--- /dev/null
+/*
+ * Copyright © 2019-2021 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.dialogs
+
+import android.app.Dialog
+import android.content.Context
+import android.content.DialogInterface
+import android.os.AsyncTask
+import android.os.Bundle
+import android.text.Editable
+import android.text.InputType
+import android.text.TextWatcher
+import android.view.WindowManager
+import android.widget.EditText
+import android.widget.TextView
+
+import androidx.appcompat.app.AlertDialog
+import androidx.fragment.app.DialogFragment
+import androidx.preference.PreferenceManager
+
+import com.stoutner.privacybrowser.R
+import com.stoutner.privacybrowser.asynctasks.GetUrlSize
+
+// Define the class constants.
+private const val URL_STRING = "url_string"
+private const val FILE_SIZE_STRING = "file_size_string"
+private const val FILE_NAME_STRING = "file_name_string"
+private const val USER_AGENT_STRING = "user_agent_string"
+private const val COOKIES_ENABLED = "cookies_enabled"
+
+class SaveDialog : DialogFragment() {
+ // Declare the class variables.
+ private lateinit var saveListener: SaveListener
+
+ // Define the class variables.
+ private var getUrlSize: AsyncTask<*, *, *>? = null
+
+ // The public interface is used to send information back to the parent activity.
+ interface SaveListener {
+ fun onSaveUrl(originalUrlString: String, fileNameString: String, dialogFragment: DialogFragment)
+ }
+
+ override fun onAttach(context: Context) {
+ // Run the default commands.
+ super.onAttach(context)
+
+ // Get a handle for the save webpage listener from the launching context.
+ saveListener = context as SaveListener
+ }
+
+ companion object {
+ // `@JvmStatic` will no longer be required once all the code has transitioned to Kotlin.
+ @JvmStatic
+ fun saveUrl(urlString: String, fileSizeString: String, fileNameString: String, userAgentString: String, cookiesEnabled: Boolean): SaveDialog {
+ // Create an arguments bundle.
+ val argumentsBundle = Bundle()
+
+ // Store the arguments in the bundle.
+ argumentsBundle.putString(URL_STRING, urlString)
+ argumentsBundle.putString(FILE_SIZE_STRING, fileSizeString)
+ argumentsBundle.putString(FILE_NAME_STRING, fileNameString)
+ argumentsBundle.putString(USER_AGENT_STRING, userAgentString)
+ argumentsBundle.putBoolean(COOKIES_ENABLED, cookiesEnabled)
+
+ // Create a new instance of the save webpage dialog.
+ val saveDialog = SaveDialog()
+
+ // Add the arguments bundle to the new dialog.
+ saveDialog.arguments = argumentsBundle
+
+ // Return the new dialog.
+ return saveDialog
+ }
+ }
+
+ override fun onCreateDialog(savedInstanceState: Bundle?): Dialog {
+ // Get the arguments from the bundle.
+ val originalUrlString = requireArguments().getString(URL_STRING)!!
+ val fileSizeString = requireArguments().getString(FILE_SIZE_STRING)!!
+ val fileNameString = requireArguments().getString(FILE_NAME_STRING)!!
+ val userAgentString = requireArguments().getString(USER_AGENT_STRING)!!
+ val cookiesEnabled = requireArguments().getBoolean(COOKIES_ENABLED)
+
+ // Use an alert dialog builder to create the alert dialog.
+ val dialogBuilder = AlertDialog.Builder(requireContext(), R.style.PrivacyBrowserAlertDialog)
+
+ // Set the title.
+ dialogBuilder.setTitle(R.string.save_url)
+
+ // Set the icon according to the theme.
+ dialogBuilder.setIconAttribute(R.attr.copyBlueIcon)
+
+ // Set the view.
+ dialogBuilder.setView(R.layout.save_dialog)
+
+ // Set the cancel button listener. Using `null` as the listener closes the dialog without doing anything else.
+ dialogBuilder.setNegativeButton(R.string.cancel, null)
+
+ // Set the save button listener.
+ dialogBuilder.setPositiveButton(R.string.save) { _: DialogInterface, _: Int ->
+ // Return the dialog fragment to the parent activity.
+ saveListener.onSaveUrl(originalUrlString, fileNameString, this)
+ }
+
+ // Create an alert dialog from the builder.
+ val alertDialog = dialogBuilder.create()
+
+ // Get a handle for the shared preferences.
+ val sharedPreferences = PreferenceManager.getDefaultSharedPreferences(context)
+
+ // Get the screenshot preference.
+ val allowScreenshots = sharedPreferences.getBoolean(getString(R.string.allow_screenshots_key), false)
+
+ // Disable screenshots if not allowed.
+ if (!allowScreenshots) {
+ alertDialog.window!!.addFlags(WindowManager.LayoutParams.FLAG_SECURE)
+ }
+
+ // The alert dialog must be shown before items in the layout can be modified.
+ alertDialog.show()
+
+ // Get handles for the layout items.
+ val urlEditText = alertDialog.findViewById<EditText>(R.id.url_edittext)!!
+ val fileSizeTextView = alertDialog.findViewById<TextView>(R.id.file_size_textview)!!
+ val saveButton = alertDialog.getButton(AlertDialog.BUTTON_POSITIVE)
+
+ // Set the file size text view.
+ fileSizeTextView.text = fileSizeString
+
+ // Populate the URL edit text according to the type. This must be done before the text change listener is created below so that the file size isn't requested again.
+ if (originalUrlString.startsWith("data:")) { // The URL contains the entire data of an image.
+ // Get a substring of the data URL with the first 100 characters. Otherwise, the user interface will freeze while trying to layout the edit text.
+ val urlSubstring = originalUrlString.substring(0, 100) + "…"
+
+ // Populate the URL edit text with the truncated URL.
+ urlEditText.setText(urlSubstring)
+
+ // Disable the editing of the URL edit text.
+ urlEditText.inputType = InputType.TYPE_NULL
+ } else { // The URL contains a reference to the location of the data.
+ // Populate the URL edit text with the full URL.
+ urlEditText.setText(originalUrlString)
+ }
+
+ // Update the file size when the URL changes.
+ urlEditText.addTextChangedListener(object : TextWatcher {
+ override fun beforeTextChanged(charSequence: CharSequence, i: Int, i1: Int, i2: Int) {
+ // Do nothing.
+ }
+
+ override fun onTextChanged(charSequence: CharSequence, i: Int, i1: Int, i2: Int) {
+ // Do nothing.
+ }
+
+ override fun afterTextChanged(editable: Editable) {
+ // Cancel the get URL size AsyncTask if it is running.
+ if (getUrlSize != null) {
+ getUrlSize!!.cancel(true)
+ }
+
+ // Get the current URL to save.
+ val urlToSave = urlEditText.text.toString()
+
+ // Wipe the file size text view.
+ fileSizeTextView.text = ""
+
+ // Get the file size for the current URL.
+ getUrlSize = GetUrlSize(context, alertDialog, userAgentString, cookiesEnabled).execute(urlToSave)
+
+ // Enable the save button if the URL is populated.
+ saveButton.isEnabled = urlToSave.isNotEmpty()
+ }
+ })
+
+ // Return the alert dialog.
+ return alertDialog
+ }
+}
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projects / PrivacyBrowserAndroid.git / blobdiff