src/com/android/gallery3d/app/ManageCachePage.java - platform/packages/apps/Gallery2 - Git at Google

 /*
  * Copyright (C) 2010 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 android.app.Activity;
 import android.content.res.Configuration;
 import android.os.Bundle;
 import android.os.Handler;
 import android.os.Message;
 import android.text.format.Formatter;
 import android.view.LayoutInflater;
 import android.view.View;
 import android.view.View.OnClickListener;
 import android.widget.FrameLayout;
 import android.widget.ProgressBar;
 import android.widget.TextView;
 import android.widget.Toast;

 import com.android.gallery3d.R;
 import com.android.gallery3d.common.Utils;
 import com.android.gallery3d.data.MediaObject;
 import com.android.gallery3d.data.MediaSet;
 import com.android.gallery3d.data.Path;
 import com.android.gallery3d.glrenderer.GLCanvas;
 import com.android.gallery3d.ui.CacheStorageUsageInfo;
 import com.android.gallery3d.ui.GLRoot;
 import com.android.gallery3d.ui.GLView;
 import com.android.gallery3d.ui.ManageCacheDrawer;
 import com.android.gallery3d.ui.MenuExecutor;
 import com.android.gallery3d.ui.SelectionManager;
 import com.android.gallery3d.ui.SlotView;
 import com.android.gallery3d.ui.SynchronizedHandler;
 import com.android.gallery3d.util.Future;
 import com.android.gallery3d.util.GalleryUtils;
 import com.android.gallery3d.util.ThreadPool.Job;
 import com.android.gallery3d.util.ThreadPool.JobContext;

 import java.util.ArrayList;

 public class ManageCachePage extends ActivityState implements
         SelectionManager.SelectionListener, MenuExecutor.ProgressListener,
         EyePosition.EyePositionListener, OnClickListener {
     public static final String KEY_MEDIA_PATH = "media-path";

     @SuppressWarnings("unused")
     private static final String TAG = "ManageCachePage";

     private static final int DATA_CACHE_SIZE = 256;
     private static final int MSG_REFRESH_STORAGE_INFO = 1;
     private static final int MSG_REQUEST_LAYOUT = 2;
     private static final int PROGRESS_BAR_MAX = 10000;

     private SlotView mSlotView;
     private MediaSet mMediaSet;

     protected SelectionManager mSelectionManager;
     protected ManageCacheDrawer mSelectionDrawer;
     private AlbumSetDataLoader mAlbumSetDataAdapter;

     private EyePosition mEyePosition;

     // The eyes' position of the user, the origin is at the center of the
     // device and the unit is in pixels.
     private float mX;
     private float mY;
     private float mZ;

     private int mAlbumCountToMakeAvailableOffline;
     private View mFooterContent;
     private CacheStorageUsageInfo mCacheStorageInfo;
     private Future<Void> mUpdateStorageInfo;
     private Handler mHandler;
     private boolean mLayoutReady = false;

     @Override
     protected int getBackgroundColorId() {
         return R.color.cache_background;
     }

     private GLView mRootPane = new GLView() {
         private float mMatrix[] = new float[16];

         @Override
         protected void renderBackground(GLCanvas view) {
             view.clearBuffer(getBackgroundColor());
         }

         @Override
         protected void onLayout(
                 boolean changed, int left, int top, int right, int bottom) {
             // Hack: our layout depends on other components on the screen.
             // We assume the other components will complete before we get a change
             // to run a message in main thread.
             if (!mLayoutReady) {
                 mHandler.sendEmptyMessage(MSG_REQUEST_LAYOUT);
                 return;
             }
             mLayoutReady = false;

             mEyePosition.resetPosition();
             int slotViewTop = mActivity.getGalleryActionBar().getHeight();
             int slotViewBottom = bottom - top;

             View footer = mActivity.findViewById(R.id.footer);
             if (footer != null) {
                 int location[] = {0, 0};
                 footer.getLocationOnScreen(location);
                 slotViewBottom = location[1];
             }

             mSlotView.layout(0, slotViewTop, right - left, slotViewBottom);
         }

         @Override
         protected void render(GLCanvas canvas) {
             canvas.save(GLCanvas.SAVE_FLAG_MATRIX);
             GalleryUtils.setViewPointMatrix(mMatrix,
                         getWidth() / 2 + mX, getHeight() / 2 + mY, mZ);
             canvas.multiplyMatrix(mMatrix, 0);
             super.render(canvas);
             canvas.restore();
         }
     };

     @Override
     public void onEyePositionChanged(float x, float y, float z) {
         mRootPane.lockRendering();
         mX = x;
         mY = y;
         mZ = z;
         mRootPane.unlockRendering();
         mRootPane.invalidate();
     }

     private void onDown(int index) {
         mSelectionDrawer.setPressedIndex(index);
     }

     private void onUp() {
         mSelectionDrawer.setPressedIndex(-1);
     }

     public void onSingleTapUp(int slotIndex) {
         MediaSet targetSet = mAlbumSetDataAdapter.getMediaSet(slotIndex);
         if (targetSet == null) return; // Content is dirty, we shall reload soon

         // ignore selection action if the target set does not support cache
         // operation (like a local album).
         if ((targetSet.getSupportedOperations()
                 & MediaSet.SUPPORT_CACHE) == 0) {
             showToastForLocalAlbum();
             return;
         }

         Path path = targetSet.getPath();
         boolean isFullyCached =
                 (targetSet.getCacheFlag() == MediaObject.CACHE_FLAG_FULL);
         boolean isSelected = mSelectionManager.isItemSelected(path);

         if (!isFullyCached) {
             // We only count the media sets that will be made available offline
             // in this session.
             if (isSelected) {
                 --mAlbumCountToMakeAvailableOffline;
             } else {
                 ++mAlbumCountToMakeAvailableOffline;
             }
         }

         long sizeOfTarget = targetSet.getCacheSize();
         mCacheStorageInfo.increaseTargetCacheSize(
                 (isFullyCached ^ isSelected) ? -sizeOfTarget : sizeOfTarget);
         refreshCacheStorageInfo();

         mSelectionManager.toggle(path);
         mSlotView.invalidate();
     }

     @Override
     public void onCreate(Bundle data, Bundle restoreState) {
         super.onCreate(data, restoreState);
         mCacheStorageInfo = new CacheStorageUsageInfo(mActivity);
         initializeViews();
         initializeData(data);
         mEyePosition = new EyePosition(mActivity.getAndroidContext(), this);
         mHandler = new SynchronizedHandler(mActivity.getGLRoot()) {
             @Override
             public void handleMessage(Message message) {
                 switch (message.what) {
                     case MSG_REFRESH_STORAGE_INFO:
                         refreshCacheStorageInfo();
                         break;
                     case MSG_REQUEST_LAYOUT: {
                         mLayoutReady = true;
                         removeMessages(MSG_REQUEST_LAYOUT);
                         mRootPane.requestLayout();
                         break;
                     }
                 }
             }
         };
     }

     @Override
     public void onConfigurationChanged(Configuration config) {
         // We use different layout resources for different configs
         initializeFooterViews();
         FrameLayout layout = (FrameLayout) ((Activity) mActivity).findViewById(R.id.footer);
         if (layout.getVisibility() == View.VISIBLE) {
             layout.removeAllViews();
             layout.addView(mFooterContent);
         }
     }

     @Override
     public void onPause() {
         super.onPause();
         mAlbumSetDataAdapter.pause();
         mSelectionDrawer.pause();
         mEyePosition.pause();

         if (mUpdateStorageInfo != null) {
             mUpdateStorageInfo.cancel();
             mUpdateStorageInfo = null;
         }
         mHandler.removeMessages(MSG_REFRESH_STORAGE_INFO);

         FrameLayout layout = (FrameLayout) ((Activity) mActivity).findViewById(R.id.footer);
         layout.removeAllViews();
         layout.setVisibility(View.INVISIBLE);
     }

     private Job<Void> mUpdateStorageInfoJob = new Job<Void>() {
         @Override
         public Void run(JobContext jc) {
             mCacheStorageInfo.loadStorageInfo(jc);
             if (!jc.isCancelled()) {
                 mHandler.sendEmptyMessage(MSG_REFRESH_STORAGE_INFO);
             }
             return null;
         }
     };

     @Override
     public void onResume() {
         super.onResume();
         setContentPane(mRootPane);
         mAlbumSetDataAdapter.resume();
         mSelectionDrawer.resume();
         mEyePosition.resume();
         mUpdateStorageInfo = mActivity.getThreadPool().submit(mUpdateStorageInfoJob);
         FrameLayout layout = (FrameLayout) ((Activity) mActivity).findViewById(R.id.footer);
         layout.addView(mFooterContent);
         layout.setVisibility(View.VISIBLE);
     }

     private void initializeData(Bundle data) {
         String mediaPath = data.getString(ManageCachePage.KEY_MEDIA_PATH);
         mMediaSet = mActivity.getDataManager().getMediaSet(mediaPath);
         mSelectionManager.setSourceMediaSet(mMediaSet);

         // We will always be in selection mode in this page.
         mSelectionManager.setAutoLeaveSelectionMode(false);
         mSelectionManager.enterSelectionMode();

         mAlbumSetDataAdapter = new AlbumSetDataLoader(
                 mActivity, mMediaSet, DATA_CACHE_SIZE);
         mSelectionDrawer.setModel(mAlbumSetDataAdapter);
     }

     private void initializeViews() {
         Activity activity = mActivity;

         mSelectionManager = new SelectionManager(mActivity, true);
         mSelectionManager.setSelectionListener(this);

         Config.ManageCachePage config = Config.ManageCachePage.get(activity);
         mSlotView = new SlotView(mActivity, config.slotViewSpec);
         mSelectionDrawer = new ManageCacheDrawer(mActivity, mSelectionManager, mSlotView,
                 config.labelSpec, config.cachePinSize, config.cachePinMargin);
         mSlotView.setSlotRenderer(mSelectionDrawer);
         mSlotView.setListener(new SlotView.SimpleListener() {
             @Override
             public void onDown(int index) {
                 ManageCachePage.this.onDown(index);
             }

             @Override
             public void onUp(boolean followedByLongPress) {
                 ManageCachePage.this.onUp();
             }

             @Override
             public void onSingleTapUp(int slotIndex) {
                 ManageCachePage.this.onSingleTapUp(slotIndex);
             }
         });
         mRootPane.addComponent(mSlotView);
         initializeFooterViews();
     }

     private void initializeFooterViews() {
         Activity activity = mActivity;

         LayoutInflater inflater = activity.getLayoutInflater();
         mFooterContent = inflater.inflate(R.layout.manage_offline_bar, null);

         mFooterContent.findViewById(R.id.done).setOnClickListener(this);
         refreshCacheStorageInfo();
     }

     @Override
     public void onClick(View view) {
         Utils.assertTrue(view.getId() == R.id.done);
         GLRoot root = mActivity.getGLRoot();
         root.lockRenderThread();
         try {
             ArrayList<Path> ids = mSelectionManager.getSelected(false);
             if (ids.size() == 0) {
                 onBackPressed();
                 return;
             }
             showToast();

             MenuExecutor menuExecutor = new MenuExecutor(mActivity, mSelectionManager);
             menuExecutor.startAction(R.id.action_toggle_full_caching,
                     R.string.process_caching_requests, this);
         } finally {
             root.unlockRenderThread();
         }
     }

     private void showToast() {
         if (mAlbumCountToMakeAvailableOffline > 0) {
             Activity activity = mActivity;
             Toast.makeText(activity, activity.getResources().getQuantityString(
                     R.plurals.make_albums_available_offline,
                     mAlbumCountToMakeAvailableOffline),
                     Toast.LENGTH_SHORT).show();
         }
     }

     private void showToastForLocalAlbum() {
         Activity activity = mActivity;
         Toast.makeText(activity, activity.getResources().getString(
             R.string.try_to_set_local_album_available_offline),
             Toast.LENGTH_SHORT).show();
     }

     private void refreshCacheStorageInfo() {
         ProgressBar progressBar = (ProgressBar) mFooterContent.findViewById(R.id.progress);
         TextView status = (TextView) mFooterContent.findViewById(R.id.status);
         progressBar.setMax(PROGRESS_BAR_MAX);
         long totalBytes = mCacheStorageInfo.getTotalBytes();
         long usedBytes = mCacheStorageInfo.getUsedBytes();
         long expectedBytes = mCacheStorageInfo.getExpectedUsedBytes();
         long freeBytes = mCacheStorageInfo.getFreeBytes();

         Activity activity = mActivity;
         if (totalBytes == 0) {
             progressBar.setProgress(0);
             progressBar.setSecondaryProgress(0);

             // TODO: get the string translated
             String label = activity.getString(R.string.free_space_format, "-");
             status.setText(label);
         } else {
             progressBar.setProgress((int) (usedBytes * PROGRESS_BAR_MAX / totalBytes));
             progressBar.setSecondaryProgress(
                     (int) (expectedBytes * PROGRESS_BAR_MAX / totalBytes));
             String label = activity.getString(R.string.free_space_format,
                     Formatter.formatFileSize(activity, freeBytes));
             status.setText(label);
         }
     }

     @Override
     public void onProgressComplete(int result) {
         onBackPressed();
     }

     @Override
     public void onProgressUpdate(int index) {
     }

     @Override
     public void onSelectionModeChange(int mode) {
     }

     @Override
     public void onSelectionChange(Path path, boolean selected) {
     }

     @Override
     public void onConfirmDialogDismissed(boolean confirmed) {
     }

     @Override
     public void onConfirmDialogShown() {
     }

     @Override
     public void onProgressStart() {
     }
 }
	/*
	* Copyright (C) 2010 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 android.app.Activity;
	import android.content.res.Configuration;
	import android.os.Bundle;
	import android.os.Handler;
	import android.os.Message;
	import android.text.format.Formatter;
	import android.view.LayoutInflater;
	import android.view.View;
	import android.view.View.OnClickListener;
	import android.widget.FrameLayout;
	import android.widget.ProgressBar;
	import android.widget.TextView;
	import android.widget.Toast;

	import com.android.gallery3d.R;
	import com.android.gallery3d.common.Utils;
	import com.android.gallery3d.data.MediaObject;
	import com.android.gallery3d.data.MediaSet;
	import com.android.gallery3d.data.Path;
	import com.android.gallery3d.glrenderer.GLCanvas;
	import com.android.gallery3d.ui.CacheStorageUsageInfo;
	import com.android.gallery3d.ui.GLRoot;
	import com.android.gallery3d.ui.GLView;
	import com.android.gallery3d.ui.ManageCacheDrawer;
	import com.android.gallery3d.ui.MenuExecutor;
	import com.android.gallery3d.ui.SelectionManager;
	import com.android.gallery3d.ui.SlotView;
	import com.android.gallery3d.ui.SynchronizedHandler;
	import com.android.gallery3d.util.Future;
	import com.android.gallery3d.util.GalleryUtils;
	import com.android.gallery3d.util.ThreadPool.Job;
	import com.android.gallery3d.util.ThreadPool.JobContext;

	import java.util.ArrayList;

	public class ManageCachePage extends ActivityState implements
	SelectionManager.SelectionListener, MenuExecutor.ProgressListener,
	EyePosition.EyePositionListener, OnClickListener {
	public static final String KEY_MEDIA_PATH = "media-path";

	@SuppressWarnings("unused")
	private static final String TAG = "ManageCachePage";

	private static final int DATA_CACHE_SIZE = 256;
	private static final int MSG_REFRESH_STORAGE_INFO = 1;
	private static final int MSG_REQUEST_LAYOUT = 2;
	private static final int PROGRESS_BAR_MAX = 10000;

	private SlotView mSlotView;
	private MediaSet mMediaSet;

	protected SelectionManager mSelectionManager;
	protected ManageCacheDrawer mSelectionDrawer;
	private AlbumSetDataLoader mAlbumSetDataAdapter;

	private EyePosition mEyePosition;

	// The eyes' position of the user, the origin is at the center of the
	// device and the unit is in pixels.
	private float mX;
	private float mY;
	private float mZ;

	private int mAlbumCountToMakeAvailableOffline;
	private View mFooterContent;
	private CacheStorageUsageInfo mCacheStorageInfo;
	private Future<Void> mUpdateStorageInfo;
	private Handler mHandler;
	private boolean mLayoutReady = false;

	@Override
	protected int getBackgroundColorId() {
	return R.color.cache_background;
	}

	private GLView mRootPane = new GLView() {
	private float mMatrix[] = new float[16];

	@Override
	protected void renderBackground(GLCanvas view) {
	view.clearBuffer(getBackgroundColor());
	}

	@Override
	protected void onLayout(
	boolean changed, int left, int top, int right, int bottom) {
	// Hack: our layout depends on other components on the screen.
	// We assume the other components will complete before we get a change
	// to run a message in main thread.
	if (!mLayoutReady) {
	mHandler.sendEmptyMessage(MSG_REQUEST_LAYOUT);
	return;
	}
	mLayoutReady = false;

	mEyePosition.resetPosition();
	int slotViewTop = mActivity.getGalleryActionBar().getHeight();
	int slotViewBottom = bottom - top;

	View footer = mActivity.findViewById(R.id.footer);
	if (footer != null) {
	int location[] = {0, 0};
	footer.getLocationOnScreen(location);
	slotViewBottom = location[1];
	}

	mSlotView.layout(0, slotViewTop, right - left, slotViewBottom);
	}

	@Override
	protected void render(GLCanvas canvas) {
	canvas.save(GLCanvas.SAVE_FLAG_MATRIX);
	GalleryUtils.setViewPointMatrix(mMatrix,
	getWidth() / 2 + mX, getHeight() / 2 + mY, mZ);
	canvas.multiplyMatrix(mMatrix, 0);
	super.render(canvas);
	canvas.restore();
	}
	};

	@Override
	public void onEyePositionChanged(float x, float y, float z) {
	mRootPane.lockRendering();
	mX = x;
	mY = y;
	mZ = z;
	mRootPane.unlockRendering();
	mRootPane.invalidate();
	}

	private void onDown(int index) {
	mSelectionDrawer.setPressedIndex(index);
	}

	private void onUp() {
	mSelectionDrawer.setPressedIndex(-1);
	}

	public void onSingleTapUp(int slotIndex) {
	MediaSet targetSet = mAlbumSetDataAdapter.getMediaSet(slotIndex);
	if (targetSet == null) return; // Content is dirty, we shall reload soon

	// ignore selection action if the target set does not support cache
	// operation (like a local album).
	if ((targetSet.getSupportedOperations()
	& MediaSet.SUPPORT_CACHE) == 0) {
	showToastForLocalAlbum();
	return;
	}

	Path path = targetSet.getPath();
	boolean isFullyCached =
	(targetSet.getCacheFlag() == MediaObject.CACHE_FLAG_FULL);
	boolean isSelected = mSelectionManager.isItemSelected(path);

	if (!isFullyCached) {
	// We only count the media sets that will be made available offline
	// in this session.
	if (isSelected) {
	--mAlbumCountToMakeAvailableOffline;
	} else {
	++mAlbumCountToMakeAvailableOffline;
	}
	}

	long sizeOfTarget = targetSet.getCacheSize();
	mCacheStorageInfo.increaseTargetCacheSize(
	(isFullyCached ^ isSelected) ? -sizeOfTarget : sizeOfTarget);
	refreshCacheStorageInfo();

	mSelectionManager.toggle(path);
	mSlotView.invalidate();
	}

	@Override
	public void onCreate(Bundle data, Bundle restoreState) {
	super.onCreate(data, restoreState);
	mCacheStorageInfo = new CacheStorageUsageInfo(mActivity);
	initializeViews();
	initializeData(data);
	mEyePosition = new EyePosition(mActivity.getAndroidContext(), this);
	mHandler = new SynchronizedHandler(mActivity.getGLRoot()) {
	@Override
	public void handleMessage(Message message) {
	switch (message.what) {
	case MSG_REFRESH_STORAGE_INFO:
	refreshCacheStorageInfo();
	break;
	case MSG_REQUEST_LAYOUT: {
	mLayoutReady = true;
	removeMessages(MSG_REQUEST_LAYOUT);
	mRootPane.requestLayout();
	break;
	}
	}
	}
	};
	}

	@Override
	public void onConfigurationChanged(Configuration config) {
	// We use different layout resources for different configs
	initializeFooterViews();
	FrameLayout layout = (FrameLayout) ((Activity) mActivity).findViewById(R.id.footer);
	if (layout.getVisibility() == View.VISIBLE) {
	layout.removeAllViews();
	layout.addView(mFooterContent);
	}
	}

	@Override
	public void onPause() {
	super.onPause();
	mAlbumSetDataAdapter.pause();
	mSelectionDrawer.pause();
	mEyePosition.pause();

	if (mUpdateStorageInfo != null) {
	mUpdateStorageInfo.cancel();
	mUpdateStorageInfo = null;
	}
	mHandler.removeMessages(MSG_REFRESH_STORAGE_INFO);

	FrameLayout layout = (FrameLayout) ((Activity) mActivity).findViewById(R.id.footer);
	layout.removeAllViews();
	layout.setVisibility(View.INVISIBLE);
	}

	private Job<Void> mUpdateStorageInfoJob = new Job<Void>() {
	@Override
	public Void run(JobContext jc) {
	mCacheStorageInfo.loadStorageInfo(jc);
	if (!jc.isCancelled()) {
	mHandler.sendEmptyMessage(MSG_REFRESH_STORAGE_INFO);
	}
	return null;
	}
	};

	@Override
	public void onResume() {
	super.onResume();
	setContentPane(mRootPane);
	mAlbumSetDataAdapter.resume();
	mSelectionDrawer.resume();
	mEyePosition.resume();
	mUpdateStorageInfo = mActivity.getThreadPool().submit(mUpdateStorageInfoJob);
	FrameLayout layout = (FrameLayout) ((Activity) mActivity).findViewById(R.id.footer);
	layout.addView(mFooterContent);
	layout.setVisibility(View.VISIBLE);
	}

	private void initializeData(Bundle data) {
	String mediaPath = data.getString(ManageCachePage.KEY_MEDIA_PATH);
	mMediaSet = mActivity.getDataManager().getMediaSet(mediaPath);
	mSelectionManager.setSourceMediaSet(mMediaSet);

	// We will always be in selection mode in this page.
	mSelectionManager.setAutoLeaveSelectionMode(false);
	mSelectionManager.enterSelectionMode();

	mAlbumSetDataAdapter = new AlbumSetDataLoader(
	mActivity, mMediaSet, DATA_CACHE_SIZE);
	mSelectionDrawer.setModel(mAlbumSetDataAdapter);
	}

	private void initializeViews() {
	Activity activity = mActivity;

	mSelectionManager = new SelectionManager(mActivity, true);
	mSelectionManager.setSelectionListener(this);

	Config.ManageCachePage config = Config.ManageCachePage.get(activity);
	mSlotView = new SlotView(mActivity, config.slotViewSpec);
	mSelectionDrawer = new ManageCacheDrawer(mActivity, mSelectionManager, mSlotView,
	config.labelSpec, config.cachePinSize, config.cachePinMargin);
	mSlotView.setSlotRenderer(mSelectionDrawer);
	mSlotView.setListener(new SlotView.SimpleListener() {
	@Override
	public void onDown(int index) {
	ManageCachePage.this.onDown(index);
	}

	@Override
	public void onUp(boolean followedByLongPress) {
	ManageCachePage.this.onUp();
	}

	@Override
	public void onSingleTapUp(int slotIndex) {
	ManageCachePage.this.onSingleTapUp(slotIndex);
	}
	});
	mRootPane.addComponent(mSlotView);
	initializeFooterViews();
	}

	private void initializeFooterViews() {
	Activity activity = mActivity;

	LayoutInflater inflater = activity.getLayoutInflater();
	mFooterContent = inflater.inflate(R.layout.manage_offline_bar, null);

	mFooterContent.findViewById(R.id.done).setOnClickListener(this);
	refreshCacheStorageInfo();
	}

	@Override
	public void onClick(View view) {
	Utils.assertTrue(view.getId() == R.id.done);
	GLRoot root = mActivity.getGLRoot();
	root.lockRenderThread();
	try {
	ArrayList<Path> ids = mSelectionManager.getSelected(false);
	if (ids.size() == 0) {
	onBackPressed();
	return;
	}
	showToast();

	MenuExecutor menuExecutor = new MenuExecutor(mActivity, mSelectionManager);
	menuExecutor.startAction(R.id.action_toggle_full_caching,
	R.string.process_caching_requests, this);
	} finally {
	root.unlockRenderThread();
	}
	}

	private void showToast() {
	if (mAlbumCountToMakeAvailableOffline > 0) {
	Activity activity = mActivity;
	Toast.makeText(activity, activity.getResources().getQuantityString(
	R.plurals.make_albums_available_offline,
	mAlbumCountToMakeAvailableOffline),
	Toast.LENGTH_SHORT).show();
	}
	}

	private void showToastForLocalAlbum() {
	Activity activity = mActivity;
	Toast.makeText(activity, activity.getResources().getString(
	R.string.try_to_set_local_album_available_offline),
	Toast.LENGTH_SHORT).show();
	}

	private void refreshCacheStorageInfo() {
	ProgressBar progressBar = (ProgressBar) mFooterContent.findViewById(R.id.progress);
	TextView status = (TextView) mFooterContent.findViewById(R.id.status);
	progressBar.setMax(PROGRESS_BAR_MAX);
	long totalBytes = mCacheStorageInfo.getTotalBytes();
	long usedBytes = mCacheStorageInfo.getUsedBytes();
	long expectedBytes = mCacheStorageInfo.getExpectedUsedBytes();
	long freeBytes = mCacheStorageInfo.getFreeBytes();

	Activity activity = mActivity;
	if (totalBytes == 0) {
	progressBar.setProgress(0);
	progressBar.setSecondaryProgress(0);

	// TODO: get the string translated
	String label = activity.getString(R.string.free_space_format, "-");
	status.setText(label);
	} else {
	progressBar.setProgress((int) (usedBytes * PROGRESS_BAR_MAX / totalBytes));
	progressBar.setSecondaryProgress(
	(int) (expectedBytes * PROGRESS_BAR_MAX / totalBytes));
	String label = activity.getString(R.string.free_space_format,
	Formatter.formatFileSize(activity, freeBytes));
	status.setText(label);
	}
	}

	@Override
	public void onProgressComplete(int result) {
	onBackPressed();
	}

	@Override
	public void onProgressUpdate(int index) {
	}

	@Override
	public void onSelectionModeChange(int mode) {
	}

	@Override
	public void onSelectionChange(Path path, boolean selected) {
	}

	@Override
	public void onConfirmDialogDismissed(boolean confirmed) {
	}

	@Override
	public void onConfirmDialogShown() {
	}

	@Override
	public void onProgressStart() {
	}
	}