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Check for valid Navigator.permissions before use

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Safari on iOS now supports the Navigator.clipboard
API, but not the Navigator.permissions API.

Looks like we have not encountered this combination
Before. Add undefined check for permissions as well.

Fixes: QTBUG-84658
Pick-to: 5.15
Change-Id: I99ab08fd34bbb29a82661e24bf400c927f3604f6
Reviewed-by: Lorn Potter <lorn.potter@gmail.com>
This commit is contained in:
Morten Johan Sørvig 2020-06-05 18:07:15 +02:00
parent ac419a66fd
commit 974f239338
1 changed files with 4 additions and 3 deletions
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5
src/plugins/platforms/wasm/qwasmclipboard.cpp
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@ -126,8 +126,9 @@ EMSCRIPTEN_BINDINGS(qtClipboardModule) {
QWasmClipboard::QWasmClipboard()
{
val clipboard = val::global("navigator")["clipboard"];
hasClipboardApi = (!clipboard.isUndefined() && !clipboard["readText"].isUndefined());
val permissions = val::global("navigator")["permissions"];
hasClipboardApi = (!clipboard.isUndefined() && !permissions.isUndefined() && !clipboard["readText"].isUndefined());
if (hasClipboardApi)
initClipboardEvents();
}