Integrate plugin suppression into plugins screen

[schlessera]

Feature description

On the plugins screen in the WordPress admin backend, I'd expect to see information about plugin suppression.

Some form of feedback should be shown in the row of each of the currently suppressed plugins. Clicking on that feedback should probably bring me to the plugin suppression section in the AMP Settings screen, as I'd see all contextual information there.

Also, the top filter row should also include the Suppressed for AMP (x) filter.

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Acceptance criteria

Implementation brief

QA testing instructions

Demo

Changelog entry

[westonruter]

This was also referenced in the original issue (#4477):

• Alternatively, the UI to deactivate plugins in AMP responses could be integrated into the plugin list table.

[westonruter]

I suppose we'd need to have a new column for “AMP Suppression” as well similar to how there is now a new column for “Automatic Updates”? Should the suppressed state be similarly toggleable as “Enable auto-updates” and “Disable auto-updates”?

[jwold]

• AL > Simple integration to plugin screen to give info there, and in the AMP settings. Have filters at top to show installed plugins, inactive, etc. Could have one for suppressed plugins.
• WR > Useful to get info out of AMP settings screen so users more likely to see it. If you have an advertisement plugin running, suppressed it, and come back later wondering where your ads are, and go to plugin to see, you see it's active, but if it doesn't say it's suppressed you'd be confused.
• WR > Even saying "this is being suppressed on AMP pages" would be a nice thing to have.
• AS > Info should be easily available from the database, so it's probably easy to integrate.
• JW > New column or put status in description.
• AS > Could also examine; I already did something like this for fatal error recovery mode in WordPress. So basically when a plugin throws a fatal error, then you can login to admin dashboard, and if you go to plugin screen it shows what plugins were paused in their execution to still make admin dashboard. Fatal error recovery mode forces execution of plugins, they remain active but not loaded on page load that is protected. Plugin screen shows that with a state and has filtered list at top of all plugins that are paused.
• AS > Create fatal error in plugin active on site by renaming class name, add a few letters into class name in PHP file, if you do page reload you'd get white screen of death from WP, and then you can still login to admin backend, and it will have that plugin be paused.

[jwold]

@jwold to pull a screenshot of fatal error from plugin to propose how AMP would handle this.

[jwold]

Related from Alain: https://core.trac.wordpress.org/ticket/44458

[westonruter]

@dhaval-parekh Instead of adding an entire new column, since we're not adding the ability to suppress the plugins from this screen I think it would be suitable just to add a “Suppressed on AMP Pages” link to the plugin meta links when a plugin is suppressed.