File opened in multiple tabs

[RichardFevrier]

Hi everyone 👋

Probably a skill issue but I can't find a way to prevent a file to be opened multiple times in different tabs and switch to the tab instead.

Thank you.

[dmaluka]

You can implement a custom command in lua for that. Add e.g. something like this to your init.lua:

local micro = import("micro")
local config = import("micro/config")
local filepath = import("filepath")

function switchCmd(bp, args)
    if #args < 1 then
        return
    end
    local abspath = filepath.Abs(args[1])
    local tabs = micro.Tabs()
    if tabs ~= nil then
        for i, t in tabs.List() do
            for j, p in t.Panes() do
                if p.Buf.Path ~= "" and p.Buf.AbsPath == abspath then
                    tabs:SetActive(i-1)
                    t:SetActive(j-1)
                    return
                end
            end
        end
    end
    bp:NewTabCmd(args)
end

function init()
    config.MakeCommand("switch", switchCmd, config.FileComplete)
end

[RichardFevrier]

Thanks for your smart answer 🙏

Unfortunately doing so you don't change the behavior of NewTabCmd (applies probably to OpenCmd too) meanings that any other call, from plugins for ex. will not beneficiate this functionality.

And that's specifically my case now, I've done a plugin last week that you can find here (pull requeted in the plugin-channel (let me dream 😅)) to integrate Yazi with Micro.

[Andriamanitra]

@RichardFevrier maybe you could use preOpenFile Lua callback?

[RichardFevrier]

Can't make it work with NewTabCmd from a plugin. With binded action no problem otherwise. Can you @Andriamanitra ?

[Andriamanitra]

I think BufPane.NewTabCmd method does not trigger OpenFile action because it creates a buffer directly (a bug?) but there is also AddTab action that you could hook into. Or you could add a check in your plugin before calling bp:NewTabCmd.

[RichardFevrier]

Sorry I didn't mention yesterday that I tried AddTab, OpenTab and so on.. without success.

IMO the last option is a big no, because the idea is to not ask every plugins developer to implement such check, it as to be backed into micro.

But your initial idea of using a callback was cleaver, it just doesn't work in this case (maybe I did implement it wrong,
totally possible).