/*!
* Ext JS Library 3.0.3
* Copyright(c) 2006-2009 Ext JS, LLC
* licensing@extjs.com
* http://www.extjs.com/license
*/
/**
* @class Ext.form.HtmlEditor
* @extends Ext.form.Field
* Provides a lightweight HTML Editor component. Some toolbar features are not supported by Safari and will be
* automatically hidden when needed. These are noted in the config options where appropriate.
*
The editor's toolbar buttons have tooltips defined in the {@link #buttonTips} property, but they are not
* enabled by default unless the global {@link Ext.QuickTips} singleton is {@link Ext.QuickTips#init initialized}.
*
Note: The focus/blur and validation marking functionality inherited from Ext.form.Field is NOT
* supported by this editor.
*
An Editor is a sensitive component that can't be used in all spots standard fields can be used. Putting an Editor within
* any element that has display set to 'none' can cause problems in Safari and Firefox due to their default iframe reloading bugs.
*
Example usage:
*
// Simple example rendered with default options:
Ext.QuickTips.init(); // enable tooltips
new Ext.form.HtmlEditor({
renderTo: Ext.getBody(),
width: 800,
height: 300
});
// Passed via xtype into a container and with custom options:
Ext.QuickTips.init(); // enable tooltips
new Ext.Panel({
title: 'HTML Editor',
renderTo: Ext.getBody(),
width: 600,
height: 300,
frame: true,
layout: 'fit',
items: {
xtype: 'htmleditor',
enableColors: false,
enableAlignments: false
}
});
* @constructor
* Create a new HtmlEditor
* @param {Object} config
* @xtype htmleditor
*/
Ext.form.HtmlEditor = Ext.extend(Ext.form.Field, {
/**
* @cfg {Boolean} enableFormat Enable the bold, italic and underline buttons (defaults to true)
*/
enableFormat : true,
/**
* @cfg {Boolean} enableFontSize Enable the increase/decrease font size buttons (defaults to true)
*/
enableFontSize : true,
/**
* @cfg {Boolean} enableColors Enable the fore/highlight color buttons (defaults to true)
*/
enableColors : true,
/**
* @cfg {Boolean} enableAlignments Enable the left, center, right alignment buttons (defaults to true)
*/
enableAlignments : true,
/**
* @cfg {Boolean} enableLists Enable the bullet and numbered list buttons. Not available in Safari. (defaults to true)
*/
enableLists : true,
/**
* @cfg {Boolean} enableSourceEdit Enable the switch to source edit button. Not available in Safari. (defaults to true)
*/
enableSourceEdit : true,
/**
* @cfg {Boolean} enableLinks Enable the create link button. Not available in Safari. (defaults to true)
*/
enableLinks : true,
/**
* @cfg {Boolean} enableFont Enable font selection. Not available in Safari. (defaults to true)
*/
enableFont : true,
/**
* @cfg {String} createLinkText The default text for the create link prompt
*/
createLinkText : 'Please enter the URL for the link:',
/**
* @cfg {String} defaultLinkValue The default value for the create link prompt (defaults to http:/ /)
*/
defaultLinkValue : 'http:/'+'/',
/**
* @cfg {Array} fontFamilies An array of available font families
*/
fontFamilies : [
'Arial',
'Courier New',
'Tahoma',
'Times New Roman',
'Verdana'
],
defaultFont: 'tahoma',
/**
* @cfg {String} defaultValue A default value to be put into the editor to resolve focus issues (defaults to (Zero-width space), (Non-breaking space) in Opera and IE6).
*/
defaultValue: (Ext.isOpera || Ext.isIE6) ? ' ' : '',
// private properties
actionMode: 'wrap',
validationEvent : false,
deferHeight: true,
initialized : false,
activated : false,
sourceEditMode : false,
onFocus : Ext.emptyFn,
iframePad:3,
hideMode:'offsets',
defaultAutoCreate : {
tag: "textarea",
style:"width:500px;height:300px;",
autocomplete: "off"
},
// private
initComponent : function(){
this.addEvents(
/**
* @event initialize
* Fires when the editor is fully initialized (including the iframe)
* @param {HtmlEditor} this
*/
'initialize',
/**
* @event activate
* Fires when the editor is first receives the focus. Any insertion must wait
* until after this event.
* @param {HtmlEditor} this
*/
'activate',
/**
* @event beforesync
* Fires before the textarea is updated with content from the editor iframe. Return false
* to cancel the sync.
* @param {HtmlEditor} this
* @param {String} html
*/
'beforesync',
/**
* @event beforepush
* Fires before the iframe editor is updated with content from the textarea. Return false
* to cancel the push.
* @param {HtmlEditor} this
* @param {String} html
*/
'beforepush',
/**
* @event sync
* Fires when the textarea is updated with content from the editor iframe.
* @param {HtmlEditor} this
* @param {String} html
*/
'sync',
/**
* @event push
* Fires when the iframe editor is updated with content from the textarea.
* @param {HtmlEditor} this
* @param {String} html
*/
'push',
/**
* @event editmodechange
* Fires when the editor switches edit modes
* @param {HtmlEditor} this
* @param {Boolean} sourceEdit True if source edit, false if standard editing.
*/
'editmodechange'
)
},
// private
createFontOptions : function(){
var buf = [], fs = this.fontFamilies, ff, lc;
for(var i = 0, len = fs.length; i< len; i++){
ff = fs[i];
lc = ff.toLowerCase();
buf.push(
''
);
}
return buf.join('');
},
/*
* Protected method that will not generally be called directly. It
* is called when the editor creates its toolbar. Override this method if you need to
* add custom toolbar buttons.
* @param {HtmlEditor} editor
*/
createToolbar : function(editor){
var tipsEnabled = Ext.QuickTips && Ext.QuickTips.isEnabled();
function btn(id, toggle, handler){
return {
itemId : id,
cls : 'x-btn-icon',
iconCls: 'x-edit-'+id,
enableToggle:toggle !== false,
scope: editor,
handler:handler||editor.relayBtnCmd,
clickEvent:'mousedown',
tooltip: tipsEnabled ? editor.buttonTips[id] || undefined : undefined,
overflowText: editor.buttonTips[id].title || undefined,
tabIndex:-1
};
}
// build the toolbar
var tb = new Ext.Toolbar({
renderTo:this.wrap.dom.firstChild
});
// stop form submits
this.mon(tb.el, 'click', function(e){
e.preventDefault();
});
if(this.enableFont && !Ext.isSafari2){
this.fontSelect = tb.el.createChild({
tag:'select',
cls:'x-font-select',
html: this.createFontOptions()
});
this.mon(this.fontSelect, 'change', function(){
var font = this.fontSelect.dom.value;
this.relayCmd('fontname', font);
this.deferFocus();
}, this);
tb.add(
this.fontSelect.dom,
'-'
);
}
if(this.enableFormat){
tb.add(
btn('bold'),
btn('italic'),
btn('underline')
);
}
if(this.enableFontSize){
tb.add(
'-',
btn('increasefontsize', false, this.adjustFont),
btn('decreasefontsize', false, this.adjustFont)
);
}
if(this.enableColors){
tb.add(
'-', {
itemId:'forecolor',
cls:'x-btn-icon',
iconCls: 'x-edit-forecolor',
clickEvent:'mousedown',
tooltip: tipsEnabled ? editor.buttonTips.forecolor || undefined : undefined,
tabIndex:-1,
menu : new Ext.menu.ColorMenu({
allowReselect: true,
focus: Ext.emptyFn,
value:'000000',
plain:true,
listeners: {
scope: this,
select: function(cp, color){
this.execCmd('forecolor', Ext.isWebKit || Ext.isIE ? '#'+color : color);
this.deferFocus();
}
},
clickEvent:'mousedown'
})
}, {
itemId:'backcolor',
cls:'x-btn-icon',
iconCls: 'x-edit-backcolor',
clickEvent:'mousedown',
tooltip: tipsEnabled ? editor.buttonTips.backcolor || undefined : undefined,
tabIndex:-1,
menu : new Ext.menu.ColorMenu({
focus: Ext.emptyFn,
value:'FFFFFF',
plain:true,
allowReselect: true,
listeners: {
scope: this,
select: function(cp, color){
if(Ext.isGecko){
this.execCmd('useCSS', false);
this.execCmd('hilitecolor', color);
this.execCmd('useCSS', true);
this.deferFocus();
}else{
this.execCmd(Ext.isOpera ? 'hilitecolor' : 'backcolor', Ext.isWebKit || Ext.isIE ? '#'+color : color);
this.deferFocus();
}
}
},
clickEvent:'mousedown'
})
}
);
}
if(this.enableAlignments){
tb.add(
'-',
btn('justifyleft'),
btn('justifycenter'),
btn('justifyright')
);
}
if(!Ext.isSafari2){
if(this.enableLinks){
tb.add(
'-',
btn('createlink', false, this.createLink)
);
}
if(this.enableLists){
tb.add(
'-',
btn('insertorderedlist'),
btn('insertunorderedlist')
);
}
if(this.enableSourceEdit){
tb.add(
'-',
btn('sourceedit', true, function(btn){
this.toggleSourceEdit(!this.sourceEditMode);
})
);
}
}
this.tb = tb;
},
/**
* Protected method that will not generally be called directly. It
* is called when the editor initializes the iframe with HTML contents. Override this method if you
* want to change the initialization markup of the iframe (e.g. to add stylesheets).
*/
getDocMarkup : function(){
return '';
},
// private
getEditorBody : function(){
return this.doc.body || this.doc.documentElement;
},
// private
getDoc : function(){
return Ext.isIE ? this.getWin().document : (this.iframe.contentDocument || this.getWin().document);
},
// private
getWin : function(){
return Ext.isIE ? this.iframe.contentWindow : window.frames[this.iframe.name];
},
// private
onRender : function(ct, position){
Ext.form.HtmlEditor.superclass.onRender.call(this, ct, position);
this.el.dom.style.border = '0 none';
this.el.dom.setAttribute('tabIndex', -1);
this.el.addClass('x-hidden');
if(Ext.isIE){ // fix IE 1px bogus margin
this.el.applyStyles('margin-top:-1px;margin-bottom:-1px;')
}
this.wrap = this.el.wrap({
cls:'x-html-editor-wrap', cn:{cls:'x-html-editor-tb'}
});
this.createToolbar(this);
this.disableItems(true);
// is this needed?
// this.tb.doLayout();
this.createIFrame();
if(!this.width){
var sz = this.el.getSize();
this.setSize(sz.width, this.height || sz.height);
}
this.resizeEl = this.positionEl = this.wrap;
},
createIFrame: function(){
var iframe = document.createElement('iframe');
iframe.name = Ext.id();
iframe.frameBorder = '0';
iframe.src = Ext.SSL_SECURE_URL;
this.wrap.dom.appendChild(iframe);
this.iframe = iframe;
this.monitorTask = Ext.TaskMgr.start({
run: this.checkDesignMode,
scope: this,
interval:100
});
},
initFrame : function(){
Ext.TaskMgr.stop(this.monitorTask);
this.doc = this.getDoc();
this.win = this.getWin();
this.doc.open();
this.doc.write(this.getDocMarkup());
this.doc.close();
var task = { // must defer to wait for browser to be ready
run : function(){
if(this.doc.body || this.doc.readyState == 'complete'){
Ext.TaskMgr.stop(task);
this.doc.designMode="on";
this.initEditor.defer(10, this);
}
},
interval : 10,
duration:10000,
scope: this
};
Ext.TaskMgr.start(task);
},
checkDesignMode : function(){
if(this.wrap && this.wrap.dom.offsetWidth){
var doc = this.getDoc();
if(!doc){
return;
}
if(!doc.editorInitialized || String(doc.designMode).toLowerCase() != 'on'){
this.initFrame();
}
}
},
disableItems: function(disabled){
if(this.fontSelect){
this.fontSelect.dom.disabled = disabled;
}
this.tb.items.each(function(item){
if(item.getItemId() != 'sourceedit'){
item.setDisabled(disabled);
}
});
},
// private
onResize : function(w, h){
Ext.form.HtmlEditor.superclass.onResize.apply(this, arguments);
if(this.el && this.iframe){
if(Ext.isNumber(w)){
var aw = w - this.wrap.getFrameWidth('lr');
this.el.setWidth(aw);
this.tb.setWidth(aw);
this.iframe.style.width = Math.max(aw, 0) + 'px';
}
if(Ext.isNumber(h)){
var ah = h - this.wrap.getFrameWidth('tb') - this.tb.el.getHeight();
this.el.setHeight(ah);
this.iframe.style.height = Math.max(ah, 0) + 'px';
if(this.doc){
this.getEditorBody().style.height = Math.max((ah - (this.iframePad*2)), 0) + 'px';
}
}
}
},
/**
* Toggles the editor between standard and source edit mode.
* @param {Boolean} sourceEdit (optional) True for source edit, false for standard
*/
toggleSourceEdit : function(sourceEditMode){
if(sourceEditMode === undefined){
sourceEditMode = !this.sourceEditMode;
}
this.sourceEditMode = sourceEditMode === true;
var btn = this.tb.items.get('sourceedit');
if(btn.pressed !== this.sourceEditMode){
btn.toggle(this.sourceEditMode);
if(!btn.xtbHidden){
return;
}
}
if(this.sourceEditMode){
this.disableItems(true);
this.syncValue();
this.iframe.className = 'x-hidden';
this.el.removeClass('x-hidden');
this.el.dom.removeAttribute('tabIndex');
this.el.focus();
}else{
if(this.initialized){
this.disableItems(false);
}
this.pushValue();
this.iframe.className = '';
this.el.addClass('x-hidden');
this.el.dom.setAttribute('tabIndex', -1);
this.deferFocus();
}
var lastSize = this.lastSize;
if(lastSize){
delete this.lastSize;
this.setSize(lastSize);
}
this.fireEvent('editmodechange', this, this.sourceEditMode);
},
// private used internally
createLink : function(){
var url = prompt(this.createLinkText, this.defaultLinkValue);
if(url && url != 'http:/'+'/'){
this.relayCmd('createlink', url);
}
},
// private
initEvents : function(){
this.originalValue = this.getValue();
},
/**
* Overridden and disabled. The editor element does not support standard valid/invalid marking. @hide
* @method
*/
markInvalid : Ext.emptyFn,
/**
* Overridden and disabled. The editor element does not support standard valid/invalid marking. @hide
* @method
*/
clearInvalid : Ext.emptyFn,
// docs inherit from Field
setValue : function(v){
Ext.form.HtmlEditor.superclass.setValue.call(this, v);
this.pushValue();
return this;
},
/**
* Protected method that will not generally be called directly. If you need/want
* custom HTML cleanup, this is the method you should override.
* @param {String} html The HTML to be cleaned
* @return {String} The cleaned HTML
*/
cleanHtml: function(html) {
html = String(html);
if(Ext.isWebKit){ // strip safari nonsense
html = html.replace(/\sclass="(?:Apple-style-span|khtml-block-placeholder)"/gi, '');
}
/*
* Neat little hack. Strips out all the non-digit characters from the default
* value and compares it to the character code of the first character in the string
* because it can cause encoding issues when posted to the server.
*/
if(html.charCodeAt(0) == this.defaultValue.replace(/\D/g, '')){
html = html.substring(1);
}
return html;
},
/**
* Protected method that will not generally be called directly. Syncs the contents
* of the editor iframe with the textarea.
*/
syncValue : function(){
if(this.initialized){
var bd = this.getEditorBody();
var html = bd.innerHTML;
if(Ext.isWebKit){
var bs = bd.getAttribute('style'); // Safari puts text-align styles on the body element!
var m = bs.match(/text-align:(.*?);/i);
if(m && m[1]){
html = '
' + html + '
';
}
}
html = this.cleanHtml(html);
if(this.fireEvent('beforesync', this, html) !== false){
this.el.dom.value = html;
this.fireEvent('sync', this, html);
}
}
},
//docs inherit from Field
getValue : function() {
this[this.sourceEditMode ? 'pushValue' : 'syncValue']();
return Ext.form.HtmlEditor.superclass.getValue.call(this);
},
/**
* Protected method that will not generally be called directly. Pushes the value of the textarea
* into the iframe editor.
*/
pushValue : function(){
if(this.initialized){
var v = this.el.dom.value;
if(!this.activated && v.length < 1){
v = this.defaultValue;
}
if(this.fireEvent('beforepush', this, v) !== false){
this.getEditorBody().innerHTML = v;
if(Ext.isGecko){
// Gecko hack, see: https://bugzilla.mozilla.org/show_bug.cgi?id=232791#c8
var d = this.doc,
mode = d.designMode.toLowerCase();
d.designMode = mode.toggle('on', 'off');
d.designMode = mode;
}
this.fireEvent('push', this, v);
}
}
},
// private
deferFocus : function(){
this.focus.defer(10, this);
},
// docs inherit from Field
focus : function(){
if(this.win && !this.sourceEditMode){
this.win.focus();
}else{
this.el.focus();
}
},
// private
initEditor : function(){
//Destroying the component during/before initEditor can cause issues.
try{
var dbody = this.getEditorBody();
var ss = this.el.getStyles('font-size', 'font-family', 'background-image', 'background-repeat');
ss['background-attachment'] = 'fixed'; // w3c
dbody.bgProperties = 'fixed'; // ie
Ext.DomHelper.applyStyles(dbody, ss);
if(this.doc){
try{
Ext.EventManager.removeAll(this.doc);
}catch(e){}
}
this.doc = this.getDoc();
Ext.EventManager.on(this.doc, {
'mousedown': this.onEditorEvent,
'dblclick': this.onEditorEvent,
'click': this.onEditorEvent,
'keyup': this.onEditorEvent,
buffer:100,
scope: this
});
if(Ext.isGecko){
Ext.EventManager.on(this.doc, 'keypress', this.applyCommand, this);
}
if(Ext.isIE || Ext.isWebKit || Ext.isOpera){
Ext.EventManager.on(this.doc, 'keydown', this.fixKeys, this);
}
this.initialized = true;
this.fireEvent('initialize', this);
this.doc.editorInitialized = true;
this.pushValue();
}catch(e){}
},
// private
onDestroy : function(){
if(this.monitorTask){
Ext.TaskMgr.stop(this.monitorTask);
}
if(this.rendered){
Ext.destroy(this.tb);
if(this.wrap){
this.wrap.dom.innerHTML = '';
this.wrap.remove();
}
}
if(this.el){
this.el.removeAllListeners();
this.el.remove();
}
if(this.doc){
try{
Ext.EventManager.removeAll(this.doc);
for (var prop in this.doc){
delete this.doc[prop];
}
}catch(e){}
}
this.purgeListeners();
},
// private
onFirstFocus : function(){
this.activated = true;
this.disableItems(false);
if(Ext.isGecko){ // prevent silly gecko errors
this.win.focus();
var s = this.win.getSelection();
if(!s.focusNode || s.focusNode.nodeType != 3){
var r = s.getRangeAt(0);
r.selectNodeContents(this.getEditorBody());
r.collapse(true);
this.deferFocus();
}
try{
this.execCmd('useCSS', true);
this.execCmd('styleWithCSS', false);
}catch(e){}
}
this.fireEvent('activate', this);
},
// private
adjustFont: function(btn){
var adjust = btn.getItemId() == 'increasefontsize' ? 1 : -1;
var v = parseInt(this.doc.queryCommandValue('FontSize') || 2, 10);
if((Ext.isSafari && !Ext.isSafari2) || Ext.isChrome || Ext.isAir){
// Safari 3 values
// 1 = 10px, 2 = 13px, 3 = 16px, 4 = 18px, 5 = 24px, 6 = 32px
if(v <= 10){
v = 1 + adjust;
}else if(v <= 13){
v = 2 + adjust;
}else if(v <= 16){
v = 3 + adjust;
}else if(v <= 18){
v = 4 + adjust;
}else if(v <= 24){
v = 5 + adjust;
}else {
v = 6 + adjust;
}
v = v.constrain(1, 6);
}else{
if(Ext.isSafari){ // safari
adjust *= 2;
}
v = Math.max(1, v+adjust) + (Ext.isSafari ? 'px' : 0);
}
this.execCmd('FontSize', v);
},
// private
onEditorEvent : function(e){
this.updateToolbar();
},
/**
* Protected method that will not generally be called directly. It triggers
* a toolbar update by reading the markup state of the current selection in the editor.
*/
updateToolbar: function(){
if(!this.activated){
this.onFirstFocus();
return;
}
var btns = this.tb.items.map, doc = this.doc;
if(this.enableFont && !Ext.isSafari2){
var name = (this.doc.queryCommandValue('FontName')||this.defaultFont).toLowerCase();
if(name != this.fontSelect.dom.value){
this.fontSelect.dom.value = name;
}
}
if(this.enableFormat){
btns.bold.toggle(doc.queryCommandState('bold'));
btns.italic.toggle(doc.queryCommandState('italic'));
btns.underline.toggle(doc.queryCommandState('underline'));
}
if(this.enableAlignments){
btns.justifyleft.toggle(doc.queryCommandState('justifyleft'));
btns.justifycenter.toggle(doc.queryCommandState('justifycenter'));
btns.justifyright.toggle(doc.queryCommandState('justifyright'));
}
if(!Ext.isSafari2 && this.enableLists){
btns.insertorderedlist.toggle(doc.queryCommandState('insertorderedlist'));
btns.insertunorderedlist.toggle(doc.queryCommandState('insertunorderedlist'));
}
Ext.menu.MenuMgr.hideAll();
this.syncValue();
},
// private
relayBtnCmd : function(btn){
this.relayCmd(btn.getItemId());
},
/**
* Executes a Midas editor command on the editor document and performs necessary focus and
* toolbar updates. This should only be called after the editor is initialized.
* @param {String} cmd The Midas command
* @param {String/Boolean} value (optional) The value to pass to the command (defaults to null)
*/
relayCmd : function(cmd, value){
(function(){
this.focus();
this.execCmd(cmd, value);
this.updateToolbar();
}).defer(10, this);
},
/**
* Executes a Midas editor command directly on the editor document.
* For visual commands, you should use {@link #relayCmd} instead.
* This should only be called after the editor is initialized.
* @param {String} cmd The Midas command
* @param {String/Boolean} value (optional) The value to pass to the command (defaults to null)
*/
execCmd : function(cmd, value){
this.doc.execCommand(cmd, false, value === undefined ? null : value);
this.syncValue();
},
// private
applyCommand : function(e){
if(e.ctrlKey){
var c = e.getCharCode(), cmd;
if(c > 0){
c = String.fromCharCode(c);
switch(c){
case 'b':
cmd = 'bold';
break;
case 'i':
cmd = 'italic';
break;
case 'u':
cmd = 'underline';
break;
}
if(cmd){
this.win.focus();
this.execCmd(cmd);
this.deferFocus();
e.preventDefault();
}
}
}
},
/**
* Inserts the passed text at the current cursor position. Note: the editor must be initialized and activated
* to insert text.
* @param {String} text
*/
insertAtCursor : function(text){
if(!this.activated){
return;
}
if(Ext.isIE){
this.win.focus();
var r = this.doc.selection.createRange();
if(r){
r.collapse(true);
r.pasteHTML(text);
this.syncValue();
this.deferFocus();
}
}else{
this.win.focus();
this.execCmd('InsertHTML', text);
this.deferFocus();
}
},
// private
fixKeys : function(){ // load time branching for fastest keydown performance
if(Ext.isIE){
return function(e){
var k = e.getKey(), r;
if(k == e.TAB){
e.stopEvent();
r = this.doc.selection.createRange();
if(r){
r.collapse(true);
r.pasteHTML(' ');
this.deferFocus();
}
}else if(k == e.ENTER){
r = this.doc.selection.createRange();
if(r){
var target = r.parentElement();
if(!target || target.tagName.toLowerCase() != 'li'){
e.stopEvent();
r.pasteHTML(' ');
r.collapse(false);
r.select();
}
}
}
};
}else if(Ext.isOpera){
return function(e){
var k = e.getKey();
if(k == e.TAB){
e.stopEvent();
this.win.focus();
this.execCmd('InsertHTML',' ');
this.deferFocus();
}
};
}else if(Ext.isWebKit){
return function(e){
var k = e.getKey();
if(k == e.TAB){
e.stopEvent();
this.execCmd('InsertText','\t');
this.deferFocus();
}else if(k == e.ENTER){
e.stopEvent();
this.execCmd('InsertHtml','
');
this.deferFocus();
}
};
}
}(),
/**
* Returns the editor's toolbar. This is only available after the editor has been rendered.
* @return {Ext.Toolbar}
*/
getToolbar : function(){
return this.tb;
},
/**
* Object collection of toolbar tooltips for the buttons in the editor. The key
* is the command id associated with that button and the value is a valid QuickTips object.
* For example:
{
bold : {
title: 'Bold (Ctrl+B)',
text: 'Make the selected text bold.',
cls: 'x-html-editor-tip'
},
italic : {
title: 'Italic (Ctrl+I)',
text: 'Make the selected text italic.',
cls: 'x-html-editor-tip'
},
...