For simplicity's sake, for now we keep storing only one scroll position per
history entry (bug 1499210), so if we have to choose between the layout and the
visual viewport, the latter is a vastly better choice, as it more accurately
represents the scroll position as perceived by the user, especially when the
page has been pinch-zoomed.
This also means that instead of the normal scroll events, the session store now
has to listen for the corresponding events specific to the visual viewport.
We also extend the scroll position test to check that the scroll position isn't
just properly saved, but also actually properly restored in practice as well.
We only add this test now instead of already adding it beforehand like we did
with the rest of the test
- to avoid having to temporarily extend the checkScroll() helper function to
deal with todo()/todo_is etc.
- because getting that part of the test to complete without timing out (which
would be one of its natural failure modes, because the expected events would
be missing) would require faking even more scroll events
- because we already have the todo() tests that are telling us the we didn't
*store* any scroll position in the first place, so there's no point in trying
to actually restore anything
For the GeckoView saveAndRestoreState test, we now spin the event loop once
before setting the scroll position in order to give APZ opportunity to settle
down after the initial page load.
Differential Revision: https://phabricator.services.mozilla.com/D15690
nsISHistoryListener can cancel several operations, but the functionality is
only ever used for OnHistoryReload(). So this patch removes it for the other
operations.
This also removes any redundant Ci.nsISupports elements in the interface
lists.
This was done using the following script:
acecb401b7/processors/chromeutils-generateQI.jsm
MozReview-Commit-ID: AIx10P8GpZY
This patch was autogenerated by my decomponents.py
It covers almost every file with the extension js, jsm, html, py,
xhtml, or xul.
It removes blank lines after removed lines, when the removed lines are
preceded by either blank lines or the start of a new block. The "start
of a new block" is defined fairly hackily: either the line starts with
//, ends with */, ends with {, <
