1 /*
2  * Copyright (C) 2024 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 
17 package com.android.wallpaper.picker.category.ui.view
18 
19 import android.Manifest
20 import android.app.Activity
21 import android.content.ActivityNotFoundException
22 import android.content.Intent
23 import android.content.pm.PackageManager
24 import android.util.Log
25 import androidx.activity.result.ActivityResultLauncher
26 import com.android.wallpaper.module.InjectorProvider
27 import com.android.wallpaper.picker.MyPhotosStarter
28 import com.android.wallpaper.picker.MyPhotosStarter.PermissionChangedListener
29 import com.android.wallpaper.picker.WallpaperPickerDelegate
30 import com.android.wallpaper.picker.category.ui.view.CategoriesFragment.Companion.READ_IMAGE_PERMISSION
31 import javax.inject.Inject
32 import javax.inject.Singleton
33 
34 /**
35  * This class handles all the operations related to photo picker and MyPhotos tile in the category
36  * page.
37  */
38 @Singleton
39 class MyPhotosStarterImpl @Inject constructor() : MyPhotosStarter {
40 
41     private val permissionChangedListeners: MutableList<PermissionChangedListener> = mutableListOf()
42 
requestCustomPhotoPickernull43     override fun requestCustomPhotoPicker(
44         listener: PermissionChangedListener,
45         activity: Activity,
46         photoPickerLauncher: ActivityResultLauncher<Intent>,
47     ) {
48         // TODO (b/282073506): Figure out a better way to have better photos experience
49         if (!isReadExternalStoragePermissionGranted(activity)) {
50             val wrappedListener: PermissionChangedListener =
51                 object : PermissionChangedListener {
52                     override fun onPermissionsGranted() {
53                         listener.onPermissionsGranted()
54                         showCustomPhotoPicker(photoPickerLauncher)
55                     }
56 
57                     override fun onPermissionsDenied(dontAskAgain: Boolean) {
58                         listener.onPermissionsDenied(dontAskAgain)
59                     }
60                 }
61             requestExternalStoragePermission(wrappedListener, activity)
62             return
63         }
64 
65         showCustomPhotoPicker(photoPickerLauncher)
66     }
67 
isReadExternalStoragePermissionGrantednull68     private fun isReadExternalStoragePermissionGranted(activity: Activity): Boolean {
69         return activity.packageManager.checkPermission(
70             Manifest.permission.READ_MEDIA_IMAGES,
71             activity.packageName,
72         ) == PackageManager.PERMISSION_GRANTED
73     }
74 
requestExternalStoragePermissionnull75     private fun requestExternalStoragePermission(
76         listener: PermissionChangedListener?,
77         activity: Activity,
78     ) {
79         if (listener != null) {
80             permissionChangedListeners.add(listener)
81         }
82         activity.requestPermissions(
83             arrayOf<String>(READ_IMAGE_PERMISSION),
84             WallpaperPickerDelegate.READ_EXTERNAL_STORAGE_PERMISSION_REQUEST_CODE,
85         )
86     }
87 
showCustomPhotoPickernull88     private fun showCustomPhotoPicker(photoPickerLauncher: ActivityResultLauncher<Intent>) {
89         val injector = InjectorProvider.getInjector()
90         try {
91             val intent: Intent = injector.getMyPhotosIntentProvider().getMyPhotosIntent()
92             photoPickerLauncher.launch(intent)
93         } catch (e: ActivityNotFoundException) {
94             val fallback: Intent? = injector.getMyPhotosIntentProvider().fallbackIntent
95             if (fallback != null) {
96                 Log.i(TAG, "Couldn't launch photo picker with main intent, trying with fallback")
97                 photoPickerLauncher.launch(fallback)
98             } else {
99                 Log.e(
100                     TAG,
101                     "Couldn't launch photo picker with main intent and no fallback is " +
102                         "available",
103                 )
104                 throw e
105             }
106         }
107     }
108 
109     /**
110      * This method is not implemented on purpose since the other method that allows specifying a
111      * custom activity is already implemented which achieves the main purpose of requesting the
112      * photo picker. This method is only added for backward compatibility purposes so we can
113      * continue to use the same interface as earlier.
114      */
requestCustomPhotoPickernull115     override fun requestCustomPhotoPicker(listener: PermissionChangedListener?) {
116         TODO("Not yet implemented")
117     }
118 
119     companion object {
120         private const val TAG = "WallpaperPickerDelegate2"
121     }
122 }
123