<template>
 <div class="tTable container body-content">
 <div class="form-group">
 <div class="form-group">
 <div class="page-header">
 表格
 </div>
 <table class="table table-bordered table-responsive table-striped">
 <thead>
 <tr>
 <th>時間</th>
 <th>點擊數</th>
 <th>點擊數</th>
 </tr>
 </thead>
 <tbody>
 <tr v-for="item in arrayData">
 <td>{{item.timestamp}}</td>
 <td>{{item.count}}</td>
 <td>{{item.count}}</td>
 </tr>
 </tbody>
 </table>
 <div class="pager" id="pager">
 <span class="form-inline">
 <select class="form-control" v-model="pagesize" v-on:change="showPage(pageCurrent,$event,true)" number>
 <option value="10">10</option>
 <option value="20">20</option>
 <option value="30">30</option>
 <option value="40">40</option>
 </select>
 </span>
 <span v-for="item in pageCount+1">
 <span v-if="item==1" class="btn btn-default" v-on:click="showPage(1,$event)" :class="{'disabled':fDisabled}">
 首頁
 </span>
 <span v-if="item==1" class="btn btn-default" v-on:click="showPage(pageCurrent-1,$event)" :class="{'disabled':fDisabled}">
 上一頁
 </span>
 <span v-if="item==1" class="btn btn-default" v-on:click="showPage(item,$event)">
 {{item}}
 </span>
 <span v-if="item==1&&item<showPagesStart-1" class="btn btn-default disabled">
 ...
 </span>
 <span v-if="item>1&&item<=pageCount-1&&item>=showPagesStart&&item<=showPageEnd&&item<=pageCount" class="btn btn-default" v-on:click="showPage(item,$event)">
 {{item}}
 </span>
 <span v-if="item==pageCount&&item>showPageEnd+1" class="btn btn-default disabled">
 ...
 </span>
 <span v-if="item==pageCount" class="btn btn-default" v-on:click="showPage(item,$event)" >
 {{item}}
 </span>
 <span v-if="item==pageCount" class="btn btn-default" v-on:click="showPage(pageCurrent+1,$event)" :class="{'disabled':lDisabled}">
 下一頁
 </span>
 <span v-if="item==pageCount" class="btn btn-default" v-on:click="showPage(pageCount,$event)" :class="{'disabled':lDisabled}">
 尾頁
 </span>
 </span>
 <span>{{pageCurrent}}/{{pageCount}}</span>
 </div>
 </div>
 </div>
 </div>
 </template>
 <script >
 export default {
 data(){
 return{
 //為第一頁或者最后一頁時，首頁，尾頁不能點擊
 fDisabled:false,
 lDisabled:false,
 //總項目數
 totalCount: 200,
 //分頁數
 pageCount: 20,
 //當前頁面
 pageCurrent: 1,
 //分頁大小
 pagesize: 10,
 //顯示分頁按鈕數
 showPages: 11,
 //開始顯示的分頁按鈕
 showPagesStart: 1,
 //結束顯示的分頁按鈕
 showPageEnd: 100,
 //分頁數據
 arrayData: []
 }
 },
 methods:{
 showPage(pageIndex, $event, forceRefresh){
 if (pageIndex > 0) {
 if (pageIndex > this.pageCount) {
 pageIndex = this.pageCount;
 }
 //判斷數據是否需要更新
 var currentPageCount = Math.ceil(this.totalCount / this.pagesize);
 if (currentPageCount != this.pageCount) {
 pageIndex = 1;
 this.pageCount = currentPageCount;
 }
 else if (this.pageCurrent == pageIndex && currentPageCount == this.pageCount && typeof (forceRefresh) == "undefined") {
 console.log("not refresh");
 return;
 }
 //處理分頁點中樣式
 var buttons = $("#pager").find("span");
 for (var i = 0; i < buttons.length; i++) {
 if (buttons.eq(i).html() != pageIndex) {
 buttons.eq(i).removeClass("active");
 }
 else {
 buttons.eq(i).addClass("active");
 }
 }
 //測試數據 隨機生成的
 var newPageInfo = [];
 var time=new Date();
 for (var i = 0; i < this.pagesize; i++) {
 newPageInfo[newPageInfo.length] = {
 timestamp: time,
 count: (i + (pageIndex - 1) * 20)
 };
 }
 this.pageCurrent = pageIndex;
 this.arrayData = newPageInfo;
 //如果當前頁首頁或者尾頁，則上一頁首頁就不能點擊，下一頁尾頁就不能點擊
 if(this.pageCurrent===1){
 this.fDisabled=true;
 }else if(this.pageCurrent===this.pageCount){
 this.lDisabled=true;
 }else{
 this.fDisabled=false;
 this.lDisabled=false;
 }
 //計算分頁按鈕數據
 if (this.pageCount > this.showPages) {
 if (pageIndex <= (this.showPages - 1) / 2) {
 this.showPagesStart = 1;
 this.showPageEnd = this.showPages - 1;
 console.log("showPage1")
 }
 else if (pageIndex >= this.pageCount - (this.showPages - 3) / 2) {
 this.showPagesStart = this.pageCount - this.showPages + 2;
 this.showPageEnd = this.pageCount;
 console.log("showPage2")
 }
 else {
 console.log("showPage3")
 this.showPagesStart = pageIndex - (this.showPages - 3) / 2;
 this.showPageEnd = pageIndex + (this.showPages - 3) / 2;
 }
 }
 console.log("showPagesStart:" + this.showPagesStart + ",showPageEnd:" + this.showPageEnd + ",pageIndex:" + pageIndex);
 }
 }
 },
 mounted(){
 this.showPage(this.pageCurrent, null, true);
 },
 computed:{
 }
}
 </script>