Tracking

[2e0byo]

This fork is currently far from ready, but working locally.

Known bugs:

• [x] Resize handler is not called promptly on window resize. Indeed I can't figure out what listens to resized event at all. We probably need to register a handler. The result is that Emacs becomes unresponsive after a resize for 0 <= t < \infinity. Forcing an internal redisplay by e.g. M-x (loads helm) and then sending another resize event (resizing the window twice) tends to work. [fixed with new rendering logic]
• [ ] Overlay windows aren't displayed properly, so they tile. They're also useless until scaled properly. This makes lsp-lens annoying, although I still use it by manually resizing the lens window and waiting for it to behave itself
• [ ] Segfaults on message-box. (Probably a problem in upstream, but def. to fix.)
• [ ] Unable to load fonts from elisp/at runtime.
• [x] Lsp right-margin text wraps onto new line. I think upgrading emacs itself will fix this. [fixed: probably due to scaling]
• [x] Something byte-compiled causes periodic errors. Again, I think a problem with emacs. [gone]
• [ ] The xpm hack works, but for some reason doesn't resize images. Should they be scaled like fonts? But others work fine.
• [ ] Occasional segfault which I've not tracked down (need to build emacs with debugging I think).
• [x] Automatic composite glyphs not implemented yet---we just return none rather than crashing. [Work started] [fixed upstream]
• [ ] Some of the panic()s are reachable. Slowly removing them. - [ ] No menu bars (true in emacs-ng in general). I don't use them, but. [problem with window toolkit]
• [x] LSP breadcrumbs display same size as rest of buffer. I actually quite like this and am not sure if it's a bug, but def. wasn't the case with native emacs before. [fixed with new scaling code]
• [x] Not all input works correctly. Number-pad enter sends m not ^m. [Easy to debug---just print the keyboard events] [fixed]

[2e0byo]

Resize events are properly listened to (dispatched in event_loop.rs and picked up in wrterm.rs). The mutex isn't blocking. Adding multiple resizes doesn't fix anything.

• it is always possible to retrieve the window by switching to floating and making it much smaller
• small resizes work much better than large
• when the resize works the display briefly flickers => emacs is redrawing everything.

Therefore the error is somewhere within emacs, and we need to manually force a full frame redraw on resize for now.

[2e0byo]

Segfaults are caused by the garbage collector trying to mark objects it shouldn't. Why? Why does it think the object is there at all?