Feature request: Add option to only unblank on lock shortcut (Super+L etc), NOT on timeout/screensaver

[blipk]

I implemented this from another extension no-screen-blank@example.com here:

const ScreenShield = imports.ui.screenShield;
const Main = imports.ui.main;
const Me = imports.misc.extensionUtils.getCurrentExtension();

let extensionActive = false;
let orig_activateFade = ScreenShield.ScreenShield.prototype._activateFade;
let orig_completeLockScreenShown = ScreenShield.ScreenShield.prototype._completeLockScreenShown;

// don't fade in a full screen black box which would obscure the view
function noFade_activateFade (lightbox, time) {
    if (!Me.keyboardSource)
        orig_activateFade.call(this, lightbox, time);
    Me.keyboardSource = false;
};

// basically a copy of the original method without the emission of the
// "active-changed" signal which would cause gnome-settings-daemon to
// blank the screen
function noFade_completeLockScreenShown () {
    if (!Me.keyboardSource) return orig_completeLockScreenShown.call(this);
    
    this._isActive = true;

    if (this._aboutToSuspend)
        this._uninhibitSuspend();

    Main.screenShield.emit('lock-screen-shown');
}

function init() {
}

function enable() {
    if (!extensionActive) {
        extensionActive = true;
        Me.keyboardSource = false;
        ScreenShield.ScreenShield.prototype._activateFade = noFade_activateFade;
        ScreenShield.ScreenShield.prototype._completeLockScreenShown = noFade_completeLockScreenShown;

        let [res, out] = imports.gi.GLib.spawn_command_line_sync("gsettings get org.gnome.settings-daemon.plugins.media-keys screensaver");
        let strout = imports.byteArray.toString(out).replace(/'/g,'"')
        let lockKeys = JSON.parse(strout);
        let action = global.display.grab_accelerator(lockKeys[0], imports.gi.Meta.KeyBindingFlags.NONE);
        let name = imports.gi.Meta.external_binding_name_for_action(action)
        Main.wm.allowKeybinding(name, imports.gi.Shell.ActionMode.ALL);
        this.lockActionKey = action;
        
        global.display.connect('accelerator-activated', (display, actionId, deviceId, timestamp) => {
            if (actionId == action) {
                Me.keyboardSource = true;
                Main.screenShield.lock(true);
            }
        });
    }
}

function disable() {
    // Only allow disabling the extension when in 'user' mode (i.e. manually),
    // but not in lock-screen mode.
    if (extensionActive && Main.sessionMode.currentMode == 'user') {
        extensionActive = false;
        ScreenShield.ScreenShield.prototype._activateFade = orig_activateFade;
        ScreenShield.ScreenShield.prototype._completeLockScreenShown = orig_completeLockScreenShown;
    }
}

I attempted to with unblank but seeing as it has a lot more function overrides I ran into a problem that it seems some signal wasn't emitting and the lock screen doesn't redisplay on user action, just the block out. Here is what I tried:
Unblank.zip