AutoComplete Widget :: JS Function Example
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<title>AutoComplete Widget :: JS Function Example</title>
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<style type="text/css">
#statesmod {position:relative;padding:1em;}
#statesautocomplete {position:relative;margin:1em;width:15em;}/* set width of widget here*/
#statesinput {position:absolute;width:100%;height:1.4em;}
#statescontainer {position:absolute;top:1.7em;width:100%;}
#statescontainer .yui-ac-content {position:absolute;width:100%;height:11em;border:1px solid #404040;background:#fff;overflow:hidden;z-index:9050;}
#statescontainer .yui-ac-shadow {position:absolute;margin:.3em;width:100%;background:#a0a0a0;z-index:9049;}
#statescontainer ul {padding:5px 0;width:100%;}
#statescontainer li {padding:0 5px;cursor:default;white-space:nowrap;}
#statescontainer li.yui-ac-highlight {background:#ff0;}
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<h1><img src="./img/logo.gif" class="logo" alt="Y!"/><a href="./">AutoComplete Widget</a> :: JavaScript Function</h1>
</div>
<div id="bd">
<!-- Logger begins -->
<div id="logger"></div>
<!-- Logger ends -->
<!-- Content begins -->
<h3>DataSource</h3>
<p>This DataSource instance points to an in-memory JavaScript function that
returns results in an array. The function queries against an in-memory object
literal of data that holds the 50 US states and their corresponding postal
abbreviations.</p>
<h3>AutoComplete</h3>
<p>Since the DataSource for this example is already loaded into memory,
queries should be very fast to return data. Therefore, the AutoComplete
instance is configured to have a query delay of zero seconds. The
AutoComplete instance is also configured to display two data fields in its
container: the state and its corresponding postal abbreviation. By setting
the alwaysShowContainer property to true and customizing appropriate CSS styles, the
container has been implemented to always be displayed. Custom event handlers
have been hooked into containerExpandEvent and containerCollapseEvent to
dynamically update the always open container's contents.</p>
<!-- AutoComplete begins -->
<div id="statesmod">
<form onsubmit="return YAHOO.example.ACJSFunction.validateForm();">
<h2>Find a state:</h2>
<div id="statesautocomplete">
<input id="statesinput">
<div id="statescontainer"></div>
</div>
</form>
</div>
<!-- AutoComplete ends -->
<!-- Sample code begins -->
<div id="code" style="margin-top:15em;">
<h3>Sample Code</h3>
<p>CSS:</p>
<textarea name="code" class="HTML" cols="60" rows="1">
#statesmod {position:relative;padding:1em;}
#statesautocomplete {position:relative;margin:1em;width:15em;}/* set width of widget here*/
#statesinput {position:absolute;width:100%;height:1.4em;}
#statescontainer {position:absolute;top:1.7em;width:100%;}
#statescontainer .yui-ac-content {position:absolute;width:100%;height:11em;border:1px solid #404040;background:#fff;overflow:hidden;z-index:9050;}
#statescontainer .yui-ac-shadow {position:absolute;margin:.3em;width:100%;background:#a0a0a0;z-index:9049;}
#statescontainer ul {padding:5px 0;width:100%;}
#statescontainer li {padding:0 5px;cursor:default;white-space:nowrap;}
#statescontainer li.yui-ac-highlight {background:#ff0;}
</textarea>
<p>Markup:</p>
<textarea name="code" class="HTML" cols="60" rows="1">
<!-- AutoComplete begins -->
<div id="statesmod">
<form onsubmit="return YAHOO.example.ACJSFunction.validateForm();">
<h2>Find a state:</h2>
<div id="statesautocomplete">
<input id="statesinput">
<div id="statescontainer"></div>
</div>
</form>
</div>
<!-- AutoComplete ends -->
</textarea>
<p>JavaScript:</p>
<textarea name="code" class="JScript" cols="60" rows="1">
function getStates(sQuery) {
aResults = [];
if(sQuery.length > 0) {
var charKey = sQuery.substring(0,1).toLowerCase();
var oResponse = dataset[charKey];
if(oResponse) {
for(var i = oResponse.length-1; i >= 0; i--) {
var sKey = oResponse[i].STATE;
var sKeyIndex = encodeURI(sKey.toLowerCase()).indexOf(sQuery.toLowerCase());
// Query found at the beginning of the key string for STARTSWITH
// returns an array of arrays where STATE is index=0, ABBR is index=1
if(sKeyIndex === 0) {
aResults.unshift([sKey, oResponse[i].ABBR]);
}
}
}
return aResults;
}
else { return null; }
}
var dataset =
{'a': [{"STATE" : "Alabama", "ABBR" : "AL"},
{"STATE" : "Alaska", "ABBR" : "AK"},
{"STATE" : "Arizona", "ABBR" : "AZ"},
{"STATE" : "Arkansas", "ABBR" : "AR"}],
'b' : [
],
'c' : [
{"STATE" : "California", "ABBR" : "CA"},
{"STATE" : "Colorado", "ABBR" : "CO"},
{"STATE" : "Connecticut", "ABBR" : "CT"}] // Entire dataset not shown
};
YAHOO.example.ACJSFunction = function(){
var mylogger;
var oACDS;
var oAutoComp;
return {
init: function() {
//Logger
mylogger = new YAHOO.widget.LogReader("logger");
// Instantiate JS Function DataSource
oACDS = new YAHOO.widget.DS_JSFunction(getStates);
// Instantiate AutoComplete
oAutoComp = new YAHOO.widget.AutoComplete('statesinput','statescontainer', oACDS);
oAutoComp.alwaysShowContainer = true;
oAutoComp.queryDelay = 0;
oAutoComp.maxResultsDisplayed = 8;
oAutoComp.useShadow = true;
oAutoComp.setBody("<div id=\"statescontainerdefault\">Start typing to find a state</div>");
oAutoComp.formatResult = function(oResultItem, sQuery) {
var sMarkup = oResultItem[0] + " (" + oResultItem[1] + ")";
return (sMarkup);
};
// Subscribe to Custom Events
oAutoComp.dataReturnEvent.subscribe(YAHOO.example.ACJSFunction.myOnDataReturn);
oAutoComp.containerCollapseEvent.subscribe(YAHOO.example.ACJSFunction.myOnContainerCollapse);
},
// Define Custom Event handlers
myOnDataReturn: function(sType, aArgs) {
var oAutoComp = aArgs[0];
var sQuery = aArgs[1];
var aResults = aArgs[2];
if(aResults.length == 0) {
oAutoComp.setBody("<div id=\"statescontainerdefault\">No matching results</div>");
}
},
myOnContainerCollapse: function(sType, aArgs) {
var oAutoComp = aArgs[0];
oAutoComp.setBody("<div id=\"statescontainerdefault\">Start typing to find a state</div>");
},
validateForm: function() {
// Validate form inputs here
return false;
}
};
}();
YAHOO.util.Event.addListener(this,'load',YAHOO.example.ACJSFunction.init);
</textarea>
</div>
<!-- Code sample ends -->
</div>
<!-- Content ends -->
<!-- Libary begins -->
<script type="text/javascript" src="./build/yahoo/yahoo.js"></script>
<script type="text/javascript" src="./build/dom/dom.js"></script>
<script type="text/javascript" src="./build/event/event-debug.js"></script>
<script type="text/javascript" src="./build/animation/animation.js"></script>
<script type="text/javascript" src="./build/autocomplete/autocomplete-debug.js"></script>
<script type="text/javascript" src="./build/logger/logger.js"></script>
<!-- Library ends -->
<!-- In-memory JS dataset begins-->
<script type="text/javascript" src="./examples/autocomplete/js/states_jsfunction.js"></script>
<!-- In-memory JS dataset ends-->
<script type="text/javascript">
YAHOO.example.ACJSFunction = function(){
var mylogger;
var oACDS;
var oAutoComp;
return {
init: function() {
//Logger
mylogger = new YAHOO.widget.LogReader("logger");
// Instantiate JS Function DataSource
oACDS = new YAHOO.widget.DS_JSFunction(getStates);
// Instantiate AutoComplete
oAutoComp = new YAHOO.widget.AutoComplete('statesinput','statescontainer', oACDS);
oAutoComp.alwaysShowContainer = true;
oAutoComp.queryDelay = 0;
oAutoComp.maxResultsDisplayed = 8;
oAutoComp.useShadow = true;
oAutoComp.setBody("<div id=\"statescontainerdefault\">Start typing to find a state</div>");
oAutoComp.formatResult = function(oResultItem, sQuery) {
var sMarkup = oResultItem[0] + " (" + oResultItem[1] + ")";
return (sMarkup);
};
// Subscribe to Custom Events
oAutoComp.dataReturnEvent.subscribe(YAHOO.example.ACJSFunction.myOnDataReturn);
oAutoComp.containerCollapseEvent.subscribe(YAHOO.example.ACJSFunction.myOnContainerCollapse);
},
// Define Custom Event handlers
myOnDataReturn: function(sType, aArgs) {
var oAutoComp = aArgs[0];
var sQuery = aArgs[1];
var aResults = aArgs[2];
if(aResults.length == 0) {
oAutoComp.setBody("<div id=\"statescontainerdefault\">No matching results</div>");
}
},
myOnContainerCollapse: function(sType, aArgs) {
var oAutoComp = aArgs[0];
oAutoComp.setBody("<div id=\"statescontainerdefault\">Start typing to find a state</div>");
},
validateForm: function() {
// Validate form inputs here
return false;
}
};
}();
YAHOO.util.Event.addListener(this,'load',YAHOO.example.ACJSFunction.init);
</script>
<script type="text/javascript" src="./docs/assets/dpSyntaxHighlighter.js"></script>
<script type="text/javascript">
dp.SyntaxHighlighter.HighlightAll('code');
</script>
</body>
</html>
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