/**

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* @output wp-includes/js/wplink.js

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*/

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/* global wpLink */

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( function( $, wpLinkL10n, wp ) {

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var editor, searchTimer, River, Query, correctedURL,

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emailRegexp = /^[A-Z0-9._%+-]+@[A-Z0-9.-]+\.[A-Z]{2,63}$/i,

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urlRegexp = /^(https?|ftp):\/\/[A-Z0-9.-]+\.[A-Z]{2,63}[^ "]*$/i,

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inputs = {},

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rivers = {},

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isTouch = ( 'ontouchend' in document );

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function getLink() {

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if ( editor ) {

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return editor.$( 'a[data-wplink-edit="true"]' );

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}

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return null;

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}

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window.wpLink = {

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timeToTriggerRiver: 150,

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minRiverAJAXDuration: 200,

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riverBottomThreshold: 5,

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keySensitivity: 100,

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lastSearch: '',

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textarea: '',

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modalOpen: false,

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init: function() {

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inputs.wrap = $('#wp-link-wrap');

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inputs.dialog = $( '#wp-link' );

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inputs.backdrop = $( '#wp-link-backdrop' );

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inputs.submit = $( '#wp-link-submit' );

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inputs.close = $( '#wp-link-close' );

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// Input.

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inputs.text = $( '#wp-link-text' );

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inputs.url = $( '#wp-link-url' );

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inputs.nonce = $( '#_ajax_linking_nonce' );

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inputs.openInNewTab = $( '#wp-link-target' );

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inputs.search = $( '#wp-link-search' );

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// Build rivers.

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rivers.search = new River( $( '#search-results' ) );

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rivers.recent = new River( $( '#most-recent-results' ) );

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rivers.elements = inputs.dialog.find( '.query-results' );

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// Get search notice text.

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inputs.queryNotice = $( '#query-notice-message' );

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inputs.queryNoticeTextDefault = inputs.queryNotice.find( '.query-notice-default' );

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inputs.queryNoticeTextHint = inputs.queryNotice.find( '.query-notice-hint' );

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// Bind event handlers.

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inputs.dialog.on( 'keydown', wpLink.keydown );

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inputs.dialog.on( 'keyup', wpLink.keyup );

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inputs.submit.on( 'click', function( event ) {

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event.preventDefault();

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wpLink.update();

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});

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inputs.close.add( inputs.backdrop ).add( '#wp-link-cancel button' ).on( 'click', function( event ) {

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event.preventDefault();

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wpLink.close();

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});

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rivers.elements.on( 'river-select', wpLink.updateFields );

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// Display 'hint' message when search field or 'query-results' box are focused.

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inputs.search.on( 'focus.wplink', function() {

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inputs.queryNoticeTextDefault.hide();

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inputs.queryNoticeTextHint.removeClass( 'screen-reader-text' ).show();

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} ).on( 'blur.wplink', function() {

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inputs.queryNoticeTextDefault.show();

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inputs.queryNoticeTextHint.addClass( 'screen-reader-text' ).hide();

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} );

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inputs.search.on( 'keyup input', function() {

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window.clearTimeout( searchTimer );

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searchTimer = window.setTimeout( function() {

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wpLink.searchInternalLinks();

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}, 500 );

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});

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inputs.url.on( 'paste', function() {

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setTimeout( wpLink.correctURL, 0 );

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} );

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inputs.url.on( 'blur', wpLink.correctURL );

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},

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// If URL wasn't corrected last time and doesn't start with http:, https:, ? # or /, prepend http://.

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correctURL: function () {

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var url = $.trim( inputs.url.val() );

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

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inputs.url.val( 'http://' + url );

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correctedURL = url;

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}

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},

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open: function( editorId, url, text ) {

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var ed,

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$body = $( document.body );

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$body.addClass( 'modal-open' );

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wpLink.modalOpen = true;

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wpLink.range = null;

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if ( editorId ) {

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window.wpActiveEditor = editorId;

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}

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if ( ! window.wpActiveEditor ) {

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return;

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}

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this.textarea = $( '#' + window.wpActiveEditor ).get( 0 );

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

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// Make sure the link wrapper is the last element in the body,

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// or the inline editor toolbar may show above the backdrop.

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$body.append( inputs.backdrop, inputs.wrap );

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ed = window.tinymce.get( window.wpActiveEditor );

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if ( ed && ! ed.isHidden() ) {

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editor = ed;

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} else {

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editor = null;

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}

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}

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if ( ! wpLink.isMCE() && document.selection ) {

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this.textarea.focus();

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this.range = document.selection.createRange();

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}

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inputs.wrap.show();

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inputs.backdrop.show();

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wpLink.refresh( url, text );

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$( document ).trigger( 'wplink-open', inputs.wrap );

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},

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isMCE: function() {

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return editor && ! editor.isHidden();

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},

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refresh: function( url, text ) {

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var linkText = '';

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// Refresh rivers (clear links, check visibility).

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rivers.search.refresh();

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rivers.recent.refresh();

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if ( wpLink.isMCE() ) {

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wpLink.mceRefresh( url, text );

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} else {

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// For the Text editor the "Link text" field is always shown.

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if ( ! inputs.wrap.hasClass( 'has-text-field' ) ) {

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inputs.wrap.addClass( 'has-text-field' );

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}

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if ( document.selection ) {

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// Old IE.

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linkText = document.selection.createRange().text || text || '';

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} else if ( typeof this.textarea.selectionStart !== 'undefined' &&

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( this.textarea.selectionStart !== this.textarea.selectionEnd ) ) {

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// W3C.

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text = this.textarea.value.substring( this.textarea.selectionStart, this.textarea.selectionEnd ) || text || '';

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}

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inputs.text.val( text );

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wpLink.setDefaultValues();

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}

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if ( isTouch ) {

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// Close the onscreen keyboard.

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inputs.url.trigger( 'focus' ).trigger( 'blur' );

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} else {

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/*

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* Focus the URL field and highlight its contents.

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* If this is moved above the selection changes,

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* IE will show a flashing cursor over the dialog.

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*/

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window.setTimeout( function() {

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inputs.url[0].select();

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inputs.url.trigger( 'focus' );

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} );

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}

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// Load the most recent results if this is the first time opening the panel.

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if ( ! rivers.recent.ul.children().length ) {

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rivers.recent.ajax();

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}

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correctedURL = inputs.url.val().replace( /^http:\/\//, '' );

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},

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hasSelectedText: function( linkNode ) {

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var node, nodes, i, html = editor.selection.getContent();

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// Partial html and not a fully selected anchor element.

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if ( /</.test( html ) && ( ! /^<a [^>]+>[^<]+<\/a>$/.test( html ) || html.indexOf('href=') === -1 ) ) {

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return false;

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}

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if ( linkNode.length ) {

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nodes = linkNode[0].childNodes;

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if ( ! nodes || ! nodes.length ) {

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return false;

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}

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for ( i = nodes.length - 1; i >= 0; i-- ) {

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node = nodes[i];

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if ( node.nodeType != 3 && ! window.tinymce.dom.BookmarkManager.isBookmarkNode( node ) ) {

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return false;

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}

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}

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}

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return true;

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},

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mceRefresh: function( searchStr, text ) {

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var linkText, href,

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linkNode = getLink(),

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onlyText = this.hasSelectedText( linkNode );

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if ( linkNode.length ) {

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linkText = linkNode.text();

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href = linkNode.attr( 'href' );

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if ( ! $.trim( linkText ) ) {

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linkText = text || '';

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}

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if ( searchStr && ( urlRegexp.test( searchStr ) || emailRegexp.test( searchStr ) ) ) {

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href = searchStr;

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}

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if ( href !== '_wp_link_placeholder' ) {

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inputs.url.val( href );

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inputs.openInNewTab.prop( 'checked', '_blank' === linkNode.attr( 'target' ) );

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inputs.submit.val( wpLinkL10n.update );

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} else {

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this.setDefaultValues( linkText );

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}

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if ( searchStr && searchStr !== href ) {

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// The user has typed something in the inline dialog. Trigger a search with it.

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inputs.search.val( searchStr );

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} else {

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inputs.search.val( '' );

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}

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// Always reset the search.

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window.setTimeout( function() {

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wpLink.searchInternalLinks();

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} );

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} else {

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linkText = editor.selection.getContent({ format: 'text' }) || text || '';

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this.setDefaultValues( linkText );

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}

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if ( onlyText ) {

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inputs.text.val( linkText );

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inputs.wrap.addClass( 'has-text-field' );

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} else {

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inputs.text.val( '' );

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inputs.wrap.removeClass( 'has-text-field' );

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}

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},

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close: function( reset ) {

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$( document.body ).removeClass( 'modal-open' );

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wpLink.modalOpen = false;

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if ( reset !== 'noReset' ) {

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if ( ! wpLink.isMCE() ) {

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wpLink.textarea.focus();

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if ( wpLink.range ) {

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wpLink.range.moveToBookmark( wpLink.range.getBookmark() );

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wpLink.range.select();

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}

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} else {

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if ( editor.plugins.wplink ) {

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editor.plugins.wplink.close();

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}

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editor.focus();

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}

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}

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inputs.backdrop.hide();

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inputs.wrap.hide();

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correctedURL = false;

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$( document ).trigger( 'wplink-close', inputs.wrap );

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},

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getAttrs: function() {

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wpLink.correctURL();

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return {

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href: $.trim( inputs.url.val() ),

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target: inputs.openInNewTab.prop( 'checked' ) ? '_blank' : null

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};

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},

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buildHtml: function(attrs) {

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var html = '<a href="' + attrs.href + '"';

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if ( attrs.target ) {

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html += ' rel="noopener" target="' + attrs.target + '"';

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}

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return html + '>';

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},

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update: function() {

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if ( wpLink.isMCE() ) {

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wpLink.mceUpdate();

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} else {

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wpLink.htmlUpdate();

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}

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},

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htmlUpdate: function() {

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var attrs, text, html, begin, end, cursor, selection,

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textarea = wpLink.textarea;

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if ( ! textarea ) {

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return;

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}

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attrs = wpLink.getAttrs();

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text = inputs.text.val();

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

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parser.href = attrs.href;

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

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attrs.href = '';

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}

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// If there's no href, return.

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if ( ! attrs.href ) {

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return;

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}

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html = wpLink.buildHtml(attrs);

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// Insert HTML.

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if ( document.selection && wpLink.range ) {

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// IE.

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// Note: If no text is selected, IE will not place the cursor

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// inside the closing tag.

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textarea.focus();

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wpLink.range.text = html + ( text || wpLink.range.text ) + '</a>';

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wpLink.range.moveToBookmark( wpLink.range.getBookmark() );

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wpLink.range.select();

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wpLink.range = null;

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} else if ( typeof textarea.selectionStart !== 'undefined' ) {

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// W3C.

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begin = textarea.selectionStart;

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end = textarea.selectionEnd;

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selection = text || textarea.value.substring( begin, end );

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html = html + selection + '</a>';

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cursor = begin + html.length;

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// If no text is selected, place the cursor inside the closing tag.

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if ( begin === end && ! selection ) {

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cursor -= 4;

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}

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textarea.value = (

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textarea.value.substring( 0, begin ) +

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html +

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textarea.value.substring( end, textarea.value.length )

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);

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// Update cursor position.

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textarea.selectionStart = textarea.selectionEnd = cursor;

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}

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wpLink.close();

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textarea.focus();

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$( textarea ).trigger( 'change' );

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

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wp.a11y.speak( wpLinkL10n.linkInserted );

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},

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mceUpdate: function() {

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var attrs = wpLink.getAttrs(),

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$link, text, hasText;

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

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parser.href = attrs.href;

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

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attrs.href = '';

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}

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if ( ! attrs.href ) {

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editor.execCommand( 'unlink' );

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wpLink.close();

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return;

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}

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$link = getLink();

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editor.undoManager.transact( function() {

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if ( ! $link.length ) {

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editor.execCommand( 'mceInsertLink', false, { href: '_wp_link_placeholder', 'data-wp-temp-link': 1 } );

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$link = editor.$( 'a[data-wp-temp-link="1"]' ).removeAttr( 'data-wp-temp-link' );

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hasText = $.trim( $link.text() );

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}

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if ( ! $link.length ) {

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editor.execCommand( 'unlink' );

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} else {

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if ( inputs.wrap.hasClass( 'has-text-field' ) ) {

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text = inputs.text.val();

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if ( text ) {

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$link.text( text );

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} else if ( ! hasText ) {

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$link.text( attrs.href );

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}

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}

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attrs['data-wplink-edit'] = null;

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attrs['data-mce-href'] = attrs.href;

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$link.attr( attrs );

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}

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} );

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wpLink.close( 'noReset' );

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editor.focus();

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if ( $link.length ) {

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editor.selection.select( $link[0] );

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if ( editor.plugins.wplink ) {

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editor.plugins.wplink.checkLink( $link[0] );

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}

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}

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editor.nodeChanged();

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

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wp.a11y.speak( wpLinkL10n.linkInserted );

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},

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updateFields: function( e, li ) {

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inputs.url.val( li.children( '.item-permalink' ).val() );

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if ( inputs.wrap.hasClass( 'has-text-field' ) && ! inputs.text.val() ) {

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inputs.text.val( li.children( '.item-title' ).text() );

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}

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},

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getUrlFromSelection: function( selection ) {

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if ( ! selection ) {

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if ( this.isMCE() ) {

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

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} else if ( document.selection && wpLink.range ) {

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selection = wpLink.range.text;

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} else if ( typeof this.textarea.selectionStart !== 'undefined' ) {

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selection = this.textarea.value.substring( this.textarea.selectionStart, this.textarea.selectionEnd );

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}

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}

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selection = $.trim( selection );

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if ( selection && emailRegexp.test( selection ) ) {

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// Selection is email address.

[488] Fix | Delete

return 'mailto:' + selection;

[489] Fix | Delete

} else if ( selection && urlRegexp.test( selection ) ) {

[490] Fix | Delete

// Selection is URL.

[491] Fix | Delete

return selection.replace( /&amp;|&#0?38;/gi, '&' );

[492] Fix | Delete

}

[493] Fix | Delete

[494] Fix | Delete

return '';

[495] Fix | Delete

},

[496] Fix | Delete

[497] Fix | Delete

setDefaultValues: function( selection ) {

[498] Fix | Delete

inputs.url.val( this.getUrlFromSelection( selection ) );

[499] Fix | Delete