2 * Copyright © 2020-2021 Soren Stoutner <soren@stoutner.com>.
4 * This file is part of Privacy Browser <https://www.stoutner.com/privacy-browser>.
6 * Privacy Browser 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 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. If not, see <http://www.gnu.org/licenses/>.
20 package com.stoutner.privacybrowser.viewmodels
22 import android.text.SpannableStringBuilder
24 import androidx.lifecycle.LiveData
25 import androidx.lifecycle.MutableLiveData
26 import androidx.lifecycle.ViewModel
28 import com.stoutner.privacybrowser.backgroundtasks.GetSourceBackgroundTask
31 import java.util.concurrent.ExecutorService
33 class WebViewSource(private val urlString: String, private val userAgent: String, private val localeString: String, private val proxy: Proxy,
34 private val executorService: ExecutorService): ViewModel() {
35 // Initialize the mutable live data variables.
36 private val mutableLiveDataSourceStringArray = MutableLiveData<Array<SpannableStringBuilder>>()
37 private val mutableLiveDataErrorString = MutableLiveData<String>()
39 // Initialize the view model.
41 // Instantiate the get source background task class.
42 val getSourceBackgroundTask = GetSourceBackgroundTask()
45 executorService.execute { mutableLiveDataSourceStringArray.postValue(getSourceBackgroundTask.acquire(urlString, userAgent, localeString, proxy, this)) }
48 // The source observer.
49 fun observeSource(): LiveData<Array<SpannableStringBuilder>> {
50 // Return the source to the activity.
51 return mutableLiveDataSourceStringArray
54 // The error observer.
55 fun observeErrors(): LiveData<String> {
56 // Return any errors to the activity.
57 return mutableLiveDataErrorString
60 // The interface for returning the error from the background task
61 fun returnError(errorString: String) {
62 // Update the mutable live data error string.
63 mutableLiveDataErrorString.postValue(errorString)
66 // The workhorse that gets the source.
67 fun updateSource(urlString: String) {
68 // Reset the mutable live data error string. This prevents the snackbar from displaying later if the activity restarts.
69 mutableLiveDataErrorString.postValue("")
71 // Instantiate the get source background task class.
72 val getSourceBackgroundTask = GetSourceBackgroundTask()
75 executorService.execute { mutableLiveDataSourceStringArray.postValue(getSourceBackgroundTask.acquire(urlString, userAgent, localeString, proxy, this)) }