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jquery.rte.js
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jquery.rte.js
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/*
* jQuery RTE plugin 0.5.1 - create a rich text form for Mozilla, Opera, Safari and Internet Explorer
*
* Copyright (c) 2009 Batiste Bieler
* Distributed under the GPL Licenses.
* Distributed under the The MIT License.
* Copyright (c) 2009 Bernd Eickhoff
* I have done slight changes to suit my particular needs.
* Distributed under the authors original licenses.
*/
// define the rte light plugin
(function($) {
$.fn.rte = function(options) {
$.fn.rte.html = function(iframe) {
return iframe.contentWindow.document.getElementsByTagName("body")[0].innerHTML;
};
$.fn.rte.defaults = {
media_url: "",
content_css_url: "rte.css",
dot_net_button_class: null,
max_height: 350
};
// build main options before element iteration
var opts = $.extend($.fn.rte.defaults, options);
// iterate and construct the RTEs
return this.each( function() {
var textarea = $(this);
var iframe;
var element_id = textarea.attr("id");
// enable design mode
function enableDesignMode() {
var content = textarea.val();
// Mozilla needs this to display caret
if($.trim(content)=='') {
content = '<br />';
}
// already created? show/hide
if(iframe) {
textarea.hide();
$(iframe).contents().find("body").html(content);
$(iframe).show();
$("#toolbar-" + element_id).remove();
textarea.before(toolbar());
return true;
}
// for compatibility reasons, need to be created this way
iframe = document.createElement("iframe");
iframe.frameBorder=0;
iframe.frameMargin=0;
iframe.framePadding=0;
iframe.height=200;
if(textarea.attr('class'))
iframe.className = textarea.attr('class');
if(textarea.attr('id'))
iframe.id = element_id;
if(textarea.attr('name'))
iframe.title = textarea.attr('name');
textarea.after(iframe);
var css = "";
if(opts.content_css_url) {
css = "<link type='text/css' rel='stylesheet' href='" + opts.content_css_url + "' />";
}
var doc = "<html><head>"+css+"</head><body class='frameBody'>"+content+"</body></html>";
tryEnableDesignMode(doc, function() {
$("#toolbar-" + element_id).remove();
textarea.before(toolbar());
// hide textarea
textarea.hide();
});
}
function tryEnableDesignMode(doc, callback) {
if(!iframe) { return false; }
try {
iframe.contentWindow.document.open();
iframe.contentWindow.document.write(doc);
iframe.contentWindow.document.close();
} catch(error) {
//console.log(error);
}
if (document.contentEditable) {
iframe.contentWindow.document.designMode = "On";
callback();
return true;
}
else if (document.designMode != null) {
try {
iframe.contentWindow.document.designMode = "on";
callback();
return true;
} catch (error) {
//console.log(error);
}
}
setTimeout(function(){tryEnableDesignMode(doc, callback)}, 500);
return false;
}
function disableDesignMode(submit) {
var content = $(iframe).contents().find("body").html();
if($(iframe).is(":visible")) {
textarea.val(content);
}
if(submit != true) {
textarea.show();
$(iframe).hide();
}
}
// create toolbar and bind events to it's elements
function toolbar() {
var tb = $("<div class='rte-toolbar' id='toolbar-"+ element_id +"'><div>\
<p>\
<select>\
<option value=''>Block style</option>\
<option value='p'>Paragraph</option>\
<option value='h3'>Title</option>\
<option value='address'>Address</option>\
</select>\
</p>\
<p>\
<a href='#' class='bold'><img src='"+opts.media_url+"bold.gif' alt='bold' /></a>\
<a href='#' class='italic'><img src='"+opts.media_url+"italic.gif' alt='italic' /></a> \
<a href='#' class='unorderedlist'><img src='"+opts.media_url+"unordered.gif' alt='unordered list' /></a>\
<a href='#' class='orderedlist'><img src='"+opts.media_url+"ordered.gif' alt='unordered list' /></a> \
<a href='#' class='link'><img src='"+opts.media_url+"link.gif' alt='link' /></a>\
<a href='#' class='wiki'><img src='"+opts.media_url+"wiki.gif' alt='wiki link' /></a> \
<a href='#' class='image'><img src='"+opts.media_url+"image.gif' alt='image' /></a> \
<a href='#' class='disable'><img src='"+opts.media_url+"html.gif' alt='html mode' /></a>\
</p></div></div>");
$('select', tb).change(function(){
var index = this.selectedIndex;
if( index!=0 ) {
var selected = this.options[index].value;
formatText("formatblock", '<'+selected+'>');
}
});
$('.bold', tb).click(function(){ formatText('bold');return false; });
$('.italic', tb).click(function(){ formatText('italic');return false; });
$('.unorderedlist', tb).click(function(){ formatText('insertunorderedlist');return false; });
$('.orderedlist', tb).click(function(){ formatText('insertorderedlist');return false; });
$('.link', tb).click(function(){
var p=prompt("URL:");
if(p)
formatText('CreateLink', p);
return false;
});
$('.wiki', tb).click(function(){
var p=prompt("URL:");
if(p) formatText('CreateLink', p);
return false;
});
$('.image', tb).click(function(){
var p=prompt("image URL:");
if(p) formatText('InsertImage', p);
return false;
});
$('.disable', tb).click(function() {
disableDesignMode();
var edm = $('<a class="rte-edm" href="#">design mode</a>');
tb.empty().append(edm);
edm.click(function(e){
e.preventDefault();
enableDesignMode();
// remove, for good measure
$(this).remove();
});
return false;
});
// .NET compatability
if(opts.dot_net_button_class) {
var dot_net_button = $(iframe).parents('form').find(opts.dot_net_button_class);
dot_net_button.click(function() {
disableDesignMode(true);
});
// Regular forms
} else {
$(iframe).parents('form').submit(function(){
disableDesignMode(true);
});
}
var iframeDoc = $(iframe.contentWindow.document);
var select = $('select', tb)[0];
iframeDoc.mouseup(function(){
setSelectedType(getSelectionElement(), select);
return true;
});
iframeDoc.keyup(function() {
setSelectedType(getSelectionElement(), select);
var body = $('body', iframeDoc);
if(body.scrollTop() > 0) {
var iframe_height = parseInt(iframe.style['height'])
if(isNaN(iframe_height))
iframe_height = 0;
var h = Math.min(opts.max_height, iframe_height+body.scrollTop()) + 'px';
iframe.style['height'] = h;
}
return true;
});
return tb;
};
function formatText(command, option) {
iframe.contentWindow.focus();
try{
iframe.contentWindow.document.execCommand(command, false, option);
}catch(e){
//console.log(e)
}
iframe.contentWindow.focus();
};
function setSelectedType(node, select) {
while(node.parentNode) {
var nName = node.nodeName.toLowerCase();
for(var i=0;i<select.options.length;i++) {
if(nName==select.options[i].value){
select.selectedIndex=i;
return true;
}
}
node = node.parentNode;
}
select.selectedIndex=0;
return true;
};
function getSelectionElement() {
if (iframe.contentWindow.document.selection) {
// IE selections
selection = iframe.contentWindow.document.selection;
range = selection.createRange();
try {
node = range.parentElement();
}
catch (e) {
return false;
}
} else {
// Mozilla selections
try {
selection = iframe.contentWindow.getSelection();
range = selection.getRangeAt(0);
}
catch(e){
return false;
}
node = range.commonAncestorContainer;
}
return node;
};
// enable design mode now
enableDesignMode();
}); //return this.each
};// rte
})(jQuery);