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71 lines
1.3 KiB
HTML
71 lines
1.3 KiB
HTML
<!DOCTYPE html>
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<html lang="en" class="reftest-wait">
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<meta charset="utf-8">
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<title>Removing an existing display item from the bottom of an existing PaintedLayer shouldn't cause the other items in that layer to change layers</title>
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<style>
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.content {
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box-sizing: border-box;
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width: 200px;
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height: 200px;
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border: 1px solid black;
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}
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.fixed {
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position: fixed;
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top: 20px;
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left: 140px;
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}
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.onTopOfFixed {
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position: absolute;
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top: 120px;
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left: 260px;
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}
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.reftest-no-paint {
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border-color: lime;
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}
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#aboutToBecomeHidden {
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left: 20px;
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}
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body {
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margin: 0;
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padding: 20px;
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height: 3000px;
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}
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</style>
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<div class="fixed content">
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<!--
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This layer is just there to force .onTopOfFixed into a PaintedLayer above
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the page background.
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-->
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</div>
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<div class="onTopOfFixed content" id="aboutToBecomeHidden" style="visibility: visible">
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<!--
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This item starts out visible, in the same layer as the other .onTopOfFixed item.
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-->
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</div>
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<div class="onTopOfFixed reftest-no-paint content">
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<!--
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This item shouldn't repaint when the other .onTopOfFixed item becomes invisible.
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-->
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</div>
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<script>
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function doTest() {
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document.querySelector("#aboutToBecomeHidden").style.visibility = "hidden";
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document.documentElement.removeAttribute("class");
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}
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document.addEventListener("MozReftestInvalidate", doTest, false);
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</script>
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