使用 jQuery 设置复选框样式

Question

我需要通过 jquery 对一些复选框进行样式化，但我不想使用插件。我只需要一个简单的 jQuery 代码。

我想使用一个带有 css 样式的简单列表。

<ul id="list">
 <li class="selected"><a id="1" href="#">1</a></li>
 <li><a id="2" href="#">2</a></li>
 <li><a id="3" href="#">3</a></li>
</ul>

同时我在代码中加入了被 css 隐藏的输入复选框：

<input type="checkbox" id="1" name="rivista_numero" value="1" checked />    
<input type="checkbox" id="2" name="rivista_numero" value="2" />
<input type="checkbox" id="3" name="rivista_numero" value="3" />

如果我点击“链接”，则使用 jquery，父 li 元素将收到“选定”类，并且具有相同 ID 的复选框将被选中。

您认为这可能是一个好的解决方案吗？有没有可能用 jQuery 实现这个结果？

Answer 1

无需 javascript，只需 CSS http://jsfiddle.net/jphellemons/XvZY9/

HTML：

<input type="checkbox" id="c1" name="cc" />
<label for="c1"><span></span>Check Box 1</label>
<br/>
<input type="checkbox" id="c2" name="cc" />
<label for="c2"><span></span>Check Box 2</label>

CSS：

input[type="checkbox"] {
    display:none;
}
input[type="checkbox"] + label {
    color:#000;
    font-family:Arial, sans-serif;
    font-size:14px;
}
input[type="checkbox"] + label span {
    display:inline-block;
    width:19px;
    height:19px;
    margin:-1px 4px 0 0;
    vertical-align:middle;
    background:url(http://webdesigntutsplus.s3.amazonaws.com/tuts/391_checkboxes/check_radio_sheet.png) left top no-repeat;
    cursor:pointer;
}
input[type="checkbox"]:checked + label span {
    background:url(http://webdesigntutsplus.s3.amazonaws.com/tuts/391_checkboxes/check_radio_sheet.png) -19px top no-repeat;
}

对于单选按钮 http://jsfiddle.net/jphellemons/XvZY9/1/

来源：http://webdesigntutsplus.s3.amazonaws.com/tuts/391_checkboxes/demo.html

Answer 2

你可以使用这个插件，

var checkboxHeight = "25";
var radioHeight = "25";
var selectWidth = "190";


/* No need to change anything after this */


document.write('<style type="text/css">input.styled { display: none; } select.styled { position: relative; width: ' + selectWidth + 'px; opacity: 0; filter: alpha(opacity=0); z-index: 5; } .disabled { opacity: 0.5; filter: alpha(opacity=50); }</style>');

var Custom = {
    init: function() {
        var inputs = document.getElementsByTagName("input"), span = Array(), textnode, option, active;
        for(a = 0; a < inputs.length; a++) {
            if((inputs[a].type == "checkbox" || inputs[a].type == "radio") && inputs[a].className == "styled") {
                span[a] = document.createElement("span");
                span[a].className = inputs[a].type;

                if(inputs[a].checked == true) {
                    if(inputs[a].type == "checkbox") {
                        position = "0 -" + (checkboxHeight*2) + "px";
                        span[a].style.backgroundPosition = position;
                    } else {
                        position = "0 -" + (radioHeight*2) + "px";
                        span[a].style.backgroundPosition = position;
                    }
                }
                inputs[a].parentNode.insertBefore(span[a], inputs[a]);
                inputs[a].onchange = Custom.clear;
                if(!inputs[a].getAttribute("disabled")) {
                    span[a].onmousedown = Custom.pushed;
                    span[a].onmouseup = Custom.check;
                } else {
                    span[a].className = span[a].className += " disabled";
                }
            }
        }
        inputs = document.getElementsByTagName("select");
        for(a = 0; a < inputs.length; a++) {
            if(inputs[a].className == "styled") {
                option = inputs[a].getElementsByTagName("option");
                active = option[0].childNodes[0].nodeValue;
                textnode = document.createTextNode(active);
                for(b = 0; b < option.length; b++) {
                    if(option[b].selected == true) {
                        textnode = document.createTextNode(option[b].childNodes[0].nodeValue);
                    }
                }
                span[a] = document.createElement("span");
                span[a].className = "select";
                span[a].id = "select" + inputs[a].name;
                span[a].appendChild(textnode);
                inputs[a].parentNode.insertBefore(span[a], inputs[a]);
                if(!inputs[a].getAttribute("disabled")) {
                    inputs[a].onchange = Custom.choose;
                } else {
                    inputs[a].previousSibling.className = inputs[a].previousSibling.className += " disabled";
                }
            }
        }
        document.onmouseup = Custom.clear;
    },
    pushed: function() {
        element = this.nextSibling;
        if(element.checked == true && element.type == "checkbox") {
            this.style.backgroundPosition = "0 -" + checkboxHeight*3 + "px";
        } else if(element.checked == true && element.type == "radio") {
            this.style.backgroundPosition = "0 -" + radioHeight*3 + "px";
        } else if(element.checked != true && element.type == "checkbox") {
            this.style.backgroundPosition = "0 -" + checkboxHeight + "px";
        } else {
            this.style.backgroundPosition = "0 -" + radioHeight + "px";
        }
    },
    check: function() {
        element = this.nextSibling;
        if(element.checked == true && element.type == "checkbox") {
            this.style.backgroundPosition = "0 0";
            element.checked = false;
        } else {
            if(element.type == "checkbox") {
                this.style.backgroundPosition = "0 -" + checkboxHeight*2 + "px";
            } else {
                this.style.backgroundPosition = "0 -" + radioHeight*2 + "px";
                group = this.nextSibling.name;
                inputs = document.getElementsByTagName("input");
                for(a = 0; a < inputs.length; a++) {
                    if(inputs[a].name == group && inputs[a] != this.nextSibling) {
                        inputs[a].previousSibling.style.backgroundPosition = "0 0";
                    }
                }
            }
            element.checked = true;
        }
    },
    clear: function() {
        inputs = document.getElementsByTagName("input");
        for(var b = 0; b < inputs.length; b++) {
            if(inputs[b].type == "checkbox" && inputs[b].checked == true && inputs[b].className == "styled") {
                inputs[b].previousSibling.style.backgroundPosition = "0 -" + checkboxHeight*2 + "px";
            } else if(inputs[b].type == "checkbox" && inputs[b].className == "styled") {
                inputs[b].previousSibling.style.backgroundPosition = "0 0";
            } else if(inputs[b].type == "radio" && inputs[b].checked == true && inputs[b].className == "styled") {
                inputs[b].previousSibling.style.backgroundPosition = "0 -" + radioHeight*2 + "px";
            } else if(inputs[b].type == "radio" && inputs[b].className == "styled") {
                inputs[b].previousSibling.style.backgroundPosition = "0 0";
            }
        }
    },
    choose: function() {
        option = this.getElementsByTagName("option");
        for(d = 0; d < option.length; d++) {
            if(option[d].selected == true) {
                document.getElementById("select" + this.name).childNodes[0].nodeValue = option[d].childNodes[0].nodeValue;
            }
        }
    }
}
window.onload = Custom.init;

来自http://ryanfait.com/resources/custom-checkboxes-and-radio-buttons/

演示在这里http://ryanfait.com/resources/custom-checkboxes-and-radio-buttons/example/

Answer 3

我能想到的最简单的方法：

var setupCheckboxes = function() {
    // Checkbox Styling
    $('input[type=checkbox]').each(function() {
        var $this = $(this);
        $this.addClass('checkbox');
        $('<span class="checkbox"></span>').insertAfter($this);
        if ($this.is(':checked')) {
            $this.next('span.checkbox').addClass('on');
        };
        $this.fadeTo(0,0);
        $this.change(function(){
            $this.next('span.checkbox').toggleClass('on');
        });
    });
};
setupCheckboxes();

然后在css中

.checkbox {
    position: relative;
    z-index: 10;
}

span.checkbox {
    z-index: 5;
    display: inline-block;
    width: 15px;
    height: 15px;
    background: #fff;
    border: 1px solid #000;
    margin: 1px 0 0 -14px;
    top: 3px;
    float: left;
    &.on {
        background: $blue;
    }
}

Answer 4

HTML 复选框的样式不能太多，因此最好自己制作 ;)
我为自己做了一个，它不使用任何图像，只使用纯 CSS。因此，它具有可扩展性和可定制性。

获取复选框$('#id_of_my_custom_checkbox').val()的值 -> true/false

这是工作小提琴：https://jsfiddle.net/JerryGoyal/xr62yara/8/

HTML：

<div>

            <div id='mycheckbox' class='custom-checkbox'>
                <div class='custom-tick'></div>
            </div>

            <span>I agree</span>

        </div>

CSS

.custom-checkbox{
    border: solid 2px orange;
    height: 15px;
    width: 15px;
    display: inline-block;
    cursor: pointer;
    -webkit-user-select: none;
-khtml-user-select: none;
-moz-user-select: none;
-o-user-select: none;
user-select: none;
  }
.custom-tick{
    border: inherit;
    display: inherit;
    cursor: inherit;
    visibility: hidden;
    height: 8px;
    width: 5px;
    transform: rotate(45deg);
    border-left: 0;
    border-top: 0;
    border-width: 2px;
    margin: 0px 0px 3px 4px;
}

JS：

$(document).ready(function () {
    $('.custom-checkbox').click(function (e) {
        toggleCustomCheckbox(e.target);
    })
});

function toggleCustomCheckbox(el) {
    var tickEl = $(el).find('.custom-tick').addBack('.custom-tick');
    if (tickEl.css('visibility') === 'hidden') {
        tickEl.css('visibility', 'visible')
        $('.custom-checkbox').val(true)
        alert('you ticked me')
    } else {
        tickEl.css('visibility', 'hidden')
        $('.custom-checkbox').val(false)
        alert('you un-ticked me')
    }

}
function setCustomCheckbox(checkboxid, val) {
    var tickEl = $(checkboxid).find('.custom-tick').addBack('.custom-tick');
    if (val && val === true) {
        tickEl.css('visibility', 'visible')
        $('.custom-checkbox').val(true)
    }
    else {
        tickEl.css('visibility', 'hidden')
        $('.custom-checkbox').val(false)
    }
}