Generate a frame when a transaction scrolls
This no longer happens automatically in WebRender, so we must do it
manually.
Fixes#20762.
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fix(capture_webrender): try fallback capture dir
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This PR try to update behavior of webrender capture to have fallback dir - first it try to create under current working dir, if fails go back to $TMPDIR. I was debating between TMP vs $home, bit hesitate to create some folder under user's home dir directly so choose TMP instead. Can be easily changed, or add few more if needed.
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feat(capture_webrender): write webrender revision into text
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Relates to https://github.com/servo/servo/pull/20315#issuecomment-373819735.
This PR try to generate `wr.txt` when trigger webrender capture. By reading gecko's implementation at [here](3b8e63c66a/gfx/doc/README.webrender (L53)), it seems gecko's build script generates txt file for containing revision of webrender and read it each time trigger capturing.
In this PR tries to similar in cruxwise with small differences:
- `cargo build` reads `cargo.lock`, export it into `${OUT_DIR}/`, included via macro in build time.
- when capturing triggered, those revision will be written as `wr.txt`.
Probably point of discussion & need to be updated in PR if necessary:
~- Is it acceptable `mach` generates module file on build bootstrapping? Should there be other recommendation?~ Now cargo build takes care of generation.
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Use typed coordinates more
Requires https://github.com/servo/servo/pull/19895
We use Size2D and Point2D across compositing, constellation and script, loosing the type of pixels we use (DevicePixel, DeviceIndepententPixel or CSSPixel) along the way, which might lead to bugs like `window.outerHeight` not taking into account the page zoom (using DeviceIndepententPixel instead of CSSPixel).
This should make the situation a bit better.
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We use Size2D and Point2D across compositing, constellation and script,
losing the type of pixels we use (DevicePixel, DeviceIndepententPixel
or CSSPixel) along the way, which might lead to bugs like
window.outerHeight not taking into account the page zoom (using
DeviceIndepententPixel instead of CSSPixel).
