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<p>这是一个有趣的开始哦！</p>
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// Popup Window;
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.append('<div class="search-popup-overlay local-search-pop-overlay"></div>')
.css('overflow', 'hidden');
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'use strict';
// start loading animation
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.append('<div class="search-popup-overlay local-search-pop-overlay">' +
'<div id="search-loading-icon">' +
'<i class="fa fa-spinner fa-pulse fa-5x fa-fw"></i>' +
'</div>' +
'</div>')
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url: path,
dataType: isXml ? "xml" : "json",
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return {
title: $("title", this).text(),
content: $("content",this).text(),
url: $("url" , this).text()
};
}).get() : res;
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var resultContent = document.getElementById(content_id);
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keywords.push(searchText);
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var hitCount = 0;
var searchTextCount = 0;
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var titleInLowerCase = title.toLowerCase();
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var indexOfContent = [];
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keywords.forEach(function(keyword) {
function getIndexByWord(word, text, caseSensitive) {
var wordLen = word.length;
if (wordLen === 0) {
return [];
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text = text.toLowerCase();
word = word.toLowerCase();
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startPosition = position + wordLen;
}
return index;
}
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indexOfContent = indexOfContent.concat(getIndexByWord(keyword, contentInLowerCase, false));
});
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isMatch = true;
hitCount = indexOfTitle.length + indexOfContent.length;
}
}
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// sort index by position of keyword
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index.sort(function (itemLeft, itemRight) {
if (itemRight.position !== itemLeft.position) {
return itemRight.position - itemLeft.position;
} else {
return itemLeft.word.length - itemRight.word.length;
}
});
});
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var item = index[index.length - 1];
var position = item.position;
var word = item.word;
var hits = [];
var searchTextCountInSlice = 0;
while (position + word.length <= end && index.length != 0) {
if (word === searchText) {
searchTextCountInSlice++;
}
hits.push({position: position, length: word.length});
var wordEnd = position + word.length;
// move to next position of hit
index.pop();
while (index.length != 0) {
item = index[index.length - 1];
position = item.position;
word = item.word;
if (wordEnd > position) {
index.pop();
} else {
break;
}
}
}
searchTextCount += searchTextCountInSlice;
return {
hits: hits,
start: start,
end: end,
searchTextCount: searchTextCountInSlice
};
}
var slicesOfTitle = [];
if (indexOfTitle.length != 0) {
slicesOfTitle.push(mergeIntoSlice(title, 0, title.length, indexOfTitle));
}
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while (indexOfContent.length != 0) {
var item = indexOfContent[indexOfContent.length - 1];
var position = item.position;
var word = item.word;
// cut out 100 characters
var start = position - 20;
var end = position + 80;
if(start < 0){
start = 0;
}
if (end < position + word.length) {
end = position + word.length;
}
if(end > content.length){
end = content.length;
}
slicesOfContent.push(mergeIntoSlice(content, start, end, indexOfContent));
}
// sort slices in content by search text's count and hits' count
slicesOfContent.sort(function (sliceLeft, sliceRight) {
if (sliceLeft.searchTextCount !== sliceRight.searchTextCount) {
return sliceRight.searchTextCount - sliceLeft.searchTextCount;
} else if (sliceLeft.hits.length !== sliceRight.hits.length) {
return sliceRight.hits.length - sliceLeft.hits.length;
} else {
return sliceLeft.start - sliceRight.start;
}
});
// select top N slices in content
var upperBound = parseInt('1');
if (upperBound >= 0) {
slicesOfContent = slicesOfContent.slice(0, upperBound);
}
// highlight title and content
function highlightKeyword(text, slice) {
var result = '';
var prevEnd = slice.start;
slice.hits.forEach(function (hit) {
result += text.substring(prevEnd, hit.position);
var end = hit.position + hit.length;
result += '<b class="search-keyword">' + text.substring(hit.position, end) + '</b>';
prevEnd = end;
});
result += text.substring(prevEnd, slice.end);
return result;
}
var resultItem = '';
if (slicesOfTitle.length != 0) {
resultItem += "<li><a href='" + articleUrl + "' class='search-result-title'>" + highlightKeyword(title, slicesOfTitle[0]) + "</a>";
} else {
resultItem += "<li><a href='" + articleUrl + "' class='search-result-title'>" + title + "</a>";
}
slicesOfContent.forEach(function (slice) {
resultItem += "<a href='" + articleUrl + "'>" +
"<p class=\"search-result\">" + highlightKeyword(content, slice) +
"...</p>" + "</a>";
});
resultItem += "</li>";
resultItems.push({
item: resultItem,
searchTextCount: searchTextCount,
hitCount: hitCount,
id: resultItems.length
});
}
})
};
if (keywords.length === 1 && keywords[0] === "") {
resultContent.innerHTML = '<div id="no-result"><i class="fa fa-search fa-5x" /></div>'
} else if (resultItems.length === 0) {
resultContent.innerHTML = '<div id="no-result"><i class="fa fa-frown-o fa-5x" /></div>'
} else {
resultItems.sort(function (resultLeft, resultRight) {
if (resultLeft.searchTextCount !== resultRight.searchTextCount) {
return resultRight.searchTextCount - resultLeft.searchTextCount;
} else if (resultLeft.hitCount !== resultRight.hitCount) {
return resultRight.hitCount - resultLeft.hitCount;
} else {
return resultRight.id - resultLeft.id;
}
});
var searchResultList = '<ul class=\"search-result-list\">';
resultItems.forEach(function (result) {
searchResultList += result.item;
})
searchResultList += "</ul>";
resultContent.innerHTML = searchResultList;
}
}
if ('auto' === 'auto') {
input.addEventListener('input', inputEventFunction);
} else {
$('.search-icon').click(inputEventFunction);
input.addEventListener('keypress', function (event) {
if (event.keyCode === 13) {
inputEventFunction();
}
});
}
// remove loading animation
$(".local-search-pop-overlay").remove();
$('body').css('overflow', '');
proceedsearch();
}
});
}
// handle and trigger popup window;
$('.popup-trigger').click(function(e) {
e.stopPropagation();
if (isfetched === false) {
searchFunc(path, 'local-search-input', 'local-search-result');
} else {
proceedsearch();
};
});
$('.popup-btn-close').click(onPopupClose);
$('.popup').click(function(e){
e.stopPropagation();
});
$(document).on('keyup', function (event) {
var shouldDismissSearchPopup = event.which === 27 &&
$('.search-popup').is(':visible');
if (shouldDismissSearchPopup) {
onPopupClose();
}
});
</script>
<script>
(function(){
var bp = document.createElement('script');
var curProtocol = window.location.protocol.split(':')[0];
if (curProtocol === 'https') {
bp.src = 'https://zz.bdstatic.com/linksubmit/push.js';
}
else {
bp.src = 'http://push.zhanzhang.baidu.com/push.js';
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<div class="bg_content">
<div class="landscape"></div>
<div class="filter"></div>
<canvas id="canvas"></canvas>
</div>
<script>
function Star(id, x, y){
this.id = id;
this.x = x;
this.y = y;
this.r = Math.floor(Math.random()*2)+1;
var alpha = (Math.floor(Math.random()*10)+1)/10/2;
this.color = "rgba(255,255,255,"+alpha+")";
}
Star.prototype.draw = function() {
ctx.fillStyle = this.color;
ctx.shadowBlur = this.r * 2;
ctx.beginPath();
ctx.arc(this.x, this.y, this.r, 0, 2 * Math.PI, false);
ctx.closePath();
ctx.fill();
}
Star.prototype.move = function() {
this.y -= .15;
if (this.y <= -10) this.y = HEIGHT + 10;
this.draw();
}
Star.prototype.die = function() {
stars[this.id] = null;
delete stars[this.id];
}
function Dot(id, x, y, r) {
this.id = id;
this.x = x;
this.y = y;
this.r = Math.floor(Math.random()*5)+1;
this.maxLinks = 2;
this.speed = .5;
this.a = .5;
this.aReduction = .005;
this.color = "rgba(255,255,255,"+this.a+")";
this.linkColor = "rgba(255,255,255,"+this.a/4+")";
this.dir = Math.floor(Math.random()*140)+200;
}
Dot.prototype.draw = function() {
ctx.fillStyle = this.color;
ctx.shadowBlur = this.r * 2;
ctx.beginPath();
ctx.arc(this.x, this.y, this.r, 0, 2 * Math.PI, false);
ctx.closePath();
ctx.fill();
}
Dot.prototype.link = function() {
if (this.id == 0) return;
var previousDot1 = getPreviousDot(this.id, 1);
var previousDot2 = getPreviousDot(this.id, 2);
var previousDot3 = getPreviousDot(this.id, 3);
if (!previousDot1) return;
ctx.strokeStyle = this.linkColor;
ctx.moveTo(previousDot1.x, previousDot1.y);
ctx.beginPath();
ctx.lineTo(this.x, this.y);
if (previousDot2 != false) ctx.lineTo(previousDot2.x, previousDot2.y);
if (previousDot3 != false) ctx.lineTo(previousDot3.x, previousDot3.y);
ctx.stroke();
ctx.closePath();
}
function getPreviousDot(id, stepback) {
if (id == 0 || id - stepback < 0) return false;
if (typeof dots[id - stepback] != "undefined") return dots[id - stepback];
else return false;//getPreviousDot(id - stepback);
}
Dot.prototype.move = function() {
this.a -= this.aReduction;
if (this.a <= 0) {
this.die();
return
}
this.color = "rgba(255,255,255,"+this.a+")";
this.linkColor = "rgba(255,255,255,"+this.a/4+")";
this.x = this.x + Math.cos(degToRad(this.dir))*this.speed,
this.y = this.y + Math.sin(degToRad(this.dir))*this.speed;
this.draw();
this.link();
}
Dot.prototype.die = function() {
dots[this.id] = null;
delete dots[this.id];
}
var canvas = document.getElementById('canvas'),
ctx = canvas.getContext('2d'),
WIDTH,
HEIGHT,
mouseMoving = false,
mouseMoveChecker,
mouseX,
mouseY,
stars = [],
initStarsPopulation = 80,
dots = [],
dotsMinDist = 2,
maxDistFromCursor = 50;
setCanvasSize();
init();
function setCanvasSize() {
WIDTH = document.documentElement.clientWidth,
HEIGHT = document.documentElement.clientHeight;
canvas.setAttribute("width", WIDTH);
canvas.setAttribute("height", HEIGHT);
}
function init() {
ctx.strokeStyle = "white";
ctx.shadowColor = "white";
for (var i = 0; i < initStarsPopulation; i++) {
stars[i] = new Star(i, Math.floor(Math.random()*WIDTH), Math.floor(Math.random()*HEIGHT));
//stars[i].draw();
}
ctx.shadowBlur = 0;
animate();
}
function animate() {
ctx.clearRect(0, 0, WIDTH, HEIGHT);
for (var i in stars) {
stars[i].move();
}
for (var i in dots) {
dots[i].move();
}
drawIfMouseMoving();
requestAnimationFrame(animate);
}
window.onmousemove = function(e){
mouseMoving = true;
mouseX = e.clientX;
mouseY = e.clientY;
clearInterval(mouseMoveChecker);
mouseMoveChecker = setTimeout(function() {
mouseMoving = false;
}, 100);
}
function drawIfMouseMoving(){
if (!mouseMoving) return;
if (dots.length == 0) {
dots[0] = new Dot(0, mouseX, mouseY);
dots[0].draw();
return;
}
var previousDot = getPreviousDot(dots.length, 1);
var prevX = previousDot.x;
var prevY = previousDot.y;
var diffX = Math.abs(prevX - mouseX);
var diffY = Math.abs(prevY - mouseY);
if (diffX < dotsMinDist || diffY < dotsMinDist) return;
var xVariation = Math.random() > .5 ? -1 : 1;
xVariation = xVariation*Math.floor(Math.random()*maxDistFromCursor)+1;
var yVariation = Math.random() > .5 ? -1 : 1;
yVariation = yVariation*Math.floor(Math.random()*maxDistFromCursor)+1;
dots[dots.length] = new Dot(dots.length, mouseX+xVariation, mouseY+yVariation);
dots[dots.length-1].draw();
dots[dots.length-1].link();
}
//setInterval(drawIfMouseMoving, 17);
function degToRad(deg) {
return deg * (Math.PI / 180);
}
</script>
</body>
</html>