Prism fixes #17
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -1,4 +1,18 @@ | ||
| article { | ||
| pre[class*="language-"] > code { | ||
| font-size: 16px; | ||
| border-left: none; | ||
| box-shadow: 0px 0px 0px 1px #dfdfdf; | ||
| background-image: none; | ||
| } | ||
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|
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| pre[class*=language-]:after, pre[class*=language-]:before { | ||
| display: none; | ||
| content: none; | ||
| } | ||
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| .line-highlight { | ||
| background: rgba(0, 180, 0, .1); | ||
| background: linear-gradient(to right, rgba(0, 180, 0, .1) 70%, rgba(0, 180, 0, 0)); | ||
| } | ||
| } |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,170 @@ | ||
| if (typeof self === 'undefined' || !self.Prism || !self.document || !document.querySelector) { | ||
| throw new Error('Prism must be loaded before prism-collapse'); | ||
| } | ||
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| function hasClass(element, className) { | ||
| className = " " + className + " "; | ||
| return (" " + element.className + " ").replace(/[\n\t]/g, " ").indexOf(className) > -1 | ||
| } | ||
|
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| function adjustHighlights(pre, collapseRange, visible) { | ||
| collapseRange = collapseRange.split('-').map(function(value) { | ||
| return parseInt(value); | ||
| }); | ||
|
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| var highlights = $(pre).find('.line-highlight'); | ||
| var lineHeight = getLineHeight(highlights); | ||
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| highlights.each(function() { | ||
| var highlight = $(this); | ||
| var range = highlight.attr('data-range').split('-').map(function(value) { | ||
| return parseInt(value); | ||
| }); | ||
|
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| if (range.length === 1) { | ||
| var line = range[0]; | ||
| if (line < collapseRange[0]) { | ||
| return; | ||
| } | ||
|
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| if (line > collapseRange[1]) { | ||
| var top = parseFloat(highlight.css('top').slice(0, -2)); | ||
| var offset = (collapseRange[1] - collapseRange[0]) * lineHeight; | ||
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| highlight.css('top', top + (visible ? offset : -offset)); | ||
| return; | ||
| } | ||
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| highlight.css('display', visible ? 'block' : 'none'); | ||
| return; | ||
| } | ||
|
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| if (range.length === 2) { | ||
| if (range[1] < collapseRange[0]) { | ||
| return; | ||
| } | ||
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| if (range[0] > collapseRange[1]) { | ||
| var top = parseFloat(highlight.css('top').slice(0, -2)); | ||
| var offset = (collapseRange[1] - collapseRange[0]) * lineHeight; | ||
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| highlight.css('top', top + (visible ? offset : -offset)); | ||
| return; | ||
| } | ||
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| highlight.css('display', visible ? 'block' : 'none'); | ||
| return; | ||
| } | ||
| }); | ||
|
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| function getLineHeight(highlights) { | ||
| var highlight = highlights.eq(0); | ||
| var height = parseFloat(highlight.css('height').slice(0, -2)); | ||
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| var range = highlight.attr('data-range').split('-').map(function(value) { | ||
| return parseInt(value); | ||
| }); | ||
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| if (range.length === 1) { | ||
| return height; | ||
| } | ||
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| return height / (range[1] - range[0] + 1); | ||
| } | ||
| } | ||
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| function collapseLines(pre, config, hasLineNumbers) { | ||
| var inserts = []; | ||
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| var ranges = config.split(','); | ||
| for (var i = 0; i < ranges.length; i++) { | ||
| var range = ranges[i]; | ||
| var parts = range.split('-'); | ||
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| var wrapper = '<div class="collapse collapsed" data-index="' + i + '" data-range="' + range + '">'; | ||
| inserts.push([ | ||
| +parts[0], | ||
| wrapper + '<div class="collapse-code">', | ||
| wrapper + '<div class="collapse-lines">' | ||
| ]); | ||
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| inserts.push([ | ||
| +parts[1] + 1, | ||
| '</div></div>', | ||
| '</div></div>' | ||
| ]); | ||
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| adjustHighlights(pre, range, false); | ||
| } | ||
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| inserts.sort(function (a, b) { | ||
| return b[0] - a[0]; | ||
| }); | ||
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| var codeContainer = pre.children[0]; | ||
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| var numbersContainer = null; | ||
| var numbers = null; | ||
| if (hasLineNumbers) { | ||
| numbersContainer = codeContainer.lastChild; | ||
| numbersContainer.remove(); | ||
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| numbers = numbersContainer.innerHTML.split('<span></span>'); | ||
| } | ||
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| var code = codeContainer.innerHTML.split('\n'); | ||
| code = code.map(function(line, index) { | ||
| if (index === code.length - 1) { | ||
| return line; | ||
| } | ||
|
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| return line + '\n'; | ||
| }); | ||
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| for (var i = 0; i < inserts.length; i++) { | ||
| var line = Math.min(code.length - 1, inserts[i][0] - 1); | ||
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| code.splice(line, 0, inserts[i][1]); | ||
| numbers[line] += inserts[i][2]; | ||
| } | ||
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| codeContainer.innerHTML = code.join(''); | ||
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| if (hasLineNumbers) { | ||
| numbersContainer.innerHTML = numbers.join('<span></span>'); | ||
| codeContainer.appendChild(numbersContainer); | ||
| } | ||
| } | ||
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| Prism.hooks.add('complete', function completeHook(env) { | ||
| var pre = env.element.parentNode; | ||
| var config = pre && pre.getAttribute('data-collapse'); | ||
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| if (!pre || !config || !/pre/i.test(pre.nodeName)) { | ||
| return; | ||
| } | ||
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| var hasLineNumbers = Prism.plugins.lineNumbers; | ||
| var isLineNumbersLoaded = env.plugins && env.plugins.lineNumbers; | ||
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| if (hasClass(pre, 'line-numbers') && hasLineNumbers && !isLineNumbersLoaded) { | ||
| Prism.hooks.add('line-numbers', completeHook); | ||
| } else { | ||
| collapseLines(pre, config, hasLineNumbers); | ||
| } | ||
| }); | ||
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| $('body').on('click', 'pre code .collapse.collapsed', function() { | ||
| var collapse = $(this); | ||
| var pre = collapse.closest('pre'); | ||
| var code = collapse.closest('code'); | ||
| var index = collapse.attr('data-index'); | ||
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| code | ||
| .find('.collapse[data-index=' + index + ']') | ||
| .removeClass('collapsed') | ||
| ; | ||
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| adjustHighlights(pre, collapse.attr('data-range'), true); | ||
| }); |
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generally w/ steal, you don't include the
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fixed