1 /*
2  * Copyright (C) 2022 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.settingslib.spa.slice
18 
19 import android.net.Uri
20 import android.util.Log
21 import androidx.lifecycle.Observer
22 import androidx.slice.Slice
23 import androidx.slice.SliceProvider
24 import com.android.settingslib.spa.framework.common.EntrySliceData
25 import com.android.settingslib.spa.framework.common.SpaEnvironmentFactory
26 import kotlinx.coroutines.Dispatchers
27 import kotlinx.coroutines.runBlocking
28 import kotlinx.coroutines.withContext
29 
30 private const val TAG = "SpaSliceProvider"
31 
32 class SpaSliceProvider : SliceProvider(), Observer<Slice?> {
getOrPutSliceDatanull33     private fun getOrPutSliceData(sliceUri: Uri): EntrySliceData? {
34         if (!SpaEnvironmentFactory.isReady()) return null
35         val sliceRepository by SpaEnvironmentFactory.instance.sliceDataRepository
36         return sliceRepository.getOrBuildSliceData(sliceUri)
37     }
38 
onBindSlicenull39     override fun onBindSlice(sliceUri: Uri): Slice? {
40         if (context == null) return null
41         Log.d(TAG, "onBindSlice: $sliceUri")
42         return getOrPutSliceData(sliceUri)?.value
43     }
44 
onSlicePinnednull45     override fun onSlicePinned(sliceUri: Uri) {
46         Log.d(TAG, "onSlicePinned: $sliceUri")
47         super.onSlicePinned(sliceUri)
48         val sliceLiveData = getOrPutSliceData(sliceUri) ?: return
49         runBlocking {
50             withContext(Dispatchers.Main) {
51                 sliceLiveData.observeForever(this@SpaSliceProvider)
52             }
53         }
54     }
55 
onSliceUnpinnednull56     override fun onSliceUnpinned(sliceUri: Uri) {
57         Log.d(TAG, "onSliceUnpinned: $sliceUri")
58         super.onSliceUnpinned(sliceUri)
59         val sliceLiveData = getOrPutSliceData(sliceUri) ?: return
60         runBlocking {
61             withContext(Dispatchers.Main) {
62                 sliceLiveData.removeObserver(this@SpaSliceProvider)
63             }
64         }
65     }
66 
onChangednull67     override fun onChanged(value: Slice?) {
68         val uri = value?.uri ?: return
69         Log.d(TAG, "onChanged: $uri")
70         context?.contentResolver?.notifyChange(uri, null)
71     }
72 
onCreateSliceProvidernull73     override fun onCreateSliceProvider(): Boolean {
74         Log.d(TAG, "onCreateSliceProvider")
75         return true
76     }
77 }
78