A small engine that returns results when you stop typing into an input field.
jQuery-LiveSearch attaches to an input:
Then when a user stops typing, it serializes the nearest parent form and submits it with ajax. When the results come back it fires a custom jquery event:
You can bind to that on the input, or any of it's parent elements (bubbling rules!), and then present it to your users in any way you wish.
- delay: number of milliseconds to wait after a keystroke, before sending a request (default: 400)
- minimum_characters: don't send a request until the user has typed in this number of characters (default: 3)
- serialize: the form to serialize and submit (default: $(element).closest('form'))
- client_side_cache: if set to true, when the user types in something they have already typed in before, jQuery-LiveSearch will use the last results it has obtained (default: true)
- process_data: function to process form data, before making the AJAX call; should accept and return data as query string (default: false)
- dataType: data type to pass to jQuery.ajax() call (default: 'json')
- If the user starts typing before a request is complete, it cancels the original request and starts a new one.
- If the user types in something they have already typed in before, it uses the last results it has obtained (client_side_cache: true).
- If the user hits enter before they have 'stopped typing' it sends the request immediately (but you have to block the form from submitting yourself).
Some possible uses
- Autocomplete for search: you want to help your users out by making some guesses as to what they are typing.
- Selecting an item from a large set: you want to let your user search through a large set of items, and then pick one.
- Searching for a page to navigate to: you have a long list of pages that your user might want to visit, but you don't have space (and you're users don't have the patience) to output a long list of links.
I've started writing some example plugins, that sit on top of the livesearch plugin, the first of this is livesearch.input_dropdown. It takes a JSON array of strings, and creates a div with a class of 'results' with a ul of those strings. It lets you click on, or arrow through, those results, and populates the input with the value of the currently selected value. This is a very basic style for livesearch, and should get you started.