（三）CodeMirror - Event

"change" (instance: CodeMirror, changeObj: object)

{

    from,         // object

    to,           // object

    text,         // array 

    removed,      // string,被删除的字符

    origin

}           

 

"beforeChange" (instance: CodeMirror, changeObj: object)

1 // 如编辑行存在init字符，则取消编辑

2 editors.on("beforeChange", function(cm, co) {

3     if(cm.doc.children[0].lines[co.from.line].text.indexOf('init')>-1){

4         co.cancel();

5     }

6 });

"keyHandled" (instance: CodeMirror, name: string, event: Event)

当按下扩展快捷键触发

{

    cm,

    name,      // 扩展键名

    event      // keypress或keydown事件对象

}

 

1 editors.on('keyHandled', function(cm,name,e){

2     console.log(name);

3 });

 "renderLine" (instance: CodeMirror, line: LineHandle, element: Element)

1 // 代码显示

2 editors.on("renderLine", function(cm, line, elt) {

3     var off = CodeMirror.countColumn(line.text, null, cm.getOption("tabSize")) * charWidth;

4      elt.style.textIndent = "-" + off + "px";

5      elt.style.paddingLeft = (basePadding + off) + "px";

6 });