我有一个具有局部范围的指令,其中部分包含ng-click.
小提琴在那里：http://jsfiddle.net/stephanedeluca/QRZFs/13/
不幸的是,由于我将代码移动到指令中,因此ng-click不再触发.
控制器和指令如下：
var app = angular.module('myApp',['ngSanitize']);
app.directive('plantStages',function ($compile) {
return {
restrict: 'E',transclude: true,template: '<figure class="cornStages">\
<p ng-transclude style="color: skyblue"></p>\
<hr/>\
<p ng-bind-html="title"></p>\
<p ng-bind-html="subtitle">{{subtitle}}</p>\
<ul>\
<li ng-repeat="stage in stages" ng-click="changePage(stage)">{{stage}}</li>\
</ul>\
</figure>',scope: {
stages:"=",title:'@'
},link: function (scope,element,attrs,ctrl,transclude) {
if (!attrs.title) scope.title = "Default title";
}
};
});
app.controller('myCtrl',function ($scope,$location,$http) {
$scope.stages = ['floraison','montaison'];
$scope.changePage = function (page) {
var url = "corn.page.html#/"+page;
console.log("Change page "+page+" with url "+url);
alert("about to change page as follows: document.location.href = "+url);
};
});
调用它的html如下：
<div ng-controller="myCtrl">
Stages,<p ng-repeat="stage in stages">{{stage}}</p>
<hr/>
Plant stages
<plant-stages
title="<b>Exploration<br/>du cycle</b>"
subtitle="<em>This is a<br/>sub title</em>"
stages="stages"
>
Inner<br/>directive
</plant-stages>
</div>
任何的想法？
解决方法
您不能直接从指令访问控制器范围中定义的changePage(),因为您的指令具有隔离范围.但是,仍有几种方法可以做到：
选项1：
选项1是最简单的选择.然而,这很像一个解决方法,我不建议广泛使用它.您可以从传递给链接功能的元素获取控制器的范围,并在那里调用changePage：
link: function (scope,transclude) { if (!attrs.title) scope.title = "Default title"; scope.changePage = element.scope().changePage; // <= Get parent scope from element,it will have changePage() }
选项2：
如果您没有任何涉及在外部控制器中定义范围的逻辑(如您的示例中所示),则可以为您的指令定义内部控制器并在那里执行：
app.directive('plantStages',function ($compile) {
return {
...
controller: ['$scope',function($scope) {
$scope.changePage = function(page) {
var url = "corn.page.html#/"+page;
console.log("Change page "+page+" with url "+url);
alert("about to change page as follows: document.location.href = "+url);
}
}]
};
});
选项3：
如果你想在不同的指令和控制器中重用changePage()中定义的逻辑,最好的方法是将逻辑移动到可能注入到控制器和指令的某个服务：
app.service('changePageService',function() {
this.changePage = function(page) {
var url = "corn.page.html#/"+page;
console.log("Change page "+page+" with url "+url);
alert("about to change page as follows: document.location.href = "+url);
}
});
app.controller('myCtrl',$http,changePageService) {
...
changePageService.changePage('page');
...
});
app.directive('plantStages',function ($compile) {
...
controller: ['$scope','changePageService',function($scope,changePageService) {
$scope.changePage = changePageService.changePage;
}]
...
});
选项4：
您可以将一些代码(如changePage(页面))作为指令的某些属性的值传递,并将指令定义范围属性传递给’&’这将创建一个函数,该函数将在外部控制器的作用域中执行,并且参数传递给该函数.例：
JavaScript的
app.directive('plantStages',template: '<figure class="cornStages">\
<p ng-transclude style="color: skyblue"></p>\
<hr/>\
<p ng-bind-html="title"></p>\
<p ng-bind-html="subtitle"></p>\
<ul>\
<li ng-repeat="stage in stages" ng-click="changePage({page: stage})">{{stage}}</li>\
</ul>\
</figure>',title:'@',changePage:'&'
},transclude) {
if (!attrs.title) scope.title = "Default title";
}
};
});
HTML
<div ng-controller="myCtrl">
Stages,<p ng-repeat="stage in stages">{{stage}}</p>
<hr/>
Plant stages
<plant-stages
title="<b>Exploration<br/>du cycle</b>"
subtitle="<em>This is a<br/>sub title</em>"
stages="stages"
change-page="changePage(page)"
>
Inner<br/>directive
</plant-stages>
