
strike = false;
highlight = false;
headerLevel = null;
hyperlink = null;

for (Node node : stack) {
String nodeName = node.nodeName();
switch (nodeName) {
case "b":
case "strong":
bold = true;
break;
case "i":
case "em":
italic = true;
break;
case "ins":
underline = true;
break;
case "del":
strike = true;
break;
case "mark":
highlight = true;
break;
case "a":
hyperlink = node;
break;
case "h1":
case "h2":
case "h3":
case "h4":
case "h5":
case "h6":
headerLevel = nodeName;
break;
}
}
}

private void pushNode(Node node) {
stack.add(node);
updateStyle();
}

private void popNode() {
stack.remove(stack.size() - 1);
updateStyle();
}

private void applyStyle(Text text) {
if (hyperlink != null) {
URI target = resolveLink(hyperlink);
if (target != null) {
text.setOnMouseClicked(event -> onClickHyperlink.accept(target));
text.setCursor(Cursor.HAND);
}
text.getStyleClass().add("html-hyperlink");
}

if (hyperlink != null || underline)
text.setUnderline(true);

if (strike)
text.setStrikethrough(true);

if (bold || highlight)
text.getStyleClass().add("html-bold");

if (italic)
text.getStyleClass().add("html-italic");

if (headerLevel != null)
text.getStyleClass().add("html-" + headerLevel);
}

private void appendText(String text) {
Text textNode = new Text(text);
applyStyle(textNode);
children.add(textNode);
}

private void appendImage(Node node) {
String src = node.absUrl("src");
URI imageUri = null;
try {
if (!src.isEmpty())
imageUri = URI.create(src);
} catch (Exception ignored) {
}

String alt = node.attr("alt");

if (imageUri != null) {
URI uri = URI.create(src);

String widthAttr = node.attr("width");
String heightAttr = node.attr("height");

double width = 0;
double height = 0;

if (!widthAttr.isEmpty() && !heightAttr.isEmpty()) {
try {
width = Double.parseDouble(widthAttr);
height = Double.parseDouble(heightAttr);
} catch (NumberFormatException ignored) {
}

if (width <= 0 || height <= 0) {
width = 0;
height = 0;
}
}

Image image = FXUtils.newRemoteImage(uri.toString(), width, height, true, true, false);
if (image.isError()) {
LOG.warning("Failed to load image: " + uri, image.getException());
} else {
ImageView imageView = new ImageView(image);
if (hyperlink != null) {
URI target = resolveLink(hyperlink);
if (target != null) {
imageView.setOnMouseClicked(event -> onClickHyperlink.accept(target));
imageView.setCursor(Cursor.HAND);
}
}
children.add(imageView);
return;
}
}

if (!alt.isEmpty())
appendText(alt);
}

public void appendNode(Node node) {
if (node instanceof TextNode) {
appendText(((TextNode) node).text());
}

String name = node.nodeName();
switch (name) {
case "img":
appendImage(node);
break;
case "li":
appendText("\n \u2022 ");
break;
case "dt":
appendText(" ");
break;
case "p":
case "h1":
case "h2":
case "h3":
case "h4":
case "h5":
case "h6":
case "tr":
if (!children.isEmpty())
appendText("\n\n");
break;
}

if (node.childNodeSize() > 0) {
pushNode(node);
for (Node childNode : node.childNodes()) {
appendNode(childNode);
}
popNode();
}

switch (name) {
case "br":
case "dd":
case "p":
case "h1":
case "h2":
case "h3":
case "h4":
case "h5":
case "h6":
appendText("\n");
break;
}
}

public TextFlow render() {
TextFlow textFlow = new TextFlow();
textFlow.getStyleClass().add("html");
textFlow.getChildren().setAll(children);
return textFlow;
}
}
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