[jwilson] this is a backwards-compatibility shim. Emit a simpler event.

[github-actions]

redwood/redwood-treehouse-host/src/commonTest/kotlin/app/cash/redwood/treehouse/FakeTreehouseView.kt

Line 85 in 12420a5

// TODO(jwilson): this is a backwards-compatibility shim. Emit a simpler event.

  override val savedStateRegistry: SavedStateRegistry? = null

  override fun contentState(loadCount: Int, attached: Boolean, uncaughtException: Throwable?) {
    // Remove all child views in case the previous content state left some behind.
    if (attached) children.views.clear()

    // Canonicalize "java.lang.Exception(boom!)" to "kotlin.Exception(boom!)".
    val exceptionString = uncaughtException?.toString()?.replace("java.lang.", "kotlin.")

    // TODO(jwilson): this is a backwards-compatibility shim. Emit a simpler event.
    eventLog += when {
      loadCount == 0 && !attached -> "codeListener.onInitialCodeLoading()"
      attached -> "codeListener.onCodeLoaded($loadCount)"
      else -> "codeListener.onCodeDetached($exceptionString)"
    }
  }

  override fun restart(restart: (() -> Unit)?) {
  }

  override fun toString() = name

  internal class FakeChildren(
    private val childrenDelegate: MutableListChildren<WidgetValue> = MutableListChildren(),
  ) : Widget.Children<WidgetValue> by childrenDelegate {
    /** A private copy of the child views that isn't cleared by `detach()`. */
    val views = mutableListOf<WidgetValue>()

    override fun insert(index: Int, widget: Widget<WidgetValue>) {
      views.add(index, widget.value)
      childrenDelegate.insert(index, widget)
    }

    override fun remove(index: Int, count: Int) {
      views.subList(index, index + count).clear()
      childrenDelegate.remove(index, count)
    }
  }
}