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/*
* Copyright (C) 2012 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.common;
import android.content.Context;
import android.content.Intent;
import android.content.pm.PackageManager;
public class LightCycleHelper {
public static final String LIGHTCYCLE_PACKAGE =
"com.google.android.apps.lightcycle";
public static final String LIGHTCYCLE_CAPTURE_CLASS =
"com.google.android.apps.lightcycle.PanoramaCaptureActivity";
public static final String LIGHTCYCLE_VIEW_CLASS =
"com.google.android.apps.lightcycle.PanoramaViewActivity";
public static final String EXTRA_OUTPUT_DIR = "output_dir";
private static boolean sUpdated;
private static boolean sHasViewActivity;
private static boolean sHasCaptureActivity;
private static boolean hasLightCycleActivity(PackageManager pm, String activityClass) {
Intent it = new Intent();
it.setClassName(LIGHTCYCLE_PACKAGE, activityClass);
return (pm.resolveActivity(it, 0) != null);
}
private static void update(PackageManager pm) {
sUpdated = true;
sHasViewActivity = hasLightCycleActivity(pm, LIGHTCYCLE_VIEW_CLASS);
sHasCaptureActivity = hasLightCycleActivity(pm, LIGHTCYCLE_CAPTURE_CLASS);
}
public synchronized static boolean hasLightCycleView(PackageManager pm) {
if (!sUpdated) {
update(pm);
}
return sHasViewActivity;
}
public synchronized static boolean hasLightCycleCapture(PackageManager pm) {
if (!sUpdated) {
update(pm);
}
return sHasCaptureActivity;
}
public synchronized static void onPackageAdded(Context context, String packageName) {
if (LIGHTCYCLE_PACKAGE.equals(packageName)) {
update(context.getPackageManager());
}
}
public synchronized static void onPackageRemoved(Context context, String packageName) {
if (LIGHTCYCLE_PACKAGE.equals(packageName)) {
update(context.getPackageManager());
}
}
public synchronized static void onPackageChanged(Context context, String packageName) {
if (LIGHTCYCLE_PACKAGE.equals(packageName)) {
update(context.getPackageManager());
}
}
}
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