extjs自带的HtmlEditor的控件功能很有限，无法与ckeditor相比，比如上传图片就是一个大问题，但是有关其扩展的一些plugin已经比较强大了，今天用了下，很不错，记录一下。
首先下载一个插件：http://www.vinylfox.com/category/extjs/plugins/(最好用svn下其源码，在code.google中下载)下载后如下图结构
将相应的图片和css放入ext的resources中，当然调用的话直接用plugin的方式,也可以封装一下。
Ext.ux.form.HtmlEditorWithPlugins = Ext.extend(Ext.form.HtmlEditor, {
initComponent: function() {
this.plugins = [
new Ext.ux.form.HtmlEditor.Link(),
new Ext.ux.form.HtmlEditor.Divider(),
new Ext.ux.form.HtmlEditor.Word(),
//new Ext.ux.form.HtmlEditor.FindAndReplace(),
new Ext.ux.form.HtmlEditor.UndoRedo(),
new Ext.ux.form.HtmlEditor.Divider(),
new Ext.ux.form.HtmlEditor.Image(),
new Ext.ux.form.HtmlEditor.Table(),
new Ext.ux.form.HtmlEditor.HR(),
new Ext.ux.form.HtmlEditor.SpecialCharacters(),
new Ext.ux.form.HtmlEditor.IndentOutdent(),
new Ext.ux.form.HtmlEditor.SubSuperScript(),
new Ext.ux.form.HtmlEditor.RemoveFormat()
];
Ext.ux.form.HtmlEditorWithPlugins.superclass.initComponent.call(this);
}
});
Ext.reg(\'HtmlEditorWithPlugins\', Ext.ux.form.HtmlEditorWithPlugins);
那么调用的时候就比较明了了，我还是给个代码。
{
xtype : "HtmlEditorWithPlugins",
autoScroll : true,
id:"content",
name :"content",
boxMinWidth:500,
fieldLabel : "内容",
autoShow:true,
anchor : "100%"
}
是的，这样就完了，完成后图如下。
完事后你会发现，image的插入是个空的功能，这个是因为这个方法是要扩展的，所以我们主要看下怎么扩展。
/**
* @author Shea Frederick - http://www.vinylfox.com
* @class Ext.ux.form.HtmlEditor.Image
* @extends Ext.util.Observable
* <p>A plugin that creates an image button in the HtmlEditor toolbar for inserting an image. The method to select an image must be defined by overriding the selectImage method. Supports resizing of the image after insertion.</p>
* <p>The selectImage implementation must call insertImage after the user has selected an image, passing it a simple image object like the one below.</p>
* <pre>
* var img = {
* Width: 100,
* Height: 100,
* ID: 123,
* Title: \'My Image\'
* };
* </pre>
*/
Ext.ux.form.HtmlEditor.Image = Ext.extend(Ext.util.Observable, {
// Image language text
langTitle: \'Insert Image\',
urlSizeVars: [\'width\',\'height\'],
basePath: getBaseUrl(),
init: function(cmp){
this.cmp = cmp;
this.cmp.on(\'render\', this.onRender, this);
this.cmp.on(\'initialize\', this.onInit, this, {delay:100, single: true});
},
onEditorMouseUp : function(e){
Ext.get(e.getTarget()).select(\'img\').each(function(el){
var w = el.getAttribute(\'width\'), h = el.getAttribute(\'height\'), src = el.getAttribute(\'src\')+\' \';
src = src.replace(new RegExp(this.urlSizeVars[0]+\'=[0-9]{1,5}([&| ])\'), this.urlSizeVars[0]+\'=\'+w+\'$1\');
src = src.replace(new RegExp(this.urlSizeVars[1]+\'=[0-9]{1,5}([&| ])\'), this.urlSizeVars[1]+\'=\'+h+\'$1\');
el.set({src:src.replace(/\s+$/,"")});
}, this);
},
onInit: function(){
Ext.EventManager.on(this.cmp.getDoc(), {
\'mouseup\': this.onEditorMouseUp,
buffer: 100,
scope: this
});
},
onRender: function() {
var btn = this.cmp.getToolbar().addButton({
iconCls: \'x-edit-image\',
handler: this.selectImage,
scope: this,
tooltip: {
title: this.langTitle
},
overflowText: this.langTitle
});
},
selectImage: Ext.emptyFn,
insertImage: function(img) {
this.cmp.insertAtCursor(\'<img src="\'+this.basePath+\'?\'+this.urlSizeVars[0]+\'=\'+img.Width+\'&\'+this.urlSizeVars[1]+\'=\'+img.Height+\'&id=\'+img.ID+\'" title="\'+img.Name+\'" alt="\'+img.Name+\'">\');
}
});
Ext.override(Ext.ux.form.HtmlEditor.Image,{selectImage:function() {
cmpCusor =this.cmp;
var imgform = new Ext.FormPanel({
region : \'center\',
labelWidth : 55,
frame : true,
bodyStyle : \'padding:5px 5px 0\',
autoScroll : true,
border : false,
fileUpload : true,
items : [{
xtype : \'textfield\',
fieldLabel : \'选择文件\',
name : \'userfile\',
inputType : \'file\',
allowBlank : false,
blankText : \'文件不能为空\',
height : 25,
anchor : \'90%\'
}],
buttons : [{
text : \'上传\',
type : \'submit\',
handler : function() {
if (!imgform.form.isValid()) {return;}
imgform.form.submit({
waitMsg : \'正在上传\',
url : getBaseUrl()+\'/admin/upload/imageupload\',
success : function(form, action) {
var element = document.createElement("img");
element.src = getBaseUrl()+\'/\'+action.result.fileURL;
if (Ext.isIE) {
cmpCusor.insertAtCursor(element.outerHTML);
} else {
var selection = cmpCusor.win.getSelection();
if (!selection.isCollapsed) {
selection.deleteFromDocument();
}
selection.getRangeAt(0).insertNode(element);
}
win.hide();
},
failure : function(form, action) {
form.reset();
if (action.failureType == Ext.form.Action.SERVER_INVALID)
Ext.MessageBox.alert(\'警告\',"失败");
}
});
}
}, {
text : \'关闭\',
type : \'submit\',
handler : function() {
win.close(this);
}
}]
});
var win = new Ext.Window({
title : "上传图片",
width : 300,
height : 200,
modal : true,
border : false,
iconCls : "picture.png",
layout : "fit",
items : imgform
});
win.show();
}});
这个方法我上网查到的，但是要封闭到插件里，所以做了些改动，没有按原来的直接扩展HtmlEditor的方式，而是用插件的方式。
这样就完成了,效果如上图。