Created
October 20, 2013 21:03
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Add overall lesson timing to video listings on Coursera
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| function pad2(number){ | |
| if (number<10) { | |
| return "0" + parseInt(number); | |
| } else { | |
| return parseInt(number); | |
| } | |
| } | |
| var sectionList = $(".course-item-list-section-list"), | |
| headerList = $(".course-item-list-header"), | |
| re = /(\d\d?)+([m|:])(\d\d)/, | |
| totalTotalTime = 0, | |
| viewedTotalTime = 0, | |
| separator = "m"; | |
| hourSeparator = "h"; | |
| for(var i in headerList) { | |
| var totalSectionTime = 0, | |
| viewedSectionTime = 0, | |
| sections = sectionList.eq(i).find("li"), | |
| found = false; | |
| for (var j in sections) { | |
| var link = sections.eq(j).find(".lecture-link")[0]; | |
| if (link) { | |
| var text = re.exec(link.text); | |
| if (text && text.length > 2) { | |
| var thisTime = parseInt(text[1])*60 + parseInt(text[3]); | |
| separator = text[2]; | |
| if (thisTime>0) { found = true; } | |
| totalSectionTime += thisTime; | |
| if (sections.eq(j).hasClass("viewed")){ viewedSectionTime += thisTime; } | |
| } | |
| } | |
| } | |
| var timeRemaining = totalSectionTime-viewedSectionTime; | |
| if (found && headerList.eq(i).find("h3")[0]) { | |
| headerList.eq(i).find("h3")[0].innerText += " [" + parseInt(timeRemaining/60) + separator + pad2((totalSectionTime-viewedSectionTime)%60) + "/" + parseInt(totalSectionTime/60) + separator + pad2(totalSectionTime%60) +"]" ; | |
| } | |
| totalTotalTime += totalSectionTime; | |
| viewedTotalTime += viewedSectionTime; | |
| } | |
| if (separator != "m") { hourSeparator = ":"; } | |
| var totalTimeRemaining = totalTotalTime-viewedTotalTime; | |
| $("h2.course-page-header")[0].innerText += " [" + parseInt((totalTimeRemaining)/3600) + hourSeparator + pad2((totalTimeRemaining%3600)/60) + separator + pad2(totalTimeRemaining%60) + "/" + parseInt(totalTotalTime/3600) + hourSeparator + pad2((totalTotalTime%3600)/60) + separator + pad2(totalTotalTime%60) +"]" ; |
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