CODEWITHSUNDEEP
angularjs
user3568783
user3568783

Reputation:

How can I change my buttons to disabled if a retrieve takes more than a second?

I have a form on my application with a button for retrieve. When a user clicks the button then data is retrieved. This could be almost instant or take several seconds. What I would like is for the button to be disabled if the retrieve has been in progress for more than 1 second. Here's what I have so far:

In my application controller:

this.state = {};

In a child controller:

this.retrieve = function () {
            app.state.get = true;

            $http({
                url: '/api/TestData',
                method: "GET"
            }).success(function (result) {
                app.state.get = false;
            });
        };

In the HTML I have:

<button ng-disabled="app.state.get"
        ng-click="test.retrieve()">
   Retrieve
</button>
<button ng-disabled="app.state.get">
   Another button
</button>
<button ng-disabled="app.state.get">
   Another button
</button>

There's more to the application but this is the basics of what I have. Note that I actually have a few buttons and controls and I would like them all to be disabled.

I now I could use something like a request interceptor but the problem I am trying to address is how can I put some delay on the disabling of the buttons and other controls.

Any help and suggestions thanks in advance.

Upvotes: 0

Views: 568

Answers (2)

Alp
Alp

Reputation: 29739

There is an alternative to disabling the button:

Throttle the execution of web requests.

Underscore has great utils to do that. The method is called throttle().

Example:

    var getData = function () {
        app.state.get = true;

        $http({
            url: '/api/TestData',
            method: "GET"
        }).success(function (result) {
            app.state.get = false;
        });
    };
    this.retrieve = _.throttle(getData, 1000);

Now, the method will only be executed at most once per second, no matter how often someone clicks on the button. The first request will be made immediately.

Upvotes: 0

Nidhish Krishnan
Nidhish Krishnan

Reputation: 20751

Try using: $timeout

Angular's wrapper for window.setTimeout. The fn function is wrapped into a try/catch block and delegates any exceptions to $exceptionHandler service.

$timeout(fn[, delay][, invokeApply]);

A Sample Example is here

If you want to disable the button after 3 seconds try like

Script

$http({
        url: '/api/TestData',
           method: "GET"
      }).success(function (result) {
            $timeout(function(){app.state.get = false}, 3000);  
      });

But as what @Alp said, why do you need to delay the button disabling

Upvotes: 1

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