Created
December 1, 2021 09:54
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tooltip with dynamic position
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| const { x: offsetLeft } = currentTarget.getBoundingClientRect(); | |
| const innerWidth = window.innerWidth; | |
| const offsetRight = innerWidth - offsetLeft; | |
| if (offsetLeft < TOOLTIP_WIDTH / 2) { | |
| // if left space is too small | |
| // -------- | |
| // |s. | | |
| // |---- | s = offsetLeft | |
| // | | left = -s = - | |
| // -------- | |
| left = -offsetLeft + PAGE_PADDING; | |
| } else if (offsetRight - PAGE_PADDING < TOOLTIP_WIDTH / 2) { | |
| // if right space is too small | |
| // -------- | |
| // | .s| | |
| // | ----| s = (offsetRight) | |
| // | | left = -(TOOLTIP_WIDTH - offsetRight) = --- | |
| // -------- | |
| // | |
| left = -(TOOLTIP_WIDTH - offsetRight) - PAGE_PADDING; | |
| } else { | |
| // normal case be center | |
| // ------- | |
| // | . | | |
| // | --- | | |
| // | | | |
| // ------- | |
| left = -TOOLTIP_WIDTH / 2; | |
| } |
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