+ // Instantiate a handler.
+ Handler handler = new Handler();
+
+ // Get a message from the handler.
+ Message message = handler.obtainMessage();
+
+ // Request the image details from the last touched node be returned in the message.
+ currentWebView.requestFocusNodeHref(message);
+
+ // Get the link URL from the message data.
+ linkUrl = message.getData().getString("url");
+
+ // Set the link URL as the title of the context menu.
+ menu.setHeaderTitle(linkUrl);
+
+ // Add an Open in New Tab entry.
+ menu.add(R.string.open_in_new_tab).setOnMenuItemClickListener((MenuItem item) -> {
+ // Load the link URL in a new tab.
+ addNewTab(linkUrl, false);
+
+ // Consume the event.
+ return true;
+ });
+
+ // Add an Open Image in New Tab entry.
+ menu.add(R.string.open_image_in_new_tab).setOnMenuItemClickListener((MenuItem item) -> {
+ // Load the image in a new tab.
+ addNewTab(imageUrl, false);
+
+ // Consume the event.
+ return true;
+ });
+
+ // Add a View Image entry.
+ menu.add(R.string.view_image).setOnMenuItemClickListener((MenuItem item) -> {
+ // View the image in the current tab.
+ loadUrl(imageUrl);
+
+ // Consume the event.
+ return true;
+ });
+
+ // Add a Download Image entry.
+ menu.add(R.string.download_image).setOnMenuItemClickListener((MenuItem item) -> {
+ // Check if the download should be processed by an external app.
+ if (sharedPreferences.getBoolean("download_with_external_app", false)) { // Download with an external app.
+ openUrlWithExternalApp(imageUrl);
+ } else { // Download with Android's download manager.
+ // Check to see if the storage permission has already been granted.
+ if (ContextCompat.checkSelfPermission(this, Manifest.permission.WRITE_EXTERNAL_STORAGE) == PackageManager.PERMISSION_DENIED) { // The storage permission needs to be requested.
+ // Store the image URL for use by `onRequestPermissionResult()`.
+ downloadImageUrl = imageUrl;
+
+ // Show a dialog if the user has previously denied the permission.
+ if (ActivityCompat.shouldShowRequestPermissionRationale(this, Manifest.permission.WRITE_EXTERNAL_STORAGE)) { // Show a dialog explaining the request first.
+ // Instantiate the download location permission alert dialog and set the download type to DOWNLOAD_IMAGE.
+ DialogFragment downloadLocationPermissionDialogFragment = DownloadLocationPermissionDialog.downloadType(DownloadLocationPermissionDialog.DOWNLOAD_IMAGE);
+
+ // Show the download location permission alert dialog. The permission will be requested when the dialog is closed.
+ downloadLocationPermissionDialogFragment.show(fragmentManager, getString(R.string.download_location));
+ } else { // Show the permission request directly.
+ // Request the permission. The download dialog will be launched by `onRequestPermissionResult()`.
+ ActivityCompat.requestPermissions(this, new String[]{Manifest.permission.WRITE_EXTERNAL_STORAGE}, DOWNLOAD_IMAGE_REQUEST_CODE);
+ }
+ } else { // The storage permission has already been granted.
+ // Get a handle for the download image alert dialog.
+ DialogFragment downloadImageDialogFragment = DownloadImageDialog.imageUrl(imageUrl);
+
+ // Show the download image alert dialog.
+ downloadImageDialogFragment.show(fragmentManager, getString(R.string.download));
+ }
+ }
+
+ // Consume the event.
+ return true;
+ });
+
+ // Add a Copy URL entry.
+ menu.add(R.string.copy_url).setOnMenuItemClickListener((MenuItem item) -> {
+ // Save the link URL in a clip data.
+ ClipData srcImageAnchorTypeClipData = ClipData.newPlainText(getString(R.string.url), linkUrl);
+
+ // Set the clip data as the clipboard's primary clip.
+ clipboardManager.setPrimaryClip(srcImageAnchorTypeClipData);
+
+ // Consume the event.
+ return true;
+ });
+
+ // Add an Open with App entry.
+ menu.add(R.string.open_with_app).setOnMenuItemClickListener((MenuItem item) -> {
+ // Open the link URL with an external app.
+ openWithApp(linkUrl);
+
+ // Consume the event.
+ return true;
+ });
+
+ // Add an Open with Browser entry.
+ menu.add(R.string.open_with_browser).setOnMenuItemClickListener((MenuItem item) -> {
+ // Open the link URL with an external browser.
+ openWithBrowser(linkUrl);
+
+ // Consume the event.
+ return true;
+ });
+
+ // Add a cancel entry, which by default closes the context menu.
+ menu.add(R.string.cancel);
+ break;
+ }
+ }
+
+ @Override
+ public void onCreateBookmark(DialogFragment dialogFragment, Bitmap favoriteIconBitmap) {
+ // Get a handle for the bookmarks list view.
+ ListView bookmarksListView = findViewById(R.id.bookmarks_drawer_listview);
+
+ // Get the views from the dialog fragment.
+ EditText createBookmarkNameEditText = dialogFragment.getDialog().findViewById(R.id.create_bookmark_name_edittext);
+ EditText createBookmarkUrlEditText = dialogFragment.getDialog().findViewById(R.id.create_bookmark_url_edittext);
+
+ // Extract the strings from the edit texts.
+ String bookmarkNameString = createBookmarkNameEditText.getText().toString();
+ String bookmarkUrlString = createBookmarkUrlEditText.getText().toString();
+
+ // Create a favorite icon byte array output stream.
+ ByteArrayOutputStream favoriteIconByteArrayOutputStream = new ByteArrayOutputStream();
+
+ // Convert the favorite icon bitmap to a byte array. `0` is for lossless compression (the only option for a PNG).
+ favoriteIconBitmap.compress(Bitmap.CompressFormat.PNG, 0, favoriteIconByteArrayOutputStream);
+
+ // Convert the favorite icon byte array stream to a byte array.
+ byte[] favoriteIconByteArray = favoriteIconByteArrayOutputStream.toByteArray();
+
+ // Display the new bookmark below the current items in the (0 indexed) list.
+ int newBookmarkDisplayOrder = bookmarksListView.getCount();
+
+ // Create the bookmark.
+ bookmarksDatabaseHelper.createBookmark(bookmarkNameString, bookmarkUrlString, currentBookmarksFolder, newBookmarkDisplayOrder, favoriteIconByteArray);
+
+ // Update the bookmarks cursor with the current contents of this folder.
+ bookmarksCursor = bookmarksDatabaseHelper.getBookmarksByDisplayOrder(currentBookmarksFolder);
+
+ // Update the list view.
+ bookmarksCursorAdapter.changeCursor(bookmarksCursor);
+
+ // Scroll to the new bookmark.
+ bookmarksListView.setSelection(newBookmarkDisplayOrder);
+ }
+
+ @Override
+ public void onCreateBookmarkFolder(DialogFragment dialogFragment, Bitmap favoriteIconBitmap) {
+ // Get a handle for the bookmarks list view.
+ ListView bookmarksListView = findViewById(R.id.bookmarks_drawer_listview);
+
+ // Get handles for the views in the dialog fragment.
+ EditText createFolderNameEditText = dialogFragment.getDialog().findViewById(R.id.create_folder_name_edittext);
+ RadioButton defaultFolderIconRadioButton = dialogFragment.getDialog().findViewById(R.id.create_folder_default_icon_radiobutton);
+ ImageView folderIconImageView = dialogFragment.getDialog().findViewById(R.id.create_folder_default_icon);
+
+ // Get new folder name string.
+ String folderNameString = createFolderNameEditText.getText().toString();
+
+ // Create a folder icon bitmap.
+ Bitmap folderIconBitmap;
+
+ // Set the folder icon bitmap according to the dialog.
+ if (defaultFolderIconRadioButton.isChecked()) { // Use the default folder icon.
+ // Get the default folder icon drawable.
+ Drawable folderIconDrawable = folderIconImageView.getDrawable();
+
+ // Convert the folder icon drawable to a bitmap drawable.
+ BitmapDrawable folderIconBitmapDrawable = (BitmapDrawable) folderIconDrawable;
+
+ // Convert the folder icon bitmap drawable to a bitmap.
+ folderIconBitmap = folderIconBitmapDrawable.getBitmap();
+ } else { // Use the WebView favorite icon.
+ // Copy the favorite icon bitmap to the folder icon bitmap.
+ folderIconBitmap = favoriteIconBitmap;
+ }
+
+ // Create a folder icon byte array output stream.
+ ByteArrayOutputStream folderIconByteArrayOutputStream = new ByteArrayOutputStream();
+
+ // Convert the folder icon bitmap to a byte array. `0` is for lossless compression (the only option for a PNG).
+ folderIconBitmap.compress(Bitmap.CompressFormat.PNG, 0, folderIconByteArrayOutputStream);
+
+ // Convert the folder icon byte array stream to a byte array.
+ byte[] folderIconByteArray = folderIconByteArrayOutputStream.toByteArray();
+
+ // Move all the bookmarks down one in the display order.
+ for (int i = 0; i < bookmarksListView.getCount(); i++) {
+ int databaseId = (int) bookmarksListView.getItemIdAtPosition(i);
+ bookmarksDatabaseHelper.updateDisplayOrder(databaseId, i + 1);
+ }
+
+ // Create the folder, which will be placed at the top of the `ListView`.
+ bookmarksDatabaseHelper.createFolder(folderNameString, currentBookmarksFolder, folderIconByteArray);
+
+ // Update the bookmarks cursor with the current contents of this folder.
+ bookmarksCursor = bookmarksDatabaseHelper.getBookmarksByDisplayOrder(currentBookmarksFolder);
+
+ // Update the `ListView`.
+ bookmarksCursorAdapter.changeCursor(bookmarksCursor);
+
+ // Scroll to the new folder.
+ bookmarksListView.setSelection(0);
+ }
+
+ @Override
+ public void onSaveBookmark(DialogFragment dialogFragment, int selectedBookmarkDatabaseId, Bitmap favoriteIconBitmap) {
+ // Get handles for the views from `dialogFragment`.
+ EditText editBookmarkNameEditText = dialogFragment.getDialog().findViewById(R.id.edit_bookmark_name_edittext);
+ EditText editBookmarkUrlEditText = dialogFragment.getDialog().findViewById(R.id.edit_bookmark_url_edittext);
+ RadioButton currentBookmarkIconRadioButton = dialogFragment.getDialog().findViewById(R.id.edit_bookmark_current_icon_radiobutton);
+
+ // Store the bookmark strings.
+ String bookmarkNameString = editBookmarkNameEditText.getText().toString();
+ String bookmarkUrlString = editBookmarkUrlEditText.getText().toString();
+
+ // Update the bookmark.
+ if (currentBookmarkIconRadioButton.isChecked()) { // Update the bookmark without changing the favorite icon.
+ bookmarksDatabaseHelper.updateBookmark(selectedBookmarkDatabaseId, bookmarkNameString, bookmarkUrlString);
+ } else { // Update the bookmark using the `WebView` favorite icon.
+ // Create a favorite icon byte array output stream.
+ ByteArrayOutputStream newFavoriteIconByteArrayOutputStream = new ByteArrayOutputStream();
+
+ // Convert the favorite icon bitmap to a byte array. `0` is for lossless compression (the only option for a PNG).
+ favoriteIconBitmap.compress(Bitmap.CompressFormat.PNG, 0, newFavoriteIconByteArrayOutputStream);
+
+ // Convert the favorite icon byte array stream to a byte array.
+ byte[] newFavoriteIconByteArray = newFavoriteIconByteArrayOutputStream.toByteArray();
+
+ // Update the bookmark and the favorite icon.
+ bookmarksDatabaseHelper.updateBookmark(selectedBookmarkDatabaseId, bookmarkNameString, bookmarkUrlString, newFavoriteIconByteArray);
+ }
+
+ // Update the bookmarks cursor with the current contents of this folder.
+ bookmarksCursor = bookmarksDatabaseHelper.getBookmarksByDisplayOrder(currentBookmarksFolder);
+
+ // Update the list view.
+ bookmarksCursorAdapter.changeCursor(bookmarksCursor);
+ }
+
+ @Override
+ public void onSaveBookmarkFolder(DialogFragment dialogFragment, int selectedFolderDatabaseId, Bitmap favoriteIconBitmap) {
+ // Get handles for the views from `dialogFragment`.
+ EditText editFolderNameEditText = dialogFragment.getDialog().findViewById(R.id.edit_folder_name_edittext);
+ RadioButton currentFolderIconRadioButton = dialogFragment.getDialog().findViewById(R.id.edit_folder_current_icon_radiobutton);
+ RadioButton defaultFolderIconRadioButton = dialogFragment.getDialog().findViewById(R.id.edit_folder_default_icon_radiobutton);
+ ImageView defaultFolderIconImageView = dialogFragment.getDialog().findViewById(R.id.edit_folder_default_icon_imageview);
+
+ // Get the new folder name.
+ String newFolderNameString = editFolderNameEditText.getText().toString();
+
+ // Check if the favorite icon has changed.
+ if (currentFolderIconRadioButton.isChecked()) { // Only the name has changed.
+ // Update the name in the database.
+ bookmarksDatabaseHelper.updateFolder(selectedFolderDatabaseId, oldFolderNameString, newFolderNameString);
+ } else if (!currentFolderIconRadioButton.isChecked() && newFolderNameString.equals(oldFolderNameString)) { // Only the icon has changed.
+ // Create the new folder icon Bitmap.
+ Bitmap folderIconBitmap;
+
+ // Populate the new folder icon bitmap.
+ if (defaultFolderIconRadioButton.isChecked()) {
+ // Get the default folder icon drawable.
+ Drawable folderIconDrawable = defaultFolderIconImageView.getDrawable();
+
+ // Convert the folder icon drawable to a bitmap drawable.
+ BitmapDrawable folderIconBitmapDrawable = (BitmapDrawable) folderIconDrawable;
+
+ // Convert the folder icon bitmap drawable to a bitmap.
+ folderIconBitmap = folderIconBitmapDrawable.getBitmap();
+ } else { // Use the `WebView` favorite icon.
+ // Copy the favorite icon bitmap to the folder icon bitmap.
+ folderIconBitmap = favoriteIconBitmap;
+ }
+
+ // Create a folder icon byte array output stream.
+ ByteArrayOutputStream newFolderIconByteArrayOutputStream = new ByteArrayOutputStream();
+
+ // Convert the folder icon bitmap to a byte array. `0` is for lossless compression (the only option for a PNG).
+ folderIconBitmap.compress(Bitmap.CompressFormat.PNG, 0, newFolderIconByteArrayOutputStream);
+
+ // Convert the folder icon byte array stream to a byte array.
+ byte[] newFolderIconByteArray = newFolderIconByteArrayOutputStream.toByteArray();
+
+ // Update the folder icon in the database.
+ bookmarksDatabaseHelper.updateFolder(selectedFolderDatabaseId, newFolderIconByteArray);
+ } else { // The folder icon and the name have changed.
+ // Get the new folder icon `Bitmap`.
+ Bitmap folderIconBitmap;
+ if (defaultFolderIconRadioButton.isChecked()) {
+ // Get the default folder icon drawable.
+ Drawable folderIconDrawable = defaultFolderIconImageView.getDrawable();
+
+ // Convert the folder icon drawable to a bitmap drawable.
+ BitmapDrawable folderIconBitmapDrawable = (BitmapDrawable) folderIconDrawable;
+
+ // Convert the folder icon bitmap drawable to a bitmap.
+ folderIconBitmap = folderIconBitmapDrawable.getBitmap();
+ } else { // Use the `WebView` favorite icon.
+ // Copy the favorite icon bitmap to the folder icon bitmap.
+ folderIconBitmap = favoriteIconBitmap;
+ }
+
+ // Create a folder icon byte array output stream.
+ ByteArrayOutputStream newFolderIconByteArrayOutputStream = new ByteArrayOutputStream();
+
+ // Convert the folder icon bitmap to a byte array. `0` is for lossless compression (the only option for a PNG).
+ folderIconBitmap.compress(Bitmap.CompressFormat.PNG, 0, newFolderIconByteArrayOutputStream);
+
+ // Convert the folder icon byte array stream to a byte array.
+ byte[] newFolderIconByteArray = newFolderIconByteArrayOutputStream.toByteArray();
+
+ // Update the folder name and icon in the database.
+ bookmarksDatabaseHelper.updateFolder(selectedFolderDatabaseId, oldFolderNameString, newFolderNameString, newFolderIconByteArray);
+ }
+
+ // Update the bookmarks cursor with the current contents of this folder.
+ bookmarksCursor = bookmarksDatabaseHelper.getBookmarksByDisplayOrder(currentBookmarksFolder);
+
+ // Update the `ListView`.
+ bookmarksCursorAdapter.changeCursor(bookmarksCursor);
+ }
+
+ @Override
+ public void onCloseDownloadLocationPermissionDialog(int downloadType) {
+ switch (downloadType) {
+ case DownloadLocationPermissionDialog.DOWNLOAD_FILE:
+ // Request the WRITE_EXTERNAL_STORAGE permission with a file request code.
+ ActivityCompat.requestPermissions(this, new String[] {Manifest.permission.WRITE_EXTERNAL_STORAGE}, DOWNLOAD_FILE_REQUEST_CODE);
+ break;
+
+ case DownloadLocationPermissionDialog.DOWNLOAD_IMAGE:
+ // Request the WRITE_EXTERNAL_STORAGE permission with an image request code.
+ ActivityCompat.requestPermissions(this, new String[] {Manifest.permission.WRITE_EXTERNAL_STORAGE}, DOWNLOAD_IMAGE_REQUEST_CODE);
+ break;
+ }
+ }
+
+ @Override
+ public void onRequestPermissionsResult(int requestCode, @NonNull String[] permissions, @NonNull int[] grantResults) {
+ // Get a handle for the fragment manager.
+ FragmentManager fragmentManager = getSupportFragmentManager();
+
+ switch (requestCode) {
+ case DOWNLOAD_FILE_REQUEST_CODE:
+ // Show the download file alert dialog. When the dialog closes, the correct command will be used based on the permission status.
+ DialogFragment downloadFileDialogFragment = DownloadFileDialog.fromUrl(downloadUrl, downloadContentDisposition, downloadContentLength);
+
+ // On API 23, displaying the fragment must be delayed or the app will crash.
+ if (Build.VERSION.SDK_INT == 23) {
+ new Handler().postDelayed(() -> downloadFileDialogFragment.show(fragmentManager, getString(R.string.download)), 500);
+ } else {
+ downloadFileDialogFragment.show(fragmentManager, getString(R.string.download));
+ }
+
+ // Reset the download variables.
+ downloadUrl = "";
+ downloadContentDisposition = "";
+ downloadContentLength = 0;
+ break;
+
+ case DOWNLOAD_IMAGE_REQUEST_CODE:
+ // Show the download image alert dialog. When the dialog closes, the correct command will be used based on the permission status.
+ DialogFragment downloadImageDialogFragment = DownloadImageDialog.imageUrl(downloadImageUrl);
+
+ // On API 23, displaying the fragment must be delayed or the app will crash.
+ if (Build.VERSION.SDK_INT == 23) {
+ new Handler().postDelayed(() -> downloadImageDialogFragment.show(fragmentManager, getString(R.string.download)), 500);
+ } else {
+ downloadImageDialogFragment.show(fragmentManager, getString(R.string.download));
+ }
+
+ // Reset the image URL variable.
+ downloadImageUrl = "";
+ break;
+
+ case SAVE_WEBPAGE_IMAGE_REQUEST_CODE:
+ // Check to see if the storage permission was granted. If the dialog was canceled the grant result will be empty.
+ if ((grantResults.length > 0) && (grantResults[0] == PackageManager.PERMISSION_GRANTED)) { // The storage permission was granted.
+ // Save the webpage image.
+ new SaveWebpageImage(this, currentWebView).execute(saveWebsiteImageFilePath);
+ } else { // The storage permission was not granted.
+ // Display an error snackbar.
+ Snackbar.make(currentWebView, getString(R.string.cannot_use_location), Snackbar.LENGTH_LONG).show();
+ }
+
+ // Reset the save website image file path.
+ saveWebsiteImageFilePath = "";
+ break;
+ }
+ }
+
+ @Override
+ public void onDownloadImage(DialogFragment dialogFragment, String imageUrl) {
+ // Download the image if it has an HTTP or HTTPS URI.
+ if (imageUrl.startsWith("http")) {
+ // Get a handle for the system `DOWNLOAD_SERVICE`.
+ DownloadManager downloadManager = (DownloadManager) getSystemService(DOWNLOAD_SERVICE);
+
+ // Parse `imageUrl`.
+ DownloadManager.Request downloadRequest = new DownloadManager.Request(Uri.parse(imageUrl));