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/*
* Copyright (C) 2011 The Android Open Source Project
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package com.android.gallery3d.app;
import java.util.ArrayList;
import com.android.gallery3d.R;
import android.app.ActionBar;
import android.app.ActionBar.Tab;
import android.app.Activity;
import android.app.AlertDialog;
import android.app.FragmentTransaction;
import android.content.Context;
import android.content.DialogInterface;
import android.view.Menu;
import android.view.MenuItem;
import android.widget.ShareActionProvider;
public class GalleryActionBar implements ActionBar.TabListener {
private static final String TAG = "GalleryActionBar";
public interface ClusterRunner {
public void doCluster(int id);
}
private static class ActionItem {
public int action;
public boolean enabled;
public boolean visible;
public int tabTitle;
public int dialogTitle;
public int clusterBy;
public ActionItem(int action, boolean applied, boolean enabled, int title,
int clusterBy) {
this(action, applied, enabled, title, title, clusterBy);
}
public ActionItem(int action, boolean applied, boolean enabled, int tabTitle,
int dialogTitle, int clusterBy) {
this.action = action;
this.enabled = enabled;
this.tabTitle = tabTitle;
this.dialogTitle = dialogTitle;
this.clusterBy = clusterBy;
this.visible = true;
}
}
private static final ActionItem[] sClusterItems = new ActionItem[] {
new ActionItem(FilterUtils.CLUSTER_BY_ALBUM, true, false, R.string.albums,
R.string.group_by_album),
new ActionItem(FilterUtils.CLUSTER_BY_LOCATION, true, false,
R.string.locations, R.string.location, R.string.group_by_location),
new ActionItem(FilterUtils.CLUSTER_BY_TIME, true, false, R.string.times,
R.string.time, R.string.group_by_time),
new ActionItem(FilterUtils.CLUSTER_BY_FACE, true, false, R.string.people,
R.string.group_by_faces),
new ActionItem(FilterUtils.CLUSTER_BY_TAG, true, false, R.string.tags,
R.string.group_by_tags)
};
private ClusterRunner mClusterRunner;
private CharSequence[] mTitles;
private ArrayList<Integer> mActions;
private Context mContext;
private ActionBar mActionBar;
// We need this because ActionBar.getSelectedTab() doesn't work when
// ActionBar is hidden.
private Tab mCurrentTab;
public GalleryActionBar(Activity activity) {
mActionBar = activity.getActionBar();
mContext = activity;
for (ActionItem item : sClusterItems) {
mActionBar.addTab(mActionBar.newTab().setText(item.tabTitle).
setTag(item).setTabListener(this));
}
}
public static int getHeight(Activity activity) {
ActionBar actionBar = activity.getActionBar();
return actionBar != null ? actionBar.getHeight() : 0;
}
private void createDialogData() {
ArrayList<CharSequence> titles = new ArrayList<CharSequence>();
mActions = new ArrayList<Integer>();
for (ActionItem item : sClusterItems) {
if (item.enabled && item.visible) {
titles.add(mContext.getString(item.dialogTitle));
mActions.add(item.action);
}
}
mTitles = new CharSequence[titles.size()];
titles.toArray(mTitles);
}
public void setClusterItemEnabled(int id, boolean enabled) {
for (ActionItem item : sClusterItems) {
if (item.action == id) {
item.enabled = enabled;
return;
}
}
}
public void setClusterItemVisibility(int id, boolean visible) {
for (ActionItem item : sClusterItems) {
if (item.action == id) {
item.visible = visible;
return;
}
}
}
public int getClusterTypeAction() {
if (mCurrentTab != null) {
ActionItem item = (ActionItem) mCurrentTab.getTag();
return item.action;
}
// By default, it's group-by-album
return FilterUtils.CLUSTER_BY_ALBUM;
}
public static String getClusterByTypeString(Context context, int type) {
for (ActionItem item : sClusterItems) {
if (item.action == type) {
return context.getString(item.clusterBy);
}
}
return null;
}
public static ShareActionProvider initializeShareActionProvider(Menu menu) {
MenuItem item = menu.findItem(R.id.action_share);
ShareActionProvider shareActionProvider = null;
if (item != null) {
shareActionProvider = (ShareActionProvider) item.getActionProvider();
shareActionProvider.setShareHistoryFileName(
ShareActionProvider.DEFAULT_SHARE_HISTORY_FILE_NAME);
}
return shareActionProvider;
}
public void showClusterTabs(ClusterRunner runner) {
mActionBar.setNavigationMode(ActionBar.NAVIGATION_MODE_TABS);
mClusterRunner = runner;
}
public void hideClusterTabs() {
mActionBar.setNavigationMode(ActionBar.NAVIGATION_MODE_STANDARD);
mClusterRunner = null;
}
public void showClusterDialog(final ClusterRunner clusterRunner) {
createDialogData();
final ArrayList<Integer> actions = mActions;
new AlertDialog.Builder(mContext).setTitle(R.string.group_by).setItems(
mTitles, new DialogInterface.OnClickListener() {
public void onClick(DialogInterface dialog, int which) {
clusterRunner.doCluster(actions.get(which).intValue());
}
}).create().show();
}
public void setTitle(String title) {
if (mActionBar != null) mActionBar.setTitle(title);
}
public void setTitle(int titleId) {
if (mActionBar != null) mActionBar.setTitle(titleId);
}
public void setSubtitle(String title) {
if (mActionBar != null) mActionBar.setSubtitle(title);
}
public void setNavigationMode(int mode) {
if (mActionBar != null) mActionBar.setNavigationMode(mode);
}
public int getHeight() {
return mActionBar == null ? 0 : mActionBar.getHeight();
}
@Override
public void onTabSelected(Tab tab, FragmentTransaction ft) {
if (mCurrentTab == tab) return;
mCurrentTab = tab;
ActionItem item = (ActionItem) tab.getTag();
if (mClusterRunner != null) mClusterRunner.doCluster(item.action);
}
@Override
public void onTabUnselected(Tab tab, FragmentTransaction ft) {
}
@Override
public void onTabReselected(Tab tab, FragmentTransaction ft) {
}
}
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