我在预先:
中遇到以下用例时遇到问题所以,故事的道德是,在第一种情况下,如果未从列表中选择字符串并且它是列表字符串的子字符串,则应该清除字符串...
那么,也许是一种类型搜索 - 焦点搜索设置?
<input type="text" focus-me="opened" ng-focus="onFocus($event)" ng-show="opened" ng-trim="false" ng-model="selected" empty-typeahead typeahead="state for state in states | filter:$viewValue:stateComparator" class="form-control" />
(function () {
var secretEmptyKey = '[$empty$]'
angular.module('plunker', ['ui.bootstrap'])
.directive('focusMe', function($timeout, $parse) {
return {
//scope: true, // optionally create a child scope
link: function(scope, element, attrs) {
var model = $parse(attrs.focusMe);
scope.$watch(model, function(value) {
if(value === true) {
$timeout(function() {
element[0].focus();
});
}
});
}
};
})
.directive('emptyTypeahead', function () {
return {
require: 'ngModel',
link: function (scope, element, attrs, modelCtrl) {
// this parser run before typeahead's parser
modelCtrl.$parsers.unshift(function (inputValue) {
var value = (inputValue ? inputValue : secretEmptyKey); // replace empty string with secretEmptyKey to bypass typeahead-min-length check
modelCtrl.$viewValue = value; // this $viewValue must match the inputValue pass to typehead directive
return value;
});
// this parser run after typeahead's parser
modelCtrl.$parsers.push(function (inputValue) {
return inputValue === secretEmptyKey ? '' : inputValue; // set the secretEmptyKey back to empty string
});
}
}
})
.controller('TypeaheadCtrl', function($scope, $http, $timeout) {
$scope.selected = undefined;
$scope.states = ['Alabama', 'Alaska', 'Arizona', 'Arkansas', 'California', 'Colorado', 'Connecticut', 'Wyoming'];
$scope.opened = true;
$scope.stateComparator = function (state, viewValue) {
return viewValue === secretEmptyKey || (''+state).toLowerCase().indexOf((''+viewValue).toLowerCase()) > -1;
};
$scope.onFocus = function (e) {
$timeout(function () {
$(e.target).trigger('input');
$(e.target).trigger('change'); // for IE
});
};
});
}());
我有Plunker来展示我的代码的样子。
还有GitHub Issue。
答案 0 :(得分:0)
您需要检查列表中是否存在输入值的模糊。 为此,请执行以下操作:
在输入
中添加属性ng-blur="onBlur($event)"
在控制器中定义以下方法:
$scope.onBlur = function (e) {
$timeout(function () {
var val = $(e.target).val();
if(val && $scope.states.indexOf(val) == -1) {
$(e.target).val("")
}
});
};
答案 1 :(得分:0)
经过一番努力,我得到了正确的解决方案......
有一些指令可用于解决方案,
在typeaheadFocus
指令中添加以上条件,
if ((e.type == "focus" && viewValue != ' ') && (e.type == "focus" && viewValue != '')){
return;
}
在typeaheadFocus
指令和typeaheadOnDownArrow
指令中添加以下功能
//compare function that treats the empty space as a match
scope.$emptyOrView = function(actual) {
if(ngModel.$viewValue.trim()) {
return actual ? actual.value.toString().toLowerCase().indexOf(ngModel.$viewValue.toLowerCase()) > -1 : false;
}
return true;
};
在ui-bootstrap.js中更改此条件,
if (inputFormatter) {
locals.$model = modelValue;
if(modelValue){
locals.$label = view_value;
} else {
locals.$label = '';
}
在ui-bootstrap js中添加以下event
element.bind('blur', function(evt) {
hasFocus = false;
if (!isEditable && modelCtrl.$error.editable) {
element.val('');
modelCtrl.$viewValue = ' ';
}
if(!isEditable && scope.no_data_found) {
//ngModel.$viewValue = '';
modelCtrl.$viewValue = ' ';
scope.no_data_found = false;
popUpEl.find('.typeaheadNoData').remove();
resetMatches();
scope.$digest();
element.val("");
}
});
在ui-bootstrap.js中添加
// I listen for emptyTypeAhead events from the parent scope chain.
originalScope.$on(
"emptyTypeAhead",
function handlePingEvent( event, newVal1) {
var scope = originalScope.$new();
modelCtrl.$setViewValue(newVal1);
return newVal1;
}
);
在所有指令中使用ui-bootstrap.js添加上述函数
.directive('shouldFocus', function($parse) {
return {
restrict: 'A',
link: function(scope, element, attrs) {
scope.$watch(attrs.shouldFocus, function(newVal, oldVal) {
var isActive = scope.$eval(attrs.shouldFocus);
if(isActive) {
var ele = element[0];
var parent = ele.parentNode
if(ele.offsetTop + ele.offsetHeight > parent.offsetHeight + parent.scrollTop){
parent.scrollTop = ele.offsetTop;
} else if(parent.scrollTop > ele.offsetTop) {
parent.scrollTop = ele.offsetTop;
}
}
});
}
}
});
<input type="text" ng-model="inquiry.account"
placeholder="Select Account"
typeahead="account.id as account.text for account in account_typeahead_json"
typeahead-input-formatter="formatModel($model,$label)"
typeahead-editable="false" typeahead-on-down-arrow typeahead-focus />
希望这个答案对你有所帮助。
ui-bootstrap.js