欢迎您访问程序员文章站本站旨在为大家提供分享程序员计算机编程知识!
您现在的位置是: 首页  >  web前端

基于jQuery的试卷自动排版系统实现代码_jquery

程序员文章站 2022-05-01 18:26:19
...
根据提供的试卷题目(是一个干净的只有“数据”的HTML网页)生成一份多页的试卷,用户能执行翻页、具有答题时间限制,展示给用户的试卷中题目需要占用尽量少的空间(比如选择题中把两条较短的选项由两行合并到一行)、同一道题目不要跨页面显示以方便答题者,管理员能够改变试卷的样式(字体、颜色、行距、页面边距,像字处理软件一样……),题目之间可以插入一些说明性的文字(比如告知答题者作答的须知等等)。题目提干、选择题的选项、说明文字可以包含多媒体信息(文字、图片、列表、表格、视频等等……)。选择题选项数目不限、单选多选不限。翻页要有可订制的动画效果

提供的试卷样板类似如下(Input):
复制代码 代码如下:


    选择题:说明文字。说明文字。说明文字。说明文字。说明文字。说明文字。说明文字。说明文字。说明文字。说明文字。说明文字。说明文字。说明文字。说明文字。


  1. 1.你认为怎样的老师是好老师?









  2. 2.一位有15年教龄的英语教师,教了多年高三,可谓学校的核心骨干。一次接受邀请到外校介绍教学经验,台下有老师发表了观点并问到几个英语教法发面的问题,一下子把她给卡住了。这是因为









  3. 3.哪张图片最好看?









  4. 填空题和选择题:一大堆的说明文字。一大堆的说明文字。一大堆的说明文字。一大堆的说明文字。一大堆的说明文字。


  5. 4.床前明月光,



  6. 5.你认为怎样的老师是好老师?














思路
面对这种需求该怎么办呢?使用JavaScript了,看来。后来决定用jQuery,Aptana作IDE(虽然jQuery支持库在Windows上死活装不上去,换了个OS就好了,奇怪),格式么就用CSS了。

具体步骤:

导入试卷题目HTML
对所有选择题进行排版,把一行划分为四个位置,使选项尽量适应一个位置、两个位置或四个位置(也就是一行四项、一行两项或者一行一项的效果)
对所有题目进行分页
思路还是清晰的,但是由于浏览器众多,还是比较麻烦的,并且我是新手,没接触过jQuery之前……

实现
页面文件(和例子不同,但是格式一样的)
复制代码 代码如下:




No title...








PrevPage

NextPage

Loading the test...






    left


    right



    选择题:说明文字。说明文字。说明文字。说明文字。说明文字。说明文字。说明文字。说明文字。说明文字。说明文字。说明文字。说明文字。说明文字。说明文字。


  1. 1你认为怎样的老师是好老师?









  2. 2你认为怎样的老师是好老师?









  3. 3你认为怎样的老师是好老师?









  4. 4你认为怎样的老师是好老师?








  5. 还是选择题:一大堆的说明文字。一大堆的说明文字。一大堆的说明文字。一大堆的说明文字。一大堆的说明文字。


  6. 5你认为怎样的老师是好老师?









  7. 5你认为怎样的老师是好老师?









  8. 6你认为怎样的老师是好老师?

















样式文件(CSS)
复制代码 代码如下:

/* YahooUI CSS Reset */
body,div,dl,dt,dd,ul,ol,li,h1,h2,h3,h4,h5,h6,pre,form,fieldset,input,textarea,p,blockquote,th,td { padding: 0; margin: 0; }
table { border-collapse: collapse; border-spacing: 0; }
fieldset,img { border: 0; }
address,caption,cite,code,dfn,em,strong,th,var { font-weight: normal; font-style: normal; }
ol,ul { list-style: none; }
caption,th { text-align: left; }
h1,h2,h3,h4,h5,h6 { font-weight: normal; font-size: 100%; }
q:before,q:after { content:''; }
abbr,acronym { border: 0;}

label { padding: 0; margin: 0; }

/* My css */
.Choices { line-height: 150%; margin: 5px 0; }
.Page { height: 500px; border: solid 1px gray; }
#olThePaper, .Display { padding: 0; width: 500px; }
/* NOTICE: the width of .Display and #olThePaper should be the SAME. */
.Display { float: left; }

#divToolbar { height: 35px; }
#divPrev, #divNext { float: left; width: 100px; height: 30px; border: solid 1px green; background-color: #999999; }
#divPageInfo { float: left; width: 100px; height: 30px; }
#divTimer { float: left; width: 500px; height: 30px; }


/*for debugging... perhaps for non-IE only*/
/**label { outline: dotted 1px red; background-color: gray; }**/
/**div {outline: dashed 1px blue;}**/

下面是重点,TTestPaperProcessor.js:
复制代码 代码如下:

/**
*
* @param {String} PaperOlId the id value of the ol tags indicating pages.
* @param {String} ProblemClass the css class name for problem area.
* @param {String} DescClass the css class name for description area.
* @param {String} ChoicesClass the css class name for choices area.
* @param {String} LeftPageId the id of the left page.
* @param {String} RightPageId the id of the right page.
* @author ExSystem
*/
function TTestPaperProcessor(PaperOlId, ProblemClass, DescClass, ChoicesClass, LeftPageId, RightPageId) {
this.FPaperOlId = PaperOlId;
this.FProblemClass = ProblemClass;
this.FDescClass = DescClass;
this.FChoicesClass = ChoicesClass;
this.FLeftPageId = LeftPageId;
this.FRightPageId =RightPageId;
$('#' + this.FLeftPageId).html('');
$('#' + this.FRightPageId).html('');
this._FormatProblemOptions();
this._DivideIntoPages();
this.setCurrPage(1);
}

TTestPaperProcessor.prototype = {
FPaperOlId: '', //the id property of the ol tag contains the whole test paper.
FProblemClass: '', //the css class name for problem area.
FDescClass: '', //the css class name for description area.
FChoicesClass: '', //the css class name for choices area.
FLeftPageId: '', //the left page.
FRightPageId: '', //the right page.
CPageClass: 'Page',
FIsDisplayTableSupported: null, //whether the browser is the EVIL M$IE6,7 that does not support display: table(-cell).
FCurrPage: 0, //start from 1, 0 for no page has been displayed yet.
FPageCount: 0, //page count.
// /**
// * Get external css stylesheet info.
// * @param {String} Selector The selector in the css style sheet.
// * @param {String} Property The property name.
// * @return {String} The value of the property, or null for undefined property.
// */
// _GetCssInfo: function(Selector, Property) {
// var mCss = document.styleSheets[0].cssRules || document.styleSheets[0].rules;
// for (var mIndex = 0; mIndex // if (mCss[mIndex].selectorText.toLowerCase() == Selector) {
// return mCss[mIndex].style[Property];
// }
// }
// return null;
// },

/**
* @return {Boolean}
*/
_IsDisplayTableSupported: function() {
if (this.FIsDisplayTableSupported != null) {
return this.FIsDisplayTableSupported;
}

this.FIsDisplayTableSupported = !(jQuery.browser.msie && jQuery.browser.version return this.FIsDisplayTableSupported;
},

/**
* Formats radios and checkboxes for the Choices quiz.
*/
_FormatProblemOptions: function() {
var mThis = this;
var mSelector = '.' + this.FProblemClass + ' .' + this.FChoicesClass;
$(mSelector).each(function() {
//Rearrange the options for each problem ordered by offsetWidth of the label tag.
var mLabels = new Array();
mLabels = jQuery.makeArray($('label', this));
mLabels.sort(function(First, Second) {
return $(Second).outerWidth(true) > $(First).outerWidth(true);
});
$(mLabels).appendTo(this);

//Layout the options into the appropreate form.
var mSlots = -1; //Force to create a new row, inside the while() loop.
var mSlotWidth = $(mSelector).width() / 4.0;
var mCellSize = 0;
if (mThis._IsDisplayTableSupported()) {
while (mLabels.length > 0) {
//alert($(mLabels[0]).outerWidth(true) + '::' + $(mLabels[0]).outerHeight(true) + '::' + $(mLabels[0]).html());
if (mSlots mCurrRow = $('');
mCurrRow.appendTo(this);
mSlots = 4;
mCellSize = 0;

var mRealCellWidth = $(mLabels[0]).outerWidth(true);
if (mRealCellWidth mCellSize = 1;
}
if (mRealCellWidth >= mSlotWidth && mRealCellWidth mCellSize = 2;
}
if (mRealCellWidth >= mSlotWidth * 2) {
mCellSize = 4;
}
}
mSlots -= mCellSize;
if (mSlots >= 0) { //If empty slots exists, put the cell into the row.
mLabel = mLabels.shift();
$(mLabel).addClass('___cell');
$(mLabel).css('display', 'table-cell');
$(mLabel).appendTo(mCurrRow);
}
}
$('.___table').each(function() { //Align all the tables and cells.
$(this).css('width', '100%');
var mCellWidth = 100 / $('.___cell', this).length;
$('.___cell', this).css('width', mCellWidth + '%');
});
}
else { // for the evil M$IE6, use table, tr, td tags.
while (mLabels.length > 0) {
if (mSlots mCurrRow = $('
');
mRow = $('');
mRow.appendTo(mCurrRow);
mCurrRow.appendTo(this);
mSlots = 4;
mCellSize = 0;

var mRealCellWidth = $(mLabels[0]).attr('offsetWidth');
//The EVIL IE only:
//be sure to use this css reset: table { border-collapse: collapse; border-spacing: 0; }
//otherwise, 2 lines will be occupied by some long problem options instead of 1.
//or use this code instead: var mRealCellWidth = $(mLabels[0]).attr('offsetWidth') * 1.3;
if (mRealCellWidth mCellSize = 1;
}
if (mRealCellWidth > mSlotWidth && mRealCellWidth mCellSize = 2;
}
if (mRealCellWidth > mSlotWidth * 2) {
mCellSize = 4;
}
}
mSlots -= mCellSize;
if (mSlots >= 0) { //If empty slots exists, put the cell into the row.
mLabel = mLabels.shift();
mCell = $('');
$(mLabel).appendTo(mCell);
mCell.appendTo($('tr', mCurrRow)[0]);
}
}
$('.___table').each(function() { //Align all the tables and cells.
$(this).css('width', '100%');
var mCellWidth = 100 / $('tbody tr .___cell', this).length;
$('tbody tr .___cell', this).css('width', mCellWidth + '%');
});
}
});
},

/**
* Create a new page, and add it to the paper.
* @return {jQuery} the new page.
*/
_CreateNewPage: function() {
++this.FPageCount;

mPage = $('');
mPage.appendTo($('#' + this.FPaperOlId));

return mPage;
},

/**
*
* @param {Number} PageNumber
* @return {jQuery}
*/
_GetPage: function(PageNumber) {
if (PageNumber this.FPageCount) {
throw new Error('invalid page number: ' + PageNumber + '.');
}
return $('#___page_' + PageNumber);
},

/**
*
*/
_DivideIntoPages: function() {
var mProblems = $('.' + this.FProblemClass + ', .' + this.FDescClass);
var mProblemsCount = mProblems.length;
var mCurrPage = this._CreateNewPage();
//var mPageHeight = mCurrPage.attr('offsetHeight'); chrome: sometimes 0. safari: always 0, IF PUTTED IN $(window).ready().
var mPageHeight = mCurrPage.outerHeight(true); //the same as the code above. FIX: PUT IT INTO $(window).load().
var mUsedPageHeight = 0;
for (var mCurrProblem = 0; mCurrProblem if (mUsedPageHeight + $(mProblems[mCurrProblem]).outerHeight(true) > mPageHeight) {
mCurrPage.hide();
mCurrPage = this._CreateNewPage();
mPageHeight = mCurrPage.outerHeight(true);
mUsedPageHeight = 0;
}
$(mProblems[mCurrProblem]).appendTo(mCurrPage);
mUsedPageHeight += $(mProblems[mCurrProblem]).outerHeight(true);
}
mCurrPage.hide();
},
/**
* Get the current page of the left side, started from 1.
* @return {Number} The current page.
*/
getCurrPage: function() {
if (this.FPageCount == 0) {
throw new Error('No page has been created yet.');
}
return this.FCurrPage;
},
/**
* Trun to a specific page in the left side.
* @param {Number} Value The page number.
*/
setCurrPage: function(Value) {
if (Value this.FPageCount) {
throw new Error('No such page: ' + Value + '.');
}
this.FCurrPage = parseInt(Value / 2) * 2 + 1; // to get an odd number.
$('#' + this.FLeftPageId + ' .' + this.CPageClass).hide();
$('#' + this.FRightPageId + ' .' + this.CPageClass).hide();
if (this.FCurrPage >= 0) {
$('#___page_' + this.FCurrPage).appendTo($('#' + this.FLeftPageId));
$('#___page_' + this.FCurrPage).show('fast');
if (this.FCurrPage ++this.FCurrPage;
$('#___page_' + this.FCurrPage).appendTo($('#' + this.FRightPageId));
$('#___page_' + this.FCurrPage).show('fast');
--this.FCurrPage;
}
}
},
/**
* @retrun {Number}
*/
getPageCount: function() {
return this.FPageCount;
},
/**
*
*/
Prev: function() {
this.setCurrPage(this.FCurrPage - 2);
},
/**
*
*/
Next: function() {
this.setCurrPage(this.FCurrPage + 2);
}
};

//client code goes here...
$(window).load(function() {
var obj = new TTestPaperProcessor('olThePaper', 'Problem', 'Desc', 'Choices', 'divLeft', 'divRight');
$('#divPrev').click(function() {
try {
obj.Prev();
$('#divPageInfo').text(obj.getCurrPage() + ' of ' + obj.getPageCount());
}
catch (e) {
alert('No such page!');
}
});
$('#divNext').click(function() {
try {
obj.Next();
$('#divPageInfo').text(obj.getCurrPage() + ' of ' + obj.getPageCount());
}
catch (e) {
alert('No such page!');
}
});
//USAGE: http://keith-wood.name/countdown.html
function TimeUp() {
$('#formPaper').submit();
}
$('#divTimer').countdown({
until: '+90m',
compact: true,
format: 'HMS',
description: '',
onExpiry: TimeUp
});
$('#divPageInfo').text(obj.getCurrPage() + ' of ' + obj.getPageCount());
});

嘿嘿,其实这是一个俺们学校一位博导老师的项目的一部分~~托给我做了。
测试代码打包http://xiazai.jb51.net/201101/yuanma/TestPaperProcessor.rar
相关标签: 试卷 自动排版