How one configure his web site to let users search only on his domain using omnibox?
Example:
I didn't find anyhing in the source code.
Yes it's possible. I did this for my blog.
<link rel="search" type="application/opensearchdescription+xml" title="The Sheng Blog" href="/resources/opensearch.php"/>
opensearch.php looks likes this:
<?xml version="1.0"?>
<OpenSearchDescription xmlns="http://a9.com/-/spec/opensearch/1.1/">
<ShortName>The Sheng Blog (Beta)</ShortName>
<Description>The Sheng Blog Search</Description>
<Developer>Sheng Slogar</Developer>
<LongName>Search the entire Sheng Blog</LongName>
<InputEncoding>UTF-8</InputEncoding>
<OutputEncoding>UTF-8</OutputEncoding>
<Query role="example" searchTerms="code"/>
<SyndicationRight>open</SyndicationRight>
<AdultContent>false</AdultContent>
<Language>en-us</Language>
<Contact>contact@theshengblogg.comule.com</Contact>
<Tags>code posts tutorials ideas playground</Tags>
<Image width="16" height="16" type="image/x-icon">data:/ico;base64,AAABA...(Icon in base64)</Image>
<Url type="text/html" template="http://theshengblogg.comule.com/search.php?s={searchTerms}"></Url>
<Url type="application/x-suggestions+json" method="GET" template="http://theshengblogg.comule.com/autocomplete.php?search={searchTerms}&json=true"/>
</OpenSearchDescription>
I learned this from http://www.opensearch.org/Specifications/OpenSearch/1.1. The autocomplete part is optional. Return it in JSON format.
For example, if you search "a", return ["a","about","across","all","and"]. (Notice I put your query in the array as item 0.)
My autocomplete only seems to work in Firefox. This might be something with my sub domain. I also couldn't get it to work in IE or Chrome.