How do you cancel job1 completely before its timeout value occur?

[gertcuykens]

https://www.polymer-project.org/docs/polymer/polymer.html#job

this.responseChanged = function() {
  this.job('job1', function() { // first arg is the name of the "job"
    this.fire('done');
  }, 500);
}

[ebidel]

job() is for debouncing. Presumably you want whatever you're wrapping to be called at least once. If you want a cancelable call, try async() which can be canceled using cancelAsync():

https://github.com/Polymer/polymer/blob/87b3815812aaa9f956f044e74d43460b1babee5f/src/instance/utils.js#L53

We need to document this method: #848

[gertcuykens]

Let say you have a hover in and hover out where the hover toaster get a delay before it disappears after a hover out. But when you hover back in quick enough you need to cancel that job of disappearing.

The thing about async() is that it doesn't cancel itself when you hover in out in multiple times before the timeout like job() does?

[gertcuykens]

Currently I do it like this

            in: function (e){
                this.cancel=true
                document.querySelector('my-hover').fire('my-hover-in', {'title': title})
            },

            out: function (e){
                this.cancel=false
                this.job('myJob', function() {
                    if (this.cancel) return 0
                    document.querySelector('my-hover').fire('my-hover-out')
                }, 500);
            },

But this would be nicer

            in: function (e){
                this.jobCancel('myJob')
                document.querySelector('my-hover').fire('my-hover-in', {'title': title})
            },

            out: function (e){
                this.job('myJob', function() {
                    document.querySelector('my-hover').fire('my-hover-out')
                }, 500);
            },

[arthurevans]

A little code poking reveals an alternate way of invoking job, using a job handle instead of a string. You can use the handle to stop the job, like this:

this.myjob = this.job(this.myjob, function);
this.myjob.stop();

Big caveat -- this syntax may be deprecated:

https://github.com/Polymer/polymer/blob/87b3815812aaa9f956f044e74d43460b1babee5f/src/instance/base.js#L52
https://github.com/Polymer/polymer/blob/master/src/lib/job.js#L41

It would be pretty trivial to add a cancelJob method. What say you, @sjmiles ?

[gertcuykens]

Great thanks, I would never tought of that

PS Actually I would deprecate this part haha :)

var n = '___' + job;
this[n] = Polymer.job.call(this, this[n], callback, wait);

not the following part because it is nicer and does not mess with polymer internals.

return Polymer.job.call(this, job, callback, wait);

[ebidel]

This issue has gone stale. Marking as obsolete.

[gertcuykens]

I am happy the github issues are getting cleaned up. I know you all have things to do and I also know allot of them are invalid, but still every open issue is a frustrated user and every polymer team member should know that even if it is not there fault.

[arthurevans]

Talked to core folks. I'm going to re-open and move this to Polymer/polymer as an 0.8 feature request.

[arthurevans]

This issue was moved to Polymer/polymer#1374