Housing v14.7.8 - InsetsObserverProxy.java 源代码

package com.swmansion.rnscreens;

import android.view.View;
import androidx.core.view.ViewCompat;
import androidx.core.view.WindowInsetsCompat;
import androidx.core.view.t;
import com.facebook.react.bridge.LifecycleEventListener;
import com.facebook.react.bridge.ReactApplicationContext;
import com.newrelic.agent.android.instrumentation.Instrumented;
import com.newrelic.agent.android.instrumentation.LogInstrumentation;
import java.lang.ref.WeakReference;
import java.util.ArrayList;
import java.util.Iterator;
import kotlin.Metadata;
import kotlin.jvm.internal.SourceDebugExtension;
import kotlin.jvm.internal.r;
import org.jetbrains.annotations.NotNull;

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@Instrumented
@SourceDebugExtension({"SMAP\nInsetsObserverProxy.kt\nKotlin\n*S Kotlin\n*F\n+ 1 InsetsObserverProxy.kt\ncom/swmansion/rnscreens/InsetsObserverProxy\n+ 2 _Collections.kt\nkotlin/collections/CollectionsKt___CollectionsKt\n+ 3 fake.kt\nkotlin/jvm/internal/FakeKt\n*L\n1#1,105:1\n1863#2,2:106\n1#3:108\n*S KotlinDebug\n*F\n+ 1 InsetsObserverProxy.kt\ncom/swmansion/rnscreens/InsetsObserverProxy\n*L\n42#1:106,2\n*E\n"})
public final class InsetsObserverProxy implements t, LifecycleEventListener {
    private static boolean hasBeenRegistered;
    private static boolean isObservingContextLifetime;

    @NotNull
    public static final InsetsObserverProxy INSTANCE = new InsetsObserverProxy();

    @NotNull
    private static final ArrayList<t> listeners = new ArrayList<>();

    @NotNull
    private static WeakReference<View> eventSourceView = new WeakReference<>(null);
    private static boolean shouldForwardInsetsToView = true;

    private InsetsObserverProxy() {
    }

    private final boolean getAllowRegistration() {
        return !hasBeenRegistered || eventSourceView.get() == null;
    }

    private final View getObservedView() {
        return eventSourceView.get();
    }

    public final void addOnApplyWindowInsetsListener(@NotNull t listener) {
        r.k(listener, "listener");
        listeners.add(listener);
    }

    @NotNull
    public WindowInsetsCompat onApplyWindowInsets(@NotNull View v, @NotNull WindowInsetsCompat insets) {
        r.k(v, "v");
        r.k(insets, "insets");
        WindowInsetsCompat u = shouldForwardInsetsToView ? ViewCompat.u(v, insets) : insets;
        r.h(u);
        Iterator<T> it = listeners.iterator();
        while (it.hasNext()) {
            u = ((t) it.next()).onApplyWindowInsets(v, insets);
        }
        return u;
    }

    public void onHostDestroy() {
        View observedView = getObservedView();
        if (hasBeenRegistered && observedView != null) {
            ViewCompat.I(observedView, (t) null);
            hasBeenRegistered = false;
            eventSourceView.clear();
        }
        isObservingContextLifetime = false;
    }

    public void onHostPause() {
    }

    public void onHostResume() {
    }

    public final boolean registerOnView(@NotNull View view) {
        r.k(view, "view");
        if (!getAllowRegistration()) {
            return false;
        }
        ViewCompat.I(view, this);
        eventSourceView = new WeakReference<>(view);
        hasBeenRegistered = true;
        return true;
    }

    public final void registerWithContext(@NotNull ReactApplicationContext context) {
        r.k(context, "context");
        if (isObservingContextLifetime) {
            LogInstrumentation.w("[RNScreens]", "InsetObserverProxy registers on new context while it has not been invalidated on the old one. Please report this as issue at https://github.com/software-mansion/react-native-screens/issues");
        }
        isObservingContextLifetime = true;
        context.addLifecycleEventListener(this);
    }

    public final void removeOnApplyWindowInsetsListener(@NotNull t listener) {
        r.k(listener, "listener");
        listeners.remove(listener);
    }

    public final void unregister() {
        View observedView = getObservedView();
        if (observedView != null) {
            if (!hasBeenRegistered) {
                observedView = null;
            }
            if (observedView != null) {
                ViewCompat.I(observedView, (t) null);
            }
        }
    }
}