我有一个指令,这是代码:
.directive('map', function() {
return {
restrict: 'E',
replace: true,
template: '<div></div>',
link: function($scope, element, attrs) {
var center = new google.maps.LatLng(50.1, 14.4);
$scope.map_options = {
zoom: 14,
center: center,
mapTypeId: google.maps.MapTypeId.ROADMAP
};
// create map
var map = new google.maps.Map(document.getElementById(attrs.id), $scope.map_options);
var dirService= new google.maps.DirectionsService();
var dirRenderer= new google.maps.DirectionsRenderer()
var showDirections = function(dirResult, dirStatus) {
if (dirStatus != google.maps.DirectionsStatus.OK) {
alert('Directions failed: ' + dirStatus);
return;
}
// Show directions
dirRenderer.setMap(map);
//$scope.dirRenderer.setPanel(Demo.dirContainer);
dirRenderer.setDirections(dirResult);
};
// Watch
var updateMap = function(){
dirService.route($scope.dirRequest, showDirections);
};
$scope.$watch('dirRequest.origin', updateMap);
google.maps.event.addListener(map, 'zoom_changed', function() {
$scope.map_options.zoom = map.getZoom();
});
dirService.route($scope.dirRequest, showDirections);
}
}
})
我想打电话updateMap()
关于用户操作。操作按钮不在指令上。
最好的通话方式是什么updateMap()
来自控制器?
如果您想使用隔离范围,您可以使用双向绑定传递控制对象=
来自控制器范围的变量。您还可以使用相同的控制对象控制页面上同一指令的多个实例。
angular.module('directiveControlDemo', [])
.controller('MainCtrl', function($scope) {
$scope.focusinControl = {};
})
.directive('focusin', function factory() {
return {
restrict: 'E',
replace: true,
template: '<div>A:{{internalControl}}</div>',
scope: {
control: '='
},
link: function(scope, element, attrs) {
scope.internalControl = scope.control || {};
scope.internalControl.takenTablets = 0;
scope.internalControl.takeTablet = function() {
scope.internalControl.takenTablets += 1;
}
}
};
});
<script src="https://ajax.googleapis.com/ajax/libs/angularjs/1.2.23/angular.min.js"></script>
<div ng-app="directiveControlDemo">
<div ng-controller="MainCtrl">
<button ng-click="focusinControl.takeTablet()">Call directive function</button>
<p>
<b>In controller scope:</b>
{{focusinControl}}
</p>
<p>
<b>In directive scope:</b>
<focusin control="focusinControl"></focusin>
</p>
<p>
<b>Without control object:</b>
<focusin></focusin>
</p>
</div>
</div>
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