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Edit File : editor.js \| Size : 43.98 KB
/** * @output wp-admin/js/editor.js / window.wp = window.wp \|\| {}; ( function( $, wp ) { wp.editor = wp.editor \|\| {}; /* * Utility functions for the editor. * * @since 2.5.0 / function SwitchEditors() { var tinymce, $$, exports = {}; function init() { if ( ! tinymce && window.tinymce ) { tinymce = window.tinymce; $$ = tinymce.$; /* * Handles onclick events for the Visual/Code tabs. * * @since 4.3.0 * * @return {void} / $$( document ).on( 'click', function( event ) { var id, mode, target = $$( event.target ); if ( target.hasClass( 'wp-switch-editor' ) ) { id = target.attr( 'data-wp-editor-id' ); mode = target.hasClass( 'switch-tmce' ) ? 'tmce' : 'html'; switchEditor( id, mode ); } }); } } /* * Returns the height of the editor toolbar(s) in px. * * @since 3.9.0 * * @param {Object} editor The TinyMCE editor. * @return {number} If the height is between 10 and 200 return the height, * else return 30. / function getToolbarHeight( editor ) { var node = $$( '.mce-toolbar-grp', editor.getContainer() )[0], height = node && node.clientHeight; if ( height && height > 10 && height < 200 ) { return parseInt( height, 10 ); } return 30; } /* * Switches the editor between Visual and Code mode. * * @since 2.5.0 * * @memberof switchEditors * * @param {string} id The id of the editor you want to change the editor mode for. Default: `content`. * @param {string} mode The mode you want to switch to. Default: `toggle`. * @return {void} / function switchEditor( id, mode ) { id = id \|\| 'content'; mode = mode \|\| 'toggle'; var editorHeight, toolbarHeight, iframe, editor = tinymce.get( id ), wrap = $$( '#wp-' + id + '-wrap' ), htmlSwitch = wrap.find( '.switch-tmce' ), tmceSwitch = wrap.find( '.switch-html' ), $textarea = $$( '#' + id ), textarea = $textarea[0]; if ( 'toggle' === mode ) { if ( editor && ! editor.isHidden() ) { mode = 'html'; } else { mode = 'tmce'; } } if ( 'tmce' === mode \|\| 'tinymce' === mode ) { // If the editor is visible we are already in `tinymce` mode. if ( editor && ! editor.isHidden() ) { return false; } // Insert closing tags for any open tags in QuickTags. if ( typeof( window.QTags ) !== 'undefined' ) { window.QTags.closeAllTags( id ); } editorHeight = parseInt( textarea.style.height, 10 ) \|\| 0; addHTMLBookmarkInTextAreaContent( $textarea ); if ( editor ) { editor.show(); // No point to resize the iframe in iOS. if ( ! tinymce.Env.iOS && editorHeight ) { toolbarHeight = getToolbarHeight( editor ); editorHeight = editorHeight - toolbarHeight + 14; // Sane limit for the editor height. if ( editorHeight > 50 && editorHeight < 5000 ) { editor.theme.resizeTo( null, editorHeight ); } } focusHTMLBookmarkInVisualEditor( editor ); } else { tinymce.init( window.tinyMCEPreInit.mceInit[ id ] ); } wrap.removeClass( 'html-active' ).addClass( 'tmce-active' ); tmceSwitch.attr( 'aria-pressed', false ); htmlSwitch.attr( 'aria-pressed', true ); $textarea.attr( 'aria-hidden', true ); window.setUserSetting( 'editor', 'tinymce' ); } else if ( 'html' === mode ) { // If the editor is hidden (Quicktags is shown) we don't need to switch. if ( editor && editor.isHidden() ) { return false; } if ( editor ) { // Don't resize the textarea in iOS. // The iframe is forced to 100% height there, we shouldn't match it. if ( ! tinymce.Env.iOS ) { iframe = editor.iframeElement; editorHeight = iframe ? parseInt( iframe.style.height, 10 ) : 0; if ( editorHeight ) { toolbarHeight = getToolbarHeight( editor ); editorHeight = editorHeight + toolbarHeight - 14; // Sane limit for the textarea height. if ( editorHeight > 50 && editorHeight < 5000 ) { textarea.style.height = editorHeight + 'px'; } } } var selectionRange = null; selectionRange = findBookmarkedPosition( editor ); editor.hide(); if ( selectionRange ) { selectTextInTextArea( editor, selectionRange ); } } else { // There is probably a JS error on the page. // The TinyMCE editor instance doesn't exist. Show the textarea. $textarea.css({ 'display': '', 'visibility': '' }); } wrap.removeClass( 'tmce-active' ).addClass( 'html-active' ); tmceSwitch.attr( 'aria-pressed', true ); htmlSwitch.attr( 'aria-pressed', false ); $textarea.attr( 'aria-hidden', false ); window.setUserSetting( 'editor', 'html' ); } } /* * Checks if a cursor is inside an HTML tag or comment. * * In order to prevent breaking HTML tags when selecting text, the cursor * must be moved to either the start or end of the tag. * * This will prevent the selection marker to be inserted in the middle of an HTML tag. * * This function gives information whether the cursor is inside a tag or not, as well as * the tag type, if it is a closing tag and check if the HTML tag is inside a shortcode tag, * e.g. `[caption]<img.../>..`. * * @param {string} content The test content where the cursor is. * @param {number} cursorPosition The cursor position inside the content. * * @return {(null\|Object)} Null if cursor is not in a tag, Object if the cursor is inside a tag. / function getContainingTagInfo( content, cursorPosition ) { var lastLtPos = content.lastIndexOf( '<', cursorPosition - 1 ), lastGtPos = content.lastIndexOf( '>', cursorPosition ); if ( lastLtPos > lastGtPos \|\| content.substr( cursorPosition, 1 ) === '>' ) { // Find what the tag is. var tagContent = content.substr( lastLtPos ), tagMatch = tagContent.match( /<\s(\/)?(\w+\|\!-{2}.-{2})/ ); if ( ! tagMatch ) { return null; } var tagType = tagMatch[2], closingGt = tagContent.indexOf( '>' ); return { ltPos: lastLtPos, gtPos: lastLtPos + closingGt + 1, // Offset by one to get the position _after_ the character. tagType: tagType, isClosingTag: !! tagMatch[1] }; } return null; } /* * Checks if the cursor is inside a shortcode * * If the cursor is inside a shortcode wrapping tag, e.g. `[caption]` it's better to * move the selection marker to before or after the shortcode. * * For example `[caption]` rewrites/removes anything that's between the `[caption]` tag and the * `<img/>` tag inside. * * `[caption]<span>ThisIsGone</span><img .../>[caption]` * * Moving the selection to before or after the short code is better, since it allows to select * something, instead of just losing focus and going to the start of the content. * * @param {string} content The text content to check against. * @param {number} cursorPosition The cursor position to check. * * @return {(undefined\|Object)} Undefined if the cursor is not wrapped in a shortcode tag. * Information about the wrapping shortcode tag if it's wrapped in one. / function getShortcodeWrapperInfo( content, cursorPosition ) { var contentShortcodes = getShortCodePositionsInText( content ); for ( var i = 0; i < contentShortcodes.length; i++ ) { var element = contentShortcodes[ i ]; if ( cursorPosition >= element.startIndex && cursorPosition <= element.endIndex ) { return element; } } } /* * Gets a list of unique shortcodes or shortcode-lookalikes in the content. * * @param {string} content The content we want to scan for shortcodes. / function getShortcodesInText( content ) { var shortcodes = content.match( /\[+([\w_-])+/g ), result = []; if ( shortcodes ) { for ( var i = 0; i < shortcodes.length; i++ ) { var shortcode = shortcodes[ i ].replace( /^\[+/g, '' ); if ( result.indexOf( shortcode ) === -1 ) { result.push( shortcode ); } } } return result; } /* * Gets all shortcodes and their positions in the content * * This function returns all the shortcodes that could be found in the textarea content * along with their character positions and boundaries. * * This is used to check if the selection cursor is inside the boundaries of a shortcode * and move it accordingly, to avoid breakage. * * @link adjustTextAreaSelectionCursors * * The information can also be used in other cases when we need to lookup shortcode data, * as it's already structured! * * @param {string} content The content we want to scan for shortcodes / function getShortCodePositionsInText( content ) { var allShortcodes = getShortcodesInText( content ), shortcodeInfo; if ( allShortcodes.length === 0 ) { return []; } var shortcodeDetailsRegexp = wp.shortcode.regexp( allShortcodes.join( '\|' ) ), shortcodeMatch, // Define local scope for the variable to be used in the loop below. shortcodesDetails = []; while ( shortcodeMatch = shortcodeDetailsRegexp.exec( content ) ) { /* * Check if the shortcode should be shown as plain text. * * This corresponds to the [[shortcode]] syntax, which doesn't parse the shortcode * and just shows it as text. / var showAsPlainText = shortcodeMatch[1] === '['; shortcodeInfo = { shortcodeName: shortcodeMatch[2], showAsPlainText: showAsPlainText, startIndex: shortcodeMatch.index, endIndex: shortcodeMatch.index + shortcodeMatch[0].length, length: shortcodeMatch[0].length }; shortcodesDetails.push( shortcodeInfo ); } /* * Get all URL matches, and treat them as embeds. * * Since there isn't a good way to detect if a URL by itself on a line is a previewable * object, it's best to treat all of them as such. * * This means that the selection will capture the whole URL, in a similar way shrotcodes * are treated. / var urlRegexp = new RegExp( '(^\|[\\n\\r][\\n\\r]\|<p>)(https?:\\/\\/[^\s"]+?)(<\\/p>\s\|[\\n\\r][\\n\\r]\|$)', 'gi' ); while ( shortcodeMatch = urlRegexp.exec( content ) ) { shortcodeInfo = { shortcodeName: 'url', showAsPlainText: false, startIndex: shortcodeMatch.index, endIndex: shortcodeMatch.index + shortcodeMatch[ 0 ].length, length: shortcodeMatch[ 0 ].length, urlAtStartOfContent: shortcodeMatch[ 1 ] === '', urlAtEndOfContent: shortcodeMatch[ 3 ] === '' }; shortcodesDetails.push( shortcodeInfo ); } return shortcodesDetails; } /** * Generate a cursor marker element to be inserted in the content. * * `span` seems to be the least destructive element that can be used. * * Using DomQuery syntax to create it, since it's used as both text and as a DOM element. * * @param {Object} domLib DOM library instance. * @param {string} content The content to insert into the cursor marker element. / function getCursorMarkerSpan( domLib, content ) { return domLib( '<span>' ).css( { display: 'inline-block', width: 0, overflow: 'hidden', 'line-height': 0 } ) .html( content ? content : '' ); } /* * Gets adjusted selection cursor positions according to HTML tags, comments, and shortcodes. * * Shortcodes and HTML codes are a bit of a special case when selecting, since they may render * content in Visual mode. If we insert selection markers somewhere inside them, it's really possible * to break the syntax and render the HTML tag or shortcode broken. * * @link getShortcodeWrapperInfo * * @param {string} content Textarea content that the cursors are in * @param {{cursorStart: number, cursorEnd: number}} cursorPositions Cursor start and end positions * * @return {{cursorStart: number, cursorEnd: number}} / function adjustTextAreaSelectionCursors( content, cursorPositions ) { var voidElements = [ 'area', 'base', 'br', 'col', 'embed', 'hr', 'img', 'input', 'keygen', 'link', 'meta', 'param', 'source', 'track', 'wbr' ]; var cursorStart = cursorPositions.cursorStart, cursorEnd = cursorPositions.cursorEnd, // Check if the cursor is in a tag and if so, adjust it. isCursorStartInTag = getContainingTagInfo( content, cursorStart ); if ( isCursorStartInTag ) { /* * Only move to the start of the HTML tag (to select the whole element) if the tag * is part of the voidElements list above. * * This list includes tags that are self-contained and don't need a closing tag, according to the * HTML5 specification. * * This is done in order to make selection of text a bit more consistent when selecting text in * `<p>` tags or such. * * In cases where the tag is not a void element, the cursor is put to the end of the tag, * so it's either between the opening and closing tag elements or after the closing tag. / if ( voidElements.indexOf( isCursorStartInTag.tagType ) !== -1 ) { cursorStart = isCursorStartInTag.ltPos; } else { cursorStart = isCursorStartInTag.gtPos; } } var isCursorEndInTag = getContainingTagInfo( content, cursorEnd ); if ( isCursorEndInTag ) { cursorEnd = isCursorEndInTag.gtPos; } var isCursorStartInShortcode = getShortcodeWrapperInfo( content, cursorStart ); if ( isCursorStartInShortcode && ! isCursorStartInShortcode.showAsPlainText ) { /* * If a URL is at the start or the end of the content, * the selection doesn't work, because it inserts a marker in the text, * which breaks the embedURL detection. * * The best way to avoid that and not modify the user content is to * adjust the cursor to either after or before URL. / if ( isCursorStartInShortcode.urlAtStartOfContent ) { cursorStart = isCursorStartInShortcode.endIndex; } else { cursorStart = isCursorStartInShortcode.startIndex; } } var isCursorEndInShortcode = getShortcodeWrapperInfo( content, cursorEnd ); if ( isCursorEndInShortcode && ! isCursorEndInShortcode.showAsPlainText ) { if ( isCursorEndInShortcode.urlAtEndOfContent ) { cursorEnd = isCursorEndInShortcode.startIndex; } else { cursorEnd = isCursorEndInShortcode.endIndex; } } return { cursorStart: cursorStart, cursorEnd: cursorEnd }; } /* * Adds text selection markers in the editor textarea. * * Adds selection markers in the content of the editor `textarea`. * The method directly manipulates the `textarea` content, to allow TinyMCE plugins * to run after the markers are added. * * @param {Object} $textarea TinyMCE's textarea wrapped as a DomQuery object / function addHTMLBookmarkInTextAreaContent( $textarea ) { if ( ! $textarea \|\| ! $textarea.length ) { // If no valid $textarea object is provided, there's nothing we can do. return; } var textArea = $textarea[0], textAreaContent = textArea.value, adjustedCursorPositions = adjustTextAreaSelectionCursors( textAreaContent, { cursorStart: textArea.selectionStart, cursorEnd: textArea.selectionEnd } ), htmlModeCursorStartPosition = adjustedCursorPositions.cursorStart, htmlModeCursorEndPosition = adjustedCursorPositions.cursorEnd, mode = htmlModeCursorStartPosition !== htmlModeCursorEndPosition ? 'range' : 'single', selectedText = null, cursorMarkerSkeleton = getCursorMarkerSpan( $$, '' ).attr( 'data-mce-type','bookmark' ); if ( mode === 'range' ) { var markedText = textArea.value.slice( htmlModeCursorStartPosition, htmlModeCursorEndPosition ), bookMarkEnd = cursorMarkerSkeleton.clone().addClass( 'mce_SELRES_end' ); selectedText = [ markedText, bookMarkEnd[0].outerHTML ].join( '' ); } textArea.value = [ textArea.value.slice( 0, htmlModeCursorStartPosition ), // Text until the cursor/selection position. cursorMarkerSkeleton.clone() // Cursor/selection start marker. .addClass( 'mce_SELRES_start' )[0].outerHTML, selectedText, // Selected text with end cursor/position marker. textArea.value.slice( htmlModeCursorEndPosition ) // Text from last cursor/selection position to end. ].join( '' ); } /* * Focuses the selection markers in Visual mode. * * The method checks for existing selection markers inside the editor DOM (Visual mode) * and create a selection between the two nodes using the DOM `createRange` selection API. * * If there is only a single node, select only the single node through TinyMCE's selection API * * @param {Object} editor TinyMCE editor instance. / function focusHTMLBookmarkInVisualEditor( editor ) { var startNode = editor.$( '.mce_SELRES_start' ).attr( 'data-mce-bogus', 1 ), endNode = editor.$( '.mce_SELRES_end' ).attr( 'data-mce-bogus', 1 ); if ( startNode.length ) { editor.focus(); if ( ! endNode.length ) { editor.selection.select( startNode[0] ); } else { var selection = editor.getDoc().createRange(); selection.setStartAfter( startNode[0] ); selection.setEndBefore( endNode[0] ); editor.selection.setRng( selection ); } } scrollVisualModeToStartElement( editor, startNode ); removeSelectionMarker( startNode ); removeSelectionMarker( endNode ); editor.save(); } /* * Removes selection marker and the parent node if it is an empty paragraph. * * By default TinyMCE wraps loose inline tags in a `<p>`. * When removing selection markers an empty `<p>` may be left behind, remove it. * * @param {Object} $marker The marker to be removed from the editor DOM, wrapped in an instance of `editor.$` / function removeSelectionMarker( $marker ) { var $markerParent = $marker.parent(); $marker.remove(); //Remove empty paragraph left over after removing the marker. if ( $markerParent.is( 'p' ) && ! $markerParent.children().length && ! $markerParent.text() ) { $markerParent.remove(); } } /* * Scrolls the content to place the selected element in the center of the screen. * * Takes an element, that is usually the selection start element, selected in * `focusHTMLBookmarkInVisualEditor()` and scrolls the screen so the element appears roughly * in the middle of the screen. * * I order to achieve the proper positioning, the editor media bar and toolbar are subtracted * from the window height, to get the proper viewport window, that the user sees. * * @param {Object} editor TinyMCE editor instance. * @param {Object} element HTMLElement that should be scrolled into view. / function scrollVisualModeToStartElement( editor, element ) { var elementTop = editor.$( element ).offset().top, TinyMCEContentAreaTop = editor.$( editor.getContentAreaContainer() ).offset().top, toolbarHeight = getToolbarHeight( editor ), edTools = $( '#wp-content-editor-tools' ), edToolsHeight = 0, edToolsOffsetTop = 0, $scrollArea; if ( edTools.length ) { edToolsHeight = edTools.height(); edToolsOffsetTop = edTools.offset().top; } var windowHeight = window.innerHeight \|\| document.documentElement.clientHeight \|\| document.body.clientHeight, selectionPosition = TinyMCEContentAreaTop + elementTop, visibleAreaHeight = windowHeight - ( edToolsHeight + toolbarHeight ); // There's no need to scroll if the selection is inside the visible area. if ( selectionPosition < visibleAreaHeight ) { return; } /* * The minimum scroll height should be to the top of the editor, to offer a consistent * experience. * * In order to find the top of the editor, we calculate the offset of `#wp-content-editor-tools` and * subtracting the height. This gives the scroll position where the top of the editor tools aligns with * the top of the viewport (under the Master Bar) / var adjustedScroll; if ( editor.settings.wp_autoresize_on ) { $scrollArea = $( 'html,body' ); adjustedScroll = Math.max( selectionPosition - visibleAreaHeight / 2, edToolsOffsetTop - edToolsHeight ); } else { $scrollArea = $( editor.contentDocument ).find( 'html,body' ); adjustedScroll = elementTop; } $scrollArea.animate( { scrollTop: parseInt( adjustedScroll, 10 ) }, 100 ); } /* * This method was extracted from the `SaveContent` hook in * `wp-includes/js/tinymce/plugins/wordpress/plugin.js`. * * It's needed here, since the method changes the content a bit, which confuses the cursor position. * * @param {Object} event TinyMCE event object. / function fixTextAreaContent( event ) { // Keep empty paragraphs :( event.content = event.content.replace( /<p>(?:<br ?\/?>\|\u00a0\|\uFEFF\| )<\/p>/g, '<p> </p>' ); } /** * Finds the current selection position in the Visual editor. * * Find the current selection in the Visual editor by inserting marker elements at the start * and end of the selection. * * Uses the standard DOM selection API to achieve that goal. * * Check the notes in the comments in the code below for more information on some gotchas * and why this solution was chosen. * * @param {Object} editor The editor where we must find the selection. * @return {(null\|Object)} The selection range position in the editor. / function findBookmarkedPosition( editor ) { // Get the TinyMCE `window` reference, since we need to access the raw selection. var TinyMCEWindow = editor.getWin(), selection = TinyMCEWindow.getSelection(); if ( ! selection \|\| selection.rangeCount < 1 ) { // no selection, no need to continue. return; } /* * The ID is used to avoid replacing user generated content, that may coincide with the * format specified below. * @type {string} / var selectionID = 'SELRES_' + Math.random(); /* * Create two marker elements that will be used to mark the start and the end of the range. * * The elements have hardcoded style that makes them invisible. This is done to avoid seeing * random content flickering in the editor when switching between modes. / var spanSkeleton = getCursorMarkerSpan( editor.$, selectionID ), startElement = spanSkeleton.clone().addClass( 'mce_SELRES_start' ), endElement = spanSkeleton.clone().addClass( 'mce_SELRES_end' ); /* * Inspired by: * @link https://stackoverflow.com/a/17497803/153310 * * Why do it this way and not with TinyMCE's bookmarks? * * TinyMCE's bookmarks are very nice when working with selections and positions, BUT * there is no way to determine the precise position of the bookmark when switching modes, since * TinyMCE does some serialization of the content, to fix things like shortcodes, run plugins, prettify * HTML code and so on. In this process, the bookmark markup gets lost. * * If we decide to hook right after the bookmark is added, we can see where the bookmark is in the raw HTML * in TinyMCE. Unfortunately this state is before the serialization, so any visual markup in the content will * throw off the positioning. * * To avoid this, we insert two custom `span`s that will serve as the markers at the beginning and end of the * selection. * * Why not use TinyMCE's selection API or the DOM API to wrap the contents? Because if we do that, this creates * a new node, which is inserted in the dom. Now this will be fine, if we worked with fixed selections to * full nodes. Unfortunately in our case, the user can select whatever they like, which means that the * selection may start in the middle of one node and end in the middle of a completely different one. If we * wrap the selection in another node, this will create artifacts in the content. * * Using the method below, we insert the custom `span` nodes at the start and at the end of the selection. * This helps us not break the content and also gives us the option to work with multi-node selections without * breaking the markup. / var range = selection.getRangeAt( 0 ), startNode = range.startContainer, startOffset = range.startOffset, boundaryRange = range.cloneRange(); /* * If the selection is on a shortcode with Live View, TinyMCE creates a bogus markup, * which we have to account for. / if ( editor.$( startNode ).parents( '.mce-offscreen-selection' ).length > 0 ) { startNode = editor.$( '[data-mce-selected]' )[0]; /* * Marking the start and end element with `data-mce-object-selection` helps * discern when the selected object is a Live Preview selection. * * This way we can adjust the selection to properly select only the content, ignoring * whitespace inserted around the selected object by the Editor. / startElement.attr( 'data-mce-object-selection', 'true' ); endElement.attr( 'data-mce-object-selection', 'true' ); editor.$( startNode ).before( startElement[0] ); editor.$( startNode ).after( endElement[0] ); } else { boundaryRange.collapse( false ); boundaryRange.insertNode( endElement[0] ); boundaryRange.setStart( startNode, startOffset ); boundaryRange.collapse( true ); boundaryRange.insertNode( startElement[0] ); range.setStartAfter( startElement[0] ); range.setEndBefore( endElement[0] ); selection.removeAllRanges(); selection.addRange( range ); } /* * Now the editor's content has the start/end nodes. * * Unfortunately the content goes through some more changes after this step, before it gets inserted * in the `textarea`. This means that we have to do some minor cleanup on our own here. / editor.on( 'GetContent', fixTextAreaContent ); var content = removep( editor.getContent() ); editor.off( 'GetContent', fixTextAreaContent ); startElement.remove(); endElement.remove(); var startRegex = new RegExp( '<span[^>]\\sclass="mce_SELRES_start"[^>]+>\\s' + selectionID + '[^<]<\\/span>(\\s)' ); var endRegex = new RegExp( '(\\s)<span[^>]\\sclass="mce_SELRES_end"[^>]+>\\s' + selectionID + '[^<]<\\/span>' ); var startMatch = content.match( startRegex ), endMatch = content.match( endRegex ); if ( ! startMatch ) { return null; } var startIndex = startMatch.index, startMatchLength = startMatch[0].length, endIndex = null; if (endMatch) { /* * Adjust the selection index, if the selection contains a Live Preview object or not. * * Check where the `data-mce-object-selection` attribute is set above for more context. / if ( startMatch[0].indexOf( 'data-mce-object-selection' ) !== -1 ) { startMatchLength -= startMatch[1].length; } var endMatchIndex = endMatch.index; if ( endMatch[0].indexOf( 'data-mce-object-selection' ) !== -1 ) { endMatchIndex -= endMatch[1].length; } // We need to adjust the end position to discard the length of the range start marker. endIndex = endMatchIndex - startMatchLength; } return { start: startIndex, end: endIndex }; } /* * Selects text in the TinyMCE `textarea`. * * Selects the text in TinyMCE's textarea that's between `selection.start` and `selection.end`. * * For `selection` parameter: * @link findBookmarkedPosition * * @param {Object} editor TinyMCE's editor instance. * @param {Object} selection Selection data. / function selectTextInTextArea( editor, selection ) { // Only valid in the text area mode and if we have selection. if ( ! selection ) { return; } var textArea = editor.getElement(), start = selection.start, end = selection.end \|\| selection.start; if ( textArea.focus ) { // Wait for the Visual editor to be hidden, then focus and scroll to the position. setTimeout( function() { textArea.setSelectionRange( start, end ); if ( textArea.blur ) { // Defocus before focusing. textArea.blur(); } textArea.focus(); }, 100 ); } } // Restore the selection when the editor is initialized. Needed when the Code editor is the default. $( document ).on( 'tinymce-editor-init.keep-scroll-position', function( event, editor ) { if ( editor.$( '.mce_SELRES_start' ).length ) { focusHTMLBookmarkInVisualEditor( editor ); } } ); /* * Replaces <p> tags with two line breaks. "Opposite" of wpautop(). * * Replaces <p> tags with two line breaks except where the <p> has attributes. * Unifies whitespace. * Indents <li>, <dt> and <dd> for better readability. * * @since 2.5.0 * * @memberof switchEditors * * @param {string} html The content from the editor. * @return {string} The content with stripped paragraph tags. / function removep( html ) { var blocklist = 'blockquote\|ul\|ol\|li\|dl\|dt\|dd\|table\|thead\|tbody\|tfoot\|tr\|th\|td\|h[1-6]\|fieldset\|figure', blocklist1 = blocklist + '\|div\|p', blocklist2 = blocklist + '\|pre', preserve_linebreaks = false, preserve_br = false, preserve = []; if ( ! html ) { return ''; } // Protect script and style tags. if ( html.indexOf( '<script' ) !== -1 \|\| html.indexOf( '<style' ) !== -1 ) { html = html.replace( /<(script\|style)[^>]>[\s\S]?<\/\1>/g, function( match ) { preserve.push( match ); return '<wp-preserve>'; } ); } // Protect pre tags. if ( html.indexOf( '<pre' ) !== -1 ) { preserve_linebreaks = true; html = html.replace( /<pre[^>]>[\s\S]+?<\/pre>/g, function( a ) { a = a.replace( /<br ?\/?>(\r\n\|\n)?/g, '<wp-line-break>' ); a = a.replace( /<\/?p( [^>])?>(\r\n\|\n)?/g, '<wp-line-break>' ); return a.replace( /\r?\n/g, '<wp-line-break>' ); }); } // Remove line breaks but keep <br> tags inside image captions. if ( html.indexOf( '[caption' ) !== -1 ) { preserve_br = true; html = html.replace( /\[caption[\s\S]+?\[\/caption\]/g, function( a ) { return a.replace( /<br([^>])>/g, '<wp-temp-br$1>' ).replace( /[\r\n\t]+/, '' ); }); } // Normalize white space characters before and after block tags. html = html.replace( new RegExp( '\\s</(' + blocklist1 + ')>\\s', 'g' ), '</$1>\n' ); html = html.replace( new RegExp( '\\s<((?:' + blocklist1 + ')(?: [^>])?)>', 'g' ), '\n<$1>' ); // Mark </p> if it has any attributes. html = html.replace( /(<p [^>]+>.?)<\/p>/g, '$1</p#>' ); // Preserve the first <p> inside a <div>. html = html.replace( /<div( [^>])?>\s<p>/gi, '<div$1>\n\n' ); // Remove paragraph tags. html = html.replace( /\s<p>/gi, '' ); html = html.replace( /\s<\/p>\s/gi, '\n\n' ); // Normalize white space chars and remove multiple line breaks. html = html.replace( /\n[\s\u00a0]+\n/g, '\n\n' ); // Replace <br> tags with line breaks. html = html.replace( /(\s)<br ?\/?>\s/gi, function( match, space ) { if ( space && space.indexOf( '\n' ) !== -1 ) { return '\n\n'; } return '\n'; }); // Fix line breaks around <div>. html = html.replace( /\s<div/g, '\n<div' ); html = html.replace( /<\/div>\s/g, '</div>\n' ); // Fix line breaks around caption shortcodes. html = html.replace( /\s\[caption([^\[]+)\[\/caption\]\s/gi, '\n\n[caption$1[/caption]\n\n' ); html = html.replace( /caption\]\n\n+\[caption/g, 'caption]\n\n[caption' ); // Pad block elements tags with a line break. html = html.replace( new RegExp('\\s<((?:' + blocklist2 + ')(?: [^>])?)\\s>', 'g' ), '\n<$1>' ); html = html.replace( new RegExp('\\s</(' + blocklist2 + ')>\\s', 'g' ), '</$1>\n' ); // Indent <li>, <dt> and <dd> tags. html = html.replace( /<((li\|dt\|dd)[^>])>/g, ' \t<$1>' ); // Fix line breaks around <select> and <option>. if ( html.indexOf( '<option' ) !== -1 ) { html = html.replace( /\s<option/g, '\n<option' ); html = html.replace( /\s<\/select>/g, '\n</select>' ); } // Pad <hr> with two line breaks. if ( html.indexOf( '<hr' ) !== -1 ) { html = html.replace( /\s<hr( [^>])?>\s/g, '\n\n<hr$1>\n\n' ); } // Remove line breaks in <object> tags. if ( html.indexOf( '<object' ) !== -1 ) { html = html.replace( /<object[\s\S]+?<\/object>/g, function( a ) { return a.replace( /[\r\n]+/g, '' ); }); } // Unmark special paragraph closing tags. html = html.replace( /<\/p#>/g, '</p>\n' ); // Pad remaining <p> tags whit a line break. html = html.replace( /\s(<p [^>]+>[\s\S]?<\/p>)/g, '\n$1' ); // Trim. html = html.replace( /^\s+/, '' ); html = html.replace( /[\s\u00a0]+$/, '' ); if ( preserve_linebreaks ) { html = html.replace( /<wp-line-break>/g, '\n' ); } if ( preserve_br ) { html = html.replace( /<wp-temp-br([^>])>/g, '<br$1>' ); } // Restore preserved tags. if ( preserve.length ) { html = html.replace( /<wp-preserve>/g, function() { return preserve.shift(); } ); } return html; } /** * Replaces two line breaks with a paragraph tag and one line break with a <br>. * * Similar to `wpautop()` in formatting.php. * * @since 2.5.0 * * @memberof switchEditors * * @param {string} text The text input. * @return {string} The formatted text. / function autop( text ) { var preserve_linebreaks = false, preserve_br = false, blocklist = 'table\|thead\|tfoot\|caption\|col\|colgroup\|tbody\|tr\|td\|th\|div\|dl\|dd\|dt\|ul\|ol\|li\|pre' + '\|form\|map\|area\|blockquote\|address\|math\|style\|p\|h[1-6]\|hr\|fieldset\|legend\|section' + '\|article\|aside\|hgroup\|header\|footer\|nav\|figure\|figcaption\|details\|menu\|summary'; // Normalize line breaks. text = text.replace( /\r\n\|\r/g, '\n' ); // Remove line breaks from <object>. if ( text.indexOf( '<object' ) !== -1 ) { text = text.replace( /<object[\s\S]+?<\/object>/g, function( a ) { return a.replace( /\n+/g, '' ); }); } // Remove line breaks from tags. text = text.replace( /<[^<>]+>/g, function( a ) { return a.replace( /[\n\t ]+/g, ' ' ); }); // Preserve line breaks in <pre> and <script> tags. if ( text.indexOf( '<pre' ) !== -1 \|\| text.indexOf( '<script' ) !== -1 ) { preserve_linebreaks = true; text = text.replace( /<(pre\|script)[^>]>[\s\S]?<\/\1>/g, function( a ) { return a.replace( /\n/g, '<wp-line-break>' ); }); } if ( text.indexOf( '<figcaption' ) !== -1 ) { text = text.replace( /\s(<figcaption[^>]>)/g, '$1' ); text = text.replace( /<\/figcaption>\s/g, '</figcaption>' ); } // Keep <br> tags inside captions. if ( text.indexOf( '[caption' ) !== -1 ) { preserve_br = true; text = text.replace( /\[caption[\s\S]+?\[\/caption\]/g, function( a ) { a = a.replace( /<br([^>])>/g, '<wp-temp-br$1>' ); a = a.replace( /<[^<>]+>/g, function( b ) { return b.replace( /[\n\t ]+/, ' ' ); }); return a.replace( /\s\n\s/g, '<wp-temp-br />' ); }); } text = text + '\n\n'; text = text.replace( /<br \/>\s<br \/>/gi, '\n\n' ); // Pad block tags with two line breaks. text = text.replace( new RegExp( '(<(?:' + blocklist + ')(?: [^>])?>)', 'gi' ), '\n\n$1' ); text = text.replace( new RegExp( '(</(?:' + blocklist + ')>)', 'gi' ), '$1\n\n' ); text = text.replace( /<hr( [^>])?>/gi, '<hr$1>\n\n' ); // Remove white space chars around <option>. text = text.replace( /\s<option/gi, '<option' ); text = text.replace( /<\/option>\s/gi, '</option>' ); // Normalize multiple line breaks and white space chars. text = text.replace( /\n\s\n+/g, '\n\n' ); // Convert two line breaks to a paragraph. text = text.replace( /([\s\S]+?)\n\n/g, '<p>$1</p>\n' ); // Remove empty paragraphs. text = text.replace( /<p>\s?<\/p>/gi, ''); // Remove <p> tags that are around block tags. text = text.replace( new RegExp( '<p>\\s(</?(?:' + blocklist + ')(?: [^>])?>)\\s</p>', 'gi' ), '$1' ); text = text.replace( /<p>(<li.+?)<\/p>/gi, '$1'); // Fix <p> in blockquotes. text = text.replace( /<p>\s<blockquote([^>])>/gi, '<blockquote$1><p>'); text = text.replace( /<\/blockquote>\s<\/p>/gi, '</p></blockquote>'); // Remove <p> tags that are wrapped around block tags. text = text.replace( new RegExp( '<p>\\s(</?(?:' + blocklist + ')(?: [^>])?>)', 'gi' ), '$1' ); text = text.replace( new RegExp( '(</?(?:' + blocklist + ')(?: [^>])?>)\\s</p>', 'gi' ), '$1' ); text = text.replace( /(<br[^>]>)\s\n/gi, '$1' ); // Add <br> tags. text = text.replace( /\s\n/g, '<br />\n'); // Remove <br> tags that are around block tags. text = text.replace( new RegExp( '(</?(?:' + blocklist + ')[^>]>)\\s<br />', 'gi' ), '$1' ); text = text.replace( /<br \/>(\s<\/?(?:p\|li\|div\|dl\|dd\|dt\|th\|pre\|td\|ul\|ol)>)/gi, '$1' ); // Remove <p> and <br> around captions. text = text.replace( /(?:<p>\|<br ?\/?>)\s\[caption([^\[]+)\[\/caption\]\s(?:<\/p>\|<br ?\/?>)/gi, '[caption$1[/caption]' ); // Make sure there is <p> when there is </p> inside block tags that can contain other blocks. text = text.replace( /(<(?:div\|th\|td\|form\|fieldset\|dd)[^>]>)(.?)<\/p>/g, function( a, b, c ) { if ( c.match( /<p( [^>])?>/ ) ) { return a; } return b + '<p>' + c + '</p>'; }); // Restore the line breaks in <pre> and <script> tags. if ( preserve_linebreaks ) { text = text.replace( /<wp-line-break>/g, '\n' ); } // Restore the <br> tags in captions. if ( preserve_br ) { text = text.replace( /<wp-temp-br([^>])>/g, '<br$1>' ); } return text; } /** * Fires custom jQuery events `beforePreWpautop` and `afterPreWpautop` when jQuery is available. * * @since 2.9.0 * * @memberof switchEditors * * @param {string} html The content from the visual editor. * @return {string} the filtered content. / function pre_wpautop( html ) { var obj = { o: exports, data: html, unfiltered: html }; if ( $ ) { $( 'body' ).trigger( 'beforePreWpautop', [ obj ] ); } obj.data = removep( obj.data ); if ( $ ) { $( 'body' ).trigger( 'afterPreWpautop', [ obj ] ); } return obj.data; } /* * Fires custom jQuery events `beforeWpautop` and `afterWpautop` when jQuery is available. * * @since 2.9.0 * * @memberof switchEditors * * @param {string} text The content from the text editor. * @return {string} filtered content. / function wpautop( text ) { var obj = { o: exports, data: text, unfiltered: text }; if ( $ ) { $( 'body' ).trigger( 'beforeWpautop', [ obj ] ); } obj.data = autop( obj.data ); if ( $ ) { $( 'body' ).trigger( 'afterWpautop', [ obj ] ); } return obj.data; } if ( $ ) { $( init ); } else if ( document.addEventListener ) { document.addEventListener( 'DOMContentLoaded', init, false ); window.addEventListener( 'load', init, false ); } else if ( window.attachEvent ) { window.attachEvent( 'onload', init ); document.attachEvent( 'onreadystatechange', function() { if ( 'complete' === document.readyState ) { init(); } } ); } wp.editor.autop = wpautop; wp.editor.removep = pre_wpautop; exports = { go: switchEditor, wpautop: wpautop, pre_wpautop: pre_wpautop, _wp_Autop: autop, _wp_Nop: removep }; return exports; } /* * Expose the switch editors to be used globally. * * @namespace switchEditors / window.switchEditors = new SwitchEditors(); /* * Initialize TinyMCE and/or Quicktags. For use with wp_enqueue_editor() (PHP). * * Intended for use with an existing textarea that will become the Code editor tab. * The editor width will be the width of the textarea container, height will be adjustable. * * Settings for both TinyMCE and Quicktags can be passed on initialization, and are "filtered" * with custom jQuery events on the document element, wp-before-tinymce-init and wp-before-quicktags-init. * * @since 4.8.0 * * @param {string} id The HTML id of the textarea that is used for the editor. * Has to be jQuery compliant. No brackets, special chars, etc. * @param {Object} settings Example: * settings = { * // See https://www.tinymce.com/docs/configure/integration-and-setup/. * // Alternatively set to `true` to use the defaults. * tinymce: { * setup: function( editor ) { * console.log( 'Editor initialized', editor ); * } * } * * // Alternatively set to `true` to use the defaults. * quicktags: { * buttons: 'strong,em,link' * } * } / wp.editor.initialize = function( id, settings ) { var init; var defaults; if ( ! $ \|\| ! id \|\| ! wp.editor.getDefaultSettings ) { return; } defaults = wp.editor.getDefaultSettings(); // Initialize TinyMCE by default. if ( ! settings ) { settings = { tinymce: true }; } // Add wrap and the Visual\|Code tabs. if ( settings.tinymce && settings.quicktags ) { var $textarea = $( '#' + id ); var $wrap = $( '<div>' ).attr( { 'class': 'wp-core-ui wp-editor-wrap tmce-active', id: 'wp-' + id + '-wrap' } ); var $editorContainer = $( '<div class="wp-editor-container">' ); var $button = $( '<button>' ).attr( { type: 'button', 'data-wp-editor-id': id } ); var $editorTools = $( '<div class="wp-editor-tools">' ); if ( settings.mediaButtons ) { var buttonText = 'Add Media'; if ( window._wpMediaViewsL10n && window._wpMediaViewsL10n.addMedia ) { buttonText = window._wpMediaViewsL10n.addMedia; } var $addMediaButton = $( '<button type="button" class="button insert-media add_media">' ); $addMediaButton.append( '<span class="wp-media-buttons-icon"></span>' ); $addMediaButton.append( document.createTextNode( ' ' + buttonText ) ); $addMediaButton.data( 'editor', id ); $editorTools.append( $( '<div class="wp-media-buttons">' ) .append( $addMediaButton ) ); } $wrap.append( $editorTools .append( $( '<div class="wp-editor-tabs">' ) .append( $button.clone().attr({ id: id + '-tmce', 'class': 'wp-switch-editor switch-tmce' }).text( window.tinymce.translate( 'Visual' ) ) ) .append( $button.attr({ id: id + '-html', 'class': 'wp-switch-editor switch-html' }).text( window.tinymce.translate( 'Code\|tab' ) ) ) ).append( $editorContainer ) ); $textarea.after( $wrap ); $editorContainer.append( $textarea ); } if ( window.tinymce && settings.tinymce ) { if ( typeof settings.tinymce !== 'object' ) { settings.tinymce = {}; } init = $.extend( {}, defaults.tinymce, settings.tinymce ); init.selector = '#' + id; $( document ).trigger( 'wp-before-tinymce-init', init ); window.tinymce.init( init ); if ( ! window.wpActiveEditor ) { window.wpActiveEditor = id; } } if ( window.quicktags && settings.quicktags ) { if ( typeof settings.quicktags !== 'object' ) { settings.quicktags = {}; } init = $.extend( {}, defaults.quicktags, settings.quicktags ); init.id = id; $( document ).trigger( 'wp-before-quicktags-init', init ); window.quicktags( init ); if ( ! window.wpActiveEditor ) { window.wpActiveEditor = init.id; } } }; /* * Remove one editor instance. * * Intended for use with editors that were initialized with wp.editor.initialize(). * * @since 4.8.0 * * @param {string} id The HTML id of the editor textarea. / wp.editor.remove = function( id ) { var mceInstance, qtInstance, $wrap = $( '#wp-' + id + '-wrap' ); if ( window.tinymce ) { mceInstance = window.tinymce.get( id ); if ( mceInstance ) { if ( ! mceInstance.isHidden() ) { mceInstance.save(); } mceInstance.remove(); } } if ( window.quicktags ) { qtInstance = window.QTags.getInstance( id ); if ( qtInstance ) { qtInstance.remove(); } } if ( $wrap.length ) { $wrap.after( $( '#' + id ) ); $wrap.remove(); } }; /* * Get the editor content. * * Intended for use with editors that were initialized with wp.editor.initialize(). * * @since 4.8.0 * * @param {string} id The HTML id of the editor textarea. * @return The editor content. */ wp.editor.getContent = function( id ) { var editor; if ( ! $ \|\| ! id ) { return; } if ( window.tinymce ) { editor = window.tinymce.get( id ); if ( editor && ! editor.isHidden() ) { editor.save(); } } return $( '#' + id ).val(); }; }( window.jQuery, window.wp )); Back

Edit File : editor.js | Size : 43.98 KB

/**
 * @output wp-admin/js/editor.js
 */

window.wp = window.wp || {};

( function( $, wp ) {
	wp.editor = wp.editor || {};

/**
	 * Utility functions for the editor.
	 *
	 * @since 2.5.0
	 */
	function SwitchEditors() {
		var tinymce, $$,
			exports = {};

function init() {
			if ( ! tinymce && window.tinymce ) {
				tinymce = window.tinymce;
				$$ = tinymce.$;

/**
				 * Handles onclick events for the Visual/Code tabs.
				 *
				 * @since 4.3.0
				 *
				 * @return {void}
				 */
				$$( document ).on( 'click', function( event ) {
					var id, mode,
						target = $$( event.target );

if ( target.hasClass( 'wp-switch-editor' ) ) {
						id = target.attr( 'data-wp-editor-id' );
						mode = target.hasClass( 'switch-tmce' ) ? 'tmce' : 'html';
						switchEditor( id, mode );
					}
				});
			}
		}

/**
		 * Returns the height of the editor toolbar(s) in px.
		 *
		 * @since 3.9.0
		 *
		 * @param {Object} editor The TinyMCE editor.
		 * @return {number} If the height is between 10 and 200 return the height,
		 * else return 30.
		 */
		function getToolbarHeight( editor ) {
			var node = $$( '.mce-toolbar-grp', editor.getContainer() )[0],
				height = node && node.clientHeight;

if ( height && height > 10 && height < 200 ) {
				return parseInt( height, 10 );
			}

return 30;
		}

/**
		 * Switches the editor between Visual and Code mode.
		 *
		 * @since 2.5.0
		 *
		 * @memberof switchEditors
		 *
		 * @param {string} id The id of the editor you want to change the editor mode for. Default: `content`.
		 * @param {string} mode The mode you want to switch to. Default: `toggle`.
		 * @return {void}
		 */
		function switchEditor( id, mode ) {
			id = id || 'content';
			mode = mode || 'toggle';

var editorHeight, toolbarHeight, iframe,
				editor = tinymce.get( id ),
				wrap = $$( '#wp-' + id + '-wrap' ),
				htmlSwitch = wrap.find( '.switch-tmce' ),
				tmceSwitch = wrap.find( '.switch-html' ),
				$textarea = $$( '#' + id ),
				textarea = $textarea[0];

if ( 'toggle' === mode ) {
				if ( editor && ! editor.isHidden() ) {
					mode = 'html';
				} else {
					mode = 'tmce';
				}
			}

if ( 'tmce' === mode || 'tinymce' === mode ) {
				// If the editor is visible we are already in `tinymce` mode.
				if ( editor && ! editor.isHidden() ) {
					return false;
				}

// Insert closing tags for any open tags in QuickTags.
				if ( typeof( window.QTags ) !== 'undefined' ) {
					window.QTags.closeAllTags( id );
				}

editorHeight = parseInt( textarea.style.height, 10 ) || 0;

addHTMLBookmarkInTextAreaContent( $textarea );

if ( editor ) {
					editor.show();

// No point to resize the iframe in iOS.
					if ( ! tinymce.Env.iOS && editorHeight ) {
						toolbarHeight = getToolbarHeight( editor );
						editorHeight = editorHeight - toolbarHeight + 14;

// Sane limit for the editor height.
						if ( editorHeight > 50 && editorHeight < 5000 ) {
							editor.theme.resizeTo( null, editorHeight );
						}
					}

focusHTMLBookmarkInVisualEditor( editor );
				} else {
					tinymce.init( window.tinyMCEPreInit.mceInit[ id ] );
				}

wrap.removeClass( 'html-active' ).addClass( 'tmce-active' );
				tmceSwitch.attr( 'aria-pressed', false );
				htmlSwitch.attr( 'aria-pressed', true );
				$textarea.attr( 'aria-hidden', true );
				window.setUserSetting( 'editor', 'tinymce' );

} else if ( 'html' === mode ) {
				// If the editor is hidden (Quicktags is shown) we don't need to switch.
				if ( editor && editor.isHidden() ) {
					return false;
				}

if ( editor ) {
					// Don't resize the textarea in iOS.
					// The iframe is forced to 100% height there, we shouldn't match it.
					if ( ! tinymce.Env.iOS ) {
						iframe = editor.iframeElement;
						editorHeight = iframe ? parseInt( iframe.style.height, 10 ) : 0;

if ( editorHeight ) {
							toolbarHeight = getToolbarHeight( editor );
							editorHeight = editorHeight + toolbarHeight - 14;

// Sane limit for the textarea height.
							if ( editorHeight > 50 && editorHeight < 5000 ) {
								textarea.style.height = editorHeight + 'px';
							}
						}
					}

var selectionRange = null;

selectionRange = findBookmarkedPosition( editor );

editor.hide();

if ( selectionRange ) {
						selectTextInTextArea( editor, selectionRange );
					}
				} else {
					// There is probably a JS error on the page.
					// The TinyMCE editor instance doesn't exist. Show the textarea.
					$textarea.css({ 'display': '', 'visibility': '' });
				}

wrap.removeClass( 'tmce-active' ).addClass( 'html-active' );
				tmceSwitch.attr( 'aria-pressed', true );
				htmlSwitch.attr( 'aria-pressed', false );
				$textarea.attr( 'aria-hidden', false );
				window.setUserSetting( 'editor', 'html' );
			}
		}

/**
		 * Checks if a cursor is inside an HTML tag or comment.
		 *
		 * In order to prevent breaking HTML tags when selecting text, the cursor
		 * must be moved to either the start or end of the tag.
		 *
		 * This will prevent the selection marker to be inserted in the middle of an HTML tag.
		 *
		 * This function gives information whether the cursor is inside a tag or not, as well as
		 * the tag type, if it is a closing tag and check if the HTML tag is inside a shortcode tag,
		 * e.g. `[caption]<img.../>..`.
		 *
		 * @param {string} content The test content where the cursor is.
		 * @param {number} cursorPosition The cursor position inside the content.
		 *
		 * @return {(null|Object)} Null if cursor is not in a tag, Object if the cursor is inside a tag.
		 */
		function getContainingTagInfo( content, cursorPosition ) {
			var lastLtPos = content.lastIndexOf( '<', cursorPosition - 1 ),
				lastGtPos = content.lastIndexOf( '>', cursorPosition );

if ( lastLtPos > lastGtPos || content.substr( cursorPosition, 1 ) === '>' ) {
				// Find what the tag is.
				var tagContent = content.substr( lastLtPos ),
					tagMatch = tagContent.match( /<\s*(\/)?(\w+|\!-{2}.*-{2})/ );

if ( ! tagMatch ) {
					return null;
				}

var tagType = tagMatch[2],
					closingGt = tagContent.indexOf( '>' );

return {
					ltPos: lastLtPos,
					gtPos: lastLtPos + closingGt + 1, // Offset by one to get the position _after_ the character.
					tagType: tagType,
					isClosingTag: !! tagMatch[1]
				};
			}
			return null;
		}

/**
		 * Checks if the cursor is inside a shortcode
		 *
		 * If the cursor is inside a shortcode wrapping tag, e.g. `[caption]` it's better to
		 * move the selection marker to before or after the shortcode.
		 *
		 * For example `[caption]` rewrites/removes anything that's between the `[caption]` tag and the
		 * `<img/>` tag inside.
		 *
		 * `[caption]<span>ThisIsGone</span><img .../>[caption]`
		 *
		 * Moving the selection to before or after the short code is better, since it allows to select
		 * something, instead of just losing focus and going to the start of the content.
		 *
		 * @param {string} content The text content to check against.
		 * @param {number} cursorPosition    The cursor position to check.
		 *
		 * @return {(undefined|Object)} Undefined if the cursor is not wrapped in a shortcode tag.
		 *                              Information about the wrapping shortcode tag if it's wrapped in one.
		 */
		function getShortcodeWrapperInfo( content, cursorPosition ) {
			var contentShortcodes = getShortCodePositionsInText( content );

for ( var i = 0; i < contentShortcodes.length; i++ ) {
				var element = contentShortcodes[ i ];

if ( cursorPosition >= element.startIndex && cursorPosition <= element.endIndex ) {
					return element;
				}
			}
		}

/**
		 * Gets a list of unique shortcodes or shortcode-lookalikes in the content.
		 *
		 * @param {string} content The content we want to scan for shortcodes.
		 */
		function getShortcodesInText( content ) {
			var shortcodes = content.match( /\[+([\w_-])+/g ),
				result = [];

if ( shortcodes ) {
				for ( var i = 0; i < shortcodes.length; i++ ) {
					var shortcode = shortcodes[ i ].replace( /^\[+/g, '' );

if ( result.indexOf( shortcode ) === -1 ) {
						result.push( shortcode );
					}
				}
			}

return result;
		}

/**
		 * Gets all shortcodes and their positions in the content
		 *
		 * This function returns all the shortcodes that could be found in the textarea content
		 * along with their character positions and boundaries.
		 *
		 * This is used to check if the selection cursor is inside the boundaries of a shortcode
		 * and move it accordingly, to avoid breakage.
		 *
		 * @link adjustTextAreaSelectionCursors
		 *
		 * The information can also be used in other cases when we need to lookup shortcode data,
		 * as it's already structured!
		 *
		 * @param {string} content The content we want to scan for shortcodes
		 */
		function getShortCodePositionsInText( content ) {
			var allShortcodes = getShortcodesInText( content ), shortcodeInfo;

if ( allShortcodes.length === 0 ) {
				return [];
			}

var shortcodeDetailsRegexp = wp.shortcode.regexp( allShortcodes.join( '|' ) ),
				shortcodeMatch, // Define local scope for the variable to be used in the loop below.
				shortcodesDetails = [];

while ( shortcodeMatch = shortcodeDetailsRegexp.exec( content ) ) {
				/**
				 * Check if the shortcode should be shown as plain text.
				 *
				 * This corresponds to the [[shortcode]] syntax, which doesn't parse the shortcode
				 * and just shows it as text.
				 */
				var showAsPlainText = shortcodeMatch[1] === '[';

shortcodeInfo = {
					shortcodeName: shortcodeMatch[2],
					showAsPlainText: showAsPlainText,
					startIndex: shortcodeMatch.index,
					endIndex: shortcodeMatch.index + shortcodeMatch[0].length,
					length: shortcodeMatch[0].length
				};

shortcodesDetails.push( shortcodeInfo );
			}

/**
			 * Get all URL matches, and treat them as embeds.
			 *
			 * Since there isn't a good way to detect if a URL by itself on a line is a previewable
			 * object, it's best to treat all of them as such.
			 *
			 * This means that the selection will capture the whole URL, in a similar way shrotcodes
			 * are treated.
			 */
			var urlRegexp = new RegExp(
				'(^|[\\n\\r][\\n\\r]|<p>)(https?:\\/\\/[^\s"]+?)(<\\/p>\s*|[\\n\\r][\\n\\r]|$)', 'gi'
			);

while ( shortcodeMatch = urlRegexp.exec( content ) ) {
				shortcodeInfo = {
					shortcodeName: 'url',
					showAsPlainText: false,
					startIndex: shortcodeMatch.index,
					endIndex: shortcodeMatch.index + shortcodeMatch[ 0 ].length,
					length: shortcodeMatch[ 0 ].length,
					urlAtStartOfContent: shortcodeMatch[ 1 ] === '',
					urlAtEndOfContent: shortcodeMatch[ 3 ] === ''
				};

shortcodesDetails.push( shortcodeInfo );
			}

return shortcodesDetails;
		}

/**
		 * Generate a cursor marker element to be inserted in the content.
		 *
		 * `span` seems to be the least destructive element that can be used.
		 *
		 * Using DomQuery syntax to create it, since it's used as both text and as a DOM element.
		 *
		 * @param {Object} domLib DOM library instance.
		 * @param {string} content The content to insert into the cursor marker element.
		 */
		function getCursorMarkerSpan( domLib, content ) {
			return domLib( '<span>' ).css( {
						display: 'inline-block',
						width: 0,
						overflow: 'hidden',
						'line-height': 0
					} )
					.html( content ? content : '' );
		}

/**
		 * Gets adjusted selection cursor positions according to HTML tags, comments, and shortcodes.
		 *
		 * Shortcodes and HTML codes are a bit of a special case when selecting, since they may render
		 * content in Visual mode. If we insert selection markers somewhere inside them, it's really possible
		 * to break the syntax and render the HTML tag or shortcode broken.
		 *
		 * @link getShortcodeWrapperInfo
		 *
		 * @param {string} content Textarea content that the cursors are in
		 * @param {{cursorStart: number, cursorEnd: number}} cursorPositions Cursor start and end positions
		 *
		 * @return {{cursorStart: number, cursorEnd: number}}
		 */
		function adjustTextAreaSelectionCursors( content, cursorPositions ) {
			var voidElements = [
				'area', 'base', 'br', 'col', 'embed', 'hr', 'img', 'input',
				'keygen', 'link', 'meta', 'param', 'source', 'track', 'wbr'
			];

var cursorStart = cursorPositions.cursorStart,
				cursorEnd = cursorPositions.cursorEnd,
				// Check if the cursor is in a tag and if so, adjust it.
				isCursorStartInTag = getContainingTagInfo( content, cursorStart );

if ( isCursorStartInTag ) {
				/**
				 * Only move to the start of the HTML tag (to select the whole element) if the tag
				 * is part of the voidElements list above.
				 *
				 * This list includes tags that are self-contained and don't need a closing tag, according to the
				 * HTML5 specification.
				 *
				 * This is done in order to make selection of text a bit more consistent when selecting text in
				 * `<p>` tags or such.
				 *
				 * In cases where the tag is not a void element, the cursor is put to the end of the tag,
				 * so it's either between the opening and closing tag elements or after the closing tag.
				 */
				if ( voidElements.indexOf( isCursorStartInTag.tagType ) !== -1 ) {
					cursorStart = isCursorStartInTag.ltPos;
				} else {
					cursorStart = isCursorStartInTag.gtPos;
				}
			}

var isCursorEndInTag = getContainingTagInfo( content, cursorEnd );
			if ( isCursorEndInTag ) {
				cursorEnd = isCursorEndInTag.gtPos;
			}

return {
				cursorStart: cursorStart,
				cursorEnd: cursorEnd
			};
		}

/**
		 * Adds text selection markers in the editor textarea.
		 *
		 * Adds selection markers in the content of the editor `textarea`.
		 * The method directly manipulates the `textarea` content, to allow TinyMCE plugins
		 * to run after the markers are added.
		 *
		 * @param {Object} $textarea TinyMCE's textarea wrapped as a DomQuery object
		 */
		function addHTMLBookmarkInTextAreaContent( $textarea ) {
			if ( ! $textarea || ! $textarea.length ) {
				// If no valid $textarea object is provided, there's nothing we can do.
				return;
			}

var textArea = $textarea[0],
				textAreaContent = textArea.value,

adjustedCursorPositions = adjustTextAreaSelectionCursors( textAreaContent, {
					cursorStart: textArea.selectionStart,
					cursorEnd: textArea.selectionEnd
				} ),

htmlModeCursorStartPosition = adjustedCursorPositions.cursorStart,
				htmlModeCursorEndPosition = adjustedCursorPositions.cursorEnd,

mode = htmlModeCursorStartPosition !== htmlModeCursorEndPosition ? 'range' : 'single',

selectedText = null,
				cursorMarkerSkeleton = getCursorMarkerSpan( $$, '&#65279;' ).attr( 'data-mce-type','bookmark' );

if ( mode === 'range' ) {
				var markedText = textArea.value.slice( htmlModeCursorStartPosition, htmlModeCursorEndPosition ),
					bookMarkEnd = cursorMarkerSkeleton.clone().addClass( 'mce_SELRES_end' );

selectedText = [
					markedText,
					bookMarkEnd[0].outerHTML
				].join( '' );
			}

textArea.value = [
				textArea.value.slice( 0, htmlModeCursorStartPosition ), // Text until the cursor/selection position.
				cursorMarkerSkeleton.clone()							// Cursor/selection start marker.
					.addClass( 'mce_SELRES_start' )[0].outerHTML,
				selectedText, 											// Selected text with end cursor/position marker.
				textArea.value.slice( htmlModeCursorEndPosition )		// Text from last cursor/selection position to end.
			].join( '' );
		}

/**
		 * Focuses the selection markers in Visual mode.
		 *
		 * The method checks for existing selection markers inside the editor DOM (Visual mode)
		 * and create a selection between the two nodes using the DOM `createRange` selection API.
		 *
		 * If there is only a single node, select only the single node through TinyMCE's selection API
		 *
		 * @param {Object} editor TinyMCE editor instance.
		 */
		function focusHTMLBookmarkInVisualEditor( editor ) {
			var startNode = editor.$( '.mce_SELRES_start' ).attr( 'data-mce-bogus', 1 ),
				endNode = editor.$( '.mce_SELRES_end' ).attr( 'data-mce-bogus', 1 );

if ( startNode.length ) {
				editor.focus();

if ( ! endNode.length ) {
					editor.selection.select( startNode[0] );
				} else {
					var selection = editor.getDoc().createRange();

selection.setStartAfter( startNode[0] );
					selection.setEndBefore( endNode[0] );

editor.selection.setRng( selection );
				}
			}

scrollVisualModeToStartElement( editor, startNode );

removeSelectionMarker( startNode );
			removeSelectionMarker( endNode );

editor.save();
		}

/**
		 * Removes selection marker and the parent node if it is an empty paragraph.
		 *
		 * By default TinyMCE wraps loose inline tags in a `<p>`.
		 * When removing selection markers an empty `<p>` may be left behind, remove it.
		 *
		 * @param {Object} $marker The marker to be removed from the editor DOM, wrapped in an instance of `editor.$`
		 */
		function removeSelectionMarker( $marker ) {
			var $markerParent = $marker.parent();

$marker.remove();

//Remove empty paragraph left over after removing the marker.
			if ( $markerParent.is( 'p' ) && ! $markerParent.children().length && ! $markerParent.text() ) {
				$markerParent.remove();
			}
		}

/**
		 * Scrolls the content to place the selected element in the center of the screen.
		 *
		 * Takes an element, that is usually the selection start element, selected in
		 * `focusHTMLBookmarkInVisualEditor()` and scrolls the screen so the element appears roughly
		 * in the middle of the screen.
		 *
		 * I order to achieve the proper positioning, the editor media bar and toolbar are subtracted
		 * from the window height, to get the proper viewport window, that the user sees.
		 *
		 * @param {Object} editor TinyMCE editor instance.
		 * @param {Object} element HTMLElement that should be scrolled into view.
		 */
		function scrollVisualModeToStartElement( editor, element ) {
			var elementTop = editor.$( element ).offset().top,
				TinyMCEContentAreaTop = editor.$( editor.getContentAreaContainer() ).offset().top,

toolbarHeight = getToolbarHeight( editor ),

edTools = $( '#wp-content-editor-tools' ),
				edToolsHeight = 0,
				edToolsOffsetTop = 0,

$scrollArea;

if ( edTools.length ) {
				edToolsHeight = edTools.height();
				edToolsOffsetTop = edTools.offset().top;
			}

var windowHeight = window.innerHeight || document.documentElement.clientHeight || document.body.clientHeight,

selectionPosition = TinyMCEContentAreaTop + elementTop,
				visibleAreaHeight = windowHeight - ( edToolsHeight + toolbarHeight );

// There's no need to scroll if the selection is inside the visible area.
			if ( selectionPosition < visibleAreaHeight ) {
				return;
			}

/**
			 * The minimum scroll height should be to the top of the editor, to offer a consistent
			 * experience.
			 *
			 * In order to find the top of the editor, we calculate the offset of `#wp-content-editor-tools` and
			 * subtracting the height. This gives the scroll position where the top of the editor tools aligns with
			 * the top of the viewport (under the Master Bar)
			 */
			var adjustedScroll;
			if ( editor.settings.wp_autoresize_on ) {
				$scrollArea = $( 'html,body' );
				adjustedScroll = Math.max( selectionPosition - visibleAreaHeight / 2, edToolsOffsetTop - edToolsHeight );
			} else {
				$scrollArea = $( editor.contentDocument ).find( 'html,body' );
				adjustedScroll = elementTop;
			}

$scrollArea.animate( {
				scrollTop: parseInt( adjustedScroll, 10 )
			}, 100 );
		}

/**
		 * This method was extracted from the `SaveContent` hook in
		 * `wp-includes/js/tinymce/plugins/wordpress/plugin.js`.
		 *
		 * It's needed here, since the method changes the content a bit, which confuses the cursor position.
		 *
		 * @param {Object} event TinyMCE event object.
		 */
		function fixTextAreaContent( event ) {
			// Keep empty paragraphs :(
			event.content = event.content.replace( /<p>(?:<br ?\/?>|\u00a0|\uFEFF| )*<\/p>/g, '<p>&nbsp;</p>' );
		}

/**
		 * Finds the current selection position in the Visual editor.
		 *
		 * Find the current selection in the Visual editor by inserting marker elements at the start
		 * and end of the selection.
		 *
		 * Uses the standard DOM selection API to achieve that goal.
		 *
		 * Check the notes in the comments in the code below for more information on some gotchas
		 * and why this solution was chosen.
		 *
		 * @param {Object} editor The editor where we must find the selection.
		 * @return {(null|Object)} The selection range position in the editor.
		 */
		function findBookmarkedPosition( editor ) {
			// Get the TinyMCE `window` reference, since we need to access the raw selection.
			var TinyMCEWindow = editor.getWin(),
				selection = TinyMCEWindow.getSelection();

if ( ! selection || selection.rangeCount < 1 ) {
				// no selection, no need to continue.
				return;
			}

/**
			 * The ID is used to avoid replacing user generated content, that may coincide with the
			 * format specified below.
			 * @type {string}
			 */
			var selectionID = 'SELRES_' + Math.random();

/**
			 * Create two marker elements that will be used to mark the start and the end of the range.
			 *
			 * The elements have hardcoded style that makes them invisible. This is done to avoid seeing
			 * random content flickering in the editor when switching between modes.
			 */
			var spanSkeleton = getCursorMarkerSpan( editor.$, selectionID ),
				startElement = spanSkeleton.clone().addClass( 'mce_SELRES_start' ),
				endElement = spanSkeleton.clone().addClass( 'mce_SELRES_end' );

/**
			 * Inspired by:
			 * @link https://stackoverflow.com/a/17497803/153310
			 *
			 * Why do it this way and not with TinyMCE's bookmarks?
			 *
			 * TinyMCE's bookmarks are very nice when working with selections and positions, BUT
			 * there is no way to determine the precise position of the bookmark when switching modes, since
			 * TinyMCE does some serialization of the content, to fix things like shortcodes, run plugins, prettify
			 * HTML code and so on. In this process, the bookmark markup gets lost.
			 *
			 * If we decide to hook right after the bookmark is added, we can see where the bookmark is in the raw HTML
			 * in TinyMCE. Unfortunately this state is before the serialization, so any visual markup in the content will
			 * throw off the positioning.
			 *
			 * To avoid this, we insert two custom `span`s that will serve as the markers at the beginning and end of the
			 * selection.
			 *
			 * Why not use TinyMCE's selection API or the DOM API to wrap the contents? Because if we do that, this creates
			 * a new node, which is inserted in the dom. Now this will be fine, if we worked with fixed selections to
			 * full nodes. Unfortunately in our case, the user can select whatever they like, which means that the
			 * selection may start in the middle of one node and end in the middle of a completely different one. If we
			 * wrap the selection in another node, this will create artifacts in the content.
			 *
			 * Using the method below, we insert the custom `span` nodes at the start and at the end of the selection.
			 * This helps us not break the content and also gives us the option to work with multi-node selections without
			 * breaking the markup.
			 */
			var range = selection.getRangeAt( 0 ),
				startNode = range.startContainer,
				startOffset = range.startOffset,
				boundaryRange = range.cloneRange();

/**
			 * If the selection is on a shortcode with Live View, TinyMCE creates a bogus markup,
			 * which we have to account for.
			 */
			if ( editor.$( startNode ).parents( '.mce-offscreen-selection' ).length > 0 ) {
				startNode = editor.$( '[data-mce-selected]' )[0];

/**
				 * Marking the start and end element with `data-mce-object-selection` helps
				 * discern when the selected object is a Live Preview selection.
				 *
				 * This way we can adjust the selection to properly select only the content, ignoring
				 * whitespace inserted around the selected object by the Editor.
				 */
				startElement.attr( 'data-mce-object-selection', 'true' );
				endElement.attr( 'data-mce-object-selection', 'true' );

editor.$( startNode ).before( startElement[0] );
				editor.$( startNode ).after( endElement[0] );
			} else {
				boundaryRange.collapse( false );
				boundaryRange.insertNode( endElement[0] );

boundaryRange.setStart( startNode, startOffset );
				boundaryRange.collapse( true );
				boundaryRange.insertNode( startElement[0] );

range.setStartAfter( startElement[0] );
				range.setEndBefore( endElement[0] );
				selection.removeAllRanges();
				selection.addRange( range );
			}

/**
			 * Now the editor's content has the start/end nodes.
			 *
			 * Unfortunately the content goes through some more changes after this step, before it gets inserted
			 * in the `textarea`. This means that we have to do some minor cleanup on our own here.
			 */
			editor.on( 'GetContent', fixTextAreaContent );

var content = removep( editor.getContent() );

editor.off( 'GetContent', fixTextAreaContent );

startElement.remove();
			endElement.remove();

var startRegex = new RegExp(
				'<span[^>]*\\s*class="mce_SELRES_start"[^>]+>\\s*' + selectionID + '[^<]*<\\/span>(\\s*)'
			);

var endRegex = new RegExp(
				'(\\s*)<span[^>]*\\s*class="mce_SELRES_end"[^>]+>\\s*' + selectionID + '[^<]*<\\/span>'
			);

var startMatch = content.match( startRegex ),
				endMatch = content.match( endRegex );

if ( ! startMatch ) {
				return null;
			}

var startIndex = startMatch.index,
				startMatchLength = startMatch[0].length,
				endIndex = null;

if (endMatch) {
				/**
				 * Adjust the selection index, if the selection contains a Live Preview object or not.
				 *
				 * Check where the `data-mce-object-selection` attribute is set above for more context.
				 */
				if ( startMatch[0].indexOf( 'data-mce-object-selection' ) !== -1 ) {
					startMatchLength -= startMatch[1].length;
				}

var endMatchIndex = endMatch.index;

if ( endMatch[0].indexOf( 'data-mce-object-selection' ) !== -1 ) {
					endMatchIndex -= endMatch[1].length;
				}

// We need to adjust the end position to discard the length of the range start marker.
				endIndex = endMatchIndex - startMatchLength;
			}

return {
				start: startIndex,
				end: endIndex
			};
		}

/**
		 * Selects text in the TinyMCE `textarea`.
		 *
		 * Selects the text in TinyMCE's textarea that's between `selection.start` and `selection.end`.
		 *
		 * For `selection` parameter:
		 * @link findBookmarkedPosition
		 *
		 * @param {Object} editor TinyMCE's editor instance.
		 * @param {Object} selection Selection data.
		 */
		function selectTextInTextArea( editor, selection ) {
			// Only valid in the text area mode and if we have selection.
			if ( ! selection ) {
				return;
			}

var textArea = editor.getElement(),
				start = selection.start,
				end = selection.end || selection.start;

if ( textArea.focus ) {
				// Wait for the Visual editor to be hidden, then focus and scroll to the position.
				setTimeout( function() {
					textArea.setSelectionRange( start, end );
					if ( textArea.blur ) {
						// Defocus before focusing.
						textArea.blur();
					}
					textArea.focus();
				}, 100 );
			}
		}

// Restore the selection when the editor is initialized. Needed when the Code editor is the default.
		$( document ).on( 'tinymce-editor-init.keep-scroll-position', function( event, editor ) {
			if ( editor.$( '.mce_SELRES_start' ).length ) {
				focusHTMLBookmarkInVisualEditor( editor );
			}
		} );

/**
		 * Replaces <p> tags with two line breaks. "Opposite" of wpautop().
		 *
		 * Replaces <p> tags with two line breaks except where the <p> has attributes.
		 * Unifies whitespace.
		 * Indents <li>, <dt> and <dd> for better readability.
		 *
		 * @since 2.5.0
		 *
		 * @memberof switchEditors
		 *
		 * @param {string} html The content from the editor.
		 * @return {string} The content with stripped paragraph tags.
		 */
		function removep( html ) {
			var blocklist = 'blockquote|ul|ol|li|dl|dt|dd|table|thead|tbody|tfoot|tr|th|td|h[1-6]|fieldset|figure',
				blocklist1 = blocklist + '|div|p',
				blocklist2 = blocklist + '|pre',
				preserve_linebreaks = false,
				preserve_br = false,
				preserve = [];

if ( ! html ) {
				return '';
			}

// Protect script and style tags.
			if ( html.indexOf( '<script' ) !== -1 || html.indexOf( '<style' ) !== -1 ) {
				html = html.replace( /<(script|style)[^>]*>[\s\S]*?<\/\1>/g, function( match ) {
					preserve.push( match );
					return '<wp-preserve>';
				} );
			}

// Protect pre tags.
			if ( html.indexOf( '<pre' ) !== -1 ) {
				preserve_linebreaks = true;
				html = html.replace( /<pre[^>]*>[\s\S]+?<\/pre>/g, function( a ) {
					a = a.replace( /<br ?\/?>(\r\n|\n)?/g, '<wp-line-break>' );
					a = a.replace( /<\/?p( [^>]*)?>(\r\n|\n)?/g, '<wp-line-break>' );
					return a.replace( /\r?\n/g, '<wp-line-break>' );
				});
			}

// Remove line breaks but keep <br> tags inside image captions.
			if ( html.indexOf( '[caption' ) !== -1 ) {
				preserve_br = true;
				html = html.replace( /\[caption[\s\S]+?\[\/caption\]/g, function( a ) {
					return a.replace( /<br([^>]*)>/g, '<wp-temp-br$1>' ).replace( /[\r\n\t]+/, '' );
				});
			}

// Normalize white space characters before and after block tags.
			html = html.replace( new RegExp( '\\s*</(' + blocklist1 + ')>\\s*', 'g' ), '</$1>\n' );
			html = html.replace( new RegExp( '\\s*<((?:' + blocklist1 + ')(?: [^>]*)?)>', 'g' ), '\n<$1>' );

// Mark </p> if it has any attributes.
			html = html.replace( /(<p [^>]+>.*?)<\/p>/g, '$1</p#>' );

// Preserve the first <p> inside a <div>.
			html = html.replace( /<div( [^>]*)?>\s*<p>/gi, '<div$1>\n\n' );

// Remove paragraph tags.
			html = html.replace( /\s*<p>/gi, '' );
			html = html.replace( /\s*<\/p>\s*/gi, '\n\n' );

// Normalize white space chars and remove multiple line breaks.
			html = html.replace( /\n[\s\u00a0]+\n/g, '\n\n' );

// Replace <br> tags with line breaks.
			html = html.replace( /(\s*)<br ?\/?>\s*/gi, function( match, space ) {
				if ( space && space.indexOf( '\n' ) !== -1 ) {
					return '\n\n';
				}

return '\n';
			});

// Fix line breaks around <div>.
			html = html.replace( /\s*<div/g, '\n<div' );
			html = html.replace( /<\/div>\s*/g, '</div>\n' );

// Fix line breaks around caption shortcodes.
			html = html.replace( /\s*\[caption([^\[]+)\[\/caption\]\s*/gi, '\n\n[caption$1[/caption]\n\n' );
			html = html.replace( /caption\]\n\n+\[caption/g, 'caption]\n\n[caption' );

// Pad block elements tags with a line break.
			html = html.replace( new RegExp('\\s*<((?:' + blocklist2 + ')(?: [^>]*)?)\\s*>', 'g' ), '\n<$1>' );
			html = html.replace( new RegExp('\\s*</(' + blocklist2 + ')>\\s*', 'g' ), '</$1>\n' );

// Indent <li>, <dt> and <dd> tags.
			html = html.replace( /<((li|dt|dd)[^>]*)>/g, ' \t<$1>' );

// Fix line breaks around <select> and <option>.
			if ( html.indexOf( '<option' ) !== -1 ) {
				html = html.replace( /\s*<option/g, '\n<option' );
				html = html.replace( /\s*<\/select>/g, '\n</select>' );
			}

// Pad <hr> with two line breaks.
			if ( html.indexOf( '<hr' ) !== -1 ) {
				html = html.replace( /\s*<hr( [^>]*)?>\s*/g, '\n\n<hr$1>\n\n' );
			}

// Remove line breaks in <object> tags.
			if ( html.indexOf( '<object' ) !== -1 ) {
				html = html.replace( /<object[\s\S]+?<\/object>/g, function( a ) {
					return a.replace( /[\r\n]+/g, '' );
				});
			}

// Unmark special paragraph closing tags.
			html = html.replace( /<\/p#>/g, '</p>\n' );

// Pad remaining <p> tags whit a line break.
			html = html.replace( /\s*(<p [^>]+>[\s\S]*?<\/p>)/g, '\n$1' );

// Trim.
			html = html.replace( /^\s+/, '' );
			html = html.replace( /[\s\u00a0]+$/, '' );

if ( preserve_linebreaks ) {
				html = html.replace( /<wp-line-break>/g, '\n' );
			}

if ( preserve_br ) {
				html = html.replace( /<wp-temp-br([^>]*)>/g, '<br$1>' );
			}

// Restore preserved tags.
			if ( preserve.length ) {
				html = html.replace( /<wp-preserve>/g, function() {
					return preserve.shift();
				} );
			}

return html;
		}

/**
		 * Replaces two line breaks with a paragraph tag and one line break with a <br>.
		 *
		 * Similar to `wpautop()` in formatting.php.
		 *
		 * @since 2.5.0
		 *
		 * @memberof switchEditors
		 *
		 * @param {string} text The text input.
		 * @return {string} The formatted text.
		 */
		function autop( text ) {
			var preserve_linebreaks = false,
				preserve_br = false,
				blocklist = 'table|thead|tfoot|caption|col|colgroup|tbody|tr|td|th|div|dl|dd|dt|ul|ol|li|pre' +
					'|form|map|area|blockquote|address|math|style|p|h[1-6]|hr|fieldset|legend|section' +
					'|article|aside|hgroup|header|footer|nav|figure|figcaption|details|menu|summary';

// Normalize line breaks.
			text = text.replace( /\r\n|\r/g, '\n' );

// Remove line breaks from <object>.
			if ( text.indexOf( '<object' ) !== -1 ) {
				text = text.replace( /<object[\s\S]+?<\/object>/g, function( a ) {
					return a.replace( /\n+/g, '' );
				});
			}

// Remove line breaks from tags.
			text = text.replace( /<[^<>]+>/g, function( a ) {
				return a.replace( /[\n\t ]+/g, ' ' );
			});

// Preserve line breaks in <pre> and <script> tags.
			if ( text.indexOf( '<pre' ) !== -1 || text.indexOf( '<script' ) !== -1 ) {
				preserve_linebreaks = true;
				text = text.replace( /<(pre|script)[^>]*>[\s\S]*?<\/\1>/g, function( a ) {
					return a.replace( /\n/g, '<wp-line-break>' );
				});
			}

if ( text.indexOf( '<figcaption' ) !== -1 ) {
				text = text.replace( /\s*(<figcaption[^>]*>)/g, '$1' );
				text = text.replace( /<\/figcaption>\s*/g, '</figcaption>' );
			}

// Keep <br> tags inside captions.
			if ( text.indexOf( '[caption' ) !== -1 ) {
				preserve_br = true;

text = text.replace( /\[caption[\s\S]+?\[\/caption\]/g, function( a ) {
					a = a.replace( /<br([^>]*)>/g, '<wp-temp-br$1>' );

a = a.replace( /<[^<>]+>/g, function( b ) {
						return b.replace( /[\n\t ]+/, ' ' );
					});

return a.replace( /\s*\n\s*/g, '<wp-temp-br />' );
				});
			}

text = text + '\n\n';
			text = text.replace( /<br \/>\s*<br \/>/gi, '\n\n' );

// Pad block tags with two line breaks.
			text = text.replace( new RegExp( '(<(?:' + blocklist + ')(?: [^>]*)?>)', 'gi' ), '\n\n$1' );
			text = text.replace( new RegExp( '(</(?:' + blocklist + ')>)', 'gi' ), '$1\n\n' );
			text = text.replace( /<hr( [^>]*)?>/gi, '<hr$1>\n\n' );

// Remove white space chars around <option>.
			text = text.replace( /\s*<option/gi, '<option' );
			text = text.replace( /<\/option>\s*/gi, '</option>' );

// Normalize multiple line breaks and white space chars.
			text = text.replace( /\n\s*\n+/g, '\n\n' );

// Convert two line breaks to a paragraph.
			text = text.replace( /([\s\S]+?)\n\n/g, '<p>$1</p>\n' );

// Remove empty paragraphs.
			text = text.replace( /<p>\s*?<\/p>/gi, '');

// Remove <p> tags that are around block tags.
			text = text.replace( new RegExp( '<p>\\s*(</?(?:' + blocklist + ')(?: [^>]*)?>)\\s*</p>', 'gi' ), '$1' );
			text = text.replace( /<p>(<li.+?)<\/p>/gi, '$1');

// Fix <p> in blockquotes.
			text = text.replace( /<p>\s*<blockquote([^>]*)>/gi, '<blockquote$1><p>');
			text = text.replace( /<\/blockquote>\s*<\/p>/gi, '</p></blockquote>');

// Remove <p> tags that are wrapped around block tags.
			text = text.replace( new RegExp( '<p>\\s*(</?(?:' + blocklist + ')(?: [^>]*)?>)', 'gi' ), '$1' );
			text = text.replace( new RegExp( '(</?(?:' + blocklist + ')(?: [^>]*)?>)\\s*</p>', 'gi' ), '$1' );

text = text.replace( /(<br[^>]*>)\s*\n/gi, '$1' );

// Add <br> tags.
			text = text.replace( /\s*\n/g, '<br />\n');

// Remove <br> tags that are around block tags.
			text = text.replace( new RegExp( '(</?(?:' + blocklist + ')[^>]*>)\\s*<br />', 'gi' ), '$1' );
			text = text.replace( /<br \/>(\s*<\/?(?:p|li|div|dl|dd|dt|th|pre|td|ul|ol)>)/gi, '$1' );

// Remove <p> and <br> around captions.
			text = text.replace( /(?:<p>|<br ?\/?>)*\s*\[caption([^\[]+)\[\/caption\]\s*(?:<\/p>|<br ?\/?>)*/gi, '[caption$1[/caption]' );

// Make sure there is <p> when there is </p> inside block tags that can contain other blocks.
			text = text.replace( /(<(?:div|th|td|form|fieldset|dd)[^>]*>)(.*?)<\/p>/g, function( a, b, c ) {
				if ( c.match( /<p( [^>]*)?>/ ) ) {
					return a;
				}

return b + '<p>' + c + '</p>';
			});

// Restore the line breaks in <pre> and <script> tags.
			if ( preserve_linebreaks ) {
				text = text.replace( /<wp-line-break>/g, '\n' );
			}

// Restore the <br> tags in captions.
			if ( preserve_br ) {
				text = text.replace( /<wp-temp-br([^>]*)>/g, '<br$1>' );
			}

return text;
		}

/**
		 * Fires custom jQuery events `beforePreWpautop` and `afterPreWpautop` when jQuery is available.
		 *
		 * @since 2.9.0
		 *
		 * @memberof switchEditors
		 *
		 * @param {string} html The content from the visual editor.
		 * @return {string} the filtered content.
		 */
		function pre_wpautop( html ) {
			var obj = { o: exports, data: html, unfiltered: html };

if ( $ ) {
				$( 'body' ).trigger( 'beforePreWpautop', [ obj ] );
			}

obj.data = removep( obj.data );

if ( $ ) {
				$( 'body' ).trigger( 'afterPreWpautop', [ obj ] );
			}

return obj.data;
		}

/**
		 * Fires custom jQuery events `beforeWpautop` and `afterWpautop` when jQuery is available.
		 *
		 * @since 2.9.0
		 *
		 * @memberof switchEditors
		 *
		 * @param {string} text The content from the text editor.
		 * @return {string} filtered content.
		 */
		function wpautop( text ) {
			var obj = { o: exports, data: text, unfiltered: text };

if ( $ ) {
				$( 'body' ).trigger( 'beforeWpautop', [ obj ] );
			}

obj.data = autop( obj.data );

if ( $ ) {
				$( 'body' ).trigger( 'afterWpautop', [ obj ] );
			}

return obj.data;
		}

if ( $ ) {
			$( init );
		} else if ( document.addEventListener ) {
			document.addEventListener( 'DOMContentLoaded', init, false );
			window.addEventListener( 'load', init, false );
		} else if ( window.attachEvent ) {
			window.attachEvent( 'onload', init );
			document.attachEvent( 'onreadystatechange', function() {
				if ( 'complete' === document.readyState ) {
					init();
				}
			} );
		}

wp.editor.autop = wpautop;
		wp.editor.removep = pre_wpautop;

exports = {
			go: switchEditor,
			wpautop: wpautop,
			pre_wpautop: pre_wpautop,
			_wp_Autop: autop,
			_wp_Nop: removep
		};

return exports;
	}

/**
	 * Expose the switch editors to be used globally.
	 *
	 * @namespace switchEditors
	 */
	window.switchEditors = new SwitchEditors();

/**
	 * Initialize TinyMCE and/or Quicktags. For use with wp_enqueue_editor() (PHP).
	 *
	 * Intended for use with an existing textarea that will become the Code editor tab.
	 * The editor width will be the width of the textarea container, height will be adjustable.
	 *
	 * Settings for both TinyMCE and Quicktags can be passed on initialization, and are "filtered"
	 * with custom jQuery events on the document element, wp-before-tinymce-init and wp-before-quicktags-init.
	 *
	 * @since 4.8.0
	 *
	 * @param {string} id The HTML id of the textarea that is used for the editor.
	 *                    Has to be jQuery compliant. No brackets, special chars, etc.
	 * @param {Object} settings Example:
	 * settings = {
	 *    // See https://www.tinymce.com/docs/configure/integration-and-setup/.
	 *    // Alternatively set to `true` to use the defaults.
	 *    tinymce: {
	 *        setup: function( editor ) {
	 *            console.log( 'Editor initialized', editor );
	 *        }
	 *    }
	 *
	 *    // Alternatively set to `true` to use the defaults.
	 *	  quicktags: {
	 *        buttons: 'strong,em,link'
	 *    }
	 * }
	 */
	wp.editor.initialize = function( id, settings ) {
		var init;
		var defaults;

if ( ! $ || ! id || ! wp.editor.getDefaultSettings ) {
			return;
		}

defaults = wp.editor.getDefaultSettings();

// Initialize TinyMCE by default.
		if ( ! settings ) {
			settings = {
				tinymce: true
			};
		}

// Add wrap and the Visual|Code tabs.
		if ( settings.tinymce && settings.quicktags ) {
			var $textarea = $( '#' + id );

var $wrap = $( '<div>' ).attr( {
					'class': 'wp-core-ui wp-editor-wrap tmce-active',
					id: 'wp-' + id + '-wrap'
				} );

var $editorContainer = $( '<div class="wp-editor-container">' );

var $button = $( '<button>' ).attr( {
					type: 'button',
					'data-wp-editor-id': id
				} );

var $editorTools = $( '<div class="wp-editor-tools">' );

if ( settings.mediaButtons ) {
				var buttonText = 'Add Media';

if ( window._wpMediaViewsL10n && window._wpMediaViewsL10n.addMedia ) {
					buttonText = window._wpMediaViewsL10n.addMedia;
				}

var $addMediaButton = $( '<button type="button" class="button insert-media add_media">' );

$addMediaButton.append( '<span class="wp-media-buttons-icon"></span>' );
				$addMediaButton.append( document.createTextNode( ' ' + buttonText ) );
				$addMediaButton.data( 'editor', id );

$editorTools.append(
					$( '<div class="wp-media-buttons">' )
						.append( $addMediaButton )
				);
			}

$wrap.append(
				$editorTools
					.append( $( '<div class="wp-editor-tabs">' )
						.append( $button.clone().attr({
							id: id + '-tmce',
							'class': 'wp-switch-editor switch-tmce'
						}).text( window.tinymce.translate( 'Visual' ) ) )
						.append( $button.attr({
							id: id + '-html',
							'class': 'wp-switch-editor switch-html'
						}).text( window.tinymce.translate( 'Code|tab' ) ) )
					).append( $editorContainer )
			);

$textarea.after( $wrap );
			$editorContainer.append( $textarea );
		}

if ( window.tinymce && settings.tinymce ) {
			if ( typeof settings.tinymce !== 'object' ) {
				settings.tinymce = {};
			}

init = $.extend( {}, defaults.tinymce, settings.tinymce );
			init.selector = '#' + id;

$( document ).trigger( 'wp-before-tinymce-init', init );
			window.tinymce.init( init );

if ( ! window.wpActiveEditor ) {
				window.wpActiveEditor = id;
			}
		}

if ( window.quicktags && settings.quicktags ) {
			if ( typeof settings.quicktags !== 'object' ) {
				settings.quicktags = {};
			}

init = $.extend( {}, defaults.quicktags, settings.quicktags );
			init.id = id;

$( document ).trigger( 'wp-before-quicktags-init', init );
			window.quicktags( init );

if ( ! window.wpActiveEditor ) {
				window.wpActiveEditor = init.id;
			}
		}
	};

/**
	 * Remove one editor instance.
	 *
	 * Intended for use with editors that were initialized with wp.editor.initialize().
	 *
	 * @since 4.8.0
	 *
	 * @param {string} id The HTML id of the editor textarea.
	 */
	wp.editor.remove = function( id ) {
		var mceInstance, qtInstance,
			$wrap = $( '#wp-' + id + '-wrap' );

if ( window.tinymce ) {
			mceInstance = window.tinymce.get( id );

if ( mceInstance ) {
				if ( ! mceInstance.isHidden() ) {
					mceInstance.save();
				}

mceInstance.remove();
			}
		}

if ( window.quicktags ) {
			qtInstance = window.QTags.getInstance( id );

if ( qtInstance ) {
				qtInstance.remove();
			}
		}

if ( $wrap.length ) {
			$wrap.after( $( '#' + id ) );
			$wrap.remove();
		}
	};

/**
	 * Get the editor content.
	 *
	 * Intended for use with editors that were initialized with wp.editor.initialize().
	 *
	 * @since 4.8.0
	 *
	 * @param {string} id The HTML id of the editor textarea.
	 * @return The editor content.
	 */
	wp.editor.getContent = function( id ) {
		var editor;

if ( ! $ || ! id ) {
			return;
		}

if ( window.tinymce ) {
			editor = window.tinymce.get( id );

if ( editor && ! editor.isHidden() ) {
				editor.save();
			}
		}

return $( '#' + id ).val();
	};

}( window.jQuery, window.wp ));

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