src/com/android/emergency/preferences/ContactPreference.java - platform/packages/apps/EmergencyInfo - Git at Google

 /*
  * Copyright (C) 2016 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.emergency.preferences;

 import android.app.AlertDialog;
 import android.content.ActivityNotFoundException;
 import android.content.ComponentName;
 import android.content.Context;
 import android.content.DialogInterface;
 import android.content.Intent;
 import android.content.pm.PackageManager;
 import android.content.pm.ResolveInfo;
 import android.graphics.drawable.Drawable;
 import android.net.Uri;
 import android.os.Bundle;
 import android.os.Parcel;
 import android.os.Parcelable;
 import androidx.annotation.NonNull;
 import androidx.annotation.Nullable;
 import androidx.preference.Preference;
 import androidx.preference.PreferenceViewHolder;
 import android.telecom.TelecomManager;
 import android.text.BidiFormatter;
 import android.text.TextDirectionHeuristics;
 import android.util.AttributeSet;
 import android.util.Log;
 import android.view.View;
 import android.widget.ImageView;
 import android.widget.Toast;

 import com.android.emergency.CircleFramedDrawable;
 import com.android.emergency.EmergencyContactManager;
 import com.android.emergency.R;
 import com.android.internal.annotations.VisibleForTesting;
 import com.android.internal.logging.MetricsLogger;
 import com.android.internal.logging.nano.MetricsProto.MetricsEvent;

 import java.util.List;


 /**
  * A {@link Preference} to display or call a contact using the specified URI string.
  */
 public class ContactPreference extends Preference {

     private static final String TAG = "ContactPreference";

     static final ContactFactory DEFAULT_CONTACT_FACTORY = new ContactFactory() {
         @Override
         public EmergencyContactManager.Contact getContact(Context context, Uri phoneUri) {
             return EmergencyContactManager.getContact(context, phoneUri);
         }
     };

     private final ContactFactory mContactFactory;
     private EmergencyContactManager.Contact mContact;
     @Nullable private RemoveContactPreferenceListener mRemoveContactPreferenceListener;
     @Nullable private AlertDialog mRemoveContactDialog;

     /**
      * Listener for removing a contact.
      */
     public interface RemoveContactPreferenceListener {
         /**
          * Callback to remove a contact preference.
          */
         void onRemoveContactPreference(ContactPreference preference);
     }

     /**
      * Interface for getting a contact for a phone number Uri.
      */
     public interface ContactFactory {
         /**
          * Gets a {@link EmergencyContactManager.Contact} for a phone {@link Uri}.
          *
          * @param context The context to use.
          * @param phoneUri The phone uri.
          * @return a contact for the given phone uri.
          */
         EmergencyContactManager.Contact getContact(Context context, Uri phoneUri);
     }

     public ContactPreference(Context context, AttributeSet attributes) {
         super(context, attributes);
         mContactFactory = DEFAULT_CONTACT_FACTORY;
     }

     /**
      * Instantiates a ContactPreference that displays an emergency contact, taking in a Context and
      * the Uri.
      */
     public ContactPreference(Context context, @NonNull Uri phoneUri) {
         this(context, phoneUri, DEFAULT_CONTACT_FACTORY);
     }

     @VisibleForTesting
     ContactPreference(Context context, @NonNull Uri phoneUri,
             @NonNull ContactFactory contactFactory) {
         super(context);
         mContactFactory = contactFactory;
         setOrder(DEFAULT_ORDER);

         setPhoneUri(phoneUri);

         setWidgetLayoutResource(R.layout.preference_user_action_widget);
         setPersistent(false);
     }

     public void setPhoneUri(@NonNull Uri phoneUri) {
         if (mContact != null && !phoneUri.equals(mContact.getPhoneUri()) &&
                 mRemoveContactDialog != null) {
             mRemoveContactDialog.dismiss();
         }
         mContact = mContactFactory.getContact(getContext(), phoneUri);

         setTitle(mContact.getName());
         setKey(mContact.getPhoneUri().toString());
         String summary = mContact.getPhoneType() == null ?
                 mContact.getPhoneNumber() :
                 String.format(
                         getContext().getResources().getString(R.string.phone_type_and_phone_number),
                         mContact.getPhoneType(),
                         BidiFormatter.getInstance().unicodeWrap(mContact.getPhoneNumber(),
                                 TextDirectionHeuristics.LTR));
         setSummary(summary);

         // Update the message to show the correct name.
         if (mRemoveContactDialog != null) {
             mRemoveContactDialog.setMessage(
                     String.format(getContext().getString(R.string.remove_contact),
                             mContact.getName()));
         }

         //TODO: Consider doing the following in a non-UI thread.
         Drawable icon;
         if (mContact.getPhoto() != null) {
             icon = new CircleFramedDrawable(mContact.getPhoto(),
                     (int) getContext().getResources().getDimension(R.dimen.circle_avatar_size));
         } else {
             icon = getContext().getDrawable(R.drawable.ic_account_circle_filled_24dp);
         }
         setIcon(icon);
     }

     /** Listener to be informed when a contact preference should be deleted. */
     public void setRemoveContactPreferenceListener(
             RemoveContactPreferenceListener removeContactListener) {
         mRemoveContactPreferenceListener = removeContactListener;
         if (mRemoveContactPreferenceListener == null) {
             mRemoveContactDialog = null;
             return;
         }
         if (mRemoveContactDialog != null) {
             return;
         }
         // Create the remove contact dialog
         AlertDialog.Builder builder = new AlertDialog.Builder(getContext());
         builder.setNegativeButton(getContext().getString(R.string.cancel), null);
         builder.setPositiveButton(getContext().getString(R.string.remove),
                 new DialogInterface.OnClickListener() {
                     @Override
                     public void onClick(DialogInterface dialogInterface,
                                         int which) {
                         if (mRemoveContactPreferenceListener != null) {
                             mRemoveContactPreferenceListener
                                     .onRemoveContactPreference(ContactPreference.this);
                         }
                     }
                 });
         builder.setMessage(String.format(getContext().getString(R.string.remove_contact),
                 mContact.getName()));
         mRemoveContactDialog = builder.create();
     }

     @Override
     public void onBindViewHolder(PreferenceViewHolder holder) {
         super.onBindViewHolder(holder);
         View deleteContactIcon = holder.findViewById(R.id.delete_contact);
         View callContactIcon = holder.findViewById(R.id.call_contact);
         if (mRemoveContactPreferenceListener == null) {
             // Default icon is delete, change icon to phone when ContactPreference binding
             // ViewEmergencyContactsFragment.
             deleteContactIcon.setVisibility(View.GONE);
             callContactIcon.setVisibility(View.VISIBLE);
         } else {
             deleteContactIcon.setOnClickListener((View view) -> {
                 showRemoveContactDialog(null);
             });
         }
     }

     public Uri getPhoneUri() {
         return mContact.getPhoneUri();
     }

     @VisibleForTesting
     EmergencyContactManager.Contact getContact() {
         return mContact;
     }

     @VisibleForTesting
     AlertDialog getRemoveContactDialog() {
         return mRemoveContactDialog;
     }

     /**
      * Calls the contact.
      */
     public void callContact() {
         // Use TelecomManager to place the call; this APK has CALL_PRIVILEGED permission so it will
         // be able to call emergency numbers.
         TelecomManager tm = (TelecomManager) getContext().getSystemService(Context.TELECOM_SERVICE);
         tm.placeCall(Uri.parse("tel:" + mContact.getPhoneNumber()), null);
         MetricsLogger.action(getContext(), MetricsEvent.ACTION_CALL_EMERGENCY_CONTACT);
     }

     /**
      * Displays a contact card for the contact.
      */
     public void displayContact() {
         Intent displayIntent = new Intent(Intent.ACTION_VIEW)
                 .setData(mContact.getContactLookupUri())
                 .addFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
         try {
             getContext().startActivity(displayIntent);
         } catch (ActivityNotFoundException e) {
             Toast.makeText(getContext(),
                            getContext().getString(R.string.fail_display_contact),
                            Toast.LENGTH_LONG).show();
             Log.w(TAG, "No contact app available to display the contact", e);
             return;
         }

     }

     /** Shows the dialog to remove the contact, restoring it from {@code state} if it's not null. */
     private void showRemoveContactDialog(Bundle state) {
         if (mRemoveContactDialog == null) {
             return;
         }
         if (state != null) {
             mRemoveContactDialog.onRestoreInstanceState(state);
         }
         mRemoveContactDialog.show();
     }

     @Override
     protected Parcelable onSaveInstanceState() {
         final Parcelable superState = super.onSaveInstanceState();
         if (mRemoveContactDialog == null || !mRemoveContactDialog.isShowing()) {
             return superState;
         }
         final SavedState myState = new SavedState(superState);
         myState.isDialogShowing = true;
         myState.dialogBundle = mRemoveContactDialog.onSaveInstanceState();
         return myState;
     }

     @Override
     protected void onRestoreInstanceState(Parcelable state) {
         if (state == null || !state.getClass().equals(SavedState.class)) {
             // Didn't save state for us in onSaveInstanceState
             super.onRestoreInstanceState(state);
             return;
         }
         SavedState myState = (SavedState) state;
         super.onRestoreInstanceState(myState.getSuperState());
         if (myState.isDialogShowing) {
             showRemoveContactDialog(myState.dialogBundle);
         }
     }

     private static class SavedState extends BaseSavedState {
         boolean isDialogShowing;
         Bundle dialogBundle;

         public SavedState(Parcel source) {
             super(source);
             isDialogShowing = source.readInt() == 1;
             dialogBundle = source.readBundle();
         }

         @Override
         public void writeToParcel(Parcel dest, int flags) {
             super.writeToParcel(dest, flags);
             dest.writeInt(isDialogShowing ? 1 : 0);
             dest.writeBundle(dialogBundle);
         }

         public SavedState(Parcelable superState) {
             super(superState);
         }

         public static final Parcelable.Creator<SavedState> CREATOR =
                 new Parcelable.Creator<SavedState>() {
                     public SavedState createFromParcel(Parcel in) {
                         return new SavedState(in);
                     }

                     public SavedState[] newArray(int size) {
                         return new SavedState[size];
                     }
                 };
     }
 }
	/*
	* Copyright (C) 2016 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.emergency.preferences;

	import android.app.AlertDialog;
	import android.content.ActivityNotFoundException;
	import android.content.ComponentName;
	import android.content.Context;
	import android.content.DialogInterface;
	import android.content.Intent;
	import android.content.pm.PackageManager;
	import android.content.pm.ResolveInfo;
	import android.graphics.drawable.Drawable;
	import android.net.Uri;
	import android.os.Bundle;
	import android.os.Parcel;
	import android.os.Parcelable;
	import androidx.annotation.NonNull;
	import androidx.annotation.Nullable;
	import androidx.preference.Preference;
	import androidx.preference.PreferenceViewHolder;
	import android.telecom.TelecomManager;
	import android.text.BidiFormatter;
	import android.text.TextDirectionHeuristics;
	import android.util.AttributeSet;
	import android.util.Log;
	import android.view.View;
	import android.widget.ImageView;
	import android.widget.Toast;

	import com.android.emergency.CircleFramedDrawable;
	import com.android.emergency.EmergencyContactManager;
	import com.android.emergency.R;
	import com.android.internal.annotations.VisibleForTesting;
	import com.android.internal.logging.MetricsLogger;
	import com.android.internal.logging.nano.MetricsProto.MetricsEvent;

	import java.util.List;


	/**
	* A {@link Preference} to display or call a contact using the specified URI string.
	*/
	public class ContactPreference extends Preference {

	private static final String TAG = "ContactPreference";

	static final ContactFactory DEFAULT_CONTACT_FACTORY = new ContactFactory() {
	@Override
	public EmergencyContactManager.Contact getContact(Context context, Uri phoneUri) {
	return EmergencyContactManager.getContact(context, phoneUri);
	}
	};

	private final ContactFactory mContactFactory;
	private EmergencyContactManager.Contact mContact;
	@Nullable private RemoveContactPreferenceListener mRemoveContactPreferenceListener;
	@Nullable private AlertDialog mRemoveContactDialog;

	/**
	* Listener for removing a contact.
	*/
	public interface RemoveContactPreferenceListener {
	/**
	* Callback to remove a contact preference.
	*/
	void onRemoveContactPreference(ContactPreference preference);
	}

	/**
	* Interface for getting a contact for a phone number Uri.
	*/
	public interface ContactFactory {
	/**
	* Gets a {@link EmergencyContactManager.Contact} for a phone {@link Uri}.
	*
	* @param context The context to use.
	* @param phoneUri The phone uri.
	* @return a contact for the given phone uri.
	*/
	EmergencyContactManager.Contact getContact(Context context, Uri phoneUri);
	}

	public ContactPreference(Context context, AttributeSet attributes) {
	super(context, attributes);
	mContactFactory = DEFAULT_CONTACT_FACTORY;
	}

	/**
	* Instantiates a ContactPreference that displays an emergency contact, taking in a Context and
	* the Uri.
	*/
	public ContactPreference(Context context, @NonNull Uri phoneUri) {
	this(context, phoneUri, DEFAULT_CONTACT_FACTORY);
	}

	@VisibleForTesting
	ContactPreference(Context context, @NonNull Uri phoneUri,
	@NonNull ContactFactory contactFactory) {
	super(context);
	mContactFactory = contactFactory;
	setOrder(DEFAULT_ORDER);

	setPhoneUri(phoneUri);

	setWidgetLayoutResource(R.layout.preference_user_action_widget);
	setPersistent(false);
	}

	public void setPhoneUri(@NonNull Uri phoneUri) {
	if (mContact != null && !phoneUri.equals(mContact.getPhoneUri()) &&
	mRemoveContactDialog != null) {
	mRemoveContactDialog.dismiss();
	}
	mContact = mContactFactory.getContact(getContext(), phoneUri);

	setTitle(mContact.getName());
	setKey(mContact.getPhoneUri().toString());
	String summary = mContact.getPhoneType() == null ?
	mContact.getPhoneNumber() :
	String.format(
	getContext().getResources().getString(R.string.phone_type_and_phone_number),
	mContact.getPhoneType(),
	BidiFormatter.getInstance().unicodeWrap(mContact.getPhoneNumber(),
	TextDirectionHeuristics.LTR));
	setSummary(summary);

	// Update the message to show the correct name.
	if (mRemoveContactDialog != null) {
	mRemoveContactDialog.setMessage(
	String.format(getContext().getString(R.string.remove_contact),
	mContact.getName()));
	}

	//TODO: Consider doing the following in a non-UI thread.
	Drawable icon;
	if (mContact.getPhoto() != null) {
	icon = new CircleFramedDrawable(mContact.getPhoto(),
	(int) getContext().getResources().getDimension(R.dimen.circle_avatar_size));
	} else {
	icon = getContext().getDrawable(R.drawable.ic_account_circle_filled_24dp);
	}
	setIcon(icon);
	}

	/** Listener to be informed when a contact preference should be deleted. */
	public void setRemoveContactPreferenceListener(
	RemoveContactPreferenceListener removeContactListener) {
	mRemoveContactPreferenceListener = removeContactListener;
	if (mRemoveContactPreferenceListener == null) {
	mRemoveContactDialog = null;
	return;
	}
	if (mRemoveContactDialog != null) {
	return;
	}
	// Create the remove contact dialog
	AlertDialog.Builder builder = new AlertDialog.Builder(getContext());
	builder.setNegativeButton(getContext().getString(R.string.cancel), null);
	builder.setPositiveButton(getContext().getString(R.string.remove),
	new DialogInterface.OnClickListener() {
	@Override
	public void onClick(DialogInterface dialogInterface,
	int which) {
	if (mRemoveContactPreferenceListener != null) {
	mRemoveContactPreferenceListener
	.onRemoveContactPreference(ContactPreference.this);
	}
	}
	});
	builder.setMessage(String.format(getContext().getString(R.string.remove_contact),
	mContact.getName()));
	mRemoveContactDialog = builder.create();
	}

	@Override
	public void onBindViewHolder(PreferenceViewHolder holder) {
	super.onBindViewHolder(holder);
	View deleteContactIcon = holder.findViewById(R.id.delete_contact);
	View callContactIcon = holder.findViewById(R.id.call_contact);
	if (mRemoveContactPreferenceListener == null) {
	// Default icon is delete, change icon to phone when ContactPreference binding
	// ViewEmergencyContactsFragment.
	deleteContactIcon.setVisibility(View.GONE);
	callContactIcon.setVisibility(View.VISIBLE);
	} else {
	deleteContactIcon.setOnClickListener((View view) -> {
	showRemoveContactDialog(null);
	});
	}
	}

	public Uri getPhoneUri() {
	return mContact.getPhoneUri();
	}

	@VisibleForTesting
	EmergencyContactManager.Contact getContact() {
	return mContact;
	}

	@VisibleForTesting
	AlertDialog getRemoveContactDialog() {
	return mRemoveContactDialog;
	}

	/**
	* Calls the contact.
	*/
	public void callContact() {
	// Use TelecomManager to place the call; this APK has CALL_PRIVILEGED permission so it will
	// be able to call emergency numbers.
	TelecomManager tm = (TelecomManager) getContext().getSystemService(Context.TELECOM_SERVICE);
	tm.placeCall(Uri.parse("tel:" + mContact.getPhoneNumber()), null);
	MetricsLogger.action(getContext(), MetricsEvent.ACTION_CALL_EMERGENCY_CONTACT);
	}

	/**
	* Displays a contact card for the contact.
	*/
	public void displayContact() {
	Intent displayIntent = new Intent(Intent.ACTION_VIEW)
	.setData(mContact.getContactLookupUri())
	.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
	try {
	getContext().startActivity(displayIntent);
	} catch (ActivityNotFoundException e) {
	Toast.makeText(getContext(),
	getContext().getString(R.string.fail_display_contact),
	Toast.LENGTH_LONG).show();
	Log.w(TAG, "No contact app available to display the contact", e);
	return;
	}

	}

	/** Shows the dialog to remove the contact, restoring it from {@code state} if it's not null. */
	private void showRemoveContactDialog(Bundle state) {
	if (mRemoveContactDialog == null) {
	return;
	}
	if (state != null) {
	mRemoveContactDialog.onRestoreInstanceState(state);
	}
	mRemoveContactDialog.show();
	}

	@Override
	protected Parcelable onSaveInstanceState() {
	final Parcelable superState = super.onSaveInstanceState();
	if (mRemoveContactDialog == null \|\| !mRemoveContactDialog.isShowing()) {
	return superState;
	}
	final SavedState myState = new SavedState(superState);
	myState.isDialogShowing = true;
	myState.dialogBundle = mRemoveContactDialog.onSaveInstanceState();
	return myState;
	}

	@Override
	protected void onRestoreInstanceState(Parcelable state) {
	if (state == null \|\| !state.getClass().equals(SavedState.class)) {
	// Didn't save state for us in onSaveInstanceState
	super.onRestoreInstanceState(state);
	return;
	}
	SavedState myState = (SavedState) state;
	super.onRestoreInstanceState(myState.getSuperState());
	if (myState.isDialogShowing) {
	showRemoveContactDialog(myState.dialogBundle);
	}
	}

	private static class SavedState extends BaseSavedState {
	boolean isDialogShowing;
	Bundle dialogBundle;

	public SavedState(Parcel source) {
	super(source);
	isDialogShowing = source.readInt() == 1;
	dialogBundle = source.readBundle();
	}

	@Override
	public void writeToParcel(Parcel dest, int flags) {
	super.writeToParcel(dest, flags);
	dest.writeInt(isDialogShowing ? 1 : 0);
	dest.writeBundle(dialogBundle);
	}

	public SavedState(Parcelable superState) {
	super(superState);
	}

	public static final Parcelable.Creator<SavedState> CREATOR =
	new Parcelable.Creator<SavedState>() {
	public SavedState createFromParcel(Parcel in) {
	return new SavedState(in);
	}

	public SavedState[] newArray(int size) {
	return new SavedState[size];
	}
	};
	}
	}