Firefox：从匿名 JavaScript 函数传递事件

发布于 2024-07-08 22:32:06 字数 977 浏览 10 评论 0原文

在这段简短的代码中，内联事件起作用了 - “事件”被传递给 testKeyPress 函数

<textarea id="source"
    onkeydown= "showCursPos(this); 
    var tf=testKeyPress(event);
    document.onkeypress=function(){return tf};
    document.onkeydown=function(){return tf}; " ></textarea>

function testKeyPress(e){
    if (e.ctrlKey==true ){
        if (e.which == null ){kcode=e.keyCode; }  // IE
        else if (e.which > 0){kcode=e.which; }    // gecko
        return testValidity(kcode);   //returns true-false
    }
}

但是，在这个匿名版本中，事件不是在 gecko 中传递的：

<textarea id="source"></textarea>

$("source").onkeydown = function(){ 
    showCursPos(this);  // this function works
    // next event is passed in IE, but not gecko
    var tf=testKeyPress(event); 
    // remaining functions work if value is forced
    document.onkeypress=function(){return tf}; 
    document.onkeydown=function(){return tf}; 
    }

如何传递函数自己的事件？

原文

In this abbreviated code, the inline event works - the "event" is passed to the testKeyPress function

<textarea id="source"
    onkeydown= "showCursPos(this); 
    var tf=testKeyPress(event);
    document.onkeypress=function(){return tf};
    document.onkeydown=function(){return tf}; " ></textarea>

function testKeyPress(e){
    if (e.ctrlKey==true ){
        if (e.which == null ){kcode=e.keyCode; }  // IE
        else if (e.which > 0){kcode=e.which; }    // gecko
        return testValidity(kcode);   //returns true-false
    }
}

However, in this anonymous version, the event is not passed in gecko:

<textarea id="source"></textarea>

$("source").onkeydown = function(){ 
    showCursPos(this);  // this function works
    // next event is passed in IE, but not gecko
    var tf=testKeyPress(event); 
    // remaining functions work if value is forced
    document.onkeypress=function(){return tf}; 
    document.onkeydown=function(){return tf}; 
    }

How does one pass the function's own event?

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吾家有女初长成 2024-07-15 22:32:06

是的，有一个事件对象作为参数。

您可以通过

var e=arguments[0] || event; // Firefox via the argument, but IE don't

我不知道它们是否完全相同，但我将读为 xxx.ononkeydown=function( event){func(event);};

参考 event @ Mozilla.org

Yes, there is an event object as arguments.

You can get it by

var e=arguments[0] || event; // Firefox via the argument, but IE don't

I don't know if they exact the same, but I read <xxx onkeydown="func(event);"> as xxx.ononkeydown=function(event){func(event);};

Reference event @ Mozilla.org

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好久不见√ 2024-07-15 22:32:06

工作起来就像一个魅力。对我的原始代码的修改成功地将事件从匿名函数传递到我的四个浏览器中的命名函数：IE6、FF2、NS7.2、OP9.22

$("source").onkeydown = function(){ 
    var e=arguments[0] || event; 
    showCursPos(this);  
    var tf=testKeyPress(e); 
    document.onkeypress=function(){return tf}; 
    document.onkeydown=function(){return tf}; 
}

Worked like a charm. This modification to my original code successfully passes the event from the anonymous function to the named function in my four browsers: IE6, FF2, NS7.2, OP9.22

$("source").onkeydown = function(){ 
    var e=arguments[0] || event; 
    showCursPos(this);  
    var tf=testKeyPress(e); 
    document.onkeypress=function(){return tf}; 
    document.onkeydown=function(){return tf}; 
}

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~没有更多了~