DOM把所有的html都转换为节点
整个文档 是一个节点
元素 是节点
元素属性 是节点
元素内容 是节点
注释 也是节点
如本例
通过document.getElementById获取了id=d1的div标签对应的元素节点
然后通过attributes 获取了该节点对应的属性节点
接着通过childNodes获取了内容节点
");
window.frames["iframe_show1173"].document.write(decodeHtml($("textarea#stepcodeTextarea1173").val()));
window.frames["iframe_show1173"].document.close();
$(window.frames["iframe_show1173"]).load(function(){
$("#iframe_show1173").height($("#iframe_show1173").contents().find("body").height()+showittryitheight);
});
$("#iframe_show1173").height($("#iframe_show1173").contents().find("body").height()+showittryitheight);
setTimeout(function(){
},500);
});
<html>
<body>
<div id="d1">hello HTML DOM</div>
</body>
<script>
function p(s){
document.write(s);
document.write("<br>");
}
var div1 = document.getElementById("d1");
p("文档节点"+document);
p("元素"+div1);
p("属性节点"+div1.attributes[0]);
p("内容节点"+div1.childNodes[0]);
</script>
</html>
<html>
<body>
<div id="d1">hello HTML DOM</div>
</body>
<script>
function p(s){
document.write(s);
document.write("<br>");
}
var div1 = document.getElementById("d1");
p("文档节点"+document);
p("元素"+div1);
p("属性节点"+div1.attributes[0]);
p("内容节点"+div1.childNodes[0]);
</script>
</html>
");
window.frames["iframe1173"].document.write(decodeHtml(code1173));
window.frames["iframe1173"].document.close();
//load和下面的非load必需并存,因为如果代码用到了jquery就必须使用load的方式
$(window.frames["iframe1173"]).load(function(){
$("#iframe1173").height($("#iframe1173").contents().find("body").height()+showittryitheight);
});
$("#iframe1173").height($("#iframe1173").contents().find("body").height()+showittryitheight);
alreadyWriteCode1173 = code1173;
$("#rendering1173").hide();
$("#rendered1173").show();
}
var tRereshRetry2DemoPanel1173 = setInterval(rereshRetry2DemoPanel1173,1000);
var binded1173 = false;
$("textarea#stepcodeTextarea1173").keyup(function(){
if(!binded1173){
$(window).bind('beforeunload',function(){
binded1173 = true;
return "xxxx";
});
}
var newCode = $(this).val()
code1173 = newCode;
/*below code is replaced by function rereshRetry2DemoPanel()*/
// if(code1173!=newCode){
// window.frames["iframe1173"].document.write("
");
// window.frames["iframe1173"].document.write(decodeHtml($("textarea#stepcodeTextarea1173").val()));
// window.frames["iframe1173"].document.close();
// $(window.frames["iframe1173"]).load(function(){
// $("#iframe1173").height($("#iframe1173").contents().find("body").height()+showittryitheight);
// });
// code1173 = newCode;
// }
});
$(".tryButton1173").click(function(){
$("#tryDiv1173").show();
$("#stepcodeTextarea1173").focus();
$("#stepcodeTextarea1173").height(200);
$("#iframe1173").height(0);
window.frames["iframe1173"].document.write("
");
window.frames["iframe1173"].document.write(decodeHtml($("textarea#stepcodeTextarea1173").val()));
window.frames["iframe1173"].document.close();
//load和下面的非load必需并存,因为如果代码用到了jquery就必须使用load的方式
$(window.frames["iframe1173"]).load(function(){
$("#iframe1173").height($("#iframe1173").contents().find("body").height()+showittryitheight);
});
$("#iframe1173").height($("#iframe1173").contents().find("body").height()+showittryitheight);
this.scrollIntoView(true);
editor1173.focus();
editor1173.setSize(null, "250");
$("#rendering1173").hide();
$("#rendered1173").hide();
});
var mixedMode = {
name: "htmlmixed",
scriptTypes: [{matches: /\/x-handlebars-template|\/x-mustache/i,
mode: null},
{matches: /(text|application)\/(x-)?vb(a|script)/i,
mode: "vbscript"}]
};
var editor1173 = CodeMirror.fromTextArea(document.getElementById("stepcodeTextarea1173"), {
lineNumbers: true,
styleActiveLine: true,
matchBrackets: true,
mode:"text/html",
theme:"eclipse",
selectionPointer: true,
lineWrapping: true,
extraKeys: {
"Alt-/": "autocomplete",
"Ctrl-F": "findPersistent",
"F8": function(cm) {
cm.setOption("fullScreen", !cm.getOption("fullScreen"));
},
"Esc": function(cm) {
if (cm.getOption("fullScreen")) cm.setOption("fullScreen", false);
}
}
});
editor1173.on("change",function(doc){
if(!binded1173){
$(window).bind('beforeunload',function(){
binded1173 = true;
return "xxxx";
});
}
var newCode = doc.getValue();
code1173 = newCode;
$("textarea#stepcodeTextarea1173").val(newCode);
if(alreadyWriteCode1173!=code1173){
lastModifedTime1173 = new Date().getTime();
$("#rendering1173").show();
$("#rendered1173").hide();
}
// alert(doc.getValue());
});
$(".CodeMirror").addClass("form-control");
// var editor1173 = CodeMirror.fromTextArea(, {
// lineNumbers: true,
// styleActiveLine: true,
// matchBrackets: true,
// theme:"eclipse",
// });
editor1173.on("change",function(doc){
// alert(doc.getValue());
});
$("#tryDiv1173").hide();
});
$("div.codemirrorTips span").addClass("glyphicon glyphicon-asterisk");
1. 双击选中单词
2. 三击选中整行
3. CTRL+F 查找
4. F8 全屏编辑,再次点击恢复
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