jQuery UI的自动完成组合框 - 改变不费一枪 [英] Jquery ui Autocomplete Combobox - changed not firing
问题描述
我需要使用jQuery UI自动完成组合框帮助。我不能得到的更改事件的火不管。我从不同的例子拉到一起这个小程序。
我有一个的jsfiddle这里当前工作的例子。我希望它ALERT我已更改选择ID(我有这些小部件的4我的网站建设上的一个页面上)。
我没有得到任何错误的JS从这个例子中,所以我究竟做错了什么?在此先感谢
(函数($){
$ .widget(custom.combobox,{ _create:功能(){
this.wrapper = $(&所述;跨度>中)
.addClass(自定义组合框)
.insertAfter(this.element);
this.element.hide();
this._createAutocomplete();
this._createShowAllButton();
}, _createAutocomplete:功能(){
VAR选择= this.element.children(:选择),
值= selected.val()? selected.text():; this.input = $(<输入>中)
.appendTo(this.wrapper)
.VAL(值)
.attr(称号,)
.addClass(自定义组合框中输入UI的小部件的UI控件内容的UI状态默认UI的角落遗)
.autocomplete({
延迟:0,
的minLength:0,
来源:$ .proxy(这一点,_source)
})
.tooltip({
tooltipClass:UI状态,突出
})
。对('鼠标松开',函数(){
$(本)。选择();
}); $(本).blur(); this._on(this.input,{
autocompleteselect:函数(事件,UI){
ui.item.option.selected = TRUE;
this._trigger(选择,事件{
项目:ui.item.option
});
}, autocompletechange:_removeIfInvalid
});
}, _createShowAllButton:功能(){
VAR输入= this.input,
wasOpen = FALSE; $(&所述a取代;)
.attr(的tabIndex,-1)
.attr(称号,显示所有项目)
.tooltip()
.appendTo(this.wrapper)
.button({
图标:{
初级:UI图标三角-1-S
},
文本:假
})
.removeClass(UI角所有)
.addClass(自定义组合框,切换UI的角落权)
.mousedown(函数(){
wasOpen = input.autocomplete(小部件)是(:可见);
})
。点击(函数(){
input.focus();
input.blur(); //关闭,如果已经显现
如果(wasOpen){
返回;
}; //把空字符串值,搜索,显示所有结果
input.autocomplete(搜索,);
});
}, _source:功能(请求,响应){
VAR匹配=新的RegExp($ ui.autocomplete.escapeRegex(request.term),I);
响应(this.element.children(选项)。图(函数(){
变种文字= $(本)的.text();
如果(THIS.VALUE&安培;及(request.term || matcher.test(文本))!){回报
标签:文字,
值:文本,
选项:此
};
}));
}, _removeIfInvalid:函数(事件,UI){
//选择一个项目,无关
如果(ui.item){ VAR选择= this.element;
返回;
}; //搜索匹配(不区分大小写)
变种default_text =; VAR值= this.input.val()
valueLowerCase = value.toLowerCase(),
有效= FALSE; this.element.children(选项)。每个(函数(){ 如果($(本).VAL()==默认){
default_text = $(本)的.text();
}; 如果($(本)的.text()。与toLowerCase()=== valueLowerCase){
this.selected =有效= TRUE;
返回false;
};
}); //找到一个匹配,无关
如果(有效){
返回;
}; //删除无效值
this.input.val(default_text)
.attr(称号,值+没有匹配任何项目)
.tooltip(开放); this._delay(函数(){
。this.input.tooltip(关闭)ATTR(称号,);
},2500);
this.input.data(UI-自动完成)一词=。
}, _destroy:功能(){
this.wrapper.remove();
this.element.show();
}, 刷新:功能(){
选择= this.element.children(:选择);
this.input.val(selected.text());
}, 选择:函数(事件,UI){
ui.item.option.selected = TRUE;
self._trigger(选中,事件,{
项目:ui.item.option
});
select.trigger(变);
}, 改变:函数(事件,UI){
如果(!ui.item){
VAR匹配=新的RegExp(^+ $ .ui.autocomplete.escapeRegex($(本).VAL())+$,I),
有效= FALSE;
select.children(选项)。每个(函数(){
如果($(本)的.text()。匹配(匹配)){
this.selected =有效= TRUE;
返回false;
};
});
如果(!有效){
//删除无效的价值,因为它没有匹配
$(本).VAL();
select.val();
。input.data(自动完成)一词=;
返回false;
};
};
}
});
})(jQuery的);
简单的方法来检测用户改变了组合框试试这个:
$(#组合框)。组合框({
选择:函数(事件,UI){
警报(THIS.VALUE);
}
});
I need help with JQuery UI Autocomplete Combobox. I cannot get the "CHANGED" event to fire no matter what. I have pulled together this widget from various examples.
I have a JSFiddle here for the current working example. I want it to "ALERT" me with the select ID that was changed (I have 4 of these widgets on one page on the site I am building).
I get no JS errors from the example, so what am I doing wrong? Thanks in advance
(function ($) {
$.widget("custom.combobox", {
_create: function () {
this.wrapper = $("<span>")
.addClass("custom-combobox")
.insertAfter(this.element);
this.element.hide();
this._createAutocomplete();
this._createShowAllButton();
},
_createAutocomplete: function () {
var selected = this.element.children(":selected"),
value = selected.val() ? selected.text() : "";
this.input = $("<input>")
.appendTo(this.wrapper)
.val(value)
.attr("title", "")
.addClass("custom-combobox-input ui-widget ui-widget-content ui-state-default ui-corner-left")
.autocomplete({
delay: 0,
minLength: 0,
source: $.proxy(this, "_source")
})
.tooltip({
tooltipClass: "ui-state-highlight"
})
.on('mouseup', function () {
$(this).select();
});
$(this).blur();
this._on(this.input, {
autocompleteselect: function (event, ui) {
ui.item.option.selected = true;
this._trigger("select", event, {
item: ui.item.option
});
},
autocompletechange: "_removeIfInvalid"
});
},
_createShowAllButton: function () {
var input = this.input,
wasOpen = false;
$("<a>")
.attr("tabIndex", -1)
.attr("title", "Show All Items")
.tooltip()
.appendTo(this.wrapper)
.button({
icons: {
primary: "ui-icon-triangle-1-s"
},
text: false
})
.removeClass("ui-corner-all")
.addClass("custom-combobox-toggle ui-corner-right")
.mousedown(function () {
wasOpen = input.autocomplete("widget").is(":visible");
})
.click(function () {
input.focus();
input.blur();
// Close if already visible
if (wasOpen) {
return;
};
// Pass empty string as value to search for, displaying all results
input.autocomplete("search", "");
});
},
_source: function (request, response) {
var matcher = new RegExp($.ui.autocomplete.escapeRegex(request.term), "i");
response(this.element.children("option").map(function () {
var text = $(this).text();
if (this.value && (!request.term || matcher.test(text))) return {
label: text,
value: text,
option: this
};
}));
},
_removeIfInvalid: function (event, ui) {
// Selected an item, nothing to do
if (ui.item) {
var selected = this.element;
return;
};
// Search for a match (case-insensitive)
var default_text = "";
var value = this.input.val(),
valueLowerCase = value.toLowerCase(),
valid = false;
this.element.children("option").each(function () {
if ($(this).val() == "default") {
default_text = $(this).text();
};
if ($(this).text().toLowerCase() === valueLowerCase) {
this.selected = valid = true;
return false;
};
});
// Found a match, nothing to do
if (valid) {
return;
};
// Remove invalid value
this.input.val(default_text)
.attr("title", value + " didn't match any item")
.tooltip("open");
this._delay(function () {
this.input.tooltip("close").attr("title", "");
}, 2500);
this.input.data("ui-autocomplete").term = "";
},
_destroy: function () {
this.wrapper.remove();
this.element.show();
},
refresh: function () {
selected = this.element.children(":selected");
this.input.val(selected.text());
},
select: function (event, ui) {
ui.item.option.selected = true;
self._trigger("selected", event, {
item: ui.item.option
});
select.trigger("change");
},
change: function (event, ui) {
if (!ui.item) {
var matcher = new RegExp("^" + $.ui.autocomplete.escapeRegex($(this).val()) + "$", "i"),
valid = false;
select.children("option").each(function () {
if ($(this).text().match(matcher)) {
this.selected = valid = true;
return false;
};
});
if (!valid) {
// remove invalid value, as it didn't match anything
$(this).val("");
select.val("");
input.data("autocomplete").term = "";
return false;
};
};
}
});
})(jQuery);
simpler way to detect the user has changed the combobox Try this:
$("#combobox").combobox({
select: function (event, ui) {
alert(this.value);
}
});
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