mirror of
https://gerrit.wikimedia.org/r/mediawiki/extensions/VisualEditor
synced 2024-11-15 18:39:52 +00:00
425 lines
12 KiB
JavaScript
425 lines
12 KiB
JavaScript
/**
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* Simple link handler. Registers after template expansions, as an
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* asynchronous transform.
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*
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* @author Gabriel Wicke <gwicke@wikimedia.org>
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*
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* TODO: keep round-trip information in meta tag or the like
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*/
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var jshashes = require('jshashes'),
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PegTokenizer = require('./mediawiki.tokenizer.peg.js').PegTokenizer;
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function WikiLinkHandler( manager, isInclude ) {
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this.manager = manager;
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this.manager.addTransform( this.onWikiLink.bind( this ), this.rank, 'tag', 'wikilink' );
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// create a new peg parser for image options..
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if ( !this.imageParser ) {
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// Actually the regular tokenizer, but we'll call it with the
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// img_options production only.
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WikiLinkHandler.prototype.imageParser = new PegTokenizer();
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}
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}
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WikiLinkHandler.prototype.rank = 1.15; // after AttributeExpander
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WikiLinkHandler.prototype.onWikiLink = function ( token, frame, cb ) {
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var env = this.manager.env,
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href = token.attribs[0].v,
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tail = env.lookupKV( token.attribs, 'tail' ).v;
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var title = this.manager.env.makeTitleFromPrefixedText(
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env.tokensToString( href )
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);
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if ( title.ns.isFile() ) {
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cb( this.renderFile( token, frame, cb, title ) );
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} else if ( title.ns.isCategory() ) {
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// TODO: implement
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cb( { } );
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} else {
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// Check if page exists
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//
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//console.warn( 'title: ' + JSON.stringify( title ) );
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var obj = new TagTk( 'a', [ new KV( 'href', title.makeLink() ) ] ),
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content = token.attribs.slice(1, -1);
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//console.warn('content: ' + JSON.stringify( content, null, 2 ) );
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// XXX: handle trail
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if ( content.length ) {
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var out = [];
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for ( var i = 0, l = content.length; i < l ; i++ ) {
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out = out.concat( content[i].v );
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if ( i < l - 1 ) {
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out.push( '|' );
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}
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}
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content = out;
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} else {
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content = [ env.decodeURI( env.tokensToString( href ) ) ];
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}
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if ( tail ) {
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content.push( tail );
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}
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//obj.attribs.push( new KV('data-mw-type', 'internal') );
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obj.dataAttribs = token.dataAttribs;
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obj.dataAttribs.linkType = 'internal';
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cb ( {
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tokens: [obj].concat( content, new EndTagTk( 'a' ) )
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} );
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}
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};
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WikiLinkHandler.prototype._simpleImageOptions = {
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// halign
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'left': 'halign',
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'right': 'halign',
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'center': 'halign',
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'float': 'halign',
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'none': 'halign',
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// valign
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'baseline': 'valign',
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'sub': 'valign',
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'super': 'valign',
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'top': 'valign',
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'text-top': 'valign',
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'middle': 'valign',
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'bottom': 'valign',
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'text-bottom': 'valign',
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// format
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'border': 'format',
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'frameless': 'format',
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'frame': 'format',
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'thumbnail': 'format',
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'thumb': 'format'
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};
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WikiLinkHandler.prototype._prefixImageOptions = {
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'link': 'link',
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'alt': 'alt',
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'page': 'page',
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'thumbnail': 'thumb',
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'thumb': 'thumb',
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'upright': 'aspect'
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};
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WikiLinkHandler.prototype.renderFile = function ( token, frame, cb, title ) {
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var env = this.manager.env;
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// distinguish media types
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// if image: parse options
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// Slice off the target and trail
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var content = token.attribs.slice(1, -1);
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var MD5 = new jshashes.MD5(),
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hash = MD5.hex( title.key ),
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// TODO: Hackhack.. Move to proper test harness setup!
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path = [ this.manager.env.wgUploadPath, hash[0],
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hash.substr(0, 2), title.key ].join('/');
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// extract options
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var options = [],
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oHash = {},
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caption = [];
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for( var i = 0, l = content.length; i<l; i++ ) {
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var oContent = content[i],
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oText = this.manager.env.tokensToString( oContent.v, true );
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//console.log( JSON.stringify( oText, null, 2 ) );
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if ( oText.constructor === String ) {
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oText = oText.trim();
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if ( this._simpleImageOptions[ oText.toLowerCase() ] ) {
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options.push( new KV( this._simpleImageOptions[ oText.toLowerCase() ],
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oText ) );
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oHash[ this._simpleImageOptions[ oText ] ] = oText;
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continue;
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} else {
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var maybeSize = oText.match(/^(\d*)(?:x(\d+))?px$/);
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//console.log( maybeSize );
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if ( maybeSize !== null ) {
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var x = maybeSize[1],
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y = maybeSize[2];
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if ( x !== undefined ) {
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options.push(new KV( 'width', x ) );
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oHash.width = x;
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}
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if ( y !== undefined ) {
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options.push(new KV( 'height', y ) );
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oHash.height = y;
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}
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} else {
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var bits = oText.split( '=', 2 ),
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key = this._prefixImageOptions[ bits[0].trim().toLowerCase() ];
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if ( bits[0] && key) {
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oHash[key] = bits[1];
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options.push( new KV( key, bits[1] ) );
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//console.warn('handle prefix ' + bits );
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} else {
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// neither simple nor prefix option, add original
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// tokens to caption.
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caption = caption.concat( oContent.v );
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}
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}
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}
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} else {
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caption = caption.concat( oContent.v );
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}
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}
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//var contentPos = token.dataAttribs.contentPos;
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//var optionSource = token.source.substr( contentPos[0], contentPos[1] - contentPos[0] );
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//console.log( 'optionSource: ' + optionSource );
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// XXX: The trouble with re-parsing is the need to re-expand templates.
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// Figure out how often non-image links contain image-like parameters!
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//var options = this.imageParser.processImageOptions( optionSource );
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//console.log( JSON.stringify( options, null, 2 ) );
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// XXX: check if the file exists, generate thumbnail, get size
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// XXX: render according to mode (inline, thumb, framed etc)
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if ( oHash.format && ( oHash.format === 'thumb' || oHash.format === 'thumbnail') ) {
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return this.renderThumb( token, this.manager, cb, title, path, caption, oHash, options );
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} else {
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// TODO: get /wiki from config!
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var a = new TagTk( 'a', [ new KV( 'href', title.makeLink() ) ] );
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a.dataAttribs = token.dataAttribs;
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var width, height;
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if ( ! oHash.height && ! oHash.width ) {
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width = '200px';
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} else {
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width = oHash.width;
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height = oHash.height;
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}
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var img = new SelfclosingTagTk( 'img',
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[
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// FIXME!
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new KV( 'height', height || '' ),
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new KV( 'width', width || '' ),
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new KV( 'src', path ),
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new KV( 'alt', oHash.alt || title.key )
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] );
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return { tokens: [ a, img, new EndTagTk( 'a' )] };
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}
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};
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WikiLinkHandler.prototype.renderThumb = function ( token, manager, cb, title, path, caption, oHash, options ) {
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// TODO: get /wiki from config!
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var a = new TagTk( 'a', [ new KV( 'href', title.makeLink() ) ] );
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a.dataAttribs = token.dataAttribs;
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a.dataAttribs.optionHash = oHash;
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a.dataAttribs.optionList = options;
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var width = 165;
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// Handle upright
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if ( 'aspect' in oHash ) {
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if ( oHash.aspect > 0 ) {
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width = width * oHash.aspect;
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} else {
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width *= 0.75;
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}
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}
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var figurestyle = "width: " + (width + 5) + "px;",
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figureclass = "thumb tright thumbinner";
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// set horizontal alignment
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if ( oHash.halign ) {
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if ( oHash.halign === 'left' ) {
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figurestyle += ' float: left;';
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figureclass = "thumb tleft thumbinner";
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} else if ( oHash.halign === 'center' ) {
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figureclass = "thumb center thumbinner";
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} else if ( oHash.halign === 'none' ) {
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figureclass = "thumb thumbinner";
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} else {
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figurestyle += ' float: right;';
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}
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} else {
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figurestyle += ' float: right;';
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}
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// XXX: set vertical alignment (valign)
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// XXX: support other formats (border, frameless, frame)
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// XXX: support prefixes
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var thumb =
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[
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new TagTk(
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'figure',
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[
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new KV('class', figureclass),
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new KV('style', figurestyle),
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new KV('typeof', 'http://mediawiki.org/rdf/Thumb'),
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new KV('prefix', "mw: http://mediawiki.org/rdf/terms/")
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]
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),
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new TagTk(
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'a',
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[
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new KV('href', title.makeLink()),
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new KV('class', 'image')
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]
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),
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new SelfclosingTagTk(
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'img',
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[
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new KV('src', path),
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new KV('width', width + 'px'),
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//new KV('height', '160px'),
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new KV('class', 'thumbimage'),
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new KV('alt', oHash.alt || title.key ),
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new KV('resource', title.getPrefixedText())
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]
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),
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new EndTagTk( 'a' ),
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new SelfclosingTagTk (
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'a',
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[
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new KV('href', title.makeLink()),
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new KV('class', 'internal sprite details magnify'),
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new KV('title', 'View photo details')
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]
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),
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new TagTk( 'figcaption',
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[
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new KV('class', 'thumbcaption'),
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new KV('property', 'mw:thumbcaption')
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] )
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].concat(
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caption,
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[
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new EndTagTk( 'figcaption' ),
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new EndTagTk( 'figure' )
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]
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);
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// set round-trip information on the wrapping figure token
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thumb[0].dataAttribs = token.dataAttribs;
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/*
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* Wikia DOM:
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<figure class="thumb tright thumbinner" style="width:270px;">
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<a href="Delorean.jpg" class="image" data-image-name="DeLorean.jpg" id="DeLorean-jpg">
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<img alt="" src="Delorean.jpg" width="268" height="123" class="thumbimage">
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</a>
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<a href="File:DeLorean.jpg" class="internal sprite details magnify" title="View photo details"></a>
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<figcaption class="thumbcaption">
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A DeLorean DMC-12 from the front with the gull-wing doors open
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<table><tr><td>test</td></tr></table>
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Continuation of the caption
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</figcaption>
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<div class="picture-attribution">
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<img src="Christian-Avatar.png" width="16" height="16" class="avatar" alt="Christian">Added by <a href="User:Christian">Christian</a>
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</div>
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</figure>
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*/
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//console.warn( 'thumbtokens: ' + JSON.stringify( thumb, null, 2 ) );
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return { tokens: thumb };
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};
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function ExternalLinkHandler( manager, isInclude ) {
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this.manager = manager;
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this.manager.addTransform( this.onUrlLink.bind( this ), this.rank, 'tag', 'urllink' );
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this.manager.addTransform( this.onExtLink.bind( this ),
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this.rank - 0.001, 'tag', 'extlink' );
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// create a new peg parser for image options..
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if ( !this.imageParser ) {
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// Actually the regular tokenizer, but we'll call it with the
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// img_options production only.
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ExternalLinkHandler.prototype.imageParser = new PegTokenizer();
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}
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}
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ExternalLinkHandler.prototype.rank = 1.15;
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ExternalLinkHandler.prototype._imageExtensions = {
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'jpg': true,
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'png': true,
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'gif': true,
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'svg': true
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};
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ExternalLinkHandler.prototype._isImageLink = function ( href ) {
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var bits = href.split( '.' );
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return bits.length > 1 &&
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this._imageExtensions[ bits[bits.length - 1] ] &&
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href.match( /^https?:\/\// );
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};
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ExternalLinkHandler.prototype.onUrlLink = function ( token, frame, cb ) {
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var env = this.manager.env,
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href = env.sanitizeURI(
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env.tokensToString( env.lookupKV( token.attribs, 'href' ).v )
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);
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if ( this._isImageLink( href ) ) {
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cb( { token: new SelfclosingTagTk( 'img',
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[
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new KV( 'src', href ),
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new KV( 'alt', href.split('/').last() )
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]
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)
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} );
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} else {
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cb( {
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tokens: [
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new TagTk( 'a', [ new KV( 'href', href ) ] ),
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href,
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new EndTagTk( 'a' )
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]
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} );
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}
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};
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// Bracketed external link
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ExternalLinkHandler.prototype.onExtLink = function ( token, manager, cb ) {
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var env = this.manager.env,
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href = env.tokensToString( env.lookupKV( token.attribs, 'href' ).v ),
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content= env.lookupKV( token.attribs, 'content' ).v;
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href = env.sanitizeURI( href );
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//console.warn('extlink href: ' + href );
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//console.warn( 'content: ' + JSON.stringify( content, null, 2 ) );
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// validate the href
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if ( this.imageParser.tokenizeURL( href ) ) {
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if ( content.length === 1 &&
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content[0].constructor === String &&
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this.imageParser.tokenizeURL( content[0] ) &&
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this._isImageLink( content[0] ) )
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{
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var src = content[0];
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content = [ new SelfclosingTagTk( 'img',
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[
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new KV( 'src', src ),
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new KV( 'alt', src.split('/').last() )
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] )
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];
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}
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cb( {
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tokens:
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[
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new TagTk ( 'a',
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[ new KV('href', href) ],
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token.dataAttribs
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)
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].concat( content, [ new EndTagTk( 'a' )])
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} );
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} else {
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cb( {
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tokens: ['[', href, ' ' ].concat( content, [']'] )
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} );
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}
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};
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if (typeof module == "object") {
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module.exports.WikiLinkHandler = WikiLinkHandler;
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module.exports.ExternalLinkHandler = ExternalLinkHandler;
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}
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