--- /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.dialogs
+
+import android.annotation.SuppressLint
+import android.app.Dialog
+import android.content.Context
+import android.content.DialogInterface
+import android.graphics.drawable.BitmapDrawable
+import android.os.Bundle
+import android.view.View
+import android.view.WindowManager
+import android.widget.AdapterView
+import android.widget.AdapterView.OnItemClickListener
+import android.widget.ListView
+import android.widget.TextView
+
+import androidx.appcompat.app.AlertDialog
+import androidx.core.content.ContextCompat
+import androidx.fragment.app.DialogFragment
+import androidx.preference.PreferenceManager
+
+import com.stoutner.privacybrowser.R
+import com.stoutner.privacybrowser.activities.MainWebViewActivity
+import com.stoutner.privacybrowser.adapters.HistoryArrayAdapter
+import com.stoutner.privacybrowser.definitions.History
+import com.stoutner.privacybrowser.views.NestedScrollWebView
+
+// Define the class constants.
+private const val WEBVIEW_FRAGMENT_ID = "webview_fragment_id"
+
+class UrlHistoryDialog : DialogFragment() {
+ // Declare the class variables.
+ private lateinit var navigateHistoryListener: NavigateHistoryListener
+
+ // The public interface is used to send information back to the parent activity.
+ interface NavigateHistoryListener {
+ fun navigateHistory(url: String, steps: Int)
+ }
+
+ override fun onAttach(context: Context) {
+ // Run the default commands.
+ super.onAttach(context)
+
+ // Get a handle for the listener from the launching context.
+ navigateHistoryListener = context as NavigateHistoryListener
+ }
+
+ companion object {
+ // `@JvmStatic` will no longer be required once all the code has transitioned to Kotlin.
+ @JvmStatic
+ fun loadBackForwardList(webViewFragmentId: Long): UrlHistoryDialog {
+ // Create an arguments bundle.
+ val argumentsBundle = Bundle()
+
+ // Store the WebView fragment ID in the bundle.
+ argumentsBundle.putLong(WEBVIEW_FRAGMENT_ID, webViewFragmentId)
+
+ // Create a new instance of the URL history dialog.
+ val urlHistoryDialog = UrlHistoryDialog()
+
+ // Add the arguments bundle to the new dialog.
+ urlHistoryDialog.arguments = argumentsBundle
+
+ // Return the new dialog.
+ return urlHistoryDialog
+ }
+ }
+
+ // `@SuppressLint("InflateParams")` removes the warning about using null as the parent view group when inflating the alert dialog.
+ @SuppressLint("InflateParams")
+ override fun onCreateDialog(savedInstanceState: Bundle?): Dialog {
+ // Get the WebView fragment ID from the arguments.
+ val webViewFragmentId = requireArguments().getLong(WEBVIEW_FRAGMENT_ID)
+
+ // Get the current position of this WebView fragment.
+ val webViewPosition = MainWebViewActivity.webViewPagerAdapter.getPositionForId(webViewFragmentId)
+
+ // Get the WebView tab fragment.
+ val webViewTabFragment = MainWebViewActivity.webViewPagerAdapter.getPageFragment(webViewPosition)
+
+ // Get the fragment view.
+ val fragmentView = webViewTabFragment.requireView()
+
+ // Get a handle for the current nested scroll WebView.
+ val nestedScrollWebView: NestedScrollWebView = fragmentView.findViewById(R.id.nestedscroll_webview)
+
+ // Get the web back forward list from the nested scroll WebView.
+ val webBackForwardList = nestedScrollWebView.copyBackForwardList()
+
+ // Store the current page index.
+ val currentPageIndex = webBackForwardList.currentIndex
+
+ // Get the default favorite icon drawable. `ContextCompat` must be used until the minimum API >= 21.
+ val defaultFavoriteIconDrawable = ContextCompat.getDrawable(requireContext(), R.drawable.world)
+
+ // Convert the default favorite icon drawable to a bitmap drawable.
+ val defaultFavoriteIconBitmapDrawable = (defaultFavoriteIconDrawable as BitmapDrawable)
+
+ // Extract a bitmap from the default favorite icon bitmap drawable.
+ val defaultFavoriteIcon = defaultFavoriteIconBitmapDrawable.bitmap
+
+ // Create a history array list.
+ val historyArrayList = ArrayList<History>()
+
+ // Populate the history array list, descending from the end of the list so that the newest entries are at the top. `-1` is needed because the history array list is zero-based.
+ for (i in webBackForwardList.size - 1 downTo 0) {
+ // Store the favorite icon bitmap.
+ val favoriteIconBitmap = if (webBackForwardList.getItemAtIndex(i).favicon == null) {
+ // If the web back forward list does not have a favorite icon, use Privacy Browser's default world icon.
+ defaultFavoriteIcon
+ } else { // Use the icon from the web back forward list.
+ webBackForwardList.getItemAtIndex(i).favicon
+ }
+
+ // Store the favorite icon and the URL in history entry.
+ val historyEntry = History(favoriteIconBitmap, webBackForwardList.getItemAtIndex(i).url)
+
+ // Add this history entry to the history array list.
+ historyArrayList.add(historyEntry)
+ }
+
+ // Subtract the original current page ID from the array size because the order of the array is reversed so that the newest entries are at the top. `-1` is needed because the array is zero-based.
+ val currentPageId = webBackForwardList.size - 1 - currentPageIndex
+
+ // 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.history)
+
+ // Set the view. The parent view is `null` because it will be assigned by the alert dialog.
+ dialogBuilder.setView(layoutInflater.inflate(R.layout.url_history_dialog, null))
+
+ // Setup the clear history button listener.
+ dialogBuilder.setNegativeButton(R.string.clear_history) { _: DialogInterface, _: Int ->
+ // Clear the history.
+ nestedScrollWebView.clearHistory()
+ }
+
+ // Set the close button listener. Using `null` as the listener closes the dialog without doing anything else.
+ dialogBuilder.setPositiveButton(R.string.close, null)
+
+ // Create an alert dialog from the alert dialog 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) {
+ // Disable screenshots.
+ alertDialog.window!!.addFlags(WindowManager.LayoutParams.FLAG_SECURE)
+ }
+
+ //The alert dialog must be shown before the contents can be modified.
+ alertDialog.show()
+
+ // Instantiate a history array adapter.
+ val historyArrayAdapter = HistoryArrayAdapter(context, historyArrayList, currentPageId)
+
+ // Get a handle for the list view.
+ val listView = alertDialog.findViewById<ListView>(R.id.history_listview)!!
+
+ // Set the list view adapter.
+ listView.adapter = historyArrayAdapter
+
+ // Listen for clicks on entries in the list view.
+ listView.onItemClickListener = OnItemClickListener { _: AdapterView<*>?, view: View, _: Int, id: Long ->
+ // Convert the long ID to an int.
+ val itemId = id.toInt()
+
+ // Only consume the click if it is not on the current page ID.
+ if (itemId != currentPageId) {
+ // Get a handle for the URL text view.
+ val urlTextView = view.findViewById<TextView>(R.id.history_url_textview)
+
+ // Get the URL.
+ val url = urlTextView.text.toString()
+
+ // Invoke the navigate history listener in the calling activity. These commands cannot be run here because they need access to `applyDomainSettings()`.
+ navigateHistoryListener.navigateHistory(url, currentPageId - itemId)
+
+ // Dismiss the alert dialog.
+ alertDialog.dismiss()
+ }
+ }
+
+ // Return the alert dialog.
+ return alertDialog
+ }
+}
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projects / PrivacyBrowserAndroid.git / blobdiff