| 123456789101112131415161718192021222324252627282930313233343536373839404142434445464748495051525354555657585960616263646566676869707172 | // 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";  var WRAP_CLASS = "CodeMirror-activeline";  var BACK_CLASS = "CodeMirror-activeline-background";  var GUTT_CLASS = "CodeMirror-activeline-gutter";  CodeMirror.defineOption("styleActiveLine", false, function(cm, val, old) {    var prev = old == CodeMirror.Init ? false : old;    if (val == prev) return    if (prev) {      cm.off("beforeSelectionChange", selectionChange);      clearActiveLines(cm);      delete cm.state.activeLines;    }    if (val) {      cm.state.activeLines = [];      updateActiveLines(cm, cm.listSelections());      cm.on("beforeSelectionChange", selectionChange);    }  });  function clearActiveLines(cm) {    for (var i = 0; i < cm.state.activeLines.length; i++) {      cm.removeLineClass(cm.state.activeLines[i], "wrap", WRAP_CLASS);      cm.removeLineClass(cm.state.activeLines[i], "background", BACK_CLASS);      cm.removeLineClass(cm.state.activeLines[i], "gutter", GUTT_CLASS);    }  }  function sameArray(a, b) {    if (a.length != b.length) return false;    for (var i = 0; i < a.length; i++)      if (a[i] != b[i]) return false;    return true;  }  function updateActiveLines(cm, ranges) {    var active = [];    for (var i = 0; i < ranges.length; i++) {      var range = ranges[i];      var option = cm.getOption("styleActiveLine");      if (typeof option == "object" && option.nonEmpty ? range.anchor.line != range.head.line : !range.empty())        continue      var line = cm.getLineHandleVisualStart(range.head.line);      if (active[active.length - 1] != line) active.push(line);    }    if (sameArray(cm.state.activeLines, active)) return;    cm.operation(function() {      clearActiveLines(cm);      for (var i = 0; i < active.length; i++) {        cm.addLineClass(active[i], "wrap", WRAP_CLASS);        cm.addLineClass(active[i], "background", BACK_CLASS);        cm.addLineClass(active[i], "gutter", GUTT_CLASS);      }      cm.state.activeLines = active;    });  }  function selectionChange(cm, sel) {    updateActiveLines(cm, sel.ranges);  }});
 |