content: package com.kuro.whale.xposed.callbacks;
  
  import android.os.Bundle;
  
  import java.io.Serializable;
  
  
  /**
   * Base class for Xposed callbacks.
   * <p>
   * This class only keeps a priority for ordering multiple callbacks.
   * The actual (abstract) callback methods are added by subclasses.
   */
  @SuppressWarnings("all")
  public abstract class XCallback implements Comparable<XCallback> {
      /**
       * Callback priority, higher number means earlier execution.
       * <p>
       * <p>This is usually set to {@link #PRIORITY_DEFAULT}. However, in case a certain callback should
       * be executed earlier or later a value between {@link #PRIORITY_HIGHEST} and {@link #PRIORITY_LOWEST}
       * can be set instead. The values are just for orientation though, Xposed doesn't enforce any
       * boundaries on the priority values.
       */
      public final int priority;
  
      /**
       * This constructor can't be hidden for technical reasons. Nevertheless, don't use it!
       */
      public XCallback() {
          this.priority = PRIORITY_DEFAULT;
      }
  
      /**
       * @hide
       */
      public XCallback(int priority) {
          this.priority = priority;
      }
  
      /**
       * Base class for Xposed callback parameters.
       */
      public static abstract class Param {
          /**
           * @hide
           */
          public final Object[] callbacks;
          private Bundle extra;
  
          /**
           * This constructor can't be hidden for technical reasons. Nevertheless, don't use it!
           */
          protected Param() {
              callbacks = null;
          }
  
          /**
           * This can be used to store any data for the scope of the callback.
           * <p>
           * <p>Use this instead of instance variables, as it has a clear reference to e.g. each
           * separate call to a method, even when the same method is called recursively.
           *
           * @see #setObjectExtra
           * @see #getObjectExtra
           */
          public synchronized Bundle getExtra() {
              if (extra == null)
                  extra = new Bundle();
              return extra;
          }
  
          /**
           * Returns an object stored with {@link #setObjectExtra}.
           */
          public Object getObjectExtra(String key) {
              Serializable o = getExtra().getSerializable(key);
              if (o instanceof SerializeWrapper)
                  return ((SerializeWrapper) o).object;
              return null;
          }
  
          /**
           * Stores any object for the scope of the callback. For data types that support it, use
           * the {@link Bundle} returned by {@link #getExtra} instead.
           */
          public void setObjectExtra(String key, Object o) {
              getExtra().putSerializable(key, new SerializeWrapper(o));
          }
  
          private static class SerializeWrapper implements Serializable {
              private static final long serialVersionUID = 1L;
              private final Object object;
  
              public SerializeWrapper(Object o) {
                  object = o;
              }
          }
      }
  
      /**
       * @hide
       */
      public static void callAll(Param param) {
          if (param.callbacks == null)
              throw new IllegalStateException("This object was not created for use with callAll");
  
          for (int i = 0; i < param.callbacks.length; i++) {
              try {
                  ((XCallback) param.callbacks[i]).call(param);
              } catch (Throwable t) {
                  //XposedBridge.log(t);
              }
          }
      }
  
      /**
       * @hide
       */
      protected void call(Param param) throws Throwable {
      }
  
      /**
       * @hide
       */
      @Override
      public int compareTo(XCallback other) {
          if (this == other)
              return 0;
  
          // order descending by priority
          if (other.priority != this.priority)
              return other.priority - this.priority;
              // then randomly
          else if (System.identityHashCode(this) < System.identityHashCode(other))
              return -1;
          else
              return 1;
      }
  
      /**
       * The default priority, see {@link #priority}.
       */
      public static final int PRIORITY_DEFAULT = 50;
  
      /**
       * Execute this callback late, see {@link #priority}.
       */
      public static final int PRIORITY_LOWEST = -10000;
  
      /**
       * Execute this callback early, see {@link #priority}.
       */
      public static final int PRIORITY_HIGHEST = 10000;
  }
  