java - 将MouseListener添加到程序中

Question

我试图覆盖MouseAdapter的mouseClicked函数，然后我可以在我的程序中使用它，如下所示:

import java.awt.Component;
import java.awt.event.MouseAdapter;
import java.awt.event.MouseEvent;
import java.io.IOException;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.io.Reader;
import java.net.URL;
import java.net.URLConnection;
import javax.swing.JFrame;
import javax.xml.parsers.ParserConfigurationException;
import org.lobobrowser.html.HtmlRendererContext;
import org.lobobrowser.html.UserAgentContext;
import org.lobobrowser.html.domimpl.HTMLLinkElementImpl;
import org.lobobrowser.html.gui.HtmlPanel;
import org.lobobrowser.html.parser.DocumentBuilderImpl;
import org.lobobrowser.html.parser.InputSourceImpl;
import org.lobobrowser.html.test.SimpleHtmlRendererContext;
import org.lobobrowser.html.test.SimpleUserAgentContext;
import org.w3c.dom.Document;
import org.w3c.dom.html2.HTMLLinkElement;
import org.w3c.dom.html2.HTMLElement;
import org.xml.sax.InputSource;
import org.xml.sax.SAXException;

public  class test {



public static void main(String[] args) throws SAXException, 
            IOException, ParserConfigurationException {

        String uri = "http://docs.oracle.com/javase/1.5.0/docs/api/java/awt/event/MouseAdapter.html";
        URL url = new URL(uri);
        URLConnection connection = url.openConnection();
        InputStream in = connection.getInputStream();
        Reader reader = new InputStreamReader(in);
        InputSource is = new InputSourceImpl(reader, uri);
        UserAgentContext uAgent = new SimpleUserAgentContext();
        final HtmlPanel htmlPanel = new HtmlPanel();
        final HtmlRendererContext rendererContext = (HtmlRendererContext) 
                new LocalHtmlRendererContext(htmlPanel, uAgent);
        DocumentBuilderImpl builder = new DocumentBuilderImpl(uAgent, rendererContext);
        Document document = builder.parse(is);
        JFrame frame = new JFrame();
        frame.setContentPane(htmlPanel);


        htmlPanel.addMouseListener(new MouseAdapter() {

            @Override
            public void mouseClicked(MouseEvent e) {
                System.out.println("adr is equal to" + rendererContext.getCurrentURL());

                System.out.println("Clicked!" + e);
            }
        });

        frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
        htmlPanel.setDocument(document, rendererContext);
        frame.setSize(400, 800);
        frame.setVisible(true);
    }

    private static class LocalHtmlRendererContext extends SimpleHtmlRendererContext {

        public LocalHtmlRendererContext(HtmlPanel contextComponent, UserAgentContext uAgent) {
            super(contextComponent);
        }
    }
}

但它不起作用。如果我点击表单的任何部分，什么也不会发生。

我尝试了 htmlPanel.addMouseListener(new MouseAdapter() 和 frame.addMouseListener(new MouseAdapter()) 但没有帮助。

编辑:

我尝试了你的建议，我选择了 BrowsertPanel 而不是 HtmlPanel，然后我尝试获取其组件，如下所示:

org.lobobrowser.gui.AddressBarPanel[,0,0,0x0,invalid,layout=javax.swing.BoxLayout,alignmentX=0.0,alignmentY=0.0,border=,flags=9,maximumSize=,minimumSize=,preferredSize=]
org.lobobrowser.gui.SharedToolBarPanel[,0,0,0x0,invalid,layout=javax.swing.BoxLayout,alignmentX=0.0,alignmentY=0.0,border=,flags=9,maximumSize=,minimumSize=,preferredSize=]
org.lobobrowser.gui.FillerComponent[,0,0,0x0,invalid,layout=org.lobobrowser.util.gui.WrapperLayout,alignmentX=0.0,alignmentY=0.0,border=,flags=0,maximumSize=java.awt.Dimension[width=32767,height=32767],minimumSize=java.awt.Dimension[width=0,height=0],preferredSize=java.awt.Dimension[width=32767,height=32767]]
org.lobobrowser.gui.StatusBarPanel[,0,0,0x0,invalid,layout=javax.swing.BoxLayout,alignmentX=0.0,alignmentY=0.0,border=javax.swing.border.BevelBorder@c2a132,flags=9,maximumSize=,minimumSize=,preferredSize=]

我还添加了一个 navigationListener，当它导航时，我收到如下事件:

org.lobobrowser.ua.NavigationEvent[source=FramePanel[windowId=BrowserPanel.10481519,hashCode=23491286,parent=org.lobobrowser.gui.FillerComponent[,0,25,584x316,layout=org.lobobrowser.util.gui.WrapperLayout,alignmentX=0.0,alignmentY=0.0,border=,flags=0,maximumSize=java.awt.Dimension[width=32767,height=32767],minimumSize=java.awt.Dimension[width=0,height=0],preferredSize=java.awt.Dimension[width=32767,height=32767]]]]

但我觉得我迷失在这些组件中，似乎 FillerComponent 或 FramePanel 负责渲染，即便如此，我不知道如何向它们添加监听器.

还发现了这个Link有人描述了解决问题的步骤，但对我来说似乎很复杂？有没有伪代码可以分发？

Answer 1

此代码(是 SSCCE &)有效。尝试一次更改一行，直到看到错误 list 。

import java.awt.event.*;
import javax.swing.*;
import java.net.URL;

public  class test {

    public static void main(String[] args) throws Exception {

        String uri = "http://docs.oracle.com/javase/1.5.0/docs/api/java/awt/event/MouseAdapter.html";
        final URL url = new URL(uri);
        JEditorPane htmlPanel = new JEditorPane(url);
        JFrame frame = new JFrame();
        frame.setContentPane(htmlPanel);

        htmlPanel.addMouseListener(new MouseAdapter() {
            @Override
            public void mouseClicked(MouseEvent e) {
                System.out.println("adr is equal to" + url);

                System.out.println("Clicked!" + e);
            }
        });

        frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
        frame.setSize(400, 800);
        frame.setVisible(true);
    }
}

更新

..seems bug is from htmlpanel

根据 StanislavL 的评论，我做了一些挖掘。看来是SimpleBrowserFrame扩展 HtmlPanel & 提供方法 getComponent()其中..

Gets the component that renders the frame. ..

如果使用了SimpleBrowser，您可以将监听器添加到子级中，这样就可以工作了。诚然，我只是在快速浏览文档后猜测。