1 /* 2 * Copyright (C) 2011 The Android Open Source Project 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 17 package com.android.gallery3d.app; 18 19 import com.android.gallery3d.R; 20 21 import android.app.ActionBar; 22 import android.app.Activity; 23 import android.app.AlertDialog; 24 import android.content.Context; 25 import android.content.DialogInterface; 26 import android.view.LayoutInflater; 27 import android.view.Menu; 28 import android.view.MenuItem; 29 import android.view.View; 30 import android.view.ViewGroup; 31 import android.widget.BaseAdapter; 32 import android.widget.ShareActionProvider; 33 import android.widget.TextView; 34 35 import java.util.ArrayList; 36 37 public class GalleryActionBar implements ActionBar.OnNavigationListener { 38 private static final String TAG = "GalleryActionBar"; 39 40 public interface ClusterRunner { 41 public void doCluster(int id); 42 } 43 44 private static class ActionItem { 45 public int action; 46 public boolean enabled; 47 public boolean visible; 48 public int spinnerTitle; 49 public int dialogTitle; 50 public int clusterBy; 51 52 public ActionItem(int action, boolean applied, boolean enabled, int title, 53 int clusterBy) { 54 this(action, applied, enabled, title, title, clusterBy); 55 } 56 57 public ActionItem(int action, boolean applied, boolean enabled, int spinnerTitle, 58 int dialogTitle, int clusterBy) { 59 this.action = action; 60 this.enabled = enabled; 61 this.spinnerTitle = spinnerTitle; 62 this.dialogTitle = dialogTitle; 63 this.clusterBy = clusterBy; 64 this.visible = true; 65 } 66 } 67 68 private static final ActionItem[] sClusterItems = new ActionItem[] { 69 new ActionItem(FilterUtils.CLUSTER_BY_ALBUM, true, false, R.string.albums, 70 R.string.group_by_album), 71 new ActionItem(FilterUtils.CLUSTER_BY_LOCATION, true, false, 72 R.string.locations, R.string.location, R.string.group_by_location), 73 new ActionItem(FilterUtils.CLUSTER_BY_TIME, true, false, R.string.times, 74 R.string.time, R.string.group_by_time), 75 new ActionItem(FilterUtils.CLUSTER_BY_FACE, true, false, R.string.people, 76 R.string.group_by_faces), 77 new ActionItem(FilterUtils.CLUSTER_BY_TAG, true, false, R.string.tags, 78 R.string.group_by_tags) 79 }; 80 81 private class ClusterAdapter extends BaseAdapter { 82 83 public int getCount() { 84 return sClusterItems.length; 85 } 86 87 public Object getItem(int position) { 88 return sClusterItems[position]; 89 } 90 91 public long getItemId(int position) { 92 return sClusterItems[position].action; 93 } 94 95 public View getView(int position, View convertView, ViewGroup parent) { 96 if (convertView == null) { 97 convertView = mInflater.inflate(R.layout.action_bar_text, 98 parent, false); 99 } 100 TextView view = (TextView) convertView; 101 view.setText(sClusterItems[position].spinnerTitle); 102 return convertView; 103 } 104 } 105 106 private ClusterRunner mClusterRunner; 107 private CharSequence[] mTitles; 108 private ArrayList<Integer> mActions; 109 private Context mContext; 110 private LayoutInflater mInflater; 111 private GalleryActivity mActivity; 112 private ActionBar mActionBar; 113 private int mCurrentIndex; 114 private ClusterAdapter mAdapter = new ClusterAdapter(); 115 116 public GalleryActionBar(GalleryActivity activity) { 117 mActionBar = ((Activity) activity).getActionBar(); 118 mContext = activity.getAndroidContext(); 119 mActivity = activity; 120 mInflater = ((Activity) mActivity).getLayoutInflater(); 121 mCurrentIndex = 0; 122 } 123 124 public static int getHeight(Activity activity) { 125 ActionBar actionBar = activity.getActionBar(); 126 return actionBar != null ? actionBar.getHeight() : 0; 127 } 128 129 private void createDialogData() { 130 ArrayList<CharSequence> titles = new ArrayList<CharSequence>(); 131 mActions = new ArrayList<Integer>(); 132 for (ActionItem item : sClusterItems) { 133 if (item.enabled && item.visible) { 134 titles.add(mContext.getString(item.dialogTitle)); 135 mActions.add(item.action); 136 } 137 } 138 mTitles = new CharSequence[titles.size()]; 139 titles.toArray(mTitles); 140 } 141 142 public void setClusterItemEnabled(int id, boolean enabled) { 143 for (ActionItem item : sClusterItems) { 144 if (item.action == id) { 145 item.enabled = enabled; 146 return; 147 } 148 } 149 } 150 151 public void setClusterItemVisibility(int id, boolean visible) { 152 for (ActionItem item : sClusterItems) { 153 if (item.action == id) { 154 item.visible = visible; 155 return; 156 } 157 } 158 } 159 160 public int getClusterTypeAction() { 161 return sClusterItems[mCurrentIndex].action; 162 } 163 164 public static String getClusterByTypeString(Context context, int type) { 165 for (ActionItem item : sClusterItems) { 166 if (item.action == type) { 167 return context.getString(item.clusterBy); 168 } 169 } 170 return null; 171 } 172 173 public static ShareActionProvider initializeShareActionProvider(Menu menu) { 174 MenuItem item = menu.findItem(R.id.action_share); 175 ShareActionProvider shareActionProvider = null; 176 if (item != null) { 177 shareActionProvider = (ShareActionProvider) item.getActionProvider(); 178 } 179 return shareActionProvider; 180 } 181 182 public void showClusterMenu(int action, ClusterRunner runner) { 183 Log.v(TAG, "showClusterMenu: runner=" + runner); 184 // Don't set cluster runner until action bar is ready. 185 mClusterRunner = null; 186 mActionBar.setListNavigationCallbacks(mAdapter, this); 187 mActionBar.setNavigationMode(ActionBar.NAVIGATION_MODE_LIST); 188 setSelectedAction(action); 189 mClusterRunner = runner; 190 } 191 192 public void hideClusterMenu() { 193 mClusterRunner = null; 194 mActionBar.setNavigationMode(ActionBar.NAVIGATION_MODE_STANDARD); 195 } 196 197 public void showClusterDialog(final ClusterRunner clusterRunner) { 198 createDialogData(); 199 final ArrayList<Integer> actions = mActions; 200 new AlertDialog.Builder(mContext).setTitle(R.string.group_by).setItems( 201 mTitles, new DialogInterface.OnClickListener() { 202 public void onClick(DialogInterface dialog, int which) { 203 clusterRunner.doCluster(actions.get(which).intValue()); 204 } 205 }).create().show(); 206 } 207 208 public void setTitle(String title) { 209 if (mActionBar != null) mActionBar.setTitle(title); 210 } 211 212 public void setTitle(int titleId) { 213 if (mActionBar != null) mActionBar.setTitle(titleId); 214 } 215 216 public void setSubtitle(String title) { 217 if (mActionBar != null) mActionBar.setSubtitle(title); 218 } 219 220 public void setNavigationMode(int mode) { 221 if (mActionBar != null) mActionBar.setNavigationMode(mode); 222 } 223 224 public int getHeight() { 225 return mActionBar == null ? 0 : mActionBar.getHeight(); 226 } 227 228 public boolean setSelectedAction(int type) { 229 for (int i = 0, n = sClusterItems.length; i < n; i++) { 230 ActionItem item = sClusterItems[i]; 231 if (item.action == type) { 232 mActionBar.setSelectedNavigationItem(i); 233 mCurrentIndex = i; 234 return true; 235 } 236 } 237 return false; 238 } 239 240 @Override 241 public boolean onNavigationItemSelected(int itemPosition, long itemId) { 242 if (itemPosition != mCurrentIndex && mClusterRunner != null) { 243 mActivity.getGLRoot().lockRenderThread(); 244 try { 245 mClusterRunner.doCluster(sClusterItems[itemPosition].action); 246 } finally { 247 mActivity.getGLRoot().unlockRenderThread(); 248 } 249 } 250 return false; 251 } 252 } 253
