add_task(async function test1() {
await SpecialPowers.pushPrefEnv(scaleRatio(1.0));
let info = getViewportInfo(800, 480);
is(info.minZoom, 0.75, "minumum scale is set explicitly");
is(info.defaultZoom, 0.75, "initial scale is bounded by the minimum scale");
is(info.maxZoom, 10, "maximum scale defaults to the absolute maximum");
is(info.width, 2000, "width is set explicitly");
is(info.height, 1200, "height is proportional to displayHeight");
is(info.autoSize, false, "autoSize is disabled by default");
is(info.allowZoom, true, "zooming is enabled by default");
info = getViewportInfo(2000, 1000);
is(info.minZoom, 0.75, "minumum scale is still set explicitly");
is(info.defaultZoom, 1, "initial scale fits the width");
is(info.width, 2000, "width is set explicitly");
is(info.height, 1000, "height is proportional to the new displayHeight");
});
add_task(async function test2() {
await SpecialPowers.pushPrefEnv(scaleRatio(1.5));
let info = getViewportInfo(800, 480);
is(info.minZoom, 1.125, "minumum scale is converted to device pixel scale");
is(info.defaultZoom, 1.125, "initial scale is bounded by the minimum scale");
is(info.maxZoom, 15, "maximum scale defaults to the absolute maximum");
is(info.width, 2000, "width is still set explicitly");
is(info.height, 1200, "height is still proportional to displayHeight");
});
</script>
</body>
</html>
Messung V0.5 in Prozent
¤ Dauer der Verarbeitung: 0.12 Sekunden
(vorverarbeitet am 2026-08-27)
¤
Die Informationen auf dieser Webseite wurden
nach bestem Wissen sorgfältig zusammengestellt. Es wird jedoch weder Vollständigkeit, noch Richtigkeit,
noch Qualität der bereit gestellten Informationen zugesichert.
Bemerkung:
Die farbliche Syntaxdarstellung und die Messung sind noch experimentell.
