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SUSTech_GPA

SUSTech GPA plugin

当前为 2018-10-14 提交的版本，查看 最新版本。

  1. // ==UserScript==
  2. // @name          SUSTech_GPA
  3. // @author        Edwardfang
  4. // @namespace     http://github.com/edwardfang/sustech_gpa
  5. // @description   SUSTech GPA plugin
  6. // @match         *://jwxt.sustc.edu.cn/jsxsd/kscj/cjcx_list
  7. // @match         *://jwxt.sustc.edu.cn/jsxsd/framework/main.jsp
  8. // @match         *://jwxt.sustc.edu.cn/jsxsd/framework/xsMain.jsp
  9. // @require       https://cdn.staticfile.org/jquery/1.12.4/jquery.min.js
  10. // @version       0.3.2
  11. // @run-at        document-end
  12. // ==/UserScript==
  13.  
  14.  
  15.  
  16. function getTableData(){
  17. 	const userful_columns = ['成绩/等级', '学分']
  18. 	const mapping = {'成绩/等级':'grade', '学分':'credit'}
  19. 	let myRows = [];
  20. 	let $headers = $("table#dataList th");
  21. 	let $rows = $("table#dataList tbody tr").each(function(index) {
  22. 	  $cells = $(this).find("td");
  23. 	  myRows[index] = {};
  24. 	  $cells.each(function(cellIndex) {
  25. 	  	if ($headers[cellIndex].children.length == 1) {
  26. 	  		myRows[index]['select'] = $(this).find("input").eq(0).prop("checked");
  27. 	  	}else{
  28. 	  		column_name = $($headers[cellIndex]).html();
  29. 	  		if (userful_columns.includes(column_name)) {
  30. 	  			myRows[index][mapping[column_name]] = $(this).html();
  31. 	  		}
  32. 	  	}
  33. 	  });    
  34. 	});
  35. 	return myRows.slice(1);
  36. };
  37.  
  38. function updateGPA(){
  39. 	const GPA_mapping_rules = {'A+':4, 'A':3.94, 'A-':3.85,
  40. 	 'B+':3.73, 'B':3.55, 'B-':3.32,'C+':3.09, 'C':2.78,
  41. 	  'C-':2.42,'D+':2.08, 'D':1.63, 'D-':1.15, 'F':0};
  42. 	let data = getTableData();
  43. 	const reducer = (info, cur) =>{
  44. 		// console.log(info);
  45. 		// console.log(cur);
  46. 		if (cur['grade'] != 'P' && cur['select'] == true) {
  47. 			let credit = parseInt(cur['credit']);
  48. 			info['total_credits'] += credit;
  49. 			info['total_points'] += GPA_mapping_rules[cur['grade']]*credit;
  50. 		}
  51. 		return info;
  52. 	}
  53. 	let init_info = {'total_credits': 0, 'total_points':0};
  54. 	let info = data.reduce(reducer, init_info)
  55. 	let final_gpa = info['total_points']/info['total_credits'];
  56. 	final_gpa = final_gpa.toFixed(2);
  57. 	$("p#gpa").text(`Selected GPA is ${final_gpa}.`);
  58. 	// console.log(final_gpa)
  59. 	//alert("Selected GPA is 4.0!");
  60. };
  61.  
  62.  
  63. function loadInGradePage(){
  64. 	$("table#dataList").find('th').eq(2).after('<th>\
  65. 		<input id="checkAll" type="checkbox" checked/>All</th>');
  66. 	$("table#dataList").find('th').eq(3).css("width", "40px");
  67. 	$('table#dataList').find('tr').each(function(){
  68.         $(this).find('td').eq(2).after('<td><input name="subBox" \
  69.         	type="checkbox" checked /></td>');
  70.     });
  71.     $("#checkAll").click(function() {
  72.         $('input[name="subBox"]').prop("checked",this.checked);
  73.         updateGPA();
  74.     });
  75.     let $subBox = $("input[name='subBox']");
  76.     $subBox.click(function(){
  77.         $("#checkAll").attr("checked",$subBox.length == $("input[name='subBox']:checked").length ? true : false);
  78.         updateGPA();
  79.     });
  80.     $("table#dataList").before("<p id='gpa'>Selected GPA is</p>" );
  81.     $("p#gpa").css("font-size", '20px').css('color', 'red');
  82.     updateGPA();
  83. }
  84.  
  85. function loadInIndexPage(){
  86. 	$("div.block10tex").text("GPA 查询");
  87. 	$("div.block10").parent().eq(0).attr('href', '/jsxsd/kscj/cjcx_list')
  88. }
  89.  
  90. $(function(){
  91. 	let pathname = window.location.pathname;
  92. 	if (pathname == '/jsxsd/kscj/cjcx_list') {
  93. 		loadInGradePage();
  94. 	}else if(pathname == '/jsxsd/framework/main.jsp' ||
  95. 		pathname == '/jsxsd/framework/xsMain.jsp'
  96. 		){
  97. 		loadInIndexPage();
  98. 	}
  99. });