`glfwGetCocoaKeyEquivalent()` in `glfw/cocoa_window.m` expects the returned characters to be of type `unichar`, which won't work for all unicode characters because it is defined as `unsigned short` according to https://developer.apple.com/documentation/foundation/unichar?language=objc, which is only guaranteed to be at least 16 bits in size. The code calling this function also expects the encoding to be UTF-16.
When I added the various keys in https://github.com/kovidgoyal/kitty/pull/1928, I missed these facts. This means, that `glfwGetCocoaKeyEquivalent()` will behave unexpectedly when called with any of the new-ish keys. Luckily this function is currently only used for determining the macOS shortcut for `new_os_window` but I plan on using it more in the future.
Some of the constants, e.g. `NSBackspaceCharacter` are UTF-16 constants, so we can't just use UTF-8 everywhere.
I fixed the problem by using either UTF-8 characters packed into a `uint32_t` or UTF-16 characters in a `unichar` and then converting them to a UTF-8 encoded char string.
`NSEventModifierFlagNumericPad` isn't guaranteed to fit in a `unichar`, which made this undefined behaviour. It also didn't work. I tried to make it work using `NSEventModifierFlagNumericPad` as a modifier instead, as can be seen in this commit, but couldn't get it to work either because the constants used are native key codes and not unicode characters. Therefore the numpad keys will be removed in the next commit.
From upstream: 9486ec0c02.
The upstream commit mainly changes some cmake stuff, which we don't use and only really adds curly braces to `egl_context.c` (and changes some formatting).
This piece of code is not run when the `GLFW_COCOA_MENUBAR` init hint is set to `0`, which kitty does.
This reduces the difference to GLFW upstream a little.
GLFW creates the menu bar in the applicationWillFinishLaunching method, while kitty creates it in `create_os_window()`. This patch changes the behaviour to match GLFW.
In practice, without this change, there can be a short time where the menu bar is not fully populated.
This is needed because on creation the window may not have been assigned
to any monitors, so we fallback to using the scale of the primary
monitor. Fixes#2133. Fixes#2135
In 841c907efc643a4f4f06b2686d0d1e6022710600, the `%m` format specifier was replaced by `%%m`, which just prints `%m`. To keep the functionality of `%m` without using `%m`, the error string can be printed manually.
