Question

I have this code that sets attribute "onclick" to all submit buttons to call a certain function. The userscript is going to run on social network sites(Facebook) and encrypt the messages the users send. So I want on the click event to pause the default action, access the message that it sends somehow (I guess with formData ), run encrypt function on the text message and continue the submit action with the message sent encrypted. So here is the script:

$( textarea , window.content.document)
.closest( form )
.find( input[type=submit] )
.attr("onclick","dont();");

function dont(){
//access formData sent with the submit action and encrypt the message
};

Answer 1

它认为你可能没有返回。在浮标注中,在职能不停止行动之前不会返回。

$( textarea , window.content.document)
.closest( form )
.find( input[type=submit] )
.attr("onclick","return dont();");

function dont(){
//access formData sent with the submit action and encrypt the message
//be sure to return true or false depending on if you want the action submitted
};

Answer 2

如下文所示,你不能将浮标功能放在提交纽芬兰州,而是可以直接界定收集和加密形式数据的功能。

<form name="sampleForm" method="post" onsubmit="return dont()" enctype="multipart/form-data" action="someurl">


function dont()
{
    //code to access the form data and encrypt

    if(error)
       return false;  //Stops the submission of the form
    else
      return true;

}

或

简言之,它没有提交(投入类型=提交书)而是规定了立数功能,如下文所示:

<input type="button" value="submit" onclick="dont()" />

function dont()
{
    //code to access the form data and encrypt

    if(error)
       alert("Failed")  //Stops the submission of the form
    else
      document.forms[0].submit();

}

希望这一帮助。

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