class Opal::UI::ScreenStack

• Opal::UI::ScreenStack
• Reference
• Object

Overview

Screen stack orchestrator inspired by Python Textual's Screen Stack. Manages navigation flow, modal dialog layering, backdrop dimming, and dismissal callbacks.

Defined in:

opal/asciicast.cr
opal/ui/screen_stack.cr

Constructors

• .new(initial_screen : Screen | Nil = nil)

Instance Method Summary

• #active_screen : Screen | Nil

  Returns the currently focused top-of-stack screen

• #empty? : Bool
• #handle_key(event : Terminal::KeyEvent) : Bool
• #handle_mouse(event : Terminal::MouseEvent) : Bool
• #pop_screen : Screen | Nil

  Pops and unmounts the active screen

• #push_screen(screen : Screen, &callback : ModalResult -> Nil) : Screen

  Pushes a new screen onto the stack with optional dismissal callback

• #push_screen(screen : Screen) : Screen

  Pushes a screen without a dismissal block

• #record_cast(output_path : String, width : Int32 = 80, height : Int32 = 24, title : String = "Opal Session", &block : Asciicast::ScreenRecorder -> Nil) : Nil
• #render(buffer : Buffer, x : Int32 = 0, y : Int32 = 0, width : Int32 = buffer.width, height : Int32 = buffer.height) : Nil

  Renders the screen stack with automatic modal backdrop compositing

• #size : Int32
• #stack : Array(Screen)
• #switch_screen(screen : Screen) : Screen

  Replaces entire stack or top screen with a new screen

Constructor Detail

Instance Method Detail