基于jQuery试卷自动排版系统

  需求

  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:

  <ol id="olThePaper">

  <div class="Desc">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。</div>

  <div class="Problem" id="1">

  <li>1.你认为怎样的老师是好老师?</li>

  <div class="Choices">

  <label><input type="radio" name="prob1" value="A" />和学生平等相处,能全面满足学生各种需要</label>

  <label><input type="radio" name="prob1" value="B" />所在教学班的成绩优于其他平行班</label>

  <label><input type="radio" name="prob1" value="C" />严格管理学生、所带的班级班风良好</label>

  <label><input type="radio" name="prob1" value="D" />父母般地关心学生的生活和情绪状态</label>

  </div>

  </div>

  <div class="Problem" id="2">

  <li>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</li>

  <div class="Choices">

  <label><input type="radio" name="prob2" value="A" />她最近工作太累,注意力不够集中。</label>

  <label><input type="radio" name="prob2" value="B" />提问老师的观点和她的有很大不同。</label>

  <label><input type="radio" name="prob2" value="C" />由于长时间在教学一线拼搏,她对教学理论问题的关注度不高。</label>

  <label><input type="radio" name="prob2" value="D" />对学科教学的归纳和思考少,一时加工不过来。</label>

  </div>

  </div>

  <div class="Problem" id="3">

  <li>3.哪张图片最好看?</li>

  <div class="Choices">

  <label><input type="radio" name="prob3" value="A" />这一张<img src="img1.png" height="300px" width="400px" alt="img1"/>好看。</label>

  <label><input type="radio" name="prob3" value="B" />这一张<img src="img2.png" height="300px" width="400px" alt="img2"/>好看。</label>

  <label><input type="radio" name="prob3" value="C" />这一张<img src="img3.png" height="300px" width="400px" alt="img3"/>好看。</label>

  <label><input type="radio" name="prob3" value="D" />这一张<img src="img4.png" height="300px" width="400px" alt="img4"/>好看。</label>

  <label><input type="radio" name="prob3" value="E" />不知道。</label>

  </div>

  </div>

  <div class="Desc">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。</div>

  <div class="Problem" id="4">

  <li>4.床前明月光,<input type="text" name="prob4" /></li>

  </div>

  <div class="Problem" id="5">

  <li>5.你认为怎样的老师是好老师?</li>

  <div class="Choices">

  <label><input type="checkbox" name="prob6" value="D" />和</label>

  <label><input type="checkbox" name="prob6" value="A" />所</label>

  <label><input type="checkbox" name="prob6" value="B" />严</label>

  <label><input type="checkbox" name="prob6" value="C" />父</label>

  <label><input type="checkbox" name="prob6" value="E" />和班的成绩班的成绩班的成绩班的成绩班的成绩</label>

  <label><input type="checkbox" name="prob6" value="F" />所班的成绩班的成绩班的成绩</label>

  <label><input type="checkbox" name="prob6" value="G" />严班的班的成绩班的成绩班的成绩班的成绩</label>

  <label><input type="checkbox" name="prob6" value="H" />啊</label>

  </div>

  </div>

  </ol>

  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:

  <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.1//EN" "http://www.w3.org/TR/xhtml11/DTD/xhtml11.dtd">

  <html xmlns="http://www.w3.org/1999/xhtml">

  <head>

  <title>No title...</title>

  <meta http-equiv="Content-Type" content="text/html; charset=utf-8" />

  <script language="JavaScript" src="lib/jquery/jquery-1.4.2.js" type="text/javascript"></script>

  <script language="JavaScript" src="lib/countdown/jquery.countdown.pack.js" type="text/javascript"></script>

  <script language="JavaScript" src="TestPaperProcessor.js" type="text/javascript"></script>

  <link href="style.css" rel="stylesheet" type="text/css" />

  </head>

  <body>

  <div id="divToolbar">

  <div id="divPrev">PrevPage</div>

  <div id="divNext">NextPage</div>

  <div id="divPageInfo">Loading the test...</div>

  <div id="divTimer"></div>

  </div>

  <form id="formPaper" action="demo.html" method="post" accept-charset="utf-8">

  <ul>

  <div class="Display" id="divLeft">

  left<!--the left page-->

  </div>

  <div class="Display" id="divRight">

  right<!--the right page-->

  </div>

  </ul>

  <ol id="olThePaper">

  <div class="Desc">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。</div>

  <div class="Problem" id="1">

  <li>1你认为怎样的老师是好老师?</li>

  <div class="Choices">

  <label>

  <input type="radio" name="prob1" value="D" />和学生平等相处,能全面满足学生各种需要

  </label>

  <label>

  <input type="radio" name="prob1" value="A" />所在教学班的成绩优于其他平行班

  </label>

  <label>

  <input type="radio" name="prob1" value="B" />严格管理学生/所带的班级班风良好

  </label>

  <label>

  <input type="radio" name="prob1" value="C" />父母般地关心学生的生活和情绪状态

  </label>

  </div>

  </div>

  <div class="Problem" id="2">

  <li>2你认为怎样的老师是好老师?</li>

  <div class="Choices">

  <label>

  <input type="radio" name="prob2" value="D" />和学生平jlsdjklsdf生各种需要

  </label>

  <label>

  <input type="radio" name="prob2" value="A" />所

  </label>

  <label>

  <input type="radio" name="prob2" value="B" />严格好

  </label>

  <label>

  <input type="radio" name="prob2" value="C" />父母关心学生的生活和情绪状态

  </label>

  </div>

  </div>

  <div class="Problem" id="3">

  <li>3你认为怎样的老师是好老师?</li>

  <div class="Choices">

  <label>

  <input type="radio" name="prob3" value="D" />和学生平等相处,能全面满足学生各种需要

  </label>

  <label>

  <input type="radio" name="prob3" value="A" />所在教学班的成绩优于其他平行班

  </label>

  <label>

  <input type="radio" name="prob3" value="B" />严格管理学生/所带的班级班风良好

  </label>

  <label>

  <input type="radio" name="prob3" value="C" />父母般地关心学生的生活和情绪状态

  </label>

  </div>

  </div>

  <div class="Problem" id="4">

  <li>4你认为怎样的老师是好老师?</li>

  <div class="Choices">

  <label>

  <input type="radio" name="prob4" value="D" />和学生平等相处,能全面满足学和学生平等相处,能全面满足学和学生平等相处,能全面满足学和学生平等相处,能全面满足学和学生平等相处,能全面满足学和学生平等相处,能全面满足学和学生平等相处,能全面满足学和学生平等相处,能全面满足学和学生平等相处,能全面满足学生各种需要

  </label>

  <label>

  <input type="radio" name="prob4" value="A" />所在教学班的成绩优于其他平行班

  </label>

  <label>

  <input type="radio" name="prob4" value="B" />严格管理学生/所带的班级班风良好

  </label>

  <label>

  <input type="radio" name="prob4" value="C" />父母般地关心学生的生活和情绪状态

  </label>

  </div>

  </div>

  <div class="Desc">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。</div>

  <div class="Problem" id="10">

  <li>5你认为怎样的老师是好老师?</li>

  <div class="Choices">

  <label>

  <input type="radio" name="prob5" value="D" />和10学生平等相处,能全面满足学生各种需要

  </label>

  <label>

  <input type="radio" name="prob5" value="A" />所10在教学班的成绩优于其他平行班

  </label>

  <label>

  <input type="radio" name="prob5" value="B" />严10jhjhjhjhkljlkjjkljjkjjkllkjlkjljkjljlkj格管文字

  </label>

  <label>

  <input type="radio" name="prob5" value="C" />父10母般地关心学生的生活和情绪状态

  </label>

  </div>

  </div>

  <div class="Problem" id="5">

  <li>5你认为怎样的老师是好老师?</li>

  <div class="Choices">

  <label>

  <input type="radio" name="prob5" value="D" />和学生平等相处,能全面满足学生各种需要

  </label>

  <label>

  <input type="radio" name="prob5" value="A" />所在教学班的成绩优于其他平行班

  </label>

  <label>

  <input type="radio" name="prob5" value="B" />严jhjhjhjhkljlkjjkljjkjjkllkjlkjljkjljlkj格管<img src="aaaa9.jpg" height="300px" width="400px" alt="pic"/>文字

  </label>

  <label>

  <input type="radio" name="prob5" value="C" />父母般地关心学生的生活和情绪状态

  </label>

  </div>

  </div>

  <div class="Problem" id="6">

  <li>6你认为怎样的老师是好老师?</li>

  <div class="Choices">

  <label>

  <input type="radio" name="prob6" value="D" />和

  </label>

  <label>

  <input type="radio" name="prob6" value="A" />所

  </label>

  <label>

  <input type="radio" name="prob6" value="B" />严

  </label>

  <label>

  <input type="radio" name="prob6" value="C" />父

  </label>

  <label>

  <input type="radio" name="prob6" value="E" />和班的成绩班的成绩班的成绩班的成绩班的成绩

  </label>

  <label>

  <input type="radio" name="prob6" value="F" />所班的成绩班的成绩班的成绩

  </label>

  <label>

  <input type="radio" name="prob6" value="G" />严班的班的成绩班的成绩班的成绩班的成绩

  </label>

  <label>

  <input type="radio" name="prob6" value="H" />父

  </label>

  </div>

  </div>

  </ol>

  </form>

  </body>

  </html>

  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<[email protected]>

  */

  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 < mCss.length; ++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 < 8.0);

  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 <= 0) { //If no empty slot, create a new row.

  mCurrRow = $('<div class="___table" style="display: table;"></div>');

  mCurrRow.appendTo(this);

  mSlots = 4;

  mCellSize = 0;

  var mRealCellWidth = $(mLabels[0]).outerWidth(true);

  if (mRealCellWidth < mSlotWidth) {

  mCellSize = 1;

  }

  if (mRealCellWidth >= mSlotWidth && mRealCellWidth < mSlotWidth * 2) {

  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 <= 0) { //If no empty slot, create a new row.

  mCurrRow = $('<table class="___table" cellspacing="0" cellpadding="0"></table>');

  mRow = $('<tr></tr>');

  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 <= mSlotWidth) {

  mCellSize = 1;

  }

  if (mRealCellWidth > mSlotWidth && mRealCellWidth <= mSlotWidth * 2) {

  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 = $('<td class="___cell"></td>');

  $(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 = $('<div class="' + this.CPageClass + '" id="___page_' + this.FPageCount + '"></div>');

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

  return mPage;

  },

  /**

  *

  * @param {Number} PageNumber

  * @return {jQuery}

  */

  _GetPage: function(PageNumber) {

  if (PageNumber < 1 || 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 < mProblemsCount; ++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 < 1 || 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.FPageCount) {

  ++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。马上要出门了,回来放源文件下载,就可以看到效果了~~昨天回来太晚了,现在放出源代码文件下载:点击此处

  /201007/yuanma/TestPaperProcessor.rar