1/*
2 * Copyright (C) 2016 The Android Open Source Project
3 *
4 * Licensed under the Apache License, Version 2.0 (the "License");
5 * you may not use this file except in compliance with the License.
6 * You may obtain a copy of the License at
7 *
8 *      http://www.apache.org/licenses/LICENSE-2.0
9 *
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License.
15 */
16
17package com.android.dialer.contactinfo;
18
19import android.content.Context;
20import android.graphics.Bitmap;
21import android.graphics.Canvas;
22import android.graphics.drawable.Drawable;
23import android.provider.MediaStore;
24import android.support.annotation.Nullable;
25import android.support.v4.graphics.drawable.RoundedBitmapDrawable;
26import android.support.v4.graphics.drawable.RoundedBitmapDrawableFactory;
27import android.util.Log;
28
29import com.android.contacts.common.GeoUtil;
30import com.android.contacts.common.lettertiles.LetterTileDrawable;
31import com.android.dialer.R;
32import com.android.dialer.calllog.ContactInfo;
33import com.android.dialer.calllog.ContactInfoHelper;
34import com.android.dialer.util.Assert;
35import com.google.common.annotations.VisibleForTesting;
36import com.google.common.base.Preconditions;
37
38import java.io.IOException;
39/**
40 * Class to create the appropriate contact icon from a ContactInfo.
41 * This class is for synchronous, blocking calls to generate bitmaps, while
42 * ContactCommons.ContactPhotoManager is to cache, manage and update a ImageView asynchronously.
43 */
44public class ContactPhotoLoader {
45
46    private static final String TAG = "ContactPhotoLoader";
47
48    private final Context mContext;
49    private final ContactInfo mContactInfo;
50
51    public ContactPhotoLoader(Context context, ContactInfo contactInfo) {
52        mContext = Preconditions.checkNotNull(context);
53        mContactInfo = Preconditions.checkNotNull(contactInfo);
54    }
55
56    /**
57     * Create a contact photo icon bitmap appropriate for the ContactInfo.
58     */
59    public Bitmap loadPhotoIcon() {
60        Assert.assertNotUiThread("ContactPhotoLoader#loadPhotoIcon called on UI thread");
61        int photoSize = mContext.getResources().getDimensionPixelSize(R.dimen.contact_photo_size);
62        return drawableToBitmap(getIcon(), photoSize, photoSize);
63    }
64
65    @VisibleForTesting
66    Drawable getIcon() {
67        Drawable drawable = createPhotoIconDrawable();
68        if (drawable == null) {
69            drawable = createLetterTileDrawable();
70        }
71        return drawable;
72    }
73
74    /**
75     * @return a {@link Drawable} of  circular photo icon if the photo can be loaded, {@code null}
76     * otherwise.
77     */
78    @Nullable
79    private Drawable createPhotoIconDrawable() {
80        if (mContactInfo.photoUri == null) {
81            return null;
82        }
83        try {
84            Bitmap bitmap = MediaStore.Images.Media.getBitmap(mContext.getContentResolver(),
85                    mContactInfo.photoUri);
86            final RoundedBitmapDrawable drawable =
87                    RoundedBitmapDrawableFactory.create(mContext.getResources(), bitmap);
88            drawable.setAntiAlias(true);
89            drawable.setCornerRadius(bitmap.getHeight() / 2);
90            return drawable;
91        } catch (IOException e) {
92            Log.e(TAG, e.toString());
93            return null;
94        }
95    }
96
97    /**
98     * @return a {@link LetterTileDrawable} based on the ContactInfo.
99     */
100    private Drawable createLetterTileDrawable() {
101        LetterTileDrawable drawable = new LetterTileDrawable(mContext.getResources());
102        drawable.setIsCircular(true);
103        ContactInfoHelper helper =
104                new ContactInfoHelper(mContext, GeoUtil.getCurrentCountryIso(mContext));
105        if (helper.isBusiness(mContactInfo.sourceType)) {
106            drawable.setContactType(LetterTileDrawable.TYPE_BUSINESS);
107        }
108        drawable.setLetterAndColorFromContactDetails(mContactInfo.name, mContactInfo.lookupKey);
109        return drawable;
110    }
111
112    private static Bitmap drawableToBitmap(Drawable drawable, int width, int height) {
113        Bitmap bitmap = Bitmap.createBitmap(width, height, Bitmap.Config.ARGB_8888);
114        Canvas canvas = new Canvas(bitmap);
115        drawable.setBounds(0, 0, canvas.getWidth(), canvas.getHeight());
116        drawable.draw(canvas);
117        return bitmap;
118    }
119
120}
121