+
+// 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));