Clipboard copy support

[avaer]

We already support clipboard paste. Ihe backing API is GLFW.

This works for browser copy:

selection = window.getSelection();
selection.removeAllRanges();

textNode = document.createTextNode('lol')
document.body.appendChild(textNode)

range = document.createRange();
range.setStart(textNode, 1);
range.setEnd(textNode, 3);

selection.addRange(range)

document.execCommand('copy')

document.body.removeChild(textNode)

Our implementation of document.execCommand() is here.

[chrislatorres]

I noticed copy and paste works now in #1002 studio is this and #424 still relevant?

[avaer]

Are you sure it works for the non-studio parts? I suspect Chrome is just hijacking this, so it will not work in actual Exokit DOM.

[chrislatorres]

Ah ok, thanks.

Notes for future reference:

exokit/src/Document.js

Line 94 in 9cd9525

document.dispatchEvent(new Event('paste'));

paste test:

function handlePaste (e) {

    var clipboardData, pastedData;

    // Stop data actually being pasted into div
    e.stopPropagation();
    e.preventDefault();

    // Get pasted data via clipboard API
    clipboardData = e.clipboardData || window.clipboardData;
    pastedData = clipboardData.getData('Text');

    // Do whatever with pasteddata
    console.log(pastedData);
}

window.addEventListener('paste', handlePaste);