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| <script> | |
| // Charles Lawrence - Feb 16, 2012. Free to use and modify. Please attribute back to @geuis if you find this useful | |
| // Twitter Bootstrap Typeahead doesn't support remote data querying. This is an expected feature in the future. In the meantime, others have submitted patches to the core bootstrap component that allow it. | |
| // The following will allow remote autocompletes *without* modifying any officially released core code. | |
| // If others find ways to improve this, please share. | |
| //User clicked some value by Adrian Hove | |
| var autocomplete = $('#searchinput').typeahead() | |
| .on('keyup', function(ev){ | |
| //User clicked some value | |
| $('ul.typeahead li').on('click', function(){ | |
| alert($(this).html().replace(/<(?:.|\n)*?>/gm, '')); //Or your function | |
| }); | |
| ev.stopPropagation(); | |
| ev.preventDefault(); | |
| //filter out up/down, tab, enter, and escape keys | |
| if( $.inArray(ev.keyCode,[40,38,9,13,27]) === -1 ){ | |
| var self = $(this); | |
| //set typeahead source to empty | |
| self.data('typeahead').source = []; | |
| //active used so we aren't triggering duplicate keyup events | |
| if( !self.data('active') && self.val().length > 0){ | |
| self.data('active', true); | |
| //Do data request. Insert your own API logic here. | |
| $.getJSON("http://search.twitter.com/search.json?callback=?",{ | |
| q: $(this).val() | |
| }, function(data) { | |
| //set this to true when your callback executes | |
| self.data('active',true); | |
| //Filter out your own parameters. Populate them into an array, since this is what typeahead's source requires | |
| var arr = [], | |
| i=data.results.length; | |
| while(i--){ | |
| arr[i] = data.results[i].text | |
| } | |
| //set your results into the typehead's source | |
| self.data('typeahead').source = arr; | |
| //trigger keyup on the typeahead to make it search | |
| self.trigger('keyup'); | |
| //All done, set to false to prepare for the next remote query. | |
| self.data('active', false); | |
| }); | |
| } | |
| } | |
| }); | |
| </script> | |
| <input type="text" id="searchinput" data-provide="typeahead"> |
You are correct with the problems part. I took out the code from that segment.
If I take out the $('ul.typeahead li').on('click', function(){}) from the the keyup, the typehead class in not yet in the DOM. It wont work.
.live() is deprecated in jq 1.7.
Docs from the jQuery site:
Rewriting the .live() method in terms of its successors is straightforward; these are templates for equivalent calls for all three event attachment methods:
$(selector).live(events, data, handler); // jQuery 1.3+
$(document).delegate(selector, events, data, handler); // jQuery 1.4.3+
$(document).on(events, selector, data, handler); // jQuery 1.7+
The events argument can either be a space-separated list of event type names and optional namespaces, or an event-map of event names strings and handlers. The data argument is optional and can be omitted. For example, the following three method calls are functionally equivalent (but see below for more effective and performant ways to attach delegated event handlers):
$("a.offsite").live("click", function(){ alert("Goodbye!"); }); // jQuery 1.3+
$(document).delegate("a.offsite", "click", function(){ alert("Goodbye!"); }); // jQuery 1.4.3+
$(document).on("click", "a.offsite", function(){ alert("Goodbye!"); });
So you should try:
$(document).on('click', 'ul.typeahead li'', function(){});
Basically the way .live worked was by listening for the defined events on the common parent DOM node for the dynamic nodes being modified. The version I shared listens on the document and uses "ul.typeahead li" as the context.
Docs from the jQuery site:
Rewriting the .live() method in terms of its successors is straightforward; these are templates for equivalent calls for all three event attachment methods:
$(selector).live(events, data, handler); // jQuery 1.3+
$(document).delegate(selector, events, data, handler); // jQuery 1.4.3+
$(document).on(events, selector, data, handler); // jQuery 1.7+
The events argument can either be a space-separated list of event type names and optional namespaces, or an event-map of event names strings and handlers. The data argument is optional and can be omitted. For example, the following three method calls are functionally equivalent (but see below for more effective and performant ways to attach delegated event handlers):
$("a.offsite").live("click", function(){ alert("Goodbye!"); }); // jQuery 1.3+
$(document).delegate("a.offsite", "click", function(){ alert("Goodbye!"); }); // jQuery 1.4.3+
$(document).on("click", "a.offsite", function(){ alert("Goodbye!"); });
So you should try:
$(document).on('click', 'ul.typeahead li'', function(){});
Basically the way .live worked was by listening for the defined events on the common parent DOM node for the dynamic nodes being modified. The version I shared listens on the document and uses "ul.typeahead li" as the context.
Couple problems with what you're doing here:
str is a global variable. Define it with var =
You're doing a jQuery lookup on every single key stroke.
You're re-defining event handlers on each key stroke. Very bad.
Just move your code out of the keyup function handler. Put it right after where 'var autocomplete' is defined. Also, you may find that .on() won't work once you move it outside. I haven't tested that. Since what we're dealing with here are dynamically created