Annotate trailing whitespace per user preference
Add a simple annotation layer that marks trailing whitespace in diffs
(guarded by the `show_whitespace_errors` diff preference). The newly
supported diff preference is added to both diff preference controls. The
requirement that all annotation layers must implement `addListener` is
relaxed as the trailing whitespace layer is the third layer that doesn't
use it.
Adds tests for the layer and the diff preference.
Feature: Issue 4836
Change-Id: Ifba05216bf0bc3c0a8a094f5ef392b983091d59f
diff --git a/polygerrit-ui/app/elements/diff/gr-diff/gr-diff.html b/polygerrit-ui/app/elements/diff/gr-diff/gr-diff.html
index 2b89a7a..313fa2a 100644
--- a/polygerrit-ui/app/elements/diff/gr-diff/gr-diff.html
+++ b/polygerrit-ui/app/elements/diff/gr-diff/gr-diff.html
@@ -165,6 +165,10 @@
/* >> character */
content: '\00BB';
}
+ .trailing-whitespace {
+ border-radius: .4em;
+ background-color: #FF9AD2;
+ }
</style>
<style include="gr-theme-default"></style>
<div class$="[[_computeContainerClass(_loggedIn, viewMode, displayLine)]]"
