自定义选择 - 溢出隐藏问题 [英] Custom select - overflow hidden issues
问题描述
我已经设法创建了一个相当不错的自定义选择,它几乎在所有意义上工作(JS需要调整/优化),但我遇到的一个问题,复制一个实际的select元素是当相对父容器设置到 overflow:hidden;
。逻辑告诉我,标准的HTML元素是特殊的,很可能已经设置了覆盖CSS选项的方法,但是我想知道是否有某种形式的黑客,这将允许我复制它与我的自定义选择列表。 p>
EDIT
我要求的解决方案是允许选择显示在父元素 WITH
这里是小提琴: http://jsfiddle.net/8Jfjq/
HTML
< div style =height:50px; width:100%:float:left; background:red; overflow:hidden; >
< div class =customSelectdata-auto-submit =nostyle =float:left; margin-right:20px; z-index:1000;>
< input class =customSelectInputtype =hiddenname =category>< / input>
< p class =customSelectText>< / p>
< ul class =customSelectListdata-open =no>
< li class =customSelectOptiondata-value =1> 1< / li>
< li class =customSelectOptiondata-value =2> 2< / li>
< li class =customSelectOptiondata-value =3> 3< / li>
< li class =customSelectOptiondata-value =4> 4< / li>
< li class =customSelectOptiondata-value =5> 5< / li>
< / ul>
< / div>
< select style =float:left; height:25px;>
< option value =1> 1< / option>
< option value =2> 2< / option>
< option value =3> 3< / option>
< option value =4> 4< / option>
< option value =5> 5< / option>
< / select>
< / div>
jQuery
< pre class =lang-js prettyprint-override>
$(document).ready(function(){
var custSel = $(。customSelect);
custSel.each(function(){
$(this).children(。customSelectList)show();
var custSelInput = $(this).children .customSelectInput),
custSelText = $(this).children(。customSelectText),
custSelList = $(this).children(。customSelectList),
custSelOption = custSelList .children(。customSelectOption),
selectedOpt = custSelList.children([data-selected = \true\]),
findSelected = selectedOpt.length,
(.SelectSelectText).text($(this).text()。 ));
if($(this).width()> largestWidth){
largestWidth = $(this).parent()。
}
});
if(findSelected == 0){
custSelList.children(。customSelectOption:first-child)。attr(data-selected,true);
selectedOpt = custSelList.children(。customSelectOption:first-child);
}
if(custSelList.height()>200){
custSelList.css({
height:200px,
overflow-y:scroll
});
}
custSelInput.val(selectedOpt.attr(data-value));
custSelText.text(selectedOpt.text());
$(this).width(largestWidth);
custSelList.hide();
});
$(document).click(function(e){
if(e.target!=customSelect){
$(。customSelectList)。attr data-open,no);
$(customSelectList)hide();
}
}
$(。customSelectText)。click(function(e){
e.stopPropagation();
if($(this).siblings ).attr(data-open)==yes){
$(this).siblings(。customSelectList)hide();
$(this) .customSelectList)。attr(data-open,no);
} else {
$(customSelectList ).attr(data-open,no);
$(this).hide();
});
$(this).siblings .customSelectList)。show();
$(this).siblings(。customSelectList)。attr(data-open,yes);
$ (.customSelectList)。children([data-selected = \true\])css({
background:RGB(20,100,150),
颜色:RGB(255,255,255)
});
}
});
$(。customSelectList)。hover(
function(){
$(this).children([data-selected = \true\ ])。css({
background:RGB(255,255,255),
color:RGB(0,0,0)
});
$(this).children([data-selected = \true\]hover(
function(){
$(this).css {
background:RGB(20,100,150),
color:RGB(255,255,255)
});
},
function(){
$(this).css({
background:RGB(255,255,255),
color:RGB(0,0,0)
});
}
);
},
function(){
$(this).children([data-selected = \\true\])。css({
background:RGB(20,100,150),
color:RGB(255,255,255)
});
}
);
$(。customSelectOption)。click(function(){
$(this).parent()。siblings(。customSelectText)。 text());
$(this).parent()。siblings(input)。attr(value,$(this).attr(data-value));
$(this).siblings([data-selected = \true\])removeAttr(data-selected);
$(this).attr(data-selected true);
if($(this).parent()。parent(。customSelect)。attr(data-auto-submit)==yes){
$ (this).parent()。parent()。parent(form)。submit();
}
});
});
CSS
< pre class =lang-css prettyprint-override>
* {
color:RGB(0,0,0);
font-family:Arial;
font-size:14px;
list-style:none;
margin:0;
padding:0;
text-decoration:none;
}
body {
padding:5px;
}
select {
border:1px solid RGB(150,150,150);
box-sizing:border-box;
-moz-box-sizing:border-box;
height:25px;
padding:2px;
width:50px;
}
.customSelect {
background:RGB(255,255,255);
float:left;
position:relative;
z-index:10;
}
.customSelectText {
background:RGB(255,255,255);
border:1px solid RGB(150,150,150);
box-sizing:border-box;
-moz-box-sizing:border-box;
cursor:pointer;
height:25px;
line-height:23px;
padding-left:5px;
padding-right:40px;
position:relative;
text-transform:capitalize;
transition:background 400ms;
user-select:none;
-moz-user-select:none;
-ms-user-select:none;
-webkit-user-select:none;
}
.customSelect:hover .customSelectText {
background:RGBA(200,230,240,0.4);
box-shadow:inset 0px -12px 2px RGBA(120,200,250,0.2);
}
.customSelectText:after {
border-left:5px solid transparent;
border-right:5px solid transparent;
border-top:5px solid RGB(0,0,0);
content:;
height:0;
position:absolute;
right:5px;
top:10px;
width:0;
}
.customSelectList {
background:RGB(255,255,255);
border-bottom:1px solid RGB(150,150,150);
border-left:1px solid RGB(150,150,150);
border-right:1px solid RGB(150,150,150);
box-sizing:border-box;
-moz-box-sizing:border-box;
display:none;
overflow:hidden;
position:absolute;
width:100%;
}
.customSelectOption {
box-sizing:border-box;
-moz-box-sizing:border-box;
cursor:default;
float:left;
font-size:12px;
height:20px;
line-height:20px;
padding-left:2px;
text-transformation:capitalize;
width:100%;
}
.customSelectOption:hover {
background:RGB(20,100,150);
color:RGB(255,255,255);
}
c $ c>位置从相对
到 absolute
允许在外部看到自定义选择该容器用 overflow:hidden;
属性设置它。但是,这需要您将每个选择的坐标设置为您想要的位置。最好的解决方案是尽可能删除 overflow:hidden;
http://jsfiddle.net/lharby/8Jfjq/2
strong>旧CSS
.customSelect {
background:RGB(255,255,255)
float:left;
position:relative;
z-index:10;
}
新建CSS
.customSelect {
background:RGB(255,255,255)
position:absolute;
top:10px;
left:10px;
z-index:10;
}
I have managed to create a pretty good custom select, it works in almost every sense (JS needs tweaking/optimizing) but one issue I have come across in terms of replicating an actual select element is when the relative parent container is set to overflow: hidden;
. Logic tells me that standard HTML elements are special and have most likely been set up with ways to override CSS options, however I was wondering if there was some form of hack which would allow for me to replicate it with my custom select list.
EDIT The solution I require is allowing the select to show outside the parent element WITH overflow hidden set on the parent element.
Here is the fiddle: http://jsfiddle.net/8Jfjq/
HTML
<div style="height: 50px; width: 100%: float: left; background: red; overflow: hidden;">
<div class="customSelect" data-auto-submit="no" style="float: left; margin-right: 20px; z-index: 1000;">
<input class="customSelectInput" type="hidden" name="category"></input>
<p class="customSelectText"></p>
<ul class="customSelectList" data-open="no">
<li class="customSelectOption" data-value="1">1</li>
<li class="customSelectOption" data-value="2">2</li>
<li class="customSelectOption" data-value="3">3</li>
<li class="customSelectOption" data-value="4">4</li>
<li class="customSelectOption" data-value="5">5</li>
</ul>
</div>
<select style="float: left; height: 25px;">
<option value="1">1</option>
<option value="2">2</option>
<option value="3">3</option>
<option value="4">4</option>
<option value="5">5</option>
</select>
</div>
jQuery
$(document).ready(function () {
var custSel = $(".customSelect");
custSel.each(function () {
$(this).children(".customSelectList").show();
var custSelInput = $(this).children(".customSelectInput"),
custSelText = $(this).children(".customSelectText"),
custSelList = $(this).children(".customSelectList"),
custSelOption = custSelList.children(".customSelectOption"),
selectedOpt = custSelList.children("[data-selected=\"true\"]"),
findSelected = selectedOpt.length,
biggestWidth = 0;
custSelOption.each(function () {
$(this).parent().siblings(".customSelectText").text($(this).text());
if ($(this).width() > biggestWidth) {
biggestWidth = $(this).parent().parent().width();
}
});
if (findSelected == 0) {
custSelList.children(".customSelectOption:first-child").attr("data-selected", "true");
selectedOpt = custSelList.children(".customSelectOption:first-child");
}
if (custSelList.height() > "200") {
custSelList.css({
height: "200px",
"overflow-y": "scroll"
});
}
custSelInput.val(selectedOpt.attr("data-value"));
custSelText.text(selectedOpt.text());
$(this).width(biggestWidth);
custSelList.hide();
});
$(document).click(function (e) {
if (e.target != "customSelect") {
$(".customSelectList").attr("data-open", "no");
$(".customSelectList").hide();
}
});
$(".customSelectText").click(function (e) {
e.stopPropagation();
if ($(this).siblings(".customSelectList").attr("data-open") == "yes") {
$(this).siblings(".customSelectList").hide();
$(this).siblings(".customSelectList").attr("data-open", "no");
} else {
$(".customSelectList").each(function () {
$(this).attr("data-open", "no");
$(this).hide();
});
$(this).siblings(".customSelectList").show();
$(this).siblings(".customSelectList").attr("data-open", "yes");
$(this).siblings(".customSelectList").children("[data-selected=\"true\"]").css({
background: "RGB(20, 100, 150)",
color: "RGB(255, 255, 255)"
});
}
});
$(".customSelectList").hover(
function () {
$(this).children("[data-selected=\"true\"]").css({
background: "RGB(255, 255, 255)",
color: "RGB(0, 0, 0)"
});
$(this).children("[data-selected=\"true\"]").hover(
function () {
$(this).css({
background: "RGB(20, 100, 150)",
color: "RGB(255, 255, 255)"
});
},
function () {
$(this).css({
background: "RGB(255, 255, 255)",
color: "RGB(0, 0, 0)"
});
}
);
},
function () {
$(this).children("[data-selected=\"true\"]").css({
background: "RGB(20, 100, 150)",
color: "RGB(255, 255, 255)"
});
}
);
$(".customSelectOption").click(function () {
$(this).parent().siblings(".customSelectText").text($(this).text());
$(this).parent().siblings("input").attr("value", $(this).attr("data-value"));
$(this).siblings("[data-selected=\"true\"]").removeAttr("data-selected");
$(this).attr("data-selected", "true");
if ($(this).parent().parent(".customSelect").attr("data-auto-submit") == "yes") {
$(this).parent().parent().parent("form").submit();
}
});
});
CSS
* {
color: RGB(0, 0, 0);
font-family: Arial;
font-size: 14px;
list-style: none;
margin: 0;
padding: 0;
text-decoration: none;
}
body {
padding: 5px;
}
select {
border: 1px solid RGB(150, 150, 150);
box-sizing: border-box;
-moz-box-sizing: border-box;
height: 25px;
padding: 2px;
width: 50px;
}
.customSelect {
background: RGB(255, 255, 255);
float: left;
position: relative;
z-index: 10;
}
.customSelectText {
background: RGB(255, 255, 255);
border: 1px solid RGB(150, 150, 150);
box-sizing: border-box;
-moz-box-sizing: border-box;
cursor: pointer;
height: 25px;
line-height: 23px;
padding-left: 5px;
padding-right: 40px;
position: relative;
text-transform: capitalize;
transition: background 400ms;
user-select: none;
-moz-user-select: none;
-ms-user-select: none;
-webkit-user-select: none;
}
.customSelect:hover .customSelectText {
background: RGBA(200, 230, 240, 0.4);
box-shadow: inset 0px -12px 2px RGBA(120, 200, 250, 0.2);
}
.customSelectText:after {
border-left: 5px solid transparent;
border-right: 5px solid transparent;
border-top: 5px solid RGB(0, 0, 0);
content:"";
height: 0;
position: absolute;
right: 5px;
top: 10px;
width: 0;
}
.customSelectList {
background: RGB(255, 255, 255);
border-bottom: 1px solid RGB(150, 150, 150);
border-left: 1px solid RGB(150, 150, 150);
border-right: 1px solid RGB(150, 150, 150);
box-sizing: border-box;
-moz-box-sizing: border-box;
display: none;
overflow: hidden;
position: absolute;
width: 100%;
}
.customSelectOption {
box-sizing: border-box;
-moz-box-sizing: border-box;
cursor: default;
float: left;
font-size: 12px;
height: 20px;
line-height: 20px;
padding-left: 2px;
text-transform: capitalize;
width: 100%;
}
.customSelectOption:hover {
background: RGB(20, 100, 150);
color: RGB(255, 255, 255);
}
Changing the value of position
from relative
to absolute
allows the custom select to be seen outside the container with the overflow: hidden;
attribute set to it. However, this requires you to set the co-ordinates of each individual select to where you want it to be. The best solution may be to remove overflow: hidden;
if possible.
http://jsfiddle.net/lharby/8Jfjq/2
Old CSS
.customSelect {
background: RGB(255, 255, 255);
float: left;
position: relative;
z-index: 10;
}
New CSS
.customSelect {
background: RGB(255, 255, 255);
position: absolute;
top:10px;
left:10px;
z-index: 10;
}
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