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canhelp
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node_modules
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next
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dist
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esm
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build
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webpack
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loaders
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devtool
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/opt/canhelp/node_modules/next/dist/esm/build/webpack/loaders/devtool
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devtool-style-inject.js
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devtool-style-inject.js.map
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/opt/canhelp/node_modules/next/dist/esm/build/webpack/loaders/devtool/devtool-style-inject.js.map
(7485B)
{"version":3,"sources":["../../../../../src/build/webpack/loaders/devtool/devtool-style-inject.js"],"sourcesContent":["/* @ts-check */\n/**\n * Style injection mechanism for Next.js devtools with shadow DOM support\n * Handles caching of style elements when the nextjs-portal shadow root is not available\n */\n\n// Global cache for style elements when shadow root is not available\nif (typeof window !== 'undefined') {\n window._nextjsDevtoolsStyleCache = window._nextjsDevtoolsStyleCache || {\n pendingElements: [],\n isObserving: false,\n lastInsertedElement: null,\n cachedShadowRoot: null, // Cache the shadow root once found\n }\n}\n\n/**\n * @returns {ShadowRoot | null}\n */\nfunction getShadowRoot() {\n const cache = window._nextjsDevtoolsStyleCache\n\n // Return cached shadow root if available\n if (cache.cachedShadowRoot) {\n return cache.cachedShadowRoot\n }\n\n // Query the DOM and cache the result if found\n const portal = document.querySelector('nextjs-portal')\n const shadowRoot = portal?.shadowRoot || null\n\n if (shadowRoot) {\n cache.cachedShadowRoot = shadowRoot\n }\n\n return shadowRoot\n}\n\n/**\n * @param {HTMLElement} element\n * @param {ShadowRoot} shadowRoot\n */\nfunction insertElementIntoShadowRoot(element, shadowRoot) {\n const cache = window._nextjsDevtoolsStyleCache\n\n if (!cache.lastInsertedElement) {\n shadowRoot.insertBefore(element, shadowRoot.firstChild)\n } else if (cache.lastInsertedElement.nextSibling) {\n shadowRoot.insertBefore(element, cache.lastInsertedElement.nextSibling)\n } else {\n shadowRoot.appendChild(element)\n }\n\n cache.lastInsertedElement = element\n}\n\nfunction flushCachedElements() {\n const cache = window._nextjsDevtoolsStyleCache\n const shadowRoot = getShadowRoot()\n\n if (!shadowRoot) {\n return\n }\n\n cache.pendingElements.forEach((element) => {\n insertElementIntoShadowRoot(element, shadowRoot)\n })\n cache.pendingElements = []\n}\n\nfunction startObservingForPortal() {\n const cache = window._nextjsDevtoolsStyleCache\n\n if (cache.isObserving) {\n return\n }\n cache.isObserving = true\n\n // First check if the portal already exists\n const shadowRoot = getShadowRoot() // This will cache it if found\n if (shadowRoot) {\n flushCachedElements()\n return\n }\n\n // Set up MutationObserver to watch for the portal element\n const observer = new MutationObserver((mutations) => {\n if (mutations.length === 0) {\n return\n }\n\n // Check all mutations and all added nodes\n for (const mutation of mutations) {\n if (mutation.addedNodes.length === 0) continue\n\n for (const addedNode of mutation.addedNodes) {\n if (addedNode.nodeType !== Node.ELEMENT_NODE) continue\n\n const mutationNode = addedNode\n\n let portalNode = null\n if (\n // app router: body > script[data-nextjs-dev-overlay] > nextjs-portal\n mutationNode.tagName === 'SCRIPT' &&\n mutationNode.getAttribute('data-nextjs-dev-overlay')\n ) {\n portalNode = mutationNode.firstChild\n } else if (\n // pages router: body > nextjs-portal\n mutationNode.tagName === 'NEXTJS-PORTAL'\n ) {\n portalNode = mutationNode\n }\n\n if (portalNode) {\n // Wait until shadow root is available\n const checkShadowRoot = () => {\n if (getShadowRoot()) {\n flushCachedElements()\n observer.disconnect()\n cache.isObserving = false\n } else {\n // Try again after a short delay\n setTimeout(checkShadowRoot, 20)\n }\n }\n checkShadowRoot()\n return // Exit early once we find a portal\n }\n }\n }\n })\n\n observer.observe(document.body, {\n childList: true,\n subtree: true,\n })\n}\n\n/**\n * @param {HTMLElement} element\n */\nfunction insertAtTop(element) {\n // Add special recognizable data prop to element\n element.setAttribute('data-nextjs-dev-tool-style', 'true')\n\n const shadowRoot = getShadowRoot()\n if (shadowRoot) {\n // Shadow root is available, insert directly\n insertElementIntoShadowRoot(element, shadowRoot)\n } else {\n // Shadow root not available, cache the element\n const cache = window._nextjsDevtoolsStyleCache\n cache.pendingElements.push(element)\n\n // Start observing for the portal if not already observing\n startObservingForPortal()\n }\n}\n\nmodule.exports = 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