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ife_task_2.9.html
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ife_task_2.9.html
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<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>task 2.9</title>
<style type="text/css">
#big{height: 40px;}
input{margin-right: 10px;}
button{margin-right: 30px;}
#input1{margin-right: 30px;}
#cont{width: 100%; height: 300px;}
#cont div{display: flex; flex-grow: 1; flex-wrap: wrap; align-items: stretch; margin: 5px; border: 1px solid black; box-sizing: content-box; min-height: 30px; background-color: white;}
#cont .selected{background-color: #86ffff;}
#cont .show{background-color: #eeeeee;}
#cont .focus{background-color: #cb7eff;}
</style>
</head>
<body>
<div id="big"></div>
<div id="cont">
<div id="root">
Super
<div>
Car
<div>
Apple
<div>
pear
</div>
<div>
Pig
</div>
<div>
Cola
</div>
<div>
Soccer
</div>
</div>
<div>
Phone
</div>
<div>
<div>
Book
</div>
<div>
School
</div>
</div>
</div>
<div>
Note
<div>
Human
<div>
Code
</div>
<div>
Operate
</div>
<div>
Man
</div>
</div>
<div>
Program
<div>
Element
<div>
Cat
</div>
</div>
<div>
Glass
</div>
</div>
</div>
<div>
Fish
</div>
</div>
</div>
<script type="text/javascript">
var cont = document.getElementById('cont');
var container = document.getElementById('big');
var input = document.createElement('input');
container.appendChild(input);
var buttonSer = document.createElement('button');
buttonSer.innerHTML = '查询';
container.appendChild(buttonSer);
var buttonF = document.createElement('button');
buttonF.innerHTML = '深度遍历';
container.appendChild(buttonF);
var buttonL = document.createElement('button');
buttonL.innerHTML = '广度遍历';
container.appendChild(buttonL);
var input1 = document.createElement('input');
container.appendChild(input1);
var buttonAdd = document.createElement('button');
buttonAdd.innerHTML = '添加';
container.appendChild(buttonAdd);
var buttonDel = document.createElement('button');
buttonDel.innerHTML = '删除';
container.appendChild(buttonDel);
var root = document.getElementById('root');
var tree = []; //存储节点
//去除字符串左右两端空格
String.prototype.trim=function(){
return this.replace(/(^\s*)|(\s*$)/g, "");
}
//阻止事件冒泡
function stopPropagation(e) {
e = e || window.event;
if(e.stopPropagation) { //W3C阻止冒泡方法
e.stopPropagation();
} else {
e.cancelBubble = true; //IE阻止冒泡方法
}
}
function createTree () {
dfsTree();
tree.forEach( function(e){
e.onclick = function(){
resetSelect(tree);
addClass(this, 'selected');
stopPropagation();
}
});
}
createTree();
function dfsTree(){
tree = [];
DFS(root);
}
function resetSelect(tree){
tree.forEach(function(e){
removeClass(e, 'selected');
});
}
function addClass(element, value){
if ( !element.className ) {
element.className = value;
}
else {
element.className += value;
}
}
function removeClass(element, value){
if (element.className.indexOf(value) !== -1 ){
var temp = element.className.replace(value, '');
element.className = temp;
}
}
buttonSer.onclick = function(){
var search = input.value;
dfsTree();
resetSelect(tree);
var iii = false;
tree.forEach( function(e) {
if( e.firstChild.nodeType == 3 ){
if ( e.firstChild.nodeValue.trim().toLowerCase() == search.toLowerCase()){
addClass(e, 'focus');
setTimeout(function(e){
return function(){
removeClass(e, 'focus');
};
}(e), 1000);
iii = true;
}
}
});
if (!(iii)) alert('请输入正确的查询字符');
};
buttonDel.onclick = function(){
dfsTree();
tree.forEach(function(e){
if( e.className.indexOf('selected') !== -1){
e.remove(e);
}
});
}
buttonAdd.onclick = function(){
var addtext = input1.value;
dfsTree();
var sub = document.createElement('div');
sub.innerHTML = addtext;
tree.forEach(function(e){
if( e.className.indexOf('selected') !== -1){
e.appendChild(sub);
}
});
createTree();
}
//深度遍历
function DFS(node) {
if (node){
tree.push(node);
for(var i = 0, length = node.childElementCount; i < length; i++) {
DFS(node.children[i]);
}
}
}
//广度遍历
function BFS(node) {
if (node){
for(var i = 0, length = node.childElementCount; i < length; i++) {
BFS(node.children[i]);
}
tree.push(node);
}
}
//显示遍历的变化
function showtrees(tree){
resetSelect(tree);
if (tree.length > 0 ){
for (var i = 0; i < tree.length; i ++){
setTimeout(function(i){ return function() {tree[i].style.backgroundColor = '#eeeeee';}}(i), 1000*(i+1));
setTimeout(function(i){ return function() {tree[i].style.backgroundColor = '';} }(i), 1000*(i+1)+500);
}
}
}
buttonF.onclick = function(){
tree = [];
DFS(root);
showtrees(tree);
createTree();
}
buttonL.onclick = function(){
tree = [];
BFS(root);
showtrees(tree);
createTree();
}
</script>
</body>
</html>