1 /*
2  * Copyright (C) 2023 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.systemui.statusbar.notification.row
18 
19 import android.text.PrecomputedText
20 import android.text.Spannable
21 import android.util.Log
22 import android.widget.TextView
23 
24 internal interface TextPrecomputer {
25     /**
26      * Creates PrecomputedText from given text and returns a runnable which sets precomputed text to
27      * the textview on main thread.
28      *
29      * @param text text to be converted to PrecomputedText
30      * @return Runnable that sets precomputed text on the main thread
31      */
precomputenull32     fun precompute(
33         textView: TextView,
34         text: CharSequence?,
35         logException: Boolean = true
36     ): Runnable {
37         val precomputedText: Spannable? =
38             text?.let { PrecomputedText.create(it, textView.textMetricsParams) }
39 
40         return Runnable {
41             try {
42                 textView.text = precomputedText
43             } catch (exception: IllegalArgumentException) {
44                 if (logException) {
45                     Log.wtf(
46                         /* tag = */ TAG,
47                         /* msg = */ "PrecomputedText setText failed for TextView:$textView",
48                         /* tr = */ exception
49                     )
50                 }
51                 textView.text = text
52             }
53         }
54     }
55 
56     private companion object {
57         private const val TAG = "TextPrecomputer"
58     }
59 }
60