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Finish initial work on d-figure

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This commit is contained in:
Ludwig Schubert
2017-08-22 15:18:05 -07:00
parent 08fafcf2ee
commit 9993a679c1
5 changed files with 113 additions and 93 deletions
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src/transforms/polyfills.js
+32 -11
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@@ -1,17 +1,38 @@
const webcomponentPath = '../dist/webcomponents-lite.js';
const intersectionObserverPath = '../dist/intersection-observer.js';
const template = `
if ('registerElement' in document &&
'import' in document.createElement('link') &&
'content' in document.createElement('template')) {
// Platform supports webcomponents natively! :-)
} else {
// Platform does not support webcomponents--loading polyfills synchronously.
const scriptTag = document.createElement('script');
scriptTag.src = '${webcomponentPath}';
scriptTag.async = false;
document.currentScript.parentNode.insertBefore(scriptTag, document.currentScript.nextSibling);
}
if ('IntersectionObserver' in window &&
'IntersectionObserverEntry' in window &&
'intersectionRatio' in IntersectionObserverEntry.prototype) {
// Platform supports IntersectionObserver natively! :-)
if (!('isIntersecting' in IntersectionObserverEntry.prototype)) {
Object.defineProperty(IntersectionObserverEntry.prototype,
'isIntersecting', {
get: function () {
return this.intersectionRatio > 0;
}
});
}
} else {
// Platform does not support webcomponents--loading polyfills synchronously.
const scriptTag = document.createElement('script');
scriptTag.src = '${intersectionObserverPath}';
scriptTag.async = false;
document.currentScript.parentNode.insertBefore(scriptTag, document.currentScript.nextSibling);
}
if ('registerElement' in document &&
'import' in document.createElement('link') &&
'content' in document.createElement('template')) {
// Platform supports webcomponents natively! :-)
} else {
// Platform does not support webcomponents--loading polyfills synchronously.
const scriptTag = document.createElement('script');
scriptTag.src = '${webcomponentPath}';
scriptTag.async = false;
document.currentScript.parentNode.insertBefore(scriptTag, document.currentScript.nextSibling);
}
`;
export default function render(dom) {