/**
* plugin.js
*
* Released under LGPL License.
* Copyright (c) 1999-2015 Ephox Corp. All rights reserved
*
* License: http://www.tinymce.com/license
* Contributing: http://www.tinymce.com/contributing
*/
/*global tinymce:true */
tinymce.PluginManager.add('visualchars', function (editor) {
var self = this, state;
function toggleVisualChars(addBookmark) {
var node, nodeList, i, body = editor.getBody(), nodeValue, selection = editor.selection, div, bookmark;
var charMap, visualCharsRegExp;
charMap = {
'\u00a0': 'nbsp',
'\u00ad': 'shy'
};
function wrapCharWithSpan(value) {
return '<span data-mce-bogus="1" class="mce-' + charMap[value] + '">' + value + '</span>';
}
function compileCharMapToRegExp() {
var key, regExp = '';
for (key in charMap) {
regExp += key;
}
return new RegExp('[' + regExp + ']', 'g');
}
function compileCharMapToCssSelector() {
var key, selector = '';
for (key in charMap) {
if (selector) {
selector += ',';
}
selector += 'span.mce-' + charMap[key];
}
return selector;
}
state = !state;
self.state = state;
editor.fire('VisualChars', {state: state});
visualCharsRegExp = compileCharMapToRegExp();
if (addBookmark) {
bookmark = selection.getBookmark();
}
if (state) {
nodeList = [];
tinymce.walk(body, function (n) {
if (n.nodeType == 3 && n.nodeValue && visualCharsRegExp.test(n.nodeValue)) {
nodeList.push(n);
}
}, 'childNodes');
for (i = 0; i < nodeList.length; i++) {
nodeValue = nodeList[i].nodeValue;
nodeValue = nodeValue.replace(visualCharsRegExp, wrapCharWithSpan);
div = editor.dom.create('div', null, nodeValue);
while ((node = div.lastChild)) {
editor.dom.insertAfter(node, nodeList[i]);
}
editor.dom.remove(nodeList[i]);
}
} else {
nodeList = editor.dom.select(compileCharMapToCssSelector(), body);
for (i = nodeList.length - 1; i >= 0; i--) {
editor.dom.remove(nodeList[i], 1);
}
}
selection.moveToBookmark(bookmark);
}
function toggleActiveState() {
var self = this;
editor.on('VisualChars', function (e) {
self.active(e.state);
});
}
editor.addCommand('mceVisualChars', toggleVisualChars);
editor.addButton('visualchars', {
title: 'Show invisible characters',
cmd: 'mceVisualChars',
onPostRender: toggleActiveState
});
editor.addMenuItem('visualchars', {
text: 'Show invisible characters',
cmd: 'mceVisualChars',
onPostRender: toggleActiveState,
selectable: true,
context: 'view',
prependToContext: true
});
editor.on('beforegetcontent', function (e) {
if (state && e.format != 'raw' && !e.draft) {
state = true;
toggleVisualChars(false);
}
});
});
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