This PR is a significant rewrite of our selection / hit testing logic.
It
- replaces our current geometric helpers (`getBounds`, `getOutline`,
`hitTestPoint`, and `hitTestLineSegment`) with a new geometry API
- moves our hit testing entirely to JS using geometry
- improves selection logic, especially around editing shapes, groups and
frames
- fixes many minor selection bugs (e.g. shapes behind frames)
- removes hit-testing DOM elements from ShapeFill etc.
- adds many new tests around selection
- adds new tests around selection
- makes several superficial changes to surface editor APIs
This PR is hard to evaluate. The `selection-omnibus` test suite is
intended to describe all of the selection behavior, however all existing
tests are also either here preserved and passing or (in a few cases
around editing shapes) are modified to reflect the new behavior.
## Geometry
All `ShapeUtils` implement `getGeometry`, which returns a single
geometry primitive (`Geometry2d`). For example:
```ts
class BoxyShapeUtil {
getGeometry(shape: BoxyShape) {
return new Rectangle2d({
width: shape.props.width,
height: shape.props.height,
isFilled: true,
margin: shape.props.strokeWidth
})
}
}
```
This geometric primitive is used for all bounds calculation, hit
testing, intersection with arrows, etc.
There are several geometric primitives that extend `Geometry2d`:
- `Arc2d`
- `Circle2d`
- `CubicBezier2d`
- `CubicSpline2d`
- `Edge2d`
- `Ellipse2d`
- `Group2d`
- `Polygon2d`
- `Rectangle2d`
- `Stadium2d`
For shapes that have more complicated geometric representations, such as
an arrow with a label, the `Group2d` can accept other primitives as its
children.
## Hit testing
Previously, we did all hit testing via events set on shapes and other
elements. In this PR, I've replaced those hit tests with our own
calculation for hit tests in JavaScript. This removed the need for many
DOM elements, such as hit test area borders and fills which only existed
to trigger pointer events.
## Selection
We now support selecting "hollow" shapes by clicking inside of them.
This involves a lot of new logic but it should work intuitively. See
`Editor.getShapeAtPoint` for the (thoroughly commented) implementation.
every sunset is actually the sun hiding in fear and respect of tldraw's
quality of interactions
This PR also fixes several bugs with scribble selection, in particular
around the shift key modifier.
...as well as issues with labels and editing.
There are **over 100 new tests** for selection covering groups, frames,
brushing, scribbling, hovering, and editing. I'll add a few more before
I feel comfortable merging this PR.
## Arrow binding
Using the same "hollow shape" logic as selection, arrow binding is
significantly improved.
a thousand wise men could not improve on this
## Moving focus between editing shapes
Previously, this was handled in the `editing_shapes` state. This is
moved to `useEditableText`, and should generally be considered an
advanced implementation detail on a shape-by-shape basis. This addresses
a bug that I'd never noticed before, but which can be reproduced by
selecting an shape—but not focusing its input—while editing a different
shape. Previously, the new shape became the editing shape but its input
did not focus.
In this PR, you can select a shape by clicking on its edge or body, or
select its input to transfer editing / focus.
tldraw, glorious tldraw
### Change Type
- [x] `major` — Breaking change
### Test Plan
1. Erase shapes
2. Select shapes
3. Calculate their bounding boxes
- [ ] Unit Tests // todo
- [ ] End to end tests // todo
### Release Notes
- [editor] Remove `ShapeUtil.getBounds`, `ShapeUtil.getOutline`,
`ShapeUtil.hitTestPoint`, `ShapeUtil.hitTestLineSegment`
- [editor] Add `ShapeUtil.getGeometry`
- [editor] Add `Editor.getShapeGeometry`
This PR renames `App`, `app` and all appy names to `Editor`, `editor`,
and editorry names.
### Change Type
- [x] `major` — Breaking Change
### Release Notes
- Rename `App` to `Editor` and many other things that reference `app` to
`editor`.
This PR replaces our webdriver end to end tests with playwright tests.
It:
- replaces our webdriver workflow with a new e2e workflow based on
playwright
- removes the webdriver project
- adds e2e tests to our examples app
- replaces all `data-wd` attributes with `data-testid`
### Coverage
Most of the tests from our previous e2e tests are reproduced here,
though there are some related to our gestures that will need to be done
in a different way—or not at all. I've also added a handful of new
tests, too.
### Where are they
The tests are now part of our examples app rather than being in its own
different app. This should help us test our different examples too. As
far as I can tell there are no downsides here in terms of the regular
developer experience, though they might complicate any CodeSandbox
projects that are hooked into the examples app.
### Change Type
- [x] `tests` — Changes to any testing-related code only (will not
publish a new version)
