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jquery.wysiwyg.js
659 lines (537 loc) · 22.4 KB
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jquery.wysiwyg.js
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/**
* WYSIWYG - jQuery plugin 0.5
*
* Copyright (c) 2008-2009 Juan M Martinez
* http://plugins.jquery.com/project/jWYSIWYG
*
* Dual licensed under the MIT and GPL licenses:
* http://www.opensource.org/licenses/mit-license.php
* http://www.gnu.org/licenses/gpl.html
*
* $Id: $
*/
(function( $ )
{
$.fn.document = function()
{
var element = this[0];
if ( element.nodeName.toLowerCase() == 'iframe' )
return element.contentWindow.document;
/*
return ( $.browser.msie )
? document.frames[element.id].document
: element.contentWindow.document // contentDocument;
*/
else
return $(this);
};
$.fn.documentSelection = function()
{
var element = this[0];
if ( element.contentWindow.document.selection )
return element.contentWindow.document.selection.createRange().text;
else
return element.contentWindow.getSelection().toString();
};
$.fn.wysiwyg = function( options )
{
if ( arguments.length > 0 && arguments[0].constructor == String )
{
var action = arguments[0].toString();
var params = [];
for ( var i = 1; i < arguments.length; i++ )
params[i - 1] = arguments[i];
if ( action in Wysiwyg )
{
return this.each(function()
{
$.data(this, 'wysiwyg')
.designMode();
Wysiwyg[action].apply(this, params);
});
}
else return this;
}
var controls = {};
/**
* If the user set custom controls, we catch it, and merge with the
* defaults controls later.
*/
if ( options && options.controls )
{
var controls = options.controls;
delete options.controls;
}
var options = $.extend({
html : '<'+'?xml version="1.0" encoding="UTF-8"?'+'><!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd"><html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en"><head><meta http-equiv="Content-Type" content="text/html; charset=UTF-8">STYLE_SHEET</head><body>INITIAL_CONTENT</body></html>',
css : {},
debug : false,
autoSave : true, // http://code.google.com/p/jwysiwyg/issues/detail?id=11
rmUnwantedBr : true, // http://code.google.com/p/jwysiwyg/issues/detail?id=15
brIE : true,
controls : {},
messages : {}
}, options);
options.messages = $.extend(true, options.messages, Wysiwyg.MSGS_EN);
options.controls = $.extend(true, options.controls, Wysiwyg.TOOLBAR);
for ( var control in controls )
{
if ( control in options.controls )
$.extend(options.controls[control], controls[control]);
else
options.controls[control] = controls[control];
}
// not break the chain
return this.each(function()
{
Wysiwyg(this, options);
});
};
function Wysiwyg( element, options )
{
return this instanceof Wysiwyg
? this.init(element, options)
: new Wysiwyg(element, options);
}
$.extend(Wysiwyg, {
insertImage : function( szURL, attributes )
{
var self = $.data(this, 'wysiwyg');
if ( self.constructor == Wysiwyg && szURL && szURL.length > 0 )
{
if ( attributes )
{
self.editorDoc.execCommand('insertImage', false, '#jwysiwyg#');
var img = self.getElementByAttributeValue('img', 'src', '#jwysiwyg#');
if ( img )
{
img.src = szURL;
for ( var attribute in attributes )
{
img.setAttribute(attribute, attributes[attribute]);
}
}
}
else
{
self.editorDoc.execCommand('insertImage', false, szURL);
}
}
},
createLink : function( szURL )
{
var self = $.data(this, 'wysiwyg');
if ( self.constructor == Wysiwyg && szURL && szURL.length > 0 )
{
var selection = $(self.editor).documentSelection();
if ( selection.length > 0 )
{
self.editorDoc.execCommand('unlink', false, []);
self.editorDoc.execCommand('createLink', false, szURL);
}
else if ( self.options.messages.nonSelection )
alert(self.options.messages.nonSelection);
}
},
setContent : function( newContent )
{
var self = $.data(this, 'wysiwyg');
self.setContent( newContent );
self.saveContent();
},
clear : function()
{
var self = $.data(this, 'wysiwyg');
self.setContent('');
self.saveContent();
},
MSGS_EN : {
nonSelection : 'select the text you wish to link'
},
TOOLBAR : {
bold : { visible : true, tags : ['b', 'strong'], css : { fontWeight : 'bold' } },
italic : { visible : true, tags : ['i', 'em'], css : { fontStyle : 'italic' } },
strikeThrough : { visible : false, tags : ['s', 'strike'], css : { textDecoration : 'line-through' } },
underline : { visible : false, tags : ['u'], css : { textDecoration : 'underline' } },
separator00 : { visible : false, separator : true },
justifyLeft : { visible : false, css : { textAlign : 'left' } },
justifyCenter : { visible : false, tags : ['center'], css : { textAlign : 'center' } },
justifyRight : { visible : false, css : { textAlign : 'right' } },
justifyFull : { visible : false, css : { textAlign : 'justify' } },
separator01 : { visible : false, separator : true },
indent : { visible : false },
outdent : { visible : false },
separator02 : { visible : false, separator : true },
subscript : { visible : false, tags : ['sub'] },
superscript : { visible : false, tags : ['sup'] },
separator03 : { visible : false, separator : true },
undo : { visible : false },
redo : { visible : false },
separator04 : { visible : false, separator : true },
insertOrderedList : { visible : false, tags : ['ol'] },
insertUnorderedList : { visible : false, tags : ['ul'] },
insertHorizontalRule : { visible : false, tags : ['hr'] },
separator05 : { separator : true },
createLink : {
visible : true,
exec : function()
{
var selection = $(this.editor).documentSelection();
if ( selection.length > 0 )
{
if ( $.browser.msie )
this.editorDoc.execCommand('createLink', true, null);
else
{
var szURL = prompt('URL', 'http://');
if ( szURL && szURL.length > 0 )
{
this.editorDoc.execCommand('unlink', false, []);
this.editorDoc.execCommand('createLink', false, szURL);
}
}
}
else if ( this.options.messages.nonSelection )
alert(this.options.messages.nonSelection);
},
tags : ['a']
},
insertImage : {
visible : true,
exec : function()
{
if ( $.browser.msie )
this.editorDoc.execCommand('insertImage', true, null);
else
{
var szURL = prompt('URL', 'http://');
if ( szURL && szURL.length > 0 )
this.editorDoc.execCommand('insertImage', false, szURL);
}
},
tags : ['img']
},
separator06 : { separator : true },
h1mozilla : { visible : false && $.browser.mozilla, className : 'h1', command : 'heading', arguments : ['h1'], tags : ['h1'] },
h2mozilla : { visible : false && $.browser.mozilla, className : 'h2', command : 'heading', arguments : ['h2'], tags : ['h2'] },
h3mozilla : { visible : true && $.browser.mozilla, className : 'h3', command : 'heading', arguments : ['h3'], tags : ['h3'] },
h4mozilla : { visible : true && $.browser.mozilla, className : 'h4', command : 'heading', arguments : ['h4'], tags : ['h4'] },
h5mozilla : { visible : true && $.browser.mozilla, className : 'h5', command : 'heading', arguments : ['h5'], tags : ['h5'] },
h6mozilla : { visible : false && $.browser.mozilla, className : 'h6', command : 'heading', arguments : ['h6'], tags : ['h6'] },
h1 : { visible : false && !( $.browser.mozilla ), className : 'h1', command : 'formatBlock', arguments : ['Heading 1'], tags : ['h1'] },
h2 : { visible : false && !( $.browser.mozilla ), className : 'h2', command : 'formatBlock', arguments : ['Heading 2'], tags : ['h2'] },
h3 : { visible : true && !( $.browser.mozilla ), className : 'h3', command : 'formatBlock', arguments : ['Heading 3'], tags : ['h3'] },
h4 : { visible : true && !( $.browser.mozilla ), className : 'h4', command : 'formatBlock', arguments : ['Heading 4'], tags : ['h4'] },
h5 : { visible : true && !( $.browser.mozilla ), className : 'h5', command : 'formatBlock', arguments : ['Heading 5'], tags : ['h5'] },
h6 : { visible : false && !( $.browser.mozilla ), className : 'h6', command : 'formatBlock', arguments : ['Heading 6'], tags : ['h6'] },
separator07 : { visible : false, separator : true },
cut : { visible : false },
copy : { visible : false },
paste : { visible : false },
separator08 : { separator : true && !( $.browser.msie ) },
increaseFontSize : { visible : true && !( $.browser.msie ), tags : ['big'] },
decreaseFontSize : { visible : true && !( $.browser.msie ), tags : ['small'] },
separator09 : { separator : true },
html : {
visible : false,
exec : function()
{
if ( this.viewHTML )
{
this.setContent( $(this.original).val() );
$(this.original).hide();
}
else
{
this.saveContent();
$(this.original).show();
}
this.viewHTML = !( this.viewHTML );
}
},
removeFormat : {
visible : true,
exec : function()
{
this.editorDoc.execCommand('removeFormat', false, []);
this.editorDoc.execCommand('unlink', false, []);
}
}
}
});
$.extend(Wysiwyg.prototype,
{
original : null,
options : {},
element : null,
editor : null,
init : function( element, options )
{
var self = this;
this.editor = element;
this.options = options || {};
$.data(element, 'wysiwyg', this);
var newX = element.width || element.clientWidth;
var newY = element.height || element.clientHeight;
if ( element.nodeName.toLowerCase() == 'textarea' )
{
this.original = element;
if ( newX == 0 && element.cols )
newX = ( element.cols * 8 ) + 21;
if ( newY == 0 && element.rows )
newY = ( element.rows * 16 ) + 16;
var editor = this.editor = $('<iframe></iframe>').css({
minHeight : ( newY - 6 ).toString() + 'px',
width : ( newX - 8 ).toString() + 'px'
}).attr('id', $(element).attr('id') + 'IFrame');
if ( $.browser.msie )
{
this.editor
.css('height', ( newY ).toString() + 'px');
/**
var editor = $('<span></span>').css({
width : ( newX - 6 ).toString() + 'px',
height : ( newY - 8 ).toString() + 'px'
}).attr('id', $(element).attr('id') + 'IFrame');
editor.outerHTML = this.editor.outerHTML;
*/
}
}
var panel = this.panel = $('<ul></ul>').addClass('panel');
this.appendControls();
this.element = $('<div></div>').css({
width : ( newX > 0 ) ? ( newX ).toString() + 'px' : '100%'
}).addClass('wysiwyg')
.append(panel)
.append( $('<div><!-- --></div>').css({ clear : 'both' }) )
.append(editor);
$(element)
// .css('display', 'none')
.hide()
.before(this.element);
this.viewHTML = false;
this.initialHeight = newY - 8;
/**
* @link http://code.google.com/p/jwysiwyg/issues/detail?id=52
*/
this.initialContent = $(element).val();
this.initFrame();
if ( this.initialContent.length == 0 )
this.setContent('');
if ( this.options.autoSave )
$('form').submit(function() { self.saveContent(); });
$('form').bind('reset', function()
{
self.setContent( self.initialContent );
self.saveContent();
});
},
initFrame : function()
{
var self = this;
var style = '';
/**
* @link http://code.google.com/p/jwysiwyg/issues/detail?id=14
*/
if ( this.options.css && this.options.css.constructor == String )
style = '<link rel="stylesheet" type="text/css" media="screen" href="' + this.options.css + '" />';
this.editorDoc = $(this.editor).document();
this.editorDoc_designMode = false;
try {
this.editorDoc.designMode = 'on';
this.editorDoc_designMode = true;
} catch ( e ) {
// Will fail on Gecko if the editor is placed in an hidden container element
// The design mode will be set ones the editor is focused
$(this.editorDoc).focus(function()
{
self.designMode();
});
}
this.editorDoc.open();
this.editorDoc.write(
this.options.html
.replace(/INITIAL_CONTENT/, this.initialContent)
.replace(/STYLE_SHEET/, style)
);
this.editorDoc.close();
this.editorDoc.contentEditable = 'true';
if ( $.browser.msie )
{
/**
* Remove the horrible border it has on IE.
*/
setTimeout(function() { $(self.editorDoc.body).css('border', 'none'); }, 0);
}
$(this.editorDoc).click(function( event )
{
self.checkTargets( event.target ? event.target : event.srcElement);
});
/**
* @link http://code.google.com/p/jwysiwyg/issues/detail?id=20
*/
$(this.original).focus(function()
{
$(self.editorDoc.body).focus();
});
if ( this.options.autoSave )
{
/**
* @link http://code.google.com/p/jwysiwyg/issues/detail?id=11
*/
$(this.editorDoc).keydown(function() { self.saveContent(); })
.keyup(function() { self.saveContent(); })
.mousedown(function() { self.saveContent(); });
}
if ( this.options.css )
{
setTimeout(function()
{
if ( self.options.css.constructor == String )
{
/**
* $(self.editorDoc)
* .find('head')
* .append(
* $('<link rel="stylesheet" type="text/css" media="screen" />')
* .attr('href', self.options.css)
* );
*/
}
else
$(self.editorDoc).find('body').css(self.options.css);
}, 0);
}
$(this.editorDoc).keydown(function( event )
{
if ( $.browser.msie && self.options.brIE && event.keyCode == 13 )
{
var rng = self.getRange();
rng.pasteHTML('<br />');
rng.collapse(false);
rng.select();
return false;
}
});
},
designMode : function()
{
if ( !( this.editorDoc_designMode ) )
{
try {
this.editorDoc.designMode = 'on';
this.editorDoc_designMode = true;
} catch ( e ) {}
}
},
getSelection : function()
{
return ( window.getSelection ) ? window.getSelection() : document.selection;
},
getRange : function()
{
var selection = this.getSelection();
if ( !( selection ) )
return null;
return ( selection.rangeCount > 0 ) ? selection.getRangeAt(0) : selection.createRange();
},
getContent : function()
{
return $( $(this.editor).document() ).find('body').html();
},
setContent : function( newContent )
{
$( $(this.editor).document() ).find('body').html(newContent);
},
saveContent : function()
{
if ( this.original )
{
var content = this.getContent();
if ( this.options.rmUnwantedBr )
content = ( content.substr(-4) == '<br>' ) ? content.substr(0, content.length - 4) : content;
$(this.original).val(content);
}
},
appendMenu : function( cmd, args, className, fn )
{
var self = this;
var args = args || [];
$('<li></li>').append(
$('<a><!-- --></a>').addClass(className || cmd)
).mousedown(function() {
if ( fn ) fn.apply(self); else self.editorDoc.execCommand(cmd, false, args);
if ( self.options.autoSave ) self.saveContent();
}).appendTo( this.panel );
},
appendMenuSeparator : function()
{
$('<li class="separator"></li>').appendTo( this.panel );
},
appendControls : function()
{
for ( var name in this.options.controls )
{
var control = this.options.controls[name];
if ( control.separator )
{
if ( control.visible !== false )
this.appendMenuSeparator();
}
else if ( control.visible )
{
this.appendMenu(
control.command || name, control.arguments || [],
control.className || control.command || name || 'empty', control.exec
);
}
}
},
checkTargets : function( element )
{
for ( var name in this.options.controls )
{
var control = this.options.controls[name];
var className = control.className || control.command || name || 'empty';
$('.' + className, this.panel).removeClass('active');
if ( control.tags )
{
var elm = element;
do {
if ( elm.nodeType != 1 )
break;
if ( $.inArray(elm.tagName.toLowerCase(), control.tags) != -1 )
$('.' + className, this.panel).addClass('active');
} while ( elm = elm.parentNode );
}
if ( control.css )
{
var elm = $(element);
do {
if ( elm[0].nodeType != 1 )
break;
for ( var cssProperty in control.css )
if ( elm.css(cssProperty).toString().toLowerCase() == control.css[cssProperty] )
$('.' + className, this.panel).addClass('active');
} while ( elm = elm.parent() );
}
}
},
getElementByAttributeValue : function( tagName, attributeName, attributeValue )
{
var elements = this.editorDoc.getElementsByTagName(tagName);
for ( var i = 0; i < elements.length; i++ )
{
var value = elements[i].getAttribute(attributeName);
if ( $.browser.msie )
{
/** IE add full path, so I check by the last chars. */
value = value.substr(value.length - attributeValue.length);
}
if ( value == attributeValue )
return elements[i];
}
return false;
}
});
})(jQuery);