应将每个文本框值的Javascript onpaste事件拆分并粘贴到相应的文本框中 [英] Javascript onpaste event of everytext box value should be split and paste in corresponding textbox

问题描述

严格没有jquery请


我有文本1234ABC984IK4H2J我有四个文本框onpaste我需要文本拆分并复制剩余文本框中的

纯粹在javascript中没有jquery as我的应用程序不支持jquery和IE> 8函数
所以没有函数支持如querySelectorAll和addEventlistener

Strictly no jquery please
I have text 1234ABC984IK4H2J and I have four text box onpaste i need text to split and copied in remaining text box Purely in javascript no jquery as my application doesn't support jquery and IE>8 functions so no function supports like querySelectorAll and addEventlistener

HTML

<td><input type="text" id="id1" maxlength="4" size="4" onpaste="paste();"></input></td>
<td><input type="text" id="id2" maxlength="4" size="4" onpaste="paste();"></input></td>
<td><input type="text" id="id3" maxlength="4" size="4" onpaste="paste();"></input></td>
<td><input type="text" id="id4" maxlength="4" size="4" onpaste="paste();"></input></td>

JS

function paste(){
    var inputs = new Array(6);
    inputs[0] = document.getElementById("id1");
    inputs[1] = document.getElementById("id2");
    inputs[2] = document.getElementById("id3");
    inputs[3] = document.getElementById("id4");
    for (var i = 0, len = inputs.length;i < len; i++) {
      var startingField = inputs[i].indexOf(e.target);
      if (e.target.value.length > 4) {
         completeTextFields(this.value, startingField);
      }
    } 
}

//this is the code to fill the remaining text boxs
function completeTextFields(code, startingField) {
    var fillFields = inputs.slice(startingField);
        for (var i = 0, len = fillFields.length;i < len; i++) {
            fillFields[i].value = code.slice(i * 4, i * 4 + 4);
        }
}

推荐答案

尝试找到一种从pasteEvent获取文本的方法，最后找到它： JavaScript在粘贴事件上获取剪贴板数据（跨浏览器）
所以最后，我可以实现你想要做的。

Try to find a way to get text from pasteEvent, and finally found it: JavaScript get clipboard data on paste event (Cross browser) So Finally, I can achieve what you want to do.

function bind() {
  var inputs = [];
  inputs[0] = document.getElementById("id1");
  inputs[1] = document.getElementById("id2");
  inputs[2] = document.getElementById("id3");
  inputs[3] = document.getElementById("id4");
  
  function paste(e) {
    // Prevent the real paste to change the input value.
    e.preventDefault();
    var pastedText;
    // Get text from paste event.
    if(window.clipboardData && window.clipboardData.getData ) {
      pastedText = window.clipboardData.getData('Text');
    }  else if( e.clipboardData && e.clipboardData.getData ){
      pastedText = e.clipboardData.getData('text/plain');
    }
    // Start to fill text from left to right.
    var i, len, str, startPlace = false;
      for(i = 0, len = inputs.length ; i < len && pastedText.length > 0 ; ++i) {
        // SKip input before selected one.
        if (this === inputs[i]) { // The current focused input
          startPlace = true;
          var lengthRemain = 4 - this.value.length;
          str = pastedText.slice(0, lengthRemain);
          inputs[i].value += str;
          pastedText = pastedText.slice(lengthRemain); 
        } else if (startPlace) {
         // Cut a string from pastedStr, at most 4 char.
         str = pastedText.slice(0, 4);
         inputs[i].value = str;
         // Cut the fron 4 char from pastedStr.
         pastedText = pastedText.slice(4); 
        }        
      }
    return false;
    }
    
  // Add EventListener, paste event will be a input param.
  var i, len;
  for (i = 0, len = inputs.length; i < len; ++i) {
    inputs[i].addEventListener("paste", paste);
  }
}
// Bind
bind();

<td><input type="text" id="id1" maxlength="4" size="4" /></td>
<td><input type="text" id="id2" maxlength="4" size="4" /></td>
<td><input type="text" id="id3" maxlength="4" size="4" /></td>
<td><input type="text" id="id4" maxlength="4" size="4" /></td>

请检查它是否符合要求。

Please check if its what you want.

这篇关于应将每个文本框值的Javascript onpaste事件拆分并粘贴到相应的文本框中的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！