change font size with command shortcuts

[jhaynie]

Change the font size for the window with standard command + or -

[montogeek]

command+= is Cmd + +?

[rauchg]

This is brilliant. We should probably memorize the option @jhaynie. Perhaps localStorage?

[johanbrook]

👍.

@rauchg Regarding memorizing the option, that should ideally live in some sort of global config somewhere? (out of scope for this PR, but still). Perhaps related to the hyperterm.json mentioned in #14.

[rauchg]

On further reflection, it'd be cool to register it as menu accelerators:

[rauchg]

@johanbrook yes, was thinking exactly that. But in order to make quick progress I'd like to use localStorage for now and merge this sooner rather than later.

[sindresorhus]

This functions are almost identical. I would DRY them up into one that accepted an argument of whether to increment or decrement.

[montogeek]

It should also support switch back to the default size

[jhaynie]

i'll add the menu accelerators and DRY up the functions. I think we should memoize these in a separate PR to keep this one focused.

[jhaynie]

OK, i added reset behavior and added window shortcuts and DRY up code.

[rauchg]

@jhaynie this is beyond beautiful and it works flawlessly. Only nit: we need to let the user know about the font change.

Here's my suggestion (it's shown alongside the columns and rows since font changes trigger a resize)

[rauchg]

Another minor nit: from the perspective of <HyperTerm> it'd be more elegant if we simply alter <Term fontSize={this.state.fontSize} /> in the render loop.

Then we can capture it in shouldComponentUpdate and manually perform the transformation on the local term reference and return false.

[rauchg]

I'm filing issues for these two things.