Rizumu Ayaka f4358cb161 perf: drop useMouseInElement to fix templates search lag (#12023)
## Summary

Replace `useMouseInElement` in `CompareSliderThumbnail` with a local
`@mousemove` handler to eliminate ~1s of forced layout per keystroke in
the templates dialog search.

## Changes

- **What**: Profiling the templates dialog search (4× CPU throttle,
cloud distribution) showed a single `getClientRects` block at 977ms
inside Vue's `flushPostFlushCbs → update` path on every keystroke. The
call traces back to VueUse's `useMouseInElement`, which (a) shares a
global `mousemove` listener via `useMouse`, and (b) runs
`el.getBoundingClientRect()` inside a `watch([targetRef, x, y], …, {
immediate: true })`. Every template card with `thumbnailVariant ===
'compareSlider'` mounts one instance — when search filters change and
the page's compareSlider cards re-mount, each instance's `immediate`
watch fires a rect read against freshly-inserted DOM, forcing
synchronous layout of the entire new subtree. With many cards on screen
the costs stack into the ~977ms block. Replaced with a native
`@mousemove` listener bound directly to the slider container; the rect
is read from `event.currentTarget` only when the mouse is actually over
that one card, so the work no longer scales with mounted instance count
and is gated by real pointer activity.
- **Breaking**: None
- **Dependencies**: None

## Review Focus

- UX is unchanged: `sliderPosition` still follows the mouse during hover
and keeps its last value on mouseleave (matches previous behaviour where
`if (!isHovered) return` simply stopped updates without resetting).
- The same `useMouseInElement` pattern still exists in
`src/platform/workflow/sharing/composables/useSliderFromMouse.ts` (used
by `ComfyHubThumbnailStep` in the publish dialog). That path is
single-instance and off the templates hot path, so it's left untouched
to keep this PR scoped — happy to fix it in a follow-up.
- New tests use `userEvent.pointer({ coords })` with a stubbed
`getBoundingClientRect` to lock in the native mousemove path and the
zero-width guard.

## E2E coverage

No `browser_tests/` changes. The `fix:` commit is a defensive clamp
inside `updateSliderPosition`; the overshoot it guards against comes
from subpixel rounding and stale rects observed during hover-in, neither
of which can be deterministically reproduced under Playwright. The perf
change itself is verified via the DevTools profiler (forced-layout block
disappears) — also not assertable as a stable e2e signal across CI
hardware. Both the mousemove-driven slider behavior and the clamp guard
are covered by unit tests in
`src/components/templates/thumbnails/CompareSliderThumbnail.test.ts` (8
cases, including out-of-range pointer coordinates and zero-width
containers).
2026-05-07 05:03:33 +00:00
2024-06-12 20:22:24 -04:00
2026-05-07 04:28:55 +00:00
2026-01-27 17:59:19 -08:00

ComfyUI_frontend

Official front-end implementation of ComfyUI.

Website Discord Matrix

Release Schedule

The project follows a structured release process for each minor version, consisting of three distinct phases:

  1. Development Phase - 2 weeks

    • Active development of new features
    • Code changes merged to the development branch
  2. Feature Freeze - 2 weeks

    • No new features accepted
    • Only bug fixes are cherry-picked to the release branch
    • Testing and stabilization of the codebase
  3. Publication

    • Release is published at the end of the freeze period
    • Version is finalized and made available to all users

Nightly Releases

Nightly releases are published daily at https://github.com/Comfy-Org/ComfyUI_frontend/releases.

To use the latest nightly release, add the following command line argument to your ComfyUI launch script:

--front-end-version Comfy-Org/ComfyUI_frontend@latest

Overlapping Release Cycles

The development of successive minor versions overlaps. For example, while version 1.1 is in feature freeze, development for version 1.2 begins simultaneously. Each feature has approximately 4 weeks from merge to ComfyUI stable release (2 weeks on main, 2 weeks frozen on RC).

Example Release Cycle

Week Date Range Version 1.1 Version 1.2 Version 1.3 Patch Releases
1-2 Mar 1-14 Development - - -
3-4 Mar 15-28 Feature Freeze Development - 1.1.0 through 1.1.13 (daily)
5-6 Mar 29-Apr 11 Released Feature Freeze Development 1.1.14+ (daily)
1.2.0 through 1.2.13 (daily)
7-8 Apr 12-25 - Released Feature Freeze 1.2.14+ (daily)
1.3.0 through 1.3.13 (daily)

Release Summary

Major features

v1.5: Native translation (i18n)

ComfyUI now includes built-in translation support, replacing the need for third-party translation extensions. Select your language in Comfy > Locale > Language to translate the interface into English, Chinese (Simplified), Russian, Japanese, Korean, or Arabic. This native implementation offers better performance, reliability, and maintainability compared to previous solutions.

More details available here: https://blog.comfy.org/p/native-localization-support-i18n

v1.4: New mask editor

https://github.com/Comfy-Org/ComfyUI_frontend/pull/1284 implements a new mask editor.

image

v1.3.22: Integrated server terminal

Press Ctrl + ` to toggle integrated terminal.

https://github.com/user-attachments/assets/eddedc6a-07a3-4a83-9475-63b3977f6d94

v1.3.7: Keybinding customization

Basic UI

image

Reset button

image

Edit Keybinding

image image

rec.webm

v1.2.4: Node library sidebar tab

Drag & Drop

https://github.com/user-attachments/assets/853e20b7-bc0e-49c9-bbce-a2ba7566f92f

Filter

https://github.com/user-attachments/assets/4bbca3ee-318f-4cf0-be32-a5a5541066cf

v1.2.0: Queue/History sidebar tab

https://github.com/user-attachments/assets/86e264fe-4d26-4f07-aa9a-83bdd2d02b8f

QoL changes

v1.3.32: **Litegraph** Nested group

https://github.com/user-attachments/assets/f51adeb1-028e-40af-81e4-0ac13075198a

v1.3.24: **Litegraph** Group selection

https://github.com/user-attachments/assets/e6230a94-411e-4fba-90cb-6c694200adaa

v1.3.4: **Litegraph** Auto widget to input conversion

Dropping a link of correct type on node widget will automatically convert the widget to input.

rec.webm

v1.3.4: **Litegraph** Canvas pan mode

The canvas becomes readonly in pan mode. Pan mode is activated by clicking the pan mode button on the canvas menu or by holding the space key.

rec.webm

v1.2.62: **Litegraph** Show optional input slots as donuts

GYEIRidb0AYGO-v

v1.2.44: **Litegraph** Double click group title to edit

https://github.com/user-attachments/assets/5bf0e2b6-8b3a-40a7-b44f-f0879e9ad26f

v1.2.39: **Litegraph** Group selected nodes with Ctrl + G

https://github.com/user-attachments/assets/7805dc54-0854-4a28-8bcd-4b007fa01151

v1.2.38: **Litegraph** Double click node title to edit

https://github.com/user-attachments/assets/d61d5d0e-f200-4153-b293-3e3f6a212b30

v1.1.8: **Litegraph** hides text overflow on widget value

https://github.com/user-attachments/assets/5696a89d-4a47-4fcc-9e8c-71e1264943f2

Developer APIs

v1.6.13: prompt/confirm/alert replacements for ComfyUI desktop

Several browser-only APIs are not available in ComfyUI desktop's electron environment.

  • window.prompt
  • window.confirm
  • window.alert

Please use the following APIs as replacements.

// window.prompt
window['app'].extensionManager.dialog
  .prompt({
    title: 'Test Prompt',
    message: 'Test Prompt Message'
  })
  .then((value: string) => {
    // Do something with the value user entered
  })

image

// window.confirm
window['app'].extensionManager.dialog
  .confirm({
    title: 'Test Confirm',
    message: 'Test Confirm Message'
  })
  .then((value: boolean) => {
    // Do something with the value user entered
  })

image

// window.alert
window['app'].extensionManager.toast.addAlert('Test Alert')

image

v1.3.34: Register about panel badges
app.registerExtension({
  name: 'TestExtension1',
  aboutPageBadges: [
    {
      label: 'Test Badge',
      url: 'https://example.com',
      icon: 'pi pi-box'
    }
  ]
})

image

v1.3.22: Register bottom panel tabs
app.registerExtension({
  name: 'TestExtension',
  bottomPanelTabs: [
    {
      id: 'TestTab',
      title: 'Test Tab',
      type: 'custom',
      render: (el) => {
        el.innerHTML = '<div>Custom tab</div>'
      }
    }
  ]
})

image

v1.3.22: New settings API

Legacy settings API.

// Register a new setting
app.ui.settings.addSetting({
  id: 'TestSetting',
  name: 'Test Setting',
  type: 'text',
  defaultValue: 'Hello, world!'
})

// Get the value of a setting
const value = app.ui.settings.getSettingValue('TestSetting')

// Set the value of a setting
app.ui.settings.setSettingValue('TestSetting', 'Hello, universe!')

New settings API.

// Register a new setting
app.registerExtension({
  name: 'TestExtension1',
  settings: [
    {
      id: 'TestSetting',
      name: 'Test Setting',
      type: 'text',
      defaultValue: 'Hello, world!'
    }
  ]
})

// Get the value of a setting
const value = app.extensionManager.setting.get('TestSetting')

// Set the value of a setting
app.extensionManager.setting.set('TestSetting', 'Hello, universe!')
v1.3.7: Register commands and keybindings

Extensions can call the following API to register commands and keybindings. Do note that keybindings defined in core cannot be overwritten, and some keybindings are reserved by the browser.

app.registerExtension({
  name: 'TestExtension1',
  commands: [
    {
      id: 'TestCommand',
      function: () => {
        alert('TestCommand')
      }
    }
  ],
  keybindings: [
    {
      combo: { key: 'k' },
      commandId: 'TestCommand'
    }
  ]
})
v1.3.1: Extension API to register custom topbar menu items

Extensions can call the following API to register custom topbar menu items.

app.registerExtension({
  name: 'TestExtension1',
  commands: [
    {
      id: 'foo-id',
      label: 'foo',
      function: () => {
        alert(1)
      }
    }
  ],
  menuCommands: [
    {
      path: ['ext', 'ext2'],
      commands: ['foo-id']
    }
  ]
})

image

v1.2.27: Extension API to add toast messagei

Extensions can call the following API to add toast messages.

app.extensionManager.toast.add({
  severity: 'info',
  summary: 'Loaded!',
  detail: 'Extension loaded!',
  life: 3000
})

Documentation of all supported options can be found here: https://primevue.org/toast/#api.toast.interfaces.ToastMessageOptions

image

v1.2.4: Extension API to register custom sidebar tab

Extensions now can call the following API to register a sidebar tab.

app.extensionManager.registerSidebarTab({
  id: 'search',
  icon: 'pi pi-search',
  title: 'search',
  tooltip: 'search',
  type: 'custom',
  render: (el) => {
    el.innerHTML = '<div>Custom search tab</div>'
  }
})

The list of supported icons can be found here: https://primevue.org/icons/#list

We will support custom icons later.

image

v1.10.9: Selection Toolbox API

Extensions can register commands that appear in the selection toolbox when specific items are selected on the canvas.

app.registerExtension({
  name: 'TestExtension1',
  commands: [
    {
      id: 'test.selection.command',
      label: 'Test Command',
      icon: 'pi pi-star',
      function: () => {
        // Command logic here
      }
    }
  ],
  // Return an array of command IDs to show in the selection toolbox
  // when an item is selected
  getSelectionToolboxCommands: (selectedItem) => ['test.selection.command']
})

The selection toolbox will display the command button when items are selected: Image

Contributing

We welcome contributions to ComfyUI Frontend! Please see our Contributing Guide for:

  • Ways to contribute (code, documentation, testing, community support)
  • Development setup and workflow
  • Code style guidelines
  • Testing requirements
  • How to submit pull requests
  • Backporting fixes to release branches

Development

For detailed development setup, testing procedures, and technical information, please refer to CONTRIBUTING.md.

i18n

See locales/README.md for details.

Storybook

See .storybook/README.md for component development and visual testing documentation.

Troubleshooting

For comprehensive troubleshooting and technical support, please refer to our official documentation:

Description
Official front-end implementation of ComfyUI
Readme GPL-3.0 975 MiB
Languages
TypeScript 82.9%
Vue 15.7%
CSS 0.4%
Astro 0.4%
Python 0.2%
Other 0.4%