track and update cursor while scrolling
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This PR follows PR #23313 to fix the issue #12604 by adding a field `cursor_pos: DevicePoint` to `IOCompositor` and adding a `update_cursor()` method. This is based on the improvements suggested by @paulrouget in this [feedback](https://github.com/servo/servo/pull/23313#issuecomment-489017975) comment.
This is my first time contributing to open source, i would love any feedback.
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Note: The WheelEvent interface supports rotation in all 3 spatial
dimensions. This implementation only supports two due to limitations
in the Glutin compositor.
The wheelevent interface is a dom interface that triggers for any
attached device that can rotate in one or more spatial dimensions.
Traditionally this is the mouse wheel though other devices could be
used as well. E.g. the trackball on a trackball mouse.
Fix behaviour of window resizing on Windows.
This makes Windows builds usable when the window is resized.
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- [x] These changes fix#23489
- [x] These changes do not require tests because we can't run tests on Windows CI yet.
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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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- [x] These changes do not require tests because Servo does not currently test scrolling in a reliable way.
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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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- [x] These changes fix#20746 (github issue number if applicable).
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- locally verified on mac os
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