69 lines
2.2 KiB
Java
69 lines
2.2 KiB
Java
package androidx.appcompat.app;
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import android.util.AttributeSet;
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import java.lang.ref.WeakReference;
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import java.util.ArrayDeque;
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import java.util.Deque;
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import org.xmlpull.v1.XmlPullParser;
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import org.xmlpull.v1.XmlPullParserException;
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/* loaded from: classes.dex */
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class LayoutIncludeDetector {
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private final Deque<WeakReference<XmlPullParser>> mXmlParserStack = new ArrayDeque();
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LayoutIncludeDetector() {
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}
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boolean detect(AttributeSet attributeSet) {
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if (!(attributeSet instanceof XmlPullParser)) {
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return false;
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}
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XmlPullParser xmlPullParser = (XmlPullParser) attributeSet;
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if (xmlPullParser.getDepth() != 1) {
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return false;
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}
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XmlPullParser popOutdatedAttrHolders = popOutdatedAttrHolders(this.mXmlParserStack);
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this.mXmlParserStack.push(new WeakReference<>(xmlPullParser));
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return shouldInheritContext(xmlPullParser, popOutdatedAttrHolders);
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}
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private static boolean shouldInheritContext(XmlPullParser xmlPullParser, XmlPullParser xmlPullParser2) {
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if (xmlPullParser2 == null || xmlPullParser == xmlPullParser2) {
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return false;
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}
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try {
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if (xmlPullParser2.getEventType() == 2) {
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return "include".equals(xmlPullParser2.getName());
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}
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return false;
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} catch (XmlPullParserException unused) {
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return false;
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}
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}
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private static XmlPullParser popOutdatedAttrHolders(Deque<WeakReference<XmlPullParser>> deque) {
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while (!deque.isEmpty()) {
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XmlPullParser xmlPullParser = deque.peek().get();
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if (!isParserOutdated(xmlPullParser)) {
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return xmlPullParser;
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}
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deque.pop();
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}
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return null;
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}
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private static boolean isParserOutdated(XmlPullParser xmlPullParser) {
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if (xmlPullParser == null) {
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return true;
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}
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try {
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if (xmlPullParser.getEventType() != 3) {
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return xmlPullParser.getEventType() == 1;
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}
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return true;
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} catch (XmlPullParserException unused) {
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return true;
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}
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}
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}
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