Erstellen eines Kalendersteuerelements mit reinen Javascript_Javascript-Kenntnissen-js-Tutorial-php.cn

Wenn ich in der Vergangenheit das Kalendersteuerelement verwenden wollte, musste ich einen Satz Quellcode direkt aus dem Internet herunterladen. Vor kurzem hatte ich immer die Idee, selbst ein Kalendersteuerelement zu schreiben. Ich habe gerade das Interesse geweckt und die Zeit erlaubt, also habe ich es selbst erkundet, die Funktion ist ziemlich vollständig und die Benutzeroberfläche ist einfach in Ordnung. Der vielleicht bemerkenswerteste Punkt ist die Anzeige einer Schaltfläche auf der rechten Seite des Eingabesteuerelements. Ich habe der Eingabe direkt einen Hintergrund hinzugefügt und dann den Rand der Eingabe entfernt.

Dies ist die erste Version, und ich habe vor, in Zukunft eine reine JavaScript-Version zu erstellen, und ich habe vor, in Zukunft JQuery zu verwenden, um eine zu erstellen.

<!doctype html>
<html>
<head>
<meta charset="utf-8">
<title>日历控件</title>
<style>
#date_text {
  background-image: url(images/input.png);
  background-repeat:no-repeat;
  width: 198px;
  height: 27px;
  border:none;
  padding-left:5px;
  cursor:pointer;
}

#cal_body {
  width: 198px;
  height: auto;
  overflow:hidden;
  border: solid 1px #CCCCCC;
  display: none;
  position:absolute;
  z-index:10;
}

.line {
  width:100%;
  height:26px;
  float:left;
  background-color:#0FF;
  font-size:14px;
}

.cube {
  float:left;
  width:26px;
  height:26px;
  line-height:26px;
  text-align:center;
  margin-left:2px;
  margin-bottom:2px;
}

.btn {
  float:left;
  background-color:#CCC;
  margin-left:10px;
  width:20px;
  height:20px;
  text-align:center;
  line-height:20px;
  border-radius:3px;
  border:solid 1px;
  margin-top:2px;
  cursor:pointer;
}

.year_month {
  float:left;
  margin-left:10px;
  width:90px;
  height:19px;
  text-align:center;
  line-height:19px;
  border-radius:6px;
}

.end_tag {
  height:26px;
  line-height:26px;
  margin-left:10px;
}
</style>
<script>
Date.prototype.toFormatString = function(){
  var result = this.getFullYear() + "-" + (this.getMonth() + 1) + "-" + this.getDate();
  return result;
};
  
var today = new Date();
var month_big = new Array("1","3","5","7","8","10","12"); //包含所有大月的数组
var month_small = new Array("4","6","9","11"); //包含所有小月的数组 

//判断数组array中是否包含元素obj的函数，包含则返回true，不包含则返回false
function array_contain(array, obj){
  for (var i = 0; i < array.length; i++){
    if (array[i] == obj)
      return true;
  }
  return false;
}

//判断年份year是否为闰年，是闰年则返回true，否则返回false
function isLeapYear(year){
  var a = year % 4;
  var b = year % 100;
  var c = year % 400;
  if( ( (a == 0) && (b != 0) ) || (c == 0) ){
    return true;
  }
  return false;
}

function hideCalendar(){
  var calbody = document.getElementById("cal_body");
  cal_body.style.display = "none";
}

function showCalendar(){  
  var calbody = document.getElementById("cal_body");
  var style = getDefaultStyle(calbody,"display");
  if(style == "none")
    cal_body.style.display = "block";
  if(style == "block")
    cal_body.style.display = "none";
  
  var date_text = document.getElementById("date_text");
  var val = date_text.value;
  init(val);
}

function init(val){  
  clearCube();
  
  var temp_date;
  var date_text = document.getElementById("date_text");
  if(val == ""){
    temp_date = today;
    date_text.value = today.toFormatString();
  }
  else{
    temp_date = new Date(val);    
  }
    
  var year = temp_date.getFullYear();
  var month = temp_date.getMonth() + 1;
  var date = temp_date.getDate();
  temp_date.setDate(1);
  
  var start = temp_date.getDay() + 7;
  var end;
  
  if(array_contain(month_big, month)){
    end = start + 31;
  }
  else if(array_contain(month_small, month)){
    end = start + 30;
  }
  else{
    if(isLeapYear(year)){
      end = start + 29;
    }
    else{
      end = start + 28;
    }
  }
  
  for(var i = start; i < end; i++){
    var cube = document.getElementsByClassName("cube").item(i);
    cube.innerHTML = i - start + 1;
    
    cube.style.cursor = "pointer";
    cube.onmouseover = function(){
      this.style.backgroundColor = '#0FF';
    }
    if(date == (i - start + 1))
      cube.style.backgroundColor = '#0FF';
    else{
      cube.onmouseout = function(){
        this.style.backgroundColor = '';
      }
    }
    cube.onclick = function(){
      date_text.value = year + "-" + month + "-" + this.innerHTML;
      
      cal_body.style.display = "none";    
    }
  }
  
  document.getElementById("text_year").value = year;
  document.getElementById("text_month").value = month;
}

function clearCube(){
  for(var i=7; i < 49; i++){
    var cube = document.getElementsByClassName("cube").item(i);
    cube.innerHTML = "";
    cube.style.backgroundColor = "";
  }
}

function yearDown(){
  if(isValidated()){
    var old_year = parseInt(document.getElementById("text_year").value);
    if(old_year > 1960){
      var year = old_year - 1;
      var month = parseInt(document.getElementById("text_month").value);
      var val = year + "-" + month + "-" + 1;
      init(val);
    }
  }
}

function yearUp(){
  if(isValidated()){
    var old_year = parseInt(document.getElementById("text_year").value);
    if(old_year < 2050){
      var year = old_year + 1;
      var month = parseInt(document.getElementById("text_month").value);
      var val = year + "-" + month + "-" + 1;
      init(val);
    }
  }
}

function monthDown(){
  if(isValidated()){
    var old_month = parseInt(document.getElementById("text_month").value)
    if(old_month > 1){
      var year = parseInt(document.getElementById("text_year").value);
      var month = old_month - 1;
      var val = year + "-" + month + "-" + 1;
      init(val);
    }
    else {
      var year = parseInt(document.getElementById("text_year").value) - 1;
      var month = 12;
      var val = year + "-" + month + "-" + 1;
      init(val);
    }
  }
    
}

function monthUp(){
  if(isValidated()){
    var old_month = parseInt(document.getElementById("text_month").value)
    if(old_month < 12){
      var year = parseInt(document.getElementById("text_year").value);
      var month = parseInt(document.getElementById("text_month").value) + 1;
      var val = year + "-" + month + "-" + 1;
      init(val);
    }
    else {
      var year = parseInt(document.getElementById("text_year").value) + 1;
      var month = 1;
      var val = year + "-" + month + "-" + 1;
      init(val);
    }
  }
}

function isValidated(){
  var year = document.getElementById("text_year").value;
  var month = document.getElementById("text_month").value;
  if(isNaN(year) || isNaN(month)){
    alert("请输入正确的年份/月份");
    return false;
  }
  else{
    if(year%1 != 0 || month%1 != 0){
      alert("请输入正确的年份/月份");
      return false;
    }
    else{
      year = parseInt(year);
      if(year < 1960 || year > 2050){
        alert("请输入1960~2050之间的年份！");
        return false;
      }
      else if(month < 1 || month >12){
        alert("请输入正确的月份！");
        return false;
      }
      else{
        return true;
      }
    }
  }
}

function changed(){
  if(isValidated()){
    var year = document.getElementById("text_year").value;
    var month = document.getElementById("text_month").value;
    var val = year + "-" + month + "-" + 1;
    init(val);
  }
}

function getDefaultStyle(obj,attribute){ 
   return obj.currentStyle&#63;obj.currentStyle[attribute]:document.defaultView.getComputedStyle(obj,false)[attribute];
}
</script>
</head>

<body>
<div id="container">
<div id="input_bg"><input id="date_text" type="text" readonly onClick="showCalendar()" /></div>
<div id="cal_body">
  <div class="line"><div class="btn" id="year_down" onClick="yearDown()">-</div><input class="year_month" id="text_year" value="2015" onChange="changed()"><div class="btn" id="year_up" onClick="yearUp()">+</div><span class="end_tag">年</span></div>
  <div class="line"><div class="btn" id="month_down" onClick="monthDown()">-</div><input class="year_month" id="text_month" value="5" onChange="changed()"><div class="btn" id="month_up" onClick="monthUp()">+</div><span class="end_tag">月</span></div>
  <div class="cube">日</div>
  <div class="cube">一</div>
  <div class="cube">二</div>
  <div class="cube">三</div>
  <div class="cube">四</div>
  <div class="cube">五</div>
  <div class="cube">六</div>
  <div class="cube"></div>
  <div class="cube"></div>
  <div class="cube"></div>
  <div class="cube"></div>
  <div class="cube"></div>
  <div class="cube"></div>
  <div class="cube"></div>
  <div class="cube"></div>
  <div class="cube"></div>
  <div class="cube"></div>
  <div class="cube"></div>
  <div class="cube"></div>
  <div class="cube"></div>
  <div class="cube"></div>
  <div class="cube"></div>
  <div class="cube"></div>
  <div class="cube"></div>
  <div class="cube"></div>
  <div class="cube"></div>
  <div class="cube"></div>
  <div class="cube"></div>
  <div class="cube"></div>
  <div class="cube"></div>
  <div class="cube"></div>
  <div class="cube"></div>
  <div class="cube"></div>
  <div class="cube"></div>
  <div class="cube"></div>
  <div class="cube"></div>
  <div class="cube"></div>
  <div class="cube"></div>
  <div class="cube"></div>
  <div class="cube"></div>
  <div class="cube"></div>
  <div class="cube"></div>
  <div class="cube"></div>
  <div class="cube"></div>
  <div class="cube"></div>
  <div class="cube"></div>
  <div class="cube"></div>
  <div class="cube"></div>
  <div class="cube"></div>
</div>
<div>
</body>
</html>

Nach dem Login kopieren

Das Obige ist der gesamte Inhalt dieses Artikels. Ich hoffe, er gefällt Ihnen allen.