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editor.js
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/**
* 2014-06-26 by Lanyuechen
*/
var myEditor = function(m){
var container = ''; //编辑器容器
var toolbar = ''; //工具栏容器
var content = ''; //编辑区容器
var editor = ''; //编辑器id（iframe）
var files = {}; //用于保存即将上传的文件数组
//默认工具栏
var tools = [
{"bold":"B","italic":"I","underline":"U","strikethrough":"S"},
{"fontname":"Fn","fontsize":"Fs","fontcolor":"Fc","backcolor":"Bc"},
{"justifyleft":"L","justifycenter":"C","JustifyRight":"R"},
{"indent":"Li","outdent":"Ri"},
{"insertunorderedlist":"ul","insertorderedlist":"ol"},
{"createlink":"L","unlink":"uL"},
{"undo":"U","redo":"R"},
{"insertimage":"pic"},
{"code":"<>","submit":"ok"}
];
//默认字体
var fontNames = [
'Serif', 'Sans', 'Arial', 'Arial Black', 'Courier', 'Courier New',
'Comic Sans MS', 'Helvetica', 'Impact', 'Lucida Grande', 'Lucida Sans',
'Tahoma', 'Times', 'Times New Roman', 'Verdana'
];
//默认字体颜色，如果没有设置背景颜色，则背景颜色与字体颜色相同
var fontColors = [
'aqua', 'black', 'blue', 'fuchsia', 'gray', 'green', 'lime', 'maroon',
'navy', 'olive', 'orange', 'purple', 'red', 'silver', 'teal', 'white', 'yellow'
];
var backColors = fontColors;
//默认字体大小
var fontSizes = {"1":"特小","2":"偏小","3":"适中","4":"偏大","5":"特大"};
var init = function() {
initData();
initClass();
initEditor();
initToolbar();
addEvent();
init_upload();
};
var initData = function() {
container = document.getElementById(m.container);
toolbar = document.getElementById(m.toolbar);
content = document.getElementById(m.content);
editor = document.getElementById(m.editor);
tools = m.tools ? m.tools : tools;
fontNames = m.fontnames ? m.fontnames : fontNames;
fontSizes = m.fontSizes ? m.fontSizes : fontSizes;
fontColors = m.fontColors ? m.fontColors : fontColors;
backColors = m.backColors ? m.backColors : fontColors;
};
var initClass = function() {
container.setAttribute('class', 'E-container');
content.setAttribute('class', 'E-content');
toolbar.setAttribute('class', 'E-toolbar');
editor.setAttribute('class', 'E-editor');
}
//初始化编辑器
var initEditor = function() {
var doc = editor.contentDocument || editor.contentWindow.document; // W3C || IE
doc.designMode="on";
doc.contentEditable= true;
var str = '<html><head><style>body{ margin:3px; word-wrap:break-word; word-break: break-all; }</style></head><body>start input word...</body></html>';
doc.open();
doc.write(str);
doc.close();
};
//初始化工具栏
var initToolbar = function() {
var html ='';
for(var i=0; i<tools.length; i++) {
html += '<div class="E-group">';
for(k in tools[i]) {
html += fmtTool(k, tools[i][k]);
}
html += '</div>';
}
html += '<div style="clear:both;"></div>';
toolbar.innerHTML = html;
};
var fmtTool = function(tool, name) {
var html = '<div class="E-dropdown"><a class="E-drop" act="'+tool+'" href="javascript:;">'+name+'</a>';
switch(tool) {
case 'fontname':
html += '<ul tar="fontname">' + getFontName() + '</ul></div>';
break;
case 'fontsize':
html += '<ul tar="fontsize">' + getFontSize() + '</ul></div>';
break;
case 'fontcolor':
html += '<ul tar="fontcolor">' + getFontColor() + '</ul></div>';
break;
case 'backcolor':
html += '<ul tar="backcolor">' + getBackColor() + '</ul></div>';
break;
case 'createlink':
html += '<ul tar="createlink" class="E-box"><input class="E-val" type="text" value="http://"><a rec="createlink" arg="E-val" href="javascript:;">确定</a></ul></div>';
break;
case 'insertimage':
html += '<ul tar="insertimage" class="E-box2"><a act="inserturl" href="javascript:;">输入链接</a><a act="insertimage" href="javascript:;">本地上传';
html += '<input id="E-files-upload" type="file" multiple="multiple"/></a></ul>';
html += '<ul tar="inserturl" class="E-box"><input class="E-val" type="text" value="http://"><a rec="insertimage" arg="E-val" href="javascript:;">确定</a></ul></div>';
break;
case 'code':
html = '<a fun="code" href="javascript:;">'+name+'</a>';
break;
case 'submit':
html = '<a fun="submit" href="javascript:;">'+name+'</a>';
break;
default:
html = '<a com="'+tool+'" href="javascript:;">'+name+'</a>';
}
return html;
}
var getFontName = function() {
var html = '';
for(var i=0; i<fontNames.length; i++) {
html += '<li><a href="javascript:;" com="fontname" arg="'+fontNames[i]+'" style="font-family:\''+ fontNames[i] +'\'">'+ fontNames[i] + '</a></li>';
}
return html;
};
var getFontSize = function() {
var html = '';
for(k in fontSizes) {
var height = (k-3)*5+30;
html += '<li><a href="javascript:;" com="fontsize" arg="'+k+'" style="height:'+height+'px;line-height:'+height+'px;"><font size="'+k+'">'+fontSizes[k]+'</font></a></li>';
}
return html;
};
var getFontColor = function() {
var html = '';
for(var i=0; i<fontColors.length; i++) {
html += '<li><a href="javascript:;" com="forecolor" arg="'+fontColors[i]+'" style="color:'+ fontColors[i] +'">'+ fontColors[i] + '</a></li>';
}
return html;
};
var getBackColor = function() {
var html = '';
for(var i=0; i<backColors.length; i++) {
html += '<li><a href="javascript:;" com="backcolor" arg="'+backColors[i]+'" style="background:'+ backColors[i] +'">'+ backColors[i] + '</a></li>';
}
return html;
};
var uploadFile = function(id, file) {
var xhr;
// Uploading - for Firefox, Google Chrome and Safari
xhr = new XMLHttpRequest();
xhr.open("post", "upload.php", true);
// Set appropriate headers
xhr.setRequestHeader("Content-Type", "multipart/form-data");
xhr.setRequestHeader("X-File-Name", file.name);
xhr.setRequestHeader("X-File-Size", file.size);
xhr.setRequestHeader("X-File-Type", file.type);
xhr.setRequestHeader("X-File-Id", id);
// Send the file (doh)
xhr.send(file);
// File uploaded
xhr.onreadystatechange = function(e) {
if (xhr.readyState == 4) {
if (xhr.status == 200) {
var res = xhr.responseText;
console.log(res);
res = eval('('+res+')');
var img = editor.contentWindow.document.getElementById(res.id);
img.setAttribute('src', res.src);
img.removeAttribute('id');
delete(files[res.id]);
} else {
var res = xhr.responseText;
console.log(res);
}
}
};
};
var preview = function(file){
var reader;
if (typeof FileReader !== "undefined" && (/image/i).test(file.type)) {
reader = new FileReader();
reader.onload = (function (evt) {
var src = evt.target.result;
exec('insertimage', src);
var id = new Date().getTime() + '';
id = id.substr(id.length-7, 7);
var img = editor.contentWindow.document.getElementsByTagName('img');
for(k in img){
if(img[k].getAttribute('src') == src){
var img_id = img[k].getAttribute('id');
console.log('img_id='+img_id);
if(img_id && img_id in files){
id = img_id;
}else{
img[k].setAttribute('id',id);
files[id] = file;
break;
}
}
}
});
reader.readAsDataURL(file);
}
};
var init_upload = function() {
var filesUpload = document.getElementById("E-files-upload");
filesUpload.addEventListener("change", function () {
for (var i=0;i<this.files.length;i++) {
preview(this.files[i]);
};
}, false);
};
var exec = function(cmd, arg) {
var win = editor.contentWindow;
win.document.execCommand(cmd, false, arg);
win.focus();
};
var addEvent = function() {
var a = toolbar.getElementsByTagName('a');
for(var i=0; i<a.length; i++){
if(a[i].getAttribute('com')){
a[i].onclick = function(){
exec(this.getAttribute('com'), this.getAttribute('arg'));
}
}else if(a[i].getAttribute('act')){
a[i].onclick = function(){
var ul = toolbar.getElementsByTagName('ul');
for(var j = 0; j<ul.length; j++){
if(ul[j].getAttribute('tar') === this.getAttribute('act')){
ul[j].style.display = 'block';
}else{
ul[j].style.display = 'none';
}
}
}
}else if(a[i].getAttribute('rec')){
a[i].onclick = function(){
exec(this.getAttribute('rec'), this.previousSibling.value)
}
}else if(a[i].getAttribute('fun')){
a[i].onclick = function(){
eval(this.getAttribute('fun')+'()');
}
}
}
editor.contentWindow.onfocus = function(){
var ul = toolbar.getElementsByTagName('ul');
for(var j = 0; j<ul.length; j++){
ul[j].style.display = 'none';
}
}
};
var code = function() {
var doc = editor.contentDocument || editor.contentWindow.document; // W3C || IE
var html = doc.body.innerHTML;
if(html.substr(0,5) !== '<xmp>'){
html = '<xmp>' + html + '</xmp>';
}else{
html = html.substring(5,html.length - 6);
}
doc.body.innerHTML = html;
};
var submit = function() {
var img = editor.contentWindow.document.getElementsByTagName('img');
for(var i = 0; i<img.length; i++){
var id = img[i].getAttribute('id');
console.log('id='+id);
if(id in files){
uploadFile(id, files[id]);
}
}
};
init();
};