CodeMirror: Breakpoint Demo in CSS Editor 7
Click the line-number gutter to add or remove 'breakpoints'.
File
lib/codemirror-3.11/demo/marker.htmlView source
<!doctype html> <html> <head> <meta charset="utf-8"> <title>CodeMirror: Breakpoint Demo</title> <link rel="stylesheet" href="../lib/codemirror.css"> <script src="../lib/codemirror.js"></script> <script src="../mode/javascript/javascript.js"></script> <link rel="stylesheet" href="../doc/docs.css"> <style type="text/css"> .breakpoints {width: .8em;} .breakpoint { color: #822; } .CodeMirror {border: 1px solid #aaa;} </style> </head> <body> <h1>CodeMirror: Breakpoint demo</h1> <form><textarea id="code" name="code"> var editor = CodeMirror.fromTextArea(document.getElementById("code"), { lineNumbers: true, gutters: ["CodeMirror-linenumbers", "breakpoints"] }); editor.on("gutterClick", function(cm, n) { var info = cm.lineInfo(n); cm.setGutterMarker(n, "breakpoints", info.markers ? null : makeMarker()); }); function makeMarker() { var marker = document.createElement("div"); marker.innerHTML = "●"; marker.className = "breakpoint"; return marker; } </textarea></form> <p>Click the line-number gutter to add or remove 'breakpoints'.</p> <script> var editor = CodeMirror.fromTextArea(document.getElementById("code"), { lineNumbers: true, gutters: ["CodeMirror-linenumbers", "breakpoints"] }); editor.on("gutterClick", function(cm, n) { var info = cm.lineInfo(n); cm.setGutterMarker(n, "breakpoints", info.gutterMarkers ? null : makeMarker()); }); function makeMarker() { var marker = document.createElement("div"); marker.style.color = "#822"; marker.innerHTML = "●"; return marker; } </script> </body> </html>