在评论区输入评论的时候会有一阵带感的礼花和震动特效，很是炫酷有趣，这一次的wordpress美化教程就和大家分享一下这是如何实现的吧
在一些站长的网站上逛的时候发现了这样一个有趣的特效，就是在评论区输入评论的时候会有一阵带感的礼花和震动特效，很是炫酷有趣，这一次的wordpress美化教程就和大家分享一下这是如何实现的吧。
- 参考链接：详情
效果如图：
如何使用？
将以下代码添加至主题根目录下的 footer.php 的 </body> 标签前即可。
<!--评论框礼花特效-->
<script type="text/javascript">
(function webpackUniversalModuleDefinition(root, factory) {
if (typeof exports === 'object' && typeof module === 'object') module.exports = factory();
else if (typeof define === 'function' && define.amd) define([], factory);
else if (typeof exports === 'object') exports["POWERMODE"] = factory();
else root["POWERMODE"] = factory()
})(this,function() {
return (function(modules) {
var installedModules = {};
function __webpack_require__(moduleId) {
if (installedModules[moduleId]) return installedModules[moduleId].exports;
var module = installedModules[moduleId] = {
exports: {},
id: moduleId,
loaded: false
};
modules[moduleId].call(module.exports, module, module.exports, __webpack_require__);
module.loaded = true;
return module.exports
}
__webpack_require__.m = modules;
__webpack_require__.c = installedModules;
__webpack_require__.p = "";
return __webpack_require__(0)
})([function(module, exports, __webpack_require__) {
'use strict';
var canvas = document.createElement('canvas');
canvas.width = window.innerWidth;
canvas.height = window.innerHeight;
canvas.style.cssText = 'position:fixed;top:0;left:0;pointer-events:none;z-index:999999';
window.addEventListener('resize',
function() {
canvas.width = window.innerWidth;
canvas.height = window.innerHeight
});
document.body.appendChild(canvas);
var context = canvas.getContext('2d');
var particles = [];
var particlePointer = 0;
POWERMODE.shake = true;
function getRandom(min, max) {
return Math.random() * (max - min) + min
}
function getColor(el) {
if (POWERMODE.colorful) {
var u = getRandom(0, 360);
return 'hsla(' + getRandom(u - 10, u + 10) + ', 100%, ' + getRandom(50, 80) + '%, ' + 1 + ')'
} else {
return window.getComputedStyle(el).color
}
}
function getCaret() {
var el = document.activeElement;
var bcr;
if (el.tagName === 'TEXTAREA' || (el.tagName === 'INPUT' && el.getAttribute('type') === 'text')) {
var offset = __webpack_require__(1)(el, el.selectionStart);
bcr = el.getBoundingClientRect();
return {
x: offset.left + bcr.left,
y: offset.top + bcr.top,
color: getColor(el)
}
}
var selection = window.getSelection();
if (selection.rangeCount) {
var range = selection.getRangeAt(0);
var startNode = range.startContainer;
if (startNode.nodeType === document.TEXT_NODE) {
startNode = startNode.parentNode
}
bcr = range.getBoundingClientRect();
return {
x: bcr.left,
y: bcr.top,
color: getColor(startNode)
}
}
return {
x: 0,
y: 0,
color: 'transparent'
}
}
function createParticle(x, y, color) {
return {
x: x,
y: y,
alpha: 1,
color: color,
velocity: {
x: -1 + Math.random() * 2,
y: -3.5 + Math.random() * 2
}
}
}
function POWERMODE() {
{
var caret = getCaret();
var numParticles = 5 + Math.round(Math.random() * 10);
while (numParticles--) {
particles[particlePointer] = createParticle(caret.x, caret.y, caret.color);
particlePointer = (particlePointer + 1) % 500
}
} {
if (POWERMODE.shake) {
var intensity = 1 + 2 * Math.random();
var x = intensity * (Math.random() > 0.5 ? -1 : 1);
var y = intensity * (Math.random() > 0.5 ? -1 : 1);
document.body.style.marginLeft = x + 'px';
document.body.style.marginTop = y + 'px';
setTimeout(function() {
document.body.style.marginLeft = '';
document.body.style.marginTop = ''
},
75)
}
}
};
POWERMODE.colorful = false;
function loop() {
requestAnimationFrame(loop);
context.clearRect(0, 0, canvas.width, canvas.height);
for (var i = 0; i < particles.length; ++i) {
var particle = particles[i];
if (particle.alpha <= 0.1) continue;
particle.velocity.y += 0.075;
particle.x += particle.velocity.x;
particle.y += particle.velocity.y;
particle.alpha *= 0.96;
context.globalAlpha = particle.alpha;
context.fillStyle = particle.color;
context.fillRect(Math.round(particle.x - 1.5), Math.round(particle.y - 1.5), 3, 3)
}
}
requestAnimationFrame(loop);
module.exports = POWERMODE
},
function(module, exports) {
(function() {
var properties = ['direction', 'boxSizing', 'width', 'height', 'overflowX', 'overflowY', 'borderTopWidth', 'borderRightWidth', 'borderBottomWidth', 'borderLeftWidth', 'borderStyle', 'paddingTop', 'paddingRight', 'paddingBottom', 'paddingLeft', 'fontStyle', 'fontVariant', 'fontWeight', 'fontStretch', 'fontSize', 'fontSizeAdjust', 'lineHeight', 'fontFamily', 'textAlign', 'textTransform', 'textIndent', 'textDecoration', 'letterSpacing', 'wordSpacing', 'tabSize', 'MozTabSize'];
var isFirefox = window.mozInnerScreenX != null;
function getCaretCoordinates(element, position, options) {
var debug = options && options.debug || false;
if (debug) {
var el = document.querySelector('#input-textarea-caret-position-mirror-div');
if (el) {
el.parentNode.removeChild(el)
}
}
var div = document.createElement('div');
div.id = 'input-textarea-caret-position-mirror-div';
document.body.appendChild(div);
var style = div.style;
var computed = window.getComputedStyle ? getComputedStyle(element) : element.currentStyle;
style.whiteSpace = 'pre-wrap';
if (element.nodeName !== 'INPUT') style.wordWrap = 'break-word';
style.position = 'absolute';
if (!debug) style.visibility = 'hidden';
properties.forEach(function(prop) {
style[prop] = computed[prop]
});
if (isFirefox) {
if (element.scrollHeight > parseInt(computed.height)) style.overflowY = 'scroll'
} else {
style.overflow = 'hidden'
}
div.textContent = element.value.substring(0, position);
if (element.nodeName === 'INPUT') div.textContent = div.textContent.replace(/\s/g, "\u00a0");
var span = document.createElement('span');
span.textContent = element.value.substring(position) || '.';
div.appendChild(span);
var coordinates = {
top: span.offsetTop + parseInt(computed['borderTopWidth']),
left: span.offsetLeft + parseInt(computed['borderLeftWidth'])
};
if (debug) {
span.style.backgroundColor = '#aaa'
} else {
document.body.removeChild(div)
}
return coordinates
}
if (typeof module != "undefined" && typeof module.exports != "undefined") {
module.exports = getCaretCoordinates
} else {
window.getCaretCoordinates = getCaretCoordinates
}
} ())
}])
});
</script>
<script type="text/javascript">
POWERMODE.colorful = true; // ture 为启用礼花特效
POWERMODE.shake = false; // false 为禁用震动特效
document.body.addEventListener('input', POWERMODE);
</script>首先，将页面底部的js代码保存起来，命名activate-power-mode.js，并上传到主题的JS文件夹中，参考路径如下：/includes/js
然后，将以下代码添加到主题根目录下的footer.php文件中的</body>标签前保存即可：
<script src="<?php bloginfo('template_directory'); ?>/includes/js/activate-power-mode.js "></script>
<script>
POWERMODE.colorful = true; // ture 为启用礼花特效
POWERMODE.shake = false; // false 为禁用震动特效
document.body.addEventListener('input', POWERMODE);
</script>如果移动设备异常特效，以下代码判断移动端（参考）：
<?php if (is_single() || is_page() ) { ?>
<script src="<?php bloginfo('template_directory'); ?>/includes/js/activate-power-mode.js"></script>
<script type="text/javascript">
if(!(/iphone|ipod|ipad|ipad|Android|nokia|blackberry|webos|webos|webmate|bada|lg|ucweb|skyfire|sony|ericsson|mot|samsung|sgh|lg|philips|panasonic|alcatel|lenovo|cldc|midp|wap|mobile/i.test(navigator.userAgent.toLowerCase()))){
POWERMODE.colorful = true;
POWERMODE.shake = false;
document.body.addEventListener('input', POWERMODE);
}
</script>如果已经有判断条件代码<?php if (is_single() || is_page() ) { ?>，只需要将第上一段的代码添加在里面即可。
注意文件路径与文件名
如果您也喜欢这样有趣的特效，那么还可以看看这款wordpress美化教程：
