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Added event "ready" when line numbering task complete#79
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8 changes: 8 additions & 0 deletionssamples/example.css
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,8 @@ | ||
| .hljs-ln-highlight { | ||
| background: #FFFAE3; | ||
| width: 100%; | ||
| } | ||
| .hljs-ln-numbers:hover { | ||
| color: #2badd4; | ||
| } |
111 changes: 111 additions & 0 deletionssamples/example.js
This file contains hidden or bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.Learn more about bidirectional Unicode characters
| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,111 @@ | ||
| $(function() { | ||
| function scrollToLineNumber(lineNumber) { | ||
| var selector = ".hljs-ln-line[data-line-number='" + lineNumber + "']"; | ||
| var element_to_scroll_to = document.querySelector(selector); | ||
| element_to_scroll_to.scrollIntoView(); | ||
| } | ||
| function extractLineNumbersFromHash(){ | ||
| var str = location.hash.substring(1); | ||
| var matches = str.match(/L\d+/g); // Regex match multiple events (/g) of the regex "L" + number | ||
| if (matches.length == 0){ | ||
| return { | ||
| first: null, | ||
| second: null, | ||
| }; | ||
| } | ||
| else if(matches.length == 1){ | ||
| return { | ||
| first: parseInt(matches[0].substring(1)), | ||
| second: null, | ||
| }; | ||
| } | ||
| else{ | ||
| return { | ||
| first: parseInt(matches[0].substring(1)), | ||
| second: parseInt(matches[1].substring(1)), | ||
| }; | ||
| } | ||
| } | ||
| function colorLineNumbers(lineNumberBegin, lineNumberEnd){ | ||
| // clean current highlighted lines first | ||
| var highlightedList = document.querySelectorAll(".hljs-ln-highlight"); | ||
| var idx; | ||
| for (idx = 0; idx < highlightedList.length ; idx++) { | ||
| highlightedList[idx].classList.remove("hljs-ln-highlight"); | ||
| } | ||
| if (!lineNumberBegin) return; | ||
| if (!lineNumberEnd) lineNumberEnd=lineNumberBegin; | ||
| var lineNumber; | ||
| for (lineNumber = lineNumberBegin; lineNumber < lineNumberEnd+1 ; lineNumber++) { | ||
| var selector = ".hljs-ln-code[data-line-number='" + lineNumber + "']"; | ||
| var element = document.querySelector(selector); | ||
| if (element){ | ||
| element.classList.add('hljs-ln-highlight'); | ||
| } | ||
| } | ||
| } | ||
| if (typeof hljs != "undefined") | ||
| { | ||
| ///////////////////////////// | ||
| // classic highlight js | ||
| ///////////////////////////// | ||
| hljs.configure({ | ||
| languages: [] | ||
| }) | ||
| $('pre code').each(function(i, e) {hljs.highlightBlock(e)}); | ||
| ///////////////////////////// | ||
| // line numbers highlight js - activate only on class "do-hljs-ln" | ||
| ///////////////////////////// | ||
| $('pre.do-hljs-ln code.hljs').each(function(i, block) { | ||
| hljs.lineNumbersBlock(block); | ||
| }); | ||
| // Add multi line coloring, click, and hashchange, | ||
| // Assumes hash is similar to github format. Can be a range (#L35-L68) or single line(#L128). | ||
| var preList = document.querySelectorAll("pre.do-hljs-ln code.hljs"); | ||
| var idx; | ||
| for (idx = 0; idx < preList.length ; idx++) { | ||
| preList[idx].addEventListener('ready', function(e) { | ||
| // scroll to hash | ||
| if (location.hash){ | ||
| var res = extractLineNumbersFromHash(); | ||
| scrollToLineNumber(res.first); | ||
| colorLineNumbers(res.first, res.second); | ||
| e.preventDefault(); | ||
| } | ||
| // add event listener scroll to hash change | ||
| $(window).on('hashchange', function() { | ||
| var res = extractLineNumbersFromHash(); | ||
| scrollToLineNumber(res.first); | ||
| colorLineNumbers(res.first, res.second); | ||
| e.preventDefault(); | ||
| }); | ||
| // add event listener scroll to click | ||
| $(".hljs-ln-n").click(function(){ | ||
| var lineNumber = parseInt( $(this).attr('data-line-number')); | ||
| var new_path = window.location.pathname + window.location.search + '#L' + lineNumber; | ||
| history.replaceState(null, null, new_path); // change hash without triggering hashchange event | ||
| colorLineNumbers(lineNumber, lineNumber) | ||
| e.preventDefault(); | ||
| }); | ||
| }, false); | ||
| }; | ||
| } | ||
| }); |
4 changes: 4 additions & 0 deletionssrc/highlightjs-line-numbers.js
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