diff options
Diffstat (limited to 'wp-includes/js/wplink.js')
| -rw-r--r-- | wp-includes/js/wplink.js | 802 |
1 files changed, 802 insertions, 0 deletions
diff --git a/wp-includes/js/wplink.js b/wp-includes/js/wplink.js new file mode 100644 index 0000000..89adf33 --- /dev/null +++ b/wp-includes/js/wplink.js @@ -0,0 +1,802 @@ +/** + * @output wp-includes/js/wplink.js + */ + + /* global wpLink */ + +( function( $, wpLinkL10n, wp ) { + var editor, searchTimer, River, Query, correctedURL, + emailRegexp = /^[A-Z0-9._%+-]+@[A-Z0-9.-]+\.[A-Z]{2,63}$/i, + urlRegexp = /^(https?|ftp):\/\/[A-Z0-9.-]+\.[A-Z]{2,63}[^ "]*$/i, + inputs = {}, + rivers = {}, + isTouch = ( 'ontouchend' in document ); + + function getLink() { + if ( editor ) { + return editor.$( 'a[data-wplink-edit="true"]' ); + } + + return null; + } + + window.wpLink = { + timeToTriggerRiver: 150, + minRiverAJAXDuration: 200, + riverBottomThreshold: 5, + keySensitivity: 100, + lastSearch: '', + textarea: '', + modalOpen: false, + + init: function() { + inputs.wrap = $('#wp-link-wrap'); + inputs.dialog = $( '#wp-link' ); + inputs.backdrop = $( '#wp-link-backdrop' ); + inputs.submit = $( '#wp-link-submit' ); + inputs.close = $( '#wp-link-close' ); + + // Input. + inputs.text = $( '#wp-link-text' ); + inputs.url = $( '#wp-link-url' ); + inputs.nonce = $( '#_ajax_linking_nonce' ); + inputs.openInNewTab = $( '#wp-link-target' ); + inputs.search = $( '#wp-link-search' ); + + // Build rivers. + rivers.search = new River( $( '#search-results' ) ); + rivers.recent = new River( $( '#most-recent-results' ) ); + rivers.elements = inputs.dialog.find( '.query-results' ); + + // Get search notice text. + inputs.queryNotice = $( '#query-notice-message' ); + inputs.queryNoticeTextDefault = inputs.queryNotice.find( '.query-notice-default' ); + inputs.queryNoticeTextHint = inputs.queryNotice.find( '.query-notice-hint' ); + + // Bind event handlers. + inputs.dialog.on( 'keydown', wpLink.keydown ); + inputs.dialog.on( 'keyup', wpLink.keyup ); + inputs.submit.on( 'click', function( event ) { + event.preventDefault(); + wpLink.update(); + }); + + inputs.close.add( inputs.backdrop ).add( '#wp-link-cancel button' ).on( 'click', function( event ) { + event.preventDefault(); + wpLink.close(); + }); + + rivers.elements.on( 'river-select', wpLink.updateFields ); + + // Display 'hint' message when search field or 'query-results' box are focused. + inputs.search.on( 'focus.wplink', function() { + inputs.queryNoticeTextDefault.hide(); + inputs.queryNoticeTextHint.removeClass( 'screen-reader-text' ).show(); + } ).on( 'blur.wplink', function() { + inputs.queryNoticeTextDefault.show(); + inputs.queryNoticeTextHint.addClass( 'screen-reader-text' ).hide(); + } ); + + inputs.search.on( 'keyup input', function() { + window.clearTimeout( searchTimer ); + searchTimer = window.setTimeout( function() { + wpLink.searchInternalLinks(); + }, 500 ); + }); + + inputs.url.on( 'paste', function() { + setTimeout( wpLink.correctURL, 0 ); + } ); + + inputs.url.on( 'blur', wpLink.correctURL ); + }, + + // If URL wasn't corrected last time and doesn't start with http:, https:, ? # or /, prepend http://. + correctURL: function () { + var url = inputs.url.val().trim(); + + if ( url && correctedURL !== url && ! /^(?:[a-z]+:|#|\?|\.|\/)/.test( url ) ) { + inputs.url.val( 'http://' + url ); + correctedURL = url; + } + }, + + open: function( editorId, url, text ) { + var ed, + $body = $( document.body ); + + $body.addClass( 'modal-open' ); + wpLink.modalOpen = true; + + wpLink.range = null; + + if ( editorId ) { + window.wpActiveEditor = editorId; + } + + if ( ! window.wpActiveEditor ) { + return; + } + + this.textarea = $( '#' + window.wpActiveEditor ).get( 0 ); + + if ( typeof window.tinymce !== 'undefined' ) { + // Make sure the link wrapper is the last element in the body, + // or the inline editor toolbar may show above the backdrop. + $body.append( inputs.backdrop, inputs.wrap ); + + ed = window.tinymce.get( window.wpActiveEditor ); + + if ( ed && ! ed.isHidden() ) { + editor = ed; + } else { + editor = null; + } + } + + if ( ! wpLink.isMCE() && document.selection ) { + this.textarea.focus(); + this.range = document.selection.createRange(); + } + + inputs.wrap.show(); + inputs.backdrop.show(); + + wpLink.refresh( url, text ); + + $( document ).trigger( 'wplink-open', inputs.wrap ); + }, + + isMCE: function() { + return editor && ! editor.isHidden(); + }, + + refresh: function( url, text ) { + var linkText = ''; + + // Refresh rivers (clear links, check visibility). + rivers.search.refresh(); + rivers.recent.refresh(); + + if ( wpLink.isMCE() ) { + wpLink.mceRefresh( url, text ); + } else { + // For the Text editor the "Link text" field is always shown. + if ( ! inputs.wrap.hasClass( 'has-text-field' ) ) { + inputs.wrap.addClass( 'has-text-field' ); + } + + if ( document.selection ) { + // Old IE. + linkText = document.selection.createRange().text || text || ''; + } else if ( typeof this.textarea.selectionStart !== 'undefined' && + ( this.textarea.selectionStart !== this.textarea.selectionEnd ) ) { + // W3C. + text = this.textarea.value.substring( this.textarea.selectionStart, this.textarea.selectionEnd ) || text || ''; + } + + inputs.text.val( text ); + wpLink.setDefaultValues(); + } + + if ( isTouch ) { + // Close the onscreen keyboard. + inputs.url.trigger( 'focus' ).trigger( 'blur' ); + } else { + /* + * Focus the URL field and highlight its contents. + * If this is moved above the selection changes, + * IE will show a flashing cursor over the dialog. + */ + window.setTimeout( function() { + inputs.url[0].select(); + inputs.url.trigger( 'focus' ); + } ); + } + + // Load the most recent results if this is the first time opening the panel. + if ( ! rivers.recent.ul.children().length ) { + rivers.recent.ajax(); + } + + correctedURL = inputs.url.val().replace( /^http:\/\//, '' ); + }, + + hasSelectedText: function( linkNode ) { + var node, nodes, i, html = editor.selection.getContent(); + + // Partial html and not a fully selected anchor element. + if ( /</.test( html ) && ( ! /^<a [^>]+>[^<]+<\/a>$/.test( html ) || html.indexOf('href=') === -1 ) ) { + return false; + } + + if ( linkNode.length ) { + nodes = linkNode[0].childNodes; + + if ( ! nodes || ! nodes.length ) { + return false; + } + + for ( i = nodes.length - 1; i >= 0; i-- ) { + node = nodes[i]; + + if ( node.nodeType != 3 && ! window.tinymce.dom.BookmarkManager.isBookmarkNode( node ) ) { + return false; + } + } + } + + return true; + }, + + mceRefresh: function( searchStr, text ) { + var linkText, href, + linkNode = getLink(), + onlyText = this.hasSelectedText( linkNode ); + + if ( linkNode.length ) { + linkText = linkNode.text(); + href = linkNode.attr( 'href' ); + + if ( ! linkText.trim() ) { + linkText = text || ''; + } + + if ( searchStr && ( urlRegexp.test( searchStr ) || emailRegexp.test( searchStr ) ) ) { + href = searchStr; + } + + if ( href !== '_wp_link_placeholder' ) { + inputs.url.val( href ); + inputs.openInNewTab.prop( 'checked', '_blank' === linkNode.attr( 'target' ) ); + inputs.submit.val( wpLinkL10n.update ); + } else { + this.setDefaultValues( linkText ); + } + + if ( searchStr && searchStr !== href ) { + // The user has typed something in the inline dialog. Trigger a search with it. + inputs.search.val( searchStr ); + } else { + inputs.search.val( '' ); + } + + // Always reset the search. + window.setTimeout( function() { + wpLink.searchInternalLinks(); + } ); + } else { + linkText = editor.selection.getContent({ format: 'text' }) || text || ''; + this.setDefaultValues( linkText ); + } + + if ( onlyText ) { + inputs.text.val( linkText ); + inputs.wrap.addClass( 'has-text-field' ); + } else { + inputs.text.val( '' ); + inputs.wrap.removeClass( 'has-text-field' ); + } + }, + + close: function( reset ) { + $( document.body ).removeClass( 'modal-open' ); + wpLink.modalOpen = false; + + if ( reset !== 'noReset' ) { + if ( ! wpLink.isMCE() ) { + wpLink.textarea.focus(); + + if ( wpLink.range ) { + wpLink.range.moveToBookmark( wpLink.range.getBookmark() ); + wpLink.range.select(); + } + } else { + if ( editor.plugins.wplink ) { + editor.plugins.wplink.close(); + } + + editor.focus(); + } + } + + inputs.backdrop.hide(); + inputs.wrap.hide(); + + correctedURL = false; + + $( document ).trigger( 'wplink-close', inputs.wrap ); + }, + + getAttrs: function() { + wpLink.correctURL(); + + return { + href: inputs.url.val().trim(), + target: inputs.openInNewTab.prop( 'checked' ) ? '_blank' : null + }; + }, + + buildHtml: function(attrs) { + var html = '<a href="' + attrs.href + '"'; + + if ( attrs.target ) { + html += ' rel="noopener" target="' + attrs.target + '"'; + } + + return html + '>'; + }, + + update: function() { + if ( wpLink.isMCE() ) { + wpLink.mceUpdate(); + } else { + wpLink.htmlUpdate(); + } + }, + + htmlUpdate: function() { + var attrs, text, html, begin, end, cursor, selection, + textarea = wpLink.textarea; + + if ( ! textarea ) { + return; + } + + attrs = wpLink.getAttrs(); + text = inputs.text.val(); + + var parser = document.createElement( 'a' ); + parser.href = attrs.href; + + if ( 'javascript:' === parser.protocol || 'data:' === parser.protocol ) { // jshint ignore:line + attrs.href = ''; + } + + // If there's no href, return. + if ( ! attrs.href ) { + return; + } + + html = wpLink.buildHtml(attrs); + + // Insert HTML. + if ( document.selection && wpLink.range ) { + // IE. + // Note: If no text is selected, IE will not place the cursor + // inside the closing tag. + textarea.focus(); + wpLink.range.text = html + ( text || wpLink.range.text ) + '</a>'; + wpLink.range.moveToBookmark( wpLink.range.getBookmark() ); + wpLink.range.select(); + + wpLink.range = null; + } else if ( typeof textarea.selectionStart !== 'undefined' ) { + // W3C. + begin = textarea.selectionStart; + end = textarea.selectionEnd; + selection = text || textarea.value.substring( begin, end ); + html = html + selection + '</a>'; + cursor = begin + html.length; + + // If no text is selected, place the cursor inside the closing tag. + if ( begin === end && ! selection ) { + cursor -= 4; + } + + textarea.value = ( + textarea.value.substring( 0, begin ) + + html + + textarea.value.substring( end, textarea.value.length ) + ); + + // Update cursor position. + textarea.selectionStart = textarea.selectionEnd = cursor; + } + + wpLink.close(); + textarea.focus(); + $( textarea ).trigger( 'change' ); + + // Audible confirmation message when a link has been inserted in the Editor. + wp.a11y.speak( wpLinkL10n.linkInserted ); + }, + + mceUpdate: function() { + var attrs = wpLink.getAttrs(), + $link, text, hasText; + + var parser = document.createElement( 'a' ); + parser.href = attrs.href; + + if ( 'javascript:' === parser.protocol || 'data:' === parser.protocol ) { // jshint ignore:line + attrs.href = ''; + } + + if ( ! attrs.href ) { + editor.execCommand( 'unlink' ); + wpLink.close(); + return; + } + + $link = getLink(); + + editor.undoManager.transact( function() { + if ( ! $link.length ) { + editor.execCommand( 'mceInsertLink', false, { href: '_wp_link_placeholder', 'data-wp-temp-link': 1 } ); + $link = editor.$( 'a[data-wp-temp-link="1"]' ).removeAttr( 'data-wp-temp-link' ); + hasText = $link.text().trim(); + } + + if ( ! $link.length ) { + editor.execCommand( 'unlink' ); + } else { + if ( inputs.wrap.hasClass( 'has-text-field' ) ) { + text = inputs.text.val(); + + if ( text ) { + $link.text( text ); + } else if ( ! hasText ) { + $link.text( attrs.href ); + } + } + + attrs['data-wplink-edit'] = null; + attrs['data-mce-href'] = attrs.href; + $link.attr( attrs ); + } + } ); + + wpLink.close( 'noReset' ); + editor.focus(); + + if ( $link.length ) { + editor.selection.select( $link[0] ); + + if ( editor.plugins.wplink ) { + editor.plugins.wplink.checkLink( $link[0] ); + } + } + + editor.nodeChanged(); + + // Audible confirmation message when a link has been inserted in the Editor. + wp.a11y.speak( wpLinkL10n.linkInserted ); + }, + + updateFields: function( e, li ) { + inputs.url.val( li.children( '.item-permalink' ).val() ); + + if ( inputs.wrap.hasClass( 'has-text-field' ) && ! inputs.text.val() ) { + inputs.text.val( li.children( '.item-title' ).text() ); + } + }, + + getUrlFromSelection: function( selection ) { + if ( ! selection ) { + if ( this.isMCE() ) { + selection = editor.selection.getContent({ format: 'text' }); + } else if ( document.selection && wpLink.range ) { + selection = wpLink.range.text; + } else if ( typeof this.textarea.selectionStart !== 'undefined' ) { + selection = this.textarea.value.substring( this.textarea.selectionStart, this.textarea.selectionEnd ); + } + } + + selection = selection || ''; + selection = selection.trim(); + + if ( selection && emailRegexp.test( selection ) ) { + // Selection is email address. + return 'mailto:' + selection; + } else if ( selection && urlRegexp.test( selection ) ) { + // Selection is URL. + return selection.replace( /&|�?38;/gi, '&' ); + } + + return ''; + }, + + setDefaultValues: function( selection ) { + inputs.url.val( this.getUrlFromSelection( selection ) ); + + // Empty the search field and swap the "rivers". + inputs.search.val(''); + wpLink.searchInternalLinks(); + + // Update save prompt. + inputs.submit.val( wpLinkL10n.save ); + }, + + searchInternalLinks: function() { + var waiting, + search = inputs.search.val() || '', + minInputLength = parseInt( wpLinkL10n.minInputLength, 10 ) || 3; + + if ( search.length >= minInputLength ) { + rivers.recent.hide(); + rivers.search.show(); + + // Don't search if the keypress didn't change the title. + if ( wpLink.lastSearch == search ) + return; + + wpLink.lastSearch = search; + waiting = inputs.search.parent().find( '.spinner' ).addClass( 'is-active' ); + + rivers.search.change( search ); + rivers.search.ajax( function() { + waiting.removeClass( 'is-active' ); + }); + } else { + rivers.search.hide(); + rivers.recent.show(); + } + }, + + next: function() { + rivers.search.next(); + rivers.recent.next(); + }, + + prev: function() { + rivers.search.prev(); + rivers.recent.prev(); + }, + + keydown: function( event ) { + var fn, id; + + // Escape key. + if ( 27 === event.keyCode ) { + wpLink.close(); + event.stopImmediatePropagation(); + // Tab key. + } else if ( 9 === event.keyCode ) { + id = event.target.id; + + // wp-link-submit must always be the last focusable element in the dialog. + // Following focusable elements will be skipped on keyboard navigation. + if ( id === 'wp-link-submit' && ! event.shiftKey ) { + inputs.close.trigger( 'focus' ); + event.preventDefault(); + } else if ( id === 'wp-link-close' && event.shiftKey ) { + inputs.submit.trigger( 'focus' ); + event.preventDefault(); + } + } + + // Up Arrow and Down Arrow keys. + if ( event.shiftKey || ( 38 !== event.keyCode && 40 !== event.keyCode ) ) { + return; + } + + if ( document.activeElement && + ( document.activeElement.id === 'link-title-field' || document.activeElement.id === 'url-field' ) ) { + return; + } + + // Up Arrow key. + fn = 38 === event.keyCode ? 'prev' : 'next'; + clearInterval( wpLink.keyInterval ); + wpLink[ fn ](); + wpLink.keyInterval = setInterval( wpLink[ fn ], wpLink.keySensitivity ); + event.preventDefault(); + }, + + keyup: function( event ) { + // Up Arrow and Down Arrow keys. + if ( 38 === event.keyCode || 40 === event.keyCode ) { + clearInterval( wpLink.keyInterval ); + event.preventDefault(); + } + }, + + delayedCallback: function( func, delay ) { + var timeoutTriggered, funcTriggered, funcArgs, funcContext; + + if ( ! delay ) + return func; + + setTimeout( function() { + if ( funcTriggered ) + return func.apply( funcContext, funcArgs ); + // Otherwise, wait. + timeoutTriggered = true; + }, delay ); + + return function() { + if ( timeoutTriggered ) + return func.apply( this, arguments ); + // Otherwise, wait. + funcArgs = arguments; + funcContext = this; + funcTriggered = true; + }; + } + }; + + River = function( element, search ) { + var self = this; + this.element = element; + this.ul = element.children( 'ul' ); + this.contentHeight = element.children( '#link-selector-height' ); + this.waiting = element.find('.river-waiting'); + + this.change( search ); + this.refresh(); + + $( '#wp-link .query-results, #wp-link #link-selector' ).on( 'scroll', function() { + self.maybeLoad(); + }); + element.on( 'click', 'li', function( event ) { + self.select( $( this ), event ); + }); + }; + + $.extend( River.prototype, { + refresh: function() { + this.deselect(); + this.visible = this.element.is( ':visible' ); + }, + show: function() { + if ( ! this.visible ) { + this.deselect(); + this.element.show(); + this.visible = true; + } + }, + hide: function() { + this.element.hide(); + this.visible = false; + }, + // Selects a list item and triggers the river-select event. + select: function( li, event ) { + var liHeight, elHeight, liTop, elTop; + + if ( li.hasClass( 'unselectable' ) || li == this.selected ) + return; + + this.deselect(); + this.selected = li.addClass( 'selected' ); + // Make sure the element is visible. + liHeight = li.outerHeight(); + elHeight = this.element.height(); + liTop = li.position().top; + elTop = this.element.scrollTop(); + + if ( liTop < 0 ) // Make first visible element. + this.element.scrollTop( elTop + liTop ); + else if ( liTop + liHeight > elHeight ) // Make last visible element. + this.element.scrollTop( elTop + liTop - elHeight + liHeight ); + + // Trigger the river-select event. + this.element.trigger( 'river-select', [ li, event, this ] ); + }, + deselect: function() { + if ( this.selected ) + this.selected.removeClass( 'selected' ); + this.selected = false; + }, + prev: function() { + if ( ! this.visible ) + return; + + var to; + if ( this.selected ) { + to = this.selected.prev( 'li' ); + if ( to.length ) + this.select( to ); + } + }, + next: function() { + if ( ! this.visible ) + return; + + var to = this.selected ? this.selected.next( 'li' ) : $( 'li:not(.unselectable):first', this.element ); + if ( to.length ) + this.select( to ); + }, + ajax: function( callback ) { + var self = this, + delay = this.query.page == 1 ? 0 : wpLink.minRiverAJAXDuration, + response = wpLink.delayedCallback( function( results, params ) { + self.process( results, params ); + if ( callback ) + callback( results, params ); + }, delay ); + + this.query.ajax( response ); + }, + change: function( search ) { + if ( this.query && this._search == search ) + return; + + this._search = search; + this.query = new Query( search ); + this.element.scrollTop( 0 ); + }, + process: function( results, params ) { + var list = '', alt = true, classes = '', + firstPage = params.page == 1; + + if ( ! results ) { + if ( firstPage ) { + list += '<li class="unselectable no-matches-found"><span class="item-title"><em>' + + wpLinkL10n.noMatchesFound + '</em></span></li>'; + } + } else { + $.each( results, function() { + classes = alt ? 'alternate' : ''; + classes += this.title ? '' : ' no-title'; + list += classes ? '<li class="' + classes + '">' : '<li>'; + list += '<input type="hidden" class="item-permalink" value="' + this.permalink + '" />'; + list += '<span class="item-title">'; + list += this.title ? this.title : wpLinkL10n.noTitle; + list += '</span><span class="item-info">' + this.info + '</span></li>'; + alt = ! alt; + }); + } + + this.ul[ firstPage ? 'html' : 'append' ]( list ); + }, + maybeLoad: function() { + var self = this, + el = this.element, + bottom = el.scrollTop() + el.height(); + + if ( ! this.query.ready() || bottom < this.contentHeight.height() - wpLink.riverBottomThreshold ) + return; + + setTimeout(function() { + var newTop = el.scrollTop(), + newBottom = newTop + el.height(); + + if ( ! self.query.ready() || newBottom < self.contentHeight.height() - wpLink.riverBottomThreshold ) + return; + + self.waiting.addClass( 'is-active' ); + el.scrollTop( newTop + self.waiting.outerHeight() ); + + self.ajax( function() { + self.waiting.removeClass( 'is-active' ); + }); + }, wpLink.timeToTriggerRiver ); + } + }); + + Query = function( search ) { + this.page = 1; + this.allLoaded = false; + this.querying = false; + this.search = search; + }; + + $.extend( Query.prototype, { + ready: function() { + return ! ( this.querying || this.allLoaded ); + }, + ajax: function( callback ) { + var self = this, + query = { + action : 'wp-link-ajax', + page : this.page, + '_ajax_linking_nonce' : inputs.nonce.val() + }; + + if ( this.search ) + query.search = this.search; + + this.querying = true; + + $.post( window.ajaxurl, query, function( r ) { + self.page++; + self.querying = false; + self.allLoaded = ! r; + callback( r, query ); + }, 'json' ); + } + }); + + $( wpLink.init ); +})( jQuery, window.wpLinkL10n, window.wp ); |