src/com/android/tv/customization/TvCustomizationManager.java - platform/packages/apps/TV - Git at Google

 /*
  * Copyright (C) 2015 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.tv.customization;

 import android.content.Context;
 import android.content.Intent;
 import android.content.pm.PackageInfo;
 import android.content.pm.PackageManager;
 import android.content.pm.PackageManager.NameNotFoundException;
 import android.content.pm.ResolveInfo;
 import android.content.res.Resources;
 import android.graphics.drawable.Drawable;
 import android.support.annotation.IntDef;
 import android.text.TextUtils;
 import android.util.Log;

 import java.lang.annotation.Retention;
 import java.lang.annotation.RetentionPolicy;
 import java.util.ArrayList;
 import java.util.Collections;
 import java.util.HashMap;
 import java.util.List;
 import java.util.Map;

 public class TvCustomizationManager {
     private static final String TAG = "TvCustomizationManager";
     private static final boolean DEBUG = false;

     private static final String[] CUSTOMIZE_PERMISSIONS = {
             "com.android.tv.permission.CUSTOMIZE_TV_APP"
     };

     private static final String CATEGORY_TV_CUSTOMIZATION =
             "com.android.tv.category";

     /**
      * Row IDs to share customized actions.
      * Only rows listed below can have customized action.
      */
     public static final String ID_OPTIONS_ROW = "options_row";
     public static final String ID_PARTNER_ROW = "partner_row";

     @IntDef({TRICKPLAY_MODE_ENABLED, TRICKPLAY_MODE_DISABLED, TRICKPLAY_MODE_USE_EXTERNAL_STORAGE})
     @Retention(RetentionPolicy.SOURCE)
     public @interface TRICKPLAY_MODE {}
     public static final int TRICKPLAY_MODE_ENABLED = 0;
     public static final int TRICKPLAY_MODE_DISABLED = 1;
     public static final int TRICKPLAY_MODE_USE_EXTERNAL_STORAGE = 2;

     private static final String[] TRICKPLAY_MODE_STRINGS = {
         "enabled",
         "disabled",
         "use_external_storage_only"
     };

     private static final HashMap<String, String> INTENT_CATEGORY_TO_ROW_ID;
     static {
         INTENT_CATEGORY_TO_ROW_ID = new HashMap<>();
         INTENT_CATEGORY_TO_ROW_ID.put(CATEGORY_TV_CUSTOMIZATION + ".OPTIONS_ROW", ID_OPTIONS_ROW);
         INTENT_CATEGORY_TO_ROW_ID.put(CATEGORY_TV_CUSTOMIZATION + ".PARTNER_ROW", ID_PARTNER_ROW);
     }

     private static final String RES_ID_PARTNER_ROW_TITLE = "partner_row_title";
     private static final String RES_ID_HAS_LINUX_DVB_BUILT_IN_TUNER =
             "has_linux_dvb_built_in_tuner";
     private static final String RES_ID_TRICKPLAY_MODE = "trickplay_mode";

     private static final String RES_TYPE_STRING = "string";
     private static final String RES_TYPE_BOOLEAN = "bool";

     private static String sCustomizationPackage;
     private static Boolean sHasLinuxDvbBuiltInTuner;
     private static @TRICKPLAY_MODE Integer sTrickplayMode;

     private final Context mContext;
     private boolean mInitialized;

     private String mPartnerRowTitle;
     private final Map<String, List<CustomAction>> mRowIdToCustomActionsMap = new HashMap<>();

     public TvCustomizationManager(Context context) {
         mContext = context;
         mInitialized = false;
     }

     /**
      * Returns {@code true} if there's a customization package installed and it specifies built-in
      * tuner devices are available. The built-in tuner should support DVB API to be recognized by
      * Live TV.
      */
     public static boolean hasLinuxDvbBuiltInTuner(Context context) {
         if (sHasLinuxDvbBuiltInTuner == null) {
             if (TextUtils.isEmpty(getCustomizationPackageName(context))) {
                 sHasLinuxDvbBuiltInTuner = false;
             } else {
                 try {
                     Resources res = context.getPackageManager()
                             .getResourcesForApplication(sCustomizationPackage);
                     int resId = res.getIdentifier(RES_ID_HAS_LINUX_DVB_BUILT_IN_TUNER,
                             RES_TYPE_BOOLEAN, sCustomizationPackage);
                     sHasLinuxDvbBuiltInTuner = resId != 0 && res.getBoolean(resId);
                 } catch (NameNotFoundException e) {
                     sHasLinuxDvbBuiltInTuner = false;
                 }
             }
         }
         return sHasLinuxDvbBuiltInTuner;
     }

     public static @TRICKPLAY_MODE int getTrickplayMode(Context context) {
         if (sTrickplayMode == null) {
             if (TextUtils.isEmpty(getCustomizationPackageName(context))) {
                 sTrickplayMode = TRICKPLAY_MODE_ENABLED;
             } else {
                 try {
                     String customization = null;
                     Resources res = context.getPackageManager()
                             .getResourcesForApplication(sCustomizationPackage);
                     int resId = res.getIdentifier(RES_ID_TRICKPLAY_MODE,
                             RES_TYPE_STRING, sCustomizationPackage);
                     customization = resId == 0 ? null : res.getString(resId);
                     sTrickplayMode = TRICKPLAY_MODE_ENABLED;
                     if (customization != null) {
                         for (int i = 0; i < TRICKPLAY_MODE_STRINGS.length; ++i) {
                             if (TRICKPLAY_MODE_STRINGS[i].equalsIgnoreCase(customization)) {
                                 sTrickplayMode = i;
                                 break;
                             }
                         }
                     }
                 } catch (NameNotFoundException e) {
                     sTrickplayMode = TRICKPLAY_MODE_ENABLED;
                 }
             }
         }
         return sTrickplayMode;
     }

     private static String getCustomizationPackageName(Context context) {
         if (sCustomizationPackage == null) {
             List<PackageInfo> packageInfos = context.getPackageManager()
                     .getPackagesHoldingPermissions(CUSTOMIZE_PERMISSIONS, 0);
             sCustomizationPackage = packageInfos.size() == 0 ? "" : packageInfos.get(0).packageName;
         }
         return sCustomizationPackage;
     }

     /**
      * Initialize TV customization options.
      * Run this API only on the main thread.
      */
     public void initialize() {
         if (mInitialized) {
             return;
         }
         mInitialized = true;
         if (!TextUtils.isEmpty(getCustomizationPackageName(mContext))) {
             buildCustomActions();
             buildPartnerRow();
         }
     }

     private void buildCustomActions() {
         mRowIdToCustomActionsMap.clear();
         PackageManager pm = mContext.getPackageManager();
         for (String intentCategory : INTENT_CATEGORY_TO_ROW_ID.keySet()) {
             Intent customOptionIntent = new Intent(Intent.ACTION_MAIN);
             customOptionIntent.addCategory(intentCategory);

             List<ResolveInfo> activities = pm.queryIntentActivities(customOptionIntent,
                     PackageManager.GET_RECEIVERS | PackageManager.GET_RESOLVED_FILTER
                             | PackageManager.GET_META_DATA);
             for (ResolveInfo info : activities) {
                 String packageName = info.activityInfo.packageName;
                 if (!TextUtils.equals(packageName, sCustomizationPackage)) {
                     Log.w(TAG, "A customization package " + sCustomizationPackage
                             + " already exist. Ignoring " + packageName);
                     continue;
                 }

                 int position = info.filter.getPriority();
                 String title = info.loadLabel(pm).toString();
                 Drawable drawable = info.loadIcon(pm);
                 Intent intent = new Intent(Intent.ACTION_MAIN);
                 intent.addCategory(intentCategory);
                 intent.setClassName(sCustomizationPackage, info.activityInfo.name);

                 String rowId = INTENT_CATEGORY_TO_ROW_ID.get(intentCategory);
                 List<CustomAction> actions = mRowIdToCustomActionsMap.get(rowId);
                 if (actions == null) {
                     actions = new ArrayList<>();
                     mRowIdToCustomActionsMap.put(rowId, actions);
                 }
                 actions.add(new CustomAction(position, title, drawable, intent));
             }
         }
         // Sort items by position
         for (List<CustomAction> actions : mRowIdToCustomActionsMap.values()) {
             Collections.sort(actions);
         }

         if (DEBUG) {
             Log.d(TAG, "Dumping custom actions");
             for (String id : mRowIdToCustomActionsMap.keySet()) {
                 for (CustomAction action : mRowIdToCustomActionsMap.get(id)) {
                     Log.d(TAG, "Custom row rowId=" + id + " title=" + action.getTitle()
                         + " class=" + action.getIntent());
                 }
             }
             Log.d(TAG, "Dumping custom actions - end of dump");
         }
     }

     /**
      * Returns custom actions for given row id.
      *
      * Row ID is one of ID_OPTIONS_ROW or ID_PARTNER_ROW.
      */
     public List<CustomAction> getCustomActions(String rowId) {
         return mRowIdToCustomActionsMap.get(rowId);
     }

     private void buildPartnerRow() {
         mPartnerRowTitle = null;
         Resources res;
         try {
             res = mContext.getPackageManager()
                     .getResourcesForApplication(sCustomizationPackage);
         } catch (NameNotFoundException e) {
             Log.w(TAG, "Could not get resources for package " + sCustomizationPackage);
             return;
         }
         int resId = res.getIdentifier(
                 RES_ID_PARTNER_ROW_TITLE, RES_TYPE_STRING, sCustomizationPackage);
         if (resId != 0) {
             mPartnerRowTitle = res.getString(resId);
         }
         if (DEBUG) Log.d(TAG, "Partner row title [" + mPartnerRowTitle + "]");
     }

     /**
      * Returns partner row title.
      */
     public String getPartnerRowTitle() {
         return mPartnerRowTitle;
     }
 }
	/*
	* Copyright (C) 2015 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.tv.customization;

	import android.content.Context;
	import android.content.Intent;
	import android.content.pm.PackageInfo;
	import android.content.pm.PackageManager;
	import android.content.pm.PackageManager.NameNotFoundException;
	import android.content.pm.ResolveInfo;
	import android.content.res.Resources;
	import android.graphics.drawable.Drawable;
	import android.support.annotation.IntDef;
	import android.text.TextUtils;
	import android.util.Log;

	import java.lang.annotation.Retention;
	import java.lang.annotation.RetentionPolicy;
	import java.util.ArrayList;
	import java.util.Collections;
	import java.util.HashMap;
	import java.util.List;
	import java.util.Map;

	public class TvCustomizationManager {
	private static final String TAG = "TvCustomizationManager";
	private static final boolean DEBUG = false;

	private static final String[] CUSTOMIZE_PERMISSIONS = {
	"com.android.tv.permission.CUSTOMIZE_TV_APP"
	};

	private static final String CATEGORY_TV_CUSTOMIZATION =
	"com.android.tv.category";

	/**
	* Row IDs to share customized actions.
	* Only rows listed below can have customized action.
	*/
	public static final String ID_OPTIONS_ROW = "options_row";
	public static final String ID_PARTNER_ROW = "partner_row";

	@IntDef({TRICKPLAY_MODE_ENABLED, TRICKPLAY_MODE_DISABLED, TRICKPLAY_MODE_USE_EXTERNAL_STORAGE})
	@Retention(RetentionPolicy.SOURCE)
	public @interface TRICKPLAY_MODE {}
	public static final int TRICKPLAY_MODE_ENABLED = 0;
	public static final int TRICKPLAY_MODE_DISABLED = 1;
	public static final int TRICKPLAY_MODE_USE_EXTERNAL_STORAGE = 2;

	private static final String[] TRICKPLAY_MODE_STRINGS = {
	"enabled",
	"disabled",
	"use_external_storage_only"
	};

	private static final HashMap<String, String> INTENT_CATEGORY_TO_ROW_ID;
	static {
	INTENT_CATEGORY_TO_ROW_ID = new HashMap<>();
	INTENT_CATEGORY_TO_ROW_ID.put(CATEGORY_TV_CUSTOMIZATION + ".OPTIONS_ROW", ID_OPTIONS_ROW);
	INTENT_CATEGORY_TO_ROW_ID.put(CATEGORY_TV_CUSTOMIZATION + ".PARTNER_ROW", ID_PARTNER_ROW);
	}

	private static final String RES_ID_PARTNER_ROW_TITLE = "partner_row_title";
	private static final String RES_ID_HAS_LINUX_DVB_BUILT_IN_TUNER =
	"has_linux_dvb_built_in_tuner";
	private static final String RES_ID_TRICKPLAY_MODE = "trickplay_mode";

	private static final String RES_TYPE_STRING = "string";
	private static final String RES_TYPE_BOOLEAN = "bool";

	private static String sCustomizationPackage;
	private static Boolean sHasLinuxDvbBuiltInTuner;
	private static @TRICKPLAY_MODE Integer sTrickplayMode;

	private final Context mContext;
	private boolean mInitialized;

	private String mPartnerRowTitle;
	private final Map<String, List<CustomAction>> mRowIdToCustomActionsMap = new HashMap<>();

	public TvCustomizationManager(Context context) {
	mContext = context;
	mInitialized = false;
	}

	/**
	* Returns {@code true} if there's a customization package installed and it specifies built-in
	* tuner devices are available. The built-in tuner should support DVB API to be recognized by
	* Live TV.
	*/
	public static boolean hasLinuxDvbBuiltInTuner(Context context) {
	if (sHasLinuxDvbBuiltInTuner == null) {
	if (TextUtils.isEmpty(getCustomizationPackageName(context))) {
	sHasLinuxDvbBuiltInTuner = false;
	} else {
	try {
	Resources res = context.getPackageManager()
	.getResourcesForApplication(sCustomizationPackage);
	int resId = res.getIdentifier(RES_ID_HAS_LINUX_DVB_BUILT_IN_TUNER,
	RES_TYPE_BOOLEAN, sCustomizationPackage);
	sHasLinuxDvbBuiltInTuner = resId != 0 && res.getBoolean(resId);
	} catch (NameNotFoundException e) {
	sHasLinuxDvbBuiltInTuner = false;
	}
	}
	}
	return sHasLinuxDvbBuiltInTuner;
	}

	public static @TRICKPLAY_MODE int getTrickplayMode(Context context) {
	if (sTrickplayMode == null) {
	if (TextUtils.isEmpty(getCustomizationPackageName(context))) {
	sTrickplayMode = TRICKPLAY_MODE_ENABLED;
	} else {
	try {
	String customization = null;
	Resources res = context.getPackageManager()
	.getResourcesForApplication(sCustomizationPackage);
	int resId = res.getIdentifier(RES_ID_TRICKPLAY_MODE,
	RES_TYPE_STRING, sCustomizationPackage);
	customization = resId == 0 ? null : res.getString(resId);
	sTrickplayMode = TRICKPLAY_MODE_ENABLED;
	if (customization != null) {
	for (int i = 0; i < TRICKPLAY_MODE_STRINGS.length; ++i) {
	if (TRICKPLAY_MODE_STRINGS[i].equalsIgnoreCase(customization)) {
	sTrickplayMode = i;
	break;
	}
	}
	}
	} catch (NameNotFoundException e) {
	sTrickplayMode = TRICKPLAY_MODE_ENABLED;
	}
	}
	}
	return sTrickplayMode;
	}

	private static String getCustomizationPackageName(Context context) {
	if (sCustomizationPackage == null) {
	List<PackageInfo> packageInfos = context.getPackageManager()
	.getPackagesHoldingPermissions(CUSTOMIZE_PERMISSIONS, 0);
	sCustomizationPackage = packageInfos.size() == 0 ? "" : packageInfos.get(0).packageName;
	}
	return sCustomizationPackage;
	}

	/**
	* Initialize TV customization options.
	* Run this API only on the main thread.
	*/
	public void initialize() {
	if (mInitialized) {
	return;
	}
	mInitialized = true;
	if (!TextUtils.isEmpty(getCustomizationPackageName(mContext))) {
	buildCustomActions();
	buildPartnerRow();
	}
	}

	private void buildCustomActions() {
	mRowIdToCustomActionsMap.clear();
	PackageManager pm = mContext.getPackageManager();
	for (String intentCategory : INTENT_CATEGORY_TO_ROW_ID.keySet()) {
	Intent customOptionIntent = new Intent(Intent.ACTION_MAIN);
	customOptionIntent.addCategory(intentCategory);

	List<ResolveInfo> activities = pm.queryIntentActivities(customOptionIntent,
	PackageManager.GET_RECEIVERS \| PackageManager.GET_RESOLVED_FILTER
	\| PackageManager.GET_META_DATA);
	for (ResolveInfo info : activities) {
	String packageName = info.activityInfo.packageName;
	if (!TextUtils.equals(packageName, sCustomizationPackage)) {
	Log.w(TAG, "A customization package " + sCustomizationPackage
	+ " already exist. Ignoring " + packageName);
	continue;
	}

	int position = info.filter.getPriority();
	String title = info.loadLabel(pm).toString();
	Drawable drawable = info.loadIcon(pm);
	Intent intent = new Intent(Intent.ACTION_MAIN);
	intent.addCategory(intentCategory);
	intent.setClassName(sCustomizationPackage, info.activityInfo.name);

	String rowId = INTENT_CATEGORY_TO_ROW_ID.get(intentCategory);
	List<CustomAction> actions = mRowIdToCustomActionsMap.get(rowId);
	if (actions == null) {
	actions = new ArrayList<>();
	mRowIdToCustomActionsMap.put(rowId, actions);
	}
	actions.add(new CustomAction(position, title, drawable, intent));
	}
	}
	// Sort items by position
	for (List<CustomAction> actions : mRowIdToCustomActionsMap.values()) {
	Collections.sort(actions);
	}

	if (DEBUG) {
	Log.d(TAG, "Dumping custom actions");
	for (String id : mRowIdToCustomActionsMap.keySet()) {
	for (CustomAction action : mRowIdToCustomActionsMap.get(id)) {
	Log.d(TAG, "Custom row rowId=" + id + " title=" + action.getTitle()
	+ " class=" + action.getIntent());
	}
	}
	Log.d(TAG, "Dumping custom actions - end of dump");
	}
	}

	/**
	* Returns custom actions for given row id.
	*
	* Row ID is one of ID_OPTIONS_ROW or ID_PARTNER_ROW.
	*/
	public List<CustomAction> getCustomActions(String rowId) {
	return mRowIdToCustomActionsMap.get(rowId);
	}

	private void buildPartnerRow() {
	mPartnerRowTitle = null;
	Resources res;
	try {
	res = mContext.getPackageManager()
	.getResourcesForApplication(sCustomizationPackage);
	} catch (NameNotFoundException e) {
	Log.w(TAG, "Could not get resources for package " + sCustomizationPackage);
	return;
	}
	int resId = res.getIdentifier(
	RES_ID_PARTNER_ROW_TITLE, RES_TYPE_STRING, sCustomizationPackage);
	if (resId != 0) {
	mPartnerRowTitle = res.getString(resId);
	}
	if (DEBUG) Log.d(TAG, "Partner row title [" + mPartnerRowTitle + "]");
	}

	/**
	* Returns partner row title.
	*/
	public String getPartnerRowTitle() {
	return mPartnerRowTitle;
	}
	}