94ab95b34c
This patch ensures that we don't use the render pass occlusion if that pass is a shared element. Since we know we will be moving the shared element around, we can't occlude the content underneath. Otherwise, we can draw uninitialized content. Adds a test to illustrate. R=kylechar@chromium.org, vasilyt@chromium.org Fixed: 1200646 Change-Id: I54595a0c07b1211fc7cbe506bdab93d87458c04e Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2847680 Reviewed-by: Vasiliy Telezhnikov <vasilyt@chromium.org> Reviewed-by: kylechar <kylechar@chromium.org> Commit-Queue: vmpstr <vmpstr@chromium.org> Cr-Commit-Position: refs/heads/master@{#875670}
66 lines
1.2 KiB
HTML
66 lines
1.2 KiB
HTML
<!DOCTYPE html>
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<html>
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<title>Shared transitions of different elements and shapes</title>
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<link rel="help" href="https://github.com/vmpstr/shared-element-transitions">
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<link rel="author" href="mailto:vmpstr@chromium.org">
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<style>
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body {
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background: lightpink;
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overflow: hidden;
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}
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input {
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position: absolute;
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left: 8px;
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top: 8px;
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z-index: 10;
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}
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.top {
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top: 0px;
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}
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.bottom {
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bottom: 0px;
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}
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div {
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position: absolute;
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left: 0px;
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right: 0px;
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height: 40vh;
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background: green;
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contain: paint;
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}
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</style>
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<input id=toggle type=button value="Toggle!"></input>
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<div id=target class=top>
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The green div should alternate being at the bottom and at the top.
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Other than green and pink background no other colors should appear.
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</div>
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<script>
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let classes = ["top", "bottom"]
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let i = 0;
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async function runAnimation() {
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await document.documentTransition.prepare({
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rootTransition: "none",
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sharedElements: [target]
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});
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target.classList.remove(classes[i]);
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i = (i + 1) % classes.length;
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target.classList.add(classes[i]);
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await document.documentTransition.start({
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sharedElements: [target]
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});
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}
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function init() {
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toggle.addEventListener("click", runAnimation);
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}
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onload = init;
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</script>
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