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* VisualEditor UserInterface UrlStringTransferHandler class.
*
* @copyright See AUTHORS.txt
*/
/**
* Handle pastes and drag-and-drop of URLs and links.
* Attempts to preserve link titles when possible.
*
* @class
* @extends ve.ui.PlainTextStringTransferHandler
*
* @constructor
* @param {ve.ui.Surface} surface
* @param {ve.ui.DataTransferItem} item
*/
ve.ui.UrlStringTransferHandler = function VeUiUrlStringTransferHandler() {
// Parent constructor
ve.ui.UrlStringTransferHandler.super.apply( this, arguments );
};
/* Inheritance */
OO.inheritClass( ve.ui.UrlStringTransferHandler, ve.ui.PlainTextStringTransferHandler );
/* Static properties */
ve.ui.UrlStringTransferHandler.static.name = 'urlString';
ve.ui.UrlStringTransferHandler.static.types = [
// DnD standard, no title information
'text/uri-list',
// Support: Firefox
// Firefox type, preserves title
'text/x-moz-url',
// Used in GNOME drag-and-drop
'text/x-uri',
// Identify links in pasted plain text as well
...ve.ui.UrlStringTransferHandler.super.static.types
];
ve.ui.UrlStringTransferHandler.static.handlesPaste = true;
/**
* RegExp matching an external url.
*
* @property {RegExp}
* @private
*/
ve.ui.UrlStringTransferHandler.static.urlRegExp = null; // Initialized below
ve.init.Platform.static.initializedPromise.then( () => {
ve.ui.UrlStringTransferHandler.static.urlRegExp =
new RegExp(
ve.init.platform.getExternalLinkUrlProtocolsRegExp().source +
'\\S+$',
'i' // Protocols are case-insensitive
);
} );
/* Methods */
ve.ui.UrlStringTransferHandler.static.matchFunction = function ( item ) {
// Match all specific mime types
if ( ve.ui.UrlStringTransferHandler.static.types.indexOf( item.type ) >= 0 &&
item.type !== 'text/plain' ) {
return true;
}
// If the type if unspecified or text/plain, then let's check whether it
// is a valid URL.
return ve.ui.UrlStringTransferHandler.static.urlRegExp.test(
item.getAsString()
);
};
/**
* @inheritdoc
*/
ve.ui.UrlStringTransferHandler.prototype.process = function () {
const surface = this.surface,
store = surface.getModel().getDocument().getStore(),
linkAction = ve.ui.actionFactory.create( 'link', surface ),
data = this.item.getAsString();
let links;
switch ( this.item.type ) {
case 'text/uri-list':
// text/uri-list has embedded comments; remove them before
// autolinking. In theory the embedded comments can be
// used for link titles, but I've never seen this done by
// real apps. You could add code here to annotate the
// links with the comment information if you can find a
// spec for how it should be done.
links = data.replace( /^#.*(\r\n?|\n|$)/mg, '' ).trim()
.split( /[\r\n]+/g ).map( ( line ) => ( { href: line } ) );
// Support: Chrome
// When Chrome uses this mime type the link titles can
// be extracted from the 'text/html' version of the item.
// Let's try that.
if ( this.item.data.htmlStringData ) {
const html = this.item.data.htmlStringData;
const doc = ve.createDocumentFromHtml( html );
links = $.makeArray( doc.querySelectorAll( 'a[href]' ) )
.map( ( a ) => ( { href: a.href, title: a.textContent } ) );
}
break;
case 'text/x-moz-url':
// text/x-moz-url includes titles with the links (alternating lines)
links = data.match( /^(.*)(\r\n?|\n)(.*)$/mg ).map( ( item ) => {
item = item.split( /[\r\n]+/ );
return { href: item[ 0 ], title: item[ 1 ] };
} );
break;
default:
// A single URL
links = [ { href: data.trim() } ];
break;
}
// Create linked text.
const result = [];
links.forEach( ( link ) => {
const annotation = linkAction.getLinkAnnotation( link.href ),
annotationSet = new ve.dm.AnnotationSet( store, store.hashAll( [
annotation
] ) ),
title = link.title || annotation.getDisplayTitle(),
content = title.split( '' );
// Put a space between multiple links
if ( result.length ) {
result.push( ' ' );
}
ve.dm.Document.static.addAnnotationsToData( content, annotationSet );
for ( let i = 0; i < content.length; i++ ) {
result.push( content[ i ] );
}
} );
this.resolve( result );
};
/* Registration */
ve.ui.dataTransferHandlerFactory.register( ve.ui.UrlStringTransferHandler );
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