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如何在多個模板中訪問控制器變量

[英]How to access controller-variables in multiple templates

嗨,我是Angular JS的新手,我試圖通過顯示或隱藏填充整個屏幕的div來創建“燈箱”。 但是,“ ng-click”事件和div位於不同的模板上。

第一個模板(應該顯示div的位置):

<body ng-app="portfolio" ng-controller="lightboxController" >

<div ng-show="lightbox" class="lightbox">
    <p ng-click="checkLightbox()">go back</p>

    <p>{{message}}</p>

</div>



        <div class="top-menu">
            <a href="#portfolio" class="top-menu-button">portfolio</a>
            <a href="#about" class="top-menu-button">about</a>
            <a href="#contact" class="top-menu-button">contact</a>
        </div>


        <div id="content-wrapper">
            <div id="main-content">
                <div ng-view></div>
            </div>
        </div>



</body>

相關控制器:

app.controller('lightboxController', function($scope) {

    $scope.checkLightbox = function(){

        $scope.lightbox;

        lightbox= !lightbox;

        console.log(lightbox);

    };
    $scope.message = 'Everyone come and see how good I look!';


});

第二個模板(ng-click事件所在的位置):

        <div class="grid">

            <div class="grid-item dreiD video" ng-click="checkLightbox()">
                <img src="data/portfolio/logo-animation/thumb.gif" class="thumb"/>

錯誤消息顯示: ReferenceError:燈箱未定義

我不太確定您的checkLightbox()方法應該做什么。

但是,如果要使其可重用,最好的解決方案是將checkLightbox功能重構為可重用的指令。

像這樣:

function checkLightbox() {
    return {
        restrict: 'A',
        link: function(scope, element, attrs) {

             element.on('click', function() {

                 // add your code here
             })
        }
    }
}


app.directive('checkLightbox', checkLightbox);

現在,您可以通過在任意位置添加check-lightbox屬性來在視圖中的任何位置使用此功能。

        <div class="grid">

        <div class="grid-item dreiD video" check-lightbox> 
            <img src="data/portfolio/logo-animation/thumb.gif" class="thumb"/>

請執行以下操作:您的html看起來像

    <body ng-app="app" ng-controller="lightboxController" >
    <div ng-show="lightbox" class="lightbox">
    <p ng-click="checkLightbox()">go back</p>

    <p>{{message}}</p>

</div>
  <div class="top-menu">
            <a href="#portfolio" class="top-menu-button">portfolio</a>
            <a href="#about" class="top-menu-button">about</a>
            <a href="#contact" class="top-menu-button">contact</a>
        </div>
        <div id="content-wrapper">
            <div id="main-content">
                <div ng-view></div>
            </div>
        </div>
  <div class="grid">
    <div class="grid-item dreiD video" ng-click="checkLightbox()">
      <img src="data/portfolio/logo-animation/thumb.gif" class="thumb"/>
    </div>
  </div>
</body>

角度控制器看起來像:

var app = angular.module('app', []);
app.controller('lightboxController', function($scope) {

    $scope.checkLightbox = function(){

        $scope.lightbox;

        $scope.lightbox= !$scope.lightbox;

        console.log(lightbox);

    };
    $scope.message = 'Everyone come and see how good I look!';
});

您可以點擊這里運行

需要在任何其他控制器中使用它們時,請在$ rootScope中聲明函數或變量。

將您的控制器轉換為工廠,並在$ rootScope級別創建作用域:

app.factory('lightboxController', ['$rootScope', function($rootScope) {

$rootScope.checkLightbox = function(){

    $rootScope.lightbox;

    lightbox= !lightbox;

    console.log(lightbox);

};
$rootScope.message = 'Everyone come and see how good I look!';


}]);

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