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Diffstat (limited to 'wp-admin/js/editor.js')
| -rw-r--r-- | wp-admin/js/editor.js | 1416 |
1 files changed, 1416 insertions, 0 deletions
diff --git a/wp-admin/js/editor.js b/wp-admin/js/editor.js new file mode 100644 index 0000000..d5fe958 --- /dev/null +++ b/wp-admin/js/editor.js @@ -0,0 +1,1416 @@ +/** + * @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/Text 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 = $$( '.mce-toolbar-grp', editor.getContainer() )[0], + height = node && node.clientHeight; + + if ( height && height > 10 && height < 200 ) { + return parseInt( height, 10 ); + } + + return 30; + } + + /** + * Switches the editor between Visual and Text mode. + * + * @since 2.5.0 + * + * @memberof switchEditors + * + * @param {string} id The id of the editor you want to change the editor mode for. Default: `content`. + * @param {string} mode The mode you want to switch to. Default: `toggle`. + * @return {void} + */ + function switchEditor( id, mode ) { + id = id || 'content'; + mode = mode || 'toggle'; + + var editorHeight, toolbarHeight, iframe, + editor = tinymce.get( id ), + wrap = $$( '#wp-' + id + '-wrap' ), + $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; + + var keepSelection = false; + if ( editor ) { + keepSelection = editor.getParam( 'wp_keep_scroll_position' ); + } else { + keepSelection = window.tinyMCEPreInit.mceInit[ id ] && + window.tinyMCEPreInit.mceInit[ id ].wp_keep_scroll_position; + } + + if ( keepSelection ) { + // Save the selection. + 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 ); + } + } + + if ( editor.getParam( 'wp_keep_scroll_position' ) ) { + // Restore the selection. + focusHTMLBookmarkInVisualEditor( editor ); + } + } else { + tinymce.init( window.tinyMCEPreInit.mceInit[ id ] ); + } + + wrap.removeClass( 'html-active' ).addClass( 'tmce-active' ); + $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; + + if ( editor.getParam( 'wp_keep_scroll_position' ) ) { + 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' ); + $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-look-alikes 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 ); + } + } + + if ( editor.getParam( 'wp_keep_scroll_position' ) ) { + 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} $marker The marker to be removed from the editor DOM, wrapped in an instnce of `editor.$` + */ + 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[^>]*\\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 Text 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 Text 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|Text 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( 'Text' ) ) ) + ).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 )); |