问题
In AngularJS, is there any way to make an ng-click dependent upon a boolean?
For example, I'd like the following text ("Click") to be clickable, but only when some scope property (e.g., $rootScope.enableClick) is true.
<div ng-click="count = count + 1" ng-init="count=0">Click</div>
Preferably, is there a straightforward way to do this without creating a custom directive?
回答1:
Use the strange and wonderfull && logical operator in the ng-click expression:
<div ng-click="!stop && (count = count + 1)">Click me</div>
The DEMO
.clickable {
cursor: pointer;
}<script src="//unpkg.com/angular/angular.js"></script>
<body ng-app ng-init="count=0">
<div ng-click="!stop && (count = count + 1)" class="clickable" >Click Me</div>
<div>Count={{count}}</div>
<input type="checkbox" ng-model="stop">Stop counting<br>
</body>Update
Or use a button with the ng-disabled directive:
<button ng-click="count = count + 1" ng-disabled="stop" >Click Me</button>
The ng-disabled directive does not work with <div> elements. The disabled property is not a global attribute. The ng-disabled directive only works with <input>, <button>, <textarea>, and <select> elements as those elements support the disabled property.
The DEMO
<script src="//unpkg.com/angular/angular.js"></script>
<body ng-app ng-init="count=0">
<button ng-click="count = count + 1" ng-disabled="stop" >Click Me</button>
<div>Count={{count}}</div>
<input type="checkbox" ng-model="stop">Stop counting<br>
</body>回答2:
Check this out, I have used the same method as @georgeawg used. The difference is that I have made it as a button format and used pointer-events: none so that no click event will be triggered from the .clickable
.clickable {
cursor: pointer;
display: inline-block;
width: 200px;
text-align: center;
padding: 10px;
background-color: #eee;
transition: all 0.3s ease;
margin: 10px 0;
}
.clickable:hover {
background-color: #ddd;
}
.test {
color: grey;
pointer-events: none;
}<script src="//unpkg.com/angular/angular.js"></script>
<body ng-app ng-init="count=0">
<div>Count={{count}}</div>
<div ng-click="count = count + 1" ng-class="{'test': stop}" class="clickable">Click Me</div>
<div>
<input type="checkbox" ng-model="stop">Stop counting
</div>
</body>回答3:
Try
<div ng-click="count = count + 1" ng-init="count=0" ng-disabled="!enableClick">Click</div>
The ng-disabled directive sets the disabled attribute of a form field (input, select, or textarea).
来源：https://stackoverflow.com/questions/51845858/angularjs-disable-ngclick