分享一个鼠标点击一下,在鼠标上方显示一个爱心

每次点击改变颜色,并有慢慢向上消失的效果。

演示就在本站,点击即可。

源码如下:

<script>
(function(window, document, undefined) {
	var hearts = [];
	window.requestAnimationFrame = (function() {
		return window.requestAnimationFrame ||
		window.webkitRequestAnimationFrame ||
		window.mozRequestAnimationFrame ||
		window.oRequestAnimationFrame ||
		window.msRequestAnimationFrame ||
		function(callback) {
			setTimeout(callback, 1000 / 60);
		}
	})();
	init();

	function init() {
		css(
			".heart{width: 10px;height: 10px;position: fixed;background: #f00;transform: rotate(45deg);
			-webkit-transform: rotate(45deg);-moz-transform: rotate(45deg);}.heart:after,.heart:before
			{content: '';width: inherit;height: inherit;background: inherit;border-radius: 50%;-webkit-border-radius: 
			50%;-moz-border-radius: 50%;position: absolute;}.heart:after{top: -5px;}.heart:before{left: -5px;}"
		);
		attachEvent();
		gameloop();
	}

	function gameloop() {
		for (var i = 0; i < hearts.length; i++) {
			if (hearts[i].alpha <= 0) {
				document.body.removeChild(hearts[i].el);
				hearts.splice(i, 1);
				continue;
			}
			hearts[i].y--;
			hearts[i].scale += 0.004;
			hearts[i].alpha -= 0.013;
			hearts[i].el.style.cssText = "left:" + hearts[i].x + "px;top:" + hearts[i].y + "px;opacity:" + hearts[i].alpha +
				";transform:scale(" + hearts[i].scale + "," + hearts[i].scale + ") rotate(45deg);background:" + hearts[i].color;
		}
		requestAnimationFrame(gameloop);
	}

	function attachEvent() {
		var old = typeof window.onclick === "function" && window.onclick;
		window.onclick = function(event) {
			old && old();
			createHeart(event);
		}
	}

	function createHeart(event) {
		var d = document.createElement("div");
		d.className = "heart";
		hearts.push({
			el: d,
			x: event.clientX - 5,
			y: event.clientY - 5,
			scale: 1,
			alpha: 1,
			color: randomColor()
		});
		document.body.appendChild(d);
	}

	function css(css) {
		var style = document.createElement("style");
		style.type = "text/css";
		try {
			style.appendChild(document.createTextNode(css));
		} catch (ex) {
			style.styleSheet.cssText = css;
		}
		document.getElementsByTagName('head')[0].appendChild(style);
	}

	function randomColor() {
		return "rgb(" + (~~(Math.random() * 255)) + "," + (~~(Math.random() * 255)) + "," + (~~(Math.random() * 255)) +
			")";
	}
})(window, document);
</script>

如何在wordpress网站上应用?

JavaScript 代码插入页眉和页脚可在整个站点范围生效 ,把代码添加WordPress主题的header.php(页眉)或footer.php(页脚)文件中即可。但是在更新和更改主题时,这些更改会被覆盖 。

#本文源码来源于网络


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