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45 lines
2.3 KiB
45 lines
2.3 KiB
2 years ago
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## Pick & click
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### Instructions
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Today, you're gonna create your own color picker.
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Write the function `pick` which turns the screen into a `hsl` color picker, varying the `hue` and `luminosity` of according to the position of the mouse, which:
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- changes the `background` color of the `body`, so the `hsl` value is different on each mouse position on the screen:
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- on the axis X, the hue value has to vary between 0 and 360
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- on the axis Y, the luminosity value has to vary between 0 and 100
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- displays those 3 values using the `text` class:
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- the full `hsl` value in a `div` with the class `hsl` in the middle of the screen
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- the `hue` value in a `div` with the class `hue` in the top right corner of the screen
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- the `luminosity` value in a `div` with the class `luminosity` in the bottom left corner of the screen
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- copies that value in the clipboard on click
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- displays two SVG lines, with respective ids `axisX` and `axisY`, following the cursor like so:
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- the axisX has to set the attributes `x1` and `x2` to the mouse X position
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- the axisY has to set the attributes `y1` and `y2` to the mouse Y position
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> Here is how a hsl value is formatted: `hsl(45, 50%, 35%)`
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> Use `Math.round()` to round the values
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### Notions
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- [Copy event](https://developer.mozilla.org/en-US/docs/Web/API/Element/copy_event)
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- [Mouse move event](https://developer.mozilla.org/en-US/docs/Web/API/Element/mousemove_event)
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- [SVG](https://developer.mozilla.org/en-US/docs/Web/SVG/Element/svg): [`createElementNS`](https://developer.mozilla.org/en-US/docs/Web/API/Document/createElementNS), [`setAttribute`](https://developer.mozilla.org/en-US/docs/Web/API/Element/setAttribute)
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- Take a look at the [HSL section](https://developer.mozilla.org/en-US/docs/Web/HTML/Applying_color)
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### Files
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You only need to create & submit the JS file `pick-and-click.js` ; we're providing you the following file to download (click right and save link) & test locally:
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- the HTML file [pick-and-click.html](./pick-and-click.html) to open in the browser, which includes:
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- the JS script which will allow to run your code
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- some CSS pre-styled classes: feel free to use those as they are, or modify them
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### Expected result
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You can see an example of the expected result:
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[](https://www.youtube.com/watch?v=eE4eE9_eKZI)
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