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get-visible-rect

Calculates the visible portion of the element inside the viewport

0.1.2
latest
npm
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8
-33.33%
Maintainers
1
Weekly downloads
 
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getVisibleRect(el)

Build Status Sauce Test Status

Note: tests are failing, because they only run in PhantomJS on travis for now - enabling real browsers soon.

When the element is inside the viewport, getVisibleRect() returns:

{
	visibleHeight,
	visibleWidth,
	height,
	width,
	
	// these positions are relative to the elements top/left
	top,
	bottom,
	left,
	right
}

When element is outside the viewport, visibleHeight and visibleWidth will be 0, while top/bottom/left/right will be undefined.

My primary purpose for building this (and not using something else) is to calculate the visible percentage of the element. visibleHeight is actually bottom - top and visibleWidth is right - left. This means that the visible percentage is (visibleHeight * visibleWidth) / (height * width).

Keywords

DOM

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Package last updated on 09 Jul 2014

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