Summary:
This adds support for bundling custom widgets with the Grist app, as follows:
* Adds a new `widgets` component to plugins mechanism.
* When a set of widgets is provided in a plugin, the html/js/css assets for those widgets are served on the existing untrusted user content port.
* Any bundled `grist-plugin-api.js` will be served with the Grist app's own version of that file. It is important that bundled widgets not refer to https://docs.getgrist.com for the plugin js, since they must be capable of working offline.
* The logic for configuring that port is updated a bit.
* I removed the CustomAttachedView class in favor of applying settings of bundled custom widgets more directly, without modification on view.
Any Grist installation via docker will need an extra step now, since there is an extra port that needs exposing for full functionality. I did add a `GRIST_TRUST_PLUGINS` option for anyone who really doesn't want to do this, and would prefer to trust the plugins and have them served on the same port.
Actually making use of bundling will be another step. It'll be important to mesh it with our SaaS's use of APP_STATIC_URL for serving most static assets.
Design sketch: https://grist.quip.com/bJlWACWzr2R9/Bundled-custom-widgets
Test Plan: added a test
Reviewers: georgegevoian
Reviewed By: georgegevoian
Differential Revision: https://phab.getgrist.com/D4069
Summary:
Custom widget was reseving its options, even though they haven't been changed. This
resulted with an ACL error and a popup message in readonly mode.
Test Plan:
Existing and manual.
To recreate:
1. Create a page with a calendar widget (don't change anything)
2. View this page as a Viewer (using ACL dropdown in tools)
3. The error should be shown.
Reviewers: georgegevoian
Reviewed By: georgegevoian
Subscribers: georgegevoian
Differential Revision: https://phab.getgrist.com/D4060
Summary: Added boilerplate code needed to create new wigets in "Add new" menu, that are wrapped around existing custom widgets. More details can be found here: https://grist.quip.com/larhAGRKyl6Z/Custom-widgets-in-Add-Widget-menu
Test Plan: nbowser tests added to verify if item in menu exits, if widget is rendered, and right side menu has widget selection and read access selection hided.
Reviewers: georgegevoian
Reviewed By: georgegevoian
Differential Revision: https://phab.getgrist.com/D3994
