מדיה ויקי:Gadget-IsBlock.js

$( function() {
	if ($( '.blockRequestUserName ').length === 0) return;
	var list = {};

	// collect all {{לחסום}} requests. note that it's an object, keyed by user name.
	// so, if there are multiple requests for same users, we only ask for one, and remember for each
	// all the spans we want to update for this user.
	$( '.blockRequestUserName ').each( function() {
		var span = $( this ),
			username = span.data( 'username' );
		(list[username] = (list[username] || [])).push(span);
	});

	// filter all anons to one list, and registered to another.
	var anons = Object.keys(list).filter( mw.util.isIPAddress );
	var registered = Object.keys(list).filter( function(u) { return !mw.util.isIPAddress(u) } );
	
	// construct an api object to be used below
	var api = new mw.Api();
	
	// start sending api calls. for anons ("bkip" parameter), we can only ask one at a time.
	anons.forEach( function(anon) {
		api.get( {
			list: 'blocks',
			bkip: anon
		})
		.done( reportBlocks );
	});
	
	
	// for registered, we can ask for up to 50 at a time.
	// todo: check list length, use .slice() or .splice() to chuck them in batches of 50.
	if (registered.length) {
		api.get( {
			list: 'blocks',
			bkusers: registered.join('|')
		})
		.done( reportBlocks );
	}
	
	// when query returns, see if there are any blocks, and if there are, add the block marker.
	// note that list[user] is an array of all the spans in the page requesting to block this user.
	// typically this array will be of length 1, but it can be more.
	function reportBlocks( data ) {
		if (data && data.query && data.query.blocks )
			data.query.blocks.forEach( function(block) {
				var user = decodeURIComponent( block.user ); // the api returns the user name encoded.
				addBlockedMarker( list[user] || [], block.by );
			});
	}
	
	function addBlockedMarker( spans, by ) {
		spans.forEach( function(span) {
			span
			.text(' | בחסימה')
			.attr('title', 'חסימה הופעלה בידי '  + by);
		});
	}
});