1. We will add more shape-like types in the future, so it's better to
use union to reduce the memory usage.
2. Those shape-like types are mutual exclusive, so we could use union to
wrap them.
Differential Revision: https://phabricator.services.mozilla.com/D2746
Format components bluetooth and bluetooth_traits
<!-- Please describe your changes on the following line: -->
```bash
rustfmt components/bluetooth/*.rs
rustfmt components/bluetooth_traits/*.rs
```
---
<!-- Thank you for contributing to Servo! Please replace each `[ ]` by `[X]` when the step is complete, and replace `__` with appropriate data: -->
- [x] `./mach build -d` does not report any errors
- [x] `./mach test-tidy` does not report any errors
- [x] These changes fix a part of #21373 .
- [x] These changes do not require tests because it's code format change.
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---
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Format components atoms
<!-- Please describe your changes on the following line: -->
```bash
rustfmt components/atoms/*.rs
```
---
<!-- Thank you for contributing to Servo! Please replace each `[ ]` by `[X]` when the step is complete, and replace `__` with appropriate data: -->
- [x] `./mach build -d` does not report any errors
- [x] `./mach test-tidy` does not report any errors
- [x] These changes fix a part of #21373 .
- [x] These changes do not require tests because it's code format change.
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---
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Add macOS gstreamer setup
This was obtained from the gstreamer website rather than looking for a minimal set of install targets.
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Format component allocator
<!-- Please describe your changes on the following line: -->
Format `components/allocator` with:
```bash
rustfmt components/allocator/*.rs
```
---
<!-- Thank you for contributing to Servo! Please replace each `[ ]` by `[X]` when the step is complete, and replace `__` with appropriate data: -->
- [ ] `./mach build -d` does not report any errors. Waiting for #21423 to be resolved.
- [x] `./mach test-tidy` does not report any errors
- [ ] These changes fix a part of #21373.
- [x] These changes do not require tests because they format the code only.
<!-- Also, please make sure that "Allow edits from maintainers" checkbox is checked, so that we can help you if you get stuck somewhere along the way.-->
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Pinch to zoom
Implement pinch to zoom.
Also, I added a marker in the toolbar to show if Servo is redrawing or not.
The label switches from "IDLE" to "LOOP" when Servo is looping (at 60FPS) to redraw the page.
Redrawing is necessary for 3 reasons:
- a CSS animation is ongoing
- scrolling
- zooming
This label is, for now, necessary to make sure we are not looping for not reason.
---
- [x] `./mach build -d` does not report any errors
- [x] `./mach test-tidy` does not report any errors
- [x] These changes fix#21303 (github issue number if applicable).
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More gstreamer dependencies
Was running into this issue:
```
error: failed to run custom build command for `gstreamer-player-sys v0.5.0`
process didn't exit successfully: `/home/paul/git/servo/target/debug/build/gstreamer-player-sys-3591c80c70153c3c/build-script-build` (exit code: 1)
--- stderr
`"pkg-config" "--libs" "--cflags" "gstreamer-player-1.0 >= 1.12"` did not exit successfully: exit code: 1
--- stderr
Package gstreamer-player-1.0 was not found in the pkg-config search path.
Perhaps you should add the directory containing `gstreamer-player-1.0.pc'
to the PKG_CONFIG_PATH environment variable
No package 'gstreamer-player-1.0' found
```
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---
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