Improve state management for rendering, sidebars, and mobile mode in pages.
Review Request #10739 — Created Oct. 2, 2019 and submitted
RB.PageViewto simplify some common operations that are
required by subclasses.
isPageRenderedflag is now set after a page has been rendered.
Callbacks can use this to ensure that they're working with a page that
is now fully rendered to the DOM.
The main sidebar content area is now accessible through a
attribute. This prevents pages from having to look up the correct
Pages can now override
onMobileModeChanged()to provide custom logic
when switching between desktop/mobile mode, instead of having to set up
a custom signal handler (which could easily and accidentally conflict
with the base page's
Made use of all these features in an upcoming change.
Unit tests pass.
In your description, "A isPageRendered" -> "An isPageRendered"