@wordpress/block-editor/build/components/block-popover/use-popover-scroll.cjs.map

Generic block editor.

{
  "version": 3,
  "sources": ["../../../src/components/block-popover/use-popover-scroll.js"],
  "sourcesContent": ["/**\n * WordPress dependencies\n */\nimport { useRefEffect } from '@wordpress/compose';\nimport { getScrollContainer } from '@wordpress/dom';\n\nconst scrollContainerCache = new WeakMap();\n\n/**\n * Allow scrolling \"through\" popovers over the canvas. This is only called for\n * as long as the pointer is over a popover. Do not use React events because it\n * will bubble through portals.\n *\n * @param {Object} contentRef\n */\nfunction usePopoverScroll( contentRef ) {\n\tconst effect = useRefEffect(\n\t\t( node ) => {\n\t\t\tfunction onWheel( event ) {\n\t\t\t\tconst { deltaX, deltaY, target } = event;\n\t\t\t\tconst contentEl = contentRef.current;\n\t\t\t\tlet scrollContainer = scrollContainerCache.get( contentEl );\n\t\t\t\tif ( ! scrollContainer ) {\n\t\t\t\t\tscrollContainer = getScrollContainer( contentEl );\n\t\t\t\t\tscrollContainerCache.set( contentEl, scrollContainer );\n\t\t\t\t}\n\t\t\t\t// Finds a scrollable ancestor of the event\u2019s target. It's not cached because the\n\t\t\t\t// it may not remain scrollable due to popover position changes. The cache is also\n\t\t\t\t// less likely to be utilized because the target may be different every event.\n\t\t\t\tconst eventScrollContainer = getScrollContainer( target );\n\t\t\t\t// Scrolls \u201Cthrough\u201D the popover only if another contained scrollable area isn\u2019t\n\t\t\t\t// in front of it. This is to avoid scrolling both containers simultaneously.\n\t\t\t\tif ( ! node.contains( eventScrollContainer ) ) {\n\t\t\t\t\tscrollContainer.scrollBy( deltaX, deltaY );\n\t\t\t\t}\n\t\t\t}\n\t\t\t// Tell the browser that we do not call event.preventDefault\n\t\t\t// See https://developer.mozilla.org/en-US/docs/Web/API/EventTarget/addEventListener#improving_scrolling_performance_with_passive_listeners\n\t\t\tconst options = { passive: true };\n\t\t\tnode.addEventListener( 'wheel', onWheel, options );\n\t\t\treturn () => {\n\t\t\t\tnode.removeEventListener( 'wheel', onWheel, options );\n\t\t\t};\n\t\t},\n\t\t[ contentRef ]\n\t);\n\treturn contentRef ? effect : null;\n}\n\nexport default usePopoverScroll;\n"],
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  "names": []
}