An error is triggered by the EyeDropper API stating that 'EyeDropper' has not been defined

I am trying to utilize EyeDropper for an eyedropper function in my project that uses Vue2 + Ts. Here is the code snippet:

<div
  v-if="haveEyeDropper"
  @click="handleClickPick"
>
  <i class="iconfont icon-xiguan"></i>
</div>

handleClickPick(): void {
  const eyeDropper = new EyeDropper();
  // ...
}

However, I am encountering errors stating "Cannot find name 'EyeDropper'. Did you mean 'eyeDropper'? -Vetur" and "'EyeDropper' is not defined -eslint". Interestingly, when I copied the example code from MDN documentation (https://developer.mozilla.org/en-US/docs/Web/API/EyeDropper) into an index.html file, it worked without any issues.

(Using Chrome version 105.0.5195.52)

Answer №1

Could you verify if your application is running on a Secure Context? (Likely within local development)

window.isSecureContext

If it's not running in a secure context, you won't be able to access the EyeDropper API (as per MDN):

https://i.stack.imgur.com/dGmX8.png

In that scenario, you might want to consider accessing your application over HTTPS using ngnix or similar methods.

Answer №2

I devised a innovative plan that may not be considered traditional.

Here is the code snippet I implemented in index.html:

<script>
  if (!!window.EyeDropper) {
    window.EyeDropperTarget = new EyeDropper();
  }
</script>

I am checking if window.EyeDropper exists, and if it does, I initialize an instance of EyeDropper() on window.

Subsequently, I utilize it in my application logic like so:

handleClickPick(): void {
  const picker = window.EyeDropperTarget;

  picker.open().then((result: any) => {
    const color = result?.sRGBHex;
    // ...
  });
}

Answer №3

My team leader provided me with a conventional approach using the following code:

const sample = (window as any).ColorPicker()

An error is being flagged by Vetur because: Esline does not recognize the new window Api.

Answer №4

To use that variable/type, you must declare it on the Window object. This means creating a new variable (not default) on the "window" object.

declare global {
    interface Window {
        EyeDropper?: any;
    }
}

For more information, refer to this thread:

Answer №5

Give this a shot:

const colorPicker = new window.ColorPicker();

Keep in mind that if you are using Ubuntu, you might encounter the error message: "AbortError: Failed to execute 'open' on 'ColorPicker': The user canceled the selection.". However, rest assured this code/ColorPicker will function properly on Windows Chrome/Edge versions >= 95.

Take a look at this article for more information:

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