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January 18, 2020 07:01
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Кастомный select на javascript html css
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// html | |
<div class="custom-select" style="width:200px;"> | |
<select> | |
<option value="0">Select car:</option> | |
<option value="1">Audi</option> | |
<option value="2">BMW</option> | |
<option value="3">Citroen</option> | |
<option value="4">Ford</option> | |
<option value="5">Honda</option> | |
<option value="6">Jaguar</option> | |
<option value="7">Land Rover</option> | |
<option value="8">Mercedes</option> | |
<option value="9">Mini</option> | |
<option value="10">Nissan</option> | |
<option value="11">Toyota</option> | |
<option value="12">Volvo</option> | |
</select> | |
</div> | |
//css | |
/* The container must be positioned relative: */ | |
.custom-select { | |
position: relative; | |
font-family: Arial; | |
} | |
.custom-select select { | |
display: none; /*hide original SELECT element: */ | |
} | |
.select-selected { | |
background-color: DodgerBlue; | |
} | |
/* Style the arrow inside the select element: */ | |
.select-selected:after { | |
position: absolute; | |
content: ""; | |
top: 14px; | |
right: 10px; | |
width: 0; | |
height: 0; | |
border: 6px solid transparent; | |
border-color: #fff transparent transparent transparent; | |
} | |
/* Point the arrow upwards when the select box is open (active): */ | |
.select-selected.select-arrow-active:after { | |
border-color: transparent transparent #fff transparent; | |
top: 7px; | |
} | |
/* style the items (options), including the selected item: */ | |
.select-items div,.select-selected { | |
color: #ffffff; | |
padding: 8px 16px; | |
border: 1px solid transparent; | |
border-color: transparent transparent rgba(0, 0, 0, 0.1) transparent; | |
cursor: pointer; | |
} | |
/* Style items (options): */ | |
.select-items { | |
position: absolute; | |
background-color: DodgerBlue; | |
top: 100%; | |
left: 0; | |
right: 0; | |
z-index: 99; | |
} | |
/* Hide the items when the select box is closed: */ | |
.select-hide { | |
display: none; | |
} | |
.select-items div:hover, .same-as-selected { | |
background-color: rgba(0, 0, 0, 0.1); | |
} | |
//javascript | |
var x, i, j, selElmnt, a, b, c; | |
/* Look for any elements with the class "custom-select": */ | |
x = document.getElementsByClassName("custom-select"); | |
for (i = 0; i < x.length; i++) { | |
selElmnt = x[i].getElementsByTagName("select")[0]; | |
/* For each element, create a new DIV that will act as the selected item: */ | |
a = document.createElement("DIV"); | |
a.setAttribute("class", "select-selected"); | |
a.innerHTML = selElmnt.options[selElmnt.selectedIndex].innerHTML; | |
x[i].appendChild(a); | |
/* For each element, create a new DIV that will contain the option list: */ | |
b = document.createElement("DIV"); | |
b.setAttribute("class", "select-items select-hide"); | |
for (j = 1; j < selElmnt.length; j++) { | |
/* For each option in the original select element, | |
create a new DIV that will act as an option item: */ | |
c = document.createElement("DIV"); | |
c.innerHTML = selElmnt.options[j].innerHTML; | |
c.addEventListener("click", function(e) { | |
/* When an item is clicked, update the original select box, | |
and the selected item: */ | |
var y, i, k, s, h; | |
s = this.parentNode.parentNode.getElementsByTagName("select")[0]; | |
h = this.parentNode.previousSibling; | |
for (i = 0; i < s.length; i++) { | |
if (s.options[i].innerHTML == this.innerHTML) { | |
s.selectedIndex = i; | |
h.innerHTML = this.innerHTML; | |
y = this.parentNode.getElementsByClassName("same-as-selected"); | |
for (k = 0; k < y.length; k++) { | |
y[k].removeAttribute("class"); | |
} | |
this.setAttribute("class", "same-as-selected"); | |
break; | |
} | |
} | |
h.click(); | |
}); | |
b.appendChild(c); | |
} | |
x[i].appendChild(b); | |
a.addEventListener("click", function(e) { | |
/* When the select box is clicked, close any other select boxes, | |
and open/close the current select box: */ | |
e.stopPropagation(); | |
closeAllSelect(this); | |
this.nextSibling.classList.toggle("select-hide"); | |
this.classList.toggle("select-arrow-active"); | |
}); | |
} | |
function closeAllSelect(elmnt) { | |
/* A function that will close all select boxes in the document, | |
except the current select box: */ | |
var x, y, i, arrNo = []; | |
x = document.getElementsByClassName("select-items"); | |
y = document.getElementsByClassName("select-selected"); | |
for (i = 0; i < y.length; i++) { | |
if (elmnt == y[i]) { | |
arrNo.push(i) | |
} else { | |
y[i].classList.remove("select-arrow-active"); | |
} | |
} | |
for (i = 0; i < x.length; i++) { | |
if (arrNo.indexOf(i)) { | |
x[i].classList.add("select-hide"); | |
} | |
} | |
} | |
/* If the user clicks anywhere outside the select box, | |
then close all select boxes: */ | |
document.addEventListener("click", closeAllSelect); |
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