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Improve unusable map window

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As long as the original window is visible animation frames will run
and the external map will be usable
This commit is contained in:
Maximilian Krög
2021-10-30 15:39:46 +02:00
parent 50dc9f1f88
commit 8cff620691
2 changed files with 52 additions and 17 deletions
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37
examples/external-map.js
View File

@@ -39,6 +39,28 @@ function resetMapTarget() {
button.disabled = false;
}
function updateOverlay() {
if (!mapWindow) {
return;
}
const container = mapWindow.document.querySelector('.container');
if (!container) {
return;
}
const externalMapTarget = mapWindow.document.getElementById('map');
if (document.visibilityState === 'visible') {
// Show controls and enable keyboard input
container.classList.remove('unusable');
externalMapTarget.setAttribute('tabindex', '0');
externalMapTarget.focus();
} else {
// Hide all controls and disable keyboard input
externalMapTarget.removeAttribute('tabindex');
container.classList.add('unusable');
}
}
window.addEventListener('visibilitychange', updateOverlay);
button.addEventListener('click', function () {
const blockerNotice = document.getElementById('blocker-notice');
blockerNotice.setAttribute('hidden', 'hidden');
@@ -61,7 +83,6 @@ button.addEventListener('click', function () {
const externalMapTarget = mapWindow.document.getElementById('map');
localMapTarget.style.height = '0px';
map.setTarget(externalMapTarget);
externalMapTarget.focus();
if (timeoutKey) {
timeoutKey = clearTimeout(timeoutKey);
@@ -72,18 +93,6 @@ button.addEventListener('click', function () {
closeMapWindow();
});
window.addEventListener('blur', function (evt) {
externalMapTarget.style.opacity=0.3;
});
window.addEventListener('focus', function (evt) {
externalMapTarget.style.opacity=1.0;
});
mapWindow.addEventListener('focus', function (evt) {
if (!window.document.hidden){
externalMapTarget.style.opacity=1.0;
}
});
updateOverlay();
});
});

32
examples/resources/external-map-map.html
View File

@@ -6,13 +6,39 @@
body {
margin: 0;
}
.map {
.container {
position: relative;
height: 100%;
width: 100%;
}
#unusable-overlay,
.map {
position: absolute;
top: 0;
left: 0;
height: 100%;
width: 100%;
}
.unusable #unusable-overlay {
background-color: rgba(0, 0, 0, .7);
font-size: 3rem;
font-weight: bold;
color: white;
display: flex;
align-items: center;
user-select: none;
justify-content: center;
font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
}
.unusable .map .ol-control {
display: none;
}
</style>
</head>
<body>
<div id="map" class="map" tabindex="0"></div>
<body class="container">
<div id="map" class="map"></div>
<div id="unusable-overlay" hidden>
<span>Map not usable</span>
</div>
</body>
</html>