Disable syntax highlighting for long lines in comment context
Similar to diff-view if a line has length more than 500 chars, then
turn off syntax highlighting for that context code.
Change-Id: If4a12e50d2969e6f91531498ca575c39244715fe
diff --git a/polygerrit-ui/app/elements/diff/gr-diff/gr-diff-utils.ts b/polygerrit-ui/app/elements/diff/gr-diff/gr-diff-utils.ts
index 96fbd8d..fada9cb 100644
--- a/polygerrit-ui/app/elements/diff/gr-diff/gr-diff-utils.ts
+++ b/polygerrit-ui/app/elements/diff/gr-diff/gr-diff-utils.ts
@@ -18,6 +18,11 @@
import {CommentRange} from '../../../types/common';
import {FILE, LineNumber} from './gr-diff-line';
import {Side} from '../../../constants/constants';
+import {DiffInfo} from '../../../types/diff';
+
+// If any line of the diff is more than the character limit, then disable
+// syntax highlighting for the entire file.
+export const SYNTAX_MAX_LINE_LENGTH = 500;
/**
* Compare two ranges. Either argument may be falsy, but will only return
@@ -130,3 +135,17 @@
(node as Element).classList.contains('comment-thread')
);
}
+
+/**
+ * @return whether any of the lines in diff are longer
+ * than SYNTAX_MAX_LINE_LENGTH.
+ */
+export function anyLineTooLong(diff?: DiffInfo) {
+ if (!diff) return false;
+ return diff.content.some(section => {
+ const lines = section.ab
+ ? section.ab
+ : (section.a || []).concat(section.b || []);
+ return lines.some(line => line.length >= SYNTAX_MAX_LINE_LENGTH);
+ });
+}
