純javascript作成カレンダーコントロール

11842 ワード

以前はカレンダーのコントロールを使うのはすべて直接ネット上から1セットのソースコードをダウンロードして使用して、心の中はずっと梗があって、自分でカレンダーのコントロールを書きたいと思って、最近ちょうど興味が来て、時間の上で許可して、そこで自分で1つを模索して書いて、機能はまだ完備して、インタフェースは間に合いました.最も言う価値のある点は、inputコントロールの内部の右側にボタンを表示させることです.私は直接inputに背景を付けて、inputの枠を外して実現しました.
これは初版で、これから純javascript版を作るつもりで、これからJQueryでセットを作るつもりです.






    


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"); //         
var month_small = new Array("4","6","9","11"); //          

//    array       obj   ，     true，      false
function array_contain(array, obj){
  for (var i = 0; i < array.length; i++){
    if (array[i] == obj)
      return true;
  }
  return false;
}

//    year     ，      true，    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("        /  ");
    return false;
  }
  else{
    if(year%1 != 0 || month%1 != 0){
      alert("        /  ");
      return false;
    }
    else{
      year = parseInt(year);
      if(year < 1960 || year > 2050){
        alert("   1960~2050     ！");
        return false;
      }
      else if(month < 1 || month >12){
        alert("        ！");
        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?obj.currentStyle[attribute]:document.defaultView.getComputedStyle(obj,false)[attribute];
}


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