We upgraded our version of `tar`, but forgot to update this import. This
fixes that.
### Change Type
- [x] `internal` — Does not affect user-facing stuff
- [x] `bugfix` — Bug fix
We're missing the export for `createShapePropsMigrationIds`, so lets add
it. This also fixes some other bits that were used in examples but not
exported properly from tldraw.
### Change Type
- [x] `sdk` — Changes the tldraw SDK
- [x] `bugfix` — Bug fix
### Release Notes
- Expose `createShapePropsMigrationIds`, `defaultEditorAssetUrls`,
`PORTRAIT_BREAKPOINT`, `useDefaultColorTheme`, & `getPerfectDashProps`
Add a section to our docs site explaining how tldraw is versioned and
adding a changelog pulled from github.
### Change Type
- [x] `docs` — Changes to the documentation, examples, or templates.
- [x] `feature` — New feature
This PR will only show the bottom handle on a sticky note when zoomed
out.
### Change Type
- [x] `sdk` — Changes the tldraw SDK
- [x] `improvement` — Improving existing features
### Test Plan
1. Zoom out to 45%.
2. The bottom handle should be visible.
3. The bottom handle should work as expected.
### Release Notes
- Show only the bottom handle on notes when zoomed between .25 and .5
This PR fixes the transparent viewport in the minimap. It also bumps the
size of collaborators.
### Change Type
- [x] `sdk` — Changes the tldraw SDK
- [x] `improvement` — Improving existing features
Seems like `tar` is moving to `ts` in version 7 and this caused some
issues with imports.
Saw this issue on [readonly
PR](https://github.com/tldraw/tldraw/actions/runs/8783569356/job/24099998235?pr=3192#step:6:684),
looks like a result of a [dependabot
PR](https://github.com/tldraw/tldraw/pull/3505).
### Change Type
<!-- ❗ Please select a 'Scope' label ❗️ -->
- [ ] `sdk` — Changes the tldraw SDK
- [ ] `dotcom` — Changes the tldraw.com web app
- [ ] `docs` — Changes to the documentation, examples, or templates.
- [ ] `vs code` — Changes to the vscode plugin
- [x] `internal` — Does not affect user-facing stuff
<!-- ❗ Please select a 'Type' label ❗️ -->
- [ ] `bugfix` — Bug fix
- [ ] `feature` — New feature
- [ ] `improvement` — Improving existing features
- [ ] `chore` — Updating dependencies, other boring stuff
- [ ] `galaxy brain` — Architectural changes
- [ ] `tests` — Changes to any test code
- [x] `tools` — Changes to infrastructure, CI, internal scripts,
debugging tools, etc.
- [ ] `dunno` — I don't know
Expose `usePreloadAssets` and make sure the exploded/sublibraries
examples uses it. Before this change, fonts weren't loaded correctly for
the exploded example.
### Change Type
- [x] `sdk` — Changes the tldraw SDK
- [x] `docs` — Changes to the documentation, examples, or templates.
- [x] `bugfix` — Bug fix
Bumps the npm_and_yarn group with 2 updates in the / directory:
[vite](https://github.com/vitejs/vite/tree/HEAD/packages/vite) and
[tar](https://github.com/isaacs/node-tar).
Updates `vite` from 5.2.8 to 5.2.9
<details>
<summary>Changelog</summary>
<p><em>Sourced from <a
href="https://github.com/vitejs/vite/blob/main/packages/vite/CHANGELOG.md">vite's
changelog</a>.</em></p>
<blockquote>
<h2><!-- raw HTML omitted -->5.2.9 (2024-04-15)<!-- raw HTML omitted
--></h2>
<ul>
<li>fix: <code>fsp.rm</code> removing files does not take effect (<a
href="https://github.com/vitejs/vite/tree/HEAD/packages/vite/issues/16032">#16032</a>)
(<a href="https://github.com/vitejs/vite/commit/b05c405">b05c405</a>),
closes <a
href="https://redirect.github.com/vitejs/vite/issues/16032">#16032</a></li>
<li>fix: fix accumulated stacks in error overlay (<a
href="https://github.com/vitejs/vite/tree/HEAD/packages/vite/issues/16393">#16393</a>)
(<a href="https://github.com/vitejs/vite/commit/102c2fd">102c2fd</a>),
closes <a
href="https://redirect.github.com/vitejs/vite/issues/16393">#16393</a></li>
<li>fix(deps): update all non-major dependencies (<a
href="https://github.com/vitejs/vite/tree/HEAD/packages/vite/issues/16376">#16376</a>)
(<a href="https://github.com/vitejs/vite/commit/58a2938">58a2938</a>),
closes <a
href="https://redirect.github.com/vitejs/vite/issues/16376">#16376</a></li>
<li>chore: update region comment (<a
href="https://github.com/vitejs/vite/tree/HEAD/packages/vite/issues/16380">#16380</a>)
(<a href="https://github.com/vitejs/vite/commit/77562c3">77562c3</a>),
closes <a
href="https://redirect.github.com/vitejs/vite/issues/16380">#16380</a></li>
<li>perf: reduce size of injected __vite__mapDeps code (<a
href="https://github.com/vitejs/vite/tree/HEAD/packages/vite/issues/16184">#16184</a>)
(<a href="https://github.com/vitejs/vite/commit/c0ec6be">c0ec6be</a>),
closes <a
href="https://redirect.github.com/vitejs/vite/issues/16184">#16184</a></li>
<li>perf(css): only replace empty chunk if imported (<a
href="https://github.com/vitejs/vite/tree/HEAD/packages/vite/issues/16349">#16349</a>)
(<a href="https://github.com/vitejs/vite/commit/e2658ad">e2658ad</a>),
closes <a
href="https://redirect.github.com/vitejs/vite/issues/16349">#16349</a></li>
</ul>
</blockquote>
</details>
<details>
<summary>Commits</summary>
<ul>
<li><a
href="a77707d69c"><code>a77707d</code></a>
release: v5.2.9</li>
<li><a
href="102c2fd5ad"><code>102c2fd</code></a>
fix: fix accumulated stacks in error overlay (<a
href="https://github.com/vitejs/vite/tree/HEAD/packages/vite/issues/16393">#16393</a>)</li>
<li><a
href="58a2938a97"><code>58a2938</code></a>
fix(deps): update all non-major dependencies (<a
href="https://github.com/vitejs/vite/tree/HEAD/packages/vite/issues/16376">#16376</a>)</li>
<li><a
href="77562c3ff2"><code>77562c3</code></a>
chore: update region comment (<a
href="https://github.com/vitejs/vite/tree/HEAD/packages/vite/issues/16380">#16380</a>)</li>
<li><a
href="b05c405f68"><code>b05c405</code></a>
fix: <code>fsp.rm</code> removing files does not take effect (<a
href="https://github.com/vitejs/vite/tree/HEAD/packages/vite/issues/16032">#16032</a>)</li>
<li><a
href="e2658ad6fe"><code>e2658ad</code></a>
perf(css): only replace empty chunk if imported (<a
href="https://github.com/vitejs/vite/tree/HEAD/packages/vite/issues/16349">#16349</a>)</li>
<li><a
href="c0ec6bea69"><code>c0ec6be</code></a>
perf: reduce size of injected __vite__mapDeps code (<a
href="https://github.com/vitejs/vite/tree/HEAD/packages/vite/issues/16184">#16184</a>)</li>
<li>See full diff in <a
href="https://github.com/vitejs/vite/commits/v5.2.9/packages/vite">compare
view</a></li>
</ul>
</details>
<br />
Updates `tar` from 6.2.1 to 7.0.1
<details>
<summary>Changelog</summary>
<p><em>Sourced from <a
href="https://github.com/isaacs/node-tar/blob/main/CHANGELOG.md">tar's
changelog</a>.</em></p>
<blockquote>
<h1>Changelog</h1>
<h2>7.0</h2>
<ul>
<li>Rewrite in TypeScript, provide ESM and CommonJS hybrid
interface</li>
<li>Add tree-shake friendly exports, like
<code>import('tar/create')</code>
and <code>import('tar/read-entry')</code> to get individual functions or
classes.</li>
<li>Add <code>chmod</code> option that defaults to false, and deprecate
<code>noChmod</code>. That is, reverse the default option regarding
explicitly setting file system modes to match tar entry
settings.</li>
<li>Add <code>processUmask</code> option to avoid having to call
<code>process.umask()</code> when <code>chmod: true</code> (or
<code>noChmod: false</code>) is
set.</li>
</ul>
<h2>6.2</h2>
<ul>
<li>Add support for brotli compression</li>
<li>Add <code>maxDepth</code> option to prevent extraction into
excessively
deep folders.</li>
</ul>
<h2>6.1</h2>
<ul>
<li>remove dead link to benchmarks (<a
href="https://redirect.github.com/isaacs/node-tar/issues/313">#313</a>)
(<a href="https://github.com/yetzt"><code>@yetzt</code></a>)</li>
<li>add examples/explanation of using tar.t (<a
href="https://github.com/isaacs"><code>@isaacs</code></a>)</li>
<li>ensure close event is emited after stream has ended (<a
href="https://github.com/webark"><code>@webark</code></a>)</li>
<li>replace deprecated String.prototype.substr() (<a
href="https://github.com/CommanderRoot"><code>@CommanderRoot</code></a>,
<a
href="https://github.com/lukekarrys"><code>@lukekarrys</code></a>)</li>
</ul>
<h2>6.0</h2>
<ul>
<li>Drop support for node 6 and 8</li>
<li>fix symlinks and hardlinks on windows being packed with
<code>\</code>-style path targets</li>
</ul>
<h2>5.0</h2>
<ul>
<li>Address unpack race conditions using path reservations</li>
<li>Change large-numbers errors from TypeError to Error</li>
<li>Add <code>TAR_*</code> error codes</li>
<li>Raise <code>TAR_BAD_ARCHIVE</code> warning/error when there are no
valid
entries found in an archive</li>
<li>do not treat ignored entries as an invalid archive</li>
<li>drop support for node v4</li>
<li>unpack: conditionally use a file mapping to write files on
Windows</li>
<li>Set more portable 'mode' value in portable mode</li>
<li>Set <code>portable</code> gzip option in portable mode</li>
</ul>
<!-- raw HTML omitted -->
</blockquote>
<p>... (truncated)</p>
</details>
<details>
<summary>Commits</summary>
<ul>
<li><a
href="d99fce38eb"><code>d99fce3</code></a>
7.0.1</li>
<li><a
href="af043922c0"><code>af04392</code></a>
Do not apply linkpath,global from global pax header</li>
<li><a
href="b0fbdea463"><code>b0fbdea</code></a>
7.0.0</li>
<li><a
href="957da7506c"><code>957da75</code></a>
remove old lib folder</li>
<li><a
href="9a260c2dba"><code>9a260c2</code></a>
test verifying <a
href="https://redirect.github.com/isaacs/node-tar/issues/398">#398</a>
is fixed</li>
<li><a
href="2d89a4edc3"><code>2d89a4e</code></a>
Properly handle long linkpath in PaxHeader</li>
<li><a
href="314ec7e642"><code>314ec7e</code></a>
list: close file even if no error thrown</li>
<li><a
href="b3afdbb264"><code>b3afdbb</code></a>
unpack test: use modern tap features</li>
<li><a
href="2330416081"><code>2330416</code></a>
test: code style, prefer () to _ for empty fns</li>
<li><a
href="ae9ce7ec2a"><code>ae9ce7e</code></a>
test: fix normalize-unicode coverage on linux</li>
<li>Additional commits viewable in <a
href="https://github.com/isaacs/node-tar/compare/v6.2.1...v7.0.1">compare
view</a></li>
</ul>
</details>
<br />
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Co-authored-by: Steve Ruiz <steveruizok@gmail.com>
Tiny changes as I walk through freehand code. These would only really
make a difference on pages with many freehand shapes.
### Change Type
- [x] `sdk` — Changes the tldraw SDK
- [x] `improvement` — Improving existing features
### Release Notes
- Improve performance of draw shapes.
This PR calls prevent default on native clipboard events. This prevents
the error sound on Safari.
### Change Type
- [x] `sdk` — Changes the tldraw SDK
- [x] `bugfix` — Bug fix
### Test Plan
1. Use the cut, copy, and paste events on Safari.
2. Everything should still work, but no sounds should play.
### Release Notes
- Fix copy sound on clipboard events.
This PR replaces our current minimap implementation with one that uses
WebGL
### Change Type
<!-- ❗ Please select a 'Scope' label ❗️ -->
- [x] `sdk` — Changes the tldraw SDK
- [ ] `dotcom` — Changes the tldraw.com web app
- [ ] `docs` — Changes to the documentation, examples, or templates.
- [ ] `vs code` — Changes to the vscode plugin
- [ ] `internal` — Does not affect user-facing stuff
<!-- ❗ Please select a 'Type' label ❗️ -->
- [ ] `bugfix` — Bug fix
- [ ] `feature` — New feature
- [x] `improvement` — Improving existing features
- [ ] `chore` — Updating dependencies, other boring stuff
- [ ] `galaxy brain` — Architectural changes
- [ ] `tests` — Changes to any test code
- [ ] `tools` — Changes to infrastructure, CI, internal scripts,
debugging tools, etc.
- [ ] `dunno` — I don't know
### Test Plan
1. Add a step-by-step description of how to test your PR here.
2.
- [ ] Unit Tests
- [ ] End to end tests
### Release Notes
- Add a brief release note for your PR here.
---------
Co-authored-by: Steve Ruiz <steveruizok@gmail.com>
This PR improves the "back to content" behavior. Rather than using an
interval, we now add a "camera-stopped" event that triggers the check.
### Change Type
- [x] `sdk` — Changes the tldraw SDK
- [x] `improvement`
### Test Plan
1. Create some shapes, then move the camera to an empty part of the
canvas.
2. Check that the back to content button appears.
3. Ensure that the back to content button does not appear when the
canvas is empty.
This is a huge perf win, and it came to me while procrastinating on
making dinner.
The idea is that we can skip checking the parents of a computed value if
- it is being dereferenced during a reaction cycle
- the computed value was not traversed during the current reaction cycle
This more than doubles the speed of the webgl minimap render on my
machine (from 2ms down to like 0.8ms).
This will make the biggest difference for anything that derives a value
from a large collection of other computed values where typically only a
small amount of them change at one time (e.g. iterating over all the
shape page bounds to compile an RBush)
Most code paths where we see a big chunk of `haveParentsChanged` in
flame graphs should be much faster after this.
### Change Type
- [x] `sdk` — Changes the tldraw SDK
- [x] `improvement` — Improving existing features
Minor thing, but there's two nodes with the same ID. I got rid of the
one on the HTMLContainer, either one seems fine to remove though
¯\\_(ツ)_/¯
<img width="546" alt="Screenshot 2024-04-17 at 14 53 32"
src="https://github.com/tldraw/tldraw/assets/469604/5c4acdef-842c-4c4a-b9fd-504e23837efe">
### Change Type
<!-- ❗ Please select a 'Scope' label ❗️ -->
- [x] `sdk` — Changes the tldraw SDK
- [ ] `dotcom` — Changes the tldraw.com web app
- [ ] `docs` — Changes to the documentation, examples, or templates.
- [ ] `vs code` — Changes to the vscode plugin
- [ ] `internal` — Does not affect user-facing stuff
<!-- ❗ Please select a 'Type' label ❗️ -->
- [x] `bugfix` — Bug fix
- [ ] `feature` — New feature
- [ ] `improvement` — Improving existing features
- [ ] `chore` — Updating dependencies, other boring stuff
- [ ] `galaxy brain` — Architectural changes
- [ ] `tests` — Changes to any test code
- [ ] `tools` — Changes to infrastructure, CI, internal scripts,
debugging tools, etc.
- [ ] `dunno` — I don't know
Fixes culling for cases when another user would drag shapes inside your
viewport. We weren't correctly calculating the culling status for arrows
that might be bound to those shapes and also for shapes within dragged
in groups / frames.
### Change Type
<!-- ❗ Please select a 'Scope' label ❗️ -->
- [ ] `sdk` — Changes the tldraw SDK
- [ ] `dotcom` — Changes the tldraw.com web app
- [ ] `docs` — Changes to the documentation, examples, or templates.
- [ ] `vs code` — Changes to the vscode plugin
- [x] `internal` — Does not affect user-facing stuff
<!-- ❗ Please select a 'Type' label ❗️ -->
- [x] `bugfix` — Bug fix
- [ ] `feature` — New feature
- [ ] `improvement` — Improving existing features
- [ ] `chore` — Updating dependencies, other boring stuff
- [ ] `galaxy brain` — Architectural changes
- [ ] `tests` — Changes to any test code
- [ ] `tools` — Changes to infrastructure, CI, internal scripts,
debugging tools, etc.
- [ ] `dunno` — I don't know
### Test Plan
1. Open the same room in two browsers / tabs.
2. Have some shapes that are visible in one browser, but not the other.
3. Drag these shapes so that they are visible in the other browser as
well.
4. They should correctly get unculled.
5. Do this by dragging shapes that have arrows bound to them (arrows
should uncull), groups (shapes within them should uncull), frames.
- [x] Unit Tests
- [ ] End to end tests
### Release Notes
- Fix culling.
We shouldn't be making this something you have to negate everytime you
use `useEditableText`. The TextShape can just have its custom behavior
since that's the intended usecase. (although I think that Tab there
doesn't do much anyway, but whatevs)
### Change Type
<!-- ❗ Please select a 'Scope' label ❗️ -->
- [x] `sdk` — Changes the tldraw SDK
- [ ] `dotcom` — Changes the tldraw.com web app
- [ ] `docs` — Changes to the documentation, examples, or templates.
- [ ] `vs code` — Changes to the vscode plugin
- [ ] `internal` — Does not affect user-facing stuff
<!-- ❗ Please select a 'Type' label ❗️ -->
- [ ] `bugfix` — Bug fix
- [ ] `feature` — New feature
- [ ] `improvement` — Improving existing features
- [x] `chore` — Updating dependencies, other boring stuff
- [ ] `galaxy brain` — Architectural changes
- [ ] `tests` — Changes to any test code
- [ ] `tools` — Changes to infrastructure, CI, internal scripts,
debugging tools, etc.
- [ ] `dunno` — I don't know
This PR includes a "soft preload" feature for icons, where icons will be
loaded when the canvas first mounts. The component will not wait for
icons to finish loading before showing the editor, but this should help
with "pop in" on menu icons.
### Change Type
- [x] `sdk` — Changes the tldraw SDK
- [x] `improvement` — Improving existing features
### Test Plan
1. Load the component
2. After load, open a menu for the first time
3. The icons should immediately be visible
### Release Notes
- Improve icon preloading
(this is a PR redo of https://github.com/tldraw/tldraw/pull/3424 which
got messed up a bit)
It doesn't quite feel like this is the right fix but it does solve the
issue. I was trying to see if `getShapeAtPoint` needed more work but the
further I went in that rabbit hole it seemed like I shouldn't touch that
code without causing a bunch of disruption at the moment.
Specifically, the code that does `Check labels first` in Editor.ts is a
little obscure (lines 4384-4397). It only checks a couple specifics
shapes (with certain combinations, i.e. a geo with "none" fill) _and_ it
doesn't check `hitLabels` which also maybe feels wrong? I tried
unraveling it but there's a lot of code relying on it at the moment to
mess with it in the stickies work.
(I was looking at https://github.com/tldraw/tldraw/pull/1910 and
https://github.com/tldraw/tldraw/pull/1806 for historical context fwiw)
Before:
https://github.com/tldraw/tldraw/assets/469604/b263a192-2085-4ffb-9e47-6e9c32abe1f9
After:
https://github.com/tldraw/tldraw/assets/469604/5b0b422b-dd5c-4593-9ac5-dec595923ea6
### Change Type
<!-- ❗ Please select a 'Scope' label ❗️ -->
- [x] `sdk` — Changes the tldraw SDK
- [ ] `dotcom` — Changes the tldraw.com web app
- [ ] `docs` — Changes to the documentation, examples, or templates.
- [ ] `vs code` — Changes to the vscode plugin
- [ ] `internal` — Does not affect user-facing stuff
<!-- ❗ Please select a 'Type' label ❗️ -->
- [x] `bugfix` — Bug fix
- [ ] `feature` — New feature
- [ ] `improvement` — Improving existing features
- [ ] `chore` — Updating dependencies, other boring stuff
- [ ] `galaxy brain` — Architectural changes
- [ ] `tests` — Changes to any test code
- [ ] `tools` — Changes to infrastructure, CI, internal scripts,
debugging tools, etc.
- [ ] `dunno` — I don't know
The fix here was that we need to check if we're editing before
dispatching the pointer down event. This is some leftover DNA from code
when we had textareas always present and when
tl-svg-container/tl-html-container wasn't around. The
`setPointerCapture` was originally fixing a bug where dragging a shape
using the textlabel as the origin would start to breakdown when you got
to UI toolbar/panel.
Also, turns out we don't need the `setPointerCapture` anymore because of
the same reason.
### Change Type
<!-- ❗ Please select a 'Scope' label ❗️ -->
- [x] `sdk` — Changes the tldraw SDK
- [ ] `dotcom` — Changes the tldraw.com web app
- [ ] `docs` — Changes to the documentation, examples, or templates.
- [ ] `vs code` — Changes to the vscode plugin
- [ ] `internal` — Does not affect user-facing stuff
<!-- ❗ Please select a 'Type' label ❗️ -->
- [x] `bugfix` — Bug fix
- [ ] `feature` — New feature
- [ ] `improvement` — Improving existing features
- [ ] `chore` — Updating dependencies, other boring stuff
- [ ] `galaxy brain` — Architectural changes
- [ ] `tests` — Changes to any test code
- [ ] `tools` — Changes to infrastructure, CI, internal scripts,
debugging tools, etc.
- [ ] `dunno` — I don't know
This PR hides the cursor chat context menu button when not in select
tool.
fixes
https://github.com/orgs/tldraw/projects/41/views/1?pane=issue&itemId=59908615
### Change Type
<!-- ❗ Please select a 'Scope' label ❗️ -->
- [ ] `sdk` — Changes the tldraw SDK
- [x] `dotcom` — Changes the tldraw.com web app
- [ ] `docs` — Changes to the documentation, examples, or templates.
- [ ] `vs code` — Changes to the vscode plugin
- [ ] `internal` — Does not affect user-facing stuff
<!-- ❗ Please select a 'Type' label ❗️ -->
- [x] `bugfix` — Bug fix
- [ ] `feature` — New feature
- [ ] `improvement` — Improving existing features
- [ ] `chore` — Updating dependencies, other boring stuff
- [ ] `galaxy brain` — Architectural changes
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- [ ] `dunno` — I don't know
### Test Plan
1. Add a step-by-step description of how to test your PR here.
2.
- [ ] Unit Tests
- [ ] End to end tests
### Release Notes
- Fix cursor chat button appearing when not in select tool.
This PR fixes alt-duplicating shapes not working if you pointer-down'd
on their text label.
fixes
https://github.com/orgs/tldraw/projects/41/views/1?pane=issue&itemId=59901721
### Change Type
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- [x] `sdk` — Changes the tldraw SDK
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<!-- ❗ Please select a 'Type' label ❗️ -->
- [x] `bugfix` — Bug fix
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debugging tools, etc.
- [ ] `dunno` — I don't know
### Test Plan
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2.
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### Release Notes
- Add a brief release note for your PR here.
Describe what your pull request does. If appropriate, add GIFs or images
showing the before and after.
### Change Type
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- [x] `sdk` — Changes the tldraw SDK
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<!-- ❗ Please select a 'Type' label ❗️ -->
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This was necessary before but with latest refactors it doesn't help
anything. Also, it causes a minor issue with document title:
https://linear.app/tldraw/issue/TLD-2398/double-clicking-board-title-when-editing-text-doesnt-auto-select-the
### Change Type
<!-- ❗ Please select a 'Scope' label ❗️ -->
- [x] `sdk` — Changes the tldraw SDK
- [ ] `dotcom` — Changes the tldraw.com web app
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- [ ] `internal` — Does not affect user-facing stuff
<!-- ❗ Please select a 'Type' label ❗️ -->
- [x] `bugfix` — Bug fix
- [ ] `feature` — New feature
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- [ ] `chore` — Updating dependencies, other boring stuff
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This PR uses an additional ArraySet to make capturing parent
relationships faster for computeds with more than a handful of parents.
Seems to result in an overall ~20% speedup of the `maybeCaptureParent`
function in normal usage.
### Change Type
- [x] `sdk` — Changes the tldraw SDK
- [x] `improvement` — Improving existing features
### Test Plan
1. Add a step-by-step description of how to test your PR here.
2.
- [ ] Unit Tests
- [ ] End to end tests
### Release Notes
- Slight performance improvement to reactivity bookkeeping.
Something was bothering me a bit with the discussion around sqrt's being
slow. Looks like `Math.hypot` has a performance cost associated with it.
Looking at the Chromium source code:
https://chromium.googlesource.com/v8/v8/+/4.3.21/src/math.js?autodive=0%2F%2F#19
and
https://source.chromium.org/chromium/chromium/src/+/main:v8/src/builtins/math.tq;l=36?q=math&sq=&ss=chromium%2Fchromium%2Fsrc:v8%2Fsrc%2F
it looks like maybe we'd be avoiding the multiple arguments that can be
passed into Math.hypot which is maybe the source of the perf hit.
Also, interestingly in `math.tq` you can see it doing this funky sqrt
calculation: `Float64Sqrt((a / max) * (a / max) + (b / max) * (b / max))
* max` - I think that possibly is trying to avoid some overflow in some
cases with bigger numbers, but also possibly with a perf hit.
[edit]: OK, actually on Firefox, doing sqrt seems slower - but digging
more into this, it looks like doing `** 0.5` instead of `sqrt` is much
faster.
More related articles:
- https://stackoverflow.com/questions/71898044/why-is-math-hypot-so-slow
-
https://stackoverflow.com/questions/3764978/why-hypot-function-is-so-slow
-
https://www.reddit.com/r/javascript/comments/wk3e57/askjs_why_mathsqrt_is_so_slow_in_firefox/
[edit again!] looks like this is being fixed in the latest Chrome!
https://blog.seokho.dev/development/2024/03/18/V8-optimize-MathHypot.html
```
┌─────────┬───────┬─────────┬─────────┬─────────┬────────┐
│ (index) │ Cold │ Slowest │ Fastest │ Average │ Total │
├─────────┼───────┼─────────┼─────────┼─────────┼────────┤
│ old │ 13.39 │ 10.07 │ 9.69 │ 9.98 │ 998.57 │
│ sqrt │ 8.19 │ 6.66 │ 6.61 │ 6.67 │ 667.6 │
│ pow 0.5 │ 1.89 │ 0.28 │ 0.28 │ 0.3 │ 29.79 │
│ new │ 1.64 │ 0.28 │ 0.28 │ 0.29 │ 28.95 │
└─────────┴───────┴─────────┴─────────┴─────────┴────────┘
```
### Change Type
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Adds RBush to handle spatial querying. We use it for:
- Culling. Helps a lot with panning as we don't have to compute the
culled shapes from scratch. Instead we just query rbush again. It makes
culling quite granular: spatial index updates when shapes change
(additions, removals, changes to bounds), visible shapes depends on
that, but also updates when the viewport page bound change, culled
shapes then depend on that but also change with selections changes. The
api stayed the same, which is great since the fuzz tests can stay as
they are.
- Brushing
- Erasing
- Scribble brushing
- Getting shapes at point (for example, when updating the hover id)
This improves performance of all of those operations. I might have
missed some places where this might also be useful.
### Erasing before (Test on my old ipad)
https://github.com/tldraw/tldraw/assets/2523721/edb9c004-a44a-4779-b2d0-98617b057314
### Erasing after
https://github.com/tldraw/tldraw/assets/2523721/8f8367fd-fa8e-4963-ba13-720c5f0c2da5
### Creating an arrow before
https://github.com/tldraw/tldraw/assets/2523721/4068f8b7-f7b8-4826-83f2-083b1f3783bc
### After (much better, but still bad)
https://github.com/tldraw/tldraw/assets/2523721/11af6be6-01d8-4740-bf15-896e2dd31dd6
### Change Type
<!-- ❗ Please select a 'Scope' label ❗️ -->
- [ ] `sdk` — Changes the tldraw SDK
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<!-- ❗ Please select a 'Type' label ❗️ -->
- [ ] `bugfix` — Bug fix
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- [ ] `dunno` — I don't know
---------
Co-authored-by: Steve Ruiz <steveruizok@gmail.com>
