8000 js: leave the clipboard to the page unless the canvas has the focus by benface · Pull Request #701 · not-fl3/miniquad · GitHub
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js: leave the clipboard to the page unless the canvas has the focus #701

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js: leave the clipboard to the page unless the canvas has the focus #701

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18 changes: 12 additions & 6 deletions js/gl.js
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Original file line number Diff line number Diff line change
Expand Up @@ -1308,20 +1308,26 @@ var importObject = {
window. () {
resize(canvas, wasm_exports.resize);
};
// Only while the canvas has the focus, so a text field on the page
// keeps its own. Browsers can send these to the body or to the
// page's selection rather than the focused canvas.
window.addEventListener("copy", function (e) {
if (clipboard != null) {
event.clipboardData.setData('text/plain', clipboard);
event.preventDefault();
if (document.activeElement == canvas && clipboard != null) {
e.clipboardData.setData('text/plain', clipboard);
e.preventDefault();
}
});
window.addEventListener("cut", function (e) {
if (clipboard != null) {
event.clipboardData.setData('text/plain', clipboard);
event.preventDefault();
if (document.activeElement == canvas && clipboard != null) {
e.clipboardData.setData('text/plain', clipboard);
e.preventDefault();
}
});

window.addEventListener("paste", function (e) {
if (document.activeElement != canvas) {
return;
}
e.stopPropagation();
e.preventDefault();
var clipboardData = e.clipboardData || window.clipboardData;
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