Javascript 角接退格压力机
我正试图通过Javascript 角接退格压力机,javascript,angularjs,Javascript,Angularjs,我正试图通过ngKeypress、ngkeypdown和ngkeypup捕捉backspace按键,然后提问 这是我的HTML: <input name="inputText" type="text" class="{{schema.class.control_part_class}} form-control" data-ng-model="data[schema.model]" ng-keydown = "c
ngKeypress
、ngkeypdown
和ngkeypup
捕捉backspace
按键,然后提问
这是我的HTML:
<input
name="inputText"
type="text"
class="{{schema.class.control_part_class}} form-control"
data-ng-model="data[schema.model]"
ng-keydown = "changeInput($event)">
</input>
我尝试过在ngKeypress
、ngKeydown
和ngkeydup
之间进行替换,但都不起作用
完整代码:
html
在控制器中
我为您的代码编写了一个干净的示例,它似乎很有效
JavaScript:
HTML:
JSFiddle:
在指令中 如果要将
封装到指令中,可以使用以下代码:
HTML:
JavaScript:
angular.module('myApp',[])
.controller('TestController',['$log',TestController])
.directive('testElement',['$log',testElement]);
函数TestController($log){
$log.log(“控制器已加载”);
}
函数testElement($log){
返回{
限制:'E',
模板:“”,
链接:功能(范围){
scope.changeInput=函数(e){
$log.log('scope',scope);//scope
$log.log(e);//适用于任何其他密钥
如果(如keyCode===8){
//退格键码
$log.log('backspace');
}
}
}
};
}
jsiddle:发生了什么?函数是否被调用?输出是什么?注意,甚至不是changeInput函数。发布整个代码。同时添加控制器?如果您调用了指令isrTextField,为什么我在html代码中看不到任何对isr文本字段的引用?如果我想将其保留在指令中(使其更干净),还有其他选项吗?@Itsikmauy我添加了一个简单的解决方案,我把代码移到了指令中。
scope.changeInput = function(e){
$log.log('scope', scope); //scope
$log.log('cont', controller); //controller
$log.log(e); //works for any other key
if(e.keyCode === 8){
//keycode for backspace
$log.log('backspace')
}
};
<div form-field-injector schema="vm.schema" data="vm.data">
<span class="star-color-red" ng-show="schema.validation.required">*</span>
<label class="{{schema.class.label_part_class}} label-control">{{::schema.name}}
</label>
<input
name="inputText"
type="text"
class="{{schema.class.control_part_class}} form-control"
data-ng-model="data[schema.model]"
data-ng-model-options="{ debounce: 300 }"
data-ng-disabled="{{::schema.disabled}}"
ng-keydown = "changeInput($event)"></input>
(function () {
'use strict';
function IsrTextField($log, $compile, $templateRequest) {
$log = $log.getInstance('IsrTextField.directive', true);
$log.debug("load()");
var _templateUrl = 'common/directives/isr-text-field/templates/isr.text.field.tpl.html';
var _inputElement = null;
function _link(scope, iElem, iAttrs, controller) {
$log.log('scope input', scope);
function _onBlur() {
$log.debug("_onBlur()");
controller.eventRunner(controller.schema.events.on_blur.action, {
item: controller.schema.events.on_blur.args
});
}
scope.changeInput = function(e){
$log.log('scope', scope); //scope
$log.log('cont', controller); //controller
$log.log(e); //works for any other key
if(e.keyCode === 8){
//keycode for backspace
$log.log('backspace')
}
};
//1. request template from server
// Load the html through $templateRequest
$templateRequest(_templateUrl)
.then(function success(html) {
// Convert the html to an actual DOM node
var template = angular.element(html);
// Append it to the directive element
iElem.append(template);
// 1. get input element from template
_inputElement = $('.form-control', iElem);
if (!_inputElement) {
$log.warn("there is no .form-control element class");
return;
}
// set template attributes from schema (before compile)
if (controller.schema.modelOptions) {
_inputElement.attr("data-ng-model-options", controller.schema.modelOptions);
}
// set events/bind from schema
if (controller.schema.events && controller.schema.events.on_blur) {
if (controller.schema.events.on_blur.action) {
_inputElement.on('blur', _onBlur);
}
}
// And let Angular $compile it
$compile(template)(scope);
}, function failure(error){
$log.error(error);
});
// cleanup
scope.$on('$destroy',
function destroy() {
$log.debug("destroy()");
if (_inputElement) {
_inputElement.off('blur', _onBlur);
_inputElement = null;
}
});
}
var directive = {
restrict: 'EA',
scope: {
schema: '=',
data: '='
},
controller: 'isrTextFieldController',
controllerAs: 'vm',
bindToController: true,
link: _link
};
return directive;
}
angular
.module('common')
.directive('isrTextField', IsrTextField);
})();
angular.module('myApp', [])
.controller('TestController', TestController);
function TestController($scope, $log) {
$scope.changeInput = function(e) {
$log.log('scope', $scope); //scope
$log.log(e); //works for any other key
if (e.keyCode === 8) {
//keycode for backspace
$log.log('backspace');
}
};
}
<div ng-controller="TestController as test">
<input name="inputText"
type="text"
ng-keyup="changeInput($event)">
</div>
<div ng-controller="TestController as test">
<test-element></test-element>
</div>
angular.module('myApp', [])
.controller('TestController', ['$log', TestController])
.directive('testElement', ['$log', testElement]);
function TestController($log) {
$log.log("Controller loaded");
}
function testElement($log) {
return {
restrict: 'E',
template: '<input name="inputText" type="text" ng-keyup="changeInput($event)">',
link: function(scope) {
scope.changeInput = function(e) {
$log.log('scope', scope); //scope
$log.log(e); //works for any other key
if(e.keyCode === 8) {
//keycode for backspace
$log.log('backspace');
}
}
}
};
}