pub fn use_device_pixel_grid() -> (Signal<PixelGrid>, Callback<MountedEvent>)Expand description
The device-pixel grid under the element given the returned onmounted handler, updated for as
long as the calling component is mounted.
The element’s layout is watched by a ResizeObserver, which reports the box once it is laid out
and again whenever it changes size — the window resized, the page zoomed, or the layout around
it moved it. A move to a screen of another density changes the ratio alone, which only a
resolution media query reports; that query is re-armed for each new ratio. An element inside
a scrolling column also moves without changing size — the column scrolls, or what sits above it
in the column grows or shrinks — so the column’s scroll and every change to its content are
watched too.