91 lines
3.7 KiB
Java
91 lines
3.7 KiB
Java
package androidx.appcompat.widget;
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import android.content.Context;
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import android.content.ContextWrapper;
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import android.content.res.AssetManager;
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import android.content.res.Resources;
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import androidx.annotation.NonNull;
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import androidx.annotation.RestrictTo;
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import java.lang.ref.WeakReference;
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import java.util.ArrayList;
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@RestrictTo({RestrictTo.Scope.LIBRARY_GROUP_PREFIX})
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public class TintContextWrapper extends ContextWrapper {
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private static final Object CACHE_LOCK = new Object();
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private static ArrayList<WeakReference<TintContextWrapper>> sCache;
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private final Resources mResources;
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private final Resources.Theme mTheme;
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private TintContextWrapper(@NonNull Context context) {
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super(context);
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if (VectorEnabledTintResources.shouldBeUsed()) {
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VectorEnabledTintResources vectorEnabledTintResources = new VectorEnabledTintResources(this, context.getResources());
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this.mResources = vectorEnabledTintResources;
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Resources.Theme newTheme = vectorEnabledTintResources.newTheme();
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this.mTheme = newTheme;
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newTheme.setTo(context.getTheme());
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return;
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}
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this.mResources = new TintResources(this, context.getResources());
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this.mTheme = null;
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}
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private static boolean shouldWrap(@NonNull Context context) {
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return !(context instanceof TintContextWrapper) && !(context.getResources() instanceof TintResources) && !(context.getResources() instanceof VectorEnabledTintResources) && VectorEnabledTintResources.shouldBeUsed();
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}
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public static Context wrap(@NonNull Context context) {
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if (!shouldWrap(context)) {
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return context;
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}
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synchronized (CACHE_LOCK) {
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ArrayList<WeakReference<TintContextWrapper>> arrayList = sCache;
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if (arrayList == null) {
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sCache = new ArrayList<>();
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} else {
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for (int size = arrayList.size() - 1; size >= 0; size--) {
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WeakReference<TintContextWrapper> weakReference = sCache.get(size);
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if (weakReference == null || weakReference.get() == null) {
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sCache.remove(size);
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}
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}
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for (int size2 = sCache.size() - 1; size2 >= 0; size2--) {
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WeakReference<TintContextWrapper> weakReference2 = sCache.get(size2);
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TintContextWrapper tintContextWrapper = weakReference2 != null ? weakReference2.get() : null;
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if (tintContextWrapper != null && tintContextWrapper.getBaseContext() == context) {
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return tintContextWrapper;
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}
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}
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}
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TintContextWrapper tintContextWrapper2 = new TintContextWrapper(context);
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sCache.add(new WeakReference<>(tintContextWrapper2));
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return tintContextWrapper2;
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}
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}
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@Override // android.content.ContextWrapper, android.content.Context
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public AssetManager getAssets() {
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return this.mResources.getAssets();
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}
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@Override // android.content.ContextWrapper, android.content.Context
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public Resources getResources() {
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return this.mResources;
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}
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@Override // android.content.ContextWrapper, android.content.Context
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public Resources.Theme getTheme() {
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Resources.Theme theme = this.mTheme;
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return theme == null ? super.getTheme() : theme;
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}
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@Override // android.content.ContextWrapper, android.content.Context
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public void setTheme(int i) {
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Resources.Theme theme = this.mTheme;
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if (theme == null) {
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super.setTheme(i);
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} else {
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theme.applyStyle(i, true);
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}
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}
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}
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