我需要创建一个小部件，以便通过一些搜索和自动完成功能更好地制作一个普通的选择框。我立刻来到this example ..看看。
使用最新的 jQuery UI ，它完美无缺，但我严格要求使用jQuery UI的 1.8.20 版本。
现在我看到自定义窗口小部件代码中使用的this._on @ 行号：62 在 jquery.ui.widget.js 中不可用版本1.8.20。
如何使组合框与旧版本一起使用？
答案 0 :(得分：1)
以下是您如何调整jQuery 1.8.20的小部件。 我在jsFiddle中使用1.8.18。
(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")
})
/* plugin not present
.tooltip({
tooltipClass: "ui-state-highlight"
})*/
;
this.input.bind('autocompleteselect', function (event, ui) {
ui.item.option.selected = true;
$(this).trigger("select", event, {
item: ui.item.option
});
});
this.input.bind('autocompletechange', function (event, ui) {
// Selected an item, nothing to do
if (ui.item) {
return;
}
// Search for a match (case-insensitive)
var value = this.input.val(),
valueLowerCase = value.toLowerCase(),
valid = false;
this.element.children("option").each(function () {
if ($(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("")
.attr("title", value + " didn't match any item")
/*.tooltip("open")*/;
this.element.val("");
this._delay(function () {
this.input /*.tooltip("close")*/
.attr("title", "");
}, 2500);
this.input.data("ui-autocomplete").term = "";
});
/* using delegate instead
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;
$("<a>")
.attr("tabIndex", -1)
.attr("title", "Show All Items")
//.tooltip()
.appendTo(this.wrapper)
.button({
icons: {
primary: "ui-icon-triangle-1-s"
},
text: false
})
.removeClass("ui-corner-all")
.addClass("custom-combobox-toggle ui-corner-right")
.mousedown(function () {
wasOpen = input.autocomplete("widget").is(":visible");
})
.click(function () {
input.focus();
// Close if already visible
if (wasOpen) {
return;
}
// Pass empty string as value to search for, displaying all results
input.autocomplete("search", "");
});
},
_source: function (request, response) {
var matcher = new RegExp($.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
};
}));
},
_destroy: function () {
this.wrapper.remove();
this.element.show();
}
});
})(jQuery);
$(function () {
$("#combobox").combobox();
$("#toggle").click(function () {
$("#combobox").toggle();
});
});
答案 1 :(得分：1)
这是一个可在iPad上运行的custom.combox，在组合框中显示所有项目时不显示iPad键盘。为了我的目的，我希望＆＃34;可编辑的下拉菜单，如＃34;功能。我的答案的重点是停止显示iPad键盘，看看我对iPad黑客的评论。
(function($) {
$.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();
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({don't display tooltip in ipad, clunky
// tooltipClass: "ui-state-highlight"
//});
this.input.bind('autocompleteselect', function(event, ui) {
if ((/iPhone|iPod|iPad/).test(navigator.userAgent)) {
var $input = $(this);
setTimeout(function() {
$input.removeAttr('readonly'); //release readonly lock on input-end ipad hack
}, 2000);
}
ui.item.option.selected = true;
$(this).trigger("select", event, {
item: ui.item.option
});
});
this.input.bind('autocompletechange', function (event, ui) {
// Selected an item, nothing to do
if (ui.item) {
return;
}
// Search for a match (case-insensitive)
var value = this.input.val(),
valueLowerCase = value.toLowerCase(),
valid = false;
this.element.children("option").each(function () {
if ($(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("")
.attr("title", value + " didn't match any item")
/*.tooltip("open")*/;
this.element.val("");
this._delay(function () {
this.input /*.tooltip("close")*/
.attr("title", "");
}, 2500);
this.input.data("ui-autocomplete").term = "";
});
//this._on(this.input, {
// autocompleteselect: function(event, ui) {
// var $option = $(ui.item.option);
// //var optionType = $option.data('type');
// ui.item.option.selected = true;
// this._trigger("select", event, {
// item: ui.item.option
// });
// //old way of updating Code description and comment, now using KO
// //if (optionType) {
// // if (optionType === 'option-type-code') {
// // var prelimId = $option.parents('.options-row').data('id');
// // var descriptionRow = $('#optionsContainer').find('.options-description-row[data-id="' + prelimId + '"]');
// // var description = $option.data('description');
// // var comment = $option.data('comment');
// // descriptionRow.find('input[data-type="option-description-input"]').val(description);
// // descriptionRow.find('input[data-type="option-comment-input"]').val(comment);
// // }
// //}
// },
// //autocompletechange: "_removeIfInvalid"
//});
},
_createShowAllButton: function() {
var input = this.input,
wasOpen = false;
$("<a>")
.attr("tabIndex", -1)
.attr("title", "Show All Items")
//.tooltip() //don't display tooltip in ipad, clunky
.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() {
if ((/iPhone|iPod|iPad/).test(navigator.userAgent)) {
$(input).attr('readonly', 'readonly'); //begin ipad hack to stop keyboard from displaying on combobox select
} else {
input.focus();
}
// Close if already visible
if (wasOpen) {
return;
}
// Pass empty string as value to search for, displaying all results
input.autocomplete("search", "");
});
},
_source: function(request, response) {
var matcher = new RegExp($.ui.autocomplete.escapeRegex(request.term), "i");
response(this.element.children("option").map(function() {
var text = $(this).text();
var value = $(this).val();
if (this.value && (!request.term || matcher.test(text)))
return {
label: text,
value: value,
option: this
};
}));
},
_removeIfInvalid: function(event, ui) {
// Selected an item, nothing to do
if (ui.item) {
return;
}
// Search for a match (case-insensitive)
var value = this.input.val(),
valueLowerCase = value.toLowerCase(),
valid = false;
this.element.children("option").each(function() {
if ($(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("")
.attr("title", value + " didn't match any item")
.tooltip("open");
this.element.val("");
this._delay(function() {
this.input.tooltip("close").attr("title", "");
}, 2500);
this.input.data("ui-autocomplete").term = "";
},
_destroy: function() {
this.wrapper.remove();
this.element.show();
}
});
})(jQuery);