--- /dev/null
+/*
+ * Copyright © 2016-2021 Soren Stoutner <soren@stoutner.com>.
+ *
+ * This file is part of Privacy Browser <https://www.stoutner.com/privacy-browser>.
+ *
+ * Privacy Browser is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * Privacy Browser is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with Privacy Browser. If not, see <http://www.gnu.org/licenses/>.
+ */
+
+package com.stoutner.privacybrowser.activities
+
+import android.content.Intent
+import android.net.Uri
+import android.os.Bundle
+import android.view.WindowManager
+import android.widget.EditText
+import android.widget.LinearLayout
+
+import androidx.appcompat.app.AppCompatActivity
+import androidx.appcompat.widget.Toolbar
+import androidx.fragment.app.DialogFragment
+import androidx.preference.PreferenceManager
+import androidx.viewpager.widget.ViewPager
+
+import com.google.android.material.snackbar.Snackbar
+import com.google.android.material.tabs.TabLayout
+
+import com.stoutner.privacybrowser.R
+import com.stoutner.privacybrowser.adapters.AboutPagerAdapter
+import com.stoutner.privacybrowser.asynctasks.SaveAboutVersionImage
+import com.stoutner.privacybrowser.dialogs.SaveDialog
+import com.stoutner.privacybrowser.dialogs.SaveDialog.SaveListener
+import com.stoutner.privacybrowser.fragments.AboutVersionFragment
+
+import java.io.ByteArrayInputStream
+import java.io.InputStream
+import java.lang.Exception
+import java.nio.charset.StandardCharsets
+
+class AboutActivity : AppCompatActivity(), SaveListener {
+ // Declare the class variables.
+ private lateinit var aboutPagerAdapter: AboutPagerAdapter
+
+ companion object {
+ // Define the companion object constants. These can be move to being public constants once MainWebViewActivity has been converted to Kotlin.
+ const val BLOCKLIST_VERSIONS = "blocklist_versions"
+ }
+
+ override fun onCreate(savedInstanceState: Bundle?) {
+ // Get a handle for the shared preferences.
+ val sharedPreferences = PreferenceManager.getDefaultSharedPreferences(this)
+
+ // Get the screenshot preference.
+ val allowScreenshots = sharedPreferences.getBoolean(getString(R.string.allow_screenshots_key), false)
+
+ // Disable screenshots if not allowed.
+ if (!allowScreenshots) {
+ window.addFlags(WindowManager.LayoutParams.FLAG_SECURE)
+ }
+
+ // Set the theme.
+ setTheme(R.style.PrivacyBrowser)
+
+ // Run the default commands.
+ super.onCreate(savedInstanceState)
+
+ // Get the intent that launched the activity.
+ val launchingIntent = intent
+
+ // Store the blocklist versions.
+ val blocklistVersions = launchingIntent.getStringArrayExtra(BLOCKLIST_VERSIONS)!!
+
+ // Set the content view.
+ setContentView(R.layout.about_coordinatorlayout)
+
+ // Get handles for the views.
+ val toolbar = findViewById<Toolbar>(R.id.about_toolbar)
+ val aboutTabLayout = findViewById<TabLayout>(R.id.about_tablayout)
+ val aboutViewPager = findViewById<ViewPager>(R.id.about_viewpager)
+
+ // Set the action bar. `SupportActionBar` must be used until the minimum API is >= 21.
+ setSupportActionBar(toolbar)
+
+ // Get a handle for the action bar.
+ val actionBar = supportActionBar!!
+
+ // Display the home arrow on action bar.
+ actionBar.setDisplayHomeAsUpEnabled(true)
+
+ // Initialize the about pager adapter.
+ aboutPagerAdapter = AboutPagerAdapter(supportFragmentManager, applicationContext, blocklistVersions)
+
+ // Set the view pager adapter.
+ aboutViewPager.adapter = aboutPagerAdapter
+
+ // Keep all the tabs in memory. This prevents the memory usage updater from running multiple times.
+ aboutViewPager.offscreenPageLimit = 10
+
+ // Connect the tab layout to the view pager.
+ aboutTabLayout.setupWithViewPager(aboutViewPager)
+ }
+
+ // The activity result is called after browsing for a file in the save alert dialog.
+ public override fun onActivityResult(requestCode: Int, resultCode: Int, returnedIntent: Intent?) {
+ // Run the default commands.
+ super.onActivityResult(requestCode, resultCode, returnedIntent)
+
+ // Only do something if the user didn't press back from the file picker.
+ if (resultCode == RESULT_OK) {
+ // Get a handle for the save dialog fragment.
+ val saveDialogFragment = supportFragmentManager.findFragmentByTag(getString(R.string.save_dialog)) as DialogFragment?
+
+ // Only update the file name if the dialog still exists.
+ if (saveDialogFragment != null) {
+ // Get a handle for the save dialog.
+ val saveDialog = saveDialogFragment.dialog!!
+
+ // Get a handle for the file name edit text.
+ val fileNameEditText = saveDialog.findViewById<EditText>(R.id.file_name_edittext)
+
+ // Get the file name URI from the intent.
+ val fileNameUri = returnedIntent!!.data
+
+ // Get the file name string from the URI.
+ val fileNameString = fileNameUri.toString()
+
+ // Set the file name text.
+ fileNameEditText.setText(fileNameString)
+
+ // Move the cursor to the end of the file name edit text.
+ fileNameEditText.setSelection(fileNameString.length)
+ }
+ }
+ }
+
+ override fun onSave(saveType: Int, dialogFragment: DialogFragment) {
+ // Get a handle for the dialog.
+ val dialog = dialogFragment.dialog!!
+
+ // Get a handle for the file name edit text.
+ val fileNameEditText = dialog.findViewById<EditText>(R.id.file_name_edittext)
+
+ // Get the file name string.
+ val fileNameString = fileNameEditText.text.toString()
+
+ // Get a handle for the about version linear layout.
+ val aboutVersionLinearLayout = findViewById<LinearLayout>(R.id.about_version_linearlayout)
+
+ // Process the save event according to the type.
+ when (saveType) {
+ SaveDialog.SAVE_ABOUT_VERSION_TEXT -> try {
+ // Get a handle for the about version fragment.
+ val aboutVersionFragment = aboutPagerAdapter.getTabFragment(0) as AboutVersionFragment
+
+ // Get the about version text.
+ val aboutVersionString = aboutVersionFragment.aboutVersionString
+
+ // Create an input stream with the contents of about version.
+ val aboutVersionInputStream: InputStream = ByteArrayInputStream(aboutVersionString.toByteArray(StandardCharsets.UTF_8))
+
+ // Open an output stream.
+ val outputStream = contentResolver.openOutputStream(Uri.parse(fileNameString))!!
+
+ // Copy the input stream to the output stream.
+ aboutVersionInputStream.copyTo(outputStream, 2048)
+
+ // Close the streams.
+ aboutVersionInputStream.close()
+ outputStream.close()
+
+ // Display a snackbar with the saved about version information.
+ Snackbar.make(aboutVersionLinearLayout, getString(R.string.file_saved) + " " + fileNameString, Snackbar.LENGTH_SHORT).show()
+ } catch (exception: Exception) {
+ // Display a snackbar with the error message.
+ Snackbar.make(aboutVersionLinearLayout, getString(R.string.error_saving_file) + " " + exception.toString(), Snackbar.LENGTH_INDEFINITE).show()
+ }
+
+ SaveDialog.SAVE_ABOUT_VERSION_IMAGE ->
+ // Save the about version image.
+ SaveAboutVersionImage(this, fileNameString, aboutVersionLinearLayout).execute()
+ }
+ }
+}
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projects / PrivacyBrowserAndroid.git / blobdiff