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/*
* Copyright (C) 2008 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.camera;
import android.app.Activity;
import android.app.AlertDialog;
import android.content.ActivityNotFoundException;
import android.content.Context;
import android.content.DialogInterface;
import android.content.Intent;
import android.content.DialogInterface.OnClickListener;
import android.net.Uri;
import android.os.Environment;
import android.os.StatFs;
import android.provider.MediaStore;
import android.provider.MediaStore.Images;
import android.util.Log;
import android.view.Menu;
import android.view.MenuItem;
import android.view.MenuItem.OnMenuItemClickListener;
import com.android.camera.R;
import java.io.Closeable;
/**
* A utility class to handle various kinds of menu operations.
*/
public class MenuHelper {
private static final String TAG = "MenuHelper";
public static final int INCLUDE_ALL = 0xFFFFFFFF;
public static final int INCLUDE_VIEWPLAY_MENU = (1 << 0);
public static final int INCLUDE_SHARE_MENU = (1 << 1);
public static final int INCLUDE_SET_MENU = (1 << 2);
public static final int INCLUDE_CROP_MENU = (1 << 3);
public static final int INCLUDE_DELETE_MENU = (1 << 4);
public static final int INCLUDE_ROTATE_MENU = (1 << 5);
public static final int INCLUDE_DETAILS_MENU = (1 << 6);
public static final int INCLUDE_SHOWMAP_MENU = (1 << 7);
public static final int MENU_IMAGE_SHARE = 1;
public static final int MENU_IMAGE_SHOWMAP = 2;
public static final int POSITION_SWITCH_CAMERA_MODE = 1;
public static final int POSITION_GOTO_GALLERY = 2;
public static final int POSITION_SWITCH_CAMERA_ID = 3;
public static final int POSITION_SWITCH_TIME_LAPSE_MODE = 4;
public static final int NO_STORAGE_ERROR = -1;
public static final int CANNOT_STAT_ERROR = -2;
public static final String EMPTY_STRING = "";
public static final String JPEG_MIME_TYPE = "image/jpeg";
// valid range is -180f to +180f
public static final float INVALID_LATLNG = 255f;
/** Activity result code used to report crop results.
*/
public static final int RESULT_COMMON_MENU_CROP = 490;
private static final int NO_ANIMATION = 0;
public static void closeSilently(Closeable c) {
if (c != null) {
try {
c.close();
} catch (Throwable e) {
// ignore
}
}
}
public static void confirmAction(Context context, String title,
String message, final Runnable action) {
OnClickListener listener = new OnClickListener() {
public void onClick(DialogInterface dialog, int which) {
switch (which) {
case DialogInterface.BUTTON_POSITIVE:
if (action != null) action.run();
}
}
};
new AlertDialog.Builder(context)
.setIcon(android.R.drawable.ic_dialog_alert)
.setTitle(title)
.setMessage(message)
.setPositiveButton(android.R.string.ok, listener)
.setNegativeButton(android.R.string.cancel, listener)
.create()
.show();
}
static void addSwitchModeMenuItem(Menu menu, boolean switchToVideo,
final Runnable r) {
int labelId = switchToVideo
? R.string.switch_to_video_lable
: R.string.switch_to_camera_lable;
int iconId = switchToVideo
? R.drawable.ic_menu_camera_video_view
: android.R.drawable.ic_menu_camera;
MenuItem item = menu.add(Menu.NONE, Menu.NONE,
POSITION_SWITCH_CAMERA_MODE, labelId)
.setOnMenuItemClickListener(new OnMenuItemClickListener() {
public boolean onMenuItemClick(MenuItem item) {
r.run();
return true;
}
});
item.setIcon(iconId);
}
private static void startCameraActivity(Activity activity, String action) {
Intent intent = new Intent(action);
intent.addFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP);
intent.addFlags(Intent.FLAG_ACTIVITY_FORWARD_RESULT);
// Keep the camera instance for a while.
// This avoids re-opening the camera and saves time.
CameraHolder.instance().keep();
activity.startActivity(intent);
activity.overridePendingTransition(NO_ANIMATION, NO_ANIMATION);
}
public static void gotoVideoMode(Activity activity) {
startCameraActivity(activity, MediaStore.INTENT_ACTION_VIDEO_CAMERA);
}
public static void gotoCameraMode(Activity activity) {
startCameraActivity(
activity, MediaStore.INTENT_ACTION_STILL_IMAGE_CAMERA);
}
public static void gotoCameraImageGallery(Activity activity) {
gotoGallery(activity, R.string.gallery_camera_bucket_name,
ImageManager.INCLUDE_IMAGES);
}
public static void gotoCameraVideoGallery(Activity activity) {
gotoGallery(activity, R.string.gallery_camera_videos_bucket_name,
ImageManager.INCLUDE_VIDEOS);
}
private static void gotoGallery(Activity activity, int windowTitleId,
int mediaTypes) {
Uri target = Images.Media.EXTERNAL_CONTENT_URI.buildUpon()
.appendQueryParameter("bucketId",
ImageManager.CAMERA_IMAGE_BUCKET_ID).build();
Intent intent = new Intent(Intent.ACTION_VIEW, target);
intent.addFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP);
intent.putExtra("windowTitle", activity.getString(windowTitleId));
intent.putExtra("mediaTypes", mediaTypes);
try {
activity.startActivity(intent);
} catch (ActivityNotFoundException e) {
Log.e(TAG, "Could not start gallery activity", e);
}
}
public static int calculatePicturesRemaining() {
try {
if (!ImageManager.hasStorage()) {
return NO_STORAGE_ERROR;
} else {
String storageDirectory =
Environment.getExternalStorageDirectory().toString();
StatFs stat = new StatFs(storageDirectory);
final int PICTURE_BYTES = 1500000;
float remaining = ((float) stat.getAvailableBlocks()
* (float) stat.getBlockSize()) / PICTURE_BYTES;
return (int) remaining;
}
} catch (Exception ex) {
// if we can't stat the filesystem then we don't know how many
// pictures are remaining. it might be zero but just leave it
// blank since we really don't know.
Log.e(TAG, "Fail to access sdcard", ex);
return CANNOT_STAT_ERROR;
}
}
}
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