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docs(faq): clarify Vim mode handling and improve prompt rendering

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Updated the Fish section of the FAQ to address issues with Vim mode display:
1. Moved the export of `$fish_bind_mode` to `FISH__BIND_MODE` within the `rerender_on_bind_mode_change` function, as `set_poshcontext` had no effect.
2. Added instructions to mask the `fish_default_mode_prompt` function to prevent it from echoing the mode before Oh My Posh renders the prompt, ensuring a cleaner prompt display.
This commit is contained in:
devxpain 2024-10-11 19:30:32 +08:00 committed by Jan De Dobbeleer
parent 9fbc61561d
commit 970dad757c
1 changed files with 7 additions and 6 deletions
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website/docs/faq.mdx
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@ -278,22 +278,23 @@ This is most likely caused by two Oh My Posh init lines in your `.zshrc`, remove
### Fish: Display current bind (Vim) mode
By default, Oh My Posh will not re-render the prompt (i.e., generate a new prompt) until a new command is run, so you should
call the `omp_repaint_prompt` function to do prompt re-rendering whenever `$fish_bind_mode` changes:
export `$fish_bind_mode` to `FISH__BIND_MODE` and call the `omp_repaint_prompt` function to do prompt re-rendering when
`$fish_bind_mode` changes:
```fish
function rerender_on_bind_mode_change --on-variable fish_bind_mode
if test "$fish_bind_mode" != paste
if test "$fish_bind_mode" != paste -a "$fish_bind_mode" != "$FISH__BIND_MODE"
set -gx FISH__BIND_MODE $fish_bind_mode
omp_repaint_prompt
end
end
```
Then export the current bind mode in the `set_poshcontext` function. Note that scope shadowing must be disabled in order to
access the `$fish_bind_mode` variable.
Next, mask the `fish_default_mode_prompt` function to prevent it from echoing the current mode:
```fish
function set_poshcontext --no-scope-shadowing
set --export FISH__BIND_MODE $fish_bind_mode
function fish_default_mode_prompt --description "Display vi prompt mode"
# This function is masked and does nothing
end
```