带有纯 jQuery 动画的特殊颜色过渡效果//没有 ui 或其他库 [英] Special color transition effect with pure jQuery animation // no ui or other libary

问题描述

我正在尝试在没有任何外部插件的情况下创建 jQuery 彩色动画.到目前为止，我可以用 jQuery-ui 来做到这一点，但我想用 pure jQuery animate()

来学习这种方式

是否可以在 1.8 上用更少的代码和没有任何外部 jQuery 插件来做到这一点?

这是带有 jQuery 1.7.2 和 ui<的 jsFiddle 示例/p>

jQuery:

var Text = $('h1');var Box = $('.box');文本点击(功能(){Text.animate({'color':'#f00'},600).delay(200).animate({'color':'#ff0'},600).delay(200).animate({'color':'#000'},600);});Box.click(函数(){Box.animate({'background-color':'#f00'},600).delay(200).animate({'background-color':'#ff0'},600).delay(200).animate({'background-color':'#000'},600);});

解决方案

你要求更少的代码，所以这里是 相关代码，我用 Google Closure Compiler 进行了缩小:

(function(h,m){function n(a,b,c){var d=r[b.type]||{};if(null==a)return c||!b.def?null:b.def;a=d.floor?~~a:parseFloat(a);return isNaN(a)?b.def:d.mod?(a+d.mod)%d.mod:0>a?0:d.max6*c?a+6*(ba)*c:1>2*c?b:2>3*c?a+6*(ba)*(2/3-c):a}var w=/^([-+])=s*(d+.?d*)/,v=[{re:/rgba?(s*(d{1,3})s*,s*(d{1,3})s*,s*(d{1,3})s*(?:,s*(d+(?:.d+)?)s*)?)/,parse:function(a){return[a[1],a[2],a[3],a[4]]}},{re:/rgba?(s*(d+(?:.d+)?)\%s*,s*(d+(?:.d+)?)\%s*,s*(d+(?:.d+)?)\%s*(?:,s*(d+(?:.d+)?)s*)?)/,parse:function(a){return[2.55*a[1],2.55*a[2],2.55*a[3],a[4]]}},{re:/#([a-f0-9]{2})([a-f0-9]{2})([a-f0-9]{2})/,parse:function(a){return[parseInt(a[1],16),parseInt(a[2],16),parseInt(a[3],16)]}},{re:/#([a-f0-9])([a-f0-9])([a-f0-9])/,parse:function(a){return[parseInt(a[1]+a[1],16),parseInt(a[2]+a[2],16),parseInt(a[3]+a[3],16)]}},{re:/hsla?(s*(d+(?:.d+)?)s*,s*(d+(?:.d+)?)\%s*,s*(d+(?:.d+)?)\%s*(?:,s*(d+(?:.d+)?)s*)?)/,space:"hsla",parse:function(a){return[a[1],a[2]/100,a[3]/100,a[4]]}}],f=h.Color=function(a,b,c,d){return new h.Color.fn.parse(a,b,c,d)},k={rgba:{props:{red:{idx:0,type:"byte"},green:{idx:1,type:"byte"},blue:{idx:2,type:"byte"}}},hsla:{props:{hue:{idx:0,type:"degrees"},saturation:{idx:1,type:"percent"},lightness:{idx:2,type:"percent"}}}},r={"byte":{floor:!0,max:255},percent:{max:1},degrees:{mod:360,floor:!0}},t=f.support={},u=h("<p>")[0],o,j=h.each;u.style.cssText="background-color:rgba(1,1,1,.5)";t.rgba=-1<u.style.backgroundColor.indexOf("rgba");j(k,function(a,b){b.cache="_"+a;b.props.alpha={idx:3,type:"percent",def:1}});f.fn=h.extend(f.prototype,{parse:function(a,b,c,d){if(a===m)return this._rgba=[null,null,null,null],this;if(a.jquery||a.nodeType)a=h(a).css(b),b=m;var g=this,e=h.type(a),i=this._rgba=[];b!==m&&(a=[a,b,c,d],e="array");if("string"===e)return this.parse(s(a)||o._default);if("array"====e)return j(k.rgba.props,function(d,c){i[c.idx]=n(a[c.idx],c)}),this;if("object"===e)返回一个实例 f?j(k,function(c,d){a[d.cache]&&(g[d.cache]=a[d.cache].slice())}):j(k,function(d,c){var b=c.cache;j(c.props,function(d,e){if(!g[b]&&c.to){if(d==="alpha"||a[d]==null)return;g[b]=c.to(g._rgba)}g[b][e.idx]=n(a[d],e,true)});if(g[b]&&h.inArray(null,g[b].slice(0,3))<0){g[b][3]=1;if(c.from)g._rgba=c.from(g[b])}}),this},is:function(a){var b=f(a),c=!0,d=this;j(k,function(a,e){var i,h=b[e.cache];h&&(i=d[e.cache]||e.to&&e.to(d._rgba)||[],j(e.props,function(a,d){if(null!=h[d.idx])return c=h[d.idx]===i[d.idx]}));return c});return c},_space:function(){var a=[],b=this;j(k,function(c,d){b[d.cache]&&a.push(c)});return a.pop()},transition:function(a,b){var c=f(a)),d=c._space(),g=k[d],e=0===this.alpha()?f("transparent"):this,i=e[g.cache]||g.to(e._rgba),h=i.​​slice(),c=c[g.cache];j(g.props,function(a,d){var g=d.idx,e=i[g],f=c[g],j=r[d.type]||{};null!==f&&(null===e?h[g]=f:(j.mod&&(f-e>j.mod/2?e+=j.mod:e-f>j.mod/2&&(e-=j.mod)),h[g]=n((fe)*b+e,d)))});return this[d](h)},blend:function(a){if(1===this._rgba[3])return this;var b=this._rgba.slice(),c=b.pop(),d=f(a)._rgba;return f(h.map(b,function(a,b){return(1-c)*d[b]+c*a}))},toRgbaString:function(){var a="rgba(",b=h.map(this._rgba,function(a,d){return null==a?2<d?1:0:a});1====b[3]&&(b.pop(),a="rgb(");return a+b.join()+")"},toHslaString:function(){var a="hsla(",b=h.map(this.hsla(),function(a,d){null==a&&(a=2<d?1:0);d&&3>d&;&(a=Math.round(100*a)+"%");return a});1===b[3]&&(b.pop(),a="hsl(");return a+b.join()+")"},toHexString:function(a){var b=this._rgba.slice(),c=b.pop();a&&b.push(~~(255*c));return"#"+h.map(b,function(a){a=(a||0).toString(16);return 1===a.length?"0"+a:a}).join("")},toString:function(){return 0===this._rgba[3]?"transparent":this.toRgbaString()}});f.fn.parse.prototype=f.fn;k.hsla.to=function(a){if(null==a[0]||null==a[1]||null==a[2])return[null,null,null,a[3]];var b=a[0]/255,c=a[1]/255,d=a[2]/255,a=a[3],g=Math.max(b,c,d),e=Math.min(b,c,d),i=ge,h=g+e,f=0.5*h;return[Math.round(e===g?0:b===g?60*(cd)/i+360:c===g?60*(db)/i+120:60*(bc)/i+240)%360,0===f||1===f?f:0.5>=f?i/h:i/(2-h),f,null==a?1:a]};k.hsla.from=function(a){if(null==a[0]||null==a[1]||null==a[2])return[null,null,null,a[3]];var b=a[0]/360,c=a[1],d=a[2],a=a[3],c=0.5>=d?d*(1+c):d+cd*c,d=2*dc;return[Math.round(255*p(d,c,b+1/3)),Math.round(255*p(d,c,b)),Math.round(255*p(d,c,b-1/3)),a]};j(k,function(a,b){var c=b.props,d=b.cache,g=b.to,e=b.from;f.fn[a]=function(a){g&&!this[d]&&(this[d]=g(this._rgba));if(a===m)return this[d].slice();var b,q=h.type(a),k="array"===q||"object"===q?a:arguments,l=this[d].slice();j(c,function(a),d){var b=k["object"===q?a:d.idx];null==b&&(b=l[d.idx]);l[d.idx]=n(b,d)});返回 e?(b=f(e(l)),b[d]=l,b):f(l)};j(c,function(d,b){f.fn[d]||(f.fn[d]=function(c){var e=h.type(c),g="alpha"===d?this._hsla?"hsla":"rgba":a,f=this[g](),j=f[b.idx];if("undefined"===e)return j;"function"===e&&(c=c.call(this,j),e=h.type(c));if(null==c&&b.empty)return this;"string"===e&&(e=w.exec(c))&&(c=j+parseFloat(e[2])*("+"===e[1]?1:-1));f[b.idx]=c;return this[g](f)})})});f.hook=function(a){a=a.split(" ");j(a,function(a,c){h.cssHooks[c]={set:function(a,b){var e,i="";if("string"!==h.type(b)||(e=s(b))){b=f(e||b);if(!t.rgba&&1!==b._rgba[3]){for(e="backgroundColor"===c?a.parentNode:a;(""===i||"transparent"===i)&&e&&e.style;)try{i=h.css(e,"backgroundColor"),e=e.parentNode}catch(j){}b=b.blend(i&&"透明"!==i?i:"_default")}b=b.toRgbaString()}try{a.style[c]=b}catch(k){}}};h.fx.step[c]=function(a){a.colorInit||(a.start=f(a.elem,c),a.end=f(a.end),a.colorInit=!0);h.cssHooks[c].set(a.elem,a.start.transition(a.end,a.pos))}})};f.hook("backgroundColor borderBottomColor borderLeftColor borderRightColor borderTopColor color columnRuleColor outlineColor textDecorationColor textEmphasisColor");h.cssHooks.borderColor={expand:function(a){var b={};j(["Top","Right","Bottom","Left"],function(c,d){b["border"+d+"颜色"]=a});return b}};o=h.Color.names={aqua:"#00ffff",black:"#000000",blue:"#0000ff",fuchsia:"#ff00ff",gray:"#808080",green:"#008000",lime:"#00ff00",maroon:"#800000",navy:"#000080",olive:"#808000",purple:"#800080",red:"#ff0000",silver:"#c0c0c0",teal:"#008080",white:"#ffffff",yellow:"#ffff00",transparent:[null,null,null,0],_default:"#ffffff"}})(jQuery);

它在没有 gzip 或其他压缩的情况下在 UTF8 中大约 7kb，并且允许您像以前使用 jQuery UI 一样完全地为颜色设置动画.这意味着，它允许您在保留相同代码的同时删除 jQuery UI.

小提琴

我还建议您优先考虑您的开发时间.第一次加载 7kb 对任何最终用户来说都不会是一个明显的变化，即使是拨号用户也不会.这就是为什么我认为重构它是在浪费时间.无需花费数小时/数天重新发明轮子.=]

I am trying to create jQuery color animation without any external plugins. So far i could manage to do this with jQuery-ui but i want to learn this way with pure jQuery animate()

Is is possible to do this with less code and without any external jQuery plugins on 1.8 ?

Here is jsFiddle sample with jQuery 1.7.2 and ui

jQuery:

var Text = $('h1');
var Box = $('.box');

Text.click(function() {
    Text.animate({'color':'#f00'},600)
        .delay(200).animate({'color':'#ff0'},600)
        .delay(200).animate({'color':'#000'},600);
});

Box.click(function() {
    Box.animate({'background-color':'#f00'},600)
        .delay(200).animate({'background-color':'#ff0'},600)
        .delay(200).animate({'background-color':'#000'},600);
});

解决方案

You asked for less code, so here is the relevant code which I minified with Google Closure Compiler:

(function(h,m){function n(a,b,c){var d=r[b.type]||{};if(null==a)return c||!b.def?null:b.def;a=d.floor?~~a:parseFloat(a);return isNaN(a)?b.def:d.mod?(a+d.mod)%d.mod:0>a?0:d.max<a?d.max:a}function s(a){var b=f(),c=b._rgba=[],a=a.toLowerCase();j(v,function(d,g){var e,i=g.re.exec(a);e=i&&g.parse(i);i=g.space||"rgba";if(e)return e=b[i](e),b[k[i].cache]=e[k[i].cache],c=b._rgba=e._rgba,!1});return c.length?("0,0,0,0"===c.join()&&h.extend(c,o.transparent),b):o[a]}function p(a,b,c){c=(c+1)%1;return 1>6*c?
a+6*(b-a)*c:1>2*c?b:2>3*c?a+6*(b-a)*(2/3-c):a}var w=/^([-+])=s*(d+.?d*)/,v=[{re:/rgba?(s*(d{1,3})s*,s*(d{1,3})s*,s*(d{1,3})s*(?:,s*(d+(?:.d+)?)s*)?)/,parse:function(a){return[a[1],a[2],a[3],a[4]]}},{re:/rgba?(s*(d+(?:.d+)?)\%s*,s*(d+(?:.d+)?)\%s*,s*(d+(?:.d+)?)\%s*(?:,s*(d+(?:.d+)?)s*)?)/,parse:function(a){return[2.55*a[1],2.55*a[2],2.55*a[3],a[4]]}},{re:/#([a-f0-9]{2})([a-f0-9]{2})([a-f0-9]{2})/,parse:function(a){return[parseInt(a[1],16),parseInt(a[2],16),
parseInt(a[3],16)]}},{re:/#([a-f0-9])([a-f0-9])([a-f0-9])/,parse:function(a){return[parseInt(a[1]+a[1],16),parseInt(a[2]+a[2],16),parseInt(a[3]+a[3],16)]}},{re:/hsla?(s*(d+(?:.d+)?)s*,s*(d+(?:.d+)?)\%s*,s*(d+(?:.d+)?)\%s*(?:,s*(d+(?:.d+)?)s*)?)/,space:"hsla",parse:function(a){return[a[1],a[2]/100,a[3]/100,a[4]]}}],f=h.Color=function(a,b,c,d){return new h.Color.fn.parse(a,b,c,d)},k={rgba:{props:{red:{idx:0,type:"byte"},green:{idx:1,type:"byte"},blue:{idx:2,type:"byte"}}},hsla:{props:{hue:{idx:0,
type:"degrees"},saturation:{idx:1,type:"percent"},lightness:{idx:2,type:"percent"}}}},r={"byte":{floor:!0,max:255},percent:{max:1},degrees:{mod:360,floor:!0}},t=f.support={},u=h("<p>")[0],o,j=h.each;u.style.cssText="background-color:rgba(1,1,1,.5)";t.rgba=-1<u.style.backgroundColor.indexOf("rgba");j(k,function(a,b){b.cache="_"+a;b.props.alpha={idx:3,type:"percent",def:1}});f.fn=h.extend(f.prototype,{parse:function(a,b,c,d){if(a===m)return this._rgba=[null,null,null,null],this;if(a.jquery||a.nodeType)a=
h(a).css(b),b=m;var g=this,e=h.type(a),i=this._rgba=[];b!==m&&(a=[a,b,c,d],e="array");if("string"===e)return this.parse(s(a)||o._default);if("array"===e)return j(k.rgba.props,function(d,c){i[c.idx]=n(a[c.idx],c)}),this;if("object"===e)return a instanceof f?j(k,function(c,d){a[d.cache]&&(g[d.cache]=a[d.cache].slice())}):j(k,function(d,c){var b=c.cache;j(c.props,function(d,e){if(!g[b]&&c.to){if(d==="alpha"||a[d]==null)return;g[b]=c.to(g._rgba)}g[b][e.idx]=n(a[d],e,true)});if(g[b]&&h.inArray(null,g[b].slice(0,
3))<0){g[b][3]=1;if(c.from)g._rgba=c.from(g[b])}}),this},is:function(a){var b=f(a),c=!0,d=this;j(k,function(a,e){var i,h=b[e.cache];h&&(i=d[e.cache]||e.to&&e.to(d._rgba)||[],j(e.props,function(a,d){if(null!=h[d.idx])return c=h[d.idx]===i[d.idx]}));return c});return c},_space:function(){var a=[],b=this;j(k,function(c,d){b[d.cache]&&a.push(c)});return a.pop()},transition:function(a,b){var c=f(a),d=c._space(),g=k[d],e=0===this.alpha()?f("transparent"):this,i=e[g.cache]||g.to(e._rgba),h=i.slice(),c=c[g.cache];
j(g.props,function(a,d){var g=d.idx,e=i[g],f=c[g],j=r[d.type]||{};null!==f&&(null===e?h[g]=f:(j.mod&&(f-e>j.mod/2?e+=j.mod:e-f>j.mod/2&&(e-=j.mod)),h[g]=n((f-e)*b+e,d)))});return this[d](h)},blend:function(a){if(1===this._rgba[3])return this;var b=this._rgba.slice(),c=b.pop(),d=f(a)._rgba;return f(h.map(b,function(a,b){return(1-c)*d[b]+c*a}))},toRgbaString:function(){var a="rgba(",b=h.map(this._rgba,function(a,d){return null==a?2<d?1:0:a});1===b[3]&&(b.pop(),a="rgb(");return a+b.join()+")"},toHslaString:function(){var a=
"hsla(",b=h.map(this.hsla(),function(a,d){null==a&&(a=2<d?1:0);d&&3>d&&(a=Math.round(100*a)+"%");return a});1===b[3]&&(b.pop(),a="hsl(");return a+b.join()+")"},toHexString:function(a){var b=this._rgba.slice(),c=b.pop();a&&b.push(~~(255*c));return"#"+h.map(b,function(a){a=(a||0).toString(16);return 1===a.length?"0"+a:a}).join("")},toString:function(){return 0===this._rgba[3]?"transparent":this.toRgbaString()}});f.fn.parse.prototype=f.fn;k.hsla.to=function(a){if(null==a[0]||null==a[1]||null==a[2])return[null,
null,null,a[3]];var b=a[0]/255,c=a[1]/255,d=a[2]/255,a=a[3],g=Math.max(b,c,d),e=Math.min(b,c,d),i=g-e,h=g+e,f=0.5*h;return[Math.round(e===g?0:b===g?60*(c-d)/i+360:c===g?60*(d-b)/i+120:60*(b-c)/i+240)%360,0===f||1===f?f:0.5>=f?i/h:i/(2-h),f,null==a?1:a]};k.hsla.from=function(a){if(null==a[0]||null==a[1]||null==a[2])return[null,null,null,a[3]];var b=a[0]/360,c=a[1],d=a[2],a=a[3],c=0.5>=d?d*(1+c):d+c-d*c,d=2*d-c;return[Math.round(255*p(d,c,b+1/3)),Math.round(255*p(d,c,b)),Math.round(255*p(d,c,b-1/3)),
a]};j(k,function(a,b){var c=b.props,d=b.cache,g=b.to,e=b.from;f.fn[a]=function(a){g&&!this[d]&&(this[d]=g(this._rgba));if(a===m)return this[d].slice();var b,q=h.type(a),k="array"===q||"object"===q?a:arguments,l=this[d].slice();j(c,function(a,d){var b=k["object"===q?a:d.idx];null==b&&(b=l[d.idx]);l[d.idx]=n(b,d)});return e?(b=f(e(l)),b[d]=l,b):f(l)};j(c,function(d,b){f.fn[d]||(f.fn[d]=function(c){var e=h.type(c),g="alpha"===d?this._hsla?"hsla":"rgba":a,f=this[g](),j=f[b.idx];if("undefined"===e)return j;
"function"===e&&(c=c.call(this,j),e=h.type(c));if(null==c&&b.empty)return this;"string"===e&&(e=w.exec(c))&&(c=j+parseFloat(e[2])*("+"===e[1]?1:-1));f[b.idx]=c;return this[g](f)})})});f.hook=function(a){a=a.split(" ");j(a,function(a,c){h.cssHooks[c]={set:function(a,b){var e,i="";if("string"!==h.type(b)||(e=s(b))){b=f(e||b);if(!t.rgba&&1!==b._rgba[3]){for(e="backgroundColor"===c?a.parentNode:a;(""===i||"transparent"===i)&&e&&e.style;)try{i=h.css(e,"backgroundColor"),e=e.parentNode}catch(j){}b=b.blend(i&&
"transparent"!==i?i:"_default")}b=b.toRgbaString()}try{a.style[c]=b}catch(k){}}};h.fx.step[c]=function(a){a.colorInit||(a.start=f(a.elem,c),a.end=f(a.end),a.colorInit=!0);h.cssHooks[c].set(a.elem,a.start.transition(a.end,a.pos))}})};f.hook("backgroundColor borderBottomColor borderLeftColor borderRightColor borderTopColor color columnRuleColor outlineColor textDecorationColor textEmphasisColor");h.cssHooks.borderColor={expand:function(a){var b={};j(["Top","Right","Bottom","Left"],function(c,d){b["border"+
d+"Color"]=a});return b}};o=h.Color.names={aqua:"#00ffff",black:"#000000",blue:"#0000ff",fuchsia:"#ff00ff",gray:"#808080",green:"#008000",lime:"#00ff00",maroon:"#800000",navy:"#000080",olive:"#808000",purple:"#800080",red:"#ff0000",silver:"#c0c0c0",teal:"#008080",white:"#ffffff",yellow:"#ffff00",transparent:[null,null,null,0],_default:"#ffffff"}})(jQuery);

It is about 7kb in UTF8 without gzip or other compressions, and allows you to animate colors exactly as you were previously doing with jQuery UI. That means, it allows you to remove the jQuery UI while keeping the same code.

Fiddle

I'll also suggest to prioritize your development time more. 7kb on a first load won't be a noticeable change for any end-user, not even dial up ones. That's why I consider refactoring this a waste of time. There's no need to spend hours/days reinventing the wheel. =]

这篇关于带有纯 jQuery 动画的特殊颜色过渡效果//没有 ui 或其他库的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！