# `MishkaGervaz.Form.Web.Events.StepHandler`
[🔗](https://github.com/mishka-group/mishka_gervaz/blob/v0.0.1-alpha.4/lib/mishka_gervaz/form/web/events/step_handler.ex#L1)

Handles wizard step navigation events.

## Overridable Functions

- `can_advance?/2` - Check if user can move to next step
- `advance/2` - Move to the next step
- `go_back/1` - Move to the previous step
- `goto_step/2` - Jump to a specific step (tabs mode)

## User Override

    defmodule MyApp.Form.StepHandler do
      use MishkaGervaz.Form.Web.Events.StepHandler

      def can_advance?(state, current_step) do
        # Custom step validation
        super(state, current_step)
      end
    end

Top-level helpers `find_next_step/2`, `find_prev_step/2`,
`step_exists?/2` are public so user overrides can reuse them.

See `MishkaGervaz.Form.Web.Events`,
`MishkaGervaz.Form.Web.State` (for `:current_step`, `:step_states`,
`:wizard_history`), and the sibling sub-handlers.

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*Consult [api-reference.md](api-reference.md) for complete listing*