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YUI Library Examples: AutoComplete Control: Combobox, with CSS for Multiple Stacked Instances

AutoComplete Control: Combobox, with CSS for Multiple Stacked Instances

This "combo box" AutoComplete implementation allows the user to pick an item from a set list or enter a custom value directly into the input field. Please note the following custom CSS:

  • z-index has been applied to support multiple vertically stacked AutoComplete instances
  • the input field and container have been styled to support a button inline to the right

Implementers who are working with data from third-party sources, user input data, or otherwise untrustworthy sources should be sure to read the Security Considerations section of the AutoComplete user guide.

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Sample Code

Data:

1YAHOO.example.Data.menu: { 
2    breakfasts: [ 
3        "donuts", 
4        "omelette", 
5        "pancakes", 
6        "yogurt" 
7    ], 
8    lunches: [ 
9        "burrito", 
10        "hamburger", 
11        "salad", 
12        "turkey sandwich" 
13    ], 
14    dinners: [ 
15        "meatloaf", 
16        "spaghetti", 
17        "pot roast", 
18        "roast chicken", 
19        "steak" 
20    ] 
21}; 
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CSS:

1/* custom styles for inline instances */ 
2.yui-skin-sam .yui-ac-input { position:static;width:20em; vertical-align:middle;} 
3.yui-skin-sam .yui-ac-container { width:20em;left:0px;} 
4 
5/* needed for stacked instances for ie & sf z-index bug of absolute inside relative els */ 
6#bAutoComplete { z-index:9001; }  
7#lAutoComplete { z-index:9000; } 
8 
9/* buttons */ 
10.yui-ac .yui-button {vertical-align:middle;} 
11.yui-ac .yui-button button {background: url(../autocomplete/assets/img/ac-arrow-rt.png) center center no-repeat } 
12.yui-ac .open .yui-button button {background: url(../autocomplete/assets/img/ac-arrow-dn.png) center center no-repeat} 
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Markup:

1<label for="bInput">What would you like for breakfast?</label> 
2<div id="bAutoComplete"> 
3    <input id="bInput" type="text"> <span id="toggleB"></span> 
4    <div id="bContainer"></div> 
5</div> 
6 
7<label for="lInput">What would you like for lunch?</label> 
8<div id="lAutoComplete"> 
9    <input id="lInput" type="text"> <span id="toggleL"></span> 
10    <div id="lContainer"></div> 
11</div> 
12 
13<label for="dInput">What would you like for dinner?</label> 
14<div id="dAutoComplete"> 
15    <input id="dInput" type="text"> <span id="toggleD"></span> 
16    <div id="dContainer"></div> 
17</div> 
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JavaScript:

1YAHOO.example.Combobox = function() { 
2    // Instantiate DataSources 
3    var bDS = new YAHOO.util.LocalDataSource(YAHOO.example.Data.menu.breakfasts); 
4    var lDS = new YAHOO.util.LocalDataSource(YAHOO.example.Data.menu.lunches); 
5    var dDS = new YAHOO.util.LocalDataSource(YAHOO.example.Data.menu.dinners); 
6 
7    // Instantiate AutoCompletes 
8    var oConfigs = { 
9        prehighlightClassName: "yui-ac-prehighlight", 
10        useShadow: true, 
11        queryDelay: 0, 
12        minQueryLength: 0, 
13        animVert: .01 
14    } 
15    var bAC = new YAHOO.widget.AutoComplete("bInput", "bContainer", bDS, oConfigs); 
16    var lAC = new YAHOO.widget.AutoComplete("lInput", "lContainer", lDS, oConfigs); 
17    var dAC = new YAHOO.widget.AutoComplete("dInput", "dContainer", dDS, oConfigs); 
18     
19    // Breakfast combobox 
20    var bToggler = YAHOO.util.Dom.get("toggleB"); 
21    var oPushButtonB = new YAHOO.widget.Button({container:bToggler}); 
22    var toggleB = function(e) { 
23        //YAHOO.util.Event.stopEvent(e); 
24        if(!YAHOO.util.Dom.hasClass(bToggler, "open")) { 
25            YAHOO.util.Dom.addClass(bToggler, "open") 
26        } 
27         
28        // Is open 
29        if(bAC.isContainerOpen()) { 
30            bAC.collapseContainer(); 
31        } 
32        // Is closed 
33        else { 
34            bAC.getInputEl().focus(); // Needed to keep widget active 
35            setTimeout(function() { // For IE 
36                bAC.sendQuery(""); 
37            },0); 
38        } 
39    } 
40    oPushButtonB.on("click", toggleB); 
41    bAC.containerCollapseEvent.subscribe(function(){YAHOO.util.Dom.removeClass(bToggler, "open")}); 
42     
43    // Lunch combobox 
44    var lToggler = YAHOO.util.Dom.get("toggleL"); 
45    var oPushButtonL = new YAHOO.widget.Button({container:lToggler}); 
46    var toggleL = function(e) { 
47        //YAHOO.util.Event.stopEvent(e); 
48        if(!YAHOO.util.Dom.hasClass(lToggler, "open")) { 
49            YAHOO.util.Dom.addClass(lToggler, "open") 
50        } 
51         
52        // Is open 
53        if(lAC.isContainerOpen()) { 
54            lAC.collapseContainer(); 
55        } 
56        // Is closed 
57        else { 
58            lAC.getInputEl().focus(); // Needed to keep widget active 
59            setTimeout(function() { // For IE 
60                lAC.sendQuery(""); 
61            },0); 
62        } 
63    } 
64    oPushButtonL.on("click", toggleL); 
65    lAC.containerCollapseEvent.subscribe(function(){YAHOO.util.Dom.removeClass(lToggler, "open")}); 
66 
67    // Dinner combobox 
68    var dToggler = YAHOO.util.Dom.get("toggleD"); 
69    var oPushButtonD = new YAHOO.widget.Button({container:dToggler}); 
70    var toggleD = function(e) { 
71        //YAHOO.util.Event.stopEvent(e); 
72        if(!YAHOO.util.Dom.hasClass(dToggler, "open")) { 
73            YAHOO.util.Dom.addClass(dToggler, "open") 
74        } 
75         
76        // Is open 
77        if(dAC.isContainerOpen()) { 
78            dAC.collapseContainer(); 
79        } 
80        // Is closed 
81        else { 
82            dAC.getInputEl().focus(); // Needed to keep widget active 
83            setTimeout(function() { // For IE 
84                dAC.sendQuery(""); 
85            },0); 
86        } 
87    } 
88    oPushButtonD.on("click", toggleD); 
89    dAC.containerCollapseEvent.subscribe(function(){YAHOO.util.Dom.removeClass(dToggler, "open")}); 
90 
91    return { 
92        bDS: bDS, 
93        bAC: bAC, 
94        lDS: lDS, 
95        lAC: lAC, 
96        dDS: dDS, 
97        dAC: dAC 
98    }; 
99}(); 
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Configuration for This Example

You can load the necessary JavaScript and CSS for this example from Yahoo's servers. Click here to load the YUI Dependency Configurator with all of this example's dependencies preconfigured.

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