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fix: crash when using TouchBarScrubber arrow button (#30661)

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Shelley Vohr 2021-08-24 18:28:57 +02:00 committed by GitHub
parent e43a25724c
commit 32194f0f71
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2 changed files with 5 additions and 2 deletions
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2
docs/api/touch-bar-scrubber.md
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@ -15,7 +15,7 @@ _This class is not exported from the `'electron'` module. It is only available a
* `highlightedIndex` Integer - The index of the item the user touched.
* `selectedStyle` String (optional) - Selected item style. Can be `background`, `outline` or `none`. Defaults to `none`.
* `overlayStyle` String (optional) - Selected overlay item style. Can be `background`, `outline` or `none`. Defaults to `none`.
* `showArrowButtons` Boolean (optional) - Defaults to `false`.
* `showArrowButtons` Boolean (optional) - Whether to show arrow buttons. Defaults to `false` and is only shown if `items` is non-empty.
* `mode` String (optional) - Can be `fixed` or `free`. The default is `free`.
* `continuous` Boolean (optional) - Defaults to `true`.

3
shell/browser/ui/cocoa/electron_touch_bar.mm
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@ -735,6 +735,9 @@ static NSString* const ImageScrubberItemIdentifier = @"scrubber.image.item";
bool showsArrowButtons = false;
settings.Get("showArrowButtons", &showsArrowButtons);
// The scrubber will crash if the user tries to scroll
// and there are no items.
if ([self numberOfItemsForScrubber:scrubber] > 0)
scrubber.showsArrowButtons = showsArrowButtons;
std::string selectedStyle;