MediaWiki:Gadget-spriteEdit.js

( function { 'use strict';

/** "Global" vars (preserved between editing sessions) **/ var i18n = { blockedNotice: 'You cannot edit this sprite as you are blocked.', blockedReason: 'Reason: $1', browserActionNotSupported: 'Not supported by your browser.', changesSavedNotice: 'Your changes were saved.', controlNewName: 'New name', ctxDeleteImage: 'Delete image', ctxDownloadImage: 'Download image', ctxReplaceImage: 'Replace image', diffError: 'Failed to retrieve diff', diffErrorMissingPage: 'Failed to retrieve page', dupeName: 'This name already exists.', dupeNamesNotice: 'There are duplicate names which must be resolved prior to saving.', errorApi: 'API error', errorConnection: 'Connection error', errorConnectionText: 'Check your internet connection', errorGeneric: 'Error', errorHttp: 'HTTP error', genericError: 'Something went wrong', luaKeyDeprecated: 'deprecated', luaKeyId: 'id', luaKeyIds: 'ids', luaKeyPos: 'pos', luaKeySection: 'section', luaKeySections: 'sections', namePlaceholder: 'Type a name', noPermissionNotice: 'You do not have permission to edit this sprite.', panelChangesIdTitle: 'ID changes', panelChangesNoDiffFromCur: 'No changes from current revision.', panelChangesSheetTitle: 'Spritesheet changes', panelChangesTitle: 'Review your changes', panelCloseTip: 'Close', panelConflictCurText: 'Current text', panelConflictReview: 'Review changes', panelConflictSave: 'Save', panelConflictText: 'An edit conflict has occurred, and was not able to be resolved automatically.', panelConflictTitle: 'Edit conflict', panelConflictYourText: 'Your text', panelDiscardContinue: 'Keep editing', panelDiscardDiscard: 'Discard changes', panelDiscardText: 'Are you sure you wish to discard your changes?', panelDiscardTitle: 'Unsaved changes', panelEcchangesReturn: 'Return to edit conflict form', panelEcchangesTitle: 'Review your manual changes', sectionPlaceholder: 'Type a section name', sectionUncategorized: 'Uncategorized', toolbarNewImage: 'New image', toolbarNewSection: 'New section', toolbarRedo: 'Redo', toolbarReviewChanges: 'Review changes', toolbarSave: 'Save', toolbarSummaryPlaceholder: 'Summarize the changes you made', toolbarToolDeprecate: 'Deprecate', toolbarToolDeprecateTip: 'Toggle names as deprecated', toolbarTools: 'Tools', toolbarUndo: 'Undo' }; var $root = $( document.documentElement ); var $win = $( window ); var $doc = $( '#spritedoc' ); var inlineStyle; var URL = window.URL || window.webkitURL; var imageEditingSupported = !!( window.FileList &&	window.ArrayBuffer &&	window.Blob &&	window.FormData &&	window.ProgressEvent &&	URL && URL.revokeObjectURL && URL.createObjectURL &&	document.createElement( 'canvas' ).getContext ); var dropSupported = 'draggable' in $root[0]; var historySupported = window.history && history.pushState; // HTML pointer-events is dumb and can't be tested for // Just check that we're not IE < 11, old Opera has too little usage to bother checking for var pointerEventsSupported = $.client.profile.name !== 'msie' || $.client.profile.versionBase > 10; var idsPageId = $doc.data( 'idspage' );

// Handle recreating the editor $( '#ca-spriteedit' ).find( 'a' ).click( function( e ) {	// Editor is already loaded, reload the page	if ( $root.hasClass( 'spriteedit-loaded' ) ) {		return;	}	create;	e.preventDefault; } ); if ( historySupported ) { $win.on( 'popstate', function {		if ( location.search.match( 'spriteaction=edit' ) && !$root.hasClass( 'spriteedit-loaded' ) ) {			create( 'history' );		}	} ); }

/** Functions **/ /** * Entry point for the editor * * Updates the page if it has been edited since being viewed * and creates the editor once ready * Is called right at the end of the script, once all other functions * are defined. * * "state" is what triggered the creation (e.g. from history navigation) */ var create = function( state ) { var settings = {}; var mouse = { moved: false, x: 0, y: 0 };	var sorting = false; var oldHtml; var spritesheet; var changes = []; var undoneChanges = []; var usedNames = {}; var loadingImages = []; var panels = {}; var revisionsApi = new mw.Api( { parameters: {		action: 'query',		prop: 'revisions',		rvprop: 'content',		utf8: true	} } ); var parseApi = new mw.Api( { parameters: {		action: 'parse',		prop: 'text',		disablepp: true,		disabletoc: true,		utf8: true	} } ); var $headingTemplate = $( ' ' ).html(		$( ' ' )			.addClass( 'mw-headline spriteedit-new' )			.attr( 'data-placeholder', i18n.sectionPlaceholder )	); var $boxTemplate = $( '' ).addClass( 'spritedoc-box spriteedit-new' ).append(		$( ' ' ).addClass( 'spritedoc-image' ),		$( '' ).addClass( 'spritedoc-names' ).append( $( '' ).addClass( 'spritedoc-name' ).html( ' ' ) )	);	addControls( $headingTemplate, 'heading' ); addControls( $boxTemplate, 'box' ); // Pre-load modules which will be needed later var saveModules = mw.loader.using( [ 'jquery.byteLimit', 'mediawiki.action.history.diff', 'mediawiki.ui.input' ] ); $root.addClass( 'spriteedit-loaded' ); if ( !state && historySupported ) { history.pushState( {}, '', mw.util.getUrl( null, { spriteaction: 'edit' } ) ); }	if ( state !== 'initial' ) { $( '#ca-view' ).add( '#ca-spriteedit' ).toggleClass( 'selected' ); }	if ( imageEditingSupported ) { var $sprite = $doc.find( '.sprite' ).first; settings.imageWidth = $sprite.width; settings.imageHeight = $sprite.height; settings.sheet = $doc.data( 'original-url' ); if ( !settings.sheet ) { settings.sheet = $sprite.css( 'background-image' ) .replace( /^url\(["']?/,  ).replace( /["']?\)$/,  ); $doc.data( 'original-url', settings.sheet ); }		settings.sheet += ( settings.sheet.match( /\?/ ) ? '&' : '?' ) + Date.now; // Cloudfront doesn't allow CORS, so temporarily go through a server that does settings.sheet = 'https://matt-russell.com/cloudfront.php?url=' + encodeURIComponent( settings.sheet ); // Replace the spritesheet with a fresh uncached one to ensure // we don't save over it with an old version. // XHR is used instead of a CORS Image so a blob URL can // be used for the background image, rather than the real URL. // This works around the image being downloaded twice, probably // caused by the background image not reusing the CORS request. var sheetRequest = retryableRequest( function {			var deferred = $.Deferred;			var requestTimeout;			var xhr = new XMLHttpRequest;			xhr.open( 'GET', settings.sheet, true );			xhr.responseType = 'blob';			xhr.onload = function {				clearTimeout( requestTimeout );				if ( this.status !== 200 ) {					deferred.reject( 'http', { textStatus: this.statusText ? this.status + ' ' + this.statusText : 'error' } );					return;				}				spritesheet = new Image;				spritesheet.onload = function {					settings.sheetWidth = this.width;					settings.sheetHeight = this.height;					if ( inlineStyle ) {						inlineStyle.disabled = true;						URL.revokeObjectURL( inlineStyle.url );					}					inlineStyle = mw.util.addCSS( '#spritedoc .sprite { background-image: url(' + this.src + ') !important }' );					inlineStyle.url = this.src;					deferred.resolve;				};				spritesheet.src = URL.createObjectURL( this.response );			};			requestTimeout = setTimeout( function { xhr.abort; deferred.reject( 'http', { textStatus: 'timeout' } ); }, 30 * 1000 );			var errorCallback = xhr.onerror = function {				if ( deferred.state === 'pending' ) {					deferred.reject( 'http', { textStatus: 'error' } );				}			};			// Support: IE 9 only			// Use onreadystatechange to replace onabort			// to handle uncaught aborts			if ( xhr.onabort !== undefined ) {				xhr.onabort = errorCallback;			} else {				xhr.onreadystatechange = function {					// Check readyState before timeout as it changes					if ( xhr.readyState === 4 ) {						// Allow onerror to be called first,						// but that will not handle a native abort						// Also, save errorCallback to a variable						// as xhr.onerror cannot be accessed						window.setTimeout( function { errorCallback; } );					}				};			}			xhr.send;			return deferred.promise( { abort: function { deferred.reject( 'http', { textStatus: 'abort' } ); xhr.abort; } } );		} );	}	// Check if the IDs page has been edited since opening // the page and download the latest version if so	var curContentRequest = retryableRequest( function {		return revisionsApi.get( { rvprop: 'timestamp', pageids: idsPageId } );	} );	var contentRequest = curContentRequest.then( function( data ) {		var currentTimestamp = fixTimestamp( data.query.pages[idsPageId].revisions[0].timestamp );		if ( currentTimestamp > $doc.data( 'idstimestamp' ) ) {			$doc.data( 'idstimestamp', currentTimestamp );			curContentRequest = retryableRequest( function { return parseApi.get( {					title: mw.config.get( 'wgPageName' ),					text: $( '' ).html( $.parseHTML( $doc.attr( 'data-refreshtext' ) ) ).html				} ); } ).done( function( data ) { oldHtml = data.parse.text['*']; $doc.html( oldHtml ); } );			return curContentRequest;		} else {			oldHtml = $doc.html;		}	} ).promise( { abort: curContentRequest.abort } ); // Check if we have permission to edit the IDs page and // spritesheet file and that the user isn't blocked var curPermissionsRequest = retryableRequest( function {		return new mw.Api.get( { action: 'query', meta: 'userinfo', uiprop: 'rights|blockinfo', utf8: true } );	} );	var permissionsRequest = curPermissionsRequest.then( function( data ) {		var info = data.query.userinfo;		var canEdit = true;		if ( info.blockid ) {			canEdit = false;			var $blockNotice = $( ' ' ).text( i18n.blockedNotice );			if ( info.blockreason ) {				curPermissionsRequest = retryableRequest( function { return parseApi.get( { summary: info.blockreason } ); } ).done( function( data ) { $blockNotice.append( ' ', i18n.blockedReason.replace( /\$1/g, $( ' ' ).addClass( 'comment' ).html( data.parse.parsedsummary['*'] ).html ) );				} );			}			$.when( curPermissionsRequest ).always( function { mw.notify( $blockNotice, { type: 'error', autoHide: false } ); } );		} else {			var rights = info.rights;			$.each( [ 'ids', 'sprite' ], function { var requiredRights = $doc.data( this + 'protection' ).split( ',' ); $.each( requiredRights, function {					if ( rights.indexOf( this ) === -1 ) {						canEdit = false;						return false;					}				} ); return canEdit; } );			if ( !canEdit ) {				mw.notify( i18n.noPermissionNotice, { type: 'error', autoHide: false } );			}		}		if ( !canEdit ) {			if ( sheetRequest ) {				sheetRequest.abort;			}			contentRequest.abort;			destroy;		}	} ).promise( { abort: curPermissionsRequest.abort } ); $.when( sheetRequest, contentRequest, permissionsRequest ).then( function {		// Make sure the editor wasn't destroyed while we were waiting		if ( $root.hasClass( 'spriteedit-loaded' ) ) {			enable;		}	}, function( code, error ) {		// Fatal error, bail		if ( sheetRequest ) {			sheetRequest.abort;		}		contentRequest.abort;		permissionsRequest.abort;		handleError( code, error );		destroy;	} ); // Handle closing the editor on navigation if ( historySupported ) { $win.on( 'popstate.spriteEdit', function {			if ( !location.search.match( 'spriteaction=edit' ) && $root.hasClass( 'spriteedit-loaded' ) ) {				close( 'history' );			}		} ); }	/**	 * Create the editor interface *	 * Makes the necessary HTML changes to the documentation, * creates the extra interface elements, and binds the events. */	var enable = function { var $content = $doc.closest( '.documentation' ); var $toolbar; if ( !$content.length ) { $content = $( '#content' ); }		$root.addClass( 'spriteedit-enabled' ); if ( imageEditingSupported ) { $root.addClass( 'spriteedit-imageeditingenabled' ); }		$( '.mw-editsection' ).add( '.mw-editsection-like' ).css( 'display', 'none' ); // Store previous element and parent // to re-attach to once done. var $docPrev = $doc.prev; var $docParent = $doc.parent; $doc.detach; $doc.find( '#toc' ).remove; $doc.append(			$( ' ' ).addClass( 'spriteedit-autoscroll spriteedit-autoscroll-up' ),			$( ' ' ).addClass( 'spriteedit-autoscroll spriteedit-autoscroll-down' )		); var autoScroll = function( now ) { autoScroll.delta = ( now - autoScroll.timeLast ) / ( 1000 / 60 ); autoScroll.timeLast = now; if ( mouse.y !== autoScroll.lastMouseY ) { var areaRect = autoScroll.area.getBoundingClientRect; if ( autoScroll.dir === -1 ) { autoScroll.speed = areaRect.bottom - mouse.y;				} else { autoScroll.speed = mouse.y - areaRect.top + 1; }				autoScroll.lastMouseY = mouse.y;			} // Prevent overscroll var scrollTop = $win.scrollTop; if (				autoScroll.dir === -1 && scrollTop > autoScroll.topLimit ||				autoScroll.dir === 1 && scrollTop + $win.height < autoScroll.bottomLimit			) { scrollBy( 0, autoScroll.dir * Math.round( autoScroll.speed / 2 ) * Math.round( autoScroll.delta ) ); }			autoScroll.id = requestAnimationFrame( autoScroll ); };		autoScroll.start = function( area ) { if ( autoScroll.id ) { autoScroll.stop; }			var scrollTop = $win.scrollTop; autoScroll.area = area; autoScroll.dir = $( area ).hasClass( 'spriteedit-autoscroll-up' ) ? -1 : 1;			autoScroll.speed = 1; autoScroll.timeLast = window.performance ? performance.now : Date.now; autoScroll.topLimit = scrollTop + $doc[0].getBoundingClientRect.top; autoScroll.bottomLimit = scrollTop + $doc.find( '.spritedoc-section' ).last[0].getBoundingClientRect.bottom + 50; autoScroll.id = requestAnimationFrame( autoScroll ); };		autoScroll.stop = function { cancelAnimationFrame( autoScroll.id ); autoScroll.id = 0; };		$doc.find( '.spriteedit-autoscroll' ) .on( 'mouseenter.spriteEdit dragenter.spriteEdit', function {				autoScroll.start( this );			} ) .on( 'mouseleave.spriteEdit dragleave.spriteEdit', autoScroll.stop ); addControls( $doc.find( 'h3' ), 'heading' ); var $boxes = $doc.find( '.spritedoc-box' ); $boxes.each( function {			var $this = $( this );			var $names = $this.find( '.spritedoc-name' );			$this.attr( 'data-sort-key', $names.first.text );			$names.find( 'code' ).each( function { var $code = $( this ); usedNames[$code.text] = [ $code ]; } );		} );		addControls( $boxes, 'box' ); // Collapses and expands boxes in each section when sorting // sections or boxes, so it's easier to get to the right section var collapseBoxes = function( placeholder ) { var $this = $( this ); var isBox = $this.hasClass( 'spritedoc-box' ); var section = isBox ? $this.closest( '.spritedoc-section' )[0] : placeholder; var origPos = this.getBoundingClientRect; var origSectionPos = section.getBoundingClientRect; var heights = []; $doc.find( '.spritedoc-boxes' ).each( function {				var child = this.firstElementChild;				if ( child ) {					if ( $( child ).hasClass( 'spriteedit-ghost' ) ) {						child = child.nextElementSibling || child;					}					heights.push( child.getBoundingClientRect.height );				} else {					heights.push( 0 );				}			} ).each( function( i ) {				// Set styling after get loop to avoid layout thrashing				var height = heights[i];				if ( !height ) {					return;				}				$( this ).css( { height: height, overflow: 'hidden' } );			} );			// First make sure the section is in the same place relative to the window scroll( 0, $win.scrollTop + section.getBoundingClientRect.top - origSectionPos.top ); // Now if we're sorting boxes, make sure the box remains inside the section if ( isBox ) { var sectionPos = section.getBoundingClientRect; if ( origPos.bottom > sectionPos.bottom ) { scroll( 0, $win.scrollTop + sectionPos.bottom - origPos.bottom ); }			}		};		var expandBoxes = function { var origPos = this.getBoundingClientRect; $doc.find( '.spritedoc-boxes' ).css( {				height: 'auto',				overflow: 'visible'			} ); // If we're sorting boxes, scroll so the box is near the cursor var $this = $( this ); if ( $this.hasClass( 'spritedoc-box' ) ) { var boxPos = this.getBoundingClientRect; scroll( 0, $win.scrollTop + boxPos.top + boxPos.height / 2 - mouse.y ); // Flash the box so it is obvious where it was sorted to				$this.css( 'background-color', 'yellow' ); setTimeout( function {					$this.css( 'background-color', '' );				}, 1000 ); } else { // Otherwise make sure the section is in the same place relative to the window scroll( 0, $win.scrollTop + this.getBoundingClientRect.top - origPos.top ); }		};		makeSortable( {			selectors: '.spritedoc-section',			handle: 'h3',			vertical: true,			sortStart: collapseBoxes,			sortEnd: expandBoxes		} ); makeSortable( {			selectors: {				container: '.spritedoc-section',				parent: '.spritedoc-boxes',				elem: '.spritedoc-box'			},			autoSort: true,			sortStart: collapseBoxes,			sortEnd: expandBoxes		} ); makeSortable( {			selectors: {				container: '.spritedoc-box',				parent: '.spritedoc-names',				elem: '.spritedoc-name'			},			autoSort: true		} ); // Create toolbar var contentPadding = { left: $content.css( 'padding-left' ), right: $content.css( 'padding-right' ) };		$toolbar = $( ' ' ).addClass( 'spriteedit-toolbar' ).css( {			paddingLeft: contentPadding.left,			paddingRight: contentPadding.right,			marginLeft: '-' + contentPadding.left,			marginRight: '-' + contentPadding.right		} ); $toolbar.append(			$( ' ' ).addClass( 'mw-ui-button-group' ).append( makeButton( i18n.toolbarUndo, {					id: 'spriteedit-undo',					props: { disabled: true },					action: function {						$( this ).blur;						var hist = changes.pop;						revert( hist );						undoneChanges.push( hist );						$( '#spriteedit-redo' ).prop( 'disabled', false );					}				} ), makeButton( i18n.toolbarRedo, {					id: 'spriteedit-redo',					props: { disabled: true },					action: function {						$( this ).blur;						var hist = undoneChanges.pop;						$.each( hist, function { change( this.action, this.content, false, true ); } );						changes.push( hist );						if ( !undoneChanges.length ) {							$( this ).prop( 'disabled', true );						}						$.each( [ '#spriteedit-undo', '#spriteedit-save', '#spriteedit-summary', '#spriteedit-review-button' ], function { $( this ).prop( 'disabled', false ); } );					}				} )			),			$( ' ' ).addClass( 'mw-ui-button-group' ).append( makeButton( i18n.toolbarNewSection, { id: 'spriteedit-add-section' } ), makeButton( i18n.toolbarNewImage, { id: 'spriteedit-add-image' } ) ),			$( ' ' ).prop( 'id', 'spriteedit-toolbox' ).addClass( 'mw-ui-button' ).append( $( ' ' ).prop( {					disabled: true,					selected: true,					value: ''				} ).css( 'display', 'none' ).text( i18n.toolbarTools ) ),			makeButton( i18n.toolbarSave, { id: 'spriteedit-save', type: 'progressive', props: { disabled: true }, css: { right: contentPadding.right } } )		);		if ( !imageEditingSupported ) { $toolbar.find( '#spriteedit-add-image' ).prop( {				disabled: true,				title: i18n.browserActionNotSupported			} ).css( 'cursor', 'help' ); }		// Create tools var $toolbox = $toolbar.find( '#spriteedit-toolbox' ); $toolbox.append(			$( ' ' ).prop( { value: 'deprecate', title: i18n.toolbarToolDeprecateTip } ).text( i18n.toolbarToolDeprecate )		); var $barContainer = $( ' ' ).addClass( 'spriteedit-toolbar-container' ) .append( $toolbar ).prependTo( $doc ); if ( $docPrev.length ) { $doc.insertAfter( $docPrev ); } else { $doc.prependTo( $docParent ); }		// Set height now that everything is re-attached var toolbarHeight = $toolbar[0].getBoundingClientRect.height; $barContainer.height( toolbarHeight ); // Wait until everything else is done so the animation is smooth requestAnimationFrame( function {			var barTop = $barContainer[0].getBoundingClientRect.top;			if ( barTop > 0 ) {				$root.addClass( 'spriteedit-smoothscroll' );				scroll( 0, barTop + $win.scrollTop + 1 );			}		} ); /** Bind events **/ /* Outside interface events */ $( '#ca-view' ).find( 'a' ).on( 'click.spriteEdit', function( e ) {			close;			e.preventDefault;		} ); /* Toolbar events */ // Manually make the toolbar sticky if position:sticky isn't supported if ( !supports( 'position', 'sticky' ) ) { var fixedClass = 'spriteedit-toolbar-fixed'; var contentOffset = $content.offset.left + 1; $win.on( 'scroll.spriteEdit', $.throttle( 50, function { var fixed = $toolbar.hasClass( fixedClass ), scrollTop = $win.scrollTop, offset = $barContainer.offset.top; if ( !fixed && scrollTop >= offset ) { $toolbar.addClass( fixedClass ).css( 'left', contentOffset ); } else if ( fixed && scrollTop < offset ) { $toolbar.removeClass( fixedClass ).css( 'left', '' ); }			} ) );		}		$( '#spriteedit-add-section' ).on( 'click.spriteEdit', function {			$( this ).blur;			var $newHeading = $headingTemplate.clone;			change( 'insert', { $elem: $( ' ' ).addClass( 'spritedoc-section' ).prepend(					$newHeading,					$( '' ).addClass( 'spritedoc-boxes' )				), index: $( nearestSection ).index - 1, $parent: $doc }, true );			$newHeading.find( '.mw-headline' ).focus;		} ); $( '#spriteedit-add-image' ).on( 'click.spriteEdit', function {			$( ' ' )				.attr( { accept: 'image/*', multiple: true } )				.one( 'change.spriteEdit', function { insertSprites( this.files ); } ).click;			$( this ).blur;		} ); // Toolbox functions var toolNamespace = '.spriteEdit.spriteEditTool.spriteEditTool'; var tool; // Bind events for each tool's function $toolbox.on( 'change.spriteEdit', function {			tool = $toolbox.val;			$root.addClass( 'spriteedit-hidecontrols spriteedit-tool-' + tool );			switch ( tool ) {				case 'deprecate':					$doc.on( 'click' + toolNamespace + 'Deprecate', '.spritedoc-name > code', function { change( 'toggle deprecation', { $elem: $( this ) } ); } );				break;			}		} ); // Clear tool when clicking a toolbar button, the toolbox itself, or pressing escape var clearTool = function( e ) { if ( !$toolbox.val ) { return; }			$toolbox.val( '' ); $doc.off( '.spriteEditTool' ); $root.removeClass( 'spriteedit-hidecontrols spriteedit-tool-' + tool ); tool = null; // If clicking on the toolbox itself if ( e ) { e.preventDefault; $toolbox.blur; $win.focus; }		};		$toolbar.on( 'mouseup.spriteEdit', 'button', function {			clearTool;		} ); $toolbox.on( 'mousedown.spriteEdit', function( e ) {			if ( e.which == 1 && $toolbox.is( e.target ) ) {				clearTool( e );			}		} ); $( document ).on( 'keydown.spriteEdit', function( e ) {			// Esc			if ( e.keyCode === 27 ) {				clearTool( e );			}		} ); // Drag and drop functionality if ( dropSupported && imageEditingSupported ) { var dragTimeout, dragEnded; var endDrag = function { $root.removeClass( 'spriteedit-dragging' ); clearTimeout( dragTimeout ); clearTimeout( dropTimeout ); dragEnded = false; dropEnded = false; };			var isFile = function( e ) { var types = e.originalEvent.dataTransfer.types; return types.indexOf ? types.indexOf( 'Files' ) > -1 || types.indexOf( 'application/x-moz-file' ) > -1 : types.contains( 'Files' ); };			$win.on( 'dragenter.spriteEdit', function( e ) {				if ( !isFile( e ) ) {					return;				}				$root.addClass( 'spriteedit-dragging' );			} ).on( 'dragover.spriteEdit', function {				clearTimeout( dragTimeout );				dragEnded = false;			} ).on( 'dragleave.spriteEdit', function( e ) {				if ( !isFile( e ) ) {					return;				}				clearTimeout( dragTimeout );				dragEnded = true;				dragTimeout = setTimeout( function { if ( dragEnded ) { endDrag; }				}, 100 );			} );			var dropTimeout, dropEnded; $doc.on( 'dragenter.spriteEdit', '.spritedoc-section', function( e ) {				if ( !isFile( e ) ) {					return;				}				$doc.find( '.spriteedit-droptarget' ).not( this ).removeClass( 'spriteedit-droptarget' );				$( this ).addClass( 'spriteedit-droptarget' );			} ).on( 'dragover.spriteEdit', '.spritedoc-section', function( e ) {				clearTimeout( dropTimeout );				dropEnded = false;				e.originalEvent.dataTransfer.dropEffect = 'copy';				e.preventDefault;			} ).on( 'dragleave.spriteEdit', '.spritedoc-section', function( e ) {				if ( !isFile( e ) ) {					return;				}				clearTimeout( dropTimeout );				dropEnded = true;				dropTimeout = setTimeout( function { if ( dropEnded ) { $doc.find( '.spriteedit-droptarget' ).removeClass( 'spriteedit-droptarget' ); dropEnded = false; }				}, 100 );			} ).on( 'drop.spriteEdit', '.spritedoc-section', function( e ) {				if ( !isFile( e ) ) {					return;				}				$doc.find( '.spriteedit-droptarget' ).removeClass( 'spriteedit-droptarget' );				insertSprites( e.originalEvent.dataTransfer.files, this );				endDrag;				e.preventDefault;			} ); }		$( '#spriteedit-save' ).on( 'click.spriteEdit', function {			var $button = $( this );			$button.blur;			// Prevent saving and notify if there are duplicate names			if ( $doc.find( '.spriteedit-dupe' ).length ) {				mw.notify( i18n.dupeNamesNotice, { type: 'warn', autoHide: false } );				return;			}			// Prevent saving if button already pressed and still processing			if ( $button.hasClass( 'spriteedit-processing' ) ) {				return;			}			$button.addClass( 'spriteedit-processing' );			if ( $toolbar.hasClass( 'spriteedit-saveform-open' ) ) {				// If we know changes weren't made (by performing a diff),				// quit out, otherwise it's likely faster to just save and				// assume changes were made, than wait for the diff to be ready.				// It will just be a null edit if nothing was changed.				if ( !names.modified && !sheet.modified ) {					destroy( true );					return;				}				saveChanges( $( '#spriteedit-summary' ).val ); return; }			saveModules.done( function {				$toolbar.addClass( 'spriteedit-saveform-open' );				$button					.addClass( 'mw-ui-constructive' )					.removeClass( 'mw-ui-progressive spriteedit-processing' )					// Prevent accidental double-click saving					.css( 'pointer-events', 'none' );				if ( !$toolbar.find( '#spriteedit-saveform' ).length ) {					$( ' ' )						.attr( 'id', 'spriteedit-saveform' )						.css( 'margin-right', $( '#spriteedit-save' )[0].getBoundingClientRect.width )						.append( $( ' ' ).addClass( 'mw-ui-input' ).attr( {								id: 'spriteedit-summary',								name: 'wpSummary', // For autocomplete								placeholder: i18n.toolbarSummaryPlaceholder,								spellcheck: true							} ).byteLimit( 255 ), makeButton( i18n.toolbarReviewChanges, { id: 'spriteedit-review-button' } ) ).appendTo( $toolbar );				}				var openedToolbarHeight = $toolbar[0].getBoundingClientRect.height;				$toolbar					.outerHeight( toolbarHeight )					.redraw					.outerHeight( openedToolbarHeight )					.transitionEnd( function { $button.css( 'pointer-events', '' ); $barContainer.height( openedToolbarHeight ); $( '#spriteedit-summary' ).focus; // Do this after the transition so there is no stutter names.getDiff; sheet.stash; } );			} );		} );		$doc.on( 'keydown.spriteEdit', '#spriteedit-summary', function( e ) { // Anything but Enter if ( e.which !== 13 ) { return; }			$( this ).blur; $( '#spriteedit-save' ).click; e.preventDefault; } );		$doc.on( 'click.spriteEdit', '#spriteedit-review-button', function { var $button = $( this ); if ( $button.hasClass( 'spriteedit-processing' ) ) { return; }			$button.blur.addClass( 'spriteedit-processing' ); var changesPanel = panels.changes || panel(				'changes',				i18n.panelChangesTitle,				[					$( ' ' ).addClass( 'spriteedit-sheet-changes' ),					$( ' ' ).addClass( 'spriteedit-id-changes' )				]			); var $changesText = changesPanel.$text; $.when( names.getDiff, sheet.getData ).then( function( diff, sheetData ) {				var sheetChanges;				if ( !diff && !sheetData ) {					$changesText.text( i18n.panelChangesNoDiffFromCur );				} else {					if ( sheetData ) {						sheetChanges = $.Deferred;						var newSpritesheet = new Image;						newSpritesheet.onload = function {							$changesText.find( '.spriteedit-sheet-changes' ).append( $( ' ' ).text( i18n.panelChangesSheetTitle ), $( ' ' ).addClass( 'spriteedit-sheet-diff' ).append(									$( ' ' ).addClass( 'spriteedit-old-sheet' ).append( spritesheet ),									$( ' ' ).addClass( 'spriteedit-new-sheet' ).append( newSpritesheet )								) );							sheetChanges.resolve;						};						newSpritesheet.src = sheetData;					}					if ( diff ) {						$changesText.find( '.spriteedit-id-changes' ).append( $( ' ' ).text( i18n.panelChangesIdTitle ), $( ' ' ).append( diff ) );					}				}				$.when( sheetChanges ).done( function { $button.removeClass( 'spriteedit-processing' ); changesPanel.show; } );			}, function( code, data ) {				$button.removeClass( 'spriteedit-processing' );				handleError( code, data );			} ); } );		/* Edit control events */		$doc.on( 'click.spriteEdit', '.spriteedit-add-name > button', function { var $names = $( this ).closest( '.spritedoc-box' ).find( '.spritedoc-name' ); var $item = $( '' ).addClass( 'spritedoc-name' ); var $name = $( ' ' ).addClass( 'spriteedit-new' ) .attr( 'data-placeholder', i18n.namePlaceholder ); addControls( $item.append( $name ), 'name' ); change( 'insert', {				$elem: $item,				index: $names.length - 1,				$parent: $names.first.parent			}, true ); $name.focus; } );		$doc.on( 'focus.spriteEdit', '[contenteditable]', function { var $this = $( this ); if ( $root.hasClass( 'spriteedit-hidecontrols' ) ) { $this.blur; return; }			var text = $this.text; $this.attr( 'data-original-text', text ); if ( !changes.length ) { $this.one( 'keypress.spriteEdit', function {					$.each( [ '#spriteedit-save', '#spriteedit-summary', '#spriteedit-review-button' ], function { $( this ).prop( 'disabled', false ); } );				} );			}		} );		$doc.on( 'blur.spriteEdit', '[contenteditable]', function { if ( $root.hasClass( 'spriteedit-hidecontrols' ) ) { return; }			var $this = $( this ); var text = $this.text; var trimmedText = text.trim.replace( / +/g, ' ' ); var origText = $this.attr( 'data-original-text' ); $this.removeAttr( 'data-original-text' ).off( 'keypress.spriteEdit' ); if ( text !== trimmedText ) { text = trimmedText; $this.text( text ); }			if ( text === '' ) { var $remove, $parent; if ( $this.hasClass( 'mw-headline' ) ) { if ( $doc.find( '.spritedoc-section' ).length === 1 ) { change( 'text', {							$elem: $this,							oldText: origText,							text: i18n.sectionUncategorized						} ); return; } else { $remove = $this.closest( '.spritedoc-section' ); $parent = $doc; }				} else { var $names = $this.closest( '.spritedoc-names' ); if ( $names.find( '.spritedoc-name' ).length > 1 ) { $remove = $this.parent; $parent = $names; } else { $remove = $names.parent; $parent = $remove.parent; }				}				if ( $this.hasClass( 'spriteedit-new' ) ) { // Just pretend it never happened $remove.remove; change.discard; return; }				// Restore original text before deleting so undo works $this.text( origText ); change( 'delete', {					$elem: $remove,					index: $remove.index - 1,					$parent: $parent				} ); return; }			if ( text === origText ) { if ( !changes.length ) { $.each( [						'#spriteedit-save',						'#spriteedit-summary',						'#spriteedit-review-button'					], function {						$( this ).prop( 'disabled', true );					} ); }				return; }			if ( usedNames[text] ) { // Wait until after edit change, as it may move the element // which the tooltip should be anchored to				requestAnimationFrame( function {					tooltip( $this, i18n.dupeName );				} ); }			change( 'edit', {				$elem: $this,				oldText: origText,				text: text			} ); if ( $this.hasClass( 'spriteedit-new' ) ) { $this.removeClass( 'spriteedit-new' ).removeAttr( 'data-placeholder' ); }		} );		$doc.on( 'keypress.spriteEdit', '[contenteditable]', function( e ) { // Enter key if ( e.which === 13 ) { $( this ).blur; e.preventDefault; }		} );		// Make pastes plain text		$doc.on( 'paste.spriteEdit', '[contenteditable]', function { var $this = $( this ); var hasFocus = $this.has( ':focus' ); if ( !hasFocus ) { $this.focus; }			setTimeout( function {				var text = $this.text.replace( /\n/g, ' ' );				if ( $this.html !== $( '' ).text( text ).html ) {					$this.text( text );					if ( !hasFocus ) {						$this.blur;					}				}			}, 0 ); } );		var isText = function( e ) {			var types = e.originalEvent.dataTransfer.types;			return types.indexOf ? types.indexOf( 'text/plain' ) > -1 : types.contains( 'text/plain' );		};		$doc.on( 'dragenter.spriteEdit dragover.spriteEdit', '[contenteditable]', function( e ) { if ( !isText( e ) ) { return; }			e.preventDefault; } );		$doc.on( 'drop.spriteEdit', function( e ) { // Prevent default drop on anything but contenteditable // This prevents browsers dropping content into a nearby contenteditable, which doesn't			// trigger any kind of drop event on the contenteditable (because you didn't actually			// drop anything directly on it), thus making it impossible to handle it properly. if ( !$( e.target ).is( '[contenteditable]' ) ) { e.preventDefault; return; }			if ( !isText( e ) ) { return; }			var $this = $( e.target ); $this.focus; setTimeout( function {				var text = $this.text.replace( /\n/g, ' ' );				if ( $this.html !== $( '' ).text( text ).html ) {					$this.text( text );				}				$this.blur;			}, 0 ); } );		if ( imageEditingSupported ) {			$doc.on( 'click.spriteEdit', '.spritedoc-image', function { var $parent = $( this ); tooltip( $parent, [					makeButton( i18n.ctxReplaceImage, { type: 'progressive', css: { display: 'block', width: '100%' },						action: function { $( this ).blur; $( ' ' )								.attr( 'accept', 'image/*' ) .one( 'change', function {									tooltip.hide;									scaleImage( this.files[0] ).done( function( $img ) { change( 'replace image', {											$elem: $img,											$parent: $parent,											$oldImg: $parent.find( 'img' )										} ); } );								} ).click; }					} ),					makeButton( i18n.ctxDownloadImage, { css: { display: 'block', width: '100%' },						action: function { $( this ).blur; var url; var $box = $parent.parent; // Already an image, just pass on the URL if ( $box.hasClass( 'spriteedit-new' ) ) { url = $parent.find( '> img' ).attr( 'src' ); } else { // Individual sprite needs to be extracted from the spritesheet var width = settings.imageWidth; var height = settings.imageHeight; var posPx = posToPx( $box.data( 'pos' ) ); var imgCanv = getCanvas( 'image' ); imgCanv.clear; imgCanv.ctx.drawImage( spritesheet,									posPx.left, posPx.top, width, height,									0, 0, width, height								); url = imgCanv.canvas.toDataURL; }							var dlLink = $( '' ).attr( {								href: url,								download: $box.data( 'sort-key' ) + '.png'							} ).appendTo( 'body' ); dlLink[0].click; dlLink.remove; }					} ),					makeButton( i18n.ctxDeleteImage, { type: 'destructive', css: { display: 'block', width: '100%' },						action: function { tooltip.hide( function {								var $box = $parent.parent;								change( 'delete', { $elem: $box, $parent: $box.parent, index: $box.index - 1 } );							} );						}					} )				], true ); } );		}		/* Window events */		$win.on( 'resize.spriteEdit', function { var $dialog = $( '.spriteedit-dialog' ); if ( $dialog.length && $dialog.is( ':visible' ) ) { $dialog.css( { width: , height:  } ); $dialog.css( {					width: $dialog.width,					height: $dialog.height				} ); }		} );		var updateMouse = function( e ) {			mouse.moved = true;			mouse.x = e.clientX;			mouse.y = e.clientY;		};		// Only update mouse while sorting, dragging, or while over a handle		$doc.on( 'mouseenter.spriteEdit mousemove.spriteEdit', '.spriteedit-handle', function( e ) { if ( !sorting ) { updateMouse( e ); }		} );		$( document ).on( 'mousemove.spriteEdit', function( e ) { if ( sorting ) { updateMouse( e ); }		} ).on( 'dragover.spriteEdit', function( e ) { updateMouse( e.originalEvent ); } );		// Disable smooth scrolling once scrolling ends so it does not interfere with user scrolling.		$win.on( 'scroll.spriteEdit', $.debounce( 250, function {			$root.removeClass( 'spriteedit-smoothscroll' );		} ) );		$win.on( 'beforeunload.spriteEdit', function( e ) { if ( !$( '#spriteedit-save' ).is( '[disabled]' ) ) { e.preventDefault; }		} );	};	/** Editor functions **/	/**	 * Closes the editor	 *	 * If there are no changes, destroys the editor immediately.	 * If there are changes, opens a panel asking for confirmation first.	 *	 * "state" is what triggered the editor to close (e.g. from history navigation)	 */	var close = function( state ) {		if ( !$root.hasClass( 'spriteedit-enabled' ) || $( '#spriteedit-save' ).is( '[disabled]' ) ) {			destroy( true, state === 'history' );		} else {			var discardPanel = panels.discard || panel( 'discard', i18n.panelDiscardTitle, $( ' ' ).text( i18n.panelDiscardText ), { right: [ { text: i18n.panelDiscardContinue, config: { action: function { discardPanel.hide; }					} },					{ text: i18n.panelDiscardDiscard, config: { type: 'destructive', action: function { discardPanel.hide( function {								destroy( true, state === 'history' );							} ); }					} }				] }			);			discardPanel.show;		}	};	/**	 * Construct a wiki diff from an API request	 *	 * "data" is the API response.	 * Returns a jQuery object containing the diff table, an error message	 * if something went wrong, or nothing if the diff is empty.	 */	var makeDiff = function( data ) {		if ( !data || !data.query || !data.query.pages ) {			return i18n.genericError;		}		var pages = data.query.pages;		var page = pages[idsPageId];		if ( !page ) {			return i18n.diffErrorMissingPage;		}		var diff = page.revisions[0].diff['*'];		if ( diff === undefined ) {			return i18n.diffError;		}		if ( !diff.length ) {			return;		}		return $( ' ' ).addClass( 'diff' ).append( $( ' ' ).addClass( 'diff-marker' ), $( ' ' ).addClass( 'diff-content' ), $( ' ' ).addClass( 'diff-marker' ), $( ' ' ).addClass( 'diff-content' ), $( ' ' ).html( diff ) );	};	var names = ( function { var promises = {}; /**		 * Create a deferred object for the request type *		 * If a deferred of this type already exists, or names is not * modified, returns false. *		 * Otherwise, adds the deferred's promise to the list, and returns * the deferred. */		var makeDeferred = function( type ) { if ( promises[type] ) { return false; }			var deferred = $.Deferred; promises[type] = deferred.promise; if ( !names.modified ) { deferred.resolve; return false; }			return deferred; };		return { /**			 * Invalidates all promises and sets the modified state, if specified */			invalidate: function( modified ) { promises = {}; if ( modified !== undefined ) { names.modified = modified; }			},			/**			 * Returns the names Lua table */			getTable: function { var deferred = makeDeferred( 'table' ); if ( !deferred ) { return promises.table; }				sheet.updatePositions.done( function {					var $sections = $doc.find( '.spritedoc-section' );					var sectionIds = [];					var getSectionId = ( function { var id = 0; return function { if ( id < sectionIds.length ) { sectionIds.sort( function( a, b ) {									return a - b;								} ); $.each( sectionIds, function( _, v ) {									if ( v - id > 1 ) {										return false;									}									id = v;								} ); }							id++; sectionIds.push( id ); return id; };					} );					$sections.each( function { var id = $( this ).data( 'section-id' ); if ( id !== undefined ) { sectionIds.push( id ); }					} );					var headingRows = [];					var ids = [];					$sections.each( function { var $section = $( this ); var sectionId = $section.data( 'section-id' ) || getSectionId; var sectionName = $section.find( '.mw-headline' ).text.replace( /\s+/g, ' ' ); headingRows.push(							'{ ' + luaStringQuote( sectionName ) + ', ' + luaKeyQuote( i18n.luaKeyId ) + ' = ' + sectionId + ' },'						); $section.find( '.spritedoc-box' ).each( function {							var $box = $( this );							var pos = $box.data( 'pos' );							if ( pos === undefined ) {								pos = $box.data( 'new-pos' );							}							$box.find( '.spritedoc-name' ).find( 'code' ).each( function { var $this = $( this ); var id = $this.text.replace( /\s+/g, ' ' ); ids.push( {									sortKey: id.toLowerCase,									id: id,									pos: pos,									section: sectionId,									deprecated: $this.hasClass( 'spritedoc-deprecated' )								} ); } );						} );					} );					ids.sort( function( a, b ) { return a.sortKey > b.sortKey ? 1 : -1;					} );					var idsRows = [];					$.each( ids, function { var idData = [ luaKeyQuote( i18n.luaKeyPos ) + ' = ' + this.pos, luaKeyQuote( i18n.luaKeySection ) + ' = ' + this.section ];						if ( this.deprecated ) { idData.push( luaKeyQuote( i18n.luaKeyDeprecated ) + ' = true' ); }						idsRows.push(							'[' + luaStringQuote( this.id ) + '] = ' +							'{ ' + idData.join( ', ' ) + ' },'						); } );					deferred.resolve( [ 'return {', '	' + luaKeyQuote( i18n.luaKeySections ) + ' = {', '		' + headingRows.join( '\n\t\t' ), '	},',						'	' + luaKeyQuote( i18n.luaKeyIds ) + ' = {', '		' + idsRows.join( '\n\t\t' ), '	}',						'}'					].join( '\n' ) );				} ); return promises.table; },			/**			 * Sets the names Lua table to the specified content */			setTable: function( table ) { names.invalidate( true ); promises.table = $.Deferred.resolve( table ).promise; },			/**			 * Requests a diff of the names Lua table against * the current revisions content */			getDiff: function { var deferred = makeDeferred( 'diff' ); if ( !deferred ) { return promises.diff; }				names.getTable.then( function( table ) {					return retryableRequest( function { return new mw.Api( {							ajax: { contentType: 'multipart/form-data' }						} ).post( {							action: 'query',							prop: 'revisions',							pageids: idsPageId,							rvprop: '',							rvdifftotext: table,							rvlimit: 1,							utf8: true						} ); } );				} ).then( function( data ) {					var diff = makeDiff( data );					names.modified = !!diff;					deferred.resolve( diff );				}, function( code, data ) {					deferred.reject( code, data );					promises.diff = null;				} ); return promises.diff; },			/**			 * Saves the names table *			 * "summary" is the edit summary for the edit. */			save: function( summary ) { var deferred = makeDeferred( 'save' ); if ( !deferred ) { return promises.save; }				names.getTable.then( function( table ) {					// TODO: Check if edit actually succeeded on failure or null edit					return retryableRequest( function { return new mw.Api( {							ajax: { contentType: 'multipart/form-data' }						} ).postWithToken( 'edit', {							action: 'edit',							nocreate: true,							pageid: idsPageId,							text: table,							basetimestamp: $doc.data( 'idstimestamp' ),							summary: summary,							utf8: true						} ); } );				} ).then( deferred.resolve, function( code, data ) {					deferred.reject( code, data );					promises.save = null;				} ); return promises.save; }		};	} );	var sheet = ( function { var promises = {}; /**		 * Create a deferred object for the request type *		 * If a deferred of this type already exists, or the sheet is not * modified, returns false. *		 * Otherwise, adds the deferred's promise to the list, and returns * the deferred. */		var makeDeferred = function( type ) { if ( promises[type] ) { return false; }			var deferred = $.Deferred; promises[type] = deferred.promise; if ( !sheet.modified ) { deferred.resolve; return false; }			return deferred; };		return { /**			 * Invalidates all promises and sets the modified state, if specified */			invalidate: function( modified ) { promises = {}; if ( modified !== undefined ) { sheet.modified = modified; }			},			/**			 * Invalidates just the stash's promise */			invalidateStash: function { promises.stash = null; },			/**			 * Updates the potential position information * for any new images, and resizes the canvas */			updatePositions: function { var deferred = makeDeferred( 'pos' ); if ( !deferred ) { return promises.pos; }				var lastPos = $doc.data( 'pos' ); var usedPos = {}; usedPos[lastPos] = true; var newImgs = []; $doc.find( '.spritedoc-box' ).each( function {					var $box = $( this );					var pos = $box.data( 'pos' );					if ( pos === undefined ) {						newImgs.push( $box );					} else {						usedPos[pos] = true;						if ( pos > lastPos ) {							lastPos = pos;						}					}				} ); if ( newImgs.length ) { var unusedPos = []; for ( var i = 1; i <= lastPos; i++ ) { if ( !usedPos[i] ) { unusedPos.push( i ); }					}					newImgs.forEach( function( $box ) {						$box.data( 'new-pos', unusedPos.length ? unusedPos.shift : ++lastPos );					} ); if ( !unusedPos.length ) { var imagesPerRow = settings.sheetWidth / settings.imageWidth; settings.sheetHeight = Math.ceil( lastPos / imagesPerRow ) * settings.imageHeight; getCanvas( 'sheet' ).resize; }				}				deferred.resolve; return promises.pos; },			/**			 * Draws the new sheet and returns it as a data URL */			getData: function { var deferred = makeDeferred( 'sheet' ); if ( !deferred ) { return promises.sheet; }				$.when( sheet.updatePositions, $.when.apply( null, loadingImages ) ).then( function {					var sheetCanvas = getCanvas( 'sheet' );					sheetCanvas.clear;					sheetCanvas.ctx.drawImage( spritesheet, 0, 0 );					$doc.find( '.spriteedit-new' ).each( function { var $box = $( this ); var img = $box.find( 'img' )[0]; var pos = $box.data( 'pos' ); if ( pos === undefined ) { pos = $box.data( 'new-pos' ); }						var posPx = posToPx( pos ); sheetCanvas.ctx.clearRect(							posPx.left,							posPx.top,							settings.imageWidth,							settings.imageHeight						); sheetCanvas.ctx.drawImage( img, posPx.left, posPx.top ); } );					deferred.resolve( sheetCanvas.canvas.toDataURL );					loadingImages = [];				}, function {					deferred.reject;					promises.sheet = null;				} ); return promises.sheet; },			/**			 * Stashes the sheet to the server */			stash: function { var deferred = makeDeferred( 'stash' ); if ( !deferred ) { return promises.stash; }				sheet.getData.then( function( sheetData ) {					var sheetByteString = atob( sheetData.split( ',' )[1] );					var sheetByteStringLen = sheetByteString.length;					var buffer = new ArrayBuffer( sheetByteStringLen );					var intArray = new Uint8Array( buffer );					for ( var i = 0; i < sheetByteStringLen; i++) {						intArray[i] = sheetByteString.charCodeAt( i );					}					var sheetBytes = new Blob( [buffer], { type: 'image/png' } );					return retryableRequest( function { return new mw.Api( {							ajax: { contentType: 'multipart/form-data' }						} ).postWithToken( 'edit', {							action: 'upload',							stash: true,							ignorewarnings: true,							filename: $doc.data( 'spritesheet' ),							file: sheetBytes						} ); } );				} ).then( function( data ) {					deferred.resolve( data.upload.filekey );				}, function( code, data ) {					deferred.reject( code, data );					promises.stash = null;				} ); return promises.stash; },			/**			 * Commits the stash to the server *			 * If the request fails, will re-stash the image and commit it, once. * 			 * "summary" is the edit summary for the upload. * "retried" is a boolean stating whether the upload has * already been retried. */			save: function( summary, retried ) { var deferred = makeDeferred( 'save' ); if ( !deferred ) { return promises.save; }				sheet.stash.then( function( key ) {					// TODO: Check if upload actually succeeded on failure					return retryableRequest( function { return new mw.Api.postWithToken( 'edit', {							action: 'upload',							ignorewarnings: true,							comment: summary,							filename: $doc.data( 'spritesheet' ),							filekey: key						} ); } );				} ).then( deferred.resolve, function( code, data ) {					promises.save = null;					if ( retried ) {						if ( code === 'stashedfilenotfound' ) {							sheet.invalidateStash;						}						deferred.reject( code, data );					} else {						sheet.invalidateStash;						sheet.save( summary, true );					}				} ); return promises.save; }		};	} );	/**	 * Performs a save of the ID changes and/or spritesheet changes	 *	 * If there are changes and everything works out, the editor closes, the current	 * page is purged, the timestamp is updated (for another edit in this session),	 * and a success message is displayed.	 * If there aren't changes, the editor will silently close, as if a null edit was performed	 * (which if the diff wasn't ready in time, there will have been).	 * In the event of an edit conflict, a manual resolution panel will be displayed.	 * Otherwise, whatever error occurred will be displayed.	 *	 * "summary" is the text from the summary field.	 * "refresh" is a boolean, which when true will cause the sprite documentation	 * to be reparsed after saving (e.g. in the event of an edit conflict).	 */	var saveChanges = function( summary, refresh ) {		var idsEdit, sheetEdit;		if ( names.modified ) {			// Wait for image upload before uploading text idsEdit = sheet.stash.then( function {				return names.save( summary );			} ).then( function( data ) {				// Null edit, nothing to do here				if ( data.edit.nochange === '' ) {					return;				}				$doc.data( 'idstimestamp', fixTimestamp( data.edit.newtimestamp ) );				// Purge this page so the changes show up immediately				retryableRequest( function { return new mw.Api.get( {						action: 'purge',						pageids: mw.config.get( 'wgArticleId' )					} ); } );			}, handleSaveError ); }		if ( sheet.modified ) { sheetEdit = sheet.save( summary ).fail( handleSaveError ); }		$.when( idsEdit, sheetEdit ).done( function {			var newContent;			if ( refresh ) {				newContent = retryableRequest( function { return parseApi.get( {						title: mw.config.get( 'wgPageName' ),						text: $( '' ).html( $.parseHTML( $doc.attr( 'data-refreshtext' ) ) ).html					} ); } );			}			$.when( newContent ).done( function( data ) { if ( refresh ) { $doc.html( data.parse.text['*'] ); }			} ).always( function { destroy; mw.hook( 'postEdit' ).fire( { message: i18n.changesSavedNotice } ); } );		} );	};	/**	 * Handles special case errors that occur when saving (AKA, handleError with edit conflicts) *	 * If there's an edit conflict, this will be display a barely human-usable edit conflict * panel, where the user may manually merge the raw lua table changes. Sprite edit conflict * merging is not supported (because image uploading doesn't implement edit conflicts, for one). * Otherwise, passes it on to handleError. *	 * "code" and "data" are the standard variables returned by a mw.Api promise rejection. */	var handleSaveError = function( code, data ) { if ( code !== 'editconflict' ) { $( '#spriteedit-save' ).removeClass( 'spriteedit-processing' ); handleError( code, data ); return; }		var conflictPanel = panels.conflict || panel(			'conflict',			i18n.panelConflictTitle,			$( ' ' ).text( i18n.panelConflictText ),			{				left: { text: i18n.panelConflictReview, config: {					id: 'review-conflict-changes',					action: function {						var $button = $( this );						if ( $button.hasClass( 'spriteedit-processing' ) ) {							return;						}						$button.blur.addClass( 'spriteedit-processing' );						var changesPanel = panels.ecchanges || panel( 'ecchanges', i18n.panelEcchangesTitle, $( ' ' ).addClass( 'spriteedit-id-changes' ), { right: { text: i18n.panelEcchangesReturn, config: { id: 'spriteedit-return-edit', type: 'progressive', action: function { conflictPanel.show; }							} } }						);						names.setTable( conflictPanel.$text.find( 'textarea:first' ).val );						names.getDiff.then( function( diff ) { changesPanel.clean; if ( !diff ) { diff = i18n.panelChangesNoDiffFromCur; }							changesPanel.$text.find( '.spriteedit-id-changes' ).append( diff ); changesPanel.show; }, function( code, data ) { $button.removeClass( 'spriteedit-processing' ); handleError( code, data ); } );					}				} },				right: { text: i18n.panelConflictSave, config: {					id: 'save-conflict',					type: 'constructive',					action: function {						var $button = $( this );						if ( $button.hasClass( 'spriteedit-processing' ) ) {							return;						}						$button.blur.addClass( 'spriteedit-processing' );						names.setTable( conflictPanel.$text.find( 'textarea:first' ).val );						saveChanges( $( '#spriteedit-summary' ).val, true );					}				} }			},			function {				this.$actions.find( 'button' ).removeClass( 'spriteedit-processing' );			}		); $.when(			names.getTable,			names.getDiff,			retryableRequest( function { return revisionsApi.get( { pageids: idsPageId } ); } )		).then( function( table, diff, curTextData ) {			var opt = mw.user.options.get( [ 'rows', 'cols' ] );			var $textbox = $( ' ' ).addClass( 'mw-ui-input' ).prop( { rows: opt.rows, cols: opt.cols } );			var $curText = $( ' ' ).append( $textbox.clone.val( curTextData.query.pages[idsPageId].revisions[0]['*'] ) );			var $oldText = $( ' ' ).append( $textbox.clone.prop( 'readonly', true ).val( table ) );			var $diff = $( ' ' ).append( diff );			conflictPanel.$text				.append( $( ' ' ).text( i18n.panelConflictCurText ) )				.append( $curText )				.append( $diff )				.append( $( ' ' ).text( i18n.panelConflictYourText ) )				.append( $oldText );			conflictPanel.show;		}, function( code, data ) {			$( '#spriteedit-save' ).removeClass( 'spriteedit-processing' );			handleError( code, data );		} ); };	/**	 * Converts a position to pixel co-ordinates on the sheet */	var posToPx = function( pos ) { pos -= 1; var imagesPerRow = settings.sheetWidth / settings.imageWidth; return { left: pos % imagesPerRow * settings.imageWidth, top: Math.floor( pos / imagesPerRow ) * settings.imageHeight };	};	/**	 * Inserts new images into the editor *	 * A box is created for the new image, with the name set to the file's name (minus extension). * The box is inserted into the nearest section and then sorted to the correct location. * Any file that doesn't match the image/* mime type is ignored. *	 * "files" is a "FileList" (or an array of "File" objects) from a file input or drop. * "section" is an Element which is the section to place the sprites in. Defaults to	 * the nearestSection */	var insertSprites = function( files, section ) { var $parent = $( section || nearestSection ).find( '.spritedoc-boxes' ); $.each( files, function {			if ( !this.type.match( /^image\// ) ) {				return;			}			var $newBox = $boxTemplate.clone;			$newBox.find( 'code' ).text( this.name.trim.replace( /\.[^\.]+$/, '' ) );			scaleImage( this ).done( function( $img ) { $newBox.find( '.spritedoc-image' ).html( $img ); } );			var name = $newBox.find( '.spritedoc-name' ).text;			$newBox.attr( 'data-sort-key', name );			var index = getAlphaIndex( name, undefined, $parent );			change( 'insert', { $elem: $newBox, index: index - 1, $parent: $parent } );		} );	};	/**	 * Constructs (or retrieves) a canvas for a particular purpose *	 * Either for image scaling, or spritesheet creation. *	 * Returns an object containing the canvas, its context, * and some convenience functions for clearing the canvas * and for updating its dimensions. *	 * "type" is the canvas type ("image" or "sheet"). */	var getCanvas = ( function {		var canvases = {};		return function( type ) {			if ( canvases[type] ) {				return canvases[type];			}			var $canvas = $( ' ' ).attr( { width: settings[type + 'Width'], height: settings[type + 'Height'] } ).appendTo( $doc );			var canvas = $canvas[0];			var ctx = canvas.getContext( '2d' );			var funcs = {				canvas: canvas,				ctx: ctx,				resize: function {					$canvas.attr( { width: settings[type + 'Width'], height: settings[type + 'Height'] } );				},				clear: function {					ctx.clearRect( 0, 0, canvas.width, canvas.height );				}			};			canvases[type] = funcs;			return funcs;		};	} ); /**	 * Scales an image down to the correct size (if necessary) *	 * Performs only a basic low quality scaling, ignoring the original image's	 * aspect ratio. * Also performs a "scale" if the image isn't a png, in essence converting it to one. *	 * Returns a promise which will contain a jQuery object containing a new image element * the url of which is either a object URL or data URL of the scaled image. */	var scaleImage = ( function {		var scaler;		return function( file ) {			var deferred = $.Deferred;			var img = new Image;			img.onload = function {				if ( file.type === 'image/png' && img.width === settings.imageWidth && img.height === settings.imageHeight ) {					// No scaling necessary					deferred.resolve( $( img ) );					return;				}				if ( !scaler ) {					scaler = getCanvas( 'image' );				}				scaler.clear;				scaler.ctx.drawImage( img, 0, 0, settings.imageWidth, settings.imageHeight );				URL.revokeObjectURL( img.src );				var scaledImg = new Image;				scaledImg.onload = function {					deferred.resolve( $( scaledImg ) );				};				scaledImg.src = scaler.canvas.toDataURL;			};			img.src = URL.createObjectURL( file );			loadingImages.push( deferred.promise );			return deferred.promise;		};	} ); /**	 * Creates panels to display in a dialog window *	 * If this is the first panel, the dialog window is created. * Panels are stored in the "panels" object, which should be checked for * for panel id prior to calling this function to create a new panel, * so duplicates are not made. * E.g: `var myPanel = panels.myPanel || panel( 'myPanel', ... );` *	 * Returns the panel object for the new panel (or the currently displayed	 * panel if called with no arguments). * The panel object contains jQuery objects of the panel's parts, and methods * for controlling the panel/dialog window. */	var panel = function( id, title, content, actions, onShow, cached ) { var $overlay, $dialog = $( '.spriteedit-dialog' ); if ( !id ) { return panels[$dialog.data( 'active-panel' )]; }		var thisPanel = panels[id]; if ( thisPanel ) { return thisPanel; }		if ( !$dialog.length ) { $overlay = $( ' ' ).addClass( 'spriteedit-dialog-overlay' ).css( 'display', 'none' ); $dialog = $( ' ' ).addClass( 'spriteedit-dialog' ).append(				makeButton( '×', { id: 'spriteedit-dialog-close', props: { title: i18n.panelCloseTip }, action: function { panel.hide; }				} )			).appendTo( $overlay ); }		if ( content && !Array.isArray( content ) ) { content = [ content ]; }		var $panel = $( ' ' ) .prop( 'id', 'spriteedit-dialog-' + id ) .addClass( 'spriteedit-dialog-panel' ); var $title = $( ' ' ).addClass( 'spriteedit-dialog-title' ).text( title ).appendTo( $panel ); var $text = $( ' ' ).addClass( 'spriteedit-dialog-text' ).appendTo( $panel ); if ( content ) { $text.append( content ); // Keep content as the inital HTML for resetting content = $text.html; }		var $actions; if ( actions ) { $actions = $( ' ' ).addClass( 'spriteedit-dialog-actions' ).appendTo( $panel ); var $leftActions = $( ' ' ).appendTo( $actions ); var $rightActions = $( ' ' ).css( 'float', 'right' ).appendTo( $actions ); var addButtons = function( buttons, right ) { if ( !buttons ) { return; }				var $area = right ? $rightActions : $leftActions; if ( !Array.isArray( buttons ) ) { buttons = [ buttons ]; }				$.each( buttons, function {					$area.append( makeButton( this.text, this.config ) );				} ); };			addButtons( actions.left ); addButtons( actions.right, true ); }		$dialog.append( $panel ); if ( $overlay ) { $doc.append( $overlay ); } else { $overlay = $dialog.parent; }		$overlay.show; var titleHeight = $title.innerHeight; var actionsHeight; if ( actions ) { actionsHeight = $actions.innerHeight; }		$panel.css( {			paddingTop: titleHeight,			paddingBottom: actionsHeight		} ); $title.css( 'margin-top', -titleHeight ); if ( actions ) { $actions.css( 'margin-bottom', -actionsHeight ); }		if ( $overlay.css( 'opacity' ) === '0' ) { $overlay.hide; }		$panel.hide; thisPanel = panels[id] = { $panel: $panel, $title: $title, $text: $text, $actions: $actions, show: function( callback ) { $dialog.css( { width: , height: , transform: 'none', transition: 'none' } ); var prevPanel; if ( $overlay.css( 'opacity' ) === '1' ) { prevPanel = panel; // Remember to cleanup previous panel when the dialog is closed if ( prevPanel && !prevPanel.cached ) { prevPanel.cleanup = true; }				}				var oldRect; if ( prevPanel ) { oldRect = $dialog[0].getBoundingClientRect; prevPanel.$panel.hide; }				$overlay.css( 'display', '' ); $panel.css( 'display', '' ); var newRect = $dialog[0].getBoundingClientRect; $dialog.css( 'transform',  ).redraw.css( 'transition',  ); $dialog.transitionEnd( function {					if ( onShow ) {						onShow.call( thisPanel );					}					if ( callback ) {						callback.call( thisPanel );					}				} ); if ( prevPanel ) { if ( oldRect.width === newRect.width && oldRect.height === newRect.height ) { // No transition to be made $dialog.css( {							width: newRect.width,							height: newRect.height						} ); $dialog.trigger( 'transitionend' ); } else { $panel.css( 'display', 'none' ); $dialog.css( {							width: oldRect.width,							height: oldRect.height						} ); $dialog.redraw; $dialog.css( {							width: newRect.width,							height: newRect.height						} ); $dialog.transitionEnd( function {							panelShown = true;							$panel.css( 'display', '' );						} ); // Make sure the panel gets displayed var panelShown; setTimeout( function {							if ( panelShown ) {								return;							}							$dialog.trigger( 'transitionend' );						}, 1000 ); }				} else { $overlay.css( 'opacity', 1 ); $dialog .addClass( 'spriteedit-elastic' ) .css( {							transform: 'scale(1)',							width: newRect.width,							height: newRect.height						} ) .transitionEnd( function {							$dialog.removeClass( 'spriteedit-elastic' );						} ); }				$dialog.data( 'active-panel', id ); return this; },			hide: function( callback ) { if ( !$overlay.is( ':visible' ) ) { return this; }				$dialog.css( 'transform', 'scale(0)' ); $overlay.css( 'opacity', 0 ).transitionEnd( function {					// Reset scrollbar BEFORE hiding					$text.scrollLeft( 0 );					$text.scrollTop( 0 );					$overlay.css( 'display', 'none' );					thisPanel.$panel.css( 'display', 'none' );					if ( !cached ) {						thisPanel.cleanup = true;					}					$.each( panels, function { if ( this.cleanup ) { this.clean; }					} );					if ( callback ) {						callback.call( thisPanel );					}				} ); return this; },			clean: function { $text.empty; if ( content ) { $text.append( content ); }				thisPanel.cleanup = false; },			onShow: onShow, cached: cached };		return thisPanel; };	/**	 * Creates a simple tooltip *	 * Used to create a small tooltip anchored to an element. * Only a single tooltip can exist at a time (opening a new one will close the old) * and clicking anywhere but the tooltip itself will close it. *	 * In the main function: * "$elem" is a jQuery object which the tooltip should be anchored to. * "content" is the content to go in the tooltip, and can be in whatever format can * go into jQuery.append (jQuery objects, elements, HTML strings, etc.). * "horizontal" is a boolean determining if the tooltip should open horizontally or vertically * relative to its anchor. * "callback" is a function called once the tooltip finishes its opening animation. *	 * In the tooltip.hide function: * "callback" is a function called once the tooltip finishes its closing animation. */	var tooltip = ( function {		var $tooltip = $, $anchor = $;		$win.click( function( e ) { if (				e.which === 1 &&				$tooltip.length && !$tooltip.has( e.target ).length &&				$tooltip.css( 'opacity' ) === '1'			) { func.hide; }		} );		var func = function( $elem, content, horizontal, callback ) {			if ( $tooltip.length ) {				if ( $elem.is( $anchor ) ) {					func.hide;					return;				}				func.hide;			}			$anchor = $elem;			$tooltip = $( ' ' ).addClass( 'spriteedit-tooltip' ).append( $( ' ' ).addClass( 'spriteedit-tooltip-text' ).append( content ), $( ' ' ).addClass( 'spriteedit-tooltip-arrow' ) ).appendTo( $doc );			var anchorPos = $anchor.offset;			var docPos = $doc.offset;			if ( horizontal ) {				$tooltip.addClass( 'spriteedit-tooltip-horizontal' ).css( { top: anchorPos.top - docPos.top + $anchor.outerHeight / 2, left: anchorPos.left - docPos.left - $tooltip.outerWidth } );			} else {				$tooltip.css( { top: anchorPos.top - docPos.top - $tooltip.outerHeight, left: anchorPos.left - docPos.left + $anchor.outerWidth / 2 } );			}			$tooltip.addClass( 'spriteedit-elastic' ).css( { opacity: 1, transform: 'scale(1)' } ).transitionEnd( function { $( this ).removeClass( 'spriteedit-elastic' ); if ( callback ) { callback.call( this ); }			} );		};		func.hide = function( callback ) {			if ( !$tooltip.length ) {				return;			}			$tooltip.off( 'transitionend.spriteEdit' ).css( { opacity: 0, transform: 'scale(0)' } ).transitionEnd( function { $( this ).remove; if ( callback ) { callback.call( this ); }			} );			$tooltip = $anchor = $;		};		return func;	} ); /**	 * Makes a set of elements sortable by dragging them *	 * The elements can either be dragged around to be sorted within or between * each set manually or can be sorted in each set automatically, with dragging * only being used to move them between sets. *	 * The "options" object contains: * "selectors" is a string containing the selector of the set of elements to enable sorting, * or an object containing containing additional selections to define the sortable element's parent * and the sortable elements container (which elements can be sorted between). * "handle" is a string containing the selector to find the element which the handle is a child of, * in relation to the sortable element. Set if the handle is not a direct child of the sortable * element. * "vertical" is a boolean determining if the elements should only be able to be moved vertically. * "autoSort" is a boolean determining if the elements should be sorted within their container * automatically, only allowing elements to be manually moved between containers. * "sortStart" is a callback function called after the placeholder and ghost elements are created, * but prior to sorting actually beginning. "this" is set to the ghost element, and the first * argument is set to the placeholder element if there is one. * "sortEnd" is a callback function called after the element has been sorted, but prior to the * placeholder and ghost elements being destroyed. Variables are set the same as "sortStart". */	var makeSortable = function( options ) { var selectors = options.selectors; var handle = options.handle || ''; var vertical = options.vertical; var autoSort = options.autoSort; var selector = selectors; var $ghost = $, $placeholder = $, $hover = $, $hoverParent = $; if ( typeof selectors !== 'string' ) { selector = selectors.parent + ' > ' + selectors.elem; }		if ( pointerEventsSupported ) { if ( autoSort ) { $doc.on( 'mouseenter.spriteEdit', selectors.container, function {					if ( $ghost.length ) {						$hoverParent = $( this ).css( 'outline', '1px dashed #000' );					}				} ).on( 'mouseleave.spriteEdit', selectors.container, function {					if ( $ghost.length ) {						$hoverParent.css( 'outline', '' );						$hoverParent = $;					}				} ); } else { $doc.on( 'mouseenter.spriteEdit', selector, function {					if ( $ghost.length && !$( this ).is( $placeholder ) ) {						$hover = $( this );					}				} ).on( 'mouseleave.spriteEdit', selector, function {					if ( $ghost.length ) {						$hover = $;					}				} ); }		}		$doc.on( 'mousedown.spriteEdit', selector + ' ' + handle + ' > .spriteedit-handle', function( e ) {			if ( e.which !== 1 ) {				return;			}			if ( handle ) {				$ghost = $( this ).closest( selector );			} else {				$ghost = $( this ).parent;			}			if ( $ghost.find( '.spriteedit-new' ).length && $ghost.text.trim === '' ) {				$ghost = $;				return;			}			tooltip.hide;			// Keep the documentation from getting smaller to allow for overscroll			$doc.css( 'min-height', $doc[0].getBoundingClientRect.height );			var ghostElem = $ghost[0];			if ( !autoSort ) {				// We don't want to clone all the content, just the parent element				$placeholder = $( '<' + ghostElem.nodeName + '>' )					.addClass( ghostElem.className + ' spriteedit-placeholder' )					.insertAfter( $ghost );			}			// Calculate cursor offset percentage to apply			// after the ghost is resized to its correct size var ghostRect = ghostElem.getBoundingClientRect; var cursorOffset = { top: ( ghostRect.top - e.clientY ) / ghostRect.height, left: ( ghostRect.left - e.clientX ) / ghostRect.width };			$ghost.addClass( 'spriteedit-ghost' ).css( {				top: e.clientY,				left: e.clientX			} ); // Apply offsets var newGhostRect = ghostElem.getBoundingClientRect; $ghost.css( {				marginTop: newGhostRect.height * cursorOffset.top,				marginLeft: newGhostRect.width * cursorOffset.left			} ); if ( options.sortStart ) { options.sortStart.call( ghostElem, $placeholder[0] ); }			// Must be set after callback for collapsing. if ( !autoSort ) { $placeholder.css( 'min-height', ghostElem.getBoundingClientRect.height ); }			$ghost.parent.mouseenter; sorting = true; $root.addClass( 'spriteedit-sorting spriteedit-hidecontrols' ); requestAnimationFrame( mouseMove ); e.preventDefault; } );		var mouseMove = function {			if ( !$ghost.length ) {				return;			}			requestAnimationFrame( mouseMove );			if ( !mouse.moved ) {				return;			}			mouse.moved = false;			var pos = { top: mouse.y };			if ( !vertical ) {				pos.left = mouse.x;			}			$ghost.css( pos );			if ( !pointerEventsSupported ) {				// Emulate pointer-events:none				$ghost.css( 'visibility', 'hidden' );				var $nearest = $( document.elementFromPoint( mouse.x, mouse.y ) );				if ( autoSort ) {					$hoverParent.css( 'outline',  );					$hoverParent = $nearest.closest( selectors.container );					$hoverParent.css( 'outline', '1px dashed #000' );				} else {					$hover = $nearest.closest( selector );				}				$ghost.css( 'visibility',  );			}			if ( $hover.length ) {				var side = 'Before';				if ( $hover.index > $placeholder.index ) {					side = 'After';				}				$placeholder['insert' + side]( $hover );				$hover = $; }		};		$( document ).on( 'mouseup.spriteEdit', function( e ) {			if ( e.which !== 1 || !$ghost.length ) {				return;			}			var index = -1;			if ( autoSort ) {				if ( $hoverParent.length && !$ghost.closest( selectors.container ).is( $hoverParent ) ) {					var text = $ghost.attr( 'data-sort-key' ) || $ghost.text;					index = getAlphaIndex( text, undefined, $hoverParent.find( selectors.parent ) );				}			} else {				index = $placeholder.index;			}			if ( index > -1 && (					index - 1 !== $ghost.index ||					autoSort && $hoverParent.length &&					!$ghost.closest( selectors.container ).is( $hoverParent )				) ) {				// If the last name is moved, delete its box				if ( $ghost.hasClass( 'spritedoc-name' ) && !$ghost.siblings.length ) {					var $box = $ghost.closest( selectors.container );					change( 'delete', { $elem: $box, index: $box.index - 1, $parent: $box.parent }, true );				}				change( 'insert', { $elem: $ghost, oldIndex: $ghost.index - 1, $oldParent: $ghost.parent, index: index - 1, $parent: $hoverParent.length && $hoverParent.find( selectors.parent ) || $placeholder.parent } );			}			$ghost.removeAttr( 'style' ).removeClass( 'spriteedit-ghost' );			$hoverParent.css( 'outline',  );			$doc.css( 'min-height',  );			if ( options.sortEnd ) {				options.sortEnd.call( $ghost[0], $placeholder[0] );			}			$placeholder.remove;			$ghost = $placeholder = $hover = $hoverParent = $;			sorting = false;			$root.removeClass( 'spriteedit-sorting spriteedit-hidecontrols' );		} ); };	/**	 * Allows repeatable changes to be performed, which can be undone and redone *	 * The main function performs a change of a particular type. * "action" is the type of change this is: * * "edit" is changes to text (anything contentEditable) * * "insert" is any element being inserted, either fresh from the aether or taken *  from somewhere else in the document. * * "delete" is any element being removed from the document. * * "replace image" is when an image is replaced with a new image. * * "reset image" is when an image is reset to the original image in the sprite sheet. * "content" is an object containing anything necessary to describe the change, including * details to revert the change. * "queueChange" is a boolean determining if the change should be queued rather than committed * to history immediately. This allows multiple changes to be grouped as one history event. Note * that making a change which isn't queued will commit any currently queued changes to history * along with itself. * "oldChange" is a boolean determining if this change shouldn't be queued. Intended mainly for * undoing/redoing. *	 * The change.commit function allows queued changes to be committed to history. * The change.discard function allows queued changes to be discarded, although the changes * are not reverted. */	var change = ( function {		var queue = [];		var func = function( action, content, queueChange, oldChange ) {			switch ( action ) {				case 'edit':					if ( oldChange ) {						content.$elem.text( content.text );					}					if ( content.$elem.parent.hasClass( 'spritedoc-name' ) ) {						updateName( content.oldText, content.text, content.$elem );					}					names.invalidate( true );				break;				case 'insert':					var moved = content.$elem.parent.length;					var isBox = content.$elem.hasClass( 'spritedoc-box' );					var $oldBox = !isBox && content.$elem.closest( '.spritedoc-box' );					if ( content.index === -1 ) {						content.$parent.prepend( content.$elem );					} else {						content.$parent.children.eq( content.index ).after( content.$elem );					}					if ( !moved && ( isBox || content.$elem.hasClass( 'spritedoc-section' ) ) ) {						content.$elem.find( '.spritedoc-name' ).find( 'code' ).each( function { updateName( undefined, $( this ).text, $( this ) ); } );						if ( $doc.find( '.spriteedit-new' ).length ) {							sheet.invalidate( true );						}					} else if ( content.$elem.hasClass( 'spritedoc-name' ) ) {						if ( moved ) {							var $box = content.$elem.closest( '.spritedoc-box' );							if ( !$box.is( $oldBox ) ) {								updateBoxSorting( $oldBox );							}							updateBoxSorting( $box );						} else {							var $code = content.$elem.find( 'code' );							updateName( undefined, $code.text, $code );						}					}					requestAnimationFrame( function { scrollIntoView( content.$elem ); } );					names.invalidate( true );				break;				case 'delete':					var isBox = content.$elem.hasClass( 'spritedoc-box' );					var $box = !isBox && content.$elem.closest( '.spritedoc-box' );					content.$elem.detach;					if ( isBox || content.$elem.hasClass( 'spritedoc-section' ) ) {						content.$elem.find( '.spritedoc-name' ).find( 'code' ).each( function { updateName( $( this ).text, undefined, $( this ) ); } );						sheet.invalidate( !!$doc.find( '.spriteedit-new' ).length );					} else if ( content.$elem.hasClass( 'spritedoc-name' ) ) {						var $code = content.$elem.find( 'code' );						updateName( $code.text, undefined, $code );						updateBoxSorting( $box );					}					names.invalidate( true );				break;				case 'replace image':					var $box = content.$parent.parent;					if ( content.$oldImg && content.$oldImg.length ) {						content.$oldImg.detach;					} else {						$box.addClass( 'spriteedit-new' );						content.$parent.children.css( 'display', 'none' );					}					content.$parent.append( content.$elem );					sheet.invalidate( true );				break;				case 'reset image':					content.$elem.detach;					content.$parent.children.css( 'display', '' );					content.$parent.parent.removeClass( 'spriteedit-new' );					if ( !$doc.find( '.spriteedit-new' ).length ) {						sheet.invalidate( false ); }				break; case 'toggle deprecation': content.$elem.toggleClass( 'spritedoc-deprecated' ); names.invalidate( true ); break; }			var hist = { action: action, content: content }; if ( !oldChange ) { queue.push( hist ); if ( !queueChange ) { func.commit; }			}		};		func.commit = function { addHistory( queue ); queue = []; };		func.discard = function { queue = []; if ( !$doc.find( '.spriteedit-new' ).length ) { sheet.invalidate( false ); }			if ( !changes.length ) { names.invalidate( false ); $.each( [					'#spriteedit-save',					'#spriteedit-summary',					'#spriteedit-review-button'				], function {					$( this ).prop( 'disabled', true );				} ); }		};		return func; } );	/**	 * Adds a change to history	 *	 * Handles enabling the save and undo button, disabling the redo button,	 * releasing undone object URLs, and deleting the undone changes.	 */	var addHistory = function( actions ) {		changes.push( actions );		if ( undoneChanges.length ) {			// Release now unusable image URLs			$.each( undoneChanges, function { if ( this.action === 'replace image' ) { URL.revokeObjectURL( this.content.$elem.attr( 'src' ) ); }			} );			undoneChanges = [];			$( '#spriteedit-redo' ).prop( 'disabled', true );		}		$.each( [ '#spriteedit-undo', '#spriteedit-save', '#spriteedit-summary', '#spriteedit-review-button' ], function { $( this ).prop( 'disabled', false ); } );	};	/**	 * Reverts a change	 *	 * Takes a previously stored history entry and performs the necessary change	 * to revert it.	 */	var revert = function( hist ) {		// Invert the history entry's changes to revert it		var i = hist.length, histChange, content;		while ( i-- ) {			histChange = hist[i];			content = histChange.content;			switch( histChange.action ) {				case 'edit':					change( 'edit', { $elem: content.$elem, text: content.oldText, oldText: content.text }, false, true );				break;				case 'insert':					if ( content.$oldParent ) {						change( 'insert', { $elem: content.$elem, index: content.oldIndex, $parent: content.$oldParent }, false, true );					} else {						change( 'delete', { $elem: content.$elem, $parent: content.$parent }, false, true );					}				break;				case 'delete':					change( 'insert', { $elem: content.$elem, index: content.index, $parent: content.$parent }, false, true );				break;				case 'replace image':					if ( content.$oldImg.length ) {						change( 'replace image', { $elem: content.$oldImg, $parent: content.$parent, $oldImg: content.$elem }, false, true );					} else {						change( 'reset image', content, false, true );					}				break;				case 'reset image':					change( 'replace image', content, false, true );				break;				case 'toggle deprecation':					change( 'toggle deprecation', content, false, true );				break;			}		}		if ( !$doc.find( '.spriteedit-new' ).length ) {			sheet.invalidate( false );		}		if ( !changes.length ) {			names.invalidate( false );			$.each( [ '#spriteedit-undo', '#spriteedit-save', '#spriteedit-summary', '#spriteedit-review-button' ], function { $( this ).prop( 'disabled', true ); } );		}	};	/**	 * Updates the list of names for duplicate detection	 *	 * Also sorts the names and box if necessary.	 */	var updateName = function( oldText, newText, $elem ) {		if ( oldText ) {			var oldNames = usedNames[oldText];			if ( oldNames.length === 1 ) {				delete usedNames[oldText];			} else {				$.each( oldNames, function( i ) { if ( $elem.is( this ) ) { oldNames.splice( i, 1 ); return false; }				} );				if ( oldNames.length === 1 ) {					oldNames[0].removeClass( 'spriteedit-dupe' );				}			}		}		var $item = $elem.parent;		var oldIndex = $item.index;		if ( newText ) {			var newNames = usedNames[newText];			if ( !newNames ) {				newNames = usedNames[newText] = [];				$elem.removeClass( 'spriteedit-dupe' );			} else {				if ( newNames.length === 1 ) {					newNames[0].addClass( 'spriteedit-dupe' );				}				$elem.addClass( 'spriteedit-dupe' );			}			newNames.push( $elem );			var $parent = $item.parent;			var index = getAlphaIndex( newText, $item );			if ( index !== oldIndex ) {				change( 'insert', { $elem: $item, oldIndex: oldIndex - 1, $oldParent: $parent, index: index - 1, $parent: $parent }, false, true );			} else if ( index === 0 ) {				updateBoxSorting( $item.closest( '.spritedoc-box' ) );			}		}	};	/**	 * Updates the box's sort key and sorts it.	 */	var updateBoxSorting = function( $box ) {		var name = $box.find( '.spritedoc-name' ).first.text;		var oldName = $box.attr( 'data-sort-key' );		if ( name === oldName ) {			return;		}		$box.attr( 'data-sort-key', name );		var $parent = $box.parent;		var oldIndex = $box.index;		var index = getAlphaIndex( name, $box );		if ( index !== oldIndex ) {			change( 'insert', { $elem: $box, oldIndex: oldIndex - 1, $oldParent: $parent, index: index - 1, $parent: $parent }, false, true );		}	};	/**	 * Destroys the editor	 *	 * Removes any controls, and unbinds all events in the spriteEdit namespace, and releases	 * object URLs.	 *	 * "restore" is a boolean determining if the documentation should be restored to how it was	 * prior to opening the editor.	 * "leaveUrl" is a boolean determining if a the page URL shouldn't be updated to remove the	 * spriteedit action. Used for when the editor is destroyed due to history navigation.	 */	var destroy = function( restore, leaveUrl ) {		$win.add( document ).off( '.spriteEdit' );		if ( !leaveUrl ) {			if ( historySupported ) {				history.pushState( {}, '', mw.util.getUrl );			} else if ( location.search.match( 'spriteaction=edit' ) ) {				location = mw.util.getUrl;			}		}		var enabled = $root.hasClass( 'spriteedit-enabled' );		$root.removeClass( 'spriteedit-loaded spriteedit-enabled spriteedit-imageeditingenabled' ); var $viewTab = $( '#ca-view' ); $viewTab.add( '#ca-spriteedit' ).toggleClass( 'selected' ); $doc.add( $viewTab.find( 'a' ) ).off( '.spriteEdit' ); // No furthur cleanup necessary if ( !enabled ) { return; }		$( '.mw-editsection' ).add( '.mw-editsection-like' ).css( 'display', '' ); // Release old image URL references if ( sheet.modified ) { $.each( changes, function {				if ( this.action === 'replace image' ) {					URL.revokeObjectURL( this.content.$oldImg.attr( 'src' ) );				}			} ); }		if ( restore ) { // Release current image URL references if ( sheet.modified ) { $doc.find( '.spritedoc-image' ).find( 'img' ).each( function {					URL.revokeObjectURL( this.src );				} ); }			$doc.html( oldHtml ); return; }		$doc.find( '.mw-headline' ).add( $doc.find( '.spritedoc-name' ).find( 'code' ) ) .removeAttr( 'contenteditable' ); $.each( [			'.spriteedit-toolbar-container',			'.spriteedit-handle',			'.spriteedit-add-name',			'.spriteedit-tooltip',			'.spriteedit-dialog-overlay'		], function {			$( this ).remove;		} ); $( '.spriteedit-new' ).removeClass( '.spriteedit-new' ).each( function {			var newPos = $( this ).data( 'new-pos' );			if ( newPos !== undefined ) {				$( this ).data( 'pos', newPos ).removeData( 'new-pos' );			}		} ); }; };

/** Utility functions **/ /** * Allows calling a function when a main transition ends * * This only listens to transitions that happen on the element this is * called on, ignoring transitions bubbling from its children. * Additionally, if the browser doesn't support transitions, the callback * will be called immediately. * * The callback is passed along the "this" and "event" object from the event. */ $.fn.transitionEnd = function( callback ) { if ( supports( 'transition' ) ) { this.on( 'transitionend.spriteEdit', function( e ) {			var $elem = $( this );			if ( !$elem.is( e.target ) ) {				return;			}			callback.call( this, e );			$elem.off( 'transitionend.spriteEdit' );		} ); } else { this.each( function {			callback.call( this );		} ); }	return this; };

/** * Forces the browser to redraw an element */ $.fn.redraw = function { this.each( function {		this.offsetWidth;	} ); return this; };

/** * Returns the index to move an element to to sort it alphabetically, ignoring case * * "text" is the string to sort by. * "$elem" is the jQuery object which is to be sorted * "$parent" is the jQuery object which is the parent of the elements which "text" will be sorted by. * * Use "$elem" when sorting an element by its siblings. * Use "$parent" when sorting an element in a different container. */ var getAlphaIndex = function( text, $elem, $parent ) { var index; var $items = $parent ? $parent.children : $elem.siblings; $items.each( function {		var $this = $( this );		var compare = $this.attr( 'data-sort-key' ) || $this.text;		if ( text.toLowerCase < compare.toLowerCase ) {			index = $this.index;			return false;		}	} ); if ( index === undefined ) { if ( $items.length ) { index = $items.length; if ( !$parent ) { index++; }		} else { index = 0; }	}	// Account for trying to sort the element after itself if ( !$parent && index - 1 === $elem.index ) { index--; }	return index; };

/** * Attempts to scroll an element into view * * Takes into account the portion of window obscured by the toolbar. * Flashes the element's background yellow for a moment to bring it to attention. * * "$elem" is the jQuery object to scroll to. * "instant" is a boolean determining if the scrolling should be instant, instead of smooth * (if the browser supports smooth scrolling in the first place, that is). */ var scrollIntoView = function( $elem, instant ) { var elemRect = $elem[0].getBoundingClientRect; var toolbarHeight = $( '.spriteedit-toolbar' )[0].getBoundingClientRect.height; var scrollPos; if ( elemRect.top - toolbarHeight < 10 ) { scrollPos = elemRect.top + $win.scrollTop - toolbarHeight - 10; } else { var winHeight = $win.height - 40; if ( elemRect.height > winHeight || elemRect.bottom < winHeight ) { return; }		scrollPos = elemRect.bottom + $win.scrollTop - winHeight; }	if ( !instant ) { $root.addClass( 'spriteedit-smoothscroll' ); }	scroll( 0, scrollPos ); $elem.css( 'background-color', 'yellow' ); setTimeout( function {		$elem.css( 'background-color', '' );	}, 1000 ); };

/** * Picks the section which is probably the section the user wants to put things * * Mainly based on the section closest to the top of the screen, * but prefers elements which are not at all going off the screen * (accounting for the space taken up by the toolbar). * * Returns the section element */ var nearestSection = function { var offscreen, prox, elem; $doc.find( '.spritedoc-section' ).each( function {		var curPos = this.getBoundingClientRect.top - 35;		var curProx = Math.abs( curPos );		if ( prox && curProx > prox ) {			// Prefer on-screen section, even if it is further from the top			if ( offscreen ) {				elem = this;			}			return false;		}		offscreen = curPos < 0;		prox = curProx;		elem = this;	} ); return elem; };

/** * Converts the extended ISO timestamp returned by the API * into the basic version used by the rest of MediaWiki * * YYYY-MM-DDTHH:MM:SSZ -> YYYYMMDDHHMMSS */ var fixTimestamp = function( timestamp ) { return timestamp.replace( /[\-T:Z]/g, '' ); };

/** * Quote a string for lua table * * Uses either ' or " as the delimiter (depending on which is least used in the string), * then escapes \ and the chosen delimiter within the string. */ var luaStringQuote = function( str ) {	var quotes = ( str.match( /"/g ) || [] ).length; var apostrophies = ( str.match( /'/g ) || [] ).length; var delim = "'"; var delimRegex = /'/g; if ( apostrophies > quotes ) { delim = '"';		delimRegex = /"/g; }	return delim + str.replace( /\\/g, '\\\\' ).replace( delimRegex, '\\' + delim ) + delim; };

/** * Returns a lua key with quotes and brackets if necessary */ var luaKeyQuote = function( str ) { if ( str.match( /^[a-z_]\w*$/i ) ) { return str; }	return '[' + luaStringQuote( str ) + ']'; };

/** * Add various types of in-page controls to a set of elements * * "$elems" is a jQuery object containing the elements to add controls to. * "type" is the type of controls to add. */ var addControls = function( $elems, type ) { switch ( type ) { case 'heading': $elems.prepend( $( ' ' ).addClass( 'spriteedit-handle' ) ) .find( '.mw-headline' ).attr( 'contenteditable', true ); break; case 'box': $elems.prepend(				$( ' ' ).addClass( 'spriteedit-handle' ),				$( ' ' ).addClass( 'spriteedit-add-name' ).append( makeButton( i18n.controlNewName, { type: 'progressive' } ) )			);			addControls( $elems.find( '.spritedoc-name' ), 'name' ); break; case 'name': $elems.prepend( $( ' ' ).addClass( 'spriteedit-handle' ) ) .find( 'code' ).attr( 'contenteditable', true ); break; } };

/** * Create a MW UI button element * * "text" is the string displayed on the button. * "config" is an object defining various properties of the button: * * "type" is a string or array of strings defining the MW UI types *  this button should be (e.g.: progressive, destructive, constructive, quiet). * * "id" is the id attribute applied to the button. * * "props" is an object of properties applied to the button. * * "css" is the inline styling applied to the button. * * "action" is a function called when the button is clicked. */ var makeButton = function( text, config ) { var $button = $( ' ' ).addClass( 'mw-ui-button' ); var type = config.type || []; if ( !Array.isArray( type ) ) { type = [ type ]; }	$.each( type, function {		$button.addClass( 'mw-ui-' + this );	} ); if ( config.id ) { $button.prop( 'id', config.id ); }	$button .prop( config.props || {} ) .css( config.css || {} ) .text( text ) .click( config.action ); return $button; };

/** * Check if a CSS property or value is supported by the browser */ var supports = function( prop, val ) { if ( !val ) { return prop in $root[0].style; }	if ( window.CSS && CSS.supports ) { return CSS.supports( prop, val ); }	if ( window.supportsCSS ) { return supportsCSS( prop, val ); }	var camelProp = prop.replace( /-([a-z]|[0-9])/ig, function( _, chr ) {		return chr.toUpperCase;	} ); var elStyle = document.createElement( 'i' ).style; elStyle.cssText = prop + ':' + val; return elStyle[camelProp] !== ''; };

/** * Retries a request once if it fails * * Always returns an abortable promise, even if the request itself isn't abortable. * * "request" is a function which will run the request, * and should return the request's promise. * "delay" is the amount of milliseconds to wait before retrying. * "retries" is the amount of times to retry */ var retryableRequest = function( request, delay, retries ) { var deferred = $.Deferred; var curRequest; var timeout; retries = retries || 1; var attemptRequest = function( attempt ) { ( curRequest = request ).then( deferred.resolve, function( code, data ) {			if ( attempt <= retries ) {				timeout = setTimeout( function { attemptRequest( ++attempt ); }, delay || 1000 );			} else {				deferred.reject( code, data );			}		} ); };	attemptRequest( 1 ); return deferred.promise( { abort: function {		if ( curRequest.abort ) {			curRequest.abort;		}		clearTimeout( timeout );	} } ); };

/** * Handles generic API errors * * Just uselessly displays whatever error the API returns. * Hopefully the user can retry whatever they were doing. * * "code" and "data" are the standard variables returned by a mw.Api promise rejection. */ var handleError = function( code, data ) { var errorTitle = i18n.errorGeneric; var errorText; if ( code === 'http' ) { // Not an error if ( data.textStatus === 'abort' ) { return; }		if ( data.textStatus === 'error' || data.textStatus === 'timeout' ) { errorTitle = i18n.errorConnection; errorText = i18n.errorConnectionText; } else { errorTitle = i18n.errorHttp; errorText = data.textStatus; }	} else { errorTitle = i18n.errorApi; errorText = data.error.info; }	mw.notify( errorText, { title: errorTitle, type: 'error', autoHide: false } ); };

// Finally start the editor create( 'initial' );

} );