862 lines
21 KiB
JavaScript
862 lines
21 KiB
JavaScript
/**
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* @output wp-includes/js/autosave.js
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*/
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/* global tinymce, wpCookies, autosaveL10n, switchEditors */
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// Back-compat.
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window.autosave = function() {
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return true;
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};
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/**
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* Adds autosave to the window object on dom ready.
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*
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* @since 3.9.0
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*
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* @param {jQuery} $ jQuery object.
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* @param {window} The window object.
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*
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*/
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( function( $, window ) {
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/**
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* Auto saves the post.
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*
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* @since 3.9.0
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*
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* @return {Object}
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* {{
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* getPostData: getPostData,
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* getCompareString: getCompareString,
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* disableButtons: disableButtons,
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* enableButtons: enableButtons,
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* local: ({hasStorage, getSavedPostData, save, suspend, resume}|*),
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* server: ({tempBlockSave, triggerSave, postChanged, suspend, resume}|*)}
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* }
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* The object with all functions for autosave.
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*/
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function autosave() {
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var initialCompareString,
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lastTriggerSave = 0,
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$document = $(document);
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/**
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* Returns the data saved in both local and remote autosave.
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*
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* @since 3.9.0
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*
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* @param {string} type The type of autosave either local or remote.
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*
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* @return {Object} Object containing the post data.
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*/
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function getPostData( type ) {
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var post_name, parent_id, data,
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time = ( new Date() ).getTime(),
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cats = [],
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editor = getEditor();
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// Don't run editor.save() more often than every 3 seconds.
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// It is resource intensive and might slow down typing in long posts on slow devices.
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if ( editor && editor.isDirty() && ! editor.isHidden() && time - 3000 > lastTriggerSave ) {
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editor.save();
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lastTriggerSave = time;
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}
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data = {
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post_id: $( '#post_ID' ).val() || 0,
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post_type: $( '#post_type' ).val() || '',
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post_author: $( '#post_author' ).val() || '',
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post_title: $( '#title' ).val() || '',
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content: $( '#content' ).val() || '',
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excerpt: $( '#excerpt' ).val() || ''
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};
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if ( type === 'local' ) {
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return data;
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}
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$( 'input[id^="in-category-"]:checked' ).each( function() {
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cats.push( this.value );
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});
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data.catslist = cats.join(',');
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if ( post_name = $( '#post_name' ).val() ) {
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data.post_name = post_name;
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}
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if ( parent_id = $( '#parent_id' ).val() ) {
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data.parent_id = parent_id;
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}
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if ( $( '#comment_status' ).prop( 'checked' ) ) {
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data.comment_status = 'open';
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}
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if ( $( '#ping_status' ).prop( 'checked' ) ) {
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data.ping_status = 'open';
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}
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if ( $( '#auto_draft' ).val() === '1' ) {
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data.auto_draft = '1';
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}
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return data;
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}
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/**
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* Concatenates the title, content and excerpt. This is used to track changes
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* when auto-saving.
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*
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* @since 3.9.0
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*
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* @param {Object} postData The object containing the post data.
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*
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* @return {string} A concatenated string with title, content and excerpt.
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*/
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function getCompareString( postData ) {
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if ( typeof postData === 'object' ) {
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return ( postData.post_title || '' ) + '::' + ( postData.content || '' ) + '::' + ( postData.excerpt || '' );
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}
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return ( $('#title').val() || '' ) + '::' + ( $('#content').val() || '' ) + '::' + ( $('#excerpt').val() || '' );
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}
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/**
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* Disables save buttons.
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*
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* @since 3.9.0
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*
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* @return {void}
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*/
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function disableButtons() {
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$document.trigger('autosave-disable-buttons');
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// Re-enable 5 sec later. Just gives autosave a head start to avoid collisions.
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setTimeout( enableButtons, 5000 );
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}
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/**
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* Enables save buttons.
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*
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* @since 3.9.0
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*
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* @return {void}
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*/
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function enableButtons() {
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$document.trigger( 'autosave-enable-buttons' );
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}
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/**
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* Gets the content editor.
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*
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* @since 4.6.0
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*
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* @return {boolean|*} Returns either false if the editor is undefined,
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* or the instance of the content editor.
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*/
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function getEditor() {
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return typeof tinymce !== 'undefined' && tinymce.get('content');
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}
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/**
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* Autosave in localStorage.
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*
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* @since 3.9.0
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*
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* @return {
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* {
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* hasStorage: *,
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* getSavedPostData: getSavedPostData,
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* save: save,
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* suspend: suspend,
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* resume: resume
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* }
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* }
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* The object with all functions for local storage autosave.
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*/
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function autosaveLocal() {
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var blog_id, post_id, hasStorage, intervalTimer,
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lastCompareString,
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isSuspended = false;
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/**
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* Checks if the browser supports sessionStorage and it's not disabled.
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*
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* @since 3.9.0
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*
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* @return {boolean} True if the sessionStorage is supported and enabled.
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*/
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function checkStorage() {
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var test = Math.random().toString(),
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result = false;
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try {
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window.sessionStorage.setItem( 'wp-test', test );
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result = window.sessionStorage.getItem( 'wp-test' ) === test;
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window.sessionStorage.removeItem( 'wp-test' );
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} catch(e) {}
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hasStorage = result;
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return result;
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}
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/**
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* Initializes the local storage.
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*
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* @since 3.9.0
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*
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* @return {boolean|Object} False if no sessionStorage in the browser or an Object
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* containing all postData for this blog.
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*/
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function getStorage() {
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var stored_obj = false;
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// Separate local storage containers for each blog_id.
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if ( hasStorage && blog_id ) {
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stored_obj = sessionStorage.getItem( 'wp-autosave-' + blog_id );
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if ( stored_obj ) {
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stored_obj = JSON.parse( stored_obj );
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} else {
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stored_obj = {};
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}
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}
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return stored_obj;
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}
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/**
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* Sets the storage for this blog. Confirms that the data was saved
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* successfully.
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*
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* @since 3.9.0
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*
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* @return {boolean} True if the data was saved successfully, false if it wasn't saved.
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*/
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function setStorage( stored_obj ) {
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var key;
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if ( hasStorage && blog_id ) {
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key = 'wp-autosave-' + blog_id;
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sessionStorage.setItem( key, JSON.stringify( stored_obj ) );
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return sessionStorage.getItem( key ) !== null;
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}
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return false;
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}
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/**
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* Gets the saved post data for the current post.
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*
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* @since 3.9.0
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*
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* @return {boolean|Object} False if no storage or no data or the postData as an Object.
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*/
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function getSavedPostData() {
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var stored = getStorage();
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if ( ! stored || ! post_id ) {
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return false;
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}
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return stored[ 'post_' + post_id ] || false;
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}
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/**
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* Sets (save or delete) post data in the storage.
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*
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* If stored_data evaluates to 'false' the storage key for the current post will be removed.
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*
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* @since 3.9.0
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*
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* @param {Object|boolean|null} stored_data The post data to store or null/false/empty to delete the key.
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*
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* @return {boolean} True if data is stored, false if data was removed.
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*/
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function setData( stored_data ) {
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var stored = getStorage();
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if ( ! stored || ! post_id ) {
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return false;
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}
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if ( stored_data ) {
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stored[ 'post_' + post_id ] = stored_data;
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} else if ( stored.hasOwnProperty( 'post_' + post_id ) ) {
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delete stored[ 'post_' + post_id ];
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} else {
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return false;
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}
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return setStorage( stored );
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}
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/**
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* Sets isSuspended to true.
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*
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* @since 3.9.0
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*
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* @return {void}
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*/
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function suspend() {
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isSuspended = true;
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}
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/**
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* Sets isSuspended to false.
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*
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* @since 3.9.0
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*
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* @return {void}
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*/
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function resume() {
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isSuspended = false;
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}
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/**
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* Saves post data for the current post.
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*
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* Runs on a 15 seconds interval, saves when there are differences in the post title or content.
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* When the optional data is provided, updates the last saved post data.
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*
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* @since 3.9.0
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*
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* @param {Object} data The post data for saving, minimum 'post_title' and 'content'.
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*
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* @return {boolean} Returns true when data has been saved, otherwise it returns false.
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*/
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function save( data ) {
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var postData, compareString,
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result = false;
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if ( isSuspended || ! hasStorage ) {
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return false;
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}
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if ( data ) {
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postData = getSavedPostData() || {};
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$.extend( postData, data );
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} else {
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postData = getPostData('local');
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}
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compareString = getCompareString( postData );
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if ( typeof lastCompareString === 'undefined' ) {
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lastCompareString = initialCompareString;
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}
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// If the content, title and excerpt did not change since the last save, don't save again.
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if ( compareString === lastCompareString ) {
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return false;
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}
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postData.save_time = ( new Date() ).getTime();
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postData.status = $( '#post_status' ).val() || '';
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result = setData( postData );
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if ( result ) {
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lastCompareString = compareString;
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}
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return result;
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}
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/**
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* Initializes the auto save function.
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*
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* Checks whether the editor is active or not to use the editor events
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* to autosave, or uses the values from the elements to autosave.
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*
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* Runs on DOM ready.
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*
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* @since 3.9.0
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*
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* @return {void}
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*/
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function run() {
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post_id = $('#post_ID').val() || 0;
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// Check if the local post data is different than the loaded post data.
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if ( $( '#wp-content-wrap' ).hasClass( 'tmce-active' ) ) {
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/*
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* If TinyMCE loads first, check the post 1.5 seconds after it is ready.
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* By this time the content has been loaded in the editor and 'saved' to the textarea.
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* This prevents false positives.
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*/
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$document.on( 'tinymce-editor-init.autosave', function() {
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window.setTimeout( function() {
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checkPost();
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}, 1500 );
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});
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} else {
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checkPost();
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}
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// Save every 15 seconds.
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intervalTimer = window.setInterval( save, 15000 );
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$( 'form#post' ).on( 'submit.autosave-local', function() {
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var editor = getEditor(),
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post_id = $('#post_ID').val() || 0;
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if ( editor && ! editor.isHidden() ) {
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// Last onSubmit event in the editor, needs to run after the content has been moved to the textarea.
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editor.on( 'submit', function() {
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save({
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post_title: $( '#title' ).val() || '',
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content: $( '#content' ).val() || '',
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excerpt: $( '#excerpt' ).val() || ''
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});
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});
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} else {
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save({
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post_title: $( '#title' ).val() || '',
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content: $( '#content' ).val() || '',
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excerpt: $( '#excerpt' ).val() || ''
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});
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}
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var secure = ( 'https:' === window.location.protocol );
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wpCookies.set( 'wp-saving-post', post_id + '-check', 24 * 60 * 60, false, false, secure );
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});
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}
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/**
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* Compares 2 strings. Removes whitespaces in the strings before comparing them.
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*
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* @since 3.9.0
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*
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* @param {string} str1 The first string.
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* @param {string} str2 The second string.
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* @return {boolean} True if the strings are the same.
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*/
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function compare( str1, str2 ) {
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function removeSpaces( string ) {
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return string.toString().replace(/[\x20\t\r\n\f]+/g, '');
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}
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return ( removeSpaces( str1 || '' ) === removeSpaces( str2 || '' ) );
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}
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/**
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* Checks if the saved data for the current post (if any) is different than the
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* loaded post data on the screen.
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*
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* Shows a standard message letting the user restore the post data if different.
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*
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* @since 3.9.0
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*
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* @return {void}
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*/
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function checkPost() {
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var content, post_title, excerpt, $notice,
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postData = getSavedPostData(),
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cookie = wpCookies.get( 'wp-saving-post' ),
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$newerAutosaveNotice = $( '#has-newer-autosave' ).parent( '.notice' ),
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$headerEnd = $( '.wp-header-end' );
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if ( cookie === post_id + '-saved' ) {
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wpCookies.remove( 'wp-saving-post' );
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// The post was saved properly, remove old data and bail.
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setData( false );
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return;
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}
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if ( ! postData ) {
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return;
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}
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content = $( '#content' ).val() || '';
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post_title = $( '#title' ).val() || '';
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excerpt = $( '#excerpt' ).val() || '';
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if ( compare( content, postData.content ) && compare( post_title, postData.post_title ) &&
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compare( excerpt, postData.excerpt ) ) {
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return;
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}
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/*
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* If '.wp-header-end' is found, append the notices after it otherwise
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* after the first h1 or h2 heading found within the main content.
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*/
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if ( ! $headerEnd.length ) {
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$headerEnd = $( '.wrap h1, .wrap h2' ).first();
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}
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$notice = $( '#local-storage-notice' )
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.insertAfter( $headerEnd )
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.addClass( 'notice-warning' );
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if ( $newerAutosaveNotice.length ) {
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// If there is a "server" autosave notice, hide it.
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// The data in the session storage is either the same or newer.
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$newerAutosaveNotice.slideUp( 150, function() {
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$notice.slideDown( 150 );
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});
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} else {
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$notice.slideDown( 200 );
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}
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$notice.find( '.restore-backup' ).on( 'click.autosave-local', function() {
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restorePost( postData );
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$notice.fadeTo( 250, 0, function() {
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$notice.slideUp( 150 );
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});
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});
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}
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/**
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* Restores the current title, content and excerpt from postData.
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*
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* @since 3.9.0
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*
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* @param {Object} postData The object containing all post data.
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*
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* @return {boolean} True if the post is restored.
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*/
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function restorePost( postData ) {
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var editor;
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if ( postData ) {
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// Set the last saved data.
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lastCompareString = getCompareString( postData );
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if ( $( '#title' ).val() !== postData.post_title ) {
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$( '#title' ).focus().val( postData.post_title || '' );
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}
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$( '#excerpt' ).val( postData.excerpt || '' );
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editor = getEditor();
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if ( editor && ! editor.isHidden() && typeof switchEditors !== 'undefined' ) {
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if ( editor.settings.wpautop && postData.content ) {
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postData.content = switchEditors.wpautop( postData.content );
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}
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// Make sure there's an undo level in the editor.
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editor.undoManager.transact( function() {
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editor.setContent( postData.content || '' );
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editor.nodeChanged();
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});
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} else {
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// Make sure the Text editor is selected.
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$( '#content-html' ).click();
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$( '#content' ).focus();
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// Using document.execCommand() will let the user undo.
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document.execCommand( 'selectAll' );
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document.execCommand( 'insertText', false, postData.content || '' );
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}
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return true;
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}
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return false;
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}
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blog_id = typeof window.autosaveL10n !== 'undefined' && window.autosaveL10n.blog_id;
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/*
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* Check if the browser supports sessionStorage and it's not disabled,
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* then initialize and run checkPost().
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* Don't run if the post type supports neither 'editor' (textarea#content) nor 'excerpt'.
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*/
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if ( checkStorage() && blog_id && ( $('#content').length || $('#excerpt').length ) ) {
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$document.ready( run );
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}
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return {
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hasStorage: hasStorage,
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getSavedPostData: getSavedPostData,
|
|
save: save,
|
|
suspend: suspend,
|
|
resume: resume
|
|
};
|
|
}
|
|
|
|
/**
|
|
* Auto saves the post on the server.
|
|
*
|
|
* @since 3.9.0
|
|
*
|
|
* @return {Object} {
|
|
* {
|
|
* tempBlockSave: tempBlockSave,
|
|
* triggerSave: triggerSave,
|
|
* postChanged: postChanged,
|
|
* suspend: suspend,
|
|
* resume: resume
|
|
* }
|
|
* } The object all functions for autosave.
|
|
*/
|
|
function autosaveServer() {
|
|
var _blockSave, _blockSaveTimer, previousCompareString, lastCompareString,
|
|
nextRun = 0,
|
|
isSuspended = false;
|
|
|
|
|
|
/**
|
|
* Blocks saving for the next 10 seconds.
|
|
*
|
|
* @since 3.9.0
|
|
*
|
|
* @return {void}
|
|
*/
|
|
function tempBlockSave() {
|
|
_blockSave = true;
|
|
window.clearTimeout( _blockSaveTimer );
|
|
|
|
_blockSaveTimer = window.setTimeout( function() {
|
|
_blockSave = false;
|
|
}, 10000 );
|
|
}
|
|
|
|
/**
|
|
* Sets isSuspended to true.
|
|
*
|
|
* @since 3.9.0
|
|
*
|
|
* @return {void}
|
|
*/
|
|
function suspend() {
|
|
isSuspended = true;
|
|
}
|
|
|
|
/**
|
|
* Sets isSuspended to false.
|
|
*
|
|
* @since 3.9.0
|
|
*
|
|
* @return {void}
|
|
*/
|
|
function resume() {
|
|
isSuspended = false;
|
|
}
|
|
|
|
/**
|
|
* Triggers the autosave with the post data.
|
|
*
|
|
* @since 3.9.0
|
|
*
|
|
* @param {Object} data The post data.
|
|
*
|
|
* @return {void}
|
|
*/
|
|
function response( data ) {
|
|
_schedule();
|
|
_blockSave = false;
|
|
lastCompareString = previousCompareString;
|
|
previousCompareString = '';
|
|
|
|
$document.trigger( 'after-autosave', [data] );
|
|
enableButtons();
|
|
|
|
if ( data.success ) {
|
|
// No longer an auto-draft.
|
|
$( '#auto_draft' ).val('');
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Saves immediately.
|
|
*
|
|
* Resets the timing and tells heartbeat to connect now.
|
|
*
|
|
* @since 3.9.0
|
|
*
|
|
* @return {void}
|
|
*/
|
|
function triggerSave() {
|
|
nextRun = 0;
|
|
wp.heartbeat.connectNow();
|
|
}
|
|
|
|
/**
|
|
* Checks if the post content in the textarea has changed since page load.
|
|
*
|
|
* This also happens when TinyMCE is active and editor.save() is triggered by
|
|
* wp.autosave.getPostData().
|
|
*
|
|
* @since 3.9.0
|
|
*
|
|
* @return {boolean} True if the post has been changed.
|
|
*/
|
|
function postChanged() {
|
|
return getCompareString() !== initialCompareString;
|
|
}
|
|
|
|
/**
|
|
* Checks if the post can be saved or not.
|
|
*
|
|
* If the post hasn't changed or it cannot be updated,
|
|
* because the autosave is blocked or suspended, the function returns false.
|
|
*
|
|
* @since 3.9.0
|
|
*
|
|
* @return {Object} Returns the post data.
|
|
*/
|
|
function save() {
|
|
var postData, compareString;
|
|
|
|
// window.autosave() used for back-compat.
|
|
if ( isSuspended || _blockSave || ! window.autosave() ) {
|
|
return false;
|
|
}
|
|
|
|
if ( ( new Date() ).getTime() < nextRun ) {
|
|
return false;
|
|
}
|
|
|
|
postData = getPostData();
|
|
compareString = getCompareString( postData );
|
|
|
|
// First check.
|
|
if ( typeof lastCompareString === 'undefined' ) {
|
|
lastCompareString = initialCompareString;
|
|
}
|
|
|
|
// No change.
|
|
if ( compareString === lastCompareString ) {
|
|
return false;
|
|
}
|
|
|
|
previousCompareString = compareString;
|
|
tempBlockSave();
|
|
disableButtons();
|
|
|
|
$document.trigger( 'wpcountwords', [ postData.content ] )
|
|
.trigger( 'before-autosave', [ postData ] );
|
|
|
|
postData._wpnonce = $( '#_wpnonce' ).val() || '';
|
|
|
|
return postData;
|
|
}
|
|
|
|
/**
|
|
* Sets the next run, based on the autosave interval.
|
|
*
|
|
* @private
|
|
*
|
|
* @since 3.9.0
|
|
*
|
|
* @return {void}
|
|
*/
|
|
function _schedule() {
|
|
nextRun = ( new Date() ).getTime() + ( autosaveL10n.autosaveInterval * 1000 ) || 60000;
|
|
}
|
|
|
|
/**
|
|
* Sets the autosaveData on the autosave heartbeat.
|
|
*
|
|
* @since 3.9.0
|
|
*
|
|
* @return {void}
|
|
*/
|
|
$document.on( 'heartbeat-send.autosave', function( event, data ) {
|
|
var autosaveData = save();
|
|
|
|
if ( autosaveData ) {
|
|
data.wp_autosave = autosaveData;
|
|
}
|
|
|
|
/**
|
|
* Triggers the autosave of the post with the autosave data on the autosave
|
|
* heartbeat.
|
|
*
|
|
* @since 3.9.0
|
|
*
|
|
* @return {void}
|
|
*/
|
|
}).on( 'heartbeat-tick.autosave', function( event, data ) {
|
|
if ( data.wp_autosave ) {
|
|
response( data.wp_autosave );
|
|
}
|
|
/**
|
|
* Disables buttons and throws a notice when the connection is lost.
|
|
*
|
|
* @since 3.9.0
|
|
*
|
|
* @return {void}
|
|
*/
|
|
}).on( 'heartbeat-connection-lost.autosave', function( event, error, status ) {
|
|
|
|
// When connection is lost, keep user from submitting changes.
|
|
if ( 'timeout' === error || 603 === status ) {
|
|
var $notice = $('#lost-connection-notice');
|
|
|
|
if ( ! wp.autosave.local.hasStorage ) {
|
|
$notice.find('.hide-if-no-sessionstorage').hide();
|
|
}
|
|
|
|
$notice.show();
|
|
disableButtons();
|
|
}
|
|
|
|
/**
|
|
* Enables buttons when the connection is restored.
|
|
*
|
|
* @since 3.9.0
|
|
*
|
|
* @return {void}
|
|
*/
|
|
}).on( 'heartbeat-connection-restored.autosave', function() {
|
|
$('#lost-connection-notice').hide();
|
|
enableButtons();
|
|
}).ready( function() {
|
|
_schedule();
|
|
});
|
|
|
|
return {
|
|
tempBlockSave: tempBlockSave,
|
|
triggerSave: triggerSave,
|
|
postChanged: postChanged,
|
|
suspend: suspend,
|
|
resume: resume
|
|
};
|
|
}
|
|
|
|
/**
|
|
* Sets the autosave time out.
|
|
*
|
|
* Wait for TinyMCE to initialize plus 1 second. for any external css to finish loading,
|
|
* then save to the textarea before setting initialCompareString.
|
|
* This avoids any insignificant differences between the initial textarea content and the content
|
|
* extracted from the editor.
|
|
*
|
|
* @since 3.9.0
|
|
*
|
|
* @return {void}
|
|
*/
|
|
$document.on( 'tinymce-editor-init.autosave', function( event, editor ) {
|
|
if ( editor.id === 'content' ) {
|
|
window.setTimeout( function() {
|
|
editor.save();
|
|
initialCompareString = getCompareString();
|
|
}, 1000 );
|
|
}
|
|
}).ready( function() {
|
|
|
|
// Set the initial compare string in case TinyMCE is not used or not loaded first.
|
|
initialCompareString = getCompareString();
|
|
});
|
|
|
|
return {
|
|
getPostData: getPostData,
|
|
getCompareString: getCompareString,
|
|
disableButtons: disableButtons,
|
|
enableButtons: enableButtons,
|
|
local: autosaveLocal(),
|
|
server: autosaveServer()
|
|
};
|
|
}
|
|
|
|
/** @namespace wp */
|
|
window.wp = window.wp || {};
|
|
window.wp.autosave = autosave();
|
|
|
|
}( jQuery, window ));
|