From bc4fa6b198557a7f3989eb0865e2c77ac7451d29 Mon Sep 17 00:00:00 2001 From: kibigo! Date: Sun, 3 Dec 2017 23:26:40 -0800 Subject: Rename themes -> flavours ? ? --- .../flavours/glitch/util/get_rect_from_entry.js | 21 +++++++++++++++++++++ 1 file changed, 21 insertions(+) create mode 100644 app/javascript/flavours/glitch/util/get_rect_from_entry.js (limited to 'app/javascript/flavours/glitch/util/get_rect_from_entry.js') diff --git a/app/javascript/flavours/glitch/util/get_rect_from_entry.js b/app/javascript/flavours/glitch/util/get_rect_from_entry.js new file mode 100644 index 000000000..c266cd7dc --- /dev/null +++ b/app/javascript/flavours/glitch/util/get_rect_from_entry.js @@ -0,0 +1,21 @@ + +// Get the bounding client rect from an IntersectionObserver entry. +// This is to work around a bug in Chrome: https://crbug.com/737228 + +let hasBoundingRectBug; + +function getRectFromEntry(entry) { + if (typeof hasBoundingRectBug !== 'boolean') { + const boundingRect = entry.target.getBoundingClientRect(); + const observerRect = entry.boundingClientRect; + hasBoundingRectBug = boundingRect.height !== observerRect.height || + boundingRect.top !== observerRect.top || + boundingRect.width !== observerRect.width || + boundingRect.bottom !== observerRect.bottom || + boundingRect.left !== observerRect.left || + boundingRect.right !== observerRect.right; + } + return hasBoundingRectBug ? entry.target.getBoundingClientRect() : entry.boundingClientRect; +} + +export default getRectFromEntry; -- cgit