X-Git-Url: https://gitweb.stoutner.com/?p=PrivacyBrowserAndroid.git;a=blobdiff_plain;f=app%2Fsrc%2Fmain%2Fjava%2Fcom%2Fstoutner%2Fprivacybrowser%2Fdialogs%2FEditBookmarkDialog.java;h=6eddfc947dec5f707a12f36b764e8d15d48a1afc;hp=117d58400eb67c36775b6410cb9fe2b968ac8407;hb=55169899d6454cd57e40d32a792735df51caee85;hpb=5bcf4ca90f27512b94fb7aca4fad37b4e4774655 diff --git a/app/src/main/java/com/stoutner/privacybrowser/dialogs/EditBookmarkDialog.java b/app/src/main/java/com/stoutner/privacybrowser/dialogs/EditBookmarkDialog.java index 117d5840..6eddfc94 100644 --- a/app/src/main/java/com/stoutner/privacybrowser/dialogs/EditBookmarkDialog.java +++ b/app/src/main/java/com/stoutner/privacybrowser/dialogs/EditBookmarkDialog.java @@ -1,5 +1,5 @@ /* - * Copyright © 2016-2017 Soren Stoutner . + * Copyright © 2016-2019 Soren Stoutner . * * This file is part of Privacy Browser . * @@ -28,38 +28,61 @@ import android.database.Cursor; import android.graphics.Bitmap; import android.graphics.BitmapFactory; import android.os.Bundle; -import android.support.annotation.NonNull; -// We have to use `AppCompatDialogFragment` instead of `DialogFragment` or an error is produced on API <=22. -import android.support.v7.app.AppCompatDialogFragment; +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.ImageView; +import android.widget.RadioButton; +import android.widget.RadioGroup; + +import androidx.annotation.NonNull; +import androidx.fragment.app.DialogFragment; // The AndroidX dialog fragment must be used or an error is produced on API <=22. -import com.stoutner.privacybrowser.activities.BookmarksActivity; -import com.stoutner.privacybrowser.activities.MainWebViewActivity; import com.stoutner.privacybrowser.R; +import com.stoutner.privacybrowser.activities.MainWebViewActivity; import com.stoutner.privacybrowser.helpers.BookmarksDatabaseHelper; -public class EditBookmarkDialog extends AppCompatDialogFragment { +public class EditBookmarkDialog extends DialogFragment { + // Instantiate the class variables. + private EditBookmarkListener editBookmarkListener; + private EditText nameEditText; + private EditText urlEditText; + private RadioButton newIconRadioButton; + private Button editButton; + private String currentName; + private String currentUrl; + // The public interface is used to send information back to the parent activity. public interface EditBookmarkListener { - void onSaveEditBookmark(AppCompatDialogFragment dialogFragment); + void onSaveBookmark(DialogFragment dialogFragment, int selectedBookmarkDatabaseId); } - // `editBookmarkListener` is used in `onAttach()` and `onCreateDialog()` - private EditBookmarkListener editBookmarkListener; - public void onAttach(Context context) { + // Run the default commands. super.onAttach(context); - // Get a handle for `EditBookmarkListener` from `context`. - try { - editBookmarkListener = (EditBookmarkListener) context; - } catch(ClassCastException exception) { - throw new ClassCastException(context.toString() + " must implement EditBookmarkListener."); - } + // Get a handle for `EditBookmarkListener` from the launching context. + editBookmarkListener = (EditBookmarkListener) context; + } + + // Store the database ID in the arguments bundle. + public static EditBookmarkDialog bookmarkDatabaseId(int databaseId) { + // Create a bundle. + Bundle bundle = new Bundle(); + + // Store the bookmark database ID in the bundle. + bundle.putInt("Database ID", databaseId); + + // Add the bundle to the dialog. + EditBookmarkDialog editBookmarkDialog = new EditBookmarkDialog(); + editBookmarkDialog.setArguments(bundle); + + // Return the new dialog. + return editBookmarkDialog; } // `@SuppressLing("InflateParams")` removes the warning about using `null` as the parent view group when inflating the `AlertDialog`. @@ -67,15 +90,20 @@ public class EditBookmarkDialog extends AppCompatDialogFragment { @Override @NonNull public Dialog onCreateDialog(Bundle savedInstanceState) { - // Get a long array with the the databaseId of the selected bookmark and convert it to an `int`. - long[] selectedBookmarkLongArray = BookmarksActivity.checkedItemIds; - int selectedBookmarkDatabaseId = (int) selectedBookmarkLongArray[0]; + // Remove the incorrect lint warning that `getInt()` might be null. + assert getArguments() != null; + + // Store the bookmark database ID in the class variable. + int selectedBookmarkDatabaseId = getArguments().getInt("Database ID"); - // Get a `Cursor` with the specified bookmark and move it to the first position. - Cursor bookmarkCursor = BookmarksActivity.bookmarksDatabaseHelper.getBookmarkCursor(selectedBookmarkDatabaseId); + // Initialize the database helper. The `0` specifies a database version, but that is ignored and set instead using a constant in `BookmarksDatabaseHelper`. + BookmarksDatabaseHelper bookmarksDatabaseHelper = new BookmarksDatabaseHelper(getContext(), null, null, 0); + + // Get a `Cursor` with the selected bookmark and move it to the first position. + Cursor bookmarkCursor = bookmarksDatabaseHelper.getBookmark(selectedBookmarkDatabaseId); bookmarkCursor.moveToFirst(); - // Use `AlertDialog.Builder` to create the `AlertDialog`. + // Use an alert dialog builder to create the alert dialog. AlertDialog.Builder dialogBuilder; // Set the style according to the theme. @@ -88,95 +116,174 @@ public class EditBookmarkDialog extends AppCompatDialogFragment { // Set the title. dialogBuilder.setTitle(R.string.edit_bookmark); - // Set the view. The parent view is `null` because it will be assigned by `AlertDialog`. + // Remove the incorrect lint warning that `getActivity().getLayoutInflater()` might be null. + assert getActivity() != null; + + // Set the view. The parent view is null because it will be assigned by the alert dialog. dialogBuilder.setView(getActivity().getLayoutInflater().inflate(R.layout.edit_bookmark_dialog, null)); - // Set an `onClick()` listener for the negative button. - dialogBuilder.setNegativeButton(R.string.cancel, new Dialog.OnClickListener() { - @Override - public void onClick(DialogInterface dialog, int which) { - // Do nothing. The `AlertDialog` will close automatically. - } + // Set the cancel button listener. + dialogBuilder.setNegativeButton(R.string.cancel, (DialogInterface dialog, int which) -> { + // Do nothing. The alert dialog will close automatically. }); - // Set the `onClick()` listener fo the positive button. - dialogBuilder.setPositiveButton(R.string.save, new Dialog.OnClickListener() { - @Override - public void onClick(DialogInterface dialog, int which) { - // Return the `DialogFragment` to the parent activity on save. - editBookmarkListener.onSaveEditBookmark(EditBookmarkDialog.this); - } + // Set the save button listener. + dialogBuilder.setPositiveButton(R.string.save, (DialogInterface dialog, int which) -> { + // Return the dialog fragment to the parent activity. + editBookmarkListener.onSaveBookmark(EditBookmarkDialog.this, selectedBookmarkDatabaseId); }); - - // Create an `AlertDialog` from the `AlertDialog.Builder`. + // Create an alert dialog from the builder. final AlertDialog alertDialog = dialogBuilder.create(); - // Remove the warning below that `setSoftInputMode` might produce `java.lang.NullPointerException`. + // remove the incorrect lint warning below that `getWindow().addFlags()` might be null. assert alertDialog.getWindow() != null; - // Show the keyboard when `alertDialog` is displayed on the screen. - alertDialog.getWindow().setSoftInputMode(WindowManager.LayoutParams.SOFT_INPUT_STATE_ALWAYS_VISIBLE); + // Disable screenshots if not allowed. + if (!MainWebViewActivity.allowScreenshots) { + alertDialog.getWindow().addFlags(WindowManager.LayoutParams.FLAG_SECURE); + } - // We need to show the `AlertDialog` before we can modify items in the layout. + // The alert dialog must be shown before items in the layout can be modified. alertDialog.show(); - // Get the current favorite icon byte array from the `Cursor`. + // Get handles for the layout items. + RadioGroup iconRadioGroup = alertDialog.findViewById(R.id.edit_bookmark_icon_radiogroup); + ImageView currentIconImageView = alertDialog.findViewById(R.id.edit_bookmark_current_icon); + ImageView newFavoriteIconImageView = alertDialog.findViewById(R.id.edit_bookmark_webpage_favorite_icon); + newIconRadioButton = alertDialog.findViewById(R.id.edit_bookmark_webpage_favorite_icon_radiobutton); + nameEditText = alertDialog.findViewById(R.id.edit_bookmark_name_edittext); + urlEditText = alertDialog.findViewById(R.id.edit_bookmark_url_edittext); + editButton = alertDialog.getButton(AlertDialog.BUTTON_POSITIVE); + + // Get the current favorite icon byte array from the cursor. byte[] currentIconByteArray = bookmarkCursor.getBlob(bookmarkCursor.getColumnIndex(BookmarksDatabaseHelper.FAVORITE_ICON)); - // Convert the byte array to a `Bitmap` beginning at the first byte and ending at the last. + + // Convert the byte array to a bitmap beginning at the first byte and ending at the last. Bitmap currentIconBitmap = BitmapFactory.decodeByteArray(currentIconByteArray, 0, currentIconByteArray.length); - // Display `currentIconBitmap` in `edit_bookmark_current_icon`. - ImageView currentIconImageView = (ImageView) alertDialog.findViewById(R.id.edit_bookmark_current_icon); + + // Display the current icon bitmap. currentIconImageView.setImageBitmap(currentIconBitmap); - // Get a `Bitmap` of the favorite icon from `MainWebViewActivity` and display it in `edit_bookmark_web_page_favorite_icon`. - ImageView newFavoriteIconImageView = (ImageView) alertDialog.findViewById(R.id.edit_bookmark_web_page_favorite_icon); - newFavoriteIconImageView.setImageBitmap(MainWebViewActivity.favoriteIconBitmap); + // Get a copy of the favorite icon bitmap. + Bitmap favoriteIconBitmap = MainWebViewActivity.favoriteIconBitmap; + + // Scale the favorite icon bitmap down if it is larger than 256 x 256. Filtering uses bilinear interpolation. + if ((favoriteIconBitmap.getHeight() > 256) || (favoriteIconBitmap.getWidth() > 256)) { + favoriteIconBitmap = Bitmap.createScaledBitmap(favoriteIconBitmap, 256, 256, true); + } + + // Set the new favorite icon bitmap. + newFavoriteIconImageView.setImageBitmap(favoriteIconBitmap); - // Load the text for `edit_bookmark_name_edittext`. - EditText bookmarkNameEditText = (EditText) alertDialog.findViewById(R.id.edit_bookmark_name_edittext); - bookmarkNameEditText.setText(bookmarkCursor.getString(bookmarkCursor.getColumnIndex(BookmarksDatabaseHelper.BOOKMARK_NAME))); + // Store the current bookmark name and URL. + currentName = bookmarkCursor.getString(bookmarkCursor.getColumnIndex(BookmarksDatabaseHelper.BOOKMARK_NAME)); + currentUrl = bookmarkCursor.getString(bookmarkCursor.getColumnIndex(BookmarksDatabaseHelper.BOOKMARK_URL)); + + // Populate the edit texts. + nameEditText.setText(currentName); + urlEditText.setText(currentUrl); + + // Initially disable the edit button. + editButton.setEnabled(false); + + // Update the edit button if the icon selection changes. + iconRadioGroup.setOnCheckedChangeListener((RadioGroup group, int checkedId) -> { + // Update the edit button. + updateEditButton(); + }); + + // Update the edit button if the bookmark name changes. + nameEditText.addTextChangedListener(new TextWatcher() { + @Override + public void beforeTextChanged(CharSequence s, int start, int count, int after) { + // Do nothing. + } + + @Override + public void onTextChanged(CharSequence s, int start, int before, int count) { + // Do nothing. + } + + @Override + public void afterTextChanged(Editable s) { + // Update the edit button. + updateEditButton(); + } + }); + + // Update the edit button if the URL changes. + urlEditText.addTextChangedListener(new TextWatcher() { + @Override + public void beforeTextChanged(CharSequence s, int start, int count, int after) { + // Do nothing. + } + + @Override + public void onTextChanged(CharSequence s, int start, int before, int count) { + // Do nothing. + } - // Allow the `enter` key on the keyboard to save the bookmark from `edit_bookmark_name_edittext`. - bookmarkNameEditText.setOnKeyListener(new View.OnKeyListener() { @Override - public boolean onKey(View v, int keyCode, KeyEvent event) { - // If the event is an `ACTION_DOWN` on the `enter` key, save the bookmark. - if ((event.getAction() == KeyEvent.ACTION_DOWN) && (keyCode == KeyEvent.KEYCODE_ENTER)) { - // Trigger `onSaveEditBookmark()` and return the `DialogFragment` to the parent activity. - editBookmarkListener.onSaveEditBookmark(EditBookmarkDialog.this); - // Manually dismiss `alertDialog`. - alertDialog.dismiss(); - // Consume the event. - return true; - } else { // If any other key was pressed, do not consume the event. - return false; - } + public void afterTextChanged(Editable s) { + // Update the edit button. + updateEditButton(); } }); - // Load the text for `edit_bookmark_url_edittext`. - EditText bookmarkUrlEditText = (EditText) alertDialog.findViewById(R.id.edit_bookmark_url_edittext); - bookmarkUrlEditText.setText(bookmarkCursor.getString(bookmarkCursor.getColumnIndex(BookmarksDatabaseHelper.BOOKMARK_URL))); - - // Allow the "enter" key on the keyboard to save the bookmark from `edit_bookmark_url_edittext`. - bookmarkUrlEditText.setOnKeyListener(new View.OnKeyListener() { - public boolean onKey(View v, int keyCode, KeyEvent event) { - // If the event is a key-down on the `enter` button, select the PositiveButton `Save`. - if ((event.getAction() == KeyEvent.ACTION_DOWN) && (keyCode == KeyEvent.KEYCODE_ENTER)) { - // Trigger `editBookmarkListener` and return the DialogFragment to the parent activity. - editBookmarkListener.onSaveEditBookmark(EditBookmarkDialog.this); - // Manually dismiss the `AlertDialog`. - alertDialog.dismiss(); - // Consume the event. - return true; - } else { // If any other key was pressed, do not consume the event. - return false; - } + // Allow the enter key on the keyboard to save the bookmark from the bookmark name edit text. + nameEditText.setOnKeyListener((View v, int keyCode, KeyEvent event) -> { + // Save the bookmark if the event is a key-down on the "enter" button. + if ((event.getAction() == KeyEvent.ACTION_DOWN) && (keyCode == KeyEvent.KEYCODE_ENTER) && editButton.isEnabled()) { // The enter key was pressed and the edit button is enabled. + // Trigger the `Listener` and return the `DialogFragment` to the parent activity. + editBookmarkListener.onSaveBookmark(EditBookmarkDialog.this, selectedBookmarkDatabaseId); + + // Manually dismiss `alertDialog`. + alertDialog.dismiss(); + + // Consume the event. + return true; + } else { // If any other key was pressed, or if the edit button is currently disabled, do not consume the event. + return false; } }); - // `onCreateDialog` requires the return of an `AlertDialog`. + // Allow the enter key on the keyboard to save the bookmark from the URL edit text. + urlEditText.setOnKeyListener((View v, int keyCode, KeyEvent event) -> { + // Save the bookmark if the event is a key-down on the "enter" button. + if ((event.getAction() == KeyEvent.ACTION_DOWN) && (keyCode == KeyEvent.KEYCODE_ENTER) && editButton.isEnabled()) { // The enter key was pressed and the edit button is enabled. + // Trigger the `Listener` and return the DialogFragment to the parent activity. + editBookmarkListener.onSaveBookmark(EditBookmarkDialog.this, selectedBookmarkDatabaseId); + + // Manually dismiss the alert dialog. + alertDialog.dismiss(); + + // Consume the event. + return true; + } else { // If any other key was pressed, or if the edit button is currently disabled, do not consume the event. + return false; + } + }); + + // Return the alert dialog. return alertDialog; } + + private void updateEditButton() { + // Get the text from the `EditTexts`. + String newName = nameEditText.getText().toString(); + String newUrl = urlEditText.getText().toString(); + + // Has the favorite icon changed? + boolean iconChanged = newIconRadioButton.isChecked(); + + // Has the name changed? + boolean nameChanged = !newName.equals(currentName); + + // Has the URL changed? + boolean urlChanged = !newUrl.equals(currentUrl); + + // Update the enabled status of the edit button. + editButton.setEnabled(iconChanged || nameChanged || urlChanged); + } } \ No newline at end of file