Prevent infinite looping in target callbacks #459
Merged
Conversation
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
Prior to this change, adding or removing target elements could result in an infinite loop of callbacks and mutations. This commit introduces `ElementObserver.pause()` (and transitively introduces `AttributeObserver.pause()` and `TokenListObserver.pause()`) to provide callers with the ability to pause and resume mutation observation. When firing `[name]TargetConnected` and `[name]TargetDisconnected` callbacks, the behind-the-scenes observers are paused.
Sign up for free
to join this conversation on GitHub.
Already have an account?
Sign in to comment
Add this suggestion to a batch that can be applied as a single commit.
This suggestion is invalid because no changes were made to the code.
Suggestions cannot be applied while the pull request is closed.
Suggestions cannot be applied while viewing a subset of changes.
Only one suggestion per line can be applied in a batch.
Add this suggestion to a batch that can be applied as a single commit.
Applying suggestions on deleted lines is not supported.
You must change the existing code in this line in order to create a valid suggestion.
Outdated suggestions cannot be applied.
This suggestion has been applied or marked resolved.
Suggestions cannot be applied from pending reviews.
Suggestions cannot be applied on multi-line comments.
Suggestions cannot be applied while the pull request is queued to merge.
Suggestion cannot be applied right now. Please check back later.
Prior to this change, adding or removing target elements could result in
an infinite loop of callbacks and mutations.
This commit introduces
ElementObserver.pause()(and transitivelyintroduces
AttributeObserver.pause()andTokenListObserver.pause())to provide callers with the ability to pause and resume mutation
observation.
When firing
[name]TargetConnectedand[name]TargetDisconnectedcallbacks, the behind-the-scenes observers are paused.