Question

我正在尝试编写一个打开angular-ui模态窗口的函数，并在它关闭后返回一个promise。这通常很简单，你返回模态实例，但在这种情况下，即使窗口是关闭属性，我想检查.then（）函数内的响应，并可能根据状态代码拒绝承诺，即使它已经成功了。

这可能没什么意义，所以这里有一些代码......

// Function which should return a promise
var myFunc = function(){

    var modalInstance = $modal.open({
        templateUrl: 'xxx',
        controller: 'yyy',
    });

    return modalInstance.result.then(function (result) {

        // If the login was successful then resolve
        if(result && result.success === true){

            // What goes here?

        }

        // If it was uncuccessful then reject, even though it was closed successfully.
        else{

            // What goes here?

        }


    }, function () {
        $log.info('Modal was closed unsuccessfully');
    });


}


myFunc.then(function(){
    // DO something
});

Answer 1

您可以返回一个新的承诺，只有在$ modalInstance.result的承诺得到解决并且您的状态代码检查良好时才会得到解决。有点像：

var myFunc = function(){

    var modalInstance = $modal.open({
        templateUrl: 'xxx',
        controller: 'yyy',
    });

    var deferred = $q.defer();
    modalInstance.result.then(function() {
        if (/* status code checks ok */) {
            deferred.resolve();
        }
        else {
            deferred.reject();
        }
    }, function() { 
        deferred.reject();
    });

    return deferred.promise;
}

请参阅docs on $q。

Angular - 返回$ modal承诺并拒绝它

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