feat: Adds copy view URL button to bypass browser URL truncation #868
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Adds a new button to the top bar that copies the complete view URL to the clipboard, including the full state fragment. This solves the issue where exceptionally long URLs are truncated when copied from the browser's address bar. Changes: - Adds makeCopyUrlButton() function using the clipboard icon - Creates encodeStateAsFragment() helper in url_hash_binding - Refactors UrlHashBinding.setUrlHash() to use new helper - Adds URL copy button to viewer top bar
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Summary
Adds a "Copy view URL to clipboard" button to the top bar that copies the complete URL including the full state fragment, bypassing browser truncation issues.
Problem
When neuroglancer state URLs become very long, browsers truncate them in the address bar. Copying the URL directly from the address bar results in an incomplete URL that cannot restore the full state when pasted into another browser
Solution
Changes
src/widget/copy_button.ts: AddedmakeCopyUrlButton()function that uses the clipboard iconsrc/ui/url_hash_binding.ts: AddedencodeStateAsFragment()helper function and refactored existing code to use itsrc/viewer.ts: Added the copy URL button to the top bar