content: package com.actionbarsherlock;
  
  import android.app.Activity;
  import android.content.Context;
  import android.content.res.Configuration;
  import android.os.Build;
  import android.os.Bundle;
  import android.util.DisplayMetrics;
  import android.util.Log;
  import android.view.KeyEvent;
  import android.view.View;
  import android.view.ViewGroup;
  import android.view.Window;
  import com.actionbarsherlock.app.ActionBar;
  import com.actionbarsherlock.internal.ActionBarSherlockCompat;
  import com.actionbarsherlock.internal.ActionBarSherlockNative;
  import com.actionbarsherlock.view.ActionMode;
  import com.actionbarsherlock.view.Menu;
  import com.actionbarsherlock.view.MenuInflater;
  import com.actionbarsherlock.view.MenuItem;
  import java.lang.annotation.ElementType;
  import java.lang.annotation.Retention;
  import java.lang.annotation.RetentionPolicy;
  import java.lang.annotation.Target;
  import java.lang.reflect.Constructor;
  import java.lang.reflect.InvocationTargetException;
  import java.util.HashMap;
  import java.util.Iterator;
  
  import static android.view.ViewGroup.LayoutParams.MATCH_PARENT;
  
  /**
   * <p>Helper for implementing the action bar design pattern across all versions
   * of Android.</p>
   *
   * <p>This class will manage interaction with a custom action bar based on the
   * Android 4.0 source code. The exposed API mirrors that of its native
   * counterpart and you should refer to its documentation for instruction.</p>
   *
   * @author Jake Wharton <jakewharton@gmail.com>
   */
  public abstract class ActionBarSherlock {
      protected static final String TAG = "ActionBarSherlock";
  
      private static final Class<?>[] CONSTRUCTOR_ARGS = new Class[] { Activity.class, int.class };
      private static final HashMap<Implementation, Class<? extends ActionBarSherlock>> IMPLEMENTATIONS =
              new HashMap<Implementation, Class<? extends ActionBarSherlock>>();
  
      static {
          //Register our two built-in implementations
          registerImplementation(ActionBarSherlockCompat.class);
          registerImplementation(ActionBarSherlockNative.class);
      }
  
  
      /**
       * <p>Denotes an implementation of ActionBarSherlock which provides an
       * action bar-enhanced experience.</p>
       */
      @Target(ElementType.TYPE)
      @Retention(RetentionPolicy.RUNTIME)
      public @interface Implementation {
          static final int DEFAULT_API = -1;
          static final int DEFAULT_DPI = -1;
  
          int api() default DEFAULT_API;
          int dpi() default DEFAULT_DPI;
      }
  
  
      /** Activity interface for menu creation callback. */
      public interface OnCreatePanelMenuListener {
          public boolean onCreatePanelMenu(int featureId, Menu menu);
      }
      /** Activity interface for menu creation callback. */
      public interface OnCreateOptionsMenuListener {
          public boolean onCreateOptionsMenu(Menu menu);
      }
      /** Activity interface for menu item selection callback. */
      public interface OnMenuItemSelectedListener {
          public boolean onMenuItemSelected(int featureId, MenuItem item);
      }
      /** Activity interface for menu item selection callback. */
      public interface OnOptionsItemSelectedListener {
          public boolean onOptionsItemSelected(MenuItem item);
      }
      /** Activity interface for menu preparation callback. */
      public interface OnPreparePanelListener {
          public boolean onPreparePanel(int featureId, View view, Menu menu);
      }
      /** Activity interface for menu preparation callback. */
      public interface OnPrepareOptionsMenuListener {
          public boolean onPrepareOptionsMenu(Menu menu);
      }
      /** Activity interface for action mode finished callback. */
      public interface OnActionModeFinishedListener {
          public void onActionModeFinished(ActionMode mode);
      }
      /** Activity interface for action mode started callback. */
      public interface OnActionModeStartedListener {
          public void onActionModeStarted(ActionMode mode);
      }
  
  
      /**
       * If set, the logic in these classes will assume that an {@link Activity}
       * is dispatching all of the required events to the class. This flag should
       * only be used internally or if you are creating your own base activity
       * modeled after one of the included types (e.g., {@code SherlockActivity}).
       */
      public static final int FLAG_DELEGATE = 1;
  
  
      /**
       * Register an ActionBarSherlock implementation.
       *
       * @param implementationClass Target implementation class which extends
       * {@link ActionBarSherlock}. This class must also be annotated with
       * {@link Implementation}.
       */
      public static void registerImplementation(Class<? extends ActionBarSherlock> implementationClass) {
          if (!implementationClass.isAnnotationPresent(Implementation.class)) {
              throw new IllegalArgumentException("Class " + implementationClass.getSimpleName() + " is not annotated with @Implementation");
          } else if (IMPLEMENTATIONS.containsValue(implementationClass)) {
              if (BuildConfig.DEBUG) Log.w(TAG, "Class " + implementationClass.getSimpleName() + " already registered");
              return;
          }
  
          Implementation impl = implementationClass.getAnnotation(Implementation.class);
          if (BuildConfig.DEBUG) Log.i(TAG, "Registering " + implementationClass.getSimpleName() + " with qualifier " + impl);
          IMPLEMENTATIONS.put(impl, implementationClass);
      }
  
      /**
       * Unregister an ActionBarSherlock implementation. <strong>This should be
       * considered very volatile and you should only use it if you know what
       * you are doing.</strong> You have been warned.
       *
       * @param implementationClass Target implementation class.
       * @return Boolean indicating whether the class was removed.
       */
      public static boolean unregisterImplementation(Class<? extends ActionBarSherlock> implementationClass) {
          return IMPLEMENTATIONS.values().remove(implementationClass);
      }
  
      /**
       * Wrap an activity with an action bar abstraction which will enable the
       * use of a custom implementation on platforms where a native version does
       * not exist.
       *
       * @param activity Activity to wrap.
       * @return Instance to interact with the action bar.
       */
      public static ActionBarSherlock wrap(Activity activity) {
          return wrap(activity, 0);
      }
  
      /**
       * Wrap an activity with an action bar abstraction which will enable the
       * use of a custom implementation on platforms where a native version does
       * not exist.
       *
       * @param activity Owning activity.
       * @param flags Option flags to control behavior.
       * @return Instance to interact with the action bar.
       */
      public static ActionBarSherlock wrap(Activity activity, int flags) {
          //Create a local implementation map we can modify
          HashMap<Implementation, Class<? extends ActionBarSherlock>> impls =
                  new HashMap<Implementation, Class<? extends ActionBarSherlock>>(IMPLEMENTATIONS);
          boolean hasQualfier;
  
          /* DPI FILTERING */
          hasQualfier = false;
          for (Implementation key : impls.keySet()) {
              //Only honor TVDPI as a specific qualifier
              if (key.dpi() == DisplayMetrics.DENSITY_TV) {
                  hasQualfier = true;
                  break;
              }
          }
          if (hasQualfier) {
              final boolean isTvDpi = activity.getResources().getDisplayMetrics().densityDpi == DisplayMetrics.DENSITY_TV;
              for (Iterator<Implementation> keys = impls.keySet().iterator(); keys.hasNext(); ) {
                  int keyDpi = keys.next().dpi();
                  if ((isTvDpi && keyDpi != DisplayMetrics.DENSITY_TV)
                          || (!isTvDpi && keyDpi == DisplayMetrics.DENSITY_TV)) {
                      keys.remove();
                  }
              }
          }
  
          /* API FILTERING */
          hasQualfier = false;
          for (Implementation key : impls.keySet()) {
              if (key.api() != Implementation.DEFAULT_API) {
                  hasQualfier = true;
                  break;
              }
          }
          if (hasQualfier) {
              final int runtimeApi = Build.VERSION.SDK_INT;
              int bestApi = 0;
              for (Iterator<Implementation> keys = impls.keySet().iterator(); keys.hasNext(); ) {
                  int keyApi = keys.next().api();
                  if (keyApi > runtimeApi) {
                      keys.remove();
                  } else if (keyApi > bestApi) {
                      bestApi = keyApi;
                  }
              }
              for (Iterator<Implementation> keys = impls.keySet().iterator(); keys.hasNext(); ) {
                  if (keys.next().api() != bestApi) {
                      keys.remove();
                  }
              }
          }
  
          if (impls.size() > 1) {
              throw new IllegalStateException("More than one implementation matches configuration.");
          }
          if (impls.isEmpty()) {
              throw new IllegalStateException("No implementations match configuration.");
          }
          Class<? extends ActionBarSherlock> impl = impls.values().iterator().next();
          if (BuildConfig.DEBUG) Log.i(TAG, "Using implementation: " + impl.getSimpleName());
  
          try {
              Constructor<? extends ActionBarSherlock> ctor = impl.getConstructor(CONSTRUCTOR_ARGS);
              return ctor.newInstance(activity, flags);
          } catch (NoSuchMethodException e) {
              throw new RuntimeException(e);
          } catch (IllegalArgumentException e) {
              throw new RuntimeException(e);
          } catch (InstantiationException e) {
              throw new RuntimeException(e);
          } catch (IllegalAccessException e) {
              throw new RuntimeException(e);
          } catch (InvocationTargetException e) {
              throw new RuntimeException(e);
          }
      }
  
  
      /** Activity which is displaying the action bar. Also used for context. */
      protected final Activity mActivity;
      /** Whether delegating actions for the activity or managing ourselves. */
      protected final boolean mIsDelegate;
  
      /** Reference to our custom menu inflater which supports action items. */
      protected MenuInflater mMenuInflater;
  
  
  
      protected ActionBarSherlock(Activity activity, int flags) {
          if (BuildConfig.DEBUG) Log.d(TAG, "[<ctor>] activity: " + activity + ", flags: " + flags);
  
          mActivity = activity;
          mIsDelegate = (flags & FLAG_DELEGATE) != 0;
      }
  
  
      /**
       * Get the current action bar instance.
       *
       * @return Action bar instance.
       */
      public abstract ActionBar getActionBar();
  
  
      ///////////////////////////////////////////////////////////////////////////
      // Lifecycle and interaction callbacks when delegating
      ///////////////////////////////////////////////////////////////////////////
  
      /**
       * Notify action bar of a configuration change event. Should be dispatched
       * after the call to the superclass implementation.
       *
       * <blockquote><pre>
       * @Override
       * public void onConfigurationChanged(Configuration newConfig) {
       *     super.onConfigurationChanged(newConfig);
       *     mSherlock.dispatchConfigurationChanged(newConfig);
       * }
       * </pre></blockquote>
       *
       * @param newConfig The new device configuration.
       */
      public void dispatchConfigurationChanged(Configuration newConfig) {}
  
      /**
       * Notify the action bar that the activity has finished its resuming. This
       * should be dispatched after the call to the superclass implementation.
       *
       * <blockquote><pre>
       * @Override
       * protected void onPostResume() {
       *     super.onPostResume();
       *     mSherlock.dispatchPostResume();
       * }
       * </pre></blockquote>
       */
      public void dispatchPostResume() {}
  
      /**
       * Notify the action bar that the activity is pausing. This should be
       * dispatched before the call to the superclass implementation.
       *
       * <blockquote><pre>
       * @Override
       * protected void onPause() {
       *     mSherlock.dispatchPause();
       *     super.onPause();
       * }
       * </pre></blockquote>
       */
      public void dispatchPause() {}
  
      /**
       * Notify the action bar that the activity is stopping. This should be
       * called before the superclass implementation.
       *
       * <blockquote><p>
       * @Override
       * protected void onStop() {
       *     mSherlock.dispatchStop();
       *     super.onStop();
       * }
       * </p></blockquote>
       */
      public void dispatchStop() {}
  
      /**
       * Indicate that the menu should be recreated by calling
       * {@link OnCreateOptionsMenuListener#onCreateOptionsMenu(com.actionbarsherlock.view.Menu)}.
       */
      public abstract void dispatchInvalidateOptionsMenu();
  
      /**
       * Notify the action bar that it should display its overflow menu if it is
       * appropriate for the device. The implementation should conditionally
       * call the superclass method only if this method returns {@code false}.
       *
       * <blockquote><p>
       * @Override
       * public void openOptionsMenu() {
       *     if (!mSherlock.dispatchOpenOptionsMenu()) {
       *         super.openOptionsMenu();
       *     }
       * }
       * </p></blockquote>
       *
       * @return {@code true} if the opening of the menu was handled internally.
       */
      public boolean dispatchOpenOptionsMenu() {
          return false;
      }
  
      /**
       * Notify the action bar that it should close its overflow menu if it is
       * appropriate for the device. This implementation should conditionally
       * call the superclass method only if this method returns {@code false}.
       *
       * <blockquote><pre>
       * @Override
       * public void closeOptionsMenu() {
       *     if (!mSherlock.dispatchCloseOptionsMenu()) {
       *         super.closeOptionsMenu();
       *     }
       * }
       * </pre></blockquote>
       *
       * @return {@code true} if the closing of the menu was handled internally.
       */
      public boolean dispatchCloseOptionsMenu() {
          return false;
      }
  
      /**
       * Notify the class that the activity has finished its creation. This
       * should be called after the superclass implementation.
       *
       * <blockquote><pre>
       * @Override
       * protected void onPostCreate(Bundle savedInstanceState) {
       *     mSherlock.dispatchPostCreate(savedInstanceState);
       *     super.onPostCreate(savedInstanceState);
       * }
       * </pre></blockquote>
       *
       * @param savedInstanceState If the activity is being re-initialized after
       *                           previously being shut down then this Bundle
       *                           contains the data it most recently supplied in
       *                           {@link Activity#}onSaveInstanceState(Bundle)}.
       *                           <strong>Note: Otherwise it is null.</strong>
       */
      public void dispatchPostCreate(Bundle savedInstanceState) {}
  
      /**
       * Notify the action bar that the title has changed and the action bar
       * should be updated to reflect the change. This should be called before
       * the superclass implementation.
       *
       * <blockquote><pre>
       *  @Override
       *  protected void onTitleChanged(CharSequence title, int color) {
       *      mSherlock.dispatchTitleChanged(title, color);
       *      super.onTitleChanged(title, color);
       *  }
       * </pre></blockquote>
       *
       * @param title New activity title.
       * @param color New activity color.
       */
      public void dispatchTitleChanged(CharSequence title, int color) {}
  
      /**
       * Notify the action bar the user has created a key event. This is used to
       * toggle the display of the overflow action item with the menu key and to
       * close the action mode or expanded action item with the back key.
       *
       * <blockquote><pre>
       * @Override
       * public boolean dispatchKeyEvent(KeyEvent event) {
       *     if (mSherlock.dispatchKeyEvent(event)) {
       *         return true;
       *     }
       *     return super.dispatchKeyEvent(event);
       * }
       * </pre></blockquote>
       *
       * @param event Description of the key event.
       * @return {@code true} if the event was handled.
       */
      public boolean dispatchKeyEvent(KeyEvent event) {
          return false;
      }
  
      /**
       * Notify the action bar that the Activity has triggered a menu creation
       * which should happen on the conclusion of {@link Activity#onCreate}. This
       * will be used to gain a reference to the native menu for native and
       * overflow binding as well as to indicate when compatibility create should
       * occur for the first time.
       *
       * @param menu Activity native menu.
       * @return {@code true} since we always want to say that we have a native
       */
      public abstract boolean dispatchCreateOptionsMenu(android.view.Menu menu);
  
      /**
       * Notify the action bar that the Activity has triggered a menu preparation
       * which usually means that the user has requested the overflow menu via a
       * hardware menu key. You should return the result of this method call and
       * not call the superclass implementation.
       *
       * <blockquote><p>
       * @Override
       * public final boolean onPrepareOptionsMenu(android.view.Menu menu) {
       *     return mSherlock.dispatchPrepareOptionsMenu(menu);
       * }
       * </p></blockquote>
       *
       * @param menu Activity native menu.
       * @return {@code true} if menu display should proceed.
       */
      public abstract boolean dispatchPrepareOptionsMenu(android.view.Menu menu);
  
      /**
       * Notify the action bar that a native options menu item has been selected.
       * The implementation should return the result of this method call.
       *
       * <blockquote><p>
       * @Override
       * public final boolean onOptionsItemSelected(android.view.MenuItem item) {
       *     return mSherlock.dispatchOptionsItemSelected(item);
       * }
       * </p></blockquote>
       *
       * @param item Options menu item.
       * @return @{code true} if the selection was handled.
       */
      public abstract boolean dispatchOptionsItemSelected(android.view.MenuItem item);
  
      /**
       * Notify the action bar that the overflow menu has been opened. The
       * implementation should conditionally return {@code true} if this method
       * returns {@code true}, otherwise return the result of the superclass
       * method.
       *
       * <blockquote><p>
       * @Override
       * public final boolean onMenuOpened(int featureId, android.view.Menu menu) {
       *     if (mSherlock.dispatchMenuOpened(featureId, menu)) {
       *         return true;
       *     }
       *     return super.onMenuOpened(featureId, menu);
       * }
       * </p></blockquote>
       *
       * @param featureId Window feature which triggered the event.
       * @param menu Activity native menu.
       * @return {@code true} if the event was handled by this method.
       */
      public boolean dispatchMenuOpened(int featureId, android.view.Menu menu) {
          return false;
      }
  
      /**
       * Notify the action bar that the overflow menu has been closed. This
       * method should be called before the superclass implementation.
       *
       * <blockquote><p>
       * @Override
       * public void onPanelClosed(int featureId, android.view.Menu menu) {
       *     mSherlock.dispatchPanelClosed(featureId, menu);
       *     super.onPanelClosed(featureId, menu);
       * }
       * </p></blockquote>
       *
       * @param featureId
       * @param menu
       */
      public void dispatchPanelClosed(int featureId, android.view.Menu menu) {}
  
      /**
       * Notify the action bar that the activity has been destroyed. This method
       * should be called before the superclass implementation.
       *
       * <blockquote><p>
       * @Override
       * public void onDestroy() {
       *     mSherlock.dispatchDestroy();
       *     super.onDestroy();
       * }
       * </p></blockquote>
       */
      public void dispatchDestroy() {}
  
      public void dispatchSaveInstanceState(Bundle outState) {}
  
      public void dispatchRestoreInstanceState(Bundle savedInstanceState) {}
  
      ///////////////////////////////////////////////////////////////////////////
      ///////////////////////////////////////////////////////////////////////////
  
  
      /**
       * Internal method to trigger the menu creation process.
       *
       * @return {@code true} if menu creation should proceed.
       */
      protected final boolean callbackCreateOptionsMenu(Menu menu) {
          if (BuildConfig.DEBUG) Log.d(TAG, "[callbackCreateOptionsMenu] menu: " + menu);
  
          boolean result = true;
          if (mActivity instanceof OnCreatePanelMenuListener) {
              OnCreatePanelMenuListener listener = (OnCreatePanelMenuListener)mActivity;
              result = listener.onCreatePanelMenu(Window.FEATURE_OPTIONS_PANEL, menu);
          } else if (mActivity instanceof OnCreateOptionsMenuListener) {
              OnCreateOptionsMenuListener listener = (OnCreateOptionsMenuListener)mActivity;
              result = listener.onCreateOptionsMenu(menu);
          }
  
          if (BuildConfig.DEBUG) Log.d(TAG, "[callbackCreateOptionsMenu] returning " + result);
          return result;
      }
  
      /**
       * Internal method to trigger the menu preparation process.
       *
       * @return {@code true} if menu preparation should proceed.
       */
      protected final boolean callbackPrepareOptionsMenu(Menu menu) {
          if (BuildConfig.DEBUG) Log.d(TAG, "[callbackPrepareOptionsMenu] menu: " + menu);
  
          boolean result = true;
          if (mActivity instanceof OnPreparePanelListener) {
              OnPreparePanelListener listener = (OnPreparePanelListener)mActivity;
              result = listener.onPreparePanel(Window.FEATURE_OPTIONS_PANEL, null, menu);
          } else if (mActivity instanceof OnPrepareOptionsMenuListener) {
              OnPrepareOptionsMenuListener listener = (OnPrepareOptionsMenuListener)mActivity;
              result = listener.onPrepareOptionsMenu(menu);
          }
  
          if (BuildConfig.DEBUG) Log.d(TAG, "[callbackPrepareOptionsMenu] returning " + result);
          return result;
      }
  
      /**
       * Internal method for dispatching options menu selection to the owning
       * activity callback.
       *
       * @param item Selected options menu item.
       * @return {@code true} if the item selection was handled in the callback.
       */
      protected final boolean callbackOptionsItemSelected(MenuItem item) {
          if (BuildConfig.DEBUG) Log.d(TAG, "[callbackOptionsItemSelected] item: " + item.getTitleCondensed());
  
          boolean result = false;
          if (mActivity instanceof OnMenuItemSelectedListener) {
              OnMenuItemSelectedListener listener = (OnMenuItemSelectedListener)mActivity;
              result = listener.onMenuItemSelected(Window.FEATURE_OPTIONS_PANEL, item);
          } else if (mActivity instanceof OnOptionsItemSelectedListener) {
              OnOptionsItemSelectedListener listener = (OnOptionsItemSelectedListener)mActivity;
              result = listener.onOptionsItemSelected(item);
          }
  
          if (BuildConfig.DEBUG) Log.d(TAG, "[callbackOptionsItemSelected] returning " + result);
          return result;
      }
  
  
      ///////////////////////////////////////////////////////////////////////////
      ///////////////////////////////////////////////////////////////////////////
  
  
      /**
       * Query for the availability of a certain feature.
       *
       * @param featureId The feature ID to check.
       * @return {@code true} if feature is enabled, {@code false} otherwise.
       */
      public abstract boolean hasFeature(int featureId);
  
      /**
       * Enable extended screen features. This must be called before
       * {@code setContentView()}. May be called as many times as desired as long
       * as it is before {@code setContentView()}. If not called, no extended
       * features will be available. You can not turn off a feature once it is
       * requested.
       *
       * @param featureId The desired features, defined as constants by Window.
       * @return Returns true if the requested feature is supported and now
       * enabled.
       */
      public abstract boolean requestFeature(int featureId);
  
      /**
       * Set extra options that will influence the UI for this window.
       *
       * @param uiOptions Flags specifying extra options for this window.
       */
      public abstract void setUiOptions(int uiOptions);
  
      /**
       * Set extra options that will influence the UI for this window. Only the
       * bits filtered by mask will be modified.
       *
       * @param uiOptions Flags specifying extra options for this window.
       * @param mask Flags specifying which options should be modified. Others
       *             will remain unchanged.
       */
      public abstract void setUiOptions(int uiOptions, int mask);
  
      /**
       * Set the content of the activity inside the action bar.
       *
       * @param layoutResId Layout resource ID.
       */
      public abstract void setContentView(int layoutResId);
  
      /**
       * Set the content of the activity inside the action bar.
       *
       * @param view The desired content to display.
       */
      public void setContentView(View view) {
          if (BuildConfig.DEBUG) Log.d(TAG, "[setContentView] view: " + view);
  
          setContentView(view, new ViewGroup.LayoutParams(MATCH_PARENT, MATCH_PARENT));
      }
  
      /**
       * Set the content of the activity inside the action bar.
       *
       * @param view The desired content to display.
       * @param params Layout parameters to apply to the view.
       */
      public abstract void setContentView(View view, ViewGroup.LayoutParams params);
  
      /**
       * Variation on {@link #setContentView(android.view.View, android.view.ViewGroup.LayoutParams)}
       * to add an additional content view to the screen. Added after any
       * existing ones on the screen -- existing views are NOT removed.
       *
       * @param view The desired content to display.
       * @param params Layout parameters for the view.
       */
      public abstract void addContentView(View view, ViewGroup.LayoutParams params);
  
      /**
       * Change the title associated with this activity.
       */
      public abstract void setTitle(CharSequence title);
  
      /**
       * Change the title associated with this activity.
       */
      public void setTitle(int resId) {
          if (BuildConfig.DEBUG) Log.d(TAG, "[setTitle] resId: " + resId);
  
          setTitle(mActivity.getString(resId));
      }
  
      /**
       * Sets the visibility of the progress bar in the title.
       * <p>
       * In order for the progress bar to be shown, the feature must be requested
       * via {@link #requestWindowFeature(int)}.
       *
       * @param visible Whether to show the progress bars in the title.
       */
      public abstract void setProgressBarVisibility(boolean visible);
  
      /**
       * Sets the visibility of the indeterminate progress bar in the title.
       * <p>
       * In order for the progress bar to be shown, the feature must be requested
       * via {@link #requestWindowFeature(int)}.
       *
       * @param visible Whether to show the progress bars in the title.
       */
      public abstract void setProgressBarIndeterminateVisibility(boolean visible);
  
      /**
       * Sets whether the horizontal progress bar in the title should be indeterminate (the circular
       * is always indeterminate).
       * <p>
       * In order for the progress bar to be shown, the feature must be requested
       * via {@link #requestWindowFeature(int)}.
       *
       * @param indeterminate Whether the horizontal progress bar should be indeterminate.
       */
      public abstract void setProgressBarIndeterminate(boolean indeterminate);
  
      /**
       * Sets the progress for the progress bars in the title.
       * <p>
       * In order for the progress bar to be shown, the feature must be requested
       * via {@link #requestWindowFeature(int)}.
       *
       * @param progress The progress for the progress bar. Valid ranges are from
       *            0 to 10000 (both inclusive). If 10000 is given, the progress
       *            bar will be completely filled and will fade out.
       */
      public abstract void setProgress(int progress);
  
      /**
       * Sets the secondary progress for the progress bar in the title. This
       * progress is drawn between the primary progress (set via
       * {@link #setProgress(int)} and the background. It can be ideal for media
       * scenarios such as showing the buffering progress while the default
       * progress shows the play progress.
       * <p>
       * In order for the progress bar to be shown, the feature must be requested
       * via {@link #requestWindowFeature(int)}.
       *
       * @param secondaryProgress The secondary progress for the progress bar. Valid ranges are from
       *            0 to 10000 (both inclusive).
       */
      public abstract void setSecondaryProgress(int secondaryProgress);
  
      /**
       * Get a menu inflater instance which supports the newer menu attributes.
       *
       * @return Menu inflater instance.
       */
      public MenuInflater getMenuInflater() {
          if (BuildConfig.DEBUG) Log.d(TAG, "[getMenuInflater]");
  
          // Make sure that action views can get an appropriate theme.
          if (mMenuInflater == null) {
              if (getActionBar() != null) {
                  mMenuInflater = new MenuInflater(getThemedContext(), mActivity);
              } else {
                  mMenuInflater = new MenuInflater(mActivity);
              }
          }
          return mMenuInflater;
      }
  
      protected abstract Context getThemedContext();
  
      /**
       * Start an action mode.
       *
       * @param callback Callback that will manage lifecycle events for this
       *                 context mode.
       * @return The ContextMode that was started, or null if it was canceled.
       * @see ActionMode
       */
      public abstract ActionMode startActionMode(ActionMode.Callback callback);
  
      /**
       * Ensure that the action bar is attached.
       */
      public void ensureActionBar() {}
  }
  