/**
@Name：layui.layedit 富文本编辑器
@Author：贤心
@License：MIT
*/
layui.define(['layer', 'form'], function(exports){
"use strict";
var $ = layui.$
,layer = layui.layer
,form = layui.form
,hint = layui.hint()
,device = layui.device()
,MOD_NAME = 'layedit', THIS = 'layui-this', SHOW = 'layui-show', ABLED = 'layui-disabled'
,Edit = function(){
var that = this;
that.index = 0;
//全局配置
that.config = {
//默认工具bar
tool: [
'strong', 'italic', 'underline', 'del'
,'|'
,'left', 'center', 'right'
,'|'
,'link', 'unlink', 'face', 'image'
]
,hideTool: []
,height: 280 //默认高
};
};
//全局设置
Edit.prototype.set = function(options){
var that = this;
$.extend(true, that.config, options);
return that;
};
//事件监听
Edit.prototype.on = function(events, callback){
return layui.onevent(MOD_NAME, events, callback);
};
//建立编辑器
Edit.prototype.build = function(id, settings){
settings = settings || {};
var that = this
,config = that.config
,ELEM = 'layui-layedit', textArea = $(typeof(id)=='string'?'#'+id:id)
,name = 'LAY_layedit_'+ (++that.index)
,haveBuild = textArea.next('.'+ELEM)
,set = $.extend({}, config, settings)
,tool = function(){
var node = [], hideTools = {};
layui.each(set.hideTool, function(_, item){
hideTools[item] = true;
});
layui.each(set.tool, function(_, item){
if(tools[item] && !hideTools[item]){
node.push(tools[item]);
}
});
return node.join('');
}()
,editor = $(['<div class="'+ ELEM +'">'
,'<div class="layui-unselect layui-layedit-tool">'+ tool +'</div>'
,'<div class="layui-layedit-iframe">'
,'<iframe id="'+ name +'" name="'+ name +'" textarea="'+ id +'" frameborder="0"></iframe>'
,'</div>'
,'</div>'].join(''))
//编辑器不兼容ie8以下
if(device.ie && device.ie < 8){
return textArea.removeClass('layui-hide').addClass(SHOW);
}
haveBuild[0] && (haveBuild.remove());
setIframe.call(that, editor, textArea[0], set)
textArea.addClass('layui-hide').after(editor);
return that.index;
};
//获得编辑器中内容
Edit.prototype.getContent = function(index){
var iframeWin = getWin(index);
if(!iframeWin[0]) return;
return toLower(iframeWin[0].document.body.innerHTML);
};
//获得编辑器中纯文本内容
Edit.prototype.getText = function(index){
var iframeWin = getWin(index);
if(!iframeWin[0]) return;
return $(iframeWin[0].document.body).text();
};
/**
* 设置编辑器内容
* @param {[type]} index 编辑器索引
* @param {[type]} content 要设置的内容
* @param {[type]} flag 是否追加模式
*/
Edit.prototype.setContent = function(index, content, flag){
var iframeWin = getWin(index);
if(!iframeWin[0]) return;
if(flag){
$(iframeWin[0].document.body).append(content)
}else{
$(iframeWin[0].document.body).html(content)
};
layedit.sync(index)
};
//将编辑器内容同步到textarea（一般用于异步提交时）
Edit.prototype.sync = function(index){
var iframeWin = getWin(index);
if(!iframeWin[0]) return;
var textarea = $('#'+iframeWin[1].attr('textarea'));
textarea.val(toLower(iframeWin[0].document.body.innerHTML));
};
//获取编辑器选中内容
Edit.prototype.getSelection = function(index){
var iframeWin = getWin(index);
if(!iframeWin[0]) return;
var range = Range(iframeWin[0].document);
return document.selection ? range.text : range.toString();
};
//iframe初始化
var setIframe = function(editor, textArea, set){
var that = this, iframe = editor.find('iframe');
iframe.css({
height: set.height
}).on('load', function(){
var conts = iframe.contents()
,iframeWin = iframe.prop('contentWindow')
,head = conts.find('head')
,style = $(['<style>'
,'*{margin: 0; padding: 0;}'
,'body{padding: 10px; line-height: 20px; overflow-x: hidden; word-wrap: break-word; font: 14px Helvetica Neue,Helvetica,PingFang SC,Microsoft YaHei,Tahoma,Arial,sans-serif; -webkit-box-sizing: border-box !important; -moz-box-sizing: border-box !important; box-sizing: border-box !important;}'
,'a{color:#01AAED; text-decoration:none;}a:hover{color:#c00}'
,'p{margin-bottom: 10px;}'
,'img{display: inline-block; border: none; vertical-align: middle;}'
,'pre{margin: 10px 0; padding: 10px; line-height: 20px; border: 1px solid #ddd; border-left-width: 6px; background-color: #F2F2F2; color: #333; font-family: Courier New; font-size: 12px;}'
,'</style>'].join(''))
,body = conts.find('body');
head.append(style);
body.attr('contenteditable', 'true').css({
'min-height': set.height
}).html(textArea.value||'');
hotkey.apply(that, [iframeWin, iframe, textArea, set]); //快捷键处理
toolActive.call(that, iframeWin, editor, set); //触发工具
});
}
//获得iframe窗口对象
,getWin = function(index){
var iframe = $('#LAY_layedit_'+ index)
,iframeWin = iframe.prop('contentWindow');
return [iframeWin, iframe];
}
//IE8下将标签处理成小写
,toLower = function(html){
if(device.ie == 8){
html = html.replace(/<.+>/g, function(str){
return str.toLowerCase();
});
}
return html;
}
//快捷键处理
,hotkey = function(iframeWin, iframe, textArea, set){
var iframeDOM = iframeWin.document, body = $(iframeDOM.body);
body.on('keydown', function(e){
var keycode = e.keyCode;
//处理回车
if(keycode === 13){
var range = Range(iframeDOM);
var container = getContainer(range)
,parentNode = container.parentNode;
if(parentNode.tagName.toLowerCase() === 'pre'){
if(e.shiftKey) return
layer.msg('请暂时用shift+enter');
return false;
}
iframeDOM.execCommand('formatBlock', false, '<p>');
}
});
//给textarea同步内容
$(textArea).parents('form').on('submit', function(){
var html = body.html();
//IE8下将标签处理成小写
if(device.ie == 8){
html = html.replace(/<.+>/g, function(str){
return str.toLowerCase();
});
}
textArea.value = html;
});
//处理粘贴
body.on('paste', function(e){
iframeDOM.execCommand('formatBlock', false, '<p>');
setTimeout(function(){
filter.call(iframeWin, body);
textArea.value = body.html();
}, 100);
});
}
//标签过滤
,filter = function(body){
var iframeWin = this
,iframeDOM = iframeWin.document;
//清除影响版面的css属性
body.find('*[style]').each(function(){
var textAlign = this.style.textAlign;
this.removeAttribute('style');
$(this).css({
'text-align': textAlign || ''
})
});
//修饰表格
body.find('table').addClass('layui-table');
//移除不安全的标签
body.find('script,link').remove();
}
//Range对象兼容性处理
,Range = function(iframeDOM){
return iframeDOM.selection
? iframeDOM.selection.createRange()
: iframeDOM.getSelection().getRangeAt(0);
}
//当前Range对象的endContainer兼容性处理
,getContainer = function(range){
return range.endContainer || range.parentElement().childNodes[0]
}
//在选区插入内联元素
,insertInline = function(tagName, attr, range){
var iframeDOM = this.document
,elem = document.createElement(tagName)
for(var key in attr){
elem.setAttribute(key, attr[key]);
}
elem.removeAttribute('text');
if(iframeDOM.selection){ //IE
var text = range.text || attr.text;
if(tagName === 'a' && !text) return;
if(text){
elem.innerHTML = text;
}
range.pasteHTML($(elem).prop('outerHTML'));
range.select();
} else { //非IE
var text = range.toString() || attr.text;
if(tagName === 'a' && !text) return;
if(text){
elem.innerHTML = text;
}
range.deleteContents();
range.insertNode(elem);
}
}
//工具选中
,toolCheck = function(tools, othis){
var iframeDOM = this.document
,CHECK = 'layedit-tool-active'
,container = getContainer(Range(iframeDOM))
,item = function(type){
return tools.find('.layedit-tool-'+type)
}
if(othis){
othis[othis.hasClass(CHECK) ? 'removeClass' : 'addClass'](CHECK);
}
tools.find('>i').removeClass(CHECK);
item('unlink').addClass(ABLED);
$(container).parents().each(function(){
var tagName = this.tagName.toLowerCase()
,textAlign = this.style.textAlign;
//文字
if(tagName === 'b' || tagName === 'strong'){
item('b').addClass(CHECK)
}
if(tagName === 'i' || tagName === 'em'){
item('i').addClass(CHECK)
}
if(tagName === 'u'){
item('u').addClass(CHECK)
}
if(tagName === 'strike'){
item('d').addClass(CHECK)
}
//对齐
if(tagName === 'p'){
if(textAlign === 'center'){
item('center').addClass(CHECK);
} else if(textAlign === 'right'){
item('right').addClass(CHECK);
} else {
item('left').addClass(CHECK);
}
}
//超链接
if(tagName === 'a'){
item('link').addClass(CHECK);
item('unlink').removeClass(ABLED);
}
});
}
//触发工具
,toolActive = function(iframeWin, editor, set){
var iframeDOM = iframeWin.document
,body = $(iframeDOM.body)
,toolEvent = {
//超链接
link: function(range){
var container = getContainer(range)
,parentNode = $(container).parent();
link.call(body, {
href: parentNode.attr('href')
,target: parentNode.attr('target')
}, function(field){
var parent = parentNode[0];
if(parent.tagName === 'A'){
parent.href = field.url;
} else {
insertInline.call(iframeWin, 'a', {
target: field.target
,href: field.url
,text: field.url
}, range);
}
});
}
//清除超链接
,unlink: function(range){
iframeDOM.execCommand('unlink');
}
//表情
,face: function(range){
face.call(this, function(img){
insertInline.call(iframeWin, 'img', {
src: img.src
,alt: img.alt
}, range);
});
}
//图片
,image: function(range){
var that = this;
layui.use('upload', function(upload){
var uploadImage = set.uploadImage || {};
upload.render({
url: uploadImage.url
,method: uploadImage.type
,elem: $(that).find('input')[0]
,done: function(res){
if(res.code == 0){
res.data = res.data || {};
insertInline.call(iframeWin, 'img', {
src: res.data.src
,alt: res.data.title
}, range);
} else {
layer.msg(res.msg||'上传失败');
}
}
});
});
}
//插入代码
,code: function(range){
code.call(body, function(pre){
insertInline.call(iframeWin, 'pre', {
text: pre.code
,'lay-lang': pre.lang
}, range);
});
}
//帮助
,help: function(){
layer.open({
type: 2
,title: '帮助'
,area: ['600px', '380px']
,shadeClose: true
,shade: 0.1
,skin: 'layui-layer-msg'
,content: ['http://www.layui.com/about/layedit/help.html', 'no']
});
}
}
,tools = editor.find('.layui-layedit-tool')
,click = function(){
var othis = $(this)
,events = othis.attr('layedit-event')
,command = othis.attr('lay-command');
if(othis.hasClass(ABLED)) return;
body.focus();
var range = Range(iframeDOM)
,container = range.commonAncestorContainer
if(command){
iframeDOM.execCommand(command);
if(/justifyLeft|justifyCenter|justifyRight/.test(command)){
iframeDOM.execCommand('formatBlock', false, '<p>');
}
setTimeout(function(){
body.focus();
}, 10);
} else {
toolEvent[events] && toolEvent[events].call(this, range);
}
toolCheck.call(iframeWin, tools, othis);
}
,isClick = /image/
tools.find('>i').on('mousedown', function(){
var othis = $(this)
,events = othis.attr('layedit-event');
if(isClick.test(events)) return;
click.call(this)
}).on('click', function(){
var othis = $(this)
,events = othis.attr('layedit-event');
if(!isClick.test(events)) return;
click.call(this)
});
//触发内容区域
body.on('click', function(){
toolCheck.call(iframeWin, tools);
layer.close(face.index);
});
}
//超链接面板
,link = function(options, callback){
var body = this, index = layer.open({
type: 1
,id: 'LAY_layedit_link'
,area: '350px'
,shade: 0.05
,shadeClose: true
,moveType: 1
,title: '超链接'
,skin: 'layui-layer-msg'
,content: ['<ul class="layui-form" style="margin: 15px;">'
,'<li class="layui-form-item">'
,'<label class="layui-form-label" style="width: 60px;">URL</label>'
,'<div class="layui-input-block" style="margin-left: 90px">'
,'<input name="url" lay-verify="url" value="'+ (options.href||'') +'" autofocus="true" autocomplete="off" class="layui-input">'
,'</div>'
,'</li>'
,'<li class="layui-form-item">'
,'<label class="layui-form-label" style="width: 60px;">打开方式</label>'
,'<div class="layui-input-block" style="margin-left: 90px">'
,'<input type="radio" name="target" value="_self" class="layui-input" title="当前窗口"'
+ ((options.target==='_self' || !options.target) ? 'checked' : '') +'>'
,'<input type="radio" name="target" value="_blank" class="layui-input" title="新窗口" '
+ (options.target==='_blank' ? 'checked' : '') +'>'
,'</div>'
,'</li>'
,'<li class="layui-form-item" style="text-align: center;">'
,'<button type="button" lay-submit lay-filter="layedit-link-yes" class="layui-btn"> 确定 </button>'
,'<button style="margin-left: 20px;" type="button" class="layui-btn layui-btn-primary"> 取消 </button>'
,'</li>'
,'</ul>'].join('')
,success: function(layero, index){
var eventFilter = 'submit(layedit-link-yes)';
form.render('radio');
layero.find('.layui-btn-primary').on('click', function(){
layer.close(index);
body.focus();
});
form.on(eventFilter, function(data){
layer.close(link.index);
callback && callback(data.field);
});
}
});
link.index = index;
}
//表情面板
,face = function(callback){
//表情库
var faces = function(){
var alt = ["[微笑]", "[嘻嘻]", "[哈哈]", "[可爱]", "[可怜]", "[挖鼻]", "[吃惊]", "[害羞]", "[挤眼]", "[闭嘴]", "[鄙视]", "[爱你]", "[泪]", "[偷笑]", "[亲亲]", "[生病]", "[太开心]", "[白眼]", "[右哼哼]", "[左哼哼]", "[嘘]", "[衰]", "[委屈]", "[吐]", "[哈欠]", "[抱抱]", "[怒]", "[疑问]", "[馋嘴]", "[拜拜]", "[思考]", "[汗]", "[困]", "[睡]", "[钱]", "[失望]", "[酷]", "[色]", "[哼]", "[鼓掌]", "[晕]", "[悲伤]", "[抓狂]", "[黑线]", "[阴险]", "[怒骂]", "[互粉]", "[心]", "[伤心]", "[猪头]", "[熊猫]", "[兔子]", "[ok]", "[耶]", "[good]", "[NO]", "[赞]", "[来]", "[弱]", "[草泥马]", "[神马]", "[囧]", "[浮云]", "[给力]", "[围观]", "[威武]", "[奥特曼]", "[礼物]", "[钟]", "[话筒]", "[蜡烛]", "[蛋糕]"], arr = {};
layui.each(alt, function(index, item){
arr[item] = layui.cache.dir + 'images/face/'+ index + '.gif';
});
return arr;
}();
face.hide = face.hide || function(e){
if($(e.target).attr('layedit-event') !== 'face'){
layer.close(face.index);
}
}
return face.index = layer.tips(function(){
var content = [];
layui.each(faces, function(key, item){
content.push('<li title="'+ key +'"><img src="'+ item +'" alt="'+ key +'"></li>');
});
return '<ul class="layui-clear">' + content.join('') + '</ul>';
}(), this, {
tips: 1
,time: 0
,skin: 'layui-box layui-util-face'
,maxWidth: 500
,success: function(layero, index){
layero.css({
marginTop: -4
,marginLeft: -10
}).find('.layui-clear>li').on('click', function(){
callback && callback({
src: faces[this.title]
,alt: this.title
});
layer.close(index);
});
$(document).off('click', face.hide).on('click', face.hide);
}
});
}
//插入代码面板
,code = function(callback){
var body = this, index = layer.open({
type: 1
,id: 'LAY_layedit_code'
,area: '550px'
,shade: 0.05
,shadeClose: true
,moveType: 1
,title: '插入代码'
,skin: 'layui-layer-msg'
,content: ['<ul class="layui-form layui-form-pane" style="margin: 15px;">'
,'<li class="layui-form-item">'
,'<label class="layui-form-label">请选择语言</label>'
,'<div class="layui-input-block">'
,'<select name="lang">'
,'<option value="JavaScript">JavaScript</option>'
,'<option value="HTML">HTML</option>'
,'<option value="CSS">CSS</option>'
,'<option value="Java">Java</option>'
,'<option value="PHP">PHP</option>'
,'<option value="C#">C#</option>'
,'<option value="Python">Python</option>'
,'<option value="Ruby">Ruby</option>'
,'<option value="Go">Go</option>'
,'</select>'
,'</div>'
,'</li>'
,'<li class="layui-form-item layui-form-text">'
,'<label class="layui-form-label">代码</label>'
,'<div class="layui-input-block">'
,'<textarea name="code" lay-verify="required" autofocus="true" class="layui-textarea" style="height: 200px;"></textarea>'
,'</div>'
,'</li>'
,'<li class="layui-form-item" style="text-align: center;">'
,'<button type="button" lay-submit lay-filter="layedit-code-yes" class="layui-btn"> 确定 </button>'
,'<button style="margin-left: 20px;" type="button" class="layui-btn layui-btn-primary"> 取消 </button>'
,'</li>'
,'</ul>'].join('')
,success: function(layero, index){
var eventFilter = 'submit(layedit-code-yes)';
form.render('select');
layero.find('.layui-btn-primary').on('click', function(){
layer.close(index);
body.focus();
});
form.on(eventFilter, function(data){
layer.close(code.index);
callback && callback(data.field);
});
}
});
code.index = index;
}
//全部工具
,tools = {
html: '<i class="layui-icon layedit-tool-html" title="HTML源代码" lay-command="html" layedit-event="html""></i><span class="layedit-tool-mid"></span>'
,strong: '<i class="layui-icon layedit-tool-b" title="加粗" lay-command="Bold" layedit-event="b""></i>'
,italic: '<i class="layui-icon layedit-tool-i" title="斜体" lay-command="italic" layedit-event="i""></i>'
,underline: '<i class="layui-icon layedit-tool-u" title="下划线" lay-command="underline" layedit-event="u""></i>'
,del: '<i class="layui-icon layedit-tool-d" title="删除线" lay-command="strikeThrough" layedit-event="d""></i>'
,'|': '<span class="layedit-tool-mid"></span>'
,left: '<i class="layui-icon layedit-tool-left" title="左对齐" lay-command="justifyLeft" layedit-event="left""></i>'
,center: '<i class="layui-icon layedit-tool-center" title="居中对齐" lay-command="justifyCenter" layedit-event="center""></i>'
,right: '<i class="layui-icon layedit-tool-right" title="右对齐" lay-command="justifyRight" layedit-event="right""></i>'
,link: '<i class="layui-icon layedit-tool-link" title="插入链接" layedit-event="link""></i>'
,unlink: '<i class="layui-icon layedit-tool-unlink layui-disabled" title="清除链接" lay-command="unlink" layedit-event="unlink""></i>'
,face: '<i class="layui-icon layedit-tool-face" title="表情" layedit-event="face""></i>'
,image: '<i class="layui-icon layedit-tool-image" title="图片" layedit-event="image"><input type="file" name="file"></i>'
,code: '<i class="layui-icon layedit-tool-code" title="插入代码" layedit-event="code"></i>'
,help: '<i class="layui-icon layedit-tool-help" title="帮助" layedit-event="help"></i>'
}
,edit = new Edit();
exports(MOD_NAME, edit);
});