HTML5编辑器HandyEditor的使用中的一些问题和修改定制
HandyEditor一款十分轻便且使用方便的所见即所得web富文本编辑器，由Catfish(鲶鱼) CMS官方开发，同时适用于移动端和pc端。
上面是其官网上的介绍，同时官网上的使用说明也很简单明了，上手很容易。
基本符合我的预期，已经在项目中使用（使用的是最新版本1.63），实际使用中发现了几个问题，逐个解决后在此做个记录。
一、HandyEditor源码中对于数组的遍历大量使用了for in语句，引入项目后就报错误，但是其示例却没有问题。
经过排除原来是项目中对于数组的prototype做了扩展，添加了一些函数，无奈只能动手修改HandyEditor的源码，修改地方有若干，无法一一记录，后面会附上修改后的源码。
二、插入图片时，如果没有首先点击编辑框内使其获得焦点，则插入图片失败且没有任何提示，已经上传到服务器的图片就此成了孤儿。
调试后发现，HandyEditor没有对于插入点作判断，添加了一个函数做判断（只支持有window.getSelection函数的浏览器），并在HE.image函数中调用；
image:function(){
if(!HE.everFocused()){
if(weui&&weui.alert){
weui.alert('请先选择插入图片的位置！');
}else{
alert('请先选择插入图片的位置！');
}return false;
}
HE.newdiv("image")
}
everFocused:function(){
return window.getSelection?(window.getSelection().anchorNode&&window.getSelection().anchorNode.className=='HandyEditor_editor') : true;
}
三、图片对话框，没有输入图片地址，点击确定插入一个空的img标记，对于这个实在是无话可说，插入个判断语句了事。
imageokEx:function(){var e=document.getElementById("HandyEditor_newdiv_down_image");HE.deldiv();if(!e.value||e.value=='')return false;HE.handy("insertImage",e.value);}
四、添加选择服务器上的现有图片的功能。
实现要点：
1，监听图片对话框建立，在图片对话框中插入自己的浏览按钮
2，用户点击浏览按钮，打开自己的对话框，选择图片
3，用户确认后，图片地址填写到HandyEditor的地址框中。
下面是关键代码
var shImgsDlg=function(cnt){
$(cnt).appendTo($('body'));
new __ImageFilesSelector(function(url){$('input#HandyEditor_newdiv_down_image').val(url);});
}
$('body').on('DOMNodeInserted','div.HandyEditor',function(){
var dlg=$('#HandyEditor_newdiv'),btnUp=$('#HandyEditor_newdiv_down_upload');
if(dlg.length>0){
if(dlg.data('browse_btn_added'))return;
dlg.data('browse_btn_added',1);
if(btnUp.length>0){ var bp = btnUp.parent(), ns=btnUp.get(0).outerHTML.replace('_upload','browse');
$(ns).appendTo(bp).text('选择图片').on('click',function(){
//console.log("to browse images");
$.uitools.ajax({url:'<%=image_files_url%>',dataType:'html',type:'get'},shImgsDlg);
});
}
}
});
这里采用的是服务端绘制技术，返回HTML代码后，添加到body，然后显示对话框，建立其中的js类，传入回调函数，用户确认，调用回调函数填写图片地址。
效果图：
五、未实现的功能：HandyEditor的图片选中后，调整大小，貌似只有IE下可用，希望进一步定制图片对话框，添加大小对齐等一些图片格式设置。
六、最后附上HandyEditor1.63修改版。
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