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jQuery Tokeninput: A Tokenizing Autocomplete Text Entry | ||
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Overview | ||
-------- | ||
Tokeninput is a jQuery plugin which allows your users to select multiple items from a predefined list, using autocompletion as they type to find each item. You may have seen a similar type of text entry when filling in the recipients field sending messages on facebook. | ||
# jQuery Tokeninput: A Tokenizing Autocomplete Text Entry | ||
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Documentation, Features and Demos | ||
--------------------------------- | ||
Full details and documentation can be found on the project page here: | ||
## Overview | ||
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<http://loopj.com/jquery-tokeninput/> | ||
Tokeninput is a jQuery plugin which allows your users to select multiple items | ||
from a predefined list, using autocompletion as they type to find each item. | ||
You may have seen a similar type of text entry when filling in the recipients | ||
field sending messages on facebook. | ||
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## Features | ||
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- Intuitive UI for selecting multiple items from a large list | ||
- Easy to skin/style purely in css, no images required | ||
- Supports any backend which can generate JSON, including PHP, Rails, Django, ASP.net | ||
- Smooth animations when results load | ||
- Select, delete and navigate items using the mouse or keyboard | ||
- Client-side result caching to reduce server load | ||
- Crossdomain support via JSONP | ||
- Callbacks when items are added or removed from the list | ||
- Preprocess results from the server with the onResult callback | ||
- Programatically add, remove, clear and get tokens | ||
- Customize the output format of the results and tokens | ||
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## Screenshots | ||
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![List style](list-style.png) | ||
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Vertical list style item selection | ||
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![List style](facebook-style.png) | ||
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Facebook style item selection | ||
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## Installation & Setup | ||
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### Create a server-side script to handle search requests | ||
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Create a server-side script (PHP, Rails, ASP.net, etc) to generate your | ||
search results. The script can fetch data from wherever you like, for | ||
example a database or a hardcoded list. Your script must accept a GET parameter | ||
named `q` which will contain the term to search for. E.g. | ||
<http://www.example.com/myscript?q=query> | ||
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Your script should output JSON search results in the following format: | ||
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```javascript | ||
[ | ||
{"id":"856","name":"House"}, | ||
{"id":"1035","name":"Desperate Housewives"}, | ||
... | ||
] | ||
``` | ||
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You may optionally specify an attribute of "readonly" and set it to true if you | ||
would like some of the tokens to be non-removable: | ||
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```javascript | ||
[ | ||
{"id":"856","name":"House","readonly":true}, | ||
{"id":"1035","name":"Desperate Housewives"}, | ||
... | ||
] | ||
``` | ||
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Note that you may omit "readonly" on entities where it is not necessary. This | ||
attribute is acceptable wherever JSON entities are passed, e.g. .tokenInput("add") | ||
(see Methods section below). | ||
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### Include and initialize the plugin | ||
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Include jQuery and Tokeninput Javascript and stylesheet files on your page, and | ||
attach to your text input: | ||
Tokeninput stylesheet: | ||
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```html | ||
<script type="text/javascript" src="https://ajax.googleapis.com/ajax/libs/jquery/1.5.1/jquery.min.js"></script> | ||
<script type="text/javascript" src="yourfiles/jquery.tokeninput.js"></script> | ||
<link rel="stylesheet" type="text/css" href="yourfiles/token-input.css" /> | ||
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<script type="text/javascript"> | ||
$(document).ready(function () { | ||
$("#my-text-input").tokenInput("/url/to/your/script/"); | ||
}); | ||
</script> | ||
``` | ||
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## Configuration | ||
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The tokeninput takes an optional second parameter on intitialization which | ||
allows you to customize the appearance and behaviour of the script, as well as | ||
add your own callbacks to intercept certain events. The following options are | ||
available: | ||
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### Search Settings | ||
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method | ||
: The HTTP method (eg. GET, POST) to use for the server request. *default: | ||
"GET"*. | ||
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queryParam | ||
: The name of the query param which you expect to contain the search term | ||
on the server-side. *default: "q"*. | ||
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searchDelay | ||
: The delay, in milliseconds, between the user finishing typing and the | ||
search being performed. *default: 300* | ||
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minChars | ||
: The minimum number of characters the user must enter before a search is | ||
performed. *default: 1* | ||
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propertyToSearch | ||
: The javascript/json object attribute to search. | ||
*default: "name"* | ||
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jsonContainer | ||
: The name of the json object in the response which contains the search | ||
results. This is typically used when your endpoint returns other data in | ||
addition to your search results. | ||
Use `null` to use the top level response object. *default: null*. | ||
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crossDomain | ||
: Force JSONP cross-domain communication to the server instead of a normal | ||
ajax request. Note: JSONP is automatically enabled if we detect the search | ||
request is a cross-domain request. *default: false*. | ||
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### Pre-population Settings | ||
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prePopulate | ||
: Prepopulate the tokeninput with existing data. Set to an array of JSON | ||
objects, eg: `[{id: 3, name: "test"}, {id: 5, name: "awesome"}]` | ||
to pre-fill the input. *default: null* | ||
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### Display Settings | ||
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hintText | ||
: The text to show in the dropdown label which appears when you first click | ||
in the search field. *default: "Type in a search term"* | ||
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noResultsText | ||
: The text to show in the dropdown label when no results are found which | ||
match the current query. *default: "No results"* | ||
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searchingText | ||
: The text to show in the dropdown label when a search is currently in | ||
progress. *default: "Searching..."* | ||
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deleteText | ||
: The text to show on each token which deletes the token when clicked. If | ||
you wish to hide the delete link, provide an empty string here. | ||
Alternatively you can provide a html string here if you would like to | ||
show an image for deleting tokens. | ||
*default: ×* | ||
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animateDropdown | ||
: Set this to `false` to disable animation of the dropdown *default: true* | ||
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theme | ||
: Set this to a string, eg "facebook" when including theme css files to set | ||
the css class suffix | ||
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resultsLimit | ||
: The maximum number of results shown in the drop down. Use `null` to show | ||
all the matching results. *default: null* | ||
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resultsFormatter | ||
: A function that returns an interpolated HTML string for each result. Use | ||
this function with a templating system of your choice, such as jresig | ||
microtemplates or mustache.js. Use this when you want to include images or | ||
multiline formatted results | ||
*default: `function(item){ return "<li>" + item.propertyToSearch + "</li>" }`* | ||
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tokenFormatter | ||
: A function that returns an interpolated HTML string for each token. Use | ||
this function with a templating system of your choice, such as jresig | ||
microtemplates or mustache.js. Use this when you want to include images or | ||
multiline formatted tokens. Quora's people invite token field that returns | ||
avatar tokens is a good example of what can be done this option. | ||
*default: `function(item){ return "<li><p>" + item.propertyToSearch + "</p></li>" }`* | ||
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### Tokenization Settings | ||
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tokenLimit | ||
: The maximum number of results allowed to be selected by the user. Use | ||
`null` to allow unlimited selections. *default: null* | ||
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tokenDelimiter | ||
: The separator to use when sending the results back to the server. | ||
*default: ","*. | ||
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preventDuplicates | ||
: Prevent user from selecting duplicate values by setting this to `true`. | ||
*default: false* | ||
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tokenValue | ||
: The value of the token input when the input is submitted. Set it to `id` | ||
in order to get a concatenation of token IDs, or to `name` in order to | ||
get a concatenation of names. *default: id* | ||
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### Callbacks | ||
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onResult | ||
: A function to call whenever we receive results back from the server. You | ||
can use this function to pre-process results from the server before they | ||
are displayed to the user. *default: null* | ||
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onAdd | ||
: A function to call whenever the user adds another token to their | ||
selections. *defaut: null* | ||
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onDelete | ||
: A function to call whenever the user removes a token from their selections. | ||
*default: null* | ||
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onReady | ||
: A function to call after initialization is done and the tokeninput is ready | ||
to use. *default: null* | ||
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## Methods | ||
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`selector.tokenInput("add", {id: x, name: y});` | ||
: Add a new token to the tokeninput with id `x` and name `y`. | ||
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`selector.tokenInput("remove", {id: x});` | ||
: Remove the tokens with id `x` from the tokeninput. | ||
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`selector.tokenInput("remove", {name: y});` | ||
: Remove the tokens with name `y` from the tokeninput. | ||
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`selector.tokenInput("clear");` | ||
: Clear all tokens from the tokeninput. | ||
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`selector.tokenInput("get");` | ||
: Gets the array of selected tokens from the tokeninput (each item being an object of the kind `{id: x, name: y}`). | ||
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## Reporting Bugs or Feature Requests | ||
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Please report any bugs or feature requests on the github issues page for this | ||
project here: | ||
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<https://github.com/loopj/jquery-tokeninput/issues> | ||
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## License | ||
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Tokeninput is released under a dual license. You can choose either the GPL or | ||
MIT license depending on the project you are using it in and how you wish to | ||
use it. |
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