Quelle desktop-mode.html Sprache: HTML

products/Sources/formale Sprachen/C/Firefox/layout/reftests/meta-viewport/desktop-mode.html

<!DOCTYPE html>
<html class="reftest-wait">
<style>
html {
  height: 100%;
  width: 100%;
}
body {
  height: 2000px;
  width: 200%;
  margin: 0px;
  padding: 0px;
}
div {
  width: 20px;
  height: 100%;
  top: 0px;
  background-color: green;
}
</style>
<div style="right: 0px; position: fixed;"></div>
<div style="right: 25px; position: absolute;"></div>
<script>
async function go() {
  let win = SpecialPowers.wrap(window);
  let origVal = await SpecialPowers.spawnChrome([win.browsingContext.id],
                                                id => {
    // We enable 'forceDesktopViewport' (which is otherwise off-by-default)
    // and we test our rendering under that condition.  It's important that we
    // are followed by reftest "desktop-mode-cleanup.html" which will revert
    // this change for us, so that forceDesktopViewport doesn't remain on for
    // subsequent tests.
    let ctx = BrowsingContext.get(id);
    let origVal = ctx.forceDesktopViewport;
    ctx.forceDesktopViewport = true;
    return origVal;
  });

  if (origVal) {
    // UNEXPECTED: if we get here, then forceDesktopViewport was somehow
    // true already (when it should be at its default 'false')! Either we've
    // got the wrong assumption about the default value, or some earlier test
    // enabled it and forgot to clean up after themselves.
    //
    // NOTE: We could signal a test-failure in this circumstance,
    // by e.g. setting the background to red...
    //   document.body.style.background = "red";
    // ...but that also makes this test trivially fail in 'test-verify' runs
    // per bug 1915025 comment 17 through 19, so let's not do that for now.
    // So for now, we handle this unexpected condition silently/gracefully.
    // I'm leaving this (no-op) if-check in the test in case it's useful
    // for debugging/logging at some point, though.
  }
  document.documentElement.classList.remove('reftest-wait');
}

go();
</script>
</html>

Messung V0.5

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