Fix qdoc warningsv6.5.0-beta1

As JavaScript parsing issue got fixed , the limit was
not changed, meaning there where 4 "unused" warnings
possibilities. In the meantime another change
e6a13d97898f3f4b19f61006d0716ca9e1b9f037
was merged which had 3 qdoc issues, which got therefore
unnoticed.

Fix those issues.

Do not use underscore in example name and rename push_notification
to push-notifications (like qtbase network-chat).

Change-Id: I2635424e24d3b9a0a02c2e6fe8ac383eec95c112
Reviewed-by: Allan Sandfeld Jensen <allan.jensen@qt.io>
(cherry picked from commit cbc622f158a94fea9c6af8d675a8743e98267109)
Reviewed-by: Qt Cherry-pick Bot <cherrypick_bot@qt-project.org>

1 files changed, 84 insertions, 0 deletions

diff --git a/examples/webenginewidgets/push-notifications/content/ping.js b/examples/webenginewidgets/push-notifications/content/ping.js
new file mode 100644
index 000000000..285a57019
--- /dev/null
+++ b/examples/webenginewidgets/push-notifications/content/ping.js
@@ -0,0 +1,84 @@
+// Copyright (C) 2022 The Qt Company Ltd.
+// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR BSD-3-Clause
+
+const publicVapidKey =
+        "BNO4fIv439RpvbReeABNlDNiiBD2Maykn7EVnwsPseH7-P5hjnzZLEfnejXVP7Zt6MFoKqKeHm4nV9BHvbgoRPg";
+
+async function setup(delay)
+{
+    console.log('>> register service worker...');
+    const register = await navigator.serviceWorker.register('/worker.js', { scope : '/' });
+    console.log('>> service worker registered...');
+
+    console.log('>> subscribe push subscription to FCM');
+    var subscription = await register.pushManager.subscribe(
+            { userVisibleOnly : true, applicationServerKey : publicVapidKey });
+    console.log('>> subscription created...');
+
+    console.log('>> subscribe to push service...');
+    await fetch('/subscribe', {
+        method : 'POST',
+        body : JSON.stringify(subscription),
+        headers : { 'content-type' : 'application/json', 'ping-time' : delay }
+    });
+    console.log('>> push subscription created...')
+}
+
+async function clear()
+{
+    const register = await navigator.serviceWorker.getRegistration();
+    var subscription = await register.pushManager.getSubscription();
+    console.log('>> unsubscribe to push service...');
+    await fetch('/unsubscribe', {
+        method : 'POST',
+        body : JSON.stringify(subscription),
+        headers : { 'content-type' : 'application/json' }
+    });
+    console.log('>> push unsubscription removed...')
+
+    console.log('>> unsubscribe push subscription to FCM');
+    await subscription.unsubscribe();
+    console.log('>> subscription removed...');
+}
+
+function displaySetup(delay = null)
+{
+    const pingSetup = document.getElementById('ping-setup');
+    const pingClear = document.getElementById('ping-clear');
+    const pingText = document.getElementById('ping-text');
+    if (delay) {
+        pingClear.style.display = 'block';
+        pingSetup.style.display = 'none';
+        pingText.innerHTML = 'Ping Me Every ' + delay + ' seconds';
+    } else {
+        pingClear.style.display = 'none';
+        pingSetup.style.display = 'block';
+        pingText.innerHTML = "";
+    }
+}
+
+function handleSetupPing(event)
+{
+    event.preventDefault();
+
+    const seconds = document.forms[0].seconds.value;
+    document.forms[0].reset();
+
+    // check for service worker support
+    if ('serviceWorker' in navigator) {
+        setup(seconds).catch(err => console.error(err));
+    }
+
+    displaySetup(seconds);
+};
+
+function handleClearPing(event)
+{
+    event.preventDefault();
+    clear();
+    displaySetup();
+};
+
+document.forms[0].addEventListener('submit', handleSetupPing);
+const clearButton = document.getElementById('ping-clear-button');
+clearButton.addEventListener('click', handleClearPing);