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Clipboard.write() - log and fixes #33769

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merged 2 commits into from
May 27, 2024
Merged

Clipboard.write() - log and fixes #33769

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b97a7d5
Fix typo Clipboard.write() css
hamishwillee May 27, 2024
9746625
Add a log
hamishwillee May 27, 2024
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29 changes: 26 additions & 3 deletions files/en-us/web/api/clipboard/write/index.md
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Original file line number Diff line number Diff line change
Expand Up @@ -86,6 +86,27 @@ The HTML just defines our `<canvas>` element and the `<div>` element with id `ta
<div id="target">Paste here.</div>
```

```html hidden
<pre id="log"></pre>
```

```css hidden
#log {
height: 60px;
overflow: scroll;
padding: 0.5rem;
border: 1px solid black;
}
```

```js
const logElement = document.querySelector("#log");
function log(text) {
logElement.innerText = `${logElement.innerText}${text}\n`;
logElement.scrollTop = logElement.scrollHeight;
}
```

#### JavaScript

First we define an `async` function to copy a canvas to a blob.
Expand Down Expand Up @@ -131,11 +152,12 @@ async function copyCanvasContentsToClipboard() {
const data = [new ClipboardItem({ [blob.type]: blob })];
// Write the data to the clipboard
await navigator.clipboard.write(data);
log("Copied");
} catch (error) {
console.log(error);
log(error);
}
} else {
console.log("image/png is not supported");
log("image/png is not supported");
}
}
```
Expand Down Expand Up @@ -173,14 +195,15 @@ body {
}
img {
margin: 0.5rem;
}
```

#### Result

The result is shown below.
First click on the blue square, and then select the text "Paste here" and use your OS-specific keyboard combinatations to paste from the clipboard (such as `Ctrl+V` on Windows).

{{embedlivesample("write_canvas_contents_to_the_clipboard", "", "300")}}
{{embedlivesample("write_canvas_contents_to_the_clipboard", "", "400")}}

## Specifications

Expand Down