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