/** * @file Contains all dynamic functionality needed on post and term pages. * * @output wp-admin/js/post.js */ /* global ajaxurl, wpAjax, postboxes, pagenow, tinymce, alert, deleteUserSetting, ClipboardJS */ /* global theList:true, theExtraList:true, getUserSetting, setUserSetting, commentReply, commentsBox */ /* global WPSetThumbnailHTML, wptitlehint */ // Backward compatibility: prevent fatal errors. window.makeSlugeditClickable = window.editPermalink = function(){}; // Make sure the wp object exists. window.wp = window.wp || {}; ( function( $ ) { var titleHasFocus = false, __ = wp.i18n.__; /** * Control loading of comments on the post and term edit pages. * * @type {{st: number, get: commentsBox.get, load: commentsBox.load}} * * @namespace commentsBox */ window.commentsBox = { // Comment offset to use when fetching new comments. st : 0, /** * Fetch comments using Ajax and display them in the box. * * @memberof commentsBox * * @param {number} total Total number of comments for this post. * @param {number} num Optional. Number of comments to fetch, defaults to 20. * @return {boolean} Always returns false. */ get : function(total, num) { var st = this.st, data; if ( ! num ) num = 20; this.st += num; this.total = total; $( '#commentsdiv .spinner' ).addClass( 'is-active' ); data = { 'action' : 'get-comments', 'mode' : 'single', '_ajax_nonce' : $('#add_comment_nonce').val(), 'p' : $('#post_ID').val(), 'start' : st, 'number' : num }; $.post( ajaxurl, data, function(r) { r = wpAjax.parseAjaxResponse(r); $('#commentsdiv .widefat').show(); $( '#commentsdiv .spinner' ).removeClass( 'is-active' ); if ( 'object' == typeof r && r.responses[0] ) { $('#the-comment-list').append( r.responses[0].data ); theList = theExtraList = null; $( 'a[className*=\':\']' ).off(); // If the offset is over the total number of comments we cannot fetch any more, so hide the button. if ( commentsBox.st > commentsBox.total ) $('#show-comments').hide(); else $('#show-comments').show().children('a').text( __( 'Show more comments' ) ); return; } else if ( 1 == r ) { $('#show-comments').text( __( 'No more comments found.' ) ); return; } $('#the-comment-list').append(''+wpAjax.broken+''); } ); return false; }, /** * Load the next batch of comments. * * @memberof commentsBox * * @param {number} total Total number of comments to load. */ load: function(total){ this.st = jQuery('#the-comment-list tr.comment:visible').length; this.get(total); } }; /** * Overwrite the content of the Featured Image postbox * * @param {string} html New HTML to be displayed in the content area of the postbox. * * @global */ window.WPSetThumbnailHTML = function(html){ $('.inside', '#postimagediv').html(html); }; /** * Set the Image ID of the Featured Image * * @param {number} id The post_id of the image to use as Featured Image. * * @global */ window.WPSetThumbnailID = function(id){ var field = $('input[value="_thumbnail_id"]', '#list-table'); if ( field.length > 0 ) { $('#meta\\[' + field.attr('id').match(/[0-9]+/) + '\\]\\[value\\]').text(id); } }; /** * Remove the Featured Image * * @param {string} nonce Nonce to use in the request. * * @global */ window.WPRemoveThumbnail = function(nonce){ $.post( ajaxurl, { action: 'set-post-thumbnail', post_id: $( '#post_ID' ).val(), thumbnail_id: -1, _ajax_nonce: nonce, cookie: encodeURIComponent( document.cookie ) }, /** * Handle server response * * @param {string} str Response, will be '0' when an error occurred otherwise contains link to add Featured Image. */ function(str){ if ( str == '0' ) { alert( __( 'Could not set that as the thumbnail image. Try a different attachment.' ) ); } else { WPSetThumbnailHTML(str); } } ); }; /** * Heartbeat locks. * * Used to lock editing of an object by only one user at a time. * * When the user does not send a heartbeat in a heartbeat-time * the user is no longer editing and another user can start editing. */ $(document).on( 'heartbeat-send.refresh-lock', function( e, data ) { var lock = $('#active_post_lock').val(), post_id = $('#post_ID').val(), send = {}; if ( ! post_id || ! $('#post-lock-dialog').length ) return; send.post_id = post_id; if ( lock ) send.lock = lock; data['wp-refresh-post-lock'] = send; }).on( 'heartbeat-tick.refresh-lock', function( e, data ) { // Post locks: update the lock string or show the dialog if somebody has taken over editing. var received, wrap, avatar; if ( data['wp-refresh-post-lock'] ) { received = data['wp-refresh-post-lock']; if ( received.lock_error ) { // Show "editing taken over" message. wrap = $('#post-lock-dialog'); if ( wrap.length && ! wrap.is(':visible') ) { if ( wp.autosave ) { // Save the latest changes and disable. $(document).one( 'heartbeat-tick', function() { wp.autosave.server.suspend(); wrap.removeClass('saving').addClass('saved'); $(window).off( 'beforeunload.edit-post' ); }); wrap.addClass('saving'); wp.autosave.server.triggerSave(); } if ( received.lock_error.avatar_src ) { avatar = $( '', { 'class': 'avatar avatar-64 photo', width: 64, height: 64, alt: '', src: received.lock_error.avatar_src, srcset: received.lock_error.avatar_src_2x ? received.lock_error.avatar_src_2x + ' 2x' : undefined } ); wrap.find('div.post-locked-avatar').empty().append( avatar ); } wrap.show().find('.currently-editing').text( received.lock_error.text ); wrap.find('.wp-tab-first').trigger( 'focus' ); } } else if ( received.new_lock ) { $('#active_post_lock').val( received.new_lock ); } } }).on( 'before-autosave.update-post-slug', function() { titleHasFocus = document.activeElement && document.activeElement.id === 'title'; }).on( 'after-autosave.update-post-slug', function() { /* * Create slug area only if not already there * and the title field was not focused (user was not typing a title) when autosave ran. */ if ( ! $('#edit-slug-box > *').length && ! titleHasFocus ) { $.post( ajaxurl, { action: 'sample-permalink', post_id: $('#post_ID').val(), new_title: $('#title').val(), samplepermalinknonce: $('#samplepermalinknonce').val() }, function( data ) { if ( data != '-1' ) { $('#edit-slug-box').html(data); } } ); } }); }(jQuery)); /** * Heartbeat refresh nonces. */ (function($) { var check, timeout; /** * Only allow to check for nonce refresh every 30 seconds. */ function schedule() { check = false; window.clearTimeout( timeout ); timeout = window.setTimeout( function(){ check = true; }, 300000 ); } $( function() { schedule(); }).on( 'heartbeat-send.wp-refresh-nonces', function( e, data ) { var post_id, $authCheck = $('#wp-auth-check-wrap'); if ( check || ( $authCheck.length && ! $authCheck.hasClass( 'hidden' ) ) ) { if ( ( post_id = $('#post_ID').val() ) && $('#_wpnonce').val() ) { data['wp-refresh-post-nonces'] = { post_id: post_id }; } } }).on( 'heartbeat-tick.wp-refresh-nonces', function( e, data ) { var nonces = data['wp-refresh-post-nonces']; if ( nonces ) { schedule(); if ( nonces.replace ) { $.each( nonces.replace, function( selector, value ) { $( '#' + selector ).val( value ); }); } if ( nonces.heartbeatNonce ) window.heartbeatSettings.nonce = nonces.heartbeatNonce; } }); }(jQuery)); /** * All post and postbox controls and functionality. */ jQuery( function($) { var stamp, visibility, $submitButtons, updateVisibility, updateText, $textarea = $('#content'), $document = $(document), postId = $('#post_ID').val() || 0, $submitpost = $('#submitpost'), releaseLock = true, $postVisibilitySelect = $('#post-visibility-select'), $timestampdiv = $('#timestampdiv'), $postStatusSelect = $('#post-status-select'), isMac = window.navigator.platform ? window.navigator.platform.indexOf( 'Mac' ) !== -1 : false, copyAttachmentURLClipboard = new ClipboardJS( '.copy-attachment-url.edit-media' ), copyAttachmentURLSuccessTimeout, __ = wp.i18n.__, _x = wp.i18n._x; postboxes.add_postbox_toggles(pagenow); /* * Clear the window name. Otherwise if this is a former preview window where the user navigated to edit another post, * and the first post is still being edited, clicking Preview there will use this window to show the preview. */ window.name = ''; // Post locks: contain focus inside the dialog. If the dialog is shown, focus the first item. $('#post-lock-dialog .notification-dialog').on( 'keydown', function(e) { // Don't do anything when [Tab] is pressed. if ( e.which != 9 ) return; var target = $(e.target); // [Shift] + [Tab] on first tab cycles back to last tab. if ( target.hasClass('wp-tab-first') && e.shiftKey ) { $(this).find('.wp-tab-last').trigger( 'focus' ); e.preventDefault(); // [Tab] on last tab cycles back to first tab. } else if ( target.hasClass('wp-tab-last') && ! e.shiftKey ) { $(this).find('.wp-tab-first').trigger( 'focus' ); e.preventDefault(); } }).filter(':visible').find('.wp-tab-first').trigger( 'focus' ); // Set the heartbeat interval to 10 seconds if post lock dialogs are enabled. if ( wp.heartbeat && $('#post-lock-dialog').length ) { wp.heartbeat.interval( 10 ); } // The form is being submitted by the user. $submitButtons = $submitpost.find( ':submit, a.submitdelete, #post-preview' ).on( 'click.edit-post', function( event ) { var $button = $(this); if ( $button.hasClass('disabled') ) { event.preventDefault(); return; } if ( $button.hasClass('submitdelete') || $button.is( '#post-preview' ) ) { return; } // The form submission can be blocked from JS or by using HTML 5.0 validation on some fields. // Run this only on an actual 'submit'. $('form#post').off( 'submit.edit-post' ).on( 'submit.edit-post', function( event ) { if ( event.isDefaultPrevented() ) { return; } // Stop auto save. if ( wp.autosave ) { wp.autosave.server.suspend(); } if ( typeof commentReply !== 'undefined' ) { /* * Warn the user they have an unsaved comment before submitting * the post data for update. */ if ( ! commentReply.discardCommentChanges() ) { return false; } /* * Close the comment edit/reply form if open to stop the form * action from interfering with the post's form action. */ commentReply.close(); } releaseLock = false; $(window).off( 'beforeunload.edit-post' ); $submitButtons.addClass( 'disabled' ); if ( $button.attr('id') === 'publish' ) { $submitpost.find( '#major-publishing-actions .spinner' ).addClass( 'is-active' ); } else { $submitpost.find( '#minor-publishing .spinner' ).addClass( 'is-active' ); } }); }); // Submit the form saving a draft or an autosave, and show a preview in a new tab. $('#post-preview').on( 'click.post-preview', function( event ) { var $this = $(this), $form = $('form#post'), $previewField = $('input#wp-preview'), target = $this.attr('target') || 'wp-preview', ua = navigator.userAgent.toLowerCase(); event.preventDefault(); if ( $this.hasClass('disabled') ) { return; } if ( wp.autosave ) { wp.autosave.server.tempBlockSave(); } $previewField.val('dopreview'); $form.attr( 'target', target ).trigger( 'submit' ).attr( 'target', '' ); // Workaround for WebKit bug preventing a form submitting twice to the same action. // https://bugs.webkit.org/show_bug.cgi?id=28633 if ( ua.indexOf('safari') !== -1 && ua.indexOf('chrome') === -1 ) { $form.attr( 'action', function( index, value ) { return value + '?t=' + ( new Date() ).getTime(); }); } $previewField.val(''); }); // Auto save new posts after a title is typed. if ( $( '#auto_draft' ).val() ) { $( '#title' ).on( 'blur', function() { var cancel; if ( ! this.value || $('#edit-slug-box > *').length ) { return; } // Cancel the auto save when the blur was triggered by the user submitting the form. $('form#post').one( 'submit', function() { cancel = true; }); window.setTimeout( function() { if ( ! cancel && wp.autosave ) { wp.autosave.server.triggerSave(); } }, 200 ); }); } $document.on( 'autosave-disable-buttons.edit-post', function() { $submitButtons.addClass( 'disabled' ); }).on( 'autosave-enable-buttons.edit-post', function() { if ( ! wp.heartbeat || ! wp.heartbeat.hasConnectionError() ) { $submitButtons.removeClass( 'disabled' ); } }).on( 'before-autosave.edit-post', function() { $( '.autosave-message' ).text( __( 'Saving Draft…' ) ); }).on( 'after-autosave.edit-post', function( event, data ) { $( '.autosave-message' ).text( data.message ); if ( $( document.body ).hasClass( 'post-new-php' ) ) { $( '.submitbox .submitdelete' ).show(); } }); /* * When the user is trying to load another page, or reloads current page * show a confirmation dialog when there are unsaved changes. */ $( window ).on( 'beforeunload.edit-post', function( event ) { var editor = window.tinymce && window.tinymce.get( 'content' ); var changed = false; if ( wp.autosave ) { changed = wp.autosave.server.postChanged(); } else if ( editor ) { changed = ( ! editor.isHidden() && editor.isDirty() ); } if ( changed ) { event.preventDefault(); // The return string is needed for browser compat. // See https://developer.mozilla.org/en-US/docs/Web/API/Window/beforeunload_event. return __( 'The changes you made will be lost if you navigate away from this page.' ); } }).on( 'pagehide.edit-post', function( event ) { if ( ! releaseLock ) { return; } /* * Unload is triggered (by hand) on removing the Thickbox iframe. * Make sure we process only the main document unload. */ if ( event.target && event.target.nodeName != '#document' ) { return; } var postID = $('#post_ID').val(); var postLock = $('#active_post_lock').val(); if ( ! postID || ! postLock ) { return; } var data = { action: 'wp-remove-post-lock', _wpnonce: $('#_wpnonce').val(), post_ID: postID, active_post_lock: postLock }; if ( window.FormData && window.navigator.sendBeacon ) { var formData = new window.FormData(); $.each( data, function( key, value ) { formData.append( key, value ); }); if ( window.navigator.sendBeacon( ajaxurl, formData ) ) { return; } } // Fall back to a synchronous POST request. // See https://developer.mozilla.org/en-US/docs/Web/API/Navigator/sendBeacon $.post({ async: false, data: data, url: ajaxurl }); }); // Multiple taxonomies. if ( $('#tagsdiv-post_tag').length ) { window.tagBox && window.tagBox.init(); } else { $('.meta-box-sortables').children('div.postbox').each(function(){ if ( this.id.indexOf('tagsdiv-') === 0 ) { window.tagBox && window.tagBox.init(); return false; } }); } // Handle categories. $('.categorydiv').each( function(){ var this_id = $(this).attr('id'), catAddBefore, catAddAfter, taxonomyParts, taxonomy, settingName; taxonomyParts = this_id.split('-'); taxonomyParts.shift(); taxonomy = taxonomyParts.join('-'); settingName = taxonomy + '_tab'; if ( taxonomy == 'category' ) { settingName = 'cats'; } // @todo Move to jQuery 1.3+, support for multiple hierarchical taxonomies, see wp-lists.js. $('a', '#' + taxonomy + '-tabs').on( 'click', function( e ) { e.preventDefault(); var t = $(this).attr('href'); $(this).parent().addClass('tabs').siblings('li').removeClass('tabs'); $('#' + taxonomy + '-tabs').siblings('.tabs-panel').hide(); $(t).show(); if ( '#' + taxonomy + '-all' == t ) { deleteUserSetting( settingName ); } else { setUserSetting( settingName, 'pop' ); } }); if ( getUserSetting( settingName ) ) $('a[href="#' + taxonomy + '-pop"]', '#' + taxonomy + '-tabs').trigger( 'click' ); // Add category button controls. $('#new' + taxonomy).one( 'focus', function() { $( this ).val( '' ).removeClass( 'form-input-tip' ); }); // On [Enter] submit the taxonomy. $('#new' + taxonomy).on( 'keypress', function(event){ if( 13 === event.keyCode ) { event.preventDefault(); $('#' + taxonomy + '-add-submit').trigger( 'click' ); } }); // After submitting a new taxonomy, re-focus the input field. $('#' + taxonomy + '-add-submit').on( 'click', function() { $('#new' + taxonomy).trigger( 'focus' ); }); /** * Before adding a new taxonomy, disable submit button. * * @param {Object} s Taxonomy object which will be added. * * @return {Object} */ catAddBefore = function( s ) { if ( !$('#new'+taxonomy).val() ) { return false; } s.data += '&' + $( ':checked', '#'+taxonomy+'checklist' ).serialize(); $( '#' + taxonomy + '-add-submit' ).prop( 'disabled', true ); return s; }; /** * Re-enable submit button after a taxonomy has been added. * * Re-enable submit button. * If the taxonomy has a parent place the taxonomy underneath the parent. * * @param {Object} r Response. * @param {Object} s Taxonomy data. * * @return {void} */ catAddAfter = function( r, s ) { var sup, drop = $('#new'+taxonomy+'_parent'); $( '#' + taxonomy + '-add-submit' ).prop( 'disabled', false ); if ( 'undefined' != s.parsed.responses[0] && (sup = s.parsed.responses[0].supplemental.newcat_parent) ) { drop.before(sup); drop.remove(); } }; $('#' + taxonomy + 'checklist').wpList({ alt: '', response: taxonomy + '-ajax-response', addBefore: catAddBefore, addAfter: catAddAfter }); // Add new taxonomy button toggles input form visibility. $('#' + taxonomy + '-add-toggle').on( 'click', function( e ) { e.preventDefault(); $('#' + taxonomy + '-adder').toggleClass( 'wp-hidden-children' ); $('a[href="#' + taxonomy + '-all"]', '#' + taxonomy + '-tabs').trigger( 'click' ); $('#new'+taxonomy).trigger( 'focus' ); }); // Sync checked items between "All {taxonomy}" and "Most used" lists. $('#' + taxonomy + 'checklist, #' + taxonomy + 'checklist-pop').on( 'click', 'li.popular-category > label input[type="checkbox"]', function() { var t = $(this), c = t.is(':checked'), id = t.val(); if ( id && t.parents('#taxonomy-'+taxonomy).length ) { // Fixed for ticket #62504. See https://core.trac.wordpress.org/ticket/62504. $('input#in-' + taxonomy + '-' + id + ', input[id^="in-' + taxonomy + '-' + id + '-"]').prop('checked', c); $('input#in-popular-' + taxonomy + '-' + id).prop('checked', c); } } ); }); // End cats. // Custom Fields postbox. if ( $('#postcustom').length ) { $( '#the-list' ).wpList( { /** * Add current post_ID to request to fetch custom fields * * @ignore * * @param {Object} s Request object. * * @return {Object} Data modified with post_ID attached. */ addBefore: function( s ) { s.data += '&post_id=' + $('#post_ID').val(); return s; }, /** * Show the listing of custom fields after fetching. * * @ignore */ addAfter: function() { $('table#list-table').show(); } }); } /* * Publish Post box (#submitdiv) */ if ( $('#submitdiv').length ) { stamp = $('#timestamp').html(); visibility = $('#post-visibility-display').html(); /** * When the visibility of a post changes sub-options should be shown or hidden. * * @ignore * * @return {void} */ updateVisibility = function() { // Show sticky for public posts. if ( $postVisibilitySelect.find('input:radio:checked').val() != 'public' ) { $('#sticky').prop('checked', false); $('#sticky-span').hide(); } else { $('#sticky-span').show(); } // Show password input field for password protected post. if ( $postVisibilitySelect.find('input:radio:checked').val() != 'password' ) { $('#password-span').hide(); } else { $('#password-span').show(); } }; /** * Make sure all labels represent the current settings. * * @ignore * * @return {boolean} False when an invalid timestamp has been selected, otherwise True. */ updateText = function() { if ( ! $timestampdiv.length ) return true; var attemptedDate, originalDate, currentDate, publishOn, postStatus = $('#post_status'), optPublish = $('option[value="publish"]', postStatus), aa = $('#aa').val(), mm = $('#mm').val(), jj = $('#jj').val(), hh = $('#hh').val(), mn = $('#mn').val(); attemptedDate = new Date( aa, mm - 1, jj, hh, mn ); originalDate = new Date( $('#hidden_aa').val(), $('#hidden_mm').val() -1, $('#hidden_jj').val(), $('#hidden_hh').val(), $('#hidden_mn').val() ); currentDate = new Date( $('#cur_aa').val(), $('#cur_mm').val() -1, $('#cur_jj').val(), $('#cur_hh').val(), $('#cur_mn').val() ); // Catch unexpected date problems. if ( attemptedDate.getFullYear() != aa || (1 + attemptedDate.getMonth()) != mm || attemptedDate.getDate() != jj || attemptedDate.getMinutes() != mn ) { $timestampdiv.find('.timestamp-wrap').addClass('form-invalid'); return false; } else { $timestampdiv.find('.timestamp-wrap').removeClass('form-invalid'); } // Determine what the publish should be depending on the date and post status. if ( attemptedDate > currentDate ) { publishOn = __( 'Schedule for:' ); $('#publish').val( _x( 'Schedule', 'post action/button label' ) ); } else if ( attemptedDate <= currentDate && $('#original_post_status').val() != 'publish' ) { publishOn = __( 'Publish on:' ); $('#publish').val( __( 'Publish' ) ); } else { publishOn = __( 'Published on:' ); $('#publish').val( __( 'Update' ) ); } // If the date is the same, set it to trigger update events. if ( originalDate.toUTCString() == attemptedDate.toUTCString() ) { // Re-set to the current value. $('#timestamp').html(stamp); } else { $('#timestamp').html( '\n' + publishOn + ' ' + // translators: 1: Month, 2: Day, 3: Year, 4: Hour, 5: Minute. __( '%1$s %2$s, %3$s at %4$s:%5$s' ) .replace( '%1$s', $( 'option[value="' + mm + '"]', '#mm' ).attr( 'data-text' ) ) .replace( '%2$s', parseInt( jj, 10 ) ) .replace( '%3$s', aa ) .replace( '%4$s', ( '00' + hh ).slice( -2 ) ) .replace( '%5$s', ( '00' + mn ).slice( -2 ) ) + ' ' ); } // Add "privately published" to post status when applies. if ( $postVisibilitySelect.find('input:radio:checked').val() == 'private' ) { $('#publish').val( __( 'Update' ) ); if ( 0 === optPublish.length ) { postStatus.append(''); } else { optPublish.html( __( 'Privately Published' ) ); } $('option[value="publish"]', postStatus).prop('selected', true); $('#misc-publishing-actions .edit-post-status').hide(); } else { if ( $('#original_post_status').val() == 'future' || $('#original_post_status').val() == 'draft' ) { if ( optPublish.length ) { optPublish.remove(); postStatus.val($('#hidden_post_status').val()); } } else { optPublish.html( __( 'Published' ) ); } if ( postStatus.is(':hidden') ) $('#misc-publishing-actions .edit-post-status').show(); } // Update "Status:" to currently selected status. $('#post-status-display').text( // Remove any potential tags from post status text. wp.sanitize.stripTagsAndEncodeText( $('option:selected', postStatus).text() ) ); // Show or hide the "Save Draft" button. if ( $('option:selected', postStatus).val() == 'private' || $('option:selected', postStatus).val() == 'publish' ) { $('#save-post').hide(); } else { $('#save-post').show(); if ( $('option:selected', postStatus).val() == 'pending' ) { $('#save-post').show().val( __( 'Save as Pending' ) ); } else { $('#save-post').show().val( __( 'Save Draft' ) ); } } return true; }; // Show the visibility options and hide the toggle button when opened. $( '#visibility .edit-visibility').on( 'click', function( e ) { e.preventDefault(); if ( $postVisibilitySelect.is(':hidden') ) { updateVisibility(); $postVisibilitySelect.slideDown( 'fast', function() { $postVisibilitySelect.find( 'input[type="radio"]' ).first().trigger( 'focus' ); } ); $(this).hide(); } }); // Cancel visibility selection area and hide it from view. $postVisibilitySelect.find('.cancel-post-visibility').on( 'click', function( event ) { $postVisibilitySelect.slideUp('fast'); $('#visibility-radio-' + $('#hidden-post-visibility').val()).prop('checked', true); $('#post_password').val($('#hidden-post-password').val()); $('#sticky').prop('checked', $('#hidden-post-sticky').prop('checked')); $('#post-visibility-display').html(visibility); $('#visibility .edit-visibility').show().trigger( 'focus' ); updateText(); event.preventDefault(); }); // Set the selected visibility as current. $postVisibilitySelect.find('.save-post-visibility').on( 'click', function( event ) { // Crazyhorse branch - multiple OK cancels. var visibilityLabel = '', selectedVisibility = $postVisibilitySelect.find('input:radio:checked').val(); $postVisibilitySelect.slideUp('fast'); $('#visibility .edit-visibility').show().trigger( 'focus' ); updateText(); if ( 'public' !== selectedVisibility ) { $('#sticky').prop('checked', false); } switch ( selectedVisibility ) { case 'public': visibilityLabel = $( '#sticky' ).prop( 'checked' ) ? __( 'Public, Sticky' ) : __( 'Public' ); break; case 'private': visibilityLabel = __( 'Private' ); break; case 'password': visibilityLabel = __( 'Password Protected' ); break; } $('#post-visibility-display').text( visibilityLabel ); event.preventDefault(); }); // When the selection changes, update labels. $postVisibilitySelect.find('input:radio').on( 'change', function() { updateVisibility(); }); // Edit publish time click. $timestampdiv.siblings('a.edit-timestamp').on( 'click', function( event ) { if ( $timestampdiv.is( ':hidden' ) ) { $timestampdiv.slideDown( 'fast', function() { $( 'input, select', $timestampdiv.find( '.timestamp-wrap' ) ).first().trigger( 'focus' ); } ); $(this).hide(); } event.preventDefault(); }); // Cancel editing the publish time and hide the settings. $timestampdiv.find('.cancel-timestamp').on( 'click', function( event ) { $timestampdiv.slideUp('fast').siblings('a.edit-timestamp').show().trigger( 'focus' ); $('#mm').val($('#hidden_mm').val()); $('#jj').val($('#hidden_jj').val()); $('#aa').val($('#hidden_aa').val()); $('#hh').val($('#hidden_hh').val()); $('#mn').val($('#hidden_mn').val()); updateText(); event.preventDefault(); }); // Save the changed timestamp. $timestampdiv.find('.save-timestamp').on( 'click', function( event ) { // Crazyhorse branch - multiple OK cancels. if ( updateText() ) { $timestampdiv.slideUp('fast'); $timestampdiv.siblings('a.edit-timestamp').show().trigger( 'focus' ); } event.preventDefault(); }); // Cancel submit when an invalid timestamp has been selected. $('#post').on( 'submit', function( event ) { if ( ! updateText() ) { event.preventDefault(); $timestampdiv.show(); if ( wp.autosave ) { wp.autosave.enableButtons(); } $( '#publishing-action .spinner' ).removeClass( 'is-active' ); } }); // Post Status edit click. $postStatusSelect.siblings('a.edit-post-status').on( 'click', function( event ) { if ( $postStatusSelect.is( ':hidden' ) ) { $postStatusSelect.slideDown( 'fast', function() { $postStatusSelect.find('select').trigger( 'focus' ); } ); $(this).hide(); } event.preventDefault(); }); // Save the Post Status changes and hide the options. $postStatusSelect.find('.save-post-status').on( 'click', function( event ) { $postStatusSelect.slideUp( 'fast' ).siblings( 'a.edit-post-status' ).show().trigger( 'focus' ); updateText(); event.preventDefault(); }); // Cancel Post Status editing and hide the options. $postStatusSelect.find('.cancel-post-status').on( 'click', function( event ) { $postStatusSelect.slideUp( 'fast' ).siblings( 'a.edit-post-status' ).show().trigger( 'focus' ); $('#post_status').val( $('#hidden_post_status').val() ); updateText(); event.preventDefault(); }); } /** * Handle the editing of the post_name. Create the required HTML elements and * update the changes via Ajax. * * @global * * @return {void} */ function editPermalink() { var i, slug_value, slug_label, $el, revert_e, c = 0, real_slug = $('#post_name'), revert_slug = real_slug.val(), permalink = $( '#sample-permalink' ), permalinkOrig = permalink.html(), permalinkInner = $( '#sample-permalink a' ).html(), buttons = $('#edit-slug-buttons'), buttonsOrig = buttons.html(), full = $('#editable-post-name-full'); // Deal with Twemoji in the post-name. full.find( 'img' ).replaceWith( function() { return this.alt; } ); full = full.html(); permalink.html( permalinkInner ); // Save current content to revert to when cancelling. $el = $( '#editable-post-name' ); revert_e = $el.html(); buttons.html( ' ' + '' ); // Save permalink changes. buttons.children( '.save' ).on( 'click', function() { var new_slug = $el.children( 'input' ).val(); if ( new_slug == $('#editable-post-name-full').text() ) { buttons.children('.cancel').trigger( 'click' ); return; } $.post( ajaxurl, { action: 'sample-permalink', post_id: postId, new_slug: new_slug, new_title: $('#title').val(), samplepermalinknonce: $('#samplepermalinknonce').val() }, function(data) { var box = $('#edit-slug-box'); box.html(data); if (box.hasClass('hidden')) { box.fadeIn('fast', function () { box.removeClass('hidden'); }); } buttons.html(buttonsOrig); permalink.html(permalinkOrig); real_slug.val(new_slug); $( '.edit-slug' ).trigger( 'focus' ); wp.a11y.speak( __( 'Permalink saved' ) ); } ); }); // Cancel editing of permalink. buttons.children( '.cancel' ).on( 'click', function() { $('#view-post-btn').show(); $el.html(revert_e); buttons.html(buttonsOrig); permalink.html(permalinkOrig); real_slug.val(revert_slug); $( '.edit-slug' ).trigger( 'focus' ); }); // If more than 1/4th of 'full' is '%', make it empty. for ( i = 0; i < full.length; ++i ) { if ( '%' == full.charAt(i) ) c++; } slug_value = ( c > full.length / 4 ) ? '' : full; slug_label = __( 'URL Slug' ); $el.html( '' + '' ).children( 'input' ).on( 'keydown', function( e ) { var key = e.which; // On [Enter], just save the new slug, don't save the post. if ( 13 === key ) { e.preventDefault(); buttons.children( '.save' ).trigger( 'click' ); } // On [Esc] cancel the editing. if ( 27 === key ) { buttons.children( '.cancel' ).trigger( 'click' ); } } ).on( 'keyup', function() { real_slug.val( this.value ); }).trigger( 'focus' ); } $( '#titlediv' ).on( 'click', '.edit-slug', function() { editPermalink(); }); /** * Adds screen reader text to the title label when needed. * * Use the 'screen-reader-text' class to emulate a placeholder attribute * and hide the label when entering a value. * * @param {string} id Optional. HTML ID to add the screen reader helper text to. * * @global * * @return {void} */ window.wptitlehint = function( id ) { id = id || 'title'; var title = $( '#' + id ), titleprompt = $( '#' + id + '-prompt-text' ); if ( '' === title.val() ) { titleprompt.removeClass( 'screen-reader-text' ); } title.on( 'input', function() { if ( '' === this.value ) { titleprompt.removeClass( 'screen-reader-text' ); return; } titleprompt.addClass( 'screen-reader-text' ); } ); }; wptitlehint(); // Resize the WYSIWYG and plain text editors. ( function() { var editor, offset, mce, $handle = $('#post-status-info'), $postdivrich = $('#postdivrich'); // If there are no textareas or we are on a touch device, we can't do anything. if ( ! $textarea.length || 'ontouchstart' in window ) { // Hide the resize handle. $('#content-resize-handle').hide(); return; } /** * Handle drag event. * * @param {Object} event Event containing details about the drag. */ function dragging( event ) { if ( $postdivrich.hasClass( 'wp-editor-expand' ) ) { return; } if ( mce ) { editor.theme.resizeTo( null, offset + event.pageY ); } else { $textarea.height( Math.max( 50, offset + event.pageY ) ); } event.preventDefault(); } /** * When the dragging stopped make sure we return focus and do a confidence check on the height. */ function endDrag() { var height, toolbarHeight; if ( $postdivrich.hasClass( 'wp-editor-expand' ) ) { return; } if ( mce ) { editor.focus(); toolbarHeight = parseInt( $( '#wp-content-editor-container .mce-toolbar-grp' ).height(), 10 ); if ( toolbarHeight < 10 || toolbarHeight > 200 ) { toolbarHeight = 30; } height = parseInt( $('#content_ifr').css('height'), 10 ) + toolbarHeight - 28; } else { $textarea.trigger( 'focus' ); height = parseInt( $textarea.css('height'), 10 ); } $document.off( '.wp-editor-resize' ); // Confidence check: normalize height to stay within acceptable ranges. if ( height && height > 50 && height < 5000 ) { setUserSetting( 'ed_size', height ); } } $handle.on( 'mousedown.wp-editor-resize', function( event ) { if ( typeof tinymce !== 'undefined' ) { editor = tinymce.get('content'); } if ( editor && ! editor.isHidden() ) { mce = true; offset = $('#content_ifr').height() - event.pageY; } else { mce = false; offset = $textarea.height() - event.pageY; $textarea.trigger( 'blur' ); } $document.on( 'mousemove.wp-editor-resize', dragging ) .on( 'mouseup.wp-editor-resize mouseleave.wp-editor-resize', endDrag ); event.preventDefault(); }).on( 'mouseup.wp-editor-resize', endDrag ); })(); // TinyMCE specific handling of Post Format changes to reflect in the editor. if ( typeof tinymce !== 'undefined' ) { // When changing post formats, change the editor body class. $( '#post-formats-select input.post-format' ).on( 'change.set-editor-class', function() { var editor, body, format = this.id; if ( format && $( this ).prop( 'checked' ) && ( editor = tinymce.get( 'content' ) ) ) { body = editor.getBody(); body.className = body.className.replace( /\bpost-format-[^ ]+/, '' ); editor.dom.addClass( body, format == 'post-format-0' ? 'post-format-standard' : format ); $( document ).trigger( 'editor-classchange' ); } }); // When changing page template, change the editor body class. $( '#page_template' ).on( 'change.set-editor-class', function() { var editor, body, pageTemplate = $( this ).val() || ''; pageTemplate = pageTemplate.substr( pageTemplate.lastIndexOf( '/' ) + 1, pageTemplate.length ) .replace( /\.php$/, '' ) .replace( /\./g, '-' ); if ( pageTemplate && ( editor = tinymce.get( 'content' ) ) ) { body = editor.getBody(); body.className = body.className.replace( /\bpage-template-[^ ]+/, '' ); editor.dom.addClass( body, 'page-template-' + pageTemplate ); $( document ).trigger( 'editor-classchange' ); } }); } // Save on pressing [Ctrl]/[Command] + [S] in the Text editor. $textarea.on( 'keydown.wp-autosave', function( event ) { // Key [S] has code 83. if ( event.which === 83 ) { if ( event.shiftKey || event.altKey || ( isMac && ( ! event.metaKey || event.ctrlKey ) ) || ( ! isMac && ! event.ctrlKey ) ) { return; } wp.autosave && wp.autosave.server.triggerSave(); event.preventDefault(); } }); // If the last status was auto-draft and the save is triggered, edit the current URL. if ( $( '#original_post_status' ).val() === 'auto-draft' && window.history.replaceState ) { var location; $( '#publish' ).on( 'click', function() { location = window.location.href; location += ( location.indexOf( '?' ) !== -1 ) ? '&' : '?'; location += 'wp-post-new-reload=true'; window.history.replaceState( null, null, location ); }); } /** * Copies the attachment URL in the Edit Media page to the clipboard. * * @since 5.5.0 * * @param {MouseEvent} event A click event. * * @return {void} */ copyAttachmentURLClipboard.on( 'success', function( event ) { var triggerElement = $( event.trigger ), successElement = $( '.success', triggerElement.closest( '.copy-to-clipboard-container' ) ); // Clear the selection and move focus back to the trigger. event.clearSelection(); // Show success visual feedback. clearTimeout( copyAttachmentURLSuccessTimeout ); successElement.removeClass( 'hidden' ); // Hide success visual feedback after 3 seconds since last success. copyAttachmentURLSuccessTimeout = setTimeout( function() { successElement.addClass( 'hidden' ); }, 3000 ); // Handle success audible feedback. wp.a11y.speak( __( 'The file URL has been copied to your clipboard' ) ); } ); } ); /** * TinyMCE word count display */ ( function( $, counter ) { $( function() { var $content = $( '#content' ), $count = $( '#wp-word-count' ).find( '.word-count' ), prevCount = 0, contentEditor; /** * Get the word count from TinyMCE and display it */ function update() { var text, count; if ( ! contentEditor || contentEditor.isHidden() ) { text = $content.val(); } else { text = contentEditor.getContent( { format: 'raw' } ); } count = counter.count( text ); if ( count !== prevCount ) { $count.text( count ); } prevCount = count; } /** * Bind the word count update triggers. * * When a node change in the main TinyMCE editor has been triggered. * When a key has been released in the plain text content editor. */ $( document ).on( 'tinymce-editor-init', function( event, editor ) { if ( editor.id !== 'content' ) { return; } contentEditor = editor; editor.on( 'nodechange keyup', _.debounce( update, 1000 ) ); } ); $content.on( 'input keyup', _.debounce( update, 1000 ) ); update(); } ); } )( jQuery, new wp.utils.WordCounter() );

The Mathematics Behind Megaways Slots: Redefining Risk and Reward

Megaways slots represent a bold evolution in video slot design, seamlessly blending advanced probability with engaging gameplay to deliver a uniquely thrilling experience. At their core, these slots transform traditional chance mechanics through innovative features—most notably sticky wilds—that reshape how players perceive risk and reward. Unlike standard slot machines, where outcomes are fixed and outcomes predictable, Megaways introduces dynamic elements that amplify both volatility and the sense of personal momentum.

Why Video Slots Dominate Modern Gambling Culture

Video slots are now the cornerstone of global casino gaming, captivating players with their fusion of visual storytelling and chance. Their popularity stems from accessibility, immersive graphics, and intelligent design features that sustain engagement across sessions. Megaways slots exemplify this trend, leveraging cutting-edge technology to turn probability into visceral excitement. As players spin reels, the anticipation is no longer passive—it’s a story unfolding in real time, where every line formed carries the weight of possibility.

The Sticky Wild Mechanism: A Catalyst for Unforeseen Outcomes

Central to Megaways’ appeal is its signature sticky wild feature. Unlike conventional wilds that vanish after a single spin, Megaways’ wilds remain anchored on the reel until activated. This persistence extends their influence across multiple spins, dramatically increasing the chance of forming winning combinations. The result? Small, seemingly improbable wins multiply into moments of genuine astonishment—turning routine spins into memorable wins that feel almost supernatural.

From Theory to Thrill: How Probability Fuels the Wow Factor

Traditional slots follow well-defined return-to-player (RTP) ratios, offering players a clear, predictable baseline. Megaways disrupts this model through layered volatility, where stochastic elements like sticky wilds introduce unpredictable surges of high-value outcomes. This dynamic shifts the player experience from passive calculation to active, emotional engagement. Each spin becomes less about numerical odds and more about suspense—where probability evolves into personal wonder, and chance becomes a narrative of tension and triumph.

Feature Traditional Slots Megaways Slots
Wild persistence Instantly extinguished Remains until triggered, extending win potential
Volatility profile Steady, low-to-moderate Layered, high-volatility with rare spikes
Player experience Mechanical, predictable Immersive, emotionally charged

“Megaways doesn’t just use probability—it crafts moments where luck feels alive.”

Each spin becomes a story where chance shapes destiny, transforming abstract maths into personal victory. The sticky wild is not just a feature; it’s a narrative device, turning fleeting moments into legendary wins. For the British player accustomed to precision and storytelling, this marriage of logic and emotion marks a new era in gaming—where probability doesn’t limit wonder, it defines it.

Beyond the Screen: The Rise of Virtual Reality Video Slots

As virtual reality reshapes digital entertainment, video slots are evolving into fully immersive worlds. Megaways-style gameplay adapts seamlessly, preserving core probabilistic principles while deepening player presence. The sticky wild, once confined to 2D screens, now glides through 3D spaces, anchoring chance in a vivid, interactive environment. This fusion ensures that probability remains foundational—no longer hidden beneath flashy graphics, but a tangible force shaping the sensory journey.

Conclusion: Probability as the Foundation of Wonder

Megaways slots exemplify how video gaming has matured into a sophisticated blend of chance, technology, and narrative. By embedding sticky wilds and adaptive volatility into their design, they turn statistical odds into personal drama. For the modern British gambler, this is more than entertainment—it’s a celebration of probability reimagined, where every spin holds the potential for the extraordinary. Explore more about this evolution at fortune gems 500 casino.

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