我发布了我的html和指令代码。我有两个跨度,我附加ng-click
。在ng-click
我想检查其父项父项(.parent-portlet
)的类,但到目前为止我所做的并不正常,因为所有父portlet都被选中而不是只选择当前的那个。
<div class="parent-portlet {{portlet.class}} {{portlet.class2}}" ng-mouseenter="hoverIn($event)" ng-mouseleave="hoverOut($event)">
<div class="portlet-titlebar" ng-click="toggleCollapsed($event)">
<span class="remove" ng-click="removePortlet(portlet)">
Remove
</span>
<span class="add-back" ng-click="addPortlet(portlet)">
Add Back
</span>
</div>
</div>
这就是我在指令中所拥有的:
scope.removePortlet = function(portlet) {
var port = $('.remove').parent().parent();
port.addClass('removed');
port.addClass('edit-portlet');
};
scope.addPortlet = function(portlet) {
var port = $('.add-back').parent().parent();
if (portlet.hasClass('removed')) {
port.removeClass('removed');
port.removeClass('edit-portlet');
}
};
此代码的问题是var portlet 捕获所有portlet(父级),我想只捕获与click操作相关的那个。我怎样才能做到这一点?我试着把它传递给我的jquery select如下:
var portlet = $('.add-back', this).parent().parent();
但这不起作用。任何想法如何实现这一目标?
提前致谢。
答案 0 :(得分:0)
您可以将$element
注入您的控制器,然后将其用作$
选择器的上下文。
angular.module('app', []).controller('ctrl', function($scope, $element) {
$scope.addPortlet = function(portlet) {
console.log($('.add-back', $element));
};
});
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<script src="https://ajax.googleapis.com/ajax/libs/angularjs/1.2.23/angular.min.js"></script>
<div ng-app="app" ng-controller="ctrl">
<div class="parent-portlet">
<div class="portlet-titlebar" ng-click="toggleCollapsed($event)">
<span class="remove" ng-click="removePortlet(portlet)">
Remove
</span>
<span class="add-back" ng-click="addPortlet(portlet)">
Add Back
</span>
</div>
</div>
</div>
答案 1 :(得分:0)
将$ event传递给ng-click,如下所示:
<span ng-click="removePortlet($event)"></span>
然后,只需修改你的代码:
scope.removePortlet = function(ev) {
var port = $(ev.target).parent().parent();
port.addClass('removed');
port.addClass('edit-portlet');
};
scope.addPortlet = function(ev) {
var port = $(ev.target).parent().parent();
if ($(ev.target).hasClass('removed')) {
port.removeClass('removed');
port.removeClass('edit-portlet');
}
};
抓住“事件的目标”将确保您只处理实际点击的项目。请注意,angular使用$ event将事件传递给函数。
我还会使用.closest()将类修改行和目标特定父级(如果你曾经修改过DOM)结合起来进行清理:
scope.removePortlet = function(ev) {
var port = $(ev.target).closest('.parent-portlet');
port.addClass('removed, edit-portlet');
};
scope.addPortlet = function(ev) {
var port = $(ev.target).closest('.parent-portlet');
if (portlet.hasClass('removed')) {
port.removeClass('removed, edit-portlet');
}
};
答案 2 :(得分:0)
请改用ng-class
。以下是使用类更改背景颜色的示例:
var app = angular.module('plunker', []);
app.controller('MainCtrl', function($scope) {
$scope.portlet = {
classes: {
"parent-portlet": true,
"edit-portlet": false,
"removed": false
}
}
$scope.removePortlet = function(portlet) {
portlet.classes.removed = true;
portlet.classes["edit-portlet"] = true;
};
$scope.addPortlet = function(portlet) {
portlet.classes.removed = false;
portlet.classes["edit-portlet"] = false;
};
});
/* Put your css in here */
.parent-portlet {
background-color: #ccc;
padding: 20px;
}
.parent-portlet.removed {
background-color: #c00;
}
.parent-portlet button {
padding: 10px;
margin: 0 10px;
}
<!DOCTYPE html>
<html ng-app="plunker">
<head>
<script data-require="angular.js@1.5.x" src="https://cdnjs.cloudflare.com/ajax/libs/angular.js/1.5.11/angular.min.js" data-semver="1.5.11"></script>
</head>
<body ng-controller="MainCtrl">
<div ng-class="portlet.classes">
<div class="portlet-titlebar">
<button class="remove" ng-click="removePortlet(portlet)">
Remove
</button>
<button class="add-back" ng-click="addPortlet(portlet)">
Add Back
</button>
</div>
</div>
</body>
</html>