These changes to the color scheme are hidden behind a feature
flag for the time being.
Bug: T271895
Change-Id: I0a4b03e0f3bc8239f31edbbd5ae55661607b76f6
This does not have an effect any more with all the other
optimizations in place.
This reverts commit 094f20902c.
Bug: T274369
Change-Id: I288039a35270093bd22b5a073e70f6b769088c13
While working on T270317, I realized the performance of the
matchbrackets addon is not as good as described in
T270237#6739993. The issue with my original benchmark was that
I did it with a single pair of brackets with thousands of
characters between. A paragraph with thousands of brackets
behaves much worse. So bad that I feels painful when moving
the cursor.
Lowering the limit to something in the middle (between the
original 1000 and my 10000) makes it behave much, much better
on my machine.
Bug: T270237
Bug: T270317
Change-Id: I31f850f4c7778d6b5ff1d0eb17fdaf0edf7ae019
My upstream patch was accepted within 9 minutes:
https://github.com/codemirror/CodeMirror/pull/6565
Note: This backport includes another upstream commit that fixed
some typos.
Bug: T269096
Change-Id: Ib5b64214d7536bc952886f45290d537eab2f9bbb
The addon does have 3 settings:
- maxHighlightLineLength is for the current line where the
cursor is. Bracket matching is simply not done when the
current line is longer. The default is 1000, which is rather
low.
- maxScanLineLength is for every other line that is scanned in
the process. I don't understand why, but this limit is 10x
higher.
- maxScanLines is the number of lines that can be scanned.
Simply raising the first to be 10000 as well fixes our issue.
Note that CodeMirror does have a limit of 10000 anyway. It's
called maxHighlightLength there. Lines that are longer get
syntax highlighting only for the first 10000 characters. The
rest of the line is black. Using the same limit in the addon
makes it's behavior consistent. Means: The user can see when
the syntax highlighting stops, and bracket matching stops
working the same time.
I benchmarked with both settings. It doesn't have a measurable
effect. Bracket matching is done in <1ms in both cases.
Bug: T270237
Change-Id: Ia56bf4c2fb023c9f117376242221d39f51196173
The addon does support some configuration options. These are passed
as properties of the `matchBrackets` CodeMirror option. Just passing
the boolean there hides that fact.
Bug: T270317
Bug: T270237
Change-Id: Iaa4b5ed8ef538e76cd1c96a09485e143112f1ae0
Optimizations for the code introduced in Ic403e0a:
* Skip this entirely when something is selected (as discussed
in Ic403e0a).
* Use a combination of existing methods. I benchmarked these
again. This approach is "significantly" slower compared to
the custom code from before. However, "significantly" here
means something like 1 nanosecond vs. 4 nanoseconds. Both
is effectively nothing.
* Use the same approach in another place. This one is triggered
every time a change is made, e.g. a character typed. I
benchmarked this as well. The new code is about 500x faster
(yes, seriously).
Bug: T269094
Change-Id: I00fe595a89be7a257e27ed28d38568c81483338b
Deferring the insertions can lead to sync issues, so use
a different technique to selective refresh the CodeMirror
view when the height changes.
This reverts commit 8e3d96f75f.
Bug: T188473
Bug: T185184
Change-Id: I502501cc0325db64f29a67716306733859d102a9
Due to using bold as a highlight style, the VE overlay technique
will only work with monospaced fonts.
Change-Id: I33e3e07cf0f3d8e25dd35623286eedf28ba20ae1
CM surface is just for presentation, it shouldn't
be possible to focus or select anything in the surface,
so in addition to it being beneath the VE surface,
disable it through the CM API and disable pointer-events
with CSS.
Bug: T170170
Change-Id: Ief49c293f514e22bc6db5eebb3a11c1bc695432d
Long-term todo:
* Performance will be poor on large pages due
to using a auto-height textarea which CodeMirror
doesn't optimise.
Change-Id: I16598fcdbeee51e6fae88376ec81f1c8552b383d
