I'm sure you guys have seen this excellent plugin:
http://code.drewwilson.com/entry/autosuggest-jquery-plugin
I checked it out and could not find an option to initiate the autosuggest plugin only when a specific character is typed. In this case I need it to be the at sign '@'.
I see it has the option to set a minimum number of characters: minChars: number (1 by default)
However, I need for the dropdown to NOT show until the @ sign is typed.
FYI, here are the options in jquery.autoSuggest.js
var defaults = {
asHtmlID: false,
startText: "Enter Name Here",
emptyText: "No Results Found",
preFill: {},
limitText: "No More Selections Are Allowed",
selectedItemProp: "value", //name of object property
selectedValuesProp: "value", //name of object property
searchObjProps: "value", //comma separated list of object property names
queryParam: "q",
retrieveLimit: false, //number for 'limit' param on ajax request
extraParams: "",
matchCase: false,
minChars: 1,
keyDelay: 400,
resultsHighlight: true,
neverSubmit: false,
selectionLimit: false,
showResultList: true,
start: function(){},
selectionClick: function(elem){},
selectionAdded: function(elem){},
selectionRemoved: function(elem){ elem.remove(); },
formatList: false, //callback function
beforeRetrieve: function(string){ return string; },
retrieveComplete: function(data){ return data; },
resultClick: function(data){},
resultsComplete: function(){}
};
var opts = $
Thanks!
I have never used this control before, but it looks like you're going to want to look into the jquery.autoSuggest.js file (non minified). Check out this case statement. I think you'll need to change the default: case to case x: where x is the ascii code for the key you want to use to trigger the autocomplete.
switch(e.keyCode) {
case 38: // up
e.preventDefault();
moveSelection("up");
break;
case 40: // down
e.preventDefault();
moveSelection("down");
break;
case 8: // delete
if(input.val() == ""){
var last = values_input.val().split(",");
last = last[last.length - 2];
selections_holder.children().not(org_li.prev()).removeClass("selected");
if(org_li.prev().hasClass("selected")){
values_input.val(values_input.val().replace(","+last+",",","));
opts.selectionRemoved.call(this, org_li.prev());
} else {
opts.selectionClick.call(this, org_li.prev());
org_li.prev().addClass("selected");
}
}
if(input.val().length == 1){
results_holder.hide();
prev = "";
}
if($(":visible",results_holder).length > 0){
if (timeout){ clearTimeout(timeout); }
timeout = setTimeout(function(){ keyChange(); }, opts.keyDelay);
}
break;
case 9: case 188: // tab or comma
tab_press = true;
var i_input = input.val().replace(/(,)/g, "");
if(i_input != "" && values_input.val().search(","+i_input+",") < 0 && i_input.length >= opts.minChars){
e.preventDefault();
var n_data = {};
n_data[opts.selectedItemProp] = i_input;
n_data[opts.selectedValuesProp] = i_input;
var lis = $("li", selections_holder).length;
add_selected_item(n_data, "00"+(lis+1));
input.val("");
}
case 13: // return
tab_press = false;
var active = $("li.active:first", results_holder);
if(active.length > 0){
active.click();
results_holder.hide();
}
if(opts.neverSubmit || active.length > 0){
e.preventDefault();
}
break;
default:
if(opts.showResultList){
if(opts.selectionLimit && $("li.as-selection-item", selections_holder).length >= opts.selectionLimit){
results_ul.html('<li class="as-message">'+opts.limitText+'</li>');
results_holder.show();
} else {
if (timeout){ clearTimeout(timeout); }
timeout = setTimeout(function(){ keyChange(); }, opts.keyDelay);
}
}
break;
}
Could be more like this
switch(e.keyCode) {
case 38: // up
e.preventDefault();
moveSelection("up");
break;
case 40: // down
e.preventDefault();
moveSelection("down");
break;
case 8: // delete
if(input.val() == ""){
var last = values_input.val().split(",");
last = last[last.length - 2];
selections_holder.children().not(org_li.prev()).removeClass("selected");
if(org_li.prev().hasClass("selected")){
values_input.val(values_input.val().replace(","+last+",",","));
opts.selectionRemoved.call(this, org_li.prev());
} else {
opts.selectionClick.call(this, org_li.prev());
org_li.prev().addClass("selected");
}
}
if(input.val().length == 1){
results_holder.hide();
prev = "";
}
if($(":visible",results_holder).length > 0){
if (timeout){ clearTimeout(timeout); }
timeout = setTimeout(function(){ keyChange(); }, opts.keyDelay);
}
break;
case 9: case 188: // tab or comma
tab_press = true;
var i_input = input.val().replace(/(,)/g, "");
if(i_input != "" && values_input.val().search(","+i_input+",") < 0 && i_input.length >= opts.minChars){
e.preventDefault();
var n_data = {};
n_data[opts.selectedItemProp] = i_input;
n_data[opts.selectedValuesProp] = i_input;
var lis = $("li", selections_holder).length;
add_selected_item(n_data, "00"+(lis+1));
input.val("");
}
case 13: // return
tab_press = false;
var active = $("li.active:first", results_holder);
if(active.length > 0){
active.click();
results_holder.hide();
}
if(opts.neverSubmit || active.length > 0){
e.preventDefault();
}
break;
case x:
if(opts.showResultList){
if(opts.selectionLimit && $("li.as-selection-item", selections_holder).length >= opts.selectionLimit){
results_ul.html('<li class="as-message">'+opts.limitText+'</li>');
results_holder.show();
} else {
if (timeout){ clearTimeout(timeout); }
timeout = setTimeout(function(){ keyChange(); }, opts.keyDelay);
}
}
break;
default:
//Do Nothing
}