Always Center

[rawkode]

The more I use PaperWM, the more I play around with certain applications behind slightly different widths.

It would be really beneficial if there was an option to always center on the active window

[rawkode]

#150 might be close enough to this

CC @olejorgenb

[hedning]

You can get something like this by turning up the horizontal margin (eg. to 1/2 the screen). It won't center the first and last window though, and the preference gui still has a bug which limits you to max 100px so you'll have to use eg. dconf-editor to set it higher.

Auto centering would absolutely be nice, especially on wide screens.

I guess there's a few options here:

• add a «mode» that can be toggled
• let windows inherit centering, ie. if the previous window was centered, center the new one. That might be workable as a default.

For a quick local fix this should work in user.js (and similarly for Space.switchLeft/Right):

    let orgSwitch = Tiling.Space.prototype.switchLinear;
    Tiling.Space.prototype.switchLinear = function (dir) {
        orgSwitch.call(this, dir);
        Tiling.centerWindowHorizontally(this.selectedWindow);
    }

[todiadiyatmo]

@hedning

how to properly paste the code in user.js ? inside enable function or outside ?

[olejorgenb]

The fix hedning suggested should go in the init function. (otherwise a new override layer would be added each time the screen was unlocked)

[rien7]

can you descript it on details? it dooesn't work for me @olejorgenb

[olejorgenb]

The init function in ".config/paperwm/user.js" should look like this: (you need to restart gnome shell after making the change)

function init() {
    // Runs _only_ once on startup

    // Initialize extension imports here to make gnome-shell-reload work
    Extension = imports.misc.extensionUtils.getCurrentExtension();
    Me = Extension.imports.user;
    Tiling = Extension.imports.tiling;
    Utils = Extension.imports.utils;
    Keybindings = Extension.imports.keybindings;
    Examples = Extension.imports.examples;
    App = Extension.imports.app;

    let orgSwitch = Tiling.Space.prototype.switchLinear;
    Tiling.Space.prototype.switchLinear = function (dir) {
        orgSwitch.call(this, dir);
        Tiling.centerWindowHorizontally(this.selectedWindow);
    }
}

Note: didn't actually test it myself though :) Note: it will only work for the linear keybindings (<Super>,/<Super>.) You need to add similar wrappers for the left/right actions.

[jtaala]

#482 does this. Well, it adds a persistent sticky centering mode (can set it at a workspace level). Just collecting feedback for this atm - after that (if no showstoppers) I'll merge it in.