GravDept Typeahead

Fast, lightweight typeahead to enhance text inputs.

Demo

[todo]

Features

• Efficient — Create multiple typeahead instances from a lean constructor prototype.
• Customizable — Simple configuration object.
• Simple rendering — Override the render method to match any data source.
• Multiple facets — Supports multiple grouped facets in one response.
• Touch-friendly — Appropriate padding on target sizes.
• Keyboard-friendly — Supports tab and shift + tab.
• Two display modes — Block or absolutely positioned results.
• Click outside the input or response to close typeahead.

Form behavior

• Submit forms naturally,
• Or prevent submission for typeahead only use.

Loading behavior

• Render typeahead instantly on new response,
• Or show loading indicator for slow-loading requests.

Valid response behavior

• Click link to follow immediately,
• Or delegated event for external handling.

Empty response behavior

• Custom messaging for empty responses,
• Or simply hide the typeahead.

Dependencies

• jQuery

Usage

Add JS templates to the page:

See: /html/js-templates.html

Add the script to the page:

<script src="path/to/typeahead.js"></script>

Initialize with options:

var searchTypeahead = new Typeahead();

searchTypeahead.render = function (json) {
    // Process your JSON and return HTML
    return html;
};

searchTypeahead.init({
    elements: {
        button:   'search-button',
        form:     'search-form',
        input:    'search-input',
        response: 'search-response'
    },
    url: 'http://example.com/ajax/typeahead'
});

Documentation

[todo]

Options

var config = {
    debounceTime: 300, // {number} - Milliseconds to pause before querying
    elements: {
        button:   'search-button',  // {string} - ID of submit buttton
        form:     'search-form',    // {string} - ID of form
        input:    'search-input',   // {string} - ID of text input
        response: 'search-response' // {string} - ID of response element
    },
    paramNameForQuery: null,  // {string}  - Param name for which the query value is passed.
    preventFormSubmit: false, // {boolean} - Prevent form submit if no "action" exists
    queryMinimum:      3,     // {number}  - Minimum characters to start typeahead
    requestData:       {},    // {object}  - URL params to attach to request
    showEmpty:         false, // {boolean} - Show message if response has no results
    showLoading:       false, // {boolean} - Show loading between request and response
    url:               null   // {string}  - URL to query for data
}