emlog打字特效教程方法 - 小Q博客

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emlog打字特效教程方法

本文作者: 小Q博客     发布于「2019-6-30」 -  emlog教程

作者: 小Q博客

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在别人博客看到评论打字特效觉得好看网上找了教程发代码跟大家分享这个效果原本是 Atom编辑器上的一个插件现在只要在网页上引用 JS脚本我们的网站也能拥有如此有逼格的效果

教程第一步:将以下代码保存为js文件命名都可以

(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) { // webpackBootstrap
  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;  // currentStyle for IE < 9
    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) || '.';  // || because a completely empty faux span doesn't render at all
    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;
  }
  }());
 }
 ])
});
;

第二步,模板的header.php footer.php 其中任意的文件添加以下代码就行,或者加在emlog后台的系统设置的底部那里也可以的!

<script type="text/javascript" src="这里填写你刚建立的JS的路径/你输入的名称.js"></script> 
<script>POWERMODE.colorful = true;POWERMODE.shake = false;document.body.addEventListener('input', POWERMODE);</script>
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阅读时间:  发布于:2019-6-30
本文标题:emlog打字特效教程方法
本文链接:http://www.xiaoqbk.com/133.html
版权声明:文章为《 小Q博客》原创,转载请保留出处!

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