feat.airapp sdk

LanMountainDesktop.AirAppSdk/AirAppWidgetBase.cs

@@ -0,0 +1,80 @@
+using Avalonia.Controls;
+
+namespace LanMountainDesktop.AirAppSdk;
+
+/// <summary>
+/// Base class for AirApp desktop component widgets.
+/// Inherit from this to create custom desktop components.
+/// </summary>
+public abstract class AirAppWidgetBase : UserControl, IAirAppWidget
+{
+    private IAirAppComponentContext? _context;
+
+    /// <summary>
+    /// Gets or sets the component context.
+    /// </summary>
+    public IAirAppComponentContext Context
+    {
+        get => _context ?? throw new InvalidOperationException("Context has not been set yet.");
+        set
+        {
+            _context = value;
+            OnContextSet();
+        }
+    }
+
+    /// <summary>
+    /// Called when the context is first set.
+    /// Override this to initialize based on context.
+    /// </summary>
+    protected virtual void OnContextSet()
+    {
+    }
+
+    /// <summary>
+    /// Called when the widget is attached to the desktop.
+    /// </summary>
+    public void OnAttached()
+    {
+        OnAttachedCore();
+    }
+
+    /// <summary>
+    /// Called when the widget is detached from the desktop.
+    /// </summary>
+    public void OnDetached()
+    {
+        OnDetachedCore();
+    }
+
+    /// <summary>
+    /// Called when the appearance has changed.
+    /// </summary>
+    /// <param name="snapshot">New appearance snapshot</param>
+    public void OnAppearanceChanged(AirAppAppearanceSnapshot snapshot)
+    {
+        OnAppearanceChangedCore(snapshot);
+    }
+
+    /// <summary>
+    /// Override this to handle widget attachment.
+    /// </summary>
+    protected virtual void OnAttachedCore()
+    {
+    }
+
+    /// <summary>
+    /// Override this to handle widget detachment.
+    /// </summary>
+    protected virtual void OnDetachedCore()
+    {
+    }
+
+    /// <summary>
+    /// Override this to handle appearance changes.
+    /// </summary>
+    /// <param name="snapshot">New appearance snapshot</param>
+    protected virtual void OnAppearanceChangedCore(AirAppAppearanceSnapshot snapshot)
+    {
+    }
+}