/*global mw */ /** * VisualEditor MediaWiki initialization Target class. * * @copyright 2011-2012 VisualEditor Team and others; see AUTHORS.txt * @license The MIT License (MIT); see LICENSE.txt */ /** * MediaWiki target. * * @class * @constructor * @extends {ve.EventEmitter} * @param {String} pageName Name of target page * @param {Number} [revision] Revision ID */ ve.init.mw.Target = function VeInitMwTarget( pageName, revision ) { // Parent constructor ve.EventEmitter.call( this ); // Properties this.pageName = pageName; this.pageExists = mw.config.get( 'wgArticleId', 0 ) !== 0; this.oldid = revision || ''; this.editToken = mw.user.tokens.get( 'editToken' ); this.apiUrl = mw.util.wikiScript( 'api' ); this.submitUrl = ( new mw.Uri( mw.util.wikiGetlink( this.pageName ) ) ) .extend( { 'action': 'submit' } ); this.modules = ['ext.visualEditor.core', 'ext.visualEditor.specialMessages'] .concat( window.devicePixelRatio > 1 ? ['ext.visualEditor.viewPageTarget.icons-vector', 'ext.visualEditor.icons-vector'] : ['ext.visualEditor.viewPageTarget.icons-raster', 'ext.visualEditor.icons-raster'] ); this.loading = false; this.saving = false; this.serializing = false; this.submitting = false; this.baseTimeStamp = null; this.startTimeStamp = null; this.dom = null; this.editNotices = null; this.isMobileDevice = ( 'ontouchstart' in window || ( window.DocumentTouch && document instanceof window.DocumentTouch ) ); }; /* Inheritance */ ve.inheritClass( ve.init.mw.Target, ve.EventEmitter ); /* Static Methods */ /** * Handle response to a successful load request. * * This method is called within the context of a target instance. If successful the DOM from the * server will be parsed, stored in {this.dom} and then {ve.init.mw.Target.onReady} will be called once * the modules are ready. * * @static * @method * @param {Object} response XHR Response object * @param {String} status Text status message * @emits loadError (null, message, null) */ ve.init.mw.Target.onLoad = function ( response ) { var key, tmp, el, data = response.visualeditor; if ( !data && !response.error ) { ve.init.mw.Target.onLoadError.call( this, null, 'Invalid response in response from server', null ); } else if ( response.error || data.result === 'error' ) { ve.init.mw.Target.onLoadError.call( this, null, 'Server error', null ); } else if ( typeof data.content !== 'string' ) { ve.init.mw.Target.onLoadError.call( this, null, 'No HTML content in response from server', null ); } else { this.dom = $( '

' ).html( data.content )[0]; /** * Don't show notices with no visible html (bug 43013). */ // Since we're going to parse them, we might as well save these nodes // so we don't have to parse them again later. this.editNotices = {}; // This is a temporary container for parsed notices in the . // We need the elements to be in the DOM in order for stylesheets to apply // and jquery.visibleText to determine whether a node is visible. tmp = document.createElement( 'div' ); // The following is essentially display none, but we can't use that // since then all descendants will be considered invisible too. tmp.style.cssText = 'position: static; top: 0; width: 0; height: 0; border: 0; visibility: hidden'; document.body.appendChild( tmp ); for ( key in data.notices ) { el = $( '

' ) .addClass( 've-init-mw-viewPageTarget-toolbar-editNotices-notice' ) .attr( 'rel', key ) .html( data.notices[key] ) .get( 0 ); tmp.appendChild( el ); if ( $.getVisibleText( el ).trim() !== '' ) { this.editNotices[key] = el; } tmp.removeChild( el ); } document.body.removeChild( tmp ); this.baseTimeStamp = data.basetimestamp; this.startTimeStamp = data.starttimestamp; // Everything worked, the page was loaded, continue as soon as the module is ready mw.loader.using( this.modules, ve.bind( ve.init.mw.Target.onReady, this ) ); } }; /** * Respond to both DOM and modules being loaded and ready. * * This method is called within the context of a target instance. After the load event is emitted * this.dom is cleared, allowing it to be garbage collected. * * @static * @method * @emits load (dom) */ ve.init.mw.Target.onReady = function () { this.loading = false; this.emit( 'load', this.dom ); // Release DOM data this.dom = null; }; /** * Respond to an unsuccessful load request. * * This method is called within the context of a target instance. * * @static * @method * @param {Object} jqXHR * @param {String} status Text status message * @param {mixed} error HTTP status text * @emits loadError (jqXHR, status, error) */ ve.init.mw.Target.onLoadError = function ( jqXHR, status, error ) { this.loading = false; this.emit( 'loadError', jqXHR, status, error ); }; /** * Respond to a successful save request. * * This method is called within the context of a target instance. * * @static * @method * @param {Object} response Response data * @param {String} status Text status message * @emits save (html) * @emits saveError (null, message, null) */ ve.init.mw.Target.onSave = function ( response ) { this.saving = false; var data = response.visualeditor; if ( !data && !response.error ) { ve.init.mw.Target.onSaveError.call( this, null, 'Invalid response from server', null ); } else if ( response.error ) { if (response.error.code === 'editconflict' ) { this.emit( 'editConflict' ); } else { ve.init.mw.Target.onSaveError.call( this, null, 'Unsuccessful request: ' + response.error.info, null ); } } else if ( data.result !== 'success' ) { ve.init.mw.Target.onSaveError.call( this, null, 'Failed request: ' + data.result, null ); } else if ( typeof data.content !== 'string' ) { ve.init.mw.Target.onSaveError.call( this, null, 'Invalid HTML content in response from server', null ); } else { this.emit( 'save', data.content ); } }; /** * Respond to an unsuccessful save request. * * @static * @method * @context {ve.init.mw.Target} * @param {Object} jqXHR * @param {String} status Text status message * @param {mixed} error HTTP status text * @emits saveError (jqXHR, status, error) */ ve.init.mw.Target.onSaveError = function ( jqXHR, status, error ) { this.saving = false; this.emit( 'saveError', jqXHR, status, error ); }; /** * Respond to a successful show changes request. * * @static * @method * @param {Object} response Response data * @param {String} status Text status message * @emits save (diffHtml) * @emits saveError (null, message, null) */ ve.init.mw.Target.onShowChanges = function ( response ) { var data = response.visualeditor; if ( !data && !response.error ) { ve.init.mw.Target.onShowChangesError.call( this, null, 'Invalid response from server', null ); } else if ( response.error ) { ve.init.mw.Target.onShowChangesError.call( this, null, 'Unsuccessful request: ' + response.error.info, null ); } else if ( data.result !== 'success' ) { ve.init.mw.Target.onShowChangesError.call( this, null, 'Failed request: ' + data.result, null ); } else if ( typeof data.diff !== 'string' ) { ve.init.mw.Target.onShowChangesError.call( this, null, 'Invalid HTML content in response from server', null ); } else { this.emit( 'showChanges', data.diff ); } }; /** * Respond to error during saveChanges action. * * @static * @method * @context {ve.init.mw.Target} * @param {Object} jqXHR * @param {String} status Text status message * @param {mixed} error HTTP status text * @emits showChangesError (jqXHR, status, error) */ ve.init.mw.Target.onShowChangesError = function ( jqXHR, status, error ) { this.saving = false; this.emit( 'showChangesError', jqXHR, status, error ); }; /** * Respond to a successful serialize request. * * This method is called within the context of a target instance. * * @static * @method * @param {Object} response XHR Response object * @param {String} status Text status message * @emits save (html) * @emits saveError (null, message, null) */ ve.init.mw.Target.onSerialize = function ( response ) { this.serializing = false; var data = response.visualeditor; if ( !data && !response.error ) { ve.init.mw.Target.onSerializeError.call( this, null, 'Invalid response from server', null ); } else if ( response.error || data.result === 'error' ) { ve.init.mw.Target.onSerializeError.call( this, null, 'Server error', null ); } else if ( typeof data.content !== 'string' ) { ve.init.mw.Target.onSerializeError.call( this, null, 'No Wikitext content in response from server', null ); } else { if ( typeof this.serializeCallback === 'function' ) { this.serializeCallback( data.content ); delete this.serializeCallback; } } }; /** * Respond to an unsuccessful serialize request. * * This method is called within the context of a target instance. * * @static * @method * @param {Object} data HTTP Response object * @param {String} status Text status message * @param {Mixed} error Thrown exception or HTTP error string * @emits saveError (response, status, error) */ ve.init.mw.Target.onSerializeError = function ( response, status, error ) { this.serializing = false; this.emit( 'serializeError', response, status, error ); }; /* Methods */ /** * Gets DOM from Parsoid API. * * This method performs an asynchronous action and uses a callback function to handle the result. * * A side-effect of calling this method is that it requests {this.modules} be loaded. * * @method * @returns {Boolean} Loading has been started */ ve.init.mw.Target.prototype.load = function () { // Prevent duplicate requests if ( this.loading ) { return false; } // Start loading the module immediately mw.loader.load( this.modules ); // Load DOM this.loading = true; $.ajax( { 'url': this.apiUrl, 'data': { 'action': 'visualeditor', 'paction': 'parse', 'page': this.pageName, 'oldid': this.oldid, 'token': this.editToken, 'format': 'json' }, 'dataType': 'json', 'type': 'POST', // Wait up to 100 seconds before giving up 'timeout': 100000, 'cache': 'false', 'success': ve.bind( ve.init.mw.Target.onLoad, this ), 'error': ve.bind( ve.init.mw.Target.onLoadError, this ) } ); return true; }; /** * Posts DOM to Parsoid API. * * This method performs an asynchronous action and uses a callback function to handle the result. * * @example * target.save( dom, { 'summary': 'test', 'minor': true, 'watch': false } ); * * @method * @param {HTMLElement} dom DOM to save * @param {Object} options Saving options * - {String} summary Edit summary * - {Boolean} minor Edit is a minor edit * - {Boolean} watch Watch this page * @returns {Boolean} Saving has been started */ ve.init.mw.Target.prototype.save = function ( dom, options ) { // Prevent duplicate requests if ( this.saving ) { return false; } // Save DOM this.saving = true; $.ajax( { 'url': this.apiUrl, 'data': { 'format': 'json', 'action': 'visualeditor', 'paction': 'save', 'page': this.pageName, 'oldid': this.oldid, 'basetimestamp': this.baseTimeStamp, 'starttimestamp': this.startTimeStamp, 'html': $( dom ).html(), 'token': this.editToken, 'summary': options.summary, 'minor': options.minor, 'watch': options.watch }, 'dataType': 'json', 'type': 'POST', // Wait up to 100 seconds before giving up 'timeout': 100000, 'success': ve.bind( ve.init.mw.Target.onSave, this ), 'error': ve.bind( ve.init.mw.Target.onSaveError, this ) } ); return true; }; /** * Posts DOM to Parsoid API to retreive wikitext diff. * * @method * @param {HTMLElement} dom DOM to compare against (via wikitext). */ ve.init.mw.Target.prototype.showChanges = function ( dom ) { $.ajax( { 'url': this.apiUrl, 'data': { 'format': 'json', 'action': 'visualeditor', 'paction': 'diff', 'page': this.pageName, 'html': $( dom ).html(), // TODO: API required editToken, though not relevant for diff 'token': this.editToken }, 'dataType': 'json', 'type': 'POST', // Wait up to 100 seconds before giving up 'timeout': 100000, 'success': ve.bind( ve.init.mw.Target.onShowChanges, this ), 'error': ve.bind( ve.init.mw.Target.onShowChangesError, this ) } ); }; /** * Posts DOM to Parsoid API. * * This method performs a synchronous action and will take the user to a new page when complete. * * @example * target.submit( wikitext, { 'summary': 'test', 'minor': true, 'watch': false } ); * * @method * @param {String} wikitext Wikitext to submit * @param {Object} options Saving options * - {String} summary Edit summary * - {Boolean} minor Edit is a minor edit * - {Boolean} watch Watch this page * @returns {Boolean} Submitting has been started */ ve.init.mw.Target.prototype.submit = function ( wikitext, options ) { // Prevent duplicate requests if ( this.submitting ) { return false; } // Save DOM this.submitting = true; var key, $form = $( '' ), params = { 'format': 'text/x-wiki', 'oldid': this.oldid, 'wpStarttime': this.baseTimeStamp, 'wpEdittime': this.startTimeStamp, 'wpTextbox1': wikitext, 'wpSummary': options.summary, 'wpWatchthis': options.watch, 'wpMinoredit': options.minor, 'wpEditToken': this.editToken, 'wpSave': 1 }; // Add params as hidden fields for ( key in params ) { $form.append( $( '' ).attr( { 'name': key, 'value': params[key] } ) ); } // Submit the form, mimicking a traditional edit $form.attr( 'action', this.submitUrl ).appendTo( 'body' ).submit(); return true; }; /** * Gets Wikitext from Parsoid API. * * This method performs an asynchronous action and uses a callback function to handle the result. * * @example * target.serialize( * dom, * function ( wikitext ) { * // Do something with the loaded DOM * } * ); * * @method * @param {HTMLElement} dom DOM to serialize * @param {Function} callback Function to call when complete, accepts error and wikitext arguments * @returns {Boolean} Serializing has beeen started */ ve.init.mw.Target.prototype.serialize = function ( dom, callback ) { // Prevent duplicate requests if ( this.serializing ) { return false; } // Load DOM this.serializing = true; this.serializeCallback = callback; $.ajax( { 'url': this.apiUrl, 'data': { 'action': 'visualeditor', 'paction': 'serialize', 'html': $( dom ).html(), 'page': this.pageName, 'token': this.editToken, 'format': 'json' }, 'dataType': 'json', 'type': 'POST', // Wait up to 100 seconds before giving up 'timeout': 100000, 'cache': 'false', 'success': ve.bind( ve.init.mw.Target.onSerialize, this ), 'error': ve.bind( ve.init.mw.Target.onSerializeError, this ) } ); return true; }; ve.init.mw.Target.prototype.reportProblem = function ( message ) { // Gather reporting information var now = new Date(), editedData = this.surface.getDocumentModel().getFullData(), report = { 'title': this.pageName, 'oldid': this.oldid, 'timestamp': now.getTime() + 60000 * now.getTimezoneOffset(), 'message': message, 'diff': this.diffHtml, 'originalHtml': this.originalHtml, 'originalData': ve.dm.converter.getDataFromDom( $( '

' ).html( this.originalHtml )[0] ), 'editedData': editedData, 'editedHtml': ve.dm.converter.getDomFromData( editedData ).innerHTML, 'wiki': mw.config.get( 'wgDBname' ) }; $.post( 'http://parsoid.wmflabs.org/_bugs/', { 'data': JSON.stringify( report ) }, function () { // This space intentionally left blank }, 'text' ); };