Megathread for Missing Features

[adamjs]

This issue will keep track of various things missing in Ultralight that are present in Chrome/Firefox.

CSS

• CSS user-select property
• CSS Radial Gradients (just needs shader implementation)
• CSS Filter Effects (eg blur, hue, grayscale, contrast, etc.)
• CSS Backdrop Filter
• CSS Blurred Text Shadow (dependent on compositing blurs in shader)
• CSS Cursor Images
• CSS border-image-slice (renders but has glitches)

Native Inputs/Dialogs

• Native Input: Select Elements (native widget dropdowns)
• Native Input: Radio / Checkbox Elements (native widget drawing)
• Native Input: Progress Bars
• Native Input: Sliders (Range Element)
• Native Input: Date Selection
• Native Input: Color Selection
• Native Input: Local File Selection
• JavaScript Alerts/Dialogs

Web Features

• JavaScript Intl API / Localization
• WebSockets over SSL (WebSockets over HTTP work)
• WebAssembly
• WebGL (need to spawn offscreen EGL context or pipe into GPUDriver)
• WebRTC
• HTML5 Video / Audio suport

SVG/Canvas

• Line Joins / Line Caps in SVG/Canvas. Currently uses defaults (miter line join / butt line cap), need to add support for other options.
• CanvasRenderingContext2D.filter
• CanvasRenderingContext2D.imageSmoothingEnabled
• CanvasRenderingContext2D.imageSmoothingQuality

Platform-Specific

• Platform clipboard API (cut, copy, paste)
• Platform drag and drop (dragging to/from native window)
• Input Method Editor API (IME, used for Japanese, Korean, etc. input)

Miscellaneous

• Opening links with target="_blank" (need to add API for user to create new View)
• Animated GIF support (certain GIFs aren't rendering)

[PierBover]

You should probably add <video> to that list.

[adamjs]

Thanks, added ✅

[GrimTheReaper]

With markdown, instead of:

- Item

you should use

- [ ] Item

It gives you a checkbox that you can click to signify what is done, like:

• Not Done
• Done

[adamjs]

Thanks for the tip! Updated.

[alandefreitas]

It is possible to create a system tray icon for the application? Something like that. It's often useful for the user to close the window but to keep a deamon running in the background.

[talentlessguy]

What about adding dGPU support (NVIDIA for example)?

issue: #220

[gajus]

Is this being kept up to date?

[adamjs]

It's a bit out of date since most work the last two months has been in the 1.2 development branch (rebased off latest WebKit, changeset has 1M+ LOC). Going to push to public GitHub soon and update this thread.

[Tamirrrr]

Hey , how can i get a text value from a text input element.

[kapulkin]

Good day.
Is the list of features actual? I'am interested in WebRTC, is it not implemented yet?

[jonatino]

@adamjs can you add support for webp images to this list?

[jonatino]

@adamjs also if we can add support for icons for the windows

[farshed]

@adamjs any update on v1.2? when can we expect it to be out?

[alandefreitas]

Is supporting mobile devices still in the plans?

[SupinePandora43]

#254

[SupinePandora43]

window.onKeypress not work in Browser sample
example electron-app
source: #L40

[SupinePandora43]

[loeffel-io]

Gamepad API (!!)

[gtnardy]

looking forward for CSS Filters and HTML5 video and audio support!

[ryanerwin]

Looking forward to supporting media queries for dark mode, so that embedded Ultralight windows can toggle the light/dark mode automatically matching the Desktop OS Light/Dark mode setting.

For example: https://davy.dev/darkmode

This works with Epiphany (webkit) but not yet with Ultralight v1.2.0-beta.2.

UPDATE Nov 30th: Still doesn't appear to be present in the latest version of Ultralight v1.2.0

[antoineok]

hello, what about "loading webp image file" i got some errors with them

[SupinePandora43]

Chrome/Firefox Chromium

[wolfield]

Please add #185 to the list. Chrome/Firefox had subpixel rendering since the beginning.

[MohammadMD1383]

some css flex properties are not supported like gap, etc...
#368

[HarryZalessky]

Is this list kept updated? video and audio support had been added... And what about WebRTC?? When is it coming?? I NEED IT!

[SupinePandora43]

Is this list kept updated? video and audio support had been added... And what about WebRTC?? When is it coming?? I NEED IT!

It's not exactly done yet. 1.3 stable isn't released

[dzcpy]

Is this list kept updated? video and audio support had been added... And what about WebRTC?? When is it coming?? I NEED IT!

Have video and audio been added?

[SupinePandora43]

Is this list kept updated? video and audio support had been added... And what about WebRTC?? When is it coming?? I NEED IT!

Have video and audio been added?

In latest sdk yes

[SupinePandora43]

YouTube says that fullscreen mode isn't supported

[dzcpy]

Is this project still actively developed / maintained?

[SupinePandora43]

Is this project still actively developed / maintained?

Yes. 1.3.0 is currently in beta and adds audio/video support + more other features

[dzcpy]

Is there any estimation about when these features will be implemented? It's been too long.

[barnabwhy]

Any plans to add a way of disabling web security? Some things like vue just don't like file:// and complain about cors

[p0358]

#include <Ultralight/MouseEvent.h>

  ///
  /// The various mouse button types.
  ///
  enum Button {
    kButton_None = 0,
    kButton_Left,
    kButton_Middle,
    kButton_Right,
  };

No support for mouse side buttons (forward/back), and they are supposed to work. See sample here (press forward on the "Result" live sample): https://developer.mozilla.org/en-US/docs/Web/API/MouseEvent/buttons

So I cannot even catch them in WndProc and send to the view... (with WM_XBUTTONDOWN: https://stackoverflow.com/questions/67683479/process-mouse-back-and-forward-buttons-in-winforms-form-when-its-client-area-is)

[Kukulkano]

You might want to add IndexedDB and local storage support to that list (maybe include setting a dedicated storage path).

[augustpemberton]

MouseEvents don't seem to contain the movementX or movementY properties:

https://developer.mozilla.org/en-US/docs/Web/API/MouseEvent/movementX
https://developer.mozilla.org/en-US/docs/Web/API/MouseEvent/movementY

[Steven-L-42]

how is it still 5 years later a problem to set a cursor to none or set it to custom in UL?