src/com/android/contacts/ContactsUtils.java - platform/packages/apps/Contacts - Git at Google

 /*
  * Copyright (C) 2009 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.contacts;

 import com.android.contacts.model.AccountType;
 import com.android.contacts.model.AccountTypeManager;
 import com.android.contacts.model.AccountWithDataSet;
 import com.android.contacts.test.NeededForTesting;
 import com.android.i18n.phonenumbers.PhoneNumberUtil;

 import android.content.Context;
 import android.content.Intent;
 import android.graphics.Rect;
 import android.location.CountryDetector;
 import android.net.Uri;
 import android.provider.ContactsContract;
 import android.provider.ContactsContract.CommonDataKinds.Im;
 import android.provider.ContactsContract.CommonDataKinds.Phone;
 import android.telephony.PhoneNumberUtils;
 import android.text.TextUtils;
 import android.view.View;
 import android.widget.TextView;

 import java.util.List;

 public class ContactsUtils {
     private static final String TAG = "ContactsUtils";
     private static final String WAIT_SYMBOL_AS_STRING = String.valueOf(PhoneNumberUtils.WAIT);


     // TODO find a proper place for the canonical version of these
     public interface ProviderNames {
         String YAHOO = "Yahoo";
         String GTALK = "GTalk";
         String MSN = "MSN";
         String ICQ = "ICQ";
         String AIM = "AIM";
         String XMPP = "XMPP";
         String JABBER = "JABBER";
         String SKYPE = "SKYPE";
         String QQ = "QQ";
     }

     /**
      * This looks up the provider name defined in
      * ProviderNames from the predefined IM protocol id.
      * This is used for interacting with the IM application.
      *
      * @param protocol the protocol ID
      * @return the provider name the IM app uses for the given protocol, or null if no
      * provider is defined for the given protocol
      * @hide
      */
     public static String lookupProviderNameFromId(int protocol) {
         switch (protocol) {
             case Im.PROTOCOL_GOOGLE_TALK:
                 return ProviderNames.GTALK;
             case Im.PROTOCOL_AIM:
                 return ProviderNames.AIM;
             case Im.PROTOCOL_MSN:
                 return ProviderNames.MSN;
             case Im.PROTOCOL_YAHOO:
                 return ProviderNames.YAHOO;
             case Im.PROTOCOL_ICQ:
                 return ProviderNames.ICQ;
             case Im.PROTOCOL_JABBER:
                 return ProviderNames.JABBER;
             case Im.PROTOCOL_SKYPE:
                 return ProviderNames.SKYPE;
             case Im.PROTOCOL_QQ:
                 return ProviderNames.QQ;
         }
         return null;
     }

     /**
      * Test if the given {@link CharSequence} contains any graphic characters,
      * first checking {@link TextUtils#isEmpty(CharSequence)} to handle null.
      */
     public static boolean isGraphic(CharSequence str) {
         return !TextUtils.isEmpty(str) && TextUtils.isGraphic(str);
     }

     /**
      * Returns true if two objects are considered equal.  Two null references are equal here.
      */
     @NeededForTesting
     public static boolean areObjectsEqual(Object a, Object b) {
         return a == b || (a != null && a.equals(b));
     }

     /**
      * Returns true if two data with mimetypes which represent values in contact entries are
      * considered equal for collapsing in the GUI. For caller-id, use
      * {@link PhoneNumberUtils#compare(Context, String, String)} instead
      */
     public static final boolean shouldCollapse(CharSequence mimetype1, CharSequence data1,
             CharSequence mimetype2, CharSequence data2) {
         // different mimetypes? don't collapse
         if (!TextUtils.equals(mimetype1, mimetype2)) return false;

         // exact same string? good, bail out early
         if (TextUtils.equals(data1, data2)) return true;

         // so if either is null, these two must be different
         if (data1 == null || data2 == null) return false;

         // if this is not about phone numbers, we know this is not a match (of course, some
         // mimetypes could have more sophisticated matching is the future, e.g. addresses)
         if (!TextUtils.equals(Phone.CONTENT_ITEM_TYPE, mimetype1)) return false;

         // Now do the full phone number thing. split into parts, seperated by waiting symbol
         // and compare them individually
         final String[] dataParts1 = data1.toString().split(WAIT_SYMBOL_AS_STRING);
         final String[] dataParts2 = data2.toString().split(WAIT_SYMBOL_AS_STRING);
         if (dataParts1.length != dataParts2.length) return false;
         final PhoneNumberUtil util = PhoneNumberUtil.getInstance();
         for (int i = 0; i < dataParts1.length; i++) {
             final String dataPart1 = dataParts1[i];
             final String dataPart2 = dataParts2[i];

             // substrings equal? shortcut, don't parse
             if (TextUtils.equals(dataPart1, dataPart2)) continue;

             // do a full parse of the numbers
             switch (util.isNumberMatch(dataPart1, dataPart2)) {
                 case NOT_A_NUMBER:
                     // don't understand the numbers? let's play it safe
                     return false;
                 case NO_MATCH:
                     return false;
                 case EXACT_MATCH:
                 case SHORT_NSN_MATCH:
                 case NSN_MATCH:
                     break;
                 default:
                     throw new IllegalStateException("Unknown result value from phone number " +
                             "library");
             }
         }
         return true;
     }

     /**
      * Returns true if two {@link Intent}s are both null, or have the same action.
      */
     public static final boolean areIntentActionEqual(Intent a, Intent b) {
         if (a == b) {
             return true;
         }
         if (a == null || b == null) {
             return false;
         }
         return TextUtils.equals(a.getAction(), b.getAction());
     }

     /**
      * @return The ISO 3166-1 two letters country code of the country the user
      *         is in.
      */
     public static final String getCurrentCountryIso(Context context) {
         CountryDetector detector =
                 (CountryDetector) context.getSystemService(Context.COUNTRY_DETECTOR);
         return detector.detectCountry().getCountryIso();
     }

     public static boolean areContactWritableAccountsAvailable(Context context) {
         final List<AccountWithDataSet> accounts =
                 AccountTypeManager.getInstance(context).getAccounts(true /* writeable */);
         return !accounts.isEmpty();
     }

     public static boolean areGroupWritableAccountsAvailable(Context context) {
         final List<AccountWithDataSet> accounts =
                 AccountTypeManager.getInstance(context).getGroupWritableAccounts();
         return !accounts.isEmpty();
     }

     /**
      * Returns the intent to launch for the given invitable account type and contact lookup URI.
      * This will return null if the account type is not invitable (i.e. there is no
      * {@link AccountType#getInviteContactActivityClassName()} or
      * {@link AccountType#resPackageName}).
      */
     public static Intent getInvitableIntent(AccountType accountType, Uri lookupUri) {
         String resPackageName = accountType.resPackageName;
         String className = accountType.getInviteContactActivityClassName();
         if (TextUtils.isEmpty(resPackageName) || TextUtils.isEmpty(className)) {
             return null;
         }
         Intent intent = new Intent();
         intent.setClassName(resPackageName, className);

         intent.setAction(ContactsContract.Intents.INVITE_CONTACT);

         // Data is the lookup URI.
         intent.setData(lookupUri);
         return intent;
     }

     /**
      * Returns a header view based on the R.layout.list_separator, where the
      * containing {@link TextView} is set using the given textResourceId.
      */
     public static View createHeaderView(Context context, int textResourceId) {
         View view = View.inflate(context, R.layout.list_separator, null);
         TextView textView = (TextView) view.findViewById(R.id.title);
         textView.setText(context.getString(textResourceId));
         return view;
     }

     /**
      * Returns the {@link Rect} with left, top, right, and bottom coordinates
      * that are equivalent to the given {@link View}'s bounds. This is equivalent to how the
      * target {@link Rect} is calculated in {@link QuickContact#showQuickContact}.
      */
     public static Rect getTargetRectFromView(Context context, View view) {
         final float appScale = context.getResources().getCompatibilityInfo().applicationScale;
         final int[] pos = new int[2];
         view.getLocationOnScreen(pos);

         final Rect rect = new Rect();
         rect.left = (int) (pos[0] * appScale + 0.5f);
         rect.top = (int) (pos[1] * appScale + 0.5f);
         rect.right = (int) ((pos[0] + view.getWidth()) * appScale + 0.5f);
         rect.bottom = (int) ((pos[1] + view.getHeight()) * appScale + 0.5f);
         return rect;
     }
 }
	/*
	* Copyright (C) 2009 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.contacts;

	import com.android.contacts.model.AccountType;
	import com.android.contacts.model.AccountTypeManager;
	import com.android.contacts.model.AccountWithDataSet;
	import com.android.contacts.test.NeededForTesting;
	import com.android.i18n.phonenumbers.PhoneNumberUtil;

	import android.content.Context;
	import android.content.Intent;
	import android.graphics.Rect;
	import android.location.CountryDetector;
	import android.net.Uri;
	import android.provider.ContactsContract;
	import android.provider.ContactsContract.CommonDataKinds.Im;
	import android.provider.ContactsContract.CommonDataKinds.Phone;
	import android.telephony.PhoneNumberUtils;
	import android.text.TextUtils;
	import android.view.View;
	import android.widget.TextView;

	import java.util.List;

	public class ContactsUtils {
	private static final String TAG = "ContactsUtils";
	private static final String WAIT_SYMBOL_AS_STRING = String.valueOf(PhoneNumberUtils.WAIT);


	// TODO find a proper place for the canonical version of these
	public interface ProviderNames {
	String YAHOO = "Yahoo";
	String GTALK = "GTalk";
	String MSN = "MSN";
	String ICQ = "ICQ";
	String AIM = "AIM";
	String XMPP = "XMPP";
	String JABBER = "JABBER";
	String SKYPE = "SKYPE";
	String QQ = "QQ";
	}

	/**
	* This looks up the provider name defined in
	* ProviderNames from the predefined IM protocol id.
	* This is used for interacting with the IM application.
	*
	* @param protocol the protocol ID
	* @return the provider name the IM app uses for the given protocol, or null if no
	* provider is defined for the given protocol
	* @hide
	*/
	public static String lookupProviderNameFromId(int protocol) {
	switch (protocol) {
	case Im.PROTOCOL_GOOGLE_TALK:
	return ProviderNames.GTALK;
	case Im.PROTOCOL_AIM:
	return ProviderNames.AIM;
	case Im.PROTOCOL_MSN:
	return ProviderNames.MSN;
	case Im.PROTOCOL_YAHOO:
	return ProviderNames.YAHOO;
	case Im.PROTOCOL_ICQ:
	return ProviderNames.ICQ;
	case Im.PROTOCOL_JABBER:
	return ProviderNames.JABBER;
	case Im.PROTOCOL_SKYPE:
	return ProviderNames.SKYPE;
	case Im.PROTOCOL_QQ:
	return ProviderNames.QQ;
	}
	return null;
	}

	/**
	* Test if the given {@link CharSequence} contains any graphic characters,
	* first checking {@link TextUtils#isEmpty(CharSequence)} to handle null.
	*/
	public static boolean isGraphic(CharSequence str) {
	return !TextUtils.isEmpty(str) && TextUtils.isGraphic(str);
	}

	/**
	* Returns true if two objects are considered equal. Two null references are equal here.
	*/
	@NeededForTesting
	public static boolean areObjectsEqual(Object a, Object b) {
	return a == b \|\| (a != null && a.equals(b));
	}

	/**
	* Returns true if two data with mimetypes which represent values in contact entries are
	* considered equal for collapsing in the GUI. For caller-id, use
	* {@link PhoneNumberUtils#compare(Context, String, String)} instead
	*/
	public static final boolean shouldCollapse(CharSequence mimetype1, CharSequence data1,
	CharSequence mimetype2, CharSequence data2) {
	// different mimetypes? don't collapse
	if (!TextUtils.equals(mimetype1, mimetype2)) return false;

	// exact same string? good, bail out early
	if (TextUtils.equals(data1, data2)) return true;

	// so if either is null, these two must be different
	if (data1 == null \|\| data2 == null) return false;

	// if this is not about phone numbers, we know this is not a match (of course, some
	// mimetypes could have more sophisticated matching is the future, e.g. addresses)
	if (!TextUtils.equals(Phone.CONTENT_ITEM_TYPE, mimetype1)) return false;

	// Now do the full phone number thing. split into parts, seperated by waiting symbol
	// and compare them individually
	final String[] dataParts1 = data1.toString().split(WAIT_SYMBOL_AS_STRING);
	final String[] dataParts2 = data2.toString().split(WAIT_SYMBOL_AS_STRING);
	if (dataParts1.length != dataParts2.length) return false;
	final PhoneNumberUtil util = PhoneNumberUtil.getInstance();
	for (int i = 0; i < dataParts1.length; i++) {
	final String dataPart1 = dataParts1[i];
	final String dataPart2 = dataParts2[i];

	// substrings equal? shortcut, don't parse
	if (TextUtils.equals(dataPart1, dataPart2)) continue;

	// do a full parse of the numbers
	switch (util.isNumberMatch(dataPart1, dataPart2)) {
	case NOT_A_NUMBER:
	// don't understand the numbers? let's play it safe
	return false;
	case NO_MATCH:
	return false;
	case EXACT_MATCH:
	case SHORT_NSN_MATCH:
	case NSN_MATCH:
	break;
	default:
	throw new IllegalStateException("Unknown result value from phone number " +
	"library");
	}
	}
	return true;
	}

	/**
	* Returns true if two {@link Intent}s are both null, or have the same action.
	*/
	public static final boolean areIntentActionEqual(Intent a, Intent b) {
	if (a == b) {
	return true;
	}
	if (a == null \|\| b == null) {
	return false;
	}
	return TextUtils.equals(a.getAction(), b.getAction());
	}

	/**
	* @return The ISO 3166-1 two letters country code of the country the user
	* is in.
	*/
	public static final String getCurrentCountryIso(Context context) {
	CountryDetector detector =
	(CountryDetector) context.getSystemService(Context.COUNTRY_DETECTOR);
	return detector.detectCountry().getCountryIso();
	}

	public static boolean areContactWritableAccountsAvailable(Context context) {
	final List<AccountWithDataSet> accounts =
	AccountTypeManager.getInstance(context).getAccounts(true /* writeable */);
	return !accounts.isEmpty();
	}

	public static boolean areGroupWritableAccountsAvailable(Context context) {
	final List<AccountWithDataSet> accounts =
	AccountTypeManager.getInstance(context).getGroupWritableAccounts();
	return !accounts.isEmpty();
	}

	/**
	* Returns the intent to launch for the given invitable account type and contact lookup URI.
	* This will return null if the account type is not invitable (i.e. there is no
	* {@link AccountType#getInviteContactActivityClassName()} or
	* {@link AccountType#resPackageName}).
	*/
	public static Intent getInvitableIntent(AccountType accountType, Uri lookupUri) {
	String resPackageName = accountType.resPackageName;
	String className = accountType.getInviteContactActivityClassName();
	if (TextUtils.isEmpty(resPackageName) \|\| TextUtils.isEmpty(className)) {
	return null;
	}
	Intent intent = new Intent();
	intent.setClassName(resPackageName, className);

	intent.setAction(ContactsContract.Intents.INVITE_CONTACT);

	// Data is the lookup URI.
	intent.setData(lookupUri);
	return intent;
	}

	/**
	* Returns a header view based on the R.layout.list_separator, where the
	* containing {@link TextView} is set using the given textResourceId.
	*/
	public static View createHeaderView(Context context, int textResourceId) {
	View view = View.inflate(context, R.layout.list_separator, null);
	TextView textView = (TextView) view.findViewById(R.id.title);
	textView.setText(context.getString(textResourceId));
	return view;
	}

	/**
	* Returns the {@link Rect} with left, top, right, and bottom coordinates
	* that are equivalent to the given {@link View}'s bounds. This is equivalent to how the
	* target {@link Rect} is calculated in {@link QuickContact#showQuickContact}.
	*/
	public static Rect getTargetRectFromView(Context context, View view) {
	final float appScale = context.getResources().getCompatibilityInfo().applicationScale;
	final int[] pos = new int[2];
	view.getLocationOnScreen(pos);

	final Rect rect = new Rect();
	rect.left = (int) (pos[0] * appScale + 0.5f);
	rect.top = (int) (pos[1] * appScale + 0.5f);
	rect.right = (int) ((pos[0] + view.getWidth()) * appScale + 0.5f);
	rect.bottom = (int) ((pos[1] + view.getHeight()) * appScale + 0.5f);
	return rect;
	}
	}