使用打字稿从回调中获取控制器引用

Get controller reference from callback using typescript

本文关键字:获取 控制器 引用 回调      更新时间:2023-09-26

我有以下简单的控制器,它使用指令/组件并将函数作为绑定传递。

当调用函数时,我没有引用使用任何控制器类服务。

在这种情况下,在我的控制器public onTileClicked功能中,我无法访问tileService

控制器 js:

namespace app.dashboard {
    'use strict';
    export class DashboardController {
        static $inject:Array<string> = ['$q', 'logger', 'tileService'];
        constructor(private $q:ng.IQService,
                    private tileService:TileService) {
        }
        public tiles:Array<ITile> = [];
        public onTileClicked(tile:ITile) {                
            this.tileService.getTiles(tile.ID) // No access to tileService
                .then((data)=> {
                    this.tiles = data; // Won't have access to this.tiles
                })
        }
    }
    angular
        .module('app.dashboard')
        .controller('DashboardController', DashboardController);
}

控制器 html:

<div class="tiles-container">
    <tile-component ng-repeat="tile in DashboardCtrl.tiles" tile="tile"
                    on-tile-clicked="DashboardCtrl.onTileClicked">
    </tile-component>
</div>

指令 js:

class TileComponent {
    tile:ITile;
    onTileClicked:Function;
    /* @ngInject */
    constructor() {
    }
    tileClicked() {
        this.onTileClicked()(this.tile);
    }
}
angular.module('app.dashboard')
.component('tileComponent', {
    templateUrl: 'app/dashboard/directives/tile.html',
    controller: TileComponent,
    controllerAs: 'tileCtrl',
    bindings: {
        tile: '<',
        onTileClicked: "&"
    }
});

onTileClicked js:

DashboardController.prototype.onTileClicked = function (tile) {
    var _this = this;
    this.tileService.getTiles(tile.ID)
        .then(function (tiles) {
        _this.tiles = tiles;
    });
};

你对函数的绑定(在 html 中)是错误的。您错过了括号:

<tile-component ng-repeat="tile in DashboardCtrl.tiles" tile="tile"
                on-tile-clicked="DashboardCtrl.onTileClicked()"> <!-- HERE -->
</tile-component>