--- /dev/null
+/*
+ * Copyright © 2015-2020 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.dialogs
+
+import android.annotation.SuppressLint
+import android.app.Dialog
+import android.content.DialogInterface
+import android.content.Intent
+import android.graphics.Bitmap
+import android.graphics.BitmapFactory
+import android.graphics.drawable.BitmapDrawable
+import android.graphics.drawable.Drawable
+import android.net.Uri
+import android.os.Bundle
+import android.text.Editable
+import android.text.TextWatcher
+import android.view.KeyEvent
+import android.view.View
+import android.view.WindowManager
+import android.widget.Button
+import android.widget.EditText
+import android.widget.RadioButton
+
+import androidx.appcompat.app.AlertDialog
+import androidx.core.content.pm.ShortcutInfoCompat
+import androidx.core.content.pm.ShortcutManagerCompat
+import androidx.core.graphics.drawable.IconCompat
+import androidx.fragment.app.DialogFragment
+import androidx.preference.PreferenceManager
+
+import com.stoutner.privacybrowser.BuildConfig
+import com.stoutner.privacybrowser.R
+
+import java.io.ByteArrayOutputStream
+
+class CreateHomeScreenShortcutDialog: DialogFragment() {
+ // Define the class variables.
+ private lateinit var shortcutNameEditText: EditText
+ private lateinit var urlEditText: EditText
+ private lateinit var openWithPrivacyBrowserRadioButton: RadioButton
+
+ companion object {
+ // `@JvmStatic` will no longer be required once all the code has transitioned to Kotlin. Also, the function can then be moved out of a companion object and just become a package-level function.
+ @JvmStatic
+ fun createDialog(shortcutName: String, urlString: String, favoriteIconBitmap: Bitmap): CreateHomeScreenShortcutDialog {
+ // Create a favorite icon byte array output stream.
+ val favoriteIconByteArrayOutputStream = ByteArrayOutputStream()
+
+ // Convert the favorite icon to a PNG and place it in the byte array output stream. `0` is for lossless compression (the only option for a PNG).
+ favoriteIconBitmap.compress(Bitmap.CompressFormat.PNG, 0, favoriteIconByteArrayOutputStream)
+
+ // Convert the byte array output stream to a byte array.
+ val favoriteIconByteArray = favoriteIconByteArrayOutputStream.toByteArray()
+
+ // Create an arguments bundle.
+ val argumentsBundle = Bundle()
+
+ // Store the variables in the bundle.
+ argumentsBundle.putString("shortcut_name", shortcutName)
+ argumentsBundle.putString("url_string", urlString)
+ argumentsBundle.putByteArray("favorite_icon_byte_array", favoriteIconByteArray)
+
+ // Create a new instance of the dialog.
+ val createHomeScreenShortcutDialog = CreateHomeScreenShortcutDialog()
+
+ // Add the bundle to the dialog.
+ createHomeScreenShortcutDialog.arguments = argumentsBundle
+
+ // Return the new dialog.
+ return createHomeScreenShortcutDialog
+ }
+ }
+
+ // `@SuppressLing("InflateParams")` removes the warning about using `null` as the parent view group when inflating the `AlertDialog`.
+ @SuppressLint("InflateParams")
+ override fun onCreateDialog(savedInstanceState: Bundle?): Dialog {
+ // Get the arguments.
+ val arguments = arguments!!
+
+ // Get the strings from the arguments.
+ val initialShortcutName = arguments.getString("shortcut_name")
+ val initialUrlString = arguments.getString("url_string")
+
+ // Get the favorite icon byte array.
+ val favoriteIconByteArray = arguments.getByteArray("favorite_icon_byte_array")!!
+
+ // Convert the favorite icon byte array to a bitmap.
+ val favoriteIconBitmap = BitmapFactory.decodeByteArray(favoriteIconByteArray, 0, favoriteIconByteArray.size)
+
+ // Get a handle for the shared preferences.
+ val sharedPreferences = PreferenceManager.getDefaultSharedPreferences(context)
+
+ // Get the theme and screenshot preferences.
+ val allowScreenshots = sharedPreferences.getBoolean("allow_screenshots", false)
+ val darkTheme = sharedPreferences.getBoolean("dark_theme", false)
+
+ // Use an alert dialog builder to create the dialog and set the style according to the theme.
+ val dialogBuilder = if (darkTheme) {
+ AlertDialog.Builder(activity!!, R.style.PrivacyBrowserAlertDialogDark)
+ } else {
+ AlertDialog.Builder(activity!!, R.style.PrivacyBrowserAlertDialogLight)
+ }
+
+ // Create a drawable version of the favorite icon.
+ val favoriteIconDrawable: Drawable = BitmapDrawable(resources, favoriteIconBitmap)
+
+ // Set the title and icon.
+ dialogBuilder.setTitle(R.string.create_shortcut)
+ dialogBuilder.setIcon(favoriteIconDrawable)
+
+ // Set the view. The parent view is null because it will be assigned by the alert dialog.
+ dialogBuilder.setView(activity!!.layoutInflater.inflate(R.layout.create_home_screen_shortcut_dialog, null))
+
+ // Set a listener on the close button. Using null closes the dialog without doing anything else.
+ dialogBuilder.setNegativeButton(R.string.cancel, null)
+
+ // Set a listener on the create button.
+ dialogBuilder.setPositiveButton(R.string.create) { _: DialogInterface, _: Int ->
+ // Create the home screen shortcut.
+ createHomeScreenShortcut(favoriteIconBitmap)
+ }
+
+ // Create an alert dialog from the alert dialog builder.
+ val alertDialog = dialogBuilder.create()
+
+ // Disable screenshots if not allowed.
+ if (!allowScreenshots) {
+ alertDialog.window!!.addFlags(WindowManager.LayoutParams.FLAG_SECURE)
+ }
+
+ // The alert dialog must be shown before the contents can be modified.
+ alertDialog.show()
+
+ // Get handles for the views.
+ shortcutNameEditText = alertDialog.findViewById(R.id.shortcut_name_edittext)!!
+ urlEditText = alertDialog.findViewById(R.id.url_edittext)!!
+ openWithPrivacyBrowserRadioButton = alertDialog.findViewById(R.id.open_with_privacy_browser_radiobutton)!!
+ val createButton = alertDialog.getButton(AlertDialog.BUTTON_POSITIVE)
+
+ // Populate the edit texts.
+ shortcutNameEditText.setText(initialShortcutName)
+ urlEditText.setText(initialUrlString)
+
+ // Add a text change listener to the shortcut name edit text.
+ shortcutNameEditText.addTextChangedListener(object: TextWatcher {
+ override fun beforeTextChanged(s: CharSequence, start: Int, count: Int, after: Int) {
+ // Do nothing.
+ }
+
+ override fun onTextChanged(s: CharSequence, start: Int, before: Int, count: Int) {
+ // Do nothing.
+ }
+
+ override fun afterTextChanged(s: Editable) {
+ // Update the create button.
+ updateCreateButton(createButton)
+ }
+ })
+
+ // Add a text change listener to the URL edit text.
+ urlEditText.addTextChangedListener(object : TextWatcher {
+ override fun beforeTextChanged(s: CharSequence, start: Int, count: Int, after: Int) {
+ // Do nothing.
+ }
+
+ override fun onTextChanged(s: CharSequence, start: Int, before: Int, count: Int) {
+ // Do nothing.
+ }
+
+ override fun afterTextChanged(s: Editable) {
+ // Update the create button.
+ updateCreateButton(createButton)
+ }
+ })
+
+ // Allow the enter key on the keyboard to create the shortcut when editing the name.
+ shortcutNameEditText.setOnKeyListener { _: View?, keyCode: Int, keyEvent: KeyEvent ->
+ // Check the key code, event, and button status.
+ if (keyEvent.action == KeyEvent.ACTION_DOWN && keyCode == KeyEvent.KEYCODE_ENTER && createButton.isEnabled) { // The event is a key-down on the enter key and the create button is enabled.
+ // Create the home screen shortcut.
+ createHomeScreenShortcut(favoriteIconBitmap)
+
+ // Manually dismiss the alert dialog.
+ alertDialog.dismiss()
+
+ // Consume the event.
+ return@setOnKeyListener true
+ } else { // Some other key was pressed or the create button is disabled.
+ // Do not consume the event.
+ return@setOnKeyListener false
+ }
+ }
+
+ // Set the enter key on the keyboard to create the shortcut when editing the URL.
+ urlEditText.setOnKeyListener { _: View?, keyCode: Int, keyEvent: KeyEvent ->
+ // Check the key code, event, and button status.
+ if (keyEvent.action == KeyEvent.ACTION_DOWN && keyCode == KeyEvent.KEYCODE_ENTER && createButton.isEnabled) { // The event is a key-down on the enter key and the create button is enabled.
+ // Create the home screen shortcut.
+ createHomeScreenShortcut(favoriteIconBitmap)
+
+ // Manually dismiss the alert dialog.
+ alertDialog.dismiss()
+
+ // Consume the event.
+ return@setOnKeyListener true
+ } else { // Some other key was pressed or the create button is disabled.
+ // Do not consume the event.
+ return@setOnKeyListener false
+ }
+ }
+
+ // Return the alert dialog.
+ return alertDialog
+ }
+
+ private fun updateCreateButton(createButton: Button) {
+ // Get the contents of the edit texts.
+ val shortcutName = shortcutNameEditText.text.toString()
+ val urlString = urlEditText.text.toString()
+
+ // Enable the create button if both the shortcut name and the URL are not empty.
+ createButton.isEnabled = shortcutName.isNotEmpty() && urlString.isNotEmpty()
+ }
+
+ private fun createHomeScreenShortcut(favoriteIconBitmap: Bitmap) {
+ // Get a handle for the context.
+ val context = context!!
+
+ // Get the strings from the edit texts.
+ val shortcutName = shortcutNameEditText.text.toString()
+ val urlString = urlEditText.text.toString()
+
+ // Convert the favorite icon bitmap to an icon. `IconCompat` must be used until the minimum API >= 26.
+ val favoriteIcon = IconCompat.createWithBitmap(favoriteIconBitmap)
+
+ // Create a shortcut intent.
+ val shortcutIntent = Intent(Intent.ACTION_VIEW)
+
+ // Check to see if the shortcut should open up Privacy Browser explicitly.
+ if (openWithPrivacyBrowserRadioButton.isChecked) {
+ // Set the current application ID as the target package.
+ shortcutIntent.setPackage(BuildConfig.APPLICATION_ID)
+ }
+
+ // Add the URL to the intent.
+ shortcutIntent.data = Uri.parse(urlString)
+
+ // Create a shortcut info builder. The shortcut name becomes the shortcut ID.
+ val shortcutInfoBuilder = ShortcutInfoCompat.Builder(context, shortcutName)
+
+ // Add the required fields to the shortcut info builder.
+ shortcutInfoBuilder.setIcon(favoriteIcon)
+ shortcutInfoBuilder.setIntent(shortcutIntent)
+ shortcutInfoBuilder.setShortLabel(shortcutName)
+
+ // Add the shortcut to the home screen. `ShortcutManagerCompat` can be switched to `ShortcutManager` once the minimum API >= 26.
+ ShortcutManagerCompat.requestPinShortcut(context, shortcutInfoBuilder.build(), null)
+ }
+}
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projects / PrivacyBrowserAndroid.git / blobdiff