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51 lines
1.9 KiB
51 lines
1.9 KiB
// CodeMirror, copyright (c) by Marijn Haverbeke and others |
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// Distributed under an MIT license: https://codemirror.net/LICENSE |
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(function(mod) { |
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if (typeof exports == "object" && typeof module == "object") // CommonJS |
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mod(require("../../lib/codemirror")); |
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else if (typeof define == "function" && define.amd) // AMD |
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define(["../../lib/codemirror"], mod); |
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else // Plain browser env |
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mod(CodeMirror); |
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})(function(CodeMirror) { |
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"use strict"; |
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CodeMirror.defineOption("rulers", false, function(cm, val) { |
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if (cm.state.rulerDiv) { |
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cm.state.rulerDiv.parentElement.removeChild(cm.state.rulerDiv) |
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cm.state.rulerDiv = null |
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cm.off("refresh", drawRulers) |
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} |
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if (val && val.length) { |
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cm.state.rulerDiv = cm.display.lineSpace.parentElement.insertBefore(document.createElement("div"), cm.display.lineSpace) |
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cm.state.rulerDiv.className = "CodeMirror-rulers" |
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drawRulers(cm) |
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cm.on("refresh", drawRulers) |
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} |
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}); |
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function drawRulers(cm) { |
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cm.state.rulerDiv.textContent = "" |
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var val = cm.getOption("rulers"); |
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var cw = cm.defaultCharWidth(); |
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var left = cm.charCoords(CodeMirror.Pos(cm.firstLine(), 0), "div").left; |
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cm.state.rulerDiv.style.minHeight = (cm.display.scroller.offsetHeight + 30) + "px"; |
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for (var i = 0; i < val.length; i++) { |
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var elt = document.createElement("div"); |
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elt.className = "CodeMirror-ruler"; |
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var col, conf = val[i]; |
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if (typeof conf == "number") { |
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col = conf; |
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} else { |
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col = conf.column; |
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if (conf.className) elt.className += " " + conf.className; |
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if (conf.color) elt.style.borderColor = conf.color; |
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if (conf.lineStyle) elt.style.borderLeftStyle = conf.lineStyle; |
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if (conf.width) elt.style.borderLeftWidth = conf.width; |
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} |
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elt.style.left = (left + col * cw) + "px"; |
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cm.state.rulerDiv.appendChild(elt) |
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} |
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} |
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});
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