actionbarsherlock/src/android/support/v4/app/Watson.java

   1 package android.support.v4.app;
   2
   3 import android.util.Log;
   4 import android.view.View;
   5 import android.view.Window;
   6 import com.actionbarsherlock.ActionBarSherlock.OnCreatePanelMenuListener;
   7 import com.actionbarsherlock.ActionBarSherlock.OnMenuItemSelectedListener;
   8 import com.actionbarsherlock.ActionBarSherlock.OnPreparePanelListener;
   9 import com.actionbarsherlock.view.Menu;
  10 import com.actionbarsherlock.view.MenuInflater;
  11 import com.actionbarsherlock.view.MenuItem;
  12
  13 import java.util.ArrayList;
  14
  15 /** I'm in ur package. Stealing ur variables. */
  16 public abstract class Watson extends FragmentActivity implements OnCreatePanelMenuListener, OnPreparePanelListener, OnMenuItemSelectedListener {
  17     private static final boolean DEBUG = false;
  18     private static final String TAG = "Watson";
  19
  20     /** Fragment interface for menu creation callback. */
  21     public interface OnCreateOptionsMenuListener {
  22         public void onCreateOptionsMenu(Menu menu, MenuInflater inflater);
  23     }
  24     /** Fragment interface for menu preparation callback. */
  25     public interface OnPrepareOptionsMenuListener {
  26         public void onPrepareOptionsMenu(Menu menu);
  27     }
  28     /** Fragment interface for menu item selection callback. */
  29     public interface OnOptionsItemSelectedListener {
  30         public boolean onOptionsItemSelected(MenuItem item);
  31     }
  32
  33     private ArrayList<Fragment> mCreatedMenus;
  34
  35
  36     ///////////////////////////////////////////////////////////////////////////
  37     // Sherlock menu handling
  38     ///////////////////////////////////////////////////////////////////////////
  39
  40     @Override
  41     public boolean onCreatePanelMenu(int featureId, Menu menu) {
  42         if (DEBUG) Log.d(TAG, "[onCreatePanelMenu] featureId: " + featureId + ", menu: " + menu);
  43
  44         if (featureId == Window.FEATURE_OPTIONS_PANEL) {
  45             boolean result = onCreateOptionsMenu(menu);
  46             if (DEBUG) Log.d(TAG, "[onCreatePanelMenu] activity create result: " + result);
  47
  48             MenuInflater inflater = getSupportMenuInflater();
  49             boolean show = false;
  50             ArrayList<Fragment> newMenus = null;
  51             if (mFragments.mAdded != null) {
  52                 for (int i = 0; i < mFragments.mAdded.size(); i++) {
  53                     Fragment f = mFragments.mAdded.get(i);
  54                     if (f != null && !f.mHidden && f.mHasMenu && f.mMenuVisible && f instanceof OnCreateOptionsMenuListener) {
  55                         show = true;
  56                         ((OnCreateOptionsMenuListener)f).onCreateOptionsMenu(menu, inflater);
  57                         if (newMenus == null) {
  58                             newMenus = new ArrayList<Fragment>();
  59                         }
  60                         newMenus.add(f);
  61                     }
  62                 }
  63             }
  64
  65             if (mCreatedMenus != null) {
  66                 for (int i = 0; i < mCreatedMenus.size(); i++) {
  67                     Fragment f = mCreatedMenus.get(i);
  68                     if (newMenus == null || !newMenus.contains(f)) {
  69                         f.onDestroyOptionsMenu();
  70                     }
  71                 }
  72             }
  73
  74             mCreatedMenus = newMenus;
  75
  76             if (DEBUG) Log.d(TAG, "[onCreatePanelMenu] fragments create result: " + show);
  77             result |= show;
  78
  79             if (DEBUG) Log.d(TAG, "[onCreatePanelMenu] returning " + result);
  80             return result;
  81         }
  82         return false;
  83     }
  84
  85     @Override
  86     public boolean onPreparePanel(int featureId, View view, Menu menu) {
  87         if (DEBUG) Log.d(TAG, "[onPreparePanel] featureId: " + featureId + ", view: " + view + " menu: " + menu);
  88
  89         if (featureId == Window.FEATURE_OPTIONS_PANEL) {
  90             boolean result = onPrepareOptionsMenu(menu);
  91             if (DEBUG) Log.d(TAG, "[onPreparePanel] activity prepare result: " + result);
  92
  93             boolean show = false;
  94             if (mFragments.mAdded != null) {
  95                 for (int i = 0; i < mFragments.mAdded.size(); i++) {
  96                     Fragment f = mFragments.mAdded.get(i);
  97                     if (f != null && !f.mHidden && f.mHasMenu && f.mMenuVisible && f instanceof OnPrepareOptionsMenuListener) {
  98                         show = true;
  99                         ((OnPrepareOptionsMenuListener)f).onPrepareOptionsMenu(menu);
 100                     }
 101                 }
 102             }
 103
 104             if (DEBUG) Log.d(TAG, "[onPreparePanel] fragments prepare result: " + show);
 105             result |= show;
 106
 107             result &= menu.hasVisibleItems();
 108             if (DEBUG) Log.d(TAG, "[onPreparePanel] returning " + result);
 109             return result;
 110         }
 111         return false;
 112     }
 113
 114     @Override
 115     public boolean onMenuItemSelected(int featureId, MenuItem item) {
 116         if (DEBUG) Log.d(TAG, "[onMenuItemSelected] featureId: " + featureId + ", item: " + item);
 117
 118         if (featureId == Window.FEATURE_OPTIONS_PANEL) {
 119             if (onOptionsItemSelected(item)) {
 120                 return true;
 121             }
 122
 123             if (mFragments.mAdded != null) {
 124                 for (int i = 0; i < mFragments.mAdded.size(); i++) {
 125                     Fragment f = mFragments.mAdded.get(i);
 126                     if (f != null && !f.mHidden && f.mHasMenu && f.mMenuVisible && f instanceof OnOptionsItemSelectedListener) {
 127                         if (((OnOptionsItemSelectedListener)f).onOptionsItemSelected(item)) {
 128                             return true;
 129                         }
 130                     }
 131                 }
 132             }
 133         }
 134         return false;
 135     }
 136
 137     public abstract boolean onCreateOptionsMenu(Menu menu);
 138
 139     public abstract boolean onPrepareOptionsMenu(Menu menu);
 140
 141     public abstract boolean onOptionsItemSelected(MenuItem item);
 142
 143     public abstract MenuInflater getSupportMenuInflater();
 144 }