]> scripts.mit.edu Git - autoinstalls/wordpress.git/blobdiff - wp-includes/js/autosave.js
WordPress 3.6.1-scripts
[autoinstalls/wordpress.git] / wp-includes / js / autosave.js
index 14529d9deead2ba5687d598e8aeb9558ec237455..6cd6a47fd7c7c7b24564c65920118338f1bcfab6 100644 (file)
@@ -1 +1,702 @@
-var autosave,autosaveLast="",autosavePeriodical,autosaveOldMessage="",autosaveDelayPreview=false,notSaved=true,blockSave=false,interimLogin=false;jQuery(document).ready(function(b){var a=true;autosaveLast=b("#post #title").val()+b("#post #content").val();autosavePeriodical=b.schedule({time:autosaveL10n.autosaveInterval*1000,func:function(){autosave()},repeat:true,protect:true});b("#post").submit(function(){b.cancel(autosavePeriodical)});b('input[type="submit"], a.submitdelete',"#submitpost").click(function(){blockSave=true;window.onbeforeunload=null;b(":button, :submit","#submitpost").each(function(){var c=b(this);if(c.hasClass("button-primary")){c.addClass("button-primary-disabled")}else{c.addClass("button-disabled")}});if(b(this).attr("id")=="publish"){b("#ajax-loading").css("visibility","visible")}else{b("#draft-ajax-loading").css("visibility","visible")}});window.onbeforeunload=function(){var c=typeof(tinyMCE)!="undefined"?tinyMCE.activeEditor:false,e,d;if(c&&!c.isHidden()){if(c.isDirty()){return autosaveL10n.saveAlert}}else{e=b("#post #title").val(),d=b("#post #content").val();if((e||d)&&e+d!=autosaveLast){return autosaveL10n.saveAlert}}};b("#post-preview").click(function(){if(b("#auto_draft").val()=="1"&&notSaved){autosaveDelayPreview=true;autosave();return false}doPreview();return false});doPreview=function(){b("input#wp-preview").val("dopreview");b("form#post").attr("target","wp-preview").submit().attr("target","");b("input#wp-preview").val("")};if(typeof tinyMCE!="undefined"){b("#title")[b.browser.opera?"keypress":"keydown"](function(c){if(c.which==9&&!c.shiftKey&&!c.controlKey&&!c.altKey){if((b("#auto_draft").val()=="1")&&(b("#title").val().length>0)){autosave()}if(tinyMCE.activeEditor&&!tinyMCE.activeEditor.isHidden()&&a){c.preventDefault();a=false;tinyMCE.activeEditor.focus();return false}}})}if("1"==b("#auto_draft").val()){b("#title").blur(function(){if(!this.value||b("#auto_draft").val()!="1"){return}delayed_autosave()})}});function autosave_parse_response(c){var e=wpAjax.parseAjaxResponse(c,"autosave"),f="",a,b,d;if(e&&e.responses&&e.responses.length){f=e.responses[0].data;if(e.responses[0].supplemental){b=e.responses[0].supplemental;if("disable"==b.disable_autosave){autosave=function(){};e={errors:true}}if(b.session_expired&&(d=b.session_expired)){if(!interimLogin||interimLogin.closed){interimLogin=window.open(d,"login","width=600,height=450,resizable=yes,scrollbars=yes,status=yes");interimLogin.focus()}delete b.session_expired}jQuery.each(b,function(g,h){if(g.match(/^replace-/)){jQuery("#"+g.replace("replace-","")).val(h)}})}if(!e.errors){a=parseInt(e.responses[0].id,10);if(!isNaN(a)&&a>0){autosave_update_slug(a)}}}if(f){jQuery("#autosave").html(f)}else{if(autosaveOldMessage&&e){jQuery("#autosave").html(autosaveOldMessage)}}return e}function autosave_saved(a){blockSave=false;autosave_parse_response(a);autosave_enable_buttons()}function autosave_saved_new(b){blockSave=false;var d=autosave_parse_response(b),c,a;if(d&&d.responses.length&&!d.errors){a=parseInt(d.responses[0].id,10);if(!isNaN(a)&&a>0){notSaved=false;jQuery("#auto_draft").val("0")}autosave_enable_buttons();if(autosaveDelayPreview){autosaveDelayPreview=false;doPreview()}}else{autosave_enable_buttons()}}function autosave_update_slug(a){if("undefined"!=makeSlugeditClickable&&jQuery.isFunction(makeSlugeditClickable)&&!jQuery("#edit-slug-box > *").size()){jQuery.post(ajaxurl,{action:"sample-permalink",post_id:a,new_title:jQuery("#title").val(),samplepermalinknonce:jQuery("#samplepermalinknonce").val()},function(b){jQuery("#edit-slug-box").html(b);makeSlugeditClickable()})}}function autosave_loading(){jQuery("#autosave").html(autosaveL10n.savingText)}function autosave_enable_buttons(){setTimeout(function(){jQuery(":button, :submit","#submitpost").removeAttr("disabled");jQuery(".ajax-loading").css("visibility","hidden")},500)}function autosave_disable_buttons(){jQuery(":button, :submit","#submitpost").attr("disabled","disabled");setTimeout(autosave_enable_buttons,5000)}function delayed_autosave(){setTimeout(function(){if(blockSave){return}autosave()},200)}autosave=function(){blockSave=true;var c=(typeof tinyMCE!="undefined")&&tinyMCE.activeEditor&&!tinyMCE.activeEditor.isHidden(),d,f,b,e,a;autosave_disable_buttons();d={action:"autosave",post_ID:jQuery("#post_ID").val()||0,post_title:jQuery("#title").val()||"",autosavenonce:jQuery("#autosavenonce").val(),post_type:jQuery("#post_type").val()||"",autosave:1};jQuery(".tags-input").each(function(){d[this.name]=this.value});f=true;if(jQuery("#TB_window").css("display")=="block"){f=false}if(c&&f){b=tinyMCE.activeEditor;if(b.plugins.spellchecker&&b.plugins.spellchecker.active){f=false}else{if("mce_fullscreen"==b.id){tinyMCE.get("content").setContent(b.getContent({format:"raw"}),{format:"raw"})}tinyMCE.get("content").save()}}d.content=jQuery("#content").val();if(jQuery("#post_name").val()){d.post_name=jQuery("#post_name").val()}if((d.post_title.length==0&&d.content.length==0)||d.post_title+d.content==autosaveLast){f=false}e=jQuery("#original_post_status").val();goodcats=([]);jQuery("[name='post_category[]']:checked").each(function(g){goodcats.push(this.value)});d.catslist=goodcats.join(",");if(jQuery("#comment_status").attr("checked")){d.comment_status="open"}if(jQuery("#ping_status").attr("checked")){d.ping_status="open"}if(jQuery("#excerpt").size()){d.excerpt=jQuery("#excerpt").val()}if(jQuery("#post_author").size()){d.post_author=jQuery("#post_author").val()}if(jQuery("#parent_id").val()){d.parent_id=jQuery("#parent_id").val()}d.user_ID=jQuery("#user-id").val();if(jQuery("#auto_draft").val()=="1"){d.auto_draft="1"}if(f){autosaveLast=jQuery("#title").val()+jQuery("#content").val()}else{d.autosave=0}if(d.auto_draft=="1"){a=autosave_saved_new}else{a=autosave_saved}autosaveOldMessage=jQuery("#autosave").html();jQuery.ajax({data:d,beforeSend:f?autosave_loading:null,type:"POST",url:autosaveL10n.requestFile,success:a})};
\ No newline at end of file
+var autosave, autosaveLast = '', autosavePeriodical, autosaveDelayPreview = false, notSaved = true, blockSave = false, fullscreen, autosaveLockRelease = true;
+
+jQuery(document).ready( function($) {
+
+       if ( $('#wp-content-wrap').hasClass('tmce-active') && typeof switchEditors != 'undefined' ) {
+               autosaveLast = wp.autosave.getCompareString({
+                       post_title : $('#title').val() || '',
+                       content : switchEditors.pre_wpautop( $('#content').val() ) || '',
+                       excerpt : $('#excerpt').val() || ''
+               });
+       } else {
+               autosaveLast = wp.autosave.getCompareString();
+       }
+
+       autosavePeriodical = $.schedule({time: autosaveL10n.autosaveInterval * 1000, func: function() { autosave(); }, repeat: true, protect: true});
+
+       //Disable autosave after the form has been submitted
+       $("#post").submit(function() {
+               $.cancel(autosavePeriodical);
+               autosaveLockRelease = false;
+       });
+
+       $('input[type="submit"], a.submitdelete', '#submitpost').click(function(){
+               blockSave = true;
+               window.onbeforeunload = null;
+               $(':button, :submit', '#submitpost').each(function(){
+                       var t = $(this);
+                       if ( t.hasClass('button-primary') )
+                               t.addClass('button-primary-disabled');
+                       else
+                               t.addClass('button-disabled');
+               });
+               if ( $(this).attr('id') == 'publish' )
+                       $('#major-publishing-actions .spinner').show();
+               else
+                       $('#minor-publishing .spinner').show();
+       });
+
+       window.onbeforeunload = function(){
+               var editor = typeof(tinymce) != 'undefined' ? tinymce.activeEditor : false, compareString;
+
+               if ( editor && ! editor.isHidden() ) {
+                       if ( editor.isDirty() )
+                               return autosaveL10n.saveAlert;
+               } else {
+                       if ( fullscreen && fullscreen.settings.visible ) {
+                               compareString = wp.autosave.getCompareString({
+                                       post_title: $('#wp-fullscreen-title').val() || '',
+                                       content: $('#wp_mce_fullscreen').val() || '',
+                                       excerpt: $('#excerpt').val() || ''
+                               });
+                       } else {
+                               compareString = wp.autosave.getCompareString();
+                       }
+
+                       if ( compareString != autosaveLast )
+                               return autosaveL10n.saveAlert;
+               }
+       };
+
+       $(window).unload( function(e) {
+               if ( ! autosaveLockRelease )
+                       return;
+
+               // unload fires (twice) on removing the Thickbox iframe. Make sure we process only the main document unload.
+               if ( e.target && e.target.nodeName != '#document' )
+                       return;
+
+               $.ajax({
+                       type: 'POST',
+                       url: ajaxurl,
+                       async: false,
+                       data: {
+                               action: 'wp-remove-post-lock',
+                               _wpnonce: $('#_wpnonce').val(),
+                               post_ID: $('#post_ID').val(),
+                               active_post_lock: $('#active_post_lock').val()
+                       }
+               });
+       } );
+
+       // preview
+       $('#post-preview').click(function(){
+               if ( $('#auto_draft').val() == '1' && notSaved ) {
+                       autosaveDelayPreview = true;
+                       autosave();
+                       return false;
+               }
+               doPreview();
+               return false;
+       });
+
+       doPreview = function() {
+               $('input#wp-preview').val('dopreview');
+               $('form#post').attr('target', 'wp-preview').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
+                */
+               var ua = navigator.userAgent.toLowerCase();
+               if ( ua.indexOf('safari') != -1 && ua.indexOf('chrome') == -1 ) {
+                       $('form#post').attr('action', function(index, value) {
+                               return value + '?t=' + new Date().getTime();
+                       });
+               }
+
+               $('input#wp-preview').val('');
+       }
+
+       // This code is meant to allow tabbing from Title to Post content.
+       $('#title').on('keydown.editor-focus', function(e) {
+               var ed;
+
+               if ( e.which != 9 )
+                       return;
+
+               if ( !e.ctrlKey && !e.altKey && !e.shiftKey ) {
+                       if ( typeof(tinymce) != 'undefined' )
+                               ed = tinymce.get('content');
+
+                       if ( ed && !ed.isHidden() ) {
+                               $(this).one('keyup', function(e){
+                                       $('#content_tbl td.mceToolbar > a').focus();
+                               });
+                       } else {
+                               $('#content').focus();
+                       }
+
+                       e.preventDefault();
+               }
+       });
+
+       // autosave new posts after a title is typed but not if Publish or Save Draft is clicked
+       if ( '1' == $('#auto_draft').val() ) {
+               $('#title').blur( function() {
+                       if ( !this.value || $('#auto_draft').val() != '1' )
+                               return;
+                       delayed_autosave();
+               });
+       }
+
+       // When connection is lost, keep user from submitting changes.
+       $(document).on('heartbeat-connection-lost.autosave', function( e, error ) {
+               if ( 'timeout' === error ) {
+                       var notice = $('#lost-connection-notice');
+                       if ( ! wp.autosave.local.hasStorage ) {
+                               notice.find('.hide-if-no-sessionstorage').hide();
+                       }
+                       notice.show();
+                       autosave_disable_buttons();
+               }
+       }).on('heartbeat-connection-restored.autosave', function() {
+               $('#lost-connection-notice').hide();
+               autosave_enable_buttons();
+       });
+});
+
+function autosave_parse_response( response ) {
+       var res = wpAjax.parseAjaxResponse(response, 'autosave'), post_id, sup;
+
+       if ( res && res.responses && res.responses.length ) {
+               if ( res.responses[0].supplemental ) {
+                       sup = res.responses[0].supplemental;
+
+                       jQuery.each( sup, function( selector, value ) {
+                               if ( selector.match(/^replace-/) )
+                                       jQuery( '#' + selector.replace('replace-', '') ).val( value );
+                       });
+               }
+
+               // if no errors: add slug UI and update autosave-message
+               if ( !res.errors ) {
+                       if ( post_id = parseInt( res.responses[0].id, 10 ) )
+                               autosave_update_slug( post_id );
+
+                       if ( res.responses[0].data ) // update autosave message
+                               jQuery('.autosave-message').text( res.responses[0].data );
+               }
+       }
+
+       return res;
+}
+
+// called when autosaving pre-existing post
+function autosave_saved(response) {
+       blockSave = false;
+       autosave_parse_response(response); // parse the ajax response
+       autosave_enable_buttons(); // re-enable disabled form buttons
+}
+
+// called when autosaving new post
+function autosave_saved_new(response) {
+       blockSave = false;
+       var res = autosave_parse_response(response), post_id;
+
+       if ( res && res.responses.length && !res.errors ) {
+               // An ID is sent only for real auto-saves, not for autosave=0 "keepalive" saves
+               post_id = parseInt( res.responses[0].id, 10 );
+
+               if ( post_id ) {
+                       notSaved = false;
+                       jQuery('#auto_draft').val('0'); // No longer an auto-draft
+               }
+
+               autosave_enable_buttons();
+
+               if ( autosaveDelayPreview ) {
+                       autosaveDelayPreview = false;
+                       doPreview();
+               }
+       } else {
+               autosave_enable_buttons(); // re-enable disabled form buttons
+       }
+}
+
+function autosave_update_slug(post_id) {
+       // create slug area only if not already there
+       if ( 'undefined' != makeSlugeditClickable && jQuery.isFunction(makeSlugeditClickable) && !jQuery('#edit-slug-box > *').size() ) {
+               jQuery.post( ajaxurl, {
+                               action: 'sample-permalink',
+                               post_id: post_id,
+                               new_title: fullscreen && fullscreen.settings.visible ? jQuery('#wp-fullscreen-title').val() : jQuery('#title').val(),
+                               samplepermalinknonce: jQuery('#samplepermalinknonce').val()
+                       },
+                       function(data) {
+                               if ( data !== '-1' ) {
+                                       var box = jQuery('#edit-slug-box');
+                                       box.html(data);
+                                       if (box.hasClass('hidden')) {
+                                               box.fadeIn('fast', function () {
+                                                       box.removeClass('hidden');
+                                               });
+                                       }
+                                       makeSlugeditClickable();
+                               }
+                       }
+               );
+       }
+}
+
+function autosave_loading() {
+       jQuery('.autosave-message').html(autosaveL10n.savingText);
+}
+
+function autosave_enable_buttons() {
+       jQuery(document).trigger('autosave-enable-buttons');
+       if ( ! wp.heartbeat || ! wp.heartbeat.hasConnectionError() ) {
+               // delay that a bit to avoid some rare collisions while the DOM is being updated.
+               setTimeout(function(){
+                       var parent = jQuery('#submitpost');
+                       parent.find(':button, :submit').removeAttr('disabled');
+                       parent.find('.spinner').hide();
+               }, 500);
+       }
+}
+
+function autosave_disable_buttons() {
+       jQuery(document).trigger('autosave-disable-buttons');
+       jQuery('#submitpost').find(':button, :submit').prop('disabled', true);
+       // Re-enable 5 sec later. Just gives autosave a head start to avoid collisions.
+       setTimeout( autosave_enable_buttons, 5000 );
+}
+
+function delayed_autosave() {
+       setTimeout(function(){
+               if ( blockSave )
+                       return;
+               autosave();
+       }, 200);
+}
+
+autosave = function() {
+       var post_data = wp.autosave.getPostData(),
+               compareString,
+               successCallback;
+
+       blockSave = true;
+
+       // post_data.content cannot be retrieved at the moment
+       if ( ! post_data.autosave )
+               return false;
+
+       // No autosave while thickbox is open (media buttons)
+       if ( jQuery("#TB_window").css('display') == 'block' )
+               return false;
+
+       compareString = wp.autosave.getCompareString( post_data );
+
+       // Nothing to save or no change.
+       if ( compareString == autosaveLast )
+               return false;
+
+       autosaveLast = compareString;
+       jQuery(document).triggerHandler('wpcountwords', [ post_data["content"] ]);
+
+       // Disable buttons until we know the save completed.
+       autosave_disable_buttons();
+
+       if ( post_data["auto_draft"] == '1' ) {
+               successCallback = autosave_saved_new; // new post
+       } else {
+               successCallback = autosave_saved; // pre-existing post
+       }
+
+       jQuery.ajax({
+               data: post_data,
+               beforeSend: autosave_loading,
+               type: "POST",
+               url: ajaxurl,
+               success: successCallback
+       });
+
+       return true;
+}
+
+// Autosave in localStorage
+// set as simple object/mixin for now
+window.wp = window.wp || {};
+wp.autosave = wp.autosave || {};
+
+(function($){
+// Returns the data for saving in both localStorage and autosaves to the server
+wp.autosave.getPostData = function() {
+       var ed = typeof tinymce != 'undefined' ? tinymce.activeEditor : null, post_name, parent_id, cats = [],
+               data = {
+                       action: 'autosave',
+                       autosave: true,
+                       post_id: $('#post_ID').val() || 0,
+                       autosavenonce: $('#autosavenonce').val() || '',
+                       post_type: $('#post_type').val() || '',
+                       post_author: $('#post_author').val() || '',
+                       excerpt: $('#excerpt').val() || ''
+               };
+
+       if ( ed && !ed.isHidden() ) {
+               // Don't run while the tinymce spellcheck is on. It resets all found words.
+               if ( ed.plugins.spellchecker && ed.plugins.spellchecker.active ) {
+                       data.autosave = false;
+                       return data;
+               } else {
+                       if ( 'mce_fullscreen' == ed.id )
+                               tinymce.get('content').setContent(ed.getContent({format : 'raw'}), {format : 'raw'});
+
+                       tinymce.triggerSave();
+               }
+       }
+
+       if ( typeof fullscreen != 'undefined' && fullscreen.settings.visible ) {
+               data['post_title'] = $('#wp-fullscreen-title').val() || '';
+               data['content'] = $('#wp_mce_fullscreen').val() || '';
+       } else {
+               data['post_title'] = $('#title').val() || '';
+               data['content'] = $('#content').val() || '';
+       }
+
+       /*
+       // We haven't been saving tags with autosave since 2.8... Start again?
+       $('.the-tags').each( function() {
+               data[this.name] = this.value;
+       });
+       */
+
+       $('input[id^="in-category-"]:checked').each( function() {
+               cats.push(this.value);
+       });
+       data['catslist'] = cats.join(',');
+
+       if ( post_name = $('#post_name').val() )
+               data['post_name'] = post_name;
+
+       if ( parent_id = $('#parent_id').val() )
+               data['parent_id'] = parent_id;
+
+       if ( $('#comment_status').prop('checked') )
+               data['comment_status'] = 'open';
+
+       if ( $('#ping_status').prop('checked') )
+               data['ping_status'] = 'open';
+
+       if ( $('#auto_draft').val() == '1' )
+               data['auto_draft'] = '1';
+
+       return data;
+};
+
+// Concatenate title, content and excerpt. Used to track changes when auto-saving.
+wp.autosave.getCompareString = function( post_data ) {
+       if ( typeof post_data === 'object' ) {
+               return ( post_data.post_title || '' ) + '::' + ( post_data.content || '' ) + '::' + ( post_data.excerpt || '' );
+       }
+
+       return ( $('#title').val() || '' ) + '::' + ( $('#content').val() || '' ) + '::' + ( $('#excerpt').val() || '' );
+};
+
+wp.autosave.local = {
+
+       lastSavedData: '',
+       blog_id: 0,
+       hasStorage: false,
+
+       // Check if the browser supports sessionStorage and it's not disabled
+       checkStorage: function() {
+               var test = Math.random(), result = false;
+
+               try {
+                       sessionStorage.setItem('wp-test', test);
+                       result = sessionStorage.getItem('wp-test') == test;
+                       sessionStorage.removeItem('wp-test');
+               } catch(e) {}
+
+               this.hasStorage = result;
+               return result;
+    },
+
+       /**
+        * Initialize the local storage
+        *
+        * @return mixed False if no sessionStorage in the browser or an Object containing all post_data for this blog
+        */
+       getStorage: function() {
+               var stored_obj = false;
+               // Separate local storage containers for each blog_id
+               if ( this.hasStorage && this.blog_id ) {
+                       stored_obj = sessionStorage.getItem( 'wp-autosave-' + this.blog_id );
+
+                       if ( stored_obj )
+                               stored_obj = JSON.parse( stored_obj );
+                       else
+                               stored_obj = {};
+               }
+
+               return stored_obj;
+       },
+
+       /**
+        * Set the storage for this blog
+        *
+        * Confirms that the data was saved successfully.
+        *
+        * @return bool
+        */
+       setStorage: function( stored_obj ) {
+               var key;
+
+               if ( this.hasStorage && this.blog_id ) {
+                       key = 'wp-autosave-' + this.blog_id;
+                       sessionStorage.setItem( key, JSON.stringify( stored_obj ) );
+                       return sessionStorage.getItem( key ) !== null;
+               }
+
+               return false;
+       },
+
+       /**
+        * Get the saved post data for the current post
+        *
+        * @return mixed False if no storage or no data or the post_data as an Object
+        */
+       getData: function() {
+               var stored = this.getStorage(), post_id = $('#post_ID').val();
+
+               if ( !stored || !post_id )
+                       return false;
+
+               return stored[ 'post_' + post_id ] || false;
+       },
+
+       /**
+        * Set (save or delete) post data in the storage.
+        *
+        * If stored_data evaluates to 'false' the storage key for the current post will be removed
+        *
+        * $param stored_data The post data to store or null/false/empty to delete the key
+        * @return bool
+        */
+       setData: function( stored_data ) {
+               var stored = this.getStorage(), post_id = $('#post_ID').val();
+
+               if ( !stored || !post_id )
+                       return false;
+
+               if ( stored_data )
+                       stored[ 'post_' + post_id ] = stored_data;
+               else if ( stored.hasOwnProperty( 'post_' + post_id ) )
+                       delete stored[ 'post_' + post_id ];
+               else
+                       return false;
+
+               return this.setStorage(stored);
+       },
+
+       /**
+        * Save post data for the current post
+        *
+        * Runs on a 15 sec. schedule, saves when there are differences in the post title or content.
+        * When the optional data is provided, updates the last saved post data.
+        *
+        * $param data optional Object The post data for saving, minimum 'post_title' and 'content'
+        * @return bool
+        */
+       save: function( data ) {
+               var result = false, post_data, compareString;
+
+               if ( ! data ) {
+                       post_data = wp.autosave.getPostData();
+               } else {
+                       post_data = this.getData() || {};
+                       $.extend( post_data, data );
+                       post_data.autosave = true;
+               }
+
+               // Cannot get the post data at the moment
+               if ( ! post_data.autosave )
+                       return false;
+
+               compareString = wp.autosave.getCompareString( post_data );
+
+               // If the content, title and excerpt did not change since the last save, don't save again
+               if ( compareString == this.lastSavedData )
+                       return false;
+
+               post_data['save_time'] = (new Date()).getTime();
+               post_data['status'] = $('#post_status').val() || '';
+               result = this.setData( post_data );
+
+               if ( result )
+                       this.lastSavedData = compareString;
+
+               return result;
+       },
+
+       // Initialize and run checkPost() on loading the script (before TinyMCE init)
+       init: function( settings ) {
+               var self = this;
+
+               // Check if the browser supports sessionStorage and it's not disabled
+               if ( ! this.checkStorage() )
+                       return;
+
+               // Don't run if the post type supports neither 'editor' (textarea#content) nor 'excerpt'.
+               if ( ! $('#content').length && ! $('#excerpt').length )
+                       return;
+
+               if ( settings )
+                       $.extend( this, settings );
+
+               if ( !this.blog_id )
+                       this.blog_id = typeof window.autosaveL10n != 'undefined' ? window.autosaveL10n.blog_id : 0;
+
+               $(document).ready( function(){ self.run(); } );
+       },
+
+       // Run on DOM ready
+       run: function() {
+               var self = this;
+
+               // Check if the local post data is different than the loaded post data.
+               this.checkPost();
+
+               // Set the schedule
+               this.schedule = $.schedule({
+                       time: 15 * 1000,
+                       func: function() { wp.autosave.local.save(); },
+                       repeat: true,
+                       protect: true
+               });
+
+               $('form#post').on('submit.autosave-local', function() {
+                       var editor = typeof tinymce != 'undefined' && tinymce.get('content'), post_id = $('#post_ID').val() || 0;
+
+                       if ( editor && ! editor.isHidden() ) {
+                               // Last onSubmit event in the editor, needs to run after the content has been moved to the textarea.
+                               editor.onSubmit.add( function() {
+                                       wp.autosave.local.save({
+                                               post_title: $('#title').val() || '',
+                                               content: $('#content').val() || '',
+                                               excerpt: $('#excerpt').val() || ''
+                                       });
+                               });
+                       } else {
+                               self.save({
+                                       post_title: $('#title').val() || '',
+                                       content: $('#content').val() || '',
+                                       excerpt: $('#excerpt').val() || ''
+                               });
+                       }
+
+                       wpCookies.set( 'wp-saving-post-' + post_id, 'check' );
+               });
+       },
+
+       // Strip whitespace and compare two strings
+       compare: function( str1, str2 ) {
+               function remove( string ) {
+                       return string.toString().replace(/[\x20\t\r\n\f]+/g, '');
+               }
+
+               return ( remove( str1 || '' ) == remove( str2 || '' ) );
+       },
+
+       /**
+        * Check if the saved data for the current post (if any) is different than the loaded post data on the screen
+        *
+        * Shows a standard message letting the user restore the post data if different.
+        *
+        * @return void
+        */
+       checkPost: function() {
+               var self = this, post_data = this.getData(), content, post_title, excerpt, notice,
+                       post_id = $('#post_ID').val() || 0, cookie = wpCookies.get( 'wp-saving-post-' + post_id );
+
+               if ( ! post_data )
+                       return;
+
+               if ( cookie ) {
+                       wpCookies.remove( 'wp-saving-post-' + post_id );
+
+                       if ( cookie == 'saved' ) {
+                               // The post was saved properly, remove old data and bail
+                               this.setData( false );
+                               return;
+                       }
+               }
+
+               // There is a newer autosave. Don't show two "restore" notices at the same time.
+               if ( $('#has-newer-autosave').length )
+                       return;
+
+               content = $('#content').val() || '';
+               post_title = $('#title').val() || '';
+               excerpt = $('#excerpt').val() || '';
+
+               if ( $('#wp-content-wrap').hasClass('tmce-active') && typeof switchEditors != 'undefined' )
+                       content = switchEditors.pre_wpautop( content );
+
+               // cookie == 'check' means the post was not saved properly, always show #local-storage-notice
+               if ( cookie != 'check' && this.compare( content, post_data.content ) && this.compare( post_title, post_data.post_title ) && this.compare( excerpt, post_data.excerpt ) ) {
+                       return;
+               }
+
+               this.restore_post_data = post_data;
+               this.undo_post_data = {
+                       content: content,
+                       post_title: post_title,
+                       excerpt: excerpt
+               };
+
+               notice = $('#local-storage-notice');
+               $('.wrap h2').first().after( notice.addClass('updated').show() );
+
+               notice.on( 'click', function(e) {
+                       var target = $( e.target );
+
+                       if ( target.hasClass('restore-backup') ) {
+                               self.restorePost( self.restore_post_data );
+                               target.parent().hide();
+                               $(this).find('p.undo-restore').show();
+                       } else if ( target.hasClass('undo-restore-backup') ) {
+                               self.restorePost( self.undo_post_data );
+                               target.parent().hide();
+                               $(this).find('p.local-restore').show();
+                       }
+
+                       e.preventDefault();
+               });
+       },
+
+       // Restore the current title, content and excerpt from post_data.
+       restorePost: function( post_data ) {
+               var editor;
+
+               if ( post_data ) {
+                       // Set the last saved data
+                       this.lastSavedData = wp.autosave.getCompareString( post_data );
+
+                       if ( $('#title').val() != post_data.post_title )
+                               $('#title').focus().val( post_data.post_title || '' );
+
+                       $('#excerpt').val( post_data.excerpt || '' );
+                       editor = typeof tinymce != 'undefined' && tinymce.get('content');
+
+                       if ( editor && ! editor.isHidden() && typeof switchEditors != 'undefined' ) {
+                               // Make sure there's an undo level in the editor
+                               editor.undoManager.add();
+                               editor.setContent( post_data.content ? switchEditors.wpautop( post_data.content ) : '' );
+                       } else {
+                               // Make sure the Text editor is selected
+                               $('#content-html').click();
+                               $('#content').val( post_data.content );
+                       }
+
+                       return true;
+               }
+
+               return false;
+       }
+};
+
+wp.autosave.local.init();
+
+}(jQuery));