2 * Copyright 2020-2023 Soren Stoutner <soren@stoutner.com>.
4 * This file is part of Privacy Browser Android <https://www.stoutner.com/privacy-browser-android>.
6 * Privacy Browser Android is free software: you can redistribute it and/or modify
7 * it under the terms of the GNU General Public License as published by
8 * the Free Software Foundation, either version 3 of the License, or
9 * (at your option) any later version.
11 * Privacy Browser Android is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 * GNU General Public License for more details.
16 * You should have received a copy of the GNU General Public License
17 * along with Privacy Browser Android. If not, see <http://www.gnu.org/licenses/>.
20 package com.stoutner.privacybrowser.viewmodels
22 import android.content.ContentResolver
23 import android.text.SpannableStringBuilder
25 import androidx.lifecycle.LiveData
26 import androidx.lifecycle.MutableLiveData
27 import androidx.lifecycle.ViewModel
29 import com.stoutner.privacybrowser.backgroundtasks.GetHeadersBackgroundTask
32 import java.util.concurrent.ExecutorService
34 class HeadersViewModel(private val urlString: String, private val userAgent: String, private val localeString: String, private val proxy: Proxy, private val contentResolver: ContentResolver,
35 private val executorService: ExecutorService): ViewModel() {
36 // Initialize the mutable live data variables.
37 private val mutableLiveDataSourceStringArray = MutableLiveData<Array<SpannableStringBuilder>>()
38 private val mutableLiveDataErrorString = MutableLiveData<String>()
40 // Initialize the view model.
42 // Instantiate the get headers background task class.
43 val getSourceBackgroundTask = GetHeadersBackgroundTask()
46 executorService.execute { mutableLiveDataSourceStringArray.postValue(getSourceBackgroundTask.acquire(urlString, userAgent, localeString, proxy, contentResolver, this,
50 // The headers observer.
51 fun observeHeaders(): LiveData<Array<SpannableStringBuilder>> {
52 // Return the source to the activity.
53 return mutableLiveDataSourceStringArray
56 // The error observer.
57 fun observeErrors(): LiveData<String> {
58 // Return any errors to the activity.
59 return mutableLiveDataErrorString
62 // The interface for returning the error from the background task
63 fun returnError(errorString: String) {
64 // Update the mutable live data error string.
65 mutableLiveDataErrorString.postValue(errorString)
68 // The workhorse that gets the headers.
69 fun updateHeaders(urlString: String, ignoreSslErrors: Boolean) {
70 // Reset the mutable live data error string. This prevents the snackbar from displaying later if the activity restarts.
71 mutableLiveDataErrorString.postValue("")
73 // Instantiate the get headers background task class.
74 val getSourceBackgroundTask = GetHeadersBackgroundTask()
77 executorService.execute { mutableLiveDataSourceStringArray.postValue(getSourceBackgroundTask.acquire(urlString, userAgent, localeString, proxy, contentResolver, this,