( function( tinymce ) {

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tinymce.ui.Factory.add( 'WPLinkPreview', tinymce.ui.Control.extend( {

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url: '#',

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renderHtml: function() {

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return (

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'<div id="' + this._id + '" class="wp-link-preview">' +

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'<a href="' + this.url + '" target="_blank" tabindex="-1">' + this.url + '</a>' +

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'</div>'

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);

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},

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setURL: function( url ) {

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var index, lastIndex;

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if ( this.url !== url ) {

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this.url = url;

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url = window.decodeURIComponent( url );

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url = url.replace( /^(?:https?:)?\/\/(?:www\.)?/, '' );

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if ( ( index = url.indexOf( '?' ) ) !== -1 ) {

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url = url.slice( 0, index );

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}

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if ( ( index = url.indexOf( '#' ) ) !== -1 ) {

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url = url.slice( 0, index );

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}

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url = url.replace( /(?:index)?\.html$/, '' );

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if ( url.charAt( url.length - 1 ) === '/' ) {

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url = url.slice( 0, -1 );

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}

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// If nothing's left (maybe the URL was just a fragment), use the whole URL.

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if ( url === '' ) {

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url = this.url;

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}

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// If the URL is longer that 40 chars, concatenate the beginning (after the domain) and ending with '...'.

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if ( url.length > 40 && ( index = url.indexOf( '/' ) ) !== -1 && ( lastIndex = url.lastIndexOf( '/' ) ) !== -1 && lastIndex !== index ) {

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// If the beginning + ending are shorter that 40 chars, show more of the ending.

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if ( index + url.length - lastIndex < 40 ) {

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lastIndex = -( 40 - ( index + 1 ) );

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}

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url = url.slice( 0, index + 1 ) + '\u2026' + url.slice( lastIndex );

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}

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tinymce.$( this.getEl().firstChild ).attr( 'href', this.url ).text( url );

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}

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}

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} ) );

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tinymce.ui.Factory.add( 'WPLinkInput', tinymce.ui.Control.extend( {

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renderHtml: function() {

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return (

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'<div id="' + this._id + '" class="wp-link-input">' +

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'<label for="' + this._id + '_label">' + tinymce.translate( 'Paste URL or type to search' ) + '</label><input id="' + this._id + '_label" type="text" value="" />' +

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'<input type="text" style="display:none" value="" />' +

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'</div>'

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);

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},

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setURL: function( url ) {

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this.getEl().firstChild.nextSibling.value = url;

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},

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getURL: function() {

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return tinymce.trim( this.getEl().firstChild.nextSibling.value );

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},

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getLinkText: function() {

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var text = this.getEl().firstChild.nextSibling.nextSibling.value;

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if ( ! tinymce.trim( text ) ) {

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return '';

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}

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return text.replace( /[\r\n\t ]+/g, ' ' );

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},

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reset: function() {

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var urlInput = this.getEl().firstChild.nextSibling;

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urlInput.value = '';

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urlInput.nextSibling.value = '';

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}

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} ) );

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tinymce.PluginManager.add( 'wplink', function( editor ) {

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var toolbar;

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var editToolbar;

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var previewInstance;

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var inputInstance;

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var linkNode;

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var doingUndoRedo;

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var doingUndoRedoTimer;

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var $ = window.jQuery;

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var emailRegex = /^(mailto:)?[a-z0-9._%+-]+@[a-z0-9][a-z0-9.-]*\.[a-z]{2,63}$/i;

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var urlRegex1 = /^https?:\/\/([^\s/?.#-][^\s\/?.#]*\.?)+(\/[^\s"]*)?$/i;

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var urlRegex2 = /^https?:\/\/[^\/]+\.[^\/]+($|\/)/i;

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var speak = ( typeof window.wp !== 'undefined' && window.wp.a11y && window.wp.a11y.speak ) ? window.wp.a11y.speak : function() {};

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var hasLinkError = false;

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var __ = window.wp.i18n.__;

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var _n = window.wp.i18n._n;

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var sprintf = window.wp.i18n.sprintf;

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function getSelectedLink() {

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var href, html,

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node = editor.selection.getStart(),

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link = editor.dom.getParent( node, 'a[href]' );

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if ( ! link ) {

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html = editor.selection.getContent({ format: 'raw' });

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if ( html && html.indexOf( '</a>' ) !== -1 ) {

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href = html.match( /href="([^">]+)"/ );

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if ( href && href[1] ) {

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link = editor.$( 'a[href="' + href[1] + '"]', node )[0];

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}

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if ( link ) {

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editor.selection.select( link );

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}

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}

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}

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return link;

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}

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function removePlaceholders() {

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editor.$( 'a' ).each( function( i, element ) {

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var $element = editor.$( element );

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if ( $element.attr( 'href' ) === '_wp_link_placeholder' ) {

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editor.dom.remove( element, true );

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} else if ( $element.attr( 'data-wplink-edit' ) ) {

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$element.attr( 'data-wplink-edit', null );

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}

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});

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}

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function removePlaceholderStrings( content, dataAttr ) {

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return content.replace( /(<a [^>]+>)([\s\S]*?)<\/a>/g, function( all, tag, text ) {

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if ( tag.indexOf( ' href="_wp_link_placeholder"' ) > -1 ) {

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return text;

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}

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if ( dataAttr ) {

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tag = tag.replace( / data-wplink-edit="true"/g, '' );

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}

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tag = tag.replace( / data-wplink-url-error="true"/g, '' );

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return tag + text + '</a>';

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});

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}

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function checkLink( node ) {

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var $link = editor.$( node );

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var href = $link.attr( 'href' );

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if ( ! href || typeof $ === 'undefined' ) {

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return;

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}

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hasLinkError = false;

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if ( /^http/i.test( href ) && ( ! urlRegex1.test( href ) || ! urlRegex2.test( href ) ) ) {

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hasLinkError = true;

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$link.attr( 'data-wplink-url-error', 'true' );

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speak( editor.translate( 'Warning: the link has been inserted but may have errors. Please test it.' ), 'assertive' );

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} else {

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$link.removeAttr( 'data-wplink-url-error' );

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}

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}

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editor.on( 'preinit', function() {

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if ( editor.wp && editor.wp._createToolbar ) {

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toolbar = editor.wp._createToolbar( [

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'wp_link_preview',

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'wp_link_edit',

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'wp_link_remove'

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], true );

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var editButtons = [

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'wp_link_input',

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'wp_link_apply'

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];

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if ( typeof window.wpLink !== 'undefined' ) {

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editButtons.push( 'wp_link_advanced' );

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}

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editToolbar = editor.wp._createToolbar( editButtons, true );

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editToolbar.on( 'show', function() {

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if ( typeof window.wpLink === 'undefined' || ! window.wpLink.modalOpen ) {

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window.setTimeout( function() {

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var element = editToolbar.$el.find( 'input.ui-autocomplete-input' )[0],

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selection = linkNode && ( linkNode.textContent || linkNode.innerText );

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if ( element ) {

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if ( ! element.value && selection && typeof window.wpLink !== 'undefined' ) {

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element.value = window.wpLink.getUrlFromSelection( selection );

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}

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if ( ! doingUndoRedo ) {

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element.focus();

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element.select();

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}

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}

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} );

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}

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} );

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editToolbar.on( 'hide', function() {

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if ( ! editToolbar.scrolling ) {

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editor.execCommand( 'wp_link_cancel' );

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}

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} );

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}

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} );

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editor.addCommand( 'WP_Link', function() {

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if ( tinymce.Env.ie && tinymce.Env.ie < 10 && typeof window.wpLink !== 'undefined' ) {

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window.wpLink.open( editor.id );

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return;

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}

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linkNode = getSelectedLink();

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editToolbar.tempHide = false;

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if ( ! linkNode ) {

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removePlaceholders();

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editor.execCommand( 'mceInsertLink', false, { href: '_wp_link_placeholder' } );

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linkNode = editor.$( 'a[href="_wp_link_placeholder"]' )[0];

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editor.nodeChanged();

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}

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editor.dom.setAttribs( linkNode, { 'data-wplink-edit': true } );

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} );

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editor.addCommand( 'wp_link_apply', function() {

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if ( editToolbar.scrolling ) {

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return;

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}

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var href, text;

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if ( linkNode ) {

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href = inputInstance.getURL();

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text = inputInstance.getLinkText();

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editor.focus();

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var parser = document.createElement( 'a' );

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parser.href = href;

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if ( 'javascript:' === parser.protocol || 'data:' === parser.protocol ) { // jshint ignore:line

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href = '';

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}

[259] Fix | Delete

[260] Fix | Delete

if ( ! href ) {

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editor.dom.remove( linkNode, true );

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return;

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}

[264] Fix | Delete

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if ( ! /^(?:[a-z]+:|#|\?|\.|\/)/.test( href ) && ! emailRegex.test( href ) ) {

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href = 'http://' + href;

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}

[268] Fix | Delete

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editor.dom.setAttribs( linkNode, { href: href, 'data-wplink-edit': null } );

[270] Fix | Delete

[271] Fix | Delete

if ( ! tinymce.trim( linkNode.innerHTML ) ) {

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editor.$( linkNode ).text( text || href );

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}

[274] Fix | Delete

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checkLink( linkNode );

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}

[277] Fix | Delete

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inputInstance.reset();

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editor.nodeChanged();

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// Audible confirmation message when a link has been inserted in the Editor.

[282] Fix | Delete

if ( typeof window.wpLinkL10n !== 'undefined' && ! hasLinkError ) {

[283] Fix | Delete

speak( window.wpLinkL10n.linkInserted );

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}

[285] Fix | Delete

} );

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[287] Fix | Delete

editor.addCommand( 'wp_link_cancel', function() {

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inputInstance.reset();

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[290] Fix | Delete

if ( ! editToolbar.tempHide ) {

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removePlaceholders();

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}

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} );

[294] Fix | Delete

[295] Fix | Delete

editor.addCommand( 'wp_unlink', function() {

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editor.execCommand( 'unlink' );

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editToolbar.tempHide = false;

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editor.execCommand( 'wp_link_cancel' );

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} );

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// WP default shortcuts.

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editor.addShortcut( 'access+a', '', 'WP_Link' );

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editor.addShortcut( 'access+s', '', 'wp_unlink' );

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// The "de-facto standard" shortcut, see #27305.

[305] Fix | Delete

editor.addShortcut( 'meta+k', '', 'WP_Link' );

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[307] Fix | Delete

editor.addButton( 'link', {

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icon: 'link',

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tooltip: 'Insert/edit link',

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cmd: 'WP_Link',

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stateSelector: 'a[href]'

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});

[313] Fix | Delete

[314] Fix | Delete

editor.addButton( 'unlink', {

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icon: 'unlink',

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tooltip: 'Remove link',

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cmd: 'unlink'

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});

[319] Fix | Delete

[320] Fix | Delete

editor.addMenuItem( 'link', {

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icon: 'link',

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text: 'Insert/edit link',

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cmd: 'WP_Link',

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stateSelector: 'a[href]',

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context: 'insert',

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prependToContext: true

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});

[328] Fix | Delete

[329] Fix | Delete

editor.on( 'pastepreprocess', function( event ) {

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var pastedStr = event.content,

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regExp = /^(?:https?:)?\/\/\S+$/i;

[332] Fix | Delete

[333] Fix | Delete

if ( ! editor.selection.isCollapsed() && ! regExp.test( editor.selection.getContent() ) ) {

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pastedStr = pastedStr.replace( /<[^>]+>/g, '' );

[335] Fix | Delete

pastedStr = tinymce.trim( pastedStr );

[336] Fix | Delete

[337] Fix | Delete

if ( regExp.test( pastedStr ) ) {

[338] Fix | Delete

editor.execCommand( 'mceInsertLink', false, {

[339] Fix | Delete

href: editor.dom.decode( pastedStr )

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} );

[341] Fix | Delete

[342] Fix | Delete

event.preventDefault();

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}

[344] Fix | Delete

}

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} );

[346] Fix | Delete

[347] Fix | Delete

// Remove any remaining placeholders on saving.

[348] Fix | Delete

editor.on( 'savecontent', function( event ) {

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event.content = removePlaceholderStrings( event.content, true );

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});

[351] Fix | Delete

[352] Fix | Delete

// Prevent adding undo levels on inserting link placeholder.

[353] Fix | Delete

editor.on( 'BeforeAddUndo', function( event ) {

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if ( event.lastLevel && event.lastLevel.content && event.level.content &&

[355] Fix | Delete

event.lastLevel.content === removePlaceholderStrings( event.level.content ) ) {

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[357] Fix | Delete

event.preventDefault();

[358] Fix | Delete

}

[359] Fix | Delete

});

[360] Fix | Delete

[361] Fix | Delete

// When doing undo and redo with keyboard shortcuts (Ctrl|Cmd+Z, Ctrl|Cmd+Shift+Z, Ctrl|Cmd+Y),

[362] Fix | Delete

// set a flag to not focus the inline dialog. The editor has to remain focused so the users can do consecutive undo/redo.

[363] Fix | Delete

editor.on( 'keydown', function( event ) {

[364] Fix | Delete

if ( event.keyCode === 27 ) { // Esc

[365] Fix | Delete

editor.execCommand( 'wp_link_cancel' );

[366] Fix | Delete

}

[367] Fix | Delete

[368] Fix | Delete

if ( event.altKey || ( tinymce.Env.mac && ( ! event.metaKey || event.ctrlKey ) ) ||

[369] Fix | Delete

( ! tinymce.Env.mac && ! event.ctrlKey ) ) {

[370] Fix | Delete

[371] Fix | Delete

return;

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}

[373] Fix | Delete

[374] Fix | Delete

if ( event.keyCode === 89 || event.keyCode === 90 ) { // Y or Z

[375] Fix | Delete

doingUndoRedo = true;

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[377] Fix | Delete

window.clearTimeout( doingUndoRedoTimer );

[378] Fix | Delete

doingUndoRedoTimer = window.setTimeout( function() {

[379] Fix | Delete

doingUndoRedo = false;

[380] Fix | Delete

}, 500 );

[381] Fix | Delete

}

[382] Fix | Delete

} );

[383] Fix | Delete

[384] Fix | Delete

editor.addButton( 'wp_link_preview', {

[385] Fix | Delete

type: 'WPLinkPreview',

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onPostRender: function() {

[387] Fix | Delete

previewInstance = this;

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}

[389] Fix | Delete

} );

[390] Fix | Delete

[391] Fix | Delete

editor.addButton( 'wp_link_input', {

[392] Fix | Delete

type: 'WPLinkInput',

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onPostRender: function() {

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var element = this.getEl(),

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input = element.firstChild.nextSibling,

[396] Fix | Delete

$input, cache, last;

[397] Fix | Delete

[398] Fix | Delete

inputInstance = this;

[399] Fix | Delete

[400] Fix | Delete

if ( $ && $.ui && $.ui.autocomplete ) {

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$input = $( input );

[402] Fix | Delete

[403] Fix | Delete

$input.on( 'keydown', function() {

[404] Fix | Delete

$input.removeAttr( 'aria-activedescendant' );

[405] Fix | Delete

} )

[406] Fix | Delete

.autocomplete( {

[407] Fix | Delete

source: function( request, response ) {

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if ( last === request.term ) {

[409] Fix | Delete

response( cache );

[410] Fix | Delete

return;

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}

[412] Fix | Delete

[413] Fix | Delete

if ( /^https?:/.test( request.term ) || request.term.indexOf( '.' ) !== -1 ) {

[414] Fix | Delete

return response();

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}

[416] Fix | Delete

[417] Fix | Delete

$.post( window.ajaxurl, {

[418] Fix | Delete

action: 'wp-link-ajax',

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page: 1,

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search: request.term,

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_ajax_linking_nonce: $( '#_ajax_linking_nonce' ).val()

[422] Fix | Delete

}, function( data ) {

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cache = data;

[424] Fix | Delete

response( data );

[425] Fix | Delete

}, 'json' );

[426] Fix | Delete

[427] Fix | Delete

last = request.term;

[428] Fix | Delete

},

[429] Fix | Delete

focus: function( event, ui ) {

[430] Fix | Delete

$input.attr( 'aria-activedescendant', 'mce-wp-autocomplete-' + ui.item.ID );

[431] Fix | Delete

/*

[432] Fix | Delete

* Don't empty the URL input field, when using the arrow keys to

[433] Fix | Delete

* highlight items. See api.jqueryui.com/autocomplete/#event-focus

[434] Fix | Delete

*/

[435] Fix | Delete

event.preventDefault();

[436] Fix | Delete

},

[437] Fix | Delete

select: function( event, ui ) {

[438] Fix | Delete

$input.val( ui.item.permalink );

[439] Fix | Delete

$( element.firstChild.nextSibling.nextSibling ).val( ui.item.title );

[440] Fix | Delete

[441] Fix | Delete

if ( 9 === event.keyCode && typeof window.wpLinkL10n !== 'undefined' ) {

[442] Fix | Delete

// Audible confirmation message when a link has been selected.

[443] Fix | Delete

speak( window.wpLinkL10n.linkSelected );

[444] Fix | Delete

}

[445] Fix | Delete

[446] Fix | Delete

return false;

[447] Fix | Delete

},

[448] Fix | Delete

open: function() {

[449] Fix | Delete

$input.attr( 'aria-expanded', 'true' );

[450] Fix | Delete

editToolbar.blockHide = true;

[451] Fix | Delete

},

[452] Fix | Delete

close: function() {

[453] Fix | Delete

$input.attr( 'aria-expanded', 'false' );

[454] Fix | Delete

editToolbar.blockHide = false;

[455] Fix | Delete

},

[456] Fix | Delete

minLength: 2,

[457] Fix | Delete

position: {

[458] Fix | Delete

my: 'left top+2'

[459] Fix | Delete

},

[460] Fix | Delete

messages: {

[461] Fix | Delete

noResults: __( 'No results found.' ) ,

[462] Fix | Delete

results: function( number ) {

[463] Fix | Delete

return sprintf(

[464] Fix | Delete

/* translators: %d: Number of search results found. */

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_n(

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'%d result found. Use up and down arrow keys to navigate.',

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'%d results found. Use up and down arrow keys to navigate.',

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number

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),

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number

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);

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}

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}

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} ).autocomplete( 'instance' )._renderItem = function( ul, item ) {

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var fallbackTitle = ( typeof window.wpLinkL10n !== 'undefined' ) ? window.wpLinkL10n.noTitle : '',

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title = item.title ? item.title : fallbackTitle;

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return $( '<li role="option" id="mce-wp-autocomplete-' + item.ID + '">' )

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.append( '<span>' + title + '</span>&nbsp;<span class="wp-editor-float-right">' + item.info + '</span>' )

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.appendTo( ul );

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};

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$input.attr( {

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'role': 'combobox',

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'aria-autocomplete': 'list',

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'aria-expanded': 'false',

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'aria-owns': $input.autocomplete( 'widget' ).attr( 'id' )

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} )

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.on( 'focus', function() {

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var inputValue = $input.val();

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/*

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* Don't trigger a search if the URL field already has a link or is empty.

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* Also, avoids screen readers announce `No search results`.

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*/

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if ( inputValue && ! /^https?:/.test( inputValue ) ) {

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$input.autocomplete( 'search' );

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}

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} )

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