guochanpingtai/.local-browser/linux-722234/chrome-linux/resources/inspector/cm/active-line.js

(function(mod){if(typeof exports=="object"&&typeof module=="object")
mod(require("../../lib/codemirror"));else if(typeof define=="function"&&define.amd)
define(["../../lib/codemirror"],mod);else
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);}});