matTextareaAutosize does not get updated on window resize

[qstiegler]

Bug, feature request, or proposal:

matTextareaAutosize does not update the length when window dimensions are changing. The textarea then is either not displaying the whole content or is higher then the required lines for the content.

What is the expected behavior?

It should resize when changing the dimensions of the window.

Which versions of Angular, Material, OS, TypeScript, browsers are affected?

Angular 5.0.0
Material 5.0.0-rc.1
TypeScript 2.4.2
Chrome 62

[qstiegler]

I had an additional issue with the matTextareaAutosize directive. I´m now already using this fix for the resizing issue, but the initial size calculation is not working in my case.

Even if the initial trigger in the directive gets called in the ngAfterViewInit method, I needed to replace the initial call of the this.resizeToFitContent() in src/lib/input/autosize.ts:92 by setTimeout(() => this.resizeToFitContent(true), 0); otherwise my content was not ready. Do you have an idea to optimize that?

[qstiegler]

Update: I do not longer need the setTimout around the anymore but I need the force flag at this call src/lib/input/autosize.ts:92. Otherwise sometimes the initial height calculation is wrong and it gets updated after the first value change or window resize event.

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