在JEditorPane中发生HyperlinkEvent时如何取消对MouseEvent的响应？

tripofdream 2003-11-19 10:49:30

......
JEditorPane jp = new JEditorPane();
jp.addMouseListener(new MouseAdapter() {
public void mouseClicked(MouseEvent e) {
....
}
});
jp.addHyperlinkListener(new HyperlinkListener(){
public void hyperlinkUpdate(HyperlinkEvent e) {
....
}
});
如何在点击JEditorPane中的超链接时不执行mouseClicked()中的动作？

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tripofdream 2003-11-20

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我现在的方案是延时200毫秒，正常情况不会有问题，但肯定会有不可预知的意外情况.

bluesmile979 2003-11-20

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我不太清楚有没有现成的函数可以用，如果担心不太安全的话。楼主看看下面这种处理是否可行？100毫秒左右的损失应该是可以被忽略的，这样可以保证你的HyperlinkEvent肯定会先上来。

jp.addMouseListener(new MouseAdapter() {
public void mouseClicked(MouseEvent e) {
sleep(50);
if(flag){
....
}
}
});
jp.addHyperlinkListener(new HyperlinkListener(){
public void hyperlinkUpdate(HyperlinkEvent e) {
flag = false;
....
sleep(100);
flag = true;
}
});

tripofdream 2003-11-20

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to up:
In my test,HyperlinkEvent was generated 10~30 milliseconds earlier before MouseEvent.

tripofdream 2003-11-20

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原来的方案是用button的，不过觉得button破坏了界面的和协性。用右键与用户习惯不符。

其实我只是想知道有没有直接的解决方案，看来是没有结果了，先结帐吧。

bluesmile979 2003-11-20

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如果只是为了关闭窗口，添加个button或者一个处理关闭的链接不可以么？

可以区分左右键的

if(e.getButton()==e.BUTTON2){
右键
}

wobelisk 2003-11-20

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sorry, cannot type chinese on my computer

wobelisk 2003-11-20

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I read the source, HyperlinkEvent is generated by mouseClick(). That means your mouseClick() will happen before hyperlinkUpdate(). Because a Mouse Click event will be generated first, then JEditorPane try to check if a link is clicked. If a link is clicked, a HyperlinkEvent will be dispatched and hyperlinkUpdate() is called.

Two suggestion:
1. try to use another framework, avoid processing mouseClick and hyperlinkUpdate at the same time
2. If have to, under mouseClick() you must check the mouse position is within a link before doing other things.
There are two types of link, <a href> and <map>. Copy the source code from
HTMLEditoreKit.LinkController can solve <a href>. But you cannot solve <map>, unless you write your own codes. Because to determine if it's a <map> link, HTMLDocument and java.swing.text.html.Map class are used. You're unlucky, Map is package-access class. So methods of Map, such as Map.getArea(), cannot be accessed in your codes because I don't think you'll put your code under java.swing.text.html package.

If no <map>, I can give you a solution. If you want to handle <map>, try to write your own code.

tripofdream 2003-11-20