ladybird/Tests/LibWeb/Ref/scroll-iframe.html
Aliaksandr Kalenik 5285e22f2a LibWeb+WebContent: Move scrollbar painting into WebContent
The main intention of this change is to have a consistent look and
behavior across all scrollbars, including elements with
`overflow: scroll` and `overflow: auto`, iframes, and a page.

Before:
- Page's scrollbar is painted by Browser (Qt/AppKit) using the
  corresponding UI framework style,
- Both WebContent and Browser know the scroll position offset.
- WebContent uses did_request_scroll_to() IPC call to send updates.
- Browser uses set_viewport_rect() to send updates.

After:
- Page's scrollbar is painted on WebContent side using the same style as
  currently used for elements with `overflow: scroll` and
  `overflow: auto`. A nice side effects: scrollbars are now painted for
  iframes, and page's scrollbar respects scrollbar-width CSS property.
- Only WebContent knows scroll position offset.
- did_request_scroll_to() is no longer used.
- set_viewport_rect() is changed to set_viewport_size().
2024-06-05 07:03:42 +02:00

27 lines
786 B
HTML

<!DOCTYPE html>
<link rel="match" href="reference/scroll-iframe-ref.html" />
<style>
iframe {
width: 200px;
height: 200px;
border: 1px solid black;
}
</style>
<body></body>
<script>
const iframe = document.createElement("iframe");
iframe.srcdoc = `
<style>
body { margin: 0 }
html { scrollbar-width: none; }
</style>
<div style="width: 200px; height: 200px; background-color: darkblue"></div>
<div style="width: 200px; height: 200px; background-color: blue"></div>
<div style="width: 200px; height: 200px; background-color: magenta"></div>
`;
iframe.onload = function () {
iframe.contentWindow.scroll(0, 200);
};
document.body.appendChild(iframe);
</script>