The button component I needed an onHovertooltip for is responsive via either react-responsiveor plain old media queries.

In Safari, the browser automatically takes control and shows the default cursor when the options are open. To fix, I added another check to only show the svg if the clientX value of the mouse position is greater than 1.

We set the initial state of cursor to be an object with a single property active, which we’ll use later to give our cursor an “active” style. With this implementation, Cursor and all of the children of App have access to the cursor context. the target element) is removed from the DOM during the mouse events sequence, the remaining events of the sequence MUST NOT be fired on that element. React does not fire onMouseLeave events on a disabled button December 22, 2018 Posting as this was decently difficult to diagnose while researching and testing 3rd party popover/tooltip components. The new mouse events theoretically trigger whenever the mouse enters or exits the body element. Detecting touch devices is a somewhat contentious topic, and I don’t intend to wade into the debate about the best way to do so, but here’s one: Some bits redacted for brevity; bold sections indicate changes from the last version of Cursor. Definition and Usage.

We have a fixed-positioned div that always fills the entire viewport even as the user scrolls up and down. Tip: The onmouseleave event is similar to the onmouseout event. However, in practice I found that sometimes when scrolling slowly off the left side of the browser window, the mouseleave event would not fire and the cursor would remain visible. Since Cursor is a global element used everywhere, we add it and CursorContextProvider to the top-level component of our app, which in this example is named App. On touch devices, we simply return the options object that was passed as an argument. The options of an HTML select display above the content in the DOM, including Cursor no matter how high we make its z-index.

It assumes the reader is generally familiar with these topics. Some bits redacted for brevity; bold sections indicate changes from the last version of useCursorHandlers. In Cursor we only need the state variable and not the updater function, so we just define cursor. To see this in action, we’ll add another component that uses setCursor to update the active state. Snapshots of Material-UI styled component with React Testing Library and TypeScript. It’s not terribly elegant, but it’s better than the ghost cursor experience we have in Chrome, so we’ll try to implement something similar. As some components may already be using these mouse events, useCursorHandlers receives an argument where this additional handling can be passed. Tip: This event is often used together with the onmouseenter event, which occurs when the mouse pointer is moved onto an element. If you move the mouse fast over them, then maybe only the child div triggers events, or maybe the parent one, or maybe there will be no events at all. Since we want the mouse position relative to the viewport, useMousePosition returns values for clientX and clientY. (As a workaround for now, you can use SimulateNative.mouseOver and SimulateNative.mouseOut (making sure to specify relatedTarget appropriately on each) and together they will cause React to fire onMouseEnter and onMouseLeave events.) This state value is the thing that gets returned by the hook. Here is a simple button component for illustrative purposes: Once again, we import CursorContext and pass it to useContext to get the state value pair. onmouseleave mouseleave and mouseout are similar but differ in that mouseleave does not bubble and mouseout does.

The only difference is that the onmouseleave event does not bubble (does not propagate up …

In the above Button component, we attached two mouse event handlers without too much fuss, but this could get tedious if we want to attach handlers to other components, or if we want to change or extend those handlers.

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