我试图在鼠标悬停时使用jQuery为backgroundColor中的更改设置动画.
我已经检查了一些例子,我似乎做对了,它适用于其他属性,如fontSize,但我使用backgroundColor和"无效属性"js错误.我正在使用的元素是div.
$(".usercontent").mouseover(function() {
$(this).animate({ backgroundColor: "olive" }, "slow");
});
有任何想法吗？
颜色插件只有4kb,比UI库便宜得多.当然你会想要使用一个体面的插件版本,而不是一些旧的东西,当转换太快时,它不能处理Safari和崩溃.由于未提供缩小版本,您可能需要测试各种压缩器并制作您自己的最小版本.在这种情况下,YUI获得最佳压缩,只需要2317个字节,因为它太小了 - 这里是:
(function (d) {
d.each(["backgroundColor", "borderBottomColor", "borderLeftColor", "borderRightColor", "borderTopColor", "color", "outlineColor"], function (f, e) {
d.fx.step[e] = function (g) {
if (!g.colorInit) {
g.start = c(g.elem, e);
g.end = b(g.end);
g.colorInit = true
}
g.elem.style[e] = "rgb(" + [Math.max(Math.min(parseInt((g.pos * (g.end[0] - g.start[0])) + g.start[0]), 255), 0), Math.max(Math.min(parseInt((g.pos * (g.end[1] - g.start[1])) + g.start[1]), 255), 0), Math.max(Math.min(parseInt((g.pos * (g.end[2] - g.start[2])) + g.start[2]), 255), 0)].join(",") + ")"
}
});
function b(f) {
var e;
if (f && f.constructor == Array && f.length == 3) {
return f
}
if (e = /rgb\(\s*([0-9]{1,3})\s*,\s*([0-9]{1,3})\s*,\s*([0-9]{1,3})\s*\)/.exec(f)) {
return [parseInt(e[1]), parseInt(e[2]), parseInt(e[3])]
}
if (e = /rgb\(\s*([0-9]+(?:\.[0-9]+)?)\%\s*,\s*([0-9]+(?:\.[0-9]+)?)\%\s*,\s*([0-9]+(?:\.[0-9]+)?)\%\s*\)/.exec(f)) {
return [parseFloat(e[1]) * 2.55, parseFloat(e[2]) * 2.55, parseFloat(e[3]) * 2.55]
}
if (e = /#([a-fA-F0-9]{2})([a-fA-F0-9]{2})([a-fA-F0-9]{2})/.exec(f)) {
return [parseInt(e[1], 16), parseInt(e[2], 16), parseInt(e[3], 16)]
}
if (e = /#([a-fA-F0-9])([a-fA-F0-9])([a-fA-F0-9])/.exec(f)) {
return [parseInt(e[1] + e[1], 16), parseInt(e[2] + e[2], 16), parseInt(e[3] + e[3], 16)]
}
if (e = /rgba\(0, 0, 0, 0\)/.exec(f)) {
return a.transparent
}
return a[d.trim(f).toLowerCase()]
}
function c(g, e) {
var f;
do {
f = d.css(g, e);
if (f != "" && f != "transparent" || d.nodeName(g, "body")) {
break
}
e = "backgroundColor"
} while (g = g.parentNode);
return b(f)
}
var a = {
aqua: [0, 255, 255],
azure: [240, 255, 255],
beige: [245, 245, 220],
black: [0, 0, 0],
blue: [0, 0, 255],
brown: [165, 42, 42],
cyan: [0, 255, 255],
darkblue: [0, 0, 139],
darkcyan: [0, 139, 139],
darkgrey: [169, 169, 169],
darkgreen: [0, 100, 0],
darkkhaki: [189, 183, 107],
darkmagenta: [139, 0, 139],
darkolivegreen: [85, 107, 47],
darkorange: [255, 140, 0],
darkorchid: [153, 50, 204],
darkred: [139, 0, 0],
darksalmon: [233, 150, 122],
darkviolet: [148, 0, 211],
fuchsia: [255, 0, 255],
gold: [255, 215, 0],
green: [0, 128, 0],
indigo: [75, 0, 130],
khaki: [240, 230, 140],
lightblue: [173, 216, 230],
lightcyan: [224, 255, 255],
lightgreen: [144, 238, 144],
lightgrey: [211, 211, 211],
lightpink: [255, 182, 193],
lightyellow: [255, 255, 224],
lime: [0, 255, 0],
magenta: [255, 0, 255],
maroon: [128, 0, 0],
navy: [0, 0, 128],
olive: [128, 128, 0],
orange: [255, 165, 0],
pink: [255, 192, 203],
purple: [128, 0, 128],
violet: [128, 0, 128],
red: [255, 0, 0],
silver: [192, 192, 192],
white: [255, 255, 255],
yellow: [255, 255, 0],
transparent: [255, 255, 255]
}
})(jQuery);
我遇到了同样的问题并通过包含jQuery UI来修复它.这是完整的脚本:
使用CSS3-Transitions做到这一点.支持很棒(所有现代浏览器,甚至是IE).使用Compass和SASS,可以快速完成:
#foo {background:red; @include transition(background 1s)}
#foo:hover {background:yellow}
纯CSS:
#foo {
background:red;
-webkit-transition:background 1s;
-moz-transition:background 1s;
-o-transition:background 1s;
transition:background 1s
}
#foo:hover {background:yellow}
我写了一篇关于这个主题的德文文章:http://www.solife.cc/blog/animation-farben-css3-transition.html
Bitstorm拥有我见过的最好的jquery彩色动画插件.这是对jquery颜色项目的改进.它还支持rgba.
http://www.bitstorm.org/jquery/color-animation/
您可以使用jQuery UI添加此功能.您可以抓住您需要的内容,因此如果您想要为颜色设置动画,您只需要包含以下代码即可.我从最新的jQuery UI获得(目前是1.8.14)
/******************************************************************************/
/****************************** COLOR ANIMATIONS ******************************/
/******************************************************************************/
// override the animation for color styles
$.each(['backgroundColor', 'borderBottomColor', 'borderLeftColor',
'borderRightColor', 'borderTopColor', 'borderColor', 'color', 'outlineColor'],
function(i, attr) {
$.fx.step[attr] = function(fx) {
if (!fx.colorInit) {
fx.start = getColor(fx.elem, attr);
fx.end = getRGB(fx.end);
fx.colorInit = true;
}
fx.elem.style[attr] = 'rgb(' +
Math.max(Math.min(parseInt((fx.pos * (fx.end[0] - fx.start[0])) + fx.start[0], 10), 255), 0) + ',' +
Math.max(Math.min(parseInt((fx.pos * (fx.end[1] - fx.start[1])) + fx.start[1], 10), 255), 0) + ',' +
Math.max(Math.min(parseInt((fx.pos * (fx.end[2] - fx.start[2])) + fx.start[2], 10), 255), 0) + ')';
};
});
// Color Conversion functions from highlightFade
// By Blair Mitchelmore
// http://jquery.offput.ca/highlightFade/
// Parse strings looking for color tuples [255,255,255]
function getRGB(color) {
var result;
// Check if we're already dealing with an array of colors
if ( color && color.constructor == Array && color.length == 3 )
return color;
// Look for rgb(num,num,num)
if (result = /rgb\(\s*([0-9]{1,3})\s*,\s*([0-9]{1,3})\s*,\s*([0-9]{1,3})\s*\)/.exec(color))
return [parseInt(result[1],10), parseInt(result[2],10), parseInt(result[3],10)];
// Look for rgb(num%,num%,num%)
if (result = /rgb\(\s*([0-9]+(?:\.[0-9]+)?)\%\s*,\s*([0-9]+(?:\.[0-9]+)?)\%\s*,\s*([0-9]+(?:\.[0-9]+)?)\%\s*\)/.exec(color))
return [parseFloat(result[1])*2.55, parseFloat(result[2])*2.55, parseFloat(result[3])*2.55];
// Look for #a0b1c2
if (result = /#([a-fA-F0-9]{2})([a-fA-F0-9]{2})([a-fA-F0-9]{2})/.exec(color))
return [parseInt(result[1],16), parseInt(result[2],16), parseInt(result[3],16)];
// Look for #fff
if (result = /#([a-fA-F0-9])([a-fA-F0-9])([a-fA-F0-9])/.exec(color))
return [parseInt(result[1]+result[1],16), parseInt(result[2]+result[2],16), parseInt(result[3]+result[3],16)];
// Look for rgba(0, 0, 0, 0) == transparent in Safari 3
if (result = /rgba\(0, 0, 0, 0\)/.exec(color))
return colors['transparent'];
// Otherwise, we're most likely dealing with a named color
return colors[$.trim(color).toLowerCase()];
}
function getColor(elem, attr) {
var color;
do {
color = $.curCSS(elem, attr);
// Keep going until we find an element that has color, or we hit the body
if ( color != '' && color != 'transparent' || $.nodeName(elem, "body") )
break;
attr = "backgroundColor";
} while ( elem = elem.parentNode );
return getRGB(color);
};
用YUI压缩后只有1.43kb:
$.each(["backgroundColor","borderBottomColor","borderLeftColor","borderRightColor","borderTopColor","borderColor","color","outlineColor"],function(b,a){$.fx.step[a]=function(c){if(!c.colorInit){c.start=getColor(c.elem,a);c.end=getRGB(c.end);c.colorInit=true}c.elem.style[a]="rgb("+Math.max(Math.min(parseInt((c.pos*(c.end[0]-c.start[0]))+c.start[0],10),255),0)+","+Math.max(Math.min(parseInt((c.pos*(c.end[1]-c.start[1]))+c.start[1],10),255),0)+","+Math.max(Math.min(parseInt((c.pos*(c.end[2]-c.start[2]))+c.start[2],10),255),0)+")"}});function getRGB(b){var a;if(b&&b.constructor==Array&&b.length==3){return b}if(a=/rgb\(\s*([0-9]{1,3})\s*,\s*([0-9]{1,3})\s*,\s*([0-9]{1,3})\s*\)/.exec(b)){return[parseInt(a[1],10),parseInt(a[2],10),parseInt(a[3],10)]}if(a=/rgb\(\s*([0-9]+(?:\.[0-9]+)?)\%\s*,\s*([0-9]+(?:\.[0-9]+)?)\%\s*,\s*([0-9]+(?:\.[0-9]+)?)\%\s*\)/.exec(b)){return[parseFloat(a[1])*2.55,parseFloat(a[2])*2.55,parseFloat(a[3])*2.55]}if(a=/#([a-fA-F0-9]{2})([a-fA-F0-9]{2})([a-fA-F0-9]{2})/.exec(b)){return[parseInt(a[1],16),parseInt(a[2],16),parseInt(a[3],16)]}if(a=/#([a-fA-F0-9])([a-fA-F0-9])([a-fA-F0-9])/.exec(b)){return[parseInt(a[1]+a[1],16),parseInt(a[2]+a[2],16),parseInt(a[3]+a[3],16)]}if(a=/rgba\(0, 0, 0, 0\)/.exec(b)){return colors.transparent}return colors[$.trim(b).toLowerCase()]}function getColor(c,a){var b;do{b=$.curCSS(c,a);if(b!=""&&b!="transparent"||$.nodeName(c,"body")){break}a="backgroundColor"}while(c=c.parentNode);return getRGB(b)};
您还可以使用CSS3过渡动画颜色,但它仅受现代浏览器的支持.
a.test {
color: red;
-moz-transition-property: color; /* FF4+ */
-moz-transition-duration: 1s;
-webkit-transition-property: color; /* Saf3.2+, Chrome */
-webkit-transition-duration: 1s;
-o-transition-property: color; /* Opera 10.5+ */
-o-transition-duration: 1s;
-ms-transition-property: color; /* IE10? */
-ms-transition-duration: 1s;
transition-property: color; /* Standard */
transition-duration: 1s;
}
a.test:hover {
color: blue;
}
使用速记属性:
/* shorthand notation for transition properties */
/* transition: [transition-property] [transition-duration] [transition-timing-function] [transition-delay]; */
a.test {
color: red;
-moz-transition: color 1s;
-webkit-transition: color 1s;
-o-transition: color 1s;
-ms-transition: color 1s;
transition: color 1s;
}
a.test {
color: blue;
}
与常规的javascript转换不同,CSS3转换是硬件加速的,因此更加平滑.您可以使用Modernizr来查看浏览器是否支持CSS3转换,如果没有,那么您可以使用jQuery作为后备:
if ( !cssTransitions() ) {
$(document).ready(function(){
$(".test").hover(function () {
$(this).stop().animate({ backgroundColor: "red" },500)
}, function() {
$(this).stop().animate({ backgroundColor: "blue" },500)}
);
});
}
记得在开始新动画之前使用stop()来停止当前动画,否则当你过快地传递元素时,效果会持续闪烁一段时间.
对于发现这一点的人.最好使用jQuery UI版本,因为它适用于所有浏览器.颜色插件与Safari和Chrome有问题.它有时只能起作用.
你可以使用2个div:
您可以在其上放置一个克隆并在将克隆淡入时将原始文件淡出.
完成淡入淡出后,使用新的bg恢复原始文件.
$(function(){
var $mytd = $('#mytd'), $elie = $mytd.clone(), os = $mytd.offset();
// Create clone w other bg and position it on original
$elie.toggleClass("class1, class2").appendTo("body")
.offset({top: os.top, left: os.left}).hide();
$mytd.mouseover(function() {
// Fade original
$mytd.fadeOut(3000, function() {
$mytd.toggleClass("class1, class2").show();
$elie.toggleClass("class1, class2").hide();
});
// Show clone at same time
$elie.fadeIn(3000);
});
});?
.toggleClass()
.offset()
.fadeIn()
.fadeOut()
我使用CSS过渡和JQuery的组合来获得所需的效果; 显然,不支持CSS过渡的浏览器不会生成动画,但它的轻量级选项适用于大多数浏览器并且对我的要求是可接受的降级.
Jquery改变背景颜色:
$('.mylinkholder a').hover(
function () {
$(this).css({ backgroundColor: '#f0f0f0' });
},
function () {
$(this).css({ backgroundColor: '#fff' });
}
);
CSS使用过渡来淡化背景颜色变化
.mylinkholder a
{
transition: background-color .5s ease-in-out;
-moz-transition: background-color .5s ease-in-out;
-webkit-transition: background-color .5s ease-in-out;
-o-transition: background-color .5s ease-in-out;
}
这些天jQuery颜色插件支持以下命名颜色:
aqua:[0,255,255], azure:[240,255,255], beige:[245,245,220], black:[0,0,0], blue:[0,0,255], brown:[165,42,42], cyan:[0,255,255], darkblue:[0,0,139], darkcyan:[0,139,139], darkgrey:[169,169,169], darkgreen:[0,100,0], darkkhaki:[189,183,107], darkmagenta:[139,0,139], darkolivegreen:[85,107,47], darkorange:[255,140,0], darkorchid:[153,50,204], darkred:[139,0,0], darksalmon:[233,150,122], darkviolet:[148,0,211], fuchsia:[255,0,255], gold:[255,215,0], green:[0,128,0], indigo:[75,0,130], khaki:[240,230,140], lightblue:[173,216,230], lightcyan:[224,255,255], lightgreen:[144,238,144], lightgrey:[211,211,211], lightpink:[255,182,193], lightyellow:[255,255,224], lime:[0,255,0], magenta:[255,0,255], maroon:[128,0,0], navy:[0,0,128], olive:[128,128,0], orange:[255,165,0], pink:[255,192,203], purple:[128,0,128], violet:[128,0,128], red:[255,0,0], silver:[192,192,192], white:[255,255,255], yellow:[255,255,0]
我喜欢使用delay()来完成这个,这是一个例子:
jQuery(element).animate({ backgroundColor: "#FCFCD8" },1).delay(1000).animate({ backgroundColor: "#EFEAEA" }, 1500);
这可以由函数调用,"element"是元素类/名称/等.该元素将立即显示#FCFCD8背景,保持一秒,然后淡入#EFEAEA.
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