Press This: Enable mobile web app view

[kraftbj]

Android and iOS allow meta tags to be used to activate various features to allow web apps to mimic native mobile apps.

Ref: ​https://developer.chrome.com/multidevice/android/installtohomescreen
​https://developer.apple.com/library/ios/documentation/AppleApplications/Reference/SafariWebContent/ConfiguringWebApplications/ConfiguringWebApplications.html

What features should we add to Core to make the Press This mobile experience better?

[kraftbj]

1st pass

[kraftbj]

33195.diff is a first pass at this.

I set it up as an array to make it easier to filter. The foreach loop can probably just be replaced with echo implode( "\n", $web_app_meta );. Not really sure if there's a preference per Core for either method.

These meta tags are currently in the wild in the ​Press This Extended plugin.

[kraftbj]

Chat regarding supporting startup/loading image on iOS:
​https://wordpress.slack.com/archives/core-pressthis/p1438273255000018

tl;dr - to support all iOS devices, we'd need 10 different images, which could be hosted on w.org to avoid bloating the download package. Fine to compromise and only support the more modern devices.

[michaelarestad]

to support all iOS devices, we'd need 10 different images, which could be hosted on w.org to avoid bloating the download package. Fine to compromise and only support the more modern devices.

I don't think it would be super hard to do all 10 if needed, but I agree that we should start small and support the more modern devices.

[kraftbj]

With PT being moved to a plugin, this issue is moving to ​https://github.com/WordPress/press-this/issues/2