在shift + click(javascript)上更改div背景颜色?

时间:2013-08-04 18:28:19

标签: javascript html onclick click shift

我已经有onclick事件用于在鼠标点击时更改div的边框颜色。

我希望能够在shift +点击时单独更改背景颜色,而无需更改边框颜色。

如何实现这一目标?

修改

多次点击和shift +点击的当前代码:

<script> 
var linkClick = 1; 
  function update_x(obj){ 
  if (linkClick == 1){obj.style.border = 'solid 1px #eeeeee';};
  if (linkClick == 2){obj.style.border = 'solid 1px red'};
  if (linkClick == 3){obj.style.border = 'solid 1px rgba(50, 255, 50, 1)'};
  if (linkClick == 4){obj.style.border = 'solid 1px rgba(70, 180, 255, 1)'};
  if (linkClick == 5){obj.style.border = 'solid 1px yellow'};
  if (linkClick >5 ) {obj.style.border = 'solid 1px #555555'; linkClick=0};
  linkClick++; 
}
</script>
<script>
function changeDivColor (event) {
    event = event || window.event;
    var myDiv = document.getElementById("b14")
    if (event.shiftKey == true) {
        myDiv.style.backgroundColor = "blue";  
    }
}
window.onload = function () {
    document.getElementById("b14").onclick = function (event) {
        changeDivColor (event);
        update_x(this);
    }
}
</script>

edit2 - 由Jeffman解决

3 个答案:

答案 0 :(得分:1)

onclick中,请务必参考event,例如如果您使用的是属性:

<div onclick="clickHandler(event);" ... >

或者如果您稍后再分配:

divElement.onclick = function(event) {
    event = event || window.event; // Support for older IE
    // ...
};

或者如果你真的使用addEventListener并且只是说onclick作为一种速记:

divelement.addEventListener("click", function(event) {
    // ...
}, false);

然后您可以参考event.shiftKey标志来判断Shift是否已关闭。

Live Example | Live Source

更多the spec

答案 1 :(得分:1)

最新代码。看到它在这里工作:http://jsfiddle.net/jeffman/Y3QET/

var linkClick = 1; 
function update_x(obj) { 
    if (linkClick == 1){obj.style.border = 'solid 1px #eeeeee';};
    if (linkClick == 2){obj.style.border = 'solid 1px red'};
    if (linkClick == 3){obj.style.border = 'solid 1px rgba(50, 255, 50, 1)'};
    if (linkClick == 4){obj.style.border = 'solid 1px rgba(70, 180, 255, 1)'};
    if (linkClick == 5){obj.style.border = 'solid 1px yellow'};
    if (linkClick >5 ) {obj.style.border = 'solid 1px #555555'; linkClick=0};
    linkClick++; 
}

function changeDivColor (el, event) {
    if (event.shiftKey == true) {
        el.style.backgroundColor = "blue";  
    }
}
window.onload = function () {
    var i = 1, len = 5; // len is the number of elements using the b1 id pattern
    for (i; i <= len; i++) {
        document.getElementById("b" + i).onclick = function (event) {
            event = event || window.event;
            changeDivColor (this, event);
            update_x(this); // or whatever your other function is.
        }
    }
}

答案 2 :(得分:0)

Javascript.net解释了如何在http://www.javascripter.net/faq/ctrl_alt.htm

中执行所需操作